drivers/net/wireless/intel/iwlwifi/mvm/ops.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 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of version 2 of the GNU General Public License as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  23  * USA
  24  *
  25  * The full GNU General Public License is included in this distribution
  26  * in the file called COPYING.
  27  *
  28  * Contact Information:
  29  *  Intel Linux Wireless <linuxwifi@intel.com>
  30  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  31  *
  32  * BSD LICENSE
  33  *
  34  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  35  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  36  * All rights reserved.
  37  *
  38  * Redistribution and use in source and binary forms, with or without
  39  * modification, are permitted provided that the following conditions
  40  * are met:
  41  *
  42  *  * Redistributions of source code must retain the above copyright
  43  *    notice, this list of conditions and the following disclaimer.
  44  *  * Redistributions in binary form must reproduce the above copyright
  45  *    notice, this list of conditions and the following disclaimer in
  46  *    the documentation and/or other materials provided with the
  47  *    distribution.
  48  *  * Neither the name Intel Corporation nor the names of its
  49  *    contributors may be used to endorse or promote products derived
  50  *    from this software without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  53  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  54  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  55  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  56  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  57  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  58  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  59  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  60  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  61  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  62  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  63  *
  64  *****************************************************************************/
  65 #include <linux/module.h>
  66 #include <linux/vmalloc.h>
  67 #include <net/mac80211.h>
  68
  69 #include "iwl-notif-wait.h"
  70 #include "iwl-trans.h"
  71 #include "iwl-op-mode.h"
  72 #include "iwl-fw.h"
  73 #include "iwl-debug.h"
  74 #include "iwl-drv.h"
  75 #include "iwl-modparams.h"
  76 #include "mvm.h"
  77 #include "iwl-phy-db.h"
  78 #include "iwl-eeprom-parse.h"
  79 #include "iwl-csr.h"
  80 #include "iwl-io.h"
  81 #include "iwl-prph.h"
  82 #include "rs.h"
  83 #include "fw-api-scan.h"
  84 #include "time-event.h"
  85 #include "fw-dbg.h"
  86 #include "fw-api.h"
  87 #include "fw-api-scan.h"
  88
  89 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
  90 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  91 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
  92 MODULE_LICENSE("GPL");
  93
  94 static const struct iwl_op_mode_ops iwl_mvm_ops;
  95 static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
  96
  97 struct iwl_mvm_mod_params iwlmvm_mod_params = {
  98         .power_scheme = IWL_POWER_SCHEME_BPS,
  99         .tfd_q_hang_detect = true
 100         /* rest of fields are 0 by default */
 101 };
 102
 103 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO);
 104 MODULE_PARM_DESC(init_dbg,
 105                  "set to true to debug an ASSERT in INIT fw (default: false");
 106 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO);
 107 MODULE_PARM_DESC(power_scheme,
 108                  "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
 109 module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect,
 110                    bool, S_IRUGO);
 111 MODULE_PARM_DESC(tfd_q_hang_detect,
 112                  "TFD queues hang detection (default: true");
 113
 114 /*
 115  * module init and exit functions
 116  */
 117 static int __init iwl_mvm_init(void)
 118 {
 119         int ret;
 120
 121         ret = iwl_mvm_rate_control_register();
 122         if (ret) {
 123                 pr_err("Unable to register rate control algorithm: %d\n", ret);
 124                 return ret;
 125         }
 126
 127         ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
 128
 129         if (ret) {
 130                 pr_err("Unable to register MVM op_mode: %d\n", ret);
 131                 iwl_mvm_rate_control_unregister();
 132         }
 133
 134         return ret;
 135 }
 136 module_init(iwl_mvm_init);
 137
 138 static void __exit iwl_mvm_exit(void)
 139 {
 140         iwl_opmode_deregister("iwlmvm");
 141         iwl_mvm_rate_control_unregister();
 142 }
 143 module_exit(iwl_mvm_exit);
 144
 145 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
 146 {
 147         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 148         u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
 149         u32 reg_val = 0;
 150         u32 phy_config = iwl_mvm_get_phy_config(mvm);
 151
 152         radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
 153                          FW_PHY_CFG_RADIO_TYPE_POS;
 154         radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
 155                          FW_PHY_CFG_RADIO_STEP_POS;
 156         radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
 157                          FW_PHY_CFG_RADIO_DASH_POS;
 158
 159         /* SKU control */
 160         reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
 161                                 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
 162         reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
 163                                 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
 164
 165         /* radio configuration */
 166         reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
 167         reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
 168         reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
 169
 170         WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
 171                  ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
 172
 173         /*
 174          * TODO: Bits 7-8 of CSR in 8000 HW family set the ADC sampling, and
 175          * shouldn't be set to any non-zero value. The same is supposed to be
 176          * true of the other HW, but unsetting them (such as the 7260) causes
 177          * automatic tests to fail on seemingly unrelated errors. Need to
 178          * further investigate this, but for now we'll separate cases.
 179          */
 180         if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
 181                 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
 182
 183         iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
 184                                 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
 185                                 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
 186                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
 187                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
 188                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
 189                                 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
 190                                 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI,
 191                                 reg_val);
 192
 193         IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
 194                        radio_cfg_step, radio_cfg_dash);
 195
 196         /*
 197          * W/A : NIC is stuck in a reset state after Early PCIe power off
 198          * (PCIe power is lost before PERST# is asserted), causing ME FW
 199          * to lose ownership and not being able to obtain it back.
 200          */
 201         if (!mvm->trans->cfg->apmg_not_supported)
 202                 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
 203                                        APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
 204                                        ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
 205 }
 206
 207 struct iwl_rx_handlers {
 208         u16 cmd_id;
 209         bool async;
 210         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
 211 };
 212
 213 #define RX_HANDLER(_cmd_id, _fn, _async)        \
 214         { .cmd_id = _cmd_id , .fn = _fn , .async = _async }
 215 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _async) \
 216         { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .async = _async }
 217
 218 /*
 219  * Handlers for fw notifications
 220  * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
 221  * This list should be in order of frequency for performance purposes.
