drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  22  * USA
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  25  * in the file called COPYING.
  26  *
  27  * Contact Information:
  28  *  Intel Linux Wireless <ilw@linux.intel.com>
  29  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30  *
  31  * BSD LICENSE
  32  *
  33  * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  *
  40  *  * Redistributions of source code must retain the above copyright
  41  *    notice, this list of conditions and the following disclaimer.
  42  *  * Redistributions in binary form must reproduce the above copyright
  43  *    notice, this list of conditions and the following disclaimer in
  44  *    the documentation and/or other materials provided with the
  45  *    distribution.
  46  *  * Neither the name Intel Corporation nor the names of its
  47  *    contributors may be used to endorse or promote products derived
  48  *    from this software without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  51  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  52  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  53  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  54  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  55  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  56  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  60  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  *
  62  *****************************************************************************/
  63
  64 #include <linux/etherdevice.h>
  65 #include <net/mac80211.h>
  66 #include "iwl-io.h"
  67 #include "iwl-prph.h"
  68 #include "fw-api.h"
  69 #include "mvm.h"
  70
  71 const u8 iwl_mvm_ac_to_tx_fifo[] = {
  72         IWL_MVM_TX_FIFO_BK,
  73         IWL_MVM_TX_FIFO_BE,
  74         IWL_MVM_TX_FIFO_VI,
  75         IWL_MVM_TX_FIFO_VO,
  76 };
  77
  78 struct iwl_mvm_mac_iface_iterator_data {
  79         struct iwl_mvm *mvm;
  80         struct ieee80211_vif *vif;
  81         unsigned long available_mac_ids[BITS_TO_LONGS(NUM_MAC_INDEX_DRIVER)];
  82         unsigned long available_tsf_ids[BITS_TO_LONGS(NUM_TSF_IDS)];
  83         unsigned long used_hw_queues[BITS_TO_LONGS(IWL_MVM_MAX_QUEUES)];
  84         enum iwl_tsf_id preferred_tsf;
  85         bool found_vif;
  86 };
  87
  88 static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac,
  89                                        struct ieee80211_vif *vif)
  90 {
  91         struct iwl_mvm_mac_iface_iterator_data *data = _data;
  92         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
  93         u32 ac;
  94
  95         /* Iterator may already find the interface being added -- skip it */
  96         if (vif == data->vif) {
  97                 data->found_vif = true;
  98                 return;
  99         }
 100
 101         /* Mark the queues used by the vif */
 102         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 103                 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
 104                         __set_bit(vif->hw_queue[ac], data->used_hw_queues);
 105
 106         if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
 107                 __set_bit(vif->cab_queue, data->used_hw_queues);
 108
 109         /*
 110          * Mark MAC IDs as used by clearing the available bit, and
 111          * (below) mark TSFs as used if their existing use is not
 112          * compatible with the new interface type.
 113          * No locking or atomic bit operations are needed since the
 114          * data is on the stack of the caller function.
 115          */
 116         __clear_bit(mvmvif->id, data->available_mac_ids);
 117
 118         /*
 119          * The TSF is a hardware/firmware resource, there are 4 and
 120          * the driver should assign and free them as needed. However,
 121          * there are cases where 2 MACs should share the same TSF ID
 122          * for the purpose of clock sync, an optimization to avoid
 123          * clock drift causing overlapping TBTTs/DTIMs for a GO and
 124          * client in the system.
 125          *
 126          * The firmware will decide according to the MAC type which
 127          * will be the master and slave. Clients that need to sync
 128          * with a remote station will be the master, and an AP or GO
 129          * will be the slave.
 130          *
 131          * Depending on the new interface type it can be slaved to
 132          * or become the master of an existing interface.
 133          */
 134         switch (data->vif->type) {
 135         case NL80211_IFTYPE_STATION:
 136                 /*
 137                  * The new interface is client, so if the existing one
 138                  * we're iterating is an AP, the TSF should be used to
 139                  * avoid drift between the new client and existing AP,
 140                  * the existing AP will get drift updates from the new
 141                  * client context in this case
 142                  */
 143                 if (vif->type == NL80211_IFTYPE_AP) {
 144                         if (data->preferred_tsf == NUM_TSF_IDS &&
 145                             test_bit(mvmvif->tsf_id, data->available_tsf_ids))
 146                                 data->preferred_tsf = mvmvif->tsf_id;
 147                         return;
 148                 }
 149                 break;
 150         case NL80211_IFTYPE_AP:
 151                 /*
 152                  * The new interface is AP/GO, so should get drift
 153                  * updates from an existing client or use the same
 154                  * TSF as an existing GO. There's no drift between
 155                  * TSFs internally but if they used different TSFs
 156                  * then a new client MAC could update one of them
 157                  * and cause drift that way.
 158                  */
 159                 if (vif->type == NL80211_IFTYPE_STATION ||
 160                     vif->type == NL80211_IFTYPE_AP) {
 161                         if (data->preferred_tsf == NUM_TSF_IDS &&
 162                             test_bit(mvmvif->tsf_id, data->available_tsf_ids))
 163                                 data->preferred_tsf = mvmvif->tsf_id;
 164                         return;
 165                 }
 166                 break;
 167         default:
 168                 /*
 169                  * For all other interface types there's no need to
 170                  * take drift into account. Either they're exclusive
 171                  * like IBSS and monitor, or we don't care much about
 172                  * their TSF (like P2P Device), but we won't be able
 173                  * to share the TSF resource.
