drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c

   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) 2012 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  10  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  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.
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  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  24  * USA
  25  *
  26  * The full GNU General Public License is included in this distribution
  27  * in the file called COPYING.
  28  *
  29  * Contact Information:
  30  *  Intel Linux Wireless <linuxwifi@intel.com>
  31  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  32  *
  33  * BSD LICENSE
  34  *
  35  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  37  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  38  * All rights reserved.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  *
  44  *  * Redistributions of source code must retain the above copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  *  * Redistributions in binary form must reproduce the above copyright
  47  *    notice, this list of conditions and the following disclaimer in
  48  *    the documentation and/or other materials provided with the
  49  *    distribution.
  50  *  * Neither the name Intel Corporation nor the names of its
  51  *    contributors may be used to endorse or promote products derived
  52  *    from this software without specific prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  55  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  56  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  57  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  58  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  59  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  60  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  61  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  62  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  63  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  64  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  65  *
  66  *****************************************************************************/
  67 #include <linux/kernel.h>
  68 #include <linux/slab.h>
  69 #include <linux/skbuff.h>
  70 #include <linux/netdevice.h>
  71 #include <linux/etherdevice.h>
  72 #include <linux/ip.h>
  73 #include <linux/if_arp.h>
  74 #include <linux/time.h>
  75 #include <net/mac80211.h>
  76 #include <net/ieee80211_radiotap.h>
  77 #include <net/tcp.h>
  78
  79 #include "iwl-op-mode.h"
  80 #include "iwl-io.h"
  81 #include "mvm.h"
  82 #include "sta.h"
  83 #include "time-event.h"
  84 #include "iwl-eeprom-parse.h"
  85 #include "iwl-phy-db.h"
  86 #include "testmode.h"
  87 #include "fw/error-dump.h"
  88 #include "iwl-prph.h"
  89 #include "iwl-nvm-parse.h"
  90
  91 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
  92         {
  93                 .max = 1,
  94                 .types = BIT(NL80211_IFTYPE_STATION),
  95         },
  96         {
  97                 .max = 1,
  98                 .types = BIT(NL80211_IFTYPE_AP) |
  99                         BIT(NL80211_IFTYPE_P2P_CLIENT) |
 100                         BIT(NL80211_IFTYPE_P2P_GO),
 101         },
 102         {
 103                 .max = 1,
 104                 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
 105         },
 106 };
 107
 108 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
 109         {
 110                 .num_different_channels = 2,
 111                 .max_interfaces = 3,
 112                 .limits = iwl_mvm_limits,
 113                 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
 114         },
 115 };
 116
 117 #ifdef CONFIG_PM_SLEEP
 118 static const struct nl80211_wowlan_tcp_data_token_feature
 119 iwl_mvm_wowlan_tcp_token_feature = {
 120         .min_len = 0,
 121         .max_len = 255,
 122         .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
 123 };
 124
 125 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
 126         .tok = &iwl_mvm_wowlan_tcp_token_feature,
 127         .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
 128                             sizeof(struct ethhdr) -
 129                             sizeof(struct iphdr) -
 130                             sizeof(struct tcphdr),
 131         .data_interval_max = 65535, /* __le16 in API */
 132         .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
 133                             sizeof(struct ethhdr) -
 134                             sizeof(struct iphdr) -
 135                             sizeof(struct tcphdr),
 136         .seq = true,
 137 };
 138 #endif
 139
 140 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 141 /*
 142  * Use the reserved field to indicate magic values.
 143  * these values will only be used internally by the driver,
 144  * and won't make it to the fw (reserved will be 0).
 145  * BC_FILTER_MAGIC_IP - configure the val of this attribute to
 146  *      be the vif's ip address. in case there is not a single
 147  *      ip address (0, or more than 1), this attribute will
 148  *      be skipped.
 149  * BC_FILTER_MAGIC_MAC - set the val of this attribute to
 150  *      the LSB bytes of the vif's mac address
 151  */
 152 enum {
 153         BC_FILTER_MAGIC_NONE = 0,
 154         BC_FILTER_MAGIC_IP,
 155         BC_FILTER_MAGIC_MAC,
 156 };
 157
 158 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
 159         {
 160                 /* arp */
 161                 .discard = 0,
 162                 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
 163                 .attrs = {
 164                         {
 165                                 /* frame type - arp, hw type - ethernet */
 166                                 .offset_type =
 167                                         BCAST_FILTER_OFFSET_PAYLOAD_START,
 168                                 .offset = sizeof(rfc1042_header),
 169                                 .val = cpu_to_be32(0x08060001),
 170                                 .mask = cpu_to_be32(0xffffffff),
 171                         },
 172                         {
 173                                 /* arp dest ip */
 174                                 .offset_type =
 175                                         BCAST_FILTER_OFFSET_PAYLOAD_START,
 176                                 .offset = sizeof(rfc1042_header) + 2 +
 177                                           sizeof(struct arphdr) +
 178                                           ETH_ALEN + sizeof(__be32) +
 179                                           ETH_ALEN,
 180                                 .mask = cpu_to_be32(0xffffffff),
 181                                 /* mark it as special field */
 182                                 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
 183                         },
 184                 },
 185         },
 186         {
 187                 /* dhcp offer bcast */
 188                 .discard = 0,
 189                 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
 190                 .attrs = {
 191                         {
 192                                 /* udp dest port - 68 (bootp client)*/
 193                                 .offset_type = BCAST_FILTER_OFFSET_IP_END,
 194                                 .offset = offsetof(struct udphdr, dest),
 195                                 .val = cpu_to_be32(0x00440000),
 196                                 .mask = cpu_to_be32(0xffff0000),
 197                         },
 198                         {
 199                                 /* dhcp - lsb bytes of client hw address */
 200                                 .offset_type = BCAST_FILTER_OFFSET_IP_END,
 201                                 .offset = 38,
 202                                 .mask = cpu_to_be32(0xffffffff),
 203                                 /* mark it as special field */
 204                                 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
 205                         },
 206                 },
 207         },
 208         /* last filter must be empty */
 209         {},
 210 };
 211 #endif
 212
 213 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
 214 {
 215         if (!iwl_mvm_is_d0i3_supported(mvm))
 216                 return;
 217
 218         IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
 219         spin_lock_bh(&mvm->refs_lock);
 220         mvm->refs[ref_type]++;
 221         spin_unlock_bh(&mvm->refs_lock);
 222         iwl_trans_ref(mvm->trans);
 223 }
 224
 225 void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
 226 {
 227         if (!iwl_mvm_is_d0i3_supported(mvm))
 228                 return;
 229
 230         IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
 231         spin_lock_bh(&mvm->refs_lock);
 232         if (WARN_ON(!mvm->refs[ref_type])) {
 233                 spin_unlock_bh(&mvm->refs_lock);
 234                 return;
 235         }
 236         mvm->refs[ref_type]--;
 237         spin_unlock_bh(&mvm->refs_lock);
 238         iwl_trans_unref(mvm->trans);
 239 }
 240
 241 static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
 242                                      enum iwl_mvm_ref_type except_ref)
 243 {
 244         int i, j;
 245
 246         if (!iwl_mvm_is_d0i3_supported(mvm))
 247                 return;
 248
 249         spin_lock_bh(&mvm->refs_lock);
 250         for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
 251                 if (except_ref == i || !mvm->refs[i])
 252                         continue;
 253
 254                 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
 255                               i, mvm->refs[i]);
 256                 for (j = 0; j < mvm->refs[i]; j++)
 257                         iwl_trans_unref(mvm->trans);
 258                 mvm->refs[i] = 0;
 259         }
 260         spin_unlock_bh(&mvm->refs_lock);
 261 }
 262
 263 bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
 264 {
 265         int i;
 266         bool taken = false;
 267
 268         if (!iwl_mvm_is_d0i3_supported(mvm))
 269                 return true;
 270
 271         spin_lock_bh(&mvm->refs_lock);
 272         for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
 273                 if (mvm->refs[i]) {
 274                         taken = true;
 275                         break;
 276                 }
 277         }
 278         spin_unlock_bh(&mvm->refs_lock);
 279
 280         return taken;
 281 }
 282
 283 int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
 284 {
 285         iwl_mvm_ref(mvm, ref_type);
 286
 287         if (!wait_event_timeout(mvm->d0i3_exit_waitq,
 288                                 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
 289                                 HZ)) {
 290                 WARN_ON_ONCE(1);
 291                 iwl_mvm_unref(mvm, ref_type);
 292                 return -EIO;
 293         }
 294
 295         return 0;
 296 }
 297
 298 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
 299 {
 300         int i;
 301
 302         memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
 303         for (i = 0; i < NUM_PHY_CTX; i++) {
 304                 mvm->phy_ctxts[i].id = i;
 305                 mvm->phy_ctxts[i].ref = 0;
 306         }
 307 }
 308
 309 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
 310                                                   const char *alpha2,
 311                                                   enum iwl_mcc_source src_id,
 312                                                   bool *changed)
 313 {
 314         struct ieee80211_regdomain *regd = NULL;
 315         struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
 316         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 317         struct iwl_mcc_update_resp *resp;
 318
 319         IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
 320
 321         lockdep_assert_held(&mvm->mutex);
 322
 323         resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
 324         if (IS_ERR_OR_NULL(resp)) {
 325                 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
 326                               PTR_ERR_OR_ZERO(resp));
 327                 goto out;
 328         }
 329
 330         if (changed)
 331                 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
 332
 333         regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
 334                                       __le32_to_cpu(resp->n_channels),
 335                                       resp->channels,
 336                                       __le16_to_cpu(resp->mcc));
 337         /* Store the return source id */
 338         src_id = resp->source_id;
 339         kfree(resp);
 340         if (IS_ERR_OR_NULL(regd)) {
 341                 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
 342                               PTR_ERR_OR_ZERO(regd));
 343                 goto out;
 344         }
 345
 346         IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
 347                       regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
 348         mvm->lar_regdom_set = true;
 349         mvm->mcc_src = src_id;
 350
 351 out:
 352         return regd;
 353 }
 354
 355 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
 356 {
 357         bool changed;
 358         struct ieee80211_regdomain *regd;
 359
 360         if (!iwl_mvm_is_lar_supported(mvm))
 361                 return;
 362
 363         regd = iwl_mvm_get_current_regdomain(mvm, &changed);
 364         if (!IS_ERR_OR_NULL(regd)) {
 365                 /* only update the regulatory core if changed */
 366                 if (changed)
 367                         regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
 368
 369                 kfree(regd);
 370         }
 371 }
 372
 373 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
 374                                                           bool *changed)
 375 {
 376         return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
 377                                      iwl_mvm_is_wifi_mcc_supported(mvm) ?
 378                                      MCC_SOURCE_GET_CURRENT :
 379                                      MCC_SOURCE_OLD_FW, changed);
 380 }
 381
 382 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
 383 {
 384         enum iwl_mcc_source used_src;
 385         struct ieee80211_regdomain *regd;
 386         int ret;
 387         bool changed;
 388         const struct ieee80211_regdomain *r =
 389                         rtnl_dereference(mvm->hw->wiphy->regd);
 390
 391         if (!r)
 392                 return -ENOENT;
 393
 394         /* save the last source in case we overwrite it below */
 395         used_src = mvm->mcc_src;
 396         if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
 397                 /* Notify the firmware we support wifi location updates */
 398                 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
 399                 if (!IS_ERR_OR_NULL(regd))
 400                         kfree(regd);
 401         }
 402
 403         /* Now set our last stored MCC and source */
 404         regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
 405                                      &changed);
 406         if (IS_ERR_OR_NULL(regd))
 407                 return -EIO;
 408
 409         /* update cfg80211 if the regdomain was changed */
 410         if (changed)
 411                 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
 412         else
 413                 ret = 0;
 414
 415         kfree(regd);
 416         return ret;
 417 }
 418
 419 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 420 {
 421         struct ieee80211_hw *hw = mvm->hw;
 422         int num_mac, ret, i;
 423         static const u32 mvm_ciphers[] = {
 424                 WLAN_CIPHER_SUITE_WEP40,
 425                 WLAN_CIPHER_SUITE_WEP104,
 426                 WLAN_CIPHER_SUITE_TKIP,
 427                 WLAN_CIPHER_SUITE_CCMP,
 428         };
 429
 430         /* Tell mac80211 our characteristics */
 431         ieee80211_hw_set(hw, SIGNAL_DBM);
 432         ieee80211_hw_set(hw, SPECTRUM_MGMT);
 433         ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
 434         ieee80211_hw_set(hw, QUEUE_CONTROL);
 435         ieee80211_hw_set(hw, WANT_MONITOR_VIF);
 436         ieee80211_hw_set(hw, SUPPORTS_PS);
 437         ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
 438         ieee80211_hw_set(hw, AMPDU_AGGREGATION);
 439         ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
 440         ieee80211_hw_set(hw, CONNECTION_MONITOR);
 441         ieee80211_hw_set(hw, CHANCTX_STA_CSA);
 442         ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
 443         ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
 444         ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
 445         ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
 446         if (iwl_mvm_has_new_rx_api(mvm))
 447                 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
 448
 449         if (fw_has_capa(&mvm->fw->ucode_capa,
 450                         IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
 451                 ieee80211_hw_set(hw, AP_LINK_PS);
 452         } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
 453                 /*
 454                  * we absolutely need this for the new TX API since that comes
 455                  * with many more queues than the current code can deal with
 456                  * for station powersave
 457                  */
 458                 return -EINVAL;
 459         }
 460
 461         if (mvm->trans->num_rx_queues > 1)
 462                 ieee80211_hw_set(hw, USES_RSS);
 463
 464         if (mvm->trans->max_skb_frags)
 465                 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
 466
 467         hw->queues = IEEE80211_MAX_QUEUES;
 468         hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
 469         hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
 470                                     IEEE80211_RADIOTAP_MCS_HAVE_STBC;
 471         hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
 472                 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
 473
 474         hw->radiotap_timestamp.units_pos =
 475                 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
 476                 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
 477         /* this is the case for CCK frames, it's better (only 8) for OFDM */
 478         hw->radiotap_timestamp.accuracy = 22;
 479
 480         hw->rate_control_algorithm = "iwl-mvm-rs";
 481         hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
 482         hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
 483
 484         BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
 485         memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
 486         hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
 487         hw->wiphy->cipher_suites = mvm->ciphers;
 488
 489         if (iwl_mvm_has_new_rx_api(mvm)) {
 490                 mvm->ciphers[hw->wiphy->n_cipher_suites] =
 491                         WLAN_CIPHER_SUITE_GCMP;
 492                 hw->wiphy->n_cipher_suites++;
 493                 mvm->ciphers[hw->wiphy->n_cipher_suites] =
 494                         WLAN_CIPHER_SUITE_GCMP_256;
 495                 hw->wiphy->n_cipher_suites++;
 496         }
 497
 498         /* Enable 11w if software crypto is not enabled (as the
 499          * firmware will interpret some mgmt packets, so enabling it
 500          * with software crypto isn't safe).