 222  *
 223  * The handler can be SYNC - this means that it will be called in the Rx path
 224  * which can't acquire mvm->mutex. If the handler needs to hold mvm->mutex (and
 225  * only in this case!), it should be set as ASYNC. In that case, it will be
 226  * called from a worker with mvm->mutex held.
 227  */
 228 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
 229         RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, false),
 230         RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, false),
 231
 232         RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true),
 233         RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, true),
 234         RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true),
 235         RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION,
 236                    iwl_mvm_rx_ant_coupling_notif, true),
 237
 238         RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false),
 239         RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, true),
 240
 241         RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false),
 242
 243         RX_HANDLER(SCAN_ITERATION_COMPLETE,
 244                    iwl_mvm_rx_lmac_scan_iter_complete_notif, false),
 245         RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
 246                    iwl_mvm_rx_lmac_scan_complete_notif, true),
 247         RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found,
 248                    false),
 249         RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
 250                    true),
 251         RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
 252                    iwl_mvm_rx_umac_scan_iter_complete_notif, false),
 253
 254         RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
 255
 256         RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
 257                    false),
 258
 259         RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false),
 260         RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
 261                    iwl_mvm_power_uapsd_misbehaving_ap_notif, false),
 262         RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, true),
 263         RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
 264                        iwl_mvm_temp_notif, true),
 265
 266         RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
 267                    true),
 268         RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, false),
 269         RX_HANDLER(TOF_NOTIFICATION, iwl_mvm_tof_resp_handler, true),
 270
 271 };
 272 #undef RX_HANDLER
 273 #undef RX_HANDLER_GRP
 274
 275 /* Please keep this array *SORTED* by hex value.
 276  * Access is done through binary search
 277  */
 278 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
 279         HCMD_NAME(MVM_ALIVE),
 280         HCMD_NAME(REPLY_ERROR),
 281         HCMD_NAME(ECHO_CMD),
 282         HCMD_NAME(INIT_COMPLETE_NOTIF),
 283         HCMD_NAME(PHY_CONTEXT_CMD),
 284         HCMD_NAME(DBG_CFG),
 285         HCMD_NAME(ANTENNA_COUPLING_NOTIFICATION),
 286         HCMD_NAME(SCAN_CFG_CMD),
 287         HCMD_NAME(SCAN_REQ_UMAC),
 288         HCMD_NAME(SCAN_ABORT_UMAC),
 289         HCMD_NAME(SCAN_COMPLETE_UMAC),
 290         HCMD_NAME(TOF_CMD),
 291         HCMD_NAME(TOF_NOTIFICATION),
 292         HCMD_NAME(ADD_STA_KEY),
 293         HCMD_NAME(ADD_STA),
 294         HCMD_NAME(REMOVE_STA),
 295         HCMD_NAME(FW_GET_ITEM_CMD),
 296         HCMD_NAME(TX_CMD),
 297         HCMD_NAME(SCD_QUEUE_CFG),
 298         HCMD_NAME(TXPATH_FLUSH),
 299         HCMD_NAME(MGMT_MCAST_KEY),
 300         HCMD_NAME(WEP_KEY),
 301         HCMD_NAME(SHARED_MEM_CFG),
 302         HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
 303         HCMD_NAME(MAC_CONTEXT_CMD),
 304         HCMD_NAME(TIME_EVENT_CMD),
 305         HCMD_NAME(TIME_EVENT_NOTIFICATION),
 306         HCMD_NAME(BINDING_CONTEXT_CMD),
 307         HCMD_NAME(TIME_QUOTA_CMD),
 308         HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
 309         HCMD_NAME(LQ_CMD),
 310         HCMD_NAME(FW_PAGING_BLOCK_CMD),
 311         HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
 312         HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
 313         HCMD_NAME(HOT_SPOT_CMD),
 314         HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
 315         HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_CONFIG_CMD),
 316         HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_QUERY_CMD),
 317         HCMD_NAME(BT_COEX_UPDATE_SW_BOOST),
 318         HCMD_NAME(BT_COEX_UPDATE_CORUN_LUT),
 319         HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
 320         HCMD_NAME(BT_COEX_CI),
 321         HCMD_NAME(PHY_CONFIGURATION_CMD),
 322         HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
 323         HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
 324         HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
 325         HCMD_NAME(SCAN_OFFLOAD_CONFIG_CMD),
 326         HCMD_NAME(POWER_TABLE_CMD),
 327         HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
 328         HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
 329         HCMD_NAME(DC2DC_CONFIG_CMD),
 330         HCMD_NAME(NVM_ACCESS_CMD),
 331         HCMD_NAME(SET_CALIB_DEFAULT_CMD),
 332         HCMD_NAME(BEACON_NOTIFICATION),
 333         HCMD_NAME(BEACON_TEMPLATE_CMD),
 334         HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
 335         HCMD_NAME(BT_CONFIG),
 336         HCMD_NAME(STATISTICS_CMD),
 337         HCMD_NAME(STATISTICS_NOTIFICATION),
 338         HCMD_NAME(EOSP_NOTIFICATION),
 339         HCMD_NAME(REDUCE_TX_POWER_CMD),
 340         HCMD_NAME(CARD_STATE_CMD),
 341         HCMD_NAME(CARD_STATE_NOTIFICATION),
 342         HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
 343         HCMD_NAME(TDLS_CONFIG_CMD),
 344         HCMD_NAME(MAC_PM_POWER_TABLE),
 345         HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
 346         HCMD_NAME(MFUART_LOAD_NOTIFICATION),
 347         HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
 348         HCMD_NAME(REPLY_RX_PHY_CMD),
 349         HCMD_NAME(REPLY_RX_MPDU_CMD),
 350         HCMD_NAME(BA_NOTIF),
 351         HCMD_NAME(MCC_UPDATE_CMD),
 352         HCMD_NAME(MCC_CHUB_UPDATE_CMD),
 353         HCMD_NAME(MARKER_CMD),
 354         HCMD_NAME(BT_COEX_PRIO_TABLE),
 355         HCMD_NAME(BT_COEX_PROT_ENV),
 356         HCMD_NAME(BT_PROFILE_NOTIFICATION),
 357         HCMD_NAME(BCAST_FILTER_CMD),
 358         HCMD_NAME(MCAST_FILTER_CMD),
 359         HCMD_NAME(REPLY_SF_CFG_CMD),
 360         HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
 361         HCMD_NAME(D3_CONFIG_CMD),
 362         HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
 363         HCMD_NAME(OFFLOADS_QUERY_CMD),
 364         HCMD_NAME(REMOTE_WAKE_CONFIG_CMD),
 365         HCMD_NAME(MATCH_FOUND_NOTIFICATION),
 366         HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER),
 367         HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
 368         HCMD_NAME(WOWLAN_PATTERNS),
 369         HCMD_NAME(WOWLAN_CONFIGURATION),
 370         HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
 371         HCMD_NAME(WOWLAN_TKIP_PARAM),
 372         HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
 373         HCMD_NAME(WOWLAN_GET_STATUSES),
 374         HCMD_NAME(WOWLAN_TX_POWER_PER_DB),
 375         HCMD_NAME(SCAN_ITERATION_COMPLETE),
 376         HCMD_NAME(D0I3_END_CMD),
 377         HCMD_NAME(LTR_CONFIG),
 378         HCMD_NAME(REPLY_DEBUG_CMD),
 379 };
 380
 381 /* Please keep this array *SORTED* by hex value.
