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.
  45  *  * Redistributions in binary form must reproduce the above copyright
  46  *    notice, this list of conditions and the following disclaimer in
  47  *    the documentation and/or other materials provided with the
  48  *    distribution.
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  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
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  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(BA_WINDOW_STATUS_NOTIFICATION_ID,
 240                    iwl_mvm_window_status_notif, false),
 241
 242         RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false),
 243         RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, true),
 244
 245         RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false),
 246
 247         RX_HANDLER(SCAN_ITERATION_COMPLETE,
 248                    iwl_mvm_rx_lmac_scan_iter_complete_notif, false),
 249         RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
 250                    iwl_mvm_rx_lmac_scan_complete_notif, true),
 251         RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found,
 252                    false),
 253         RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
 254                    true),
 255         RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
 256                    iwl_mvm_rx_umac_scan_iter_complete_notif, false),
 257
 258         RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
 259
 260         RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
 261                    false),
 262
 263         RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false),
 264         RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
 265                    iwl_mvm_power_uapsd_misbehaving_ap_notif, false),
 266         RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, true),
 267         RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
 268                        iwl_mvm_temp_notif, true),
 269         RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
 270                        iwl_mvm_ct_kill_notif, false),
 271
 272         RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
 273                    true),
 274         RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, false),
 275         RX_HANDLER(TOF_NOTIFICATION, iwl_mvm_tof_resp_handler, true),
 276         RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
 277                        iwl_mvm_rx_stored_beacon_notif, false),
 278
 279 };
 280 #undef RX_HANDLER
 281 #undef RX_HANDLER_GRP
 282
 283 /* Please keep this array *SORTED* by hex value.
 284  * Access is done through binary search
 285  */
 286 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
 287         HCMD_NAME(MVM_ALIVE),
 288         HCMD_NAME(REPLY_ERROR),
 289         HCMD_NAME(ECHO_CMD),
 290         HCMD_NAME(INIT_COMPLETE_NOTIF),
 291         HCMD_NAME(PHY_CONTEXT_CMD),
 292         HCMD_NAME(DBG_CFG),
 293         HCMD_NAME(ANTENNA_COUPLING_NOTIFICATION),
 294         HCMD_NAME(SCAN_CFG_CMD),
 295         HCMD_NAME(SCAN_REQ_UMAC),
 296         HCMD_NAME(SCAN_ABORT_UMAC),
 297         HCMD_NAME(SCAN_COMPLETE_UMAC),
 298         HCMD_NAME(TOF_CMD),
 299         HCMD_NAME(TOF_NOTIFICATION),
 300         HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
 301         HCMD_NAME(ADD_STA_KEY),
 302         HCMD_NAME(ADD_STA),
 303         HCMD_NAME(REMOVE_STA),
 304         HCMD_NAME(FW_GET_ITEM_CMD),
 305         HCMD_NAME(TX_CMD),
 306         HCMD_NAME(SCD_QUEUE_CFG),
 307         HCMD_NAME(TXPATH_FLUSH),
 308         HCMD_NAME(MGMT_MCAST_KEY),
 309         HCMD_NAME(WEP_KEY),
 310         HCMD_NAME(SHARED_MEM_CFG),
 311         HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
 312         HCMD_NAME(MAC_CONTEXT_CMD),
 313         HCMD_NAME(TIME_EVENT_CMD),
 314         HCMD_NAME(TIME_EVENT_NOTIFICATION),
 315         HCMD_NAME(BINDING_CONTEXT_CMD),
 316         HCMD_NAME(TIME_QUOTA_CMD),
 317         HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
 318         HCMD_NAME(LQ_CMD),
 319         HCMD_NAME(FW_PAGING_BLOCK_CMD),
 320         HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
 321         HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
