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

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved.
   4  *
   5  * Portions of this file are derived from the ipw3945 project, as well
   6  * as portions of the ieee80211 subsystem header files.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of version 2 of the GNU General Public License as
  10  * published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  20  *
  21  * The full GNU General Public License is included in this distribution in the
  22  * file called LICENSE.
  23  *
  24  * Contact Information:
  25  *  Intel Linux Wireless <ilw@linux.intel.com>
  26  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  27  *
  28  *****************************************************************************/
  29 #include <linux/kernel.h>
  30 #include <linux/module.h>
  31 #include <linux/init.h>
  32 #include <linux/slab.h>
  33 #include <linux/dma-mapping.h>
  34 #include <linux/delay.h>
  35 #include <linux/sched.h>
  36 #include <linux/skbuff.h>
  37 #include <linux/netdevice.h>
  38 #include <linux/etherdevice.h>
  39 #include <linux/if_arp.h>
  40
  41 #include <net/ieee80211_radiotap.h>
  42 #include <net/mac80211.h>
  43
  44 #include <asm/div64.h>
  45
  46 #include "iwl-io.h"
  47 #include "iwl-trans.h"
  48 #include "iwl-op-mode.h"
  49 #include "iwl-modparams.h"
  50
  51 #include "dev.h"
  52 #include "calib.h"
  53 #include "agn.h"
  54
  55 /*****************************************************************************
  56  *
  57  * mac80211 entry point functions
  58  *
  59  *****************************************************************************/
  60
  61 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = {
  62         {
  63                 .max = 1,
  64                 .types = BIT(NL80211_IFTYPE_STATION),
  65         },
  66         {
  67                 .max = 1,
  68                 .types = BIT(NL80211_IFTYPE_AP),
  69         },
  70 };
  71
  72 static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = {
  73         {
  74                 .max = 2,
  75                 .types = BIT(NL80211_IFTYPE_STATION),
  76         },
  77 };
  78
  79 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = {
  80         {
  81                 .max = 1,
  82                 .types = BIT(NL80211_IFTYPE_STATION),
  83         },
  84         {
  85                 .max = 1,
  86                 .types = BIT(NL80211_IFTYPE_P2P_GO) |
  87                          BIT(NL80211_IFTYPE_AP),
  88         },
  89 };
  90
  91 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = {
  92         {
  93                 .max = 2,
  94                 .types = BIT(NL80211_IFTYPE_STATION),
  95         },
  96         {
  97                 .max = 1,
  98                 .types = BIT(NL80211_IFTYPE_P2P_CLIENT),
  99         },
 100 };
 101
 102 static const struct ieee80211_iface_combination
 103 iwlagn_iface_combinations_dualmode[] = {
 104         { .num_different_channels = 1,
 105           .max_interfaces = 2,
 106           .beacon_int_infra_match = true,
 107           .limits = iwlagn_sta_ap_limits,
 108           .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits),
 109         },
 110         { .num_different_channels = 1,
 111           .max_interfaces = 2,
 112           .limits = iwlagn_2sta_limits,
 113           .n_limits = ARRAY_SIZE(iwlagn_2sta_limits),
 114         },
 115 };
 116
 117 static const struct ieee80211_iface_combination
 118 iwlagn_iface_combinations_p2p[] = {
 119         { .num_different_channels = 1,
 120           .max_interfaces = 2,
 121           .beacon_int_infra_match = true,
 122           .limits = iwlagn_p2p_sta_go_limits,
 123           .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits),
 124         },
 125         { .num_different_channels = 1,
 126           .max_interfaces = 2,
 127           .limits = iwlagn_p2p_2sta_limits,
 128           .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits),
 129         },
 130 };
 131
 132 /*
 133  * Not a mac80211 entry point function, but it fits in with all the
 134  * other mac80211 functions grouped here.
 135  */
 136 int iwlagn_mac_setup_register(struct iwl_priv *priv,
 137                               const struct iwl_ucode_capabilities *capa)
 138 {
 139         int ret;
 140         struct ieee80211_hw *hw = priv->hw;
 141         struct iwl_rxon_context *ctx;
 142
 143         hw->rate_control_algorithm = "iwl-agn-rs";
 144
 145         /* Tell mac80211 our characteristics */
 146         hw->flags = IEEE80211_HW_SIGNAL_DBM |
 147                     IEEE80211_HW_AMPDU_AGGREGATION |
 148                     IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC |
 149                     IEEE80211_HW_SPECTRUM_MGMT |
 150                     IEEE80211_HW_REPORTS_TX_ACK_STATUS |
 151                     IEEE80211_HW_QUEUE_CONTROL |
 152                     IEEE80211_HW_SUPPORTS_PS |
 153                     IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
 154                     IEEE80211_HW_WANT_MONITOR_VIF;
 155
 156         hw->offchannel_tx_hw_queue = IWL_AUX_QUEUE;
 157         hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FMT;
 158
 159         /*
 160          * Including the following line will crash some AP's.  This
 161          * workaround removes the stimulus which causes the crash until
 162          * the AP software can be fixed.
 163         hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
 164          */
 165
 166         if (priv->nvm_data->sku_cap_11n_enable)
 167                 hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
 168                              IEEE80211_HW_SUPPORTS_STATIC_SMPS;
 169
 170         /*
 171          * Enable 11w if advertised by firmware and software crypto
 172          * is not enabled (as the firmware will interpret some mgmt
 173          * packets, so enabling it with software crypto isn't safe)
 174          */
 175         if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
 176             !iwlwifi_mod_params.sw_crypto)
 177                 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
 178
 179         hw->sta_data_size = sizeof(struct iwl_station_priv);
 180         hw->vif_data_size = sizeof(struct iwl_vif_priv);
 181
 182         for_each_context(priv, ctx) {
 183                 hw->wiphy->interface_modes |= ctx->interface_modes;
 184                 hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
 185         }
 186
 187         BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
 188
 189         if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) {
 190                 hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p;
 191                 hw->wiphy->n_iface_combinations =
 192                         ARRAY_SIZE(iwlagn_iface_combinations_p2p);
 193         } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) {
 194                 hw->wiphy->iface_combinations =
 195                         iwlagn_iface_combinations_dualmode;
 196                 hw->wiphy->n_iface_combinations =
 197                         ARRAY_SIZE(iwlagn_iface_combinations_dualmode);
 198         }
 199
 200         hw->wiphy->max_remain_on_channel_duration = 500;
 201
 202         hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
 203                             WIPHY_FLAG_DISABLE_BEACON_HINTS |
 204                             WIPHY_FLAG_IBSS_RSN;
 205
 206 #ifdef CONFIG_PM_SLEEP
 207         if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
 208             priv->trans->ops->d3_suspend &&
 209             priv->trans->ops->d3_resume &&
 210             device_can_wakeup(priv->trans->dev)) {
 211                 hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
 212                                           WIPHY_WOWLAN_DISCONNECT |
 213                                           WIPHY_WOWLAN_EAP_IDENTITY_REQ |
 214                                           WIPHY_WOWLAN_RFKILL_RELEASE;
 215                 if (!iwlwifi_mod_params.sw_crypto)
 216                         hw->wiphy->wowlan.flags |=
 217                                 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
 218                                 WIPHY_WOWLAN_GTK_REKEY_FAILURE;
 219
 220                 hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS;
 221                 hw->wiphy->wowlan.pattern_min_len =
 222                                         IWLAGN_WOWLAN_MIN_PATTERN_LEN;
 223                 hw->wiphy->wowlan.pattern_max_len =
 224                                         IWLAGN_WOWLAN_MAX_PATTERN_LEN;
 225         }
 226 #endif
 227
 228         if (iwlwifi_mod_params.power_save)
 229                 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
 230         else
 231                 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 232
 233         hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
 234         /* we create the 802.11 header and a max-length SSID element */
 235         hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 34;
 236
 237         /*
 238          * We don't use all queues: 4 and 9 are unused and any
 239          * aggregation queue gets mapped down to the AC queue.
