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
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  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
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  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
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  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  * Copyright(c) 2016 Intel Deutschland GmbH
  37  * All rights reserved.
  38  *
  39  * Redistribution and use in source and binary forms, with or without
  40  * modification, are permitted provided that the following conditions
  41  * are met:
  42  *
  43  *  * Redistributions of source code must retain the above copyright
  44  *    notice, this list of conditions and the following disclaimer.
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  46  *    notice, this list of conditions and the following disclaimer in
  47  *    the documentation and/or other materials provided with the
  48  *    distribution.
  49  *  * Neither the name Intel Corporation nor the names of its
  50  *    contributors may be used to endorse or promote products derived
  51  *    from this software without specific prior written permission.
  52  *
  53  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  54  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  55  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  56  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  57  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  58  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  59  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  60  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  61  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  62  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  63  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  64  *
  65  *****************************************************************************/
  66 #include <linux/module.h>
  67 #include <linux/vmalloc.h>
  68 #include <net/mac80211.h>
  69
  70 #include "iwl-notif-wait.h"
  71 #include "iwl-trans.h"
  72 #include "iwl-op-mode.h"
  73 #include "iwl-fw.h"
  74 #include "iwl-debug.h"
  75 #include "iwl-drv.h"
  76 #include "iwl-modparams.h"
  77 #include "mvm.h"
  78 #include "iwl-phy-db.h"
  79 #include "iwl-eeprom-parse.h"
  80 #include "iwl-csr.h"
  81 #include "iwl-io.h"
  82 #include "iwl-prph.h"
  83 #include "rs.h"
  84 #include "fw-api-scan.h"
  85 #include "time-event.h"
  86 #include "fw-dbg.h"
  87 #include "fw-api.h"
  88 #include "fw-api-scan.h"
  89
  90 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
  91 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  92 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
  93 MODULE_LICENSE("GPL");
  94
  95 static const struct iwl_op_mode_ops iwl_mvm_ops;
  96 static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
  97
  98 struct iwl_mvm_mod_params iwlmvm_mod_params = {
  99         .power_scheme = IWL_POWER_SCHEME_BPS,
 100         .tfd_q_hang_detect = true
 101         /* rest of fields are 0 by default */
 102 };
 103
 104 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO);
 105 MODULE_PARM_DESC(init_dbg,
 106                  "set to true to debug an ASSERT in INIT fw (default: false");
 107 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO);
 108 MODULE_PARM_DESC(power_scheme,
 109                  "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
 110 module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect,
 111                    bool, S_IRUGO);
 112 MODULE_PARM_DESC(tfd_q_hang_detect,
 113                  "TFD queues hang detection (default: true");
 114
 115 /*
 116  * module init and exit functions
 117  */
 118 static int __init iwl_mvm_init(void)
 119 {
 120         int ret;
 121
 122         ret = iwl_mvm_rate_control_register();
 123         if (ret) {
 124                 pr_err("Unable to register rate control algorithm: %d\n", ret);
 125                 return ret;
 126         }
 127
 128         ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
 129
 130         if (ret) {
 131                 pr_err("Unable to register MVM op_mode: %d\n", ret);
 132                 iwl_mvm_rate_control_unregister();
 133         }
 134
 135         return ret;
 136 }
 137 module_init(iwl_mvm_init);
 138
 139 static void __exit iwl_mvm_exit(void)
 140 {
 141         iwl_opmode_deregister("iwlmvm");
 142         iwl_mvm_rate_control_unregister();
 143 }
 144 module_exit(iwl_mvm_exit);
 145
 146 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
 147 {
 148         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 149         u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
 150         u32 reg_val = 0;
 151         u32 phy_config = iwl_mvm_get_phy_config(mvm);
 152
 153         radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
 154                          FW_PHY_CFG_RADIO_TYPE_POS;
 155         radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
 156                          FW_PHY_CFG_RADIO_STEP_POS;
 157         radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
 158                          FW_PHY_CFG_RADIO_DASH_POS;
 159
 160         /* SKU control */
 161         reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
 162                                 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
 163         reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
 164                                 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
 165
 166         /* radio configuration */
 167         reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
 168         reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
 169         reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
 170
 171         WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
 172                  ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
 173
 174         /*
 175          * TODO: Bits 7-8 of CSR in 8000 HW family set the ADC sampling, and
 176          * shouldn't be set to any non-zero value. The same is supposed to be
 177          * true of the other HW, but unsetting them (such as the 7260) causes
 178          * automatic tests to fail on seemingly unrelated errors. Need to
 179          * further investigate this, but for now we'll separate cases.
 180          */
 181         if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
 182                 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
 183
 184         iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
 185                                 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
 186                                 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
 187                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
 188                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
 189                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
 190                                 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
 191                                 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI,
 192                                 reg_val);
 193
 194         IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
 195                        radio_cfg_step, radio_cfg_dash);
 196
 197         /*
 198          * W/A : NIC is stuck in a reset state after Early PCIe power off
 199          * (PCIe power is lost before PERST# is asserted), causing ME FW
 200          * to lose ownership and not being able to obtain it back.
 201          */
 202         if (!mvm->trans->cfg->apmg_not_supported)
 203                 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
 204                                        APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
 205                                        ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
 206 }
 207
 208 struct iwl_rx_handlers {
 209         u16 cmd_id;
 210         bool async;
 211         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
 212 };
 213
 214 #define RX_HANDLER(_cmd_id, _fn, _async)        \
 215         { .cmd_id = _cmd_id , .fn = _fn , .async = _async }
 216 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _async) \
 217         { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .async = _async }
 218
 219 /*
 220  * Handlers for fw notifications
 221  * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
 222  * This list should be in order of frequency for performance purposes.
 223  *
 224  * The handler can be SYNC - this means that it will be called in the Rx path
 225  * which can't acquire mvm->mutex. If the handler needs to hold mvm->mutex (and
 226  * only in this case!), it should be set as ASYNC. In that case, it will be
 227  * called from a worker with mvm->mutex held.
