1 /****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 9 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 10 * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * The full GNU General Public License is included in this distribution 22 * in the file called COPYING. 23 * 24 * Contact Information: 25 * Intel Linux Wireless <linuxwifi@intel.com> 26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 27 * 28 * BSD LICENSE 29 * 30 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH 31 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH 32 * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation 33 * All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 39 * * Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * * Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in 43 * the documentation and/or other materials provided with the 44 * distribution. 45 * * Neither the name Intel Corporation nor the names of its 46 * contributors may be used to endorse or promote products derived 47 * from this software without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 50 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 51 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 52 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 53 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 54 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 55 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 * 61 *****************************************************************************/ 62 #include <linux/kernel.h> 63 #include <linux/slab.h> 64 #include <linux/skbuff.h> 65 #include <linux/netdevice.h> 66 #include <linux/etherdevice.h> 67 #include <linux/ip.h> 68 #include <linux/if_arp.h> 69 #include <linux/time.h> 70 #include <net/mac80211.h> 71 #include <net/ieee80211_radiotap.h> 72 #include <net/tcp.h> 73 74 #include "iwl-op-mode.h" 75 #include "iwl-io.h" 76 #include "mvm.h" 77 #include "sta.h" 78 #include "time-event.h" 79 #include "iwl-eeprom-parse.h" 80 #include "iwl-phy-db.h" 81 #include "testmode.h" 82 #include "fw/error-dump.h" 83 #include "iwl-prph.h" 84 #include "iwl-nvm-parse.h" 85 86 static const struct ieee80211_iface_limit iwl_mvm_limits[] = { 87 { 88 .max = 1, 89 .types = BIT(NL80211_IFTYPE_STATION), 90 }, 91 { 92 .max = 1, 93 .types = BIT(NL80211_IFTYPE_AP) | 94 BIT(NL80211_IFTYPE_P2P_CLIENT) | 95 BIT(NL80211_IFTYPE_P2P_GO), 96 }, 97 { 98 .max = 1, 99 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 100 }, 101 }; 102 103 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { 104 { 105 .num_different_channels = 2, 106 .max_interfaces = 3, 107 .limits = iwl_mvm_limits, 108 .n_limits = ARRAY_SIZE(iwl_mvm_limits), 109 }, 110 }; 111 112 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 113 /* 114 * Use the reserved field to indicate magic values. 115 * these values will only be used internally by the driver, 116 * and won't make it to the fw (reserved will be 0). 117 * BC_FILTER_MAGIC_IP - configure the val of this attribute to 118 * be the vif's ip address. in case there is not a single 119 * ip address (0, or more than 1), this attribute will 120 * be skipped. 121 * BC_FILTER_MAGIC_MAC - set the val of this attribute to 122 * the LSB bytes of the vif's mac address 123 */ 124 enum { 125 BC_FILTER_MAGIC_NONE = 0, 126 BC_FILTER_MAGIC_IP, 127 BC_FILTER_MAGIC_MAC, 128 }; 129 130 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { 131 { 132 /* arp */ 133 .discard = 0, 134 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, 135 .attrs = { 136 { 137 /* frame type - arp, hw type - ethernet */ 138 .offset_type = 139 BCAST_FILTER_OFFSET_PAYLOAD_START, 140 .offset = sizeof(rfc1042_header), 141 .val = cpu_to_be32(0x08060001), 142 .mask = cpu_to_be32(0xffffffff), 143 }, 144 { 145 /* arp dest ip */ 146 .offset_type = 147 BCAST_FILTER_OFFSET_PAYLOAD_START, 148 .offset = sizeof(rfc1042_header) + 2 + 149 sizeof(struct arphdr) + 150 ETH_ALEN + sizeof(__be32) + 151 ETH_ALEN, 152 .mask = cpu_to_be32(0xffffffff), 153 /* mark it as special field */ 154 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), 155 }, 156 }, 157 }, 158 { 159 /* dhcp offer bcast */ 160 .discard = 0, 161 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, 162 .attrs = { 163 { 164 /* udp dest port - 68 (bootp client)*/ 165 .offset_type = BCAST_FILTER_OFFSET_IP_END, 166 .offset = offsetof(struct udphdr, dest), 167 .val = cpu_to_be32(0x00440000), 168 .mask = cpu_to_be32(0xffff0000), 169 }, 170 { 171 /* dhcp - lsb bytes of client hw address */ 172 .offset_type = BCAST_FILTER_OFFSET_IP_END, 173 .offset = 38, 174 .mask = cpu_to_be32(0xffffffff), 175 /* mark it as special field */ 176 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), 177 }, 178 }, 179 }, 180 /* last filter must be empty */ 181 {}, 182 }; 183 #endif 184 185 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = { 186 .max_peers = IWL_MVM_TOF_MAX_APS, 187 .report_ap_tsf = 1, 188 .randomize_mac_addr = 1, 189 190 .ftm = { 191 .supported = 1, 192 .asap = 1, 193 .non_asap = 1, 194 .request_lci = 1, 195 .request_civicloc = 1, 196 .trigger_based = 1, 197 .non_trigger_based = 1, 198 .max_bursts_exponent = -1, /* all supported */ 199 .max_ftms_per_burst = 0, /* no limits */ 200 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 201 BIT(NL80211_CHAN_WIDTH_20) | 202 BIT(NL80211_CHAN_WIDTH_40) | 203 BIT(NL80211_CHAN_WIDTH_80), 204 .preambles = BIT(NL80211_PREAMBLE_LEGACY) | 205 BIT(NL80211_PREAMBLE_HT) | 206 BIT(NL80211_PREAMBLE_VHT) | 207 BIT(NL80211_PREAMBLE_HE), 208 }, 209 }; 210 211 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 212 enum set_key_cmd cmd, 213 struct ieee80211_vif *vif, 214 struct ieee80211_sta *sta, 215 struct ieee80211_key_conf *key); 216 217 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) 218 { 219 int i; 220 221 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); 222 for (i = 0; i < NUM_PHY_CTX; i++) { 223 mvm->phy_ctxts[i].id = i; 224 mvm->phy_ctxts[i].ref = 0; 225 } 226 } 227 228 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, 229 const char *alpha2, 230 enum iwl_mcc_source src_id, 231 bool *changed) 232 { 233 struct ieee80211_regdomain *regd = NULL; 234 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 235 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 236 struct iwl_mcc_update_resp *resp; 237 238 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); 239 240 lockdep_assert_held(&mvm->mutex); 241 242 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); 243 if (IS_ERR_OR_NULL(resp)) { 244 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", 245 PTR_ERR_OR_ZERO(resp)); 246 goto out; 247 } 248 249 if (changed) { 250 u32 status = le32_to_cpu(resp->status); 251 252 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE || 253 status == MCC_RESP_ILLEGAL); 254 } 255 256 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, 257 __le32_to_cpu(resp->n_channels), 258 resp->channels, 259 __le16_to_cpu(resp->mcc), 260 __le16_to_cpu(resp->geo_info), 261 __le16_to_cpu(resp->cap)); 262 /* Store the return source id */ 263 src_id = resp->source_id; 264 kfree(resp); 265 if (IS_ERR_OR_NULL(regd)) { 266 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", 267 PTR_ERR_OR_ZERO(regd)); 268 goto out; 269 } 270 271 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", 272 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); 273 mvm->lar_regdom_set = true; 274 mvm->mcc_src = src_id; 275 276 out: 277 return regd; 278 } 279 280 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) 281 { 282 bool changed; 283 struct ieee80211_regdomain *regd; 284 285 if (!iwl_mvm_is_lar_supported(mvm)) 286 return; 287 288 regd = iwl_mvm_get_current_regdomain(mvm, &changed); 289 if (!IS_ERR_OR_NULL(regd)) { 290 /* only update the regulatory core if changed */ 291 if (changed) 292 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); 293 294 kfree(regd); 295 } 296 } 297 298 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, 299 bool *changed) 300 { 301 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", 302 iwl_mvm_is_wifi_mcc_supported(mvm) ? 303 MCC_SOURCE_GET_CURRENT : 304 MCC_SOURCE_OLD_FW, changed); 305 } 306 307 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) 308 { 309 enum iwl_mcc_source used_src; 310 struct ieee80211_regdomain *regd; 311 int ret; 312 bool changed; 313 const struct ieee80211_regdomain *r = 314 rtnl_dereference(mvm->hw->wiphy->regd); 315 316 if (!r) 317 return -ENOENT; 318 319 /* save the last source in case we overwrite it below */ 320 used_src = mvm->mcc_src; 321 if (iwl_mvm_is_wifi_mcc_supported(mvm)) { 322 /* Notify the firmware we support wifi location updates */ 323 regd = iwl_mvm_get_current_regdomain(mvm, NULL); 324 if (!IS_ERR_OR_NULL(regd)) 325 kfree(regd); 326 } 327 328 /* Now set our last stored MCC and source */ 329 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, 330 &changed); 331 if (IS_ERR_OR_NULL(regd)) 332 return -EIO; 333 334 /* update cfg80211 if the regdomain was changed */ 335 if (changed) 336 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); 337 else 338 ret = 0; 339 340 kfree(regd); 341 return ret; 342 } 343 344 static const u8 he_if_types_ext_capa_sta[] = { 345 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING, 346 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT, 347 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF, 348 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT, 349 }; 350 351 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = { 352 { 353 .iftype = NL80211_IFTYPE_STATION, 354 .extended_capabilities = he_if_types_ext_capa_sta, 355 .extended_capabilities_mask = he_if_types_ext_capa_sta, 356 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta), 357 }, 358 }; 359 360 static int 361 iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) 362 { 363 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 364 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm); 365 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm); 366 return 0; 367 } 368 369 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) 370 { 371 struct ieee80211_hw *hw = mvm->hw; 372 int num_mac, ret, i; 373 static const u32 mvm_ciphers[] = { 374 WLAN_CIPHER_SUITE_WEP40, 375 WLAN_CIPHER_SUITE_WEP104, 376 WLAN_CIPHER_SUITE_TKIP, 377 WLAN_CIPHER_SUITE_CCMP, 378 }; 379 #ifdef CONFIG_PM_SLEEP 380 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 381 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 382 #endif 383 384 /* Tell mac80211 our characteristics */ 385 ieee80211_hw_set(hw, SIGNAL_DBM); 386 ieee80211_hw_set(hw, SPECTRUM_MGMT); 387 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); 388 ieee80211_hw_set(hw, WANT_MONITOR_VIF); 389 ieee80211_hw_set(hw, SUPPORTS_PS); 390 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 391 ieee80211_hw_set(hw, AMPDU_AGGREGATION); 392 ieee80211_hw_set(hw, TIMING_BEACON_ONLY); 393 ieee80211_hw_set(hw, CONNECTION_MONITOR); 394 ieee80211_hw_set(hw, CHANCTX_STA_CSA); 395 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); 396 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); 397 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); 398 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); 399 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP); 400 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); 401 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ); 402 ieee80211_hw_set(hw, STA_MMPDU_TXQ); 403 /* 404 * On older devices, enabling TX A-MSDU occasionally leads to 405 * something getting messed up, the command read from the FIFO 406 * gets out of sync and isn't a TX command, so that we have an 407 * assert EDC. 408 * 409 * It's not clear where the bug is, but since we didn't used to 410 * support A-MSDU until moving the mac80211 iTXQs, just leave it 411 * for older devices. We also don't see this issue on any newer 412 * devices. 413 */ 414 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000) 415 ieee80211_hw_set(hw, TX_AMSDU); 416 ieee80211_hw_set(hw, TX_FRAG_LIST); 417 418 if (iwl_mvm_has_tlc_offload(mvm)) { 419 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); 420 ieee80211_hw_set(hw, HAS_RATE_CONTROL); 421 } 422 423 if (iwl_mvm_has_new_rx_api(mvm)) 424 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); 425 426 if (fw_has_capa(&mvm->fw->ucode_capa, 427 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { 428 ieee80211_hw_set(hw, AP_LINK_PS); 429 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { 430 /* 431 * we absolutely need this for the new TX API since that comes 432 * with many more queues than the current code can deal with 433 * for station powersave 434 */ 435 return -EINVAL; 436 } 437 438 if (mvm->trans->num_rx_queues > 1) 439 ieee80211_hw_set(hw, USES_RSS); 440 441 if (mvm->trans->max_skb_frags) 442 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; 443 444 hw->queues = IEEE80211_MAX_QUEUES; 445 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; 446 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | 447 IEEE80211_RADIOTAP_MCS_HAVE_STBC; 448 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | 449 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; 450 451 hw->radiotap_timestamp.units_pos = 452 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | 453 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; 454 /* this is the case for CCK frames, it's better (only 8) for OFDM */ 455 hw->radiotap_timestamp.accuracy = 22; 456 457 if (!iwl_mvm_has_tlc_offload(mvm)) 458 hw->rate_control_algorithm = RS_NAME; 459 460 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; 461 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; 462 hw->max_tx_fragments = mvm->trans->max_skb_frags; 463 464 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); 465 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); 466 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); 467 hw->wiphy->cipher_suites = mvm->ciphers; 468 469 if (iwl_mvm_has_new_rx_api(mvm)) { 470 mvm->ciphers[hw->wiphy->n_cipher_suites] = 471 WLAN_CIPHER_SUITE_GCMP; 472 hw->wiphy->n_cipher_suites++; 473 mvm->ciphers[hw->wiphy->n_cipher_suites] = 474 WLAN_CIPHER_SUITE_GCMP_256; 475 hw->wiphy->n_cipher_suites++; 476 } 477 478 /* Enable 11w if software crypto is not enabled (as the 479 * firmware will interpret some mgmt packets, so enabling it 480 * with software crypto isn't safe). 481 */ 482 if (!iwlwifi_mod_params.swcrypto) { 483 ieee80211_hw_set(hw, MFP_CAPABLE); 484 mvm->ciphers[hw->wiphy->n_cipher_suites] = 485 WLAN_CIPHER_SUITE_AES_CMAC; 486 hw->wiphy->n_cipher_suites++; 487 if (iwl_mvm_has_new_rx_api(mvm)) { 488 mvm->ciphers[hw->wiphy->n_cipher_suites] = 489 WLAN_CIPHER_SUITE_BIP_GMAC_128; 490 hw->wiphy->n_cipher_suites++; 491 mvm->ciphers[hw->wiphy->n_cipher_suites] = 492 WLAN_CIPHER_SUITE_BIP_GMAC_256; 493 hw->wiphy->n_cipher_suites++; 494 } 495 } 496 497 /* currently FW API supports only one optional cipher scheme */ 498 if (mvm->fw->cs[0].cipher) { 499 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; 500 struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; 501 502 mvm->hw->n_cipher_schemes = 1; 503 504 cs->cipher = le32_to_cpu(fwcs->cipher); 505 cs->iftype = BIT(NL80211_IFTYPE_STATION); 506 cs->hdr_len = fwcs->hdr_len; 507 cs->pn_len = fwcs->pn_len; 508 cs->pn_off = fwcs->pn_off; 509 cs->key_idx_off = fwcs->key_idx_off; 510 cs->key_idx_mask = fwcs->key_idx_mask; 511 cs->key_idx_shift = fwcs->key_idx_shift; 512 cs->mic_len = fwcs->mic_len; 513 514 mvm->hw->cipher_schemes = mvm->cs; 515 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; 516 hw->wiphy->n_cipher_suites++; 517 } 518 519 if (fw_has_capa(&mvm->fw->ucode_capa, 520 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) { 521 wiphy_ext_feature_set(hw->wiphy, 522 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER); 523 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa; 524 } 525 526 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); 527 hw->wiphy->features |= 528 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 529 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 530 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 531 532 hw->sta_data_size = sizeof(struct iwl_mvm_sta); 533 hw->vif_data_size = sizeof(struct iwl_mvm_vif); 534 hw->chanctx_data_size = sizeof(u16); 535 hw->txq_data_size = sizeof(struct iwl_mvm_txq); 536 537 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 538 BIT(NL80211_IFTYPE_P2P_CLIENT) | 539 BIT(NL80211_IFTYPE_AP) | 540 BIT(NL80211_IFTYPE_P2P_GO) | 541 BIT(NL80211_IFTYPE_P2P_DEVICE) | 542 BIT(NL80211_IFTYPE_ADHOC); 543 544 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; 545 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS); 546 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS; 547 548 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 549 if (iwl_mvm_is_lar_supported(mvm)) 550 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 551 else 552 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 553 REGULATORY_DISABLE_BEACON_HINTS; 554 555 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 556 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; 557 558 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; 559 hw->wiphy->n_iface_combinations = 560 ARRAY_SIZE(iwl_mvm_iface_combinations); 561 562 hw->wiphy->max_remain_on_channel_duration = 10000; 563 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; 564 565 /* Extract MAC address */ 566 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); 567 hw->wiphy->addresses = mvm->addresses; 568 hw->wiphy->n_addresses = 1; 569 570 /* Extract additional MAC addresses if available */ 571 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? 572 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; 573 574 for (i = 1; i < num_mac; i++) { 575 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, 576 ETH_ALEN); 577 mvm->addresses[i].addr[5]++; 578 hw->wiphy->n_addresses++; 579 } 580 581 iwl_mvm_reset_phy_ctxts(mvm); 582 583 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); 584 585 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; 586 587 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); 588 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || 589 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); 590 591 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 592 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; 593 else 594 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; 595 596 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) 597 hw->wiphy->bands[NL80211_BAND_2GHZ] = 598 &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; 599 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { 600 hw->wiphy->bands[NL80211_BAND_5GHZ] = 601 &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; 602 603 if (fw_has_capa(&mvm->fw->ucode_capa, 604 IWL_UCODE_TLV_CAPA_BEAMFORMER) && 605 fw_has_api(&mvm->fw->ucode_capa, 606 IWL_UCODE_TLV_API_LQ_SS_PARAMS)) 607 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= 608 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; 609 } 610 611 hw->wiphy->hw_version = mvm->trans->hw_id; 612 613 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) 614 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 615 else 616 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 617 618 hw->wiphy->max_sched_scan_reqs = 1; 619 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; 620 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw); 621 /* we create the 802.11 header and zero length SSID IE. */ 622 hw->wiphy->max_sched_scan_ie_len = 623 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; 624 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; 625 hw->wiphy->max_sched_scan_plan_interval = U16_MAX; 626 627 /* 628 * the firmware uses u8 for num of iterations, but 0xff is saved for 629 * infinite loop, so the maximum number of iterations is actually 254. 