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_free_fw_paging(mvm);
 688
 689         iwl_mvm_tof_clean(mvm);
 690
 691         ieee80211_free_hw(mvm->hw);
 692 }
 693
 694 struct iwl_async_handler_entry {
 695         struct list_head list;
 696         struct iwl_rx_cmd_buffer rxb;
 697         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
 698 };
 699
 700 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
 701 {
 702         struct iwl_async_handler_entry *entry, *tmp;
 703
 704         spin_lock_bh(&mvm->async_handlers_lock);
 705         list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
 706                 iwl_free_rxb(&entry->rxb);
 707                 list_del(&entry->list);
 708                 kfree(entry);
 709         }
 710         spin_unlock_bh(&mvm->async_handlers_lock);
 711 }
 712
 713 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
 714 {
 715         struct iwl_mvm *mvm =
 716                 container_of(wk, struct iwl_mvm, async_handlers_wk);
 717         struct iwl_async_handler_entry *entry, *tmp;
 718         struct list_head local_list;
 719
 720         INIT_LIST_HEAD(&local_list);
 721
 722         /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
 723         mutex_lock(&mvm->mutex);
 724
 725         /*
 726          * Sync with Rx path with a lock. Remove all the entries from this list,
 727          * add them to a local one (lock free), and then handle them.
 728          */
 729         spin_lock_bh(&mvm->async_handlers_lock);
 730         list_splice_init(&mvm->async_handlers_list, &local_list);
 731         spin_unlock_bh(&mvm->async_handlers_lock);
 732
 733         list_for_each_entry_safe(entry, tmp, &local_list, list) {
 734                 entry->fn(mvm, &entry->rxb);
 735                 iwl_free_rxb(&entry->rxb);
 736                 list_del(&entry->list);
 737                 kfree(entry);
 738         }
 739         mutex_unlock(&mvm->mutex);
 740 }
 741
 742 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
 743                                             struct iwl_rx_packet *pkt)
 744 {
 745         struct iwl_fw_dbg_trigger_tlv *trig;
 746         struct iwl_fw_dbg_trigger_cmd *cmds_trig;
 747         int i;
 748
 749         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF))
 750                 return;
 751
 752         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF);
 753         cmds_trig = (void *)trig->data;
 754
 755         if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig))
 756                 return;
 757
 758         for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
 759                 /* don't collect on CMD 0 */
 760                 if (!cmds_trig->cmds[i].cmd_id)
 761                         break;
 762
 763                 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
 764                     cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
 765                         continue;
 766
 767                 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
 768                                             "CMD 0x%02x.%02x received",
 769                                             pkt->hdr.group_id, pkt->hdr.cmd);
 770                 break;
 771         }
 772 }
 773
 774 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
 775                               struct iwl_rx_cmd_buffer *rxb,
 776                               struct iwl_rx_packet *pkt)
 777 {
 778         int i;
 779
 780         iwl_mvm_rx_check_trigger(mvm, pkt);
 781
 782         /*
 783          * Do the notification wait before RX handlers so
 784          * even if the RX handler consumes the RXB we have
 785          * access to it in the notification wait entry.
