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

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
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   6  * GPL LICENSE SUMMARY
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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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  28  *  Intel Linux Wireless <ilw@linux.intel.com>
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  44  *    the documentation and/or other materials provided with the
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  48  *    from this software without specific prior written permission.
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  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 (0 && 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         mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
 551
 552         iwl_mvm_reset_phy_ctxts(mvm);
 553         memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
 554         memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
 555
 556         ieee80211_wake_queues(mvm->hw);
 557
 558         /* cleanup all stale references (scan, roc), but keep the
 559          * ucode_down ref until reconfig is complete */
 560         iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
 561
 562         mvm->vif_count = 0;
 563         mvm->rx_ba_sessions = 0;
 564 }
 565
 566 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
 567 {
 568         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 569         int ret;
 570
 571         mutex_lock(&mvm->mutex);
 572
 573         /* Clean up some internal and mac80211 state on restart */
 574         if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
 575                 iwl_mvm_restart_cleanup(mvm);
 576
 577         ret = iwl_mvm_up(mvm);
 578         mutex_unlock(&mvm->mutex);
 579
 580         return ret;
 581 }
 582
 583 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
 584 {
 585         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 586         int ret;
 587
 588         mutex_lock(&mvm->mutex);
 589
 590         clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
 591         ret = iwl_mvm_update_quotas(mvm, NULL);
 592         if (ret)
 593                 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
 594                         ret);
 595
 596         /* allow transport/FW low power modes */
 597         iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
 598
 599         mutex_unlock(&mvm->mutex);
 600 }
 601
 602 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
 603 {
 604         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 605
 606         flush_work(&mvm->d0i3_exit_work);
 607         flush_work(&mvm->async_handlers_wk);
 608
 609         mutex_lock(&mvm->mutex);
 610
 611         /* disallow low power states when the FW is down */
 612         iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
 613
 614         /* async_handlers_wk is now blocked */
 615
 616         /*
 617          * The work item could be running or queued if the
 618          * ROC time event stops just as we get here.
 619          */
 620         cancel_work_sync(&mvm->roc_done_wk);
 621
 622         iwl_trans_stop_device(mvm->trans);
 623
 624         iwl_mvm_async_handlers_purge(mvm);
 625         /* async_handlers_list is empty and will stay empty: HW is stopped */
 626
 627         /* the fw is stopped, the aux sta is dead: clean up driver state */
 628         iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
 629
 630         mutex_unlock(&mvm->mutex);
 631
 632         /*
 633          * The worker might have been waiting for the mutex, let it run and
 634          * discover that its list is now empty.
 635          */
 636         cancel_work_sync(&mvm->async_handlers_wk);
 637 }
 638
 639 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
 640 {
 641         u16 i;
 642
 643         lockdep_assert_held(&mvm->mutex);
 644
 645         for (i = 0; i < NUM_PHY_CTX; i++)
 646                 if (!mvm->phy_ctxts[i].ref)
 647                         return &mvm->phy_ctxts[i];
 648
 649         IWL_ERR(mvm, "No available PHY context\n");
 650         return NULL;
 651 }
 652
 653 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 654                                 s8 tx_power)
 655 {
 656         /* FW is in charge of regulatory enforcement */
 657         struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
 658                 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
 659                 .pwr_restriction = cpu_to_le16(tx_power),
 660         };
 661
 662         return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, CMD_SYNC,
 663                                     sizeof(reduce_txpwr_cmd),
 664                                     &reduce_txpwr_cmd);
 665 }
 666
 667 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 668                                      struct ieee80211_vif *vif)
 669 {
 670         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 671         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 672         int ret;
 673
 674         /*
 675          * Not much to do here. The stack will not allow interface
 676          * types or combinations that we didn't advertise, so we
 677          * don't really have to check the types.
 678          */
 679
 680         mutex_lock(&mvm->mutex);
 681
 682         /* Allocate resources for the MAC context, and add it to the fw  */
 683         ret = iwl_mvm_mac_ctxt_init(mvm, vif);
 684         if (ret)
 685                 goto out_unlock;
 686
 687         /* Counting number of interfaces is needed for legacy PM */
 688         if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
 689                 mvm->vif_count++;
 690
 691         /*
 692          * The AP binding flow can be done only after the beacon
 693          * template is configured (which happens only in the mac80211
 694          * start_ap() flow), and adding the broadcast station can happen
 695          * only after the binding.
 696          * In addition, since modifying the MAC before adding a bcast
 697          * station is not allowed by the FW, delay the adding of MAC context to
 698          * the point where we can also add the bcast station.
 699          * In short: there's not much we can do at this point, other than
 700          * allocating resources :)
 701          */
 702         if (vif->type == NL80211_IFTYPE_AP ||
 703             vif->type == NL80211_IFTYPE_ADHOC) {
 704                 u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
 705                 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
 706                                                qmask,
 707                                                ieee80211_vif_type_p2p(vif));
 708                 if (ret) {
 709                         IWL_ERR(mvm, "Failed to allocate bcast sta\n");
 710                         goto out_release;
 711                 }
 712
 713                 iwl_mvm_vif_dbgfs_register(mvm, vif);
 714                 goto out_unlock;
 715         }
 716
 717         ret = iwl_mvm_mac_ctxt_add(mvm, vif);
 718         if (ret)
 719                 goto out_release;
 720
 721         ret = iwl_mvm_power_update_mac(mvm, vif);
 722         if (ret)
 723                 goto out_release;
 724
 725         /* beacon filtering */
 726         ret = iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
 727         if (ret)
 728                 goto out_remove_mac;
 729
 730         if (!mvm->bf_allowed_vif &&
 731             vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
 732             mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED){
 733                 mvm->bf_allowed_vif = mvmvif;
 734                 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
 735                                      IEEE80211_VIF_SUPPORTS_CQM_RSSI;
 736         }
 737
 738         /*
 739          * P2P_DEVICE interface does not have a channel context assigned to it,
 740          * so a dedicated PHY context is allocated to it and the corresponding
 741          * MAC context is bound to it at this stage.
