drivers/net/wireless/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 - 2013 Intel Corporation. All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  22  * USA
  23  *
  24  * The full GNU General Public License is included in this distribution
  25  * in the file called COPYING.
  26  *
  27  * Contact Information:
  28  *  Intel Linux Wireless <ilw@linux.intel.com>
  29  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30  *
  31  * BSD LICENSE
  32  *
  33  * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  *
  40  *  * Redistributions of source code must retain the above copyright
  41  *    notice, this list of conditions and the following disclaimer.
  42  *  * Redistributions in binary form must reproduce the above copyright
  43  *    notice, this list of conditions and the following disclaimer in
  44  *    the documentation and/or other materials provided with the
  45  *    distribution.
  46  *  * Neither the name Intel Corporation nor the names of its
  47  *    contributors may be used to endorse or promote products derived
  48  *    from this software without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  51  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  52  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  53  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  54  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  55  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  56  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  60  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  *
  62  *****************************************************************************/
  63 #include <linux/kernel.h>
  64 #include <linux/slab.h>
  65 #include <linux/skbuff.h>
  66 #include <linux/netdevice.h>
  67 #include <linux/etherdevice.h>
  68 #include <linux/ip.h>
  69 #include <net/mac80211.h>
  70 #include <net/tcp.h>
  71
  72 #include "iwl-op-mode.h"
  73 #include "iwl-io.h"
  74 #include "mvm.h"
  75 #include "sta.h"
  76 #include "time-event.h"
  77 #include "iwl-eeprom-parse.h"
  78 #include "fw-api-scan.h"
  79 #include "iwl-phy-db.h"
  80 #include "testmode.h"
  81
  82 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
  83         {
  84                 .max = 1,
  85                 .types = BIT(NL80211_IFTYPE_STATION),
  86         },
  87         {
  88                 .max = 1,
  89                 .types = BIT(NL80211_IFTYPE_AP) |
  90                         BIT(NL80211_IFTYPE_P2P_CLIENT) |
  91                         BIT(NL80211_IFTYPE_P2P_GO),
  92         },
  93         {
  94                 .max = 1,
  95                 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
  96         },
  97 };
  98
  99 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
 100         {
 101                 .num_different_channels = 1,
 102                 .max_interfaces = 3,
 103                 .limits = iwl_mvm_limits,
 104                 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
 105         },
 106 };
 107
 108 #ifdef CONFIG_PM_SLEEP
 109 static const struct nl80211_wowlan_tcp_data_token_feature
 110 iwl_mvm_wowlan_tcp_token_feature = {
 111         .min_len = 0,
 112         .max_len = 255,
 113         .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
 114 };
 115
 116 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
 117         .tok = &iwl_mvm_wowlan_tcp_token_feature,
 118         .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
 119                             sizeof(struct ethhdr) -
 120                             sizeof(struct iphdr) -
 121                             sizeof(struct tcphdr),
 122         .data_interval_max = 65535, /* __le16 in API */
 123         .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
 124                             sizeof(struct ethhdr) -
 125                             sizeof(struct iphdr) -
 126                             sizeof(struct tcphdr),
 127         .seq = true,
 128 };
 129 #endif
 130
 131 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
 132 {
 133         int i;
 134
 135         memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
 136         for (i = 0; i < NUM_PHY_CTX; i++) {
 137                 mvm->phy_ctxts[i].id = i;
 138                 mvm->phy_ctxts[i].ref = 0;
 139         }
 140 }
 141
 142 static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm)
 143 {
 144         /* we create the 802.11 header and SSID element */
 145         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID)
 146                 return mvm->fw->ucode_capa.max_probe_length - 24 - 2;
 147         return mvm->fw->ucode_capa.max_probe_length - 24 - 34;
 148 }
 149
 150 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 151 {
 152         struct ieee80211_hw *hw = mvm->hw;
 153         int num_mac, ret, i;
 154
 155         /* Tell mac80211 our characteristics */
 156         hw->flags = IEEE80211_HW_SIGNAL_DBM |
 157                     IEEE80211_HW_SPECTRUM_MGMT |
 158                     IEEE80211_HW_REPORTS_TX_ACK_STATUS |
 159                     IEEE80211_HW_QUEUE_CONTROL |
 160                     IEEE80211_HW_WANT_MONITOR_VIF |
 161                     IEEE80211_HW_SUPPORTS_PS |
 162                     IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
 163                     IEEE80211_HW_AMPDU_AGGREGATION |
 164                     IEEE80211_HW_TIMING_BEACON_ONLY |
 165                     IEEE80211_HW_CONNECTION_MONITOR |
 166                     IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
 167                     IEEE80211_HW_SUPPORTS_STATIC_SMPS;
 168
 169         hw->queues = mvm->first_agg_queue;
 170         hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
 171         hw->rate_control_algorithm = "iwl-mvm-rs";
 172
 173         /*
 174          * Enable 11w if advertised by firmware and software crypto
 175          * is not enabled (as the firmware will interpret some mgmt
 176          * packets, so enabling it with software crypto isn't safe)
 177          */
 178         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
 179             !iwlwifi_mod_params.sw_crypto)
 180                 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
 181
 182         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT) {
 183                 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
 184                 hw->uapsd_queues = IWL_UAPSD_AC_INFO;
 185                 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
 186         }
 187
 188         hw->sta_data_size = sizeof(struct iwl_mvm_sta);
 189         hw->vif_data_size = sizeof(struct iwl_mvm_vif);
 190         hw->chanctx_data_size = sizeof(u16);
 191
 192         hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
 193                 BIT(NL80211_IFTYPE_P2P_CLIENT) |
 194                 BIT(NL80211_IFTYPE_AP) |
 195                 BIT(NL80211_IFTYPE_P2P_GO) |
 196                 BIT(NL80211_IFTYPE_P2P_DEVICE);
 197
 198         /* IBSS has bugs in older versions */
 199         if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 8)
 200                 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
 201
 202         hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 203         hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
 204                                        REGULATORY_DISABLE_BEACON_HINTS;
 205
 206         hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
 207         hw->wiphy->n_iface_combinations =
 208                 ARRAY_SIZE(iwl_mvm_iface_combinations);
 209
 210         hw->wiphy->max_remain_on_channel_duration = 10000;
 211         hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
 212
 213         /* Extract MAC address */
 214         memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
 215         hw->wiphy->addresses = mvm->addresses;
 216         hw->wiphy->n_addresses = 1;
 217
 218         /* Extract additional MAC addresses if available */
 219         num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
 220                 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
 221
 222         for (i = 1; i < num_mac; i++) {
 223                 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
 224                        ETH_ALEN);
 225                 mvm->addresses[i].addr[5]++;
 226                 hw->wiphy->n_addresses++;
 227         }
 228
 229         iwl_mvm_reset_phy_ctxts(mvm);
 230
 231         hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
 232
 233         hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
 234
 235         if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
 236                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
 237                         &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
 238         if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
 239                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 240                         &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
 241
 242         hw->wiphy->hw_version = mvm->trans->hw_id;
 243
 244         if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
 245                 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