 786          */
 787         iwl_notification_wait_notify(&mvm->notif_wait, pkt);
 788
 789         for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
 790                 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
 791                 struct iwl_async_handler_entry *entry;
 792
 793                 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
 794                         continue;
 795
 796                 if (!rx_h->async) {
 797                         rx_h->fn(mvm, rxb);
 798                         return;
 799                 }
 800
 801                 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
 802                 /* we can't do much... */
 803                 if (!entry)
 804                         return;
 805
 806                 entry->rxb._page = rxb_steal_page(rxb);
 807                 entry->rxb._offset = rxb->_offset;
 808                 entry->rxb._rx_page_order = rxb->_rx_page_order;
 809                 entry->fn = rx_h->fn;
 810                 spin_lock(&mvm->async_handlers_lock);
 811                 list_add_tail(&entry->list, &mvm->async_handlers_list);
 812                 spin_unlock(&mvm->async_handlers_lock);
 813                 schedule_work(&mvm->async_handlers_wk);
 814                 break;
 815         }
 816 }
 817
 818 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
 819                        struct napi_struct *napi,
 820                        struct iwl_rx_cmd_buffer *rxb)
 821 {
 822         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 823         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 824
 825         if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD))
 826                 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
 827         else if (pkt->hdr.cmd == FRAME_RELEASE)
 828                 iwl_mvm_rx_frame_release(mvm, rxb, 0);
 829         else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD)
 830                 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
 831         else
 832                 iwl_mvm_rx_common(mvm, rxb, pkt);
 833 }
 834
 835 static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
 836                           struct napi_struct *napi,
 837                           struct iwl_rx_cmd_buffer *rxb)
 838 {
 839         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 840         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 841
 842         if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD))
 843                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
 844         else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD)
 845                 iwl_mvm_rx_phy_cmd_mq(mvm, rxb);
 846         else
 847                 iwl_mvm_rx_common(mvm, rxb, pkt);
 848 }
 849
 850 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
 851 {
 852         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 853         unsigned long mq;
 854         int q;
 855
 856         spin_lock_bh(&mvm->queue_info_lock);
 857         mq = mvm->queue_info[queue].hw_queue_to_mac80211;
 858         spin_unlock_bh(&mvm->queue_info_lock);
 859
 860         if (WARN_ON_ONCE(!mq))
 861                 return;
 862
 863         for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
 864                 if (atomic_inc_return(&mvm->mac80211_queue_stop_count[q]) > 1) {
 865                         IWL_DEBUG_TX_QUEUES(mvm,
 866                                             "queue %d (mac80211 %d) already stopped\n",
 867                                             queue, q);
 868                         continue;
 869                 }
 870
 871                 ieee80211_stop_queue(mvm->hw, q);
 872         }
 873 }
 874
 875 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
 876                              const struct iwl_device_cmd *cmd)
 877 {
 878         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 879
 880         /*
 881          * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
 882          * commands that need to block the Tx queues.
 883          */
 884         iwl_trans_block_txq_ptrs(mvm->trans, false);
 885 }
 886
 887 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
 888 {
 889         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 890         unsigned long mq;
 891         int q;
 892
 893         spin_lock_bh(&mvm->queue_info_lock);
 894         mq = mvm->queue_info[queue].hw_queue_to_mac80211;
 895         spin_unlock_bh(&mvm->queue_info_lock);
 896
 897         if (WARN_ON_ONCE(!mq))
 898                 return;
 899
 900         for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
 901                 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[q]) > 0) {
 902                         IWL_DEBUG_TX_QUEUES(mvm,
 903                                             "queue %d (mac80211 %d) still stopped\n",
 904                                             queue, q);
 905                         continue;
 906                 }
 907
 908                 ieee80211_wake_queue(mvm->hw, q);
 909         }
 910 }
 911
 912 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
 913 {
 914         if (state)
 915                 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
 916         else
 917                 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
 918
 919         wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
 920 }
 921
 922 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
 923 {
 924         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 925         bool calibrating = ACCESS_ONCE(mvm->calibrating);
 926
 927         if (state)
 928                 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
 929         else
 930                 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
 931
 932         wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
 933
 934         /* iwl_run_init_mvm_ucode is waiting for results, abort it */
 935         if (calibrating)
 936                 iwl_abort_notification_waits(&mvm->notif_wait);
 937
 938         /*
 939          * Stop the device if we run OPERATIONAL firmware or if we are in the
 940          * middle of the calibrations.
 941          */
 942         return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating);
 943 }
 944
 945 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
 946 {
 947         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 948         struct ieee80211_tx_info *info;
 949
 950         info = IEEE80211_SKB_CB(skb);
 951         iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
 952         ieee80211_free_txskb(mvm->hw, skb);
 953 }
 954
 955 struct iwl_mvm_reprobe {
 956         struct device *dev;
 957         struct work_struct work;
 958 };
 959
 960 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
 961 {
 962         struct iwl_mvm_reprobe *reprobe;
 963
 964         reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
 965         if (device_reprobe(reprobe->dev))
 966                 dev_err(reprobe->dev, "reprobe failed!\n");
 967         kfree(reprobe);
 968         module_put(THIS_MODULE);
 969 }
 970
 971 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
 972 {
 973         struct iwl_mvm *mvm =
 974                 container_of(work, struct iwl_mvm, fw_dump_wk.work);
 975
 976         if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT))
 977                 return;
 978
 979         mutex_lock(&mvm->mutex);
 980
 981         /* stop recording */
 982         if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
 983                 iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100);
 984         } else {
 985                 iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0);
 986                 /* wait before we collect the data till the DBGC stop */
 987                 udelay(100);
 988         }
 989
 990         iwl_mvm_fw_error_dump(mvm);
 991
 992         /* start recording again if the firmware is not crashed */
 993         WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) &&
 994                      mvm->fw->dbg_dest_tlv &&
 995                      iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf));
 996
 997         mutex_unlock(&mvm->mutex);
 998
 999         iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
1000 }
1001
1002 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1003 {
1004         iwl_abort_notification_waits(&mvm->notif_wait);
1005
1006         /*
1007          * This is a bit racy, but worst case we tell mac80211 about
1008          * a stopped/aborted scan when that was already done which
1009          * is not a problem. It is necessary to abort any os scan
1010          * here because mac80211 requires having the scan cleared
1011          * before restarting.