 501          */
 502         if (!iwlwifi_mod_params.swcrypto) {
 503                 ieee80211_hw_set(hw, MFP_CAPABLE);
 504                 mvm->ciphers[hw->wiphy->n_cipher_suites] =
 505                         WLAN_CIPHER_SUITE_AES_CMAC;
 506                 hw->wiphy->n_cipher_suites++;
 507                 if (iwl_mvm_has_new_rx_api(mvm)) {
 508                         mvm->ciphers[hw->wiphy->n_cipher_suites] =
 509                                 WLAN_CIPHER_SUITE_BIP_GMAC_128;
 510                         hw->wiphy->n_cipher_suites++;
 511                         mvm->ciphers[hw->wiphy->n_cipher_suites] =
 512                                 WLAN_CIPHER_SUITE_BIP_GMAC_256;
 513                         hw->wiphy->n_cipher_suites++;
 514                 }
 515         }
 516
 517         /* currently FW API supports only one optional cipher scheme */
 518         if (mvm->fw->cs[0].cipher) {
 519                 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0];
 520                 struct ieee80211_cipher_scheme *cs = &mvm->cs[0];
 521
 522                 mvm->hw->n_cipher_schemes = 1;
 523
 524                 cs->cipher = le32_to_cpu(fwcs->cipher);
 525                 cs->iftype = BIT(NL80211_IFTYPE_STATION);
 526                 cs->hdr_len = fwcs->hdr_len;
 527                 cs->pn_len = fwcs->pn_len;
 528                 cs->pn_off = fwcs->pn_off;
 529                 cs->key_idx_off = fwcs->key_idx_off;
 530                 cs->key_idx_mask = fwcs->key_idx_mask;
 531                 cs->key_idx_shift = fwcs->key_idx_shift;
 532                 cs->mic_len = fwcs->mic_len;
 533
 534                 mvm->hw->cipher_schemes = mvm->cs;
 535                 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher;
 536                 hw->wiphy->n_cipher_suites++;
 537         }
 538
 539         ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
 540         hw->wiphy->features |=
 541                 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
 542                 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
 543                 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
 544
 545         hw->sta_data_size = sizeof(struct iwl_mvm_sta);
 546         hw->vif_data_size = sizeof(struct iwl_mvm_vif);
 547         hw->chanctx_data_size = sizeof(u16);
 548
 549         hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
 550                 BIT(NL80211_IFTYPE_P2P_CLIENT) |
 551                 BIT(NL80211_IFTYPE_AP) |
 552                 BIT(NL80211_IFTYPE_P2P_GO) |
 553                 BIT(NL80211_IFTYPE_P2P_DEVICE) |
 554                 BIT(NL80211_IFTYPE_ADHOC);
 555
 556         hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 557         hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
 558         if (iwl_mvm_is_lar_supported(mvm))
 559                 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
 560         else
 561                 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
 562                                                REGULATORY_DISABLE_BEACON_HINTS;
 563
 564         hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
 565         hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
 566
 567         hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
 568         hw->wiphy->n_iface_combinations =
 569                 ARRAY_SIZE(iwl_mvm_iface_combinations);
 570
 571         hw->wiphy->max_remain_on_channel_duration = 10000;
 572         hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
 573         /* we can compensate an offset of up to 3 channels = 15 MHz */
 574         hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
 575
 576         /* Extract MAC address */
 577         memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
 578         hw->wiphy->addresses = mvm->addresses;
 579         hw->wiphy->n_addresses = 1;
 580
 581         /* Extract additional MAC addresses if available */
 582         num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
 583                 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
 584
 585         for (i = 1; i < num_mac; i++) {
 586                 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
 587                        ETH_ALEN);
 588                 mvm->addresses[i].addr[5]++;
 589                 hw->wiphy->n_addresses++;
 590         }
 591
 592         iwl_mvm_reset_phy_ctxts(mvm);
 593
 594         hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
 595
 596         hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
 597
 598         BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
 599         BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
 600                      IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
 601
 602         if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
 603                 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
 604         else
 605                 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
 606
 607         if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
 608                 hw->wiphy->bands[NL80211_BAND_2GHZ] =
 609                         &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
 610         if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
 611                 hw->wiphy->bands[NL80211_BAND_5GHZ] =
 612                         &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
 613
 614                 if (fw_has_capa(&mvm->fw->ucode_capa,
 615                                 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
 616                     fw_has_api(&mvm->fw->ucode_capa,
 617                                IWL_UCODE_TLV_API_LQ_SS_PARAMS))
 618                         hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
 619                                 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
 620         }
 621
 622         hw->wiphy->hw_version = mvm->trans->hw_id;
 623
 624         if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
 625                 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
 626         else
 627                 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 628
 629         hw->wiphy->max_sched_scan_reqs = 1;
 630         hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
 631         hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
 632         /* we create the 802.11 header and zero length SSID IE. */
 633         hw->wiphy->max_sched_scan_ie_len =
 634                 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
 635         hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
 636         hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
 637
 638         /*
 639          * the firmware uses u8 for num of iterations, but 0xff is saved for
 640          * infinite loop, so the maximum number of iterations is actually 254.
 641          */
 642         hw->wiphy->max_sched_scan_plan_iterations = 254;
 643
 644         hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
 645                                NL80211_FEATURE_LOW_PRIORITY_SCAN |
 646                                NL80211_FEATURE_P2P_GO_OPPPS |
 647                                NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
 648                                NL80211_FEATURE_DYNAMIC_SMPS |
 649                                NL80211_FEATURE_STATIC_SMPS |
 650                                NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
 651
 652         if (fw_has_capa(&mvm->fw->ucode_capa,
 653                         IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
 654                 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
 655         if (fw_has_capa(&mvm->fw->ucode_capa,
 656                         IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
 657                 hw->wiphy->features |= NL80211_FEATURE_QUIET;
 658
 659         if (fw_has_capa(&mvm->fw->ucode_capa,
 660                         IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
 661                 hw->wiphy->features |=
 662                         NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
 663
 664         if (fw_has_capa(&mvm->fw->ucode_capa,
 665                         IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
 666                 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
 667
 668         if (fw_has_api(&mvm->fw->ucode_capa,
 669                        IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
 670                 wiphy_ext_feature_set(hw->wiphy,
 671                                       NL80211_EXT_FEATURE_SCAN_START_TIME);
 672                 wiphy_ext_feature_set(hw->wiphy,
 673                                       NL80211_EXT_FEATURE_BSS_PARENT_TSF);
 674                 wiphy_ext_feature_set(hw->wiphy,
 675                                       NL80211_EXT_FEATURE_SET_SCAN_DWELL);
 676         }
 677
 678         mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
 679
 680 #ifdef CONFIG_PM_SLEEP
 681         if (iwl_mvm_is_d0i3_supported(mvm) &&
 682             device_can_wakeup(mvm->trans->dev)) {
 683                 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
 684                 hw->wiphy->wowlan = &mvm->wowlan;
 685         }
 686
 687         if (mvm->fw->img[IWL_UCODE_WOWLAN].num_sec &&
 688             mvm->trans->ops->d3_suspend &&
 689             mvm->trans->ops->d3_resume &&
 690             device_can_wakeup(mvm->trans->dev)) {
 691                 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
 692                                      WIPHY_WOWLAN_DISCONNECT |
 693                                      WIPHY_WOWLAN_EAP_IDENTITY_REQ |
 694                                      WIPHY_WOWLAN_RFKILL_RELEASE |
 695                                      WIPHY_WOWLAN_NET_DETECT;
 696                 if (!iwlwifi_mod_params.swcrypto)
 697                         mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
 698                                              WIPHY_WOWLAN_GTK_REKEY_FAILURE |
 699                                              WIPHY_WOWLAN_4WAY_HANDSHAKE;
 700
 701                 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
 702                 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
 703                 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
 704                 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
 705                 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
 706                 hw->wiphy->wowlan = &mvm->wowlan;
 707         }
 708 #endif
 709
 710 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 711         /* assign default bcast filtering configuration */
 712         mvm->bcast_filters = iwl_mvm_default_bcast_filters;
 713 #endif
 714
 715         ret = iwl_mvm_leds_init(mvm);
 716         if (ret)
 717                 return ret;
 718
 719         if (fw_has_capa(&mvm->fw->ucode_capa,
 720                         IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
 721                 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
 722                 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
 723                 ieee80211_hw_set(hw, TDLS_WIDER_BW);
 724         }
 725
 726         if (fw_has_capa(&mvm->fw->ucode_capa,
 727                         IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
 728                 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
 729                 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
 730         }
 731
 732         hw->netdev_features |= mvm->cfg->features;
 733         if (!iwl_mvm_is_csum_supported(mvm)) {
 734                 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
 735                                          NETIF_F_RXCSUM);
 736                 /* We may support SW TX CSUM */
 737                 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
 738                         hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
 739         }
 740
 741         ret = ieee80211_register_hw(mvm->hw);
 742         if (ret)
 743                 iwl_mvm_leds_exit(mvm);
 744         mvm->init_status |= IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE;
 745
 746         if (mvm->cfg->vht_mu_mimo_supported)
 747                 wiphy_ext_feature_set(hw->wiphy,
 748                                       NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
 749
 750         return ret;
 751 }
 752
 753 static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
 754                              struct ieee80211_sta *sta,
 755                              struct sk_buff *skb)
 756 {
 757         struct iwl_mvm_sta *mvmsta;
 758         bool defer = false;
 759
 760         /*
 761          * double check the IN_D0I3 flag both before and after
 762          * taking the spinlock, in order to prevent taking
 763          * the spinlock when not needed.
 764          */
 765         if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
 766                 return false;
 767
 768         spin_lock(&mvm->d0i3_tx_lock);
 769         /*
 770          * testing the flag again ensures the skb dequeue
 771          * loop (on d0i3 exit) hasn't run yet.
 772          */
 773         if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
 774                 goto out;
 775
 776         mvmsta = iwl_mvm_sta_from_mac80211(sta);
 777         if (mvmsta->sta_id == IWL_MVM_INVALID_STA ||
 778             mvmsta->sta_id != mvm->d0i3_ap_sta_id)
 779                 goto out;
 780
 781         __skb_queue_tail(&mvm->d0i3_tx, skb);
 782         ieee80211_stop_queues(mvm->hw);
 783
 784         /* trigger wakeup */
 785         iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
 786         iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
 787
 788         defer = true;
 789 out:
 790         spin_unlock(&mvm->d0i3_tx_lock);
 791         return defer;
 792 }
 793
 794 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
 795                            struct ieee80211_tx_control *control,
 796                            struct sk_buff *skb)
 797 {
 798         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 799         struct ieee80211_sta *sta = control->sta;
 800         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 801         struct ieee80211_hdr *hdr = (void *)skb->data;
 802
 803         if (iwl_mvm_is_radio_killed(mvm)) {
 804                 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
 805                 goto drop;
 806         }
 807
 808         if (info->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
 809             !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
 810             !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
 811                 goto drop;
 812
 813         /* treat non-bufferable MMPDUs on AP interfaces as broadcast */
 814         if ((info->control.vif->type == NL80211_IFTYPE_AP ||
 815              info->control.vif->type == NL80211_IFTYPE_ADHOC) &&
 816             ieee80211_is_mgmt(hdr->frame_control) &&
 817             !ieee80211_is_bufferable_mmpdu(hdr->frame_control))
 818                 sta = NULL;
 819
 820         if (sta) {
 821                 if (iwl_mvm_defer_tx(mvm, sta, skb))
 822                         return;
 823                 if (iwl_mvm_tx_skb(mvm, skb, sta))
 824                         goto drop;
 825                 return;
 826         }
 827
 828         if (iwl_mvm_tx_skb_non_sta(mvm, skb))
 829                 goto drop;
 830         return;
 831  drop:
 832         ieee80211_free_txskb(hw, skb);
 833 }
 834
 835 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
 836 {
 837         if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
 838                 return false;
 839         return true;
 840 }
 841
 842 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
 843 {
 844         if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
 845                 return false;
 846         if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
 847                 return true;
 848
 849         /* enabled by default */
 850         return true;
 851 }
 852
 853 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...)           \
 854         do {                                                            \
 855                 if (!(le16_to_cpu(_tid_bm) & BIT(_tid)))                \
 856                         break;                                          \
 857                 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt);    \
 858         } while (0)
 859
 860 static void
 861 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 862                             struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
 863                             enum ieee80211_ampdu_mlme_action action)
 864 {
 865         struct iwl_fw_dbg_trigger_tlv *trig;
 866         struct iwl_fw_dbg_trigger_ba *ba_trig;
 867
 868         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
 869                 return;
 870
 871         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
 872         ba_trig = (void *)trig->data;
 873
 874         if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
 875                                            ieee80211_vif_to_wdev(vif), trig))
 876                 return;
 877
 878         switch (action) {
 879         case IEEE80211_AMPDU_TX_OPERATIONAL: {
 880                 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
 881                 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
 882
 883                 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
 884                                  "TX AGG START: MAC %pM tid %d ssn %d\n",
 885                                  sta->addr, tid, tid_data->ssn);
 886                 break;
 887                 }
 888         case IEEE80211_AMPDU_TX_STOP_CONT:
 889                 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
 890                                  "TX AGG STOP: MAC %pM tid %d\n",
 891                                  sta->addr, tid);
 892                 break;
 893         case IEEE80211_AMPDU_RX_START:
 894                 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
 895                                  "RX AGG START: MAC %pM tid %d ssn %d\n",
 896                                  sta->addr, tid, rx_ba_ssn);
 897                 break;
 898         case IEEE80211_AMPDU_RX_STOP:
 899                 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
 900                                  "RX AGG STOP: MAC %pM tid %d\n",
 901                                  sta->addr, tid);
 902                 break;
 903         default:
 904                 break;
 905         }
 906 }
 907
 908 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
 909                                     struct ieee80211_vif *vif,
 910                                     struct ieee80211_ampdu_params *params)
 911 {
 912         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 913         int ret;
 914         bool tx_agg_ref = false;
 915         struct ieee80211_sta *sta = params->sta;
 916         enum ieee80211_ampdu_mlme_action action = params->action;
 917         u16 tid = params->tid;
 918         u16 *ssn = &params->ssn;
 919         u8 buf_size = params->buf_size;
 920         bool amsdu = params->amsdu;
 921         u16 timeout = params->timeout;
 922
 923         IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
 924                      sta->addr, tid, action);
 925
 926         if (!(mvm->nvm_data->sku_cap_11n_enable))
 927                 return -EACCES;
 928
 929         /* return from D0i3 before starting a new Tx aggregation */
 930         switch (action) {
 931         case IEEE80211_AMPDU_TX_START:
 932         case IEEE80211_AMPDU_TX_STOP_CONT:
 933         case IEEE80211_AMPDU_TX_STOP_FLUSH:
 934         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 935         case IEEE80211_AMPDU_TX_OPERATIONAL:
 936                 /*
 937                  * for tx start, wait synchronously until D0i3 exit to
 938                  * get the correct sequence number for the tid.
 939                  * additionally, some other ampdu actions use direct
 940                  * target access, which is not handled automatically
 941                  * by the trans layer (unlike commands), so wait for
 942                  * d0i3 exit in these cases as well.
 943                  */
 944                 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
 945                 if (ret)
 946                         return ret;
 947
 948                 tx_agg_ref = true;
 949                 break;
 950         default:
 951                 break;
 952         }
 953
 954         mutex_lock(&mvm->mutex);
 955
 956         switch (action) {
 957         case IEEE80211_AMPDU_RX_START:
 958                 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
 959                         ret = -EINVAL;
 960                         break;
 961                 }
 962                 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
 963                                          timeout);
 964                 break;
 965         case IEEE80211_AMPDU_RX_STOP:
 966                 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
 967                                          timeout);
 968                 break;
 969         case IEEE80211_AMPDU_TX_START:
 970                 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
 971                         ret = -EINVAL;
 972                         break;
 973                 }
 974                 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
 975                 break;
 976         case IEEE80211_AMPDU_TX_STOP_CONT:
 977                 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
 978                 break;
 979         case IEEE80211_AMPDU_TX_STOP_FLUSH:
 980         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 981                 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
 982                 break;
 983         case IEEE80211_AMPDU_TX_OPERATIONAL:
 984                 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
 985                                               buf_size, amsdu);
 986                 break;
 987         default:
 988                 WARN_ON_ONCE(1);
 989                 ret = -EINVAL;
 990                 break;
 991         }
 992
 993         if (!ret) {
 994                 u16 rx_ba_ssn = 0;
 995
 996                 if (action == IEEE80211_AMPDU_RX_START)
 997                         rx_ba_ssn = *ssn;
 998
 999                 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1000                                             rx_ba_ssn, action);
1001         }
1002         mutex_unlock(&mvm->mutex);
1003
1004         /*
1005          * If the tid is marked as started, we won't use it for offloaded
1006          * traffic on the next D0i3 entry. It's safe to unref.
1007          */
1008         if (tx_agg_ref)
1009                 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
1010
1011         return ret;
1012 }
1013
1014 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1015                                      struct ieee80211_vif *vif)
1016 {
1017         struct iwl_mvm *mvm = data;
1018         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1019
1020         mvmvif->uploaded = false;
1021         mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
1022
1023         spin_lock_bh(&mvm->time_event_lock);
1024         iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1025         spin_unlock_bh(&mvm->time_event_lock);
1026
1027         mvmvif->phy_ctxt = NULL;
1028         memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
1029 }
1030
1031 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1032 {
1033         /* clear the D3 reconfig, we only need it to avoid dumping a
1034          * firmware coredump on reconfiguration, we shouldn't do that
1035          * on D3->D0 transition
1036          */
1037         if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1038                 mvm->fwrt.dump.desc = &iwl_dump_desc_assert;
1039                 iwl_fw_error_dump(&mvm->fwrt);
1040         }
1041
1042         /* cleanup all stale references (scan, roc), but keep the
1043          * ucode_down ref until reconfig is complete
1044          */
1045         iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1046
1047         iwl_mvm_stop_device(mvm);
1048
1049         mvm->scan_status = 0;
1050         mvm->ps_disabled = false;
1051         mvm->calibrating = false;
1052
1053         /* just in case one was running */
1054         iwl_mvm_cleanup_roc_te(mvm);
1055         ieee80211_remain_on_channel_expired(mvm->hw);
1056
1057         /*
1058          * cleanup all interfaces, even inactive ones, as some might have
1059          * gone down during the HW restart
1060          */
1061         ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
1062
1063         mvm->p2p_device_vif = NULL;
1064         mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA;
1065
1066         iwl_mvm_reset_phy_ctxts(mvm);
1067         memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1068         memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames));
1069         memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1070         memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1071
1072         ieee80211_wake_queues(mvm->hw);
1073
1074         /* clear any stale d0i3 state */
1075         clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1076
1077         mvm->vif_count = 0;
1078         mvm->rx_ba_sessions = 0;
1079         mvm->fwrt.dump.conf = FW_DBG_INVALID;
1080
1081         /* keep statistics ticking */
1082         iwl_mvm_accu_radio_stats(mvm);
1083 }
1084
1085 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1086 {
1087         int ret;
1088
1089         lockdep_assert_held(&mvm->mutex);
1090
1091         if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1092                 /*
1093                  * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1094                  * so later code will - from now on - see that we're doing it.
