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.
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   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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  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
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  20  * along with this program; if not, write to the Free Software
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  32  *
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  44  *    the documentation and/or other materials provided with the
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  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 <linux/if_arp.h>
  70 #include <net/mac80211.h>
  71 #include <net/tcp.h>
  72
  73 #include "iwl-op-mode.h"
  74 #include "iwl-io.h"
  75 #include "mvm.h"
  76 #include "sta.h"
  77 #include "time-event.h"
  78 #include "iwl-eeprom-parse.h"
  79 #include "fw-api-scan.h"
  80 #include "iwl-phy-db.h"
  81 #include "testmode.h"
  82
  83 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
  84         {
  85                 .max = 1,
  86                 .types = BIT(NL80211_IFTYPE_STATION),
  87         },
  88         {
  89                 .max = 1,
  90                 .types = BIT(NL80211_IFTYPE_AP) |
  91                         BIT(NL80211_IFTYPE_P2P_CLIENT) |
  92                         BIT(NL80211_IFTYPE_P2P_GO),
  93         },
  94         {
  95                 .max = 1,
  96                 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
  97         },
  98 };
  99
 100 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
 101         {
 102                 .num_different_channels = 1,
 103                 .max_interfaces = 3,
 104                 .limits = iwl_mvm_limits,
 105                 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
 106         },
 107 };
 108
 109 #ifdef CONFIG_PM_SLEEP
 110 static const struct nl80211_wowlan_tcp_data_token_feature
 111 iwl_mvm_wowlan_tcp_token_feature = {
 112         .min_len = 0,
 113         .max_len = 255,
 114         .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
 115 };
 116
 117 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
 118         .tok = &iwl_mvm_wowlan_tcp_token_feature,
 119         .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
 120                             sizeof(struct ethhdr) -
 121                             sizeof(struct iphdr) -
 122                             sizeof(struct tcphdr),
 123         .data_interval_max = 65535, /* __le16 in API */
 124         .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
 125                             sizeof(struct ethhdr) -
 126                             sizeof(struct iphdr) -
 127                             sizeof(struct tcphdr),
 128         .seq = true,
 129 };
 130 #endif
 131
 132 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 133 /*
 134  * Use the reserved field to indicate magic values.
 135  * these values will only be used internally by the driver,
 136  * and won't make it to the fw (reserved will be 0).
 137  * BC_FILTER_MAGIC_IP - configure the val of this attribute to
 138  *      be the vif's ip address. in case there is not a single
 139  *      ip address (0, or more than 1), this attribute will
 140  *      be skipped.
 141  * BC_FILTER_MAGIC_MAC - set the val of this attribute to
 142  *      the LSB bytes of the vif's mac address
 143  */
 144 enum {
 145         BC_FILTER_MAGIC_NONE = 0,
 146         BC_FILTER_MAGIC_IP,
 147         BC_FILTER_MAGIC_MAC,
 148 };
 149
 150 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
 151         {
 152                 /* arp */
 153                 .discard = 0,
 154                 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
 155                 .attrs = {
 156                         {
 157                                 /* frame type - arp, hw type - ethernet */
 158                                 .offset_type =
 159                                         BCAST_FILTER_OFFSET_PAYLOAD_START,
 160                                 .offset = sizeof(rfc1042_header),
 161                                 .val = cpu_to_be32(0x08060001),
 162                                 .mask = cpu_to_be32(0xffffffff),
 163                         },
 164                         {
 165                                 /* arp dest ip */
 166                                 .offset_type =
 167                                         BCAST_FILTER_OFFSET_PAYLOAD_START,
 168                                 .offset = sizeof(rfc1042_header) + 2 +
 169                                           sizeof(struct arphdr) +
 170                                           ETH_ALEN + sizeof(__be32) +
 171                                           ETH_ALEN,
 172                                 .mask = cpu_to_be32(0xffffffff),
 173                                 /* mark it as special field */
 174                                 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
 175                         },
 176                 },
 177         },
 178         {
 179                 /* dhcp offer bcast */
 180                 .discard = 0,
 181                 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
 182                 .attrs = {
 183                         {
 184                                 /* udp dest port - 68 (bootp client)*/
 185                                 .offset_type = BCAST_FILTER_OFFSET_IP_END,
 186                                 .offset = offsetof(struct udphdr, dest),
 187                                 .val = cpu_to_be32(0x00440000),
 188                                 .mask = cpu_to_be32(0xffff0000),
 189                         },
 190                         {
 191                                 /* dhcp - lsb bytes of client hw address */
 192                                 .offset_type = BCAST_FILTER_OFFSET_IP_END,
 193                                 .offset = 38,
 194                                 .mask = cpu_to_be32(0xffffffff),
 195                                 /* mark it as special field */
 196                                 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
 197                         },
 198                 },
 199         },
 200         /* last filter must be empty */
 201         {},
 202 };
 203 #endif
 204
 205 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
 206 {
 207         if (!mvm->trans->cfg->d0i3)
 208                 return;
 209
 210         IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
 211         WARN_ON(test_and_set_bit(ref_type, mvm->ref_bitmap));
 212         iwl_trans_ref(mvm->trans);
 213 }
 214
 215 void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
 216 {
 217         if (!mvm->trans->cfg->d0i3)
 218                 return;
 219
 220         IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
 221         WARN_ON(!test_and_clear_bit(ref_type, mvm->ref_bitmap));
 222         iwl_trans_unref(mvm->trans);
 223 }
 224
 225 static void
 226 iwl_mvm_unref_all_except(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref)
 227 {
 228         int i;
 229
 230         if (!mvm->trans->cfg->d0i3)
 231                 return;
 232
 233         for_each_set_bit(i, mvm->ref_bitmap, IWL_MVM_REF_COUNT) {
 234                 if (ref == i)
 235                         continue;
 236
 237                 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d\n", i);
 238                 clear_bit(i, mvm->ref_bitmap);
 239                 iwl_trans_unref(mvm->trans);
 240         }
 241 }
 242
 243 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
 244 {
 245         int i;
 246
 247         memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
 248         for (i = 0; i < NUM_PHY_CTX; i++) {
 249                 mvm->phy_ctxts[i].id = i;
 250                 mvm->phy_ctxts[i].ref = 0;
 251         }
 252 }
 253
 254 static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm)
 255 {
 256         /* we create the 802.11 header and SSID element */
 257         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID)
 258                 return mvm->fw->ucode_capa.max_probe_length - 24 - 2;
 259         return mvm->fw->ucode_capa.max_probe_length - 24 - 34;
 260 }
 261
 262 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 263 {
 264         struct ieee80211_hw *hw = mvm->hw;
 265         int num_mac, ret, i;
 266
 267         /* Tell mac80211 our characteristics */
 268         hw->flags = IEEE80211_HW_SIGNAL_DBM |
 269                     IEEE80211_HW_SPECTRUM_MGMT |
 270                     IEEE80211_HW_REPORTS_TX_ACK_STATUS |
 271                     IEEE80211_HW_QUEUE_CONTROL |
 272                     IEEE80211_HW_WANT_MONITOR_VIF |
 273                     IEEE80211_HW_SUPPORTS_PS |
 274                     IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
 275                     IEEE80211_HW_AMPDU_AGGREGATION |
 276                     IEEE80211_HW_TIMING_BEACON_ONLY |
 277                     IEEE80211_HW_CONNECTION_MONITOR |
 278                     IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
 279                     IEEE80211_HW_SUPPORTS_STATIC_SMPS;
 280
 281         hw->queues = mvm->first_agg_queue;
 282         hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
 283         hw->rate_control_algorithm = "iwl-mvm-rs";
 284
 285         /*
 286          * Enable 11w if advertised by firmware and software crypto
 287          * is not enabled (as the firmware will interpret some mgmt
 288          * packets, so enabling it with software crypto isn't safe)
 289          */
 290         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
 291             !iwlwifi_mod_params.sw_crypto)
 292                 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
 293
 294         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT) {
 295                 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
 296                 hw->uapsd_queues = IWL_UAPSD_AC_INFO;
 297                 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
 298         }
 299
 300         hw->sta_data_size = sizeof(struct iwl_mvm_sta);
 301         hw->vif_data_size = sizeof(struct iwl_mvm_vif);
 302         hw->chanctx_data_size = sizeof(u16);
 303
 304         hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
 305                 BIT(NL80211_IFTYPE_P2P_CLIENT) |
 306                 BIT(NL80211_IFTYPE_AP) |
 307                 BIT(NL80211_IFTYPE_P2P_GO) |
 308                 BIT(NL80211_IFTYPE_P2P_DEVICE);
 309
 310         /* IBSS has bugs in older versions */
 311         if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 8)
 312                 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
 313
 314         hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 315         hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
 316                                        REGULATORY_DISABLE_BEACON_HINTS;
 317
 318         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
 319                 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
 320
 321         hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
 322         hw->wiphy->n_iface_combinations =
 323                 ARRAY_SIZE(iwl_mvm_iface_combinations);
 324
 325         hw->wiphy->max_remain_on_channel_duration = 10000;
 326         hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
 327
 328         /* Extract MAC address */
 329         memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