1012          * We'll reset the scan_status to NONE in restart cleanup in
1013          * the next start() call from mac80211. If restart isn't called
1014          * (no fw restart) scan status will stay busy.
1015          */
1016         iwl_mvm_report_scan_aborted(mvm);
1017
1018         /*
1019          * If we're restarting already, don't cycle restarts.
1020          * If INIT fw asserted, it will likely fail again.
1021          * If WoWLAN fw asserted, don't restart either, mac80211
1022          * can't recover this since we're already half suspended.
1023          */
1024         if (!mvm->restart_fw && fw_error) {
1025                 iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert,
1026                                             NULL);
1027         } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1028                                     &mvm->status)) {
1029                 struct iwl_mvm_reprobe *reprobe;
1030
1031                 IWL_ERR(mvm,
1032                         "Firmware error during reconfiguration - reprobe!\n");
1033
1034                 /*
1035                  * get a module reference to avoid doing this while unloading
1036                  * anyway and to avoid scheduling a work with code that's
1037                  * being removed.
1038                  */
1039                 if (!try_module_get(THIS_MODULE)) {
1040                         IWL_ERR(mvm, "Module is being unloaded - abort\n");
1041                         return;
1042                 }
1043
1044                 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1045                 if (!reprobe) {
1046                         module_put(THIS_MODULE);
1047                         return;
1048                 }
1049                 reprobe->dev = mvm->trans->dev;
1050                 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1051                 schedule_work(&reprobe->work);
1052         } else if (mvm->cur_ucode == IWL_UCODE_REGULAR) {
1053                 /* don't let the transport/FW power down */
1054                 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1055
1056                 if (fw_error && mvm->restart_fw > 0)
1057                         mvm->restart_fw--;
1058                 ieee80211_restart_hw(mvm->hw);
1059         }
1060 }
1061
1062 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
1063 {
1064         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1065
1066         iwl_mvm_dump_nic_error_log(mvm);
1067
1068         iwl_mvm_nic_restart(mvm, true);
1069 }
1070
1071 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1072 {
1073         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1074
1075         WARN_ON(1);
1076         iwl_mvm_nic_restart(mvm, true);
1077 }
1078
1079 struct iwl_d0i3_iter_data {
1080         struct iwl_mvm *mvm;
1081         struct ieee80211_vif *connected_vif;
1082         u8 ap_sta_id;
1083         u8 vif_count;
1084         u8 offloading_tid;
1085         bool disable_offloading;
1086 };
1087
1088 static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
1089                                         struct ieee80211_vif *vif,
1090                                         struct iwl_d0i3_iter_data *iter_data)
1091 {
1092         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1093         struct ieee80211_sta *ap_sta;
1094         struct iwl_mvm_sta *mvmsta;
1095         u32 available_tids = 0;
1096         u8 tid;
1097
1098         if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
1099                     mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
1100                 return false;
1101
1102         ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]);
1103         if (IS_ERR_OR_NULL(ap_sta))
1104                 return false;
1105
1106         mvmsta = iwl_mvm_sta_from_mac80211(ap_sta);
1107         spin_lock_bh(&mvmsta->lock);
1108         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1109                 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
1110
1111                 /*
1112                  * in case of pending tx packets, don't use this tid
1113                  * for offloading in order to prevent reuse of the same
1114                  * qos seq counters.