 228  */
 229 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
 230         RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, false),
 231         RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, false),
 232
 233         RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true),
 234         RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, true),
 235         RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true),
 236         RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION,
 237                    iwl_mvm_rx_ant_coupling_notif, true),
 238
 239         RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false),
 240         RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, true),
 241
 242         RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false),
 243
 244         RX_HANDLER(SCAN_ITERATION_COMPLETE,
 245                    iwl_mvm_rx_lmac_scan_iter_complete_notif, false),
 246         RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
 247                    iwl_mvm_rx_lmac_scan_complete_notif, true),
 248         RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found,
 249                    false),
 250         RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
 251                    true),
 252         RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
 253                    iwl_mvm_rx_umac_scan_iter_complete_notif, false),
 254
 255         RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
 256
 257         RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
 258                    false),
 259
 260         RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false),
 261         RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
 262                    iwl_mvm_power_uapsd_misbehaving_ap_notif, false),
 263         RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, true),
 264         RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
 265                        iwl_mvm_temp_notif, true),
 266         RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
 267                        iwl_mvm_ct_kill_notif, false),
 268
 269         RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
 270                    true),
 271         RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, false),
 272         RX_HANDLER(TOF_NOTIFICATION, iwl_mvm_tof_resp_handler, true),
 273         RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
 274                        iwl_mvm_rx_stored_beacon_notif, false),
 275
 276 };
 277 #undef RX_HANDLER
 278 #undef RX_HANDLER_GRP
 279
 280 /* Please keep this array *SORTED* by hex value.
 281  * Access is done through binary search
 282  */
 283 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
 284         HCMD_NAME(MVM_ALIVE),
 285         HCMD_NAME(REPLY_ERROR),
 286         HCMD_NAME(ECHO_CMD),
 287         HCMD_NAME(INIT_COMPLETE_NOTIF),
 288         HCMD_NAME(PHY_CONTEXT_CMD),
 289         HCMD_NAME(DBG_CFG),
 290         HCMD_NAME(ANTENNA_COUPLING_NOTIFICATION),
 291         HCMD_NAME(SCAN_CFG_CMD),
 292         HCMD_NAME(SCAN_REQ_UMAC),
 293         HCMD_NAME(SCAN_ABORT_UMAC),
 294         HCMD_NAME(SCAN_COMPLETE_UMAC),
 295         HCMD_NAME(TOF_CMD),
 296         HCMD_NAME(TOF_NOTIFICATION),
 297         HCMD_NAME(ADD_STA_KEY),
 298         HCMD_NAME(ADD_STA),
 299         HCMD_NAME(REMOVE_STA),
 300         HCMD_NAME(FW_GET_ITEM_CMD),
 301         HCMD_NAME(TX_CMD),
 302         HCMD_NAME(SCD_QUEUE_CFG),
 303         HCMD_NAME(TXPATH_FLUSH),
 304         HCMD_NAME(MGMT_MCAST_KEY),
 305         HCMD_NAME(WEP_KEY),
 306         HCMD_NAME(SHARED_MEM_CFG),
 307         HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
 308         HCMD_NAME(MAC_CONTEXT_CMD),
 309         HCMD_NAME(TIME_EVENT_CMD),
 310         HCMD_NAME(TIME_EVENT_NOTIFICATION),
 311         HCMD_NAME(BINDING_CONTEXT_CMD),
 312         HCMD_NAME(TIME_QUOTA_CMD),
 313         HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
 314         HCMD_NAME(LQ_CMD),
 315         HCMD_NAME(FW_PAGING_BLOCK_CMD),
 316         HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
 317         HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
 318         HCMD_NAME(HOT_SPOT_CMD),
 319         HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
 320         HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_CONFIG_CMD),
 321         HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_QUERY_CMD),
 322         HCMD_NAME(BT_COEX_UPDATE_SW_BOOST),
 323         HCMD_NAME(BT_COEX_UPDATE_CORUN_LUT),
 324         HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
 325         HCMD_NAME(BT_COEX_CI),
 326         HCMD_NAME(PHY_CONFIGURATION_CMD),
 327         HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
 328         HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
 329         HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
 330         HCMD_NAME(SCAN_OFFLOAD_CONFIG_CMD),
 331         HCMD_NAME(POWER_TABLE_CMD),
 332         HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
 333         HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
 334         HCMD_NAME(DC2DC_CONFIG_CMD),
 335         HCMD_NAME(NVM_ACCESS_CMD),
 336         HCMD_NAME(SET_CALIB_DEFAULT_CMD),
 337         HCMD_NAME(BEACON_NOTIFICATION),
 338         HCMD_NAME(BEACON_TEMPLATE_CMD),
 339         HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
 340         HCMD_NAME(BT_CONFIG),
 341         HCMD_NAME(STATISTICS_CMD),
 342         HCMD_NAME(STATISTICS_NOTIFICATION),
 343         HCMD_NAME(EOSP_NOTIFICATION),
 344         HCMD_NAME(REDUCE_TX_POWER_CMD),
 345         HCMD_NAME(CARD_STATE_CMD),
 346         HCMD_NAME(CARD_STATE_NOTIFICATION),
 347         HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
 348         HCMD_NAME(TDLS_CONFIG_CMD),
 349         HCMD_NAME(MAC_PM_POWER_TABLE),
 350         HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
 351         HCMD_NAME(MFUART_LOAD_NOTIFICATION),
 352         HCMD_NAME(RSS_CONFIG_CMD),
 353         HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
 354         HCMD_NAME(REPLY_RX_PHY_CMD),
 355         HCMD_NAME(REPLY_RX_MPDU_CMD),
 356         HCMD_NAME(BA_NOTIF),
 357         HCMD_NAME(MCC_UPDATE_CMD),
 358         HCMD_NAME(MCC_CHUB_UPDATE_CMD),
 359         HCMD_NAME(MARKER_CMD),
 360         HCMD_NAME(BT_COEX_PRIO_TABLE),
 361         HCMD_NAME(BT_COEX_PROT_ENV),
 362         HCMD_NAME(BT_PROFILE_NOTIFICATION),
 363         HCMD_NAME(BCAST_FILTER_CMD),
 364         HCMD_NAME(MCAST_FILTER_CMD),
 365         HCMD_NAME(REPLY_SF_CFG_CMD),
 366         HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
 367         HCMD_NAME(D3_CONFIG_CMD),
 368         HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
 369         HCMD_NAME(OFFLOADS_QUERY_CMD),
 370         HCMD_NAME(REMOTE_WAKE_CONFIG_CMD),
 371         HCMD_NAME(MATCH_FOUND_NOTIFICATION),
 372         HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER),
 373         HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
 374         HCMD_NAME(WOWLAN_PATTERNS),
 375         HCMD_NAME(WOWLAN_CONFIGURATION),
 376         HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
 377         HCMD_NAME(WOWLAN_TKIP_PARAM),
 378         HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
 379         HCMD_NAME(WOWLAN_GET_STATUSES),
 380         HCMD_NAME(WOWLAN_TX_POWER_PER_DB),
 381         HCMD_NAME(SCAN_ITERATION_COMPLETE),
 382         HCMD_NAME(D0I3_END_CMD),
 383         HCMD_NAME(LTR_CONFIG),
 384         HCMD_NAME(REPLY_DEBUG_CMD),
 385 };
 386
 387 /* Please keep this array *SORTED* by hex value.