 330         hw->wiphy->addresses = mvm->addresses;
 331         hw->wiphy->n_addresses = 1;
 332
 333         /* Extract additional MAC addresses if available */
 334         num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
 335                 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
 336
 337         for (i = 1; i < num_mac; i++) {
 338                 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
 339                        ETH_ALEN);
 340                 mvm->addresses[i].addr[5]++;
 341                 hw->wiphy->n_addresses++;
 342         }
 343
 344         iwl_mvm_reset_phy_ctxts(mvm);
 345
 346         hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
 347
 348         hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
 349
 350         if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
 351                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
 352                         &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
 353         if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
 354                 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 355                         &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
 356
 357         hw->wiphy->hw_version = mvm->trans->hw_id;
 358
 359         if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
 360                 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
 361         else
 362                 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 363
 364         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SCHED_SCAN) {
 365                 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
 366                 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
 367                 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
 368                 /* we create the 802.11 header and zero length SSID IE. */
 369                 hw->wiphy->max_sched_scan_ie_len =
 370                                         SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
 371         }
 372
 373         hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
 374                                NL80211_FEATURE_P2P_GO_OPPPS |
 375                                NL80211_FEATURE_LOW_PRIORITY_SCAN;
 376
 377         mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
 378
 379         /* currently FW API supports only one optional cipher scheme */
 380         if (mvm->fw->cs[0].cipher) {
 381                 mvm->hw->n_cipher_schemes = 1;
 382                 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
 383         }
 384
 385 #ifdef CONFIG_PM_SLEEP
 386         if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
 387             mvm->trans->ops->d3_suspend &&
 388             mvm->trans->ops->d3_resume &&
 389             device_can_wakeup(mvm->trans->dev)) {
 390                 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
 391                                     WIPHY_WOWLAN_DISCONNECT |
 392                                     WIPHY_WOWLAN_EAP_IDENTITY_REQ |
 393                                     WIPHY_WOWLAN_RFKILL_RELEASE;
 394                 if (!iwlwifi_mod_params.sw_crypto)
 395                         mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
 396                                              WIPHY_WOWLAN_GTK_REKEY_FAILURE |
 397                                              WIPHY_WOWLAN_4WAY_HANDSHAKE;
 398
 399                 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
 400                 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
 401                 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
 402                 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
 403                 hw->wiphy->wowlan = &mvm->wowlan;
 404         }
 405 #endif
 406
 407 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 408         /* assign default bcast filtering configuration */
 409         mvm->bcast_filters = iwl_mvm_default_bcast_filters;
 410 #endif
 411
 412         ret = iwl_mvm_leds_init(mvm);
 413         if (ret)
 414                 return ret;
 415
 416         ret = ieee80211_register_hw(mvm->hw);
 417         if (ret)
 418                 iwl_mvm_leds_exit(mvm);
 419
 420         return ret;
 421 }
 422
 423 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
 424                            struct ieee80211_tx_control *control,
 425                            struct sk_buff *skb)
 426 {
 427         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 428         struct ieee80211_sta *sta = control->sta;
 429         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 430         struct ieee80211_hdr *hdr = (void *)skb->data;
 431
 432         if (iwl_mvm_is_radio_killed(mvm)) {
 433                 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
 434                 goto drop;
 435         }
 436
 437         if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
 438             !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
 439                 goto drop;
 440
 441         /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
 442         if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
 443                      ieee80211_is_mgmt(hdr->frame_control) &&
 444                      !ieee80211_is_deauth(hdr->frame_control) &&
 445                      !ieee80211_is_disassoc(hdr->frame_control) &&
 446                      !ieee80211_is_action(hdr->frame_control)))
 447                 sta = NULL;
 448
 449         if (sta) {
 450                 if (iwl_mvm_tx_skb(mvm, skb, sta))
 451                         goto drop;
 452                 return;
 453         }
 454
 455         if (iwl_mvm_tx_skb_non_sta(mvm, skb))
 456                 goto drop;
 457         return;
 458  drop:
 459         ieee80211_free_txskb(hw, skb);
 460 }
 461
 462 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
 463                                     struct ieee80211_vif *vif,
 464                                     enum ieee80211_ampdu_mlme_action action,
 465                                     struct ieee80211_sta *sta, u16 tid,
 466                                     u16 *ssn, u8 buf_size)
 467 {
 468         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 469         int ret;
 470
 471         IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
 472                      sta->addr, tid, action);
 473
 474         if (!(mvm->nvm_data->sku_cap_11n_enable))
 475                 return -EACCES;
 476
 477         mutex_lock(&mvm->mutex);
 478
 479         switch (action) {
 480         case IEEE80211_AMPDU_RX_START:
 481                 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) {
 482                         ret = -EINVAL;
 483                         break;
 484                 }
 485                 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
 486                 break;
 487         case IEEE80211_AMPDU_RX_STOP:
 488                 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
 489                 break;
 490         case IEEE80211_AMPDU_TX_START:
 491                 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) {
 492                         ret = -EINVAL;
 493                         break;
 494                 }
 495                 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
 496                 break;
 497         case IEEE80211_AMPDU_TX_STOP_CONT:
 498                 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
 499                 break;
 500         case IEEE80211_AMPDU_TX_STOP_FLUSH:
 501         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 502                 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
 503                 break;
 504         case IEEE80211_AMPDU_TX_OPERATIONAL:
 505                 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
 506                 break;
 507         default:
 508                 WARN_ON_ONCE(1);
 509                 ret = -EINVAL;
 510                 break;
 511         }
 512         mutex_unlock(&mvm->mutex);
 513
 514         return ret;
 515 }
 516
 517 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
 518                                      struct ieee80211_vif *vif)
 519 {
 520         struct iwl_mvm *mvm = data;
 521         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 522
 523         mvmvif->uploaded = false;
 524         mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
 525
 526         /* does this make sense at all? */
 527         mvmvif->color++;
 528
 529         spin_lock_bh(&mvm->time_event_lock);
 530         iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
 531         spin_unlock_bh(&mvm->time_event_lock);
 532
 533         mvmvif->phy_ctxt = NULL;
 534 }
 535
 536 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
 537 {
 538         iwl_trans_stop_device(mvm->trans);
 539
 540         mvm->scan_status = IWL_MVM_SCAN_NONE;
 541
 542         /* just in case one was running */
 543         ieee80211_remain_on_channel_expired(mvm->hw);
 544
 545         ieee80211_iterate_active_interfaces_atomic(
 546                 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
 547                 iwl_mvm_cleanup_iterator, mvm);
 548
 549         mvm->p2p_device_vif = NULL;
 550
 551         iwl_mvm_reset_phy_ctxts(mvm);
 552         memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
 553         memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
 554
 555         ieee80211_wake_queues(mvm->hw);
 556
 557         /* cleanup all stale references (scan, roc), but keep the
 558          * ucode_down ref until reconfig is complete */
 559         iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
 560
 561         mvm->vif_count = 0;
 562         mvm->rx_ba_sessions = 0;
 563 }
 564
 565 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
 566 {
 567         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 568         int ret;
 569
 570         mutex_lock(&mvm->mutex);
 571
 572         /* Clean up some internal and mac80211 state on restart */
 573         if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
 574                 iwl_mvm_restart_cleanup(mvm);
 575
 576         ret = iwl_mvm_up(mvm);
 577         mutex_unlock(&mvm->mutex);
 578
 579         return ret;
 580 }
 581
 582 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
 583 {
 584         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 585         int ret;
 586
 587         mutex_lock(&mvm->mutex);
 588
 589         clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
 590         ret = iwl_mvm_update_quotas(mvm, NULL);
 591         if (ret)
 592                 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
 593                         ret);
 594
 595         /* allow transport/FW low power modes */
 596         iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
 597
 598         mutex_unlock(&mvm->mutex);
 599 }
 600
 601 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
 602 {
 603         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 604
 605         flush_work(&mvm->async_handlers_wk);
 606
 607         mutex_lock(&mvm->mutex);
 608
 609         /* disallow low power states when the FW is down */
 610         iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
 611
 612         /* async_handlers_wk is now blocked */
 613
 614         /*
 615          * The work item could be running or queued if the
 616          * ROC time event stops just as we get here.
