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         mvm->monitor_on = false;
1081
1082         /* keep statistics ticking */
1083         iwl_mvm_accu_radio_stats(mvm);
1084 }
1085
1086 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1087 {
1088         int ret;
1089
1090         lockdep_assert_held(&mvm->mutex);
1091
1092         if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1093                 /*
1094                  * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1095                  * so later code will - from now on - see that we're doing it.
1096                  */
1097                 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1098                 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1099                 /* Clean up some internal and mac80211 state on restart */
1100                 iwl_mvm_restart_cleanup(mvm);
1101         } else {
1102                 /* Hold the reference to prevent runtime suspend while
1103                  * the start procedure runs.  It's a bit confusing
1104                  * that the UCODE_DOWN reference is taken, but it just
1105                  * means "UCODE is not UP yet". ( TODO: rename this
1106                  * reference).
1107                  */
1108                 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1109         }
1110         ret = iwl_mvm_up(mvm);
1111
1112         if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1113                 /* Something went wrong - we need to finish some cleanup
1114                  * that normally iwl_mvm_mac_restart_complete() below
1115                  * would do.
1116                  */
1117                 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1118                 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1119         }
1120
1121         return ret;
1122 }
1123
1124 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1125 {
1126         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1127         int ret;
1128
1129         /* Some hw restart cleanups must not hold the mutex */
1130         if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1131                 /*
1132                  * Make sure we are out of d0i3. This is needed
1133                  * to make sure the reference accounting is correct
1134                  * (and there is no stale d0i3_exit_work).
1135                  */
1136                 wait_event_timeout(mvm->d0i3_exit_waitq,
1137                                    !test_bit(IWL_MVM_STATUS_IN_D0I3,
1138                                              &mvm->status),
1139                                    HZ);
1140         }
1141
1142         mutex_lock(&mvm->mutex);
1143         ret = __iwl_mvm_mac_start(mvm);
1144         mutex_unlock(&mvm->mutex);
1145
1146         return ret;
1147 }
1148
1149 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1150 {
1151         int ret;
1152
1153         mutex_lock(&mvm->mutex);
1154
1155         clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1156         iwl_mvm_d0i3_enable_tx(mvm, NULL);
1157         ret = iwl_mvm_update_quotas(mvm, true, NULL);
1158         if (ret)
1159                 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1160                         ret);
1161
1162         /* allow transport/FW low power modes */
1163         iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1164
1165         /*
1166          * If we have TDLS peers, remove them. We don't know the last seqno/PN
1167          * of packets the FW sent out, so we must reconnect.
1168          */
1169         iwl_mvm_teardown_tdls_peers(mvm);
1170
1171         mutex_unlock(&mvm->mutex);
1172 }
1173
1174 static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1175 {
1176         if (iwl_mvm_is_d0i3_supported(mvm) &&
1177             iwl_mvm_enter_d0i3_on_suspend(mvm))
1178                 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1179                                               !test_bit(IWL_MVM_STATUS_IN_D0I3,
1180                                                         &mvm->status),
1181                                               HZ),
1182                           "D0i3 exit on resume timed out\n");
1183 }
1184
1185 static void
1186 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1187                               enum ieee80211_reconfig_type reconfig_type)
1188 {
1189         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1190
1191         switch (reconfig_type) {
1192         case IEEE80211_RECONFIG_TYPE_RESTART:
1193                 iwl_mvm_restart_complete(mvm);
1194                 break;
1195         case IEEE80211_RECONFIG_TYPE_SUSPEND:
1196                 iwl_mvm_resume_complete(mvm);
1197                 break;
1198         }
1199 }
1200
1201 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1202 {
1203         lockdep_assert_held(&mvm->mutex);
1204
1205         /* firmware counters are obviously reset now, but we shouldn't
1206          * partially track so also clear the fw_reset_accu counters.
1207          */
1208         memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1209
1210         /* async_handlers_wk is now blocked */
1211
1212         /*
1213          * The work item could be running or queued if the
1214          * ROC time event stops just as we get here.
1215          */
1216         flush_work(&mvm->roc_done_wk);
1217
1218         iwl_mvm_stop_device(mvm);
1219
1220         iwl_mvm_async_handlers_purge(mvm);
1221         /* async_handlers_list is empty and will stay empty: HW is stopped */
1222
1223         /* the fw is stopped, the aux sta is dead: clean up driver state */
1224         iwl_mvm_del_aux_sta(mvm);
1225
1226         /*
1227          * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1228          * won't be called in this case).
1229          * But make sure to cleanup interfaces that have gone down before/during
1230          * HW restart was requested.
1231          */
1232         if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1233                 ieee80211_iterate_interfaces(mvm->hw, 0,
1234                                              iwl_mvm_cleanup_iterator, mvm);
1235
1236         /* We shouldn't have any UIDs still set.  Loop over all the UIDs to
1237          * make sure there's nothing left there and warn if any is found.
1238          */
1239         if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1240                 int i;
1241
1242                 for (i = 0; i < mvm->max_scans; i++) {
1243                         if (WARN_ONCE(mvm->scan_uid_status[i],
1244                                       "UMAC scan UID %d status was not cleaned\n",
1245                                       i))
1246                                 mvm->scan_uid_status[i] = 0;
1247                 }
1248         }
1249 }
1250
1251 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1252 {
1253         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1254
1255         flush_work(&mvm->d0i3_exit_work);
1256         flush_work(&mvm->async_handlers_wk);
1257         flush_work(&mvm->add_stream_wk);
1258
1259         /*
1260          * Lock and clear the firmware running bit here already, so that
1261          * new commands coming in elsewhere, e.g. from debugfs, will not
1262          * be able to proceed. This is important here because one of those
1263          * debugfs files causes the firmware dump to be triggered, and if we
1264          * don't stop debugfs accesses before canceling that it could be
1265          * retriggered after we flush it but before we've cleared the bit.
1266          */
1267         clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1268
1269         iwl_fw_cancel_dump(&mvm->fwrt);
1270         cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
1271         cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
1272         iwl_fw_free_dump_desc(&mvm->fwrt);
1273
1274         mutex_lock(&mvm->mutex);
1275         __iwl_mvm_mac_stop(mvm);
1276         mutex_unlock(&mvm->mutex);
1277
1278         /*
1279          * The worker might have been waiting for the mutex, let it run and
1280          * discover that its list is now empty.
1281          */
1282         cancel_work_sync(&mvm->async_handlers_wk);
1283 }
1284
1285 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1286 {
1287         u16 i;
1288
1289         lockdep_assert_held(&mvm->mutex);
1290
1291         for (i = 0; i < NUM_PHY_CTX; i++)
1292                 if (!mvm->phy_ctxts[i].ref)
1293                         return &mvm->phy_ctxts[i];
1294
1295         IWL_ERR(mvm, "No available PHY context\n");
1296         return NULL;
1297 }
1298
1299 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1300                                 s16 tx_power)
1301 {
1302         struct iwl_dev_tx_power_cmd cmd = {
1303                 .v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1304                 .v3.mac_context_id =
1305                         cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1306                 .v3.pwr_restriction = cpu_to_le16(8 * tx_power),
1307         };
1308         int len = sizeof(cmd);
1309
1310         if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1311                 cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1312
1313         if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1314                 len = sizeof(cmd.v3);
1315
1316         return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
1317 }
1318
1319 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1320                                      struct ieee80211_vif *vif)
1321 {
1322         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1323         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1324         int ret;
1325
1326         mvmvif->mvm = mvm;
1327
1328         /*
1329          * make sure D0i3 exit is completed, otherwise a target access
1330          * during tx queue configuration could be done when still in
1331          * D0i3 state.
1332          */
1333         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1334         if (ret)
1335                 return ret;
1336
1337         /*
1338          * Not much to do here. The stack will not allow interface
1339          * types or combinations that we didn't advertise, so we
1340          * don't really have to check the types.
1341          */
1342
1343         mutex_lock(&mvm->mutex);
1344
1345         /* make sure that beacon statistics don't go backwards with FW reset */
1346         if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1347                 mvmvif->beacon_stats.accu_num_beacons +=
1348                         mvmvif->beacon_stats.num_beacons;
1349
1350         /* Allocate resources for the MAC context, and add it to the fw  */
1351         ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1352         if (ret)
1353                 goto out_unlock;
1354
1355         /* Counting number of interfaces is needed for legacy PM */
1356         if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1357                 mvm->vif_count++;
1358
1359         /*
1360          * The AP binding flow can be done only after the beacon
1361          * template is configured (which happens only in the mac80211
1362          * start_ap() flow), and adding the broadcast station can happen
1363          * only after the binding.
1364          * In addition, since modifying the MAC before adding a bcast
1365          * station is not allowed by the FW, delay the adding of MAC context to
1366          * the point where we can also add the bcast station.
1367          * In short: there's not much we can do at this point, other than
1368          * allocating resources :)
1369          */
1370         if (vif->type == NL80211_IFTYPE_AP ||
1371             vif->type == NL80211_IFTYPE_ADHOC) {
1372                 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1373                 if (ret) {
1374                         IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1375                         goto out_release;
1376                 }
1377
1378                 /*
1379                  * Only queue for this station is the mcast queue,
1380                  * which shouldn't be in TFD mask anyway
1381                  */
1382                 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta,
1383                                                0, vif->type,
1384                                                IWL_STA_MULTICAST);
1385                 if (ret)
1386                         goto out_release;
1387
1388                 iwl_mvm_vif_dbgfs_register(mvm, vif);
1389                 goto out_unlock;
1390         }
1391
1392         mvmvif->features |= hw->netdev_features;
1393
1394         ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1395         if (ret)
1396                 goto out_release;
1397
1398         ret = iwl_mvm_power_update_mac(mvm);
1399         if (ret)
1400                 goto out_remove_mac;
1401
1402         /* beacon filtering */
1403         ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1404         if (ret)
1405                 goto out_remove_mac;
1406
1407         if (!mvm->bf_allowed_vif &&
1408             vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1409                 mvm->bf_allowed_vif = mvmvif;
1410                 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1411                                      IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1412         }
1413
1414         /*
1415          * P2P_DEVICE interface does not have a channel context assigned to it,
1416          * so a dedicated PHY context is allocated to it and the corresponding
1417          * MAC context is bound to it at this stage.
1418          */
1419         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1420
1421                 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1422                 if (!mvmvif->phy_ctxt) {
1423                         ret = -ENOSPC;
1424                         goto out_free_bf;
1425                 }
1426
1427                 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1428                 ret = iwl_mvm_binding_add_vif(mvm, vif);
1429                 if (ret)
1430                         goto out_unref_phy;
1431
1432                 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif);
1433                 if (ret)
1434                         goto out_unbind;
1435
1436                 /* Save a pointer to p2p device vif, so it can later be used to
1437                  * update the p2p device MAC when a GO is started/stopped */
1438                 mvm->p2p_device_vif = vif;
1439         }
1440
1441         if (vif->type == NL80211_IFTYPE_MONITOR)
1442                 mvm->monitor_on = true;
1443
1444         iwl_mvm_vif_dbgfs_register(mvm, vif);
1445         goto out_unlock;
1446
1447  out_unbind:
1448         iwl_mvm_binding_remove_vif(mvm, vif);
1449  out_unref_phy:
1450         iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1451  out_free_bf:
1452         if (mvm->bf_allowed_vif == mvmvif) {
1453                 mvm->bf_allowed_vif = NULL;
1454                 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1455                                        IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1456         }
1457  out_remove_mac:
1458         mvmvif->phy_ctxt = NULL;
1459         iwl_mvm_mac_ctxt_remove(mvm, vif);
1460  out_release:
1461         if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1462                 mvm->vif_count--;
1463  out_unlock:
1464         mutex_unlock(&mvm->mutex);
1465
1466         iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1467
1468         return ret;
1469 }
1470
1471 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1472                                         struct ieee80211_vif *vif)
1473 {
1474         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1475                 /*
1476                  * Flush the ROC worker which will flush the OFFCHANNEL queue.
1477                  * We assume here that all the packets sent to the OFFCHANNEL
1478                  * queue are sent in ROC session.
1479                  */
1480                 flush_work(&mvm->roc_done_wk);
1481         }
1482 }
1483
1484 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1485                                          struct ieee80211_vif *vif)
1486 {
1487         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1488         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1489
1490         iwl_mvm_prepare_mac_removal(mvm, vif);
1491
1492         mutex_lock(&mvm->mutex);
1493
1494         if (mvm->bf_allowed_vif == mvmvif) {
1495                 mvm->bf_allowed_vif = NULL;
1496                 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1497                                        IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1498         }
1499
1500         iwl_mvm_vif_dbgfs_clean(mvm, vif);
1501
1502         /*
1503          * For AP/GO interface, the tear down of the resources allocated to the
1504          * interface is be handled as part of the stop_ap flow.