 322         HCMD_NAME(HOT_SPOT_CMD),
 323         HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
 324         HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_CONFIG_CMD),
 325         HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_QUERY_CMD),
 326         HCMD_NAME(BT_COEX_UPDATE_SW_BOOST),
 327         HCMD_NAME(BT_COEX_UPDATE_CORUN_LUT),
 328         HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
 329         HCMD_NAME(BT_COEX_CI),
 330         HCMD_NAME(PHY_CONFIGURATION_CMD),
 331         HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
 332         HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
 333         HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
 334         HCMD_NAME(SCAN_OFFLOAD_CONFIG_CMD),
 335         HCMD_NAME(POWER_TABLE_CMD),
 336         HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
 337         HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
 338         HCMD_NAME(DC2DC_CONFIG_CMD),
 339         HCMD_NAME(NVM_ACCESS_CMD),
 340         HCMD_NAME(SET_CALIB_DEFAULT_CMD),
 341         HCMD_NAME(BEACON_NOTIFICATION),
 342         HCMD_NAME(BEACON_TEMPLATE_CMD),
 343         HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
 344         HCMD_NAME(BT_CONFIG),
 345         HCMD_NAME(STATISTICS_CMD),
 346         HCMD_NAME(STATISTICS_NOTIFICATION),
 347         HCMD_NAME(EOSP_NOTIFICATION),
 348         HCMD_NAME(REDUCE_TX_POWER_CMD),
 349         HCMD_NAME(CARD_STATE_CMD),
 350         HCMD_NAME(CARD_STATE_NOTIFICATION),
 351         HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
 352         HCMD_NAME(TDLS_CONFIG_CMD),
 353         HCMD_NAME(MAC_PM_POWER_TABLE),
 354         HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
 355         HCMD_NAME(MFUART_LOAD_NOTIFICATION),
 356         HCMD_NAME(RSS_CONFIG_CMD),
 357         HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
 358         HCMD_NAME(REPLY_RX_PHY_CMD),
 359         HCMD_NAME(REPLY_RX_MPDU_CMD),
 360         HCMD_NAME(BA_NOTIF),
 361         HCMD_NAME(MCC_UPDATE_CMD),
 362         HCMD_NAME(MCC_CHUB_UPDATE_CMD),
 363         HCMD_NAME(MARKER_CMD),
 364         HCMD_NAME(BT_COEX_PRIO_TABLE),
 365         HCMD_NAME(BT_COEX_PROT_ENV),
 366         HCMD_NAME(BT_PROFILE_NOTIFICATION),
 367         HCMD_NAME(BCAST_FILTER_CMD),
 368         HCMD_NAME(MCAST_FILTER_CMD),
 369         HCMD_NAME(REPLY_SF_CFG_CMD),
 370         HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
 371         HCMD_NAME(D3_CONFIG_CMD),
 372         HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
 373         HCMD_NAME(OFFLOADS_QUERY_CMD),
 374         HCMD_NAME(REMOTE_WAKE_CONFIG_CMD),
 375         HCMD_NAME(MATCH_FOUND_NOTIFICATION),
 376         HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER),
 377         HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
 378         HCMD_NAME(WOWLAN_PATTERNS),
 379         HCMD_NAME(WOWLAN_CONFIGURATION),
 380         HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
 381         HCMD_NAME(WOWLAN_TKIP_PARAM),
 382         HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
 383         HCMD_NAME(WOWLAN_GET_STATUSES),
 384         HCMD_NAME(WOWLAN_TX_POWER_PER_DB),
 385         HCMD_NAME(SCAN_ITERATION_COMPLETE),
 386         HCMD_NAME(D0I3_END_CMD),
 387         HCMD_NAME(LTR_CONFIG),
 388         HCMD_NAME(REPLY_DEBUG_CMD),
 389 };
 390
 391 /* Please keep this array *SORTED* by hex value.
 392  * Access is done through binary search
 393  */
 394 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
 395         HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
 396         HCMD_NAME(CTDP_CONFIG_CMD),
 397         HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
 398         HCMD_NAME(CT_KILL_NOTIFICATION),
 399         HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
 400 };
 401
 402 /* Please keep this array *SORTED* by hex value.
 403  * Access is done through binary search
 404  */
 405 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
 406         HCMD_NAME(UPDATE_MU_GROUPS_CMD),
 407         HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
 408         HCMD_NAME(RX_QUEUES_NOTIFICATION),
 409 };
 410
 411 /* Please keep this array *SORTED* by hex value.