 174                  */
 175                 break;
 176         }
 177
 178         /*
 179          * Unless we exited above, we can't share the TSF resource
 180          * that the virtual interface we're iterating over is using
 181          * with the new one, so clear the available bit and if this
 182          * was the preferred one, reset that as well.
 183          */
 184         __clear_bit(mvmvif->tsf_id, data->available_tsf_ids);
 185
 186         if (data->preferred_tsf == mvmvif->tsf_id)
 187                 data->preferred_tsf = NUM_TSF_IDS;
 188 }
 189
 190 /*
 191  * Get the mask of the queus used by the vif
 192  */
 193 u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm,
 194                                 struct ieee80211_vif *vif)
 195 {
 196         u32 qmask = 0, ac;
 197
 198         if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
 199                 return BIT(IWL_MVM_OFFCHANNEL_QUEUE);
 200
 201         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 202                 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
 203                         qmask |= BIT(vif->hw_queue[ac]);
 204
 205         return qmask;
 206 }
 207
 208 static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm,
 209                                                struct ieee80211_vif *vif)
 210 {
 211         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 212         struct iwl_mvm_mac_iface_iterator_data data = {
 213                 .mvm = mvm,
 214                 .vif = vif,
 215                 .available_mac_ids = { (1 << NUM_MAC_INDEX_DRIVER) - 1 },
 216                 .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 },
 217                 /* no preference yet */
 218                 .preferred_tsf = NUM_TSF_IDS,
 219                 .used_hw_queues = {
 220                         BIT(IWL_MVM_OFFCHANNEL_QUEUE) |
 221                         BIT(mvm->aux_queue) |
 222                         BIT(IWL_MVM_CMD_QUEUE)
 223                 },
 224                 .found_vif = false,
 225         };
 226         u32 ac;
 227         int ret, i;
 228
 229         /*
 230          * Allocate a MAC ID and a TSF for this MAC, along with the queues
 231          * and other resources.
 232          */
 233
 234         /*
 235          * Before the iterator, we start with all MAC IDs and TSFs available.
 236          *
 237          * During iteration, all MAC IDs are cleared that are in use by other
 238          * virtual interfaces, and all TSF IDs are cleared that can't be used
 239          * by this new virtual interface because they're used by an interface
 240          * that can't share it with the new one.
 241          * At the same time, we check if there's a preferred TSF in the case
 242          * that we should share it with another interface.
 243          */
 244
 245         /* Currently, MAC ID 0 should be used only for the managed vif */
 246         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 247                 __clear_bit(0, data.available_mac_ids);
 248
 249         ieee80211_iterate_active_interfaces_atomic(
 250                 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
 251                 iwl_mvm_mac_iface_iterator, &data);
 252
 253         /*
 254          * In the case we're getting here during resume, it's similar to
 255          * firmware restart, and with RESUME_ALL the iterator will find
 256          * the vif being added already.
 257          * We don't want to reassign any IDs in either case since doing
 258          * so would probably assign different IDs (as interfaces aren't
 259          * necessarily added in the same order), but the old IDs were
 260          * preserved anyway, so skip ID assignment for both resume and
 261          * recovery.
 262          */
 263         if (data.found_vif)
 264                 return 0;
 265
 266         /* Therefore, in recovery, we can't get here */
 267         if (WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))
 268                 return -EBUSY;
 269
 270         mvmvif->id = find_first_bit(data.available_mac_ids,
 271                                     NUM_MAC_INDEX_DRIVER);
 272         if (mvmvif->id == NUM_MAC_INDEX_DRIVER) {
 273                 IWL_ERR(mvm, "Failed to init MAC context - no free ID!\n");
 274                 ret = -EIO;
 275                 goto exit_fail;
 276         }
 277
 278         if (data.preferred_tsf != NUM_TSF_IDS)
 279                 mvmvif->tsf_id = data.preferred_tsf;
 280         else
 281                 mvmvif->tsf_id = find_first_bit(data.available_tsf_ids,
 282                                                 NUM_TSF_IDS);
 283         if (mvmvif->tsf_id == NUM_TSF_IDS) {
 284                 IWL_ERR(mvm, "Failed to init MAC context - no free TSF!\n");
 285                 ret = -EIO;
 286                 goto exit_fail;
 287         }
 288
 289         mvmvif->color = 0;
 290
 291         INIT_LIST_HEAD(&mvmvif->time_event_data.list);
 292         mvmvif->time_event_data.id = TE_MAX;
 293
 294         /* No need to allocate data queues to P2P Device MAC.*/
 295         if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
 296                 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 297                         vif->hw_queue[ac] = IEEE80211_INVAL_HW_QUEUE;
 298
 299                 return 0;
 300         }
 301
 302         /* Find available queues, and allocate them to the ACs */
 303         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 304                 u8 queue = find_first_zero_bit(data.used_hw_queues,
 305                                                mvm->first_agg_queue);
 306
 307                 if (queue >= mvm->first_agg_queue) {
 308                         IWL_ERR(mvm, "Failed to allocate queue\n");
 309                         ret = -EIO;
 310                         goto exit_fail;
 311                 }
 312
 313                 __set_bit(queue, data.used_hw_queues);
 314                 vif->hw_queue[ac] = queue;
 315         }
 316
 317         /* Allocate the CAB queue for softAP and GO interfaces */
 318         if (vif->type == NL80211_IFTYPE_AP) {
