1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2022 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 #if defined(__FreeBSD__) 16 #include <linux/math64.h> 17 #endif 18 #include <net/mac80211.h> 19 #include <net/ieee80211_radiotap.h> 20 #include <net/tcp.h> 21 #if defined(__FreeBSD__) 22 #include <linux/udp.h> 23 #endif 24 25 #include "iwl-drv.h" 26 #include "iwl-op-mode.h" 27 #include "iwl-io.h" 28 #include "mvm.h" 29 #include "sta.h" 30 #include "time-event.h" 31 #include "iwl-eeprom-parse.h" 32 #include "iwl-phy-db.h" 33 #ifdef CONFIG_NL80211_TESTMODE 34 #include "testmode.h" 35 #endif 36 #include "fw/error-dump.h" 37 #include "iwl-prph.h" 38 #include "iwl-nvm-parse.h" 39 40 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 41 { 42 .max = 1, 43 .types = BIT(NL80211_IFTYPE_STATION), 44 }, 45 { 46 .max = 1, 47 .types = BIT(NL80211_IFTYPE_AP) | 48 BIT(NL80211_IFTYPE_P2P_CLIENT) | 49 BIT(NL80211_IFTYPE_P2P_GO), 50 }, 51 { 52 .max = 1, 53 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 54 }, 55 }; 56 57 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 58 { 59 .num_different_channels = 2, 60 .max_interfaces = 3, 61 .limits = iwl_mvm_limits, 62 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 63 }, 64 }; 65 66 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 67 /* 68 * Use the reserved field to indicate magic values. 69 * these values will only be used internally by the driver, 70 * and won't make it to the fw (reserved will be 0). 71 * BC_FILTER_MAGIC_IP - configure the val of this attribute to 72 * be the vif's ip address. in case there is not a single 73 * ip address (0, or more than 1), this attribute will 74 * be skipped. 75 * BC_FILTER_MAGIC_MAC - set the val of this attribute to 76 * the LSB bytes of the vif's mac address 77 */ 78 enum { 79 BC_FILTER_MAGIC_NONE = 0, 80 BC_FILTER_MAGIC_IP, 81 BC_FILTER_MAGIC_MAC, 82 }; 83 84 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { 85 { 86 /* arp */ 87 .discard = 0, 88 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, 89 .attrs = { 90 { 91 /* frame type - arp, hw type - ethernet */ 92 .offset_type = 93 BCAST_FILTER_OFFSET_PAYLOAD_START, 94 .offset = sizeof(rfc1042_header), 95 .val = cpu_to_be32(0x08060001), 96 .mask = cpu_to_be32(0xffffffff), 97 }, 98 { 99 /* arp dest ip */ 100 .offset_type = 101 BCAST_FILTER_OFFSET_PAYLOAD_START, 102 .offset = sizeof(rfc1042_header) + 2 + 103 sizeof(struct arphdr) + 104 ETH_ALEN + sizeof(__be32) + 105 ETH_ALEN, 106 .mask = cpu_to_be32(0xffffffff), 107 /* mark it as special field */ 108 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), 109 }, 110 }, 111 }, 112 { 113 /* dhcp offer bcast */ 114 .discard = 0, 115 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, 116 .attrs = { 117 { 118 /* udp dest port - 68 (bootp client)*/ 119 .offset_type = BCAST_FILTER_OFFSET_IP_END, 120 .offset = offsetof(struct udphdr, dest), 121 .val = cpu_to_be32(0x00440000), 122 .mask = cpu_to_be32(0xffff0000), 123 }, 124 { 125 /* dhcp - lsb bytes of client hw address */ 126 .offset_type = BCAST_FILTER_OFFSET_IP_END, 127 .offset = 38, 128 .mask = cpu_to_be32(0xffffffff), 129 /* mark it as special field */ 130 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), 131 }, 132 }, 133 }, 134 /* last filter must be empty */ 135 {}, 136 }; 137 #endif 138 139 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 140 .max_peers = IWL_MVM_TOF_MAX_APS, 141 .report_ap_tsf = 1, 142 .randomize_mac_addr = 1, 143 144 .ftm = { 145 .supported = 1, 146 .asap = 1, 147 .non_asap = 1, 148 .request_lci = 1, 149 .request_civicloc = 1, 150 .trigger_based = 1, 151 .non_trigger_based = 1, 152 .max_bursts_exponent = -1, /* all supported */ 153 .max_ftms_per_burst = 0, /* no limits */ 154 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 155 BIT(NL80211_CHAN_WIDTH_20) | 156 BIT(NL80211_CHAN_WIDTH_40) | 157 BIT(NL80211_CHAN_WIDTH_80) | 158 BIT(NL80211_CHAN_WIDTH_160), 159 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 160 BIT(NL80211_PREAMBLE_HT) | 161 BIT(NL80211_PREAMBLE_VHT) | 162 BIT(NL80211_PREAMBLE_HE), 163 }, 164 }; 165 166 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 167 enum set_key_cmd cmd, 168 struct ieee80211_vif *vif, 169 struct ieee80211_sta *sta, 170 struct ieee80211_key_conf *key); 171 172 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 173 { 174 int i; 175 176 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 177 for (i = 0; i < NUM_PHY_CTX; i++) { 178 mvm->phy_ctxts[i].id = i; 179 mvm->phy_ctxts[i].ref = 0; 180 } 181 } 182 183 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 184 const char *alpha2, 185 enum iwl_mcc_source src_id, 186 bool *changed) 187 { 188 struct ieee80211_regdomain *regd = NULL; 189 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 190 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 191 struct iwl_mcc_update_resp *resp; 192 u8 resp_ver; 193 194 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 195 196 lockdep_assert_held(&mvm->mutex); 197 198 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 199 if (IS_ERR_OR_NULL(resp)) { 200 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 201 PTR_ERR_OR_ZERO(resp)); 202 resp = NULL; 203 goto out; 204 } 205 206 if (changed) { 207 u32 status = le32_to_cpu(resp->status); 208 209 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 210 status == MCC_RESP_ILLEGAL); 211 } 212 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP, 213 MCC_UPDATE_CMD, 0); 214 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver); 215 216 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 217 __le32_to_cpu(resp->n_channels), 218 resp->channels, 219 __le16_to_cpu(resp->mcc), 220 __le16_to_cpu(resp->geo_info), 221 __le16_to_cpu(resp->cap), resp_ver); 222 /* Store the return source id */ 223 src_id = resp->source_id; 224 if (IS_ERR_OR_NULL(regd)) { 225 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 226 PTR_ERR_OR_ZERO(regd)); 227 goto out; 228 } 229 230 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 231 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 232 mvm->lar_regdom_set = true; 233 mvm->mcc_src = src_id; 234 235 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc)); 236 237 out: 238 kfree(resp); 239 return regd; 240 } 241 242 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 243 { 244 bool changed; 245 struct ieee80211_regdomain *regd; 246 247 if (!iwl_mvm_is_lar_supported(mvm)) 248 return; 249 250 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 251 if (!IS_ERR_OR_NULL(regd)) { 252 /* only update the regulatory core if changed */ 253 if (changed) 254 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 255 256 kfree(regd); 257 } 258 } 259 260 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 261 bool *changed) 262 { 263 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 264 iwl_mvm_is_wifi_mcc_supported(mvm) ? 265 MCC_SOURCE_GET_CURRENT : 266 MCC_SOURCE_OLD_FW, changed); 267 } 268 269 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 270 { 271 enum iwl_mcc_source used_src; 272 struct ieee80211_regdomain *regd; 273 int ret; 274 bool changed; 275 const struct ieee80211_regdomain *r = 276 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd); 277 278 if (!r) 279 return -ENOENT; 280 281 /* save the last source in case we overwrite it below */ 282 used_src = mvm->mcc_src; 283 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 284 /* Notify the firmware we support wifi location updates */ 285 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 286 if (!IS_ERR_OR_NULL(regd)) 287 kfree(regd); 288 } 289 290 /* Now set our last stored MCC and source */ 291 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 292 &changed); 293 if (IS_ERR_OR_NULL(regd)) 294 return -EIO; 295 296 /* update cfg80211 if the regdomain was changed */ 297 if (changed) 298 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd); 299 else 300 ret = 0; 301 302 kfree(regd); 303 return ret; 304 } 305 306 static const u8 he_if_types_ext_capa_sta[] = { 307 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 308 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 309 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF, 310 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 311 }; 312 313 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = { 314 { 315 .iftype = NL80211_IFTYPE_STATION, 316 .extended_capabilities = he_if_types_ext_capa_sta, 317 .extended_capabilities_mask = he_if_types_ext_capa_sta, 318 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 319 }, 320 }; 321 322 static int 323 iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 324 { 325 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 326 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 327 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 328 return 0; 329 } 330 331 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 332 { 333 struct ieee80211_hw *hw = mvm->hw; 334 int num_mac, ret, i; 335 static const u32 mvm_ciphers[] = { 336 WLAN_CIPHER_SUITE_WEP40, 337 WLAN_CIPHER_SUITE_WEP104, 338 WLAN_CIPHER_SUITE_TKIP, 339 WLAN_CIPHER_SUITE_CCMP, 340 }; 341 #ifdef CONFIG_PM_SLEEP 342 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 343 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 344 #endif 345 346 /* Tell mac80211 our characteristics */ 347 ieee80211_hw_set(hw, SIGNAL_DBM); 348 ieee80211_hw_set(hw, SPECTRUM_MGMT); 349 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 350 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 351 ieee80211_hw_set(hw, SUPPORTS_PS); 352 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 353 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 354 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 355 ieee80211_hw_set(hw, CONNECTION_MONITOR); 356 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 357 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 358 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 359 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 360 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 361 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 362 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 363 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 364 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 365 /* 366 * On older devices, enabling TX A-MSDU occasionally leads to 367 * something getting messed up, the command read from the FIFO 368 * gets out of sync and isn't a TX command, so that we have an 369 * assert EDC. 370 * 371 * It's not clear where the bug is, but since we didn't used to 372 * support A-MSDU until moving the mac80211 iTXQs, just leave it 373 * for older devices. We also don't see this issue on any newer 374 * devices. 375 */ 376 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 377 ieee80211_hw_set(hw, TX_AMSDU); 378 ieee80211_hw_set(hw, TX_FRAG_LIST); 379 380 if (iwl_mvm_has_tlc_offload(mvm)) { 381 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 382 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 383 } 384 385 if (iwl_mvm_has_new_rx_api(mvm)) 386 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 387 388 if (fw_has_capa(&mvm->fw->ucode_capa, 389 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 390 ieee80211_hw_set(hw, AP_LINK_PS); 391 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 392 /* 393 * we absolutely need this for the new TX API since that comes 394 * with many more queues than the current code can deal with 395 * for station powersave 396 */ 397 return -EINVAL; 398 } 399 400 if (mvm->trans->num_rx_queues > 1) 401 ieee80211_hw_set(hw, USES_RSS); 402 403 if (mvm->trans->max_skb_frags) 404 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 405 406 hw->queues = IEEE80211_NUM_ACS; 407 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 408 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 409 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 410 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 411 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 412 413 hw->radiotap_timestamp.units_pos = 414 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 415 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 416 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 417 hw->radiotap_timestamp.accuracy = 22; 418 419 if (!iwl_mvm_has_tlc_offload(mvm)) 420 hw->rate_control_algorithm = RS_NAME; 421 422 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 423 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 424 hw->max_tx_fragments = mvm->trans->max_skb_frags; 425 426 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 427 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 428 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 429 hw->wiphy->cipher_suites = mvm->ciphers; 430 431 if (iwl_mvm_has_new_rx_api(mvm)) { 432 mvm->ciphers[hw->wiphy->n_cipher_suites] = 433 WLAN_CIPHER_SUITE_GCMP; 434 hw->wiphy->n_cipher_suites++; 435 mvm->ciphers[hw->wiphy->n_cipher_suites] = 436 WLAN_CIPHER_SUITE_GCMP_256; 437 hw->wiphy->n_cipher_suites++; 438 } 439 440 if (iwlwifi_mod_params.swcrypto) 441 IWL_ERR(mvm, 442 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n"); 443 if (!iwlwifi_mod_params.bt_coex_active) 444 IWL_ERR(mvm, 445 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n"); 446 447 ieee80211_hw_set(hw, MFP_CAPABLE); 448 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC; 449 hw->wiphy->n_cipher_suites++; 450 if (iwl_mvm_has_new_rx_api(mvm)) { 451 mvm->ciphers[hw->wiphy->n_cipher_suites] = 452 WLAN_CIPHER_SUITE_BIP_GMAC_128; 453 hw->wiphy->n_cipher_suites++; 454 mvm->ciphers[hw->wiphy->n_cipher_suites] = 455 WLAN_CIPHER_SUITE_BIP_GMAC_256; 456 hw->wiphy->n_cipher_suites++; 457 } 458 459 /* currently FW API supports only one optional cipher scheme */ 460 if (mvm->fw->cs[0].cipher) { 461 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; 462 struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; 463 464 mvm->hw->n_cipher_schemes = 1; 465 466 cs->cipher = le32_to_cpu(fwcs->cipher); 467 cs->iftype = BIT(NL80211_IFTYPE_STATION); 468 cs->hdr_len = fwcs->hdr_len; 469 cs->pn_len = fwcs->pn_len; 470 cs->pn_off = fwcs->pn_off; 471 cs->key_idx_off = fwcs->key_idx_off; 472 cs->key_idx_mask = fwcs->key_idx_mask; 473 cs->key_idx_shift = fwcs->key_idx_shift; 474 cs->mic_len = fwcs->mic_len; 475 476 mvm->hw->cipher_schemes = mvm->cs; 477 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; 478 hw->wiphy->n_cipher_suites++; 479 } 480 481 if (fw_has_capa(&mvm->fw->ucode_capa, 482 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 483 wiphy_ext_feature_set(hw->wiphy, 484 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 485 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 486 } 487 488 if (fw_has_capa(&mvm->fw->ucode_capa, 489 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT)) 490 wiphy_ext_feature_set(hw->wiphy, 491 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT); 492 493 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 494 hw->wiphy->features |= 495 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 496 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 497 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 498 499 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 500 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 501 hw->chanctx_data_size = sizeof(u16); 502 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 503 504 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 505 BIT(NL80211_IFTYPE_P2P_CLIENT) | 506 BIT(NL80211_IFTYPE_AP) | 507 BIT(NL80211_IFTYPE_P2P_GO) | 508 BIT(NL80211_IFTYPE_P2P_DEVICE) | 509 BIT(NL80211_IFTYPE_ADHOC); 510 511 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 512 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 513 514 /* The new Tx API does not allow to pass the key or keyid of a MPDU to 515 * the hw, preventing us to control which key(id) to use per MPDU. 516 * Till that's fixed we can't use Extended Key ID for the newer cards. 517 */ 518 if (!iwl_mvm_has_new_tx_api(mvm)) 519 wiphy_ext_feature_set(hw->wiphy, 520 NL80211_EXT_FEATURE_EXT_KEY_ID); 521 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 522 523 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 524 if (iwl_mvm_is_lar_supported(mvm)) 525 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 526 else 527 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 528 REGULATORY_DISABLE_BEACON_HINTS; 529 530 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 531 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 532 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ; 533 534 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 535 hw->wiphy->n_iface_combinations = 536 ARRAY_SIZE(iwl_mvm_iface_combinations); 537 538 hw->wiphy->max_remain_on_channel_duration = 10000; 539 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 540 541 /* Extract MAC address */ 542 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 543 hw->wiphy->addresses = mvm->addresses; 544 hw->wiphy->n_addresses = 1; 545 546 /* Extract additional MAC addresses if available */ 547 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 548 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 549 550 for (i = 1; i < num_mac; i++) { 551 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 552 ETH_ALEN); 553 mvm->addresses[i].addr[5]++; 554 hw->wiphy->n_addresses++; 555 } 556 557 iwl_mvm_reset_phy_ctxts(mvm); 558 559 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 560 561 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 562 563 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 564 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 565 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 566 567 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 568 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 569 else 570 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 571 572 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 573 hw->wiphy->bands[NL80211_BAND_2GHZ] = 574 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 575 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 576 hw->wiphy->bands[NL80211_BAND_5GHZ] = 577 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 578 579 if (fw_has_capa(&mvm->fw->ucode_capa, 580 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 581 fw_has_api(&mvm->fw->ucode_capa, 582 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 583 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 584 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 585 } 586 if (fw_has_capa(&mvm->fw->ucode_capa, 587 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) && 588 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels) 589 hw->wiphy->bands[NL80211_BAND_6GHZ] = 590 &mvm->nvm_data->bands[NL80211_BAND_6GHZ]; 591 592 hw->wiphy->hw_version = mvm->trans->hw_id; 593 594 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 595 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 596 else 597 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 598 599 hw->wiphy->max_sched_scan_reqs = 1; 600 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 601 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 602 /* we create the 802.11 header and zero length SSID IE. */ 603 hw->wiphy->max_sched_scan_ie_len = 604 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 605 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 606 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 607 608 /* 609 * the firmware uses u8 for num of iterations, but 0xff is saved for 610 * infinite loop, so the maximum number of iterations is actually 254. 