 412  * Access is done through binary search
 413  */
 414 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
 415         HCMD_NAME(STORED_BEACON_NTF),
 416 };
 417
 418 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
 419         [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 420         [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 421         [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
 422         [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
 423         [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
 424 };
 425
 426 /* this forward declaration can avoid to export the function */
 427 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
 428 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk);
 429
 430 static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg)
 431 {
 432         const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs;
 433
 434         if (!pwr_tx_backoff)
 435                 return 0;
 436
 437         while (pwr_tx_backoff->pwr) {
 438                 if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr)
 439                         return pwr_tx_backoff->backoff;
 440
 441                 pwr_tx_backoff++;
 442         }
 443
 444         return 0;
 445 }
 446
 447 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work);
 448
 449 static struct iwl_op_mode *
 450 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 451                       const struct iwl_fw *fw, struct dentry *dbgfs_dir)
 452 {
 453         struct ieee80211_hw *hw;
 454         struct iwl_op_mode *op_mode;
 455         struct iwl_mvm *mvm;
 456         struct iwl_trans_config trans_cfg = {};
 457         static const u8 no_reclaim_cmds[] = {
 458                 TX_CMD,
 459         };
 460         int err, scan_size;
 461         u32 min_backoff;
 462
 463         /*
 464          * We use IWL_MVM_STATION_COUNT to check the validity of the station
 465          * index all over the driver - check that its value corresponds to the
 466          * array size.
 467          */
 468         BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);
 469
 470         /********************************
 471          * 1. Allocating and configuring HW data
 472          ********************************/
 473         hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
 474                                 sizeof(struct iwl_mvm),
 475                                 &iwl_mvm_hw_ops);
 476         if (!hw)
 477                 return NULL;
 478
 479         if (cfg->max_rx_agg_size)
 480                 hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
 481
 482         if (cfg->max_tx_agg_size)
 483                 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
 484
 485         op_mode = hw->priv;
 486
 487         mvm = IWL_OP_MODE_GET_MVM(op_mode);
 488         mvm->dev = trans->dev;
 489         mvm->trans = trans;
 490         mvm->cfg = cfg;
 491         mvm->fw = fw;
 492         mvm->hw = hw;
 493
 494         if (iwl_mvm_has_new_rx_api(mvm)) {
 495                 op_mode->ops = &iwl_mvm_ops_mq;
 496                 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_desc);
 497         } else {
 498                 op_mode->ops = &iwl_mvm_ops;
 499                 trans->rx_mpdu_cmd_hdr_size =
 500                         sizeof(struct iwl_rx_mpdu_res_start);
 501
 502                 if (WARN_ON(trans->num_rx_queues > 1))
 503                         goto out_free;
 504         }
 505
 506         mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;
 507
 508         mvm->aux_queue = 15;
 509         mvm->first_agg_queue = 16;
 510         mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
 511         if (mvm->cfg->base_params->num_of_queues == 16) {
 512                 mvm->aux_queue = 11;
 513                 mvm->first_agg_queue = 12;
 514         }
 515         mvm->sf_state = SF_UNINIT;
 516         mvm->cur_ucode = IWL_UCODE_INIT;
 517         mvm->drop_bcn_ap_mode = true;
 518
 519         mutex_init(&mvm->mutex);
 520         mutex_init(&mvm->d0i3_suspend_mutex);
 521         spin_lock_init(&mvm->async_handlers_lock);
 522         INIT_LIST_HEAD(&mvm->time_event_list);
 523         INIT_LIST_HEAD(&mvm->aux_roc_te_list);
 524         INIT_LIST_HEAD(&mvm->async_handlers_list);
 525         spin_lock_init(&mvm->time_event_lock);
 526         spin_lock_init(&mvm->queue_info_lock);
 527
 528         INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
 529         INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
 530         INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
 531         INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
 532         INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk);
 533         INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
 534
 535         spin_lock_init(&mvm->d0i3_tx_lock);
 536         spin_lock_init(&mvm->refs_lock);
 537         skb_queue_head_init(&mvm->d0i3_tx);
 538         init_waitqueue_head(&mvm->d0i3_exit_waitq);
 539
 540         SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
 541
 542         /*
 543          * Populate the state variables that the transport layer needs
 544          * to know about.