 319                 u8 queue = find_first_zero_bit(data.used_hw_queues,
 320                                                mvm->first_agg_queue);
 321
 322                 if (queue >= mvm->first_agg_queue) {
 323                         IWL_ERR(mvm, "Failed to allocate cab queue\n");
 324                         ret = -EIO;
 325                         goto exit_fail;
 326                 }
 327
 328                 vif->cab_queue = queue;
 329         } else {
 330                 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
 331         }
 332
 333         mvmvif->bcast_sta.sta_id = IWL_MVM_STATION_COUNT;
 334         mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
 335
 336         for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++)
 337                 mvmvif->smps_requests[i] = IEEE80211_SMPS_AUTOMATIC;
 338
 339         return 0;
 340
 341 exit_fail:
 342         memset(mvmvif, 0, sizeof(struct iwl_mvm_vif));
 343         memset(vif->hw_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(vif->hw_queue));
 344         vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
 345         return ret;
 346 }
 347
 348 int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 349 {
 350         u32 ac;
 351         int ret;
 352
 353         lockdep_assert_held(&mvm->mutex);
 354
 355         ret = iwl_mvm_mac_ctxt_allocate_resources(mvm, vif);
 356         if (ret)
 357                 return ret;
 358
 359         switch (vif->type) {
 360         case NL80211_IFTYPE_P2P_DEVICE:
 361                 iwl_trans_ac_txq_enable(mvm->trans, IWL_MVM_OFFCHANNEL_QUEUE,
 362                                         IWL_MVM_TX_FIFO_VO);
 363                 break;
 364         case NL80211_IFTYPE_AP:
 365                 iwl_trans_ac_txq_enable(mvm->trans, vif->cab_queue,
 366                                         IWL_MVM_TX_FIFO_MCAST);
 367                 /* fall through */
 368         default:
 369                 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 370                         iwl_trans_ac_txq_enable(mvm->trans, vif->hw_queue[ac],
 371                                                 iwl_mvm_ac_to_tx_fifo[ac]);
 372                 break;
 373         }
 374
 375         return 0;
 376 }
 377
 378 void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 379 {
 380         int ac;
 381
 382         lockdep_assert_held(&mvm->mutex);
 383
 384         switch (vif->type) {
 385         case NL80211_IFTYPE_P2P_DEVICE:
 386                 iwl_trans_txq_disable(mvm->trans, IWL_MVM_OFFCHANNEL_QUEUE);
 387                 break;
 388         case NL80211_IFTYPE_AP:
 389                 iwl_trans_txq_disable(mvm->trans, vif->cab_queue);
 390                 /* fall through */
 391         default:
 392                 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
 393                         iwl_trans_txq_disable(mvm->trans, vif->hw_queue[ac]);
 394         }
 395 }
 396
 397 static void iwl_mvm_ack_rates(struct iwl_mvm *mvm,
 398                               struct ieee80211_vif *vif,
 399                               enum ieee80211_band band,
 400                               u8 *cck_rates, u8 *ofdm_rates)
 401 {
 402         struct ieee80211_supported_band *sband;
 403         unsigned long basic = vif->bss_conf.basic_rates;
 404         int lowest_present_ofdm = 100;
 405         int lowest_present_cck = 100;
 406         u8 cck = 0;
 407         u8 ofdm = 0;
 408         int i;
 409
 410         sband = mvm->hw->wiphy->bands[band];
 411
 412         for_each_set_bit(i, &basic, BITS_PER_LONG) {
 413                 int hw = sband->bitrates[i].hw_value;
 414                 if (hw >= IWL_FIRST_OFDM_RATE) {
 415                         ofdm |= BIT(hw - IWL_FIRST_OFDM_RATE);
 416                         if (lowest_present_ofdm > hw)
 417                                 lowest_present_ofdm = hw;
 418                 } else {
 419                         BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0);
 420
 421                         cck |= BIT(hw);
 422                         if (lowest_present_cck > hw)
 423                                 lowest_present_cck = hw;
 424                 }
 425         }
 426
 427         /*
 428          * Now we've got the basic rates as bitmaps in the ofdm and cck
 429          * variables. This isn't sufficient though, as there might not
 430          * be all the right rates in the bitmap. E.g. if the only basic
 431          * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps
 432          * and 6 Mbps because the 802.11-2007 standard says in 9.6:
 433          *
 434          *    [...] a STA responding to a received frame shall transmit
 435          *    its Control Response frame [...] at the highest rate in the
 436          *    BSSBasicRateSet parameter that is less than or equal to the
 437          *    rate of the immediately previous frame in the frame exchange
 438          *    sequence ([...]) and that is of the same modulation class
 439          *    ([...]) as the received frame. If no rate contained in the
 440          *    BSSBasicRateSet parameter meets these conditions, then the
 441          *    control frame sent in response to a received frame shall be
 442          *    transmitted at the highest mandatory rate of the PHY that is
 443          *    less than or equal to the rate of the received frame, and
 444          *    that is of the same modulation class as the received frame.
 445          *
 446          * As a consequence, we need to add all mandatory rates that are
 447          * lower than all of the basic rates to these bitmaps.
 448          */
 449
 450         if (IWL_RATE_24M_INDEX < lowest_present_ofdm)
 451                 ofdm |= IWL_RATE_BIT_MSK(24) >> IWL_FIRST_OFDM_RATE;
 452         if (IWL_RATE_12M_INDEX < lowest_present_ofdm)
 453                 ofdm |= IWL_RATE_BIT_MSK(12) >> IWL_FIRST_OFDM_RATE;
 454         /* 6M already there or needed so always add */
 455         ofdm |= IWL_RATE_BIT_MSK(6) >> IWL_FIRST_OFDM_RATE;
 456
 457         /*
 458          * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP.