1115                  */
1116                 if (iwl_mvm_tid_queued(tid_data))
1117                         continue;
1118
1119                 if (tid_data->state != IWL_AGG_OFF)
1120                         continue;
1121
1122                 available_tids |= BIT(tid);
1123         }
1124         spin_unlock_bh(&mvmsta->lock);
1125
1126         /*
1127          * disallow protocol offloading if we have no available tid
1128          * (with no pending frames and no active aggregation,
1129          * as we don't handle "holes" properly - the scheduler needs the
1130          * frame's seq number and TFD index to match)
1131          */
1132         if (!available_tids)
1133                 return true;
1134
1135         /* for simplicity, just use the first available tid */
1136         iter_data->offloading_tid = ffs(available_tids) - 1;
1137         return false;
1138 }
1139
1140 static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
1141                                         struct ieee80211_vif *vif)
1142 {
1143         struct iwl_d0i3_iter_data *data = _data;
1144         struct iwl_mvm *mvm = data->mvm;
1145         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1146         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1147
1148         IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
1149         if (vif->type != NL80211_IFTYPE_STATION ||
1150             !vif->bss_conf.assoc)
1151                 return;
1152
1153         /*
1154          * in case of pending tx packets or active aggregations,
1155          * avoid offloading features in order to prevent reuse of
1156          * the same qos seq counters.
1157          */
1158         if (iwl_mvm_disallow_offloading(mvm, vif, data))
1159                 data->disable_offloading = true;
1160
1161         iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
1162         iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading,
1163                                    false, flags);
1164
1165         /*
1166          * on init/association, mvm already configures POWER_TABLE_CMD
1167          * and REPLY_MCAST_FILTER_CMD, so currently don't
1168          * reconfigure them (we might want to use different
1169          * params later on, though).
1170          */
1171         data->ap_sta_id = mvmvif->ap_sta_id;
1172         data->vif_count++;
1173
1174         /*
1175          * no new commands can be sent at this stage, so it's safe
1176          * to save the vif pointer during d0i3 entrance.
1177          */
1178         data->connected_vif = vif;
1179 }
1180
1181 static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
1182                                     struct iwl_wowlan_config_cmd *cmd,
1183                                     struct iwl_d0i3_iter_data *iter_data)
1184 {
1185         struct ieee80211_sta *ap_sta;
1186         struct iwl_mvm_sta *mvm_ap_sta;
1187
1188         if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
1189                 return;
1190
1191         rcu_read_lock();
1192
1193         ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
1194         if (IS_ERR_OR_NULL(ap_sta))
1195                 goto out;
1196
1197         mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
1198         cmd->is_11n_connection = ap_sta->ht_cap.ht_supported;
1199         cmd->offloading_tid = iter_data->offloading_tid;
1200         cmd->flags = ENABLE_L3_FILTERING | ENABLE_NBNS_FILTERING |
1201                 ENABLE_DHCP_FILTERING;
1202         /*
1203          * The d0i3 uCode takes care of the nonqos counters,
1204          * so configure only the qos seq ones.
1205          */
1206         iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd);
1207 out:
1208         rcu_read_unlock();
1209 }
1210
1211 int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
1212 {
1213         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1214         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1215         int ret;
1216         struct iwl_d0i3_iter_data d0i3_iter_data = {
1217                 .mvm = mvm,
1218         };
1219         struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1220                 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
1221                                              IWL_WOWLAN_WAKEUP_BEACON_MISS |
1222                                              IWL_WOWLAN_WAKEUP_LINK_CHANGE |
1223                                              IWL_WOWLAN_WAKEUP_BCN_FILTERING),
1224         };
1225         struct iwl_d3_manager_config d3_cfg_cmd = {
1226                 .min_sleep_time = cpu_to_le32(1000),
1227                 .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR),
1228         };
1229
1230         IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
1231
1232         if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1233                 return -EINVAL;
1234
1235         set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1236
1237         /*
1238          * iwl_mvm_ref_sync takes a reference before checking the flag.
