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                         if (vif->p2p)
1206                                 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1207                 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1208                         /*
1209                          * If update fails - SF might be running in associated
1210                          * mode while disassociated - which is forbidden.
1211                          */
1212                         WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1213                                   "Failed to update SF upon disassociation\n");
1214
1215                         /* remove AP station now that the MAC is unassoc */
1216                         ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1217                         if (ret)
1218                                 IWL_ERR(mvm, "failed to remove AP station\n");
1219                         mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1220                         /* remove quota for this interface */
1221                         ret = iwl_mvm_update_quotas(mvm, NULL);
1222                         if (ret)
1223                                 IWL_ERR(mvm, "failed to update quotas\n");
1224
1225                         if (vif->p2p)
1226                                 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1227                 }
1228
1229                 iwl_mvm_recalc_multicast(mvm);
1230                 iwl_mvm_configure_bcast_filter(mvm, vif);
1231
1232                 /* reset rssi values */
1233                 mvmvif->bf_data.ave_beacon_signal = 0;
1234
1235                 if (!(mvm->fw->ucode_capa.flags &
1236                                         IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT)) {
1237                         /* Workaround for FW bug, otherwise FW disables device
1238                          * power save upon disassociation
1239                          */
1240                         ret = iwl_mvm_power_update_mode(mvm, vif);
1241                         if (ret)
1242                                 IWL_ERR(mvm, "failed to update power mode\n");
1243                 }
1244                 iwl_mvm_bt_coex_vif_change(mvm);
1245                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1246                                     IEEE80211_SMPS_AUTOMATIC);
1247         } else if (changes & BSS_CHANGED_BEACON_INFO) {
1248                 /*
1249                  * We received a beacon _after_ association so
1250                  * remove the session protection.
1251                  */
1252                 iwl_mvm_remove_time_event(mvm, mvmvif,
1253                                           &mvmvif->time_event_data);
1254         } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS |
1255                               BSS_CHANGED_QOS)) {
1256                 ret = iwl_mvm_power_update_mode(mvm, vif);
1257                 if (ret)
1258                         IWL_ERR(mvm, "failed to update power mode\n");
1259         }
1260         if (changes & BSS_CHANGED_TXPOWER) {
1261                 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1262                                 bss_conf->txpower);
1263                 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1264         }
1265
1266         if (changes & BSS_CHANGED_CQM) {
1267                 IWL_DEBUG_MAC80211(mvm, "cqm info_changed");
1268                 /* reset cqm events tracking */
1269                 mvmvif->bf_data.last_cqm_event = 0;
1270                 ret = iwl_mvm_update_beacon_filter(mvm, vif, false, CMD_SYNC);
1271                 if (ret)
1272                         IWL_ERR(mvm, "failed to update CQM thresholds\n");
1273         }
1274
1275         if (changes & BSS_CHANGED_ARP_FILTER) {
1276                 IWL_DEBUG_MAC80211(mvm, "arp filter changed");
1277                 iwl_mvm_configure_bcast_filter(mvm, vif);
1278         }
1279 }
1280
1281 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1282                                  struct ieee80211_vif *vif)
1283 {
1284         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1285         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1286         int ret;
1287
1288         mutex_lock(&mvm->mutex);
1289
1290         /* Send the beacon template */
1291         ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1292         if (ret)
1293                 goto out_unlock;
1294
1295         /*
1296          * Re-calculate the tsf id, as the master-slave relations depend on the
1297          * beacon interval, which was not known when the AP interface was added.