1505          */
1506         if (vif->type == NL80211_IFTYPE_AP ||
1507             vif->type == NL80211_IFTYPE_ADHOC) {
1508 #ifdef CONFIG_NL80211_TESTMODE
1509                 if (vif == mvm->noa_vif) {
1510                         mvm->noa_vif = NULL;
1511                         mvm->noa_duration = 0;
1512                 }
1513 #endif
1514                 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta);
1515                 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1516                 goto out_release;
1517         }
1518
1519         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1520                 mvm->p2p_device_vif = NULL;
1521                 iwl_mvm_rm_p2p_bcast_sta(mvm, vif);
1522                 iwl_mvm_binding_remove_vif(mvm, vif);
1523                 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1524                 mvmvif->phy_ctxt = NULL;
1525         }
1526
1527         if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1528                 mvm->vif_count--;
1529
1530         iwl_mvm_power_update_mac(mvm);
1531         iwl_mvm_mac_ctxt_remove(mvm, vif);
1532
1533         if (vif->type == NL80211_IFTYPE_MONITOR)
1534                 mvm->monitor_on = false;
1535
1536 out_release:
1537         mutex_unlock(&mvm->mutex);
1538 }
1539
1540 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1541 {
1542         return 0;
1543 }
1544
1545 struct iwl_mvm_mc_iter_data {
1546         struct iwl_mvm *mvm;
1547         int port_id;
1548 };
1549
1550 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1551                                       struct ieee80211_vif *vif)
1552 {
1553         struct iwl_mvm_mc_iter_data *data = _data;
1554         struct iwl_mvm *mvm = data->mvm;
1555         struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1556         struct iwl_host_cmd hcmd = {
1557                 .id = MCAST_FILTER_CMD,
1558                 .flags = CMD_ASYNC,
1559                 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1560         };
1561         int ret, len;
1562
1563         /* if we don't have free ports, mcast frames will be dropped */
1564         if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1565                 return;
1566
1567         if (vif->type != NL80211_IFTYPE_STATION ||
1568             !vif->bss_conf.assoc)
1569                 return;
1570
1571         cmd->port_id = data->port_id++;
1572         memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1573         len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1574
1575         hcmd.len[0] = len;
1576         hcmd.data[0] = cmd;
1577
1578         ret = iwl_mvm_send_cmd(mvm, &hcmd);
1579         if (ret)
1580                 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1581 }
1582
1583 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1584 {
1585         struct iwl_mvm_mc_iter_data iter_data = {
1586                 .mvm = mvm,
1587         };
1588
1589         lockdep_assert_held(&mvm->mutex);
1590
1591         if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1592                 return;
1593
1594         ieee80211_iterate_active_interfaces_atomic(
1595                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1596                 iwl_mvm_mc_iface_iterator, &iter_data);
1597 }
1598
1599 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1600                                      struct netdev_hw_addr_list *mc_list)
1601 {
1602         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1603         struct iwl_mcast_filter_cmd *cmd;
1604         struct netdev_hw_addr *addr;
1605         int addr_count;
1606         bool pass_all;
1607         int len;
1608
1609         addr_count = netdev_hw_addr_list_count(mc_list);
1610         pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1611                    IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1612         if (pass_all)
1613                 addr_count = 0;
1614
1615         len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1616         cmd = kzalloc(len, GFP_ATOMIC);
1617         if (!cmd)
1618                 return 0;
1619
1620         if (pass_all) {
1621                 cmd->pass_all = 1;
1622                 return (u64)(unsigned long)cmd;
1623         }
1624
1625         netdev_hw_addr_list_for_each(addr, mc_list) {
1626                 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1627                                    cmd->count, addr->addr);
1628                 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1629                        addr->addr, ETH_ALEN);
1630                 cmd->count++;
1631         }
1632
1633         return (u64)(unsigned long)cmd;
1634 }
1635
1636 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1637                                      unsigned int changed_flags,
1638                                      unsigned int *total_flags,
1639                                      u64 multicast)
1640 {
1641         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1642         struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1643
1644         mutex_lock(&mvm->mutex);
1645
1646         /* replace previous configuration */
1647         kfree(mvm->mcast_filter_cmd);
1648         mvm->mcast_filter_cmd = cmd;
1649
1650         if (!cmd)
1651                 goto out;
1652
1653         if (changed_flags & FIF_ALLMULTI)
1654                 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
1655
1656         if (cmd->pass_all)
1657                 cmd->count = 0;
1658
1659         iwl_mvm_recalc_multicast(mvm);
1660 out:
1661         mutex_unlock(&mvm->mutex);
1662         *total_flags = 0;
1663 }
1664
1665 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1666                                         struct ieee80211_vif *vif,
1667                                         unsigned int filter_flags,
1668                                         unsigned int changed_flags)
1669 {
1670         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1671
1672         /* We support only filter for probe requests */
1673         if (!(changed_flags & FIF_PROBE_REQ))
1674                 return;
1675
1676         /* Supported only for p2p client interfaces */
1677         if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1678             !vif->p2p)
1679                 return;
1680
1681         mutex_lock(&mvm->mutex);
1682         iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1683         mutex_unlock(&mvm->mutex);
1684 }
1685
1686 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1687 struct iwl_bcast_iter_data {
1688         struct iwl_mvm *mvm;
1689         struct iwl_bcast_filter_cmd *cmd;
1690         u8 current_filter;
1691 };
1692
1693 static void
1694 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1695                          const struct iwl_fw_bcast_filter *in_filter,
1696                          struct iwl_fw_bcast_filter *out_filter)
1697 {
1698         struct iwl_fw_bcast_filter_attr *attr;
1699         int i;
1700
1701         memcpy(out_filter, in_filter, sizeof(*out_filter));
1702
1703         for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1704                 attr = &out_filter->attrs[i];
1705
1706                 if (!attr->mask)
1707                         break;
1708
1709                 switch (attr->reserved1) {
1710                 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1711                         if (vif->bss_conf.arp_addr_cnt != 1) {
1712                                 attr->mask = 0;
1713                                 continue;
1714                         }
1715
1716                         attr->val = vif->bss_conf.arp_addr_list[0];
1717                         break;
1718                 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1719                         attr->val = *(__be32 *)&vif->addr[2];
1720                         break;
1721                 default:
1722                         break;
1723                 }
1724                 attr->reserved1 = 0;
1725                 out_filter->num_attrs++;
1726         }
1727 }
1728
1729 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1730                                           struct ieee80211_vif *vif)
1731 {
1732         struct iwl_bcast_iter_data *data = _data;
1733         struct iwl_mvm *mvm = data->mvm;
1734         struct iwl_bcast_filter_cmd *cmd = data->cmd;
1735         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1736         struct iwl_fw_bcast_mac *bcast_mac;
1737         int i;
1738
1739         if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1740                 return;
1741
1742         bcast_mac = &cmd->macs[mvmvif->id];
1743
1744         /*
1745          * enable filtering only for associated stations, but not for P2P
1746          * Clients
1747          */
1748         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1749             !vif->bss_conf.assoc)
1750                 return;
1751
1752         bcast_mac->default_discard = 1;
1753
1754         /* copy all configured filters */
1755         for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1756                 /*
1757                  * Make sure we don't exceed our filters limit.
1758                  * if there is still a valid filter to be configured,
1759                  * be on the safe side and just allow bcast for this mac.
1760                  */
1761                 if (WARN_ON_ONCE(data->current_filter >=
1762                                  ARRAY_SIZE(cmd->filters))) {
1763                         bcast_mac->default_discard = 0;
1764                         bcast_mac->attached_filters = 0;
1765                         break;
1766                 }
1767
1768                 iwl_mvm_set_bcast_filter(vif,
1769                                          &mvm->bcast_filters[i],
1770                                          &cmd->filters[data->current_filter]);
1771
1772                 /* skip current filter if it contains no attributes */
1773                 if (!cmd->filters[data->current_filter].num_attrs)
1774                         continue;
1775
1776                 /* attach the filter to current mac */
1777                 bcast_mac->attached_filters |=
1778                                 cpu_to_le16(BIT(data->current_filter));
1779
1780                 data->current_filter++;
1781         }
1782 }
1783
1784 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1785                                     struct iwl_bcast_filter_cmd *cmd)
1786 {
1787         struct iwl_bcast_iter_data iter_data = {
1788                 .mvm = mvm,
1789                 .cmd = cmd,
1790         };
1791
1792         if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1793                 return false;
1794
1795         memset(cmd, 0, sizeof(*cmd));
1796         cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1797         cmd->max_macs = ARRAY_SIZE(cmd->macs);
1798
1799 #ifdef CONFIG_IWLWIFI_DEBUGFS
1800         /* use debugfs filters/macs if override is configured */
1801         if (mvm->dbgfs_bcast_filtering.override) {
1802                 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1803                        sizeof(cmd->filters));
1804                 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1805                        sizeof(cmd->macs));
1806                 return true;
1807         }
1808 #endif
1809
1810         /* if no filters are configured, do nothing */
1811         if (!mvm->bcast_filters)
1812                 return false;
1813
1814         /* configure and attach these filters for each associated sta vif */
1815         ieee80211_iterate_active_interfaces(
1816                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1817                 iwl_mvm_bcast_filter_iterator, &iter_data);
1818
1819         return true;
1820 }
1821
1822 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
1823 {
1824         struct iwl_bcast_filter_cmd cmd;
1825
1826         if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1827                 return 0;
1828
1829         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1830                 return 0;
1831
1832         return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1833                                     sizeof(cmd), &cmd);
1834 }
1835 #else
1836 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
1837 {
1838         return 0;
1839 }
1840 #endif
1841
1842 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1843                                     struct ieee80211_vif *vif)
1844 {
1845         struct iwl_mu_group_mgmt_cmd cmd = {};
1846
1847         memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1848                WLAN_MEMBERSHIP_LEN);
1849         memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1850                WLAN_USER_POSITION_LEN);
1851
1852         return iwl_mvm_send_cmd_pdu(mvm,
1853                                     WIDE_ID(DATA_PATH_GROUP,
1854                                             UPDATE_MU_GROUPS_CMD),
1855                                     0, sizeof(cmd), &cmd);
1856 }
1857
1858 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1859                                            struct ieee80211_vif *vif)
1860 {
1861         if (vif->mu_mimo_owner) {
1862                 struct iwl_mu_group_mgmt_notif *notif = _data;
1863
1864                 /*
1865                  * MU-MIMO Group Id action frame is little endian. We treat
1866                  * the data received from firmware as if it came from the
1867                  * action frame, so no conversion is needed.
1868                  */
1869                 ieee80211_update_mu_groups(vif,
1870                                            (u8 *)&notif->membership_status,
1871                                            (u8 *)&notif->user_position);
1872         }
1873 }
1874
1875 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1876                                struct iwl_rx_cmd_buffer *rxb)
1877 {
1878         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1879         struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1880
1881         ieee80211_iterate_active_interfaces_atomic(
1882                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1883                         iwl_mvm_mu_mimo_iface_iterator, notif);
1884 }
1885
1886 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1887                                              struct ieee80211_vif *vif,
1888                                              struct ieee80211_bss_conf *bss_conf,
1889                                              u32 changes)
1890 {
1891         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1892         int ret;
1893
1894         /*
1895          * Re-calculate the tsf id, as the master-slave relations depend on the
1896          * beacon interval, which was not known when the station interface was
1897          * added.
1898          */
1899         if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1900                 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1901
1902         if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc &&
1903             mvmvif->lqm_active)
1904                 iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT,
1905                                      0, 0);
1906
1907         /*
1908          * If we're not associated yet, take the (new) BSSID before associating
1909          * so the firmware knows. If we're already associated, then use the old
1910          * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1911          * branch for disassociation below.
1912          */
1913         if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1914                 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1915
1916         ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
1917         if (ret)
1918                 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1919
1920         /* after sending it once, adopt mac80211 data */
1921         memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1922         mvmvif->associated = bss_conf->assoc;
1923
1924         if (changes & BSS_CHANGED_ASSOC) {
1925                 if (bss_conf->assoc) {
1926                         /* clear statistics to get clean beacon counter */
1927                         iwl_mvm_request_statistics(mvm, true);
1928                         memset(&mvmvif->beacon_stats, 0,
1929                                sizeof(mvmvif->beacon_stats));
1930
1931                         /* add quota for this interface */
1932                         ret = iwl_mvm_update_quotas(mvm, true, NULL);
1933                         if (ret) {
1934                                 IWL_ERR(mvm, "failed to update quotas\n");
1935                                 return;
1936                         }
1937
1938                         if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1939                                      &mvm->status)) {
1940                                 /*
1941                                  * If we're restarting then the firmware will
1942                                  * obviously have lost synchronisation with
1943                                  * the AP. It will attempt to synchronise by
1944                                  * itself, but we can make it more reliable by
1945                                  * scheduling a session protection time event.