 617          */
 618         cancel_work_sync(&mvm->roc_done_wk);
 619
 620         iwl_trans_stop_device(mvm->trans);
 621
 622         iwl_mvm_async_handlers_purge(mvm);
 623         /* async_handlers_list is empty and will stay empty: HW is stopped */
 624
 625         /* the fw is stopped, the aux sta is dead: clean up driver state */
 626         iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
 627
 628         mutex_unlock(&mvm->mutex);
 629
 630         /*
 631          * The worker might have been waiting for the mutex, let it run and
 632          * discover that its list is now empty.
 633          */
 634         cancel_work_sync(&mvm->async_handlers_wk);
 635 }
 636
 637 static void iwl_mvm_power_update_iterator(void *data, u8 *mac,
 638                                           struct ieee80211_vif *vif)
 639 {
 640         struct iwl_mvm *mvm = data;
 641
 642         iwl_mvm_power_update_mode(mvm, vif);
 643 }
 644
 645 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
 646 {
 647         u16 i;
 648
 649         lockdep_assert_held(&mvm->mutex);
 650
 651         for (i = 0; i < NUM_PHY_CTX; i++)
 652                 if (!mvm->phy_ctxts[i].ref)
 653                         return &mvm->phy_ctxts[i];
 654
 655         IWL_ERR(mvm, "No available PHY context\n");
 656         return NULL;
 657 }
 658
 659 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 660                                 s8 tx_power)
 661 {
 662         /* FW is in charge of regulatory enforcement */
 663         struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
 664                 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
 665                 .pwr_restriction = cpu_to_le16(tx_power),
 666         };
 667
 668         return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, CMD_SYNC,
 669                                     sizeof(reduce_txpwr_cmd),
 670                                     &reduce_txpwr_cmd);
 671 }
 672
 673 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 674                                      struct ieee80211_vif *vif)
 675 {
 676         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 677         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 678         int ret;
 679
 680         /*
 681          * Not much to do here. The stack will not allow interface
 682          * types or combinations that we didn't advertise, so we
 683          * don't really have to check the types.
 684          */
 685
 686         mutex_lock(&mvm->mutex);
 687
 688         /* Allocate resources for the MAC context, and add it to the fw  */
 689         ret = iwl_mvm_mac_ctxt_init(mvm, vif);
 690         if (ret)
 691                 goto out_unlock;
 692
 693         /* Counting number of interfaces is needed for legacy PM */
 694         if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
 695                 mvm->vif_count++;
 696
 697         /*
 698          * The AP binding flow can be done only after the beacon
 699          * template is configured (which happens only in the mac80211
 700          * start_ap() flow), and adding the broadcast station can happen
 701          * only after the binding.
 702          * In addition, since modifying the MAC before adding a bcast
 703          * station is not allowed by the FW, delay the adding of MAC context to
 704          * the point where we can also add the bcast station.
 705          * In short: there's not much we can do at this point, other than
 706          * allocating resources :)
 707          */
 708         if (vif->type == NL80211_IFTYPE_AP ||
 709             vif->type == NL80211_IFTYPE_ADHOC) {
 710                 u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
 711                 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
 712                                                qmask);
 713                 if (ret) {
 714                         IWL_ERR(mvm, "Failed to allocate bcast sta\n");
 715                         goto out_release;
 716                 }
 717
 718                 iwl_mvm_vif_dbgfs_register(mvm, vif);
 719                 goto out_unlock;
 720         }
 721
 722         ret = iwl_mvm_mac_ctxt_add(mvm, vif);
 723         if (ret)
 724                 goto out_release;
 725
 726         iwl_mvm_power_disable(mvm, vif);
 727
 728         /* beacon filtering */
 729         ret = iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
 730         if (ret)
 731                 goto out_remove_mac;
 732
 733         if (!mvm->bf_allowed_vif &&
 734             vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
 735             mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED){
 736                 mvm->bf_allowed_vif = mvmvif;
 737                 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
 738                                      IEEE80211_VIF_SUPPORTS_CQM_RSSI;
 739         }
 740
 741         /*
 742          * P2P_DEVICE interface does not have a channel context assigned to it,
 743          * so a dedicated PHY context is allocated to it and the corresponding
 744          * MAC context is bound to it at this stage.
 745          */
 746         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 747
 748                 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
 749                 if (!mvmvif->phy_ctxt) {
 750                         ret = -ENOSPC;
 751                         goto out_free_bf;
 752                 }
 753
 754                 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
 755                 ret = iwl_mvm_binding_add_vif(mvm, vif);
 756                 if (ret)
 757                         goto out_unref_phy;
 758
 759                 ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
 760                 if (ret)
 761                         goto out_unbind;
 762
 763                 /* Save a pointer to p2p device vif, so it can later be used to
 764                  * update the p2p device MAC when a GO is started/stopped */
 765                 mvm->p2p_device_vif = vif;
 766         }
 767
 768         iwl_mvm_vif_dbgfs_register(mvm, vif);
 769         goto out_unlock;
 770
 771  out_unbind:
 772         iwl_mvm_binding_remove_vif(mvm, vif);
 773  out_unref_phy:
 774         iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
 775  out_free_bf:
 776         if (mvm->bf_allowed_vif == mvmvif) {
 777                 mvm->bf_allowed_vif = NULL;
 778                 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
 779                                        IEEE80211_VIF_SUPPORTS_CQM_RSSI);
 780         }
 781  out_remove_mac:
 782         mvmvif->phy_ctxt = NULL;
 783         iwl_mvm_mac_ctxt_remove(mvm, vif);
 784  out_release:
 785         if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
 786                 mvm->vif_count--;
 787
 788         /* TODO: remove this when legacy PM will be discarded */
 789         ieee80211_iterate_active_interfaces(
 790                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 791                 iwl_mvm_power_update_iterator, mvm);
 792
 793         iwl_mvm_mac_ctxt_release(mvm, vif);
 794  out_unlock:
 795         mutex_unlock(&mvm->mutex);
 796
 797         return ret;
 798 }
 799
 800 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
 801                                         struct ieee80211_vif *vif)
 802 {
 803         u32 tfd_msk = 0, ac;
 804
 805         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 806                 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
 807                         tfd_msk |= BIT(vif->hw_queue[ac]);
 808
 809         if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
 810                 tfd_msk |= BIT(vif->cab_queue);
 811
 812         if (tfd_msk) {
 813                 mutex_lock(&mvm->mutex);
 814                 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
 815                 mutex_unlock(&mvm->mutex);
 816         }
 817
 818         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 819                 /*
 820                  * Flush the ROC worker which will flush the OFFCHANNEL queue.
 821                  * We assume here that all the packets sent to the OFFCHANNEL
 822                  * queue are sent in ROC session.
 823                  */
 824                 flush_work(&mvm->roc_done_wk);
 825         } else {
 826                 /*
 827                  * By now, all the AC queues are empty. The AGG queues are
 828                  * empty too. We already got all the Tx responses for all the
 829                  * packets in the queues. The drain work can have been
 830                  * triggered. Flush it.
 831                  */
 832                 flush_work(&mvm->sta_drained_wk);
 833         }
 834 }
 835
 836 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
 837                                          struct ieee80211_vif *vif)
 838 {
 839         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 840         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 841
 842         iwl_mvm_prepare_mac_removal(mvm, vif);
 843
 844         mutex_lock(&mvm->mutex);
 845
 846         if (mvm->bf_allowed_vif == mvmvif) {
 847                 mvm->bf_allowed_vif = NULL;
 848                 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
 849                                        IEEE80211_VIF_SUPPORTS_CQM_RSSI);
 850         }
 851
 852         iwl_mvm_vif_dbgfs_clean(mvm, vif);
 853
 854         /*
 855          * For AP/GO interface, the tear down of the resources allocated to the
 856          * interface is be handled as part of the stop_ap flow.