611 */ 612 hw->wiphy->max_sched_scan_plan_iterations = 254; 613 614 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 615 NL80211_FEATURE_LOW_PRIORITY_SCAN | 616 NL80211_FEATURE_P2P_GO_OPPPS | 617 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 618 NL80211_FEATURE_DYNAMIC_SMPS | 619 NL80211_FEATURE_STATIC_SMPS | 620 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 621 622 if (fw_has_capa(&mvm->fw->ucode_capa, 623 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 624 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 625 if (fw_has_capa(&mvm->fw->ucode_capa, 626 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 627 hw->wiphy->features |= NL80211_FEATURE_QUIET; 628 629 if (fw_has_capa(&mvm->fw->ucode_capa, 630 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 631 hw->wiphy->features |= 632 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 633 634 if (fw_has_capa(&mvm->fw->ucode_capa, 635 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 636 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 637 638 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL, 639 IWL_FW_CMD_VER_UNKNOWN) == 3) 640 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK; 641 642 if (fw_has_api(&mvm->fw->ucode_capa, 643 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 644 wiphy_ext_feature_set(hw->wiphy, 645 NL80211_EXT_FEATURE_SCAN_START_TIME); 646 wiphy_ext_feature_set(hw->wiphy, 647 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 648 } 649 650 if (iwl_mvm_is_oce_supported(mvm)) { 651 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0); 652 653 wiphy_ext_feature_set(hw->wiphy, 654 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 655 wiphy_ext_feature_set(hw->wiphy, 656 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 657 wiphy_ext_feature_set(hw->wiphy, 658 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 659 660 /* Old firmware also supports probe deferral and suppression */ 661 if (scan_ver < 15) 662 wiphy_ext_feature_set(hw->wiphy, 663 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 664 } 665 666 if (mvm->nvm_data->sku_cap_11ax_enable && 667 !iwlwifi_mod_params.disable_11ax) { 668 hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa; 669 hw->wiphy->num_iftype_ext_capab = 670 ARRAY_SIZE(he_iftypes_ext_capa); 671 672 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 673 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 674 } 675 676 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 677 678 #ifdef CONFIG_PM_SLEEP 679 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 680 mvm->trans->ops->d3_suspend && 681 mvm->trans->ops->d3_resume && 682 device_can_wakeup(mvm->trans->dev)) { 683 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 684 WIPHY_WOWLAN_DISCONNECT | 685 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 686 WIPHY_WOWLAN_RFKILL_RELEASE | 687 WIPHY_WOWLAN_NET_DETECT; 688 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 689 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 690 WIPHY_WOWLAN_4WAY_HANDSHAKE; 691 692 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 693 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 694 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 695 mvm->wowlan.max_nd_match_sets = 696 iwl_umac_scan_get_max_profiles(mvm->fw); 697 hw->wiphy->wowlan = &mvm->wowlan; 698 } 699 #endif 700 701 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 702 /* assign default bcast filtering configuration */ 703 mvm->bcast_filters = iwl_mvm_default_bcast_filters; 704 #endif 705 706 ret = iwl_mvm_leds_init(mvm); 707 if (ret) 708 return ret; 709 710 if (fw_has_capa(&mvm->fw->ucode_capa, 711 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 712 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 713 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 714 ieee80211_hw_set(hw, TDLS_WIDER_BW); 715 } 716 717 if (fw_has_capa(&mvm->fw->ucode_capa, 718 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 719 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 720 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 721 } 722 723 hw->netdev_features |= mvm->cfg->features; 724 if (!iwl_mvm_is_csum_supported(mvm)) 725 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK; 726 727 if (mvm->cfg->vht_mu_mimo_supported) 728 wiphy_ext_feature_set(hw->wiphy, 729 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 730 731 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT)) 732 wiphy_ext_feature_set(hw->wiphy, 733 NL80211_EXT_FEATURE_PROTECTED_TWT); 734 735 iwl_mvm_vendor_cmds_register(mvm); 736 737 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 738 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 739 740 ret = ieee80211_register_hw(mvm->hw); 741 if (ret) { 742 iwl_mvm_leds_exit(mvm); 743 } 744 745 return ret; 746 } 747 748 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 749 struct ieee80211_sta *sta) 750 { 751 if (likely(sta)) { 752 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 753 return; 754 } else { 755 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 756 return; 757 } 758 759 ieee80211_free_txskb(mvm->hw, skb); 760 } 761 762 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 763 struct ieee80211_tx_control *control, 764 struct sk_buff *skb) 765 { 766 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 767 struct ieee80211_sta *sta = control->sta; 768 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 769 struct ieee80211_hdr *hdr = (void *)skb->data; 770 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 771 IEEE80211_TX_CTL_TX_OFFCHAN; 772 773 if (iwl_mvm_is_radio_killed(mvm)) { 774 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 775 goto drop; 776 } 777 778 if (offchannel && 779 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 780 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 781 goto drop; 782 783 /* 784 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs 785 * so we treat the others as broadcast 786 */ 787 if (ieee80211_is_mgmt(hdr->frame_control)) 788 sta = NULL; 789 790 /* If there is no sta, and it's not offchannel - send through AP */ 791 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 792 !offchannel) { 793 struct iwl_mvm_vif *mvmvif = 794 iwl_mvm_vif_from_mac80211(info->control.vif); 795 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id); 796 797 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) { 798 /* mac80211 holds rcu read lock */ 799 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 800 if (IS_ERR_OR_NULL(sta)) 801 goto drop; 802 } 803 } 804 805 iwl_mvm_tx_skb(mvm, skb, sta); 806 return; 807 drop: 808 ieee80211_free_txskb(hw, skb); 809 } 810 811 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 812 { 813 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 814 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 815 struct sk_buff *skb = NULL; 816 817 /* 818 * No need for threads to be pending here, they can leave the first 819 * taker all the work. 820 * 821 * mvmtxq->tx_request logic: 822 * 823 * If 0, no one is currently TXing, set to 1 to indicate current thread 824 * will now start TX and other threads should quit. 825 * 826 * If 1, another thread is currently TXing, set to 2 to indicate to 827 * that thread that there was another request. Since that request may 828 * have raced with the check whether the queue is empty, the TXing 829 * thread should check the queue's status one more time before leaving. 830 * This check is done in order to not leave any TX hanging in the queue 831 * until the next TX invocation (which may not even happen). 832 * 833 * If 2, another thread is currently TXing, and it will already double 834 * check the queue, so do nothing. 835 */ 836 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 837 return; 838 839 rcu_read_lock(); 840 do { 841 while (likely(!mvmtxq->stopped && 842 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) { 843 skb = ieee80211_tx_dequeue(hw, txq); 844 845 if (!skb) { 846 if (txq->sta) 847 IWL_DEBUG_TX(mvm, 848 "TXQ of sta %pM tid %d is now empty\n", 849 txq->sta->addr, 850 txq->tid); 851 break; 852 } 853 854 iwl_mvm_tx_skb(mvm, skb, txq->sta); 855 } 856 } while (atomic_dec_return(&mvmtxq->tx_request)); 857 rcu_read_unlock(); 858 } 859 860 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 861 struct ieee80211_txq *txq) 862 { 863 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 864 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 865 866 /* 867 * Please note that racing is handled very carefully here: 868 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is 869 * deleted afterwards. 870 * This means that if: 871 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list): 872 * queue is allocated and we can TX. 873 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list): 874 * a race, should defer the frame. 875 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list): 876 * need to allocate the queue and defer the frame. 877 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list): 878 * queue is already scheduled for allocation, no need to allocate, 879 * should defer the frame. 880 */ 881 882 /* If the queue is allocated TX and return. */ 883 if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) { 884 /* 885 * Check that list is empty to avoid a race where txq_id is 886 * already updated, but the queue allocation work wasn't 887 * finished 888 */ 889 if (unlikely(txq->sta && !list_empty(&mvmtxq->list))) 890 return; 891 892 iwl_mvm_mac_itxq_xmit(hw, txq); 893 return; 894 } 895 896 /* The list is being deleted only after the queue is fully allocated. */ 897 if (!list_empty(&mvmtxq->list)) 898 return; 899 900 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 901 schedule_work(&mvm->add_stream_wk); 902 } 903 904 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 905 do { \ 906 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 907 break; \ 908 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 909 } while (0) 910 911 static void 912 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 913 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 914 enum ieee80211_ampdu_mlme_action action) 915 { 916 struct iwl_fw_dbg_trigger_tlv *trig; 917 struct iwl_fw_dbg_trigger_ba *ba_trig; 918 919 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 920 FW_DBG_TRIGGER_BA); 921 if (!trig) 922 return; 923 924 ba_trig = (void *)trig->data; 925 926 switch (action) { 927 case IEEE80211_AMPDU_TX_OPERATIONAL: { 928 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 929 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 930 931 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 932 "TX AGG START: MAC %pM tid %d ssn %d\n", 933 sta->addr, tid, tid_data->ssn); 934 break; 935 } 936 case IEEE80211_AMPDU_TX_STOP_CONT: 937 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 938 "TX AGG STOP: MAC %pM tid %d\n", 939 sta->addr, tid); 940 break; 941 case IEEE80211_AMPDU_RX_START: 942 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 943 "RX AGG START: MAC %pM tid %d ssn %d\n", 944 sta->addr, tid, rx_ba_ssn); 945 break; 946 case IEEE80211_AMPDU_RX_STOP: 947 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 948 "RX AGG STOP: MAC %pM tid %d\n", 949 sta->addr, tid); 950 break; 951 default: 952 break; 953 } 954 } 955 956 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 957 struct ieee80211_vif *vif, 958 struct ieee80211_ampdu_params *params) 959 { 960 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 961 int ret; 962 struct ieee80211_sta *sta = params->sta; 963 enum ieee80211_ampdu_mlme_action action = params->action; 964 u16 tid = params->tid; 965 u16 *ssn = ¶ms->ssn; 966 u16 buf_size = params->buf_size; 967 bool amsdu = params->amsdu; 968 u16 timeout = params->timeout; 969 970 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 971 sta->addr, tid, action); 972 973 if (!(mvm->nvm_data->sku_cap_11n_enable)) 974 return -EACCES; 975 976 mutex_lock(&mvm->mutex); 977 978 switch (action) { 979 case IEEE80211_AMPDU_RX_START: 980 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == 981 iwl_mvm_sta_from_mac80211(sta)->sta_id) { 982 struct iwl_mvm_vif *mvmvif; 983 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 984 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 985 986 mdata->opened_rx_ba_sessions = true; 987 mvmvif = iwl_mvm_vif_from_mac80211(vif); 988 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 989 } 990 if (!iwl_enable_rx_ampdu()) { 991 ret = -EINVAL; 992 break; 993 } 994 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 995 timeout); 996 break; 997 case IEEE80211_AMPDU_RX_STOP: 998 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 999 timeout); 1000 break; 1001 case IEEE80211_AMPDU_TX_START: 1002 if (!iwl_enable_tx_ampdu()) { 1003 ret = -EINVAL; 1004 break; 1005 } 1006 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1007 break; 1008 case IEEE80211_AMPDU_TX_STOP_CONT: 1009 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1010 break; 1011 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1012 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1013 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1014 break; 1015 case IEEE80211_AMPDU_TX_OPERATIONAL: 1016 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1017 buf_size, amsdu); 1018 break; 1019 default: 1020 WARN_ON_ONCE(1); 1021 ret = -EINVAL; 1022 break; 1023 } 1024 1025 if (!ret) { 1026 u16 rx_ba_ssn = 0; 1027 1028 if (action == IEEE80211_AMPDU_RX_START) 1029 rx_ba_ssn = *ssn; 1030 1031 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1032 rx_ba_ssn, action); 1033 } 1034 mutex_unlock(&mvm->mutex); 1035 1036 return ret; 1037 } 1038 1039 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1040 struct ieee80211_vif *vif) 1041 { 1042 struct iwl_mvm *mvm = data; 1043 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1044 1045 mvmvif->uploaded = false; 1046 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1047 1048 spin_lock_bh(&mvm->time_event_lock); 1049 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1050 spin_unlock_bh(&mvm->time_event_lock); 1051 1052 mvmvif->phy_ctxt = NULL; 1053 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1054 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); 1055 } 1056 1057 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1058 { 1059 iwl_mvm_stop_device(mvm); 1060 1061 mvm->cur_aid = 0; 1062 1063 mvm->scan_status = 0; 1064 mvm->ps_disabled = false; 1065 mvm->rfkill_safe_init_done = false; 1066 1067 /* just in case one was running */ 1068 iwl_mvm_cleanup_roc_te(mvm); 1069 ieee80211_remain_on_channel_expired(mvm->hw); 1070 1071 iwl_mvm_ftm_restart(mvm); 1072 1073 /* 1074 * cleanup all interfaces, even inactive ones, as some might have 1075 * gone down during the HW restart 1076 */ 1077 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1078 1079 mvm->p2p_device_vif = NULL; 1080 1081 iwl_mvm_reset_phy_ctxts(mvm); 1082 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1083 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1084 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1085 1086 ieee80211_wake_queues(mvm->hw); 1087 1088 mvm->vif_count = 0; 1089 mvm->rx_ba_sessions = 0; 1090 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1091 mvm->monitor_on = false; 1092 1093 /* keep statistics ticking */ 1094 iwl_mvm_accu_radio_stats(mvm); 1095 } 1096 1097 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1098 { 1099 int ret; 1100 1101 lockdep_assert_held(&mvm->mutex); 1102 1103 ret = iwl_mvm_mei_get_ownership(mvm); 1104 if (ret) 1105 return ret; 1106 1107 if (mvm->mei_nvm_data) { 1108 /* We got the NIC, we can now free the MEI NVM data */ 1109 kfree(mvm->mei_nvm_data); 1110 mvm->mei_nvm_data = NULL; 1111 1112 /* 1113 * We can't free the nvm_data we allocated based on the SAP 1114 * data because we registered to cfg80211 with the channels 1115 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data 1116 * just in order to be able free it later. 1117 * NULLify nvm_data so that we will read the NVM from the 1118 * firmware this time. 1119 */ 1120 mvm->temp_nvm_data = mvm->nvm_data; 1121 mvm->nvm_data = NULL; 1122 } 1123 1124 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1125 /* 1126 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1127 * so later code will - from now on - see that we're doing it. 1128 */ 1129 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1130 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1131 /* Clean up some internal and mac80211 state on restart */ 1132 iwl_mvm_restart_cleanup(mvm); 1133 } 1134 ret = iwl_mvm_up(mvm); 1135 1136 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1137 NULL); 1138 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1139 NULL); 1140 1141 mvm->last_reset_or_resume_time_jiffies = jiffies; 1142 1143 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1144 /* Something went wrong - we need to finish some cleanup 1145 * that normally iwl_mvm_mac_restart_complete() below 1146 * would do. 1147 */ 1148 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1149 } 1150 1151 return ret; 1152 } 1153 1154 static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1155 { 1156 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1157 int ret; 1158 int retry, max_retry = 0; 1159 1160 mutex_lock(&mvm->mutex); 1161 1162 /* we are starting the mac not in error flow, and restart is enabled */ 1163 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && 1164 iwlwifi_mod_params.fw_restart) { 1165 max_retry = IWL_MAX_INIT_RETRY; 1166 /* 1167 * This will prevent mac80211 recovery flows to trigger during 1168 * init failures 1169 */ 1170 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1171 } 1172 1173 for (retry = 0; retry <= max_retry; retry++) { 1174 ret = __iwl_mvm_mac_start(mvm); 1175 if (!ret) 1176 break; 1177 1178 IWL_ERR(mvm, "mac start retry %d\n", retry); 1179 } 1180 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); 1181 1182 mutex_unlock(&mvm->mutex); 1183 1184 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1185 1186 return ret; 1187 } 1188 1189 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1190 { 1191 int ret; 1192 1193 mutex_lock(&mvm->mutex); 1194 1195 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1196 1197 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1198 if (ret) 1199 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1200 ret); 1201 1202 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1203 1204 /* 1205 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1206 * of packets the FW sent out, so we must reconnect. 1207 */ 1208 iwl_mvm_teardown_tdls_peers(mvm); 1209 1210 mutex_unlock(&mvm->mutex); 1211 } 1212 1213 static void 1214 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1215 enum ieee80211_reconfig_type reconfig_type) 1216 { 1217 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1218 1219 switch (reconfig_type) { 1220 case IEEE80211_RECONFIG_TYPE_RESTART: 1221 iwl_mvm_restart_complete(mvm); 1222 break; 1223 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1224 break; 1225 } 1226 } 1227 1228 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1229 { 1230 lockdep_assert_held(&mvm->mutex); 1231 1232 iwl_mvm_ftm_initiator_smooth_stop(mvm); 1233 1234 /* firmware counters are obviously reset now, but we shouldn't 1235 * partially track so also clear the fw_reset_accu counters. 1236 */ 1237 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1238 1239 /* async_handlers_wk is now blocked */ 1240 1241 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) < 12) 1242 iwl_mvm_rm_aux_sta(mvm); 1243 1244 iwl_mvm_stop_device(mvm); 1245 1246 iwl_mvm_async_handlers_purge(mvm); 1247 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1248 1249 /* 1250 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1251 * hw (as restart_complete() won't be called in this case) and mac80211 1252 * won't execute the restart. 1253 * But make sure to cleanup interfaces that have gone down before/during 1254 * HW restart was requested. 1255 */ 1256 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1257 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1258 &mvm->status)) 1259 ieee80211_iterate_interfaces(mvm->hw, 0, 1260 iwl_mvm_cleanup_iterator, mvm); 1261 1262 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1263 * make sure there's nothing left there and warn if any is found. 1264 */ 1265 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1266 int i; 1267 1268 for (i = 0; i < mvm->max_scans; i++) { 1269 if (WARN_ONCE(mvm->scan_uid_status[i], 1270 "UMAC scan UID %d status was not cleaned\n", 1271 i)) 1272 mvm->scan_uid_status[i] = 0; 1273 } 1274 } 1275 } 1276 1277 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1278 { 1279 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1280 1281 flush_work(&mvm->async_handlers_wk); 1282 flush_work(&mvm->add_stream_wk); 1283 1284 /* 1285 * Lock and clear the firmware running bit here already, so that 1286 * new commands coming in elsewhere, e.g. from debugfs, will not 1287 * be able to proceed. This is important here because one of those 1288 * debugfs files causes the firmware dump to be triggered, and if we 1289 * don't stop debugfs accesses before canceling that it could be 1290 * retriggered after we flush it but before we've cleared the bit. 1291 */ 1292 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1293 1294 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1295 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1296 1297 /* 1298 * The work item could be running or queued if the 1299 * ROC time event stops just as we get here. 1300 */ 1301 flush_work(&mvm->roc_done_wk); 1302 1303 iwl_mvm_mei_set_sw_rfkill_state(mvm); 1304 1305 mutex_lock(&mvm->mutex); 1306 __iwl_mvm_mac_stop(mvm); 1307 mutex_unlock(&mvm->mutex); 1308 1309 /* 1310 * The worker might have been waiting for the mutex, let it run and 1311 * discover that its list is now empty. 1312 */ 1313 cancel_work_sync(&mvm->async_handlers_wk); 1314 } 1315 1316 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1317 { 1318 u16 i; 1319 1320 lockdep_assert_held(&mvm->mutex); 1321 1322 for (i = 0; i < NUM_PHY_CTX; i++) 1323 if (!mvm->phy_ctxts[i].ref) 1324 return &mvm->phy_ctxts[i]; 1325 1326 IWL_ERR(mvm, "No available PHY context\n"); 1327 return NULL; 1328 } 1329 1330 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1331 s16 tx_power) 1332 { 1333 u32 cmd_id = REDUCE_TX_POWER_CMD; 1334 int len; 1335 struct iwl_dev_tx_power_cmd cmd = { 1336 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1337 .common.mac_context_id = 1338 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1339 .common.pwr_restriction = cpu_to_le16(8 * tx_power), 1340 }; 1341 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 1342 IWL_FW_CMD_VER_UNKNOWN); 1343 1344 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1345 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1346 1347 if (cmd_ver == 6) 1348 len = sizeof(cmd.v6); 1349 else if (fw_has_api(&mvm->fw->ucode_capa, 1350 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1351 len = sizeof(cmd.v5); 1352 else if (fw_has_capa(&mvm->fw->ucode_capa, 1353 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1354 len = sizeof(cmd.v4); 1355 else 1356 len = sizeof(cmd.v3); 1357 1358 /* all structs have the same common part, add it */ 1359 len += sizeof(cmd.common); 1360 1361 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd); 1362 } 1363 1364 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1365 struct ieee80211_vif *vif) 1366 { 1367 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1368 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1369 int ret; 1370 1371 mutex_lock(&mvm->mutex); 1372 1373 if (vif->type == NL80211_IFTYPE_STATION) { 1374 struct iwl_mvm_sta *mvmsta; 1375 1376 mvmvif->csa_bcn_pending = false; 1377 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1378 mvmvif->ap_sta_id); 1379 1380 if (WARN_ON(!mvmsta)) { 1381 ret = -EIO; 1382 goto out_unlock; 1383 } 1384 1385 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1386 1387 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1388 1389 if (!fw_has_capa(&mvm->fw->ucode_capa, 1390 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1391 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1392 if (ret) 1393 goto out_unlock; 1394 1395 iwl_mvm_stop_session_protection(mvm, vif); 1396 } 1397 } 1398 1399 mvmvif->ps_disabled = false; 1400 1401 ret = iwl_mvm_power_update_ps(mvm); 1402 1403 out_unlock: 1404 if (mvmvif->csa_failed) 1405 ret = -EIO; 1406 mutex_unlock(&mvm->mutex); 1407 1408 return ret; 1409 } 1410 1411 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1412 struct ieee80211_vif *vif) 1413 { 1414 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1415 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1416 struct iwl_chan_switch_te_cmd cmd = { 1417 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1418 mvmvif->color)), 1419 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1420 }; 1421 1422 /* 1423 * In the new flow since FW is in charge of the timing, 1424 * if driver has canceled the channel switch he will receive the 1425 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it 1426 */ 1427 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 1428 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 1429 return; 1430 1431 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1432 1433 mutex_lock(&mvm->mutex); 1434 if (!fw_has_capa(&mvm->fw->ucode_capa, 1435 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1436 iwl_mvm_remove_csa_period(mvm, vif); 1437 else 1438 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1439 WIDE_ID(MAC_CONF_GROUP, 1440 CHANNEL_SWITCH_TIME_EVENT_CMD), 1441 0, sizeof(cmd), &cmd)); 1442 mvmvif->csa_failed = true; 1443 mutex_unlock(&mvm->mutex); 1444 1445 iwl_mvm_post_channel_switch(hw, vif); 1446 } 1447 1448 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1449 { 1450 struct iwl_mvm_vif *mvmvif; 1451 struct ieee80211_vif *vif; 1452 1453 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1454 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1455 1456 /* Trigger disconnect (should clear the CSA state) */ 1457 ieee80211_chswitch_done(vif, false); 1458 } 1459 1460 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1461 struct ieee80211_vif *vif) 1462 { 1463 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1464 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1465 int ret; 1466 1467 mvmvif->mvm = mvm; 1468 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1469 1470 /* 1471 * Not much to do here. The stack will not allow interface 1472 * types or combinations that we didn't advertise, so we 1473 * don't really have to check the types. 