1946                                  *
1947                                  * The firmware needs to receive a beacon to
1948                                  * catch up with synchronisation, use 110% of
1949                                  * the beacon interval.
1950                                  *
1951                                  * Set a large maximum delay to allow for more
1952                                  * than a single interface.
1953                                  */
1954                                 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1955                                 iwl_mvm_protect_session(mvm, vif, dur, dur,
1956                                                         5 * dur, false);
1957                         }
1958
1959                         iwl_mvm_sf_update(mvm, vif, false);
1960                         iwl_mvm_power_vif_assoc(mvm, vif);
1961                         if (vif->p2p) {
1962                                 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1963                                 iwl_mvm_update_smps(mvm, vif,
1964                                                     IWL_MVM_SMPS_REQ_PROT,
1965                                                     IEEE80211_SMPS_DYNAMIC);
1966                         }
1967                 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) {
1968                         /*
1969                          * If update fails - SF might be running in associated
1970                          * mode while disassociated - which is forbidden.
1971                          */
1972                         WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1973                                   "Failed to update SF upon disassociation\n");
1974
1975                         /*
1976                          * If we get an assert during the connection (after the
1977                          * station has been added, but before the vif is set
1978                          * to associated), mac80211 will re-add the station and
1979                          * then configure the vif. Since the vif is not
1980                          * associated, we would remove the station here and
1981                          * this would fail the recovery.
1982                          */
1983                         if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1984                                       &mvm->status)) {
1985                                 /*
1986                                  * Remove AP station now that
1987                                  * the MAC is unassoc
1988                                  */
1989                                 ret = iwl_mvm_rm_sta_id(mvm, vif,
1990                                                         mvmvif->ap_sta_id);
1991                                 if (ret)
1992                                         IWL_ERR(mvm,
1993                                                 "failed to remove AP station\n");
1994
1995                                 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1996                                         mvm->d0i3_ap_sta_id =
1997                                                 IWL_MVM_INVALID_STA;
1998                                 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
1999                         }
2000
2001                         /* remove quota for this interface */
2002                         ret = iwl_mvm_update_quotas(mvm, false, NULL);
2003                         if (ret)
2004                                 IWL_ERR(mvm, "failed to update quotas\n");
2005
2006                         if (vif->p2p)
2007                                 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
2008
2009                         /* this will take the cleared BSSID from bss_conf */
2010                         ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2011                         if (ret)
2012                                 IWL_ERR(mvm,
2013                                         "failed to update MAC %pM (clear after unassoc)\n",
2014                                         vif->addr);
2015                 }
2016
2017                 /*
2018                  * The firmware tracks the MU-MIMO group on its own.
2019                  * However, on HW restart we should restore this data.
2020                  */
2021                 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2022                     (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
2023                         ret = iwl_mvm_update_mu_groups(mvm, vif);
2024                         if (ret)
2025                                 IWL_ERR(mvm,
2026                                         "failed to update VHT MU_MIMO groups\n");
2027                 }
2028
2029                 iwl_mvm_recalc_multicast(mvm);
2030                 iwl_mvm_configure_bcast_filter(mvm);
2031
2032                 /* reset rssi values */
2033                 mvmvif->bf_data.ave_beacon_signal = 0;
2034
2035                 iwl_mvm_bt_coex_vif_change(mvm);
2036                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2037                                     IEEE80211_SMPS_AUTOMATIC);
2038                 if (fw_has_capa(&mvm->fw->ucode_capa,
2039                                 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2040                         iwl_mvm_config_scan(mvm);
2041         }
2042
2043         if (changes & BSS_CHANGED_BEACON_INFO) {
2044                 /*
2045                  * We received a beacon from the associated AP so
2046                  * remove the session protection.
2047                  */
2048                 iwl_mvm_stop_session_protection(mvm, vif);
2049
2050                 iwl_mvm_sf_update(mvm, vif, false);
2051                 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2052         }
2053
2054         if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2055                        /*
2056                         * Send power command on every beacon change,
2057                         * because we may have not enabled beacon abort yet.
2058                         */
2059                        BSS_CHANGED_BEACON_INFO)) {
2060                 ret = iwl_mvm_power_update_mac(mvm);
2061                 if (ret)
2062                         IWL_ERR(mvm, "failed to update power mode\n");
2063         }
2064
2065         if (changes & BSS_CHANGED_TXPOWER) {
2066                 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2067                                 bss_conf->txpower);
2068                 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2069         }
2070
2071         if (changes & BSS_CHANGED_CQM) {
2072                 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
2073                 /* reset cqm events tracking */
2074                 mvmvif->bf_data.last_cqm_event = 0;
2075                 if (mvmvif->bf_data.bf_enabled) {
2076                         ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2077                         if (ret)
2078                                 IWL_ERR(mvm,
2079                                         "failed to update CQM thresholds\n");
2080                 }
2081         }
2082
2083         if (changes & BSS_CHANGED_ARP_FILTER) {
2084                 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2085                 iwl_mvm_configure_bcast_filter(mvm);
2086         }
2087 }
2088
2089 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2090                                  struct ieee80211_vif *vif)
2091 {
2092         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2093         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2094         int ret;
2095
2096         /*
2097          * iwl_mvm_mac_ctxt_add() might read directly from the device
2098          * (the system time), so make sure it is available.
2099          */
2100         ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2101         if (ret)
2102                 return ret;
2103
2104         mutex_lock(&mvm->mutex);
2105
2106         /* Send the beacon template */
2107         ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2108         if (ret)
2109                 goto out_unlock;
2110
2111         /*
2112          * Re-calculate the tsf id, as the master-slave relations depend on the
2113          * beacon interval, which was not known when the AP interface was added.
2114          */
2115         if (vif->type == NL80211_IFTYPE_AP)
2116                 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2117
2118         mvmvif->ap_assoc_sta_count = 0;
2119
2120         /* Add the mac context */
2121         ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2122         if (ret)
2123                 goto out_unlock;
2124
2125         /* Perform the binding */
2126         ret = iwl_mvm_binding_add_vif(mvm, vif);
2127         if (ret)
2128                 goto out_remove;
2129
2130         ret = iwl_mvm_add_mcast_sta(mvm, vif);
2131         if (ret)
2132                 goto out_unbind;
2133
2134         /* Send the bcast station. At this stage the TBTT and DTIM time events
2135          * are added and applied to the scheduler */
2136         ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2137         if (ret)
2138                 goto out_rm_mcast;
2139
2140         /* must be set before quota calculations */
2141         mvmvif->ap_ibss_active = true;
2142
2143         /* power updated needs to be done before quotas */
2144         iwl_mvm_power_update_mac(mvm);
2145
2146         ret = iwl_mvm_update_quotas(mvm, false, NULL);
2147         if (ret)
2148                 goto out_quota_failed;
2149
2150         /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2151         if (vif->p2p && mvm->p2p_device_vif)
2152                 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2153
2154         iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2155
2156         iwl_mvm_bt_coex_vif_change(mvm);
2157
2158         /* we don't support TDLS during DCM */
2159         if (iwl_mvm_phy_ctx_count(mvm) > 1)
2160                 iwl_mvm_teardown_tdls_peers(mvm);
2161
2162         goto out_unlock;
2163
2164 out_quota_failed:
2165         iwl_mvm_power_update_mac(mvm);
2166         mvmvif->ap_ibss_active = false;
2167         iwl_mvm_send_rm_bcast_sta(mvm, vif);
2168 out_rm_mcast:
2169         iwl_mvm_rm_mcast_sta(mvm, vif);
2170 out_unbind:
2171         iwl_mvm_binding_remove_vif(mvm, vif);
2172 out_remove:
2173         iwl_mvm_mac_ctxt_remove(mvm, vif);
2174 out_unlock:
2175         mutex_unlock(&mvm->mutex);
2176         iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
2177         return ret;
2178 }
2179
2180 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2181                                  struct ieee80211_vif *vif)
2182 {
2183         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2184         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2185
2186         iwl_mvm_prepare_mac_removal(mvm, vif);
2187
2188         mutex_lock(&mvm->mutex);
2189
2190         /* Handle AP stop while in CSA */
2191         if (rcu_access_pointer(mvm->csa_vif) == vif) {
2192                 iwl_mvm_remove_time_event(mvm, mvmvif,
2193                                           &mvmvif->time_event_data);
2194                 RCU_INIT_POINTER(mvm->csa_vif, NULL);
2195                 mvmvif->csa_countdown = false;
2196         }
2197
2198         if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2199                 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2200                 mvm->csa_tx_block_bcn_timeout = 0;
2201         }
2202
2203         mvmvif->ap_ibss_active = false;
2204         mvm->ap_last_beacon_gp2 = 0;
2205
2206         iwl_mvm_bt_coex_vif_change(mvm);
2207
2208         iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2209
2210         /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2211         if (vif->p2p && mvm->p2p_device_vif)
2212                 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2213
2214         iwl_mvm_update_quotas(mvm, false, NULL);
2215
2216         /*
2217          * This is not very nice, but the simplest:
2218          * For older FWs removing the mcast sta before the bcast station may
2219          * cause assert 0x2b00.
2220          * This is fixed in later FW (which will stop beaconing when removing
2221          * bcast station).
2222          * So make the order of removal depend on the TLV
2223          */
2224         if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2225                 iwl_mvm_rm_mcast_sta(mvm, vif);
2226         iwl_mvm_send_rm_bcast_sta(mvm, vif);
2227         if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2228                 iwl_mvm_rm_mcast_sta(mvm, vif);
2229         iwl_mvm_binding_remove_vif(mvm, vif);
2230
2231         iwl_mvm_power_update_mac(mvm);
2232
2233         iwl_mvm_mac_ctxt_remove(mvm, vif);
2234
2235         mutex_unlock(&mvm->mutex);
2236 }
2237
2238 static void
2239 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2240                                  struct ieee80211_vif *vif,
2241                                  struct ieee80211_bss_conf *bss_conf,
2242                                  u32 changes)
2243 {
2244         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2245
2246         /* Changes will be applied when the AP/IBSS is started */
2247         if (!mvmvif->ap_ibss_active)
2248                 return;
2249
2250         if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
2251                        BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
2252             iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
2253                 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2254
2255         /* Need to send a new beacon template to the FW */
2256         if (changes & BSS_CHANGED_BEACON &&
2257             iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2258                 IWL_WARN(mvm, "Failed updating beacon data\n");
2259
2260         if (changes & BSS_CHANGED_TXPOWER) {
2261                 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2262                                 bss_conf->txpower);
2263                 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2264         }
2265 }
2266
2267 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2268                                      struct ieee80211_vif *vif,
2269                                      struct ieee80211_bss_conf *bss_conf,
2270                                      u32 changes)
2271 {
2272         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2273
2274         /*
2275          * iwl_mvm_bss_info_changed_station() might call
2276          * iwl_mvm_protect_session(), which reads directly from
2277          * the device (the system time), so make sure it is available.
2278          */
2279         if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2280                 return;
2281
2282         mutex_lock(&mvm->mutex);
2283
2284         if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
2285                 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
2286
2287         switch (vif->type) {
2288         case NL80211_IFTYPE_STATION:
2289                 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2290                 break;
2291         case NL80211_IFTYPE_AP:
2292         case NL80211_IFTYPE_ADHOC:
2293                 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
2294                 break;
2295         case NL80211_IFTYPE_MONITOR:
2296                 if (changes & BSS_CHANGED_MU_GROUPS)
2297                         iwl_mvm_update_mu_groups(mvm, vif);
2298                 break;
2299         default:
2300                 /* shouldn't happen */
2301                 WARN_ON_ONCE(1);
2302         }
2303
2304         mutex_unlock(&mvm->mutex);
2305         iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
2306 }
2307
2308 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2309                                struct ieee80211_vif *vif,
2310                                struct ieee80211_scan_request *hw_req)
2311 {
2312         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2313         int ret;
2314
2315         if (hw_req->req.n_channels == 0 ||
2316             hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
2317                 return -EINVAL;
2318
2319         mutex_lock(&mvm->mutex);
2320         ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
2321         mutex_unlock(&mvm->mutex);
2322
2323         return ret;
2324 }
2325
2326 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2327                                        struct ieee80211_vif *vif)
2328 {
2329         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2330
2331         mutex_lock(&mvm->mutex);
2332
2333         /* Due to a race condition, it's possible that mac80211 asks
2334          * us to stop a hw_scan when it's already stopped.  This can
2335          * happen, for instance, if we stopped the scan ourselves,
2336          * called ieee80211_scan_completed() and the userspace called
2337          * cancel scan scan before ieee80211_scan_work() could run.
2338          * To handle that, simply return if the scan is not running.