630 */ 631 hw->wiphy->max_sched_scan_plan_iterations = 254; 632 633 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | 634 NL80211_FEATURE_LOW_PRIORITY_SCAN | 635 NL80211_FEATURE_P2P_GO_OPPPS | 636 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | 637 NL80211_FEATURE_DYNAMIC_SMPS | 638 NL80211_FEATURE_STATIC_SMPS | 639 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; 640 641 if (fw_has_capa(&mvm->fw->ucode_capa, 642 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) 643 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; 644 if (fw_has_capa(&mvm->fw->ucode_capa, 645 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) 646 hw->wiphy->features |= NL80211_FEATURE_QUIET; 647 648 if (fw_has_capa(&mvm->fw->ucode_capa, 649 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) 650 hw->wiphy->features |= 651 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; 652 653 if (fw_has_capa(&mvm->fw->ucode_capa, 654 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) 655 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; 656 657 if (fw_has_api(&mvm->fw->ucode_capa, 658 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { 659 wiphy_ext_feature_set(hw->wiphy, 660 NL80211_EXT_FEATURE_SCAN_START_TIME); 661 wiphy_ext_feature_set(hw->wiphy, 662 NL80211_EXT_FEATURE_BSS_PARENT_TSF); 663 wiphy_ext_feature_set(hw->wiphy, 664 NL80211_EXT_FEATURE_SET_SCAN_DWELL); 665 } 666 667 if (iwl_mvm_is_oce_supported(mvm)) { 668 wiphy_ext_feature_set(hw->wiphy, 669 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP); 670 wiphy_ext_feature_set(hw->wiphy, 671 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME); 672 wiphy_ext_feature_set(hw->wiphy, 673 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION); 674 wiphy_ext_feature_set(hw->wiphy, 675 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE); 676 } 677 678 if (mvm->nvm_data->sku_cap_11ax_enable && 679 !iwlwifi_mod_params.disable_11ax) { 680 hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa; 681 hw->wiphy->num_iftype_ext_capab = 682 ARRAY_SIZE(he_iftypes_ext_capa); 683 684 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); 685 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID); 686 } 687 688 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 689 690 #ifdef CONFIG_PM_SLEEP 691 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) && 692 mvm->trans->ops->d3_suspend && 693 mvm->trans->ops->d3_resume && 694 device_can_wakeup(mvm->trans->dev)) { 695 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | 696 WIPHY_WOWLAN_DISCONNECT | 697 WIPHY_WOWLAN_EAP_IDENTITY_REQ | 698 WIPHY_WOWLAN_RFKILL_RELEASE | 699 WIPHY_WOWLAN_NET_DETECT; 700 if (!iwlwifi_mod_params.swcrypto) 701 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 702 WIPHY_WOWLAN_GTK_REKEY_FAILURE | 703 WIPHY_WOWLAN_4WAY_HANDSHAKE; 704 705 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; 706 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; 707 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; 708 mvm->wowlan.max_nd_match_sets = 709 iwl_umac_scan_get_max_profiles(mvm->fw); 710 hw->wiphy->wowlan = &mvm->wowlan; 711 } 712 #endif 713 714 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 715 /* assign default bcast filtering configuration */ 716 mvm->bcast_filters = iwl_mvm_default_bcast_filters; 717 #endif 718 719 ret = iwl_mvm_leds_init(mvm); 720 if (ret) 721 return ret; 722 723 if (fw_has_capa(&mvm->fw->ucode_capa, 724 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { 725 IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); 726 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 727 ieee80211_hw_set(hw, TDLS_WIDER_BW); 728 } 729 730 if (fw_has_capa(&mvm->fw->ucode_capa, 731 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { 732 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); 733 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 734 } 735 736 hw->netdev_features |= mvm->cfg->features; 737 if (!iwl_mvm_is_csum_supported(mvm)) { 738 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS | 739 NETIF_F_RXCSUM); 740 /* We may support SW TX CSUM */ 741 if (IWL_MVM_SW_TX_CSUM_OFFLOAD) 742 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS; 743 } 744 745 if (mvm->cfg->vht_mu_mimo_supported) 746 wiphy_ext_feature_set(hw->wiphy, 747 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); 748 749 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm); 750 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm); 751 752 ret = ieee80211_register_hw(mvm->hw); 753 if (ret) { 754 iwl_mvm_leds_exit(mvm); 755 } 756 757 return ret; 758 } 759 760 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, 761 struct ieee80211_sta *sta) 762 { 763 if (likely(sta)) { 764 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0)) 765 return; 766 } else { 767 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0)) 768 return; 769 } 770 771 ieee80211_free_txskb(mvm->hw, skb); 772 } 773 774 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, 775 struct ieee80211_tx_control *control, 776 struct sk_buff *skb) 777 { 778 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 779 struct ieee80211_sta *sta = control->sta; 780 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 781 struct ieee80211_hdr *hdr = (void *)skb->data; 782 bool offchannel = IEEE80211_SKB_CB(skb)->flags & 783 IEEE80211_TX_CTL_TX_OFFCHAN; 784 785 if (iwl_mvm_is_radio_killed(mvm)) { 786 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); 787 goto drop; 788 } 789 790 if (offchannel && 791 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && 792 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) 793 goto drop; 794 795 /* treat non-bufferable MMPDUs on AP interfaces as broadcast */ 796 if ((info->control.vif->type == NL80211_IFTYPE_AP || 797 info->control.vif->type == NL80211_IFTYPE_ADHOC) && 798 ieee80211_is_mgmt(hdr->frame_control) && 799 !ieee80211_is_bufferable_mmpdu(hdr->frame_control)) 800 sta = NULL; 801 802 /* If there is no sta, and it's not offchannel - send through AP */ 803 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION && 804 !offchannel) { 805 struct iwl_mvm_vif *mvmvif = 806 iwl_mvm_vif_from_mac80211(info->control.vif); 807 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id); 808 809 if (ap_sta_id < IWL_MVM_STATION_COUNT) { 810 /* mac80211 holds rcu read lock */ 811 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); 812 if (IS_ERR_OR_NULL(sta)) 813 goto drop; 814 } 815 } 816 817 iwl_mvm_tx_skb(mvm, skb, sta); 818 return; 819 drop: 820 ieee80211_free_txskb(hw, skb); 821 } 822 823 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq) 824 { 825 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 826 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 827 struct sk_buff *skb = NULL; 828 829 /* 830 * No need for threads to be pending here, they can leave the first 831 * taker all the work. 832 * 833 * mvmtxq->tx_request logic: 834 * 835 * If 0, no one is currently TXing, set to 1 to indicate current thread 836 * will now start TX and other threads should quit. 837 * 838 * If 1, another thread is currently TXing, set to 2 to indicate to 839 * that thread that there was another request. Since that request may 840 * have raced with the check whether the queue is empty, the TXing 841 * thread should check the queue's status one more time before leaving. 842 * This check is done in order to not leave any TX hanging in the queue 843 * until the next TX invocation (which may not even happen). 844 * 845 * If 2, another thread is currently TXing, and it will already double 846 * check the queue, so do nothing. 847 */ 848 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2)) 849 return; 850 851 rcu_read_lock(); 852 do { 853 while (likely(!mvmtxq->stopped && 854 (mvm->trans->system_pm_mode == 855 IWL_PLAT_PM_MODE_DISABLED))) { 856 skb = ieee80211_tx_dequeue(hw, txq); 857 858 if (!skb) { 859 if (txq->sta) 860 IWL_DEBUG_TX(mvm, 861 "TXQ of sta %pM tid %d is now empty\n", 862 txq->sta->addr, 863 txq->tid); 864 break; 865 } 866 867 iwl_mvm_tx_skb(mvm, skb, txq->sta); 868 } 869 } while (atomic_dec_return(&mvmtxq->tx_request)); 870 rcu_read_unlock(); 871 } 872 873 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw, 874 struct ieee80211_txq *txq) 875 { 876 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 877 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq); 878 879 /* 880 * Please note that racing is handled very carefully here: 881 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is 882 * deleted afterwards. 883 * This means that if: 884 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list): 885 * queue is allocated and we can TX. 886 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list): 887 * a race, should defer the frame. 888 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list): 889 * need to allocate the queue and defer the frame. 890 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list): 891 * queue is already scheduled for allocation, no need to allocate, 892 * should defer the frame. 893 */ 894 895 /* If the queue is allocated TX and return. */ 896 if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) { 897 /* 898 * Check that list is empty to avoid a race where txq_id is 899 * already updated, but the queue allocation work wasn't 900 * finished 901 */ 902 if (unlikely(txq->sta && !list_empty(&mvmtxq->list))) 903 return; 904 905 iwl_mvm_mac_itxq_xmit(hw, txq); 906 return; 907 } 908 909 /* The list is being deleted only after the queue is fully allocated. */ 910 if (!list_empty(&mvmtxq->list)) 911 return; 912 913 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs); 914 schedule_work(&mvm->add_stream_wk); 915 } 916 917 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ 918 do { \ 919 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ 920 break; \ 921 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ 922 } while (0) 923 924 static void 925 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 926 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, 927 enum ieee80211_ampdu_mlme_action action) 928 { 929 struct iwl_fw_dbg_trigger_tlv *trig; 930 struct iwl_fw_dbg_trigger_ba *ba_trig; 931 932 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 933 FW_DBG_TRIGGER_BA); 934 if (!trig) 935 return; 936 937 ba_trig = (void *)trig->data; 938 939 switch (action) { 940 case IEEE80211_AMPDU_TX_OPERATIONAL: { 941 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 942 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 943 944 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, 945 "TX AGG START: MAC %pM tid %d ssn %d\n", 946 sta->addr, tid, tid_data->ssn); 947 break; 948 } 949 case IEEE80211_AMPDU_TX_STOP_CONT: 950 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, 951 "TX AGG STOP: MAC %pM tid %d\n", 952 sta->addr, tid); 953 break; 954 case IEEE80211_AMPDU_RX_START: 955 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, 956 "RX AGG START: MAC %pM tid %d ssn %d\n", 957 sta->addr, tid, rx_ba_ssn); 958 break; 959 case IEEE80211_AMPDU_RX_STOP: 960 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, 961 "RX AGG STOP: MAC %pM tid %d\n", 962 sta->addr, tid); 963 break; 964 default: 965 break; 966 } 967 } 968 969 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, 970 struct ieee80211_vif *vif, 971 struct ieee80211_ampdu_params *params) 972 { 973 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 974 int ret; 975 struct ieee80211_sta *sta = params->sta; 976 enum ieee80211_ampdu_mlme_action action = params->action; 977 u16 tid = params->tid; 978 u16 *ssn = ¶ms->ssn; 979 u16 buf_size = params->buf_size; 980 bool amsdu = params->amsdu; 981 u16 timeout = params->timeout; 982 983 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", 984 sta->addr, tid, action); 985 986 if (!(mvm->nvm_data->sku_cap_11n_enable)) 987 return -EACCES; 988 989 mutex_lock(&mvm->mutex); 990 991 switch (action) { 992 case IEEE80211_AMPDU_RX_START: 993 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id == 994 iwl_mvm_sta_from_mac80211(sta)->sta_id) { 995 struct iwl_mvm_vif *mvmvif; 996 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id; 997 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid]; 998 999 mdata->opened_rx_ba_sessions = true; 1000 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1001 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk); 1002 } 1003 if (!iwl_enable_rx_ampdu()) { 1004 ret = -EINVAL; 1005 break; 1006 } 1007 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, 1008 timeout); 1009 break; 1010 case IEEE80211_AMPDU_RX_STOP: 1011 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, 1012 timeout); 1013 break; 1014 case IEEE80211_AMPDU_TX_START: 1015 if (!iwl_enable_tx_ampdu()) { 1016 ret = -EINVAL; 1017 break; 1018 } 1019 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); 1020 break; 1021 case IEEE80211_AMPDU_TX_STOP_CONT: 1022 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); 1023 break; 1024 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1025 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1026 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); 1027 break; 1028 case IEEE80211_AMPDU_TX_OPERATIONAL: 1029 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, 1030 buf_size, amsdu); 1031 break; 1032 default: 1033 WARN_ON_ONCE(1); 1034 ret = -EINVAL; 1035 break; 1036 } 1037 1038 if (!ret) { 1039 u16 rx_ba_ssn = 0; 1040 1041 if (action == IEEE80211_AMPDU_RX_START) 1042 rx_ba_ssn = *ssn; 1043 1044 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, 1045 rx_ba_ssn, action); 1046 } 1047 mutex_unlock(&mvm->mutex); 1048 1049 return ret; 1050 } 1051 1052 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, 1053 struct ieee80211_vif *vif) 1054 { 1055 struct iwl_mvm *mvm = data; 1056 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1057 1058 mvmvif->uploaded = false; 1059 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 1060 1061 spin_lock_bh(&mvm->time_event_lock); 1062 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); 1063 spin_unlock_bh(&mvm->time_event_lock); 1064 1065 mvmvif->phy_ctxt = NULL; 1066 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); 1067 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data)); 1068 } 1069 1070 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) 1071 { 1072 iwl_mvm_stop_device(mvm); 1073 1074 mvm->cur_aid = 0; 1075 1076 mvm->scan_status = 0; 1077 mvm->ps_disabled = false; 1078 mvm->rfkill_safe_init_done = false; 1079 1080 /* just in case one was running */ 1081 iwl_mvm_cleanup_roc_te(mvm); 1082 ieee80211_remain_on_channel_expired(mvm->hw); 1083 1084 iwl_mvm_ftm_restart(mvm); 1085 1086 /* 1087 * cleanup all interfaces, even inactive ones, as some might have 1088 * gone down during the HW restart 1089 */ 1090 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); 1091 1092 mvm->p2p_device_vif = NULL; 1093 1094 iwl_mvm_reset_phy_ctxts(mvm); 1095 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 1096 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 1097 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 1098 1099 ieee80211_wake_queues(mvm->hw); 1100 1101 mvm->vif_count = 0; 1102 mvm->rx_ba_sessions = 0; 1103 mvm->fwrt.dump.conf = FW_DBG_INVALID; 1104 mvm->monitor_on = false; 1105 1106 /* keep statistics ticking */ 1107 iwl_mvm_accu_radio_stats(mvm); 1108 } 1109 1110 int __iwl_mvm_mac_start(struct iwl_mvm *mvm) 1111 { 1112 int ret; 1113 1114 lockdep_assert_held(&mvm->mutex); 1115 1116 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { 1117 /* 1118 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART 1119 * so later code will - from now on - see that we're doing it. 1120 */ 1121 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1122 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1123 /* Clean up some internal and mac80211 state on restart */ 1124 iwl_mvm_restart_cleanup(mvm); 1125 } 1126 ret = iwl_mvm_up(mvm); 1127 1128 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT, 1129 NULL); 1130 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC, 1131 NULL); 1132 1133 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1134 /* Something went wrong - we need to finish some cleanup 1135 * that normally iwl_mvm_mac_restart_complete() below 1136 * would do. 1137 */ 1138 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1139 } 1140 1141 return ret; 1142 } 1143 1144 static int iwl_mvm_mac_start(struct ieee80211_hw *hw) 1145 { 1146 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1147 int ret; 1148 1149 mutex_lock(&mvm->mutex); 1150 ret = __iwl_mvm_mac_start(mvm); 1151 mutex_unlock(&mvm->mutex); 1152 1153 return ret; 1154 } 1155 1156 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) 1157 { 1158 int ret; 1159 1160 mutex_lock(&mvm->mutex); 1161 1162 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1163 1164 ret = iwl_mvm_update_quotas(mvm, true, NULL); 1165 if (ret) 1166 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", 1167 ret); 1168 1169 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY); 1170 1171 /* 1172 * If we have TDLS peers, remove them. We don't know the last seqno/PN 1173 * of packets the FW sent out, so we must reconnect. 1174 */ 1175 iwl_mvm_teardown_tdls_peers(mvm); 1176 1177 mutex_unlock(&mvm->mutex); 1178 } 1179 1180 static void 1181 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, 1182 enum ieee80211_reconfig_type reconfig_type) 1183 { 1184 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1185 1186 switch (reconfig_type) { 1187 case IEEE80211_RECONFIG_TYPE_RESTART: 1188 iwl_mvm_restart_complete(mvm); 1189 break; 1190 case IEEE80211_RECONFIG_TYPE_SUSPEND: 1191 break; 1192 } 1193 } 1194 1195 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) 1196 { 1197 lockdep_assert_held(&mvm->mutex); 1198 1199 /* firmware counters are obviously reset now, but we shouldn't 1200 * partially track so also clear the fw_reset_accu counters. 1201 */ 1202 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); 1203 1204 /* async_handlers_wk is now blocked */ 1205 1206 /* 1207 * The work item could be running or queued if the 1208 * ROC time event stops just as we get here. 1209 */ 1210 flush_work(&mvm->roc_done_wk); 1211 1212 iwl_mvm_stop_device(mvm); 1213 1214 iwl_mvm_async_handlers_purge(mvm); 1215 /* async_handlers_list is empty and will stay empty: HW is stopped */ 1216 1217 /* the fw is stopped, the aux sta is dead: clean up driver state */ 1218 iwl_mvm_del_aux_sta(mvm); 1219 1220 /* 1221 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the 1222 * hw (as restart_complete() won't be called in this case) and mac80211 1223 * won't execute the restart. 1224 * But make sure to cleanup interfaces that have gone down before/during 1225 * HW restart was requested. 1226 */ 1227 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || 1228 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1229 &mvm->status)) 1230 ieee80211_iterate_interfaces(mvm->hw, 0, 1231 iwl_mvm_cleanup_iterator, mvm); 1232 1233 /* We shouldn't have any UIDs still set. Loop over all the UIDs to 1234 * make sure there's nothing left there and warn if any is found. 1235 */ 1236 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { 1237 int i; 1238 1239 for (i = 0; i < mvm->max_scans; i++) { 1240 if (WARN_ONCE(mvm->scan_uid_status[i], 1241 "UMAC scan UID %d status was not cleaned\n", 1242 i)) 1243 mvm->scan_uid_status[i] = 0; 1244 } 1245 } 1246 } 1247 1248 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) 1249 { 1250 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1251 1252 flush_work(&mvm->async_handlers_wk); 1253 flush_work(&mvm->add_stream_wk); 1254 1255 /* 1256 * Lock and clear the firmware running bit here already, so that 1257 * new commands coming in elsewhere, e.g. from debugfs, will not 1258 * be able to proceed. This is important here because one of those 1259 * debugfs files causes the firmware dump to be triggered, and if we 1260 * don't stop debugfs accesses before canceling that it could be 1261 * retriggered after we flush it but before we've cleared the bit. 1262 */ 1263 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1264 1265 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); 1266 cancel_delayed_work_sync(&mvm->scan_timeout_dwork); 1267 iwl_fw_free_dump_desc(&mvm->fwrt); 1268 1269 mutex_lock(&mvm->mutex); 1270 __iwl_mvm_mac_stop(mvm); 1271 mutex_unlock(&mvm->mutex); 1272 1273 /* 1274 * The worker might have been waiting for the mutex, let it run and 1275 * discover that its list is now empty. 