 857          */
 858         if (vif->type == NL80211_IFTYPE_AP ||
 859             vif->type == NL80211_IFTYPE_ADHOC) {
 860 #ifdef CONFIG_NL80211_TESTMODE
 861                 if (vif == mvm->noa_vif) {
 862                         mvm->noa_vif = NULL;
 863                         mvm->noa_duration = 0;
 864                 }
 865 #endif
 866                 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
 867                 goto out_release;
 868         }
 869
 870         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 871                 mvm->p2p_device_vif = NULL;
 872                 iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
 873                 iwl_mvm_binding_remove_vif(mvm, vif);
 874                 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
 875                 mvmvif->phy_ctxt = NULL;
 876         }
 877
 878         if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
 879                 mvm->vif_count--;
 880
 881         /* TODO: remove this when legacy PM will be discarded */
 882         ieee80211_iterate_active_interfaces(
 883                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 884                 iwl_mvm_power_update_iterator, mvm);
 885
 886         iwl_mvm_mac_ctxt_remove(mvm, vif);
 887
 888 out_release:
 889         iwl_mvm_mac_ctxt_release(mvm, vif);
 890         mutex_unlock(&mvm->mutex);
 891 }
 892
 893 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
 894 {
 895         return 0;
 896 }
 897
 898 struct iwl_mvm_mc_iter_data {
 899         struct iwl_mvm *mvm;
 900         int port_id;
 901 };
 902
 903 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
 904                                       struct ieee80211_vif *vif)
 905 {
 906         struct iwl_mvm_mc_iter_data *data = _data;
 907         struct iwl_mvm *mvm = data->mvm;
 908         struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
 909         int ret, len;
 910
 911         /* if we don't have free ports, mcast frames will be dropped */
 912         if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
 913                 return;
 914
 915         if (vif->type != NL80211_IFTYPE_STATION ||
 916             !vif->bss_conf.assoc)
 917                 return;
 918
 919         cmd->port_id = data->port_id++;
 920         memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
 921         len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
 922
 923         ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, len, cmd);
 924         if (ret)
 925                 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
 926 }
 927
 928 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
 929 {
 930         struct iwl_mvm_mc_iter_data iter_data = {
 931                 .mvm = mvm,
 932         };
 933
 934         lockdep_assert_held(&mvm->mutex);
 935
 936         if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
 937                 return;
 938
 939         ieee80211_iterate_active_interfaces(
 940                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 941                 iwl_mvm_mc_iface_iterator, &iter_data);
 942 }
 943
 944 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
 945                                      struct netdev_hw_addr_list *mc_list)
 946 {
 947         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 948         struct iwl_mcast_filter_cmd *cmd;
 949         struct netdev_hw_addr *addr;
 950         int addr_count = netdev_hw_addr_list_count(mc_list);
 951         bool pass_all = false;
 952         int len;
 953
 954         if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) {
 955                 pass_all = true;
 956                 addr_count = 0;
 957         }
 958
 959         len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
 960         cmd = kzalloc(len, GFP_ATOMIC);
 961         if (!cmd)
 962                 return 0;
 963
 964         if (pass_all) {
 965                 cmd->pass_all = 1;
 966                 return (u64)(unsigned long)cmd;
 967         }
 968
 969         netdev_hw_addr_list_for_each(addr, mc_list) {
 970                 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
 971                                    cmd->count, addr->addr);
 972                 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
 973                        addr->addr, ETH_ALEN);
 974                 cmd->count++;
 975         }
 976
 977         return (u64)(unsigned long)cmd;
 978 }
 979
 980 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
 981                                      unsigned int changed_flags,
 982                                      unsigned int *total_flags,
 983                                      u64 multicast)
 984 {
 985         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 986         struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
 987
 988         mutex_lock(&mvm->mutex);
 989
 990         /* replace previous configuration */
 991         kfree(mvm->mcast_filter_cmd);
 992         mvm->mcast_filter_cmd = cmd;
 993
 994         if (!cmd)
 995                 goto out;
 996
 997         iwl_mvm_recalc_multicast(mvm);
 998 out:
 999         mutex_unlock(&mvm->mutex);
1000         *total_flags = 0;
1001 }
1002
1003 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1004 struct iwl_bcast_iter_data {
1005         struct iwl_mvm *mvm;
1006         struct iwl_bcast_filter_cmd *cmd;
1007         u8 current_filter;
1008 };
1009
1010 static void
1011 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1012                          const struct iwl_fw_bcast_filter *in_filter,
1013                          struct iwl_fw_bcast_filter *out_filter)
1014 {
1015         struct iwl_fw_bcast_filter_attr *attr;
1016         int i;
1017
1018         memcpy(out_filter, in_filter, sizeof(*out_filter));
1019
1020         for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1021                 attr = &out_filter->attrs[i];
1022
1023                 if (!attr->mask)
1024                         break;
1025
1026                 switch (attr->reserved1) {
1027                 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1028                         if (vif->bss_conf.arp_addr_cnt != 1) {
1029                                 attr->mask = 0;
1030                                 continue;
1031                         }
1032
1033                         attr->val = vif->bss_conf.arp_addr_list[0];
1034                         break;
1035                 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1036                         attr->val = *(__be32 *)&vif->addr[2];
1037                         break;
1038                 default:
1039                         break;
1040                 }
1041                 attr->reserved1 = 0;
1042                 out_filter->num_attrs++;
1043         }
1044 }
1045
1046 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1047                                           struct ieee80211_vif *vif)
1048 {
1049         struct iwl_bcast_iter_data *data = _data;
1050         struct iwl_mvm *mvm = data->mvm;
1051         struct iwl_bcast_filter_cmd *cmd = data->cmd;
1052         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1053         struct iwl_fw_bcast_mac *bcast_mac;
1054         int i;
1055
1056         if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1057                 return;
1058
1059         bcast_mac = &cmd->macs[mvmvif->id];
1060
1061         /* enable filtering only for associated stations */
1062         if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc)
1063                 return;
1064
1065         bcast_mac->default_discard = 1;
1066
1067         /* copy all configured filters */
1068         for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1069                 /*
1070                  * Make sure we don't exceed our filters limit.
1071                  * if there is still a valid filter to be configured,
1072                  * be on the safe side and just allow bcast for this mac.
1073                  */
1074                 if (WARN_ON_ONCE(data->current_filter >=
1075                                  ARRAY_SIZE(cmd->filters))) {
1076                         bcast_mac->default_discard = 0;
1077                         bcast_mac->attached_filters = 0;
1078                         break;
1079                 }
1080
1081                 iwl_mvm_set_bcast_filter(vif,
1082                                          &mvm->bcast_filters[i],
1083                                          &cmd->filters[data->current_filter]);
1084
1085                 /* skip current filter if it contains no attributes */
1086                 if (!cmd->filters[data->current_filter].num_attrs)
1087                         continue;
1088
1089                 /* attach the filter to current mac */
1090                 bcast_mac->attached_filters |=
1091                                 cpu_to_le16(BIT(data->current_filter));
1092
1093                 data->current_filter++;
1094         }
1095 }
1096
1097 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1098                                     struct iwl_bcast_filter_cmd *cmd)
1099 {
1100         struct iwl_bcast_iter_data iter_data = {
1101                 .mvm = mvm,
1102                 .cmd = cmd,
1103         };
1104
1105         memset(cmd, 0, sizeof(*cmd));
1106         cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1107         cmd->max_macs = ARRAY_SIZE(cmd->macs);
1108
1109 #ifdef CONFIG_IWLWIFI_DEBUGFS
1110         /* use debugfs filters/macs if override is configured */
1111         if (mvm->dbgfs_bcast_filtering.override) {
1112                 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1113                        sizeof(cmd->filters));
1114                 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1115                        sizeof(cmd->macs));
1116                 return true;
1117         }
1118 #endif
1119
1120         /* if no filters are configured, do nothing */
1121         if (!mvm->bcast_filters)
1122                 return false;
1123
1124         /* configure and attach these filters for each associated sta vif */
1125         ieee80211_iterate_active_interfaces(
1126                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1127                 iwl_mvm_bcast_filter_iterator, &iter_data);
1128
1129         return true;
1130 }
1131 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1132                                           struct ieee80211_vif *vif)
1133 {
1134         struct iwl_bcast_filter_cmd cmd;
1135
1136         if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1137                 return 0;
1138
1139         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1140                 return 0;
1141
1142         return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC,
1143                                     sizeof(cmd), &cmd);
1144 }
1145 #else
1146 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1147                                                  struct ieee80211_vif *vif)
1148 {
1149         return 0;
1150 }
1151 #endif
1152
1153 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1154                                              struct ieee80211_vif *vif,
1155                                              struct ieee80211_bss_conf *bss_conf,
1156                                              u32 changes)
1157 {
1158         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1159         int ret;
1160
1161         /*
1162          * Re-calculate the tsf id, as the master-slave relations depend on the
1163          * beacon interval, which was not known when the station interface was
1164          * added.
1165          */
1166         if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1167                 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1168
1169         ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1170         if (ret)
1171                 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1172
1173         if (changes & BSS_CHANGED_ASSOC) {
1174                 if (bss_conf->assoc) {
1175                         /* add quota for this interface */
1176                         ret = iwl_mvm_update_quotas(mvm, vif);
1177                         if (ret) {
1178                                 IWL_ERR(mvm, "failed to update quotas\n");
1179                                 return;
1180                         }
1181
1182                         if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1183                                      &mvm->status)) {
1184                                 /*
1185                                  * If we're restarting then the firmware will
1186                                  * obviously have lost synchronisation with
1187                                  * the AP. It will attempt to synchronise by
1188                                  * itself, but we can make it more reliable by
1189                                  * scheduling a session protection time event.