2339         */
2340         if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
2341                 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
2342
2343         mutex_unlock(&mvm->mutex);
2344 }
2345
2346 static void
2347 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
2348                                   struct ieee80211_sta *sta, u16 tids,
2349                                   int num_frames,
2350                                   enum ieee80211_frame_release_type reason,
2351                                   bool more_data)
2352 {
2353         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2354
2355         /* Called when we need to transmit (a) frame(s) from mac80211 */
2356
2357         iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2358                                           tids, more_data, false);
2359 }
2360
2361 static void
2362 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2363                                     struct ieee80211_sta *sta, u16 tids,
2364                                     int num_frames,
2365                                     enum ieee80211_frame_release_type reason,
2366                                     bool more_data)
2367 {
2368         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2369
2370         /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
2371
2372         iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2373                                           tids, more_data, true);
2374 }
2375
2376 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2377                                      enum sta_notify_cmd cmd,
2378                                      struct ieee80211_sta *sta)
2379 {
2380         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2381         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2382         unsigned long txqs = 0, tids = 0;
2383         int tid;
2384
2385         /*
2386          * If we have TVQM then we get too high queue numbers - luckily
2387          * we really shouldn't get here with that because such hardware
2388          * should have firmware supporting buffer station offload.
2389          */
2390         if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
2391                 return;
2392
2393         spin_lock_bh(&mvmsta->lock);
2394         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2395                 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2396
2397                 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
2398                         continue;
2399
2400                 __set_bit(tid_data->txq_id, &txqs);
2401
2402                 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
2403                         continue;
2404
2405                 __set_bit(tid, &tids);
2406         }
2407
2408         switch (cmd) {
2409         case STA_NOTIFY_SLEEP:
2410                 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
2411                         ieee80211_sta_set_buffered(sta, tid, true);
2412
2413                 if (txqs)
2414                         iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
2415                 /*
2416                  * The fw updates the STA to be asleep. Tx packets on the Tx
2417                  * queues to this station will not be transmitted. The fw will
2418                  * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2419                  */
2420                 break;
2421         case STA_NOTIFY_AWAKE:
2422                 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA))
2423                         break;
2424
2425                 if (txqs)
2426                         iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
2427                 iwl_mvm_sta_modify_ps_wake(mvm, sta);
2428                 break;
2429         default:
2430                 break;
2431         }
2432         spin_unlock_bh(&mvmsta->lock);
2433 }
2434
2435 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2436                                    struct ieee80211_vif *vif,
2437                                    enum sta_notify_cmd cmd,
2438                                    struct ieee80211_sta *sta)
2439 {
2440         __iwl_mvm_mac_sta_notify(hw, cmd, sta);
2441 }
2442
2443 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
2444 {
2445         struct iwl_rx_packet *pkt = rxb_addr(rxb);
2446         struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
2447         struct ieee80211_sta *sta;
2448         struct iwl_mvm_sta *mvmsta;
2449         bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
2450
2451         if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)))
2452                 return;
2453
2454         rcu_read_lock();
2455         sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
2456         if (WARN_ON(IS_ERR_OR_NULL(sta))) {
2457                 rcu_read_unlock();
2458                 return;
2459         }
2460
2461         mvmsta = iwl_mvm_sta_from_mac80211(sta);
2462
2463         if (!mvmsta->vif ||
2464             mvmsta->vif->type != NL80211_IFTYPE_AP) {
2465                 rcu_read_unlock();
2466                 return;
2467         }
2468
2469         if (mvmsta->sleeping != sleeping) {
2470                 mvmsta->sleeping = sleeping;
2471                 __iwl_mvm_mac_sta_notify(mvm->hw,
2472                         sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
2473                         sta);
2474                 ieee80211_sta_ps_transition(sta, sleeping);
2475         }
2476
2477         if (sleeping) {
2478                 switch (notif->type) {
2479                 case IWL_MVM_PM_EVENT_AWAKE:
2480                 case IWL_MVM_PM_EVENT_ASLEEP:
2481                         break;
2482                 case IWL_MVM_PM_EVENT_UAPSD:
2483                         ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
2484                         break;
2485                 case IWL_MVM_PM_EVENT_PS_POLL:
2486                         ieee80211_sta_pspoll(sta);
2487                         break;
2488                 default:
2489                         break;
2490                 }
2491         }
2492
2493         rcu_read_unlock();
2494 }
2495
2496 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2497                                        struct ieee80211_vif *vif,
2498                                        struct ieee80211_sta *sta)
2499 {
2500         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2501         struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2502
2503         /*
2504          * This is called before mac80211 does RCU synchronisation,
2505          * so here we already invalidate our internal RCU-protected
2506          * station pointer. The rest of the code will thus no longer
2507          * be able to find the station this way, and we don't rely
2508          * on further RCU synchronisation after the sta_state()
2509          * callback deleted the station.
2510          */
2511         mutex_lock(&mvm->mutex);
2512         if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2513                 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2514                                    ERR_PTR(-ENOENT));
2515
2516         mutex_unlock(&mvm->mutex);
2517 }
2518
2519 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2520                                 const u8 *bssid)
2521 {
2522         if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2523                 return;
2524
2525         if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
2526                 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2527                 return;
2528         }
2529
2530         if (!vif->p2p &&
2531             (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
2532                 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2533                 return;
2534         }
2535
2536         vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2537 }
2538
2539 static void
2540 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2541                            struct ieee80211_vif *vif, u8 *peer_addr,
2542                            enum nl80211_tdls_operation action)
2543 {
2544         struct iwl_fw_dbg_trigger_tlv *trig;
2545         struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2546
2547         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2548                 return;
2549
2550         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2551         tdls_trig = (void *)trig->data;
2552         if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
2553                                            ieee80211_vif_to_wdev(vif), trig))
2554                 return;
2555
2556         if (!(tdls_trig->action_bitmap & BIT(action)))
2557                 return;
2558
2559         if (tdls_trig->peer_mode &&
2560             memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2561                 return;
2562
2563         iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2564                                 "TDLS event occurred, peer %pM, action %d",
2565                                 peer_addr, action);
2566 }
2567
2568 static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
2569                                              struct iwl_mvm_sta *mvm_sta)
2570 {
2571         struct iwl_mvm_tid_data *tid_data;
2572         struct sk_buff *skb;
2573         int i;
2574
2575         spin_lock_bh(&mvm_sta->lock);
2576         for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
2577                 tid_data = &mvm_sta->tid_data[i];
2578
2579                 while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) {
2580                         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2581
2582                         /*
2583                          * The first deferred frame should've stopped the MAC
2584                          * queues, so we should never get a second deferred
2585                          * frame for the RA/TID.
2586                          */
2587                         iwl_mvm_start_mac_queues(mvm, BIT(info->hw_queue));
2588                         ieee80211_free_txskb(mvm->hw, skb);
2589                 }
2590         }
2591         spin_unlock_bh(&mvm_sta->lock);
2592 }
2593
2594 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2595                                  struct ieee80211_vif *vif,
2596                                  struct ieee80211_sta *sta,
2597                                  enum ieee80211_sta_state old_state,
2598                                  enum ieee80211_sta_state new_state)
2599 {
2600         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2601         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2602         struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2603         int ret;
2604
2605         IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2606                            sta->addr, old_state, new_state);
2607
2608         /* this would be a mac80211 bug ... but don't crash */
2609         if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2610                 return -EINVAL;
2611
2612         /*
2613          * If we are in a STA removal flow and in DQA mode:
2614          *
2615          * This is after the sync_rcu part, so the queues have already been
2616          * flushed. No more TXs on their way in mac80211's path, and no more in
2617          * the queues.
2618          * Also, we won't be getting any new TX frames for this station.
2619          * What we might have are deferred TX frames that need to be taken care
2620          * of.
2621          *
2622          * Drop any still-queued deferred-frame before removing the STA, and
2623          * make sure the worker is no longer handling frames for this STA.
2624          */
2625         if (old_state == IEEE80211_STA_NONE &&
2626             new_state == IEEE80211_STA_NOTEXIST) {
2627                 iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta);
2628                 flush_work(&mvm->add_stream_wk);
2629
2630                 /*
2631                  * No need to make sure deferred TX indication is off since the
2632                  * worker will already remove it if it was on
2633                  */
2634         }
2635
2636         mutex_lock(&mvm->mutex);
2637         /* track whether or not the station is associated */
2638         mvm_sta->associated = new_state >= IEEE80211_STA_ASSOC;
2639
2640         if (old_state == IEEE80211_STA_NOTEXIST &&
2641             new_state == IEEE80211_STA_NONE) {
2642                 /*
2643                  * Firmware bug - it'll crash if the beacon interval is less
2644                  * than 16. We can't avoid connecting at all, so refuse the
2645                  * station state change, this will cause mac80211 to abandon
2646                  * attempts to connect to this AP, and eventually wpa_s will
2647                  * blacklist the AP...
2648                  */
2649                 if (vif->type == NL80211_IFTYPE_STATION &&
2650                     vif->bss_conf.beacon_int < 16) {
2651                         IWL_ERR(mvm,
2652                                 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2653                                 sta->addr, vif->bss_conf.beacon_int);
2654                         ret = -EINVAL;
2655                         goto out_unlock;
2656                 }
2657
2658                 if (sta->tdls &&
2659                     (vif->p2p ||
2660                      iwl_mvm_tdls_sta_count(mvm, NULL) ==
2661                                                 IWL_MVM_TDLS_STA_COUNT ||
2662                      iwl_mvm_phy_ctx_count(mvm) > 1)) {
2663                         IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2664                         ret = -EBUSY;
2665                         goto out_unlock;
2666                 }
2667
2668                 ret = iwl_mvm_add_sta(mvm, vif, sta);
2669                 if (sta->tdls && ret == 0) {
2670                         iwl_mvm_recalc_tdls_state(mvm, vif, true);
2671                         iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2672                                                    NL80211_TDLS_SETUP);
2673                 }
2674         } else if (old_state == IEEE80211_STA_NONE &&
2675                    new_state == IEEE80211_STA_AUTH) {
2676                 /*
2677                  * EBS may be disabled due to previous failures reported by FW.
2678                  * Reset EBS status here assuming environment has been changed.
2679                  */
2680                 mvm->last_ebs_successful = true;
2681                 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
2682                 ret = 0;
2683         } else if (old_state == IEEE80211_STA_AUTH &&
2684                    new_state == IEEE80211_STA_ASSOC) {
2685                 if (vif->type == NL80211_IFTYPE_AP) {
2686                         mvmvif->ap_assoc_sta_count++;
2687                         iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2688                 }
2689
2690                 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
2691                                      true);
2692                 ret = iwl_mvm_update_sta(mvm, vif, sta);
2693         } else if (old_state == IEEE80211_STA_ASSOC &&
2694                    new_state == IEEE80211_STA_AUTHORIZED) {
2695
2696                 /* we don't support TDLS during DCM */
2697                 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2698                         iwl_mvm_teardown_tdls_peers(mvm);
2699
2700                 if (sta->tdls)
2701                         iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2702                                                    NL80211_TDLS_ENABLE_LINK);
2703
2704                 /* enable beacon filtering */
2705                 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2706                 ret = 0;
2707         } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2708                    new_state == IEEE80211_STA_ASSOC) {
2709                 /* disable beacon filtering */
2710                 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
2711                 ret = 0;
2712         } else if (old_state == IEEE80211_STA_ASSOC &&
2713                    new_state == IEEE80211_STA_AUTH) {
2714                 if (vif->type == NL80211_IFTYPE_AP) {
2715                         mvmvif->ap_assoc_sta_count--;
2716                         iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2717                 }
2718                 ret = 0;
2719         } else if (old_state == IEEE80211_STA_AUTH &&
2720                    new_state == IEEE80211_STA_NONE) {
2721                 ret = 0;
2722         } else if (old_state == IEEE80211_STA_NONE &&
2723                    new_state == IEEE80211_STA_NOTEXIST) {
2724                 ret = iwl_mvm_rm_sta(mvm, vif, sta);
2725                 if (sta->tdls) {
2726                         iwl_mvm_recalc_tdls_state(mvm, vif, false);
2727                         iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2728                                                    NL80211_TDLS_DISABLE_LINK);
2729                 }
2730         } else {
2731                 ret = -EIO;
2732         }
2733  out_unlock:
2734         mutex_unlock(&mvm->mutex);
2735
2736         if (sta->tdls && ret == 0) {
2737                 if (old_state == IEEE80211_STA_NOTEXIST &&
2738                     new_state == IEEE80211_STA_NONE)
2739                         ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2740                 else if (old_state == IEEE80211_STA_NONE &&
2741                          new_state == IEEE80211_STA_NOTEXIST)
2742                         ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2743         }
2744
2745         return ret;
2746 }
2747
2748 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2749 {
2750         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2751
2752         mvm->rts_threshold = value;
2753
2754         return 0;
2755 }
2756
2757 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2758                                   struct ieee80211_vif *vif,
2759                                   struct ieee80211_sta *sta, u32 changed)
2760 {
2761         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2762
2763         if (vif->type == NL80211_IFTYPE_STATION &&
2764             changed & IEEE80211_RC_NSS_CHANGED)
2765                 iwl_mvm_sf_update(mvm, vif, false);
2766 }
2767
2768 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2769                                struct ieee80211_vif *vif, u16 ac,
2770                                const struct ieee80211_tx_queue_params *params)
2771 {
2772         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2773         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2774
2775         mvmvif->queue_params[ac] = *params;
2776
2777         /*
2778          * No need to update right away, we'll get BSS_CHANGED_QOS
2779          * The exception is P2P_DEVICE interface which needs immediate update.