1298          */
1299         if (vif->type == NL80211_IFTYPE_AP)
1300                 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1301
1302         /* Add the mac context */
1303         ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1304         if (ret)
1305                 goto out_unlock;
1306
1307         /* Perform the binding */
1308         ret = iwl_mvm_binding_add_vif(mvm, vif);
1309         if (ret)
1310                 goto out_remove;
1311
1312         mvmvif->ap_ibss_active = true;
1313
1314         /* Send the bcast station. At this stage the TBTT and DTIM time events
1315          * are added and applied to the scheduler */
1316         ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
1317         if (ret)
1318                 goto out_unbind;
1319
1320         /* must be set before quota calculations */
1321         mvmvif->ap_ibss_active = true;
1322
1323         /* power updated needs to be done before quotas */
1324         mvm->bound_vif_cnt++;
1325         iwl_mvm_power_update_binding(mvm, vif, true);
1326
1327         ret = iwl_mvm_update_quotas(mvm, vif);
1328         if (ret)
1329                 goto out_quota_failed;
1330
1331         /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1332         if (vif->p2p && mvm->p2p_device_vif)
1333                 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1334
1335         iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1336
1337         iwl_mvm_bt_coex_vif_change(mvm);
1338
1339         mutex_unlock(&mvm->mutex);
1340         return 0;
1341
1342 out_quota_failed:
1343         mvm->bound_vif_cnt--;
1344         iwl_mvm_power_update_binding(mvm, vif, false);
1345         mvmvif->ap_ibss_active = false;
1346         iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1347 out_unbind:
1348         iwl_mvm_binding_remove_vif(mvm, vif);
1349 out_remove:
1350         iwl_mvm_mac_ctxt_remove(mvm, vif);
1351 out_unlock:
1352         mutex_unlock(&mvm->mutex);
1353         return ret;
1354 }
1355
1356 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1357                                  struct ieee80211_vif *vif)
1358 {
1359         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1360         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1361
1362         iwl_mvm_prepare_mac_removal(mvm, vif);
1363
1364         mutex_lock(&mvm->mutex);
1365
1366         mvmvif->ap_ibss_active = false;
1367
1368         iwl_mvm_bt_coex_vif_change(mvm);
1369
1370         iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1371
1372         /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1373         if (vif->p2p && mvm->p2p_device_vif)
1374                 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1375
1376         iwl_mvm_update_quotas(mvm, NULL);
1377         iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1378         iwl_mvm_binding_remove_vif(mvm, vif);
1379
1380         mvm->bound_vif_cnt--;
1381         iwl_mvm_power_update_binding(mvm, vif, false);
1382
1383         iwl_mvm_mac_ctxt_remove(mvm, vif);
1384
1385         mutex_unlock(&mvm->mutex);
1386 }
1387
1388 static void
1389 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1390                                  struct ieee80211_vif *vif,
1391                                  struct ieee80211_bss_conf *bss_conf,
1392                                  u32 changes)
1393 {
1394         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1395         enum ieee80211_bss_change ht_change = BSS_CHANGED_ERP_CTS_PROT |
1396                                               BSS_CHANGED_HT |
1397                                               BSS_CHANGED_BANDWIDTH;
1398         int ret;
1399
1400         /* Changes will be applied when the AP/IBSS is started */
1401         if (!mvmvif->ap_ibss_active)
1402                 return;
1403
1404         if (changes & ht_change) {
1405                 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1406                 if (ret)
1407                         IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1408         }
1409
1410         /* Need to send a new beacon template to the FW */
1411         if (changes & BSS_CHANGED_BEACON) {
1412                 if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1413                         IWL_WARN(mvm, "Failed updating beacon data\n");
1414         }
1415 }
1416
1417 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1418                                      struct ieee80211_vif *vif,
1419                                      struct ieee80211_bss_conf *bss_conf,
1420                                      u32 changes)
1421 {
1422         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1423
1424         mutex_lock(&mvm->mutex);
1425
1426         switch (vif->type) {
1427         case NL80211_IFTYPE_STATION:
1428                 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1429                 break;
1430         case NL80211_IFTYPE_AP:
1431         case NL80211_IFTYPE_ADHOC:
1432                 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1433                 break;
1434         default:
1435                 /* shouldn't happen */
1436                 WARN_ON_ONCE(1);
1437         }
1438
1439         mutex_unlock(&mvm->mutex);
1440 }
1441
1442 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1443                                struct ieee80211_vif *vif,
1444                                struct cfg80211_scan_request *req)
1445 {
1446         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1447         int ret;
1448
1449         if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
1450                 return -EINVAL;
1451
1452         mutex_lock(&mvm->mutex);
1453
1454         if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1455                 ret = -EBUSY;
1456                 goto out;
1457         }
1458
1459         iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1460