1190                                  *
1191                                  * The firmware needs to receive a beacon to
1192                                  * catch up with synchronisation, use 110% of
1193                                  * the beacon interval.
1194                                  *
1195                                  * Set a large maximum delay to allow for more
1196                                  * than a single interface.
1197                                  */
1198                                 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1199                                 iwl_mvm_protect_session(mvm, vif, dur, dur,
1200                                                         5 * dur);
1201                         }
1202
1203                         iwl_mvm_sf_update(mvm, vif, false);
1204                         iwl_mvm_power_vif_assoc(mvm, vif);
1205                 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1206                         /*
1207                          * If update fails - SF might be running in associated
1208                          * mode while disassociated - which is forbidden.
1209                          */
1210                         WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1211                                   "Failed to update SF upon disassociation\n");
1212
1213                         /* remove AP station now that the MAC is unassoc */
1214                         ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1215                         if (ret)
1216                                 IWL_ERR(mvm, "failed to remove AP station\n");
1217                         mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1218                         /* remove quota for this interface */
1219                         ret = iwl_mvm_update_quotas(mvm, NULL);
1220                         if (ret)
1221                                 IWL_ERR(mvm, "failed to update quotas\n");
1222                 }
1223
1224                 iwl_mvm_recalc_multicast(mvm);
1225                 iwl_mvm_configure_bcast_filter(mvm, vif);
1226
1227                 /* reset rssi values */
1228                 mvmvif->bf_data.ave_beacon_signal = 0;
1229
1230                 if (!(mvm->fw->ucode_capa.flags &
1231                                         IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT)) {
1232                         /* Workaround for FW bug, otherwise FW disables device
1233                          * power save upon disassociation
1234                          */
1235                         ret = iwl_mvm_power_update_mode(mvm, vif);
1236                         if (ret)
1237                                 IWL_ERR(mvm, "failed to update power mode\n");
1238                 }
1239                 iwl_mvm_bt_coex_vif_change(mvm);
1240                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1241                                     IEEE80211_SMPS_AUTOMATIC);
1242         } else if (changes & BSS_CHANGED_BEACON_INFO) {
1243                 /*
1244                  * We received a beacon _after_ association so
1245                  * remove the session protection.
1246                  */
1247                 iwl_mvm_remove_time_event(mvm, mvmvif,
1248                                           &mvmvif->time_event_data);
1249         } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS |
1250                               BSS_CHANGED_QOS)) {
1251                 ret = iwl_mvm_power_update_mode(mvm, vif);
1252                 if (ret)
1253                         IWL_ERR(mvm, "failed to update power mode\n");
1254         }
1255         if (changes & BSS_CHANGED_TXPOWER) {
1256                 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1257                                 bss_conf->txpower);
1258                 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1259         }
1260
1261         if (changes & BSS_CHANGED_CQM) {
1262                 IWL_DEBUG_MAC80211(mvm, "cqm info_changed");
1263                 /* reset cqm events tracking */
1264                 mvmvif->bf_data.last_cqm_event = 0;
1265                 ret = iwl_mvm_update_beacon_filter(mvm, vif, false, CMD_SYNC);
1266                 if (ret)
1267                         IWL_ERR(mvm, "failed to update CQM thresholds\n");
1268         }
1269
1270         if (changes & BSS_CHANGED_ARP_FILTER) {
1271                 IWL_DEBUG_MAC80211(mvm, "arp filter changed");
1272                 iwl_mvm_configure_bcast_filter(mvm, vif);
1273         }
1274 }
1275
1276 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1277                                  struct ieee80211_vif *vif)
1278 {
1279         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1280         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1281         int ret;
1282
1283         mutex_lock(&mvm->mutex);
1284
1285         /* Send the beacon template */
1286         ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1287         if (ret)
1288                 goto out_unlock;
1289
1290         /*
1291          * Re-calculate the tsf id, as the master-slave relations depend on the
1292          * beacon interval, which was not known when the AP interface was added.
1293          */
1294         if (vif->type == NL80211_IFTYPE_AP)
1295                 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1296
1297         /* Add the mac context */
1298         ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1299         if (ret)
1300                 goto out_unlock;
1301
1302         /* Perform the binding */
1303         ret = iwl_mvm_binding_add_vif(mvm, vif);
1304         if (ret)
1305                 goto out_remove;
1306
1307         mvmvif->ap_ibss_active = true;
1308
1309         /* Send the bcast station. At this stage the TBTT and DTIM time events
1310          * are added and applied to the scheduler */
1311         ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
1312         if (ret)
1313                 goto out_unbind;
1314
1315         /* must be set before quota calculations */
1316         mvmvif->ap_ibss_active = true;
1317
1318         /* power updated needs to be done before quotas */
1319         mvm->bound_vif_cnt++;
1320         iwl_mvm_power_update_binding(mvm, vif, true);
1321
1322         ret = iwl_mvm_update_quotas(mvm, vif);
1323         if (ret)
1324                 goto out_quota_failed;
1325
1326         /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1327         if (vif->p2p && mvm->p2p_device_vif)
1328                 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1329
1330         iwl_mvm_bt_coex_vif_change(mvm);
1331
1332         mutex_unlock(&mvm->mutex);
1333         return 0;
1334
1335 out_quota_failed:
1336         mvm->bound_vif_cnt--;
1337         iwl_mvm_power_update_binding(mvm, vif, false);
1338         mvmvif->ap_ibss_active = false;
1339         iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1340 out_unbind:
1341         iwl_mvm_binding_remove_vif(mvm, vif);
1342 out_remove:
1343         iwl_mvm_mac_ctxt_remove(mvm, vif);
1344 out_unlock:
1345         mutex_unlock(&mvm->mutex);
1346         return ret;
1347 }
1348
1349 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1350                                  struct ieee80211_vif *vif)
1351 {
1352         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1353         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1354
1355         iwl_mvm_prepare_mac_removal(mvm, vif);
1356
1357         mutex_lock(&mvm->mutex);
1358
1359         mvmvif->ap_ibss_active = false;
1360
1361         iwl_mvm_bt_coex_vif_change(mvm);
1362
1363         /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1364         if (vif->p2p && mvm->p2p_device_vif)
1365                 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1366
1367         iwl_mvm_update_quotas(mvm, NULL);
1368         iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1369         iwl_mvm_binding_remove_vif(mvm, vif);
1370
1371         mvm->bound_vif_cnt--;
1372         iwl_mvm_power_update_binding(mvm, vif, false);
1373
1374         iwl_mvm_mac_ctxt_remove(mvm, vif);
1375
1376         mutex_unlock(&mvm->mutex);
1377 }
1378
1379 static void
1380 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1381                                  struct ieee80211_vif *vif,
1382                                  struct ieee80211_bss_conf *bss_conf,
1383                                  u32 changes)
1384 {
1385         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1386         enum ieee80211_bss_change ht_change = BSS_CHANGED_ERP_CTS_PROT |
1387                                               BSS_CHANGED_HT |
1388                                               BSS_CHANGED_BANDWIDTH;
1389         int ret;
1390
1391         /* Changes will be applied when the AP/IBSS is started */
1392         if (!mvmvif->ap_ibss_active)
1393                 return;
1394
1395         if (changes & ht_change) {
1396                 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1397                 if (ret)
1398                         IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1399         }
1400
1401         /* Need to send a new beacon template to the FW */
1402         if (changes & BSS_CHANGED_BEACON) {
1403                 if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1404                         IWL_WARN(mvm, "Failed updating beacon data\n");
1405         }
1406 }
1407
1408 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1409                                      struct ieee80211_vif *vif,
1410                                      struct ieee80211_bss_conf *bss_conf,
1411                                      u32 changes)
1412 {
1413         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1414
1415         mutex_lock(&mvm->mutex);
1416
1417         switch (vif->type) {
1418         case NL80211_IFTYPE_STATION:
1419                 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1420                 break;
1421         case NL80211_IFTYPE_AP:
1422         case NL80211_IFTYPE_ADHOC:
1423                 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1424                 break;
1425         default:
1426                 /* shouldn't happen */
1427                 WARN_ON_ONCE(1);
1428         }
1429
1430         mutex_unlock(&mvm->mutex);
1431 }
1432