 742          */
 743         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 744
 745                 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
 746                 if (!mvmvif->phy_ctxt) {
 747                         ret = -ENOSPC;
 748                         goto out_free_bf;
 749                 }
 750
 751                 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
 752                 ret = iwl_mvm_binding_add_vif(mvm, vif);
 753                 if (ret)
 754                         goto out_unref_phy;
 755
 756                 ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
 757                 if (ret)
 758                         goto out_unbind;
 759
 760                 /* Save a pointer to p2p device vif, so it can later be used to
 761                  * update the p2p device MAC when a GO is started/stopped */
 762                 mvm->p2p_device_vif = vif;
 763         }
 764
 765         iwl_mvm_vif_dbgfs_register(mvm, vif);
 766         goto out_unlock;
 767
 768  out_unbind:
 769         iwl_mvm_binding_remove_vif(mvm, vif);
 770  out_unref_phy:
 771         iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
 772  out_free_bf:
 773         if (mvm->bf_allowed_vif == mvmvif) {
 774                 mvm->bf_allowed_vif = NULL;
 775                 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
 776                                        IEEE80211_VIF_SUPPORTS_CQM_RSSI);
 777         }
 778  out_remove_mac:
 779         mvmvif->phy_ctxt = NULL;
 780         iwl_mvm_mac_ctxt_remove(mvm, vif);
 781  out_release:
 782         if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
 783                 mvm->vif_count--;
 784
 785         iwl_mvm_mac_ctxt_release(mvm, vif);
 786  out_unlock:
 787         mutex_unlock(&mvm->mutex);
 788
 789         return ret;
 790 }
 791
 792 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
 793                                         struct ieee80211_vif *vif)
 794 {
 795         u32 tfd_msk = 0, ac;
 796
 797         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 798                 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
 799                         tfd_msk |= BIT(vif->hw_queue[ac]);
 800
 801         if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
 802                 tfd_msk |= BIT(vif->cab_queue);
 803
 804         if (tfd_msk) {
 805                 mutex_lock(&mvm->mutex);
 806                 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
 807                 mutex_unlock(&mvm->mutex);
 808         }
 809
 810         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 811                 /*
 812                  * Flush the ROC worker which will flush the OFFCHANNEL queue.
 813                  * We assume here that all the packets sent to the OFFCHANNEL
 814                  * queue are sent in ROC session.
 815                  */
 816                 flush_work(&mvm->roc_done_wk);
 817         } else {
 818                 /*
 819                  * By now, all the AC queues are empty. The AGG queues are
 820                  * empty too. We already got all the Tx responses for all the
 821                  * packets in the queues. The drain work can have been
 822                  * triggered. Flush it.
 823                  */
 824                 flush_work(&mvm->sta_drained_wk);
 825         }
 826 }
 827
 828 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
 829                                          struct ieee80211_vif *vif)
 830 {
 831         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 832         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 833
 834         iwl_mvm_prepare_mac_removal(mvm, vif);
 835
 836         mutex_lock(&mvm->mutex);
 837
 838         if (mvm->bf_allowed_vif == mvmvif) {
 839                 mvm->bf_allowed_vif = NULL;
 840                 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
 841                                        IEEE80211_VIF_SUPPORTS_CQM_RSSI);
 842         }
 843
 844         iwl_mvm_vif_dbgfs_clean(mvm, vif);
 845
 846         /*
 847          * For AP/GO interface, the tear down of the resources allocated to the
 848          * interface is be handled as part of the stop_ap flow.
 849          */
 850         if (vif->type == NL80211_IFTYPE_AP ||
 851             vif->type == NL80211_IFTYPE_ADHOC) {
 852 #ifdef CONFIG_NL80211_TESTMODE
 853                 if (vif == mvm->noa_vif) {
 854                         mvm->noa_vif = NULL;
 855                         mvm->noa_duration = 0;
 856                 }
 857 #endif
 858                 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
 859                 goto out_release;
 860         }
 861
 862         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 863                 mvm->p2p_device_vif = NULL;
 864                 iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
 865                 iwl_mvm_binding_remove_vif(mvm, vif);
 866                 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
 867                 mvmvif->phy_ctxt = NULL;
 868         }
 869
 870         if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
 871                 mvm->vif_count--;
 872
 873         iwl_mvm_power_update_mac(mvm, vif);
 874         iwl_mvm_mac_ctxt_remove(mvm, vif);
 875
 876 out_release:
 877         iwl_mvm_mac_ctxt_release(mvm, vif);
 878         mutex_unlock(&mvm->mutex);
 879 }
 880
 881 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
 882 {
 883         return 0;
 884 }
 885
 886 struct iwl_mvm_mc_iter_data {
 887         struct iwl_mvm *mvm;
 888         int port_id;
 889 };
 890
 891 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
 892                                       struct ieee80211_vif *vif)
 893 {
 894         struct iwl_mvm_mc_iter_data *data = _data;
 895         struct iwl_mvm *mvm = data->mvm;
 896         struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
 897         int ret, len;
 898
 899         /* if we don't have free ports, mcast frames will be dropped */
 900         if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
 901                 return;
 902
 903         if (vif->type != NL80211_IFTYPE_STATION ||
 904             !vif->bss_conf.assoc)
 905                 return;
 906
 907         cmd->port_id = data->port_id++;
 908         memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
 909         len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
 910
 911         ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, len, cmd);
 912         if (ret)
 913                 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
 914 }
 915
 916 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
 917 {
 918         struct iwl_mvm_mc_iter_data iter_data = {
 919                 .mvm = mvm,
 920         };
 921
 922         lockdep_assert_held(&mvm->mutex);
 923
 924         if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
 925                 return;
 926
 927         ieee80211_iterate_active_interfaces(
 928                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 929                 iwl_mvm_mc_iface_iterator, &iter_data);
 930 }
 931
 932 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
 933                                      struct netdev_hw_addr_list *mc_list)
 934 {
 935         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 936         struct iwl_mcast_filter_cmd *cmd;
 937         struct netdev_hw_addr *addr;
 938         int addr_count = netdev_hw_addr_list_count(mc_list);
 939         bool pass_all = false;
 940         int len;
 941
 942         if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) {
 943                 pass_all = true;
 944                 addr_count = 0;
 945         }
 946
 947         len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
 948         cmd = kzalloc(len, GFP_ATOMIC);
 949         if (!cmd)
 950                 return 0;
 951
 952         if (pass_all) {
 953                 cmd->pass_all = 1;
 954                 return (u64)(unsigned long)cmd;
 955         }
 956
 957         netdev_hw_addr_list_for_each(addr, mc_list) {
 958                 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
 959                                    cmd->count, addr->addr);
 960                 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
 961                        addr->addr, ETH_ALEN);
 962                 cmd->count++;
 963         }
 964
 965         return (u64)(unsigned long)cmd;
 966 }
 967
 968 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
 969                                      unsigned int changed_flags,
 970                                      unsigned int *total_flags,
 971                                      u64 multicast)
 972 {
 973         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 974         struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
 975
 976         mutex_lock(&mvm->mutex);
 977
 978         /* replace previous configuration */
 979         kfree(mvm->mcast_filter_cmd);
 980         mvm->mcast_filter_cmd = cmd;
 981
 982         if (!cmd)
 983                 goto out;
 984
 985         iwl_mvm_recalc_multicast(mvm);
 986 out:
 987         mutex_unlock(&mvm->mutex);
 988         *total_flags = 0;
 989 }
 990
 991 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
 992 struct iwl_bcast_iter_data {
 993         struct iwl_mvm *mvm;
 994         struct iwl_bcast_filter_cmd *cmd;
 995         u8 current_filter;
 996 };
 997
 998 static void
 999 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1000                          const struct iwl_fw_bcast_filter *in_filter,
1001                          struct iwl_fw_bcast_filter *out_filter)
1002 {
1003         struct iwl_fw_bcast_filter_attr *attr;
1004         int i;
1005
1006         memcpy(out_filter, in_filter, sizeof(*out_filter));
1007
1008         for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1009                 attr = &out_filter->attrs[i];
1010
1011                 if (!attr->mask)
1012                         break;
1013
1014                 switch (attr->reserved1) {
1015                 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1016                         if (vif->bss_conf.arp_addr_cnt != 1) {
1017                                 attr->mask = 0;
1018                                 continue;
1019                         }
1020
1021                         attr->val = vif->bss_conf.arp_addr_list[0];
1022                         break;
1023                 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1024                         attr->val = *(__be32 *)&vif->addr[2];
1025                         break;
1026                 default:
1027                         break;
1028                 }
1029                 attr->reserved1 = 0;
1030                 out_filter->num_attrs++;
1031         }
1032 }
1033
1034 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1035                                           struct ieee80211_vif *vif)
1036 {
1037         struct iwl_bcast_iter_data *data = _data;
1038         struct iwl_mvm *mvm = data->mvm;
1039         struct iwl_bcast_filter_cmd *cmd = data->cmd;
1040         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1041         struct iwl_fw_bcast_mac *bcast_mac;
1042         int i;
1043
1044         if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1045                 return;
1046
1047         bcast_mac = &cmd->macs[mvmvif->id];
1048
1049         /* enable filtering only for associated stations */
1050         if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc)
1051                 return;
1052
1053         bcast_mac->default_discard = 1;
1054
1055         /* copy all configured filters */
1056         for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1057                 /*
1058                  * Make sure we don't exceed our filters limit.