1474 */ 1475 1476 mutex_lock(&mvm->mutex); 1477 1478 /* make sure that beacon statistics don't go backwards with FW reset */ 1479 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1480 mvmvif->beacon_stats.accu_num_beacons += 1481 mvmvif->beacon_stats.num_beacons; 1482 1483 /* Allocate resources for the MAC context, and add it to the fw */ 1484 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1485 if (ret) 1486 goto out_unlock; 1487 1488 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1489 1490 /* Counting number of interfaces is needed for legacy PM */ 1491 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1492 mvm->vif_count++; 1493 1494 /* 1495 * The AP binding flow can be done only after the beacon 1496 * template is configured (which happens only in the mac80211 1497 * start_ap() flow), and adding the broadcast station can happen 1498 * only after the binding. 1499 * In addition, since modifying the MAC before adding a bcast 1500 * station is not allowed by the FW, delay the adding of MAC context to 1501 * the point where we can also add the bcast station. 1502 * In short: there's not much we can do at this point, other than 1503 * allocating resources :) 1504 */ 1505 if (vif->type == NL80211_IFTYPE_AP || 1506 vif->type == NL80211_IFTYPE_ADHOC) { 1507 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1508 if (ret) { 1509 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1510 goto out_release; 1511 } 1512 1513 /* 1514 * Only queue for this station is the mcast queue, 1515 * which shouldn't be in TFD mask anyway 1516 */ 1517 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 1518 0, vif->type, 1519 IWL_STA_MULTICAST); 1520 if (ret) 1521 goto out_release; 1522 1523 iwl_mvm_vif_dbgfs_register(mvm, vif); 1524 goto out_unlock; 1525 } 1526 1527 mvmvif->features |= hw->netdev_features; 1528 1529 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1530 if (ret) 1531 goto out_release; 1532 1533 ret = iwl_mvm_power_update_mac(mvm); 1534 if (ret) 1535 goto out_remove_mac; 1536 1537 /* beacon filtering */ 1538 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1539 if (ret) 1540 goto out_remove_mac; 1541 1542 if (!mvm->bf_allowed_vif && 1543 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1544 mvm->bf_allowed_vif = mvmvif; 1545 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1546 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1547 } 1548 1549 /* 1550 * P2P_DEVICE interface does not have a channel context assigned to it, 1551 * so a dedicated PHY context is allocated to it and the corresponding 1552 * MAC context is bound to it at this stage. 1553 */ 1554 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1555 1556 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1557 if (!mvmvif->phy_ctxt) { 1558 ret = -ENOSPC; 1559 goto out_free_bf; 1560 } 1561 1562 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1563 ret = iwl_mvm_binding_add_vif(mvm, vif); 1564 if (ret) 1565 goto out_unref_phy; 1566 1567 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1568 if (ret) 1569 goto out_unbind; 1570 1571 /* Save a pointer to p2p device vif, so it can later be used to 1572 * update the p2p device MAC when a GO is started/stopped */ 1573 mvm->p2p_device_vif = vif; 1574 } 1575 1576 iwl_mvm_tcm_add_vif(mvm, vif); 1577 INIT_DELAYED_WORK(&mvmvif->csa_work, 1578 iwl_mvm_channel_switch_disconnect_wk); 1579 1580 if (vif->type == NL80211_IFTYPE_MONITOR) 1581 mvm->monitor_on = true; 1582 1583 iwl_mvm_vif_dbgfs_register(mvm, vif); 1584 1585 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 1586 vif->type == NL80211_IFTYPE_STATION && !vif->p2p && 1587 !mvm->csme_vif && mvm->mei_registered) { 1588 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr); 1589 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev); 1590 mvm->csme_vif = vif; 1591 } 1592 1593 goto out_unlock; 1594 1595 out_unbind: 1596 iwl_mvm_binding_remove_vif(mvm, vif); 1597 out_unref_phy: 1598 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1599 out_free_bf: 1600 if (mvm->bf_allowed_vif == mvmvif) { 1601 mvm->bf_allowed_vif = NULL; 1602 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1603 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1604 } 1605 out_remove_mac: 1606 mvmvif->phy_ctxt = NULL; 1607 iwl_mvm_mac_ctxt_remove(mvm, vif); 1608 out_release: 1609 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1610 mvm->vif_count--; 1611 out_unlock: 1612 mutex_unlock(&mvm->mutex); 1613 1614 return ret; 1615 } 1616 1617 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1618 struct ieee80211_vif *vif) 1619 { 1620 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1621 /* 1622 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1623 * We assume here that all the packets sent to the OFFCHANNEL 1624 * queue are sent in ROC session. 1625 */ 1626 flush_work(&mvm->roc_done_wk); 1627 } 1628 } 1629 1630 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1631 struct ieee80211_vif *vif) 1632 { 1633 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1634 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1635 struct iwl_probe_resp_data *probe_data; 1636 1637 iwl_mvm_prepare_mac_removal(mvm, vif); 1638 1639 if (!(vif->type == NL80211_IFTYPE_AP || 1640 vif->type == NL80211_IFTYPE_ADHOC)) 1641 iwl_mvm_tcm_rm_vif(mvm, vif); 1642 1643 mutex_lock(&mvm->mutex); 1644 1645 if (vif == mvm->csme_vif) { 1646 iwl_mei_set_netdev(NULL); 1647 mvm->csme_vif = NULL; 1648 } 1649 1650 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, 1651 lockdep_is_held(&mvm->mutex)); 1652 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1653 if (probe_data) 1654 kfree_rcu(probe_data, rcu_head); 1655 1656 if (mvm->bf_allowed_vif == mvmvif) { 1657 mvm->bf_allowed_vif = NULL; 1658 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1659 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1660 } 1661 1662 if (vif->bss_conf.ftm_responder) 1663 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1664 1665 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1666 1667 /* 1668 * For AP/GO interface, the tear down of the resources allocated to the 1669 * interface is be handled as part of the stop_ap flow. 1670 */ 1671 if (vif->type == NL80211_IFTYPE_AP || 1672 vif->type == NL80211_IFTYPE_ADHOC) { 1673 #ifdef CONFIG_NL80211_TESTMODE 1674 if (vif == mvm->noa_vif) { 1675 mvm->noa_vif = NULL; 1676 mvm->noa_duration = 0; 1677 } 1678 #endif 1679 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1680 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1681 goto out_release; 1682 } 1683 1684 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1685 mvm->p2p_device_vif = NULL; 1686 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1687 iwl_mvm_binding_remove_vif(mvm, vif); 1688 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1689 mvmvif->phy_ctxt = NULL; 1690 } 1691 1692 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1693 mvm->vif_count--; 1694 1695 iwl_mvm_power_update_mac(mvm); 1696 iwl_mvm_mac_ctxt_remove(mvm, vif); 1697 1698 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1699 1700 if (vif->type == NL80211_IFTYPE_MONITOR) 1701 mvm->monitor_on = false; 1702 1703 out_release: 1704 mutex_unlock(&mvm->mutex); 1705 } 1706 1707 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1708 { 1709 return 0; 1710 } 1711 1712 struct iwl_mvm_mc_iter_data { 1713 struct iwl_mvm *mvm; 1714 int port_id; 1715 }; 1716 1717 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1718 struct ieee80211_vif *vif) 1719 { 1720 struct iwl_mvm_mc_iter_data *data = _data; 1721 struct iwl_mvm *mvm = data->mvm; 1722 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1723 struct iwl_host_cmd hcmd = { 1724 .id = MCAST_FILTER_CMD, 1725 .flags = CMD_ASYNC, 1726 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1727 }; 1728 int ret, len; 1729 1730 /* if we don't have free ports, mcast frames will be dropped */ 1731 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1732 return; 1733 1734 if (vif->type != NL80211_IFTYPE_STATION || 1735 !vif->bss_conf.assoc) 1736 return; 1737 1738 cmd->port_id = data->port_id++; 1739 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1740 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1741 1742 hcmd.len[0] = len; 1743 hcmd.data[0] = cmd; 1744 1745 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1746 if (ret) 1747 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1748 } 1749 1750 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1751 { 1752 struct iwl_mvm_mc_iter_data iter_data = { 1753 .mvm = mvm, 1754 }; 1755 int ret; 1756 1757 lockdep_assert_held(&mvm->mutex); 1758 1759 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1760 return; 1761 1762 ieee80211_iterate_active_interfaces_atomic( 1763 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1764 iwl_mvm_mc_iface_iterator, &iter_data); 1765 1766 /* 1767 * Send a (synchronous) ech command so that we wait for the 1768 * multiple asynchronous MCAST_FILTER_CMD commands sent by 1769 * the interface iterator. Otherwise, we might get here over 1770 * and over again (by userspace just sending a lot of these) 1771 * and the CPU can send them faster than the firmware can 1772 * process them. 1773 * Note that the CPU is still faster - but with this we'll 1774 * actually send fewer commands overall because the CPU will 1775 * not schedule the work in mac80211 as frequently if it's 1776 * still running when rescheduled (possibly multiple times). 1777 */ 1778 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL); 1779 if (ret) 1780 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n"); 1781 } 1782 1783 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1784 struct netdev_hw_addr_list *mc_list) 1785 { 1786 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1787 struct iwl_mcast_filter_cmd *cmd; 1788 struct netdev_hw_addr *addr; 1789 int addr_count; 1790 bool pass_all; 1791 int len; 1792 1793 addr_count = netdev_hw_addr_list_count(mc_list); 1794 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1795 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1796 if (pass_all) 1797 addr_count = 0; 1798 1799 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1800 cmd = kzalloc(len, GFP_ATOMIC); 1801 if (!cmd) 1802 return 0; 1803 1804 if (pass_all) { 1805 cmd->pass_all = 1; 1806 #if defined(__linux__) 1807 return (u64)(unsigned long)cmd; 1808 #elif defined(__FreeBSD__) 1809 return (u64)(uintptr_t)cmd; 1810 #endif 1811 } 1812 1813 netdev_hw_addr_list_for_each(addr, mc_list) { 1814 #if defined(__linux__) 1815 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1816 cmd->count, addr->addr); 1817 #elif defined(__FreeBSD__) 1818 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %6D\n", 1819 cmd->count, addr->addr, ":"); 1820 #endif 1821 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1822 addr->addr, ETH_ALEN); 1823 cmd->count++; 1824 } 1825 1826 #if defined(__linux__) 1827 return (u64)(unsigned long)cmd; 1828 #elif defined(__FreeBSD__) 1829 return (u64)(uintptr_t)cmd; 1830 #endif 1831 } 1832 1833 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1834 unsigned int changed_flags, 1835 unsigned int *total_flags, 1836 u64 multicast) 1837 { 1838 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1839 #if defined(__linux__) 1840 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1841 #elif defined(__FreeBSD__) 1842 struct iwl_mcast_filter_cmd *cmd = (void *)(uintptr_t)multicast; 1843 #endif 1844 1845 mutex_lock(&mvm->mutex); 1846 1847 /* replace previous configuration */ 1848 kfree(mvm->mcast_filter_cmd); 1849 mvm->mcast_filter_cmd = cmd; 1850 1851 if (!cmd) 1852 goto out; 1853 1854 if (changed_flags & FIF_ALLMULTI) 1855 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1856 1857 if (cmd->pass_all) 1858 cmd->count = 0; 1859 1860 iwl_mvm_recalc_multicast(mvm); 1861 out: 1862 mutex_unlock(&mvm->mutex); 1863 *total_flags = 0; 1864 } 1865 1866 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1867 struct ieee80211_vif *vif, 1868 unsigned int filter_flags, 1869 unsigned int changed_flags) 1870 { 1871 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1872 1873 /* We support only filter for probe requests */ 1874 if (!(changed_flags & FIF_PROBE_REQ)) 1875 return; 1876 1877 /* Supported only for p2p client interfaces */ 1878 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1879 !vif->p2p) 1880 return; 1881 1882 mutex_lock(&mvm->mutex); 1883 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1884 mutex_unlock(&mvm->mutex); 1885 } 1886 1887 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1888 struct iwl_bcast_iter_data { 1889 struct iwl_mvm *mvm; 1890 struct iwl_bcast_filter_cmd *cmd; 1891 u8 current_filter; 1892 }; 1893 1894 static void 1895 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1896 const struct iwl_fw_bcast_filter *in_filter, 1897 struct iwl_fw_bcast_filter *out_filter) 1898 { 1899 struct iwl_fw_bcast_filter_attr *attr; 1900 int i; 1901 1902 memcpy(out_filter, in_filter, sizeof(*out_filter)); 1903 1904 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1905 attr = &out_filter->attrs[i]; 1906 1907 if (!attr->mask) 1908 break; 1909 1910 switch (attr->reserved1) { 1911 case cpu_to_le16(BC_FILTER_MAGIC_IP): 1912 if (vif->bss_conf.arp_addr_cnt != 1) { 1913 attr->mask = 0; 1914 continue; 1915 } 1916 1917 attr->val = vif->bss_conf.arp_addr_list[0]; 1918 break; 1919 case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1920 attr->val = *(__be32 *)&vif->addr[2]; 1921 break; 1922 default: 1923 break; 1924 } 1925 attr->reserved1 = 0; 1926 out_filter->num_attrs++; 1927 } 1928 } 1929 1930 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1931 struct ieee80211_vif *vif) 1932 { 1933 struct iwl_bcast_iter_data *data = _data; 1934 struct iwl_mvm *mvm = data->mvm; 1935 struct iwl_bcast_filter_cmd *cmd = data->cmd; 1936 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1937 struct iwl_fw_bcast_mac *bcast_mac; 1938 int i; 1939 1940 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1941 return; 1942 1943 bcast_mac = &cmd->macs[mvmvif->id]; 1944 1945 /* 1946 * enable filtering only for associated stations, but not for P2P 1947 * Clients 1948 */ 1949 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1950 !vif->bss_conf.assoc) 1951 return; 1952 1953 bcast_mac->default_discard = 1; 1954 1955 /* copy all configured filters */ 1956 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1957 /* 1958 * Make sure we don't exceed our filters limit. 1959 * if there is still a valid filter to be configured, 1960 * be on the safe side and just allow bcast for this mac. 1961 */ 1962 if (WARN_ON_ONCE(data->current_filter >= 1963 ARRAY_SIZE(cmd->filters))) { 1964 bcast_mac->default_discard = 0; 1965 bcast_mac->attached_filters = 0; 1966 break; 1967 } 1968 1969 iwl_mvm_set_bcast_filter(vif, 1970 &mvm->bcast_filters[i], 1971 &cmd->filters[data->current_filter]); 1972 1973 /* skip current filter if it contains no attributes */ 1974 if (!cmd->filters[data->current_filter].num_attrs) 1975 continue; 1976 1977 /* attach the filter to current mac */ 1978 bcast_mac->attached_filters |= 1979 cpu_to_le16(BIT(data->current_filter)); 1980 1981 data->current_filter++; 1982 } 1983 } 1984 1985 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1986 struct iwl_bcast_filter_cmd *cmd) 1987 { 1988 struct iwl_bcast_iter_data iter_data = { 1989 .mvm = mvm, 1990 .cmd = cmd, 1991 }; 1992 1993 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1994 return false; 1995 1996 memset(cmd, 0, sizeof(*cmd)); 1997 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1998 cmd->max_macs = ARRAY_SIZE(cmd->macs); 1999 2000 #ifdef CONFIG_IWLWIFI_DEBUGFS 2001 /* use debugfs filters/macs if override is configured */ 2002 if (mvm->dbgfs_bcast_filtering.override) { 2003 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 2004 sizeof(cmd->filters)); 2005 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 2006 sizeof(cmd->macs)); 2007 return true; 2008 } 2009 #endif 2010 2011 /* if no filters are configured, do nothing */ 2012 if (!mvm->bcast_filters) 2013 return false; 2014 2015 /* configure and attach these filters for each associated sta vif */ 2016 ieee80211_iterate_active_interfaces( 2017 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2018 iwl_mvm_bcast_filter_iterator, &iter_data); 2019 2020 return true; 2021 } 2022 2023 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 2024 { 2025 struct iwl_bcast_filter_cmd cmd; 2026 2027 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 2028 return 0; 2029 2030 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 2031 return 0; 2032 2033 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 2034 sizeof(cmd), &cmd); 2035 } 2036 #else 2037 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 2038 { 2039 return 0; 2040 } 2041 #endif 2042 2043 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 2044 struct ieee80211_vif *vif) 2045 { 2046 struct iwl_mu_group_mgmt_cmd cmd = {}; 2047 2048 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 2049 WLAN_MEMBERSHIP_LEN); 2050 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 2051 WLAN_USER_POSITION_LEN); 2052 2053 return iwl_mvm_send_cmd_pdu(mvm, 2054 WIDE_ID(DATA_PATH_GROUP, 2055 UPDATE_MU_GROUPS_CMD), 2056 0, sizeof(cmd), &cmd); 2057 } 2058 2059 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 2060 struct ieee80211_vif *vif) 2061 { 2062 if (vif->mu_mimo_owner) { 2063 struct iwl_mu_group_mgmt_notif *notif = _data; 2064 2065 /* 2066 * MU-MIMO Group Id action frame is little endian. We treat 2067 * the data received from firmware as if it came from the 2068 * action frame, so no conversion is needed. 2069 */ 2070 ieee80211_update_mu_groups(vif, 2071 (u8 *)¬if->membership_status, 2072 (u8 *)¬if->user_position); 2073 } 2074 } 2075 2076 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 2077 struct iwl_rx_cmd_buffer *rxb) 2078 { 2079 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2080 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 2081 2082 ieee80211_iterate_active_interfaces_atomic( 2083 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 2084 iwl_mvm_mu_mimo_iface_iterator, notif); 2085 } 2086 2087 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 2088 { 2089 u8 byte_num = ppe_pos_bit / 8; 2090 u8 bit_num = ppe_pos_bit % 8; 2091 u8 residue_bits; 2092 u8 res; 2093 2094 if (bit_num <= 5) 2095 return (ppe[byte_num] >> bit_num) & 2096 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2097 2098 /* 2099 * If bit_num > 5, we have to combine bits with next byte. 2100 * Calculate how many bits we need to take from current byte (called 2101 * here "residue_bits"), and add them to bits from next byte. 2102 */ 2103 2104 residue_bits = 8 - bit_num; 2105 2106 res = (ppe[byte_num + 1] & 2107 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2108 residue_bits; 2109 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2110 2111 return res; 2112 } 2113 2114 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm, 2115 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss, 2116 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit) 2117 { 2118 int i; 2119 2120 /* 2121 * FW currently supports only nss == MAX_HE_SUPP_NSS 2122 * 2123 * If nss > MAX: we can ignore values we don't support 2124 * If nss < MAX: we can set zeros in other streams 2125 */ 2126 if (nss > MAX_HE_SUPP_NSS) { 2127 IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2128 MAX_HE_SUPP_NSS); 2129 nss = MAX_HE_SUPP_NSS; 2130 } 2131 2132 for (i = 0; i < nss; i++) { 2133 u8 ru_index_tmp = ru_index_bitmap << 1; 2134 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE; 2135 u8 bw; 2136 2137 for (bw = 0; 2138 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2139 bw++) { 2140 ru_index_tmp >>= 1; 2141 2142 if (!(ru_index_tmp & 1)) 2143 continue; 2144 2145 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2146 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2147 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit); 2148 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2149 2150 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2151 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2152 } 2153 } 2154 } 2155 2156 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm, 2157 struct ieee80211_sta *sta, 2158 struct iwl_he_pkt_ext_v2 *pkt_ext) 2159 { 2160 u8 nss = (sta->he_cap.ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) + 1; 2161 u8 *ppe = &sta->he_cap.ppe_thres[0]; 2162 u8 ru_index_bitmap = 2163 u8_get_bits(*ppe, 2164 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); 2165 /* Starting after PPE header */ 2166 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE; 2167 2168 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit); 2169 } 2170 2171 static void iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext, 2172 u8 nominal_padding, 2173 u32 *flags) 2174 { 2175 int low_th = -1; 2176 int high_th = -1; 2177 int i; 2178 2179 switch (nominal_padding) { 2180 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US: 2181 low_th = IWL_HE_PKT_EXT_NONE; 2182 high_th = IWL_HE_PKT_EXT_NONE; 2183 break; 2184 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US: 2185 low_th = IWL_HE_PKT_EXT_BPSK; 2186 high_th = IWL_HE_PKT_EXT_NONE; 2187 break; 2188 case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US: 2189 low_th = IWL_HE_PKT_EXT_NONE; 2190 high_th = IWL_HE_PKT_EXT_BPSK; 2191 break; 2192 } 2193 2194 /* Set the PPE thresholds accordingly */ 2195 if (low_th >= 0 && high_th >= 0) { 2196 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2197 u8 bw; 2198 2199 for (bw = 0; 2200 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]); 2201 bw++) { 2202 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th; 2203 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th; 2204 } 2205 } 2206 2207 *flags |= STA_CTXT_HE_PACKET_EXT; 2208 } 2209 } 2210 2211 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2212 struct ieee80211_vif *vif, u8 sta_id) 2213 { 2214 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2215 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = { 2216 .sta_id = sta_id, 2217 .tid_limit = IWL_MAX_TID_COUNT, 2218 .bss_color = vif->bss_conf.he_bss_color.color, 2219 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2220 .frame_time_rts_th = 2221 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2222 }; 2223 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {}; 2224 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD); 2225 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2); 2226 int size; 2227 struct ieee80211_sta *sta; 2228 u32 flags; 2229 int i; 2230 const struct ieee80211_sta_he_cap *own_he_cap = NULL; 2231 struct ieee80211_chanctx_conf *chanctx_conf; 2232 const struct ieee80211_supported_band *sband; 2233 void *cmd; 2234 2235 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE)) 2236 ver = 1; 2237 2238 switch (ver) { 2239 case 1: 2240 /* same layout as v2 except some data at the end */ 2241 cmd = &sta_ctxt_cmd_v2; 2242 size = sizeof(struct iwl_he_sta_context_cmd_v1); 2243 break; 2244 case 2: 2245 cmd = &sta_ctxt_cmd_v2; 2246 size = sizeof(struct iwl_he_sta_context_cmd_v2); 2247 break; 2248 case 3: 2249 cmd = &sta_ctxt_cmd; 2250 size = sizeof(struct iwl_he_sta_context_cmd_v3); 2251 break; 2252 default: 2253 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver); 2254 return; 2255 } 2256 2257 rcu_read_lock(); 2258 2259 chanctx_conf = rcu_dereference(vif->chanctx_conf); 2260 if (WARN_ON(!chanctx_conf)) { 2261 rcu_read_unlock(); 2262 return; 2263 } 2264 2265 sband = mvm->hw->wiphy->bands[chanctx_conf->def.chan->band]; 2266 own_he_cap = ieee80211_get_he_iftype_cap(sband, 2267 ieee80211_vif_type_p2p(vif)); 2268 2269 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2270 if (IS_ERR_OR_NULL(sta)) { 2271 rcu_read_unlock(); 2272 WARN(1, "Can't find STA to configure HE\n"); 2273 return; 2274 } 2275 2276 if (!sta->he_cap.has_he) { 2277 rcu_read_unlock(); 2278 return; 2279 } 2280 2281 flags = 0; 2282 2283 /* Block 26-tone RU OFDMA transmissions */ 2284 if (mvmvif->he_ru_2mhz_block) 2285 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2286 2287 /* HTC flags */ 2288 if (sta->he_cap.he_cap_elem.mac_cap_info[0] & 2289 IEEE80211_HE_MAC_CAP0_HTC_HE) 2290 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2291 if ((sta->he_cap.he_cap_elem.mac_cap_info[1] & 2292 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2293 (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2294 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2295 u8 link_adap = 2296 ((sta->he_cap.he_cap_elem.mac_cap_info[2] & 2297 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2298 (sta->he_cap.he_cap_elem.mac_cap_info[1] & 2299 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2300 2301 if (link_adap == 2) 2302 sta_ctxt_cmd.htc_flags |= 2303 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2304 else if (link_adap == 3) 2305 sta_ctxt_cmd.htc_flags |= 2306 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2307 } 2308 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2309 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2310 if (sta->he_cap.he_cap_elem.mac_cap_info[3] & 2311 IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2312 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2313 if (sta->he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2314 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2315 2316 /* 2317 * Initialize the PPE thresholds to "None" (7), as described in Table 2318 * 9-262ac of 80211.ax/D3.0. 2319 */ 2320 memset(&sta_ctxt_cmd.pkt_ext, IWL_HE_PKT_EXT_NONE, 2321 sizeof(sta_ctxt_cmd.pkt_ext)); 2322 2323 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2324 if (sta->he_cap.he_cap_elem.phy_cap_info[6] & 2325 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2326 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, sta, 2327 &sta_ctxt_cmd.pkt_ext); 2328 flags |= STA_CTXT_HE_PACKET_EXT; 2329 /* PPE Thresholds doesn't exist - set the API PPE values 2330 * according to Common Nominal Packet Padding fiels. */ 2331 } else { 2332 u8 nominal_padding = 2333 u8_get_bits(sta->he_cap.he_cap_elem.phy_cap_info[9], 2334 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK); 2335 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED) 2336 iwl_mvm_set_pkt_ext_from_nominal_padding(&sta_ctxt_cmd.pkt_ext, 2337 nominal_padding, 2338 &flags); 2339 } 2340 2341 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2342 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP) 2343 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2344 2345 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2346 IEEE80211_HE_MAC_CAP2_ACK_EN) 2347 flags |= STA_CTXT_HE_ACK_ENABLED; 2348 2349 rcu_read_unlock(); 2350 2351 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2352 flags |= STA_CTXT_HE_MU_EDCA_CW; 2353 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2354 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2355 &mvmvif->queue_params[i].mu_edca_param_rec; 2356 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2357 2358 if (!mvmvif->queue_params[i].mu_edca) { 2359 flags &= ~STA_CTXT_HE_MU_EDCA_CW; 2360 break; 2361 } 2362 2363 sta_ctxt_cmd.trig_based_txf[ac].cwmin = 2364 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2365 sta_ctxt_cmd.trig_based_txf[ac].cwmax = 2366 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2367 sta_ctxt_cmd.trig_based_txf[ac].aifsn = 2368 cpu_to_le16(mu_edca->aifsn); 2369 sta_ctxt_cmd.trig_based_txf[ac].mu_time = 2370 cpu_to_le16(mu_edca->mu_edca_timer); 2371 } 2372 2373 2374 if (vif->bss_conf.uora_exists) { 2375 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2376 2377 sta_ctxt_cmd.rand_alloc_ecwmin = 2378 vif->bss_conf.uora_ocw_range & 0x7; 2379 sta_ctxt_cmd.rand_alloc_ecwmax = 2380 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2381 } 2382 2383 if (own_he_cap && !(own_he_cap->he_cap_elem.mac_cap_info[2] & 2384 IEEE80211_HE_MAC_CAP2_ACK_EN)) 2385 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED; 2386 2387 if (vif->bss_conf.nontransmitted) { 2388 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2389 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2390 vif->bss_conf.transmitter_bssid); 2391 sta_ctxt_cmd.max_bssid_indicator = 2392 vif->bss_conf.bssid_indicator; 2393 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2394 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2395 sta_ctxt_cmd.profile_periodicity = 2396 vif->bss_conf.profile_periodicity; 2397 } 2398 2399 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2400 2401 if (ver < 3) { 2402 /* fields before pkt_ext */ 2403 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) != 2404 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2405 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd, 2406 offsetof(typeof(sta_ctxt_cmd), pkt_ext)); 2407 2408 /* pkt_ext */ 2409 for (i = 0; 2410 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th); 2411 i++) { 2412 u8 bw; 2413 2414 for (bw = 0; 2415 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]); 2416 bw++) { 2417 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) != 2418 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw])); 2419 2420 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw], 2421 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw], 2422 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw])); 2423 } 2424 } 2425 2426 /* fields after pkt_ext */ 2427 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) - 2428 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) != 2429 sizeof(sta_ctxt_cmd_v2) - 2430 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext)); 2431 memcpy((u8 *)&sta_ctxt_cmd_v2 + 2432 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext), 2433 (u8 *)&sta_ctxt_cmd + 2434 offsetofend(typeof(sta_ctxt_cmd), pkt_ext), 2435 sizeof(sta_ctxt_cmd) - 2436 offsetofend(typeof(sta_ctxt_cmd), pkt_ext)); 2437 sta_ctxt_cmd_v2.reserved3 = 0; 2438 } 2439 2440 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd)) 2441 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2442 } 2443 2444 static void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, 2445 struct ieee80211_vif *vif, 2446 u32 duration_override) 2447 { 2448 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 2449 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 2450 2451 if (duration_override > duration) 2452 duration = duration_override; 2453 2454 /* Try really hard to protect the session and hear a beacon 2455 * The new session protection command allows us to protect the 2456 * session for a much longer time since the firmware will internally 2457 * create two events: a 300TU one with a very high priority that 2458 * won't be fragmented which should be enough for 99% of the cases, 2459 * and another one (which we configure here to be 900TU long) which 2460 * will have a slightly lower priority, but more importantly, can be 2461 * fragmented so that it'll allow other activities to run. 2462 */ 2463 if (fw_has_capa(&mvm->fw->ucode_capa, 2464 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2465 iwl_mvm_schedule_session_protection(mvm, vif, 900, 2466 min_duration, false); 2467 else 2468 iwl_mvm_protect_session(mvm, vif, duration, 2469 min_duration, 500, false); 2470 } 2471 2472 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2473 struct ieee80211_vif *vif, 2474 struct ieee80211_bss_conf *bss_conf, 2475 u32 changes) 2476 { 2477 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2478 int ret; 2479 2480 /* 2481 * Re-calculate the tsf id, as the leader-follower relations depend 2482 * on the beacon interval, which was not known when the station 2483 * interface was added. 2484 */ 2485 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) { 2486 if (vif->bss_conf.he_support && 2487 !iwlwifi_mod_params.disable_11ax) 2488 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2489 2490 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2491 } 2492 2493 /* Update MU EDCA params */ 2494 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2495 bss_conf->assoc && vif->bss_conf.he_support && 2496 !iwlwifi_mod_params.disable_11ax) 2497 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2498 2499 /* 2500 * If we're not associated yet, take the (new) BSSID before associating 2501 * so the firmware knows. If we're already associated, then use the old 2502 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2503 * branch for disassociation below. 2504 */ 2505 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2506 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2507 2508 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 2509 if (ret) 2510 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2511 2512 /* after sending it once, adopt mac80211 data */ 2513 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2514 mvmvif->associated = bss_conf->assoc; 2515 2516 if (changes & BSS_CHANGED_ASSOC) { 2517 if (bss_conf->assoc) { 2518 /* clear statistics to get clean beacon counter */ 2519 iwl_mvm_request_statistics(mvm, true); 2520 memset(&mvmvif->beacon_stats, 0, 2521 sizeof(mvmvif->beacon_stats)); 2522 2523 /* add quota for this interface */ 2524 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2525 if (ret) { 2526 IWL_ERR(mvm, "failed to update quotas\n"); 2527 return; 2528 } 2529 2530 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2531 &mvm->status) && 2532 !fw_has_capa(&mvm->fw->ucode_capa, 2533 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2534 /* 2535 * If we're restarting then the firmware will 2536 * obviously have lost synchronisation with 2537 * the AP. It will attempt to synchronise by 2538 * itself, but we can make it more reliable by 2539 * scheduling a session protection time event. 2540 * 2541 * The firmware needs to receive a beacon to 2542 * catch up with synchronisation, use 110% of 2543 * the beacon interval. 2544 * 2545 * Set a large maximum delay to allow for more 2546 * than a single interface. 2547 * 2548 * For new firmware versions, rely on the 2549 * firmware. This is relevant for DCM scenarios 2550 * only anyway. 2551 */ 2552 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2553 iwl_mvm_protect_session(mvm, vif, dur, dur, 2554 5 * dur, false); 2555 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2556 &mvm->status) && 2557 !vif->bss_conf.dtim_period) { 2558 /* 2559 * If we're not restarting and still haven't 2560 * heard a beacon (dtim period unknown) then 2561 * make sure we still have enough minimum time 2562 * remaining in the time event, since the auth 2563 * might actually have taken quite a while 2564 * (especially for SAE) and so the remaining 2565 * time could be small without us having heard 2566 * a beacon yet. 2567 */ 2568 iwl_mvm_protect_assoc(mvm, vif, 0); 2569 } 2570 2571 iwl_mvm_sf_update(mvm, vif, false); 2572 iwl_mvm_power_vif_assoc(mvm, vif); 2573 if (vif->p2p) { 2574 iwl_mvm_update_smps(mvm, vif, 2575 IWL_MVM_SMPS_REQ_PROT, 2576 IEEE80211_SMPS_DYNAMIC); 2577 } 2578 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 2579 iwl_mvm_mei_host_disassociated(mvm); 2580 /* 2581 * If update fails - SF might be running in associated 2582 * mode while disassociated - which is forbidden. 2583 */ 2584 ret = iwl_mvm_sf_update(mvm, vif, false); 2585 WARN_ONCE(ret && 2586 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2587 &mvm->status), 2588 "Failed to update SF upon disassociation\n"); 2589 2590 /* 2591 * If we get an assert during the connection (after the 2592 * station has been added, but before the vif is set 2593 * to associated), mac80211 will re-add the station and 2594 * then configure the vif. Since the vif is not 2595 * associated, we would remove the station here and 2596 * this would fail the recovery. 2597 */ 2598 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2599 &mvm->status)) { 2600 /* 2601 * Remove AP station now that 2602 * the MAC is unassoc 2603 */ 2604 ret = iwl_mvm_rm_sta_id(mvm, vif, 2605 mvmvif->ap_sta_id); 2606 if (ret) 2607 IWL_ERR(mvm, 2608 "failed to remove AP station\n"); 2609 2610 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 2611 } 2612 2613 /* remove quota for this interface */ 2614 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2615 if (ret) 2616 IWL_ERR(mvm, "failed to update quotas\n"); 2617 2618 /* this will take the cleared BSSID from bss_conf */ 2619 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2620 if (ret) 2621 IWL_ERR(mvm, 2622 "failed to update MAC %pM (clear after unassoc)\n", 2623 vif->addr); 2624 } 2625 2626 /* 2627 * The firmware tracks the MU-MIMO group on its own. 2628 * However, on HW restart we should restore this data. 2629 */ 2630 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2631 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { 2632 ret = iwl_mvm_update_mu_groups(mvm, vif); 2633 if (ret) 2634 IWL_ERR(mvm, 2635 "failed to update VHT MU_MIMO groups\n"); 2636 } 2637 2638 iwl_mvm_recalc_multicast(mvm); 2639 iwl_mvm_configure_bcast_filter(mvm); 2640 2641 /* reset rssi values */ 2642 mvmvif->bf_data.ave_beacon_signal = 0; 2643 2644 iwl_mvm_bt_coex_vif_change(mvm); 2645 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2646 IEEE80211_SMPS_AUTOMATIC); 2647 if (fw_has_capa(&mvm->fw->ucode_capa, 2648 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2649 iwl_mvm_config_scan(mvm); 2650 } 2651 2652 if (changes & BSS_CHANGED_BEACON_INFO) { 2653 /* 2654 * We received a beacon from the associated AP so 2655 * remove the session protection. 2656 */ 2657 iwl_mvm_stop_session_protection(mvm, vif); 2658 2659 iwl_mvm_sf_update(mvm, vif, false); 2660 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2661 } 2662 2663 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2664 /* 2665 * Send power command on every beacon change, 2666 * because we may have not enabled beacon abort yet. 2667 */ 2668 BSS_CHANGED_BEACON_INFO)) { 2669 ret = iwl_mvm_power_update_mac(mvm); 2670 if (ret) 2671 IWL_ERR(mvm, "failed to update power mode\n"); 2672 } 2673 2674 if (changes & BSS_CHANGED_CQM) { 2675 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2676 /* reset cqm events tracking */ 2677 mvmvif->bf_data.last_cqm_event = 0; 2678 if (mvmvif->bf_data.bf_enabled) { 2679 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2680 if (ret) 2681 IWL_ERR(mvm, 2682 "failed to update CQM thresholds\n"); 2683 } 2684 } 2685 2686 if (changes & BSS_CHANGED_ARP_FILTER) { 2687 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 2688 iwl_mvm_configure_bcast_filter(mvm); 2689 } 2690 2691 if (changes & BSS_CHANGED_BANDWIDTH) 2692 iwl_mvm_apply_fw_smps_request(vif); 2693 } 2694 2695 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2696 struct ieee80211_vif *vif) 2697 { 2698 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2699 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2700 int ret, i; 2701 2702 mutex_lock(&mvm->mutex); 2703 2704 /* Send the beacon template */ 2705 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2706 if (ret) 2707 goto out_unlock; 2708 2709 /* 2710 * Re-calculate the tsf id, as the leader-follower relations depend on 2711 * the beacon interval, which was not known when the AP interface 2712 * was added. 2713 */ 2714 if (vif->type == NL80211_IFTYPE_AP) 2715 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2716 2717 mvmvif->ap_assoc_sta_count = 0; 2718 2719 /* Add the mac context */ 2720 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2721 if (ret) 2722 goto out_unlock; 2723 2724 /* Perform the binding */ 2725 ret = iwl_mvm_binding_add_vif(mvm, vif); 2726 if (ret) 2727 goto out_remove; 2728 2729 /* 2730 * This is not very nice, but the simplest: 2731 * For older FWs adding the mcast sta before the bcast station may 2732 * cause assert 0x2b00. 2733 * This is fixed in later FW so make the order of removal depend on 2734 * the TLV 2735 */ 2736 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2737 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2738 if (ret) 2739 goto out_unbind; 2740 /* 2741 * Send the bcast station. At this stage the TBTT and DTIM time 2742 * events are added and applied to the scheduler 2743 */ 2744 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2745 if (ret) { 2746 iwl_mvm_rm_mcast_sta(mvm, vif); 2747 goto out_unbind; 2748 } 2749 } else { 2750 /* 2751 * Send the bcast station. At this stage the TBTT and DTIM time 2752 * events are added and applied to the scheduler 2753 */ 2754 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2755 if (ret) 2756 goto out_unbind; 2757 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2758 if (ret) { 2759 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2760 goto out_unbind; 2761 } 2762 } 2763 2764 /* must be set before quota calculations */ 2765 mvmvif->ap_ibss_active = true; 2766 2767 /* send all the early keys to the device now */ 2768 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2769 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2770 2771 if (!key) 2772 continue; 2773 2774 mvmvif->ap_early_keys[i] = NULL; 2775 2776 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2777 if (ret) 2778 goto out_quota_failed; 2779 } 2780 2781 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2782 iwl_mvm_vif_set_low_latency(mvmvif, true, 2783 LOW_LATENCY_VIF_TYPE); 2784 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2785 } 2786 2787 /* power updated needs to be done before quotas */ 2788 iwl_mvm_power_update_mac(mvm); 2789 2790 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2791 if (ret) 2792 goto out_quota_failed; 2793 2794 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2795 if (vif->p2p && mvm->p2p_device_vif) 2796 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2797 2798 iwl_mvm_bt_coex_vif_change(mvm); 2799 2800 /* we don't support TDLS during DCM */ 2801 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2802 iwl_mvm_teardown_tdls_peers(mvm); 2803 2804 iwl_mvm_ftm_restart_responder(mvm, vif); 2805 2806 goto out_unlock; 2807 2808 out_quota_failed: 2809 iwl_mvm_power_update_mac(mvm); 2810 mvmvif->ap_ibss_active = false; 2811 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2812 iwl_mvm_rm_mcast_sta(mvm, vif); 2813 out_unbind: 2814 iwl_mvm_binding_remove_vif(mvm, vif); 2815 out_remove: 2816 iwl_mvm_mac_ctxt_remove(mvm, vif); 2817 out_unlock: 2818 mutex_unlock(&mvm->mutex); 2819 return ret; 2820 } 2821 2822 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2823 struct ieee80211_vif *vif) 2824 { 2825 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2826 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2827 2828 iwl_mvm_prepare_mac_removal(mvm, vif); 2829 2830 mutex_lock(&mvm->mutex); 2831 2832 /* Handle AP stop while in CSA */ 2833 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2834 iwl_mvm_remove_time_event(mvm, mvmvif, 2835 &mvmvif->time_event_data); 2836 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2837 mvmvif->csa_countdown = false; 2838 } 2839 2840 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2841 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2842 mvm->csa_tx_block_bcn_timeout = 0; 2843 } 2844 2845 mvmvif->ap_ibss_active = false; 2846 mvm->ap_last_beacon_gp2 = 0; 2847 2848 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2849 iwl_mvm_vif_set_low_latency(mvmvif, false, 2850 LOW_LATENCY_VIF_TYPE); 2851 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2852 } 2853 2854 iwl_mvm_bt_coex_vif_change(mvm); 2855 2856 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2857 if (vif->p2p && mvm->p2p_device_vif) 2858 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2859 2860 iwl_mvm_update_quotas(mvm, false, NULL); 2861 2862 iwl_mvm_ftm_responder_clear(mvm, vif); 2863 2864 /* 2865 * This is not very nice, but the simplest: 2866 * For older FWs removing the mcast sta before the bcast station may 2867 * cause assert 0x2b00. 