1276 */ 1277 cancel_work_sync(&mvm->async_handlers_wk); 1278 } 1279 1280 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) 1281 { 1282 u16 i; 1283 1284 lockdep_assert_held(&mvm->mutex); 1285 1286 for (i = 0; i < NUM_PHY_CTX; i++) 1287 if (!mvm->phy_ctxts[i].ref) 1288 return &mvm->phy_ctxts[i]; 1289 1290 IWL_ERR(mvm, "No available PHY context\n"); 1291 return NULL; 1292 } 1293 1294 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 1295 s16 tx_power) 1296 { 1297 int len; 1298 union { 1299 struct iwl_dev_tx_power_cmd v5; 1300 struct iwl_dev_tx_power_cmd_v4 v4; 1301 } cmd = { 1302 .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), 1303 .v5.v3.mac_context_id = 1304 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), 1305 .v5.v3.pwr_restriction = cpu_to_le16(8 * tx_power), 1306 }; 1307 1308 if (tx_power == IWL_DEFAULT_MAX_TX_POWER) 1309 cmd.v5.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); 1310 1311 if (fw_has_api(&mvm->fw->ucode_capa, 1312 IWL_UCODE_TLV_API_REDUCE_TX_POWER)) 1313 len = sizeof(cmd.v5); 1314 else if (fw_has_capa(&mvm->fw->ucode_capa, 1315 IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) 1316 len = sizeof(cmd.v4); 1317 else 1318 len = sizeof(cmd.v4.v3); 1319 1320 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); 1321 } 1322 1323 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, 1324 struct ieee80211_vif *vif) 1325 { 1326 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1327 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1328 int ret; 1329 1330 mutex_lock(&mvm->mutex); 1331 1332 if (mvmvif->csa_failed) { 1333 mvmvif->csa_failed = false; 1334 ret = -EIO; 1335 goto out_unlock; 1336 } 1337 1338 if (vif->type == NL80211_IFTYPE_STATION) { 1339 struct iwl_mvm_sta *mvmsta; 1340 1341 mvmvif->csa_bcn_pending = false; 1342 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, 1343 mvmvif->ap_sta_id); 1344 1345 if (WARN_ON(!mvmsta)) { 1346 ret = -EIO; 1347 goto out_unlock; 1348 } 1349 1350 if (!fw_has_capa(&mvm->fw->ucode_capa, 1351 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 1352 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); 1353 1354 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1355 1356 if (!fw_has_capa(&mvm->fw->ucode_capa, 1357 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 1358 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 1359 if (ret) 1360 goto out_unlock; 1361 1362 iwl_mvm_stop_session_protection(mvm, vif); 1363 } 1364 } 1365 1366 mvmvif->ps_disabled = false; 1367 1368 ret = iwl_mvm_power_update_ps(mvm); 1369 1370 out_unlock: 1371 mutex_unlock(&mvm->mutex); 1372 1373 return ret; 1374 } 1375 1376 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw, 1377 struct ieee80211_vif *vif) 1378 { 1379 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1380 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1381 struct iwl_chan_switch_te_cmd cmd = { 1382 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 1383 mvmvif->color)), 1384 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE), 1385 }; 1386 1387 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id); 1388 1389 mutex_lock(&mvm->mutex); 1390 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 1391 WIDE_ID(MAC_CONF_GROUP, 1392 CHANNEL_SWITCH_TIME_EVENT_CMD), 1393 0, sizeof(cmd), &cmd)); 1394 mutex_unlock(&mvm->mutex); 1395 1396 WARN_ON(iwl_mvm_post_channel_switch(hw, vif)); 1397 } 1398 1399 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk) 1400 { 1401 struct iwl_mvm *mvm; 1402 struct iwl_mvm_vif *mvmvif; 1403 struct ieee80211_vif *vif; 1404 1405 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work); 1406 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv); 1407 mvm = mvmvif->mvm; 1408 1409 iwl_mvm_abort_channel_switch(mvm->hw, vif); 1410 ieee80211_chswitch_done(vif, false); 1411 } 1412 1413 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, 1414 struct ieee80211_vif *vif) 1415 { 1416 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1417 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1418 int ret; 1419 1420 mvmvif->mvm = mvm; 1421 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1422 1423 /* 1424 * Not much to do here. The stack will not allow interface 1425 * types or combinations that we didn't advertise, so we 1426 * don't really have to check the types. 1427 */ 1428 1429 mutex_lock(&mvm->mutex); 1430 1431 /* make sure that beacon statistics don't go backwards with FW reset */ 1432 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 1433 mvmvif->beacon_stats.accu_num_beacons += 1434 mvmvif->beacon_stats.num_beacons; 1435 1436 /* Allocate resources for the MAC context, and add it to the fw */ 1437 ret = iwl_mvm_mac_ctxt_init(mvm, vif); 1438 if (ret) 1439 goto out_unlock; 1440 1441 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif); 1442 1443 /* Counting number of interfaces is needed for legacy PM */ 1444 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1445 mvm->vif_count++; 1446 1447 /* 1448 * The AP binding flow can be done only after the beacon 1449 * template is configured (which happens only in the mac80211 1450 * start_ap() flow), and adding the broadcast station can happen 1451 * only after the binding. 1452 * In addition, since modifying the MAC before adding a bcast 1453 * station is not allowed by the FW, delay the adding of MAC context to 1454 * the point where we can also add the bcast station. 1455 * In short: there's not much we can do at this point, other than 1456 * allocating resources :) 1457 */ 1458 if (vif->type == NL80211_IFTYPE_AP || 1459 vif->type == NL80211_IFTYPE_ADHOC) { 1460 ret = iwl_mvm_alloc_bcast_sta(mvm, vif); 1461 if (ret) { 1462 IWL_ERR(mvm, "Failed to allocate bcast sta\n"); 1463 goto out_release; 1464 } 1465 1466 /* 1467 * Only queue for this station is the mcast queue, 1468 * which shouldn't be in TFD mask anyway 1469 */ 1470 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, 1471 0, vif->type, 1472 IWL_STA_MULTICAST); 1473 if (ret) 1474 goto out_release; 1475 1476 iwl_mvm_vif_dbgfs_register(mvm, vif); 1477 goto out_unlock; 1478 } 1479 1480 mvmvif->features |= hw->netdev_features; 1481 1482 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 1483 if (ret) 1484 goto out_release; 1485 1486 ret = iwl_mvm_power_update_mac(mvm); 1487 if (ret) 1488 goto out_remove_mac; 1489 1490 /* beacon filtering */ 1491 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 1492 if (ret) 1493 goto out_remove_mac; 1494 1495 if (!mvm->bf_allowed_vif && 1496 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { 1497 mvm->bf_allowed_vif = mvmvif; 1498 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | 1499 IEEE80211_VIF_SUPPORTS_CQM_RSSI; 1500 } 1501 1502 /* 1503 * P2P_DEVICE interface does not have a channel context assigned to it, 1504 * so a dedicated PHY context is allocated to it and the corresponding 1505 * MAC context is bound to it at this stage. 1506 */ 1507 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1508 1509 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 1510 if (!mvmvif->phy_ctxt) { 1511 ret = -ENOSPC; 1512 goto out_free_bf; 1513 } 1514 1515 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 1516 ret = iwl_mvm_binding_add_vif(mvm, vif); 1517 if (ret) 1518 goto out_unref_phy; 1519 1520 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); 1521 if (ret) 1522 goto out_unbind; 1523 1524 /* Save a pointer to p2p device vif, so it can later be used to 1525 * update the p2p device MAC when a GO is started/stopped */ 1526 mvm->p2p_device_vif = vif; 1527 } 1528 1529 iwl_mvm_tcm_add_vif(mvm, vif); 1530 INIT_DELAYED_WORK(&mvmvif->csa_work, 1531 iwl_mvm_channel_switch_disconnect_wk); 1532 1533 if (vif->type == NL80211_IFTYPE_MONITOR) 1534 mvm->monitor_on = true; 1535 1536 iwl_mvm_vif_dbgfs_register(mvm, vif); 1537 goto out_unlock; 1538 1539 out_unbind: 1540 iwl_mvm_binding_remove_vif(mvm, vif); 1541 out_unref_phy: 1542 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1543 out_free_bf: 1544 if (mvm->bf_allowed_vif == mvmvif) { 1545 mvm->bf_allowed_vif = NULL; 1546 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1547 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1548 } 1549 out_remove_mac: 1550 mvmvif->phy_ctxt = NULL; 1551 iwl_mvm_mac_ctxt_remove(mvm, vif); 1552 out_release: 1553 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) 1554 mvm->vif_count--; 1555 out_unlock: 1556 mutex_unlock(&mvm->mutex); 1557 1558 return ret; 1559 } 1560 1561 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, 1562 struct ieee80211_vif *vif) 1563 { 1564 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1565 /* 1566 * Flush the ROC worker which will flush the OFFCHANNEL queue. 1567 * We assume here that all the packets sent to the OFFCHANNEL 1568 * queue are sent in ROC session. 1569 */ 1570 flush_work(&mvm->roc_done_wk); 1571 } 1572 } 1573 1574 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, 1575 struct ieee80211_vif *vif) 1576 { 1577 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1578 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1579 struct iwl_probe_resp_data *probe_data; 1580 1581 iwl_mvm_prepare_mac_removal(mvm, vif); 1582 1583 if (!(vif->type == NL80211_IFTYPE_AP || 1584 vif->type == NL80211_IFTYPE_ADHOC)) 1585 iwl_mvm_tcm_rm_vif(mvm, vif); 1586 1587 mutex_lock(&mvm->mutex); 1588 1589 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data, 1590 lockdep_is_held(&mvm->mutex)); 1591 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL); 1592 if (probe_data) 1593 kfree_rcu(probe_data, rcu_head); 1594 1595 if (mvm->bf_allowed_vif == mvmvif) { 1596 mvm->bf_allowed_vif = NULL; 1597 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | 1598 IEEE80211_VIF_SUPPORTS_CQM_RSSI); 1599 } 1600 1601 if (vif->bss_conf.ftm_responder) 1602 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats)); 1603 1604 iwl_mvm_vif_dbgfs_clean(mvm, vif); 1605 1606 /* 1607 * For AP/GO interface, the tear down of the resources allocated to the 1608 * interface is be handled as part of the stop_ap flow. 1609 */ 1610 if (vif->type == NL80211_IFTYPE_AP || 1611 vif->type == NL80211_IFTYPE_ADHOC) { 1612 #ifdef CONFIG_NL80211_TESTMODE 1613 if (vif == mvm->noa_vif) { 1614 mvm->noa_vif = NULL; 1615 mvm->noa_duration = 0; 1616 } 1617 #endif 1618 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); 1619 iwl_mvm_dealloc_bcast_sta(mvm, vif); 1620 goto out_release; 1621 } 1622 1623 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 1624 mvm->p2p_device_vif = NULL; 1625 iwl_mvm_rm_p2p_bcast_sta(mvm, vif); 1626 iwl_mvm_binding_remove_vif(mvm, vif); 1627 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 1628 mvmvif->phy_ctxt = NULL; 1629 } 1630 1631 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) 1632 mvm->vif_count--; 1633 1634 iwl_mvm_power_update_mac(mvm); 1635 iwl_mvm_mac_ctxt_remove(mvm, vif); 1636 1637 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL); 1638 1639 if (vif->type == NL80211_IFTYPE_MONITOR) 1640 mvm->monitor_on = false; 1641 1642 out_release: 1643 mutex_unlock(&mvm->mutex); 1644 } 1645 1646 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) 1647 { 1648 return 0; 1649 } 1650 1651 struct iwl_mvm_mc_iter_data { 1652 struct iwl_mvm *mvm; 1653 int port_id; 1654 }; 1655 1656 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, 1657 struct ieee80211_vif *vif) 1658 { 1659 struct iwl_mvm_mc_iter_data *data = _data; 1660 struct iwl_mvm *mvm = data->mvm; 1661 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; 1662 struct iwl_host_cmd hcmd = { 1663 .id = MCAST_FILTER_CMD, 1664 .flags = CMD_ASYNC, 1665 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 1666 }; 1667 int ret, len; 1668 1669 /* if we don't have free ports, mcast frames will be dropped */ 1670 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) 1671 return; 1672 1673 if (vif->type != NL80211_IFTYPE_STATION || 1674 !vif->bss_conf.assoc) 1675 return; 1676 1677 cmd->port_id = data->port_id++; 1678 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); 1679 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); 1680 1681 hcmd.len[0] = len; 1682 hcmd.data[0] = cmd; 1683 1684 ret = iwl_mvm_send_cmd(mvm, &hcmd); 1685 if (ret) 1686 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); 1687 } 1688 1689 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) 1690 { 1691 struct iwl_mvm_mc_iter_data iter_data = { 1692 .mvm = mvm, 1693 }; 1694 1695 lockdep_assert_held(&mvm->mutex); 1696 1697 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) 1698 return; 1699 1700 ieee80211_iterate_active_interfaces_atomic( 1701 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1702 iwl_mvm_mc_iface_iterator, &iter_data); 1703 } 1704 1705 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, 1706 struct netdev_hw_addr_list *mc_list) 1707 { 1708 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1709 struct iwl_mcast_filter_cmd *cmd; 1710 struct netdev_hw_addr *addr; 1711 int addr_count; 1712 bool pass_all; 1713 int len; 1714 1715 addr_count = netdev_hw_addr_list_count(mc_list); 1716 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || 1717 IWL_MVM_FW_MCAST_FILTER_PASS_ALL; 1718 if (pass_all) 1719 addr_count = 0; 1720 1721 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); 1722 cmd = kzalloc(len, GFP_ATOMIC); 1723 if (!cmd) 1724 return 0; 1725 1726 if (pass_all) { 1727 cmd->pass_all = 1; 1728 return (u64)(unsigned long)cmd; 1729 } 1730 1731 netdev_hw_addr_list_for_each(addr, mc_list) { 1732 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", 1733 cmd->count, addr->addr); 1734 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], 1735 addr->addr, ETH_ALEN); 1736 cmd->count++; 1737 } 1738 1739 return (u64)(unsigned long)cmd; 1740 } 1741 1742 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, 1743 unsigned int changed_flags, 1744 unsigned int *total_flags, 1745 u64 multicast) 1746 { 1747 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1748 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; 1749 1750 mutex_lock(&mvm->mutex); 1751 1752 /* replace previous configuration */ 1753 kfree(mvm->mcast_filter_cmd); 1754 mvm->mcast_filter_cmd = cmd; 1755 1756 if (!cmd) 1757 goto out; 1758 1759 if (changed_flags & FIF_ALLMULTI) 1760 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); 1761 1762 if (cmd->pass_all) 1763 cmd->count = 0; 1764 1765 iwl_mvm_recalc_multicast(mvm); 1766 out: 1767 mutex_unlock(&mvm->mutex); 1768 *total_flags = 0; 1769 } 1770 1771 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, 1772 struct ieee80211_vif *vif, 1773 unsigned int filter_flags, 1774 unsigned int changed_flags) 1775 { 1776 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1777 1778 /* We support only filter for probe requests */ 1779 if (!(changed_flags & FIF_PROBE_REQ)) 1780 return; 1781 1782 /* Supported only for p2p client interfaces */ 1783 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || 1784 !vif->p2p) 1785 return; 1786 1787 mutex_lock(&mvm->mutex); 1788 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 1789 mutex_unlock(&mvm->mutex); 1790 } 1791 1792 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING 1793 struct iwl_bcast_iter_data { 1794 struct iwl_mvm *mvm; 1795 struct iwl_bcast_filter_cmd *cmd; 1796 u8 current_filter; 1797 }; 1798 1799 static void 1800 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, 1801 const struct iwl_fw_bcast_filter *in_filter, 1802 struct iwl_fw_bcast_filter *out_filter) 1803 { 1804 struct iwl_fw_bcast_filter_attr *attr; 1805 int i; 1806 1807 memcpy(out_filter, in_filter, sizeof(*out_filter)); 1808 1809 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { 1810 attr = &out_filter->attrs[i]; 1811 1812 if (!attr->mask) 1813 break; 1814 1815 switch (attr->reserved1) { 1816 case cpu_to_le16(BC_FILTER_MAGIC_IP): 1817 if (vif->bss_conf.arp_addr_cnt != 1) { 1818 attr->mask = 0; 1819 continue; 1820 } 1821 1822 attr->val = vif->bss_conf.arp_addr_list[0]; 1823 break; 1824 case cpu_to_le16(BC_FILTER_MAGIC_MAC): 1825 attr->val = *(__be32 *)&vif->addr[2]; 1826 break; 1827 default: 1828 break; 1829 } 1830 attr->reserved1 = 0; 1831 out_filter->num_attrs++; 1832 } 1833 } 1834 1835 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, 1836 struct ieee80211_vif *vif) 1837 { 1838 struct iwl_bcast_iter_data *data = _data; 1839 struct iwl_mvm *mvm = data->mvm; 1840 struct iwl_bcast_filter_cmd *cmd = data->cmd; 1841 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1842 struct iwl_fw_bcast_mac *bcast_mac; 1843 int i; 1844 1845 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) 1846 return; 1847 1848 bcast_mac = &cmd->macs[mvmvif->id]; 1849 1850 /* 1851 * enable filtering only for associated stations, but not for P2P 1852 * Clients 1853 */ 1854 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || 1855 !vif->bss_conf.assoc) 1856 return; 1857 1858 bcast_mac->default_discard = 1; 1859 1860 /* copy all configured filters */ 1861 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { 1862 /* 1863 * Make sure we don't exceed our filters limit. 1864 * if there is still a valid filter to be configured, 1865 * be on the safe side and just allow bcast for this mac. 1866 */ 1867 if (WARN_ON_ONCE(data->current_filter >= 1868 ARRAY_SIZE(cmd->filters))) { 1869 bcast_mac->default_discard = 0; 1870 bcast_mac->attached_filters = 0; 1871 break; 1872 } 1873 1874 iwl_mvm_set_bcast_filter(vif, 1875 &mvm->bcast_filters[i], 1876 &cmd->filters[data->current_filter]); 1877 1878 /* skip current filter if it contains no attributes */ 1879 if (!cmd->filters[data->current_filter].num_attrs) 1880 continue; 1881 1882 /* attach the filter to current mac */ 1883 bcast_mac->attached_filters |= 1884 cpu_to_le16(BIT(data->current_filter)); 1885 1886 data->current_filter++; 1887 } 1888 } 1889 1890 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, 1891 struct iwl_bcast_filter_cmd *cmd) 1892 { 1893 struct iwl_bcast_iter_data iter_data = { 1894 .mvm = mvm, 1895 .cmd = cmd, 1896 }; 1897 1898 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) 1899 return false; 1900 1901 memset(cmd, 0, sizeof(*cmd)); 1902 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); 1903 cmd->max_macs = ARRAY_SIZE(cmd->macs); 1904 1905 #ifdef CONFIG_IWLWIFI_DEBUGFS 1906 /* use debugfs filters/macs if override is configured */ 1907 if (mvm->dbgfs_bcast_filtering.override) { 1908 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, 1909 sizeof(cmd->filters)); 1910 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, 1911 sizeof(cmd->macs)); 1912 return true; 1913 } 1914 #endif 1915 1916 /* if no filters are configured, do nothing */ 1917 if (!mvm->bcast_filters) 1918 return false; 1919 1920 /* configure and attach these filters for each associated sta vif */ 1921 ieee80211_iterate_active_interfaces( 1922 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1923 iwl_mvm_bcast_filter_iterator, &iter_data); 1924 1925 return true; 1926 } 1927 1928 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1929 { 1930 struct iwl_bcast_filter_cmd cmd; 1931 1932 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) 1933 return 0; 1934 1935 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) 1936 return 0; 1937 1938 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, 1939 sizeof(cmd), &cmd); 1940 } 1941 #else 1942 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) 1943 { 1944 return 0; 1945 } 1946 #endif 1947 1948 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, 1949 struct ieee80211_vif *vif) 1950 { 1951 struct iwl_mu_group_mgmt_cmd cmd = {}; 1952 1953 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, 1954 WLAN_MEMBERSHIP_LEN); 1955 memcpy(cmd.user_position, vif->bss_conf.mu_group.position, 1956 WLAN_USER_POSITION_LEN); 1957 1958 return iwl_mvm_send_cmd_pdu(mvm, 1959 WIDE_ID(DATA_PATH_GROUP, 1960 UPDATE_MU_GROUPS_CMD), 1961 0, sizeof(cmd), &cmd); 1962 } 1963 1964 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, 1965 struct ieee80211_vif *vif) 1966 { 1967 if (vif->mu_mimo_owner) { 1968 struct iwl_mu_group_mgmt_notif *notif = _data; 1969 1970 /* 1971 * MU-MIMO Group Id action frame is little endian. We treat 1972 * the data received from firmware as if it came from the 1973 * action frame, so no conversion is needed. 