 240          */
 241         hw->queues = IWLAGN_FIRST_AMPDU_QUEUE;
 242
 243         hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
 244
 245         if (priv->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
 246                 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
 247                         &priv->nvm_data->bands[IEEE80211_BAND_2GHZ];
 248         if (priv->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
 249                 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 250                         &priv->nvm_data->bands[IEEE80211_BAND_5GHZ];
 251
 252         hw->wiphy->hw_version = priv->trans->hw_id;
 253
 254         iwl_leds_init(priv);
 255
 256         ret = ieee80211_register_hw(priv->hw);
 257         if (ret) {
 258                 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
 259                 iwl_leds_exit(priv);
 260                 return ret;
 261         }
 262         priv->mac80211_registered = 1;
 263
 264         return 0;
 265 }
 266
 267 void iwlagn_mac_unregister(struct iwl_priv *priv)
 268 {
 269         if (!priv->mac80211_registered)
 270                 return;
 271         iwl_leds_exit(priv);
 272         ieee80211_unregister_hw(priv->hw);
 273         priv->mac80211_registered = 0;
 274 }
 275
 276 static int __iwl_up(struct iwl_priv *priv)
 277 {
 278         struct iwl_rxon_context *ctx;
 279         int ret;
 280
 281         lockdep_assert_held(&priv->mutex);
 282
 283         if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
 284                 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
 285                 return -EIO;
 286         }
 287
 288         for_each_context(priv, ctx) {
 289                 ret = iwlagn_alloc_bcast_station(priv, ctx);
 290                 if (ret) {
 291                         iwl_dealloc_bcast_stations(priv);
 292                         return ret;
 293                 }
 294         }
 295
 296         ret = iwl_run_init_ucode(priv);
 297         if (ret) {
 298                 IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret);
 299                 goto error;
 300         }
 301
 302         ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR);
 303         if (ret) {
 304                 IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret);
 305                 goto error;
 306         }
 307
 308         ret = iwl_alive_start(priv);
 309         if (ret)
 310                 goto error;
 311         return 0;
 312
 313  error:
 314         set_bit(STATUS_EXIT_PENDING, &priv->status);
 315         iwl_down(priv);
 316         clear_bit(STATUS_EXIT_PENDING, &priv->status);
 317
 318         IWL_ERR(priv, "Unable to initialize device.\n");
 319         return ret;
 320 }
 321
 322 static int iwlagn_mac_start(struct ieee80211_hw *hw)
 323 {
 324         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 325         int ret;
 326
 327         IWL_DEBUG_MAC80211(priv, "enter\n");
 328
 329         /* we should be verifying the device is ready to be opened */
 330         mutex_lock(&priv->mutex);
 331         ret = __iwl_up(priv);
 332         mutex_unlock(&priv->mutex);
 333         if (ret)
 334                 return ret;
 335
 336         IWL_DEBUG_INFO(priv, "Start UP work done.\n");
 337
 338         /* Now we should be done, and the READY bit should be set. */
 339         if (WARN_ON(!test_bit(STATUS_READY, &priv->status)))
 340                 ret = -EIO;
 341
 342         iwlagn_led_enable(priv);
 343
 344         priv->is_open = 1;
 345         IWL_DEBUG_MAC80211(priv, "leave\n");
 346         return 0;
 347 }
 348
 349 static void iwlagn_mac_stop(struct ieee80211_hw *hw)
 350 {
 351         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 352
 353         IWL_DEBUG_MAC80211(priv, "enter\n");
 354
 355         if (!priv->is_open)
 356                 return;
 357
 358         priv->is_open = 0;
 359
 360         mutex_lock(&priv->mutex);
 361         iwl_down(priv);
 362         mutex_unlock(&priv->mutex);
 363
 364         iwl_cancel_deferred_work(priv);
 365
 366         flush_workqueue(priv->workqueue);
 367
 368         /* User space software may expect getting rfkill changes
 369          * even if interface is down, trans->down will leave the RF
 370          * kill interrupt enabled
 371          */
 372         iwl_trans_stop_hw(priv->trans, false);
 373
 374         IWL_DEBUG_MAC80211(priv, "leave\n");
 375 }
 376
 377 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw,
 378                                       struct ieee80211_vif *vif,
 379                                       struct cfg80211_gtk_rekey_data *data)
 380 {
 381         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 382
 383         if (iwlwifi_mod_params.sw_crypto)
 384                 return;
 385
 386         IWL_DEBUG_MAC80211(priv, "enter\n");
 387         mutex_lock(&priv->mutex);
 388
 389         if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif)
 390                 goto out;
 391
 392         memcpy(priv->kek, data->kek, NL80211_KEK_LEN);
 393         memcpy(priv->kck, data->kck, NL80211_KCK_LEN);
 394         priv->replay_ctr =
 395                 cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr));
 396         priv->have_rekey_data = true;
 397
 398  out:
 399         mutex_unlock(&priv->mutex);
 400         IWL_DEBUG_MAC80211(priv, "leave\n");
 401 }
 402
 403 #ifdef CONFIG_PM_SLEEP
 404
 405 static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
 406                               struct cfg80211_wowlan *wowlan)
 407 {
 408         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 409         struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
 410         int ret;
 411
 412         if (WARN_ON(!wowlan))
 413                 return -EINVAL;
 414
 415         IWL_DEBUG_MAC80211(priv, "enter\n");
 416         mutex_lock(&priv->mutex);
 417
 418         /* Don't attempt WoWLAN when not associated, tear down instead. */
 419         if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION ||
 420             !iwl_is_associated_ctx(ctx)) {
 421                 ret = 1;
 422                 goto out;
 423         }
 424
 425         ret = iwlagn_suspend(priv, wowlan);
 426         if (ret)
 427                 goto error;
 428
 429         /* let the ucode operate on its own */
 430         iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_SET,
 431                     CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
 432
 433         iwl_trans_d3_suspend(priv->trans, false);
 434
 435         goto out;
 436
 437  error:
 438         priv->wowlan = false;
 439         iwlagn_prepare_restart(priv);
 440         ieee80211_restart_hw(priv->hw);
 441  out:
 442         mutex_unlock(&priv->mutex);
 443         IWL_DEBUG_MAC80211(priv, "leave\n");
 444
 445         return ret;
 446 }
 447
 448 struct iwl_resume_data {
 449         struct iwl_priv *priv;
 450         struct iwlagn_wowlan_status *cmd;
 451         bool valid;
 452 };
 453
 454 static bool iwl_resume_status_fn(struct iwl_notif_wait_data *notif_wait,
 455                                  struct iwl_rx_packet *pkt, void *data)
 456 {
 457         struct iwl_resume_data *resume_data = data;
 458         struct iwl_priv *priv = resume_data->priv;
 459         u32 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 460
 461         if (len - 4 != sizeof(*resume_data->cmd)) {
 462                 IWL_ERR(priv, "rx wrong size data\n");
 463                 return true;
 464         }
 465         memcpy(resume_data->cmd, pkt->data, sizeof(*resume_data->cmd));
 466         resume_data->valid = true;
 467
 468         return true;
 469 }
 470
 471 static int iwlagn_mac_resume(struct ieee80211_hw *hw)
 472 {
 473         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 474         struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
 475         struct ieee80211_vif *vif;
 476         u32 base;
 477         int ret;
 478         enum iwl_d3_status d3_status;
 479         struct error_table_start {
 480                 /* cf. struct iwl_error_event_table */
 481                 u32 valid;
 482                 u32 error_id;
 483         } err_info;
 484         struct iwl_notification_wait status_wait;
 485         static const u8 status_cmd[] = {
 486                 REPLY_WOWLAN_GET_STATUS,