 388  * Access is done through binary search
 389  */
 390 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
 391         HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
 392         HCMD_NAME(CTDP_CONFIG_CMD),
 393         HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
 394         HCMD_NAME(CT_KILL_NOTIFICATION),
 395         HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
 396 };
 397
 398 /* Please keep this array *SORTED* by hex value.
 399  * Access is done through binary search
 400  */
 401 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
 402         HCMD_NAME(STORED_BEACON_NTF),
 403 };
 404
 405 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
 406         [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 407         [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 408         [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
 409         [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
 410 };
 411
 412 /* this forward declaration can avoid to export the function */
 413 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
 414 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk);
 415
 416 static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg)
 417 {
 418         const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs;
 419
 420         if (!pwr_tx_backoff)
 421                 return 0;
 422
 423         while (pwr_tx_backoff->pwr) {
 424                 if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr)
 425                         return pwr_tx_backoff->backoff;
 426
 427                 pwr_tx_backoff++;
 428         }
 429
 430         return 0;
 431 }
 432
 433 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work);
 434
 435 static struct iwl_op_mode *
 436 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 437                       const struct iwl_fw *fw, struct dentry *dbgfs_dir)
 438 {
 439         struct ieee80211_hw *hw;
 440         struct iwl_op_mode *op_mode;
 441         struct iwl_mvm *mvm;
 442         struct iwl_trans_config trans_cfg = {};
 443         static const u8 no_reclaim_cmds[] = {
 444                 TX_CMD,
 445         };
 446         int err, scan_size;
 447         u32 min_backoff;
 448
 449         /*
 450          * We use IWL_MVM_STATION_COUNT to check the validity of the station
 451          * index all over the driver - check that its value corresponds to the
 452          * array size.
 453          */
 454         BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);
 455
 456         /********************************
 457          * 1. Allocating and configuring HW data
 458          ********************************/
 459         hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
 460                                 sizeof(struct iwl_mvm),
 461                                 &iwl_mvm_hw_ops);
 462         if (!hw)
 463                 return NULL;
 464
 465         if (cfg->max_rx_agg_size)
 466                 hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
 467
 468         if (cfg->max_tx_agg_size)
 469                 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
 470
 471         op_mode = hw->priv;
 472
 473         mvm = IWL_OP_MODE_GET_MVM(op_mode);
 474         mvm->dev = trans->dev;
 475         mvm->trans = trans;
 476         mvm->cfg = cfg;
 477         mvm->fw = fw;
 478         mvm->hw = hw;
 479
 480         if (iwl_mvm_has_new_rx_api(mvm)) {
 481                 op_mode->ops = &iwl_mvm_ops_mq;
 482                 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_desc);
 483         } else {
 484                 op_mode->ops = &iwl_mvm_ops;
 485                 trans->rx_mpdu_cmd_hdr_size =
 486                         sizeof(struct iwl_rx_mpdu_res_start);
 487
 488                 if (WARN_ON(trans->num_rx_queues > 1))
 489                         goto out_free;
 490         }
 491
 492         mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;
 493
 494         mvm->aux_queue = 15;
 495         mvm->first_agg_queue = 16;
 496         mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
 497         if (mvm->cfg->base_params->num_of_queues == 16) {
 498                 mvm->aux_queue = 11;
 499                 mvm->first_agg_queue = 12;
 500         }
 501         mvm->sf_state = SF_UNINIT;
 502         mvm->cur_ucode = IWL_UCODE_INIT;
 503         mvm->drop_bcn_ap_mode = true;
 504
 505         mutex_init(&mvm->mutex);
 506         mutex_init(&mvm->d0i3_suspend_mutex);
 507         spin_lock_init(&mvm->async_handlers_lock);
 508         INIT_LIST_HEAD(&mvm->time_event_list);
 509         INIT_LIST_HEAD(&mvm->aux_roc_te_list);
 510         INIT_LIST_HEAD(&mvm->async_handlers_list);
 511         spin_lock_init(&mvm->time_event_lock);
 512         spin_lock_init(&mvm->queue_info_lock);
 513
 514         INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
 515         INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
 516         INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
 517         INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
 518         INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk);
 519         INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
 520
 521         spin_lock_init(&mvm->d0i3_tx_lock);
 522         spin_lock_init(&mvm->refs_lock);
 523         skb_queue_head_init(&mvm->d0i3_tx);
 524         init_waitqueue_head(&mvm->d0i3_exit_waitq);
 525
 526         SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
 527
 528         /*
 529          * Populate the state variables that the transport layer needs
 530          * to know about.