 246         else
 247                 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 248
 249         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SCHED_SCAN) {
 250                 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
 251                 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
 252                 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
 253                 /* we create the 802.11 header and zero length SSID IE. */
 254                 hw->wiphy->max_sched_scan_ie_len =
 255                                         SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
 256         }
 257
 258         hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
 259                                NL80211_FEATURE_P2P_GO_OPPPS;
 260
 261         mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
 262
 263 #ifdef CONFIG_PM_SLEEP
 264         if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
 265             mvm->trans->ops->d3_suspend &&
 266             mvm->trans->ops->d3_resume &&
 267             device_can_wakeup(mvm->trans->dev)) {
 268                 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
 269                                     WIPHY_WOWLAN_DISCONNECT |
 270                                     WIPHY_WOWLAN_EAP_IDENTITY_REQ |
 271                                     WIPHY_WOWLAN_RFKILL_RELEASE;
 272                 if (!iwlwifi_mod_params.sw_crypto)
 273                         mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
 274                                              WIPHY_WOWLAN_GTK_REKEY_FAILURE |
 275                                              WIPHY_WOWLAN_4WAY_HANDSHAKE;
 276
 277                 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
 278                 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
 279                 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
 280                 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
 281                 hw->wiphy->wowlan = &mvm->wowlan;
 282         }
 283 #endif
 284
 285         ret = iwl_mvm_leds_init(mvm);
 286         if (ret)
 287                 return ret;
 288
 289         ret = ieee80211_register_hw(mvm->hw);
 290         if (ret)
 291                 iwl_mvm_leds_exit(mvm);
 292
 293         return ret;
 294 }
 295
 296 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
 297                            struct ieee80211_tx_control *control,
 298                            struct sk_buff *skb)
 299 {
 300         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 301
 302         if (iwl_mvm_is_radio_killed(mvm)) {
 303                 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
 304                 goto drop;
 305         }
 306
 307         if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
 308             !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
 309                 goto drop;
 310
 311         if (control->sta) {
 312                 if (iwl_mvm_tx_skb(mvm, skb, control->sta))
 313                         goto drop;
 314                 return;
 315         }
 316
 317         if (iwl_mvm_tx_skb_non_sta(mvm, skb))
 318                 goto drop;
 319         return;
 320  drop:
 321         ieee80211_free_txskb(hw, skb);
 322 }
 323
 324 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
 325                                     struct ieee80211_vif *vif,
 326                                     enum ieee80211_ampdu_mlme_action action,
 327                                     struct ieee80211_sta *sta, u16 tid,
 328                                     u16 *ssn, u8 buf_size)
 329 {
 330         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 331         int ret;
 332
 333         IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
 334                      sta->addr, tid, action);
 335
 336         if (!(mvm->nvm_data->sku_cap_11n_enable))
 337                 return -EACCES;
 338
 339         mutex_lock(&mvm->mutex);
 340
 341         switch (action) {
 342         case IEEE80211_AMPDU_RX_START:
 343                 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) {
 344                         ret = -EINVAL;
 345                         break;
 346                 }
 347                 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
 348                 break;
 349         case IEEE80211_AMPDU_RX_STOP:
 350                 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
 351                 break;
 352         case IEEE80211_AMPDU_TX_START:
 353                 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) {
 354                         ret = -EINVAL;
 355                         break;
 356                 }
 357                 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
 358                 break;
 359         case IEEE80211_AMPDU_TX_STOP_CONT:
 360                 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
 361                 break;
 362         case IEEE80211_AMPDU_TX_STOP_FLUSH:
 363         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 364                 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
 365                 break;
 366         case IEEE80211_AMPDU_TX_OPERATIONAL:
 367                 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
 368                 break;
 369         default:
 370                 WARN_ON_ONCE(1);
 371                 ret = -EINVAL;
 372                 break;
 373         }
 374         mutex_unlock(&mvm->mutex);
 375
 376         return ret;
 377 }
 378
 379 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
 380                                      struct ieee80211_vif *vif)
 381 {
 382         struct iwl_mvm *mvm = data;
 383         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 384
 385         mvmvif->uploaded = false;
 386         mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
 387
 388         /* does this make sense at all? */
 389         mvmvif->color++;
 390
 391         spin_lock_bh(&mvm->time_event_lock);
 392         iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
 393         spin_unlock_bh(&mvm->time_event_lock);
 394
 395         mvmvif->phy_ctxt = NULL;
 396 }
 397
 398 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
 399 {
 400         iwl_trans_stop_device(mvm->trans);
 401         iwl_trans_stop_hw(mvm->trans, false);
 402
 403         mvm->scan_status = IWL_MVM_SCAN_NONE;
 404
 405         /* just in case one was running */
 406         ieee80211_remain_on_channel_expired(mvm->hw);
 407
 408         ieee80211_iterate_active_interfaces_atomic(
 409                 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
 410                 iwl_mvm_cleanup_iterator, mvm);
 411
 412         mvm->p2p_device_vif = NULL;
 413
 414         iwl_mvm_reset_phy_ctxts(mvm);
 415         memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
 416         memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
 417
 418         ieee80211_wake_queues(mvm->hw);
 419
 420         mvm->vif_count = 0;
 421         mvm->rx_ba_sessions = 0;
 422 }
 423
 424 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
 425 {
 426         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 427         int ret;
 428
 429         mutex_lock(&mvm->mutex);
 430
 431         /* Clean up some internal and mac80211 state on restart */
 432         if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
 433                 iwl_mvm_restart_cleanup(mvm);
 434
 435         ret = iwl_mvm_up(mvm);
 436         mutex_unlock(&mvm->mutex);
 437
 438         return ret;
 439 }
 440
 441 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
 442 {
 443         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 444         int ret;
 445
 446         mutex_lock(&mvm->mutex);
 447
 448         clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
 449         ret = iwl_mvm_update_quotas(mvm, NULL);
 450         if (ret)
 451                 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
 452                         ret);
 453
 454         mutex_unlock(&mvm->mutex);
 455 }
 456
 457 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
 458 {
 459         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 460
 461         flush_work(&mvm->async_handlers_wk);
 462
 463         mutex_lock(&mvm->mutex);
 464         /* async_handlers_wk is now blocked */
 465
 466         /*
 467          * The work item could be running or queued if the
 468          * ROC time event stops just as we get here.
 469          */
 470         cancel_work_sync(&mvm->roc_done_wk);
 471
 472         iwl_trans_stop_device(mvm->trans);
 473         iwl_trans_stop_hw(mvm->trans, false);
 474
 475         iwl_mvm_async_handlers_purge(mvm);
 476         /* async_handlers_list is empty and will stay empty: HW is stopped */
 477
 478         /* the fw is stopped, the aux sta is dead: clean up driver state */
 479         iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
 480
 481         mutex_unlock(&mvm->mutex);
 482
 483         /*
 484          * The worker might have been waiting for the mutex, let it run and
 485          * discover that its list is now empty.