1461         ret = iwl_mvm_scan_request(mvm, vif, req);
1462         if (ret)
1463                 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1464 out:
1465         mutex_unlock(&mvm->mutex);
1466
1467         return ret;
1468 }
1469
1470 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1471                                        struct ieee80211_vif *vif)
1472 {
1473         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1474
1475         mutex_lock(&mvm->mutex);
1476
1477         iwl_mvm_cancel_scan(mvm);
1478
1479         mutex_unlock(&mvm->mutex);
1480 }
1481
1482 static void
1483 iwl_mvm_mac_allow_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 mac80211 */
1492
1493         iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1494                                           tids, more_data, false);
1495 }
1496
1497 static void
1498 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1499                                     struct ieee80211_sta *sta, u16 tids,
1500                                     int num_frames,
1501                                     enum ieee80211_frame_release_type reason,
1502                                     bool more_data)
1503 {
1504         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1505
1506         /* Called when we need to transmit (a) frame(s) from agg queue */
1507
1508         iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1509                                           tids, more_data, true);
1510 }
1511
1512 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1513                                    struct ieee80211_vif *vif,
1514                                    enum sta_notify_cmd cmd,
1515                                    struct ieee80211_sta *sta)
1516 {
1517         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1518         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1519         int tid;
1520
1521         switch (cmd) {
1522         case STA_NOTIFY_SLEEP:
1523                 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
1524                         ieee80211_sta_block_awake(hw, sta, true);
1525                 spin_lock_bh(&mvmsta->lock);
1526                 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1527                         struct iwl_mvm_tid_data *tid_data;
1528
1529                         tid_data = &mvmsta->tid_data[tid];
1530                         if (tid_data->state != IWL_AGG_ON &&
1531                             tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
1532                                 continue;
1533                         if (iwl_mvm_tid_queued(tid_data) == 0)
1534                                 continue;
1535                         ieee80211_sta_set_buffered(sta, tid, true);
1536                 }
1537                 spin_unlock_bh(&mvmsta->lock);
1538                 /*
1539                  * The fw updates the STA to be asleep. Tx packets on the Tx
1540                  * queues to this station will not be transmitted. The fw will
1541                  * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1542                  */
1543                 break;
1544         case STA_NOTIFY_AWAKE:
1545                 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
1546                         break;
1547                 iwl_mvm_sta_modify_ps_wake(mvm, sta);
1548                 break;
1549         default:
1550                 break;
1551         }
1552 }
1553
1554 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
1555                                        struct ieee80211_vif *vif,
1556                                        struct ieee80211_sta *sta)
1557 {
1558         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1559         struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1560
1561         /*
1562          * This is called before mac80211 does RCU synchronisation,
1563          * so here we already invalidate our internal RCU-protected
1564          * station pointer. The rest of the code will thus no longer
1565          * be able to find the station this way, and we don't rely
1566          * on further RCU synchronisation after the sta_state()
1567          * callback deleted the station.
1568          */
1569         mutex_lock(&mvm->mutex);
1570         if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
1571                 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
1572                                    ERR_PTR(-ENOENT));
1573         mutex_unlock(&mvm->mutex);
1574 }
1575
1576 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1577                                  struct ieee80211_vif *vif,
1578                                  struct ieee80211_sta *sta,
1579                                  enum ieee80211_sta_state old_state,
1580                                  enum ieee80211_sta_state new_state)
1581 {
1582         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1583         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1584         int ret;
1585
1586         IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1587                            sta->addr, old_state, new_state);
1588
1589         /* this would be a mac80211 bug ... but don't crash */
1590         if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1591                 return -EINVAL;
1592
1593         /* if a STA is being removed, reuse its ID */
1594         flush_work(&mvm->sta_drained_wk);
1595
1596         mutex_lock(&mvm->mutex);
1597         if (old_state == IEEE80211_STA_NOTEXIST &&
1598             new_state == IEEE80211_STA_NONE) {
1599                 /*
1600                  * Firmware bug - it'll crash if the beacon interval is less
1601                  * than 16. We can't avoid connecting at all, so refuse the
1602                  * station state change, this will cause mac80211 to abandon
1603                  * attempts to connect to this AP, and eventually wpa_s will
1604                  * blacklist the AP...