1095                  */
1096                 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1097                 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1098                 /* Clean up some internal and mac80211 state on restart */
1099                 iwl_mvm_restart_cleanup(mvm);
1100         } else {
1101                 /* Hold the reference to prevent runtime suspend while
1102                  * the start procedure runs.  It's a bit confusing
1103                  * that the UCODE_DOWN reference is taken, but it just
1104                  * means "UCODE is not UP yet". ( TODO: rename this
1105                  * reference).
1106                  */
1107                 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1108         }
1109         ret = iwl_mvm_up(mvm);
1110
1111         if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1112                 /* Something went wrong - we need to finish some cleanup
1113                  * that normally iwl_mvm_mac_restart_complete() below
1114                  * would do.
1115                  */
1116                 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1117                 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1118         }
1119
1120         return ret;
1121 }
1122
1123 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1124 {
1125         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1126         int ret;
1127
1128         /* Some hw restart cleanups must not hold the mutex */
1129         if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1130                 /*
1131                  * Make sure we are out of d0i3. This is needed
1132                  * to make sure the reference accounting is correct
1133                  * (and there is no stale d0i3_exit_work).
1134                  */
1135                 wait_event_timeout(mvm->d0i3_exit_waitq,
1136                                    !test_bit(IWL_MVM_STATUS_IN_D0I3,
1137                                              &mvm->status),
1138                                    HZ);
1139         }
1140
1141         mutex_lock(&mvm->mutex);
1142         ret = __iwl_mvm_mac_start(mvm);
1143         mutex_unlock(&mvm->mutex);
1144
1145         return ret;
1146 }
1147
1148 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1149 {
1150         int ret;
1151
1152         mutex_lock(&mvm->mutex);
1153
1154         clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1155         iwl_mvm_d0i3_enable_tx(mvm, NULL);
1156         ret = iwl_mvm_update_quotas(mvm, true, NULL);
1157         if (ret)
1158                 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1159                         ret);
1160
1161         /* allow transport/FW low power modes */
1162         iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1163
1164         /*
1165          * If we have TDLS peers, remove them. We don't know the last seqno/PN
1166          * of packets the FW sent out, so we must reconnect.
1167          */
1168         iwl_mvm_teardown_tdls_peers(mvm);
1169
1170         mutex_unlock(&mvm->mutex);
1171 }
1172
1173 static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1174 {
1175         if (iwl_mvm_is_d0i3_supported(mvm) &&
1176             iwl_mvm_enter_d0i3_on_suspend(mvm))
1177                 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1178                                               !test_bit(IWL_MVM_STATUS_IN_D0I3,
1179                                                         &mvm->status),
1180                                               HZ),
1181                           "D0i3 exit on resume timed out\n");
1182 }
1183
1184 static void
1185 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1186                               enum ieee80211_reconfig_type reconfig_type)
1187 {
1188         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1189
1190         switch (reconfig_type) {
1191         case IEEE80211_RECONFIG_TYPE_RESTART:
1192                 iwl_mvm_restart_complete(mvm);
1193                 break;
1194         case IEEE80211_RECONFIG_TYPE_SUSPEND:
1195                 iwl_mvm_resume_complete(mvm);
1196                 break;
1197         }
1198 }
1199
1200 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1201 {
1202         lockdep_assert_held(&mvm->mutex);
1203
1204         /* firmware counters are obviously reset now, but we shouldn't
1205          * partially track so also clear the fw_reset_accu counters.
1206          */
1207         memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1208
1209         /* async_handlers_wk is now blocked */
1210
1211         /*
1212          * The work item could be running or queued if the
1213          * ROC time event stops just as we get here.
1214          */
1215         flush_work(&mvm->roc_done_wk);
1216
1217         iwl_mvm_stop_device(mvm);
1218
1219         iwl_mvm_async_handlers_purge(mvm);
1220         /* async_handlers_list is empty and will stay empty: HW is stopped */
1221
1222         /* the fw is stopped, the aux sta is dead: clean up driver state */
1223         iwl_mvm_del_aux_sta(mvm);
1224
1225         /*
1226          * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1227          * won't be called in this case).
1228          * But make sure to cleanup interfaces that have gone down before/during
1229          * HW restart was requested.
1230          */
1231         if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1232                 ieee80211_iterate_interfaces(mvm->hw, 0,
1233                                              iwl_mvm_cleanup_iterator, mvm);
1234
1235         /* We shouldn't have any UIDs still set.  Loop over all the UIDs to
1236          * make sure there's nothing left there and warn if any is found.
1237          */
1238         if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1239                 int i;
1240
1241                 for (i = 0; i < mvm->max_scans; i++) {
1242                         if (WARN_ONCE(mvm->scan_uid_status[i],
1243                                       "UMAC scan UID %d status was not cleaned\n",
1244                                       i))
1245                                 mvm->scan_uid_status[i] = 0;
1246                 }
1247         }
1248 }
1249
1250 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1251 {
1252         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1253
1254         flush_work(&mvm->d0i3_exit_work);
1255         flush_work(&mvm->async_handlers_wk);
1256         flush_work(&mvm->add_stream_wk);
1257
1258         /*
1259          * Lock and clear the firmware running bit here already, so that
1260          * new commands coming in elsewhere, e.g. from debugfs, will not
1261          * be able to proceed. This is important here because one of those
1262          * debugfs files causes the firmware dump to be triggered, and if we
1263          * don't stop debugfs accesses before canceling that it could be
1264          * retriggered after we flush it but before we've cleared the bit.
1265          */
1266         clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1267
1268         iwl_fw_cancel_dump(&mvm->fwrt);
1269         cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
1270         cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
1271         iwl_fw_free_dump_desc(&mvm->fwrt);
1272
1273         mutex_lock(&mvm->mutex);
1274         __iwl_mvm_mac_stop(mvm);
1275         mutex_unlock(&mvm->mutex);
1276
1277         /*
1278          * The worker might have been waiting for the mutex, let it run and
1279          * discover that its list is now empty.
1280          */
1281         cancel_work_sync(&mvm->async_handlers_wk);
1282 }
1283
1284 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1285 {
1286         u16 i;
1287
1288         lockdep_assert_held(&mvm->mutex);
1289
1290         for (i = 0; i < NUM_PHY_CTX; i++)
1291                 if (!mvm->phy_ctxts[i].ref)
1292                         return &mvm->phy_ctxts[i];
1293
1294         IWL_ERR(mvm, "No available PHY context\n");
1295         return NULL;
1296 }
1297
1298 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1299                                 s16 tx_power)
1300 {
1301         struct iwl_dev_tx_power_cmd cmd = {
1302                 .v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1303                 .v3.mac_context_id =
1304                         cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1305                 .v3.pwr_restriction = cpu_to_le16(8 * tx_power),
1306         };
1307         int len = sizeof(cmd);
1308
1309         if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1310                 cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1311
1312         if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1313                 len = sizeof(cmd.v3);
1314
1315         return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
1316 }
1317
1318 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1319                                      struct ieee80211_vif *vif)
1320 {
1321         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1322         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1323         int ret;
1324
1325         mvmvif->mvm = mvm;
1326
1327         /*
1328          * make sure D0i3 exit is completed, otherwise a target access
1329          * during tx queue configuration could be done when still in
1330          * D0i3 state.
1331          */
1332         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1333         if (ret)
1334                 return ret;
1335
1336         /*
1337          * Not much to do here. The stack will not allow interface
1338          * types or combinations that we didn't advertise, so we
1339          * don't really have to check the types.
1340          */
1341
1342         mutex_lock(&mvm->mutex);
1343
1344         /* make sure that beacon statistics don't go backwards with FW reset */
1345         if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1346                 mvmvif->beacon_stats.accu_num_beacons +=
1347                         mvmvif->beacon_stats.num_beacons;
1348
1349         /* Allocate resources for the MAC context, and add it to the fw  */
1350         ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1351         if (ret)
1352                 goto out_unlock;
1353
1354         /* Counting number of interfaces is needed for legacy PM */
1355         if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1356                 mvm->vif_count++;
1357
1358         /*
1359          * The AP binding flow can be done only after the beacon
1360          * template is configured (which happens only in the mac80211
1361          * start_ap() flow), and adding the broadcast station can happen
1362          * only after the binding.
1363          * In addition, since modifying the MAC before adding a bcast
1364          * station is not allowed by the FW, delay the adding of MAC context to
1365          * the point where we can also add the bcast station.
1366          * In short: there's not much we can do at this point, other than
1367          * allocating resources :)
1368          */
1369         if (vif->type == NL80211_IFTYPE_AP ||
1370             vif->type == NL80211_IFTYPE_ADHOC) {
1371                 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1372                 if (ret) {
1373                         IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1374                         goto out_release;
1375                 }
1376
1377                 /*
1378                  * Only queue for this station is the mcast queue,
1379                  * which shouldn't be in TFD mask anyway
1380                  */
1381                 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta,
1382                                                0, vif->type,
1383                                                IWL_STA_MULTICAST);
1384                 if (ret)
1385                         goto out_release;
1386
1387                 iwl_mvm_vif_dbgfs_register(mvm, vif);
1388                 goto out_unlock;
1389         }
1390
1391         mvmvif->features |= hw->netdev_features;
1392
1393         ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1394         if (ret)
1395                 goto out_release;
1396
1397         ret = iwl_mvm_power_update_mac(mvm);
1398         if (ret)
1399                 goto out_remove_mac;
1400
1401         /* beacon filtering */
1402         ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1403         if (ret)
1404                 goto out_remove_mac;
1405
1406         if (!mvm->bf_allowed_vif &&
1407             vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1408                 mvm->bf_allowed_vif = mvmvif;
1409                 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1410                                      IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1411         }
1412
1413         /*
1414          * P2P_DEVICE interface does not have a channel context assigned to it,
1415          * so a dedicated PHY context is allocated to it and the corresponding
1416          * MAC context is bound to it at this stage.
1417          */
1418         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1419
1420                 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1421                 if (!mvmvif->phy_ctxt) {
1422                         ret = -ENOSPC;
1423                         goto out_free_bf;
1424                 }
1425
1426                 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1427                 ret = iwl_mvm_binding_add_vif(mvm, vif);
1428                 if (ret)
1429                         goto out_unref_phy;
1430
1431                 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif);
1432                 if (ret)
1433                         goto out_unbind;
1434
1435                 /* Save a pointer to p2p device vif, so it can later be used to
1436                  * update the p2p device MAC when a GO is started/stopped */
1437                 mvm->p2p_device_vif = vif;
1438         }
1439
1440         iwl_mvm_vif_dbgfs_register(mvm, vif);
1441         goto out_unlock;
1442
1443  out_unbind:
1444         iwl_mvm_binding_remove_vif(mvm, vif);
1445  out_unref_phy:
1446         iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1447  out_free_bf:
1448         if (mvm->bf_allowed_vif == mvmvif) {
1449                 mvm->bf_allowed_vif = NULL;
1450                 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1451                                        IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1452         }
1453  out_remove_mac:
1454         mvmvif->phy_ctxt = NULL;
1455         iwl_mvm_mac_ctxt_remove(mvm, vif);
1456  out_release:
1457         if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1458                 mvm->vif_count--;
1459  out_unlock:
1460         mutex_unlock(&mvm->mutex);
1461
1462         iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1463
1464         return ret;
1465 }
1466
1467 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1468                                         struct ieee80211_vif *vif)
1469 {
1470         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1471                 /*
1472                  * Flush the ROC worker which will flush the OFFCHANNEL queue.
1473                  * We assume here that all the packets sent to the OFFCHANNEL
1474                  * queue are sent in ROC session.
1475                  */
1476                 flush_work(&mvm->roc_done_wk);
1477         }
1478 }
1479
1480 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1481                                          struct ieee80211_vif *vif)
1482 {
1483         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1484         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1485
1486         iwl_mvm_prepare_mac_removal(mvm, vif);
1487
1488         mutex_lock(&mvm->mutex);
1489
1490         if (mvm->bf_allowed_vif == mvmvif) {
1491                 mvm->bf_allowed_vif = NULL;
1492                 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1493                                        IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1494         }
1495
1496         iwl_mvm_vif_dbgfs_clean(mvm, vif);
1497
1498         /*
1499          * For AP/GO interface, the tear down of the resources allocated to the
1500          * interface is be handled as part of the stop_ap flow.
1501          */
1502         if (vif->type == NL80211_IFTYPE_AP ||
1503             vif->type == NL80211_IFTYPE_ADHOC) {
1504 #ifdef CONFIG_NL80211_TESTMODE
1505                 if (vif == mvm->noa_vif) {
1506                         mvm->noa_vif = NULL;
1507                         mvm->noa_duration = 0;
1508                 }
1509 #endif
1510                 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta);
1511                 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1512                 goto out_release;
1513         }
1514
1515         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1516                 mvm->p2p_device_vif = NULL;
1517                 iwl_mvm_rm_p2p_bcast_sta(mvm, vif);
1518                 iwl_mvm_binding_remove_vif(mvm, vif);
1519                 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1520                 mvmvif->phy_ctxt = NULL;
1521         }
1522
1523         if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1524                 mvm->vif_count--;
1525
1526         iwl_mvm_power_update_mac(mvm);
1527         iwl_mvm_mac_ctxt_remove(mvm, vif);
1528
1529 out_release:
1530         mutex_unlock(&mvm->mutex);
1531 }
1532
1533 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1534 {
1535         return 0;
1536 }
1537
1538 struct iwl_mvm_mc_iter_data {
1539         struct iwl_mvm *mvm;
1540         int port_id;
1541 };
1542
1543 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1544                                       struct ieee80211_vif *vif)
1545 {
1546         struct iwl_mvm_mc_iter_data *data = _data;
1547         struct iwl_mvm *mvm = data->mvm;
1548         struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1549         int ret, len;
1550
1551         /* if we don't have free ports, mcast frames will be dropped */
1552         if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1553                 return;
1554
1555         if (vif->type != NL80211_IFTYPE_STATION ||
1556             !vif->bss_conf.assoc)
1557                 return;
1558
1559         cmd->port_id = data->port_id++;
1560         memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1561         len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1562
1563         ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
1564         if (ret)
1565                 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1566 }
1567
1568 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1569 {
1570         struct iwl_mvm_mc_iter_data iter_data = {
1571                 .mvm = mvm,
1572         };
1573
1574         lockdep_assert_held(&mvm->mutex);
1575
1576         if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1577                 return;
1578
1579         ieee80211_iterate_active_interfaces_atomic(
1580                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1581                 iwl_mvm_mc_iface_iterator, &iter_data);
1582 }
1583
1584 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1585                                      struct netdev_hw_addr_list *mc_list)
1586 {
1587         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1588         struct iwl_mcast_filter_cmd *cmd;
1589         struct netdev_hw_addr *addr;
1590         int addr_count;
1591         bool pass_all;
1592         int len;
1593
1594         addr_count = netdev_hw_addr_list_count(mc_list);
1595         pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1596                    IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1597         if (pass_all)
1598                 addr_count = 0;
1599
1600         len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1601         cmd = kzalloc(len, GFP_ATOMIC);
1602         if (!cmd)
1603                 return 0;
1604
1605         if (pass_all) {
1606                 cmd->pass_all = 1;
1607                 return (u64)(unsigned long)cmd;
1608         }
1609
1610         netdev_hw_addr_list_for_each(addr, mc_list) {
1611                 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1612                                    cmd->count, addr->addr);
1613                 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1614                        addr->addr, ETH_ALEN);
1615                 cmd->count++;
1616         }
1617
1618         return (u64)(unsigned long)cmd;
1619 }
1620
1621 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1622                                      unsigned int changed_flags,
1623                                      unsigned int *total_flags,
1624                                      u64 multicast)
1625 {
1626         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1627         struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1628
1629         mutex_lock(&mvm->mutex);
1630
1631         /* replace previous configuration */
1632         kfree(mvm->mcast_filter_cmd);
1633         mvm->mcast_filter_cmd = cmd;
1634
1635         if (!cmd)
1636                 goto out;
1637
1638         iwl_mvm_recalc_multicast(mvm);
1639 out:
1640         mutex_unlock(&mvm->mutex);
1641         *total_flags = 0;
1642 }
1643
1644 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1645                                         struct ieee80211_vif *vif,
1646                                         unsigned int filter_flags,
1647                                         unsigned int changed_flags)
1648 {
1649         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1650
1651         /* We support only filter for probe requests */
1652         if (!(changed_flags & FIF_PROBE_REQ))
1653                 return;
1654
1655         /* Supported only for p2p client interfaces */
1656         if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1657             !vif->p2p)
1658                 return;
1659
1660         mutex_lock(&mvm->mutex);
1661         iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1662         mutex_unlock(&mvm->mutex);
1663 }
1664
1665 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1666 struct iwl_bcast_iter_data {
1667         struct iwl_mvm *mvm;
1668         struct iwl_bcast_filter_cmd *cmd;
1669         u8 current_filter;
1670 };
1671
1672 static void
1673 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1674                          const struct iwl_fw_bcast_filter *in_filter,
1675                          struct iwl_fw_bcast_filter *out_filter)
1676 {
1677         struct iwl_fw_bcast_filter_attr *attr;
1678         int i;
1679
1680         memcpy(out_filter, in_filter, sizeof(*out_filter));
1681
1682         for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1683                 attr = &out_filter->attrs[i];
1684
1685                 if (!attr->mask)
1686                         break;
1687
1688                 switch (attr->reserved1) {
1689                 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1690                         if (vif->bss_conf.arp_addr_cnt != 1) {
1691                                 attr->mask = 0;
1692                                 continue;
1693                         }
1694
1695                         attr->val = vif->bss_conf.arp_addr_list[0];
1696                         break;
1697                 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1698                         attr->val = *(__be32 *)&vif->addr[2];
1699                         break;
1700                 default:
1701                         break;
1702                 }
1703                 attr->reserved1 = 0;
1704                 out_filter->num_attrs++;
1705         }
1706 }
1707
1708 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1709                                           struct ieee80211_vif *vif)
1710 {
1711         struct iwl_bcast_iter_data *data = _data;
1712         struct iwl_mvm *mvm = data->mvm;
1713         struct iwl_bcast_filter_cmd *cmd = data->cmd;
1714         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1715         struct iwl_fw_bcast_mac *bcast_mac;
1716         int i;
1717
1718         if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1719                 return;
1720
1721         bcast_mac = &cmd->macs[mvmvif->id];
1722
1723         /*
1724          * enable filtering only for associated stations, but not for P2P
1725          * Clients
1726          */
1727         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1728             !vif->bss_conf.assoc)
1729                 return;
1730
1731         bcast_mac->default_discard = 1;
1732
1733         /* copy all configured filters */
1734         for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1735                 /*
1736                  * Make sure we don't exceed our filters limit.