1059                  * if there is still a valid filter to be configured,
1060                  * be on the safe side and just allow bcast for this mac.
1061                  */
1062                 if (WARN_ON_ONCE(data->current_filter >=
1063                                  ARRAY_SIZE(cmd->filters))) {
1064                         bcast_mac->default_discard = 0;
1065                         bcast_mac->attached_filters = 0;
1066                         break;
1067                 }
1068
1069                 iwl_mvm_set_bcast_filter(vif,
1070                                          &mvm->bcast_filters[i],
1071                                          &cmd->filters[data->current_filter]);
1072
1073                 /* skip current filter if it contains no attributes */
1074                 if (!cmd->filters[data->current_filter].num_attrs)
1075                         continue;
1076
1077                 /* attach the filter to current mac */
1078                 bcast_mac->attached_filters |=
1079                                 cpu_to_le16(BIT(data->current_filter));
1080
1081                 data->current_filter++;
1082         }
1083 }
1084
1085 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1086                                     struct iwl_bcast_filter_cmd *cmd)
1087 {
1088         struct iwl_bcast_iter_data iter_data = {
1089                 .mvm = mvm,
1090                 .cmd = cmd,
1091         };
1092
1093         memset(cmd, 0, sizeof(*cmd));
1094         cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1095         cmd->max_macs = ARRAY_SIZE(cmd->macs);
1096
1097 #ifdef CONFIG_IWLWIFI_DEBUGFS
1098         /* use debugfs filters/macs if override is configured */
1099         if (mvm->dbgfs_bcast_filtering.override) {
1100                 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1101                        sizeof(cmd->filters));
1102                 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1103                        sizeof(cmd->macs));
1104                 return true;
1105         }
1106 #endif
1107
1108         /* if no filters are configured, do nothing */
1109         if (!mvm->bcast_filters)
1110                 return false;
1111
1112         /* configure and attach these filters for each associated sta vif */
1113         ieee80211_iterate_active_interfaces(
1114                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1115                 iwl_mvm_bcast_filter_iterator, &iter_data);
1116
1117         return true;
1118 }
1119 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1120                                           struct ieee80211_vif *vif)
1121 {
1122         struct iwl_bcast_filter_cmd cmd;
1123
1124         if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1125                 return 0;
1126
1127         if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1128                 return 0;
1129
1130         return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC,
1131                                     sizeof(cmd), &cmd);
1132 }
1133 #else
1134 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1135                                                  struct ieee80211_vif *vif)
1136 {
1137         return 0;
1138 }
1139 #endif
1140
1141 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1142                                              struct ieee80211_vif *vif,
1143                                              struct ieee80211_bss_conf *bss_conf,
1144                                              u32 changes)
1145 {
1146         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1147         int ret;
1148
1149         /*
1150          * Re-calculate the tsf id, as the master-slave relations depend on the
1151          * beacon interval, which was not known when the station interface was
1152          * added.
1153          */
1154         if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1155                 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1156
1157         ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1158         if (ret)
1159                 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1160
1161         if (changes & BSS_CHANGED_ASSOC) {
1162                 if (bss_conf->assoc) {
1163                         /* add quota for this interface */
1164                         ret = iwl_mvm_update_quotas(mvm, vif);
1165                         if (ret) {
1166                                 IWL_ERR(mvm, "failed to update quotas\n");
1167                                 return;
1168                         }
1169
1170                         if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1171                                      &mvm->status)) {
1172                                 /*
1173                                  * If we're restarting then the firmware will
1174                                  * obviously have lost synchronisation with
1175                                  * the AP. It will attempt to synchronise by
1176                                  * itself, but we can make it more reliable by
1177                                  * scheduling a session protection time event.
1178                                  *
1179                                  * The firmware needs to receive a beacon to
1180                                  * catch up with synchronisation, use 110% of
1181                                  * the beacon interval.
1182                                  *
1183                                  * Set a large maximum delay to allow for more
1184                                  * than a single interface.
1185                                  */
1186                                 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1187                                 iwl_mvm_protect_session(mvm, vif, dur, dur,
1188                                                         5 * dur);
1189                         }
1190
1191                         iwl_mvm_sf_update(mvm, vif, false);
1192                         iwl_mvm_power_vif_assoc(mvm, vif);
1193                         if (vif->p2p)
1194                                 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1195                 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1196                         /*
1197                          * If update fails - SF might be running in associated
1198                          * mode while disassociated - which is forbidden.