 382  * Access is done through binary search
 383  */
 384 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
 385         HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
 386         HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
 387 };
 388
 389 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
 390         [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 391         [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 392         [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
 393 };
 394
 395
 396 /* this forward declaration can avoid to export the function */
 397 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
 398 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk);
 399
 400 static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg)
 401 {
 402         const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs;
 403
 404         if (!pwr_tx_backoff)
 405                 return 0;
 406
 407         while (pwr_tx_backoff->pwr) {
 408                 if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr)
 409                         return pwr_tx_backoff->backoff;
 410
 411                 pwr_tx_backoff++;
 412         }
 413
 414         return 0;
 415 }
 416
 417 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work);
 418
 419 static struct iwl_op_mode *
 420 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 421                       const struct iwl_fw *fw, struct dentry *dbgfs_dir)
 422 {
 423         struct ieee80211_hw *hw;
 424         struct iwl_op_mode *op_mode;
 425         struct iwl_mvm *mvm;
 426         struct iwl_trans_config trans_cfg = {};
 427         static const u8 no_reclaim_cmds[] = {
 428                 TX_CMD,
 429         };
 430         int err, scan_size;
 431         u32 min_backoff;
 432
 433         /*
 434          * We use IWL_MVM_STATION_COUNT to check the validity of the station
 435          * index all over the driver - check that its value corresponds to the
 436          * array size.
 437          */
 438         BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);
 439
 440         /********************************
 441          * 1. Allocating and configuring HW data
 442          ********************************/
 443         hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
 444                                 sizeof(struct iwl_mvm),
 445                                 &iwl_mvm_hw_ops);
 446         if (!hw)
 447                 return NULL;
 448
 449         if (cfg->max_rx_agg_size)
 450                 hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
 451
 452         if (cfg->max_tx_agg_size)
 453                 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
 454
 455         op_mode = hw->priv;
 456
 457         mvm = IWL_OP_MODE_GET_MVM(op_mode);
 458         mvm->dev = trans->dev;
 459         mvm->trans = trans;
 460         mvm->cfg = cfg;
 461         mvm->fw = fw;
 462         mvm->hw = hw;
 463
 464         if (iwl_mvm_has_new_rx_api(mvm)) {
 465                 op_mode->ops = &iwl_mvm_ops_mq;
 466         } else {
 467                 op_mode->ops = &iwl_mvm_ops;
 468
 469                 if (WARN_ON(trans->num_rx_queues > 1))
 470                         goto out_free;
 471         }
 472
 473         mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;
 474
 475         mvm->aux_queue = 15;
 476         mvm->first_agg_queue = 16;
 477         mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
 478         if (mvm->cfg->base_params->num_of_queues == 16) {
 479                 mvm->aux_queue = 11;
 480                 mvm->first_agg_queue = 12;
 481         }
 482         mvm->sf_state = SF_UNINIT;
 483         mvm->cur_ucode = IWL_UCODE_INIT;
 484
 485         mutex_init(&mvm->mutex);
 486         mutex_init(&mvm->d0i3_suspend_mutex);
 487         spin_lock_init(&mvm->async_handlers_lock);
 488         INIT_LIST_HEAD(&mvm->time_event_list);
 489         INIT_LIST_HEAD(&mvm->aux_roc_te_list);
 490         INIT_LIST_HEAD(&mvm->async_handlers_list);
 491         spin_lock_init(&mvm->time_event_lock);
 492         spin_lock_init(&mvm->queue_info_lock);
 493
 494         INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
 495         INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
 496         INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
 497         INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
 498         INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk);
 499         INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
 500
 501         spin_lock_init(&mvm->d0i3_tx_lock);
 502         spin_lock_init(&mvm->refs_lock);
 503         skb_queue_head_init(&mvm->d0i3_tx);
 504         init_waitqueue_head(&mvm->d0i3_exit_waitq);
 505
 506         SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
 507
 508         /*
 509          * Populate the state variables that the transport layer needs
 510          * to know about.