 545          */
 546         trans_cfg.op_mode = op_mode;
 547         trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
 548         trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
 549         switch (iwlwifi_mod_params.amsdu_size) {
 550         case IWL_AMSDU_4K:
 551                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
 552                 break;
 553         case IWL_AMSDU_8K:
 554                 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
 555                 break;
 556         case IWL_AMSDU_12K:
 557                 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
 558                 break;
 559         default:
 560                 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
 561                        iwlwifi_mod_params.amsdu_size);
 562                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
 563         }
 564         trans_cfg.wide_cmd_header = fw_has_api(&mvm->fw->ucode_capa,
 565                                                IWL_UCODE_TLV_API_WIDE_CMD_HDR);
 566
 567         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
 568                 trans_cfg.bc_table_dword = true;
 569
 570         trans_cfg.command_groups = iwl_mvm_groups;
 571         trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
 572
 573         trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
 574         trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
 575         trans_cfg.scd_set_active = true;
 576
 577         trans_cfg.sdio_adma_addr = fw->sdio_adma_addr;
 578         trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD;
 579
 580         /* Set a short watchdog for the command queue */
 581         trans_cfg.cmd_q_wdg_timeout =
 582                 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
 583
 584         snprintf(mvm->hw->wiphy->fw_version,
 585                  sizeof(mvm->hw->wiphy->fw_version),
 586                  "%s", fw->fw_version);
 587
 588         /* Configure transport layer */
 589         iwl_trans_configure(mvm->trans, &trans_cfg);
 590
 591         trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
 592         trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv;
 593         trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num;
 594         memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv,
 595                sizeof(trans->dbg_conf_tlv));
 596         trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv;
 597
 598         /* set up notification wait support */
 599         iwl_notification_wait_init(&mvm->notif_wait);
 600
 601         /* Init phy db */
 602         mvm->phy_db = iwl_phy_db_init(trans);
 603         if (!mvm->phy_db) {
 604                 IWL_ERR(mvm, "Cannot init phy_db\n");
 605                 goto out_free;
 606         }
 607
 608         IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
 609                  mvm->cfg->name, mvm->trans->hw_rev);
 610
 611         min_backoff = calc_min_backoff(trans, cfg);
 612         iwl_mvm_thermal_initialize(mvm, min_backoff);
 613
 614         if (iwlwifi_mod_params.nvm_file)
 615                 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
 616         else
 617                 IWL_DEBUG_EEPROM(mvm->trans->dev,
 618                                  "working without external nvm file\n");
 619
 620         if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name,
 621                  "not allowing power-up and not having nvm_file\n"))
 622                 goto out_free;
 623
 624         /*
 625          * Even if nvm exists in the nvm_file driver should read again the nvm
 626          * from the nic because there might be entries that exist in the OTP
 627          * and not in the file.
 628          * for nics with no_power_up_nic_in_init: rely completley on nvm_file
 629          */
 630         if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) {
 631                 err = iwl_nvm_init(mvm, false);
 632                 if (err)
 633                         goto out_free;
 634         } else {
 635                 err = iwl_trans_start_hw(mvm->trans);
 636                 if (err)
 637                         goto out_free;
 638
 639                 mutex_lock(&mvm->mutex);
 640                 iwl_mvm_ref(mvm, IWL_MVM_REF_INIT_UCODE);