 486          */
 487         cancel_work_sync(&mvm->async_handlers_wk);
 488 }
 489
 490 static void iwl_mvm_pm_disable_iterator(void *data, u8 *mac,
 491                                         struct ieee80211_vif *vif)
 492 {
 493         struct iwl_mvm *mvm = data;
 494         int ret;
 495
 496         ret = iwl_mvm_power_disable(mvm, vif);
 497         if (ret)
 498                 IWL_ERR(mvm, "failed to disable power management\n");
 499 }
 500
 501 static void iwl_mvm_power_update_iterator(void *data, u8 *mac,
 502                                           struct ieee80211_vif *vif)
 503 {
 504         struct iwl_mvm *mvm = data;
 505
 506         iwl_mvm_power_update_mode(mvm, vif);
 507 }
 508
 509 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
 510 {
 511         u16 i;
 512
 513         lockdep_assert_held(&mvm->mutex);
 514
 515         for (i = 0; i < NUM_PHY_CTX; i++)
 516                 if (!mvm->phy_ctxts[i].ref)
 517                         return &mvm->phy_ctxts[i];
 518
 519         IWL_ERR(mvm, "No available PHY context\n");
 520         return NULL;
 521 }
 522
 523 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 524                                      struct ieee80211_vif *vif)
 525 {
 526         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 527         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 528         int ret;
 529
 530         /*
 531          * Not much to do here. The stack will not allow interface
 532          * types or combinations that we didn't advertise, so we
 533          * don't really have to check the types.
 534          */
 535
 536         mutex_lock(&mvm->mutex);
 537
 538         /* Allocate resources for the MAC context, and add it to the fw  */
 539         ret = iwl_mvm_mac_ctxt_init(mvm, vif);
 540         if (ret)
 541                 goto out_unlock;
 542
 543         /*
 544          * TODO: remove this temporary code.
 545          * Currently MVM FW supports power management only on single MAC.
 546          * If new interface added, disable PM on existing interface.
 547          * P2P device is a special case, since it is handled by FW similary to
 548          * scan. If P2P deviced is added, PM remains enabled on existing
 549          * interface.
 550          * Note: the method below does not count the new interface being added
 551          * at this moment.
 552          */
 553         if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
 554                 mvm->vif_count++;
 555         if (mvm->vif_count > 1) {
 556                 IWL_DEBUG_MAC80211(mvm,
 557                                    "Disable power on existing interfaces\n");
 558                 ieee80211_iterate_active_interfaces_atomic(
 559                                             mvm->hw,
 560                                             IEEE80211_IFACE_ITER_NORMAL,
 561                                             iwl_mvm_pm_disable_iterator, mvm);
 562         }
 563
 564         /*
 565          * The AP binding flow can be done only after the beacon
 566          * template is configured (which happens only in the mac80211
 567          * start_ap() flow), and adding the broadcast station can happen
 568          * only after the binding.
 569          * In addition, since modifying the MAC before adding a bcast
 570          * station is not allowed by the FW, delay the adding of MAC context to
 571          * the point where we can also add the bcast station.
 572          * In short: there's not much we can do at this point, other than
 573          * allocating resources :)
 574          */
 575         if (vif->type == NL80211_IFTYPE_AP ||
 576             vif->type == NL80211_IFTYPE_ADHOC) {
 577                 u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
 578                 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
 579                                                qmask);
 580                 if (ret) {
 581                         IWL_ERR(mvm, "Failed to allocate bcast sta\n");
 582                         goto out_release;
 583                 }
 584
 585                 iwl_mvm_vif_dbgfs_register(mvm, vif);
 586                 goto out_unlock;
 587         }
 588
 589         ret = iwl_mvm_mac_ctxt_add(mvm, vif);
 590         if (ret)
 591                 goto out_release;
 592
 593         /*
 594          * Update power state on the new interface. Admittedly, based on
 595          * mac80211 logics this power update will disable power management
 596          */
 597         iwl_mvm_power_update_mode(mvm, vif);
 598
 599         /* beacon filtering */
 600         ret = iwl_mvm_disable_beacon_filter(mvm, vif);
 601         if (ret)
 602                 goto out_remove_mac;
 603
 604         if (!mvm->bf_allowed_vif &&
 605             vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
 606             mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED){
 607                 mvm->bf_allowed_vif = mvmvif;
 608                 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
 609                                      IEEE80211_VIF_SUPPORTS_CQM_RSSI;
 610         }
 611
 612         /*
 613          * P2P_DEVICE interface does not have a channel context assigned to it,
 614          * so a dedicated PHY context is allocated to it and the corresponding
 615          * MAC context is bound to it at this stage.
 616          */
 617         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 618
 619                 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
 620                 if (!mvmvif->phy_ctxt) {
 621                         ret = -ENOSPC;
 622                         goto out_free_bf;
 623                 }
 624
 625                 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
 626                 ret = iwl_mvm_binding_add_vif(mvm, vif);
 627                 if (ret)
 628                         goto out_unref_phy;
 629
 630                 ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
 631                 if (ret)
 632                         goto out_unbind;
 633
 634                 /* Save a pointer to p2p device vif, so it can later be used to
 635                  * update the p2p device MAC when a GO is started/stopped */
 636                 mvm->p2p_device_vif = vif;
 637         }
 638
 639         iwl_mvm_vif_dbgfs_register(mvm, vif);
 640         goto out_unlock;
 641
 642  out_unbind:
 643         iwl_mvm_binding_remove_vif(mvm, vif);
 644  out_unref_phy:
 645         iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
 646  out_free_bf:
 647         if (mvm->bf_allowed_vif == mvmvif) {
 648                 mvm->bf_allowed_vif = NULL;
 649                 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
 650                                        IEEE80211_VIF_SUPPORTS_CQM_RSSI);
 651         }
 652  out_remove_mac:
 653         mvmvif->phy_ctxt = NULL;
 654         iwl_mvm_mac_ctxt_remove(mvm, vif);
 655  out_release:
 656         if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
 657                 mvm->vif_count--;
 658         ieee80211_iterate_active_interfaces(
 659                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 660                 iwl_mvm_power_update_iterator, mvm);
 661         iwl_mvm_mac_ctxt_release(mvm, vif);
 662  out_unlock:
 663         mutex_unlock(&mvm->mutex);
 664
 665         return ret;
 666 }
 667
 668 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
 669                                         struct ieee80211_vif *vif)
 670 {
 671         u32 tfd_msk = 0, ac;
 672
 673         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 674                 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
 675                         tfd_msk |= BIT(vif->hw_queue[ac]);
 676
 677         if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
 678                 tfd_msk |= BIT(vif->cab_queue);
 679
 680         if (tfd_msk) {
 681                 mutex_lock(&mvm->mutex);
 682                 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
 683                 mutex_unlock(&mvm->mutex);
 684         }
 685
 686         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 687                 /*
 688                  * Flush the ROC worker which will flush the OFFCHANNEL queue.