 487         };
 488         struct iwlagn_wowlan_status status_data = {};
 489         struct iwl_resume_data resume_data = {
 490                 .priv = priv,
 491                 .cmd = &status_data,
 492                 .valid = false,
 493         };
 494         struct cfg80211_wowlan_wakeup wakeup = {
 495                 .pattern_idx = -1,
 496         };
 497 #ifdef CONFIG_IWLWIFI_DEBUGFS
 498         const struct fw_img *img;
 499 #endif
 500
 501         IWL_DEBUG_MAC80211(priv, "enter\n");
 502         mutex_lock(&priv->mutex);
 503
 504         /* we'll clear ctx->vif during iwlagn_prepare_restart() */
 505         vif = ctx->vif;
 506
 507         ret = iwl_trans_d3_resume(priv->trans, &d3_status, false);
 508         if (ret)
 509                 goto out_unlock;
 510
 511         if (d3_status != IWL_D3_STATUS_ALIVE) {
 512                 IWL_INFO(priv, "Device was reset during suspend\n");
 513                 goto out_unlock;
 514         }
 515
 516         /* uCode is no longer operating by itself */
 517         iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR,
 518                     CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
 519
 520         base = priv->device_pointers.error_event_table;
 521         if (!iwlagn_hw_valid_rtc_data_addr(base)) {
 522                 IWL_WARN(priv, "Invalid error table during resume!\n");
 523                 goto out_unlock;
 524         }
 525
 526         iwl_trans_read_mem_bytes(priv->trans, base,
 527                                  &err_info, sizeof(err_info));
 528
 529         if (err_info.valid) {
 530                 IWL_INFO(priv, "error table is valid (%d, 0x%x)\n",
 531                          err_info.valid, err_info.error_id);
 532                 if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
 533                         wakeup.rfkill_release = true;
 534                         ieee80211_report_wowlan_wakeup(vif, &wakeup,
 535                                                        GFP_KERNEL);
 536                 }
 537                 goto out_unlock;
 538         }
 539
 540 #ifdef CONFIG_IWLWIFI_DEBUGFS
 541         img = &priv->fw->img[IWL_UCODE_WOWLAN];
 542         if (!priv->wowlan_sram)
 543                 priv->wowlan_sram =
 544                         kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len,
 545                                 GFP_KERNEL);
 546
 547         if (priv->wowlan_sram)
 548                 iwl_trans_read_mem(priv->trans, 0x800000,
 549                                    priv->wowlan_sram,
 550                                    img->sec[IWL_UCODE_SECTION_DATA].len / 4);
 551 #endif
 552
 553         /*
 554          * This is very strange. The GET_STATUS command is sent but the device
 555          * doesn't reply properly, it seems it doesn't close the RBD so one is
 556          * always left open ... As a result, we need to send another command
 557          * and have to reset the driver afterwards. As we need to switch to
 558          * runtime firmware again that'll happen.
 559          */
 560
 561         iwl_init_notification_wait(&priv->notif_wait, &status_wait, status_cmd,
 562                                    ARRAY_SIZE(status_cmd), iwl_resume_status_fn,
 563                                    &resume_data);
 564
 565         iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_GET_STATUS, CMD_ASYNC, 0, NULL);
 566         iwl_dvm_send_cmd_pdu(priv, REPLY_ECHO, CMD_ASYNC, 0, NULL);
 567         /* an RBD is left open in the firmware now! */
 568
 569         ret = iwl_wait_notification(&priv->notif_wait, &status_wait, HZ/5);
 570         if (ret)
 571                 goto out_unlock;
 572
 573         if (resume_data.valid && priv->contexts[IWL_RXON_CTX_BSS].vif) {
 574                 u32 reasons = le32_to_cpu(status_data.wakeup_reason);
 575                 struct cfg80211_wowlan_wakeup *wakeup_report;
 576
 577                 IWL_INFO(priv, "WoWLAN wakeup reason(s): 0x%.8x\n", reasons);
 578
 579                 if (reasons) {
 580                         if (reasons & IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET)
 581                                 wakeup.magic_pkt = true;
 582                         if (reasons & IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH)
 583                                 wakeup.pattern_idx = status_data.pattern_number;
 584                         if (reasons & (IWLAGN_WOWLAN_WAKEUP_BEACON_MISS |
 585                                        IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE))
 586                                 wakeup.disconnect = true;
 587                         if (reasons & IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL)
 588                                 wakeup.gtk_rekey_failure = true;
 589                         if (reasons & IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ)
 590                                 wakeup.eap_identity_req = true;
 591                         if (reasons & IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE)
 592                                 wakeup.four_way_handshake = true;
 593                         wakeup_report = &wakeup;
 594                 } else {
 595                         wakeup_report = NULL;
 596                 }
 597
 598                 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
 599         }
 600
 601         priv->wowlan = false;
 602
 603         iwlagn_prepare_restart(priv);
 604
 605         memset((void *)&ctx->active, 0, sizeof(ctx->active));
 606         iwl_connection_init_rx_config(priv, ctx);
 607         iwlagn_set_rxon_chain(priv, ctx);
 608
 609  out_unlock:
 610         mutex_unlock(&priv->mutex);
 611         IWL_DEBUG_MAC80211(priv, "leave\n");
 612
 613         ieee80211_resume_disconnect(vif);
 614
 615         return 1;
 616 }
 617
 618 static void iwlagn_mac_set_wakeup(struct ieee80211_hw *hw, bool enabled)
 619 {
 620         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 621
 622         device_set_wakeup_enable(priv->trans->dev, enabled);
 623 }
 624 #endif
 625
 626 static void iwlagn_mac_tx(struct ieee80211_hw *hw,
 627                           struct ieee80211_tx_control *control,
 628                           struct sk_buff *skb)
 629 {
 630         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 631
 632         if (iwlagn_tx_skb(priv, control->sta, skb))
 633                 ieee80211_free_txskb(hw, skb);
 634 }
 635
 636 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
 637                                        struct ieee80211_vif *vif,
 638                                        struct ieee80211_key_conf *keyconf,
 639                                        struct ieee80211_sta *sta,
 640                                        u32 iv32, u16 *phase1key)
 641 {
 642         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 643
 644         iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key);
 645 }
 646
 647 static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 648                               struct ieee80211_vif *vif,
 649                               struct ieee80211_sta *sta,
 650                               struct ieee80211_key_conf *key)
 651 {
 652         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 653         struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
 654         struct iwl_rxon_context *ctx = vif_priv->ctx;
 655         int ret;
 656         bool is_default_wep_key = false;
 657
 658         IWL_DEBUG_MAC80211(priv, "enter\n");
 659
 660         if (iwlwifi_mod_params.sw_crypto) {
 661                 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
 662                 return -EOPNOTSUPP;
 663         }
 664
 665         switch (key->cipher) {
 666         case WLAN_CIPHER_SUITE_TKIP:
 667                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
 668                 /* fall through */
 669         case WLAN_CIPHER_SUITE_CCMP:
 670                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
 671                 break;
 672         default:
 673                 break;
 674         }
 675
 676         /*
 677          * We could program these keys into the hardware as well, but we
 678          * don't expect much multicast traffic in IBSS and having keys
 679          * for more stations is probably more useful.