 511          */
 512         trans_cfg.op_mode = op_mode;
 513         trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
 514         trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
 515         switch (iwlwifi_mod_params.amsdu_size) {
 516         case IWL_AMSDU_4K:
 517                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
 518                 break;
 519         case IWL_AMSDU_8K:
 520                 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
 521                 break;
 522         case IWL_AMSDU_12K:
 523                 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
 524                 break;
 525         default:
 526                 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
 527                        iwlwifi_mod_params.amsdu_size);
 528                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
 529         }
 530         trans_cfg.wide_cmd_header = fw_has_api(&mvm->fw->ucode_capa,
 531                                                IWL_UCODE_TLV_API_WIDE_CMD_HDR);
 532
 533         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
 534                 trans_cfg.bc_table_dword = true;
 535
 536         trans_cfg.command_groups = iwl_mvm_groups;
 537         trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
 538
 539         trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
 540         trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
 541         trans_cfg.scd_set_active = true;
 542
 543         trans_cfg.sdio_adma_addr = fw->sdio_adma_addr;
 544         trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD;
 545
 546         /* Set a short watchdog for the command queue */
 547         trans_cfg.cmd_q_wdg_timeout =
 548                 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
 549
 550         snprintf(mvm->hw->wiphy->fw_version,
 551                  sizeof(mvm->hw->wiphy->fw_version),
 552                  "%s", fw->fw_version);
 553
 554         /* Configure transport layer */
 555         iwl_trans_configure(mvm->trans, &trans_cfg);
 556
 557         trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
 558         trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);
 559         trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv;
 560         trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num;
 561         memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv,
 562                sizeof(trans->dbg_conf_tlv));
 563         trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv;
 564
 565         /* set up notification wait support */
 566         iwl_notification_wait_init(&mvm->notif_wait);
 567
 568         /* Init phy db */
 569         mvm->phy_db = iwl_phy_db_init(trans);
 570         if (!mvm->phy_db) {
 571                 IWL_ERR(mvm, "Cannot init phy_db\n");
 572                 goto out_free;
 573         }
 574
 575         IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
 576                  mvm->cfg->name, mvm->trans->hw_rev);
 577
 578         min_backoff = calc_min_backoff(trans, cfg);
 579         iwl_mvm_tt_initialize(mvm, min_backoff);
 580
 581         if (iwlwifi_mod_params.nvm_file)
 582                 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
 583         else
 584                 IWL_DEBUG_EEPROM(mvm->trans->dev,
 585                                  "working without external nvm file\n");
 586
 587         if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name,
 588                  "not allowing power-up and not having nvm_file\n"))
 589                 goto out_free;
 590
 591         /*
 592          * Even if nvm exists in the nvm_file driver should read again the nvm
 593          * from the nic because there might be entries that exist in the OTP
 594          * and not in the file.
 595          * for nics with no_power_up_nic_in_init: rely completley on nvm_file
 596          */
 597         if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) {
 598                 err = iwl_nvm_init(mvm, false);
 599                 if (err)
 600                         goto out_free;
 601         } else {
 602                 err = iwl_trans_start_hw(mvm->trans);
 603                 if (err)
 604                         goto out_free;
 605
 606                 mutex_lock(&mvm->mutex);
 607                 iwl_mvm_ref(mvm, IWL_MVM_REF_INIT_UCODE);
 608                 err = iwl_run_init_mvm_ucode(mvm, true);
 609                 if (!err || !iwlmvm_mod_params.init_dbg)
 610                         iwl_trans_stop_device(trans);
 611                 iwl_mvm_unref(mvm, IWL_MVM_REF_INIT_UCODE);
 612                 mutex_unlock(&mvm->mutex);
 613                 /* returns 0 if successful, 1 if success but in rfkill */
 614                 if (err < 0 && !iwlmvm_mod_params.init_dbg) {
 615                         IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
 616                         goto out_free;
 617                 }
 618         }
 619
 620         scan_size = iwl_mvm_scan_size(mvm);
 621
 622         mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
 623         if (!mvm->scan_cmd)
 624                 goto out_free;
 625
 626         /* Set EBS as successful as long as not stated otherwise by the FW. */
 627         mvm->last_ebs_successful = true;
 628
 629         err = iwl_mvm_mac_setup_register(mvm);
 630         if (err)
 631                 goto out_free;
 632
 633         err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
 634         if (err)
 635                 goto out_unregister;
 636
 637         memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
 638
 639         /* rpm starts with a taken reference, we can release it now */
 640         iwl_trans_unref(mvm->trans);
 641
 642         iwl_mvm_tof_init(mvm);
 643
 644         return op_mode;
 645
 646  out_unregister:
 647         ieee80211_unregister_hw(mvm->hw);
 648         iwl_mvm_leds_exit(mvm);
 649  out_free:
 650         flush_delayed_work(&mvm->fw_dump_wk);
 651         iwl_phy_db_free(mvm->phy_db);
 652         kfree(mvm->scan_cmd);
 653         if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name)
 654                 iwl_trans_op_mode_leave(trans);
 655         ieee80211_free_hw(mvm->hw);
 656         return NULL;
 657 }
 658
 659 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
 660 {
 661         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 662         int i;
 663
 664         iwl_mvm_leds_exit(mvm);
 665
 666         iwl_mvm_tt_exit(mvm);
 667
 668         ieee80211_unregister_hw(mvm->hw);
 669
 670         kfree(mvm->scan_cmd);
 671         kfree(mvm->mcast_filter_cmd);
 672         mvm->mcast_filter_cmd = NULL;
 673
 674 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
 675         kfree(mvm->d3_resume_sram);
 676 #endif
 677
 678         iwl_trans_op_mode_leave(mvm->trans);
 679
 680         iwl_phy_db_free(mvm->phy_db);
 681         mvm->phy_db = NULL;
 682
 683         iwl_free_nvm_data(mvm->nvm_data);
 684         for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
 685                 kfree(mvm->nvm_sections[i].data);
 686
 687         iwl_mvm_tof_clean(mvm);
 688
 689         ieee80211_free_hw(mvm->hw);
 690 }
 691
 692 struct iwl_async_handler_entry {
 693         struct list_head list;
 694         struct iwl_rx_cmd_buffer rxb;
 695         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
 696 };
 697
 698 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
 699 {
 700         struct iwl_async_handler_entry *entry, *tmp;
 701
 702         spin_lock_bh(&mvm->async_handlers_lock);
 703         list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
 704                 iwl_free_rxb(&entry->rxb);
 705                 list_del(&entry->list);
 706                 kfree(entry);
 707         }
 708         spin_unlock_bh(&mvm->async_handlers_lock);
 709 }
 710
 711 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
 712 {
 713         struct iwl_mvm *mvm =
 714                 container_of(wk, struct iwl_mvm, async_handlers_wk);
 715         struct iwl_async_handler_entry *entry, *tmp;
 716         struct list_head local_list;
 717
 718         INIT_LIST_HEAD(&local_list);
 719
 720         /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
 721         mutex_lock(&mvm->mutex);
 722
 723         /*
 724          * Sync with Rx path with a lock. Remove all the entries from this list,
 725          * add them to a local one (lock free), and then handle them.