 641                 err = iwl_run_init_mvm_ucode(mvm, true);
 642                 if (!err || !iwlmvm_mod_params.init_dbg)
 643                         iwl_trans_stop_device(trans);
 644                 iwl_mvm_unref(mvm, IWL_MVM_REF_INIT_UCODE);
 645                 mutex_unlock(&mvm->mutex);
 646                 /* returns 0 if successful, 1 if success but in rfkill */
 647                 if (err < 0 && !iwlmvm_mod_params.init_dbg) {
 648                         IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
 649                         goto out_free;
 650                 }
 651         }
 652
 653         scan_size = iwl_mvm_scan_size(mvm);
 654
 655         mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
 656         if (!mvm->scan_cmd)
 657                 goto out_free;
 658
 659         /* Set EBS as successful as long as not stated otherwise by the FW. */
 660         mvm->last_ebs_successful = true;
 661
 662         err = iwl_mvm_mac_setup_register(mvm);
 663         if (err)
 664                 goto out_free;
 665
 666         err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
 667         if (err)
 668                 goto out_unregister;
 669
 670         memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
 671
 672         /* rpm starts with a taken reference, we can release it now */
 673         iwl_trans_unref(mvm->trans);
 674
 675         iwl_mvm_tof_init(mvm);
 676
 677         /* init RSS hash key */
 678         get_random_bytes(mvm->secret_key, sizeof(mvm->secret_key));
 679
 680         return op_mode;
 681
 682  out_unregister:
 683         ieee80211_unregister_hw(mvm->hw);
 684         iwl_mvm_leds_exit(mvm);
 685         iwl_mvm_thermal_exit(mvm);
 686  out_free:
 687         flush_delayed_work(&mvm->fw_dump_wk);
 688         iwl_phy_db_free(mvm->phy_db);
 689         kfree(mvm->scan_cmd);
 690         if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name)
 691                 iwl_trans_op_mode_leave(trans);
 692         ieee80211_free_hw(mvm->hw);
 693         return NULL;
 694 }
 695
 696 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
 697 {
 698         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 699         int i;
 700
 701         iwl_mvm_leds_exit(mvm);
 702
 703         iwl_mvm_thermal_exit(mvm);
 704
 705         ieee80211_unregister_hw(mvm->hw);
 706
 707         kfree(mvm->scan_cmd);
 708         kfree(mvm->mcast_filter_cmd);
 709         mvm->mcast_filter_cmd = NULL;
 710
 711 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
 712         kfree(mvm->d3_resume_sram);
 713 #endif
 714
 715         iwl_trans_op_mode_leave(mvm->trans);
 716
 717         iwl_phy_db_free(mvm->phy_db);
 718         mvm->phy_db = NULL;
 719
 720         iwl_free_nvm_data(mvm->nvm_data);
 721         for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
 722                 kfree(mvm->nvm_sections[i].data);
 723
 724         iwl_mvm_tof_clean(mvm);
 725
 726         ieee80211_free_hw(mvm->hw);
 727 }
 728
 729 struct iwl_async_handler_entry {
 730         struct list_head list;
 731         struct iwl_rx_cmd_buffer rxb;
 732         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
 733 };
 734
 735 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
 736 {
 737         struct iwl_async_handler_entry *entry, *tmp;
 738
 739         spin_lock_bh(&mvm->async_handlers_lock);
 740         list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
 741                 iwl_free_rxb(&entry->rxb);
 742                 list_del(&entry->list);
 743                 kfree(entry);
 744         }
 745         spin_unlock_bh(&mvm->async_handlers_lock);
 746 }
 747
 748 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
 749 {
 750         struct iwl_mvm *mvm =
 751                 container_of(wk, struct iwl_mvm, async_handlers_wk);
 752         struct iwl_async_handler_entry *entry, *tmp;
 753         struct list_head local_list;
 754
 755         INIT_LIST_HEAD(&local_list);
 756
 757         /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
 758         mutex_lock(&mvm->mutex);
 759
 760         /*
 761          * Sync with Rx path with a lock. Remove all the entries from this list,
 762          * add them to a local one (lock free), and then handle them.