1737                  * if there is still a valid filter to be configured,
1738                  * be on the safe side and just allow bcast for this mac.
1739                  */
1740                 if (WARN_ON_ONCE(data->current_filter >=
1741                                  ARRAY_SIZE(cmd->filters))) {
1742                         bcast_mac->default_discard = 0;
1743                         bcast_mac->attached_filters = 0;
1744                         break;
1745                 }
1746
1747                 iwl_mvm_set_bcast_filter(vif,
1748                                          &mvm->bcast_filters[i],
1749                                          &cmd->filters[data->current_filter]);
1750
1751                 /* skip current filter if it contains no attributes */
1752                 if (!cmd->filters[data->current_filter].num_attrs)
1753                         continue;
1754
1755                 /* attach the filter to current mac */
1756                 bcast_mac->attached_filters |=
1757                                 cpu_to_le16(BIT(data->current_filter));
1758
1759                 data->current_filter++;
1760         }
1761 }
1762
1763 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1764                                     struct iwl_bcast_filter_cmd *cmd)
1765 {
1766         struct iwl_bcast_iter_data iter_data = {
1767                 .mvm = mvm,
1768                 .cmd = cmd,
1769         };
1770
1771         if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1772                 return false;
1773
1774         memset(cmd, 0, sizeof(*cmd));
1775         cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1776         cmd->max_macs = ARRAY_SIZE(cmd->macs);
1777
1778 #ifdef CONFIG_IWLWIFI_DEBUGFS
1779         /* use debugfs filters/macs if override is configured */
1780         if (mvm->dbgfs_bcast_filtering.override) {
1781                 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1782                        sizeof(cmd->filters));
1783                 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1784                        sizeof(cmd->macs));
1785                 return true;
1786         }
1787 #endif
1788
1789         /* if no filters are configured, do nothing */
1790         if (!mvm->bcast_filters)
1791                 return false;
1792
1793         /* configure and attach these filters for each associated sta vif */
1794         ieee80211_iterate_active_interfaces(
1795                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1796                 iwl_mvm_bcast_filter_iterator, &iter_data);
1797
1798         return true;
1799 }
1800
1801 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
1802 {
1803         struct iwl_bcast_filter_cmd cmd;
1804
1805         if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1806                 return 0;
1807
1808         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1809                 return 0;
1810
1811         return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1812                                     sizeof(cmd), &cmd);
1813 }
1814 #else
1815 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
1816 {
1817         return 0;
1818 }
1819 #endif
1820
1821 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1822                                     struct ieee80211_vif *vif)
1823 {
1824         struct iwl_mu_group_mgmt_cmd cmd = {};
1825
1826         memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1827                WLAN_MEMBERSHIP_LEN);
1828         memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1829                WLAN_USER_POSITION_LEN);
1830
1831         return iwl_mvm_send_cmd_pdu(mvm,
1832                                     WIDE_ID(DATA_PATH_GROUP,
1833                                             UPDATE_MU_GROUPS_CMD),
1834                                     0, sizeof(cmd), &cmd);
1835 }
1836
1837 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1838                                            struct ieee80211_vif *vif)
1839 {
1840         if (vif->mu_mimo_owner) {
1841                 struct iwl_mu_group_mgmt_notif *notif = _data;
1842
1843                 /*
1844                  * MU-MIMO Group Id action frame is little endian. We treat
1845                  * the data received from firmware as if it came from the
1846                  * action frame, so no conversion is needed.
1847                  */
1848                 ieee80211_update_mu_groups(vif,
1849                                            (u8 *)&notif->membership_status,
1850                                            (u8 *)&notif->user_position);
1851         }
1852 }
1853
1854 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1855                                struct iwl_rx_cmd_buffer *rxb)
1856 {
1857         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1858         struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1859
1860         ieee80211_iterate_active_interfaces_atomic(
1861                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1862                         iwl_mvm_mu_mimo_iface_iterator, notif);
1863 }
1864
1865 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1866                                              struct ieee80211_vif *vif,
1867                                              struct ieee80211_bss_conf *bss_conf,
1868                                              u32 changes)
1869 {
1870         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1871         int ret;
1872
1873         /*
1874          * Re-calculate the tsf id, as the master-slave relations depend on the
1875          * beacon interval, which was not known when the station interface was
1876          * added.
1877          */
1878         if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1879                 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1880
1881         if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc &&
1882             mvmvif->lqm_active)
1883                 iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT,
1884                                      0, 0);
1885
1886         /*
1887          * If we're not associated yet, take the (new) BSSID before associating
1888          * so the firmware knows. If we're already associated, then use the old
1889          * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1890          * branch for disassociation below.
1891          */
1892         if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1893                 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1894
1895         ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
1896         if (ret)
1897                 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1898
1899         /* after sending it once, adopt mac80211 data */
1900         memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1901         mvmvif->associated = bss_conf->assoc;
1902
1903         if (changes & BSS_CHANGED_ASSOC) {
1904                 if (bss_conf->assoc) {
1905                         /* clear statistics to get clean beacon counter */
1906                         iwl_mvm_request_statistics(mvm, true);
1907                         memset(&mvmvif->beacon_stats, 0,
1908                                sizeof(mvmvif->beacon_stats));
1909
1910                         /* add quota for this interface */
1911                         ret = iwl_mvm_update_quotas(mvm, true, NULL);
1912                         if (ret) {
1913                                 IWL_ERR(mvm, "failed to update quotas\n");
1914                                 return;
1915                         }
1916
1917                         if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1918                                      &mvm->status)) {
1919                                 /*
1920                                  * If we're restarting then the firmware will
1921                                  * obviously have lost synchronisation with
1922                                  * the AP. It will attempt to synchronise by
1923                                  * itself, but we can make it more reliable by
1924                                  * scheduling a session protection time event.
1925                                  *
1926                                  * The firmware needs to receive a beacon to
1927                                  * catch up with synchronisation, use 110% of
1928                                  * the beacon interval.
1929                                  *
1930                                  * Set a large maximum delay to allow for more
1931                                  * than a single interface.
1932                                  */
1933                                 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1934                                 iwl_mvm_protect_session(mvm, vif, dur, dur,
1935                                                         5 * dur, false);
1936                         }
1937
1938                         iwl_mvm_sf_update(mvm, vif, false);
1939                         iwl_mvm_power_vif_assoc(mvm, vif);
1940                         if (vif->p2p) {
1941                                 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1942                                 iwl_mvm_update_smps(mvm, vif,
1943                                                     IWL_MVM_SMPS_REQ_PROT,
1944                                                     IEEE80211_SMPS_DYNAMIC);
1945                         }
1946                 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) {
1947                         /*
1948                          * If update fails - SF might be running in associated
1949                          * mode while disassociated - which is forbidden.
1950                          */
1951                         WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1952                                   "Failed to update SF upon disassociation\n");
1953
1954                         /*
1955                          * If we get an assert during the connection (after the
1956                          * station has been added, but before the vif is set
1957                          * to associated), mac80211 will re-add the station and
1958                          * then configure the vif. Since the vif is not
1959                          * associated, we would remove the station here and
1960                          * this would fail the recovery.
1961                          */
1962                         if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1963                                       &mvm->status)) {
1964                                 /*
1965                                  * Remove AP station now that
1966                                  * the MAC is unassoc
1967                                  */
1968                                 ret = iwl_mvm_rm_sta_id(mvm, vif,
1969                                                         mvmvif->ap_sta_id);
1970                                 if (ret)
1971                                         IWL_ERR(mvm,
1972                                                 "failed to remove AP station\n");
1973
1974                                 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1975                                         mvm->d0i3_ap_sta_id =
1976                                                 IWL_MVM_INVALID_STA;
1977                                 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
1978                         }
1979
1980                         /* remove quota for this interface */
1981                         ret = iwl_mvm_update_quotas(mvm, false, NULL);
1982                         if (ret)
1983                                 IWL_ERR(mvm, "failed to update quotas\n");
1984
1985                         if (vif->p2p)
1986                                 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1987
1988                         /* this will take the cleared BSSID from bss_conf */
1989                         ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1990                         if (ret)
1991                                 IWL_ERR(mvm,
1992                                         "failed to update MAC %pM (clear after unassoc)\n",
1993                                         vif->addr);
1994                 }
1995
1996                 /*
1997                  * The firmware tracks the MU-MIMO group on its own.
1998                  * However, on HW restart we should restore this data.
1999                  */
2000                 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2001                     (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
2002                         ret = iwl_mvm_update_mu_groups(mvm, vif);
2003                         if (ret)
2004                                 IWL_ERR(mvm,
2005                                         "failed to update VHT MU_MIMO groups\n");
2006                 }
2007
2008                 iwl_mvm_recalc_multicast(mvm);
2009                 iwl_mvm_configure_bcast_filter(mvm);
2010
2011                 /* reset rssi values */
2012                 mvmvif->bf_data.ave_beacon_signal = 0;
2013
2014                 iwl_mvm_bt_coex_vif_change(mvm);
2015                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2016                                     IEEE80211_SMPS_AUTOMATIC);
2017                 if (fw_has_capa(&mvm->fw->ucode_capa,
2018                                 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2019                         iwl_mvm_config_scan(mvm);
2020         }
2021
2022         if (changes & BSS_CHANGED_BEACON_INFO) {
2023                 /*
2024                  * We received a beacon from the associated AP so
2025                  * remove the session protection.
2026                  */
2027                 iwl_mvm_stop_session_protection(mvm, vif);
2028
2029                 iwl_mvm_sf_update(mvm, vif, false);
2030                 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2031         }
2032
2033         if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2034                        /*
2035                         * Send power command on every beacon change,
2036                         * because we may have not enabled beacon abort yet.
2037                         */
2038                        BSS_CHANGED_BEACON_INFO)) {
2039                 ret = iwl_mvm_power_update_mac(mvm);
2040                 if (ret)
2041                         IWL_ERR(mvm, "failed to update power mode\n");
2042         }
2043
2044         if (changes & BSS_CHANGED_TXPOWER) {
2045                 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2046                                 bss_conf->txpower);
2047                 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2048         }
2049
2050         if (changes & BSS_CHANGED_CQM) {
2051                 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
2052                 /* reset cqm events tracking */
2053                 mvmvif->bf_data.last_cqm_event = 0;
2054                 if (mvmvif->bf_data.bf_enabled) {
2055                         ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2056                         if (ret)
2057                                 IWL_ERR(mvm,
2058                                         "failed to update CQM thresholds\n");
2059                 }
2060         }
2061
2062         if (changes & BSS_CHANGED_ARP_FILTER) {
2063                 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2064                 iwl_mvm_configure_bcast_filter(mvm);
2065         }
2066 }
2067
2068 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2069                                  struct ieee80211_vif *vif)
2070 {
2071         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2072         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2073         int ret;
2074
2075         /*
2076          * iwl_mvm_mac_ctxt_add() might read directly from the device
2077          * (the system time), so make sure it is available.
2078          */
2079         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2080         if (ret)
2081                 return ret;
2082
2083         mutex_lock(&mvm->mutex);
2084
2085         /* Send the beacon template */
2086         ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2087         if (ret)
2088                 goto out_unlock;
2089
2090         /*
2091          * Re-calculate the tsf id, as the master-slave relations depend on the
2092          * beacon interval, which was not known when the AP interface was added.
2093          */
2094         if (vif->type == NL80211_IFTYPE_AP)
2095                 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2096
2097         mvmvif->ap_assoc_sta_count = 0;
2098
2099         /* Add the mac context */
2100         ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2101         if (ret)
2102                 goto out_unlock;
2103
2104         /* Perform the binding */
2105         ret = iwl_mvm_binding_add_vif(mvm, vif);
2106         if (ret)
2107                 goto out_remove;
2108
2109         ret = iwl_mvm_add_mcast_sta(mvm, vif);
2110         if (ret)
2111                 goto out_unbind;
2112
2113         /* Send the bcast station. At this stage the TBTT and DTIM time events
2114          * are added and applied to the scheduler */
2115         ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2116         if (ret)
2117                 goto out_rm_mcast;
2118
2119         /* must be set before quota calculations */
2120         mvmvif->ap_ibss_active = true;
2121
2122         /* power updated needs to be done before quotas */
2123         iwl_mvm_power_update_mac(mvm);
2124
2125         ret = iwl_mvm_update_quotas(mvm, false, NULL);
2126         if (ret)
2127                 goto out_quota_failed;
2128
2129         /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2130         if (vif->p2p && mvm->p2p_device_vif)
2131                 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2132
2133         iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2134
2135         iwl_mvm_bt_coex_vif_change(mvm);
2136
2137         /* we don't support TDLS during DCM */
2138         if (iwl_mvm_phy_ctx_count(mvm) > 1)
2139                 iwl_mvm_teardown_tdls_peers(mvm);
2140
2141         goto out_unlock;
2142
2143 out_quota_failed:
2144         iwl_mvm_power_update_mac(mvm);
2145         mvmvif->ap_ibss_active = false;
2146         iwl_mvm_send_rm_bcast_sta(mvm, vif);
2147 out_rm_mcast:
2148         iwl_mvm_rm_mcast_sta(mvm, vif);
2149 out_unbind:
2150         iwl_mvm_binding_remove_vif(mvm, vif);
2151 out_remove:
2152         iwl_mvm_mac_ctxt_remove(mvm, vif);
2153 out_unlock:
2154         mutex_unlock(&mvm->mutex);
2155         iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
2156         return ret;
2157 }
2158
2159 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2160                                  struct ieee80211_vif *vif)
2161 {
2162         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2163         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2164
2165         iwl_mvm_prepare_mac_removal(mvm, vif);
2166
2167         mutex_lock(&mvm->mutex);
2168
2169         /* Handle AP stop while in CSA */
2170         if (rcu_access_pointer(mvm->csa_vif) == vif) {
2171                 iwl_mvm_remove_time_event(mvm, mvmvif,
2172                                           &mvmvif->time_event_data);
2173                 RCU_INIT_POINTER(mvm->csa_vif, NULL);
2174                 mvmvif->csa_countdown = false;
2175         }
2176
2177         if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2178                 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2179                 mvm->csa_tx_block_bcn_timeout = 0;
2180         }
2181
2182         mvmvif->ap_ibss_active = false;
2183         mvm->ap_last_beacon_gp2 = 0;
2184
2185         iwl_mvm_bt_coex_vif_change(mvm);
2186
2187         iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2188
2189         /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2190         if (vif->p2p && mvm->p2p_device_vif)
2191                 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2192
2193         iwl_mvm_update_quotas(mvm, false, NULL);
2194
2195         /*
2196          * This is not very nice, but the simplest:
2197          * For older FWs removing the mcast sta before the bcast station may
2198          * cause assert 0x2b00.