1199                          */
1200                         WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1201                                   "Failed to update SF upon disassociation\n");
1202
1203                         /* remove AP station now that the MAC is unassoc */
1204                         ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1205                         if (ret)
1206                                 IWL_ERR(mvm, "failed to remove AP station\n");
1207
1208                         if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1209                                 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1210                         mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1211                         /* remove quota for this interface */
1212                         ret = iwl_mvm_update_quotas(mvm, NULL);
1213                         if (ret)
1214                                 IWL_ERR(mvm, "failed to update quotas\n");
1215
1216                         if (vif->p2p)
1217                                 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1218                 }
1219
1220                 iwl_mvm_recalc_multicast(mvm);
1221                 iwl_mvm_configure_bcast_filter(mvm, vif);
1222
1223                 /* reset rssi values */
1224                 mvmvif->bf_data.ave_beacon_signal = 0;
1225
1226                 iwl_mvm_bt_coex_vif_change(mvm);
1227                 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1228                                     IEEE80211_SMPS_AUTOMATIC);
1229         } else if (changes & BSS_CHANGED_BEACON_INFO) {
1230                 /*
1231                  * We received a beacon _after_ association so
1232                  * remove the session protection.
1233                  */
1234                 iwl_mvm_remove_time_event(mvm, mvmvif,
1235                                           &mvmvif->time_event_data);
1236         } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS |
1237                               BSS_CHANGED_QOS)) {
1238                 ret = iwl_mvm_power_update_mac(mvm, vif);
1239                 if (ret)
1240                         IWL_ERR(mvm, "failed to update power mode\n");
1241         }
1242         if (changes & BSS_CHANGED_TXPOWER) {
1243                 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1244                                 bss_conf->txpower);
1245                 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1246         }
1247
1248         if (changes & BSS_CHANGED_CQM) {
1249                 IWL_DEBUG_MAC80211(mvm, "cqm info_changed");
1250                 /* reset cqm events tracking */
1251                 mvmvif->bf_data.last_cqm_event = 0;
1252                 ret = iwl_mvm_update_beacon_filter(mvm, vif, false, CMD_SYNC);
1253                 if (ret)
1254                         IWL_ERR(mvm, "failed to update CQM thresholds\n");
1255         }
1256
1257         if (changes & BSS_CHANGED_ARP_FILTER) {
1258                 IWL_DEBUG_MAC80211(mvm, "arp filter changed");
1259                 iwl_mvm_configure_bcast_filter(mvm, vif);
1260         }
1261 }
1262
1263 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1264                                  struct ieee80211_vif *vif)
1265 {
1266         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1267         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1268         int ret;
1269
1270         mutex_lock(&mvm->mutex);
1271
1272         /* Send the beacon template */
1273         ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1274         if (ret)
1275                 goto out_unlock;
1276
1277         /*
1278          * Re-calculate the tsf id, as the master-slave relations depend on the
1279          * beacon interval, which was not known when the AP interface was added.
1280          */
1281         if (vif->type == NL80211_IFTYPE_AP)
1282                 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1283
1284         /* Add the mac context */
1285         ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1286         if (ret)
1287                 goto out_unlock;
1288
1289         /* Perform the binding */
1290         ret = iwl_mvm_binding_add_vif(mvm, vif);
1291         if (ret)
1292                 goto out_remove;
1293
1294         /* Send the bcast station. At this stage the TBTT and DTIM time events
1295          * are added and applied to the scheduler */
1296         ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
1297         if (ret)
1298                 goto out_unbind;
1299
1300         /* must be set before quota calculations */
1301         mvmvif->ap_ibss_active = true;
1302
1303         /* power updated needs to be done before quotas */
1304         mvm->bound_vif_cnt++;
1305         iwl_mvm_power_update_mac(mvm, vif);
1306
1307         ret = iwl_mvm_update_quotas(mvm, vif);
1308         if (ret)
1309                 goto out_quota_failed;
1310
1311         /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1312         if (vif->p2p && mvm->p2p_device_vif)
1313                 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1314
1315         iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1316
1317         iwl_mvm_bt_coex_vif_change(mvm);
1318
1319         mutex_unlock(&mvm->mutex);
1320         return 0;
1321
1322 out_quota_failed:
1323         mvm->bound_vif_cnt--;
1324         iwl_mvm_power_update_mac(mvm, vif);
1325         mvmvif->ap_ibss_active = false;
1326         iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1327 out_unbind:
1328         iwl_mvm_binding_remove_vif(mvm, vif);
1329 out_remove:
1330         iwl_mvm_mac_ctxt_remove(mvm, vif);
1331 out_unlock:
1332         mutex_unlock(&mvm->mutex);
1333         return ret;
1334 }
1335
1336 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1337                                  struct ieee80211_vif *vif)
1338 {
1339         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1340         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1341
1342         iwl_mvm_prepare_mac_removal(mvm, vif);
1343
1344         mutex_lock(&mvm->mutex);
1345
1346         mvmvif->ap_ibss_active = false;
1347
1348         iwl_mvm_bt_coex_vif_change(mvm);
1349
1350         iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1351
1352         /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1353         if (vif->p2p && mvm->p2p_device_vif)
1354                 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1355
1356         iwl_mvm_update_quotas(mvm, NULL);
1357         iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1358         iwl_mvm_binding_remove_vif(mvm, vif);
1359
1360         mvm->bound_vif_cnt--;
1361         iwl_mvm_power_update_mac(mvm, vif);
1362
1363         iwl_mvm_mac_ctxt_remove(mvm, vif);
1364
1365         mutex_unlock(&mvm->mutex);
1366 }
1367
1368 static void
1369 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1370                                  struct ieee80211_vif *vif,
1371                                  struct ieee80211_bss_conf *bss_conf,
1372                                  u32 changes)
1373 {
1374         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1375
1376         /* Changes will be applied when the AP/IBSS is started */
1377         if (!mvmvif->ap_ibss_active)
1378                 return;
1379
1380         if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
1381                        BSS_CHANGED_BANDWIDTH) &&
1382             iwl_mvm_mac_ctxt_changed(mvm, vif))
1383                 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1384
1385         /* Need to send a new beacon template to the FW */
1386         if (changes & BSS_CHANGED_BEACON &&
1387             iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1388                 IWL_WARN(mvm, "Failed updating beacon data\n");
1389 }
1390
1391 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1392                                      struct ieee80211_vif *vif,
1393                                      struct ieee80211_bss_conf *bss_conf,
1394                                      u32 changes)
1395 {
1396         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1397
1398         mutex_lock(&mvm->mutex);
1399
1400         switch (vif->type) {
1401         case NL80211_IFTYPE_STATION:
1402                 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1403                 break;
1404         case NL80211_IFTYPE_AP:
1405         case NL80211_IFTYPE_ADHOC:
1406                 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1407                 break;
1408         default:
1409                 /* shouldn't happen */
1410                 WARN_ON_ONCE(1);
1411         }
1412
1413         mutex_unlock(&mvm->mutex);
1414 }
1415
1416 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1417                                struct ieee80211_vif *vif,
1418                                struct cfg80211_scan_request *req)
1419 {
1420         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1421         struct iwl_notification_wait wait_scan_done;
1422         static const u8 scan_done_notif[] = { SCAN_OFFLOAD_COMPLETE, };
1423         int ret;
1424
1425         if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
1426                 return -EINVAL;
1427
1428         mutex_lock(&mvm->mutex);
1429
1430         switch (mvm->scan_status) {
1431         case IWL_MVM_SCAN_SCHED:
1432                 iwl_init_notification_wait(&mvm->notif_wait, &wait_scan_done,
1433                                            scan_done_notif,
1434                                            ARRAY_SIZE(scan_done_notif),
1435                                            NULL, NULL);
1436                 iwl_mvm_sched_scan_stop(mvm);
1437                 ret = iwl_wait_notification(&mvm->notif_wait,
1438                                             &wait_scan_done, HZ);
1439                 if (ret) {
1440                         ret = -EBUSY;
1441                         goto out;
1442                 }
1443                 /* iwl_mvm_rx_scan_offload_complete_notif() will be called
1444                  * soon but will not reset the scan status as it won't be
1445                  * IWL_MVM_SCAN_SCHED any more since we queue the next scan
1446                  * immediately (below)
1447                  */
1448                 break;
1449         case IWL_MVM_SCAN_NONE:
1450                 break;
1451         default:
1452                 ret = -EBUSY;
1453                 goto out;
1454         }
1455
1456         iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1457
1458         ret = iwl_mvm_scan_request(mvm, vif, req);
1459         if (ret)
1460                 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1461 out:
1462         mutex_unlock(&mvm->mutex);
1463
1464         return ret;
1465 }
1466
1467 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1468                                        struct ieee80211_vif *vif)
1469 {
1470         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1471
1472         mutex_lock(&mvm->mutex);
1473
1474         iwl_mvm_cancel_scan(mvm);
1475
1476         mutex_unlock(&mvm->mutex);
1477 }
1478
1479 static void
1480 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1481                                   struct ieee80211_sta *sta, u16 tids,
1482                                   int num_frames,
1483                                   enum ieee80211_frame_release_type reason,
1484                                   bool more_data)
1485 {
1486         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1487
1488         /* Called when we need to transmit (a) frame(s) from mac80211 */
1489
1490         iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1491                                           tids, more_data, false);
1492 }
1493
1494 static void
1495 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1496                                     struct ieee80211_sta *sta, u16 tids,
1497                                     int num_frames,
1498                                     enum ieee80211_frame_release_type reason,
1499                                     bool more_data)
1500 {
1501         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1502
1503         /* Called when we need to transmit (a) frame(s) from agg queue */
1504
1505         iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1506                                           tids, more_data, true);
1507 }
1508
1509 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1510                                    struct ieee80211_vif *vif,
1511                                    enum sta_notify_cmd cmd,
1512                                    struct ieee80211_sta *sta)
1513 {
1514         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1515         struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1516         int tid;
1517
1518         switch (cmd) {
1519         case STA_NOTIFY_SLEEP:
1520                 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
1521                         ieee80211_sta_block_awake(hw, sta, true);
1522                 spin_lock_bh(&mvmsta->lock);
1523                 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1524                         struct iwl_mvm_tid_data *tid_data;
1525
1526                         tid_data = &mvmsta->tid_data[tid];
1527                         if (tid_data->state != IWL_AGG_ON &&
1528                             tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
1529                                 continue;
1530                         if (iwl_mvm_tid_queued(tid_data) == 0)
1531                                 continue;
1532                         ieee80211_sta_set_buffered(sta, tid, true);
1533                 }
1534                 spin_unlock_bh(&mvmsta->lock);
1535                 /*
1536                  * The fw updates the STA to be asleep. Tx packets on the Tx
1537                  * queues to this station will not be transmitted. The fw will
1538                  * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1539                  */
1540                 break;
1541         case STA_NOTIFY_AWAKE:
1542                 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
1543                         break;
1544                 iwl_mvm_sta_modify_ps_wake(mvm, sta);
1545                 break;
1546         default:
1547                 break;
1548         }
1549 }
1550
1551 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
1552                                        struct ieee80211_vif *vif,
1553                                        struct ieee80211_sta *sta)
1554 {
1555         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1556         struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1557
1558         /*
1559          * This is called before mac80211 does RCU synchronisation,
1560          * so here we already invalidate our internal RCU-protected
1561          * station pointer. The rest of the code will thus no longer
1562          * be able to find the station this way, and we don't rely
1563          * on further RCU synchronisation after the sta_state()
1564          * callback deleted the station.
1565          */
1566         mutex_lock(&mvm->mutex);
1567         if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
1568                 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
1569                                    ERR_PTR(-ENOENT));
1570         mutex_unlock(&mvm->mutex);
1571 }
1572
1573 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1574                                  struct ieee80211_vif *vif,
1575                                  struct ieee80211_sta *sta,
1576                                  enum ieee80211_sta_state old_state,
1577                                  enum ieee80211_sta_state new_state)
1578 {
1579         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1580         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1581         int ret;
1582
1583         IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1584                            sta->addr, old_state, new_state);
1585
1586         /* this would be a mac80211 bug ... but don't crash */
1587         if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1588                 return -EINVAL;
1589
1590         /* if a STA is being removed, reuse its ID */
1591         flush_work(&mvm->sta_drained_wk);
1592
1593         mutex_lock(&mvm->mutex);
1594         if (old_state == IEEE80211_STA_NOTEXIST &&
1595             new_state == IEEE80211_STA_NONE) {
1596                 /*
1597                  * Firmware bug - it'll crash if the beacon interval is less
1598                  * than 16. We can't avoid connecting at all, so refuse the
1599                  * station state change, this will cause mac80211 to abandon
1600                  * attempts to connect to this AP, and eventually wpa_s will
1601                  * blacklist the AP...