2868 * This is fixed in later FW (which will stop beaconing when removing 2869 * bcast station). 2870 * So make the order of removal depend on the TLV 2871 */ 2872 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2873 iwl_mvm_rm_mcast_sta(mvm, vif); 2874 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2875 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2876 iwl_mvm_rm_mcast_sta(mvm, vif); 2877 iwl_mvm_binding_remove_vif(mvm, vif); 2878 2879 iwl_mvm_power_update_mac(mvm); 2880 2881 iwl_mvm_mac_ctxt_remove(mvm, vif); 2882 2883 mutex_unlock(&mvm->mutex); 2884 } 2885 2886 static void 2887 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2888 struct ieee80211_vif *vif, 2889 struct ieee80211_bss_conf *bss_conf, 2890 u32 changes) 2891 { 2892 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2893 2894 /* Changes will be applied when the AP/IBSS is started */ 2895 if (!mvmvif->ap_ibss_active) 2896 return; 2897 2898 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2899 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2900 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2901 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2902 2903 /* Need to send a new beacon template to the FW */ 2904 if (changes & BSS_CHANGED_BEACON && 2905 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2906 IWL_WARN(mvm, "Failed updating beacon data\n"); 2907 2908 if (changes & BSS_CHANGED_FTM_RESPONDER) { 2909 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 2910 2911 if (ret) 2912 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 2913 ret); 2914 } 2915 2916 } 2917 2918 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2919 struct ieee80211_vif *vif, 2920 struct ieee80211_bss_conf *bss_conf, 2921 u32 changes) 2922 { 2923 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2924 2925 mutex_lock(&mvm->mutex); 2926 2927 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2928 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2929 2930 switch (vif->type) { 2931 case NL80211_IFTYPE_STATION: 2932 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2933 break; 2934 case NL80211_IFTYPE_AP: 2935 case NL80211_IFTYPE_ADHOC: 2936 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2937 break; 2938 case NL80211_IFTYPE_MONITOR: 2939 if (changes & BSS_CHANGED_MU_GROUPS) 2940 iwl_mvm_update_mu_groups(mvm, vif); 2941 break; 2942 default: 2943 /* shouldn't happen */ 2944 WARN_ON_ONCE(1); 2945 } 2946 2947 if (changes & BSS_CHANGED_TXPOWER) { 2948 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n", 2949 bss_conf->txpower); 2950 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2951 } 2952 2953 mutex_unlock(&mvm->mutex); 2954 } 2955 2956 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2957 struct ieee80211_vif *vif, 2958 struct ieee80211_scan_request *hw_req) 2959 { 2960 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2961 int ret; 2962 2963 if (hw_req->req.n_channels == 0 || 2964 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2965 return -EINVAL; 2966 2967 mutex_lock(&mvm->mutex); 2968 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2969 mutex_unlock(&mvm->mutex); 2970 2971 return ret; 2972 } 2973 2974 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2975 struct ieee80211_vif *vif) 2976 { 2977 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2978 2979 mutex_lock(&mvm->mutex); 2980 2981 /* Due to a race condition, it's possible that mac80211 asks 2982 * us to stop a hw_scan when it's already stopped. This can 2983 * happen, for instance, if we stopped the scan ourselves, 2984 * called ieee80211_scan_completed() and the userspace called 2985 * cancel scan scan before ieee80211_scan_work() could run. 2986 * To handle that, simply return if the scan is not running. 2987 */ 2988 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2989 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2990 2991 mutex_unlock(&mvm->mutex); 2992 } 2993 2994 static void 2995 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2996 struct ieee80211_sta *sta, u16 tids, 2997 int num_frames, 2998 enum ieee80211_frame_release_type reason, 2999 bool more_data) 3000 { 3001 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3002 3003 /* Called when we need to transmit (a) frame(s) from mac80211 */ 3004 3005 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3006 tids, more_data, false); 3007 } 3008 3009 static void 3010 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 3011 struct ieee80211_sta *sta, u16 tids, 3012 int num_frames, 3013 enum ieee80211_frame_release_type reason, 3014 bool more_data) 3015 { 3016 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3017 3018 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 3019 3020 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 3021 tids, more_data, true); 3022 } 3023 3024 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3025 enum sta_notify_cmd cmd, 3026 struct ieee80211_sta *sta) 3027 { 3028 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3029 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 3030 unsigned long txqs = 0, tids = 0; 3031 int tid; 3032 3033 /* 3034 * If we have TVQM then we get too high queue numbers - luckily 3035 * we really shouldn't get here with that because such hardware 3036 * should have firmware supporting buffer station offload. 3037 */ 3038 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 3039 return; 3040 3041 spin_lock_bh(&mvmsta->lock); 3042 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 3043 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 3044 3045 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 3046 continue; 3047 3048 __set_bit(tid_data->txq_id, &txqs); 3049 3050 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 3051 continue; 3052 3053 __set_bit(tid, &tids); 3054 } 3055 3056 switch (cmd) { 3057 case STA_NOTIFY_SLEEP: 3058 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 3059 ieee80211_sta_set_buffered(sta, tid, true); 3060 3061 if (txqs) 3062 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 3063 /* 3064 * The fw updates the STA to be asleep. Tx packets on the Tx 3065 * queues to this station will not be transmitted. The fw will 3066 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 3067 */ 3068 break; 3069 case STA_NOTIFY_AWAKE: 3070 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 3071 break; 3072 3073 if (txqs) 3074 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 3075 iwl_mvm_sta_modify_ps_wake(mvm, sta); 3076 break; 3077 default: 3078 break; 3079 } 3080 spin_unlock_bh(&mvmsta->lock); 3081 } 3082 3083 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 3084 struct ieee80211_vif *vif, 3085 enum sta_notify_cmd cmd, 3086 struct ieee80211_sta *sta) 3087 { 3088 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 3089 } 3090 3091 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 3092 { 3093 struct iwl_rx_packet *pkt = rxb_addr(rxb); 3094 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 3095 struct ieee80211_sta *sta; 3096 struct iwl_mvm_sta *mvmsta; 3097 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 3098 3099 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations)) 3100 return; 3101 3102 rcu_read_lock(); 3103 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 3104 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 3105 rcu_read_unlock(); 3106 return; 3107 } 3108 3109 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3110 3111 if (!mvmsta->vif || 3112 mvmsta->vif->type != NL80211_IFTYPE_AP) { 3113 rcu_read_unlock(); 3114 return; 3115 } 3116 3117 if (mvmsta->sleeping != sleeping) { 3118 mvmsta->sleeping = sleeping; 3119 __iwl_mvm_mac_sta_notify(mvm->hw, 3120 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 3121 sta); 3122 ieee80211_sta_ps_transition(sta, sleeping); 3123 } 3124 3125 if (sleeping) { 3126 switch (notif->type) { 3127 case IWL_MVM_PM_EVENT_AWAKE: 3128 case IWL_MVM_PM_EVENT_ASLEEP: 3129 break; 3130 case IWL_MVM_PM_EVENT_UAPSD: 3131 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 3132 break; 3133 case IWL_MVM_PM_EVENT_PS_POLL: 3134 ieee80211_sta_pspoll(sta); 3135 break; 3136 default: 3137 break; 3138 } 3139 } 3140 3141 rcu_read_unlock(); 3142 } 3143 3144 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 3145 struct ieee80211_vif *vif, 3146 struct ieee80211_sta *sta) 3147 { 3148 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3149 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3150 3151 /* 3152 * This is called before mac80211 does RCU synchronisation, 3153 * so here we already invalidate our internal RCU-protected 3154 * station pointer. The rest of the code will thus no longer 3155 * be able to find the station this way, and we don't rely 3156 * on further RCU synchronisation after the sta_state() 3157 * callback deleted the station. 3158 */ 3159 mutex_lock(&mvm->mutex); 3160 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 3161 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 3162 ERR_PTR(-ENOENT)); 3163 3164 mutex_unlock(&mvm->mutex); 3165 } 3166 3167 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 3168 const u8 *bssid) 3169 { 3170 int i; 3171 3172 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 3173 struct iwl_mvm_tcm_mac *mdata; 3174 3175 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 3176 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 3177 mdata->opened_rx_ba_sessions = false; 3178 } 3179 3180 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 3181 return; 3182 3183 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 3184 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3185 return; 3186 } 3187 3188 if (!vif->p2p && 3189 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 3190 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3191 return; 3192 } 3193 3194 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 3195 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 3196 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 3197 return; 3198 } 3199 } 3200 3201 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 3202 } 3203 3204 static void 3205 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 3206 struct ieee80211_vif *vif, u8 *peer_addr, 3207 enum nl80211_tdls_operation action) 3208 { 3209 struct iwl_fw_dbg_trigger_tlv *trig; 3210 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 3211 3212 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 3213 FW_DBG_TRIGGER_TDLS); 3214 if (!trig) 3215 return; 3216 3217 tdls_trig = (void *)trig->data; 3218 3219 if (!(tdls_trig->action_bitmap & BIT(action))) 3220 return; 3221 3222 if (tdls_trig->peer_mode && 3223 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 3224 return; 3225 3226 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 3227 "TDLS event occurred, peer %pM, action %d", 3228 peer_addr, action); 3229 } 3230 3231 struct iwl_mvm_he_obss_narrow_bw_ru_data { 3232 bool tolerated; 3233 }; 3234 3235 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 3236 struct cfg80211_bss *bss, 3237 void *_data) 3238 { 3239 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 3240 const struct cfg80211_bss_ies *ies; 3241 const struct element *elem; 3242 3243 rcu_read_lock(); 3244 ies = rcu_dereference(bss->ies); 3245 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data, 3246 ies->len); 3247 3248 if (!elem || elem->datalen < 10 || 3249 !(elem->data[10] & 3250 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3251 data->tolerated = false; 3252 } 3253 rcu_read_unlock(); 3254 } 3255 3256 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3257 struct ieee80211_vif *vif) 3258 { 3259 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3260 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3261 .tolerated = true, 3262 }; 3263 3264 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3265 mvmvif->he_ru_2mhz_block = false; 3266 return; 3267 } 3268 3269 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef, 3270 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3271 &iter_data); 3272 3273 /* 3274 * If there is at least one AP on radar channel that cannot 3275 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3276 */ 3277 mvmvif->he_ru_2mhz_block = !iter_data.tolerated; 3278 } 3279 3280 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm, 3281 struct ieee80211_vif *vif) 3282 { 3283 struct ieee80211_supported_band *sband; 3284 const struct ieee80211_sta_he_cap *he_cap; 3285 3286 if (vif->type != NL80211_IFTYPE_STATION) 3287 return; 3288 3289 if (!mvm->cca_40mhz_workaround) 3290 return; 3291 3292 /* decrement and check that we reached zero */ 3293 mvm->cca_40mhz_workaround--; 3294 if (mvm->cca_40mhz_workaround) 3295 return; 3296 3297 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 3298 3299 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 3300 3301 he_cap = ieee80211_get_he_iftype_cap(sband, 3302 ieee80211_vif_type_p2p(vif)); 3303 3304 if (he_cap) { 3305 /* we know that ours is writable */ 3306 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 3307 3308 he->he_cap_elem.phy_cap_info[0] |= 3309 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 3310 } 3311 } 3312 3313 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm, 3314 struct ieee80211_vif *vif, 3315 struct iwl_mvm_sta *mvm_sta) 3316 { 3317 #if IS_ENABLED(CONFIG_IWLMEI) 3318 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3319 struct iwl_mei_conn_info conn_info = { 3320 .ssid_len = vif->bss_conf.ssid_len, 3321 .channel = vif->bss_conf.chandef.chan->hw_value, 3322 }; 3323 3324 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3325 return; 3326 3327 if (!mvm->mei_registered) 3328 return; 3329 3330 switch (mvm_sta->pairwise_cipher) { 3331 case WLAN_CIPHER_SUITE_CCMP: 3332 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP; 3333 break; 3334 case WLAN_CIPHER_SUITE_GCMP: 3335 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP; 3336 break; 3337 case WLAN_CIPHER_SUITE_GCMP_256: 3338 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256; 3339 break; 3340 case 0: 3341 /* open profile */ 3342 break; 3343 default: 3344 /* cipher not supported, don't send anything to iwlmei */ 3345 return; 3346 } 3347 3348 switch (mvmvif->rekey_data.akm) { 3349 case WLAN_AKM_SUITE_SAE & 0xff: 3350 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE; 3351 break; 3352 case WLAN_AKM_SUITE_PSK & 0xff: 3353 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK; 3354 break; 3355 case WLAN_AKM_SUITE_8021X & 0xff: 3356 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA; 3357 break; 3358 case 0: 3359 /* open profile */ 3360 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN; 3361 break; 3362 default: 3363 /* auth method / AKM not supported */ 3364 /* TODO: All the FT vesions of these? */ 3365 return; 3366 } 3367 3368 memcpy(conn_info.ssid, vif->bss_conf.ssid, vif->bss_conf.ssid_len); 3369 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN); 3370 3371 /* TODO: add support for collocated AP data */ 3372 iwl_mei_host_associated(&conn_info, NULL); 3373 #endif 3374 } 3375 3376 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3377 struct ieee80211_vif *vif, 3378 struct ieee80211_sta *sta, 3379 enum ieee80211_sta_state old_state, 3380 enum ieee80211_sta_state new_state) 3381 { 3382 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3383 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3384 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3385 int ret; 3386 3387 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3388 sta->addr, old_state, new_state); 3389 3390 /* this would be a mac80211 bug ... but don't crash */ 3391 if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 3392 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) ? 0 : -EINVAL; 3393 3394 /* 3395 * If we are in a STA removal flow and in DQA mode: 3396 * 3397 * This is after the sync_rcu part, so the queues have already been 3398 * flushed. No more TXs on their way in mac80211's path, and no more in 3399 * the queues. 3400 * Also, we won't be getting any new TX frames for this station. 3401 * What we might have are deferred TX frames that need to be taken care 3402 * of. 3403 * 3404 * Drop any still-queued deferred-frame before removing the STA, and 3405 * make sure the worker is no longer handling frames for this STA. 3406 */ 3407 if (old_state == IEEE80211_STA_NONE && 3408 new_state == IEEE80211_STA_NOTEXIST) { 3409 flush_work(&mvm->add_stream_wk); 3410 3411 /* 3412 * No need to make sure deferred TX indication is off since the 3413 * worker will already remove it if it was on 3414 */ 3415 3416 /* 3417 * Additionally, reset the 40 MHz capability if we disconnected 3418 * from the AP now. 3419 */ 3420 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif); 3421 } 3422 3423 mutex_lock(&mvm->mutex); 3424 /* track whether or not the station is associated */ 3425 mvm_sta->sta_state = new_state; 3426 3427 if (old_state == IEEE80211_STA_NOTEXIST && 3428 new_state == IEEE80211_STA_NONE) { 3429 /* 3430 * Firmware bug - it'll crash if the beacon interval is less 3431 * than 16. We can't avoid connecting at all, so refuse the 3432 * station state change, this will cause mac80211 to abandon 3433 * attempts to connect to this AP, and eventually wpa_s will 3434 * blocklist the AP... 3435 */ 3436 if (vif->type == NL80211_IFTYPE_STATION && 3437 vif->bss_conf.beacon_int < 16) { 3438 IWL_ERR(mvm, 3439 "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 3440 sta->addr, vif->bss_conf.beacon_int); 3441 ret = -EINVAL; 3442 goto out_unlock; 3443 } 3444 3445 if (vif->type == NL80211_IFTYPE_STATION) 3446 vif->bss_conf.he_support = sta->he_cap.has_he; 3447 3448 if (sta->tdls && 3449 (vif->p2p || 3450 iwl_mvm_tdls_sta_count(mvm, NULL) == 3451 IWL_MVM_TDLS_STA_COUNT || 3452 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3453 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3454 ret = -EBUSY; 3455 goto out_unlock; 3456 } 3457 3458 ret = iwl_mvm_add_sta(mvm, vif, sta); 3459 if (sta->tdls && ret == 0) { 3460 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3461 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3462 NL80211_TDLS_SETUP); 3463 } 3464 3465 sta->max_rc_amsdu_len = 1; 3466 } else if (old_state == IEEE80211_STA_NONE && 3467 new_state == IEEE80211_STA_AUTH) { 3468 /* 3469 * EBS may be disabled due to previous failures reported by FW. 3470 * Reset EBS status here assuming environment has been changed. 