 726          */
 727         spin_lock_bh(&mvm->async_handlers_lock);
 728         list_splice_init(&mvm->async_handlers_list, &local_list);
 729         spin_unlock_bh(&mvm->async_handlers_lock);
 730
 731         list_for_each_entry_safe(entry, tmp, &local_list, list) {
 732                 entry->fn(mvm, &entry->rxb);
 733                 iwl_free_rxb(&entry->rxb);
 734                 list_del(&entry->list);
 735                 kfree(entry);
 736         }
 737         mutex_unlock(&mvm->mutex);
 738 }
 739
 740 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
 741                                             struct iwl_rx_packet *pkt)
 742 {
 743         struct iwl_fw_dbg_trigger_tlv *trig;
 744         struct iwl_fw_dbg_trigger_cmd *cmds_trig;
 745         int i;
 746
 747         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF))
 748                 return;
 749
 750         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF);
 751         cmds_trig = (void *)trig->data;
 752
 753         if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig))
 754                 return;
 755
 756         for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
 757                 /* don't collect on CMD 0 */
 758                 if (!cmds_trig->cmds[i].cmd_id)
 759                         break;
 760
 761                 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
 762                     cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
 763                         continue;
 764
 765                 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
 766                                             "CMD 0x%02x.%02x received",
 767                                             pkt->hdr.group_id, pkt->hdr.cmd);
 768                 break;
 769         }
 770 }
 771
 772 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
 773                               struct iwl_rx_cmd_buffer *rxb,
 774                               struct iwl_rx_packet *pkt)
 775 {
 776         int i;
 777
 778         iwl_mvm_rx_check_trigger(mvm, pkt);
 779
 780         /*
 781          * Do the notification wait before RX handlers so
 782          * even if the RX handler consumes the RXB we have
 783          * access to it in the notification wait entry.
 784          */
 785         iwl_notification_wait_notify(&mvm->notif_wait, pkt);
 786
 787         for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
 788                 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
 789                 struct iwl_async_handler_entry *entry;
 790
 791                 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
 792                         continue;
 793
 794                 if (!rx_h->async) {
 795                         rx_h->fn(mvm, rxb);
 796                         return;
 797                 }
 798
 799                 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
 800                 /* we can't do much... */
 801                 if (!entry)
 802                         return;
 803
 804                 entry->rxb._page = rxb_steal_page(rxb);
 805                 entry->rxb._offset = rxb->_offset;
 806                 entry->rxb._rx_page_order = rxb->_rx_page_order;
 807                 entry->fn = rx_h->fn;
 808                 spin_lock(&mvm->async_handlers_lock);
 809                 list_add_tail(&entry->list, &mvm->async_handlers_list);
 810                 spin_unlock(&mvm->async_handlers_lock);
 811                 schedule_work(&mvm->async_handlers_wk);
 812                 break;
 813         }
 814 }
 815
 816 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
 817                        struct napi_struct *napi,
 818                        struct iwl_rx_cmd_buffer *rxb)
 819 {
 820         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 821         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 822
 823         if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD))
 824                 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
 825         else if (pkt->hdr.cmd == FRAME_RELEASE)
 826                 iwl_mvm_rx_frame_release(mvm, rxb, 0);
 827         else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD)
 828                 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
 829         else
 830                 iwl_mvm_rx_common(mvm, rxb, pkt);
 831 }
 832
 833 static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
 834                           struct napi_struct *napi,
 835                           struct iwl_rx_cmd_buffer *rxb)
 836 {
 837         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 838         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 839
 840         if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD))
 841                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
 842         else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD)
 843                 iwl_mvm_rx_phy_cmd_mq(mvm, rxb);
 844         else
 845                 iwl_mvm_rx_common(mvm, rxb, pkt);
 846 }
 847
 848 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
 849 {
 850         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 851         unsigned long mq;
 852         int q;
 853
 854         spin_lock_bh(&mvm->queue_info_lock);
 855         mq = mvm->queue_info[queue].hw_queue_to_mac80211;
 856         spin_unlock_bh(&mvm->queue_info_lock);
 857
 858         if (WARN_ON_ONCE(!mq))
 859                 return;
 860
 861         for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
 862                 if (atomic_inc_return(&mvm->mac80211_queue_stop_count[q]) > 1) {
 863                         IWL_DEBUG_TX_QUEUES(mvm,
 864                                             "queue %d (mac80211 %d) already stopped\n",
 865                                             queue, q);
 866                         continue;
 867                 }
 868
 869                 ieee80211_stop_queue(mvm->hw, q);
 870         }
 871 }
 872
 873 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
 874                              const struct iwl_device_cmd *cmd)
 875 {
 876         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 877
 878         /*
 879          * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
 880          * commands that need to block the Tx queues.
 881          */
 882         iwl_trans_block_txq_ptrs(mvm->trans, false);
 883 }
 884
 885 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
 886 {
 887         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 888         unsigned long mq;
 889         int q;
 890
 891         spin_lock_bh(&mvm->queue_info_lock);
 892         mq = mvm->queue_info[queue].hw_queue_to_mac80211;
 893         spin_unlock_bh(&mvm->queue_info_lock);
 894
 895         if (WARN_ON_ONCE(!mq))
 896                 return;
 897
 898         for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
 899                 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[q]) > 0) {
 900                         IWL_DEBUG_TX_QUEUES(mvm,
 901                                             "queue %d (mac80211 %d) still stopped\n",
 902                                             queue, q);
 903                         continue;
 904                 }
 905
 906                 ieee80211_wake_queue(mvm->hw, q);
 907         }
 908 }
 909
 910 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
 911 {
 912         if (state)
 913                 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
 914         else
 915                 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
 916
 917         wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
 918 }
 919
 920 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
 921 {
 922         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 923         bool calibrating = ACCESS_ONCE(mvm->calibrating);
 924
 925         if (state)
 926                 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
 927         else
 928                 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
 929
 930         wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
 931
 932         /* iwl_run_init_mvm_ucode is waiting for results, abort it */
 933         if (calibrating)
 934                 iwl_abort_notification_waits(&mvm->notif_wait);
 935
 936         /*
 937          * Stop the device if we run OPERATIONAL firmware or if we are in the
 938          * middle of the calibrations.