1974 */ 1975 ieee80211_update_mu_groups(vif, 1976 (u8 *)¬if->membership_status, 1977 (u8 *)¬if->user_position); 1978 } 1979 } 1980 1981 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, 1982 struct iwl_rx_cmd_buffer *rxb) 1983 { 1984 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1985 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; 1986 1987 ieee80211_iterate_active_interfaces_atomic( 1988 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 1989 iwl_mvm_mu_mimo_iface_iterator, notif); 1990 } 1991 1992 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit) 1993 { 1994 u8 byte_num = ppe_pos_bit / 8; 1995 u8 bit_num = ppe_pos_bit % 8; 1996 u8 residue_bits; 1997 u8 res; 1998 1999 if (bit_num <= 5) 2000 return (ppe[byte_num] >> bit_num) & 2001 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1); 2002 2003 /* 2004 * If bit_num > 5, we have to combine bits with next byte. 2005 * Calculate how many bits we need to take from current byte (called 2006 * here "residue_bits"), and add them to bits from next byte. 2007 */ 2008 2009 residue_bits = 8 - bit_num; 2010 2011 res = (ppe[byte_num + 1] & 2012 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) << 2013 residue_bits; 2014 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1); 2015 2016 return res; 2017 } 2018 2019 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm, 2020 struct ieee80211_vif *vif, u8 sta_id) 2021 { 2022 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2023 struct iwl_he_sta_context_cmd sta_ctxt_cmd = { 2024 .sta_id = sta_id, 2025 .tid_limit = IWL_MAX_TID_COUNT, 2026 .bss_color = vif->bss_conf.he_bss_color.color, 2027 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext, 2028 .frame_time_rts_th = 2029 cpu_to_le16(vif->bss_conf.frame_time_rts_th), 2030 }; 2031 int size = fw_has_api(&mvm->fw->ucode_capa, 2032 IWL_UCODE_TLV_API_MBSSID_HE) ? 2033 sizeof(sta_ctxt_cmd) : 2034 sizeof(struct iwl_he_sta_context_cmd_v1); 2035 struct ieee80211_sta *sta; 2036 u32 flags; 2037 int i; 2038 2039 rcu_read_lock(); 2040 2041 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]); 2042 if (IS_ERR_OR_NULL(sta)) { 2043 rcu_read_unlock(); 2044 WARN(1, "Can't find STA to configure HE\n"); 2045 return; 2046 } 2047 2048 if (!sta->he_cap.has_he) { 2049 rcu_read_unlock(); 2050 return; 2051 } 2052 2053 flags = 0; 2054 2055 /* Block 26-tone RU OFDMA transmissions */ 2056 if (mvmvif->he_ru_2mhz_block) 2057 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK; 2058 2059 /* HTC flags */ 2060 if (sta->he_cap.he_cap_elem.mac_cap_info[0] & 2061 IEEE80211_HE_MAC_CAP0_HTC_HE) 2062 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT); 2063 if ((sta->he_cap.he_cap_elem.mac_cap_info[1] & 2064 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) || 2065 (sta->he_cap.he_cap_elem.mac_cap_info[2] & 2066 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) { 2067 u8 link_adap = 2068 ((sta->he_cap.he_cap_elem.mac_cap_info[2] & 2069 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) + 2070 (sta->he_cap.he_cap_elem.mac_cap_info[1] & 2071 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION); 2072 2073 if (link_adap == 2) 2074 sta_ctxt_cmd.htc_flags |= 2075 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED); 2076 else if (link_adap == 3) 2077 sta_ctxt_cmd.htc_flags |= 2078 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH); 2079 } 2080 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR) 2081 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP); 2082 if (sta->he_cap.he_cap_elem.mac_cap_info[3] & 2083 IEEE80211_HE_MAC_CAP3_OMI_CONTROL) 2084 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP); 2085 if (sta->he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR) 2086 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP); 2087 2088 /* 2089 * Initialize the PPE thresholds to "None" (7), as described in Table 2090 * 9-262ac of 80211.ax/D3.0. 2091 */ 2092 memset(&sta_ctxt_cmd.pkt_ext, 7, sizeof(sta_ctxt_cmd.pkt_ext)); 2093 2094 /* If PPE Thresholds exist, parse them into a FW-familiar format. */ 2095 if (sta->he_cap.he_cap_elem.phy_cap_info[6] & 2096 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) { 2097 u8 nss = (sta->he_cap.ppe_thres[0] & 2098 IEEE80211_PPE_THRES_NSS_MASK) + 1; 2099 u8 ru_index_bitmap = 2100 (sta->he_cap.ppe_thres[0] & 2101 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK) >> 2102 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS; 2103 u8 *ppe = &sta->he_cap.ppe_thres[0]; 2104 u8 ppe_pos_bit = 7; /* Starting after PPE header */ 2105 2106 /* 2107 * FW currently supports only nss == MAX_HE_SUPP_NSS 2108 * 2109 * If nss > MAX: we can ignore values we don't support 2110 * If nss < MAX: we can set zeros in other streams 2111 */ 2112 if (nss > MAX_HE_SUPP_NSS) { 2113 IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss, 2114 MAX_HE_SUPP_NSS); 2115 nss = MAX_HE_SUPP_NSS; 2116 } 2117 2118 for (i = 0; i < nss; i++) { 2119 u8 ru_index_tmp = ru_index_bitmap << 1; 2120 u8 bw; 2121 2122 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; bw++) { 2123 ru_index_tmp >>= 1; 2124 if (!(ru_index_tmp & 1)) 2125 continue; 2126 2127 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][1] = 2128 iwl_mvm_he_get_ppe_val(ppe, 2129 ppe_pos_bit); 2130 ppe_pos_bit += 2131 IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2132 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0] = 2133 iwl_mvm_he_get_ppe_val(ppe, 2134 ppe_pos_bit); 2135 ppe_pos_bit += 2136 IEEE80211_PPE_THRES_INFO_PPET_SIZE; 2137 } 2138 } 2139 2140 flags |= STA_CTXT_HE_PACKET_EXT; 2141 } else if ((sta->he_cap.he_cap_elem.phy_cap_info[9] & 2142 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) != 2143 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_RESERVED) { 2144 int low_th = -1; 2145 int high_th = -1; 2146 2147 /* Take the PPE thresholds from the nominal padding info */ 2148 switch (sta->he_cap.he_cap_elem.phy_cap_info[9] & 2149 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) { 2150 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US: 2151 low_th = IWL_HE_PKT_EXT_NONE; 2152 high_th = IWL_HE_PKT_EXT_NONE; 2153 break; 2154 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US: 2155 low_th = IWL_HE_PKT_EXT_BPSK; 2156 high_th = IWL_HE_PKT_EXT_NONE; 2157 break; 2158 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US: 2159 low_th = IWL_HE_PKT_EXT_NONE; 2160 high_th = IWL_HE_PKT_EXT_BPSK; 2161 break; 2162 } 2163 2164 /* Set the PPE thresholds accordingly */ 2165 if (low_th >= 0 && high_th >= 0) { 2166 struct iwl_he_pkt_ext *pkt_ext = 2167 (struct iwl_he_pkt_ext *)&sta_ctxt_cmd.pkt_ext; 2168 2169 for (i = 0; i < MAX_HE_SUPP_NSS; i++) { 2170 u8 bw; 2171 2172 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; 2173 bw++) { 2174 pkt_ext->pkt_ext_qam_th[i][bw][0] = 2175 low_th; 2176 pkt_ext->pkt_ext_qam_th[i][bw][1] = 2177 high_th; 2178 } 2179 } 2180 2181 flags |= STA_CTXT_HE_PACKET_EXT; 2182 } 2183 } 2184 rcu_read_unlock(); 2185 2186 /* Mark MU EDCA as enabled, unless none detected on some AC */ 2187 flags |= STA_CTXT_HE_MU_EDCA_CW; 2188 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 2189 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca = 2190 &mvmvif->queue_params[i].mu_edca_param_rec; 2191 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); 2192 2193 if (!mvmvif->queue_params[i].mu_edca) { 2194 flags &= ~STA_CTXT_HE_MU_EDCA_CW; 2195 break; 2196 } 2197 2198 sta_ctxt_cmd.trig_based_txf[ac].cwmin = 2199 cpu_to_le16(mu_edca->ecw_min_max & 0xf); 2200 sta_ctxt_cmd.trig_based_txf[ac].cwmax = 2201 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4); 2202 sta_ctxt_cmd.trig_based_txf[ac].aifsn = 2203 cpu_to_le16(mu_edca->aifsn); 2204 sta_ctxt_cmd.trig_based_txf[ac].mu_time = 2205 cpu_to_le16(mu_edca->mu_edca_timer); 2206 } 2207 2208 if (vif->bss_conf.multi_sta_back_32bit) 2209 flags |= STA_CTXT_HE_32BIT_BA_BITMAP; 2210 2211 if (vif->bss_conf.ack_enabled) 2212 flags |= STA_CTXT_HE_ACK_ENABLED; 2213 2214 if (vif->bss_conf.uora_exists) { 2215 flags |= STA_CTXT_HE_TRIG_RND_ALLOC; 2216 2217 sta_ctxt_cmd.rand_alloc_ecwmin = 2218 vif->bss_conf.uora_ocw_range & 0x7; 2219 sta_ctxt_cmd.rand_alloc_ecwmax = 2220 (vif->bss_conf.uora_ocw_range >> 3) & 0x7; 2221 } 2222 2223 if (vif->bss_conf.nontransmitted) { 2224 flags |= STA_CTXT_HE_REF_BSSID_VALID; 2225 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr, 2226 vif->bss_conf.transmitter_bssid); 2227 sta_ctxt_cmd.max_bssid_indicator = 2228 vif->bss_conf.bssid_indicator; 2229 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index; 2230 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap; 2231 sta_ctxt_cmd.profile_periodicity = 2232 vif->bss_conf.profile_periodicity; 2233 } 2234 2235 sta_ctxt_cmd.flags = cpu_to_le32(flags); 2236 2237 if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(STA_HE_CTXT_CMD, 2238 DATA_PATH_GROUP, 0), 2239 0, size, &sta_ctxt_cmd)) 2240 IWL_ERR(mvm, "Failed to config FW to work HE!\n"); 2241 } 2242 2243 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, 2244 struct ieee80211_vif *vif, 2245 struct ieee80211_bss_conf *bss_conf, 2246 u32 changes) 2247 { 2248 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2249 int ret; 2250 2251 /* 2252 * Re-calculate the tsf id, as the master-slave relations depend on the 2253 * beacon interval, which was not known when the station interface was 2254 * added. 2255 */ 2256 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) { 2257 if (vif->bss_conf.he_support && 2258 !iwlwifi_mod_params.disable_11ax) 2259 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2260 2261 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2262 } 2263 2264 /* Update MU EDCA params */ 2265 if (changes & BSS_CHANGED_QOS && mvmvif->associated && 2266 bss_conf->assoc && vif->bss_conf.he_support && 2267 !iwlwifi_mod_params.disable_11ax) 2268 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id); 2269 2270 /* 2271 * If we're not associated yet, take the (new) BSSID before associating 2272 * so the firmware knows. If we're already associated, then use the old 2273 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC 2274 * branch for disassociation below. 2275 */ 2276 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) 2277 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2278 2279 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); 2280 if (ret) 2281 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2282 2283 /* after sending it once, adopt mac80211 data */ 2284 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); 2285 mvmvif->associated = bss_conf->assoc; 2286 2287 if (changes & BSS_CHANGED_ASSOC) { 2288 if (bss_conf->assoc) { 2289 /* clear statistics to get clean beacon counter */ 2290 iwl_mvm_request_statistics(mvm, true); 2291 memset(&mvmvif->beacon_stats, 0, 2292 sizeof(mvmvif->beacon_stats)); 2293 2294 /* add quota for this interface */ 2295 ret = iwl_mvm_update_quotas(mvm, true, NULL); 2296 if (ret) { 2297 IWL_ERR(mvm, "failed to update quotas\n"); 2298 return; 2299 } 2300 2301 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2302 &mvm->status) && 2303 !fw_has_capa(&mvm->fw->ucode_capa, 2304 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) { 2305 /* 2306 * If we're restarting then the firmware will 2307 * obviously have lost synchronisation with 2308 * the AP. It will attempt to synchronise by 2309 * itself, but we can make it more reliable by 2310 * scheduling a session protection time event. 2311 * 2312 * The firmware needs to receive a beacon to 2313 * catch up with synchronisation, use 110% of 2314 * the beacon interval. 2315 * 2316 * Set a large maximum delay to allow for more 2317 * than a single interface. 2318 * 2319 * For new firmware versions, rely on the 2320 * firmware. This is relevant for DCM scenarios 2321 * only anyway. 2322 */ 2323 u32 dur = (11 * vif->bss_conf.beacon_int) / 10; 2324 iwl_mvm_protect_session(mvm, vif, dur, dur, 2325 5 * dur, false); 2326 } 2327 2328 iwl_mvm_sf_update(mvm, vif, false); 2329 iwl_mvm_power_vif_assoc(mvm, vif); 2330 if (vif->p2p) { 2331 iwl_mvm_update_smps(mvm, vif, 2332 IWL_MVM_SMPS_REQ_PROT, 2333 IEEE80211_SMPS_DYNAMIC); 2334 } 2335 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { 2336 /* 2337 * If update fails - SF might be running in associated 2338 * mode while disassociated - which is forbidden. 2339 */ 2340 ret = iwl_mvm_sf_update(mvm, vif, false); 2341 WARN_ONCE(ret && 2342 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 2343 &mvm->status), 2344 "Failed to update SF upon disassociation\n"); 2345 2346 /* 2347 * If we get an assert during the connection (after the 2348 * station has been added, but before the vif is set 2349 * to associated), mac80211 will re-add the station and 2350 * then configure the vif. Since the vif is not 2351 * associated, we would remove the station here and 2352 * this would fail the recovery. 2353 */ 2354 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, 2355 &mvm->status)) { 2356 /* 2357 * Remove AP station now that 2358 * the MAC is unassoc 2359 */ 2360 ret = iwl_mvm_rm_sta_id(mvm, vif, 2361 mvmvif->ap_sta_id); 2362 if (ret) 2363 IWL_ERR(mvm, 2364 "failed to remove AP station\n"); 2365 2366 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; 2367 } 2368 2369 /* remove quota for this interface */ 2370 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2371 if (ret) 2372 IWL_ERR(mvm, "failed to update quotas\n"); 2373 2374 /* this will take the cleared BSSID from bss_conf */ 2375 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 2376 if (ret) 2377 IWL_ERR(mvm, 2378 "failed to update MAC %pM (clear after unassoc)\n", 2379 vif->addr); 2380 } 2381 2382 /* 2383 * The firmware tracks the MU-MIMO group on its own. 2384 * However, on HW restart we should restore this data. 2385 */ 2386 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 2387 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { 2388 ret = iwl_mvm_update_mu_groups(mvm, vif); 2389 if (ret) 2390 IWL_ERR(mvm, 2391 "failed to update VHT MU_MIMO groups\n"); 2392 } 2393 2394 iwl_mvm_recalc_multicast(mvm); 2395 iwl_mvm_configure_bcast_filter(mvm); 2396 2397 /* reset rssi values */ 2398 mvmvif->bf_data.ave_beacon_signal = 0; 2399 2400 iwl_mvm_bt_coex_vif_change(mvm); 2401 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, 2402 IEEE80211_SMPS_AUTOMATIC); 2403 if (fw_has_capa(&mvm->fw->ucode_capa, 2404 IWL_UCODE_TLV_CAPA_UMAC_SCAN)) 2405 iwl_mvm_config_scan(mvm); 2406 } 2407 2408 if (changes & BSS_CHANGED_BEACON_INFO) { 2409 /* 2410 * We received a beacon from the associated AP so 2411 * remove the session protection. 2412 * A firmware with the new API will remove it automatically. 2413 */ 2414 if (!fw_has_capa(&mvm->fw->ucode_capa, 2415 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 2416 iwl_mvm_stop_session_protection(mvm, vif); 2417 2418 iwl_mvm_sf_update(mvm, vif, false); 2419 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 2420 } 2421 2422 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | 2423 /* 2424 * Send power command on every beacon change, 2425 * because we may have not enabled beacon abort yet. 2426 */ 2427 BSS_CHANGED_BEACON_INFO)) { 2428 ret = iwl_mvm_power_update_mac(mvm); 2429 if (ret) 2430 IWL_ERR(mvm, "failed to update power mode\n"); 2431 } 2432 2433 if (changes & BSS_CHANGED_TXPOWER) { 2434 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2435 bss_conf->txpower); 2436 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2437 } 2438 2439 if (changes & BSS_CHANGED_CQM) { 2440 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); 2441 /* reset cqm events tracking */ 2442 mvmvif->bf_data.last_cqm_event = 0; 2443 if (mvmvif->bf_data.bf_enabled) { 2444 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); 2445 if (ret) 2446 IWL_ERR(mvm, 2447 "failed to update CQM thresholds\n"); 2448 } 2449 } 2450 2451 if (changes & BSS_CHANGED_ARP_FILTER) { 2452 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); 2453 iwl_mvm_configure_bcast_filter(mvm); 2454 } 2455 } 2456 2457 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, 2458 struct ieee80211_vif *vif) 2459 { 2460 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2461 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2462 int ret, i; 2463 2464 mutex_lock(&mvm->mutex); 2465 2466 /* Send the beacon template */ 2467 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); 2468 if (ret) 2469 goto out_unlock; 2470 2471 /* 2472 * Re-calculate the tsf id, as the master-slave relations depend on the 2473 * beacon interval, which was not known when the AP interface was added. 2474 */ 2475 if (vif->type == NL80211_IFTYPE_AP) 2476 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); 2477 2478 mvmvif->ap_assoc_sta_count = 0; 2479 2480 /* Add the mac context */ 2481 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 2482 if (ret) 2483 goto out_unlock; 2484 2485 /* Perform the binding */ 2486 ret = iwl_mvm_binding_add_vif(mvm, vif); 2487 if (ret) 2488 goto out_remove; 2489 2490 /* 2491 * This is not very nice, but the simplest: 2492 * For older FWs adding the mcast sta before the bcast station may 2493 * cause assert 0x2b00. 2494 * This is fixed in later FW so make the order of removal depend on 2495 * the TLV 2496 */ 2497 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { 2498 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2499 if (ret) 2500 goto out_unbind; 2501 /* 2502 * Send the bcast station. At this stage the TBTT and DTIM time 2503 * events are added and applied to the scheduler 2504 */ 2505 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2506 if (ret) { 2507 iwl_mvm_rm_mcast_sta(mvm, vif); 2508 goto out_unbind; 2509 } 2510 } else { 2511 /* 2512 * Send the bcast station. At this stage the TBTT and DTIM time 2513 * events are added and applied to the scheduler 2514 */ 2515 ret = iwl_mvm_send_add_bcast_sta(mvm, vif); 2516 if (ret) 2517 goto out_unbind; 2518 ret = iwl_mvm_add_mcast_sta(mvm, vif); 2519 if (ret) { 2520 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2521 goto out_unbind; 2522 } 2523 } 2524 2525 /* must be set before quota calculations */ 2526 mvmvif->ap_ibss_active = true; 2527 2528 /* send all the early keys to the device now */ 2529 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 2530 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i]; 2531 2532 if (!key) 2533 continue; 2534 2535 mvmvif->ap_early_keys[i] = NULL; 2536 2537 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key); 2538 if (ret) 2539 goto out_quota_failed; 2540 } 2541 2542 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2543 iwl_mvm_vif_set_low_latency(mvmvif, true, 2544 LOW_LATENCY_VIF_TYPE); 2545 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id); 2546 } 2547 2548 /* power updated needs to be done before quotas */ 2549 iwl_mvm_power_update_mac(mvm); 2550 2551 ret = iwl_mvm_update_quotas(mvm, false, NULL); 2552 if (ret) 2553 goto out_quota_failed; 2554 2555 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2556 if (vif->p2p && mvm->p2p_device_vif) 2557 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2558 2559 iwl_mvm_bt_coex_vif_change(mvm); 2560 2561 /* we don't support TDLS during DCM */ 2562 if (iwl_mvm_phy_ctx_count(mvm) > 1) 2563 iwl_mvm_teardown_tdls_peers(mvm); 2564 2565 iwl_mvm_ftm_restart_responder(mvm, vif); 2566 2567 goto out_unlock; 2568 2569 out_quota_failed: 2570 iwl_mvm_power_update_mac(mvm); 2571 mvmvif->ap_ibss_active = false; 2572 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2573 iwl_mvm_rm_mcast_sta(mvm, vif); 2574 out_unbind: 2575 iwl_mvm_binding_remove_vif(mvm, vif); 2576 out_remove: 2577 iwl_mvm_mac_ctxt_remove(mvm, vif); 2578 out_unlock: 2579 mutex_unlock(&mvm->mutex); 2580 return ret; 2581 } 2582 2583 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, 2584 struct ieee80211_vif *vif) 2585 { 2586 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2587 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2588 2589 iwl_mvm_prepare_mac_removal(mvm, vif); 2590 2591 mutex_lock(&mvm->mutex); 2592 2593 /* Handle AP stop while in CSA */ 2594 if (rcu_access_pointer(mvm->csa_vif) == vif) { 2595 iwl_mvm_remove_time_event(mvm, mvmvif, 2596 &mvmvif->time_event_data); 2597 RCU_INIT_POINTER(mvm->csa_vif, NULL); 2598 mvmvif->csa_countdown = false; 2599 } 2600 2601 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { 2602 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 2603 mvm->csa_tx_block_bcn_timeout = 0; 2604 } 2605 2606 mvmvif->ap_ibss_active = false; 2607 mvm->ap_last_beacon_gp2 = 0; 2608 2609 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) { 2610 iwl_mvm_vif_set_low_latency(mvmvif, false, 2611 LOW_LATENCY_VIF_TYPE); 2612 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id); 2613 } 2614 2615 iwl_mvm_bt_coex_vif_change(mvm); 2616 2617 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ 2618 if (vif->p2p && mvm->p2p_device_vif) 2619 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); 2620 2621 iwl_mvm_update_quotas(mvm, false, NULL); 2622 2623 /* 2624 * This is not very nice, but the simplest: 2625 * For older FWs removing the mcast sta before the bcast station may 2626 * cause assert 0x2b00. 