 531          */
 532         trans_cfg.op_mode = op_mode;
 533         trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
 534         trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
 535         switch (iwlwifi_mod_params.amsdu_size) {
 536         case IWL_AMSDU_4K:
 537                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
 538                 break;
 539         case IWL_AMSDU_8K:
 540                 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
 541                 break;
 542         case IWL_AMSDU_12K:
 543                 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
 544                 break;
 545         default:
 546                 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
 547                        iwlwifi_mod_params.amsdu_size);
 548                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
 549         }
 550         trans_cfg.wide_cmd_header = fw_has_api(&mvm->fw->ucode_capa,
 551                                                IWL_UCODE_TLV_API_WIDE_CMD_HDR);
 552
 553         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
 554                 trans_cfg.bc_table_dword = true;
 555
 556         trans_cfg.command_groups = iwl_mvm_groups;
 557         trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
 558
 559         trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
 560         trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
 561         trans_cfg.scd_set_active = true;
 562
 563         trans_cfg.sdio_adma_addr = fw->sdio_adma_addr;
 564         trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD;
 565
 566         /* Set a short watchdog for the command queue */
 567         trans_cfg.cmd_q_wdg_timeout =
 568                 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
 569
 570         snprintf(mvm->hw->wiphy->fw_version,
 571                  sizeof(mvm->hw->wiphy->fw_version),
 572                  "%s", fw->fw_version);
 573
 574         /* Configure transport layer */
 575         iwl_trans_configure(mvm->trans, &trans_cfg);
 576
 577         trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
 578         trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv;
 579         trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num;
 580         memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv,
 581                sizeof(trans->dbg_conf_tlv));
 582         trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv;
 583
 584         /* set up notification wait support */
 585         iwl_notification_wait_init(&mvm->notif_wait);
 586
 587         /* Init phy db */
 588         mvm->phy_db = iwl_phy_db_init(trans);
 589         if (!mvm->phy_db) {
 590                 IWL_ERR(mvm, "Cannot init phy_db\n");
 591                 goto out_free;
 592         }
 593
 594         IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
 595                  mvm->cfg->name, mvm->trans->hw_rev);
 596
 597         min_backoff = calc_min_backoff(trans, cfg);
 598         iwl_mvm_thermal_initialize(mvm, min_backoff);
 599
 600         if (iwlwifi_mod_params.nvm_file)
 601                 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
 602         else
 603                 IWL_DEBUG_EEPROM(mvm->trans->dev,
 604                                  "working without external nvm file\n");
 605
 606         if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name,
 607                  "not allowing power-up and not having nvm_file\n"))
 608                 goto out_free;
 609
 610         /*
 611          * Even if nvm exists in the nvm_file driver should read again the nvm
 612          * from the nic because there might be entries that exist in the OTP
 613          * and not in the file.
 614          * for nics with no_power_up_nic_in_init: rely completley on nvm_file
 615          */
 616         if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) {
 617                 err = iwl_nvm_init(mvm, false);
 618                 if (err)
 619                         goto out_free;
 620         } else {
 621                 err = iwl_trans_start_hw(mvm->trans);
 622                 if (err)
 623                         goto out_free;
 624
 625                 mutex_lock(&mvm->mutex);
 626                 iwl_mvm_ref(mvm, IWL_MVM_REF_INIT_UCODE);
 627                 err = iwl_run_init_mvm_ucode(mvm, true);
 628                 if (!err || !iwlmvm_mod_params.init_dbg)
 629                         iwl_trans_stop_device(trans);
 630                 iwl_mvm_unref(mvm, IWL_MVM_REF_INIT_UCODE);
 631                 mutex_unlock(&mvm->mutex);
 632                 /* returns 0 if successful, 1 if success but in rfkill */
 633                 if (err < 0 && !iwlmvm_mod_params.init_dbg) {
 634                         IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
 635                         goto out_free;
 636                 }
 637         }
 638
 639         scan_size = iwl_mvm_scan_size(mvm);
 640
 641         mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
 642         if (!mvm->scan_cmd)
 643                 goto out_free;
 644
 645         /* Set EBS as successful as long as not stated otherwise by the FW. */
 646         mvm->last_ebs_successful = true;
 647
 648         err = iwl_mvm_mac_setup_register(mvm);
 649         if (err)
 650                 goto out_free;
 651
 652         err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
 653         if (err)
 654                 goto out_unregister;
 655
 656         memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
 657
 658         /* rpm starts with a taken reference, we can release it now */
 659         iwl_trans_unref(mvm->trans);
 660
 661         iwl_mvm_tof_init(mvm);
 662
 663         /* init RSS hash key */
 664         get_random_bytes(mvm->secret_key, sizeof(mvm->secret_key));
 665
 666         return op_mode;
 667
 668  out_unregister:
 669         ieee80211_unregister_hw(mvm->hw);
 670         iwl_mvm_leds_exit(mvm);
 671         iwl_mvm_thermal_exit(mvm);
 672  out_free:
 673         flush_delayed_work(&mvm->fw_dump_wk);
 674         iwl_phy_db_free(mvm->phy_db);
 675         kfree(mvm->scan_cmd);
 676         if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name)
 677                 iwl_trans_op_mode_leave(trans);
 678         ieee80211_free_hw(mvm->hw);
 679         return NULL;
 680 }
 681
 682 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
 683 {
 684         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 685         int i;
 686
 687         iwl_mvm_leds_exit(mvm);
 688
 689         iwl_mvm_thermal_exit(mvm);
 690
 691         ieee80211_unregister_hw(mvm->hw);
 692
 693         kfree(mvm->scan_cmd);
 694         kfree(mvm->mcast_filter_cmd);
 695         mvm->mcast_filter_cmd = NULL;
 696
 697 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
 698         kfree(mvm->d3_resume_sram);
 699 #endif
 700
 701         iwl_trans_op_mode_leave(mvm->trans);
 702
 703         iwl_phy_db_free(mvm->phy_db);
 704         mvm->phy_db = NULL;
 705
 706         iwl_free_nvm_data(mvm->nvm_data);
 707         for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
 708                 kfree(mvm->nvm_sections[i].data);
 709
 710         iwl_mvm_tof_clean(mvm);
 711
 712         ieee80211_free_hw(mvm->hw);
 713 }
 714
 715 struct iwl_async_handler_entry {
 716         struct list_head list;
 717         struct iwl_rx_cmd_buffer rxb;
 718         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
 719 };
 720
 721 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
 722 {
 723         struct iwl_async_handler_entry *entry, *tmp;
 724
 725         spin_lock_bh(&mvm->async_handlers_lock);
 726         list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
 727                 iwl_free_rxb(&entry->rxb);
 728                 list_del(&entry->list);
 729                 kfree(entry);
 730         }
 731         spin_unlock_bh(&mvm->async_handlers_lock);
 732 }
 733
 734 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
 735 {
 736         struct iwl_mvm *mvm =
 737                 container_of(wk, struct iwl_mvm, async_handlers_wk);
 738         struct iwl_async_handler_entry *entry, *tmp;
 739         struct list_head local_list;
 740
 741         INIT_LIST_HEAD(&local_list);
 742
 743         /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
 744         mutex_lock(&mvm->mutex);
 745
 746         /*
 747          * Sync with Rx path with a lock. Remove all the entries from this list,
 748          * add them to a local one (lock free), and then handle them.