1239          * so by checking there is no held reference we prevent a state
1240          * in which iwl_mvm_ref_sync continues successfully while we
1241          * configure the firmware to enter d0i3
1242          */
1243         if (iwl_mvm_ref_taken(mvm)) {
1244                 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n");
1245                 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1246                 wake_up(&mvm->d0i3_exit_waitq);
1247                 return 1;
1248         }
1249
1250         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1251                                                    IEEE80211_IFACE_ITER_NORMAL,
1252                                                    iwl_mvm_enter_d0i3_iterator,
1253                                                    &d0i3_iter_data);
1254         if (d0i3_iter_data.vif_count == 1) {
1255                 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
1256                 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
1257         } else {
1258                 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
1259                 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1260                 mvm->d0i3_offloading = false;
1261         }
1262
1263         /* make sure we have no running tx while configuring the seqno */
1264         synchronize_net();
1265
1266         /* Flush the hw queues, in case something got queued during entry */
1267         ret = iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm), flags);
1268         if (ret)
1269                 return ret;
1270
1271         /* configure wowlan configuration only if needed */
1272         if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) {
1273                 iwl_mvm_wowlan_config_key_params(mvm,
1274                                                  d0i3_iter_data.connected_vif,
1275                                                  true, flags);
1276
1277                 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd,
1278                                         &d0i3_iter_data);
1279
1280                 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
1281                                            sizeof(wowlan_config_cmd),
1282                                            &wowlan_config_cmd);
1283                 if (ret)
1284                         return ret;
1285         }
1286
1287         return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
1288                                     flags | CMD_MAKE_TRANS_IDLE,
1289                                     sizeof(d3_cfg_cmd), &d3_cfg_cmd);
1290 }
1291
1292 static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
1293                                        struct ieee80211_vif *vif)
1294 {
1295         struct iwl_mvm *mvm = _data;
1296         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
1297
1298         IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
1299         if (vif->type != NL80211_IFTYPE_STATION ||
1300             !vif->bss_conf.assoc)
1301                 return;
1302
1303         iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
1304 }
1305
1306 struct iwl_mvm_d0i3_exit_work_iter_data {
1307         struct iwl_mvm *mvm;
1308         struct iwl_wowlan_status *status;
1309         u32 wakeup_reasons;
1310 };
1311
1312 static void iwl_mvm_d0i3_exit_work_iter(void *_data, u8 *mac,
1313                                         struct ieee80211_vif *vif)
1314 {
1315         struct iwl_mvm_d0i3_exit_work_iter_data *data = _data;
1316         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1317         u32 reasons = data->wakeup_reasons;
1318
1319         /* consider only the relevant station interface */
1320         if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1321             data->mvm->d0i3_ap_sta_id != mvmvif->ap_sta_id)
1322                 return;
1323
1324         if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)
1325                 iwl_mvm_connection_loss(data->mvm, vif, "D0i3");
1326         else if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON)
1327                 ieee80211_beacon_loss(vif);
1328         else
1329                 iwl_mvm_d0i3_update_keys(data->mvm, vif, data->status);
1330 }
1331
1332 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
1333 {
1334         struct ieee80211_sta *sta = NULL;
1335         struct iwl_mvm_sta *mvm_ap_sta;
1336         int i;
1337         bool wake_queues = false;
1338
1339         lockdep_assert_held(&mvm->mutex);
1340
1341         spin_lock_bh(&mvm->d0i3_tx_lock);
1342
1343         if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
1344                 goto out;
1345
1346         IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
1347
1348         /* get the sta in order to update seq numbers and re-enqueue skbs */
1349         sta = rcu_dereference_protected(
1350                         mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
1351                         lockdep_is_held(&mvm->mutex));
1352
1353         if (IS_ERR_OR_NULL(sta)) {
1354                 sta = NULL;
1355                 goto out;
1356         }
1357
1358         if (mvm->d0i3_offloading && qos_seq) {
1359                 /* update qos seq numbers if offloading was enabled */
1360                 mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta);
1361                 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1362                         u16 seq = le16_to_cpu(qos_seq[i]);
1363                         /* firmware stores last-used one, we store next one */
1364                         seq += 0x10;
1365                         mvm_ap_sta->tid_data[i].seq_number = seq;
1366                 }
1367         }
1368 out:
1369         /* re-enqueue (or drop) all packets */
1370         while (!skb_queue_empty(&mvm->d0i3_tx)) {
1371                 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
1372
1373                 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
1374                         ieee80211_free_txskb(mvm->hw, skb);
1375