1605                  */
1606                 if (vif->type == NL80211_IFTYPE_STATION &&
1607                     vif->bss_conf.beacon_int < 16) {
1608                         IWL_ERR(mvm,
1609                                 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1610                                 sta->addr, vif->bss_conf.beacon_int);
1611                         ret = -EINVAL;
1612                         goto out_unlock;
1613                 }
1614                 ret = iwl_mvm_add_sta(mvm, vif, sta);
1615         } else if (old_state == IEEE80211_STA_NONE &&
1616                    new_state == IEEE80211_STA_AUTH) {
1617                 ret = 0;
1618         } else if (old_state == IEEE80211_STA_AUTH &&
1619                    new_state == IEEE80211_STA_ASSOC) {
1620                 ret = iwl_mvm_update_sta(mvm, vif, sta);
1621                 if (ret == 0)
1622                         iwl_mvm_rs_rate_init(mvm, sta,
1623                                              mvmvif->phy_ctxt->channel->band,
1624                                              true);
1625         } else if (old_state == IEEE80211_STA_ASSOC &&
1626                    new_state == IEEE80211_STA_AUTHORIZED) {
1627                 /* enable beacon filtering */
1628                 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, CMD_SYNC));
1629                 ret = 0;
1630         } else if (old_state == IEEE80211_STA_AUTHORIZED &&
1631                    new_state == IEEE80211_STA_ASSOC) {
1632                 /* disable beacon filtering */
1633                 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC));
1634                 ret = 0;
1635         } else if (old_state == IEEE80211_STA_ASSOC &&
1636                    new_state == IEEE80211_STA_AUTH) {
1637                 ret = 0;
1638         } else if (old_state == IEEE80211_STA_AUTH &&
1639                    new_state == IEEE80211_STA_NONE) {
1640                 ret = 0;
1641         } else if (old_state == IEEE80211_STA_NONE &&
1642                    new_state == IEEE80211_STA_NOTEXIST) {
1643                 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1644         } else {
1645                 ret = -EIO;
1646         }
1647  out_unlock:
1648         mutex_unlock(&mvm->mutex);
1649
1650         return ret;
1651 }
1652
1653 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1654 {
1655         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1656
1657         mvm->rts_threshold = value;
1658
1659         return 0;
1660 }
1661
1662 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
1663                                   struct ieee80211_vif *vif,
1664                                   struct ieee80211_sta *sta, u32 changed)
1665 {
1666         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1667
1668         if (vif->type == NL80211_IFTYPE_STATION &&
1669             changed & IEEE80211_RC_NSS_CHANGED)
1670                 iwl_mvm_sf_update(mvm, vif, false);
1671 }
1672
1673 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
1674                                struct ieee80211_vif *vif, u16 ac,
1675                                const struct ieee80211_tx_queue_params *params)
1676 {
1677         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1678         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1679
1680         mvmvif->queue_params[ac] = *params;
1681
1682         /*
1683          * No need to update right away, we'll get BSS_CHANGED_QOS
1684          * The exception is P2P_DEVICE interface which needs immediate update.
1685          */
1686         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1687                 int ret;
1688
1689                 mutex_lock(&mvm->mutex);
1690                 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1691                 mutex_unlock(&mvm->mutex);
1692                 return ret;
1693         }
1694         return 0;
1695 }
1696
1697 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
1698                                       struct ieee80211_vif *vif)
1699 {
1700         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1701         u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
1702                            200 + vif->bss_conf.beacon_int);
1703         u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
1704                                100 + vif->bss_conf.beacon_int);
1705
1706         if (WARN_ON_ONCE(vif->bss_conf.assoc))
1707                 return;
1708
1709         mutex_lock(&mvm->mutex);
1710         /* Try really hard to protect the session and hear a beacon */
1711         iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500);
1712         mutex_unlock(&mvm->mutex);
1713 }
1714
1715 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
1716                                         struct ieee80211_vif *vif,
1717                                         struct cfg80211_sched_scan_request *req,
1718                                         struct ieee80211_sched_scan_ies *ies)
1719 {
1720         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1721         int ret;
1722
1723         mutex_lock(&mvm->mutex);
1724
1725         if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1726                 IWL_DEBUG_SCAN(mvm,
1727                                "SCHED SCAN request during internal scan - abort\n");
1728                 ret = -EBUSY;
1729                 goto out;
1730         }
1731
1732         mvm->scan_status = IWL_MVM_SCAN_SCHED;
1733
1734         ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
1735         if (ret)
1736                 goto err;
1737
1738         ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
1739         if (ret)
1740                 goto err;
1741
1742         ret = iwl_mvm_sched_scan_start(mvm, req);
1743         if (!ret)
1744                 goto out;
1745 err:
1746         mvm->scan_status = IWL_MVM_SCAN_NONE;
1747 out:
1748         mutex_unlock(&mvm->mutex);
1749         return ret;
1750 }
1751