 459          * Note, however:
 460          *  - if no CCK rates are basic, it must be ERP since there must
 461          *    be some basic rates at all, so they're OFDM => ERP PHY
 462          *    (or we're in 5 GHz, and the cck bitmap will never be used)
 463          *  - if 11M is a basic rate, it must be ERP as well, so add 5.5M
 464          *  - if 5.5M is basic, 1M and 2M are mandatory
 465          *  - if 2M is basic, 1M is mandatory
 466          *  - if 1M is basic, that's the only valid ACK rate.
 467          * As a consequence, it's not as complicated as it sounds, just add
 468          * any lower rates to the ACK rate bitmap.
 469          */
 470         if (IWL_RATE_11M_INDEX < lowest_present_cck)
 471                 cck |= IWL_RATE_BIT_MSK(11) >> IWL_FIRST_CCK_RATE;
 472         if (IWL_RATE_5M_INDEX < lowest_present_cck)
 473                 cck |= IWL_RATE_BIT_MSK(5) >> IWL_FIRST_CCK_RATE;
 474         if (IWL_RATE_2M_INDEX < lowest_present_cck)
 475                 cck |= IWL_RATE_BIT_MSK(2) >> IWL_FIRST_CCK_RATE;
 476         /* 1M already there or needed so always add */
 477         cck |= IWL_RATE_BIT_MSK(1) >> IWL_FIRST_CCK_RATE;
 478
 479         *cck_rates = cck;
 480         *ofdm_rates = ofdm;
 481 }
 482
 483 static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm,
 484                                         struct ieee80211_vif *vif,
 485                                         struct iwl_mac_ctx_cmd *cmd,
 486                                         u32 action)
 487 {
 488         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 489         struct ieee80211_chanctx_conf *chanctx;
 490         u8 cck_ack_rates, ofdm_ack_rates;
 491         int i;
 492
 493         cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
 494                                                             mvmvif->color));
 495         cmd->action = cpu_to_le32(action);
 496
 497         switch (vif->type) {
 498         case NL80211_IFTYPE_STATION:
 499                 if (vif->p2p)
 500                         cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_STA);
 501                 else
 502                         cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_BSS_STA);
 503                 break;
 504         case NL80211_IFTYPE_AP:
 505                 cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_GO);
 506                 break;
 507         case NL80211_IFTYPE_MONITOR:
 508                 cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_LISTENER);
 509                 break;
 510         case NL80211_IFTYPE_P2P_DEVICE:
 511                 cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_DEVICE);
 512                 break;
 513         case NL80211_IFTYPE_ADHOC:
 514                 cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_IBSS);
 515                 break;
 516         default:
 517                 WARN_ON_ONCE(1);
 518         }
 519
 520         cmd->tsf_id = cpu_to_le32(mvmvif->tsf_id);
 521
 522         memcpy(cmd->node_addr, vif->addr, ETH_ALEN);
 523         if (vif->bss_conf.bssid)
 524                 memcpy(cmd->bssid_addr, vif->bss_conf.bssid, ETH_ALEN);
 525         else
 526                 eth_broadcast_addr(cmd->bssid_addr);
 527
 528         rcu_read_lock();
 529         chanctx = rcu_dereference(vif->chanctx_conf);
 530         iwl_mvm_ack_rates(mvm, vif, chanctx ? chanctx->def.chan->band
 531                                             : IEEE80211_BAND_2GHZ,
 532                           &cck_ack_rates, &ofdm_ack_rates);
 533         rcu_read_unlock();
 534
 535         cmd->cck_rates = cpu_to_le32((u32)cck_ack_rates);
 536         cmd->ofdm_rates = cpu_to_le32((u32)ofdm_ack_rates);
 537
 538         cmd->cck_short_preamble =
 539                 cpu_to_le32(vif->bss_conf.use_short_preamble ?
 540                             MAC_FLG_SHORT_PREAMBLE : 0);
 541         cmd->short_slot =
 542                 cpu_to_le32(vif->bss_conf.use_short_slot ?
 543                             MAC_FLG_SHORT_SLOT : 0);
 544
 545         for (i = 0; i < AC_NUM; i++) {
 546                 cmd->ac[i].cw_min = cpu_to_le16(mvmvif->queue_params[i].cw_min);
 547                 cmd->ac[i].cw_max = cpu_to_le16(mvmvif->queue_params[i].cw_max);
 548                 cmd->ac[i].aifsn = mvmvif->queue_params[i].aifs;
 549                 cmd->ac[i].edca_txop =
 550                         cpu_to_le16(mvmvif->queue_params[i].txop * 32);
 551                 cmd->ac[i].fifos_mask = BIT(iwl_mvm_ac_to_tx_fifo[i]);
 552         }
 553
 554         /* in AP mode, the MCAST FIFO takes the EDCA params from VO */
 555         if (vif->type == NL80211_IFTYPE_AP)
 556                 cmd->ac[AC_VO].fifos_mask |= BIT(IWL_MVM_TX_FIFO_MCAST);
 557
 558         if (vif->bss_conf.qos)
 559                 cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA);
 560
 561         /* Don't use cts to self as the fw doesn't support it currently. */
 562         if (vif->bss_conf.use_cts_prot) {
 563                 cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT);
 564                 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 8)
 565                         cmd->protection_flags |=
 566                                 cpu_to_le32(MAC_PROT_FLG_SELF_CTS_EN);
 567         }
 568
 569         /*
 570          * I think that we should enable these 2 flags regardless the HT PROT
 571          * fields in the HT IE, but I am not sure. Someone knows whom to ask?...