2199          * This is fixed in later FW (which will stop beaconing when removing
2200          * bcast station).
2201          * So make the order of removal depend on the TLV
2202          */
2203         if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2204                 iwl_mvm_rm_mcast_sta(mvm, vif);
2205         iwl_mvm_send_rm_bcast_sta(mvm, vif);
2206         if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2207                 iwl_mvm_rm_mcast_sta(mvm, vif);
2208         iwl_mvm_binding_remove_vif(mvm, vif);
2209
2210         iwl_mvm_power_update_mac(mvm);
2211
2212         iwl_mvm_mac_ctxt_remove(mvm, vif);
2213
2214         mutex_unlock(&mvm->mutex);
2215 }
2216
2217 static void
2218 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2219                                  struct ieee80211_vif *vif,
2220                                  struct ieee80211_bss_conf *bss_conf,
2221                                  u32 changes)
2222 {
2223         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2224
2225         /* Changes will be applied when the AP/IBSS is started */
2226         if (!mvmvif->ap_ibss_active)
2227                 return;
2228
2229         if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
2230                        BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
2231             iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
2232                 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2233
2234         /* Need to send a new beacon template to the FW */
2235         if (changes & BSS_CHANGED_BEACON &&
2236             iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2237                 IWL_WARN(mvm, "Failed updating beacon data\n");
2238
2239         if (changes & BSS_CHANGED_TXPOWER) {
2240                 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2241                                 bss_conf->txpower);
2242                 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2243         }
2244 }
2245
2246 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2247                                      struct ieee80211_vif *vif,
2248                                      struct ieee80211_bss_conf *bss_conf,
2249                                      u32 changes)
2250 {
2251         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2252
2253         /*
2254          * iwl_mvm_bss_info_changed_station() might call
2255          * iwl_mvm_protect_session(), which reads directly from
2256          * the device (the system time), so make sure it is available.
2257          */
2258         if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2259                 return;
2260
2261         mutex_lock(&mvm->mutex);
2262
2263         if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
2264                 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
2265
2266         switch (vif->type) {
2267         case NL80211_IFTYPE_STATION:
2268                 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2269                 break;
2270         case NL80211_IFTYPE_AP:
2271         case NL80211_IFTYPE_ADHOC:
2272                 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
2273                 break;
2274         case NL80211_IFTYPE_MONITOR:
2275                 if (changes & BSS_CHANGED_MU_GROUPS)
2276                         iwl_mvm_update_mu_groups(mvm, vif);
2277                 break;
2278         default:
2279                 /* shouldn't happen */
2280                 WARN_ON_ONCE(1);
2281         }
2282
2283         mutex_unlock(&mvm->mutex);
2284         iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
2285 }
2286
2287 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2288                                struct ieee80211_vif *vif,
2289                                struct ieee80211_scan_request *hw_req)
2290 {
2291         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2292         int ret;
2293
2294         if (hw_req->req.n_channels == 0 ||
2295             hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
2296                 return -EINVAL;
2297
2298         mutex_lock(&mvm->mutex);
2299         ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
2300         mutex_unlock(&mvm->mutex);
2301
2302         return ret;
2303 }
2304
2305 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2306                                        struct ieee80211_vif *vif)
2307 {
2308         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2309
2310         mutex_lock(&mvm->mutex);
2311
2312         /* Due to a race condition, it's possible that mac80211 asks
2313          * us to stop a hw_scan when it's already stopped.  This can
2314          * happen, for instance, if we stopped the scan ourselves,
2315          * called ieee80211_scan_completed() and the userspace called
2316          * cancel scan scan before ieee80211_scan_work() could run.
2317          * To handle that, simply return if the scan is not running.
2318         */
2319         if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
2320                 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
2321
2322         mutex_unlock(&mvm->mutex);
2323 }
2324
2325 static void
2326 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
2327                                   struct ieee80211_sta *sta, u16 tids,
2328                                   int num_frames,
2329                                   enum ieee80211_frame_release_type reason,
2330                                   bool more_data)
2331 {
2332         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2333
2334         /* Called when we need to transmit (a) frame(s) from mac80211 */
2335
2336         iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2337                                           tids, more_data, false);
2338 }
2339
2340 static void
2341 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2342                                     struct ieee80211_sta *sta, u16 tids,
2343                                     int num_frames,
2344                                     enum ieee80211_frame_release_type reason,
2345                                     bool more_data)
2346 {
2347         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2348
2349         /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
2350
2351         iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2352                                           tids, more_data, true);
2353 }
2354
2355 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2356                                      enum sta_notify_cmd cmd,
2357                                      struct ieee80211_sta *sta)
2358 {
2359         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2360         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2361         unsigned long txqs = 0, tids = 0;
2362         int tid;
2363
2364         /*
2365          * If we have TVQM then we get too high queue numbers - luckily
2366          * we really shouldn't get here with that because such hardware
2367          * should have firmware supporting buffer station offload.
2368          */
2369         if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
2370                 return;
2371
2372         spin_lock_bh(&mvmsta->lock);
2373         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2374                 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2375
2376                 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
2377                         continue;
2378
2379                 __set_bit(tid_data->txq_id, &txqs);
2380
2381                 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
2382                         continue;
2383
2384                 __set_bit(tid, &tids);
2385         }
2386
2387         switch (cmd) {
2388         case STA_NOTIFY_SLEEP:
2389                 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
2390                         ieee80211_sta_set_buffered(sta, tid, true);
2391
2392                 if (txqs)
2393                         iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
2394                 /*
2395                  * The fw updates the STA to be asleep. Tx packets on the Tx
2396                  * queues to this station will not be transmitted. The fw will
2397                  * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2398                  */
2399                 break;
2400         case STA_NOTIFY_AWAKE:
2401                 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA))
2402                         break;
2403
2404                 if (txqs)
2405                         iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
2406                 iwl_mvm_sta_modify_ps_wake(mvm, sta);
2407                 break;
2408         default:
2409                 break;
2410         }
2411         spin_unlock_bh(&mvmsta->lock);
2412 }
2413
2414 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2415                                    struct ieee80211_vif *vif,
2416                                    enum sta_notify_cmd cmd,
2417                                    struct ieee80211_sta *sta)
2418 {
2419         __iwl_mvm_mac_sta_notify(hw, cmd, sta);
2420 }
2421
2422 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
2423 {
2424         struct iwl_rx_packet *pkt = rxb_addr(rxb);
2425         struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
2426         struct ieee80211_sta *sta;
2427         struct iwl_mvm_sta *mvmsta;
2428         bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
2429
2430         if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)))
2431                 return;
2432
2433         rcu_read_lock();
2434         sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
2435         if (WARN_ON(IS_ERR_OR_NULL(sta))) {
2436                 rcu_read_unlock();
2437                 return;
2438         }
2439
2440         mvmsta = iwl_mvm_sta_from_mac80211(sta);
2441
2442         if (!mvmsta->vif ||
2443             mvmsta->vif->type != NL80211_IFTYPE_AP) {
2444                 rcu_read_unlock();
2445                 return;
2446         }
2447
2448         if (mvmsta->sleeping != sleeping) {
2449                 mvmsta->sleeping = sleeping;
2450                 __iwl_mvm_mac_sta_notify(mvm->hw,
2451                         sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
2452                         sta);
2453                 ieee80211_sta_ps_transition(sta, sleeping);
2454         }
2455
2456         if (sleeping) {
2457                 switch (notif->type) {
2458                 case IWL_MVM_PM_EVENT_AWAKE:
2459                 case IWL_MVM_PM_EVENT_ASLEEP:
2460                         break;
2461                 case IWL_MVM_PM_EVENT_UAPSD:
2462                         ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
2463                         break;
2464                 case IWL_MVM_PM_EVENT_PS_POLL:
2465                         ieee80211_sta_pspoll(sta);
2466                         break;
2467                 default:
2468                         break;
2469                 }
2470         }
2471
2472         rcu_read_unlock();
2473 }
2474
2475 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2476                                        struct ieee80211_vif *vif,
2477                                        struct ieee80211_sta *sta)
2478 {
2479         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2480         struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2481
2482         /*
2483          * This is called before mac80211 does RCU synchronisation,
2484          * so here we already invalidate our internal RCU-protected
2485          * station pointer. The rest of the code will thus no longer
2486          * be able to find the station this way, and we don't rely
2487          * on further RCU synchronisation after the sta_state()
2488          * callback deleted the station.
2489          */
2490         mutex_lock(&mvm->mutex);
2491         if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2492                 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2493                                    ERR_PTR(-ENOENT));
2494
2495         mutex_unlock(&mvm->mutex);
2496 }
2497
2498 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2499                                 const u8 *bssid)
2500 {
2501         if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2502                 return;
2503
2504         if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
2505                 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2506                 return;
2507         }
2508
2509         if (!vif->p2p &&
2510             (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
2511                 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2512                 return;
2513         }
2514
2515         vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2516 }
2517
2518 static void
2519 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2520                            struct ieee80211_vif *vif, u8 *peer_addr,
2521                            enum nl80211_tdls_operation action)
2522 {
2523         struct iwl_fw_dbg_trigger_tlv *trig;
2524         struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2525
2526         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2527                 return;
2528
2529         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2530         tdls_trig = (void *)trig->data;
2531         if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
2532                                            ieee80211_vif_to_wdev(vif), trig))
2533                 return;
2534
2535         if (!(tdls_trig->action_bitmap & BIT(action)))
2536                 return;
2537
2538         if (tdls_trig->peer_mode &&
2539             memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2540                 return;
2541
2542         iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2543                                 "TDLS event occurred, peer %pM, action %d",
2544                                 peer_addr, action);
2545 }
2546
2547 static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
2548                                              struct iwl_mvm_sta *mvm_sta)
2549 {
2550         struct iwl_mvm_tid_data *tid_data;
2551         struct sk_buff *skb;
2552         int i;
2553
2554         spin_lock_bh(&mvm_sta->lock);
2555         for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
2556                 tid_data = &mvm_sta->tid_data[i];
2557
2558                 while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) {
2559                         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2560
2561                         /*
2562                          * The first deferred frame should've stopped the MAC
2563                          * queues, so we should never get a second deferred
2564                          * frame for the RA/TID.
2565                          */
2566                         iwl_mvm_start_mac_queues(mvm, info->hw_queue);
2567                         ieee80211_free_txskb(mvm->hw, skb);
2568                 }
2569         }
2570         spin_unlock_bh(&mvm_sta->lock);
2571 }
2572
2573 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2574                                  struct ieee80211_vif *vif,
2575                                  struct ieee80211_sta *sta,
2576                                  enum ieee80211_sta_state old_state,
2577                                  enum ieee80211_sta_state new_state)
2578 {
2579         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2580         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2581         struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2582         int ret;
2583
2584         IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2585                            sta->addr, old_state, new_state);
2586
2587         /* this would be a mac80211 bug ... but don't crash */
2588         if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2589                 return -EINVAL;
2590
2591         /*
2592          * If we are in a STA removal flow and in DQA mode:
2593          *
2594          * This is after the sync_rcu part, so the queues have already been
2595          * flushed. No more TXs on their way in mac80211's path, and no more in
2596          * the queues.
2597          * Also, we won't be getting any new TX frames for this station.
2598          * What we might have are deferred TX frames that need to be taken care
2599          * of.
2600          *
2601          * Drop any still-queued deferred-frame before removing the STA, and
2602          * make sure the worker is no longer handling frames for this STA.
2603          */
2604         if (old_state == IEEE80211_STA_NONE &&
2605             new_state == IEEE80211_STA_NOTEXIST) {
2606                 iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta);
2607                 flush_work(&mvm->add_stream_wk);
2608
2609                 /*
2610                  * No need to make sure deferred TX indication is off since the
2611                  * worker will already remove it if it was on
2612                  */
2613         }
2614
2615         mutex_lock(&mvm->mutex);
2616         /* track whether or not the station is associated */
2617         mvm_sta->associated = new_state >= IEEE80211_STA_ASSOC;
2618
2619         if (old_state == IEEE80211_STA_NOTEXIST &&
2620             new_state == IEEE80211_STA_NONE) {
2621                 /*
2622                  * Firmware bug - it'll crash if the beacon interval is less
2623                  * than 16. We can't avoid connecting at all, so refuse the
2624                  * station state change, this will cause mac80211 to abandon
2625                  * attempts to connect to this AP, and eventually wpa_s will
2626                  * blacklist the AP...
2627                  */
2628                 if (vif->type == NL80211_IFTYPE_STATION &&
2629                     vif->bss_conf.beacon_int < 16) {
2630                         IWL_ERR(mvm,
2631                                 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2632                                 sta->addr, vif->bss_conf.beacon_int);
2633                         ret = -EINVAL;
2634                         goto out_unlock;
2635                 }
2636
2637                 if (sta->tdls &&
2638                     (vif->p2p ||
2639                      iwl_mvm_tdls_sta_count(mvm, NULL) ==
2640                                                 IWL_MVM_TDLS_STA_COUNT ||
2641                      iwl_mvm_phy_ctx_count(mvm) > 1)) {
2642                         IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2643                         ret = -EBUSY;
2644                         goto out_unlock;
2645                 }
2646
2647                 ret = iwl_mvm_add_sta(mvm, vif, sta);
2648                 if (sta->tdls && ret == 0) {
2649                         iwl_mvm_recalc_tdls_state(mvm, vif, true);
2650                         iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2651                                                    NL80211_TDLS_SETUP);
2652                 }
2653         } else if (old_state == IEEE80211_STA_NONE &&
2654                    new_state == IEEE80211_STA_AUTH) {
2655                 /*
2656                  * EBS may be disabled due to previous failures reported by FW.
2657                  * Reset EBS status here assuming environment has been changed.
2658                  */
2659                 mvm->last_ebs_successful = true;
2660                 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
2661                 ret = 0;
2662         } else if (old_state == IEEE80211_STA_AUTH &&
2663                    new_state == IEEE80211_STA_ASSOC) {
2664                 if (vif->type == NL80211_IFTYPE_AP) {
2665                         mvmvif->ap_assoc_sta_count++;
2666                         iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2667                 }
2668
2669                 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
2670                                      true);
2671                 ret = iwl_mvm_update_sta(mvm, vif, sta);
2672         } else if (old_state == IEEE80211_STA_ASSOC &&
2673                    new_state == IEEE80211_STA_AUTHORIZED) {
2674
2675                 /* we don't support TDLS during DCM */
2676                 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2677                         iwl_mvm_teardown_tdls_peers(mvm);
2678
2679                 if (sta->tdls)
2680                         iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2681                                                    NL80211_TDLS_ENABLE_LINK);
2682
2683                 /* enable beacon filtering */
2684                 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2685                 ret = 0;
2686         } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2687                    new_state == IEEE80211_STA_ASSOC) {
2688                 /* disable beacon filtering */
2689                 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
2690                 ret = 0;
2691         } else if (old_state == IEEE80211_STA_ASSOC &&
2692                    new_state == IEEE80211_STA_AUTH) {
2693                 if (vif->type == NL80211_IFTYPE_AP) {
2694                         mvmvif->ap_assoc_sta_count--;
2695                         iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2696                 }
2697                 ret = 0;
2698         } else if (old_state == IEEE80211_STA_AUTH &&
2699                    new_state == IEEE80211_STA_NONE) {
2700                 ret = 0;
2701         } else if (old_state == IEEE80211_STA_NONE &&
2702                    new_state == IEEE80211_STA_NOTEXIST) {
2703                 ret = iwl_mvm_rm_sta(mvm, vif, sta);
2704                 if (sta->tdls) {
2705                         iwl_mvm_recalc_tdls_state(mvm, vif, false);
2706                         iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2707                                                    NL80211_TDLS_DISABLE_LINK);
2708                 }
2709         } else {
2710                 ret = -EIO;
2711         }
2712  out_unlock:
2713         mutex_unlock(&mvm->mutex);
2714
2715         if (sta->tdls && ret == 0) {
2716                 if (old_state == IEEE80211_STA_NOTEXIST &&
2717                     new_state == IEEE80211_STA_NONE)
2718                         ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2719                 else if (old_state == IEEE80211_STA_NONE &&
2720                          new_state == IEEE80211_STA_NOTEXIST)
2721                         ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2722         }
2723
2724         return ret;
2725 }
2726
2727 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2728 {
2729         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2730
2731         mvm->rts_threshold = value;
2732
2733         return 0;
2734 }
2735
2736 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2737                                   struct ieee80211_vif *vif,
2738                                   struct ieee80211_sta *sta, u32 changed)
2739 {
2740         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2741
2742         if (vif->type == NL80211_IFTYPE_STATION &&
2743             changed & IEEE80211_RC_NSS_CHANGED)
2744                 iwl_mvm_sf_update(mvm, vif, false);
2745 }
2746
2747 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2748                                struct ieee80211_vif *vif, u16 ac,
2749                                const struct ieee80211_tx_queue_params *params)
2750 {
2751         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2752         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2753
2754         mvmvif->queue_params[ac] = *params;
2755
2756         /*
2757          * No need to update right away, we'll get BSS_CHANGED_QOS
2758          * The exception is P2P_DEVICE interface which needs immediate update.