3471 */ 3472 mvm->last_ebs_successful = true; 3473 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3474 ret = 0; 3475 } else if (old_state == IEEE80211_STA_AUTH && 3476 new_state == IEEE80211_STA_ASSOC) { 3477 if (vif->type == NL80211_IFTYPE_AP) { 3478 vif->bss_conf.he_support = sta->he_cap.has_he; 3479 mvmvif->ap_assoc_sta_count++; 3480 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3481 if (vif->bss_conf.he_support && 3482 !iwlwifi_mod_params.disable_11ax) 3483 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); 3484 } else if (vif->type == NL80211_IFTYPE_STATION) { 3485 vif->bss_conf.he_support = sta->he_cap.has_he; 3486 3487 mvmvif->he_ru_2mhz_block = false; 3488 if (sta->he_cap.has_he) 3489 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif); 3490 3491 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3492 } 3493 3494 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3495 false); 3496 ret = iwl_mvm_update_sta(mvm, vif, sta); 3497 } else if (old_state == IEEE80211_STA_ASSOC && 3498 new_state == IEEE80211_STA_AUTHORIZED) { 3499 ret = 0; 3500 3501 /* we don't support TDLS during DCM */ 3502 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3503 iwl_mvm_teardown_tdls_peers(mvm); 3504 3505 if (sta->tdls) { 3506 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3507 NL80211_TDLS_ENABLE_LINK); 3508 } else { 3509 /* enable beacon filtering */ 3510 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3511 3512 mvmvif->authorized = 1; 3513 3514 /* 3515 * Now that the station is authorized, i.e., keys were already 3516 * installed, need to indicate to the FW that 3517 * multicast data frames can be forwarded to the driver 3518 */ 3519 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3520 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta); 3521 } 3522 3523 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3524 true); 3525 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3526 new_state == IEEE80211_STA_ASSOC) { 3527 /* once we move into assoc state, need to update rate scale to 3528 * disable using wide bandwidth 3529 */ 3530 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3531 false); 3532 if (!sta->tdls) { 3533 /* Multicast data frames are no longer allowed */ 3534 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3535 3536 /* 3537 * Set this after the above iwl_mvm_mac_ctxt_changed() 3538 * to avoid sending high prio again for a little time. 3539 */ 3540 mvmvif->authorized = 0; 3541 3542 /* disable beacon filtering */ 3543 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3544 WARN_ON(ret && 3545 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3546 &mvm->status)); 3547 } 3548 ret = 0; 3549 } else if (old_state == IEEE80211_STA_ASSOC && 3550 new_state == IEEE80211_STA_AUTH) { 3551 if (vif->type == NL80211_IFTYPE_AP) { 3552 mvmvif->ap_assoc_sta_count--; 3553 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3554 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3555 iwl_mvm_stop_session_protection(mvm, vif); 3556 ret = 0; 3557 } else if (old_state == IEEE80211_STA_AUTH && 3558 new_state == IEEE80211_STA_NONE) { 3559 ret = 0; 3560 } else if (old_state == IEEE80211_STA_NONE && 3561 new_state == IEEE80211_STA_NOTEXIST) { 3562 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) 3563 iwl_mvm_stop_session_protection(mvm, vif); 3564 ret = iwl_mvm_rm_sta(mvm, vif, sta); 3565 if (sta->tdls) { 3566 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3567 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3568 NL80211_TDLS_DISABLE_LINK); 3569 } 3570 3571 if (unlikely(ret && 3572 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3573 &mvm->status))) 3574 ret = 0; 3575 } else { 3576 ret = -EIO; 3577 } 3578 out_unlock: 3579 mutex_unlock(&mvm->mutex); 3580 3581 if (sta->tdls && ret == 0) { 3582 if (old_state == IEEE80211_STA_NOTEXIST && 3583 new_state == IEEE80211_STA_NONE) 3584 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3585 else if (old_state == IEEE80211_STA_NONE && 3586 new_state == IEEE80211_STA_NOTEXIST) 3587 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3588 } 3589 3590 return ret; 3591 } 3592 3593 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3594 { 3595 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3596 3597 mvm->rts_threshold = value; 3598 3599 return 0; 3600 } 3601 3602 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 3603 struct ieee80211_vif *vif, 3604 struct ieee80211_sta *sta, u32 changed) 3605 { 3606 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3607 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3608 3609 if (changed & (IEEE80211_RC_BW_CHANGED | 3610 IEEE80211_RC_SUPP_RATES_CHANGED | 3611 IEEE80211_RC_NSS_CHANGED)) 3612 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3613 true); 3614 3615 if (vif->type == NL80211_IFTYPE_STATION && 3616 changed & IEEE80211_RC_NSS_CHANGED) 3617 iwl_mvm_sf_update(mvm, vif, false); 3618 } 3619 3620 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3621 struct ieee80211_vif *vif, u16 ac, 3622 const struct ieee80211_tx_queue_params *params) 3623 { 3624 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3625 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3626 3627 mvmvif->queue_params[ac] = *params; 3628 3629 /* 3630 * No need to update right away, we'll get BSS_CHANGED_QOS 3631 * The exception is P2P_DEVICE interface which needs immediate update. 3632 */ 3633 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3634 int ret; 3635 3636 mutex_lock(&mvm->mutex); 3637 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3638 mutex_unlock(&mvm->mutex); 3639 return ret; 3640 } 3641 return 0; 3642 } 3643 3644 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 3645 struct ieee80211_vif *vif, 3646 struct ieee80211_prep_tx_info *info) 3647 { 3648 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3649 3650 mutex_lock(&mvm->mutex); 3651 iwl_mvm_protect_assoc(mvm, vif, info->duration); 3652 mutex_unlock(&mvm->mutex); 3653 } 3654 3655 static void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw, 3656 struct ieee80211_vif *vif, 3657 struct ieee80211_prep_tx_info *info) 3658 { 3659 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3660 3661 /* for successful cases (auth/assoc), don't cancel session protection */ 3662 if (info->success) 3663 return; 3664 3665 mutex_lock(&mvm->mutex); 3666 iwl_mvm_stop_session_protection(mvm, vif); 3667 mutex_unlock(&mvm->mutex); 3668 } 3669 3670 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 3671 struct ieee80211_vif *vif, 3672 struct cfg80211_sched_scan_request *req, 3673 struct ieee80211_scan_ies *ies) 3674 { 3675 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3676 3677 int ret; 3678 3679 mutex_lock(&mvm->mutex); 3680 3681 if (!vif->bss_conf.idle) { 3682 ret = -EBUSY; 3683 goto out; 3684 } 3685 3686 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 3687 3688 out: 3689 mutex_unlock(&mvm->mutex); 3690 return ret; 3691 } 3692 3693 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 3694 struct ieee80211_vif *vif) 3695 { 3696 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3697 int ret; 3698 3699 mutex_lock(&mvm->mutex); 3700 3701 /* Due to a race condition, it's possible that mac80211 asks 3702 * us to stop a sched_scan when it's already stopped. This 3703 * can happen, for instance, if we stopped the scan ourselves, 3704 * called ieee80211_sched_scan_stopped() and the userspace called 3705 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 3706 * could run. To handle this, simply return if the scan is 3707 * not running. 3708 */ 3709 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 3710 mutex_unlock(&mvm->mutex); 3711 return 0; 3712 } 3713 3714 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 3715 mutex_unlock(&mvm->mutex); 3716 iwl_mvm_wait_for_async_handlers(mvm); 3717 3718 return ret; 3719 } 3720 3721 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3722 enum set_key_cmd cmd, 3723 struct ieee80211_vif *vif, 3724 struct ieee80211_sta *sta, 3725 struct ieee80211_key_conf *key) 3726 { 3727 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3728 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3729 struct iwl_mvm_sta *mvmsta = NULL; 3730 struct iwl_mvm_key_pn *ptk_pn; 3731 int keyidx = key->keyidx; 3732 int ret, i; 3733 u8 key_offset; 3734 3735 if (sta) 3736 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3737 3738 switch (key->cipher) { 3739 case WLAN_CIPHER_SUITE_TKIP: 3740 if (!mvm->trans->trans_cfg->gen2) { 3741 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 3742 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3743 } else if (vif->type == NL80211_IFTYPE_STATION) { 3744 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 3745 } else { 3746 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 3747 return -EOPNOTSUPP; 3748 } 3749 break; 3750 case WLAN_CIPHER_SUITE_CCMP: 3751 case WLAN_CIPHER_SUITE_GCMP: 3752 case WLAN_CIPHER_SUITE_GCMP_256: 3753 if (!iwl_mvm_has_new_tx_api(mvm)) 3754 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3755 break; 3756 case WLAN_CIPHER_SUITE_AES_CMAC: 3757 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3758 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3759 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 3760 break; 3761 case WLAN_CIPHER_SUITE_WEP40: 3762 case WLAN_CIPHER_SUITE_WEP104: 3763 if (vif->type == NL80211_IFTYPE_STATION) 3764 break; 3765 if (iwl_mvm_has_new_tx_api(mvm)) 3766 return -EOPNOTSUPP; 3767 /* support HW crypto on TX */ 3768 return 0; 3769 default: 3770 /* currently FW supports only one optional cipher scheme */ 3771 if (hw->n_cipher_schemes && 3772 hw->cipher_schemes->cipher == key->cipher) 3773 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3774 else 3775 return -EOPNOTSUPP; 3776 } 3777 3778 switch (cmd) { 3779 case SET_KEY: 3780 if (keyidx == 6 || keyidx == 7) 3781 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 3782 key); 3783 3784 if ((vif->type == NL80211_IFTYPE_ADHOC || 3785 vif->type == NL80211_IFTYPE_AP) && !sta) { 3786 /* 3787 * GTK on AP interface is a TX-only key, return 0; 3788 * on IBSS they're per-station and because we're lazy 3789 * we don't support them for RX, so do the same. 3790 * CMAC/GMAC in AP/IBSS modes must be done in software. 3791 */ 3792 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3793 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3794 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) { 3795 ret = -EOPNOTSUPP; 3796 break; 3797 } 3798 3799 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 3800 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 3801 !iwl_mvm_has_new_tx_api(mvm)) { 3802 key->hw_key_idx = STA_KEY_IDX_INVALID; 3803 ret = 0; 3804 break; 3805 } 3806 3807 if (!mvmvif->ap_ibss_active) { 3808 for (i = 0; 3809 i < ARRAY_SIZE(mvmvif->ap_early_keys); 3810 i++) { 3811 if (!mvmvif->ap_early_keys[i]) { 3812 mvmvif->ap_early_keys[i] = key; 3813 break; 3814 } 3815 } 3816 3817 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 3818 ret = -ENOSPC; 3819 else 3820 ret = 0; 3821 3822 break; 3823 } 3824 } 3825 3826 /* During FW restart, in order to restore the state as it was, 3827 * don't try to reprogram keys we previously failed for. 3828 */ 3829 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3830 key->hw_key_idx == STA_KEY_IDX_INVALID) { 3831 IWL_DEBUG_MAC80211(mvm, 3832 "skip invalid idx key programming during restart\n"); 3833 ret = 0; 3834 break; 3835 } 3836 3837 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3838 mvmsta && iwl_mvm_has_new_rx_api(mvm) && 3839 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3840 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3841 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3842 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3843 struct ieee80211_key_seq seq; 3844 int tid, q; 3845 3846 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 3847 ptk_pn = kzalloc(struct_size(ptk_pn, q, 3848 mvm->trans->num_rx_queues), 3849 GFP_KERNEL); 3850 if (!ptk_pn) { 3851 ret = -ENOMEM; 3852 break; 3853 } 3854 3855 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3856 ieee80211_get_key_rx_seq(key, tid, &seq); 3857 for (q = 0; q < mvm->trans->num_rx_queues; q++) 3858 memcpy(ptk_pn->q[q].pn[tid], 3859 seq.ccmp.pn, 3860 IEEE80211_CCMP_PN_LEN); 3861 } 3862 3863 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3864 } 3865 3866 /* in HW restart reuse the index, otherwise request a new one */ 3867 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3868 key_offset = key->hw_key_idx; 3869 else 3870 key_offset = STA_KEY_IDX_INVALID; 3871 3872 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 3873 mvmsta->pairwise_cipher = key->cipher; 3874 3875 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 3876 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3877 if (ret) { 3878 IWL_WARN(mvm, "set key failed\n"); 3879 key->hw_key_idx = STA_KEY_IDX_INVALID; 3880 /* 3881 * can't add key for RX, but we don't need it 3882 * in the device for TX so still return 0, 3883 * unless we have new TX API where we cannot 3884 * put key material into the TX_CMD 3885 */ 3886 if (iwl_mvm_has_new_tx_api(mvm)) 3887 ret = -EOPNOTSUPP; 3888 else 3889 ret = 0; 3890 } 3891 3892 break; 3893 case DISABLE_KEY: 3894 if (keyidx == 6 || keyidx == 7) 3895 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6], 3896 NULL); 3897 3898 ret = -ENOENT; 3899 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3900 if (mvmvif->ap_early_keys[i] == key) { 3901 mvmvif->ap_early_keys[i] = NULL; 3902 ret = 0; 3903 } 3904 } 3905 3906 /* found in pending list - don't do anything else */ 3907 if (ret == 0) 3908 break; 3909 3910 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3911 ret = 0; 3912 break; 3913 } 3914 3915 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) && 3916 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3917 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3918 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3919 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3920 ptk_pn = rcu_dereference_protected( 3921 mvmsta->ptk_pn[keyidx], 3922 lockdep_is_held(&mvm->mutex)); 3923 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3924 if (ptk_pn) 3925 kfree_rcu(ptk_pn, rcu_head); 3926 } 3927 3928 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3929 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3930 break; 3931 default: 3932 ret = -EINVAL; 3933 } 3934 3935 return ret; 3936 } 3937 3938 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3939 enum set_key_cmd cmd, 3940 struct ieee80211_vif *vif, 3941 struct ieee80211_sta *sta, 3942 struct ieee80211_key_conf *key) 3943 { 3944 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3945 int ret; 3946 3947 mutex_lock(&mvm->mutex); 3948 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 3949 mutex_unlock(&mvm->mutex); 3950 3951 return ret; 3952 } 3953 3954 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3955 struct ieee80211_vif *vif, 3956 struct ieee80211_key_conf *keyconf, 3957 struct ieee80211_sta *sta, 3958 u32 iv32, u16 *phase1key) 3959 { 3960 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3961 3962 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3963 return; 3964 3965 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3966 } 3967 3968 3969 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3970 struct iwl_rx_packet *pkt, void *data) 3971 { 3972 struct iwl_mvm *mvm = 3973 container_of(notif_wait, struct iwl_mvm, notif_wait); 3974 struct iwl_hs20_roc_res *resp; 3975 int resp_len = iwl_rx_packet_payload_len(pkt); 3976 struct iwl_mvm_time_event_data *te_data = data; 3977 3978 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3979 return true; 3980 3981 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3982 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3983 return true; 3984 } 3985 3986 resp = (void *)pkt->data; 3987 3988 IWL_DEBUG_TE(mvm, 3989 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 3990 resp->status, resp->event_unique_id); 3991 3992 te_data->uid = le32_to_cpu(resp->event_unique_id); 3993 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3994 te_data->uid); 3995 3996 spin_lock_bh(&mvm->time_event_lock); 3997 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3998 spin_unlock_bh(&mvm->time_event_lock); 3999 4000 return true; 4001 } 4002 4003 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 4004 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 4005 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 4006 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 4007 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 4008 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 4009 struct ieee80211_channel *channel, 4010 struct ieee80211_vif *vif, 4011 int duration) 4012 { 4013 int res; 4014 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4015 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 4016 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 4017 struct iwl_notification_wait wait_time_event; 4018 u32 dtim_interval = vif->bss_conf.dtim_period * 4019 vif->bss_conf.beacon_int; 4020 u32 req_dur, delay; 4021 struct iwl_hs20_roc_req aux_roc_req = { 4022 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4023 .id_and_color = 4024 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 4025 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 4026 }; 4027 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 4028 &aux_roc_req.channel_info); 4029 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 4030 4031 /* Set the channel info data */ 4032 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 4033 iwl_mvm_phy_band_from_nl80211(channel->band), 4034 PHY_VHT_CHANNEL_MODE20, 4035 0); 4036 4037 /* Set the time and duration */ 4038 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 4039 4040 delay = AUX_ROC_MIN_DELAY; 4041 req_dur = MSEC_TO_TU(duration); 4042 4043 /* 4044 * If we are associated we want the delay time to be at least one 4045 * dtim interval so that the FW can wait until after the DTIM and 4046 * then start the time event, this will potentially allow us to 4047 * remain off-channel for the max duration. 4048 * Since we want to use almost a whole dtim interval we would also 4049 * like the delay to be for 2-3 dtim intervals, in case there are 4050 * other time events with higher priority. 4051 */ 4052 if (vif->bss_conf.assoc) { 4053 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 4054 /* We cannot remain off-channel longer than the DTIM interval */ 4055 if (dtim_interval <= req_dur) { 4056 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 4057 if (req_dur <= AUX_ROC_MIN_DURATION) 4058 req_dur = dtim_interval - 4059 AUX_ROC_MIN_SAFETY_BUFFER; 4060 } 4061 } 4062 4063 tail->duration = cpu_to_le32(req_dur); 4064 tail->apply_time_max_delay = cpu_to_le32(delay); 4065 4066 IWL_DEBUG_TE(mvm, 4067 "ROC: Requesting to remain on channel %u for %ums\n", 4068 channel->hw_value, req_dur); 4069 IWL_DEBUG_TE(mvm, 4070 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 4071 duration, delay, dtim_interval); 4072 4073 /* Set the node address */ 4074 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 4075 4076 lockdep_assert_held(&mvm->mutex); 4077 4078 spin_lock_bh(&mvm->time_event_lock); 4079 4080 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 4081 spin_unlock_bh(&mvm->time_event_lock); 4082 return -EIO; 4083 } 4084 4085 te_data->vif = vif; 4086 te_data->duration = duration; 4087 te_data->id = HOT_SPOT_CMD; 4088 4089 spin_unlock_bh(&mvm->time_event_lock); 4090 4091 /* 4092 * Use a notification wait, which really just processes the 4093 * command response and doesn't wait for anything, in order 4094 * to be able to process the response and get the UID inside 4095 * the RX path. Using CMD_WANT_SKB doesn't work because it 4096 * stores the buffer and then wakes up this thread, by which 4097 * time another notification (that the time event started) 4098 * might already be processed unsuccessfully. 4099 */ 4100 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 4101 time_event_response, 4102 ARRAY_SIZE(time_event_response), 4103 iwl_mvm_rx_aux_roc, te_data); 4104 4105 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 4106 &aux_roc_req); 4107 4108 if (res) { 4109 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 4110 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 4111 goto out_clear_te; 4112 } 4113 4114 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 4115 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 4116 /* should never fail */ 4117 WARN_ON_ONCE(res); 4118 4119 if (res) { 4120 out_clear_te: 4121 spin_lock_bh(&mvm->time_event_lock); 4122 iwl_mvm_te_clear_data(mvm, te_data); 4123 spin_unlock_bh(&mvm->time_event_lock); 4124 } 4125 4126 return res; 4127 } 4128 4129 static int iwl_mvm_roc(struct ieee80211_hw *hw, 4130 struct ieee80211_vif *vif, 4131 struct ieee80211_channel *channel, 4132 int duration, 4133 enum ieee80211_roc_type type) 4134 { 4135 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4136 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4137 struct cfg80211_chan_def chandef; 4138 struct iwl_mvm_phy_ctxt *phy_ctxt; 4139 bool band_change_removal; 4140 int ret, i; 4141 4142 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 4143 duration, type); 4144 4145 /* 4146 * Flush the done work, just in case it's still pending, so that 4147 * the work it does can complete and we can accept new frames. 4148 */ 4149 flush_work(&mvm->roc_done_wk); 4150 4151 mutex_lock(&mvm->mutex); 4152 4153 switch (vif->type) { 4154 case NL80211_IFTYPE_STATION: 4155 if (fw_has_capa(&mvm->fw->ucode_capa, 4156 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 4157 /* Use aux roc framework (HS20) */ 4158 if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12) { 4159 u32 lmac_id; 4160 4161 lmac_id = iwl_mvm_get_lmac_id(mvm->fw, 4162 channel->band); 4163 ret = iwl_mvm_add_aux_sta(mvm, lmac_id); 4164 if (WARN(ret, 4165 "Failed to allocate aux station")) 4166 goto out_unlock; 4167 } 4168 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 4169 vif, duration); 4170 goto out_unlock; 4171 } 4172 IWL_ERR(mvm, "hotspot not supported\n"); 4173 ret = -EINVAL; 4174 goto out_unlock; 4175 case NL80211_IFTYPE_P2P_DEVICE: 4176 /* handle below */ 4177 break; 4178 default: 4179 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 4180 ret = -EINVAL; 4181 goto out_unlock; 4182 } 4183 4184 for (i = 0; i < NUM_PHY_CTX; i++) { 4185 phy_ctxt = &mvm->phy_ctxts[i]; 4186 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 4187 continue; 4188 4189 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 4190 /* 4191 * Unbind the P2P_DEVICE from the current PHY context, 4192 * and if the PHY context is not used remove it. 4193 */ 4194 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4195 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4196 goto out_unlock; 4197 4198 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 4199 4200 /* Bind the P2P_DEVICE to the current PHY Context */ 4201 mvmvif->phy_ctxt = phy_ctxt; 4202 4203 ret = iwl_mvm_binding_add_vif(mvm, vif); 4204 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4205 goto out_unlock; 4206 4207 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 4208 goto schedule_time_event; 4209 } 4210 } 4211 4212 /* Need to update the PHY context only if the ROC channel changed */ 4213 if (channel == mvmvif->phy_ctxt->channel) 4214 goto schedule_time_event; 4215 4216 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 4217 4218 /* 4219 * Check if the remain-on-channel is on a different band and that 4220 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If 4221 * so, we'll need to release and then re-configure here, since we 4222 * must not remove a PHY context that's part of a binding. 4223 */ 4224 band_change_removal = 4225 fw_has_capa(&mvm->fw->ucode_capa, 4226 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) && 4227 mvmvif->phy_ctxt->channel->band != chandef.chan->band; 4228 4229 if (mvmvif->phy_ctxt->ref == 1 && !band_change_removal) { 4230 /* 4231 * Change the PHY context configuration as it is currently 4232 * referenced only by the P2P Device MAC (and we can modify it) 4233 */ 4234 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 4235 &chandef, 1, 1); 4236 if (ret) 4237 goto out_unlock; 4238 } else { 4239 /* 4240 * The PHY context is shared with other MACs (or we're trying to 4241 * switch bands), so remove the P2P Device from the binding, 4242 * allocate an new PHY context and create a new binding. 