2780          */
2781         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2782                 int ret;
2783
2784                 mutex_lock(&mvm->mutex);
2785                 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2786                 mutex_unlock(&mvm->mutex);
2787                 return ret;
2788         }
2789         return 0;
2790 }
2791
2792 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2793                                       struct ieee80211_vif *vif)
2794 {
2795         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2796         u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2797         u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
2798
2799         if (WARN_ON_ONCE(vif->bss_conf.assoc))
2800                 return;
2801
2802         /*
2803          * iwl_mvm_protect_session() reads directly from the device
2804          * (the system time), so make sure it is available.
2805          */
2806         if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2807                 return;
2808
2809         mutex_lock(&mvm->mutex);
2810         /* Try really hard to protect the session and hear a beacon */
2811         iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
2812         mutex_unlock(&mvm->mutex);
2813
2814         iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
2815 }
2816
2817 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2818                                         struct ieee80211_vif *vif,
2819                                         struct cfg80211_sched_scan_request *req,
2820                                         struct ieee80211_scan_ies *ies)
2821 {
2822         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2823
2824         int ret;
2825
2826         mutex_lock(&mvm->mutex);
2827
2828         if (!vif->bss_conf.idle) {
2829                 ret = -EBUSY;
2830                 goto out;
2831         }
2832
2833         ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
2834
2835 out:
2836         mutex_unlock(&mvm->mutex);
2837         return ret;
2838 }
2839
2840 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2841                                        struct ieee80211_vif *vif)
2842 {
2843         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2844         int ret;
2845
2846         mutex_lock(&mvm->mutex);
2847
2848         /* Due to a race condition, it's possible that mac80211 asks
2849          * us to stop a sched_scan when it's already stopped.  This
2850          * can happen, for instance, if we stopped the scan ourselves,
2851          * called ieee80211_sched_scan_stopped() and the userspace called
2852          * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2853          * could run.  To handle this, simply return if the scan is
2854          * not running.
2855         */
2856         if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
2857                 mutex_unlock(&mvm->mutex);
2858                 return 0;
2859         }
2860
2861         ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
2862         mutex_unlock(&mvm->mutex);
2863         iwl_mvm_wait_for_async_handlers(mvm);
2864
2865         return ret;
2866 }
2867
2868 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2869                                enum set_key_cmd cmd,
2870                                struct ieee80211_vif *vif,
2871                                struct ieee80211_sta *sta,
2872                                struct ieee80211_key_conf *key)
2873 {
2874         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2875         struct iwl_mvm_sta *mvmsta;
2876         struct iwl_mvm_key_pn *ptk_pn;
2877         int keyidx = key->keyidx;
2878         int ret;
2879         u8 key_offset;
2880
2881         if (iwlwifi_mod_params.swcrypto) {
2882                 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2883                 return -EOPNOTSUPP;
2884         }
2885
2886         switch (key->cipher) {
2887         case WLAN_CIPHER_SUITE_TKIP:
2888                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2889                 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2890                 break;
2891         case WLAN_CIPHER_SUITE_CCMP:
2892         case WLAN_CIPHER_SUITE_GCMP:
2893         case WLAN_CIPHER_SUITE_GCMP_256:
2894                 if (!iwl_mvm_has_new_tx_api(mvm))
2895                         key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2896                 break;
2897         case WLAN_CIPHER_SUITE_AES_CMAC:
2898         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2899         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2900                 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
2901                 break;
2902         case WLAN_CIPHER_SUITE_WEP40:
2903         case WLAN_CIPHER_SUITE_WEP104:
2904                 /* For non-client mode, only use WEP keys for TX as we probably
2905                  * don't have a station yet anyway and would then have to keep
2906                  * track of the keys, linking them to each of the clients/peers
2907                  * as they appear. For now, don't do that, for performance WEP
2908                  * offload doesn't really matter much, but we need it for some
2909                  * other offload features in client mode.
2910                  */
2911                 if (vif->type != NL80211_IFTYPE_STATION)
2912                         return 0;
2913                 break;
2914         default:
2915                 /* currently FW supports only one optional cipher scheme */
2916                 if (hw->n_cipher_schemes &&
2917                     hw->cipher_schemes->cipher == key->cipher)
2918                         key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2919                 else
2920                         return -EOPNOTSUPP;
2921         }
2922
2923         mutex_lock(&mvm->mutex);
2924
2925         switch (cmd) {
2926         case SET_KEY:
2927                 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2928                      vif->type == NL80211_IFTYPE_AP) && !sta) {
2929                         /*
2930                          * GTK on AP interface is a TX-only key, return 0;
2931                          * on IBSS they're per-station and because we're lazy
2932                          * we don't support them for RX, so do the same.
2933                          * CMAC/GMAC in AP/IBSS modes must be done in software.
2934                          */
2935                         if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
2936                             key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
2937                             key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
2938                                 ret = -EOPNOTSUPP;
2939                         else
2940                                 ret = 0;
2941
2942                         if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
2943                             key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
2944                             !iwl_mvm_has_new_tx_api(mvm)) {
2945                                 key->hw_key_idx = STA_KEY_IDX_INVALID;
2946                                 break;
2947                         }
2948                 }
2949
2950                 /* During FW restart, in order to restore the state as it was,
2951                  * don't try to reprogram keys we previously failed for.
2952                  */
2953                 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2954                     key->hw_key_idx == STA_KEY_IDX_INVALID) {
2955                         IWL_DEBUG_MAC80211(mvm,
2956                                            "skip invalid idx key programming during restart\n");
2957                         ret = 0;
2958                         break;
2959                 }
2960
2961                 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2962                     sta && iwl_mvm_has_new_rx_api(mvm) &&
2963                     key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2964                     (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2965                      key->cipher == WLAN_CIPHER_SUITE_GCMP ||
2966                      key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
2967                         struct ieee80211_key_seq seq;
2968                         int tid, q;
2969
2970                         mvmsta = iwl_mvm_sta_from_mac80211(sta);
2971                         WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
2972                         ptk_pn = kzalloc(sizeof(*ptk_pn) +
2973                                          mvm->trans->num_rx_queues *
2974                                                 sizeof(ptk_pn->q[0]),
2975                                          GFP_KERNEL);
2976                         if (!ptk_pn) {
2977                                 ret = -ENOMEM;
2978                                 break;
2979                         }
2980
2981                         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2982                                 ieee80211_get_key_rx_seq(key, tid, &seq);
2983                                 for (q = 0; q < mvm->trans->num_rx_queues; q++)
2984                                         memcpy(ptk_pn->q[q].pn[tid],
2985                                                seq.ccmp.pn,
2986                                                IEEE80211_CCMP_PN_LEN);
2987                         }
2988
2989                         rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
2990                 }
2991
2992                 /* in HW restart reuse the index, otherwise request a new one */
2993                 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
2994                         key_offset = key->hw_key_idx;
2995                 else
2996                         key_offset = STA_KEY_IDX_INVALID;
2997
2998                 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2999                 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
3000                 if (ret) {
3001                         IWL_WARN(mvm, "set key failed\n");
3002                         /*
3003                          * can't add key for RX, but we don't need it
3004                          * in the device for TX so still return 0
3005                          */
3006                         key->hw_key_idx = STA_KEY_IDX_INVALID;
3007                         ret = 0;
3008                 }
3009
3010                 break;
3011         case DISABLE_KEY:
3012                 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
3013                         ret = 0;
3014                         break;
3015                 }
3016
3017                 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
3018                     key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
3019                     (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
3020                      key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3021                      key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
3022                         mvmsta = iwl_mvm_sta_from_mac80211(sta);
3023                         ptk_pn = rcu_dereference_protected(
3024                                                 mvmsta->ptk_pn[keyidx],
3025                                                 lockdep_is_held(&mvm->mutex));
3026                         RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
3027                         if (ptk_pn)
3028                                 kfree_rcu(ptk_pn, rcu_head);
3029                 }
3030
3031                 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
3032                 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
3033                 break;
3034         default:
3035                 ret = -EINVAL;
3036         }
3037
3038         mutex_unlock(&mvm->mutex);
3039         return ret;
3040 }
3041
3042 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
3043                                         struct ieee80211_vif *vif,
3044                                         struct ieee80211_key_conf *keyconf,
3045                                         struct ieee80211_sta *sta,
3046                                         u32 iv32, u16 *phase1key)
3047 {
3048         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3049
3050         if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
3051                 return;
3052
3053         iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
3054 }
3055
3056
3057 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
3058                                struct iwl_rx_packet *pkt, void *data)
3059 {
3060         struct iwl_mvm *mvm =
3061                 container_of(notif_wait, struct iwl_mvm, notif_wait);
3062         struct iwl_hs20_roc_res *resp;
3063         int resp_len = iwl_rx_packet_payload_len(pkt);
3064         struct iwl_mvm_time_event_data *te_data = data;
3065
3066         if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3067                 return true;
3068
3069         if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3070                 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3071                 return true;
3072         }
3073
3074         resp = (void *)pkt->data;
3075
3076         IWL_DEBUG_TE(mvm,
3077                      "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3078                      resp->status, resp->event_unique_id);
3079
3080         te_data->uid = le32_to_cpu(resp->event_unique_id);
3081         IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3082                      te_data->uid);
3083
3084         spin_lock_bh(&mvm->time_event_lock);
3085         list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3086         spin_unlock_bh(&mvm->time_event_lock);
3087
3088         return true;
3089 }
3090
3091 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
3092 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
3093 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
3094 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
3095 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
3096 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3097                                     struct ieee80211_channel *channel,
3098                                     struct ieee80211_vif *vif,
3099                                     int duration)
3100 {
3101         int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3102         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3103         struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
3104         static const u16 time_event_response[] = { HOT_SPOT_CMD };
3105         struct iwl_notification_wait wait_time_event;
3106         u32 dtim_interval = vif->bss_conf.dtim_period *
3107                 vif->bss_conf.beacon_int;
3108         u32 req_dur, delay;
3109         struct iwl_hs20_roc_req aux_roc_req = {
3110                 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3111                 .id_and_color =
3112                         cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3113                 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3114                 /* Set the channel info data */
3115                 .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ?
3116                         PHY_BAND_24 : PHY_BAND_5,
3117                 .channel_info.channel = channel->hw_value,
3118                 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3119                 /* Set the time and duration */
3120                 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
3121          };
3122
3123         delay = AUX_ROC_MIN_DELAY;
3124         req_dur = MSEC_TO_TU(duration);
3125
3126         /*
3127          * If we are associated we want the delay time to be at least one
3128          * dtim interval so that the FW can wait until after the DTIM and
3129          * then start the time event, this will potentially allow us to
3130          * remain off-channel for the max duration.
3131          * Since we want to use almost a whole dtim interval we would also
3132          * like the delay to be for 2-3 dtim intervals, in case there are
3133          * other time events with higher priority.
3134          */
3135         if (vif->bss_conf.assoc) {
3136                 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
3137                 /* We cannot remain off-channel longer than the DTIM interval */
3138                 if (dtim_interval <= req_dur) {
3139                         req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
3140                         if (req_dur <= AUX_ROC_MIN_DURATION)
3141                                 req_dur = dtim_interval -
3142                                         AUX_ROC_MIN_SAFETY_BUFFER;
3143                 }
3144         }
3145
3146         aux_roc_req.duration = cpu_to_le32(req_dur);
3147         aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
3148
3149         IWL_DEBUG_TE(mvm,
3150                      "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3151                      channel->hw_value, req_dur, duration, delay,
3152                      dtim_interval);
3153         /* Set the node address */
3154         memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3155
3156         lockdep_assert_held(&mvm->mutex);
3157
3158         spin_lock_bh(&mvm->time_event_lock);
3159
3160         if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3161                 spin_unlock_bh(&mvm->time_event_lock);
3162                 return -EIO;
3163         }
3164
3165         te_data->vif = vif;
3166         te_data->duration = duration;
3167         te_data->id = HOT_SPOT_CMD;
3168
3169         spin_unlock_bh(&mvm->time_event_lock);
3170
3171         /*
3172          * Use a notification wait, which really just processes the
3173          * command response and doesn't wait for anything, in order
3174          * to be able to process the response and get the UID inside
3175          * the RX path. Using CMD_WANT_SKB doesn't work because it
3176          * stores the buffer and then wakes up this thread, by which
3177          * time another notification (that the time event started)
3178          * might already be processed unsuccessfully.