1433 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1434                                struct ieee80211_vif *vif,
1435                                struct cfg80211_scan_request *req)
1436 {
1437         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1438         int ret;
1439
1440         if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
1441                 return -EINVAL;
1442
1443         mutex_lock(&mvm->mutex);
1444
1445         if (mvm->scan_status == IWL_MVM_SCAN_NONE)
1446                 ret = iwl_mvm_scan_request(mvm, vif, req);
1447         else
1448                 ret = -EBUSY;
1449
1450         mutex_unlock(&mvm->mutex);
1451
1452         return ret;
1453 }
1454
1455 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1456                                        struct ieee80211_vif *vif)
1457 {
1458         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1459
1460         mutex_lock(&mvm->mutex);
1461
1462         iwl_mvm_cancel_scan(mvm);
1463
1464         mutex_unlock(&mvm->mutex);
1465 }
1466
1467 static void
1468 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1469                                   struct ieee80211_sta *sta, u16 tids,
1470                                   int num_frames,
1471                                   enum ieee80211_frame_release_type reason,
1472                                   bool more_data)
1473 {
1474         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1475
1476         /* Called when we need to transmit (a) frame(s) from mac80211 */
1477
1478         iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1479                                           tids, more_data, false);
1480 }
1481
1482 static void
1483 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1484                                     struct ieee80211_sta *sta, u16 tids,
1485                                     int num_frames,
1486                                     enum ieee80211_frame_release_type reason,
1487                                     bool more_data)
1488 {
1489         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1490
1491         /* Called when we need to transmit (a) frame(s) from agg queue */
1492
1493         iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1494                                           tids, more_data, true);
1495 }
1496
1497 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1498                                    struct ieee80211_vif *vif,
1499                                    enum sta_notify_cmd cmd,
1500                                    struct ieee80211_sta *sta)
1501 {
1502         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1503         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1504         int tid;
1505
1506         switch (cmd) {
1507         case STA_NOTIFY_SLEEP:
1508                 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
1509                         ieee80211_sta_block_awake(hw, sta, true);
1510                 spin_lock_bh(&mvmsta->lock);
1511                 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1512                         struct iwl_mvm_tid_data *tid_data;
1513
1514                         tid_data = &mvmsta->tid_data[tid];
1515                         if (tid_data->state != IWL_AGG_ON &&
1516                             tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
1517                                 continue;
1518                         if (iwl_mvm_tid_queued(tid_data) == 0)
1519                                 continue;
1520                         ieee80211_sta_set_buffered(sta, tid, true);
1521                 }
1522                 spin_unlock_bh(&mvmsta->lock);
1523                 /*
1524                  * The fw updates the STA to be asleep. Tx packets on the Tx
1525                  * queues to this station will not be transmitted. The fw will
1526                  * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1527                  */
1528                 break;
1529         case STA_NOTIFY_AWAKE:
1530                 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
1531                         break;
1532                 iwl_mvm_sta_modify_ps_wake(mvm, sta);
1533                 break;
1534         default:
1535                 break;
1536         }
1537 }
1538
1539 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
1540                                        struct ieee80211_vif *vif,
1541                                        struct ieee80211_sta *sta)
1542 {
1543         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1544         struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1545
1546         /*
1547          * This is called before mac80211 does RCU synchronisation,
1548          * so here we already invalidate our internal RCU-protected
1549          * station pointer. The rest of the code will thus no longer
1550          * be able to find the station this way, and we don't rely
1551          * on further RCU synchronisation after the sta_state()
1552          * callback deleted the station.
1553          */
1554         mutex_lock(&mvm->mutex);
1555         if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
1556                 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
1557                                    ERR_PTR(-ENOENT));
1558         mutex_unlock(&mvm->mutex);
1559 }
1560
1561 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1562                                  struct ieee80211_vif *vif,
1563                                  struct ieee80211_sta *sta,
1564                                  enum ieee80211_sta_state old_state,
1565                                  enum ieee80211_sta_state new_state)
1566 {
1567         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1568         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1569         int ret;
1570
1571         IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1572                            sta->addr, old_state, new_state);
1573
1574         /* this would be a mac80211 bug ... but don't crash */
1575         if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1576                 return -EINVAL;
1577
1578         /* if a STA is being removed, reuse its ID */
1579         flush_work(&mvm->sta_drained_wk);
1580
1581         mutex_lock(&mvm->mutex);
1582         if (old_state == IEEE80211_STA_NOTEXIST &&
1583             new_state == IEEE80211_STA_NONE) {
1584                 /*
1585                  * Firmware bug - it'll crash if the beacon interval is less
1586                  * than 16. We can't avoid connecting at all, so refuse the
1587                  * station state change, this will cause mac80211 to abandon
1588                  * attempts to connect to this AP, and eventually wpa_s will
1589                  * blacklist the AP...
1590                  */
1591                 if (vif->type == NL80211_IFTYPE_STATION &&
1592                     vif->bss_conf.beacon_int < 16) {
1593                         IWL_ERR(mvm,
1594                                 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1595                                 sta->addr, vif->bss_conf.beacon_int);
1596                         ret = -EINVAL;
1597                         goto out_unlock;
1598                 }
1599                 ret = iwl_mvm_add_sta(mvm, vif, sta);
1600         } else if (old_state == IEEE80211_STA_NONE &&
1601                    new_state == IEEE80211_STA_AUTH) {
1602                 ret = 0;
1603         } else if (old_state == IEEE80211_STA_AUTH &&
1604                    new_state == IEEE80211_STA_ASSOC) {
1605                 ret = iwl_mvm_update_sta(mvm, vif, sta);
1606                 if (ret == 0)
1607                         iwl_mvm_rs_rate_init(mvm, sta,
1608                                              mvmvif->phy_ctxt->channel->band,
1609                                              true);
1610         } else if (old_state == IEEE80211_STA_ASSOC &&
1611                    new_state == IEEE80211_STA_AUTHORIZED) {
1612                 /* enable beacon filtering */
1613                 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, CMD_SYNC));
1614                 ret = 0;
1615         } else if (old_state == IEEE80211_STA_AUTHORIZED &&
1616                    new_state == IEEE80211_STA_ASSOC) {
1617                 /* disable beacon filtering */
1618                 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC));
1619                 ret = 0;
1620         } else if (old_state == IEEE80211_STA_ASSOC &&
1621                    new_state == IEEE80211_STA_AUTH) {
1622                 ret = 0;
1623         } else if (old_state == IEEE80211_STA_AUTH &&
1624                    new_state == IEEE80211_STA_NONE) {
1625                 ret = 0;
1626         } else if (old_state == IEEE80211_STA_NONE &&
1627                    new_state == IEEE80211_STA_NOTEXIST) {
1628                 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1629         } else {
1630                 ret = -EIO;
1631         }
1632  out_unlock:
1633         mutex_unlock(&mvm->mutex);
1634
1635         return ret;
1636 }
1637
1638 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1639 {
1640         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1641
1642         mvm->rts_threshold = value;
1643
1644         return 0;
1645 }
1646
1647 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
1648                                   struct ieee80211_vif *vif,
1649                                   struct ieee80211_sta *sta, u32 changed)
1650 {
1651         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1652
1653         if (vif->type == NL80211_IFTYPE_STATION &&
1654             changed & IEEE80211_RC_NSS_CHANGED)
1655                 iwl_mvm_sf_update(mvm, vif, false);
1656 }
1657
1658 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
1659                                struct ieee80211_vif *vif, u16 ac,
1660                                const struct ieee80211_tx_queue_params *params)
1661 {
1662         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1663         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1664
1665         mvmvif->queue_params[ac] = *params;
1666
1667         /*
1668          * No need to update right away, we'll get BSS_CHANGED_QOS
1669          * The exception is P2P_DEVICE interface which needs immediate update.