 572          */
 573         if (vif->bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) {
 574                 cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_TGN);
 575                 cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_HT_PROT |
 576                                                      MAC_PROT_FLG_FAT_PROT);
 577         }
 578
 579         cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP);
 580 }
 581
 582 static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm,
 583                                      struct iwl_mac_ctx_cmd *cmd)
 584 {
 585         int ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, CMD_SYNC,
 586                                        sizeof(*cmd), cmd);
 587         if (ret)
 588                 IWL_ERR(mvm, "Failed to send MAC context (action:%d): %d\n",
 589                         le32_to_cpu(cmd->action), ret);
 590         return ret;
 591 }
 592
 593 /*
 594  * Fill the specific data for mac context of type station or p2p client
 595  */
 596 static void iwl_mvm_mac_ctxt_cmd_fill_sta(struct iwl_mvm *mvm,
 597                                           struct ieee80211_vif *vif,
 598                                           struct iwl_mac_data_sta *ctxt_sta,
 599                                           bool force_assoc_off)
 600 {
 601         /* We need the dtim_period to set the MAC as associated */
 602         if (vif->bss_conf.assoc && vif->bss_conf.dtim_period &&
 603             !force_assoc_off) {
 604                 u32 dtim_offs;
 605
 606                 /*
 607                  * The DTIM count counts down, so when it is N that means N
 608                  * more beacon intervals happen until the DTIM TBTT. Therefore
 609                  * add this to the current time. If that ends up being in the
 610                  * future, the firmware will handle it.
 611                  *
 612                  * Also note that the system_timestamp (which we get here as
 613                  * "sync_device_ts") and TSF timestamp aren't at exactly the
 614                  * same offset in the frame -- the TSF is at the first symbol
 615                  * of the TSF, the system timestamp is at signal acquisition
 616                  * time. This means there's an offset between them of at most
 617                  * a few hundred microseconds (24 * 8 bits + PLCP time gives
 618                  * 384us in the longest case), this is currently not relevant
 619                  * as the firmware wakes up around 2ms before the TBTT.
 620                  */
 621                 dtim_offs = vif->bss_conf.sync_dtim_count *
 622                                 vif->bss_conf.beacon_int;
 623                 /* convert TU to usecs */
 624                 dtim_offs *= 1024;
 625
 626                 ctxt_sta->dtim_tsf =
 627                         cpu_to_le64(vif->bss_conf.sync_tsf + dtim_offs);
 628                 ctxt_sta->dtim_time =
 629                         cpu_to_le32(vif->bss_conf.sync_device_ts + dtim_offs);
 630
 631                 IWL_DEBUG_INFO(mvm, "DTIM TBTT is 0x%llx/0x%x, offset %d\n",
 632                                le64_to_cpu(ctxt_sta->dtim_tsf),
 633                                le32_to_cpu(ctxt_sta->dtim_time),
 634                                dtim_offs);
 635
 636                 ctxt_sta->is_assoc = cpu_to_le32(1);
 637         } else {
 638                 ctxt_sta->is_assoc = cpu_to_le32(0);
 639         }
 640
 641         ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int);
 642         ctxt_sta->bi_reciprocal =
 643                 cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int));
 644         ctxt_sta->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int *
 645                                               vif->bss_conf.dtim_period);
 646         ctxt_sta->dtim_reciprocal =
 647                 cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int *
 648                                                vif->bss_conf.dtim_period));
 649
 650         ctxt_sta->listen_interval = cpu_to_le32(mvm->hw->conf.listen_interval);
 651         ctxt_sta->assoc_id = cpu_to_le32(vif->bss_conf.aid);
 652 }
 653
 654 static int iwl_mvm_mac_ctxt_cmd_station(struct iwl_mvm *mvm,
 655                                         struct ieee80211_vif *vif,
 656                                         u32 action)
 657 {
 658         struct iwl_mac_ctx_cmd cmd = {};
 659
 660         WARN_ON(vif->type != NL80211_IFTYPE_STATION || vif->p2p);
 661
 662         /* Fill the common data for all mac context types */
 663         iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
 664
 665         /* Allow beacons to pass through as long as we are not associated,or we
 666          * do not have dtim period information */
 667         if (!vif->bss_conf.assoc || !vif->bss_conf.dtim_period)
 668                 cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON);
 669         else
 670                 cmd.filter_flags &= ~cpu_to_le32(MAC_FILTER_IN_BEACON);
 671
 672         /* Fill the data specific for station mode */
 673         iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.sta,
 674                                       action == FW_CTXT_ACTION_ADD);
 675
 676         return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
 677 }
 678
 679 static int iwl_mvm_mac_ctxt_cmd_p2p_client(struct iwl_mvm *mvm,
 680                                            struct ieee80211_vif *vif,
 681                                            u32 action)