 680          *
 681          * Mark key TX-only and return 0.
 682          */
 683         if (vif->type == NL80211_IFTYPE_ADHOC &&
 684             !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
 685                 key->hw_key_idx = WEP_INVALID_OFFSET;
 686                 return 0;
 687         }
 688
 689         /* If they key was TX-only, accept deletion */
 690         if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET)
 691                 return 0;
 692
 693         mutex_lock(&priv->mutex);
 694         iwl_scan_cancel_timeout(priv, 100);
 695
 696         BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT);
 697
 698         /*
 699          * If we are getting WEP group key and we didn't receive any key mapping
 700          * so far, we are in legacy wep mode (group key only), otherwise we are
 701          * in 1X mode.
 702          * In legacy wep mode, we use another host command to the uCode.
 703          */
 704         if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 705              key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) {
 706                 if (cmd == SET_KEY)
 707                         is_default_wep_key = !ctx->key_mapping_keys;
 708                 else
 709                         is_default_wep_key =
 710                                 key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT;
 711         }
 712
 713
 714         switch (cmd) {
 715         case SET_KEY:
 716                 if (is_default_wep_key) {
 717                         ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
 718                         break;
 719                 }
 720                 ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta);
 721                 if (ret) {
 722                         /*
 723                          * can't add key for RX, but we don't need it
 724                          * in the device for TX so still return 0
 725                          */
 726                         ret = 0;
 727                         key->hw_key_idx = WEP_INVALID_OFFSET;
 728                 }
 729
 730                 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
 731                 break;
 732         case DISABLE_KEY:
 733                 if (is_default_wep_key)
 734                         ret = iwl_remove_default_wep_key(priv, ctx, key);
 735                 else
 736                         ret = iwl_remove_dynamic_key(priv, ctx, key, sta);
 737
 738                 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
 739                 break;
 740         default:
 741                 ret = -EINVAL;
 742         }
 743
 744         mutex_unlock(&priv->mutex);
 745         IWL_DEBUG_MAC80211(priv, "leave\n");
 746
 747         return ret;
 748 }
 749
 750 static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
 751                                    struct ieee80211_vif *vif,
 752                                    enum ieee80211_ampdu_mlme_action action,
 753                                    struct ieee80211_sta *sta, u16 tid, u16 *ssn,
 754                                    u8 buf_size)
 755 {
 756         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 757         int ret = -EINVAL;
 758         struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
 759
 760         IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
 761                      sta->addr, tid);
 762
 763         if (!(priv->nvm_data->sku_cap_11n_enable))
 764                 return -EACCES;
 765
 766         IWL_DEBUG_MAC80211(priv, "enter\n");
 767         mutex_lock(&priv->mutex);
 768
 769         switch (action) {
 770         case IEEE80211_AMPDU_RX_START:
 771                 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
 772                         break;
 773                 IWL_DEBUG_HT(priv, "start Rx\n");
 774                 ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
 775                 break;
 776         case IEEE80211_AMPDU_RX_STOP:
 777                 IWL_DEBUG_HT(priv, "stop Rx\n");
 778                 ret = iwl_sta_rx_agg_stop(priv, sta, tid);
 779                 break;
 780         case IEEE80211_AMPDU_TX_START:
 781                 if (!priv->trans->ops->txq_enable)
 782                         break;
 783                 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
 784                         break;
 785                 IWL_DEBUG_HT(priv, "start Tx\n");
 786                 ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
 787                 break;
 788         case IEEE80211_AMPDU_TX_STOP_FLUSH:
 789         case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 790                 IWL_DEBUG_HT(priv, "Flush Tx\n");
 791                 ret = iwlagn_tx_agg_flush(priv, vif, sta, tid);
 792                 break;
 793         case IEEE80211_AMPDU_TX_STOP_CONT:
 794                 IWL_DEBUG_HT(priv, "stop Tx\n");
 795                 ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
 796                 if ((ret == 0) && (priv->agg_tids_count > 0)) {
 797                         priv->agg_tids_count--;
 798                         IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
 799                                      priv->agg_tids_count);
 800                 }
 801                 if (!priv->agg_tids_count &&
 802                     priv->hw_params.use_rts_for_aggregation) {
 803                         /*
 804                          * switch off RTS/CTS if it was previously enabled
 805                          */
 806                         sta_priv->lq_sta.lq.general_params.flags &=
 807                                 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
 808                         iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
 809                                         &sta_priv->lq_sta.lq, CMD_ASYNC, false);
 810                 }
 811                 break;
 812         case IEEE80211_AMPDU_TX_OPERATIONAL:
 813                 ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size);
 814                 break;
 815         }
 816         mutex_unlock(&priv->mutex);
 817         IWL_DEBUG_MAC80211(priv, "leave\n");
 818         return ret;
 819 }
 820
 821 static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
 822                               struct ieee80211_vif *vif,
 823                               struct ieee80211_sta *sta)
 824 {
 825         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 826         struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
 827         struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
 828         bool is_ap = vif->type == NL80211_IFTYPE_STATION;
 829         int ret;
 830         u8 sta_id;
 831
 832         IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
 833                         sta->addr);
 834         sta_priv->sta_id = IWL_INVALID_STATION;
 835
 836         atomic_set(&sta_priv->pending_frames, 0);
 837         if (vif->type == NL80211_IFTYPE_AP)
 838                 sta_priv->client = true;
 839
 840         ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
 841                                      is_ap, sta, &sta_id);
 842         if (ret) {
 843                 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
 844                         sta->addr, ret);
 845                 /* Should we return success if return code is EEXIST ? */
 846                 return ret;
 847         }
 848
 849         sta_priv->sta_id = sta_id;
 850
 851         return 0;
 852 }
 853
 854 static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw,
 855                                  struct ieee80211_vif *vif,
 856                                  struct ieee80211_sta *sta)
 857 {
 858         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 859         struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
 860         int ret;
 861
 862         IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr);
 863
 864         if (vif->type == NL80211_IFTYPE_STATION) {
 865                 /*
 866                  * Station will be removed from device when the RXON
 867                  * is set to unassociated -- just deactivate it here
 868                  * to avoid re-programming it.