2627 * This is fixed in later FW (which will stop beaconing when removing 2628 * bcast station). 2629 * So make the order of removal depend on the TLV 2630 */ 2631 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2632 iwl_mvm_rm_mcast_sta(mvm, vif); 2633 iwl_mvm_send_rm_bcast_sta(mvm, vif); 2634 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) 2635 iwl_mvm_rm_mcast_sta(mvm, vif); 2636 iwl_mvm_binding_remove_vif(mvm, vif); 2637 2638 iwl_mvm_power_update_mac(mvm); 2639 2640 iwl_mvm_mac_ctxt_remove(mvm, vif); 2641 2642 mutex_unlock(&mvm->mutex); 2643 } 2644 2645 static void 2646 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, 2647 struct ieee80211_vif *vif, 2648 struct ieee80211_bss_conf *bss_conf, 2649 u32 changes) 2650 { 2651 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2652 2653 /* Changes will be applied when the AP/IBSS is started */ 2654 if (!mvmvif->ap_ibss_active) 2655 return; 2656 2657 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | 2658 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && 2659 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) 2660 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); 2661 2662 /* Need to send a new beacon template to the FW */ 2663 if (changes & BSS_CHANGED_BEACON && 2664 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) 2665 IWL_WARN(mvm, "Failed updating beacon data\n"); 2666 2667 if (changes & BSS_CHANGED_TXPOWER) { 2668 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", 2669 bss_conf->txpower); 2670 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); 2671 } 2672 2673 if (changes & BSS_CHANGED_FTM_RESPONDER) { 2674 int ret = iwl_mvm_ftm_start_responder(mvm, vif); 2675 2676 if (ret) 2677 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n", 2678 ret); 2679 } 2680 2681 } 2682 2683 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, 2684 struct ieee80211_vif *vif, 2685 struct ieee80211_bss_conf *bss_conf, 2686 u32 changes) 2687 { 2688 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2689 2690 mutex_lock(&mvm->mutex); 2691 2692 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) 2693 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 2694 2695 switch (vif->type) { 2696 case NL80211_IFTYPE_STATION: 2697 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); 2698 break; 2699 case NL80211_IFTYPE_AP: 2700 case NL80211_IFTYPE_ADHOC: 2701 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); 2702 break; 2703 case NL80211_IFTYPE_MONITOR: 2704 if (changes & BSS_CHANGED_MU_GROUPS) 2705 iwl_mvm_update_mu_groups(mvm, vif); 2706 break; 2707 default: 2708 /* shouldn't happen */ 2709 WARN_ON_ONCE(1); 2710 } 2711 2712 mutex_unlock(&mvm->mutex); 2713 } 2714 2715 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, 2716 struct ieee80211_vif *vif, 2717 struct ieee80211_scan_request *hw_req) 2718 { 2719 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2720 int ret; 2721 2722 if (hw_req->req.n_channels == 0 || 2723 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) 2724 return -EINVAL; 2725 2726 mutex_lock(&mvm->mutex); 2727 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); 2728 mutex_unlock(&mvm->mutex); 2729 2730 return ret; 2731 } 2732 2733 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, 2734 struct ieee80211_vif *vif) 2735 { 2736 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2737 2738 mutex_lock(&mvm->mutex); 2739 2740 /* Due to a race condition, it's possible that mac80211 asks 2741 * us to stop a hw_scan when it's already stopped. This can 2742 * happen, for instance, if we stopped the scan ourselves, 2743 * called ieee80211_scan_completed() and the userspace called 2744 * cancel scan scan before ieee80211_scan_work() could run. 2745 * To handle that, simply return if the scan is not running. 2746 */ 2747 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) 2748 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 2749 2750 mutex_unlock(&mvm->mutex); 2751 } 2752 2753 static void 2754 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, 2755 struct ieee80211_sta *sta, u16 tids, 2756 int num_frames, 2757 enum ieee80211_frame_release_type reason, 2758 bool more_data) 2759 { 2760 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2761 2762 /* Called when we need to transmit (a) frame(s) from mac80211 */ 2763 2764 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2765 tids, more_data, false); 2766 } 2767 2768 static void 2769 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, 2770 struct ieee80211_sta *sta, u16 tids, 2771 int num_frames, 2772 enum ieee80211_frame_release_type reason, 2773 bool more_data) 2774 { 2775 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2776 2777 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ 2778 2779 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, 2780 tids, more_data, true); 2781 } 2782 2783 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2784 enum sta_notify_cmd cmd, 2785 struct ieee80211_sta *sta) 2786 { 2787 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2788 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 2789 unsigned long txqs = 0, tids = 0; 2790 int tid; 2791 2792 /* 2793 * If we have TVQM then we get too high queue numbers - luckily 2794 * we really shouldn't get here with that because such hardware 2795 * should have firmware supporting buffer station offload. 2796 */ 2797 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) 2798 return; 2799 2800 spin_lock_bh(&mvmsta->lock); 2801 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) { 2802 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; 2803 2804 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) 2805 continue; 2806 2807 __set_bit(tid_data->txq_id, &txqs); 2808 2809 if (iwl_mvm_tid_queued(mvm, tid_data) == 0) 2810 continue; 2811 2812 __set_bit(tid, &tids); 2813 } 2814 2815 switch (cmd) { 2816 case STA_NOTIFY_SLEEP: 2817 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) 2818 ieee80211_sta_set_buffered(sta, tid, true); 2819 2820 if (txqs) 2821 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); 2822 /* 2823 * The fw updates the STA to be asleep. Tx packets on the Tx 2824 * queues to this station will not be transmitted. The fw will 2825 * send a Tx response with TX_STATUS_FAIL_DEST_PS. 2826 */ 2827 break; 2828 case STA_NOTIFY_AWAKE: 2829 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) 2830 break; 2831 2832 if (txqs) 2833 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); 2834 iwl_mvm_sta_modify_ps_wake(mvm, sta); 2835 break; 2836 default: 2837 break; 2838 } 2839 spin_unlock_bh(&mvmsta->lock); 2840 } 2841 2842 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, 2843 struct ieee80211_vif *vif, 2844 enum sta_notify_cmd cmd, 2845 struct ieee80211_sta *sta) 2846 { 2847 __iwl_mvm_mac_sta_notify(hw, cmd, sta); 2848 } 2849 2850 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 2851 { 2852 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2853 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; 2854 struct ieee80211_sta *sta; 2855 struct iwl_mvm_sta *mvmsta; 2856 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); 2857 2858 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) 2859 return; 2860 2861 rcu_read_lock(); 2862 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); 2863 if (WARN_ON(IS_ERR_OR_NULL(sta))) { 2864 rcu_read_unlock(); 2865 return; 2866 } 2867 2868 mvmsta = iwl_mvm_sta_from_mac80211(sta); 2869 2870 if (!mvmsta->vif || 2871 mvmsta->vif->type != NL80211_IFTYPE_AP) { 2872 rcu_read_unlock(); 2873 return; 2874 } 2875 2876 if (mvmsta->sleeping != sleeping) { 2877 mvmsta->sleeping = sleeping; 2878 __iwl_mvm_mac_sta_notify(mvm->hw, 2879 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, 2880 sta); 2881 ieee80211_sta_ps_transition(sta, sleeping); 2882 } 2883 2884 if (sleeping) { 2885 switch (notif->type) { 2886 case IWL_MVM_PM_EVENT_AWAKE: 2887 case IWL_MVM_PM_EVENT_ASLEEP: 2888 break; 2889 case IWL_MVM_PM_EVENT_UAPSD: 2890 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); 2891 break; 2892 case IWL_MVM_PM_EVENT_PS_POLL: 2893 ieee80211_sta_pspoll(sta); 2894 break; 2895 default: 2896 break; 2897 } 2898 } 2899 2900 rcu_read_unlock(); 2901 } 2902 2903 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, 2904 struct ieee80211_vif *vif, 2905 struct ieee80211_sta *sta) 2906 { 2907 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 2908 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 2909 2910 /* 2911 * This is called before mac80211 does RCU synchronisation, 2912 * so here we already invalidate our internal RCU-protected 2913 * station pointer. The rest of the code will thus no longer 2914 * be able to find the station this way, and we don't rely 2915 * on further RCU synchronisation after the sta_state() 2916 * callback deleted the station. 2917 */ 2918 mutex_lock(&mvm->mutex); 2919 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) 2920 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], 2921 ERR_PTR(-ENOENT)); 2922 2923 mutex_unlock(&mvm->mutex); 2924 } 2925 2926 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 2927 const u8 *bssid) 2928 { 2929 int i; 2930 2931 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 2932 struct iwl_mvm_tcm_mac *mdata; 2933 2934 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id]; 2935 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate); 2936 mdata->opened_rx_ba_sessions = false; 2937 } 2938 2939 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) 2940 return; 2941 2942 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { 2943 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2944 return; 2945 } 2946 2947 if (!vif->p2p && 2948 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { 2949 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2950 return; 2951 } 2952 2953 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) { 2954 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) { 2955 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; 2956 return; 2957 } 2958 } 2959 2960 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 2961 } 2962 2963 static void 2964 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, 2965 struct ieee80211_vif *vif, u8 *peer_addr, 2966 enum nl80211_tdls_operation action) 2967 { 2968 struct iwl_fw_dbg_trigger_tlv *trig; 2969 struct iwl_fw_dbg_trigger_tdls *tdls_trig; 2970 2971 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 2972 FW_DBG_TRIGGER_TDLS); 2973 if (!trig) 2974 return; 2975 2976 tdls_trig = (void *)trig->data; 2977 2978 if (!(tdls_trig->action_bitmap & BIT(action))) 2979 return; 2980 2981 if (tdls_trig->peer_mode && 2982 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) 2983 return; 2984 2985 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 2986 "TDLS event occurred, peer %pM, action %d", 2987 peer_addr, action); 2988 } 2989 2990 struct iwl_mvm_he_obss_narrow_bw_ru_data { 2991 bool tolerated; 2992 }; 2993 2994 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy, 2995 struct cfg80211_bss *bss, 2996 void *_data) 2997 { 2998 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data; 2999 const struct element *elem; 3000 3001 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, bss->ies->data, 3002 bss->ies->len); 3003 3004 if (!elem || elem->datalen < 10 || 3005 !(elem->data[10] & 3006 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) { 3007 data->tolerated = false; 3008 } 3009 } 3010 3011 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw, 3012 struct ieee80211_vif *vif) 3013 { 3014 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3015 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = { 3016 .tolerated = true, 3017 }; 3018 3019 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) { 3020 mvmvif->he_ru_2mhz_block = false; 3021 return; 3022 } 3023 3024 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef, 3025 iwl_mvm_check_he_obss_narrow_bw_ru_iter, 3026 &iter_data); 3027 3028 /* 3029 * If there is at least one AP on radar channel that cannot 3030 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU. 3031 */ 3032 mvmvif->he_ru_2mhz_block = !iter_data.tolerated; 3033 } 3034 3035 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, 3036 struct ieee80211_vif *vif, 3037 struct ieee80211_sta *sta, 3038 enum ieee80211_sta_state old_state, 3039 enum ieee80211_sta_state new_state) 3040 { 3041 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3042 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3043 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 3044 int ret; 3045 3046 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", 3047 sta->addr, old_state, new_state); 3048 3049 /* this would be a mac80211 bug ... but don't crash */ 3050 if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) 3051 return -EINVAL; 3052 3053 /* 3054 * If we are in a STA removal flow and in DQA mode: 3055 * 3056 * This is after the sync_rcu part, so the queues have already been 3057 * flushed. No more TXs on their way in mac80211's path, and no more in 3058 * the queues. 3059 * Also, we won't be getting any new TX frames for this station. 3060 * What we might have are deferred TX frames that need to be taken care 3061 * of. 3062 * 3063 * Drop any still-queued deferred-frame before removing the STA, and 3064 * make sure the worker is no longer handling frames for this STA. 3065 */ 3066 if (old_state == IEEE80211_STA_NONE && 3067 new_state == IEEE80211_STA_NOTEXIST) { 3068 flush_work(&mvm->add_stream_wk); 3069 3070 /* 3071 * No need to make sure deferred TX indication is off since the 3072 * worker will already remove it if it was on 3073 */ 3074 } 3075 3076 mutex_lock(&mvm->mutex); 3077 /* track whether or not the station is associated */ 3078 mvm_sta->sta_state = new_state; 3079 3080 if (old_state == IEEE80211_STA_NOTEXIST && 3081 new_state == IEEE80211_STA_NONE) { 3082 /* 3083 * Firmware bug - it'll crash if the beacon interval is less 3084 * than 16. We can't avoid connecting at all, so refuse the 3085 * station state change, this will cause mac80211 to abandon 3086 * attempts to connect to this AP, and eventually wpa_s will 3087 * blacklist the AP... 3088 */ 3089 if (vif->type == NL80211_IFTYPE_STATION && 3090 vif->bss_conf.beacon_int < 16) { 3091 IWL_ERR(mvm, 3092 "AP %pM beacon interval is %d, refusing due to firmware bug!\n", 3093 sta->addr, vif->bss_conf.beacon_int); 3094 ret = -EINVAL; 3095 goto out_unlock; 3096 } 3097 3098 if (sta->tdls && 3099 (vif->p2p || 3100 iwl_mvm_tdls_sta_count(mvm, NULL) == 3101 IWL_MVM_TDLS_STA_COUNT || 3102 iwl_mvm_phy_ctx_count(mvm) > 1)) { 3103 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); 3104 ret = -EBUSY; 3105 goto out_unlock; 3106 } 3107 3108 ret = iwl_mvm_add_sta(mvm, vif, sta); 3109 if (sta->tdls && ret == 0) { 3110 iwl_mvm_recalc_tdls_state(mvm, vif, true); 3111 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3112 NL80211_TDLS_SETUP); 3113 } 3114 3115 sta->max_rc_amsdu_len = 1; 3116 } else if (old_state == IEEE80211_STA_NONE && 3117 new_state == IEEE80211_STA_AUTH) { 3118 /* 3119 * EBS may be disabled due to previous failures reported by FW. 3120 * Reset EBS status here assuming environment has been changed. 3121 */ 3122 mvm->last_ebs_successful = true; 3123 iwl_mvm_check_uapsd(mvm, vif, sta->addr); 3124 ret = 0; 3125 } else if (old_state == IEEE80211_STA_AUTH && 3126 new_state == IEEE80211_STA_ASSOC) { 3127 if (vif->type == NL80211_IFTYPE_AP) { 3128 vif->bss_conf.he_support = sta->he_cap.has_he; 3129 mvmvif->ap_assoc_sta_count++; 3130 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3131 if (vif->bss_conf.he_support && 3132 !iwlwifi_mod_params.disable_11ax) 3133 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id); 3134 } else if (vif->type == NL80211_IFTYPE_STATION) { 3135 vif->bss_conf.he_support = sta->he_cap.has_he; 3136 3137 mvmvif->he_ru_2mhz_block = false; 3138 if (sta->he_cap.has_he) 3139 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif); 3140 3141 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3142 } 3143 3144 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3145 false); 3146 ret = iwl_mvm_update_sta(mvm, vif, sta); 3147 } else if (old_state == IEEE80211_STA_ASSOC && 3148 new_state == IEEE80211_STA_AUTHORIZED) { 3149 ret = 0; 3150 3151 /* we don't support TDLS during DCM */ 3152 if (iwl_mvm_phy_ctx_count(mvm) > 1) 3153 iwl_mvm_teardown_tdls_peers(mvm); 3154 3155 if (sta->tdls) 3156 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3157 NL80211_TDLS_ENABLE_LINK); 3158 3159 /* enable beacon filtering */ 3160 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); 3161 3162 /* 3163 * Now that the station is authorized, i.e., keys were already 3164 * installed, need to indicate to the FW that 3165 * multicast data frames can be forwarded to the driver 3166 */ 3167 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3168 3169 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3170 true); 3171 } else if (old_state == IEEE80211_STA_AUTHORIZED && 3172 new_state == IEEE80211_STA_ASSOC) { 3173 /* Multicast data frames are no longer allowed */ 3174 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3175 3176 /* disable beacon filtering */ 3177 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 3178 WARN_ON(ret && 3179 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3180 &mvm->status)); 3181 ret = 0; 3182 } else if (old_state == IEEE80211_STA_ASSOC && 3183 new_state == IEEE80211_STA_AUTH) { 3184 if (vif->type == NL80211_IFTYPE_AP) { 3185 mvmvif->ap_assoc_sta_count--; 3186 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3187 } 3188 ret = 0; 3189 } else if (old_state == IEEE80211_STA_AUTH && 3190 new_state == IEEE80211_STA_NONE) { 3191 ret = 0; 3192 } else if (old_state == IEEE80211_STA_NONE && 3193 new_state == IEEE80211_STA_NOTEXIST) { 3194 ret = iwl_mvm_rm_sta(mvm, vif, sta); 3195 if (sta->tdls) { 3196 iwl_mvm_recalc_tdls_state(mvm, vif, false); 3197 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, 3198 NL80211_TDLS_DISABLE_LINK); 3199 } 3200 3201 if (unlikely(ret && 3202 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 3203 &mvm->status))) 3204 ret = 0; 3205 } else { 3206 ret = -EIO; 3207 } 3208 out_unlock: 3209 mutex_unlock(&mvm->mutex); 3210 3211 if (sta->tdls && ret == 0) { 3212 if (old_state == IEEE80211_STA_NOTEXIST && 3213 new_state == IEEE80211_STA_NONE) 3214 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3215 else if (old_state == IEEE80211_STA_NONE && 3216 new_state == IEEE80211_STA_NOTEXIST) 3217 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); 3218 } 3219 3220 return ret; 3221 } 3222 3223 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 3224 { 3225 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3226 3227 mvm->rts_threshold = value; 3228 3229 return 0; 3230 } 3231 3232 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, 3233 struct ieee80211_vif *vif, 3234 struct ieee80211_sta *sta, u32 changed) 3235 { 3236 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3237 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3238 3239 if (changed & (IEEE80211_RC_BW_CHANGED | 3240 IEEE80211_RC_SUPP_RATES_CHANGED | 3241 IEEE80211_RC_NSS_CHANGED)) 3242 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, 3243 true); 3244 3245 if (vif->type == NL80211_IFTYPE_STATION && 3246 changed & IEEE80211_RC_NSS_CHANGED) 3247 iwl_mvm_sf_update(mvm, vif, false); 3248 } 3249 3250 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, 3251 struct ieee80211_vif *vif, u16 ac, 3252 const struct ieee80211_tx_queue_params *params) 3253 { 3254 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3255 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3256 3257 mvmvif->queue_params[ac] = *params; 3258 3259 /* 3260 * No need to update right away, we'll get BSS_CHANGED_QOS 3261 * The exception is P2P_DEVICE interface which needs immediate update. 