2759          */
2760         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2761                 int ret;
2762
2763                 mutex_lock(&mvm->mutex);
2764                 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2765                 mutex_unlock(&mvm->mutex);
2766                 return ret;
2767         }
2768         return 0;
2769 }
2770
2771 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2772                                       struct ieee80211_vif *vif)
2773 {
2774         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2775         u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2776         u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
2777
2778         if (WARN_ON_ONCE(vif->bss_conf.assoc))
2779                 return;
2780
2781         /*
2782          * iwl_mvm_protect_session() reads directly from the device
2783          * (the system time), so make sure it is available.
2784          */
2785         if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2786                 return;
2787
2788         mutex_lock(&mvm->mutex);
2789         /* Try really hard to protect the session and hear a beacon */
2790         iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
2791         mutex_unlock(&mvm->mutex);
2792
2793         iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
2794 }
2795
2796 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2797                                         struct ieee80211_vif *vif,
2798                                         struct cfg80211_sched_scan_request *req,
2799                                         struct ieee80211_scan_ies *ies)
2800 {
2801         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2802
2803         int ret;
2804
2805         mutex_lock(&mvm->mutex);
2806
2807         if (!vif->bss_conf.idle) {
2808                 ret = -EBUSY;
2809                 goto out;
2810         }
2811
2812         ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
2813
2814 out:
2815         mutex_unlock(&mvm->mutex);
2816         return ret;
2817 }
2818
2819 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2820                                        struct ieee80211_vif *vif)
2821 {
2822         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2823         int ret;
2824
2825         mutex_lock(&mvm->mutex);
2826
2827         /* Due to a race condition, it's possible that mac80211 asks
2828          * us to stop a sched_scan when it's already stopped.  This
2829          * can happen, for instance, if we stopped the scan ourselves,
2830          * called ieee80211_sched_scan_stopped() and the userspace called
2831          * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2832          * could run.  To handle this, simply return if the scan is
2833          * not running.
2834         */
2835         if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
2836                 mutex_unlock(&mvm->mutex);
2837                 return 0;
2838         }
2839
2840         ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
2841         mutex_unlock(&mvm->mutex);
2842         iwl_mvm_wait_for_async_handlers(mvm);
2843
2844         return ret;
2845 }
2846
2847 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2848                                enum set_key_cmd cmd,
2849                                struct ieee80211_vif *vif,
2850                                struct ieee80211_sta *sta,
2851                                struct ieee80211_key_conf *key)
2852 {
2853         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2854         struct iwl_mvm_sta *mvmsta;
2855         struct iwl_mvm_key_pn *ptk_pn;
2856         int keyidx = key->keyidx;
2857         int ret;
2858         u8 key_offset;
2859
2860         if (iwlwifi_mod_params.swcrypto) {
2861                 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2862                 return -EOPNOTSUPP;
2863         }
2864
2865         switch (key->cipher) {
2866         case WLAN_CIPHER_SUITE_TKIP:
2867                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2868                 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2869                 break;
2870         case WLAN_CIPHER_SUITE_CCMP:
2871         case WLAN_CIPHER_SUITE_GCMP:
2872         case WLAN_CIPHER_SUITE_GCMP_256:
2873                 if (!iwl_mvm_has_new_tx_api(mvm))
2874                         key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2875                 break;
2876         case WLAN_CIPHER_SUITE_AES_CMAC:
2877         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2878         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2879                 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
2880                 break;
2881         case WLAN_CIPHER_SUITE_WEP40:
2882         case WLAN_CIPHER_SUITE_WEP104:
2883                 /* For non-client mode, only use WEP keys for TX as we probably
2884                  * don't have a station yet anyway and would then have to keep
2885                  * track of the keys, linking them to each of the clients/peers
2886                  * as they appear. For now, don't do that, for performance WEP
2887                  * offload doesn't really matter much, but we need it for some
2888                  * other offload features in client mode.
2889                  */
2890                 if (vif->type != NL80211_IFTYPE_STATION)
2891                         return 0;
2892                 break;
2893         default:
2894                 /* currently FW supports only one optional cipher scheme */
2895                 if (hw->n_cipher_schemes &&
2896                     hw->cipher_schemes->cipher == key->cipher)
2897                         key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2898                 else
2899                         return -EOPNOTSUPP;
2900         }
2901
2902         mutex_lock(&mvm->mutex);
2903
2904         switch (cmd) {
2905         case SET_KEY:
2906                 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2907                      vif->type == NL80211_IFTYPE_AP) && !sta) {
2908                         /*
2909                          * GTK on AP interface is a TX-only key, return 0;
2910                          * on IBSS they're per-station and because we're lazy
2911                          * we don't support them for RX, so do the same.
2912                          * CMAC/GMAC in AP/IBSS modes must be done in software.
2913                          */
2914                         if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
2915                             key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
2916                             key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
2917                                 ret = -EOPNOTSUPP;
2918                         else
2919                                 ret = 0;
2920
2921                         if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
2922                             key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
2923                             !iwl_mvm_has_new_tx_api(mvm)) {
2924                                 key->hw_key_idx = STA_KEY_IDX_INVALID;
2925                                 break;
2926                         }
2927                 }
2928
2929                 /* During FW restart, in order to restore the state as it was,
2930                  * don't try to reprogram keys we previously failed for.
2931                  */
2932                 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2933                     key->hw_key_idx == STA_KEY_IDX_INVALID) {
2934                         IWL_DEBUG_MAC80211(mvm,
2935                                            "skip invalid idx key programming during restart\n");
2936                         ret = 0;
2937                         break;
2938                 }
2939
2940                 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2941                     sta && iwl_mvm_has_new_rx_api(mvm) &&
2942                     key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2943                     (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2944                      key->cipher == WLAN_CIPHER_SUITE_GCMP ||
2945                      key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
2946                         struct ieee80211_key_seq seq;
2947                         int tid, q;
2948
2949                         mvmsta = iwl_mvm_sta_from_mac80211(sta);
2950                         WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
2951                         ptk_pn = kzalloc(sizeof(*ptk_pn) +
2952                                          mvm->trans->num_rx_queues *
2953                                                 sizeof(ptk_pn->q[0]),
2954                                          GFP_KERNEL);
2955                         if (!ptk_pn) {
2956                                 ret = -ENOMEM;
2957                                 break;
2958                         }
2959
2960                         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2961                                 ieee80211_get_key_rx_seq(key, tid, &seq);
2962                                 for (q = 0; q < mvm->trans->num_rx_queues; q++)
2963                                         memcpy(ptk_pn->q[q].pn[tid],
2964                                                seq.ccmp.pn,
2965                                                IEEE80211_CCMP_PN_LEN);
2966                         }
2967
2968                         rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
2969                 }
2970
2971                 /* in HW restart reuse the index, otherwise request a new one */
2972                 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
2973                         key_offset = key->hw_key_idx;
2974                 else
2975                         key_offset = STA_KEY_IDX_INVALID;
2976
2977                 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2978                 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
2979                 if (ret) {
2980                         IWL_WARN(mvm, "set key failed\n");
2981                         /*
2982                          * can't add key for RX, but we don't need it
2983                          * in the device for TX so still return 0
2984                          */
2985                         key->hw_key_idx = STA_KEY_IDX_INVALID;
2986                         ret = 0;
2987                 }
2988
2989                 break;
2990         case DISABLE_KEY:
2991                 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2992                         ret = 0;
2993                         break;
2994                 }
2995
2996                 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
2997                     key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2998                     (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2999                      key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3000                      key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
3001                         mvmsta = iwl_mvm_sta_from_mac80211(sta);
3002                         ptk_pn = rcu_dereference_protected(
3003                                                 mvmsta->ptk_pn[keyidx],
3004                                                 lockdep_is_held(&mvm->mutex));
3005                         RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
3006                         if (ptk_pn)
3007                                 kfree_rcu(ptk_pn, rcu_head);
3008                 }
3009
3010                 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
3011                 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
3012                 break;
3013         default:
3014                 ret = -EINVAL;
3015         }
3016
3017         mutex_unlock(&mvm->mutex);
3018         return ret;
3019 }
3020
3021 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
3022                                         struct ieee80211_vif *vif,
3023                                         struct ieee80211_key_conf *keyconf,
3024                                         struct ieee80211_sta *sta,
3025                                         u32 iv32, u16 *phase1key)
3026 {
3027         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3028
3029         if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
3030                 return;
3031
3032         iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
3033 }
3034
3035
3036 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
3037                                struct iwl_rx_packet *pkt, void *data)
3038 {
3039         struct iwl_mvm *mvm =
3040                 container_of(notif_wait, struct iwl_mvm, notif_wait);
3041         struct iwl_hs20_roc_res *resp;
3042         int resp_len = iwl_rx_packet_payload_len(pkt);
3043         struct iwl_mvm_time_event_data *te_data = data;
3044
3045         if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3046                 return true;
3047
3048         if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3049                 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3050                 return true;
3051         }
3052
3053         resp = (void *)pkt->data;
3054
3055         IWL_DEBUG_TE(mvm,
3056                      "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3057                      resp->status, resp->event_unique_id);
3058
3059         te_data->uid = le32_to_cpu(resp->event_unique_id);
3060         IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3061                      te_data->uid);
3062
3063         spin_lock_bh(&mvm->time_event_lock);
3064         list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3065         spin_unlock_bh(&mvm->time_event_lock);
3066
3067         return true;
3068 }
3069
3070 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
3071 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
3072 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
3073 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
3074 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
3075 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3076                                     struct ieee80211_channel *channel,
3077                                     struct ieee80211_vif *vif,
3078                                     int duration)
3079 {
3080         int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3081         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3082         struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
3083         static const u16 time_event_response[] = { HOT_SPOT_CMD };
3084         struct iwl_notification_wait wait_time_event;
3085         u32 dtim_interval = vif->bss_conf.dtim_period *
3086                 vif->bss_conf.beacon_int;
3087         u32 req_dur, delay;
3088         struct iwl_hs20_roc_req aux_roc_req = {
3089                 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3090                 .id_and_color =
3091                         cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3092                 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3093                 /* Set the channel info data */
3094                 .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ?
3095                         PHY_BAND_24 : PHY_BAND_5,
3096                 .channel_info.channel = channel->hw_value,
3097                 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3098                 /* Set the time and duration */
3099                 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
3100          };
3101
3102         delay = AUX_ROC_MIN_DELAY;
3103         req_dur = MSEC_TO_TU(duration);
3104
3105         /*
3106          * If we are associated we want the delay time to be at least one
3107          * dtim interval so that the FW can wait until after the DTIM and
3108          * then start the time event, this will potentially allow us to
3109          * remain off-channel for the max duration.
3110          * Since we want to use almost a whole dtim interval we would also
3111          * like the delay to be for 2-3 dtim intervals, in case there are
3112          * other time events with higher priority.
3113          */
3114         if (vif->bss_conf.assoc) {
3115                 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
3116                 /* We cannot remain off-channel longer than the DTIM interval */
3117                 if (dtim_interval <= req_dur) {
3118                         req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
3119                         if (req_dur <= AUX_ROC_MIN_DURATION)
3120                                 req_dur = dtim_interval -
3121                                         AUX_ROC_MIN_SAFETY_BUFFER;
3122                 }
3123         }
3124
3125         aux_roc_req.duration = cpu_to_le32(req_dur);
3126         aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
3127
3128         IWL_DEBUG_TE(mvm,
3129                      "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3130                      channel->hw_value, req_dur, duration, delay,
3131                      dtim_interval);
3132         /* Set the node address */
3133         memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3134
3135         lockdep_assert_held(&mvm->mutex);
3136
3137         spin_lock_bh(&mvm->time_event_lock);
3138
3139         if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3140                 spin_unlock_bh(&mvm->time_event_lock);
3141                 return -EIO;
3142         }
3143
3144         te_data->vif = vif;
3145         te_data->duration = duration;
3146         te_data->id = HOT_SPOT_CMD;
3147
3148         spin_unlock_bh(&mvm->time_event_lock);
3149
3150         /*
3151          * Use a notification wait, which really just processes the
3152          * command response and doesn't wait for anything, in order
3153          * to be able to process the response and get the UID inside
3154          * the RX path. Using CMD_WANT_SKB doesn't work because it
3155          * stores the buffer and then wakes up this thread, by which
3156          * time another notification (that the time event started)
3157          * might already be processed unsuccessfully.
3158          */
3159         iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3160                                    time_event_response,
3161                                    ARRAY_SIZE(time_event_response),
3162                                    iwl_mvm_rx_aux_roc, te_data);
3163
3164         res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3165                                    &aux_roc_req);
3166
3167         if (res) {
3168                 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3169                 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3170                 goto out_clear_te;
3171         }
3172
3173         /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3174         res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3175         /* should never fail */
3176         WARN_ON_ONCE(res);
3177
3178         if (res) {
3179  out_clear_te:
3180                 spin_lock_bh(&mvm->time_event_lock);
3181                 iwl_mvm_te_clear_data(mvm, te_data);
3182                 spin_unlock_bh(&mvm->time_event_lock);
3183         }
3184
3185         return res;
3186 }
3187
3188 static int iwl_mvm_roc(struct ieee80211_hw *hw,
3189                        struct ieee80211_vif *vif,
3190                        struct ieee80211_channel *channel,
3191                        int duration,
3192                        enum ieee80211_roc_type type)
3193 {
3194         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3195         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3196         struct cfg80211_chan_def chandef;
3197         struct iwl_mvm_phy_ctxt *phy_ctxt;
3198         int ret, i;
3199
3200         IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3201                            duration, type);
3202
3203         flush_work(&mvm->roc_done_wk);
3204
3205         mutex_lock(&mvm->mutex);
3206
3207         switch (vif->type) {
3208         case NL80211_IFTYPE_STATION:
3209                 if (fw_has_capa(&mvm->fw->ucode_capa,
3210                                 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
3211                         /* Use aux roc framework (HS20) */
3212                         ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3213                                                        vif, duration);
3214                         goto out_unlock;
3215                 }
3216                 IWL_ERR(mvm, "hotspot not supported\n");
3217                 ret = -EINVAL;
3218                 goto out_unlock;
3219         case NL80211_IFTYPE_P2P_DEVICE:
3220                 /* handle below */
3221                 break;
3222         default:
3223                 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
3224                 ret = -EINVAL;
3225                 goto out_unlock;
3226         }
3227
3228         for (i = 0; i < NUM_PHY_CTX; i++) {
3229                 phy_ctxt = &mvm->phy_ctxts[i];
3230                 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3231                         continue;
3232
3233                 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3234                         /*
3235                          * Unbind the P2P_DEVICE from the current PHY context,
3236                          * and if the PHY context is not used remove it.