 689                  * We assume here that all the packets sent to the OFFCHANNEL
 690                  * queue are sent in ROC session.
 691                  */
 692                 flush_work(&mvm->roc_done_wk);
 693         } else {
 694                 /*
 695                  * By now, all the AC queues are empty. The AGG queues are
 696                  * empty too. We already got all the Tx responses for all the
 697                  * packets in the queues. The drain work can have been
 698                  * triggered. Flush it.
 699                  */
 700                 flush_work(&mvm->sta_drained_wk);
 701         }
 702 }
 703
 704 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
 705                                          struct ieee80211_vif *vif)
 706 {
 707         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 708         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 709
 710         iwl_mvm_prepare_mac_removal(mvm, vif);
 711
 712         mutex_lock(&mvm->mutex);
 713
 714         if (mvm->bf_allowed_vif == mvmvif) {
 715                 mvm->bf_allowed_vif = NULL;
 716                 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
 717                                        IEEE80211_VIF_SUPPORTS_CQM_RSSI);
 718         }
 719
 720         iwl_mvm_vif_dbgfs_clean(mvm, vif);
 721
 722         /*
 723          * For AP/GO interface, the tear down of the resources allocated to the
 724          * interface is be handled as part of the stop_ap flow.
 725          */
 726         if (vif->type == NL80211_IFTYPE_AP ||
 727             vif->type == NL80211_IFTYPE_ADHOC) {
 728 #ifdef CONFIG_NL80211_TESTMODE
 729                 if (vif == mvm->noa_vif) {
 730                         mvm->noa_vif = NULL;
 731                         mvm->noa_duration = 0;
 732                 }
 733 #endif
 734                 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
 735                 goto out_release;
 736         }
 737
 738         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 739                 mvm->p2p_device_vif = NULL;
 740                 iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
 741                 iwl_mvm_binding_remove_vif(mvm, vif);
 742                 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
 743                 mvmvif->phy_ctxt = NULL;
 744         }
 745
 746         /*
 747          * TODO: remove this temporary code.
 748          * Currently MVM FW supports power management only on single MAC.
 749          * Check if only one additional interface remains after removing
 750          * current one. Update power mode on the remaining interface.
 751          */
 752         if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
 753                 mvm->vif_count--;
 754         IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
 755                            mvm->vif_count);
 756         if (mvm->vif_count == 1) {
 757                 ieee80211_iterate_active_interfaces(
 758                                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 759                                         iwl_mvm_power_update_iterator, mvm);
 760         }
 761
 762         iwl_mvm_mac_ctxt_remove(mvm, vif);
 763
 764 out_release:
 765         iwl_mvm_mac_ctxt_release(mvm, vif);
 766         mutex_unlock(&mvm->mutex);
 767 }
 768
 769 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 770                                 s8 tx_power)
 771 {
 772         /* FW is in charge of regulatory enforcement */
 773         struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
 774                 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
 775                 .pwr_restriction = cpu_to_le16(tx_power),
 776         };
 777
 778         return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, CMD_SYNC,
 779                                     sizeof(reduce_txpwr_cmd),
 780                                     &reduce_txpwr_cmd);
 781 }
 782
 783 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
 784 {
 785         return 0;
 786 }
 787
 788 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
 789                                      unsigned int changed_flags,
 790                                      unsigned int *total_flags,
 791                                      u64 multicast)
 792 {
 793         *total_flags = 0;
 794 }
 795
 796 static int iwl_mvm_configure_mcast_filter(struct iwl_mvm *mvm,
 797                                           struct ieee80211_vif *vif)
 798 {
 799         struct iwl_mcast_filter_cmd mcast_filter_cmd = {
 800                 .pass_all = 1,
 801         };
 802
 803         memcpy(mcast_filter_cmd.bssid, vif->bss_conf.bssid, ETH_ALEN);
 804
 805         return iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC,
 806                                     sizeof(mcast_filter_cmd),
 807                                     &mcast_filter_cmd);
 808 }
 809
 810 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 811                                              struct ieee80211_vif *vif,
 812                                              struct ieee80211_bss_conf *bss_conf,
 813                                              u32 changes)
 814 {
 815         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 816         int ret;
 817
 818         ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
 819         if (ret)
 820                 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
 821
 822         if (changes & BSS_CHANGED_ASSOC) {
 823                 if (bss_conf->assoc) {
 824                         /* add quota for this interface */
 825                         ret = iwl_mvm_update_quotas(mvm, vif);
 826                         if (ret) {
 827                                 IWL_ERR(mvm, "failed to update quotas\n");
 828                                 return;
 829                         }
 830                         iwl_mvm_configure_mcast_filter(mvm, vif);
 831
 832                         if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
 833                                      &mvm->status)) {
 834                                 /*
 835                                  * If we're restarting then the firmware will
 836                                  * obviously have lost synchronisation with
 837                                  * the AP. It will attempt to synchronise by
 838                                  * itself, but we can make it more reliable by
 839                                  * scheduling a session protection time event.
 840                                  *
 841                                  * The firmware needs to receive a beacon to
 842                                  * catch up with synchronisation, use 110% of
 843                                  * the beacon interval.
 844                                  *
 845                                  * Set a large maximum delay to allow for more
 846                                  * than a single interface.
 847                                  */
 848                                 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
 849                                 iwl_mvm_protect_session(mvm, vif, dur, dur,
 850                                                         5 * dur);
 851                         }
 852                 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
 853                         /* remove AP station now that the MAC is unassoc */
 854                         ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
 855                         if (ret)
 856                                 IWL_ERR(mvm, "failed to remove AP station\n");
 857                         mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
 858                         /* remove quota for this interface */
 859                         ret = iwl_mvm_update_quotas(mvm, NULL);
 860                         if (ret)
 861                                 IWL_ERR(mvm, "failed to update quotas\n");
 862                 }
 863
 864                 /* reset rssi values */
 865                 mvmvif->bf_data.ave_beacon_signal = 0;
 866
 867                 if (!(mvm->fw->ucode_capa.flags &
 868                                         IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT)) {
 869                         /* Workaround for FW bug, otherwise FW disables device
 870                          * power save upon disassociation
 871                          */
 872                         ret = iwl_mvm_power_update_mode(mvm, vif);
 873                         if (ret)
 874                                 IWL_ERR(mvm, "failed to update power mode\n");
 875                 }
 876                 iwl_mvm_bt_coex_vif_change(mvm);
 877         } else if (changes & BSS_CHANGED_BEACON_INFO) {
 878                 /*
 879                  * We received a beacon _after_ association so
 880                  * remove the session protection.