1602                  */
1603                 if (vif->type == NL80211_IFTYPE_STATION &&
1604                     vif->bss_conf.beacon_int < 16) {
1605                         IWL_ERR(mvm,
1606                                 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1607                                 sta->addr, vif->bss_conf.beacon_int);
1608                         ret = -EINVAL;
1609                         goto out_unlock;
1610                 }
1611                 ret = iwl_mvm_add_sta(mvm, vif, sta);
1612         } else if (old_state == IEEE80211_STA_NONE &&
1613                    new_state == IEEE80211_STA_AUTH) {
1614                 ret = 0;
1615         } else if (old_state == IEEE80211_STA_AUTH &&
1616                    new_state == IEEE80211_STA_ASSOC) {
1617                 ret = iwl_mvm_update_sta(mvm, vif, sta);
1618                 if (ret == 0)
1619                         iwl_mvm_rs_rate_init(mvm, sta,
1620                                              mvmvif->phy_ctxt->channel->band,
1621                                              true);
1622         } else if (old_state == IEEE80211_STA_ASSOC &&
1623                    new_state == IEEE80211_STA_AUTHORIZED) {
1624                 /* enable beacon filtering */
1625                 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, CMD_SYNC));
1626                 ret = 0;
1627         } else if (old_state == IEEE80211_STA_AUTHORIZED &&
1628                    new_state == IEEE80211_STA_ASSOC) {
1629                 /* disable beacon filtering */
1630                 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC));
1631                 ret = 0;
1632         } else if (old_state == IEEE80211_STA_ASSOC &&
1633                    new_state == IEEE80211_STA_AUTH) {
1634                 ret = 0;
1635         } else if (old_state == IEEE80211_STA_AUTH &&
1636                    new_state == IEEE80211_STA_NONE) {
1637                 ret = 0;
1638         } else if (old_state == IEEE80211_STA_NONE &&
1639                    new_state == IEEE80211_STA_NOTEXIST) {
1640                 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1641         } else {
1642                 ret = -EIO;
1643         }
1644  out_unlock:
1645         mutex_unlock(&mvm->mutex);
1646
1647         return ret;
1648 }
1649
1650 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1651 {
1652         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1653
1654         mvm->rts_threshold = value;
1655
1656         return 0;
1657 }
1658
1659 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
1660                                   struct ieee80211_vif *vif,
1661                                   struct ieee80211_sta *sta, u32 changed)
1662 {
1663         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1664
1665         if (vif->type == NL80211_IFTYPE_STATION &&
1666             changed & IEEE80211_RC_NSS_CHANGED)
1667                 iwl_mvm_sf_update(mvm, vif, false);
1668 }
1669
1670 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
1671                                struct ieee80211_vif *vif, u16 ac,
1672                                const struct ieee80211_tx_queue_params *params)
1673 {
1674         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1675         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1676
1677         mvmvif->queue_params[ac] = *params;
1678
1679         /*
1680          * No need to update right away, we'll get BSS_CHANGED_QOS
1681          * The exception is P2P_DEVICE interface which needs immediate update.
1682          */
1683         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1684                 int ret;
1685
1686                 mutex_lock(&mvm->mutex);
1687                 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1688                 mutex_unlock(&mvm->mutex);
1689                 return ret;
1690         }
1691         return 0;
1692 }
1693
1694 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
1695                                       struct ieee80211_vif *vif)
1696 {
1697         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1698         u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
1699                            200 + vif->bss_conf.beacon_int);
1700         u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
1701                                100 + vif->bss_conf.beacon_int);
1702
1703         if (WARN_ON_ONCE(vif->bss_conf.assoc))
1704                 return;
1705
1706         mutex_lock(&mvm->mutex);
1707         /* Try really hard to protect the session and hear a beacon */
1708         iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500);
1709         mutex_unlock(&mvm->mutex);
1710 }
1711
1712 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
1713                                         struct ieee80211_vif *vif,
1714                                         struct cfg80211_sched_scan_request *req,
1715                                         struct ieee80211_sched_scan_ies *ies)
1716 {
1717         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1718         int ret;
1719
1720         mutex_lock(&mvm->mutex);
1721
1722         if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1723                 IWL_DEBUG_SCAN(mvm,
1724                                "SCHED SCAN request during internal scan - abort\n");
1725                 ret = -EBUSY;
1726                 goto out;
1727         }
1728
1729         mvm->scan_status = IWL_MVM_SCAN_SCHED;
1730
1731         ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
1732         if (ret)
1733                 goto err;
1734
1735         ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
1736         if (ret)
1737                 goto err;
1738
1739         ret = iwl_mvm_sched_scan_start(mvm, req);
1740         if (!ret)
1741                 goto out;
1742 err:
1743         mvm->scan_status = IWL_MVM_SCAN_NONE;
1744 out:
1745         mutex_unlock(&mvm->mutex);
1746         return ret;
1747 }
1748
1749 static void iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
1750                                         struct ieee80211_vif *vif)
1751 {
1752         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1753
1754         mutex_lock(&mvm->mutex);
1755         iwl_mvm_sched_scan_stop(mvm);
1756         mutex_unlock(&mvm->mutex);
1757 }
1758
1759 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
1760                                enum set_key_cmd cmd,
1761                                struct ieee80211_vif *vif,
1762                                struct ieee80211_sta *sta,
1763                                struct ieee80211_key_conf *key)
1764 {
1765         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1766         int ret;
1767
1768         if (iwlwifi_mod_params.sw_crypto) {
1769                 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
1770                 return -EOPNOTSUPP;
1771         }
1772
1773         switch (key->cipher) {
1774         case WLAN_CIPHER_SUITE_TKIP:
1775                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1776                 /* fall-through */
1777         case WLAN_CIPHER_SUITE_CCMP:
1778                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1779                 break;
1780         case WLAN_CIPHER_SUITE_AES_CMAC:
1781                 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
1782                 break;
1783         case WLAN_CIPHER_SUITE_WEP40:
1784         case WLAN_CIPHER_SUITE_WEP104:
1785                 /*
1786                  * Support for TX only, at least for now, so accept
1787                  * the key and do nothing else. Then mac80211 will
1788                  * pass it for TX but we don't have to use it for RX.
1789                  */
1790                 return 0;
1791         default:
1792                 /* currently FW supports only one optional cipher scheme */
1793                 if (hw->n_cipher_schemes &&
1794                     hw->cipher_schemes->cipher == key->cipher)
1795                         key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
1796                 else
1797                         return -EOPNOTSUPP;
1798         }
1799
1800         mutex_lock(&mvm->mutex);
1801
1802         switch (cmd) {
1803         case SET_KEY:
1804                 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1805                      vif->type == NL80211_IFTYPE_AP) && !sta) {
1806                         /*
1807                          * GTK on AP interface is a TX-only key, return 0;
1808                          * on IBSS they're per-station and because we're lazy
1809                          * we don't support them for RX, so do the same.
1810                          */
1811                         ret = 0;
1812                         key->hw_key_idx = STA_KEY_IDX_INVALID;
1813                         break;
1814                 }
1815
1816                 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
1817                 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
1818                 if (ret) {
1819                         IWL_WARN(mvm, "set key failed\n");
1820                         /*
1821                          * can't add key for RX, but we don't need it
1822                          * in the device for TX so still return 0
1823                          */
1824                         key->hw_key_idx = STA_KEY_IDX_INVALID;
1825                         ret = 0;
1826                 }
1827
1828                 break;
1829         case DISABLE_KEY:
1830                 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
1831                         ret = 0;
1832                         break;
1833                 }
1834
1835                 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
1836                 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
1837                 break;
1838         default:
1839                 ret = -EINVAL;
1840         }
1841
1842         mutex_unlock(&mvm->mutex);
1843         return ret;
1844 }
1845
1846 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
1847                                         struct ieee80211_vif *vif,
1848                                         struct ieee80211_key_conf *keyconf,
1849                                         struct ieee80211_sta *sta,
1850                                         u32 iv32, u16 *phase1key)
1851 {
1852         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1853
1854         if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
1855                 return;
1856
1857         iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
1858 }
1859
1860
1861 static int iwl_mvm_roc(struct ieee80211_hw *hw,
1862                        struct ieee80211_vif *vif,
1863                        struct ieee80211_channel *channel,
1864                        int duration,
1865                        enum ieee80211_roc_type type)
1866 {
1867         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1868         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1869         struct cfg80211_chan_def chandef;
1870         struct iwl_mvm_phy_ctxt *phy_ctxt;
1871         int ret, i;
1872
1873         IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
1874                            duration, type);
1875
1876         if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
1877                 IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
1878                 return -EINVAL;
1879         }
1880
1881         mutex_lock(&mvm->mutex);
1882
1883         for (i = 0; i < NUM_PHY_CTX; i++) {
1884                 phy_ctxt = &mvm->phy_ctxts[i];
1885                 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
1886                         continue;
1887
1888                 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
1889                         /*
1890                          * Unbind the P2P_DEVICE from the current PHY context,
1891                          * and if the PHY context is not used remove it.