1752 static void iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
1753                                         struct ieee80211_vif *vif)
1754 {
1755         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1756
1757         mutex_lock(&mvm->mutex);
1758         iwl_mvm_sched_scan_stop(mvm);
1759         mutex_unlock(&mvm->mutex);
1760 }
1761
1762 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
1763                                enum set_key_cmd cmd,
1764                                struct ieee80211_vif *vif,
1765                                struct ieee80211_sta *sta,
1766                                struct ieee80211_key_conf *key)
1767 {
1768         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1769         int ret;
1770
1771         if (iwlwifi_mod_params.sw_crypto) {
1772                 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
1773                 return -EOPNOTSUPP;
1774         }
1775
1776         switch (key->cipher) {
1777         case WLAN_CIPHER_SUITE_TKIP:
1778                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1779                 /* fall-through */
1780         case WLAN_CIPHER_SUITE_CCMP:
1781                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1782                 break;
1783         case WLAN_CIPHER_SUITE_AES_CMAC:
1784                 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
1785                 break;
1786         case WLAN_CIPHER_SUITE_WEP40:
1787         case WLAN_CIPHER_SUITE_WEP104:
1788                 /*
1789                  * Support for TX only, at least for now, so accept
1790                  * the key and do nothing else. Then mac80211 will
1791                  * pass it for TX but we don't have to use it for RX.
1792                  */
1793                 return 0;
1794         default:
1795                 /* currently FW supports only one optional cipher scheme */
1796                 if (hw->n_cipher_schemes &&
1797                     hw->cipher_schemes->cipher == key->cipher)
1798                         key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
1799                 else
1800                         return -EOPNOTSUPP;
1801         }
1802
1803         mutex_lock(&mvm->mutex);
1804
1805         switch (cmd) {
1806         case SET_KEY:
1807                 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1808                      vif->type == NL80211_IFTYPE_AP) && !sta) {
1809                         /*
1810                          * GTK on AP interface is a TX-only key, return 0;
1811                          * on IBSS they're per-station and because we're lazy
1812                          * we don't support them for RX, so do the same.
1813                          */
1814                         ret = 0;
1815                         key->hw_key_idx = STA_KEY_IDX_INVALID;
1816                         break;
1817                 }
1818
1819                 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
1820                 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
1821                 if (ret) {
1822                         IWL_WARN(mvm, "set key failed\n");
1823                         /*
1824                          * can't add key for RX, but we don't need it
1825                          * in the device for TX so still return 0
1826                          */
1827                         key->hw_key_idx = STA_KEY_IDX_INVALID;
1828                         ret = 0;
1829                 }
1830
1831                 break;
1832         case DISABLE_KEY:
1833                 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
1834                         ret = 0;
1835                         break;
1836                 }
1837
1838                 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
1839                 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
1840                 break;
1841         default:
1842                 ret = -EINVAL;
1843         }
1844
1845         mutex_unlock(&mvm->mutex);
1846         return ret;
1847 }
1848
1849 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
1850                                         struct ieee80211_vif *vif,
1851                                         struct ieee80211_key_conf *keyconf,
1852                                         struct ieee80211_sta *sta,
1853                                         u32 iv32, u16 *phase1key)
1854 {
1855         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1856
1857         if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
1858                 return;
1859
1860         iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
1861 }
1862
1863
1864 static int iwl_mvm_roc(struct ieee80211_hw *hw,
1865                        struct ieee80211_vif *vif,
1866                        struct ieee80211_channel *channel,
1867                        int duration,
1868                        enum ieee80211_roc_type type)
1869 {
1870         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1871         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1872         struct cfg80211_chan_def chandef;
1873         struct iwl_mvm_phy_ctxt *phy_ctxt;
1874         int ret, i;
1875
1876         IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
1877                            duration, type);
1878
1879         if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
1880                 IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
1881                 return -EINVAL;
1882         }
1883
1884         mutex_lock(&mvm->mutex);
1885
1886         for (i = 0; i < NUM_PHY_CTX; i++) {
1887                 phy_ctxt = &mvm->phy_ctxts[i];
1888                 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
1889                         continue;
1890
1891                 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
1892                         /*
1893                          * Unbind the P2P_DEVICE from the current PHY context,
1894                          * and if the PHY context is not used remove it.