 881                  */
 882                 iwl_mvm_remove_time_event(mvm, mvmvif,
 883                                           &mvmvif->time_event_data);
 884         } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_QOS)) {
 885                 ret = iwl_mvm_power_update_mode(mvm, vif);
 886                 if (ret)
 887                         IWL_ERR(mvm, "failed to update power mode\n");
 888         }
 889         if (changes & BSS_CHANGED_TXPOWER) {
 890                 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
 891                                 bss_conf->txpower);
 892                 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
 893         }
 894
 895         if (changes & BSS_CHANGED_CQM) {
 896                 IWL_DEBUG_MAC80211(mvm, "cqm info_changed");
 897                 /* reset cqm events tracking */
 898                 mvmvif->bf_data.last_cqm_event = 0;
 899                 ret = iwl_mvm_update_beacon_filter(mvm, vif);
 900                 if (ret)
 901                         IWL_ERR(mvm, "failed to update CQM thresholds\n");
 902         }
 903 }
 904
 905 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
 906                                  struct ieee80211_vif *vif)
 907 {
 908         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 909         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 910         int ret;
 911
 912         mutex_lock(&mvm->mutex);
 913
 914         /* Send the beacon template */
 915         ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
 916         if (ret)
 917                 goto out_unlock;
 918
 919         /* Add the mac context */
 920         ret = iwl_mvm_mac_ctxt_add(mvm, vif);
 921         if (ret)
 922                 goto out_unlock;
 923
 924         /* Perform the binding */
 925         ret = iwl_mvm_binding_add_vif(mvm, vif);
 926         if (ret)
 927                 goto out_remove;
 928
 929         mvmvif->ap_ibss_active = true;
 930
 931         /* Send the bcast station. At this stage the TBTT and DTIM time events
 932          * are added and applied to the scheduler */
 933         ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
 934         if (ret)
 935                 goto out_unbind;
 936
 937         ret = iwl_mvm_update_quotas(mvm, vif);
 938         if (ret)
 939                 goto out_rm_bcast;
 940
 941         /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
 942         if (vif->p2p && mvm->p2p_device_vif)
 943                 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
 944
 945         iwl_mvm_bt_coex_vif_change(mvm);
 946
 947         mutex_unlock(&mvm->mutex);
 948         return 0;
 949
 950 out_rm_bcast:
 951         iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
 952 out_unbind:
 953         iwl_mvm_binding_remove_vif(mvm, vif);
 954 out_remove:
 955         iwl_mvm_mac_ctxt_remove(mvm, vif);
 956 out_unlock:
 957         mutex_unlock(&mvm->mutex);
 958         return ret;
 959 }
 960
 961 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
 962                                  struct ieee80211_vif *vif)
 963 {
 964         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 965         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 966
 967         iwl_mvm_prepare_mac_removal(mvm, vif);
 968
 969         mutex_lock(&mvm->mutex);
 970
 971         mvmvif->ap_ibss_active = false;
 972
 973         iwl_mvm_bt_coex_vif_change(mvm);
 974
 975         /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
 976         if (vif->p2p && mvm->p2p_device_vif)
 977                 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
 978
 979         iwl_mvm_update_quotas(mvm, NULL);
 980         iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
 981         iwl_mvm_binding_remove_vif(mvm, vif);
 982         iwl_mvm_mac_ctxt_remove(mvm, vif);
 983
 984         mutex_unlock(&mvm->mutex);
 985 }
 986
 987 static void
 988 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
 989                                  struct ieee80211_vif *vif,
 990                                  struct ieee80211_bss_conf *bss_conf,
 991                                  u32 changes)
 992 {
 993         /* Need to send a new beacon template to the FW */
 994         if (changes & BSS_CHANGED_BEACON) {
 995                 if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
 996                         IWL_WARN(mvm, "Failed updating beacon data\n");
 997         }
 998 }
 999
1000 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1001                                      struct ieee80211_vif *vif,
1002                                      struct ieee80211_bss_conf *bss_conf,
1003                                      u32 changes)
1004 {
1005         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1006
1007         mutex_lock(&mvm->mutex);
1008
1009         switch (vif->type) {
1010         case NL80211_IFTYPE_STATION:
1011                 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1012                 break;
1013         case NL80211_IFTYPE_AP:
1014         case NL80211_IFTYPE_ADHOC:
1015                 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1016                 break;
1017         default:
1018                 /* shouldn't happen */
1019                 WARN_ON_ONCE(1);
1020         }
1021
1022         mutex_unlock(&mvm->mutex);
1023 }
1024
1025 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1026                                struct ieee80211_vif *vif,
1027                                struct cfg80211_scan_request *req)
1028 {
1029         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1030         int ret;
1031
1032         if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
1033                 return -EINVAL;
1034
1035         mutex_lock(&mvm->mutex);
1036
1037         if (mvm->scan_status == IWL_MVM_SCAN_NONE)
1038                 ret = iwl_mvm_scan_request(mvm, vif, req);
1039         else
1040                 ret = -EBUSY;
1041
1042         mutex_unlock(&mvm->mutex);
1043
1044         return ret;
1045 }
1046
1047 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1048                                        struct ieee80211_vif *vif)
1049 {
1050         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1051
1052         mutex_lock(&mvm->mutex);
1053
1054         iwl_mvm_cancel_scan(mvm);
1055
1056         mutex_unlock(&mvm->mutex);
1057 }
1058
1059 static void
1060 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1061                                   struct ieee80211_sta *sta, u16 tid,
1062                                   int num_frames,
1063                                   enum ieee80211_frame_release_type reason,
1064                                   bool more_data)
1065 {
1066         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1067
1068         /* TODO: how do we tell the fw to send frames for a specific TID */
1069
1070         /*
1071          * The fw will send EOSP notification when the last frame will be
1072          * transmitted.
1073          */
1074         iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames);
1075 }
1076
1077 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1078                                    struct ieee80211_vif *vif,
1079                                    enum sta_notify_cmd cmd,
1080                                    struct ieee80211_sta *sta)
1081 {
1082         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1083         struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
1084
1085         switch (cmd) {
1086         case STA_NOTIFY_SLEEP:
1087                 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
1088                         ieee80211_sta_block_awake(hw, sta, true);
1089                 /*
1090                  * The fw updates the STA to be asleep. Tx packets on the Tx
1091                  * queues to this station will not be transmitted. The fw will
1092                  * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1093                  */
1094                 break;
1095         case STA_NOTIFY_AWAKE:
1096                 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
1097                         break;
1098                 iwl_mvm_sta_modify_ps_wake(mvm, sta);
1099                 break;
1100         default:
1101                 break;
1102         }
1103 }
1104
1105 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1106                                  struct ieee80211_vif *vif,
1107                                  struct ieee80211_sta *sta,
1108                                  enum ieee80211_sta_state old_state,
1109                                  enum ieee80211_sta_state new_state)
1110 {
1111         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1112         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1113         int ret;
1114
1115         IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1116                            sta->addr, old_state, new_state);
1117
1118         /* this would be a mac80211 bug ... but don't crash */
1119         if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1120                 return -EINVAL;
1121
1122         /* if a STA is being removed, reuse its ID */
1123         flush_work(&mvm->sta_drained_wk);
1124
1125         mutex_lock(&mvm->mutex);
1126         if (old_state == IEEE80211_STA_NOTEXIST &&
1127             new_state == IEEE80211_STA_NONE) {
1128                 /*
1129                  * Firmware bug - it'll crash if the beacon interval is less
1130                  * than 16. We can't avoid connecting at all, so refuse the
1131                  * station state change, this will cause mac80211 to abandon
1132                  * attempts to connect to this AP, and eventually wpa_s will
1133                  * blacklist the AP...