1892                          */
1893                         ret = iwl_mvm_binding_remove_vif(mvm, vif);
1894                         if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1895                                 goto out_unlock;
1896
1897                         iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1898
1899                         /* Bind the P2P_DEVICE to the current PHY Context */
1900                         mvmvif->phy_ctxt = phy_ctxt;
1901
1902                         ret = iwl_mvm_binding_add_vif(mvm, vif);
1903                         if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1904                                 goto out_unlock;
1905
1906                         iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1907                         goto schedule_time_event;
1908                 }
1909         }
1910
1911         /* Need to update the PHY context only if the ROC channel changed */
1912         if (channel == mvmvif->phy_ctxt->channel)
1913                 goto schedule_time_event;
1914
1915         cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
1916
1917         /*
1918          * Change the PHY context configuration as it is currently referenced
1919          * only by the P2P Device MAC
1920          */
1921         if (mvmvif->phy_ctxt->ref == 1) {
1922                 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
1923                                                &chandef, 1, 1);
1924                 if (ret)
1925                         goto out_unlock;
1926         } else {
1927                 /*
1928                  * The PHY context is shared with other MACs. Need to remove the
1929                  * P2P Device from the binding, allocate an new PHY context and
1930                  * create a new binding
1931                  */
1932                 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1933                 if (!phy_ctxt) {
1934                         ret = -ENOSPC;
1935                         goto out_unlock;
1936                 }
1937
1938                 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
1939                                                1, 1);
1940                 if (ret) {
1941                         IWL_ERR(mvm, "Failed to change PHY context\n");
1942                         goto out_unlock;
1943                 }
1944
1945                 /* Unbind the P2P_DEVICE from the current PHY context */
1946                 ret = iwl_mvm_binding_remove_vif(mvm, vif);
1947                 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1948                         goto out_unlock;
1949
1950                 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1951
1952                 /* Bind the P2P_DEVICE to the new allocated PHY context */
1953                 mvmvif->phy_ctxt = phy_ctxt;
1954
1955                 ret = iwl_mvm_binding_add_vif(mvm, vif);
1956                 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1957                         goto out_unlock;
1958
1959                 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1960         }
1961
1962 schedule_time_event:
1963         /* Schedule the time events */
1964         ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
1965
1966 out_unlock:
1967         mutex_unlock(&mvm->mutex);
1968         IWL_DEBUG_MAC80211(mvm, "leave\n");
1969         return ret;
1970 }
1971
1972 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
1973 {
1974         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1975
1976         IWL_DEBUG_MAC80211(mvm, "enter\n");
1977
1978         mutex_lock(&mvm->mutex);
1979         iwl_mvm_stop_p2p_roc(mvm);
1980         mutex_unlock(&mvm->mutex);
1981
1982         IWL_DEBUG_MAC80211(mvm, "leave\n");
1983         return 0;
1984 }
1985
1986 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
1987                                struct ieee80211_chanctx_conf *ctx)
1988 {
1989         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1990         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
1991         struct iwl_mvm_phy_ctxt *phy_ctxt;
1992         int ret;
1993
1994         IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
1995
1996         mutex_lock(&mvm->mutex);
1997         phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1998         if (!phy_ctxt) {
1999                 ret = -ENOSPC;
2000                 goto out;
2001         }
2002
2003         ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2004                                        ctx->rx_chains_static,
2005                                        ctx->rx_chains_dynamic);
2006         if (ret) {
2007                 IWL_ERR(mvm, "Failed to add PHY context\n");
2008                 goto out;
2009         }
2010
2011         iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2012         *phy_ctxt_id = phy_ctxt->id;
2013 out:
2014         mutex_unlock(&mvm->mutex);
2015         return ret;
2016 }
2017
2018 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2019                                    struct ieee80211_chanctx_conf *ctx)
2020 {
2021         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2022         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2023         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2024
2025         mutex_lock(&mvm->mutex);
2026         iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2027         mutex_unlock(&mvm->mutex);
2028 }
2029
2030 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2031                                    struct ieee80211_chanctx_conf *ctx,
2032                                    u32 changed)
2033 {
2034         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2035         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2036         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2037
2038         if (WARN_ONCE((phy_ctxt->ref > 1) &&
2039                       (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2040                                    IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2041                                    IEEE80211_CHANCTX_CHANGE_RADAR |
2042                                    IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2043                       "Cannot change PHY. Ref=%d, changed=0x%X\n",
2044                       phy_ctxt->ref, changed))
2045                 return;
2046
2047         mutex_lock(&mvm->mutex);
2048         iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2049                                  ctx->rx_chains_static,
2050                                  ctx->rx_chains_dynamic);
2051         iwl_mvm_bt_coex_vif_change(mvm);
2052         mutex_unlock(&mvm->mutex);
2053 }
2054
2055 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2056                                       struct ieee80211_vif *vif,
2057                                       struct ieee80211_chanctx_conf *ctx)
2058 {
2059         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2060         u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2061         struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2062         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2063         int ret;
2064
2065         mutex_lock(&mvm->mutex);
2066
2067         mvmvif->phy_ctxt = phy_ctxt;
2068
2069         switch (vif->type) {
2070         case NL80211_IFTYPE_AP:
2071         case NL80211_IFTYPE_ADHOC:
2072                 /*
2073                  * The AP binding flow is handled as part of the start_ap flow
2074                  * (in bss_info_changed), similarly for IBSS.
2075                  */
2076                 ret = 0;
2077                 goto out_unlock;
2078         case NL80211_IFTYPE_STATION:
2079         case NL80211_IFTYPE_MONITOR:
2080                 break;
2081         default:
2082                 ret = -EINVAL;
2083                 goto out_unlock;
2084         }
2085
2086         ret = iwl_mvm_binding_add_vif(mvm, vif);
2087         if (ret)
2088                 goto out_unlock;
2089
2090         /*
2091          * Power state must be updated before quotas,
2092          * otherwise fw will complain.