1670          */
1671         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1672                 int ret;
1673
1674                 mutex_lock(&mvm->mutex);
1675                 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1676                 mutex_unlock(&mvm->mutex);
1677                 return ret;
1678         }
1679         return 0;
1680 }
1681
1682 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
1683                                       struct ieee80211_vif *vif)
1684 {
1685         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1686         u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
1687                            200 + vif->bss_conf.beacon_int);
1688         u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
1689                                100 + vif->bss_conf.beacon_int);
1690
1691         if (WARN_ON_ONCE(vif->bss_conf.assoc))
1692                 return;
1693
1694         mutex_lock(&mvm->mutex);
1695         /* Try really hard to protect the session and hear a beacon */
1696         iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500);
1697         mutex_unlock(&mvm->mutex);
1698 }
1699
1700 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
1701                                         struct ieee80211_vif *vif,
1702                                         struct cfg80211_sched_scan_request *req,
1703                                         struct ieee80211_sched_scan_ies *ies)
1704 {
1705         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1706         int ret;
1707
1708         mutex_lock(&mvm->mutex);
1709
1710         if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1711                 IWL_DEBUG_SCAN(mvm,
1712                                "SCHED SCAN request during internal scan - abort\n");
1713                 ret = -EBUSY;
1714                 goto out;
1715         }
1716
1717         mvm->scan_status = IWL_MVM_SCAN_SCHED;
1718
1719         ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
1720         if (ret)
1721                 goto err;
1722
1723         ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
1724         if (ret)
1725                 goto err;
1726
1727         ret = iwl_mvm_sched_scan_start(mvm, req);
1728         if (!ret)
1729                 goto out;
1730 err:
1731         mvm->scan_status = IWL_MVM_SCAN_NONE;
1732 out:
1733         mutex_unlock(&mvm->mutex);
1734         return ret;
1735 }
1736
1737 static void iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
1738                                         struct ieee80211_vif *vif)
1739 {
1740         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1741
1742         mutex_lock(&mvm->mutex);
1743         iwl_mvm_sched_scan_stop(mvm);
1744         mutex_unlock(&mvm->mutex);
1745 }
1746
1747 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
1748                                enum set_key_cmd cmd,
1749                                struct ieee80211_vif *vif,
1750                                struct ieee80211_sta *sta,
1751                                struct ieee80211_key_conf *key)
1752 {
1753         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1754         int ret;
1755
1756         if (iwlwifi_mod_params.sw_crypto) {
1757                 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
1758                 return -EOPNOTSUPP;
1759         }
1760
1761         switch (key->cipher) {
1762         case WLAN_CIPHER_SUITE_TKIP:
1763                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1764                 /* fall-through */
1765         case WLAN_CIPHER_SUITE_CCMP:
1766                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1767                 break;
1768         case WLAN_CIPHER_SUITE_AES_CMAC:
1769                 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
1770                 break;
1771         case WLAN_CIPHER_SUITE_WEP40:
1772         case WLAN_CIPHER_SUITE_WEP104:
1773                 /*
1774                  * Support for TX only, at least for now, so accept
1775                  * the key and do nothing else. Then mac80211 will
1776                  * pass it for TX but we don't have to use it for RX.
1777                  */
1778                 return 0;
1779         default:
1780                 /* currently FW supports only one optional cipher scheme */
1781                 if (hw->n_cipher_schemes &&
1782                     hw->cipher_schemes->cipher == key->cipher)
1783                         key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
1784                 else
1785                         return -EOPNOTSUPP;
1786         }
1787
1788         mutex_lock(&mvm->mutex);
1789
1790         switch (cmd) {
1791         case SET_KEY:
1792                 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1793                      vif->type == NL80211_IFTYPE_AP) && !sta) {
1794                         /*
1795                          * GTK on AP interface is a TX-only key, return 0;
1796                          * on IBSS they're per-station and because we're lazy
1797                          * we don't support them for RX, so do the same.
1798                          */
1799                         ret = 0;
1800                         key->hw_key_idx = STA_KEY_IDX_INVALID;
1801                         break;
1802                 }
1803
1804                 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
1805                 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
1806                 if (ret) {
1807                         IWL_WARN(mvm, "set key failed\n");
1808                         /*
1809                          * can't add key for RX, but we don't need it
1810                          * in the device for TX so still return 0
1811                          */
1812                         key->hw_key_idx = STA_KEY_IDX_INVALID;
1813                         ret = 0;
1814                 }
1815
1816                 break;
1817         case DISABLE_KEY:
1818                 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
1819                         ret = 0;
1820                         break;
1821                 }
1822
1823                 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
1824                 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
1825                 break;
1826         default:
1827                 ret = -EINVAL;
1828         }
1829
1830         mutex_unlock(&mvm->mutex);
1831         return ret;
1832 }
1833
1834 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
1835                                         struct ieee80211_vif *vif,
1836                                         struct ieee80211_key_conf *keyconf,
1837                                         struct ieee80211_sta *sta,
1838                                         u32 iv32, u16 *phase1key)
1839 {
1840         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1841
1842         if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
1843                 return;
1844
1845         iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
1846 }
1847
1848
1849 static int iwl_mvm_roc(struct ieee80211_hw *hw,
1850                        struct ieee80211_vif *vif,
1851                        struct ieee80211_channel *channel,
1852                        int duration,
1853                        enum ieee80211_roc_type type)
1854 {
1855         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1856         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1857         struct cfg80211_chan_def chandef;
1858         struct iwl_mvm_phy_ctxt *phy_ctxt;
1859         int ret, i;
1860
1861         IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
1862                            duration, type);
1863
1864         if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
1865                 IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
1866                 return -EINVAL;
1867         }
1868
1869         mutex_lock(&mvm->mutex);
1870
1871         for (i = 0; i < NUM_PHY_CTX; i++) {
1872                 phy_ctxt = &mvm->phy_ctxts[i];
1873                 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
1874                         continue;
1875
1876                 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
1877                         /*
1878                          * Unbind the P2P_DEVICE from the current PHY context,
1879                          * and if the PHY context is not used remove it.
1880                          */
1881                         ret = iwl_mvm_binding_remove_vif(mvm, vif);
1882                         if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1883                                 goto out_unlock;
1884
1885                         iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1886
1887                         /* Bind the P2P_DEVICE to the current PHY Context */
1888                         mvmvif->phy_ctxt = phy_ctxt;
1889
1890                         ret = iwl_mvm_binding_add_vif(mvm, vif);
1891                         if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1892                                 goto out_unlock;
1893
1894                         iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1895                         goto schedule_time_event;
1896                 }
1897         }
1898
1899         /* Need to update the PHY context only if the ROC channel changed */
1900         if (channel == mvmvif->phy_ctxt->channel)
1901                 goto schedule_time_event;
1902
1903         cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
1904
1905         /*
1906          * Change the PHY context configuration as it is currently referenced
1907          * only by the P2P Device MAC
1908          */
1909         if (mvmvif->phy_ctxt->ref == 1) {
1910                 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
1911                                                &chandef, 1, 1);
1912                 if (ret)
1913                         goto out_unlock;
1914         } else {
1915                 /*
1916                  * The PHY context is shared with other MACs. Need to remove the
1917                  * P2P Device from the binding, allocate an new PHY context and
1918                  * create a new binding
1919                  */
1920                 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1921                 if (!phy_ctxt) {
1922                         ret = -ENOSPC;
1923                         goto out_unlock;
1924                 }
1925
1926                 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
1927                                                1, 1);
1928                 if (ret) {
1929                         IWL_ERR(mvm, "Failed to change PHY context\n");
1930                         goto out_unlock;
1931                 }
1932
1933                 /* Unbind the P2P_DEVICE from the current PHY context */
1934                 ret = iwl_mvm_binding_remove_vif(mvm, vif);
1935                 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1936                         goto out_unlock;
1937
1938                 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1939
1940                 /* Bind the P2P_DEVICE to the new allocated PHY context */
1941                 mvmvif->phy_ctxt = phy_ctxt;
1942
1943                 ret = iwl_mvm_binding_add_vif(mvm, vif);
1944                 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1945                         goto out_unlock;
1946
1947                 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1948         }
1949
1950 schedule_time_event:
1951         /* Schedule the time events */
1952         ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
1953
1954 out_unlock:
1955         mutex_unlock(&mvm->mutex);
1956         IWL_DEBUG_MAC80211(mvm, "leave\n");
1957         return ret;
1958 }
1959
1960 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
1961 {
1962         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1963
1964         IWL_DEBUG_MAC80211(mvm, "enter\n");
1965
1966         mutex_lock(&mvm->mutex);
1967         iwl_mvm_stop_p2p_roc(mvm);
1968         mutex_unlock(&mvm->mutex);
1969
1970         IWL_DEBUG_MAC80211(mvm, "leave\n");
1971         return 0;
1972 }
1973
1974 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
1975                                struct ieee80211_chanctx_conf *ctx)
1976 {
1977         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1978         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
1979         struct iwl_mvm_phy_ctxt *phy_ctxt;
1980         int ret;
1981
1982         IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
1983
1984         mutex_lock(&mvm->mutex);
1985         phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1986         if (!phy_ctxt) {
1987                 ret = -ENOSPC;
1988                 goto out;
1989         }
1990
1991         ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
1992                                        ctx->rx_chains_static,
1993                                        ctx->rx_chains_dynamic);
1994         if (ret) {
1995                 IWL_ERR(mvm, "Failed to add PHY context\n");
1996                 goto out;
1997         }
1998
1999         iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2000         *phy_ctxt_id = phy_ctxt->id;
2001 out:
2002         mutex_unlock(&mvm->mutex);
2003         return ret;
2004 }
2005
2006 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2007                                    struct ieee80211_chanctx_conf *ctx)
2008 {
2009         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2010         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2011         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2012
2013         mutex_lock(&mvm->mutex);
2014         iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2015         mutex_unlock(&mvm->mutex);
2016 }
2017
2018 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2019                                    struct ieee80211_chanctx_conf *ctx,
2020                                    u32 changed)
2021 {
2022         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2023         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2024         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2025
2026         if (WARN_ONCE((phy_ctxt->ref > 1) &&
2027                       (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2028                                    IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2029                                    IEEE80211_CHANCTX_CHANGE_RADAR |
2030                                    IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2031                       "Cannot change PHY. Ref=%d, changed=0x%X\n",
2032                       phy_ctxt->ref, changed))
2033                 return;
2034
2035         mutex_lock(&mvm->mutex);
2036         iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2037                                  ctx->rx_chains_static,
2038                                  ctx->rx_chains_dynamic);
2039         iwl_mvm_bt_coex_vif_change(mvm);
2040         mutex_unlock(&mvm->mutex);
2041 }
2042
2043 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2044                                       struct ieee80211_vif *vif,
2045                                       struct ieee80211_chanctx_conf *ctx)
2046 {
2047         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2048         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2049         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2050         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2051         int ret;
2052
2053         mutex_lock(&mvm->mutex);
2054
2055         mvmvif->phy_ctxt = phy_ctxt;
2056
2057         switch (vif->type) {
2058         case NL80211_IFTYPE_AP:
2059         case NL80211_IFTYPE_ADHOC:
2060                 /*
2061                  * The AP binding flow is handled as part of the start_ap flow
2062                  * (in bss_info_changed), similarly for IBSS.