1134                  */
1135                 if (vif->type == NL80211_IFTYPE_STATION &&
1136                     vif->bss_conf.beacon_int < 16) {
1137                         IWL_ERR(mvm,
1138                                 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1139                                 sta->addr, vif->bss_conf.beacon_int);
1140                         ret = -EINVAL;
1141                         goto out_unlock;
1142                 }
1143                 ret = iwl_mvm_add_sta(mvm, vif, sta);
1144         } else if (old_state == IEEE80211_STA_NONE &&
1145                    new_state == IEEE80211_STA_AUTH) {
1146                 ret = 0;
1147         } else if (old_state == IEEE80211_STA_AUTH &&
1148                    new_state == IEEE80211_STA_ASSOC) {
1149                 ret = iwl_mvm_update_sta(mvm, vif, sta);
1150                 if (ret == 0)
1151                         iwl_mvm_rs_rate_init(mvm, sta,
1152                                              mvmvif->phy_ctxt->channel->band);
1153         } else if (old_state == IEEE80211_STA_ASSOC &&
1154                    new_state == IEEE80211_STA_AUTHORIZED) {
1155                 /* enable beacon filtering */
1156                 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif));
1157                 ret = 0;
1158         } else if (old_state == IEEE80211_STA_AUTHORIZED &&
1159                    new_state == IEEE80211_STA_ASSOC) {
1160                 /* disable beacon filtering */
1161                 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif));
1162                 ret = 0;
1163         } else if (old_state == IEEE80211_STA_ASSOC &&
1164                    new_state == IEEE80211_STA_AUTH) {
1165                 ret = 0;
1166         } else if (old_state == IEEE80211_STA_AUTH &&
1167                    new_state == IEEE80211_STA_NONE) {
1168                 ret = 0;
1169         } else if (old_state == IEEE80211_STA_NONE &&
1170                    new_state == IEEE80211_STA_NOTEXIST) {
1171                 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1172         } else {
1173                 ret = -EIO;
1174         }
1175  out_unlock:
1176         mutex_unlock(&mvm->mutex);
1177
1178         return ret;
1179 }
1180
1181 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1182 {
1183         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1184
1185         mvm->rts_threshold = value;
1186
1187         return 0;
1188 }
1189
1190 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
1191                                struct ieee80211_vif *vif, u16 ac,
1192                                const struct ieee80211_tx_queue_params *params)
1193 {
1194         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1195         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1196
1197         mvmvif->queue_params[ac] = *params;
1198
1199         /*
1200          * No need to update right away, we'll get BSS_CHANGED_QOS
1201          * The exception is P2P_DEVICE interface which needs immediate update.
1202          */
1203         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1204                 int ret;
1205
1206                 mutex_lock(&mvm->mutex);
1207                 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1208                 mutex_unlock(&mvm->mutex);
1209                 return ret;
1210         }
1211         return 0;
1212 }
1213
1214 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
1215                                       struct ieee80211_vif *vif)
1216 {
1217         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1218         u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
1219                            200 + vif->bss_conf.beacon_int);
1220         u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
1221                                100 + vif->bss_conf.beacon_int);
1222
1223         if (WARN_ON_ONCE(vif->bss_conf.assoc))
1224                 return;
1225
1226         mutex_lock(&mvm->mutex);
1227         /* Try really hard to protect the session and hear a beacon */
1228         iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500);
1229         mutex_unlock(&mvm->mutex);
1230 }
1231
1232 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
1233                                         struct ieee80211_vif *vif,
1234                                         struct cfg80211_sched_scan_request *req,
1235                                         struct ieee80211_sched_scan_ies *ies)
1236 {
1237         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1238         int ret;
1239
1240         mutex_lock(&mvm->mutex);
1241
1242         if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1243                 IWL_DEBUG_SCAN(mvm,
1244                                "SCHED SCAN request during internal scan - abort\n");
1245                 ret = -EBUSY;
1246                 goto out;
1247         }
1248
1249         mvm->scan_status = IWL_MVM_SCAN_SCHED;
1250
1251         ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
1252         if (ret)
1253                 goto err;
1254
1255         ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
1256         if (ret)
1257                 goto err;
1258
1259         ret = iwl_mvm_sched_scan_start(mvm, req);
1260         if (!ret)
1261                 goto out;
1262 err:
1263         mvm->scan_status = IWL_MVM_SCAN_NONE;
1264 out:
1265         mutex_unlock(&mvm->mutex);
1266         return ret;
1267 }
1268
1269 static void iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
1270                                         struct ieee80211_vif *vif)
1271 {
1272         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1273
1274         mutex_lock(&mvm->mutex);
1275         iwl_mvm_sched_scan_stop(mvm);
1276         mutex_unlock(&mvm->mutex);
1277 }
1278
1279 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
1280                                enum set_key_cmd cmd,
1281                                struct ieee80211_vif *vif,
1282                                struct ieee80211_sta *sta,
1283                                struct ieee80211_key_conf *key)
1284 {
1285         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1286         int ret;
1287
1288         if (iwlwifi_mod_params.sw_crypto) {
1289                 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
1290                 return -EOPNOTSUPP;
1291         }
1292
1293         switch (key->cipher) {
1294         case WLAN_CIPHER_SUITE_TKIP:
1295                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1296                 /* fall-through */
1297         case WLAN_CIPHER_SUITE_CCMP:
1298                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1299                 break;
1300         case WLAN_CIPHER_SUITE_AES_CMAC:
1301                 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
1302                 break;
1303         case WLAN_CIPHER_SUITE_WEP40:
1304         case WLAN_CIPHER_SUITE_WEP104:
1305                 /*
1306                  * Support for TX only, at least for now, so accept
1307                  * the key and do nothing else. Then mac80211 will
1308                  * pass it for TX but we don't have to use it for RX.
1309                  */
1310                 return 0;
1311         default:
1312                 return -EOPNOTSUPP;
1313         }
1314
1315         mutex_lock(&mvm->mutex);
1316
1317         switch (cmd) {
1318         case SET_KEY:
1319                 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1320                      vif->type == NL80211_IFTYPE_AP) && !sta) {
1321                         /*
1322                          * GTK on AP interface is a TX-only key, return 0;
1323                          * on IBSS they're per-station and because we're lazy
1324                          * we don't support them for RX, so do the same.