 749          */
 750         spin_lock_bh(&mvm->async_handlers_lock);
 751         list_splice_init(&mvm->async_handlers_list, &local_list);
 752         spin_unlock_bh(&mvm->async_handlers_lock);
 753
 754         list_for_each_entry_safe(entry, tmp, &local_list, list) {
 755                 entry->fn(mvm, &entry->rxb);
 756                 iwl_free_rxb(&entry->rxb);
 757                 list_del(&entry->list);
 758                 kfree(entry);
 759         }
 760         mutex_unlock(&mvm->mutex);
 761 }
 762
 763 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
 764                                             struct iwl_rx_packet *pkt)
 765 {
 766         struct iwl_fw_dbg_trigger_tlv *trig;
 767         struct iwl_fw_dbg_trigger_cmd *cmds_trig;
 768         int i;
 769
 770         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF))
 771                 return;
 772
 773         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF);
 774         cmds_trig = (void *)trig->data;
 775
 776         if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig))
 777                 return;
 778
 779         for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
 780                 /* don't collect on CMD 0 */
 781                 if (!cmds_trig->cmds[i].cmd_id)
 782                         break;
 783
 784                 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
 785                     cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
 786                         continue;
 787
 788                 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
 789                                             "CMD 0x%02x.%02x received",
 790                                             pkt->hdr.group_id, pkt->hdr.cmd);
 791                 break;
 792         }
 793 }
 794
 795 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
 796                               struct iwl_rx_cmd_buffer *rxb,
 797                               struct iwl_rx_packet *pkt)
 798 {
 799         int i;
 800
 801         iwl_mvm_rx_check_trigger(mvm, pkt);
 802
 803         /*
 804          * Do the notification wait before RX handlers so
 805          * even if the RX handler consumes the RXB we have
 806          * access to it in the notification wait entry.
 807          */
 808         iwl_notification_wait_notify(&mvm->notif_wait, pkt);
 809
 810         for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
 811                 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
 812                 struct iwl_async_handler_entry *entry;
 813
 814                 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
 815                         continue;
 816
 817                 if (!rx_h->async) {
 818                         rx_h->fn(mvm, rxb);
 819                         return;
 820                 }
 821
 822                 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
 823                 /* we can't do much... */
 824                 if (!entry)
 825                         return;
 826
 827                 entry->rxb._page = rxb_steal_page(rxb);
 828                 entry->rxb._offset = rxb->_offset;
 829                 entry->rxb._rx_page_order = rxb->_rx_page_order;
 830                 entry->fn = rx_h->fn;
 831                 spin_lock(&mvm->async_handlers_lock);
 832                 list_add_tail(&entry->list, &mvm->async_handlers_list);
 833                 spin_unlock(&mvm->async_handlers_lock);
 834                 schedule_work(&mvm->async_handlers_wk);
 835                 break;
 836         }
 837 }
 838
 839 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
 840                        struct napi_struct *napi,
 841                        struct iwl_rx_cmd_buffer *rxb)
 842 {
 843         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 844         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 845
 846         if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD))
 847                 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
 848         else if (pkt->hdr.cmd == FRAME_RELEASE)
 849                 iwl_mvm_rx_frame_release(mvm, rxb, 0);
 850         else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD)
 851                 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
 852         else
 853                 iwl_mvm_rx_common(mvm, rxb, pkt);
 854 }
 855
 856 static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
 857                           struct napi_struct *napi,
 858                           struct iwl_rx_cmd_buffer *rxb)
 859 {
 860         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 861         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 862
 863         if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD))
 864                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
 865         else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD)
 866                 iwl_mvm_rx_phy_cmd_mq(mvm, rxb);
 867         else
 868                 iwl_mvm_rx_common(mvm, rxb, pkt);
 869 }
 870
 871 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
 872 {
 873         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 874         unsigned long mq;
 875         int q;
 876
 877         spin_lock_bh(&mvm->queue_info_lock);
 878         mq = mvm->queue_info[queue].hw_queue_to_mac80211;
 879         spin_unlock_bh(&mvm->queue_info_lock);
 880
 881         if (WARN_ON_ONCE(!mq))
 882                 return;
 883
 884         for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
 885                 if (atomic_inc_return(&mvm->mac80211_queue_stop_count[q]) > 1) {
 886                         IWL_DEBUG_TX_QUEUES(mvm,
 887                                             "queue %d (mac80211 %d) already stopped\n",
 888                                             queue, q);
 889                         continue;
 890                 }
 891
 892                 ieee80211_stop_queue(mvm->hw, q);
 893         }
 894 }
 895
 896 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
 897                              const struct iwl_device_cmd *cmd)
 898 {
 899         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 900
 901         /*
 902          * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
 903          * commands that need to block the Tx queues.
 904          */
 905         iwl_trans_block_txq_ptrs(mvm->trans, false);
 906 }
 907
 908 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
 909 {
 910         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 911         unsigned long mq;
 912         int q;
 913
 914         spin_lock_bh(&mvm->queue_info_lock);
 915         mq = mvm->queue_info[queue].hw_queue_to_mac80211;
 916         spin_unlock_bh(&mvm->queue_info_lock);
 917
 918         if (WARN_ON_ONCE(!mq))
 919                 return;
 920
 921         for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
 922                 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[q]) > 0) {
 923                         IWL_DEBUG_TX_QUEUES(mvm,
 924                                             "queue %d (mac80211 %d) still stopped\n",
 925                                             queue, q);
 926                         continue;
 927                 }
 928
 929                 ieee80211_wake_queue(mvm->hw, q);
 930         }
 931 }
 932
 933 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
 934 {
 935         if (state)
 936                 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
 937         else
 938                 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
 939
 940         wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
 941 }
 942
 943 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
 944 {
 945         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 946         bool calibrating = ACCESS_ONCE(mvm->calibrating);
 947
 948         if (state)
 949                 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
 950         else
 951                 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
 952
 953         wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
 954
 955         /* iwl_run_init_mvm_ucode is waiting for results, abort it */
 956         if (calibrating)
 957                 iwl_abort_notification_waits(&mvm->notif_wait);
 958
 959         /*
 960          * Stop the device if we run OPERATIONAL firmware or if we are in the
 961          * middle of the calibrations.