1895                          */
1896                         ret = iwl_mvm_binding_remove_vif(mvm, vif);
1897                         if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1898                                 goto out_unlock;
1899
1900                         iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1901
1902                         /* Bind the P2P_DEVICE to the current PHY Context */
1903                         mvmvif->phy_ctxt = phy_ctxt;
1904
1905                         ret = iwl_mvm_binding_add_vif(mvm, vif);
1906                         if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1907                                 goto out_unlock;
1908
1909                         iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1910                         goto schedule_time_event;
1911                 }
1912         }
1913
1914         /* Need to update the PHY context only if the ROC channel changed */
1915         if (channel == mvmvif->phy_ctxt->channel)
1916                 goto schedule_time_event;
1917
1918         cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
1919
1920         /*
1921          * Change the PHY context configuration as it is currently referenced
1922          * only by the P2P Device MAC
1923          */
1924         if (mvmvif->phy_ctxt->ref == 1) {
1925                 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
1926                                                &chandef, 1, 1);
1927                 if (ret)
1928                         goto out_unlock;
1929         } else {
1930                 /*
1931                  * The PHY context is shared with other MACs. Need to remove the
1932                  * P2P Device from the binding, allocate an new PHY context and
1933                  * create a new binding
1934                  */
1935                 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1936                 if (!phy_ctxt) {
1937                         ret = -ENOSPC;
1938                         goto out_unlock;
1939                 }
1940
1941                 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
1942                                                1, 1);
1943                 if (ret) {
1944                         IWL_ERR(mvm, "Failed to change PHY context\n");
1945                         goto out_unlock;
1946                 }
1947
1948                 /* Unbind the P2P_DEVICE from the current PHY context */
1949                 ret = iwl_mvm_binding_remove_vif(mvm, vif);
1950                 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1951                         goto out_unlock;
1952
1953                 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1954
1955                 /* Bind the P2P_DEVICE to the new allocated PHY context */
1956                 mvmvif->phy_ctxt = phy_ctxt;
1957
1958                 ret = iwl_mvm_binding_add_vif(mvm, vif);
1959                 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1960                         goto out_unlock;
1961
1962                 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1963         }
1964
1965 schedule_time_event:
1966         /* Schedule the time events */
1967         ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
1968
1969 out_unlock:
1970         mutex_unlock(&mvm->mutex);
1971         IWL_DEBUG_MAC80211(mvm, "leave\n");
1972         return ret;
1973 }
1974
1975 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
1976 {
1977         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1978
1979         IWL_DEBUG_MAC80211(mvm, "enter\n");
1980
1981         mutex_lock(&mvm->mutex);
1982         iwl_mvm_stop_p2p_roc(mvm);
1983         mutex_unlock(&mvm->mutex);
1984
1985         IWL_DEBUG_MAC80211(mvm, "leave\n");
1986         return 0;
1987 }
1988
1989 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
1990                                struct ieee80211_chanctx_conf *ctx)
1991 {
1992         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1993         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
1994         struct iwl_mvm_phy_ctxt *phy_ctxt;
1995         int ret;
1996
1997         IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
1998
1999         mutex_lock(&mvm->mutex);
2000         phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2001         if (!phy_ctxt) {
2002                 ret = -ENOSPC;
2003                 goto out;
2004         }
2005
2006         ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2007                                        ctx->rx_chains_static,
2008                                        ctx->rx_chains_dynamic);
2009         if (ret) {
2010                 IWL_ERR(mvm, "Failed to add PHY context\n");
2011                 goto out;
2012         }
2013
2014         iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2015         *phy_ctxt_id = phy_ctxt->id;
2016 out:
2017         mutex_unlock(&mvm->mutex);
2018         return ret;
2019 }
2020
2021 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2022                                    struct ieee80211_chanctx_conf *ctx)
2023 {
2024         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2025         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2026         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2027
2028         mutex_lock(&mvm->mutex);
2029         iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2030         mutex_unlock(&mvm->mutex);
2031 }
2032
2033 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2034                                    struct ieee80211_chanctx_conf *ctx,
2035                                    u32 changed)
2036 {
2037         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2038         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2039         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2040
2041         if (WARN_ONCE((phy_ctxt->ref > 1) &&
2042                       (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2043                                    IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2044                                    IEEE80211_CHANCTX_CHANGE_RADAR |
2045                                    IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2046                       "Cannot change PHY. Ref=%d, changed=0x%X\n",
2047                       phy_ctxt->ref, changed))
2048                 return;
2049
2050         mutex_lock(&mvm->mutex);
2051         iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2052                                  ctx->rx_chains_static,
2053                                  ctx->rx_chains_dynamic);
2054         iwl_mvm_bt_coex_vif_change(mvm);
2055         mutex_unlock(&mvm->mutex);
2056 }
2057
2058 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2059                                       struct ieee80211_vif *vif,
2060                                       struct ieee80211_chanctx_conf *ctx)
2061 {
2062         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2063         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2064         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2065         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2066         int ret;
2067
2068         mutex_lock(&mvm->mutex);
2069
2070         mvmvif->phy_ctxt = phy_ctxt;
2071
2072         switch (vif->type) {
2073         case NL80211_IFTYPE_AP:
2074         case NL80211_IFTYPE_ADHOC:
2075                 /*
2076                  * The AP binding flow is handled as part of the start_ap flow
2077                  * (in bss_info_changed), similarly for IBSS.