 939          */
 940         return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating);
 941 }
 942
 943 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
 944 {
 945         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 946         struct ieee80211_tx_info *info;
 947
 948         info = IEEE80211_SKB_CB(skb);
 949         iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
 950         ieee80211_free_txskb(mvm->hw, skb);
 951 }
 952
 953 struct iwl_mvm_reprobe {
 954         struct device *dev;
 955         struct work_struct work;
 956 };
 957
 958 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
 959 {
 960         struct iwl_mvm_reprobe *reprobe;
 961
 962         reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
 963         if (device_reprobe(reprobe->dev))
 964                 dev_err(reprobe->dev, "reprobe failed!\n");
 965         kfree(reprobe);
 966         module_put(THIS_MODULE);
 967 }
 968
 969 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
 970 {
 971         struct iwl_mvm *mvm =
 972                 container_of(work, struct iwl_mvm, fw_dump_wk.work);
 973
 974         if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT))
 975                 return;
 976
 977         mutex_lock(&mvm->mutex);
 978
 979         /* stop recording */
 980         if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
 981                 iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100);
 982         } else {
 983                 iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0);
 984                 /* wait before we collect the data till the DBGC stop */
 985                 udelay(100);
 986         }
 987
 988         iwl_mvm_fw_error_dump(mvm);
 989
 990         /* start recording again if the firmware is not crashed */
 991         WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) &&
 992                      mvm->fw->dbg_dest_tlv &&
 993                      iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf));
 994
 995         mutex_unlock(&mvm->mutex);
 996
 997         iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
 998 }
 999
1000 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1001 {
1002         iwl_abort_notification_waits(&mvm->notif_wait);
1003
1004         /*
1005          * This is a bit racy, but worst case we tell mac80211 about
1006          * a stopped/aborted scan when that was already done which
1007          * is not a problem. It is necessary to abort any os scan
1008          * here because mac80211 requires having the scan cleared
1009          * before restarting.
1010          * We'll reset the scan_status to NONE in restart cleanup in
1011          * the next start() call from mac80211. If restart isn't called
1012          * (no fw restart) scan status will stay busy.
1013          */
1014         iwl_mvm_report_scan_aborted(mvm);
1015
1016         /*
1017          * If we're restarting already, don't cycle restarts.
1018          * If INIT fw asserted, it will likely fail again.
1019          * If WoWLAN fw asserted, don't restart either, mac80211
1020          * can't recover this since we're already half suspended.
1021          */
1022         if (!mvm->restart_fw && fw_error) {
1023                 iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert,
1024                                             NULL);
1025         } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1026                                     &mvm->status)) {
1027                 struct iwl_mvm_reprobe *reprobe;
1028
1029                 IWL_ERR(mvm,
1030                         "Firmware error during reconfiguration - reprobe!\n");
1031
1032                 /*
1033                  * get a module reference to avoid doing this while unloading
1034                  * anyway and to avoid scheduling a work with code that's
1035                  * being removed.
1036                  */
1037                 if (!try_module_get(THIS_MODULE)) {
1038                         IWL_ERR(mvm, "Module is being unloaded - abort\n");
1039                         return;
1040                 }
1041
1042                 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1043                 if (!reprobe) {
1044                         module_put(THIS_MODULE);
1045                         return;
1046                 }
1047                 reprobe->dev = mvm->trans->dev;
1048                 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1049                 schedule_work(&reprobe->work);
1050         } else if (mvm->cur_ucode == IWL_UCODE_REGULAR) {
1051                 /* don't let the transport/FW power down */
1052                 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1053
1054                 if (fw_error && mvm->restart_fw > 0)
1055                         mvm->restart_fw--;
1056                 ieee80211_restart_hw(mvm->hw);
1057         }
1058 }
1059
1060 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
1061 {
1062         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1063
1064         iwl_mvm_dump_nic_error_log(mvm);
1065
1066         iwl_mvm_nic_restart(mvm, true);
1067 }
1068
1069 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1070 {
1071         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1072
1073         WARN_ON(1);
1074         iwl_mvm_nic_restart(mvm, true);
1075 }
1076
1077 struct iwl_d0i3_iter_data {
1078         struct iwl_mvm *mvm;
1079         struct ieee80211_vif *connected_vif;
1080         u8 ap_sta_id;
1081         u8 vif_count;
1082         u8 offloading_tid;
1083         bool disable_offloading;
1084 };
1085
1086 static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
1087                                         struct ieee80211_vif *vif,
1088                                         struct iwl_d0i3_iter_data *iter_data)
1089 {
1090         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1091         struct ieee80211_sta *ap_sta;
1092         struct iwl_mvm_sta *mvmsta;
1093         u32 available_tids = 0;
1094         u8 tid;
1095
1096         if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
1097                     mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
1098                 return false;
1099
1100         ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]);
1101         if (IS_ERR_OR_NULL(ap_sta))
1102                 return false;
1103
1104         mvmsta = iwl_mvm_sta_from_mac80211(ap_sta);
1105         spin_lock_bh(&mvmsta->lock);
1106         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1107                 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
1108
1109                 /*
1110                  * in case of pending tx packets, don't use this tid
1111                  * for offloading in order to prevent reuse of the same
1112                  * qos seq counters.
1113                  */
1114                 if (iwl_mvm_tid_queued(tid_data))
1115                         continue;
1116
1117                 if (tid_data->state != IWL_AGG_OFF)
1118                         continue;
1119
1120                 available_tids |= BIT(tid);
1121         }
1122         spin_unlock_bh(&mvmsta->lock);
1123
1124         /*
1125          * disallow protocol offloading if we have no available tid
1126          * (with no pending frames and no active aggregation,
1127          * as we don't handle "holes" properly - the scheduler needs the
1128          * frame's seq number and TFD index to match)
1129          */
1130         if (!available_tids)
1131                 return true;
1132
1133         /* for simplicity, just use the first available tid */
1134         iter_data->offloading_tid = ffs(available_tids) - 1;
1135         return false;
1136 }
1137
1138 static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
1139                                         struct ieee80211_vif *vif)
1140 {
1141         struct iwl_d0i3_iter_data *data = _data;
1142         struct iwl_mvm *mvm = data->mvm;
1143         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1144         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1145
1146         IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
1147         if (vif->type != NL80211_IFTYPE_STATION ||
1148             !vif->bss_conf.assoc)
1149                 return;
1150
1151         /*
1152          * in case of pending tx packets or active aggregations,
1153          * avoid offloading features in order to prevent reuse of
1154          * the same qos seq counters.