 869                  */
 870                 ret = 0;
 871                 iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr);
 872         } else {
 873                 ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr);
 874                 if (ret)
 875                         IWL_DEBUG_QUIET_RFKILL(priv,
 876                                 "Error removing station %pM\n", sta->addr);
 877         }
 878         return ret;
 879 }
 880
 881 static int iwlagn_mac_sta_state(struct ieee80211_hw *hw,
 882                                 struct ieee80211_vif *vif,
 883                                 struct ieee80211_sta *sta,
 884                                 enum ieee80211_sta_state old_state,
 885                                 enum ieee80211_sta_state new_state)
 886 {
 887         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 888         struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
 889         enum {
 890                 NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT,
 891         } op = NONE;
 892         int ret;
 893
 894         IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n",
 895                            sta->addr, old_state, new_state);
 896
 897         mutex_lock(&priv->mutex);
 898         if (vif->type == NL80211_IFTYPE_STATION) {
 899                 if (old_state == IEEE80211_STA_NOTEXIST &&
 900                     new_state == IEEE80211_STA_NONE)
 901                         op = ADD;
 902                 else if (old_state == IEEE80211_STA_NONE &&
 903                          new_state == IEEE80211_STA_NOTEXIST)
 904                         op = REMOVE;
 905                 else if (old_state == IEEE80211_STA_AUTH &&
 906                          new_state == IEEE80211_STA_ASSOC)
 907                         op = HT_RATE_INIT;
 908         } else {
 909                 if (old_state == IEEE80211_STA_AUTH &&
 910                     new_state == IEEE80211_STA_ASSOC)
 911                         op = ADD_RATE_INIT;
 912                 else if (old_state == IEEE80211_STA_ASSOC &&
 913                          new_state == IEEE80211_STA_AUTH)
 914                         op = REMOVE;
 915         }
 916
 917         switch (op) {
 918         case ADD:
 919                 ret = iwlagn_mac_sta_add(hw, vif, sta);
 920                 if (ret)
 921                         break;
 922                 /*
 923                  * Clear the in-progress flag, the AP station entry was added
 924                  * but we'll initialize LQ only when we've associated (which
 925                  * would also clear the in-progress flag). This is necessary
 926                  * in case we never initialize LQ because association fails.
 927                  */
 928                 spin_lock_bh(&priv->sta_lock);
 929                 priv->stations[iwl_sta_id(sta)].used &=
 930                         ~IWL_STA_UCODE_INPROGRESS;
 931                 spin_unlock_bh(&priv->sta_lock);
 932                 break;
 933         case REMOVE:
 934                 ret = iwlagn_mac_sta_remove(hw, vif, sta);
 935                 break;
 936         case ADD_RATE_INIT:
 937                 ret = iwlagn_mac_sta_add(hw, vif, sta);
 938                 if (ret)
 939                         break;
 940                 /* Initialize rate scaling */
 941                 IWL_DEBUG_INFO(priv,
 942                                "Initializing rate scaling for station %pM\n",
 943                                sta->addr);
 944                 iwl_rs_rate_init(priv, sta, iwl_sta_id(sta));
 945                 ret = 0;
 946                 break;
 947         case HT_RATE_INIT:
 948                 /* Initialize rate scaling */
 949                 ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta);
 950                 if (ret)
 951                         break;
 952                 IWL_DEBUG_INFO(priv,
 953                                "Initializing rate scaling for station %pM\n",
 954                                sta->addr);
 955                 iwl_rs_rate_init(priv, sta, iwl_sta_id(sta));
 956                 ret = 0;
 957                 break;
 958         default:
 959                 ret = 0;
 960                 break;
 961         }
 962
 963         /*
 964          * mac80211 might WARN if we fail, but due the way we
 965          * (badly) handle hard rfkill, we might fail here
 966          */
 967         if (iwl_is_rfkill(priv))
 968                 ret = 0;
 969
 970         mutex_unlock(&priv->mutex);
 971         IWL_DEBUG_MAC80211(priv, "leave\n");
 972
 973         return ret;
 974 }
 975
 976 static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
 977                                       struct ieee80211_channel_switch *ch_switch)
 978 {
 979         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
 980         struct ieee80211_conf *conf = &hw->conf;
 981         struct ieee80211_channel *channel = ch_switch->chandef.chan;
 982         struct iwl_ht_config *ht_conf = &priv->current_ht_config;
 983         /*
 984          * MULTI-FIXME
 985          * When we add support for multiple interfaces, we need to
 986          * revisit this. The channel switch command in the device
 987          * only affects the BSS context, but what does that really
 988          * mean? And what if we get a CSA on the second interface?
 989          * This needs a lot of work.
 990          */
 991         struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
 992         u16 ch;
 993
 994         IWL_DEBUG_MAC80211(priv, "enter\n");
 995
 996         mutex_lock(&priv->mutex);
 997
 998         if (iwl_is_rfkill(priv))
 999                 goto out;
1000
1001         if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
1002             test_bit(STATUS_SCANNING, &priv->status) ||
1003             test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
1004                 goto out;
1005
1006         if (!iwl_is_associated_ctx(ctx))
1007                 goto out;
1008
1009         if (!priv->lib->set_channel_switch)
1010                 goto out;
1011
1012         ch = channel->hw_value;
1013         if (le16_to_cpu(ctx->active.channel) == ch)
1014                 goto out;
1015
1016         priv->current_ht_config.smps = conf->smps_mode;
1017
1018         /* Configure HT40 channels */
1019         switch (cfg80211_get_chandef_type(&ch_switch->chandef)) {
1020         case NL80211_CHAN_NO_HT:
1021         case NL80211_CHAN_HT20:
1022                 ctx->ht.is_40mhz = false;
1023                 ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
1024                 break;
1025         case NL80211_CHAN_HT40MINUS:
1026                 ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
1027                 ctx->ht.is_40mhz = true;
1028                 break;
1029         case NL80211_CHAN_HT40PLUS:
1030                 ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
1031                 ctx->ht.is_40mhz = true;
1032                 break;
1033         }
1034
1035         if ((le16_to_cpu(ctx->staging.channel) != ch))
1036                 ctx->staging.flags = 0;
1037
1038         iwl_set_rxon_channel(priv, channel, ctx);
1039         iwl_set_rxon_ht(priv, ht_conf);
1040         iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif);
1041
1042         /*
1043          * at this point, staging_rxon has the
1044          * configuration for channel switch
1045          */
1046         set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
1047         priv->switch_channel = cpu_to_le16(ch);
1048         if (priv->lib->set_channel_switch(priv, ch_switch)) {
1049                 clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
1050                 priv->switch_channel = 0;
1051                 ieee80211_chswitch_done(ctx->vif, false);
1052         }
1053
1054 out:
1055         mutex_unlock(&priv->mutex);
1056         IWL_DEBUG_MAC80211(priv, "leave\n");
1057 }
1058
1059 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
1060 {
1061         /*
1062          * MULTI-FIXME
1063          * See iwlagn_mac_channel_switch.
1064          */
1065         struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
1066
1067         if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1068                 return;
1069
1070         if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
1071                 ieee80211_chswitch_done(ctx->vif, is_success);
1072 }
1073
1074 static void iwlagn_configure_filter(struct ieee80211_hw *hw,
1075                                     unsigned int changed_flags,
1076                                     unsigned int *total_flags,
1077                                     u64 multicast)
1078 {
1079         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1080         __le32 filter_or = 0, filter_nand = 0;
1081         struct iwl_rxon_context *ctx;
1082
1083 #define CHK(test, flag) do { \
1084         if (*total_flags & (test))              \
1085                 filter_or |= (flag);            \
1086         else                                    \
1087                 filter_nand |= (flag);          \
1088         } while (0)
1089
1090         IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
1091                         changed_flags, *total_flags);
1092
1093         CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
1094         /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
1095         CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
1096         CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
1097
1098 #undef CHK
1099
1100         mutex_lock(&priv->mutex);
1101
1102         for_each_context(priv, ctx) {
1103                 ctx->staging.filter_flags &= ~filter_nand;
1104                 ctx->staging.filter_flags |= filter_or;
1105
1106                 /*
1107                  * Not committing directly because hardware can perform a scan,
1108                  * but we'll eventually commit the filter flags change anyway.
1109                  */
1110         }
1111
1112         mutex_unlock(&priv->mutex);
1113
1114         /*
1115          * Receiving all multicast frames is always enabled by the
1116          * default flags setup in iwl_connection_init_rx_config()
1117          * since we currently do not support programming multicast
1118          * filters into the device.