3179          */
3180         iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3181                                    time_event_response,
3182                                    ARRAY_SIZE(time_event_response),
3183                                    iwl_mvm_rx_aux_roc, te_data);
3184
3185         res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3186                                    &aux_roc_req);
3187
3188         if (res) {
3189                 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3190                 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3191                 goto out_clear_te;
3192         }
3193
3194         /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3195         res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3196         /* should never fail */
3197         WARN_ON_ONCE(res);
3198
3199         if (res) {
3200  out_clear_te:
3201                 spin_lock_bh(&mvm->time_event_lock);
3202                 iwl_mvm_te_clear_data(mvm, te_data);
3203                 spin_unlock_bh(&mvm->time_event_lock);
3204         }
3205
3206         return res;
3207 }
3208
3209 static int iwl_mvm_roc(struct ieee80211_hw *hw,
3210                        struct ieee80211_vif *vif,
3211                        struct ieee80211_channel *channel,
3212                        int duration,
3213                        enum ieee80211_roc_type type)
3214 {
3215         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3216         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3217         struct cfg80211_chan_def chandef;
3218         struct iwl_mvm_phy_ctxt *phy_ctxt;
3219         int ret, i;
3220
3221         IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3222                            duration, type);
3223
3224         flush_work(&mvm->roc_done_wk);
3225
3226         mutex_lock(&mvm->mutex);
3227
3228         switch (vif->type) {
3229         case NL80211_IFTYPE_STATION:
3230                 if (fw_has_capa(&mvm->fw->ucode_capa,
3231                                 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
3232                         /* Use aux roc framework (HS20) */
3233                         ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3234                                                        vif, duration);
3235                         goto out_unlock;
3236                 }
3237                 IWL_ERR(mvm, "hotspot not supported\n");
3238                 ret = -EINVAL;
3239                 goto out_unlock;
3240         case NL80211_IFTYPE_P2P_DEVICE:
3241                 /* handle below */
3242                 break;
3243         default:
3244                 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
3245                 ret = -EINVAL;
3246                 goto out_unlock;
3247         }
3248
3249         for (i = 0; i < NUM_PHY_CTX; i++) {
3250                 phy_ctxt = &mvm->phy_ctxts[i];
3251                 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3252                         continue;
3253
3254                 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3255                         /*
3256                          * Unbind the P2P_DEVICE from the current PHY context,
3257                          * and if the PHY context is not used remove it.
3258                          */
3259                         ret = iwl_mvm_binding_remove_vif(mvm, vif);
3260                         if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3261                                 goto out_unlock;
3262
3263                         iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3264
3265                         /* Bind the P2P_DEVICE to the current PHY Context */
3266                         mvmvif->phy_ctxt = phy_ctxt;
3267
3268                         ret = iwl_mvm_binding_add_vif(mvm, vif);
3269                         if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3270                                 goto out_unlock;
3271
3272                         iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3273                         goto schedule_time_event;
3274                 }
3275         }
3276
3277         /* Need to update the PHY context only if the ROC channel changed */
3278         if (channel == mvmvif->phy_ctxt->channel)
3279                 goto schedule_time_event;
3280
3281         cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
3282
3283         /*
3284          * Change the PHY context configuration as it is currently referenced
3285          * only by the P2P Device MAC
3286          */
3287         if (mvmvif->phy_ctxt->ref == 1) {
3288                 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3289                                                &chandef, 1, 1);
3290                 if (ret)
3291                         goto out_unlock;
3292         } else {
3293                 /*
3294                  * The PHY context is shared with other MACs. Need to remove the
3295                  * P2P Device from the binding, allocate an new PHY context and
3296                  * create a new binding
3297                  */
3298                 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3299                 if (!phy_ctxt) {
3300                         ret = -ENOSPC;
3301                         goto out_unlock;
3302                 }
3303
3304                 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3305                                                1, 1);
3306                 if (ret) {
3307                         IWL_ERR(mvm, "Failed to change PHY context\n");
3308                         goto out_unlock;
3309                 }
3310
3311                 /* Unbind the P2P_DEVICE from the current PHY context */
3312                 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3313                 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3314                         goto out_unlock;
3315
3316                 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3317
3318                 /* Bind the P2P_DEVICE to the new allocated PHY context */
3319                 mvmvif->phy_ctxt = phy_ctxt;
3320
3321                 ret = iwl_mvm_binding_add_vif(mvm, vif);
3322                 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3323                         goto out_unlock;
3324
3325                 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3326         }
3327
3328 schedule_time_event:
3329         /* Schedule the time events */
3330         ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
3331
3332 out_unlock:
3333         mutex_unlock(&mvm->mutex);
3334         IWL_DEBUG_MAC80211(mvm, "leave\n");
3335         return ret;
3336 }
3337
3338 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3339 {
3340         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3341
3342         IWL_DEBUG_MAC80211(mvm, "enter\n");
3343
3344         mutex_lock(&mvm->mutex);
3345         iwl_mvm_stop_roc(mvm);
3346         mutex_unlock(&mvm->mutex);
3347
3348         IWL_DEBUG_MAC80211(mvm, "leave\n");
3349         return 0;
3350 }
3351
3352 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3353                                  struct ieee80211_chanctx_conf *ctx)
3354 {
3355         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3356         struct iwl_mvm_phy_ctxt *phy_ctxt;
3357         int ret;
3358
3359         lockdep_assert_held(&mvm->mutex);
3360
3361         IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
3362
3363         phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3364         if (!phy_ctxt) {
3365                 ret = -ENOSPC;
3366                 goto out;
3367         }
3368
3369         ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
3370                                        ctx->rx_chains_static,
3371                                        ctx->rx_chains_dynamic);
3372         if (ret) {
3373                 IWL_ERR(mvm, "Failed to add PHY context\n");
3374                 goto out;
3375         }
3376
3377         iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
3378         *phy_ctxt_id = phy_ctxt->id;
3379 out:
3380         return ret;
3381 }
3382
3383 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3384                                struct ieee80211_chanctx_conf *ctx)
3385 {
3386         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3387         int ret;
3388
3389         mutex_lock(&mvm->mutex);
3390         ret = __iwl_mvm_add_chanctx(mvm, ctx);
3391         mutex_unlock(&mvm->mutex);
3392
3393         return ret;
3394 }
3395
3396 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3397                                      struct ieee80211_chanctx_conf *ctx)
3398 {
3399         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3400         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3401
3402         lockdep_assert_held(&mvm->mutex);
3403
3404         iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3405 }
3406
3407 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3408                                    struct ieee80211_chanctx_conf *ctx)
3409 {
3410         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3411
3412         mutex_lock(&mvm->mutex);
3413         __iwl_mvm_remove_chanctx(mvm, ctx);
3414         mutex_unlock(&mvm->mutex);
3415 }
3416
3417 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3418                                    struct ieee80211_chanctx_conf *ctx,
3419                                    u32 changed)
3420 {
3421         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3422         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3423         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3424
3425         if (WARN_ONCE((phy_ctxt->ref > 1) &&
3426                       (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3427                                    IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
3428                                    IEEE80211_CHANCTX_CHANGE_RADAR |
3429                                    IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
3430                       "Cannot change PHY. Ref=%d, changed=0x%X\n",
3431                       phy_ctxt->ref, changed))
3432                 return;
3433
3434         mutex_lock(&mvm->mutex);
3435         iwl_mvm_bt_coex_vif_change(mvm);
3436         iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
3437                                  ctx->rx_chains_static,
3438                                  ctx->rx_chains_dynamic);
3439         mutex_unlock(&mvm->mutex);
3440 }
3441
3442 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3443                                         struct ieee80211_vif *vif,
3444                                         struct ieee80211_chanctx_conf *ctx,
3445                                         bool switching_chanctx)
3446 {
3447         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3448         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3449         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3450         int ret;
3451
3452         lockdep_assert_held(&mvm->mutex);
3453
3454         mvmvif->phy_ctxt = phy_ctxt;
3455
3456         switch (vif->type) {
3457         case NL80211_IFTYPE_AP:
3458                 /* only needed if we're switching chanctx (i.e. during CSA) */
3459                 if (switching_chanctx) {
3460                         mvmvif->ap_ibss_active = true;
3461                         break;
3462                 }
3463         case NL80211_IFTYPE_ADHOC:
3464                 /*
3465                  * The AP binding flow is handled as part of the start_ap flow
3466                  * (in bss_info_changed), similarly for IBSS.
3467                  */
3468                 ret = 0;
3469                 goto out;
3470         case NL80211_IFTYPE_STATION:
3471                 break;
3472         case NL80211_IFTYPE_MONITOR:
3473                 /* always disable PS when a monitor interface is active */
3474                 mvmvif->ps_disabled = true;
3475                 break;
3476         default:
3477                 ret = -EINVAL;
3478                 goto out;
3479         }
3480
3481         ret = iwl_mvm_binding_add_vif(mvm, vif);
3482         if (ret)
3483                 goto out;
3484
3485         /*
3486          * Power state must be updated before quotas,
3487          * otherwise fw will complain.
3488          */
3489         iwl_mvm_power_update_mac(mvm);
3490
3491         /* Setting the quota at this stage is only required for monitor
3492          * interfaces. For the other types, the bss_info changed flow
3493          * will handle quota settings.
3494          */
3495         if (vif->type == NL80211_IFTYPE_MONITOR) {
3496                 mvmvif->monitor_active = true;
3497                 ret = iwl_mvm_update_quotas(mvm, false, NULL);
3498                 if (ret)
3499                         goto out_remove_binding;
3500
3501                 ret = iwl_mvm_add_snif_sta(mvm, vif);
3502                 if (ret)
3503                         goto out_remove_binding;
3504
3505         }
3506
3507         /* Handle binding during CSA */
3508         if (vif->type == NL80211_IFTYPE_AP) {
3509                 iwl_mvm_update_quotas(mvm, false, NULL);
3510                 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3511         }
3512
3513         if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
3514                 u32 duration = 2 * vif->bss_conf.beacon_int;
3515
3516                 /* iwl_mvm_protect_session() reads directly from the
3517                  * device (the system time), so make sure it is
3518                  * available.
3519                  */
3520                 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3521                 if (ret)
3522                         goto out_remove_binding;
3523
3524                 /* Protect the session to make sure we hear the first
3525                  * beacon on the new channel.