1376                 /* if the skb_queue is not empty, we need to wake queues */
1377                 wake_queues = true;
1378         }
1379         clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1380         wake_up(&mvm->d0i3_exit_waitq);
1381         mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1382         if (wake_queues)
1383                 ieee80211_wake_queues(mvm->hw);
1384
1385         spin_unlock_bh(&mvm->d0i3_tx_lock);
1386 }
1387
1388 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
1389 {
1390         struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
1391         struct iwl_host_cmd get_status_cmd = {
1392                 .id = WOWLAN_GET_STATUSES,
1393                 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
1394         };
1395         struct iwl_mvm_d0i3_exit_work_iter_data iter_data = {
1396                 .mvm = mvm,
1397         };
1398
1399         struct iwl_wowlan_status *status;
1400         int ret;
1401         u32 wakeup_reasons = 0;
1402         __le16 *qos_seq = NULL;
1403
1404         mutex_lock(&mvm->mutex);
1405         ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
1406         if (ret)
1407                 goto out;
1408
1409         if (!get_status_cmd.resp_pkt)
1410                 goto out;
1411
1412         status = (void *)get_status_cmd.resp_pkt->data;
1413         wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
1414         qos_seq = status->qos_seq_ctr;
1415
1416         IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
1417
1418         iter_data.wakeup_reasons = wakeup_reasons;
1419         iter_data.status = status;
1420         ieee80211_iterate_active_interfaces(mvm->hw,
1421                                             IEEE80211_IFACE_ITER_NORMAL,
1422                                             iwl_mvm_d0i3_exit_work_iter,
1423                                             &iter_data);
1424 out:
1425         iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
1426
1427         IWL_DEBUG_INFO(mvm, "d0i3 exit completed (wakeup reasons: 0x%x)\n",
1428                        wakeup_reasons);
1429
1430         /* qos_seq might point inside resp_pkt, so free it only now */
1431         if (get_status_cmd.resp_pkt)
1432                 iwl_free_resp(&get_status_cmd);
1433
1434         /* the FW might have updated the regdomain */
1435         iwl_mvm_update_changed_regdom(mvm);
1436
1437         iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
1438         mutex_unlock(&mvm->mutex);
1439 }
1440
1441 int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
1442 {
1443         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
1444                     CMD_WAKE_UP_TRANS;
1445         int ret;
1446
1447         IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
1448
1449         if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1450                 return -EINVAL;
1451
1452         mutex_lock(&mvm->d0i3_suspend_mutex);
1453         if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
1454                 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
1455                 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
1456                 mutex_unlock(&mvm->d0i3_suspend_mutex);
1457                 return 0;
1458         }
1459         mutex_unlock(&mvm->d0i3_suspend_mutex);
1460
1461         ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
1462         if (ret)
1463                 goto out;
1464
1465         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1466                                                    IEEE80211_IFACE_ITER_NORMAL,
1467                                                    iwl_mvm_exit_d0i3_iterator,
1468                                                    mvm);
1469 out:
1470         schedule_work(&mvm->d0i3_exit_work);
1471         return ret;
1472 }
1473
1474 int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
1475 {
1476         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1477
1478         iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
1479         return _iwl_mvm_exit_d0i3(mvm);
1480 }
1481
1482 #define IWL_MVM_COMMON_OPS                                      \
1483         /* these could be differentiated */                     \
1484         .async_cb = iwl_mvm_async_cb,                           \
1485         .queue_full = iwl_mvm_stop_sw_queue,                    \
1486         .queue_not_full = iwl_mvm_wake_sw_queue,                \
1487         .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,              \
1488         .free_skb = iwl_mvm_free_skb,                           \
1489         .nic_error = iwl_mvm_nic_error,                         \
1490         .cmd_queue_full = iwl_mvm_cmd_queue_full,               \
1491         .nic_config = iwl_mvm_nic_config,                       \
1492         .enter_d0i3 = iwl_mvm_enter_d0i3,                       \
1493         .exit_d0i3 = iwl_mvm_exit_d0i3,                         \
1494         /* as we only register one, these MUST be common! */    \
1495         .start = iwl_op_mode_mvm_start,                         \
1496         .stop = iwl_op_mode_mvm_stop
1497
1498 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1499         IWL_MVM_COMMON_OPS,
1500         .rx = iwl_mvm_rx,
1501 };
1502
1503 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1504                               struct napi_struct *napi,
1505                               struct iwl_rx_cmd_buffer *rxb,
1506                               unsigned int queue)
1507 {
1508         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1509         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1510
1511         if (unlikely(pkt->hdr.cmd == FRAME_RELEASE))
1512                 iwl_mvm_rx_frame_release(mvm, rxb, queue);
1513         else
1514                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1515 }
1516
1517 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1518         IWL_MVM_COMMON_OPS,
1519         .rx = iwl_mvm_rx_mq,
1520         .rx_rss = iwl_mvm_rx_mq_rss,
1521 };