1155          */
1156         if (iwl_mvm_disallow_offloading(mvm, vif, data))
1157                 data->disable_offloading = true;
1158
1159         iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
1160         iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading,
1161                                    false, flags);
1162
1163         /*
1164          * on init/association, mvm already configures POWER_TABLE_CMD
1165          * and REPLY_MCAST_FILTER_CMD, so currently don't
1166          * reconfigure them (we might want to use different
1167          * params later on, though).
1168          */
1169         data->ap_sta_id = mvmvif->ap_sta_id;
1170         data->vif_count++;
1171
1172         /*
1173          * no new commands can be sent at this stage, so it's safe
1174          * to save the vif pointer during d0i3 entrance.
1175          */
1176         data->connected_vif = vif;
1177 }
1178
1179 static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
1180                                     struct iwl_wowlan_config_cmd *cmd,
1181                                     struct iwl_d0i3_iter_data *iter_data)
1182 {
1183         struct ieee80211_sta *ap_sta;
1184         struct iwl_mvm_sta *mvm_ap_sta;
1185
1186         if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
1187                 return;
1188
1189         rcu_read_lock();
1190
1191         ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
1192         if (IS_ERR_OR_NULL(ap_sta))
1193                 goto out;
1194
1195         mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
1196         cmd->is_11n_connection = ap_sta->ht_cap.ht_supported;
1197         cmd->offloading_tid = iter_data->offloading_tid;
1198         cmd->flags = ENABLE_L3_FILTERING | ENABLE_NBNS_FILTERING |
1199                 ENABLE_DHCP_FILTERING;
1200         /*
1201          * The d0i3 uCode takes care of the nonqos counters,
1202          * so configure only the qos seq ones.
1203          */
1204         iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd);
1205 out:
1206         rcu_read_unlock();
1207 }
1208
1209 int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
1210 {
1211         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1212         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1213         int ret;
1214         struct iwl_d0i3_iter_data d0i3_iter_data = {
1215                 .mvm = mvm,
1216         };
1217         struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1218                 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
1219                                              IWL_WOWLAN_WAKEUP_BEACON_MISS |
1220                                              IWL_WOWLAN_WAKEUP_LINK_CHANGE |
1221                                              IWL_WOWLAN_WAKEUP_BCN_FILTERING),
1222         };
1223         struct iwl_d3_manager_config d3_cfg_cmd = {
1224                 .min_sleep_time = cpu_to_le32(1000),
1225                 .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR),
1226         };
1227
1228         IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
1229
1230         if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1231                 return -EINVAL;
1232
1233         set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1234
1235         /*
1236          * iwl_mvm_ref_sync takes a reference before checking the flag.
1237          * so by checking there is no held reference we prevent a state
1238          * in which iwl_mvm_ref_sync continues successfully while we
1239          * configure the firmware to enter d0i3
1240          */
1241         if (iwl_mvm_ref_taken(mvm)) {
1242                 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n");
1243                 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1244                 wake_up(&mvm->d0i3_exit_waitq);
1245                 return 1;
1246         }
1247
1248         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1249                                                    IEEE80211_IFACE_ITER_NORMAL,
1250                                                    iwl_mvm_enter_d0i3_iterator,
1251                                                    &d0i3_iter_data);
1252         if (d0i3_iter_data.vif_count == 1) {
1253                 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
1254                 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
1255         } else {
1256                 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
1257                 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1258                 mvm->d0i3_offloading = false;
1259         }
1260
1261         /* make sure we have no running tx while configuring the seqno */
1262         synchronize_net();
1263
1264         /* Flush the hw queues, in case something got queued during entry */
1265         ret = iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm), flags);
1266         if (ret)
1267                 return ret;
1268
1269         /* configure wowlan configuration only if needed */
1270         if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) {
1271                 iwl_mvm_wowlan_config_key_params(mvm,
1272                                                  d0i3_iter_data.connected_vif,
1273                                                  true, flags);
1274
1275                 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd,
1276                                         &d0i3_iter_data);
1277
1278                 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
1279                                            sizeof(wowlan_config_cmd),
1280                                            &wowlan_config_cmd);
1281                 if (ret)
1282                         return ret;
1283         }
1284
1285         return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
1286                                     flags | CMD_MAKE_TRANS_IDLE,
1287                                     sizeof(d3_cfg_cmd), &d3_cfg_cmd);
1288 }
1289
1290 static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
1291                                        struct ieee80211_vif *vif)
1292 {
1293         struct iwl_mvm *mvm = _data;
1294         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
1295
1296         IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
1297         if (vif->type != NL80211_IFTYPE_STATION ||
1298             !vif->bss_conf.assoc)
1299                 return;
1300
1301         iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
1302 }
1303
1304 struct iwl_mvm_d0i3_exit_work_iter_data {
1305         struct iwl_mvm *mvm;
1306         struct iwl_wowlan_status *status;
1307         u32 wakeup_reasons;
1308 };
1309
1310 static void iwl_mvm_d0i3_exit_work_iter(void *_data, u8 *mac,
1311                                         struct ieee80211_vif *vif)
1312 {
1313         struct iwl_mvm_d0i3_exit_work_iter_data *data = _data;
1314         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1315         u32 reasons = data->wakeup_reasons;
1316
1317         /* consider only the relevant station interface */
1318         if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1319             data->mvm->d0i3_ap_sta_id != mvmvif->ap_sta_id)
1320                 return;
1321
1322         if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)
1323                 iwl_mvm_connection_loss(data->mvm, vif, "D0i3");
1324         else if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON)
1325                 ieee80211_beacon_loss(vif);
1326         else
1327                 iwl_mvm_d0i3_update_keys(data->mvm, vif, data->status);
1328 }
1329
1330 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
1331 {
1332         struct ieee80211_sta *sta = NULL;