3262 */ 3263 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { 3264 int ret; 3265 3266 mutex_lock(&mvm->mutex); 3267 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 3268 mutex_unlock(&mvm->mutex); 3269 return ret; 3270 } 3271 return 0; 3272 } 3273 3274 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, 3275 struct ieee80211_vif *vif, 3276 u16 req_duration) 3277 { 3278 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3279 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; 3280 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; 3281 3282 if (req_duration > duration) 3283 duration = req_duration; 3284 3285 mutex_lock(&mvm->mutex); 3286 /* Try really hard to protect the session and hear a beacon 3287 * The new session protection command allows us to protect the 3288 * session for a much longer time since the firmware will internally 3289 * create two events: a 300TU one with a very high priority that 3290 * won't be fragmented which should be enough for 99% of the cases, 3291 * and another one (which we configure here to be 900TU long) which 3292 * will have a slightly lower priority, but more importantly, can be 3293 * fragmented so that it'll allow other activities to run. 3294 */ 3295 if (fw_has_capa(&mvm->fw->ucode_capa, 3296 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) 3297 iwl_mvm_schedule_session_protection(mvm, vif, 900, 3298 min_duration, false); 3299 else 3300 iwl_mvm_protect_session(mvm, vif, duration, 3301 min_duration, 500, false); 3302 mutex_unlock(&mvm->mutex); 3303 } 3304 3305 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, 3306 struct ieee80211_vif *vif, 3307 struct cfg80211_sched_scan_request *req, 3308 struct ieee80211_scan_ies *ies) 3309 { 3310 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3311 3312 int ret; 3313 3314 mutex_lock(&mvm->mutex); 3315 3316 if (!vif->bss_conf.idle) { 3317 ret = -EBUSY; 3318 goto out; 3319 } 3320 3321 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); 3322 3323 out: 3324 mutex_unlock(&mvm->mutex); 3325 return ret; 3326 } 3327 3328 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, 3329 struct ieee80211_vif *vif) 3330 { 3331 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3332 int ret; 3333 3334 mutex_lock(&mvm->mutex); 3335 3336 /* Due to a race condition, it's possible that mac80211 asks 3337 * us to stop a sched_scan when it's already stopped. This 3338 * can happen, for instance, if we stopped the scan ourselves, 3339 * called ieee80211_sched_scan_stopped() and the userspace called 3340 * stop sched scan scan before ieee80211_sched_scan_stopped_work() 3341 * could run. To handle this, simply return if the scan is 3342 * not running. 3343 */ 3344 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { 3345 mutex_unlock(&mvm->mutex); 3346 return 0; 3347 } 3348 3349 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); 3350 mutex_unlock(&mvm->mutex); 3351 iwl_mvm_wait_for_async_handlers(mvm); 3352 3353 return ret; 3354 } 3355 3356 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3357 enum set_key_cmd cmd, 3358 struct ieee80211_vif *vif, 3359 struct ieee80211_sta *sta, 3360 struct ieee80211_key_conf *key) 3361 { 3362 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3363 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3364 struct iwl_mvm_sta *mvmsta; 3365 struct iwl_mvm_key_pn *ptk_pn; 3366 int keyidx = key->keyidx; 3367 int ret, i; 3368 u8 key_offset; 3369 3370 if (iwlwifi_mod_params.swcrypto) { 3371 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); 3372 return -EOPNOTSUPP; 3373 } 3374 3375 switch (key->cipher) { 3376 case WLAN_CIPHER_SUITE_TKIP: 3377 if (!mvm->trans->trans_cfg->gen2) { 3378 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; 3379 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3380 } else if (vif->type == NL80211_IFTYPE_STATION) { 3381 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE; 3382 } else { 3383 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n"); 3384 return -EOPNOTSUPP; 3385 } 3386 break; 3387 case WLAN_CIPHER_SUITE_CCMP: 3388 case WLAN_CIPHER_SUITE_GCMP: 3389 case WLAN_CIPHER_SUITE_GCMP_256: 3390 if (!iwl_mvm_has_new_tx_api(mvm)) 3391 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3392 break; 3393 case WLAN_CIPHER_SUITE_AES_CMAC: 3394 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 3395 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 3396 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); 3397 break; 3398 case WLAN_CIPHER_SUITE_WEP40: 3399 case WLAN_CIPHER_SUITE_WEP104: 3400 if (vif->type == NL80211_IFTYPE_STATION) 3401 break; 3402 if (iwl_mvm_has_new_tx_api(mvm)) 3403 return -EOPNOTSUPP; 3404 /* support HW crypto on TX */ 3405 return 0; 3406 default: 3407 /* currently FW supports only one optional cipher scheme */ 3408 if (hw->n_cipher_schemes && 3409 hw->cipher_schemes->cipher == key->cipher) 3410 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; 3411 else 3412 return -EOPNOTSUPP; 3413 } 3414 3415 switch (cmd) { 3416 case SET_KEY: 3417 if ((vif->type == NL80211_IFTYPE_ADHOC || 3418 vif->type == NL80211_IFTYPE_AP) && !sta) { 3419 /* 3420 * GTK on AP interface is a TX-only key, return 0; 3421 * on IBSS they're per-station and because we're lazy 3422 * we don't support them for RX, so do the same. 3423 * CMAC/GMAC in AP/IBSS modes must be done in software. 3424 */ 3425 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || 3426 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || 3427 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) 3428 ret = -EOPNOTSUPP; 3429 else 3430 ret = 0; 3431 3432 if (key->cipher != WLAN_CIPHER_SUITE_GCMP && 3433 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && 3434 !iwl_mvm_has_new_tx_api(mvm)) { 3435 key->hw_key_idx = STA_KEY_IDX_INVALID; 3436 break; 3437 } 3438 3439 if (!mvmvif->ap_ibss_active) { 3440 for (i = 0; 3441 i < ARRAY_SIZE(mvmvif->ap_early_keys); 3442 i++) { 3443 if (!mvmvif->ap_early_keys[i]) { 3444 mvmvif->ap_early_keys[i] = key; 3445 break; 3446 } 3447 } 3448 3449 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys)) 3450 ret = -ENOSPC; 3451 3452 break; 3453 } 3454 } 3455 3456 /* During FW restart, in order to restore the state as it was, 3457 * don't try to reprogram keys we previously failed for. 3458 */ 3459 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3460 key->hw_key_idx == STA_KEY_IDX_INVALID) { 3461 IWL_DEBUG_MAC80211(mvm, 3462 "skip invalid idx key programming during restart\n"); 3463 ret = 0; 3464 break; 3465 } 3466 3467 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3468 sta && iwl_mvm_has_new_rx_api(mvm) && 3469 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3470 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3471 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3472 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3473 struct ieee80211_key_seq seq; 3474 int tid, q; 3475 3476 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3477 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); 3478 ptk_pn = kzalloc(struct_size(ptk_pn, q, 3479 mvm->trans->num_rx_queues), 3480 GFP_KERNEL); 3481 if (!ptk_pn) { 3482 ret = -ENOMEM; 3483 break; 3484 } 3485 3486 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 3487 ieee80211_get_key_rx_seq(key, tid, &seq); 3488 for (q = 0; q < mvm->trans->num_rx_queues; q++) 3489 memcpy(ptk_pn->q[q].pn[tid], 3490 seq.ccmp.pn, 3491 IEEE80211_CCMP_PN_LEN); 3492 } 3493 3494 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); 3495 } 3496 3497 /* in HW restart reuse the index, otherwise request a new one */ 3498 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) 3499 key_offset = key->hw_key_idx; 3500 else 3501 key_offset = STA_KEY_IDX_INVALID; 3502 3503 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); 3504 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); 3505 if (ret) { 3506 IWL_WARN(mvm, "set key failed\n"); 3507 key->hw_key_idx = STA_KEY_IDX_INVALID; 3508 /* 3509 * can't add key for RX, but we don't need it 3510 * in the device for TX so still return 0, 3511 * unless we have new TX API where we cannot 3512 * put key material into the TX_CMD 3513 */ 3514 if (iwl_mvm_has_new_tx_api(mvm)) 3515 ret = -EOPNOTSUPP; 3516 else 3517 ret = 0; 3518 } 3519 3520 break; 3521 case DISABLE_KEY: 3522 ret = -ENOENT; 3523 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) { 3524 if (mvmvif->ap_early_keys[i] == key) { 3525 mvmvif->ap_early_keys[i] = NULL; 3526 ret = 0; 3527 } 3528 } 3529 3530 /* found in pending list - don't do anything else */ 3531 if (ret == 0) 3532 break; 3533 3534 if (key->hw_key_idx == STA_KEY_IDX_INVALID) { 3535 ret = 0; 3536 break; 3537 } 3538 3539 if (sta && iwl_mvm_has_new_rx_api(mvm) && 3540 key->flags & IEEE80211_KEY_FLAG_PAIRWISE && 3541 (key->cipher == WLAN_CIPHER_SUITE_CCMP || 3542 key->cipher == WLAN_CIPHER_SUITE_GCMP || 3543 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { 3544 mvmsta = iwl_mvm_sta_from_mac80211(sta); 3545 ptk_pn = rcu_dereference_protected( 3546 mvmsta->ptk_pn[keyidx], 3547 lockdep_is_held(&mvm->mutex)); 3548 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); 3549 if (ptk_pn) 3550 kfree_rcu(ptk_pn, rcu_head); 3551 } 3552 3553 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); 3554 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); 3555 break; 3556 default: 3557 ret = -EINVAL; 3558 } 3559 3560 return ret; 3561 } 3562 3563 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, 3564 enum set_key_cmd cmd, 3565 struct ieee80211_vif *vif, 3566 struct ieee80211_sta *sta, 3567 struct ieee80211_key_conf *key) 3568 { 3569 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3570 int ret; 3571 3572 mutex_lock(&mvm->mutex); 3573 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key); 3574 mutex_unlock(&mvm->mutex); 3575 3576 return ret; 3577 } 3578 3579 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, 3580 struct ieee80211_vif *vif, 3581 struct ieee80211_key_conf *keyconf, 3582 struct ieee80211_sta *sta, 3583 u32 iv32, u16 *phase1key) 3584 { 3585 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3586 3587 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) 3588 return; 3589 3590 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); 3591 } 3592 3593 3594 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, 3595 struct iwl_rx_packet *pkt, void *data) 3596 { 3597 struct iwl_mvm *mvm = 3598 container_of(notif_wait, struct iwl_mvm, notif_wait); 3599 struct iwl_hs20_roc_res *resp; 3600 int resp_len = iwl_rx_packet_payload_len(pkt); 3601 struct iwl_mvm_time_event_data *te_data = data; 3602 3603 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) 3604 return true; 3605 3606 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 3607 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); 3608 return true; 3609 } 3610 3611 resp = (void *)pkt->data; 3612 3613 IWL_DEBUG_TE(mvm, 3614 "Aux ROC: Received response from ucode: status=%d uid=%d\n", 3615 resp->status, resp->event_unique_id); 3616 3617 te_data->uid = le32_to_cpu(resp->event_unique_id); 3618 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", 3619 te_data->uid); 3620 3621 spin_lock_bh(&mvm->time_event_lock); 3622 list_add_tail(&te_data->list, &mvm->aux_roc_te_list); 3623 spin_unlock_bh(&mvm->time_event_lock); 3624 3625 return true; 3626 } 3627 3628 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) 3629 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) 3630 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) 3631 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) 3632 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) 3633 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, 3634 struct ieee80211_channel *channel, 3635 struct ieee80211_vif *vif, 3636 int duration) 3637 { 3638 int res; 3639 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3640 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; 3641 static const u16 time_event_response[] = { HOT_SPOT_CMD }; 3642 struct iwl_notification_wait wait_time_event; 3643 u32 dtim_interval = vif->bss_conf.dtim_period * 3644 vif->bss_conf.beacon_int; 3645 u32 req_dur, delay; 3646 struct iwl_hs20_roc_req aux_roc_req = { 3647 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 3648 .id_and_color = 3649 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), 3650 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), 3651 }; 3652 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm, 3653 &aux_roc_req.channel_info); 3654 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm); 3655 3656 /* Set the channel info data */ 3657 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value, 3658 iwl_mvm_phy_band_from_nl80211(channel->band), 3659 PHY_VHT_CHANNEL_MODE20, 3660 0); 3661 3662 /* Set the time and duration */ 3663 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm)); 3664 3665 delay = AUX_ROC_MIN_DELAY; 3666 req_dur = MSEC_TO_TU(duration); 3667 3668 /* 3669 * If we are associated we want the delay time to be at least one 3670 * dtim interval so that the FW can wait until after the DTIM and 3671 * then start the time event, this will potentially allow us to 3672 * remain off-channel for the max duration. 3673 * Since we want to use almost a whole dtim interval we would also 3674 * like the delay to be for 2-3 dtim intervals, in case there are 3675 * other time events with higher priority. 3676 */ 3677 if (vif->bss_conf.assoc) { 3678 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); 3679 /* We cannot remain off-channel longer than the DTIM interval */ 3680 if (dtim_interval <= req_dur) { 3681 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; 3682 if (req_dur <= AUX_ROC_MIN_DURATION) 3683 req_dur = dtim_interval - 3684 AUX_ROC_MIN_SAFETY_BUFFER; 3685 } 3686 } 3687 3688 tail->duration = cpu_to_le32(req_dur); 3689 tail->apply_time_max_delay = cpu_to_le32(delay); 3690 3691 IWL_DEBUG_TE(mvm, 3692 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", 3693 channel->hw_value, req_dur, duration, delay, 3694 dtim_interval); 3695 /* Set the node address */ 3696 memcpy(tail->node_addr, vif->addr, ETH_ALEN); 3697 3698 lockdep_assert_held(&mvm->mutex); 3699 3700 spin_lock_bh(&mvm->time_event_lock); 3701 3702 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { 3703 spin_unlock_bh(&mvm->time_event_lock); 3704 return -EIO; 3705 } 3706 3707 te_data->vif = vif; 3708 te_data->duration = duration; 3709 te_data->id = HOT_SPOT_CMD; 3710 3711 spin_unlock_bh(&mvm->time_event_lock); 3712 3713 /* 3714 * Use a notification wait, which really just processes the 3715 * command response and doesn't wait for anything, in order 3716 * to be able to process the response and get the UID inside 3717 * the RX path. Using CMD_WANT_SKB doesn't work because it 3718 * stores the buffer and then wakes up this thread, by which 3719 * time another notification (that the time event started) 3720 * might already be processed unsuccessfully. 3721 */ 3722 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, 3723 time_event_response, 3724 ARRAY_SIZE(time_event_response), 3725 iwl_mvm_rx_aux_roc, te_data); 3726 3727 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len, 3728 &aux_roc_req); 3729 3730 if (res) { 3731 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); 3732 iwl_remove_notification(&mvm->notif_wait, &wait_time_event); 3733 goto out_clear_te; 3734 } 3735 3736 /* No need to wait for anything, so just pass 1 (0 isn't valid) */ 3737 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); 3738 /* should never fail */ 3739 WARN_ON_ONCE(res); 3740 3741 if (res) { 3742 out_clear_te: 3743 spin_lock_bh(&mvm->time_event_lock); 3744 iwl_mvm_te_clear_data(mvm, te_data); 3745 spin_unlock_bh(&mvm->time_event_lock); 3746 } 3747 3748 return res; 3749 } 3750 3751 static int iwl_mvm_roc(struct ieee80211_hw *hw, 3752 struct ieee80211_vif *vif, 3753 struct ieee80211_channel *channel, 3754 int duration, 3755 enum ieee80211_roc_type type) 3756 { 3757 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3758 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 3759 struct cfg80211_chan_def chandef; 3760 struct iwl_mvm_phy_ctxt *phy_ctxt; 3761 int ret, i; 3762 3763 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, 3764 duration, type); 3765 3766 /* 3767 * Flush the done work, just in case it's still pending, so that 3768 * the work it does can complete and we can accept new frames. 3769 */ 3770 flush_work(&mvm->roc_done_wk); 3771 3772 mutex_lock(&mvm->mutex); 3773 3774 switch (vif->type) { 3775 case NL80211_IFTYPE_STATION: 3776 if (fw_has_capa(&mvm->fw->ucode_capa, 3777 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { 3778 /* Use aux roc framework (HS20) */ 3779 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, 3780 vif, duration); 3781 goto out_unlock; 3782 } 3783 IWL_ERR(mvm, "hotspot not supported\n"); 3784 ret = -EINVAL; 3785 goto out_unlock; 3786 case NL80211_IFTYPE_P2P_DEVICE: 3787 /* handle below */ 3788 break; 3789 default: 3790 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); 3791 ret = -EINVAL; 3792 goto out_unlock; 3793 } 3794 3795 for (i = 0; i < NUM_PHY_CTX; i++) { 3796 phy_ctxt = &mvm->phy_ctxts[i]; 3797 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) 3798 continue; 3799 3800 if (phy_ctxt->ref && channel == phy_ctxt->channel) { 3801 /* 3802 * Unbind the P2P_DEVICE from the current PHY context, 3803 * and if the PHY context is not used remove it. 3804 */ 3805 ret = iwl_mvm_binding_remove_vif(mvm, vif); 3806 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3807 goto out_unlock; 3808 3809 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3810 3811 /* Bind the P2P_DEVICE to the current PHY Context */ 3812 mvmvif->phy_ctxt = phy_ctxt; 3813 3814 ret = iwl_mvm_binding_add_vif(mvm, vif); 3815 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3816 goto out_unlock; 3817 3818 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3819 goto schedule_time_event; 3820 } 3821 } 3822 3823 /* Need to update the PHY context only if the ROC channel changed */ 3824 if (channel == mvmvif->phy_ctxt->channel) 3825 goto schedule_time_event; 3826 3827 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); 3828 3829 /* 3830 * Change the PHY context configuration as it is currently referenced 3831 * only by the P2P Device MAC 3832 */ 3833 if (mvmvif->phy_ctxt->ref == 1) { 3834 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, 3835 &chandef, 1, 1); 3836 if (ret) 3837 goto out_unlock; 3838 } else { 3839 /* 3840 * The PHY context is shared with other MACs. Need to remove the 3841 * P2P Device from the binding, allocate an new PHY context and 3842 * create a new binding 3843 */ 3844 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3845 if (!phy_ctxt) { 3846 ret = -ENOSPC; 3847 goto out_unlock; 3848 } 3849 3850 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, 3851 1, 1); 3852 if (ret) { 3853 IWL_ERR(mvm, "Failed to change PHY context\n"); 3854 goto out_unlock; 3855 } 3856 3857 /* Unbind the P2P_DEVICE from the current PHY context */ 3858 ret = iwl_mvm_binding_remove_vif(mvm, vif); 3859 if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) 3860 goto out_unlock; 3861 3862 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); 3863 3864 /* Bind the P2P_DEVICE to the new allocated PHY context */ 3865 mvmvif->phy_ctxt = phy_ctxt; 3866 3867 ret = iwl_mvm_binding_add_vif(mvm, vif); 3868 if (WARN(ret, "Failed binding P2P_DEVICE\n")) 3869 goto out_unlock; 3870 3871 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); 3872 } 3873 3874 schedule_time_event: 3875 /* Schedule the time events */ 3876 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); 3877 3878 out_unlock: 3879 mutex_unlock(&mvm->mutex); 3880 IWL_DEBUG_MAC80211(mvm, "leave\n"); 3881 return ret; 3882 } 3883 3884 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw, 3885 struct ieee80211_vif *vif) 3886 { 3887 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3888 3889 IWL_DEBUG_MAC80211(mvm, "enter\n"); 3890 3891 mutex_lock(&mvm->mutex); 3892 iwl_mvm_stop_roc(mvm, vif); 3893 mutex_unlock(&mvm->mutex); 3894 3895 IWL_DEBUG_MAC80211(mvm, "leave\n"); 3896 return 0; 3897 } 3898 3899 struct iwl_mvm_ftm_responder_iter_data { 3900 bool responder; 3901 struct ieee80211_chanctx_conf *ctx; 3902 }; 3903 3904 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac, 3905 struct ieee80211_vif *vif) 3906 { 3907 struct iwl_mvm_ftm_responder_iter_data *data = _data; 3908 3909 if (rcu_access_pointer(vif->chanctx_conf) == data->ctx && 3910 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params) 3911 data->responder = true; 3912 } 3913 3914 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm, 3915 struct ieee80211_chanctx_conf *ctx) 3916 { 3917 struct iwl_mvm_ftm_responder_iter_data data = { 3918 .responder = false, 3919 .ctx = ctx, 3920 }; 3921 3922 ieee80211_iterate_active_interfaces_atomic(mvm->hw, 3923 IEEE80211_IFACE_ITER_NORMAL, 3924 iwl_mvm_ftm_responder_chanctx_iter, 3925 &data); 3926 return data.responder; 3927 } 3928 3929 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, 3930 struct ieee80211_chanctx_conf *ctx) 3931 { 3932 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3933 struct iwl_mvm_phy_ctxt *phy_ctxt; 3934 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 3935 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 3936 int ret; 3937 3938 lockdep_assert_held(&mvm->mutex); 3939 3940 IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); 3941 3942 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); 3943 if (!phy_ctxt) { 3944 ret = -ENOSPC; 3945 goto out; 3946 } 3947 3948 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 3949 ctx->rx_chains_static, 3950 ctx->rx_chains_dynamic); 3951 if (ret) { 3952 IWL_ERR(mvm, "Failed to add PHY context\n"); 3953 goto out; 3954 } 3955 3956 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); 3957 *phy_ctxt_id = phy_ctxt->id; 3958 out: 3959 return ret; 3960 } 3961 3962 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, 3963 struct ieee80211_chanctx_conf *ctx) 3964 { 3965 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3966 int ret; 3967 3968 mutex_lock(&mvm->mutex); 3969 ret = __iwl_mvm_add_chanctx(mvm, ctx); 3970 mutex_unlock(&mvm->mutex); 3971 3972 return ret; 3973 } 3974 3975 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, 3976 struct ieee80211_chanctx_conf *ctx) 3977 { 3978 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 3979 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 3980 3981 lockdep_assert_held(&mvm->mutex); 3982 3983 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); 3984 } 3985 3986 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, 3987 struct ieee80211_chanctx_conf *ctx) 3988 { 3989 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3990 3991 mutex_lock(&mvm->mutex); 3992 __iwl_mvm_remove_chanctx(mvm, ctx); 3993 mutex_unlock(&mvm->mutex); 3994 } 3995 3996 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, 3997 struct ieee80211_chanctx_conf *ctx, 3998 u32 changed) 3999 { 4000 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4001 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4002 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4003 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx); 4004 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def; 4005 4006 if (WARN_ONCE((phy_ctxt->ref > 1) && 4007 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | 4008 IEEE80211_CHANCTX_CHANGE_RX_CHAINS | 4009 IEEE80211_CHANCTX_CHANGE_RADAR | 4010 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), 4011 "Cannot change PHY. Ref=%d, changed=0x%X\n", 4012 phy_ctxt->ref, changed)) 4013 return; 4014 4015 mutex_lock(&mvm->mutex); 4016 4017 /* we are only changing the min_width, may be a noop */ 4018 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { 4019 if (phy_ctxt->width == def->width) 4020 goto out_unlock; 4021 4022 /* we are just toggling between 20_NOHT and 20 */ 4023 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && 4024 def->width <= NL80211_CHAN_WIDTH_20) 4025 goto out_unlock; 4026 } 4027 4028 iwl_mvm_bt_coex_vif_change(mvm); 4029 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, 4030 ctx->rx_chains_static, 4031 ctx->rx_chains_dynamic); 4032 4033 out_unlock: 4034 mutex_unlock(&mvm->mutex); 4035 } 4036 4037 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, 4038 struct ieee80211_vif *vif, 4039 struct ieee80211_chanctx_conf *ctx, 4040 bool switching_chanctx) 4041 { 4042 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; 4043 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; 4044 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4045 int ret; 4046 4047 lockdep_assert_held(&mvm->mutex); 4048 4049 mvmvif->phy_ctxt = phy_ctxt; 4050 4051 switch (vif->type) { 4052 case NL80211_IFTYPE_AP: 4053 /* only needed if we're switching chanctx (i.e. during CSA) */ 4054 if (switching_chanctx) { 4055 mvmvif->ap_ibss_active = true; 4056 break; 4057 } 4058 /* fall through */ 4059 case NL80211_IFTYPE_ADHOC: 4060 /* 4061 * The AP binding flow is handled as part of the start_ap flow 4062 * (in bss_info_changed), similarly for IBSS. 4063 */ 4064 ret = 0; 4065 goto out; 4066 case NL80211_IFTYPE_STATION: 4067 mvmvif->csa_bcn_pending = false; 4068 break; 4069 case NL80211_IFTYPE_MONITOR: 4070 /* always disable PS when a monitor interface is active */ 4071 mvmvif->ps_disabled = true; 4072 break; 4073 default: 4074 ret = -EINVAL; 4075 goto out; 4076 } 4077 4078 ret = iwl_mvm_binding_add_vif(mvm, vif); 4079 if (ret) 4080 goto out; 4081 4082 /* 4083 * Power state must be updated before quotas, 4084 * otherwise fw will complain. 4085 */ 4086 iwl_mvm_power_update_mac(mvm); 4087 4088 /* Setting the quota at this stage is only required for monitor 4089 * interfaces. For the other types, the bss_info changed flow 4090 * will handle quota settings. 4091 */ 4092 if (vif->type == NL80211_IFTYPE_MONITOR) { 4093 mvmvif->monitor_active = true; 4094 ret = iwl_mvm_update_quotas(mvm, false, NULL); 4095 if (ret) 4096 goto out_remove_binding; 4097 4098 ret = iwl_mvm_add_snif_sta(mvm, vif); 4099 if (ret) 4100 goto out_remove_binding; 4101 4102 } 4103 4104 /* Handle binding during CSA */ 4105 if (vif->type == NL80211_IFTYPE_AP) { 4106 iwl_mvm_update_quotas(mvm, false, NULL); 4107 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 4108 } 4109 4110 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { 4111 mvmvif->csa_bcn_pending = true; 4112 4113 if (!fw_has_capa(&mvm->fw->ucode_capa, 4114 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4115 u32 duration = 3 * vif->bss_conf.beacon_int; 4116 4117 /* Protect the session to make sure we hear the first 4118 * beacon on the new channel. 4119 */ 4120 iwl_mvm_protect_session(mvm, vif, duration, duration, 4121 vif->bss_conf.beacon_int / 2, 4122 true); 4123 } 4124 4125 iwl_mvm_update_quotas(mvm, false, NULL); 4126 } 4127 4128 goto out; 4129 4130 out_remove_binding: 4131 iwl_mvm_binding_remove_vif(mvm, vif); 4132 iwl_mvm_power_update_mac(mvm); 4133 out: 4134 if (ret) 4135 mvmvif->phy_ctxt = NULL; 4136 return ret; 4137 } 4138 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, 4139 struct ieee80211_vif *vif, 4140 struct ieee80211_chanctx_conf *ctx) 4141 { 4142 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4143 int ret; 4144 4145 mutex_lock(&mvm->mutex); 4146 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); 4147 mutex_unlock(&mvm->mutex); 4148 4149 return ret; 4150 } 4151 4152 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, 4153 struct ieee80211_vif *vif, 4154 struct ieee80211_chanctx_conf *ctx, 4155 bool switching_chanctx) 4156 { 4157 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4158 struct ieee80211_vif *disabled_vif = NULL; 4159 4160 lockdep_assert_held(&mvm->mutex); 4161 4162 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); 4163 4164 switch (vif->type) { 4165 case NL80211_IFTYPE_ADHOC: 4166 goto out; 4167 case NL80211_IFTYPE_MONITOR: 4168 mvmvif->monitor_active = false; 4169 mvmvif->ps_disabled = false; 4170 iwl_mvm_rm_snif_sta(mvm, vif); 4171 break; 4172 case NL80211_IFTYPE_AP: 4173 /* This part is triggered only during CSA */ 4174 if (!switching_chanctx || !mvmvif->ap_ibss_active) 4175 goto out; 4176 4177 mvmvif->csa_countdown = false; 4178 4179 /* Set CS bit on all the stations */ 4180 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); 4181 4182 /* Save blocked iface, the timeout is set on the next beacon */ 4183 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); 4184 4185 mvmvif->ap_ibss_active = false; 4186 break; 4187 case NL80211_IFTYPE_STATION: 4188 if (!switching_chanctx) 4189 break; 4190 4191 disabled_vif = vif; 4192 4193 if (!fw_has_capa(&mvm->fw->ucode_capa, 4194 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) 4195 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); 4196 break; 4197 default: 4198 break; 4199 } 4200 4201 iwl_mvm_update_quotas(mvm, false, disabled_vif); 4202 iwl_mvm_binding_remove_vif(mvm, vif); 4203 4204 out: 4205 mvmvif->phy_ctxt = NULL; 4206 iwl_mvm_power_update_mac(mvm); 4207 } 4208 4209 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, 4210 struct ieee80211_vif *vif, 4211 struct ieee80211_chanctx_conf *ctx) 4212 { 4213 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4214 4215 mutex_lock(&mvm->mutex); 4216 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); 4217 mutex_unlock(&mvm->mutex); 4218 } 4219 4220 static int 4221 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, 4222 struct ieee80211_vif_chanctx_switch *vifs) 4223 { 4224 int ret; 4225 4226 mutex_lock(&mvm->mutex); 4227 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4228 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); 4229 4230 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); 4231 if (ret) { 4232 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); 4233 goto out_reassign; 4234 } 4235 4236 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4237 true); 4238 if (ret) { 4239 IWL_ERR(mvm, 4240 "failed to assign new_ctx during channel switch\n"); 4241 goto out_remove; 4242 } 4243 4244 /* we don't support TDLS during DCM - can be caused by channel switch */ 4245 if (iwl_mvm_phy_ctx_count(mvm) > 1) 4246 iwl_mvm_teardown_tdls_peers(mvm); 4247 4248 goto out; 4249 4250 out_remove: 4251 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); 4252 4253 out_reassign: 4254 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { 4255 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); 4256 goto out_restart; 4257 } 4258 4259 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4260 true)) { 4261 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4262 goto out_restart; 4263 } 4264 4265 goto out; 4266 4267 out_restart: 4268 /* things keep failing, better restart the hw */ 4269 iwl_mvm_nic_restart(mvm, false); 4270 4271 out: 4272 mutex_unlock(&mvm->mutex); 4273 4274 return ret; 4275 } 4276 4277 static int 4278 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, 4279 struct ieee80211_vif_chanctx_switch *vifs) 4280 { 4281 int ret; 4282 4283 mutex_lock(&mvm->mutex); 4284 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); 4285 4286 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, 4287 true); 4288 if (ret) { 4289 IWL_ERR(mvm, 4290 "failed to assign new_ctx during channel switch\n"); 4291 goto out_reassign; 4292 } 4293 4294 goto out; 4295 4296 out_reassign: 4297 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, 4298 true)) { 4299 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); 4300 goto out_restart; 4301 } 4302 4303 goto out; 4304 4305 out_restart: 4306 /* things keep failing, better restart the hw */ 4307 iwl_mvm_nic_restart(mvm, false); 4308 4309 out: 4310 mutex_unlock(&mvm->mutex); 4311 4312 return ret; 4313 } 4314 4315 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, 4316 struct ieee80211_vif_chanctx_switch *vifs, 4317 int n_vifs, 4318 enum ieee80211_chanctx_switch_mode mode) 4319 { 4320 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4321 int ret; 4322 4323 /* we only support a single-vif right now */ 4324 if (n_vifs > 1) 4325 return -EOPNOTSUPP; 4326 4327 switch (mode) { 4328 case CHANCTX_SWMODE_SWAP_CONTEXTS: 4329 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); 4330 break; 4331 case CHANCTX_SWMODE_REASSIGN_VIF: 4332 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); 4333 break; 4334 default: 4335 ret = -EOPNOTSUPP; 4336 break; 4337 } 4338 4339 return ret; 4340 } 4341 4342 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) 4343 { 4344 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4345 4346 return mvm->ibss_manager; 4347 } 4348 4349 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, 4350 struct ieee80211_sta *sta, 4351 bool set) 4352 { 4353 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4354 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); 4355 4356 if (!mvm_sta || !mvm_sta->vif) { 4357 IWL_ERR(mvm, "Station is not associated to a vif\n"); 4358 return -EINVAL; 4359 } 4360 4361 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); 4362 } 4363 4364 #ifdef CONFIG_NL80211_TESTMODE 4365 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { 4366 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, 4367 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, 4368 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, 4369 }; 4370 4371 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, 4372 struct ieee80211_vif *vif, 4373 void *data, int len) 4374 { 4375 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; 4376 int err; 4377 u32 noa_duration; 4378 4379 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len, 4380 iwl_mvm_tm_policy, NULL); 4381 if (err) 4382 return err; 4383 4384 if (!tb[IWL_MVM_TM_ATTR_CMD]) 4385 return -EINVAL; 4386 4387 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { 4388 case IWL_MVM_TM_CMD_SET_NOA: 4389 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || 4390 !vif->bss_conf.enable_beacon || 4391 !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) 4392 return -EINVAL; 4393 4394 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); 4395 if (noa_duration >= vif->bss_conf.beacon_int) 4396 return -EINVAL; 4397 4398 mvm->noa_duration = noa_duration; 4399 mvm->noa_vif = vif; 4400 4401 return iwl_mvm_update_quotas(mvm, true, NULL); 4402 case IWL_MVM_TM_CMD_SET_BEACON_FILTER: 4403 /* must be associated client vif - ignore authorized */ 4404 if (!vif || vif->type != NL80211_IFTYPE_STATION || 4405 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || 4406 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) 4407 return -EINVAL; 4408 4409 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) 4410 return iwl_mvm_enable_beacon_filter(mvm, vif, 0); 4411 return iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4412 } 4413 4414 return -EOPNOTSUPP; 4415 } 4416 4417 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, 4418 struct ieee80211_vif *vif, 4419 void *data, int len) 4420 { 4421 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4422 int err; 4423 4424 mutex_lock(&mvm->mutex); 4425 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); 4426 mutex_unlock(&mvm->mutex); 4427 4428 return err; 4429 } 4430 #endif 4431 4432 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, 4433 struct ieee80211_vif *vif, 4434 struct ieee80211_channel_switch *chsw) 4435 { 4436 /* By implementing this operation, we prevent mac80211 from 4437 * starting its own channel switch timer, so that we can call 4438 * ieee80211_chswitch_done() ourselves at the right time 4439 * (which is when the absence time event starts). 4440 */ 4441 4442 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), 4443 "dummy channel switch op\n"); 4444 } 4445 4446 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm, 4447 struct ieee80211_vif *vif, 4448 struct ieee80211_channel_switch *chsw) 4449 { 4450 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4451 struct iwl_chan_switch_te_cmd cmd = { 4452 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4453 mvmvif->color)), 4454 .action = cpu_to_le32(FW_CTXT_ACTION_ADD), 4455 .tsf = cpu_to_le32(chsw->timestamp), 4456 .cs_count = chsw->count, 4457 .cs_mode = chsw->block_tx, 4458 }; 4459 4460 lockdep_assert_held(&mvm->mutex); 4461 4462 if (chsw->delay) 4463 cmd.cs_delayed_bcn_count = 4464 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int); 4465 4466 return iwl_mvm_send_cmd_pdu(mvm, 4467 WIDE_ID(MAC_CONF_GROUP, 4468 CHANNEL_SWITCH_TIME_EVENT_CMD), 4469 0, sizeof(cmd), &cmd); 4470 } 4471 4472 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm, 4473 struct ieee80211_vif *vif, 4474 struct ieee80211_channel_switch *chsw) 4475 { 4476 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4477 u32 apply_time; 4478 4479 /* Schedule the time event to a bit before beacon 1, 4480 * to make sure we're in the new channel when the 4481 * GO/AP arrives. In case count <= 1 immediately schedule the 4482 * TE (this might result with some packet loss or connection 4483 * loss). 4484 */ 4485 if (chsw->count <= 1) 4486 apply_time = 0; 4487 else 4488 apply_time = chsw->device_timestamp + 4489 ((vif->bss_conf.beacon_int * (chsw->count - 1) - 4490 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); 4491 4492 if (chsw->block_tx) 4493 iwl_mvm_csa_client_absent(mvm, vif); 4494 4495 if (mvmvif->bf_data.bf_enabled) { 4496 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); 4497 4498 if (ret) 4499 return ret; 4500 } 4501 4502 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, 4503 apply_time); 4504 4505 return 0; 4506 } 4507 4508 #define IWL_MAX_CSA_BLOCK_TX 1500 4509 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, 4510 struct ieee80211_vif *vif, 4511 struct ieee80211_channel_switch *chsw) 4512 { 4513 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4514 struct ieee80211_vif *csa_vif; 4515 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4516 int ret; 4517 4518 mutex_lock(&mvm->mutex); 4519 4520 mvmvif->csa_failed = false; 4521 4522 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", 4523 chsw->chandef.center_freq1); 4524 4525 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, 4526 ieee80211_vif_to_wdev(vif), 4527 FW_DBG_TRIGGER_CHANNEL_SWITCH); 4528 4529 switch (vif->type) { 4530 case NL80211_IFTYPE_AP: 4531 csa_vif = 4532 rcu_dereference_protected(mvm->csa_vif, 4533 lockdep_is_held(&mvm->mutex)); 4534 if (WARN_ONCE(csa_vif && csa_vif->csa_active, 4535 "Another CSA is already in progress")) { 4536 ret = -EBUSY; 4537 goto out_unlock; 4538 } 4539 4540 /* we still didn't unblock tx. prevent new CS meanwhile */ 4541 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, 4542 lockdep_is_held(&mvm->mutex))) { 4543 ret = -EBUSY; 4544 goto out_unlock; 4545 } 4546 4547 rcu_assign_pointer(mvm->csa_vif, vif); 4548 4549 if (WARN_ONCE(mvmvif->csa_countdown, 4550 "Previous CSA countdown didn't complete")) { 4551 ret = -EBUSY; 4552 goto out_unlock; 4553 } 4554 4555 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; 4556 4557 break; 4558 case NL80211_IFTYPE_STATION: 4559 if (chsw->block_tx) { 4560 /* 4561 * In case of undetermined / long time with immediate 4562 * quiet monitor status to gracefully disconnect 4563 */ 4564 if (!chsw->count || 4565 chsw->count * vif->bss_conf.beacon_int > 4566 IWL_MAX_CSA_BLOCK_TX) 4567 schedule_delayed_work(&mvmvif->csa_work, 4568 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX)); 4569 } 4570 4571 if (!fw_has_capa(&mvm->fw->ucode_capa, 4572 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) { 4573 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw); 4574 if (ret) 4575 goto out_unlock; 4576 } else { 4577 iwl_mvm_schedule_client_csa(mvm, vif, chsw); 4578 } 4579 4580 mvmvif->csa_count = chsw->count; 4581 mvmvif->csa_misbehave = false; 4582 break; 4583 default: 4584 break; 4585 } 4586 4587 mvmvif->ps_disabled = true; 4588 4589 ret = iwl_mvm_power_update_ps(mvm); 4590 if (ret) 4591 goto out_unlock; 4592 4593 /* we won't be on this channel any longer */ 4594 iwl_mvm_teardown_tdls_peers(mvm); 4595 4596 out_unlock: 4597 mutex_unlock(&mvm->mutex); 4598 4599 return ret; 4600 } 4601 4602 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw, 4603 struct ieee80211_vif *vif, 4604 struct ieee80211_channel_switch *chsw) 4605 { 4606 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4607 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4608 struct iwl_chan_switch_te_cmd cmd = { 4609 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 4610 mvmvif->color)), 4611 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY), 