2063                  */
2064                 ret = 0;
2065                 goto out_unlock;
2066         case NL80211_IFTYPE_STATION:
2067         case NL80211_IFTYPE_MONITOR:
2068                 break;
2069         default:
2070                 ret = -EINVAL;
2071                 goto out_unlock;
2072         }
2073
2074         ret = iwl_mvm_binding_add_vif(mvm, vif);
2075         if (ret)
2076                 goto out_unlock;
2077
2078         /*
2079          * Power state must be updated before quotas,
2080          * otherwise fw will complain.
2081          */
2082         mvm->bound_vif_cnt++;
2083         iwl_mvm_power_update_binding(mvm, vif, true);
2084
2085         /* Setting the quota at this stage is only required for monitor
2086          * interfaces. For the other types, the bss_info changed flow
2087          * will handle quota settings.
2088          */
2089         if (vif->type == NL80211_IFTYPE_MONITOR) {
2090                 mvmvif->monitor_active = true;
2091                 ret = iwl_mvm_update_quotas(mvm, vif);
2092                 if (ret)
2093                         goto out_remove_binding;
2094         }
2095
2096         goto out_unlock;
2097
2098  out_remove_binding:
2099         iwl_mvm_binding_remove_vif(mvm, vif);
2100         mvm->bound_vif_cnt--;
2101         iwl_mvm_power_update_binding(mvm, vif, false);
2102  out_unlock:
2103         mutex_unlock(&mvm->mutex);
2104         if (ret)
2105                 mvmvif->phy_ctxt = NULL;
2106         return ret;
2107 }
2108
2109 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2110                                          struct ieee80211_vif *vif,
2111                                          struct ieee80211_chanctx_conf *ctx)
2112 {
2113         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2114         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2115
2116         mutex_lock(&mvm->mutex);
2117
2118         iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2119
2120         switch (vif->type) {
2121         case NL80211_IFTYPE_AP:
2122         case NL80211_IFTYPE_ADHOC:
2123                 goto out_unlock;
2124         case NL80211_IFTYPE_MONITOR:
2125                 mvmvif->monitor_active = false;
2126                 iwl_mvm_update_quotas(mvm, NULL);
2127                 break;
2128         default:
2129                 break;
2130         }
2131
2132         iwl_mvm_binding_remove_vif(mvm, vif);
2133         mvm->bound_vif_cnt--;
2134         iwl_mvm_power_update_binding(mvm, vif, false);
2135
2136 out_unlock:
2137         mvmvif->phy_ctxt = NULL;
2138         mutex_unlock(&mvm->mutex);
2139 }
2140
2141 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2142                            struct ieee80211_sta *sta,
2143                            bool set)
2144 {
2145         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2146         struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2147
2148         if (!mvm_sta || !mvm_sta->vif) {
2149                 IWL_ERR(mvm, "Station is not associated to a vif\n");
2150                 return -EINVAL;
2151         }
2152
2153         return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2154 }
2155
2156 #ifdef CONFIG_NL80211_TESTMODE
2157 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
2158         [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
2159         [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
2160         [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
2161 };
2162
2163 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
2164                                       struct ieee80211_vif *vif,
2165                                       void *data, int len)
2166 {
2167         struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
2168         int err;
2169         u32 noa_duration;
2170
2171         err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
2172         if (err)
2173                 return err;
2174
2175         if (!tb[IWL_MVM_TM_ATTR_CMD])
2176                 return -EINVAL;
2177
2178         switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
2179         case IWL_MVM_TM_CMD_SET_NOA:
2180                 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
2181                     !vif->bss_conf.enable_beacon ||
2182                     !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
2183                         return -EINVAL;
2184
2185                 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
2186                 if (noa_duration >= vif->bss_conf.beacon_int)
2187                         return -EINVAL;
2188
2189                 mvm->noa_duration = noa_duration;
2190                 mvm->noa_vif = vif;
2191
2192                 return iwl_mvm_update_quotas(mvm, NULL);
2193         case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
2194                 /* must be associated client vif - ignore authorized */
2195                 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
2196                     !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
2197                     !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
2198                         return -EINVAL;
2199
2200                 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
2201                         return iwl_mvm_enable_beacon_filter(mvm, vif,
2202                                                             CMD_SYNC);
2203                 return iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
2204         }
2205
2206         return -EOPNOTSUPP;
2207 }
2208
2209 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
2210                                     struct ieee80211_vif *vif,
2211                                     void *data, int len)
2212 {
2213         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2214         int err;
2215
2216         mutex_lock(&mvm->mutex);
2217         err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
2218         mutex_unlock(&mvm->mutex);
2219
2220         return err;
2221 }
2222 #endif
2223
2224 struct ieee80211_ops iwl_mvm_hw_ops = {
2225         .tx = iwl_mvm_mac_tx,
2226         .ampdu_action = iwl_mvm_mac_ampdu_action,
2227         .start = iwl_mvm_mac_start,
2228         .restart_complete = iwl_mvm_mac_restart_complete,
2229         .stop = iwl_mvm_mac_stop,
2230         .add_interface = iwl_mvm_mac_add_interface,
2231         .remove_interface = iwl_mvm_mac_remove_interface,
2232         .config = iwl_mvm_mac_config,
2233         .prepare_multicast = iwl_mvm_prepare_multicast,
2234         .configure_filter = iwl_mvm_configure_filter,
2235         .bss_info_changed = iwl_mvm_bss_info_changed,
2236         .hw_scan = iwl_mvm_mac_hw_scan,
2237         .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
2238         .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
2239         .sta_state = iwl_mvm_mac_sta_state,
2240         .sta_notify = iwl_mvm_mac_sta_notify,
2241         .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
2242         .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
2243         .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
2244         .sta_rc_update = iwl_mvm_sta_rc_update,
2245         .conf_tx = iwl_mvm_mac_conf_tx,
2246         .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
2247         .sched_scan_start = iwl_mvm_mac_sched_scan_start,
2248         .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
2249         .set_key = iwl_mvm_mac_set_key,
2250         .update_tkip_key = iwl_mvm_mac_update_tkip_key,
2251         .remain_on_channel = iwl_mvm_roc,
2252         .cancel_remain_on_channel = iwl_mvm_cancel_roc,
2253         .add_chanctx = iwl_mvm_add_chanctx,
2254         .remove_chanctx = iwl_mvm_remove_chanctx,
2255         .change_chanctx = iwl_mvm_change_chanctx,
2256         .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
2257         .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
2258
2259         .start_ap = iwl_mvm_start_ap_ibss,
2260         .stop_ap = iwl_mvm_stop_ap_ibss,
2261         .join_ibss = iwl_mvm_start_ap_ibss,
2262         .leave_ibss = iwl_mvm_stop_ap_ibss,
2263
2264         .set_tim = iwl_mvm_set_tim,
2265
2266         CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
2267
2268 #ifdef CONFIG_PM_SLEEP
2269         /* look at d3.c */
2270         .suspend = iwl_mvm_suspend,
2271         .resume = iwl_mvm_resume,
2272         .set_wakeup = iwl_mvm_set_wakeup,
2273         .set_rekey_data = iwl_mvm_set_rekey_data,
2274 #if IS_ENABLED(CONFIG_IPV6)
2275         .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
2276 #endif
2277         .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
2278 #endif
2279 };