1119          */
1120         *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
1121                         FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
1122 }
1123
1124 static void iwlagn_mac_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
1125 {
1126         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1127
1128         mutex_lock(&priv->mutex);
1129         IWL_DEBUG_MAC80211(priv, "enter\n");
1130
1131         if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
1132                 IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n");
1133                 goto done;
1134         }
1135         if (iwl_is_rfkill(priv)) {
1136                 IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n");
1137                 goto done;
1138         }
1139
1140         /*
1141          * mac80211 will not push any more frames for transmit
1142          * until the flush is completed
1143          */
1144         if (drop) {
1145                 IWL_DEBUG_MAC80211(priv, "send flush command\n");
1146                 if (iwlagn_txfifo_flush(priv, 0)) {
1147                         IWL_ERR(priv, "flush request fail\n");
1148                         goto done;
1149                 }
1150         }
1151         IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n");
1152         iwl_trans_wait_tx_queue_empty(priv->trans);
1153 done:
1154         mutex_unlock(&priv->mutex);
1155         IWL_DEBUG_MAC80211(priv, "leave\n");
1156 }
1157
1158 static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw,
1159                                      struct ieee80211_vif *vif,
1160                                      struct ieee80211_channel *channel,
1161                                      int duration,
1162                                      enum ieee80211_roc_type type)
1163 {
1164         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1165         struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
1166         int err = 0;
1167
1168         if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
1169                 return -EOPNOTSUPP;
1170
1171         if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)))
1172                 return -EOPNOTSUPP;
1173
1174         IWL_DEBUG_MAC80211(priv, "enter\n");
1175         mutex_lock(&priv->mutex);
1176
1177         if (test_bit(STATUS_SCAN_HW, &priv->status)) {
1178                 /* mac80211 should not scan while ROC or ROC while scanning */
1179                 if (WARN_ON_ONCE(priv->scan_type != IWL_SCAN_RADIO_RESET)) {
1180                         err = -EBUSY;
1181                         goto out;
1182                 }
1183
1184                 iwl_scan_cancel_timeout(priv, 100);
1185
1186                 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
1187                         err = -EBUSY;
1188                         goto out;
1189                 }
1190         }
1191
1192         priv->hw_roc_channel = channel;
1193         /* convert from ms to TU */
1194         priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024);
1195         priv->hw_roc_start_notified = false;
1196         cancel_delayed_work(&priv->hw_roc_disable_work);
1197
1198         if (!ctx->is_active) {
1199                 static const struct iwl_qos_info default_qos_data = {
1200                         .def_qos_parm = {
1201                                 .ac[0] = {
1202                                         .cw_min = cpu_to_le16(3),
1203                                         .cw_max = cpu_to_le16(7),
1204                                         .aifsn = 2,
1205                                         .edca_txop = cpu_to_le16(1504),
1206                                 },
1207                                 .ac[1] = {
1208                                         .cw_min = cpu_to_le16(7),
1209                                         .cw_max = cpu_to_le16(15),
1210                                         .aifsn = 2,
1211                                         .edca_txop = cpu_to_le16(3008),
1212                                 },
1213                                 .ac[2] = {
1214                                         .cw_min = cpu_to_le16(15),
1215                                         .cw_max = cpu_to_le16(1023),
1216                                         .aifsn = 3,
1217                                 },
1218                                 .ac[3] = {
1219                                         .cw_min = cpu_to_le16(15),
1220                                         .cw_max = cpu_to_le16(1023),
1221                                         .aifsn = 7,
1222                                 },
1223                         },
1224                 };
1225
1226                 ctx->is_active = true;
1227                 ctx->qos_data = default_qos_data;
1228                 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
1229                 memcpy(ctx->staging.node_addr,
1230                        priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
1231                        ETH_ALEN);
1232                 memcpy(ctx->staging.bssid_addr,
1233                        priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
1234                        ETH_ALEN);
1235                 err = iwlagn_commit_rxon(priv, ctx);
1236                 if (err)
1237                         goto out;
1238                 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK |
1239                                              RXON_FILTER_PROMISC_MSK |
1240                                              RXON_FILTER_CTL2HOST_MSK;
1241
1242                 err = iwlagn_commit_rxon(priv, ctx);
1243                 if (err) {
1244                         iwlagn_disable_roc(priv);
1245                         goto out;
1246                 }
1247                 priv->hw_roc_setup = true;
1248         }
1249
1250         err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band);
1251         if (err)
1252                 iwlagn_disable_roc(priv);
1253
1254  out:
1255         mutex_unlock(&priv->mutex);
1256         IWL_DEBUG_MAC80211(priv, "leave\n");
1257
1258         return err;
1259 }
1260
1261 static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
1262 {
1263         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1264
1265         if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
1266                 return -EOPNOTSUPP;
1267
1268         IWL_DEBUG_MAC80211(priv, "enter\n");
1269         mutex_lock(&priv->mutex);
1270         iwl_scan_cancel_timeout(priv, priv->hw_roc_duration);
1271         iwlagn_disable_roc(priv);
1272         mutex_unlock(&priv->mutex);
1273         IWL_DEBUG_MAC80211(priv, "leave\n");
1274
1275         return 0;
1276 }
1277
1278 static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw,
1279                                      struct ieee80211_vif *vif,
1280                                      enum ieee80211_rssi_event rssi_event)
1281 {
1282         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1283
1284         IWL_DEBUG_MAC80211(priv, "enter\n");
1285         mutex_lock(&priv->mutex);
1286
1287         if (priv->lib->bt_params &&
1288             priv->lib->bt_params->advanced_bt_coexist) {
1289                 if (rssi_event == RSSI_EVENT_LOW)
1290                         priv->bt_enable_pspoll = true;
1291                 else if (rssi_event == RSSI_EVENT_HIGH)
1292                         priv->bt_enable_pspoll = false;
1293
1294                 iwlagn_send_advance_bt_config(priv);
1295         } else {
1296                 IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled,"
1297                                 "ignoring RSSI callback\n");
1298         }
1299
1300         mutex_unlock(&priv->mutex);
1301         IWL_DEBUG_MAC80211(priv, "leave\n");
1302 }
1303
1304 static int iwlagn_mac_set_tim(struct ieee80211_hw *hw,
1305                               struct ieee80211_sta *sta, bool set)
1306 {
1307         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1308
1309         queue_work(priv->workqueue, &priv->beacon_update);
1310
1311         return 0;
1312 }
1313
1314 static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw,
1315                               struct ieee80211_vif *vif, u16 queue,
1316                               const struct ieee80211_tx_queue_params *params)
1317 {
1318         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1319         struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1320         struct iwl_rxon_context *ctx = vif_priv->ctx;
1321         int q;
1322
1323         if (WARN_ON(!ctx))
1324                 return -EINVAL;
1325
1326         IWL_DEBUG_MAC80211(priv, "enter\n");
1327
1328         if (!iwl_is_ready_rf(priv)) {
1329                 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
1330                 return -EIO;
1331         }
1332
1333         if (queue >= AC_NUM) {
1334                 IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue);
1335                 return 0;
1336         }
1337
1338         q = AC_NUM - 1 - queue;
1339
1340         mutex_lock(&priv->mutex);
1341
1342         ctx->qos_data.def_qos_parm.ac[q].cw_min =
1343                 cpu_to_le16(params->cw_min);
1344         ctx->qos_data.def_qos_parm.ac[q].cw_max =
1345                 cpu_to_le16(params->cw_max);
1346         ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
1347         ctx->qos_data.def_qos_parm.ac[q].edca_txop =
1348                         cpu_to_le16((params->txop * 32));
1349
1350         ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0;
1351
1352         mutex_unlock(&priv->mutex);
1353
1354         IWL_DEBUG_MAC80211(priv, "leave\n");
1355         return 0;
1356 }
1357
1358 static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw)
1359 {
1360         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1361
1362         return priv->ibss_manager == IWL_IBSS_MANAGER;
1363 }
1364
1365 static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
1366 {
1367         iwl_connection_init_rx_config(priv, ctx);
1368
1369         iwlagn_set_rxon_chain(priv, ctx);
1370
1371         return iwlagn_commit_rxon(priv, ctx);
1372 }
1373
1374 static int iwl_setup_interface(struct iwl_priv *priv,
1375                                struct iwl_rxon_context *ctx)
1376 {
1377         struct ieee80211_vif *vif = ctx->vif;
1378         int err, ac;
1379
1380         lockdep_assert_held(&priv->mutex);
1381
1382         /*
1383          * This variable will be correct only when there's just
1384          * a single context, but all code using it is for hardware
1385          * that supports only one context.