3237                          */
3238                         ret = iwl_mvm_binding_remove_vif(mvm, vif);
3239                         if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3240                                 goto out_unlock;
3241
3242                         iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3243
3244                         /* Bind the P2P_DEVICE to the current PHY Context */
3245                         mvmvif->phy_ctxt = phy_ctxt;
3246
3247                         ret = iwl_mvm_binding_add_vif(mvm, vif);
3248                         if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3249                                 goto out_unlock;
3250
3251                         iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3252                         goto schedule_time_event;
3253                 }
3254         }
3255
3256         /* Need to update the PHY context only if the ROC channel changed */
3257         if (channel == mvmvif->phy_ctxt->channel)
3258                 goto schedule_time_event;
3259
3260         cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
3261
3262         /*
3263          * Change the PHY context configuration as it is currently referenced
3264          * only by the P2P Device MAC
3265          */
3266         if (mvmvif->phy_ctxt->ref == 1) {
3267                 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3268                                                &chandef, 1, 1);
3269                 if (ret)
3270                         goto out_unlock;
3271         } else {
3272                 /*
3273                  * The PHY context is shared with other MACs. Need to remove the
3274                  * P2P Device from the binding, allocate an new PHY context and
3275                  * create a new binding
3276                  */
3277                 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3278                 if (!phy_ctxt) {
3279                         ret = -ENOSPC;
3280                         goto out_unlock;
3281                 }
3282
3283                 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3284                                                1, 1);
3285                 if (ret) {
3286                         IWL_ERR(mvm, "Failed to change PHY context\n");
3287                         goto out_unlock;
3288                 }
3289
3290                 /* Unbind the P2P_DEVICE from the current PHY context */
3291                 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3292                 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3293                         goto out_unlock;
3294
3295                 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3296
3297                 /* Bind the P2P_DEVICE to the new allocated PHY context */
3298                 mvmvif->phy_ctxt = phy_ctxt;
3299
3300                 ret = iwl_mvm_binding_add_vif(mvm, vif);
3301                 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3302                         goto out_unlock;
3303
3304                 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3305         }
3306
3307 schedule_time_event:
3308         /* Schedule the time events */
3309         ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
3310
3311 out_unlock:
3312         mutex_unlock(&mvm->mutex);
3313         IWL_DEBUG_MAC80211(mvm, "leave\n");
3314         return ret;
3315 }
3316
3317 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3318 {
3319         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3320
3321         IWL_DEBUG_MAC80211(mvm, "enter\n");
3322
3323         mutex_lock(&mvm->mutex);
3324         iwl_mvm_stop_roc(mvm);
3325         mutex_unlock(&mvm->mutex);
3326
3327         IWL_DEBUG_MAC80211(mvm, "leave\n");
3328         return 0;
3329 }
3330
3331 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3332                                  struct ieee80211_chanctx_conf *ctx)
3333 {
3334         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3335         struct iwl_mvm_phy_ctxt *phy_ctxt;
3336         int ret;
3337
3338         lockdep_assert_held(&mvm->mutex);
3339
3340         IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
3341
3342         phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3343         if (!phy_ctxt) {
3344                 ret = -ENOSPC;
3345                 goto out;
3346         }
3347
3348         ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
3349                                        ctx->rx_chains_static,
3350                                        ctx->rx_chains_dynamic);
3351         if (ret) {
3352                 IWL_ERR(mvm, "Failed to add PHY context\n");
3353                 goto out;
3354         }
3355
3356         iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
3357         *phy_ctxt_id = phy_ctxt->id;
3358 out:
3359         return ret;
3360 }
3361
3362 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3363                                struct ieee80211_chanctx_conf *ctx)
3364 {
3365         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3366         int ret;
3367
3368         mutex_lock(&mvm->mutex);
3369         ret = __iwl_mvm_add_chanctx(mvm, ctx);
3370         mutex_unlock(&mvm->mutex);
3371
3372         return ret;
3373 }
3374
3375 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3376                                      struct ieee80211_chanctx_conf *ctx)
3377 {
3378         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3379         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3380
3381         lockdep_assert_held(&mvm->mutex);
3382
3383         iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3384 }
3385
3386 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3387                                    struct ieee80211_chanctx_conf *ctx)
3388 {
3389         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3390
3391         mutex_lock(&mvm->mutex);
3392         __iwl_mvm_remove_chanctx(mvm, ctx);
3393         mutex_unlock(&mvm->mutex);
3394 }
3395
3396 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3397                                    struct ieee80211_chanctx_conf *ctx,
3398                                    u32 changed)
3399 {
3400         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3401         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3402         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3403
3404         if (WARN_ONCE((phy_ctxt->ref > 1) &&
3405                       (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3406                                    IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
3407                                    IEEE80211_CHANCTX_CHANGE_RADAR |
3408                                    IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
3409                       "Cannot change PHY. Ref=%d, changed=0x%X\n",
3410                       phy_ctxt->ref, changed))
3411                 return;
3412
3413         mutex_lock(&mvm->mutex);
3414         iwl_mvm_bt_coex_vif_change(mvm);
3415         iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
3416                                  ctx->rx_chains_static,
3417                                  ctx->rx_chains_dynamic);
3418         mutex_unlock(&mvm->mutex);
3419 }
3420
3421 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3422                                         struct ieee80211_vif *vif,
3423                                         struct ieee80211_chanctx_conf *ctx,
3424                                         bool switching_chanctx)
3425 {
3426         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3427         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3428         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3429         int ret;
3430
3431         lockdep_assert_held(&mvm->mutex);
3432
3433         mvmvif->phy_ctxt = phy_ctxt;
3434
3435         switch (vif->type) {
3436         case NL80211_IFTYPE_AP:
3437                 /* only needed if we're switching chanctx (i.e. during CSA) */
3438                 if (switching_chanctx) {
3439                         mvmvif->ap_ibss_active = true;
3440                         break;
3441                 }
3442         case NL80211_IFTYPE_ADHOC:
3443                 /*
3444                  * The AP binding flow is handled as part of the start_ap flow
3445                  * (in bss_info_changed), similarly for IBSS.
3446                  */
3447                 ret = 0;
3448                 goto out;
3449         case NL80211_IFTYPE_STATION:
3450                 break;
3451         case NL80211_IFTYPE_MONITOR:
3452                 /* always disable PS when a monitor interface is active */
3453                 mvmvif->ps_disabled = true;
3454                 break;
3455         default:
3456                 ret = -EINVAL;
3457                 goto out;
3458         }
3459
3460         ret = iwl_mvm_binding_add_vif(mvm, vif);
3461         if (ret)
3462                 goto out;
3463
3464         /*
3465          * Power state must be updated before quotas,
3466          * otherwise fw will complain.
3467          */
3468         iwl_mvm_power_update_mac(mvm);
3469
3470         /* Setting the quota at this stage is only required for monitor
3471          * interfaces. For the other types, the bss_info changed flow
3472          * will handle quota settings.
3473          */
3474         if (vif->type == NL80211_IFTYPE_MONITOR) {
3475                 mvmvif->monitor_active = true;
3476                 ret = iwl_mvm_update_quotas(mvm, false, NULL);
3477                 if (ret)
3478                         goto out_remove_binding;
3479
3480                 ret = iwl_mvm_add_snif_sta(mvm, vif);
3481                 if (ret)
3482                         goto out_remove_binding;
3483
3484         }
3485
3486         /* Handle binding during CSA */
3487         if (vif->type == NL80211_IFTYPE_AP) {
3488                 iwl_mvm_update_quotas(mvm, false, NULL);
3489                 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3490         }
3491
3492         if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
3493                 u32 duration = 2 * vif->bss_conf.beacon_int;
3494
3495                 /* iwl_mvm_protect_session() reads directly from the
3496                  * device (the system time), so make sure it is
3497                  * available.
3498                  */
3499                 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3500                 if (ret)
3501                         goto out_remove_binding;
3502
3503                 /* Protect the session to make sure we hear the first
3504                  * beacon on the new channel.
3505                  */
3506                 iwl_mvm_protect_session(mvm, vif, duration, duration,
3507                                         vif->bss_conf.beacon_int / 2,
3508                                         true);
3509
3510                 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3511
3512                 iwl_mvm_update_quotas(mvm, false, NULL);
3513         }
3514
3515         goto out;
3516
3517 out_remove_binding:
3518         iwl_mvm_binding_remove_vif(mvm, vif);
3519         iwl_mvm_power_update_mac(mvm);
3520 out:
3521         if (ret)
3522                 mvmvif->phy_ctxt = NULL;
3523         return ret;
3524 }
3525 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3526                                       struct ieee80211_vif *vif,
3527                                       struct ieee80211_chanctx_conf *ctx)
3528 {
3529         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3530         int ret;
3531
3532         mutex_lock(&mvm->mutex);
3533         ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
3534         mutex_unlock(&mvm->mutex);
3535
3536         return ret;
3537 }
3538
3539 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3540                                            struct ieee80211_vif *vif,
3541                                            struct ieee80211_chanctx_conf *ctx,
3542                                            bool switching_chanctx)
3543 {
3544         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3545         struct ieee80211_vif *disabled_vif = NULL;
3546
3547         lockdep_assert_held(&mvm->mutex);
3548
3549         iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3550
3551         switch (vif->type) {
3552         case NL80211_IFTYPE_ADHOC:
3553                 goto out;
3554         case NL80211_IFTYPE_MONITOR:
3555                 mvmvif->monitor_active = false;
3556                 mvmvif->ps_disabled = false;
3557                 iwl_mvm_rm_snif_sta(mvm, vif);
3558                 break;
3559         case NL80211_IFTYPE_AP:
3560                 /* This part is triggered only during CSA */
3561                 if (!switching_chanctx || !mvmvif->ap_ibss_active)
3562                         goto out;
3563
3564                 mvmvif->csa_countdown = false;
3565
3566                 /* Set CS bit on all the stations */
3567                 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3568
3569                 /* Save blocked iface, the timeout is set on the next beacon */
3570                 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3571
3572                 mvmvif->ap_ibss_active = false;
3573                 break;
3574         case NL80211_IFTYPE_STATION:
3575                 if (!switching_chanctx)
3576                         break;
3577
3578                 disabled_vif = vif;
3579
3580                 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
3581                 break;
3582         default:
3583                 break;
3584         }
3585
3586         iwl_mvm_update_quotas(mvm, false, disabled_vif);
3587         iwl_mvm_binding_remove_vif(mvm, vif);
3588
3589 out:
3590         mvmvif->phy_ctxt = NULL;
3591         iwl_mvm_power_update_mac(mvm);
3592 }
3593
3594 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3595                                          struct ieee80211_vif *vif,
3596                                          struct ieee80211_chanctx_conf *ctx)
3597 {
3598         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3599
3600         mutex_lock(&mvm->mutex);
3601         __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
3602         mutex_unlock(&mvm->mutex);
3603 }
3604
3605 static int
3606 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3607                                 struct ieee80211_vif_chanctx_switch *vifs)
3608 {
3609         int ret;
3610
3611         mutex_lock(&mvm->mutex);
3612         __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3613         __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3614
3615         ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3616         if (ret) {
3617                 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3618                 goto out_reassign;
3619         }
3620
3621         ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3622                                            true);
3623         if (ret) {
3624                 IWL_ERR(mvm,
3625                         "failed to assign new_ctx during channel switch\n");
3626                 goto out_remove;
3627         }
3628
3629         /* we don't support TDLS during DCM - can be caused by channel switch */
3630         if (iwl_mvm_phy_ctx_count(mvm) > 1)
3631                 iwl_mvm_teardown_tdls_peers(mvm);
3632
3633         goto out;
3634
3635 out_remove:
3636         __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3637
3638 out_reassign:
3639         if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
3640                 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3641                 goto out_restart;
3642         }
3643
3644         if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3645                                          true)) {
3646                 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3647                 goto out_restart;
3648         }
3649
3650         goto out;
3651
3652 out_restart:
3653         /* things keep failing, better restart the hw */
3654         iwl_mvm_nic_restart(mvm, false);
3655
3656 out:
3657         mutex_unlock(&mvm->mutex);
3658
3659         return ret;
3660 }
3661
3662 static int
3663 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3664                                     struct ieee80211_vif_chanctx_switch *vifs)
3665 {
3666         int ret;
3667
3668         mutex_lock(&mvm->mutex);
3669         __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3670
3671         ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3672                                            true);
3673         if (ret) {
3674                 IWL_ERR(mvm,
3675                         "failed to assign new_ctx during channel switch\n");
3676                 goto out_reassign;
3677         }
3678
3679         goto out;
3680
3681 out_reassign:
3682         if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3683                                          true)) {
3684                 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3685                 goto out_restart;
3686         }
3687
3688         goto out;
3689
3690 out_restart:
3691         /* things keep failing, better restart the hw */
3692         iwl_mvm_nic_restart(mvm, false);
3693
3694 out:
3695         mutex_unlock(&mvm->mutex);
3696
3697         return ret;
3698 }
3699
3700 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3701                                       struct ieee80211_vif_chanctx_switch *vifs,
3702                                       int n_vifs,
3703                                       enum ieee80211_chanctx_switch_mode mode)
3704 {
3705         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3706         int ret;
3707
3708         /* we only support a single-vif right now */
3709         if (n_vifs > 1)
3710                 return -EOPNOTSUPP;
3711
3712         switch (mode) {
3713         case CHANCTX_SWMODE_SWAP_CONTEXTS:
3714                 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3715                 break;
3716         case CHANCTX_SWMODE_REASSIGN_VIF:
3717                 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
3718                 break;
3719         default:
3720                 ret = -EOPNOTSUPP;
3721                 break;
3722         }
3723
3724         return ret;
3725 }
3726
3727 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
3728 {
3729         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3730
3731         return mvm->ibss_manager;
3732 }
3733
3734 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3735                            struct ieee80211_sta *sta,
3736                            bool set)
3737 {
3738         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3739         struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3740
3741         if (!mvm_sta || !mvm_sta->vif) {
3742                 IWL_ERR(mvm, "Station is not associated to a vif\n");
3743                 return -EINVAL;
3744         }
3745
3746         return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3747 }
3748
3749 #ifdef CONFIG_NL80211_TESTMODE
3750 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3751         [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3752         [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
3753         [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
3754 };
3755
3756 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3757                                       struct ieee80211_vif *vif,
3758                                       void *data, int len)
3759 {
3760         struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3761         int err;
3762         u32 noa_duration;
3763
3764         err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy,
3765                         NULL);
3766         if (err)
3767                 return err;
3768
3769         if (!tb[IWL_MVM_TM_ATTR_CMD])
3770                 return -EINVAL;
3771
3772         switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3773         case IWL_MVM_TM_CMD_SET_NOA:
3774                 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3775                     !vif->bss_conf.enable_beacon ||
3776                     !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3777                         return -EINVAL;
3778
3779                 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3780                 if (noa_duration >= vif->bss_conf.beacon_int)
3781                         return -EINVAL;
3782
3783                 mvm->noa_duration = noa_duration;
3784                 mvm->noa_vif = vif;
3785
3786                 return iwl_mvm_update_quotas(mvm, false, NULL);
3787         case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3788                 /* must be associated client vif - ignore authorized */
3789                 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3790                     !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3791                     !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3792                         return -EINVAL;
3793
3794                 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
3795                         return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3796                 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3797         }
3798
3799         return -EOPNOTSUPP;
3800 }
3801
3802 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3803                                     struct ieee80211_vif *vif,
3804                                     void *data, int len)
3805 {
3806         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3807         int err;
3808
3809         mutex_lock(&mvm->mutex);
3810         err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3811         mutex_unlock(&mvm->mutex);
3812
3813         return err;
3814 }
3815 #endif
3816
3817 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3818                                    struct ieee80211_vif *vif,
3819                                    struct ieee80211_channel_switch *chsw)
3820 {
3821         /* By implementing this operation, we prevent mac80211 from
3822          * starting its own channel switch timer, so that we can call
3823          * ieee80211_chswitch_done() ourselves at the right time
3824          * (which is when the absence time event starts).
3825          */
3826
3827         IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3828                            "dummy channel switch op\n");
3829 }
3830
3831 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3832                                       struct ieee80211_vif *vif,
3833                                       struct ieee80211_channel_switch *chsw)
3834 {
3835         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3836         struct ieee80211_vif *csa_vif;
3837         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3838         u32 apply_time;
3839         int ret;
3840
3841         mutex_lock(&mvm->mutex);
3842
3843         mvmvif->csa_failed = false;
3844
3845         IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
3846                            chsw->chandef.center_freq1);
3847
3848         iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
3849                                        ieee80211_vif_to_wdev(vif),
3850                                        FW_DBG_TRIGGER_CHANNEL_SWITCH);
3851
3852         switch (vif->type) {
3853         case NL80211_IFTYPE_AP:
3854                 csa_vif =
3855                         rcu_dereference_protected(mvm->csa_vif,
3856                                                   lockdep_is_held(&mvm->mutex));
3857                 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3858                               "Another CSA is already in progress")) {
3859                         ret = -EBUSY;
3860                         goto out_unlock;
3861                 }
3862
3863                 /* we still didn't unblock tx. prevent new CS meanwhile */
3864                 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
3865                                               lockdep_is_held(&mvm->mutex))) {
3866                         ret = -EBUSY;
3867                         goto out_unlock;
3868                 }
3869
3870                 rcu_assign_pointer(mvm->csa_vif, vif);
3871
3872                 if (WARN_ONCE(mvmvif->csa_countdown,
3873                               "Previous CSA countdown didn't complete")) {
3874                         ret = -EBUSY;
3875                         goto out_unlock;
3876                 }
3877
3878                 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
3879
3880                 break;
3881         case NL80211_IFTYPE_STATION:
3882                 if (mvmvif->lqm_active)
3883                         iwl_mvm_send_lqm_cmd(vif,
3884                                              LQM_CMD_OPERATION_STOP_MEASUREMENT,
3885                                              0, 0);
3886
3887                 /* Schedule the time event to a bit before beacon 1,
3888                  * to make sure we're in the new channel when the
3889                  * GO/AP arrives. In case count <= 1 immediately schedule the
3890                  * TE (this might result with some packet loss or connection
3891                  * loss).