1325                          */
1326                         ret = 0;
1327                         key->hw_key_idx = STA_KEY_IDX_INVALID;
1328                         break;
1329                 }
1330
1331                 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
1332                 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
1333                 if (ret) {
1334                         IWL_WARN(mvm, "set key failed\n");
1335                         /*
1336                          * can't add key for RX, but we don't need it
1337                          * in the device for TX so still return 0
1338                          */
1339                         key->hw_key_idx = STA_KEY_IDX_INVALID;
1340                         ret = 0;
1341                 }
1342
1343                 break;
1344         case DISABLE_KEY:
1345                 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
1346                         ret = 0;
1347                         break;
1348                 }
1349
1350                 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
1351                 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
1352                 break;
1353         default:
1354                 ret = -EINVAL;
1355         }
1356
1357         mutex_unlock(&mvm->mutex);
1358         return ret;
1359 }
1360
1361 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
1362                                         struct ieee80211_vif *vif,
1363                                         struct ieee80211_key_conf *keyconf,
1364                                         struct ieee80211_sta *sta,
1365                                         u32 iv32, u16 *phase1key)
1366 {
1367         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1368
1369         if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
1370                 return;
1371
1372         iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
1373 }
1374
1375
1376 static int iwl_mvm_roc(struct ieee80211_hw *hw,
1377                        struct ieee80211_vif *vif,
1378                        struct ieee80211_channel *channel,
1379                        int duration,
1380                        enum ieee80211_roc_type type)
1381 {
1382         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1383         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1384         struct cfg80211_chan_def chandef;
1385         struct iwl_mvm_phy_ctxt *phy_ctxt;
1386         int ret, i;
1387
1388         IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
1389                            duration, type);
1390
1391         if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
1392                 IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
1393                 return -EINVAL;
1394         }
1395
1396         mutex_lock(&mvm->mutex);
1397
1398         for (i = 0; i < NUM_PHY_CTX; i++) {
1399                 phy_ctxt = &mvm->phy_ctxts[i];
1400                 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
1401                         continue;
1402
1403                 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
1404                         /*
1405                          * Unbind the P2P_DEVICE from the current PHY context,
1406                          * and if the PHY context is not used remove it.
1407                          */
1408                         ret = iwl_mvm_binding_remove_vif(mvm, vif);
1409                         if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1410                                 goto out_unlock;
1411
1412                         iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1413
1414                         /* Bind the P2P_DEVICE to the current PHY Context */
1415                         mvmvif->phy_ctxt = phy_ctxt;
1416
1417                         ret = iwl_mvm_binding_add_vif(mvm, vif);
1418                         if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1419                                 goto out_unlock;
1420
1421                         iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1422                         goto schedule_time_event;
1423                 }
1424         }
1425
1426         /* Need to update the PHY context only if the ROC channel changed */
1427         if (channel == mvmvif->phy_ctxt->channel)
1428                 goto schedule_time_event;
1429
1430         cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
1431
1432         /*
1433          * Change the PHY context configuration as it is currently referenced
1434          * only by the P2P Device MAC
1435          */
1436         if (mvmvif->phy_ctxt->ref == 1) {
1437                 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
1438                                                &chandef, 1, 1);
1439                 if (ret)
1440                         goto out_unlock;
1441         } else {
1442                 /*
1443                  * The PHY context is shared with other MACs. Need to remove the
1444                  * P2P Device from the binding, allocate an new PHY context and
1445                  * create a new binding
1446                  */
1447                 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1448                 if (!phy_ctxt) {
1449                         ret = -ENOSPC;
1450                         goto out_unlock;
1451                 }
1452
1453                 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
1454                                                1, 1);
1455                 if (ret) {
1456                         IWL_ERR(mvm, "Failed to change PHY context\n");
1457                         goto out_unlock;
1458                 }
1459
1460                 /* Unbind the P2P_DEVICE from the current PHY context */
1461                 ret = iwl_mvm_binding_remove_vif(mvm, vif);
1462                 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1463                         goto out_unlock;
1464
1465                 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1466
1467                 /* Bind the P2P_DEVICE to the new allocated PHY context */
1468                 mvmvif->phy_ctxt = phy_ctxt;
1469
1470                 ret = iwl_mvm_binding_add_vif(mvm, vif);
1471                 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1472                         goto out_unlock;
1473
1474                 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1475         }
1476
1477 schedule_time_event:
1478         /* Schedule the time events */
1479         ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
1480
1481 out_unlock:
1482         mutex_unlock(&mvm->mutex);
1483         IWL_DEBUG_MAC80211(mvm, "leave\n");
1484         return ret;
1485 }
1486
1487 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
1488 {
1489         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1490
1491         IWL_DEBUG_MAC80211(mvm, "enter\n");
1492
1493         mutex_lock(&mvm->mutex);
1494         iwl_mvm_stop_p2p_roc(mvm);
1495         mutex_unlock(&mvm->mutex);
1496
1497         IWL_DEBUG_MAC80211(mvm, "leave\n");
1498         return 0;
1499 }
1500
1501 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
1502                                struct ieee80211_chanctx_conf *ctx)
1503 {
1504         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1505         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
1506         struct iwl_mvm_phy_ctxt *phy_ctxt;
1507         int ret;
1508
1509         IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
1510
1511         mutex_lock(&mvm->mutex);
1512         phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1513         if (!phy_ctxt) {
1514                 ret = -ENOSPC;
1515                 goto out;
1516         }
1517
1518         ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def,
1519                                        ctx->rx_chains_static,
1520                                        ctx->rx_chains_dynamic);
1521         if (ret) {
1522                 IWL_ERR(mvm, "Failed to add PHY context\n");
1523                 goto out;
1524         }
1525
1526         iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
1527         *phy_ctxt_id = phy_ctxt->id;
1528 out:
1529         mutex_unlock(&mvm->mutex);
1530         return ret;
1531 }
1532
1533 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
1534                                    struct ieee80211_chanctx_conf *ctx)
1535 {
1536         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1537         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
1538         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
1539
1540         mutex_lock(&mvm->mutex);
1541         iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
1542         mutex_unlock(&mvm->mutex);
1543 }
1544
1545 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
1546                                    struct ieee80211_chanctx_conf *ctx,
1547                                    u32 changed)
1548 {
1549         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1550         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
1551         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
1552
1553         if (WARN_ONCE((phy_ctxt->ref > 1) &&
1554                       (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
1555                                    IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
1556                                    IEEE80211_CHANCTX_CHANGE_RADAR)),
1557                       "Cannot change PHY. Ref=%d, changed=0x%X\n",
1558                       phy_ctxt->ref, changed))
1559                 return;
1560
1561         mutex_lock(&mvm->mutex);
1562         iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def,
1563                                  ctx->rx_chains_static,
1564                                  ctx->rx_chains_dynamic);
1565         iwl_mvm_bt_coex_vif_change(mvm);
1566         mutex_unlock(&mvm->mutex);
1567 }
1568
1569 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
1570                                       struct ieee80211_vif *vif,
1571                                       struct ieee80211_chanctx_conf *ctx)
1572 {
1573         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1574         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
1575         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
1576         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1577         int ret;
1578
1579         mutex_lock(&mvm->mutex);
1580
1581         mvmvif->phy_ctxt = phy_ctxt;
1582
1583         switch (vif->type) {
1584         case NL80211_IFTYPE_AP:
1585         case NL80211_IFTYPE_ADHOC:
1586                 /*
1587                  * The AP binding flow is handled as part of the start_ap flow
1588                  * (in bss_info_changed), similarly for IBSS.