3526                  */
3527                 iwl_mvm_protect_session(mvm, vif, duration, duration,
3528                                         vif->bss_conf.beacon_int / 2,
3529                                         true);
3530
3531                 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3532
3533                 iwl_mvm_update_quotas(mvm, false, NULL);
3534         }
3535
3536         goto out;
3537
3538 out_remove_binding:
3539         iwl_mvm_binding_remove_vif(mvm, vif);
3540         iwl_mvm_power_update_mac(mvm);
3541 out:
3542         if (ret)
3543                 mvmvif->phy_ctxt = NULL;
3544         return ret;
3545 }
3546 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3547                                       struct ieee80211_vif *vif,
3548                                       struct ieee80211_chanctx_conf *ctx)
3549 {
3550         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3551         int ret;
3552
3553         mutex_lock(&mvm->mutex);
3554         ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
3555         mutex_unlock(&mvm->mutex);
3556
3557         return ret;
3558 }
3559
3560 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3561                                            struct ieee80211_vif *vif,
3562                                            struct ieee80211_chanctx_conf *ctx,
3563                                            bool switching_chanctx)
3564 {
3565         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3566         struct ieee80211_vif *disabled_vif = NULL;
3567
3568         lockdep_assert_held(&mvm->mutex);
3569
3570         iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3571
3572         switch (vif->type) {
3573         case NL80211_IFTYPE_ADHOC:
3574                 goto out;
3575         case NL80211_IFTYPE_MONITOR:
3576                 mvmvif->monitor_active = false;
3577                 mvmvif->ps_disabled = false;
3578                 iwl_mvm_rm_snif_sta(mvm, vif);
3579                 break;
3580         case NL80211_IFTYPE_AP:
3581                 /* This part is triggered only during CSA */
3582                 if (!switching_chanctx || !mvmvif->ap_ibss_active)
3583                         goto out;
3584
3585                 mvmvif->csa_countdown = false;
3586
3587                 /* Set CS bit on all the stations */
3588                 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3589
3590                 /* Save blocked iface, the timeout is set on the next beacon */
3591                 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3592
3593                 mvmvif->ap_ibss_active = false;
3594                 break;
3595         case NL80211_IFTYPE_STATION:
3596                 if (!switching_chanctx)
3597                         break;
3598
3599                 disabled_vif = vif;
3600
3601                 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
3602                 break;
3603         default:
3604                 break;
3605         }
3606
3607         iwl_mvm_update_quotas(mvm, false, disabled_vif);
3608         iwl_mvm_binding_remove_vif(mvm, vif);
3609
3610 out:
3611         mvmvif->phy_ctxt = NULL;
3612         iwl_mvm_power_update_mac(mvm);
3613 }
3614
3615 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3616                                          struct ieee80211_vif *vif,
3617                                          struct ieee80211_chanctx_conf *ctx)
3618 {
3619         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3620
3621         mutex_lock(&mvm->mutex);
3622         __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
3623         mutex_unlock(&mvm->mutex);
3624 }
3625
3626 static int
3627 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3628                                 struct ieee80211_vif_chanctx_switch *vifs)
3629 {
3630         int ret;
3631
3632         mutex_lock(&mvm->mutex);
3633         __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3634         __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3635
3636         ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3637         if (ret) {
3638                 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3639                 goto out_reassign;
3640         }
3641
3642         ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3643                                            true);
3644         if (ret) {
3645                 IWL_ERR(mvm,
3646                         "failed to assign new_ctx during channel switch\n");
3647                 goto out_remove;
3648         }
3649
3650         /* we don't support TDLS during DCM - can be caused by channel switch */
3651         if (iwl_mvm_phy_ctx_count(mvm) > 1)
3652                 iwl_mvm_teardown_tdls_peers(mvm);
3653
3654         goto out;
3655
3656 out_remove:
3657         __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3658
3659 out_reassign:
3660         if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
3661                 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3662                 goto out_restart;
3663         }
3664
3665         if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3666                                          true)) {
3667                 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3668                 goto out_restart;
3669         }
3670
3671         goto out;
3672
3673 out_restart:
3674         /* things keep failing, better restart the hw */
3675         iwl_mvm_nic_restart(mvm, false);
3676
3677 out:
3678         mutex_unlock(&mvm->mutex);
3679
3680         return ret;
3681 }
3682
3683 static int
3684 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3685                                     struct ieee80211_vif_chanctx_switch *vifs)
3686 {
3687         int ret;
3688
3689         mutex_lock(&mvm->mutex);
3690         __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3691
3692         ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3693                                            true);
3694         if (ret) {
3695                 IWL_ERR(mvm,
3696                         "failed to assign new_ctx during channel switch\n");
3697                 goto out_reassign;
3698         }
3699
3700         goto out;
3701
3702 out_reassign:
3703         if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3704                                          true)) {
3705                 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3706                 goto out_restart;
3707         }
3708
3709         goto out;
3710
3711 out_restart:
3712         /* things keep failing, better restart the hw */
3713         iwl_mvm_nic_restart(mvm, false);
3714
3715 out:
3716         mutex_unlock(&mvm->mutex);
3717
3718         return ret;
3719 }
3720
3721 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3722                                       struct ieee80211_vif_chanctx_switch *vifs,
3723                                       int n_vifs,
3724                                       enum ieee80211_chanctx_switch_mode mode)
3725 {
3726         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3727         int ret;
3728
3729         /* we only support a single-vif right now */
3730         if (n_vifs > 1)
3731                 return -EOPNOTSUPP;
3732
3733         switch (mode) {
3734         case CHANCTX_SWMODE_SWAP_CONTEXTS:
3735                 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3736                 break;
3737         case CHANCTX_SWMODE_REASSIGN_VIF:
3738                 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
3739                 break;
3740         default:
3741                 ret = -EOPNOTSUPP;
3742                 break;
3743         }
3744
3745         return ret;
3746 }
3747
3748 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
3749 {
3750         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3751
3752         return mvm->ibss_manager;
3753 }
3754
3755 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3756                            struct ieee80211_sta *sta,
3757                            bool set)
3758 {
3759         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3760         struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3761
3762         if (!mvm_sta || !mvm_sta->vif) {
3763                 IWL_ERR(mvm, "Station is not associated to a vif\n");
3764                 return -EINVAL;
3765         }
3766
3767         return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3768 }
3769
3770 #ifdef CONFIG_NL80211_TESTMODE
3771 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3772         [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3773         [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
3774         [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
3775 };
3776
3777 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3778                                       struct ieee80211_vif *vif,
3779                                       void *data, int len)
3780 {
3781         struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3782         int err;
3783         u32 noa_duration;
3784
3785         err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy,
3786                         NULL);
3787         if (err)
3788                 return err;
3789
3790         if (!tb[IWL_MVM_TM_ATTR_CMD])
3791                 return -EINVAL;
3792
3793         switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3794         case IWL_MVM_TM_CMD_SET_NOA:
3795                 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3796                     !vif->bss_conf.enable_beacon ||
3797                     !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3798                         return -EINVAL;
3799
3800                 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3801                 if (noa_duration >= vif->bss_conf.beacon_int)
3802                         return -EINVAL;
3803
3804                 mvm->noa_duration = noa_duration;
3805                 mvm->noa_vif = vif;
3806
3807                 return iwl_mvm_update_quotas(mvm, false, NULL);
3808         case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3809                 /* must be associated client vif - ignore authorized */
3810                 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3811                     !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3812                     !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3813                         return -EINVAL;
3814
3815                 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
3816                         return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3817                 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3818         }
3819
3820         return -EOPNOTSUPP;
3821 }
3822
3823 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3824                                     struct ieee80211_vif *vif,
3825                                     void *data, int len)
3826 {
3827         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3828         int err;
3829
3830         mutex_lock(&mvm->mutex);
3831         err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3832         mutex_unlock(&mvm->mutex);
3833
3834         return err;
3835 }
3836 #endif
3837
3838 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3839                                    struct ieee80211_vif *vif,
3840                                    struct ieee80211_channel_switch *chsw)
3841 {
3842         /* By implementing this operation, we prevent mac80211 from
3843          * starting its own channel switch timer, so that we can call
3844          * ieee80211_chswitch_done() ourselves at the right time
3845          * (which is when the absence time event starts).
3846          */
3847
3848         IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3849                            "dummy channel switch op\n");
3850 }
3851
3852 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3853                                       struct ieee80211_vif *vif,
3854                                       struct ieee80211_channel_switch *chsw)
3855 {
3856         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3857         struct ieee80211_vif *csa_vif;
3858         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3859         u32 apply_time;
3860         int ret;
3861
3862         mutex_lock(&mvm->mutex);
3863
3864         mvmvif->csa_failed = false;
3865
3866         IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
3867                            chsw->chandef.center_freq1);
3868
3869         iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
3870                                        ieee80211_vif_to_wdev(vif),
3871                                        FW_DBG_TRIGGER_CHANNEL_SWITCH);
3872
3873         switch (vif->type) {
3874         case NL80211_IFTYPE_AP:
3875                 csa_vif =
3876                         rcu_dereference_protected(mvm->csa_vif,
3877                                                   lockdep_is_held(&mvm->mutex));
3878                 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3879                               "Another CSA is already in progress")) {
3880                         ret = -EBUSY;
3881                         goto out_unlock;
3882                 }
3883
3884                 /* we still didn't unblock tx. prevent new CS meanwhile */
3885                 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
3886                                               lockdep_is_held(&mvm->mutex))) {
3887                         ret = -EBUSY;
3888                         goto out_unlock;
3889                 }
3890
3891                 rcu_assign_pointer(mvm->csa_vif, vif);
3892
3893                 if (WARN_ONCE(mvmvif->csa_countdown,
3894                               "Previous CSA countdown didn't complete")) {
3895                         ret = -EBUSY;
3896                         goto out_unlock;
3897                 }
3898
3899                 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
3900
3901                 break;
3902         case NL80211_IFTYPE_STATION:
3903                 if (mvmvif->lqm_active)
3904                         iwl_mvm_send_lqm_cmd(vif,
3905                                              LQM_CMD_OPERATION_STOP_MEASUREMENT,
3906                                              0, 0);
3907
3908                 /* Schedule the time event to a bit before beacon 1,
3909                  * to make sure we're in the new channel when the
3910                  * GO/AP arrives. In case count <= 1 immediately schedule the
3911                  * TE (this might result with some packet loss or connection
3912                  * loss).
3913                  */
3914                 if (chsw->count <= 1)
3915                         apply_time = 0;
3916                 else
3917                         apply_time = chsw->device_timestamp +
3918                                 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3919                                   IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
3920
3921                 if (chsw->block_tx)
3922                         iwl_mvm_csa_client_absent(mvm, vif);
3923
3924                 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
3925                                             apply_time);
3926                 if (mvmvif->bf_data.bf_enabled) {
3927                         ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3928                         if (ret)
3929                                 goto out_unlock;
3930                 }
3931
3932                 break;
3933         default:
3934                 break;
3935         }
3936
3937         mvmvif->ps_disabled = true;
3938
3939         ret = iwl_mvm_power_update_ps(mvm);
3940         if (ret)
3941                 goto out_unlock;
3942
3943         /* we won't be on this channel any longer */
3944         iwl_mvm_teardown_tdls_peers(mvm);
3945
3946 out_unlock:
3947         mutex_unlock(&mvm->mutex);
3948
3949         return ret;
3950 }
3951
3952 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3953                                        struct ieee80211_vif *vif)
3954 {
3955         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3956         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3957         int ret;
3958
3959         mutex_lock(&mvm->mutex);
3960
3961         if (mvmvif->csa_failed) {
3962                 mvmvif->csa_failed = false;
3963                 ret = -EIO;
3964                 goto out_unlock;
3965         }
3966
3967         if (vif->type == NL80211_IFTYPE_STATION) {
3968                 struct iwl_mvm_sta *mvmsta;
3969
3970                 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3971                                                           mvmvif->ap_sta_id);
3972
3973                 if (WARN_ON(!mvmsta)) {
3974                         ret = -EIO;
3975                         goto out_unlock;
3976                 }
3977
3978                 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3979
3980                 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3981
3982                 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3983                 if (ret)
3984                         goto out_unlock;
3985
3986                 iwl_mvm_stop_session_protection(mvm, vif);
3987         }
3988
3989         mvmvif->ps_disabled = false;
3990
3991         ret = iwl_mvm_power_update_ps(mvm);
3992
3993 out_unlock:
3994         mutex_unlock(&mvm->mutex);
3995
3996         return ret;
3997 }
3998
3999 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
4000 {
4001         if (drop) {
4002                 if (iwl_mvm_has_new_tx_api(mvm))
4003                         /* TODO new tx api */
4004                         WARN_ONCE(1,
4005                                   "Need to implement flush TX queue\n");
4006                 else
4007                         iwl_mvm_flush_tx_path(mvm,
4008                                 iwl_mvm_flushable_queues(mvm) & queues,
4009                                 0);
4010         } else {
4011                 if (iwl_mvm_has_new_tx_api(mvm)) {
4012                         struct ieee80211_sta *sta;