2078                  */
2079                 ret = 0;
2080                 goto out_unlock;
2081         case NL80211_IFTYPE_STATION:
2082         case NL80211_IFTYPE_MONITOR:
2083                 break;
2084         default:
2085                 ret = -EINVAL;
2086                 goto out_unlock;
2087         }
2088
2089         ret = iwl_mvm_binding_add_vif(mvm, vif);
2090         if (ret)
2091                 goto out_unlock;
2092
2093         /*
2094          * Power state must be updated before quotas,
2095          * otherwise fw will complain.
2096          */
2097         mvm->bound_vif_cnt++;
2098         iwl_mvm_power_update_binding(mvm, vif, true);
2099
2100         /* Setting the quota at this stage is only required for monitor
2101          * interfaces. For the other types, the bss_info changed flow
2102          * will handle quota settings.
2103          */
2104         if (vif->type == NL80211_IFTYPE_MONITOR) {
2105                 mvmvif->monitor_active = true;
2106                 ret = iwl_mvm_update_quotas(mvm, vif);
2107                 if (ret)
2108                         goto out_remove_binding;
2109         }
2110
2111         goto out_unlock;
2112
2113  out_remove_binding:
2114         iwl_mvm_binding_remove_vif(mvm, vif);
2115         mvm->bound_vif_cnt--;
2116         iwl_mvm_power_update_binding(mvm, vif, false);
2117  out_unlock:
2118         mutex_unlock(&mvm->mutex);
2119         if (ret)
2120                 mvmvif->phy_ctxt = NULL;
2121         return ret;
2122 }
2123
2124 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2125                                          struct ieee80211_vif *vif,
2126                                          struct ieee80211_chanctx_conf *ctx)
2127 {
2128         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2129         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2130
2131         mutex_lock(&mvm->mutex);
2132
2133         iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2134
2135         switch (vif->type) {
2136         case NL80211_IFTYPE_AP:
2137         case NL80211_IFTYPE_ADHOC:
2138                 goto out_unlock;
2139         case NL80211_IFTYPE_MONITOR:
2140                 mvmvif->monitor_active = false;
2141                 iwl_mvm_update_quotas(mvm, NULL);
2142                 break;
2143         default:
2144                 break;
2145         }
2146
2147         iwl_mvm_binding_remove_vif(mvm, vif);
2148         mvm->bound_vif_cnt--;
2149         iwl_mvm_power_update_binding(mvm, vif, false);
2150
2151 out_unlock:
2152         mvmvif->phy_ctxt = NULL;
2153         mutex_unlock(&mvm->mutex);
2154 }
2155
2156 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2157                            struct ieee80211_sta *sta,
2158                            bool set)
2159 {
2160         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2161         struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2162
2163         if (!mvm_sta || !mvm_sta->vif) {
2164                 IWL_ERR(mvm, "Station is not associated to a vif\n");
2165                 return -EINVAL;
2166         }
2167
2168         return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2169 }
2170
2171 #ifdef CONFIG_NL80211_TESTMODE
2172 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
2173         [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
2174         [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
2175         [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
2176 };
2177
2178 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
2179                                       struct ieee80211_vif *vif,
2180                                       void *data, int len)
2181 {
2182         struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
2183         int err;
2184         u32 noa_duration;
2185
2186         err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
2187         if (err)
2188                 return err;
2189
2190         if (!tb[IWL_MVM_TM_ATTR_CMD])
2191                 return -EINVAL;
2192
2193         switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
2194         case IWL_MVM_TM_CMD_SET_NOA:
2195                 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
2196                     !vif->bss_conf.enable_beacon ||
2197                     !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