3892                  */
3893                 if (chsw->count <= 1)
3894                         apply_time = 0;
3895                 else
3896                         apply_time = chsw->device_timestamp +
3897                                 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3898                                   IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
3899
3900                 if (chsw->block_tx)
3901                         iwl_mvm_csa_client_absent(mvm, vif);
3902
3903                 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
3904                                             apply_time);
3905                 if (mvmvif->bf_data.bf_enabled) {
3906                         ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3907                         if (ret)
3908                                 goto out_unlock;
3909                 }
3910
3911                 break;
3912         default:
3913                 break;
3914         }
3915
3916         mvmvif->ps_disabled = true;
3917
3918         ret = iwl_mvm_power_update_ps(mvm);
3919         if (ret)
3920                 goto out_unlock;
3921
3922         /* we won't be on this channel any longer */
3923         iwl_mvm_teardown_tdls_peers(mvm);
3924
3925 out_unlock:
3926         mutex_unlock(&mvm->mutex);
3927
3928         return ret;
3929 }
3930
3931 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3932                                        struct ieee80211_vif *vif)
3933 {
3934         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3935         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3936         int ret;
3937
3938         mutex_lock(&mvm->mutex);
3939
3940         if (mvmvif->csa_failed) {
3941                 mvmvif->csa_failed = false;
3942                 ret = -EIO;
3943                 goto out_unlock;
3944         }
3945
3946         if (vif->type == NL80211_IFTYPE_STATION) {
3947                 struct iwl_mvm_sta *mvmsta;
3948
3949                 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3950                                                           mvmvif->ap_sta_id);
3951
3952                 if (WARN_ON(!mvmsta)) {
3953                         ret = -EIO;
3954                         goto out_unlock;
3955                 }
3956
3957                 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3958
3959                 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3960
3961                 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3962                 if (ret)
3963                         goto out_unlock;
3964
3965                 iwl_mvm_stop_session_protection(mvm, vif);
3966         }
3967
3968         mvmvif->ps_disabled = false;
3969
3970         ret = iwl_mvm_power_update_ps(mvm);
3971
3972 out_unlock:
3973         mutex_unlock(&mvm->mutex);
3974
3975         return ret;
3976 }
3977
3978 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3979                               struct ieee80211_vif *vif, u32 queues, bool drop)
3980 {
3981         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3982         struct iwl_mvm_vif *mvmvif;
3983         struct iwl_mvm_sta *mvmsta;
3984         struct ieee80211_sta *sta;
3985         int i;
3986         u32 msk = 0;
3987
3988         if (!vif || vif->type != NL80211_IFTYPE_STATION)
3989                 return;
3990
3991         /* Make sure we're done with the deferred traffic before flushing */
3992         flush_work(&mvm->add_stream_wk);
3993
3994         mutex_lock(&mvm->mutex);
3995         mvmvif = iwl_mvm_vif_from_mac80211(vif);
3996
3997         /* flush the AP-station and all TDLS peers */
3998         for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
3999                 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4000                                                 lockdep_is_held(&mvm->mutex));
4001                 if (IS_ERR_OR_NULL(sta))
4002                         continue;
4003
4004                 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4005                 if (mvmsta->vif != vif)
4006                         continue;
4007
4008                 /* make sure only TDLS peers or the AP are flushed */
4009                 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
4010
4011                 if (drop) {
4012                         if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0))
4013                                 IWL_ERR(mvm, "flush request fail\n");
4014                 } else {
4015                         msk |= mvmsta->tfd_queue_msk;
4016                         if (iwl_mvm_has_new_tx_api(mvm))
4017                                 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
4018                 }
4019         }
4020
4021         mutex_unlock(&mvm->mutex);
4022
4023         /* this can take a while, and we may need/want other operations
4024          * to succeed while doing this, so do it without the mutex held
4025          */
4026         if (!drop && !iwl_mvm_has_new_tx_api(mvm))
4027                 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
4028 }
4029
4030 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
4031                                   struct survey_info *survey)
4032 {
4033         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4034         int ret;
4035
4036         memset(survey, 0, sizeof(*survey));
4037
4038         /* only support global statistics right now */
4039         if (idx != 0)
4040                 return -ENOENT;
4041
4042         if (!fw_has_capa(&mvm->fw->ucode_capa,
4043                          IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
4044                 return -ENOENT;
4045
4046         mutex_lock(&mvm->mutex);
4047
4048         if (iwl_mvm_firmware_running(mvm)) {
4049                 ret = iwl_mvm_request_statistics(mvm, false);
4050                 if (ret)
4051                         goto out;
4052         }
4053
4054         survey->filled = SURVEY_INFO_TIME |
4055                          SURVEY_INFO_TIME_RX |
4056                          SURVEY_INFO_TIME_TX |
4057                          SURVEY_INFO_TIME_SCAN;
4058         survey->time = mvm->accu_radio_stats.on_time_rf +
4059                        mvm->radio_stats.on_time_rf;
4060         do_div(survey->time, USEC_PER_MSEC);
4061
4062         survey->time_rx = mvm->accu_radio_stats.rx_time +
4063                           mvm->radio_stats.rx_time;
4064         do_div(survey->time_rx, USEC_PER_MSEC);
4065
4066         survey->time_tx = mvm->accu_radio_stats.tx_time +
4067                           mvm->radio_stats.tx_time;
4068         do_div(survey->time_tx, USEC_PER_MSEC);
4069
4070         survey->time_scan = mvm->accu_radio_stats.on_time_scan +
4071                             mvm->radio_stats.on_time_scan;
4072         do_div(survey->time_scan, USEC_PER_MSEC);
4073
4074         ret = 0;
4075  out:
4076         mutex_unlock(&mvm->mutex);
4077         return ret;
4078 }
4079
4080 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
4081                                        struct ieee80211_vif *vif,
4082                                        struct ieee80211_sta *sta,
4083                                        struct station_info *sinfo)
4084 {
4085         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4086         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4087         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4088
4089         if (mvmsta->avg_energy) {
4090                 sinfo->signal_avg = mvmsta->avg_energy;
4091                 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG);
4092         }
4093
4094         if (!fw_has_capa(&mvm->fw->ucode_capa,
4095                          IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
4096                 return;
4097
4098         /* if beacon filtering isn't on mac80211 does it anyway */
4099         if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
4100                 return;
4101
4102         if (!vif->bss_conf.assoc)
4103                 return;
4104
4105         mutex_lock(&mvm->mutex);
4106
4107         if (mvmvif->ap_sta_id != mvmsta->sta_id)
4108                 goto unlock;
4109
4110         if (iwl_mvm_request_statistics(mvm, false))
4111                 goto unlock;
4112
4113         sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
4114                            mvmvif->beacon_stats.accu_num_beacons;
4115         sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
4116         if (mvmvif->beacon_stats.avg_signal) {
4117                 /* firmware only reports a value after RXing a few beacons */
4118                 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
4119                 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
4120         }
4121  unlock:
4122         mutex_unlock(&mvm->mutex);
4123 }
4124
4125 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
4126                                         struct ieee80211_vif *vif,
4127                                         const struct ieee80211_event *event)
4128 {
4129 #define CHECK_MLME_TRIGGER(_cnt, _fmt...)                               \
4130         do {                                                            \
4131                 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt))           \
4132                         break;                                          \
4133                 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt);      \
4134         } while (0)
4135
4136         struct iwl_fw_dbg_trigger_tlv *trig;
4137         struct iwl_fw_dbg_trigger_mlme *trig_mlme;
4138
4139         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
4140                 return;
4141
4142         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4143         trig_mlme = (void *)trig->data;
4144         if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4145                                            ieee80211_vif_to_wdev(vif), trig))
4146                 return;
4147
4148         if (event->u.mlme.data == ASSOC_EVENT) {
4149                 if (event->u.mlme.status == MLME_DENIED)
4150                         CHECK_MLME_TRIGGER(stop_assoc_denied,
4151                                            "DENIED ASSOC: reason %d",
4152                                             event->u.mlme.reason);
4153                 else if (event->u.mlme.status == MLME_TIMEOUT)
4154                         CHECK_MLME_TRIGGER(stop_assoc_timeout,
4155                                            "ASSOC TIMEOUT");
4156         } else if (event->u.mlme.data == AUTH_EVENT) {
4157                 if (event->u.mlme.status == MLME_DENIED)
4158                         CHECK_MLME_TRIGGER(stop_auth_denied,
4159                                            "DENIED AUTH: reason %d",
4160                                            event->u.mlme.reason);
4161                 else if (event->u.mlme.status == MLME_TIMEOUT)
4162                         CHECK_MLME_TRIGGER(stop_auth_timeout,
4163                                            "AUTH TIMEOUT");
4164         } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4165                 CHECK_MLME_TRIGGER(stop_rx_deauth,
4166                                    "DEAUTH RX %d", event->u.mlme.reason);
4167         } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4168                 CHECK_MLME_TRIGGER(stop_tx_deauth,
4169                                    "DEAUTH TX %d", event->u.mlme.reason);
4170         }
4171 #undef CHECK_MLME_TRIGGER
4172 }
4173
4174 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4175                                           struct ieee80211_vif *vif,
4176                                           const struct ieee80211_event *event)
4177 {
4178         struct iwl_fw_dbg_trigger_tlv *trig;
4179         struct iwl_fw_dbg_trigger_ba *ba_trig;
4180
4181         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4182                 return;
4183
4184         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4185         ba_trig = (void *)trig->data;
4186         if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4187                                            ieee80211_vif_to_wdev(vif), trig))
4188                 return;
4189
4190         if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4191                 return;
4192
4193         iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4194                                 "BAR received from %pM, tid %d, ssn %d",
4195                                 event->u.ba.sta->addr, event->u.ba.tid,
4196                                 event->u.ba.ssn);
4197 }
4198
4199 static void
4200 iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4201                                      struct ieee80211_vif *vif,
4202                                      const struct ieee80211_event *event)
4203 {
4204         struct iwl_fw_dbg_trigger_tlv *trig;
4205         struct iwl_fw_dbg_trigger_ba *ba_trig;
4206
4207         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4208                 return;
4209
4210         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4211         ba_trig = (void *)trig->data;
4212         if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4213                                            ieee80211_vif_to_wdev(vif), trig))
4214                 return;
4215
4216         if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4217                 return;
4218
4219         iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4220                                 "Frame from %pM timed out, tid %d",
4221                                 event->u.ba.sta->addr, event->u.ba.tid);
4222 }
4223
4224 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4225                                        struct ieee80211_vif *vif,
4226                                        const struct ieee80211_event *event)
4227 {
4228         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4229
4230         switch (event->type) {
4231         case MLME_EVENT:
4232                 iwl_mvm_event_mlme_callback(mvm, vif, event);
4233                 break;
4234         case BAR_RX_EVENT:
4235                 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4236                 break;
4237         case BA_FRAME_TIMEOUT:
4238                 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4239                 break;
4240         default:
4241                 break;
4242         }
4243 }
4244
4245 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
4246                                      struct iwl_mvm_internal_rxq_notif *notif,
4247                                      u32 size)
4248 {
4249         u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
4250         int ret;
4251
4252         lockdep_assert_held(&mvm->mutex);
4253
4254         /* TODO - remove a000 disablement when we have RXQ config API */
4255         if (!iwl_mvm_has_new_rx_api(mvm) ||
4256             mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_A000)
4257                 return;
4258
4259         notif->cookie = mvm->queue_sync_cookie;
4260
4261         if (notif->sync)
4262                 atomic_set(&mvm->queue_sync_counter,
4263                            mvm->trans->num_rx_queues);
4264
4265         ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size);
4266         if (ret) {
4267                 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
4268                 goto out;
4269         }
4270
4271         if (notif->sync) {
4272                 ret = wait_event_timeout(mvm->rx_sync_waitq,
4273                                          atomic_read(&mvm->queue_sync_counter) == 0 ||
4274                                          iwl_mvm_is_radio_killed(mvm),
4275                                          HZ);
4276                 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm));
4277         }
4278
4279 out:
4280         atomic_set(&mvm->queue_sync_counter, 0);
4281         mvm->queue_sync_cookie++;
4282 }
4283
4284 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
4285 {
4286         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4287         struct iwl_mvm_internal_rxq_notif data = {
4288                 .type = IWL_MVM_RXQ_EMPTY,
4289                 .sync = 1,
4290         };
4291
4292         mutex_lock(&mvm->mutex);
4293         iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
4294         mutex_unlock(&mvm->mutex);
4295 }
4296
4297 const struct ieee80211_ops iwl_mvm_hw_ops = {
4298         .tx = iwl_mvm_mac_tx,
4299         .ampdu_action = iwl_mvm_mac_ampdu_action,
4300         .start = iwl_mvm_mac_start,
4301         .reconfig_complete = iwl_mvm_mac_reconfig_complete,
4302         .stop = iwl_mvm_mac_stop,
4303         .add_interface = iwl_mvm_mac_add_interface,
4304         .remove_interface = iwl_mvm_mac_remove_interface,
4305         .config = iwl_mvm_mac_config,
4306         .prepare_multicast = iwl_mvm_prepare_multicast,
4307         .configure_filter = iwl_mvm_configure_filter,
4308         .config_iface_filter = iwl_mvm_config_iface_filter,
4309         .bss_info_changed = iwl_mvm_bss_info_changed,
4310         .hw_scan = iwl_mvm_mac_hw_scan,
4311         .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
4312         .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
4313         .sta_state = iwl_mvm_mac_sta_state,
4314         .sta_notify = iwl_mvm_mac_sta_notify,
4315         .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
4316         .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
4317         .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
4318         .sta_rc_update = iwl_mvm_sta_rc_update,
4319         .conf_tx = iwl_mvm_mac_conf_tx,
4320         .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
4321         .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
4322         .flush = iwl_mvm_mac_flush,
4323         .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4324         .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
4325         .set_key = iwl_mvm_mac_set_key,
4326         .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4327         .remain_on_channel = iwl_mvm_roc,
4328         .cancel_remain_on_channel = iwl_mvm_cancel_roc,
4329         .add_chanctx = iwl_mvm_add_chanctx,
4330         .remove_chanctx = iwl_mvm_remove_chanctx,
4331         .change_chanctx = iwl_mvm_change_chanctx,
4332         .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4333         .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
4334         .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
4335
4336         .start_ap = iwl_mvm_start_ap_ibss,
4337         .stop_ap = iwl_mvm_stop_ap_ibss,
4338         .join_ibss = iwl_mvm_start_ap_ibss,
4339         .leave_ibss = iwl_mvm_stop_ap_ibss,
4340
4341         .tx_last_beacon = iwl_mvm_tx_last_beacon,
4342
4343         .set_tim = iwl_mvm_set_tim,
4344
4345         .channel_switch = iwl_mvm_channel_switch,
4346         .pre_channel_switch = iwl_mvm_pre_channel_switch,
4347         .post_channel_switch = iwl_mvm_post_channel_switch,
4348
4349         .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4350         .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4351         .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4352
4353         .event_callback = iwl_mvm_mac_event_callback,
4354
4355         .sync_rx_queues = iwl_mvm_sync_rx_queues,
4356
4357         CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4358
4359 #ifdef CONFIG_PM_SLEEP
4360         /* look at d3.c */
4361         .suspend = iwl_mvm_suspend,
4362         .resume = iwl_mvm_resume,
4363         .set_wakeup = iwl_mvm_set_wakeup,
4364         .set_rekey_data = iwl_mvm_set_rekey_data,
4365 #if IS_ENABLED(CONFIG_IPV6)
4366         .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4367 #endif
4368         .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4369 #endif
4370         .get_survey = iwl_mvm_mac_get_survey,
4371         .sta_statistics = iwl_mvm_mac_sta_statistics,
4372 };