 962          */
 963         return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating);
 964 }
 965
 966 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
 967 {
 968         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 969         struct ieee80211_tx_info *info;
 970
 971         info = IEEE80211_SKB_CB(skb);
 972         iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
 973         ieee80211_free_txskb(mvm->hw, skb);
 974 }
 975
 976 struct iwl_mvm_reprobe {
 977         struct device *dev;
 978         struct work_struct work;
 979 };
 980
 981 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
 982 {
 983         struct iwl_mvm_reprobe *reprobe;
 984
 985         reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
 986         if (device_reprobe(reprobe->dev))
 987                 dev_err(reprobe->dev, "reprobe failed!\n");
 988         kfree(reprobe);
 989         module_put(THIS_MODULE);
 990 }
 991
 992 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
 993 {
 994         struct iwl_mvm *mvm =
 995                 container_of(work, struct iwl_mvm, fw_dump_wk.work);
 996
 997         if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT))
 998                 return;
 999
1000         mutex_lock(&mvm->mutex);
1001
1002         /* stop recording */
1003         if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
1004                 iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100);
1005         } else {
1006                 iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0);
1007                 /* wait before we collect the data till the DBGC stop */
1008                 udelay(100);
1009         }
1010
1011         iwl_mvm_fw_error_dump(mvm);
1012
1013         /* start recording again if the firmware is not crashed */
1014         WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) &&
1015                      mvm->fw->dbg_dest_tlv &&
1016                      iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf));
1017
1018         mutex_unlock(&mvm->mutex);
1019
1020         iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
1021 }
1022
1023 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1024 {
1025         iwl_abort_notification_waits(&mvm->notif_wait);
1026
1027         /*
1028          * This is a bit racy, but worst case we tell mac80211 about
1029          * a stopped/aborted scan when that was already done which
1030          * is not a problem. It is necessary to abort any os scan
1031          * here because mac80211 requires having the scan cleared
1032          * before restarting.
1033          * We'll reset the scan_status to NONE in restart cleanup in
1034          * the next start() call from mac80211. If restart isn't called
1035          * (no fw restart) scan status will stay busy.
1036          */
1037         iwl_mvm_report_scan_aborted(mvm);
1038
1039         /*
1040          * If we're restarting already, don't cycle restarts.
1041          * If INIT fw asserted, it will likely fail again.
1042          * If WoWLAN fw asserted, don't restart either, mac80211
1043          * can't recover this since we're already half suspended.
1044          */
1045         if (!mvm->restart_fw && fw_error) {
1046                 iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert,
1047                                             NULL);
1048         } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1049                                     &mvm->status)) {
1050                 struct iwl_mvm_reprobe *reprobe;
1051
1052                 IWL_ERR(mvm,
1053                         "Firmware error during reconfiguration - reprobe!\n");
1054
1055                 /*
1056                  * get a module reference to avoid doing this while unloading
1057                  * anyway and to avoid scheduling a work with code that's
1058                  * being removed.
1059                  */
1060                 if (!try_module_get(THIS_MODULE)) {
1061                         IWL_ERR(mvm, "Module is being unloaded - abort\n");
1062                         return;
1063                 }
1064
1065                 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1066                 if (!reprobe) {
1067                         module_put(THIS_MODULE);
1068                         return;
1069                 }
1070                 reprobe->dev = mvm->trans->dev;
1071                 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1072                 schedule_work(&reprobe->work);
1073         } else if (mvm->cur_ucode == IWL_UCODE_REGULAR) {
1074                 /* don't let the transport/FW power down */
1075                 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1076
1077                 if (fw_error && mvm->restart_fw > 0)
1078                         mvm->restart_fw--;
1079                 ieee80211_restart_hw(mvm->hw);
1080         }
1081 }
1082
1083 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
1084 {
1085         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1086
1087         iwl_mvm_dump_nic_error_log(mvm);
1088
1089         iwl_mvm_nic_restart(mvm, true);
1090 }
1091
1092 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1093 {
1094         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1095
1096         WARN_ON(1);
1097         iwl_mvm_nic_restart(mvm, true);
1098 }
1099
1100 struct iwl_d0i3_iter_data {
1101         struct iwl_mvm *mvm;
1102         struct ieee80211_vif *connected_vif;
1103         u8 ap_sta_id;
1104         u8 vif_count;
1105         u8 offloading_tid;
1106         bool disable_offloading;
1107 };
1108
1109 static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
1110                                         struct ieee80211_vif *vif,
1111                                         struct iwl_d0i3_iter_data *iter_data)
1112 {
1113         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1114         struct ieee80211_sta *ap_sta;
1115         struct iwl_mvm_sta *mvmsta;
1116         u32 available_tids = 0;
1117         u8 tid;
1118
1119         if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
1120                     mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
1121                 return false;
1122
1123         ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]);
1124         if (IS_ERR_OR_NULL(ap_sta))
1125                 return false;
1126
1127         mvmsta = iwl_mvm_sta_from_mac80211(ap_sta);
1128         spin_lock_bh(&mvmsta->lock);
1129         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1130                 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
1131
1132                 /*
1133                  * in case of pending tx packets, don't use this tid
1134                  * for offloading in order to prevent reuse of the same
1135                  * qos seq counters.
1136                  */
1137                 if (iwl_mvm_tid_queued(tid_data))
1138                         continue;
1139
1140                 if (tid_data->state != IWL_AGG_OFF)
1141                         continue;
1142
1143                 available_tids |= BIT(tid);
1144         }
1145         spin_unlock_bh(&mvmsta->lock);
1146
1147         /*
1148          * disallow protocol offloading if we have no available tid
1149          * (with no pending frames and no active aggregation,
1150          * as we don't handle "holes" properly - the scheduler needs the
1151          * frame's seq number and TFD index to match)
1152          */
1153         if (!available_tids)
1154                 return true;
1155
1156         /* for simplicity, just use the first available tid */
1157         iter_data->offloading_tid = ffs(available_tids) - 1;
1158         return false;
1159 }
1160
1161 static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
1162                                         struct ieee80211_vif *vif)
1163 {
1164         struct iwl_d0i3_iter_data *data = _data;
1165         struct iwl_mvm *mvm = data->mvm;
1166         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1167         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1168
1169         IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
1170         if (vif->type != NL80211_IFTYPE_STATION ||
1171             !vif->bss_conf.assoc)
1172                 return;
1173
1174         /*
1175          * in case of pending tx packets or active aggregations,
1176          * avoid offloading features in order to prevent reuse of
1177          * the same qos seq counters.