1589                  */
1590                 ret = 0;
1591                 goto out_unlock;
1592         case NL80211_IFTYPE_STATION:
1593         case NL80211_IFTYPE_MONITOR:
1594                 break;
1595         default:
1596                 ret = -EINVAL;
1597                 goto out_unlock;
1598         }
1599
1600         ret = iwl_mvm_binding_add_vif(mvm, vif);
1601         if (ret)
1602                 goto out_unlock;
1603
1604         /*
1605          * Setting the quota at this stage is only required for monitor
1606          * interfaces. For the other types, the bss_info changed flow
1607          * will handle quota settings.
1608          */
1609         if (vif->type == NL80211_IFTYPE_MONITOR) {
1610                 mvmvif->monitor_active = true;
1611                 ret = iwl_mvm_update_quotas(mvm, vif);
1612                 if (ret)
1613                         goto out_remove_binding;
1614         }
1615
1616         goto out_unlock;
1617
1618  out_remove_binding:
1619         iwl_mvm_binding_remove_vif(mvm, vif);
1620  out_unlock:
1621         mutex_unlock(&mvm->mutex);
1622         if (ret)
1623                 mvmvif->phy_ctxt = NULL;
1624         return ret;
1625 }
1626
1627 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
1628                                          struct ieee80211_vif *vif,
1629                                          struct ieee80211_chanctx_conf *ctx)
1630 {
1631         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1632         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1633
1634         mutex_lock(&mvm->mutex);
1635
1636         iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
1637
1638         switch (vif->type) {
1639         case NL80211_IFTYPE_AP:
1640         case NL80211_IFTYPE_ADHOC:
1641                 goto out_unlock;
1642         case NL80211_IFTYPE_MONITOR:
1643                 mvmvif->monitor_active = false;
1644                 iwl_mvm_update_quotas(mvm, NULL);
1645                 break;
1646         default:
1647                 break;
1648         }
1649
1650         iwl_mvm_binding_remove_vif(mvm, vif);
1651 out_unlock:
1652         mvmvif->phy_ctxt = NULL;
1653         mutex_unlock(&mvm->mutex);
1654 }
1655
1656 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
1657                            struct ieee80211_sta *sta,
1658                            bool set)
1659 {
1660         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1661         struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1662
1663         if (!mvm_sta || !mvm_sta->vif) {
1664                 IWL_ERR(mvm, "Station is not associated to a vif\n");
1665                 return -EINVAL;
1666         }
1667
1668         return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
1669 }
1670
1671 #ifdef CONFIG_NL80211_TESTMODE
1672 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
1673         [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
1674         [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
1675         [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
1676 };
1677
1678 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
1679                                       struct ieee80211_vif *vif,
1680                                       void *data, int len)
1681 {
1682         struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
1683         int err;
1684         u32 noa_duration;
1685
1686         err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
1687         if (err)
1688                 return err;
1689
1690         if (!tb[IWL_MVM_TM_ATTR_CMD])
1691                 return -EINVAL;
1692
1693         switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
1694         case IWL_MVM_TM_CMD_SET_NOA:
1695                 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
1696                     !vif->bss_conf.enable_beacon ||
1697                     !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
1698                         return -EINVAL;
1699
1700                 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
1701                 if (noa_duration >= vif->bss_conf.beacon_int)
1702                         return -EINVAL;
1703
1704                 mvm->noa_duration = noa_duration;
1705                 mvm->noa_vif = vif;
1706
1707                 return iwl_mvm_update_quotas(mvm, NULL);
1708         case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
1709                 /* must be associated client vif - ignore authorized */
1710                 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
1711                     !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
1712                     !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
1713                         return -EINVAL;
1714
1715                 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
1716                         return iwl_mvm_enable_beacon_filter(mvm, vif);
1717                 return iwl_mvm_disable_beacon_filter(mvm, vif);
1718         }
1719
1720         return -EOPNOTSUPP;
1721 }
1722
1723 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
1724                                     struct ieee80211_vif *vif,
1725                                     void *data, int len)
1726 {
1727         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1728         int err;
1729
1730         mutex_lock(&mvm->mutex);
1731         err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
1732         mutex_unlock(&mvm->mutex);
1733
1734         return err;
1735 }
1736 #endif
1737
1738 struct ieee80211_ops iwl_mvm_hw_ops = {
1739         .tx = iwl_mvm_mac_tx,
1740         .ampdu_action = iwl_mvm_mac_ampdu_action,
1741         .start = iwl_mvm_mac_start,
1742         .restart_complete = iwl_mvm_mac_restart_complete,
1743         .stop = iwl_mvm_mac_stop,
1744         .add_interface = iwl_mvm_mac_add_interface,
1745         .remove_interface = iwl_mvm_mac_remove_interface,
1746         .config = iwl_mvm_mac_config,
1747         .configure_filter = iwl_mvm_configure_filter,
1748         .bss_info_changed = iwl_mvm_bss_info_changed,
1749         .hw_scan = iwl_mvm_mac_hw_scan,
1750         .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1751         .sta_state = iwl_mvm_mac_sta_state,
1752         .sta_notify = iwl_mvm_mac_sta_notify,
1753         .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
1754         .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1755         .conf_tx = iwl_mvm_mac_conf_tx,
1756         .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
1757         .sched_scan_start = iwl_mvm_mac_sched_scan_start,
1758         .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
1759         .set_key = iwl_mvm_mac_set_key,
1760         .update_tkip_key = iwl_mvm_mac_update_tkip_key,
1761         .remain_on_channel = iwl_mvm_roc,
1762         .cancel_remain_on_channel = iwl_mvm_cancel_roc,
1763         .add_chanctx = iwl_mvm_add_chanctx,
1764         .remove_chanctx = iwl_mvm_remove_chanctx,
1765         .change_chanctx = iwl_mvm_change_chanctx,
1766         .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
1767         .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
1768
1769         .start_ap = iwl_mvm_start_ap_ibss,
1770         .stop_ap = iwl_mvm_stop_ap_ibss,
1771         .join_ibss = iwl_mvm_start_ap_ibss,
1772         .leave_ibss = iwl_mvm_stop_ap_ibss,
1773
1774         .set_tim = iwl_mvm_set_tim,
1775
1776         CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
1777
1778 #ifdef CONFIG_PM_SLEEP
1779         /* look at d3.c */
1780         .suspend = iwl_mvm_suspend,
1781         .resume = iwl_mvm_resume,
1782         .set_wakeup = iwl_mvm_set_wakeup,
1783         .set_rekey_data = iwl_mvm_set_rekey_data,
1784 #if IS_ENABLED(CONFIG_IPV6)
1785         .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
1786 #endif
1787         .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
1788 #endif
1789 };