4243 */ 4244 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4245 if (!phy_ctxt) { 4246 ret = -ENOSPC; 4247 goto out_unlock; 4248 } 4249 4250 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 4251 1, 1); 4252 if (ret) { 4253 IWL_ERR(mvm, "Failed to change PHY context\n"); 4254 goto out_unlock; 4255 } 4256 4257 /* Unbind the P2P_DEVICE from the current PHY context */ 4258 ret = iwl_mvm_binding_remove_vif(mvm, vif); 4259 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 4260 goto out_unlock; 4261 4262 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 4263 4264 /* Bind the P2P_DEVICE to the new allocated PHY context */ 4265 mvmvif->phy_ctxt = phy_ctxt; 4266 4267 ret = iwl_mvm_binding_add_vif(mvm, vif); 4268 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 4269 goto out_unlock; 4270 4271 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 4272 } 4273 4274 schedule_time_event: 4275 /* Schedule the time events */ 4276 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 4277 4278 out_unlock: 4279 mutex_unlock(&mvm->mutex); 4280 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4281 return ret; 4282 } 4283 4284 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 4285 struct ieee80211_vif *vif) 4286 { 4287 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4288 4289 IWL_DEBUG_MAC80211(mvm, "enter\n"); 4290 4291 mutex_lock(&mvm->mutex); 4292 iwl_mvm_stop_roc(mvm, vif); 4293 mutex_unlock(&mvm->mutex); 4294 4295 IWL_DEBUG_MAC80211(mvm, "leave\n"); 4296 return 0; 4297 } 4298 4299 struct iwl_mvm_ftm_responder_iter_data { 4300 bool responder; 4301 struct ieee80211_chanctx_conf *ctx; 4302 }; 4303 4304 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 4305 struct ieee80211_vif *vif) 4306 { 4307 struct iwl_mvm_ftm_responder_iter_data *data = _data; 4308 4309 if (rcu_access_pointer(vif->chanctx_conf) == data->ctx && 4310 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 4311 data->responder = true; 4312 } 4313 4314 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 4315 struct ieee80211_chanctx_conf *ctx) 4316 { 4317 struct iwl_mvm_ftm_responder_iter_data data = { 4318 .responder = false, 4319 .ctx = ctx, 4320 }; 4321 4322 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 4323 IEEE80211_IFACE_ITER_NORMAL, 4324 iwl_mvm_ftm_responder_chanctx_iter, 4325 &data); 4326 return data.responder; 4327 } 4328 4329 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 4330 struct ieee80211_chanctx_conf *ctx) 4331 { 4332 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4333 struct iwl_mvm_phy_ctxt *phy_ctxt; 4334 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4335 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4336 int ret; 4337 4338 lockdep_assert_held(&mvm->mutex); 4339 4340 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 4341 4342 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 4343 if (!phy_ctxt) { 4344 ret = -ENOSPC; 4345 goto out; 4346 } 4347 4348 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4349 ctx->rx_chains_static, 4350 ctx->rx_chains_dynamic); 4351 if (ret) { 4352 IWL_ERR(mvm, "Failed to add PHY context\n"); 4353 goto out; 4354 } 4355 4356 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 4357 *phy_ctxt_id = phy_ctxt->id; 4358 out: 4359 return ret; 4360 } 4361 4362 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 4363 struct ieee80211_chanctx_conf *ctx) 4364 { 4365 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4366 int ret; 4367 4368 mutex_lock(&mvm->mutex); 4369 ret = __iwl_mvm_add_chanctx(mvm, ctx); 4370 mutex_unlock(&mvm->mutex); 4371 4372 return ret; 4373 } 4374 4375 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 4376 struct ieee80211_chanctx_conf *ctx) 4377 { 4378 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4379 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4380 4381 lockdep_assert_held(&mvm->mutex); 4382 4383 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 4384 } 4385 4386 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 4387 struct ieee80211_chanctx_conf *ctx) 4388 { 4389 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4390 4391 mutex_lock(&mvm->mutex); 4392 __iwl_mvm_remove_chanctx(mvm, ctx); 4393 mutex_unlock(&mvm->mutex); 4394 } 4395 4396 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 4397 struct ieee80211_chanctx_conf *ctx, 4398 u32 changed) 4399 { 4400 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4401 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4402 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4403 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4404 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4405 4406 if (WARN_ONCE((phy_ctxt->ref > 1) && 4407 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4408 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4409 IEEE80211_CHANCTX_CHANGE_RADAR | 4410 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4411 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4412 phy_ctxt->ref, changed)) 4413 return; 4414 4415 mutex_lock(&mvm->mutex); 4416 4417 /* we are only changing the min_width, may be a noop */ 4418 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4419 if (phy_ctxt->width == def->width) 4420 goto out_unlock; 4421 4422 /* we are just toggling between 20_NOHT and 20 */ 4423 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4424 def->width <= NL80211_CHAN_WIDTH_20) 4425 goto out_unlock; 4426 } 4427 4428 iwl_mvm_bt_coex_vif_change(mvm); 4429 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4430 ctx->rx_chains_static, 4431 ctx->rx_chains_dynamic); 4432 4433 out_unlock: 4434 mutex_unlock(&mvm->mutex); 4435 } 4436 4437 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4438 struct ieee80211_vif *vif, 4439 struct ieee80211_chanctx_conf *ctx, 4440 bool switching_chanctx) 4441 { 4442 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4443 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4444 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4445 int ret; 4446 4447 lockdep_assert_held(&mvm->mutex); 4448 4449 mvmvif->phy_ctxt = phy_ctxt; 4450 4451 switch (vif->type) { 4452 case NL80211_IFTYPE_AP: 4453 /* only needed if we're switching chanctx (i.e. during CSA) */ 4454 if (switching_chanctx) { 4455 mvmvif->ap_ibss_active = true; 4456 break; 4457 } 4458 fallthrough; 4459 case NL80211_IFTYPE_ADHOC: 4460 /* 4461 * The AP binding flow is handled as part of the start_ap flow 4462 * (in bss_info_changed), similarly for IBSS. 4463 */ 4464 ret = 0; 4465 goto out; 4466 case NL80211_IFTYPE_STATION: 4467 mvmvif->csa_bcn_pending = false; 4468 break; 4469 case NL80211_IFTYPE_MONITOR: 4470 /* always disable PS when a monitor interface is active */ 4471 mvmvif->ps_disabled = true; 4472 break; 4473 default: 4474 ret = -EINVAL; 4475 goto out; 4476 } 4477 4478 ret = iwl_mvm_binding_add_vif(mvm, vif); 4479 if (ret) 4480 goto out; 4481 4482 /* 4483 * Power state must be updated before quotas, 4484 * otherwise fw will complain. 4485 */ 4486 iwl_mvm_power_update_mac(mvm); 4487 4488 /* Setting the quota at this stage is only required for monitor 4489 * interfaces. For the other types, the bss_info changed flow 4490 * will handle quota settings. 4491 */ 4492 if (vif->type == NL80211_IFTYPE_MONITOR) { 4493 mvmvif->monitor_active = true; 4494 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4495 if (ret) 4496 goto out_remove_binding; 4497 4498 ret = iwl_mvm_add_snif_sta(mvm, vif); 4499 if (ret) 4500 goto out_remove_binding; 4501 4502 } 4503 4504 /* Handle binding during CSA */ 4505 if (vif->type == NL80211_IFTYPE_AP) { 4506 iwl_mvm_update_quotas(mvm, false, NULL); 4507 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4508 } 4509 4510 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 4511 mvmvif->csa_bcn_pending = true; 4512 4513 if (!fw_has_capa(&mvm->fw->ucode_capa, 4514 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4515 u32 duration = 3 * vif->bss_conf.beacon_int; 4516 4517 /* Protect the session to make sure we hear the first 4518 * beacon on the new channel. 4519 */ 4520 iwl_mvm_protect_session(mvm, vif, duration, duration, 4521 vif->bss_conf.beacon_int / 2, 4522 true); 4523 } 4524 4525 iwl_mvm_update_quotas(mvm, false, NULL); 4526 } 4527 4528 goto out; 4529 4530 out_remove_binding: 4531 iwl_mvm_binding_remove_vif(mvm, vif); 4532 iwl_mvm_power_update_mac(mvm); 4533 out: 4534 if (ret) 4535 mvmvif->phy_ctxt = NULL; 4536 return ret; 4537 } 4538 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4539 struct ieee80211_vif *vif, 4540 struct ieee80211_chanctx_conf *ctx) 4541 { 4542 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4543 int ret; 4544 4545 mutex_lock(&mvm->mutex); 4546 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 4547 mutex_unlock(&mvm->mutex); 4548 4549 return ret; 4550 } 4551 4552 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4553 struct ieee80211_vif *vif, 4554 struct ieee80211_chanctx_conf *ctx, 4555 bool switching_chanctx) 4556 { 4557 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4558 struct ieee80211_vif *disabled_vif = NULL; 4559 4560 lockdep_assert_held(&mvm->mutex); 4561 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 4562 4563 switch (vif->type) { 4564 case NL80211_IFTYPE_ADHOC: 4565 goto out; 4566 case NL80211_IFTYPE_MONITOR: 4567 mvmvif->monitor_active = false; 4568 mvmvif->ps_disabled = false; 4569 iwl_mvm_rm_snif_sta(mvm, vif); 4570 break; 4571 case NL80211_IFTYPE_AP: 4572 /* This part is triggered only during CSA */ 4573 if (!switching_chanctx || !mvmvif->ap_ibss_active) 4574 goto out; 4575 4576 mvmvif->csa_countdown = false; 4577 4578 /* Set CS bit on all the stations */ 4579 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4580 4581 /* Save blocked iface, the timeout is set on the next beacon */ 4582 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4583 4584 mvmvif->ap_ibss_active = false; 4585 break; 4586 case NL80211_IFTYPE_STATION: 4587 if (!switching_chanctx) 4588 break; 4589 4590 disabled_vif = vif; 4591 4592 if (!fw_has_capa(&mvm->fw->ucode_capa, 4593 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 4594 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 4595 break; 4596 default: 4597 break; 4598 } 4599 4600 iwl_mvm_update_quotas(mvm, false, disabled_vif); 4601 iwl_mvm_binding_remove_vif(mvm, vif); 4602 4603 out: 4604 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) && 4605 switching_chanctx) 4606 return; 4607 mvmvif->phy_ctxt = NULL; 4608 iwl_mvm_power_update_mac(mvm); 4609 } 4610 4611 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 4612 struct ieee80211_vif *vif, 4613 struct ieee80211_chanctx_conf *ctx) 4614 { 4615 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4616 4617 mutex_lock(&mvm->mutex); 4618 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 4619 mutex_unlock(&mvm->mutex); 4620 } 4621 4622 static int 4623 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 4624 struct ieee80211_vif_chanctx_switch *vifs) 4625 { 4626 int ret; 4627 4628 mutex_lock(&mvm->mutex); 4629 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4630 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 4631 4632 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 4633 if (ret) { 4634 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 4635 goto out_reassign; 4636 } 4637 4638 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4639 true); 4640 if (ret) { 4641 IWL_ERR(mvm, 4642 "failed to assign new_ctx during channel switch\n"); 4643 goto out_remove; 4644 } 4645 4646 /* we don't support TDLS during DCM - can be caused by channel switch */ 4647 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4648 iwl_mvm_teardown_tdls_peers(mvm); 4649 4650 goto out; 4651 4652 out_remove: 4653 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 4654 4655 out_reassign: 4656 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 4657 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 4658 goto out_restart; 4659 } 4660 4661 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4662 true)) { 4663 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4664 goto out_restart; 4665 } 4666 4667 goto out; 4668 4669 out_restart: 4670 /* things keep failing, better restart the hw */ 4671 iwl_mvm_nic_restart(mvm, false); 4672 4673 out: 4674 mutex_unlock(&mvm->mutex); 4675 4676 return ret; 4677 } 4678 4679 static int 4680 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 4681 struct ieee80211_vif_chanctx_switch *vifs) 4682 { 4683 int ret; 4684 4685 mutex_lock(&mvm->mutex); 4686 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4687 4688 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4689 true); 4690 if (ret) { 4691 IWL_ERR(mvm, 4692 "failed to assign new_ctx during channel switch\n"); 4693 goto out_reassign; 4694 } 4695 4696 goto out; 4697 4698 out_reassign: 4699 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4700 true)) { 4701 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4702 goto out_restart; 4703 } 4704 4705 goto out; 4706 4707 out_restart: 4708 /* things keep failing, better restart the hw */ 4709 iwl_mvm_nic_restart(mvm, false); 4710 4711 out: 4712 mutex_unlock(&mvm->mutex); 4713 4714 return ret; 4715 } 4716 4717 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 4718 struct ieee80211_vif_chanctx_switch *vifs, 4719 int n_vifs, 4720 enum ieee80211_chanctx_switch_mode mode) 4721 { 4722 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4723 int ret; 4724 4725 /* we only support a single-vif right now */ 4726 if (n_vifs > 1) 4727 return -EOPNOTSUPP; 4728 4729 switch (mode) { 4730 case CHANCTX_SWMODE_SWAP_CONTEXTS: 4731 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 4732 break; 4733 case CHANCTX_SWMODE_REASSIGN_VIF: 4734 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 4735 break; 4736 default: 4737 ret = -EOPNOTSUPP; 4738 break; 4739 } 4740 4741 return ret; 4742 } 4743 4744 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 4745 { 4746 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4747 4748 return mvm->ibss_manager; 4749 } 4750 4751 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 4752 struct ieee80211_sta *sta, 4753 bool set) 4754 { 4755 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4756 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4757 4758 if (!mvm_sta || !mvm_sta->vif) { 4759 IWL_ERR(mvm, "Station is not associated to a vif\n"); 4760 return -EINVAL; 4761 } 4762 4763 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 4764 } 4765 4766 #ifdef CONFIG_NL80211_TESTMODE 4767 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 4768 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 4769 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 4770 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 4771 }; 4772 4773 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 4774 struct ieee80211_vif *vif, 4775 void *data, int len) 4776 { 4777 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 4778 int err; 4779 u32 noa_duration; 4780 4781 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 4782 iwl_mvm_tm_policy, NULL); 4783 if (err) 4784 return err; 4785 4786 if (!tb[IWL_MVM_TM_ATTR_CMD]) 4787 return -EINVAL; 4788 4789 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 4790 case IWL_MVM_TM_CMD_SET_NOA: 4791 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 4792 !vif->bss_conf.enable_beacon || 4793 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 4794 return -EINVAL; 4795 4796 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 4797 if (noa_duration >= vif->bss_conf.beacon_int) 4798 return -EINVAL; 4799 4800 mvm->noa_duration = noa_duration; 4801 mvm->noa_vif = vif; 4802 4803 return iwl_mvm_update_quotas(mvm, true, NULL); 4804 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 4805 /* must be associated client vif - ignore authorized */ 4806 if (!vif || vif->type != NL80211_IFTYPE_STATION || 4807 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 4808 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 4809 return -EINVAL; 4810 4811 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 4812 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4813 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4814 } 4815 4816 return -EOPNOTSUPP; 4817 } 4818 4819 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 4820 struct ieee80211_vif *vif, 4821 void *data, int len) 4822 { 4823 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4824 int err; 4825 4826 mutex_lock(&mvm->mutex); 4827 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 4828 mutex_unlock(&mvm->mutex); 4829 4830 return err; 4831 } 4832 #endif 4833 4834 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 4835 struct ieee80211_vif *vif, 4836 struct ieee80211_channel_switch *chsw) 4837 { 4838 /* By implementing this operation, we prevent mac80211 from 4839 * starting its own channel switch timer, so that we can call 4840 * ieee80211_chswitch_done() ourselves at the right time 4841 * (which is when the absence time event starts). 4842 */ 4843 4844 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 4845 "dummy channel switch op\n"); 4846 } 4847 4848 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 4849 struct ieee80211_vif *vif, 4850 struct ieee80211_channel_switch *chsw) 4851 { 4852 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4853 struct iwl_chan_switch_te_cmd cmd = { 4854 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4855 mvmvif->color)), 4856 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4857 .tsf = cpu_to_le32(chsw->timestamp), 4858 .cs_count = chsw->count, 4859 .cs_mode = chsw->block_tx, 4860 }; 4861 4862 lockdep_assert_held(&mvm->mutex); 4863 4864 if (chsw->delay) 4865 cmd.cs_delayed_bcn_count = 4866 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 4867 4868 return iwl_mvm_send_cmd_pdu(mvm, 4869 WIDE_ID(MAC_CONF_GROUP, 4870 CHANNEL_SWITCH_TIME_EVENT_CMD), 4871 0, sizeof(cmd), &cmd); 4872 } 4873 4874 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 4875 struct ieee80211_vif *vif, 4876 struct ieee80211_channel_switch *chsw) 4877 { 4878 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4879 u32 apply_time; 4880 4881 /* Schedule the time event to a bit before beacon 1, 4882 * to make sure we're in the new channel when the 4883 * GO/AP arrives. In case count <= 1 immediately schedule the 4884 * TE (this might result with some packet loss or connection 4885 * loss). 4886 */ 4887 if (chsw->count <= 1) 4888 apply_time = 0; 4889 else 4890 apply_time = chsw->device_timestamp + 4891 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 4892 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 4893 4894 if (chsw->block_tx) 4895 iwl_mvm_csa_client_absent(mvm, vif); 4896 4897 if (mvmvif->bf_data.bf_enabled) { 4898 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4899 4900 if (ret) 4901 return ret; 4902 } 4903 4904 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 4905 apply_time); 4906 4907 return 0; 4908 } 4909 4910 #define IWL_MAX_CSA_BLOCK_TX 1500 4911 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 4912 struct ieee80211_vif *vif, 4913 struct ieee80211_channel_switch *chsw) 4914 { 4915 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4916 struct ieee80211_vif *csa_vif; 4917 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4918 int ret; 4919 4920 mutex_lock(&mvm->mutex); 4921 4922 mvmvif->csa_failed = false; 4923 4924 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 4925 chsw->chandef.center_freq1); 4926 4927 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 4928 ieee80211_vif_to_wdev(vif), 4929 FW_DBG_TRIGGER_CHANNEL_SWITCH); 4930 4931 switch (vif->type) { 4932 case NL80211_IFTYPE_AP: 4933 csa_vif = 4934 rcu_dereference_protected(mvm->csa_vif, 4935 lockdep_is_held(&mvm->mutex)); 4936 if (WARN_ONCE(csa_vif && csa_vif->csa_active, 4937 "Another CSA is already in progress")) { 4938 ret = -EBUSY; 4939 goto out_unlock; 4940 } 4941 4942 /* we still didn't unblock tx. prevent new CS meanwhile */ 4943 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 4944 lockdep_is_held(&mvm->mutex))) { 4945 ret = -EBUSY; 4946 goto out_unlock; 4947 } 4948 4949 rcu_assign_pointer(mvm->csa_vif, vif); 4950 4951 if (WARN_ONCE(mvmvif->csa_countdown, 4952 "Previous CSA countdown didn't complete")) { 4953 ret = -EBUSY; 4954 goto out_unlock; 4955 } 4956 4957 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 4958 4959 break; 4960 case NL80211_IFTYPE_STATION: 4961 /* 4962 * In the new flow FW is in charge of timing the switch so there 4963 * is no need for all of this 4964 */ 4965 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 4966 CHANNEL_SWITCH_ERROR_NOTIF, 4967 0)) 4968 break; 4969 4970 /* 4971 * We haven't configured the firmware to be associated yet since 4972 * we don't know the dtim period. In this case, the firmware can't 4973 * track the beacons. 