1178          */
1179         if (iwl_mvm_disallow_offloading(mvm, vif, data))
1180                 data->disable_offloading = true;
1181
1182         iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
1183         iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading,
1184                                    false, flags);
1185
1186         /*
1187          * on init/association, mvm already configures POWER_TABLE_CMD
1188          * and REPLY_MCAST_FILTER_CMD, so currently don't
1189          * reconfigure them (we might want to use different
1190          * params later on, though).
1191          */
1192         data->ap_sta_id = mvmvif->ap_sta_id;
1193         data->vif_count++;
1194
1195         /*
1196          * no new commands can be sent at this stage, so it's safe
1197          * to save the vif pointer during d0i3 entrance.
1198          */
1199         data->connected_vif = vif;
1200 }
1201
1202 static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
1203                                     struct iwl_wowlan_config_cmd *cmd,
1204                                     struct iwl_d0i3_iter_data *iter_data)
1205 {
1206         struct ieee80211_sta *ap_sta;
1207         struct iwl_mvm_sta *mvm_ap_sta;
1208
1209         if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
1210                 return;
1211
1212         rcu_read_lock();
1213
1214         ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
1215         if (IS_ERR_OR_NULL(ap_sta))
1216                 goto out;
1217
1218         mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
1219         cmd->is_11n_connection = ap_sta->ht_cap.ht_supported;
1220         cmd->offloading_tid = iter_data->offloading_tid;
1221         cmd->flags = ENABLE_L3_FILTERING | ENABLE_NBNS_FILTERING |
1222                 ENABLE_DHCP_FILTERING | ENABLE_STORE_BEACON;
1223         /*
1224          * The d0i3 uCode takes care of the nonqos counters,
1225          * so configure only the qos seq ones.
1226          */
1227         iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd);
1228 out:
1229         rcu_read_unlock();
1230 }
1231
1232 int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
1233 {
1234         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1235         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1236         int ret;
1237         struct iwl_d0i3_iter_data d0i3_iter_data = {
1238                 .mvm = mvm,
1239         };
1240         struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1241                 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
1242                                              IWL_WOWLAN_WAKEUP_BEACON_MISS |
1243                                              IWL_WOWLAN_WAKEUP_LINK_CHANGE),
1244         };
1245         struct iwl_d3_manager_config d3_cfg_cmd = {
1246                 .min_sleep_time = cpu_to_le32(1000),
1247                 .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR),
1248         };
1249
1250         IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
1251
1252         if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1253                 return -EINVAL;
1254
1255         set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1256
1257         /*
1258          * iwl_mvm_ref_sync takes a reference before checking the flag.
1259          * so by checking there is no held reference we prevent a state
1260          * in which iwl_mvm_ref_sync continues successfully while we
1261          * configure the firmware to enter d0i3
1262          */
1263         if (iwl_mvm_ref_taken(mvm)) {
1264                 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n");
1265                 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1266                 wake_up(&mvm->d0i3_exit_waitq);
1267                 return 1;
1268         }
1269
1270         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1271                                                    IEEE80211_IFACE_ITER_NORMAL,
1272                                                    iwl_mvm_enter_d0i3_iterator,
1273                                                    &d0i3_iter_data);
1274         if (d0i3_iter_data.vif_count == 1) {
1275                 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
1276                 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
1277         } else {
1278                 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
1279                 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1280                 mvm->d0i3_offloading = false;
1281         }
1282
1283         /* make sure we have no running tx while configuring the seqno */
1284         synchronize_net();
1285
1286         /* Flush the hw queues, in case something got queued during entry */
1287         ret = iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm), flags);
1288         if (ret)
1289                 return ret;
1290
1291         /* configure wowlan configuration only if needed */
1292         if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) {
1293                 /* wake on beacons only if beacon storing isn't supported */
1294                 if (!fw_has_capa(&mvm->fw->ucode_capa,
1295                                  IWL_UCODE_TLV_CAPA_BEACON_STORING))
1296                         wowlan_config_cmd.wakeup_filter |=
1297                                 cpu_to_le32(IWL_WOWLAN_WAKEUP_BCN_FILTERING);
1298
1299                 iwl_mvm_wowlan_config_key_params(mvm,
1300                                                  d0i3_iter_data.connected_vif,
1301                                                  true, flags);
1302
1303                 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd,
1304                                         &d0i3_iter_data);
1305
1306                 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
1307                                            sizeof(wowlan_config_cmd),
1308                                            &wowlan_config_cmd);
1309                 if (ret)
1310                         return ret;
1311         }
1312
1313         return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
1314                                     flags | CMD_MAKE_TRANS_IDLE,
1315                                     sizeof(d3_cfg_cmd), &d3_cfg_cmd);
1316 }
1317
1318 static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
1319                                        struct ieee80211_vif *vif)
1320 {
1321         struct iwl_mvm *mvm = _data;
1322         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
1323
1324         IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
1325         if (vif->type != NL80211_IFTYPE_STATION ||
1326             !vif->bss_conf.assoc)
1327                 return;
1328
1329         iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
1330 }
1331
1332 struct iwl_mvm_d0i3_exit_work_iter_data {
1333         struct iwl_mvm *mvm;
1334         struct iwl_wowlan_status *status;
1335         u32 wakeup_reasons;
1336 };
1337
1338 static void iwl_mvm_d0i3_exit_work_iter(void *_data, u8 *mac,
1339                                         struct ieee80211_vif *vif)
1340 {
1341         struct iwl_mvm_d0i3_exit_work_iter_data *data = _data;
1342         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1343         u32 reasons = data->wakeup_reasons;
1344
1345         /* consider only the relevant station interface */
1346         if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1347             data->mvm->d0i3_ap_sta_id != mvmvif->ap_sta_id)
1348                 return;
1349
1350         if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)
1351                 iwl_mvm_connection_loss(data->mvm, vif, "D0i3");
1352         else if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON)
1353                 ieee80211_beacon_loss(vif);
1354         else
1355                 iwl_mvm_d0i3_update_keys(data->mvm, vif, data->status);