1333         struct iwl_mvm_sta *mvm_ap_sta;
1334         int i;
1335         bool wake_queues = false;
1336
1337         lockdep_assert_held(&mvm->mutex);
1338
1339         spin_lock_bh(&mvm->d0i3_tx_lock);
1340
1341         if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
1342                 goto out;
1343
1344         IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
1345
1346         /* get the sta in order to update seq numbers and re-enqueue skbs */
1347         sta = rcu_dereference_protected(
1348                         mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
1349                         lockdep_is_held(&mvm->mutex));
1350
1351         if (IS_ERR_OR_NULL(sta)) {
1352                 sta = NULL;
1353                 goto out;
1354         }
1355
1356         if (mvm->d0i3_offloading && qos_seq) {
1357                 /* update qos seq numbers if offloading was enabled */
1358                 mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta);
1359                 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1360                         u16 seq = le16_to_cpu(qos_seq[i]);
1361                         /* firmware stores last-used one, we store next one */
1362                         seq += 0x10;
1363                         mvm_ap_sta->tid_data[i].seq_number = seq;
1364                 }
1365         }
1366 out:
1367         /* re-enqueue (or drop) all packets */
1368         while (!skb_queue_empty(&mvm->d0i3_tx)) {
1369                 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
1370
1371                 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
1372                         ieee80211_free_txskb(mvm->hw, skb);
1373
1374                 /* if the skb_queue is not empty, we need to wake queues */
1375                 wake_queues = true;
1376         }
1377         clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1378         wake_up(&mvm->d0i3_exit_waitq);
1379         mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1380         if (wake_queues)
1381                 ieee80211_wake_queues(mvm->hw);
1382
1383         spin_unlock_bh(&mvm->d0i3_tx_lock);
1384 }
1385
1386 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
1387 {
1388         struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
1389         struct iwl_host_cmd get_status_cmd = {
1390                 .id = WOWLAN_GET_STATUSES,
1391                 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
1392         };
1393         struct iwl_mvm_d0i3_exit_work_iter_data iter_data = {
1394                 .mvm = mvm,
1395         };
1396
1397         struct iwl_wowlan_status *status;
1398         int ret;
1399         u32 wakeup_reasons = 0;
1400         __le16 *qos_seq = NULL;
1401
1402         mutex_lock(&mvm->mutex);
1403         ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
1404         if (ret)
1405                 goto out;
1406
1407         if (!get_status_cmd.resp_pkt)
1408                 goto out;
1409
1410         status = (void *)get_status_cmd.resp_pkt->data;
1411         wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
1412         qos_seq = status->qos_seq_ctr;
1413
1414         IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
1415
1416         iter_data.wakeup_reasons = wakeup_reasons;
1417         iter_data.status = status;
1418         ieee80211_iterate_active_interfaces(mvm->hw,
1419                                             IEEE80211_IFACE_ITER_NORMAL,
1420                                             iwl_mvm_d0i3_exit_work_iter,
1421                                             &iter_data);
1422 out:
1423         iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
1424
1425         IWL_DEBUG_INFO(mvm, "d0i3 exit completed (wakeup reasons: 0x%x)\n",
1426                        wakeup_reasons);
1427
1428         /* qos_seq might point inside resp_pkt, so free it only now */
1429         if (get_status_cmd.resp_pkt)
1430                 iwl_free_resp(&get_status_cmd);
1431
1432         /* the FW might have updated the regdomain */
1433         iwl_mvm_update_changed_regdom(mvm);
1434
1435         iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
1436         mutex_unlock(&mvm->mutex);
1437 }
1438
1439 int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
1440 {
1441         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
1442                     CMD_WAKE_UP_TRANS;
1443         int ret;
1444
1445         IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
1446
1447         if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1448                 return -EINVAL;
1449
1450         mutex_lock(&mvm->d0i3_suspend_mutex);
1451         if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
1452                 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
1453                 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
1454                 mutex_unlock(&mvm->d0i3_suspend_mutex);
1455                 return 0;
1456         }
1457         mutex_unlock(&mvm->d0i3_suspend_mutex);
1458
1459         ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
1460         if (ret)
1461                 goto out;
1462
1463         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1464                                                    IEEE80211_IFACE_ITER_NORMAL,
1465                                                    iwl_mvm_exit_d0i3_iterator,
1466                                                    mvm);
1467 out:
1468         schedule_work(&mvm->d0i3_exit_work);
1469         return ret;
1470 }
1471
1472 int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
1473 {
1474         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1475
1476         iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
1477         return _iwl_mvm_exit_d0i3(mvm);
1478 }
1479
1480 #define IWL_MVM_COMMON_OPS                                      \
1481         /* these could be differentiated */                     \
1482         .async_cb = iwl_mvm_async_cb,                           \
1483         .queue_full = iwl_mvm_stop_sw_queue,                    \
1484         .queue_not_full = iwl_mvm_wake_sw_queue,                \
1485         .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,              \
1486         .free_skb = iwl_mvm_free_skb,                           \
1487         .nic_error = iwl_mvm_nic_error,                         \
1488         .cmd_queue_full = iwl_mvm_cmd_queue_full,               \
1489         .nic_config = iwl_mvm_nic_config,                       \
1490         .enter_d0i3 = iwl_mvm_enter_d0i3,                       \
1491         .exit_d0i3 = iwl_mvm_exit_d0i3,                         \
1492         /* as we only register one, these MUST be common! */    \
1493         .start = iwl_op_mode_mvm_start,                         \
1494         .stop = iwl_op_mode_mvm_stop
1495
1496 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1497         IWL_MVM_COMMON_OPS,
1498         .rx = iwl_mvm_rx,
1499 };
1500
1501 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1502                               struct napi_struct *napi,
1503                               struct iwl_rx_cmd_buffer *rxb,
1504                               unsigned int queue)
1505 {
1506         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1507         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1508
1509         if (unlikely(pkt->hdr.cmd == FRAME_RELEASE))
1510                 iwl_mvm_rx_frame_release(mvm, rxb, queue);
1511         else
1512                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1513 }
1514
1515 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1516         IWL_MVM_COMMON_OPS,
1517         .rx = iwl_mvm_rx_mq,
1518         .rx_rss = iwl_mvm_rx_mq_rss,
1519 };