4013                         int i;
4014
4015                         mutex_lock(&mvm->mutex);
4016
4017                         for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
4018                                 sta = rcu_dereference_protected(
4019                                                 mvm->fw_id_to_mac_id[i],
4020                                                 lockdep_is_held(&mvm->mutex));
4021                                 if (IS_ERR_OR_NULL(sta))
4022                                         continue;
4023
4024                                 iwl_mvm_wait_sta_queues_empty(mvm,
4025                                                 iwl_mvm_sta_from_mac80211(sta));
4026                         }
4027
4028                         mutex_unlock(&mvm->mutex);
4029                 } else {
4030                         iwl_trans_wait_tx_queues_empty(mvm->trans,
4031                                                        queues);
4032                 }
4033         }
4034 }
4035
4036 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
4037                               struct ieee80211_vif *vif, u32 queues, bool drop)
4038 {
4039         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4040         struct iwl_mvm_vif *mvmvif;
4041         struct iwl_mvm_sta *mvmsta;
4042         struct ieee80211_sta *sta;
4043         int i;
4044         u32 msk = 0;
4045
4046         if (!vif) {
4047                 iwl_mvm_flush_no_vif(mvm, queues, drop);
4048                 return;
4049         }
4050
4051         if (vif->type != NL80211_IFTYPE_STATION)
4052                 return;
4053
4054         /* Make sure we're done with the deferred traffic before flushing */
4055         flush_work(&mvm->add_stream_wk);
4056
4057         mutex_lock(&mvm->mutex);
4058         mvmvif = iwl_mvm_vif_from_mac80211(vif);
4059
4060         /* flush the AP-station and all TDLS peers */
4061         for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
4062                 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4063                                                 lockdep_is_held(&mvm->mutex));
4064                 if (IS_ERR_OR_NULL(sta))
4065                         continue;
4066
4067                 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4068                 if (mvmsta->vif != vif)
4069                         continue;
4070
4071                 /* make sure only TDLS peers or the AP are flushed */
4072                 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
4073
4074                 if (drop) {
4075                         if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0))
4076                                 IWL_ERR(mvm, "flush request fail\n");
4077                 } else {
4078                         msk |= mvmsta->tfd_queue_msk;
4079                         if (iwl_mvm_has_new_tx_api(mvm))
4080                                 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
4081                 }
4082         }
4083
4084         mutex_unlock(&mvm->mutex);
4085
4086         /* this can take a while, and we may need/want other operations
4087          * to succeed while doing this, so do it without the mutex held
4088          */
4089         if (!drop && !iwl_mvm_has_new_tx_api(mvm))
4090                 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
4091 }
4092
4093 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
4094                                   struct survey_info *survey)
4095 {
4096         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4097         int ret;
4098
4099         memset(survey, 0, sizeof(*survey));
4100
4101         /* only support global statistics right now */
4102         if (idx != 0)
4103                 return -ENOENT;
4104
4105         if (!fw_has_capa(&mvm->fw->ucode_capa,
4106                          IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
4107                 return -ENOENT;
4108
4109         mutex_lock(&mvm->mutex);
4110
4111         if (iwl_mvm_firmware_running(mvm)) {
4112                 ret = iwl_mvm_request_statistics(mvm, false);
4113                 if (ret)
4114                         goto out;
4115         }
4116
4117         survey->filled = SURVEY_INFO_TIME |
4118                          SURVEY_INFO_TIME_RX |
4119                          SURVEY_INFO_TIME_TX |
4120                          SURVEY_INFO_TIME_SCAN;
4121         survey->time = mvm->accu_radio_stats.on_time_rf +
4122                        mvm->radio_stats.on_time_rf;
4123         do_div(survey->time, USEC_PER_MSEC);
4124
4125         survey->time_rx = mvm->accu_radio_stats.rx_time +
4126                           mvm->radio_stats.rx_time;
4127         do_div(survey->time_rx, USEC_PER_MSEC);
4128
4129         survey->time_tx = mvm->accu_radio_stats.tx_time +
4130                           mvm->radio_stats.tx_time;
4131         do_div(survey->time_tx, USEC_PER_MSEC);
4132
4133         survey->time_scan = mvm->accu_radio_stats.on_time_scan +
4134                             mvm->radio_stats.on_time_scan;
4135         do_div(survey->time_scan, USEC_PER_MSEC);
4136
4137         ret = 0;
4138  out:
4139         mutex_unlock(&mvm->mutex);
4140         return ret;
4141 }
4142
4143 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
4144                                        struct ieee80211_vif *vif,
4145                                        struct ieee80211_sta *sta,
4146                                        struct station_info *sinfo)
4147 {
4148         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4149         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4150         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4151
4152         if (mvmsta->avg_energy) {
4153                 sinfo->signal_avg = mvmsta->avg_energy;
4154                 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG);
4155         }
4156
4157         if (!fw_has_capa(&mvm->fw->ucode_capa,
4158                          IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
4159                 return;
4160
4161         /* if beacon filtering isn't on mac80211 does it anyway */
4162         if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
4163                 return;
4164
4165         if (!vif->bss_conf.assoc)
4166                 return;
4167
4168         mutex_lock(&mvm->mutex);
4169
4170         if (mvmvif->ap_sta_id != mvmsta->sta_id)
4171                 goto unlock;
4172
4173         if (iwl_mvm_request_statistics(mvm, false))
4174                 goto unlock;
4175
4176         sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
4177                            mvmvif->beacon_stats.accu_num_beacons;
4178         sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
4179         if (mvmvif->beacon_stats.avg_signal) {
4180                 /* firmware only reports a value after RXing a few beacons */
4181                 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
4182                 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
4183         }
4184  unlock:
4185         mutex_unlock(&mvm->mutex);
4186 }
4187
4188 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
4189                                         struct ieee80211_vif *vif,
4190                                         const struct ieee80211_event *event)
4191 {
4192 #define CHECK_MLME_TRIGGER(_cnt, _fmt...)                               \
4193         do {                                                            \
4194                 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt))           \
4195                         break;                                          \
4196                 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt);      \
4197         } while (0)
4198
4199         struct iwl_fw_dbg_trigger_tlv *trig;
4200         struct iwl_fw_dbg_trigger_mlme *trig_mlme;
4201
4202         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
4203                 return;
4204
4205         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4206         trig_mlme = (void *)trig->data;
4207         if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4208                                            ieee80211_vif_to_wdev(vif), trig))
4209                 return;
4210
4211         if (event->u.mlme.data == ASSOC_EVENT) {
4212                 if (event->u.mlme.status == MLME_DENIED)
4213                         CHECK_MLME_TRIGGER(stop_assoc_denied,
4214                                            "DENIED ASSOC: reason %d",
4215                                             event->u.mlme.reason);
4216                 else if (event->u.mlme.status == MLME_TIMEOUT)
4217                         CHECK_MLME_TRIGGER(stop_assoc_timeout,
4218                                            "ASSOC TIMEOUT");
4219         } else if (event->u.mlme.data == AUTH_EVENT) {
4220                 if (event->u.mlme.status == MLME_DENIED)
4221                         CHECK_MLME_TRIGGER(stop_auth_denied,
4222                                            "DENIED AUTH: reason %d",
4223                                            event->u.mlme.reason);
4224                 else if (event->u.mlme.status == MLME_TIMEOUT)
4225                         CHECK_MLME_TRIGGER(stop_auth_timeout,
4226                                            "AUTH TIMEOUT");
4227         } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4228                 CHECK_MLME_TRIGGER(stop_rx_deauth,
4229                                    "DEAUTH RX %d", event->u.mlme.reason);
4230         } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4231                 CHECK_MLME_TRIGGER(stop_tx_deauth,
4232                                    "DEAUTH TX %d", event->u.mlme.reason);
4233         }
4234 #undef CHECK_MLME_TRIGGER
4235 }
4236
4237 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4238                                           struct ieee80211_vif *vif,
4239                                           const struct ieee80211_event *event)
4240 {
4241         struct iwl_fw_dbg_trigger_tlv *trig;
4242         struct iwl_fw_dbg_trigger_ba *ba_trig;
4243
4244         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4245                 return;
4246
4247         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4248         ba_trig = (void *)trig->data;
4249         if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4250                                            ieee80211_vif_to_wdev(vif), trig))
4251                 return;
4252
4253         if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4254                 return;
4255
4256         iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4257                                 "BAR received from %pM, tid %d, ssn %d",
4258                                 event->u.ba.sta->addr, event->u.ba.tid,
4259                                 event->u.ba.ssn);
4260 }
4261
4262 static void
4263 iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4264                                      struct ieee80211_vif *vif,
4265                                      const struct ieee80211_event *event)
4266 {
4267         struct iwl_fw_dbg_trigger_tlv *trig;
4268         struct iwl_fw_dbg_trigger_ba *ba_trig;
4269
4270         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4271                 return;
4272
4273         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4274         ba_trig = (void *)trig->data;
4275         if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4276                                            ieee80211_vif_to_wdev(vif), trig))
4277                 return;
4278
4279         if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4280                 return;
4281
4282         iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4283                                 "Frame from %pM timed out, tid %d",
4284                                 event->u.ba.sta->addr, event->u.ba.tid);
4285 }
4286
4287 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4288                                        struct ieee80211_vif *vif,
4289                                        const struct ieee80211_event *event)
4290 {
4291         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4292
4293         switch (event->type) {
4294         case MLME_EVENT:
4295                 iwl_mvm_event_mlme_callback(mvm, vif, event);
4296                 break;
4297         case BAR_RX_EVENT:
4298                 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4299                 break;
4300         case BA_FRAME_TIMEOUT:
4301                 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4302                 break;
4303         default:
4304                 break;
4305         }
4306 }
4307
4308 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
4309                                      struct iwl_mvm_internal_rxq_notif *notif,
4310                                      u32 size)
4311 {
4312         u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
4313         int ret;
4314
4315         lockdep_assert_held(&mvm->mutex);
4316
4317         /* TODO - remove a000 disablement when we have RXQ config API */
4318         if (!iwl_mvm_has_new_rx_api(mvm) ||
4319             mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_A000)
4320                 return;
4321
4322         notif->cookie = mvm->queue_sync_cookie;
4323
4324         if (notif->sync)
4325                 atomic_set(&mvm->queue_sync_counter,
4326                            mvm->trans->num_rx_queues);
4327
4328         ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size);
4329         if (ret) {
4330                 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
4331                 goto out;
4332         }
4333
4334         if (notif->sync) {
4335                 ret = wait_event_timeout(mvm->rx_sync_waitq,
4336                                          atomic_read(&mvm->queue_sync_counter) == 0 ||
4337                                          iwl_mvm_is_radio_killed(mvm),
4338                                          HZ);
4339                 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm));
4340         }
4341
4342 out:
4343         atomic_set(&mvm->queue_sync_counter, 0);
4344         mvm->queue_sync_cookie++;
4345 }
4346
4347 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
4348 {
4349         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4350         struct iwl_mvm_internal_rxq_notif data = {
4351                 .type = IWL_MVM_RXQ_EMPTY,
4352                 .sync = 1,
4353         };
4354
4355         mutex_lock(&mvm->mutex);
4356         iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
4357         mutex_unlock(&mvm->mutex);
4358 }
4359
4360 const struct ieee80211_ops iwl_mvm_hw_ops = {
4361         .tx = iwl_mvm_mac_tx,
4362         .ampdu_action = iwl_mvm_mac_ampdu_action,
4363         .start = iwl_mvm_mac_start,
4364         .reconfig_complete = iwl_mvm_mac_reconfig_complete,
4365         .stop = iwl_mvm_mac_stop,
4366         .add_interface = iwl_mvm_mac_add_interface,
4367         .remove_interface = iwl_mvm_mac_remove_interface,
4368         .config = iwl_mvm_mac_config,
4369         .prepare_multicast = iwl_mvm_prepare_multicast,
4370         .configure_filter = iwl_mvm_configure_filter,
4371         .config_iface_filter = iwl_mvm_config_iface_filter,
4372         .bss_info_changed = iwl_mvm_bss_info_changed,
4373         .hw_scan = iwl_mvm_mac_hw_scan,
4374         .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
4375         .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
4376         .sta_state = iwl_mvm_mac_sta_state,
4377         .sta_notify = iwl_mvm_mac_sta_notify,
4378         .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
4379         .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
4380         .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
4381         .sta_rc_update = iwl_mvm_sta_rc_update,
4382         .conf_tx = iwl_mvm_mac_conf_tx,
4383         .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
4384         .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
4385         .flush = iwl_mvm_mac_flush,
4386         .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4387         .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
4388         .set_key = iwl_mvm_mac_set_key,
4389         .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4390         .remain_on_channel = iwl_mvm_roc,
4391         .cancel_remain_on_channel = iwl_mvm_cancel_roc,
4392         .add_chanctx = iwl_mvm_add_chanctx,
4393         .remove_chanctx = iwl_mvm_remove_chanctx,
4394         .change_chanctx = iwl_mvm_change_chanctx,
4395         .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4396         .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
4397         .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
4398
4399         .start_ap = iwl_mvm_start_ap_ibss,
4400         .stop_ap = iwl_mvm_stop_ap_ibss,
4401         .join_ibss = iwl_mvm_start_ap_ibss,
4402         .leave_ibss = iwl_mvm_stop_ap_ibss,
4403
4404         .tx_last_beacon = iwl_mvm_tx_last_beacon,
4405
4406         .set_tim = iwl_mvm_set_tim,
4407
4408         .channel_switch = iwl_mvm_channel_switch,
4409         .pre_channel_switch = iwl_mvm_pre_channel_switch,
4410         .post_channel_switch = iwl_mvm_post_channel_switch,
4411
4412         .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4413         .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4414         .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4415
4416         .event_callback = iwl_mvm_mac_event_callback,
4417
4418         .sync_rx_queues = iwl_mvm_sync_rx_queues,
4419
4420         CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4421
4422 #ifdef CONFIG_PM_SLEEP
4423         /* look at d3.c */
4424         .suspend = iwl_mvm_suspend,
4425         .resume = iwl_mvm_resume,
4426         .set_wakeup = iwl_mvm_set_wakeup,
4427         .set_rekey_data = iwl_mvm_set_rekey_data,
4428 #if IS_ENABLED(CONFIG_IPV6)
4429         .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4430 #endif
4431         .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4432 #endif
4433         .get_survey = iwl_mvm_mac_get_survey,
4434         .sta_statistics = iwl_mvm_mac_sta_statistics,
4435 };