 682 {
 683         struct iwl_mac_ctx_cmd cmd = {};
 684         struct ieee80211_p2p_noa_attr *noa = &vif->bss_conf.p2p_noa_attr;
 685
 686         WARN_ON(vif->type != NL80211_IFTYPE_STATION || !vif->p2p);
 687
 688         /* Fill the common data for all mac context types */
 689         iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
 690
 691         /* Fill the data specific for station mode */
 692         iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.p2p_sta.sta,
 693                                       action == FW_CTXT_ACTION_ADD);
 694
 695         cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow &
 696                                         IEEE80211_P2P_OPPPS_CTWINDOW_MASK);
 697
 698         return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
 699 }
 700
 701 static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm,
 702                                          struct ieee80211_vif *vif,
 703                                          u32 action)
 704 {
 705         struct iwl_mac_ctx_cmd cmd = {};
 706
 707         WARN_ON(vif->type != NL80211_IFTYPE_MONITOR);
 708
 709         iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
 710
 711         cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROMISC |
 712                                        MAC_FILTER_IN_CONTROL_AND_MGMT |
 713                                        MAC_FILTER_IN_BEACON |
 714                                        MAC_FILTER_IN_PROBE_REQUEST);
 715
 716         return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
 717 }
 718
 719 struct iwl_mvm_go_iterator_data {
 720         bool go_active;
 721 };
 722
 723 static void iwl_mvm_go_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif)
 724 {
 725         struct iwl_mvm_go_iterator_data *data = _data;
 726         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 727
 728         if (vif->type == NL80211_IFTYPE_AP && vif->p2p && mvmvif->ap_active)
 729                 data->go_active = true;
 730 }
 731
 732 static int iwl_mvm_mac_ctxt_cmd_p2p_device(struct iwl_mvm *mvm,
 733                                            struct ieee80211_vif *vif,
 734                                            u32 action)
 735 {
 736         struct iwl_mac_ctx_cmd cmd = {};
 737         struct iwl_mvm_go_iterator_data data = {};
 738
 739         WARN_ON(vif->type != NL80211_IFTYPE_P2P_DEVICE);
 740
 741         iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
 742
 743         cmd.protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT);
 744
 745         /* Override the filter flags to accept only probe requests */
 746         cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST);
 747
 748         /*
 749          * This flag should be set to true when the P2P Device is
 750          * discoverable and there is at least another active P2P GO. Settings
 751          * this flag will allow the P2P Device to be discoverable on other
 752          * channels in addition to its listen channel.
 753          * Note that this flag should not be set in other cases as it opens the
 754          * Rx filters on all MAC and increases the number of interrupts.
 755          */
 756         ieee80211_iterate_active_interfaces_atomic(
 757                 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
 758                 iwl_mvm_go_iterator, &data);
 759
 760         cmd.p2p_dev.is_disc_extended = cpu_to_le32(data.go_active ? 1 : 0);
 761         return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
 762 }
 763
 764 static void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm *mvm,
 765                                      struct iwl_mac_beacon_cmd *beacon_cmd,
 766                                      u8 *beacon, u32 frame_size)
 767 {
 768         u32 tim_idx;
 769         struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
 770
 771         /* The index is relative to frame start but we start looking at the
 772          * variable-length part of the beacon. */
 773         tim_idx = mgmt->u.beacon.variable - beacon;
 774
 775         /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
 776         while ((tim_idx < (frame_size - 2)) &&
 777                         (beacon[tim_idx] != WLAN_EID_TIM))
 778                 tim_idx += beacon[tim_idx+1] + 2;
 779
 780         /* If TIM field was found, set variables */
 781         if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
 782                 beacon_cmd->tim_idx = cpu_to_le32(tim_idx);
 783                 beacon_cmd->tim_size = cpu_to_le32((u32)beacon[tim_idx+1]);
 784         } else {
 785                 IWL_WARN(mvm, "Unable to find TIM Element in beacon\n");
 786         }
 787 }
 788
 789 static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm,
 790                                         struct ieee80211_vif *vif,
 791                                         struct sk_buff *beacon)
 792 {
 793         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 794         struct iwl_host_cmd cmd = {
 795                 .id = BEACON_TEMPLATE_CMD,
 796                 .flags = CMD_ASYNC,
 797         };
 798         struct iwl_mac_beacon_cmd beacon_cmd = {};
 799         struct ieee80211_tx_info *info;
 800         u32 beacon_skb_len;
 801         u32 rate;
 802
 803         if (WARN_ON(!beacon))
 804                 return -EINVAL;
 805
 806         beacon_skb_len = beacon->len;
 807
 808         /* TODO: for now the beacon template id is set to be the mac context id.