1386          */
1387         priv->iw_mode = vif->type;
1388
1389         ctx->is_active = true;
1390
1391         err = iwl_set_mode(priv, ctx);
1392         if (err) {
1393                 if (!ctx->always_active)
1394                         ctx->is_active = false;
1395                 return err;
1396         }
1397
1398         if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist &&
1399             vif->type == NL80211_IFTYPE_ADHOC) {
1400                 /*
1401                  * pretend to have high BT traffic as long as we
1402                  * are operating in IBSS mode, as this will cause
1403                  * the rate scaling etc. to behave as intended.
1404                  */
1405                 priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
1406         }
1407
1408         /* set up queue mappings */
1409         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
1410                 vif->hw_queue[ac] = ctx->ac_to_queue[ac];
1411
1412         if (vif->type == NL80211_IFTYPE_AP)
1413                 vif->cab_queue = ctx->mcast_queue;
1414         else
1415                 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
1416
1417         return 0;
1418 }
1419
1420 static int iwlagn_mac_add_interface(struct ieee80211_hw *hw,
1421                                     struct ieee80211_vif *vif)
1422 {
1423         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1424         struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1425         struct iwl_rxon_context *tmp, *ctx = NULL;
1426         int err;
1427         enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif);
1428         bool reset = false;
1429
1430         IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n",
1431                            viftype, vif->addr);
1432
1433         cancel_delayed_work_sync(&priv->hw_roc_disable_work);
1434
1435         mutex_lock(&priv->mutex);
1436
1437         iwlagn_disable_roc(priv);
1438
1439         if (!iwl_is_ready_rf(priv)) {
1440                 IWL_WARN(priv, "Try to add interface when device not ready\n");
1441                 err = -EINVAL;
1442                 goto out;
1443         }
1444
1445         for_each_context(priv, tmp) {
1446                 u32 possible_modes =
1447                         tmp->interface_modes | tmp->exclusive_interface_modes;
1448
1449                 if (tmp->vif) {
1450                         /* On reset we need to add the same interface again */
1451                         if (tmp->vif == vif) {
1452                                 reset = true;
1453                                 ctx = tmp;
1454                                 break;
1455                         }
1456
1457                         /* check if this busy context is exclusive */
1458                         if (tmp->exclusive_interface_modes &
1459                                                 BIT(tmp->vif->type)) {
1460                                 err = -EINVAL;
1461                                 goto out;
1462                         }
1463                         continue;
1464                 }
1465
1466                 if (!(possible_modes & BIT(viftype)))
1467                         continue;
1468
1469                 /* have maybe usable context w/o interface */
1470                 ctx = tmp;
1471                 break;
1472         }
1473
1474         if (!ctx) {
1475                 err = -EOPNOTSUPP;
1476                 goto out;
1477         }
1478
1479         vif_priv->ctx = ctx;
1480         ctx->vif = vif;
1481
1482         /*
1483          * In SNIFFER device type, the firmware reports the FCS to
1484          * the host, rather than snipping it off. Unfortunately,
1485          * mac80211 doesn't (yet) provide a per-packet flag for
1486          * this, so that we have to set the hardware flag based
1487          * on the interfaces added. As the monitor interface can
1488          * only be present by itself, and will be removed before
1489          * other interfaces are added, this is safe.
1490          */
1491         if (vif->type == NL80211_IFTYPE_MONITOR)
1492                 priv->hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS;
1493         else
1494                 priv->hw->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS;
1495
1496         err = iwl_setup_interface(priv, ctx);
1497         if (!err || reset)
1498                 goto out;
1499
1500         ctx->vif = NULL;
1501         priv->iw_mode = NL80211_IFTYPE_STATION;
1502  out:
1503         mutex_unlock(&priv->mutex);
1504
1505         IWL_DEBUG_MAC80211(priv, "leave\n");
1506         return err;
1507 }
1508
1509 static void iwl_teardown_interface(struct iwl_priv *priv,
1510                                    struct ieee80211_vif *vif,
1511                                    bool mode_change)
1512 {
1513         struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
1514
1515         lockdep_assert_held(&priv->mutex);
1516
1517         if (priv->scan_vif == vif) {
1518                 iwl_scan_cancel_timeout(priv, 200);
1519                 iwl_force_scan_end(priv);
1520         }
1521
1522         if (!mode_change) {
1523                 iwl_set_mode(priv, ctx);
1524                 if (!ctx->always_active)
1525                         ctx->is_active = false;
1526         }
1527
1528         /*
1529          * When removing the IBSS interface, overwrite the
1530          * BT traffic load with the stored one from the last
1531          * notification, if any. If this is a device that
1532          * doesn't implement this, this has no effect since
1533          * both values are the same and zero.
1534          */
1535         if (vif->type == NL80211_IFTYPE_ADHOC)
1536                 priv->bt_traffic_load = priv->last_bt_traffic_load;
1537 }
1538
1539 static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw,
1540                               struct ieee80211_vif *vif)
1541 {
1542         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1543         struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
1544
1545         IWL_DEBUG_MAC80211(priv, "enter\n");
1546
1547         mutex_lock(&priv->mutex);
1548
1549         if (WARN_ON(ctx->vif != vif)) {
1550                 struct iwl_rxon_context *tmp;
1551                 IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif);
1552                 for_each_context(priv, tmp)
1553                         IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n",
1554                                 tmp->ctxid, tmp, tmp->vif);
1555         }
1556         ctx->vif = NULL;
1557
1558         iwl_teardown_interface(priv, vif, false);
1559
1560         mutex_unlock(&priv->mutex);
1561
1562         IWL_DEBUG_MAC80211(priv, "leave\n");
1563
1564 }
1565
1566 static int iwlagn_mac_change_interface(struct ieee80211_hw *hw,
1567                                        struct ieee80211_vif *vif,
1568                                        enum nl80211_iftype newtype, bool newp2p)
1569 {
1570         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1571         struct iwl_rxon_context *ctx, *tmp;
1572         enum nl80211_iftype newviftype = newtype;
1573         u32 interface_modes;
1574         int err;
1575
1576         IWL_DEBUG_MAC80211(priv, "enter\n");
1577
1578         newtype = ieee80211_iftype_p2p(newtype, newp2p);
1579
1580         mutex_lock(&priv->mutex);
1581
1582         ctx = iwl_rxon_ctx_from_vif(vif);
1583
1584         /*
1585          * To simplify this code, only support changes on the
1586          * BSS context. The PAN context is usually reassigned
1587          * by creating/removing P2P interfaces anyway.