2198                         return -EINVAL;
2199
2200                 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
2201                 if (noa_duration >= vif->bss_conf.beacon_int)
2202                         return -EINVAL;
2203
2204                 mvm->noa_duration = noa_duration;
2205                 mvm->noa_vif = vif;
2206
2207                 return iwl_mvm_update_quotas(mvm, NULL);
2208         case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
2209                 /* must be associated client vif - ignore authorized */
2210                 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
2211                     !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
2212                     !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
2213                         return -EINVAL;
2214
2215                 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
2216                         return iwl_mvm_enable_beacon_filter(mvm, vif,
2217                                                             CMD_SYNC);
2218                 return iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
2219         }
2220
2221         return -EOPNOTSUPP;
2222 }
2223
2224 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
2225                                     struct ieee80211_vif *vif,
2226                                     void *data, int len)
2227 {
2228         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2229         int err;
2230
2231         mutex_lock(&mvm->mutex);
2232         err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
2233         mutex_unlock(&mvm->mutex);
2234
2235         return err;
2236 }
2237 #endif
2238
2239 struct ieee80211_ops iwl_mvm_hw_ops = {
2240         .tx = iwl_mvm_mac_tx,
2241         .ampdu_action = iwl_mvm_mac_ampdu_action,
2242         .start = iwl_mvm_mac_start,
2243         .restart_complete = iwl_mvm_mac_restart_complete,
2244         .stop = iwl_mvm_mac_stop,
2245         .add_interface = iwl_mvm_mac_add_interface,
2246         .remove_interface = iwl_mvm_mac_remove_interface,
2247         .config = iwl_mvm_mac_config,
2248         .prepare_multicast = iwl_mvm_prepare_multicast,
2249         .configure_filter = iwl_mvm_configure_filter,
2250         .bss_info_changed = iwl_mvm_bss_info_changed,
2251         .hw_scan = iwl_mvm_mac_hw_scan,
2252         .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
2253         .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
2254         .sta_state = iwl_mvm_mac_sta_state,
2255         .sta_notify = iwl_mvm_mac_sta_notify,
2256         .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
2257         .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
2258         .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
2259         .sta_rc_update = iwl_mvm_sta_rc_update,
2260         .conf_tx = iwl_mvm_mac_conf_tx,
2261         .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
2262         .sched_scan_start = iwl_mvm_mac_sched_scan_start,
2263         .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
2264         .set_key = iwl_mvm_mac_set_key,
2265         .update_tkip_key = iwl_mvm_mac_update_tkip_key,
2266         .remain_on_channel = iwl_mvm_roc,
2267         .cancel_remain_on_channel = iwl_mvm_cancel_roc,
2268         .add_chanctx = iwl_mvm_add_chanctx,
2269         .remove_chanctx = iwl_mvm_remove_chanctx,
2270         .change_chanctx = iwl_mvm_change_chanctx,
2271         .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
2272         .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
2273
2274         .start_ap = iwl_mvm_start_ap_ibss,
2275         .stop_ap = iwl_mvm_stop_ap_ibss,
2276         .join_ibss = iwl_mvm_start_ap_ibss,
2277         .leave_ibss = iwl_mvm_stop_ap_ibss,
2278
2279         .set_tim = iwl_mvm_set_tim,
2280
2281         CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
2282
2283 #ifdef CONFIG_PM_SLEEP
2284         /* look at d3.c */
2285         .suspend = iwl_mvm_suspend,
2286         .resume = iwl_mvm_resume,
2287         .set_wakeup = iwl_mvm_set_wakeup,
2288         .set_rekey_data = iwl_mvm_set_rekey_data,
2289 #if IS_ENABLED(CONFIG_IPV6)
2290         .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
2291 #endif
2292         .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
2293 #endif
2294 };