 809          * Might be better to handle it as another resource ... */
 810         beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id);
 811
 812         /* Set up TX command fields */
 813         beacon_cmd.tx.len = cpu_to_le16((u16)beacon_skb_len);
 814         beacon_cmd.tx.sta_id = mvmvif->bcast_sta.sta_id;
 815         beacon_cmd.tx.life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE);
 816         beacon_cmd.tx.tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL |
 817                                              TX_CMD_FLG_BT_DIS  |
 818                                              TX_CMD_FLG_TSF);
 819
 820         mvm->mgmt_last_antenna_idx =
 821                 iwl_mvm_next_antenna(mvm, iwl_fw_valid_tx_ant(mvm->fw),
 822                                      mvm->mgmt_last_antenna_idx);
 823
 824         beacon_cmd.tx.rate_n_flags =
 825                 cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) <<
 826                             RATE_MCS_ANT_POS);
 827
 828         info = IEEE80211_SKB_CB(beacon);
 829
 830         if (info->band == IEEE80211_BAND_5GHZ || vif->p2p) {
 831                 rate = IWL_FIRST_OFDM_RATE;
 832         } else {
 833                 rate = IWL_FIRST_CCK_RATE;
 834                 beacon_cmd.tx.rate_n_flags |= cpu_to_le32(RATE_MCS_CCK_MSK);
 835         }
 836         beacon_cmd.tx.rate_n_flags |=
 837                 cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate));
 838
 839         /* Set up TX beacon command fields */
 840         iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd,
 841                                  beacon->data,
 842                                  beacon_skb_len);
 843
 844         /* Submit command */
 845         cmd.len[0] = sizeof(beacon_cmd);
 846         cmd.data[0] = &beacon_cmd;
 847         cmd.dataflags[0] = 0;
 848         cmd.len[1] = beacon_skb_len;
 849         cmd.data[1] = beacon->data;
 850         cmd.dataflags[1] = IWL_HCMD_DFL_DUP;
 851
 852         return iwl_mvm_send_cmd(mvm, &cmd);
 853 }
 854
 855 /* The beacon template for the AP/GO context has changed and needs update */
 856 int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
 857                                     struct ieee80211_vif *vif)
 858 {
 859         struct sk_buff *beacon;
 860         int ret;
 861
 862         WARN_ON(vif->type != NL80211_IFTYPE_AP);
 863
 864         beacon = ieee80211_beacon_get(mvm->hw, vif);
 865         if (!beacon)
 866                 return -ENOMEM;
 867
 868         ret = iwl_mvm_mac_ctxt_send_beacon(mvm, vif, beacon);
 869         dev_kfree_skb(beacon);
 870         return ret;
 871 }
 872
 873 struct iwl_mvm_mac_ap_iterator_data {
 874         struct iwl_mvm *mvm;
 875         struct ieee80211_vif *vif;
 876         u32 beacon_device_ts;
 877         u16 beacon_int;
 878 };
 879
 880 /* Find the beacon_device_ts and beacon_int for a managed interface */
 881 static void iwl_mvm_mac_ap_iterator(void *_data, u8 *mac,
 882                                     struct ieee80211_vif *vif)
 883 {
 884         struct iwl_mvm_mac_ap_iterator_data *data = _data;
 885
 886         if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc)
 887                 return;
 888
 889         /* Station client has higher priority over P2P client*/
 890         if (vif->p2p && data->beacon_device_ts)
 891                 return;
 892
 893         data->beacon_device_ts = vif->bss_conf.sync_device_ts;
 894         data->beacon_int = vif->bss_conf.beacon_int;
 895 }
 896
 897 /*
 898  * Fill the specific data for mac context of type AP of P2P GO
 899  */
 900 static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm,
 901                                          struct ieee80211_vif *vif,
 902                                          struct iwl_mac_data_ap *ctxt_ap,
 903                                          bool add)
 904 {
 905         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 906         struct iwl_mvm_mac_ap_iterator_data data = {
 907                 .mvm = mvm,
 908                 .vif = vif,
 909                 .beacon_device_ts = 0
 910         };
 911
 912         ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int);
 913         ctxt_ap->bi_reciprocal =
 914                 cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int));
 915         ctxt_ap->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int *
 916                                              vif->bss_conf.dtim_period);
 917         ctxt_ap->dtim_reciprocal =
 918                 cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int *
 919                                                vif->bss_conf.dtim_period));
 920
 921         ctxt_ap->mcast_qid = cpu_to_le32(vif->cab_queue);
 922
 923         /*
 924          * Only set the beacon time when the MAC is being added, when we
 925          * just modify the MAC then we should keep the time -- the firmware
 926          * can otherwise have a "jumping" TBTT.
 927          */
 928         if (add) {
 929                 /*
 930                  * If there is a station/P2P client interface which is
 931                  * associated, set the AP's TBTT far enough from the station's
 932                  * TBTT. Otherwise, set it to the current system time
 933                  */
 934                 ieee80211_iterate_active_interfaces_atomic(
 935                         mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
 936                         iwl_mvm_mac_ap_iterator, &data);
 937
 938                 if (data.beacon_device_ts) {
 939                         u32 rand = (prandom_u32() % (80 - 20)) + 20;
 940                         mvmvif->ap_beacon_time = data.beacon_device_ts +
 941                                 ieee80211_tu_to_usec(data.beacon_int * rand /
 942                                                      100);
 943                 } else {
 944                         mvmvif->ap_beacon_time =
 945                                 iwl_read_prph(mvm->trans,
 946                                               DEVICE_SYSTEM_TIME_REG);
 947                 }
 948         }
 949
 950         ctxt_ap->beacon_time = cpu_to_le32(mvmvif->ap_beacon_time);
 951         ctxt_ap->beacon_tsf = 0; /* unused */
 952
 953         /* TODO: Assume that the beacon id == mac context id */
 954         ctxt_ap->beacon_template = cpu_to_le32(mvmvif->id);
 955 }
 956
 957 static int iwl_mvm_mac_ctxt_cmd_ap(struct iwl_mvm *mvm,
 958                                    struct ieee80211_vif *vif,
 959                                    u32 action)
 960 {
 961         struct iwl_mac_ctx_cmd cmd = {};
 962
 963         WARN_ON(vif->type != NL80211_IFTYPE_AP || vif->p2p);
 964
 965         /* Fill the common data for all mac context types */