1356 }
1357
1358 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
1359 {
1360         struct ieee80211_sta *sta = NULL;
1361         struct iwl_mvm_sta *mvm_ap_sta;
1362         int i;
1363         bool wake_queues = false;
1364
1365         lockdep_assert_held(&mvm->mutex);
1366
1367         spin_lock_bh(&mvm->d0i3_tx_lock);
1368
1369         if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
1370                 goto out;
1371
1372         IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
1373
1374         /* get the sta in order to update seq numbers and re-enqueue skbs */
1375         sta = rcu_dereference_protected(
1376                         mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
1377                         lockdep_is_held(&mvm->mutex));
1378
1379         if (IS_ERR_OR_NULL(sta)) {
1380                 sta = NULL;
1381                 goto out;
1382         }
1383
1384         if (mvm->d0i3_offloading && qos_seq) {
1385                 /* update qos seq numbers if offloading was enabled */
1386                 mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta);
1387                 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1388                         u16 seq = le16_to_cpu(qos_seq[i]);
1389                         /* firmware stores last-used one, we store next one */
1390                         seq += 0x10;
1391                         mvm_ap_sta->tid_data[i].seq_number = seq;
1392                 }
1393         }
1394 out:
1395         /* re-enqueue (or drop) all packets */
1396         while (!skb_queue_empty(&mvm->d0i3_tx)) {
1397                 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
1398
1399                 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
1400                         ieee80211_free_txskb(mvm->hw, skb);
1401
1402                 /* if the skb_queue is not empty, we need to wake queues */
1403                 wake_queues = true;
1404         }
1405         clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1406         wake_up(&mvm->d0i3_exit_waitq);
1407         mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1408         if (wake_queues)
1409                 ieee80211_wake_queues(mvm->hw);
1410
1411         spin_unlock_bh(&mvm->d0i3_tx_lock);
1412 }
1413
1414 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
1415 {
1416         struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
1417         struct iwl_host_cmd get_status_cmd = {
1418                 .id = WOWLAN_GET_STATUSES,
1419                 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
1420         };
1421         struct iwl_mvm_d0i3_exit_work_iter_data iter_data = {
1422                 .mvm = mvm,
1423         };
1424
1425         struct iwl_wowlan_status *status;
1426         int ret;
1427         u32 wakeup_reasons = 0;
1428         __le16 *qos_seq = NULL;
1429
1430         mutex_lock(&mvm->mutex);
1431         ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
1432         if (ret)
1433                 goto out;
1434
1435         if (!get_status_cmd.resp_pkt)
1436                 goto out;
1437
1438         status = (void *)get_status_cmd.resp_pkt->data;
1439         wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
1440         qos_seq = status->qos_seq_ctr;
1441
1442         IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
1443
1444         iter_data.wakeup_reasons = wakeup_reasons;
1445         iter_data.status = status;
1446         ieee80211_iterate_active_interfaces(mvm->hw,
1447                                             IEEE80211_IFACE_ITER_NORMAL,
1448                                             iwl_mvm_d0i3_exit_work_iter,
1449                                             &iter_data);
1450 out:
1451         iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
1452
1453         IWL_DEBUG_INFO(mvm, "d0i3 exit completed (wakeup reasons: 0x%x)\n",
1454                        wakeup_reasons);
1455
1456         /* qos_seq might point inside resp_pkt, so free it only now */
1457         if (get_status_cmd.resp_pkt)
1458                 iwl_free_resp(&get_status_cmd);
1459
1460         /* the FW might have updated the regdomain */
1461         iwl_mvm_update_changed_regdom(mvm);
1462
1463         iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
1464         mutex_unlock(&mvm->mutex);
1465 }
1466
1467 int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
1468 {
1469         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
1470                     CMD_WAKE_UP_TRANS;
1471         int ret;
1472
1473         IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
1474
1475         if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1476                 return -EINVAL;
1477
1478         mutex_lock(&mvm->d0i3_suspend_mutex);
1479         if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
1480                 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
1481                 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
1482                 mutex_unlock(&mvm->d0i3_suspend_mutex);
1483                 return 0;
1484         }
1485         mutex_unlock(&mvm->d0i3_suspend_mutex);
1486
1487         ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
1488         if (ret)
1489                 goto out;
1490
1491         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1492                                                    IEEE80211_IFACE_ITER_NORMAL,
1493                                                    iwl_mvm_exit_d0i3_iterator,
1494                                                    mvm);
1495 out:
1496         schedule_work(&mvm->d0i3_exit_work);
1497         return ret;
1498 }
1499
1500 int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
1501 {
1502         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1503
1504         iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
1505         return _iwl_mvm_exit_d0i3(mvm);
1506 }
1507
1508 #define IWL_MVM_COMMON_OPS                                      \
1509         /* these could be differentiated */                     \
1510         .async_cb = iwl_mvm_async_cb,                           \
1511         .queue_full = iwl_mvm_stop_sw_queue,                    \
1512         .queue_not_full = iwl_mvm_wake_sw_queue,                \
1513         .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,              \
1514         .free_skb = iwl_mvm_free_skb,                           \
1515         .nic_error = iwl_mvm_nic_error,                         \
1516         .cmd_queue_full = iwl_mvm_cmd_queue_full,               \
1517         .nic_config = iwl_mvm_nic_config,                       \
1518         .enter_d0i3 = iwl_mvm_enter_d0i3,                       \
1519         .exit_d0i3 = iwl_mvm_exit_d0i3,                         \
1520         /* as we only register one, these MUST be common! */    \
1521         .start = iwl_op_mode_mvm_start,                         \
1522         .stop = iwl_op_mode_mvm_stop
1523
1524 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1525         IWL_MVM_COMMON_OPS,
1526         .rx = iwl_mvm_rx,
1527 };
1528
1529 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1530                               struct napi_struct *napi,
1531                               struct iwl_rx_cmd_buffer *rxb,
1532                               unsigned int queue)
1533 {
1534         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1535         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1536
1537         if (unlikely(pkt->hdr.cmd == FRAME_RELEASE))
1538                 iwl_mvm_rx_frame_release(mvm, rxb, queue);
1539         else
1540                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1541 }
1542
1543 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1544         IWL_MVM_COMMON_OPS,
1545         .rx = iwl_mvm_rx_mq,
1546         .rx_rss = iwl_mvm_rx_mq_rss,
1547 };