4612 .tsf = cpu_to_le32(chsw->timestamp), 4613 .cs_count = chsw->count, 4614 .cs_mode = chsw->block_tx, 4615 }; 4616 4617 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY)) 4618 return; 4619 4620 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) { 4621 if (mvmvif->csa_misbehave) { 4622 /* Second time, give up on this AP*/ 4623 iwl_mvm_abort_channel_switch(hw, vif); 4624 ieee80211_chswitch_done(vif, false); 4625 mvmvif->csa_misbehave = false; 4626 return; 4627 } 4628 mvmvif->csa_misbehave = true; 4629 } 4630 mvmvif->csa_count = chsw->count; 4631 4632 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d\n", mvmvif->id); 4633 4634 WARN_ON(iwl_mvm_send_cmd_pdu(mvm, 4635 WIDE_ID(MAC_CONF_GROUP, 4636 CHANNEL_SWITCH_TIME_EVENT_CMD), 4637 CMD_ASYNC, sizeof(cmd), &cmd)); 4638 } 4639 4640 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) 4641 { 4642 int i; 4643 4644 if (!iwl_mvm_has_new_tx_api(mvm)) { 4645 if (drop) { 4646 mutex_lock(&mvm->mutex); 4647 iwl_mvm_flush_tx_path(mvm, 4648 iwl_mvm_flushable_queues(mvm) & queues, 0); 4649 mutex_unlock(&mvm->mutex); 4650 } else { 4651 iwl_trans_wait_tx_queues_empty(mvm->trans, queues); 4652 } 4653 return; 4654 } 4655 4656 mutex_lock(&mvm->mutex); 4657 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4658 struct ieee80211_sta *sta; 4659 4660 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4661 lockdep_is_held(&mvm->mutex)); 4662 if (IS_ERR_OR_NULL(sta)) 4663 continue; 4664 4665 if (drop) 4666 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF, 0); 4667 else 4668 iwl_mvm_wait_sta_queues_empty(mvm, 4669 iwl_mvm_sta_from_mac80211(sta)); 4670 } 4671 mutex_unlock(&mvm->mutex); 4672 } 4673 4674 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, 4675 struct ieee80211_vif *vif, u32 queues, bool drop) 4676 { 4677 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4678 struct iwl_mvm_vif *mvmvif; 4679 struct iwl_mvm_sta *mvmsta; 4680 struct ieee80211_sta *sta; 4681 int i; 4682 u32 msk = 0; 4683 4684 if (!vif) { 4685 iwl_mvm_flush_no_vif(mvm, queues, drop); 4686 return; 4687 } 4688 4689 if (vif->type != NL80211_IFTYPE_STATION) 4690 return; 4691 4692 /* Make sure we're done with the deferred traffic before flushing */ 4693 flush_work(&mvm->add_stream_wk); 4694 4695 mutex_lock(&mvm->mutex); 4696 mvmvif = iwl_mvm_vif_from_mac80211(vif); 4697 4698 /* flush the AP-station and all TDLS peers */ 4699 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { 4700 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], 4701 lockdep_is_held(&mvm->mutex)); 4702 if (IS_ERR_OR_NULL(sta)) 4703 continue; 4704 4705 mvmsta = iwl_mvm_sta_from_mac80211(sta); 4706 if (mvmsta->vif != vif) 4707 continue; 4708 4709 /* make sure only TDLS peers or the AP are flushed */ 4710 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); 4711 4712 if (drop) { 4713 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0)) 4714 IWL_ERR(mvm, "flush request fail\n"); 4715 } else { 4716 msk |= mvmsta->tfd_queue_msk; 4717 if (iwl_mvm_has_new_tx_api(mvm)) 4718 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); 4719 } 4720 } 4721 4722 mutex_unlock(&mvm->mutex); 4723 4724 /* this can take a while, and we may need/want other operations 4725 * to succeed while doing this, so do it without the mutex held 4726 */ 4727 if (!drop && !iwl_mvm_has_new_tx_api(mvm)) 4728 iwl_trans_wait_tx_queues_empty(mvm->trans, msk); 4729 } 4730 4731 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, 4732 struct survey_info *survey) 4733 { 4734 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4735 int ret; 4736 4737 memset(survey, 0, sizeof(*survey)); 4738 4739 /* only support global statistics right now */ 4740 if (idx != 0) 4741 return -ENOENT; 4742 4743 if (!fw_has_capa(&mvm->fw->ucode_capa, 4744 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) 4745 return -ENOENT; 4746 4747 mutex_lock(&mvm->mutex); 4748 4749 if (iwl_mvm_firmware_running(mvm)) { 4750 ret = iwl_mvm_request_statistics(mvm, false); 4751 if (ret) 4752 goto out; 4753 } 4754 4755 survey->filled = SURVEY_INFO_TIME | 4756 SURVEY_INFO_TIME_RX | 4757 SURVEY_INFO_TIME_TX | 4758 SURVEY_INFO_TIME_SCAN; 4759 survey->time = mvm->accu_radio_stats.on_time_rf + 4760 mvm->radio_stats.on_time_rf; 4761 do_div(survey->time, USEC_PER_MSEC); 4762 4763 survey->time_rx = mvm->accu_radio_stats.rx_time + 4764 mvm->radio_stats.rx_time; 4765 do_div(survey->time_rx, USEC_PER_MSEC); 4766 4767 survey->time_tx = mvm->accu_radio_stats.tx_time + 4768 mvm->radio_stats.tx_time; 4769 do_div(survey->time_tx, USEC_PER_MSEC); 4770 4771 survey->time_scan = mvm->accu_radio_stats.on_time_scan + 4772 mvm->radio_stats.on_time_scan; 4773 do_div(survey->time_scan, USEC_PER_MSEC); 4774 4775 ret = 0; 4776 out: 4777 mutex_unlock(&mvm->mutex); 4778 return ret; 4779 } 4780 4781 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo) 4782 { 4783 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { 4784 case RATE_MCS_CHAN_WIDTH_20: 4785 rinfo->bw = RATE_INFO_BW_20; 4786 break; 4787 case RATE_MCS_CHAN_WIDTH_40: 4788 rinfo->bw = RATE_INFO_BW_40; 4789 break; 4790 case RATE_MCS_CHAN_WIDTH_80: 4791 rinfo->bw = RATE_INFO_BW_80; 4792 break; 4793 case RATE_MCS_CHAN_WIDTH_160: 4794 rinfo->bw = RATE_INFO_BW_160; 4795 break; 4796 } 4797 4798 if (rate_n_flags & RATE_MCS_HT_MSK) { 4799 rinfo->flags |= RATE_INFO_FLAGS_MCS; 4800 rinfo->mcs = u32_get_bits(rate_n_flags, RATE_HT_MCS_INDEX_MSK); 4801 rinfo->nss = u32_get_bits(rate_n_flags, 4802 RATE_HT_MCS_NSS_MSK) + 1; 4803 if (rate_n_flags & RATE_MCS_SGI_MSK) 4804 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 4805 } else if (rate_n_flags & RATE_MCS_VHT_MSK) { 4806 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 4807 rinfo->mcs = u32_get_bits(rate_n_flags, 4808 RATE_VHT_MCS_RATE_CODE_MSK); 4809 rinfo->nss = u32_get_bits(rate_n_flags, 4810 RATE_VHT_MCS_NSS_MSK) + 1; 4811 if (rate_n_flags & RATE_MCS_SGI_MSK) 4812 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 4813 } else if (rate_n_flags & RATE_MCS_HE_MSK) { 4814 u32 gi_ltf = u32_get_bits(rate_n_flags, 4815 RATE_MCS_HE_GI_LTF_MSK); 4816 4817 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS; 4818 rinfo->mcs = u32_get_bits(rate_n_flags, 4819 RATE_VHT_MCS_RATE_CODE_MSK); 4820 rinfo->nss = u32_get_bits(rate_n_flags, 4821 RATE_VHT_MCS_NSS_MSK) + 1; 4822 4823 if (rate_n_flags & RATE_MCS_HE_106T_MSK) { 4824 rinfo->bw = RATE_INFO_BW_HE_RU; 4825 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106; 4826 } 4827 4828 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) { 4829 case RATE_MCS_HE_TYPE_SU: 4830 case RATE_MCS_HE_TYPE_EXT_SU: 4831 if (gi_ltf == 0 || gi_ltf == 1) 4832 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4833 else if (gi_ltf == 2) 4834 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4835 else if (rate_n_flags & RATE_MCS_SGI_MSK) 4836 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4837 else 4838 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4839 break; 4840 case RATE_MCS_HE_TYPE_MU: 4841 if (gi_ltf == 0 || gi_ltf == 1) 4842 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8; 4843 else if (gi_ltf == 2) 4844 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4845 else 4846 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4847 break; 4848 case RATE_MCS_HE_TYPE_TRIG: 4849 if (gi_ltf == 0 || gi_ltf == 1) 4850 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6; 4851 else 4852 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2; 4853 break; 4854 } 4855 4856 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK) 4857 rinfo->he_dcm = 1; 4858 } else { 4859 switch (u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK)) { 4860 case IWL_RATE_1M_PLCP: 4861 rinfo->legacy = 10; 4862 break; 4863 case IWL_RATE_2M_PLCP: 4864 rinfo->legacy = 20; 4865 break; 4866 case IWL_RATE_5M_PLCP: 4867 rinfo->legacy = 55; 4868 break; 4869 case IWL_RATE_11M_PLCP: 4870 rinfo->legacy = 110; 4871 break; 4872 case IWL_RATE_6M_PLCP: 4873 rinfo->legacy = 60; 4874 break; 4875 case IWL_RATE_9M_PLCP: 4876 rinfo->legacy = 90; 4877 break; 4878 case IWL_RATE_12M_PLCP: 4879 rinfo->legacy = 120; 4880 break; 4881 case IWL_RATE_18M_PLCP: 4882 rinfo->legacy = 180; 4883 break; 4884 case IWL_RATE_24M_PLCP: 4885 rinfo->legacy = 240; 4886 break; 4887 case IWL_RATE_36M_PLCP: 4888 rinfo->legacy = 360; 4889 break; 4890 case IWL_RATE_48M_PLCP: 4891 rinfo->legacy = 480; 4892 break; 4893 case IWL_RATE_54M_PLCP: 4894 rinfo->legacy = 540; 4895 break; 4896 } 4897 } 4898 } 4899 4900 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, 4901 struct ieee80211_vif *vif, 4902 struct ieee80211_sta *sta, 4903 struct station_info *sinfo) 4904 { 4905 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 4906 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 4907 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 4908 4909 if (mvmsta->avg_energy) { 4910 sinfo->signal_avg = mvmsta->avg_energy; 4911 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 4912 } 4913 4914 if (iwl_mvm_has_tlc_offload(mvm)) { 4915 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw; 4916 4917 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate); 4918 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 4919 } 4920 4921 /* if beacon filtering isn't on mac80211 does it anyway */ 4922 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) 4923 return; 4924 4925 if (!vif->bss_conf.assoc) 4926 return; 4927 4928 mutex_lock(&mvm->mutex); 4929 4930 if (mvmvif->ap_sta_id != mvmsta->sta_id) 4931 goto unlock; 4932 4933 if (iwl_mvm_request_statistics(mvm, false)) 4934 goto unlock; 4935 4936 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + 4937 mvmvif->beacon_stats.accu_num_beacons; 4938 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX); 4939 if (mvmvif->beacon_stats.avg_signal) { 4940 /* firmware only reports a value after RXing a few beacons */ 4941 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; 4942 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG); 4943 } 4944 unlock: 4945 mutex_unlock(&mvm->mutex); 4946 } 4947 4948 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, 4949 struct ieee80211_vif *vif, 4950 const struct ieee80211_event *event) 4951 { 4952 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ 4953 do { \ 4954 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ 4955 break; \ 4956 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ 4957 } while (0) 4958 4959 struct iwl_fw_dbg_trigger_tlv *trig; 4960 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 4961 4962 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 4963 FW_DBG_TRIGGER_MLME); 4964 if (!trig) 4965 return; 4966 4967 trig_mlme = (void *)trig->data; 4968 4969 if (event->u.mlme.data == ASSOC_EVENT) { 4970 if (event->u.mlme.status == MLME_DENIED) 4971 CHECK_MLME_TRIGGER(stop_assoc_denied, 4972 "DENIED ASSOC: reason %d", 4973 event->u.mlme.reason); 4974 else if (event->u.mlme.status == MLME_TIMEOUT) 4975 CHECK_MLME_TRIGGER(stop_assoc_timeout, 4976 "ASSOC TIMEOUT"); 4977 } else if (event->u.mlme.data == AUTH_EVENT) { 4978 if (event->u.mlme.status == MLME_DENIED) 4979 CHECK_MLME_TRIGGER(stop_auth_denied, 4980 "DENIED AUTH: reason %d", 4981 event->u.mlme.reason); 4982 else if (event->u.mlme.status == MLME_TIMEOUT) 4983 CHECK_MLME_TRIGGER(stop_auth_timeout, 4984 "AUTH TIMEOUT"); 4985 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { 4986 CHECK_MLME_TRIGGER(stop_rx_deauth, 4987 "DEAUTH RX %d", event->u.mlme.reason); 4988 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { 4989 CHECK_MLME_TRIGGER(stop_tx_deauth, 4990 "DEAUTH TX %d", event->u.mlme.reason); 4991 } 4992 #undef CHECK_MLME_TRIGGER 4993 } 4994 4995 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, 4996 struct ieee80211_vif *vif, 4997 const struct ieee80211_event *event) 4998 { 4999 struct iwl_fw_dbg_trigger_tlv *trig; 5000 struct iwl_fw_dbg_trigger_ba *ba_trig; 5001 5002 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), 5003 FW_DBG_TRIGGER_BA); 5004 if (!trig) 5005 return; 5006 5007 ba_trig = (void *)trig->data; 5008 5009 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) 5010 return; 5011 5012 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 5013 "BAR received from %pM, tid %d, ssn %d", 5014 event->u.ba.sta->addr, event->u.ba.tid, 5015 event->u.ba.ssn); 5016 } 5017 5018 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, 5019 struct ieee80211_vif *vif, 5020 const struct ieee80211_event *event) 5021 { 5022 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5023 5024 switch (event->type) { 5025 case MLME_EVENT: 5026 iwl_mvm_event_mlme_callback(mvm, vif, event); 5027 break; 5028 case BAR_RX_EVENT: 5029 iwl_mvm_event_bar_rx_callback(mvm, vif, event); 5030 break; 5031 case BA_FRAME_TIMEOUT: 5032 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, 5033 event->u.ba.tid); 5034 break; 5035 default: 5036 break; 5037 } 5038 } 5039 5040 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, 5041 struct iwl_mvm_internal_rxq_notif *notif, 5042 u32 size) 5043 { 5044 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1; 5045 int ret; 5046 5047 5048 if (!iwl_mvm_has_new_rx_api(mvm)) 5049 return; 5050 5051 if (notif->sync) { 5052 notif->cookie = mvm->queue_sync_cookie; 5053 atomic_set(&mvm->queue_sync_counter, 5054 mvm->trans->num_rx_queues); 5055 } 5056 5057 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, 5058 size, !notif->sync); 5059 if (ret) { 5060 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); 5061 goto out; 5062 } 5063 5064 if (notif->sync) { 5065 lockdep_assert_held(&mvm->mutex); 5066 ret = wait_event_timeout(mvm->rx_sync_waitq, 5067 atomic_read(&mvm->queue_sync_counter) == 0 || 5068 iwl_mvm_is_radio_killed(mvm), 5069 HZ); 5070 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm)); 5071 } 5072 5073 out: 5074 atomic_set(&mvm->queue_sync_counter, 0); 5075 if (notif->sync) 5076 mvm->queue_sync_cookie++; 5077 } 5078 5079 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) 5080 { 5081 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5082 struct iwl_mvm_internal_rxq_notif data = { 5083 .type = IWL_MVM_RXQ_EMPTY, 5084 .sync = 1, 5085 }; 5086 5087 mutex_lock(&mvm->mutex); 5088 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data)); 5089 mutex_unlock(&mvm->mutex); 5090 } 5091 5092 static int 5093 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw, 5094 struct ieee80211_vif *vif, 5095 struct cfg80211_ftm_responder_stats *stats) 5096 { 5097 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5098 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 5099 5100 if (vif->p2p || vif->type != NL80211_IFTYPE_AP || 5101 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder) 5102 return -EINVAL; 5103 5104 mutex_lock(&mvm->mutex); 5105 *stats = mvm->ftm_resp_stats; 5106 mutex_unlock(&mvm->mutex); 5107 5108 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) | 5109 BIT(NL80211_FTM_STATS_PARTIAL_NUM) | 5110 BIT(NL80211_FTM_STATS_FAILED_NUM) | 5111 BIT(NL80211_FTM_STATS_ASAP_NUM) | 5112 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) | 5113 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) | 5114 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) | 5115 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) | 5116 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM); 5117 5118 return 0; 5119 } 5120 5121 static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, 5122 struct ieee80211_vif *vif, 5123 struct cfg80211_pmsr_request *request) 5124 { 5125 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5126 int ret; 5127 5128 mutex_lock(&mvm->mutex); 5129 ret = iwl_mvm_ftm_start(mvm, vif, request); 5130 mutex_unlock(&mvm->mutex); 5131 5132 return ret; 5133 } 5134 5135 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, 5136 struct ieee80211_vif *vif, 5137 struct cfg80211_pmsr_request *request) 5138 { 5139 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5140 5141 mutex_lock(&mvm->mutex); 5142 iwl_mvm_ftm_abort(mvm, request); 5143 mutex_unlock(&mvm->mutex); 5144 } 5145 5146 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb) 5147 { 5148 u8 protocol = ip_hdr(skb)->protocol; 5149 5150 if (!IS_ENABLED(CONFIG_INET)) 5151 return false; 5152 5153 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP; 5154 } 5155 5156 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw, 5157 struct sk_buff *head, 5158 struct sk_buff *skb) 5159 { 5160 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 5161 5162 /* For now don't aggregate IPv6 in AMSDU */ 5163 if (skb->protocol != htons(ETH_P_IP)) 5164 return false; 5165 5166 if (!iwl_mvm_is_csum_supported(mvm)) 5167 return true; 5168 5169 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head); 5170 } 5171 5172 const struct ieee80211_ops iwl_mvm_hw_ops = { 5173 .tx = iwl_mvm_mac_tx, 5174 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue, 5175 .ampdu_action = iwl_mvm_mac_ampdu_action, 5176 .get_antenna = iwl_mvm_op_get_antenna, 5177 .start = iwl_mvm_mac_start, 5178 .reconfig_complete = iwl_mvm_mac_reconfig_complete, 5179 .stop = iwl_mvm_mac_stop, 5180 .add_interface = iwl_mvm_mac_add_interface, 5181 .remove_interface = iwl_mvm_mac_remove_interface, 5182 .config = iwl_mvm_mac_config, 5183 .prepare_multicast = iwl_mvm_prepare_multicast, 5184 .configure_filter = iwl_mvm_configure_filter, 5185 .config_iface_filter = iwl_mvm_config_iface_filter, 5186 .bss_info_changed = iwl_mvm_bss_info_changed, 5187 .hw_scan = iwl_mvm_mac_hw_scan, 5188 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, 5189 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, 5190 .sta_state = iwl_mvm_mac_sta_state, 5191 .sta_notify = iwl_mvm_mac_sta_notify, 5192 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, 5193 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, 5194 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, 5195 .sta_rc_update = iwl_mvm_sta_rc_update, 5196 .conf_tx = iwl_mvm_mac_conf_tx, 5197 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, 5198 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, 5199 .flush = iwl_mvm_mac_flush, 5200 .sched_scan_start = iwl_mvm_mac_sched_scan_start, 5201 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, 5202 .set_key = iwl_mvm_mac_set_key, 5203 .update_tkip_key = iwl_mvm_mac_update_tkip_key, 5204 .remain_on_channel = iwl_mvm_roc, 5205 .cancel_remain_on_channel = iwl_mvm_cancel_roc, 5206 .add_chanctx = iwl_mvm_add_chanctx, 5207 .remove_chanctx = iwl_mvm_remove_chanctx, 5208 .change_chanctx = iwl_mvm_change_chanctx, 5209 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, 5210 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, 5211 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, 5212 5213 .start_ap = iwl_mvm_start_ap_ibss, 5214 .stop_ap = iwl_mvm_stop_ap_ibss, 5215 .join_ibss = iwl_mvm_start_ap_ibss, 5216 .leave_ibss = iwl_mvm_stop_ap_ibss, 5217 5218 .tx_last_beacon = iwl_mvm_tx_last_beacon, 5219 5220 .set_tim = iwl_mvm_set_tim, 5221 5222 .channel_switch = iwl_mvm_channel_switch, 5223 .pre_channel_switch = iwl_mvm_pre_channel_switch, 5224 .post_channel_switch = iwl_mvm_post_channel_switch, 5225 .abort_channel_switch = iwl_mvm_abort_channel_switch, 5226 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon, 5227 5228 .tdls_channel_switch = iwl_mvm_tdls_channel_switch, 5229 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, 5230 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, 5231 5232 .event_callback = iwl_mvm_mac_event_callback, 5233 5234 .sync_rx_queues = iwl_mvm_sync_rx_queues, 5235 5236 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) 5237 5238 #ifdef CONFIG_PM_SLEEP 5239 /* look at d3.c */ 5240 .suspend = iwl_mvm_suspend, 5241 .resume = iwl_mvm_resume, 5242 .set_wakeup = iwl_mvm_set_wakeup, 5243 .set_rekey_data = iwl_mvm_set_rekey_data, 5244 #if IS_ENABLED(CONFIG_IPV6) 5245 .ipv6_addr_change = iwl_mvm_ipv6_addr_change, 5246 #endif 5247 .set_default_unicast_key = iwl_mvm_set_default_unicast_key, 5248 #endif 5249 .get_survey = iwl_mvm_mac_get_survey, 5250 .sta_statistics = iwl_mvm_mac_sta_statistics, 5251 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats, 5252 .start_pmsr = iwl_mvm_start_pmsr, 5253 .abort_pmsr = iwl_mvm_abort_pmsr, 5254 5255 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate, 5256 #ifdef CONFIG_IWLWIFI_DEBUGFS 5257 .sta_add_debugfs = iwl_mvm_sta_add_debugfs, 5258 #endif 5259 }; 5260