 966         iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
 967
 968         /* Also enable probe requests to pass */
 969         cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST);
 970
 971         /* Fill the data specific for ap mode */
 972         iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd.ap,
 973                                      action == FW_CTXT_ACTION_ADD);
 974
 975         return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
 976 }
 977
 978 static int iwl_mvm_mac_ctxt_cmd_go(struct iwl_mvm *mvm,
 979                                    struct ieee80211_vif *vif,
 980                                    u32 action)
 981 {
 982         struct iwl_mac_ctx_cmd cmd = {};
 983         struct ieee80211_p2p_noa_attr *noa = &vif->bss_conf.p2p_noa_attr;
 984
 985         WARN_ON(vif->type != NL80211_IFTYPE_AP || !vif->p2p);
 986
 987         /* Fill the common data for all mac context types */
 988         iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
 989
 990         /* Fill the data specific for GO mode */
 991         iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd.go.ap,
 992                                      action == FW_CTXT_ACTION_ADD);
 993
 994         cmd.go.ctwin = cpu_to_le32(noa->oppps_ctwindow &
 995                                         IEEE80211_P2P_OPPPS_CTWINDOW_MASK);
 996         cmd.go.opp_ps_enabled =
 997                         cpu_to_le32(!!(noa->oppps_ctwindow &
 998                                         IEEE80211_P2P_OPPPS_ENABLE_BIT));
 999
1000         return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
1001 }
1002
1003 static int iwl_mvm_mac_ctx_send(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1004                                 u32 action)
1005 {
1006         switch (vif->type) {
1007         case NL80211_IFTYPE_STATION:
1008                 if (!vif->p2p)
1009                         return iwl_mvm_mac_ctxt_cmd_station(mvm, vif,
1010                                                             action);
1011                 else
1012                         return iwl_mvm_mac_ctxt_cmd_p2p_client(mvm, vif,
1013                                                                action);
1014                 break;
1015         case NL80211_IFTYPE_AP:
1016                 if (!vif->p2p)
1017                         return iwl_mvm_mac_ctxt_cmd_ap(mvm, vif, action);
1018                 else
1019                         return iwl_mvm_mac_ctxt_cmd_go(mvm, vif, action);
1020                 break;
1021         case NL80211_IFTYPE_MONITOR:
1022                 return iwl_mvm_mac_ctxt_cmd_listener(mvm, vif, action);
1023         case NL80211_IFTYPE_P2P_DEVICE:
1024                 return iwl_mvm_mac_ctxt_cmd_p2p_device(mvm, vif, action);
1025         default:
1026                 break;
1027         }
1028
1029         return -EOPNOTSUPP;
1030 }
1031
1032 int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1033 {
1034         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1035         int ret;
1036
1037         if (WARN_ONCE(mvmvif->uploaded, "Adding active MAC %pM/%d\n",
1038                       vif->addr, ieee80211_vif_type_p2p(vif)))
1039                 return -EIO;
1040
1041         ret = iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD);
1042         if (ret)
1043                 return ret;
1044
1045         mvmvif->uploaded = true;
1046         return 0;
1047 }
1048
1049 int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1050 {
1051         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1052
1053         if (WARN_ONCE(!mvmvif->uploaded, "Changing inactive MAC %pM/%d\n",
1054                       vif->addr, ieee80211_vif_type_p2p(vif)))
1055                 return -EIO;
1056
1057         return iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY);
1058 }
1059
1060 int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1061 {
1062         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1063         struct iwl_mac_ctx_cmd cmd;
1064         int ret;
1065
1066         if (WARN_ONCE(!mvmvif->uploaded, "Removing inactive MAC %pM/%d\n",
1067                       vif->addr, ieee80211_vif_type_p2p(vif)))
1068                 return -EIO;
1069
1070         memset(&cmd, 0, sizeof(cmd));
1071
1072         cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
1073                                                            mvmvif->color));
1074         cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE);
1075
1076         ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, CMD_SYNC,
1077                                    sizeof(cmd), &cmd);
1078         if (ret) {
1079                 IWL_ERR(mvm, "Failed to remove MAC context: %d\n", ret);
1080                 return ret;
1081         }
1082
1083         mvmvif->uploaded = false;
1084         return 0;
1085 }
1086
1087 int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
1088                             struct iwl_rx_cmd_buffer *rxb,
1089                             struct iwl_device_cmd *cmd)
1090 {
1091         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1092         struct iwl_beacon_notif *beacon = (void *)pkt->data;
1093         u16 status __maybe_unused =
1094                 le16_to_cpu(beacon->beacon_notify_hdr.status.status);
1095         u32 rate __maybe_unused =
1096                 le32_to_cpu(beacon->beacon_notify_hdr.initial_rate);
1097
1098         IWL_DEBUG_RX(mvm, "beacon status %#x retries:%d tsf:0x%16llX rate:%d\n",
1099                      status & TX_STATUS_MSK,
1100                      beacon->beacon_notify_hdr.failure_frame,
1101                      le64_to_cpu(beacon->tsf),
1102                      rate);
1103         return 0;
1104 }
1105
1106 static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac,
1107                                          struct ieee80211_vif *vif)
1108 {
1109         u16 *id = _data;
1110         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1111
1112         if (mvmvif->id == *id)
1113                 ieee80211_beacon_loss(vif);
1114 }
1115
1116 int iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm,
1117                                     struct iwl_rx_cmd_buffer *rxb,
1118                                     struct iwl_device_cmd *cmd)
1119 {
1120         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1121         struct iwl_missed_beacons_notif *missed_beacons = (void *)pkt->data;
1122         u16 id = (u16)le32_to_cpu(missed_beacons->mac_id);
1123
1124         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1125                                                    IEEE80211_IFACE_ITER_NORMAL,
1126                                                    iwl_mvm_beacon_loss_iterator,
1127                                                    &id);
1128         return 0;
1129 }