1588          */
1589         if (ctx->ctxid != IWL_RXON_CTX_BSS) {
1590                 err = -EBUSY;
1591                 goto out;
1592         }
1593
1594         if (!ctx->vif || !iwl_is_ready_rf(priv)) {
1595                 /*
1596                  * Huh? But wait ... this can maybe happen when
1597                  * we're in the middle of a firmware restart!
1598                  */
1599                 err = -EBUSY;
1600                 goto out;
1601         }
1602
1603         /* Check if the switch is supported in the same context */
1604         interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes;
1605         if (!(interface_modes & BIT(newtype))) {
1606                 err = -EBUSY;
1607                 goto out;
1608         }
1609
1610         if (ctx->exclusive_interface_modes & BIT(newtype)) {
1611                 for_each_context(priv, tmp) {
1612                         if (ctx == tmp)
1613                                 continue;
1614
1615                         if (!tmp->is_active)
1616                                 continue;
1617
1618                         /*
1619                          * The current mode switch would be exclusive, but
1620                          * another context is active ... refuse the switch.
1621                          */
1622                         err = -EBUSY;
1623                         goto out;
1624                 }
1625         }
1626
1627         /* success */
1628         iwl_teardown_interface(priv, vif, true);
1629         vif->type = newviftype;
1630         vif->p2p = newp2p;
1631         err = iwl_setup_interface(priv, ctx);
1632         WARN_ON(err);
1633         /*
1634          * We've switched internally, but submitting to the
1635          * device may have failed for some reason. Mask this
1636          * error, because otherwise mac80211 will not switch
1637          * (and set the interface type back) and we'll be
1638          * out of sync with it.
1639          */
1640         err = 0;
1641
1642  out:
1643         mutex_unlock(&priv->mutex);
1644         IWL_DEBUG_MAC80211(priv, "leave\n");
1645
1646         return err;
1647 }
1648
1649 static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw,
1650                               struct ieee80211_vif *vif,
1651                               struct cfg80211_scan_request *req)
1652 {
1653         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1654         int ret;
1655
1656         IWL_DEBUG_MAC80211(priv, "enter\n");
1657
1658         if (req->n_channels == 0)
1659                 return -EINVAL;
1660
1661         mutex_lock(&priv->mutex);
1662
1663         /*
1664          * If an internal scan is in progress, just set
1665          * up the scan_request as per above.
1666          */
1667         if (priv->scan_type != IWL_SCAN_NORMAL) {
1668                 IWL_DEBUG_SCAN(priv,
1669                                "SCAN request during internal scan - defer\n");
1670                 priv->scan_request = req;
1671                 priv->scan_vif = vif;
1672                 ret = 0;
1673         } else {
1674                 priv->scan_request = req;
1675                 priv->scan_vif = vif;
1676                 /*
1677                  * mac80211 will only ask for one band at a time
1678                  * so using channels[0] here is ok
1679                  */
1680                 ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL,
1681                                         req->channels[0]->band);
1682                 if (ret) {
1683                         priv->scan_request = NULL;
1684                         priv->scan_vif = NULL;
1685                 }
1686         }
1687
1688         IWL_DEBUG_MAC80211(priv, "leave\n");
1689
1690         mutex_unlock(&priv->mutex);
1691
1692         return ret;
1693 }
1694
1695 static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
1696 {
1697         struct iwl_addsta_cmd cmd = {
1698                 .mode = STA_CONTROL_MODIFY_MSK,
1699                 .station_flags_msk = STA_FLG_PWR_SAVE_MSK,
1700                 .sta.sta_id = sta_id,
1701         };
1702
1703         iwl_send_add_sta(priv, &cmd, CMD_ASYNC);
1704 }
1705
1706 static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw,
1707                                   struct ieee80211_vif *vif,
1708                                   enum sta_notify_cmd cmd,
1709                                   struct ieee80211_sta *sta)
1710 {
1711         struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1712         struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
1713         int sta_id;
1714
1715         IWL_DEBUG_MAC80211(priv, "enter\n");
1716
1717         switch (cmd) {
1718         case STA_NOTIFY_SLEEP:
1719                 WARN_ON(!sta_priv->client);
1720                 sta_priv->asleep = true;
1721                 if (atomic_read(&sta_priv->pending_frames) > 0)
1722                         ieee80211_sta_block_awake(hw, sta, true);
1723                 break;
1724         case STA_NOTIFY_AWAKE:
1725                 WARN_ON(!sta_priv->client);
1726                 if (!sta_priv->asleep)
1727                         break;
1728                 sta_priv->asleep = false;
1729                 sta_id = iwl_sta_id(sta);
1730                 if (sta_id != IWL_INVALID_STATION)
1731                         iwl_sta_modify_ps_wake(priv, sta_id);
1732                 break;
1733         default:
1734                 break;
1735         }
1736         IWL_DEBUG_MAC80211(priv, "leave\n");
1737 }
1738
1739 struct ieee80211_ops iwlagn_hw_ops = {
1740         .tx = iwlagn_mac_tx,
1741         .start = iwlagn_mac_start,
1742         .stop = iwlagn_mac_stop,
1743 #ifdef CONFIG_PM_SLEEP
1744         .suspend = iwlagn_mac_suspend,
1745         .resume = iwlagn_mac_resume,
1746         .set_wakeup = iwlagn_mac_set_wakeup,
1747 #endif
1748         .add_interface = iwlagn_mac_add_interface,
1749         .remove_interface = iwlagn_mac_remove_interface,
1750         .change_interface = iwlagn_mac_change_interface,
1751         .config = iwlagn_mac_config,
1752         .configure_filter = iwlagn_configure_filter,
1753         .set_key = iwlagn_mac_set_key,
1754         .update_tkip_key = iwlagn_mac_update_tkip_key,
1755         .set_rekey_data = iwlagn_mac_set_rekey_data,
1756         .conf_tx = iwlagn_mac_conf_tx,
1757         .bss_info_changed = iwlagn_bss_info_changed,
1758         .ampdu_action = iwlagn_mac_ampdu_action,
1759         .hw_scan = iwlagn_mac_hw_scan,
1760         .sta_notify = iwlagn_mac_sta_notify,
1761         .sta_state = iwlagn_mac_sta_state,
1762         .channel_switch = iwlagn_mac_channel_switch,
1763         .flush = iwlagn_mac_flush,
1764         .tx_last_beacon = iwlagn_mac_tx_last_beacon,
1765         .remain_on_channel = iwlagn_mac_remain_on_channel,
1766         .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel,
1767         .rssi_callback = iwlagn_mac_rssi_callback,
1768         CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd)
1769         CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump)
1770         .set_tim = iwlagn_mac_set_tim,
1771 };
1772
1773 /* This function both allocates and initializes hw and priv. */
1774 struct ieee80211_hw *iwl_alloc_all(void)
1775 {
1776         struct iwl_priv *priv;
1777         struct iwl_op_mode *op_mode;
1778         /* mac80211 allocates memory for this device instance, including
1779          *   space for this driver's private structure */
1780         struct ieee80211_hw *hw;
1781
1782         hw = ieee80211_alloc_hw(sizeof(struct iwl_priv) +
1783                                 sizeof(struct iwl_op_mode), &iwlagn_hw_ops);
1784         if (!hw)
1785                 goto out;
1786
1787         op_mode = hw->priv;
1788         priv = IWL_OP_MODE_GET_DVM(op_mode);
1789         priv->hw = hw;
1790
1791 out:
1792         return hw;
1793 }