4974 */ 4975 if (!vif->bss_conf.assoc || !vif->bss_conf.dtim_period) { 4976 ret = -EBUSY; 4977 goto out_unlock; 4978 } 4979 4980 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) 4981 schedule_delayed_work(&mvmvif->csa_work, 0); 4982 4983 if (chsw->block_tx) { 4984 /* 4985 * In case of undetermined / long time with immediate 4986 * quiet monitor status to gracefully disconnect 4987 */ 4988 if (!chsw->count || 4989 chsw->count * vif->bss_conf.beacon_int > 4990 IWL_MAX_CSA_BLOCK_TX) 4991 schedule_delayed_work(&mvmvif->csa_work, 4992 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 4993 } 4994 4995 if (!fw_has_capa(&mvm->fw->ucode_capa, 4996 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4997 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 4998 if (ret) 4999 goto out_unlock; 5000 } else { 5001 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 5002 } 5003 5004 mvmvif->csa_count = chsw->count; 5005 mvmvif->csa_misbehave = false; 5006 break; 5007 default: 5008 break; 5009 } 5010 5011 mvmvif->ps_disabled = true; 5012 5013 ret = iwl_mvm_power_update_ps(mvm); 5014 if (ret) 5015 goto out_unlock; 5016 5017 /* we won't be on this channel any longer */ 5018 iwl_mvm_teardown_tdls_peers(mvm); 5019 5020 out_unlock: 5021 mutex_unlock(&mvm->mutex); 5022 5023 return ret; 5024 } 5025 5026 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 5027 struct ieee80211_vif *vif, 5028 struct ieee80211_channel_switch *chsw) 5029 { 5030 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5031 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5032 struct iwl_chan_switch_te_cmd cmd = { 5033 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 5034 mvmvif->color)), 5035 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 5036 .tsf = cpu_to_le32(chsw->timestamp), 5037 .cs_count = chsw->count, 5038 .cs_mode = chsw->block_tx, 5039 }; 5040 5041 /* 5042 * In the new flow FW is in charge of timing the switch so there is no 5043 * need for all of this 5044 */ 5045 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP, 5046 CHANNEL_SWITCH_ERROR_NOTIF, 0)) 5047 return; 5048 5049 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 5050 return; 5051 5052 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n", 5053 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx); 5054 5055 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 5056 if (mvmvif->csa_misbehave) { 5057 /* Second time, give up on this AP*/ 5058 iwl_mvm_abort_channel_switch(hw, vif); 5059 ieee80211_chswitch_done(vif, false); 5060 mvmvif->csa_misbehave = false; 5061 return; 5062 } 5063 mvmvif->csa_misbehave = true; 5064 } 5065 mvmvif->csa_count = chsw->count; 5066 5067 mutex_lock(&mvm->mutex); 5068 if (mvmvif->csa_failed) 5069 goto out_unlock; 5070 5071 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 5072 WIDE_ID(MAC_CONF_GROUP, 5073 CHANNEL_SWITCH_TIME_EVENT_CMD), 5074 0, sizeof(cmd), &cmd)); 5075 out_unlock: 5076 mutex_unlock(&mvm->mutex); 5077 } 5078 5079 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 5080 { 5081 int i; 5082 5083 if (!iwl_mvm_has_new_tx_api(mvm)) { 5084 if (drop) { 5085 mutex_lock(&mvm->mutex); 5086 iwl_mvm_flush_tx_path(mvm, 5087 iwl_mvm_flushable_queues(mvm) & queues); 5088 mutex_unlock(&mvm->mutex); 5089 } else { 5090 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 5091 } 5092 return; 5093 } 5094 5095 mutex_lock(&mvm->mutex); 5096 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5097 struct ieee80211_sta *sta; 5098 5099 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5100 lockdep_is_held(&mvm->mutex)); 5101 if (IS_ERR_OR_NULL(sta)) 5102 continue; 5103 5104 if (drop) 5105 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF); 5106 else 5107 iwl_mvm_wait_sta_queues_empty(mvm, 5108 iwl_mvm_sta_from_mac80211(sta)); 5109 } 5110 mutex_unlock(&mvm->mutex); 5111 } 5112 5113 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 5114 struct ieee80211_vif *vif, u32 queues, bool drop) 5115 { 5116 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5117 struct iwl_mvm_vif *mvmvif; 5118 struct iwl_mvm_sta *mvmsta; 5119 struct ieee80211_sta *sta; 5120 int i; 5121 u32 msk = 0; 5122 5123 if (!vif) { 5124 iwl_mvm_flush_no_vif(mvm, queues, drop); 5125 return; 5126 } 5127 5128 if (vif->type != NL80211_IFTYPE_STATION) 5129 return; 5130 5131 /* Make sure we're done with the deferred traffic before flushing */ 5132 flush_work(&mvm->add_stream_wk); 5133 5134 mutex_lock(&mvm->mutex); 5135 mvmvif = iwl_mvm_vif_from_mac80211(vif); 5136 5137 /* flush the AP-station and all TDLS peers */ 5138 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) { 5139 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 5140 lockdep_is_held(&mvm->mutex)); 5141 if (IS_ERR_OR_NULL(sta)) 5142 continue; 5143 5144 mvmsta = iwl_mvm_sta_from_mac80211(sta); 5145 if (mvmsta->vif != vif) 5146 continue; 5147 5148 /* make sure only TDLS peers or the AP are flushed */ 5149 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 5150 5151 if (drop) { 5152 if (iwl_mvm_flush_sta(mvm, mvmsta, false)) 5153 IWL_ERR(mvm, "flush request fail\n"); 5154 } else { 5155 msk |= mvmsta->tfd_queue_msk; 5156 if (iwl_mvm_has_new_tx_api(mvm)) 5157 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 5158 } 5159 } 5160 5161 mutex_unlock(&mvm->mutex); 5162 5163 /* this can take a while, and we may need/want other operations 5164 * to succeed while doing this, so do it without the mutex held 5165 */ 5166 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 5167 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 5168 } 5169 5170 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 5171 struct survey_info *survey) 5172 { 5173 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5174 int ret; 5175 5176 memset(survey, 0, sizeof(*survey)); 5177 5178 /* only support global statistics right now */ 5179 if (idx != 0) 5180 return -ENOENT; 5181 5182 if (!fw_has_capa(&mvm->fw->ucode_capa, 5183 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 5184 return -ENOENT; 5185 5186 mutex_lock(&mvm->mutex); 5187 5188 if (iwl_mvm_firmware_running(mvm)) { 5189 ret = iwl_mvm_request_statistics(mvm, false); 5190 if (ret) 5191 goto out; 5192 } 5193 5194 survey->filled = SURVEY_INFO_TIME | 5195 SURVEY_INFO_TIME_RX | 5196 SURVEY_INFO_TIME_TX | 5197 SURVEY_INFO_TIME_SCAN; 5198 survey->time = mvm->accu_radio_stats.on_time_rf + 5199 mvm->radio_stats.on_time_rf; 5200 do_div(survey->time, USEC_PER_MSEC); 5201 5202 survey->time_rx = mvm->accu_radio_stats.rx_time + 5203 mvm->radio_stats.rx_time; 5204 do_div(survey->time_rx, USEC_PER_MSEC); 5205 5206 survey->time_tx = mvm->accu_radio_stats.tx_time + 5207 mvm->radio_stats.tx_time; 5208 do_div(survey->time_tx, USEC_PER_MSEC); 5209 5210 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 5211 mvm->radio_stats.on_time_scan; 5212 do_div(survey->time_scan, USEC_PER_MSEC); 5213 5214 ret = 0; 5215 out: 5216 mutex_unlock(&mvm->mutex); 5217 return ret; 5218 } 5219 5220 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 5221 { 5222 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK; 5223 5224 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 5225 case RATE_MCS_CHAN_WIDTH_20: 5226 rinfo->bw = RATE_INFO_BW_20; 5227 break; 5228 case RATE_MCS_CHAN_WIDTH_40: 5229 rinfo->bw = RATE_INFO_BW_40; 5230 break; 5231 case RATE_MCS_CHAN_WIDTH_80: 5232 rinfo->bw = RATE_INFO_BW_80; 5233 break; 5234 case RATE_MCS_CHAN_WIDTH_160: 5235 rinfo->bw = RATE_INFO_BW_160; 5236 break; 5237 } 5238 5239 if (format == RATE_MCS_CCK_MSK || 5240 format == RATE_MCS_LEGACY_OFDM_MSK) { 5241 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK); 5242 5243 /* add the offset needed to get to the legacy ofdm indices */ 5244 if (format == RATE_MCS_LEGACY_OFDM_MSK) 5245 rate += IWL_FIRST_OFDM_RATE; 5246 5247 switch (rate) { 5248 case IWL_RATE_1M_INDEX: 5249 rinfo->legacy = 10; 5250 break; 5251 case IWL_RATE_2M_INDEX: 5252 rinfo->legacy = 20; 5253 break; 5254 case IWL_RATE_5M_INDEX: 5255 rinfo->legacy = 55; 5256 break; 5257 case IWL_RATE_11M_INDEX: 5258 rinfo->legacy = 110; 5259 break; 5260 case IWL_RATE_6M_INDEX: 5261 rinfo->legacy = 60; 5262 break; 5263 case IWL_RATE_9M_INDEX: 5264 rinfo->legacy = 90; 5265 break; 5266 case IWL_RATE_12M_INDEX: 5267 rinfo->legacy = 120; 5268 break; 5269 case IWL_RATE_18M_INDEX: 5270 rinfo->legacy = 180; 5271 break; 5272 case IWL_RATE_24M_INDEX: 5273 rinfo->legacy = 240; 5274 break; 5275 case IWL_RATE_36M_INDEX: 5276 rinfo->legacy = 360; 5277 break; 5278 case IWL_RATE_48M_INDEX: 5279 rinfo->legacy = 480; 5280 break; 5281 case IWL_RATE_54M_INDEX: 5282 rinfo->legacy = 540; 5283 } 5284 return; 5285 } 5286 5287 rinfo->nss = u32_get_bits(rate_n_flags, 5288 RATE_MCS_NSS_MSK) + 1; 5289 rinfo->mcs = format == RATE_MCS_HT_MSK ? 5290 RATE_HT_MCS_INDEX(rate_n_flags) : 5291 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK); 5292 5293 if (format == RATE_MCS_HE_MSK) { 5294 u32 gi_ltf = u32_get_bits(rate_n_flags, 5295 RATE_MCS_HE_GI_LTF_MSK); 5296 5297 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 5298 5299 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 5300 rinfo->bw = RATE_INFO_BW_HE_RU; 5301 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 5302 } 5303 5304 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 5305 case RATE_MCS_HE_TYPE_SU: 5306 case RATE_MCS_HE_TYPE_EXT_SU: 5307 if (gi_ltf == 0 || gi_ltf == 1) 5308 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5309 else if (gi_ltf == 2) 5310 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5311 else if (gi_ltf == 3) 5312 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5313 else 5314 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5315 break; 5316 case RATE_MCS_HE_TYPE_MU: 5317 if (gi_ltf == 0 || gi_ltf == 1) 5318 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 5319 else if (gi_ltf == 2) 5320 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5321 else 5322 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5323 break; 5324 case RATE_MCS_HE_TYPE_TRIG: 5325 if (gi_ltf == 0 || gi_ltf == 1) 5326 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 5327 else 5328 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 5329 break; 5330 } 5331 5332 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 5333 rinfo->he_dcm = 1; 5334 return; 5335 } 5336 5337 if (rate_n_flags & RATE_MCS_SGI_MSK) 5338 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 5339 5340 if (format == RATE_MCS_HT_MSK) { 5341 rinfo->flags |= RATE_INFO_FLAGS_MCS; 5342 5343 } else if (format == RATE_MCS_VHT_MSK) { 5344 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 5345 } 5346 5347 } 5348 5349 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 5350 struct ieee80211_vif *vif, 5351 struct ieee80211_sta *sta, 5352 struct station_info *sinfo) 5353 { 5354 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5355 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5356 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 5357 5358 if (mvmsta->avg_energy) { 5359 sinfo->signal_avg = -(s8)mvmsta->avg_energy; 5360 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 5361 } 5362 5363 if (iwl_mvm_has_tlc_offload(mvm)) { 5364 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 5365 5366 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 5367 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 5368 } 5369 5370 /* if beacon filtering isn't on mac80211 does it anyway */ 5371 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 5372 return; 5373 5374 if (!vif->bss_conf.assoc) 5375 return; 5376 5377 mutex_lock(&mvm->mutex); 5378 5379 if (mvmvif->ap_sta_id != mvmsta->sta_id) 5380 goto unlock; 5381 5382 if (iwl_mvm_request_statistics(mvm, false)) 5383 goto unlock; 5384 5385 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 5386 mvmvif->beacon_stats.accu_num_beacons; 5387 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 5388 if (mvmvif->beacon_stats.avg_signal) { 5389 /* firmware only reports a value after RXing a few beacons */ 5390 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 5391 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 5392 } 5393 unlock: 5394 mutex_unlock(&mvm->mutex); 5395 } 5396 5397 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm, 5398 struct ieee80211_vif *vif, 5399 const struct ieee80211_mlme_event *mlme) 5400 { 5401 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) && 5402 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) { 5403 iwl_dbg_tlv_time_point(&mvm->fwrt, 5404 IWL_FW_INI_TIME_POINT_ASSOC_FAILED, 5405 NULL); 5406 return; 5407 } 5408 5409 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) { 5410 iwl_dbg_tlv_time_point(&mvm->fwrt, 5411 IWL_FW_INI_TIME_POINT_DEASSOC, 5412 NULL); 5413 return; 5414 } 5415 } 5416 5417 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 5418 struct ieee80211_vif *vif, 5419 const struct ieee80211_event *event) 5420 { 5421 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 5422 do { \ 5423 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 5424 break; \ 5425 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 5426 } while (0) 5427 5428 struct iwl_fw_dbg_trigger_tlv *trig; 5429 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 5430 5431 if (iwl_trans_dbg_ini_valid(mvm->trans)) { 5432 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme); 5433 return; 5434 } 5435 5436 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5437 FW_DBG_TRIGGER_MLME); 5438 if (!trig) 5439 return; 5440 5441 trig_mlme = (void *)trig->data; 5442 5443 if (event->u.mlme.data == ASSOC_EVENT) { 5444 if (event->u.mlme.status == MLME_DENIED) 5445 CHECK_MLME_TRIGGER(stop_assoc_denied, 5446 "DENIED ASSOC: reason %d", 5447 event->u.mlme.reason); 5448 else if (event->u.mlme.status == MLME_TIMEOUT) 5449 CHECK_MLME_TRIGGER(stop_assoc_timeout, 5450 "ASSOC TIMEOUT"); 5451 } else if (event->u.mlme.data == AUTH_EVENT) { 5452 if (event->u.mlme.status == MLME_DENIED) 5453 CHECK_MLME_TRIGGER(stop_auth_denied, 5454 "DENIED AUTH: reason %d", 5455 event->u.mlme.reason); 5456 else if (event->u.mlme.status == MLME_TIMEOUT) 5457 CHECK_MLME_TRIGGER(stop_auth_timeout, 5458 "AUTH TIMEOUT"); 5459 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 5460 CHECK_MLME_TRIGGER(stop_rx_deauth, 5461 "DEAUTH RX %d", event->u.mlme.reason); 5462 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 5463 CHECK_MLME_TRIGGER(stop_tx_deauth, 5464 "DEAUTH TX %d", event->u.mlme.reason); 5465 } 5466 #undef CHECK_MLME_TRIGGER 5467 } 5468 5469 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 5470 struct ieee80211_vif *vif, 5471 const struct ieee80211_event *event) 5472 { 5473 struct iwl_fw_dbg_trigger_tlv *trig; 5474 struct iwl_fw_dbg_trigger_ba *ba_trig; 5475 5476 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5477 FW_DBG_TRIGGER_BA); 5478 if (!trig) 5479 return; 5480 5481 ba_trig = (void *)trig->data; 5482 5483 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5484 return; 5485 5486 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5487 "BAR received from %pM, tid %d, ssn %d", 5488 event->u.ba.sta->addr, event->u.ba.tid, 5489 event->u.ba.ssn); 5490 } 5491 5492 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5493 struct ieee80211_vif *vif, 5494 const struct ieee80211_event *event) 5495 { 5496 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5497 5498 switch (event->type) { 5499 case MLME_EVENT: 5500 iwl_mvm_event_mlme_callback(mvm, vif, event); 5501 break; 5502 case BAR_RX_EVENT: 5503 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5504 break; 5505 case BA_FRAME_TIMEOUT: 5506 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5507 event->u.ba.tid); 5508 break; 5509 default: 5510 break; 5511 } 5512 } 5513 5514 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5515 enum iwl_mvm_rxq_notif_type type, 5516 bool sync, 5517 const void *data, u32 size) 5518 { 5519 struct { 5520 struct iwl_rxq_sync_cmd cmd; 5521 struct iwl_mvm_internal_rxq_notif notif; 5522 } __packed cmd = { 5523 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1), 5524 .cmd.count = 5525 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) + 5526 size), 5527 .notif.type = type, 5528 .notif.sync = sync, 5529 }; 5530 struct iwl_host_cmd hcmd = { 5531 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 5532 .data[0] = &cmd, 5533 .len[0] = sizeof(cmd), 5534 .data[1] = data, 5535 .len[1] = size, 5536 .flags = sync ? 0 : CMD_ASYNC, 5537 }; 5538 int ret; 5539 5540 /* size must be a multiple of DWORD */ 5541 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3))) 5542 return; 5543 5544 if (!iwl_mvm_has_new_rx_api(mvm)) 5545 return; 5546 5547 if (sync) { 5548 cmd.notif.cookie = mvm->queue_sync_cookie; 5549 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1; 5550 } 5551 5552 ret = iwl_mvm_send_cmd(mvm, &hcmd); 5553 if (ret) { 5554 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 5555 goto out; 5556 } 5557 5558 if (sync) { 5559 lockdep_assert_held(&mvm->mutex); 5560 ret = wait_event_timeout(mvm->rx_sync_waitq, 5561 READ_ONCE(mvm->queue_sync_state) == 0 || 5562 iwl_mvm_is_radio_killed(mvm), 5563 HZ); 5564 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm), 5565 "queue sync: failed to sync, state is 0x%lx\n", 5566 mvm->queue_sync_state); 5567 } 5568 5569 out: 5570 if (sync) { 5571 mvm->queue_sync_state = 0; 5572 mvm->queue_sync_cookie++; 5573 } 5574 } 5575 5576 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 5577 { 5578 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5579 5580 mutex_lock(&mvm->mutex); 5581 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0); 5582 mutex_unlock(&mvm->mutex); 5583 } 5584 5585 static int 5586 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 5587 struct ieee80211_vif *vif, 5588 struct cfg80211_ftm_responder_stats *stats) 5589 { 5590 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5591 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5592 5593 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 5594 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 5595 return -EINVAL; 5596 5597 mutex_lock(&mvm->mutex); 5598 *stats = mvm->ftm_resp_stats; 5599 mutex_unlock(&mvm->mutex); 5600 5601 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 5602 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 5603 BIT(NL80211_FTM_STATS_FAILED_NUM) | 5604 BIT(NL80211_FTM_STATS_ASAP_NUM) | 5605 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 5606 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 5607 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 5608 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 5609 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 5610 5611 return 0; 5612 } 5613 5614 static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, 5615 struct ieee80211_vif *vif, 5616 struct cfg80211_pmsr_request *request) 5617 { 5618 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5619 int ret; 5620 5621 mutex_lock(&mvm->mutex); 5622 ret = iwl_mvm_ftm_start(mvm, vif, request); 5623 mutex_unlock(&mvm->mutex); 5624 5625 return ret; 5626 } 5627 5628 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, 5629 struct ieee80211_vif *vif, 5630 struct cfg80211_pmsr_request *request) 5631 { 5632 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5633 5634 mutex_lock(&mvm->mutex); 5635 iwl_mvm_ftm_abort(mvm, request); 5636 mutex_unlock(&mvm->mutex); 5637 } 5638 5639 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 5640 { 5641 u8 protocol = ip_hdr(skb)->protocol; 5642 5643 if (!IS_ENABLED(CONFIG_INET)) 5644 return false; 5645 5646 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 5647 } 5648 5649 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 5650 struct sk_buff *head, 5651 struct sk_buff *skb) 5652 { 5653 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5654 5655 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 5656 return iwl_mvm_tx_csum_bz(mvm, head, true) == 5657 iwl_mvm_tx_csum_bz(mvm, skb, true); 5658 5659 /* For now don't aggregate IPv6 in AMSDU */ 5660 if (skb->protocol != htons(ETH_P_IP)) 5661 return false; 5662 5663 if (!iwl_mvm_is_csum_supported(mvm)) 5664 return true; 5665 5666 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 5667 } 5668 5669 const struct ieee80211_ops iwl_mvm_hw_ops = { 5670 .tx = iwl_mvm_mac_tx, 5671 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 5672 .ampdu_action = iwl_mvm_mac_ampdu_action, 5673 .get_antenna = iwl_mvm_op_get_antenna, 5674 .start = iwl_mvm_mac_start, 5675 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 5676 .stop = iwl_mvm_mac_stop, 5677 .add_interface = iwl_mvm_mac_add_interface, 5678 .remove_interface = iwl_mvm_mac_remove_interface, 5679 .config = iwl_mvm_mac_config, 5680 .prepare_multicast = iwl_mvm_prepare_multicast, 5681 .configure_filter = iwl_mvm_configure_filter, 5682 .config_iface_filter = iwl_mvm_config_iface_filter, 5683 .bss_info_changed = iwl_mvm_bss_info_changed, 5684 .hw_scan = iwl_mvm_mac_hw_scan, 5685 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 5686 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 5687 .sta_state = iwl_mvm_mac_sta_state, 5688 .sta_notify = iwl_mvm_mac_sta_notify, 5689 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 5690 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 5691 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 5692 .sta_rc_update = iwl_mvm_sta_rc_update, 5693 .conf_tx = iwl_mvm_mac_conf_tx, 5694 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 5695 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx, 5696 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 5697 .flush = iwl_mvm_mac_flush, 5698 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 5699 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 5700 .set_key = iwl_mvm_mac_set_key, 5701 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 5702 .remain_on_channel = iwl_mvm_roc, 5703 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 5704 .add_chanctx = iwl_mvm_add_chanctx, 5705 .remove_chanctx = iwl_mvm_remove_chanctx, 5706 .change_chanctx = iwl_mvm_change_chanctx, 5707 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 5708 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 5709 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 5710 5711 .start_ap = iwl_mvm_start_ap_ibss, 5712 .stop_ap = iwl_mvm_stop_ap_ibss, 5713 .join_ibss = iwl_mvm_start_ap_ibss, 5714 .leave_ibss = iwl_mvm_stop_ap_ibss, 5715 5716 .tx_last_beacon = iwl_mvm_tx_last_beacon, 5717 5718 .set_tim = iwl_mvm_set_tim, 5719 5720 .channel_switch = iwl_mvm_channel_switch, 5721 .pre_channel_switch = iwl_mvm_pre_channel_switch, 5722 .post_channel_switch = iwl_mvm_post_channel_switch, 5723 .abort_channel_switch = iwl_mvm_abort_channel_switch, 5724 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 5725 5726 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 5727 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 5728 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 5729 5730 .event_callback = iwl_mvm_mac_event_callback, 5731 5732 .sync_rx_queues = iwl_mvm_sync_rx_queues, 5733 5734 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 5735 5736 #ifdef CONFIG_PM_SLEEP 5737 /* look at d3.c */ 5738 .suspend = iwl_mvm_suspend, 5739 .resume = iwl_mvm_resume, 5740 .set_wakeup = iwl_mvm_set_wakeup, 5741 .set_rekey_data = iwl_mvm_set_rekey_data, 5742 #if IS_ENABLED(CONFIG_IPV6) 5743 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 5744 #endif 5745 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 5746 #endif 5747 .get_survey = iwl_mvm_mac_get_survey, 5748 .sta_statistics = iwl_mvm_mac_sta_statistics, 5749 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 5750 .start_pmsr = iwl_mvm_start_pmsr, 5751 .abort_pmsr = iwl_mvm_abort_pmsr, 5752 5753 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 5754 #ifdef CONFIG_IWLWIFI_DEBUGFS 5755 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 5756 #endif 5757 }; 5758