2093          */
2094         mvm->bound_vif_cnt++;
2095         iwl_mvm_power_update_mac(mvm, vif);
2096
2097         /* Setting the quota at this stage is only required for monitor
2098          * interfaces. For the other types, the bss_info changed flow
2099          * will handle quota settings.
2100          */
2101         if (vif->type == NL80211_IFTYPE_MONITOR) {
2102                 mvmvif->monitor_active = true;
2103                 ret = iwl_mvm_update_quotas(mvm, vif);
2104                 if (ret)
2105                         goto out_remove_binding;
2106         }
2107
2108         goto out_unlock;
2109
2110  out_remove_binding:
2111         iwl_mvm_binding_remove_vif(mvm, vif);
2112         mvm->bound_vif_cnt--;
2113         iwl_mvm_power_update_mac(mvm, vif);
2114  out_unlock:
2115         mutex_unlock(&mvm->mutex);
2116         if (ret)
2117                 mvmvif->phy_ctxt = NULL;
2118         return ret;
2119 }
2120
2121 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2122                                          struct ieee80211_vif *vif,
2123                                          struct ieee80211_chanctx_conf *ctx)
2124 {
2125         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2126         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2127
2128         mutex_lock(&mvm->mutex);
2129
2130         iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2131
2132         switch (vif->type) {
2133         case NL80211_IFTYPE_AP:
2134         case NL80211_IFTYPE_ADHOC:
2135                 goto out_unlock;
2136         case NL80211_IFTYPE_MONITOR:
2137                 mvmvif->monitor_active = false;
2138                 iwl_mvm_update_quotas(mvm, NULL);
2139                 break;
2140         default:
2141                 break;
2142         }
2143
2144         iwl_mvm_binding_remove_vif(mvm, vif);
2145         mvm->bound_vif_cnt--;
2146         iwl_mvm_power_update_mac(mvm, vif);
2147
2148 out_unlock:
2149         mvmvif->phy_ctxt = NULL;
2150         mutex_unlock(&mvm->mutex);
2151 }
2152
2153 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2154                            struct ieee80211_sta *sta,
2155                            bool set)
2156 {
2157         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2158         struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2159
2160         if (!mvm_sta || !mvm_sta->vif) {
2161                 IWL_ERR(mvm, "Station is not associated to a vif\n");
2162                 return -EINVAL;
2163         }
2164
2165         return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2166 }
2167
2168 #ifdef CONFIG_NL80211_TESTMODE
2169 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
2170         [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
2171         [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
2172         [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
2173 };
2174
2175 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
2176                                       struct ieee80211_vif *vif,
2177                                       void *data, int len)
2178 {
2179         struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
2180         int err;
2181         u32 noa_duration;
2182
2183         err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
2184         if (err)
2185                 return err;
2186
2187         if (!tb[IWL_MVM_TM_ATTR_CMD])
2188                 return -EINVAL;
2189
2190         switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
2191         case IWL_MVM_TM_CMD_SET_NOA:
2192                 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
2193                     !vif->bss_conf.enable_beacon ||
2194                     !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
2195                         return -EINVAL;
2196
2197                 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
2198                 if (noa_duration >= vif->bss_conf.beacon_int)
2199                         return -EINVAL;
2200
2201                 mvm->noa_duration = noa_duration;
2202                 mvm->noa_vif = vif;
2203
2204                 return iwl_mvm_update_quotas(mvm, NULL);
2205         case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
2206                 /* must be associated client vif - ignore authorized */
2207                 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
2208                     !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
2209                     !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
2210                         return -EINVAL;
2211
2212                 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
2213                         return iwl_mvm_enable_beacon_filter(mvm, vif,
2214                                                             CMD_SYNC);
2215                 return iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
2216         }
2217
2218         return -EOPNOTSUPP;
2219 }
2220
2221 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
2222                                     struct ieee80211_vif *vif,
2223                                     void *data, int len)
2224 {
2225         struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2226         int err;
2227
2228         mutex_lock(&mvm->mutex);
2229         err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
2230         mutex_unlock(&mvm->mutex);
2231
2232         return err;
2233 }
2234 #endif
2235
2236 struct ieee80211_ops iwl_mvm_hw_ops = {
2237         .tx = iwl_mvm_mac_tx,
2238         .ampdu_action = iwl_mvm_mac_ampdu_action,
2239         .start = iwl_mvm_mac_start,
2240         .restart_complete = iwl_mvm_mac_restart_complete,
2241         .stop = iwl_mvm_mac_stop,
2242         .add_interface = iwl_mvm_mac_add_interface,
2243         .remove_interface = iwl_mvm_mac_remove_interface,
2244         .config = iwl_mvm_mac_config,
2245         .prepare_multicast = iwl_mvm_prepare_multicast,
2246         .configure_filter = iwl_mvm_configure_filter,
2247         .bss_info_changed = iwl_mvm_bss_info_changed,
2248         .hw_scan = iwl_mvm_mac_hw_scan,
2249         .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
2250         .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
2251         .sta_state = iwl_mvm_mac_sta_state,
2252         .sta_notify = iwl_mvm_mac_sta_notify,
2253         .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
2254         .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
2255         .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
2256         .sta_rc_update = iwl_mvm_sta_rc_update,
2257         .conf_tx = iwl_mvm_mac_conf_tx,
2258         .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
2259         .sched_scan_start = iwl_mvm_mac_sched_scan_start,
2260         .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
2261         .set_key = iwl_mvm_mac_set_key,
2262         .update_tkip_key = iwl_mvm_mac_update_tkip_key,
2263         .remain_on_channel = iwl_mvm_roc,
2264         .cancel_remain_on_channel = iwl_mvm_cancel_roc,
2265         .add_chanctx = iwl_mvm_add_chanctx,
2266         .remove_chanctx = iwl_mvm_remove_chanctx,
2267         .change_chanctx = iwl_mvm_change_chanctx,
2268         .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
2269         .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
2270
2271         .start_ap = iwl_mvm_start_ap_ibss,
2272         .stop_ap = iwl_mvm_stop_ap_ibss,
2273         .join_ibss = iwl_mvm_start_ap_ibss,
2274         .leave_ibss = iwl_mvm_stop_ap_ibss,
2275
2276         .set_tim = iwl_mvm_set_tim,
2277
2278         CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
2279
2280 #ifdef CONFIG_PM_SLEEP
2281         /* look at d3.c */
2282         .suspend = iwl_mvm_suspend,
2283         .resume = iwl_mvm_resume,
2284         .set_wakeup = iwl_mvm_set_wakeup,
2285         .set_rekey_data = iwl_mvm_set_rekey_data,
2286 #if IS_ENABLED(CONFIG_IPV6)
2287         .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
2288 #endif
2289         .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
2290 #endif
2291 };