 763          */
 764         spin_lock_bh(&mvm->async_handlers_lock);
 765         list_splice_init(&mvm->async_handlers_list, &local_list);
 766         spin_unlock_bh(&mvm->async_handlers_lock);
 767
 768         list_for_each_entry_safe(entry, tmp, &local_list, list) {
 769                 entry->fn(mvm, &entry->rxb);
 770                 iwl_free_rxb(&entry->rxb);
 771                 list_del(&entry->list);
 772                 kfree(entry);
 773         }
 774         mutex_unlock(&mvm->mutex);
 775 }
 776
 777 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
 778                                             struct iwl_rx_packet *pkt)
 779 {
 780         struct iwl_fw_dbg_trigger_tlv *trig;
 781         struct iwl_fw_dbg_trigger_cmd *cmds_trig;
 782         int i;
 783
 784         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF))
 785                 return;
 786
 787         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF);
 788         cmds_trig = (void *)trig->data;
 789
 790         if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig))
 791                 return;
 792
 793         for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
 794                 /* don't collect on CMD 0 */
 795                 if (!cmds_trig->cmds[i].cmd_id)
 796                         break;
 797
 798                 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
 799                     cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
 800                         continue;
 801
 802                 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
 803                                             "CMD 0x%02x.%02x received",
 804                                             pkt->hdr.group_id, pkt->hdr.cmd);
 805                 break;
 806         }
 807 }
 808
 809 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
 810                               struct iwl_rx_cmd_buffer *rxb,
 811                               struct iwl_rx_packet *pkt)
 812 {
 813         int i;
 814
 815         iwl_mvm_rx_check_trigger(mvm, pkt);
 816
 817         /*
 818          * Do the notification wait before RX handlers so
 819          * even if the RX handler consumes the RXB we have
 820          * access to it in the notification wait entry.
 821          */
 822         iwl_notification_wait_notify(&mvm->notif_wait, pkt);
 823
 824         for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
 825                 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
 826                 struct iwl_async_handler_entry *entry;
 827
 828                 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
 829                         continue;
 830
 831                 if (!rx_h->async) {
 832                         rx_h->fn(mvm, rxb);
 833                         return;
 834                 }
 835
 836                 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
 837                 /* we can't do much... */
 838                 if (!entry)
 839                         return;
 840
 841                 entry->rxb._page = rxb_steal_page(rxb);
 842                 entry->rxb._offset = rxb->_offset;
 843                 entry->rxb._rx_page_order = rxb->_rx_page_order;
 844                 entry->fn = rx_h->fn;
 845                 spin_lock(&mvm->async_handlers_lock);
 846                 list_add_tail(&entry->list, &mvm->async_handlers_list);
 847                 spin_unlock(&mvm->async_handlers_lock);
 848                 schedule_work(&mvm->async_handlers_wk);
 849                 break;
 850         }
 851 }
 852
 853 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
 854                        struct napi_struct *napi,
 855                        struct iwl_rx_cmd_buffer *rxb)
 856 {
 857         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 858         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 859
 860         if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD))
 861                 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
 862         else if (pkt->hdr.cmd == FRAME_RELEASE)
 863                 iwl_mvm_rx_frame_release(mvm, rxb, 0);
 864         else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD)
 865                 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
 866         else
 867                 iwl_mvm_rx_common(mvm, rxb, pkt);
 868 }
 869
 870 static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
 871                           struct napi_struct *napi,
 872                           struct iwl_rx_cmd_buffer *rxb)
 873 {
 874         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 875         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 876
 877         if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD))
 878                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
 879         else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD)
 880                 iwl_mvm_rx_phy_cmd_mq(mvm, rxb);
 881         else if (unlikely(pkt->hdr.group_id == DATA_PATH_GROUP &&
 882                           pkt->hdr.cmd == RX_QUEUES_NOTIFICATION))
 883                 iwl_mvm_rx_queue_notif(mvm, rxb, 0);
 884         else
 885                 iwl_mvm_rx_common(mvm, rxb, pkt);
 886 }
 887
 888 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
 889 {
 890         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 891         unsigned long mq;
 892         int q;
 893
 894         spin_lock_bh(&mvm->queue_info_lock);
 895         mq = mvm->queue_info[queue].hw_queue_to_mac80211;
 896         spin_unlock_bh(&mvm->queue_info_lock);
 897
 898         if (WARN_ON_ONCE(!mq))
 899                 return;
 900
 901         for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
 902                 if (atomic_inc_return(&mvm->mac80211_queue_stop_count[q]) > 1) {
 903                         IWL_DEBUG_TX_QUEUES(mvm,
 904                                             "queue %d (mac80211 %d) already stopped\n",
 905                                             queue, q);
 906                         continue;
 907                 }
 908
 909                 ieee80211_stop_queue(mvm->hw, q);
 910         }
 911 }
 912
 913 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
 914                              const struct iwl_device_cmd *cmd)
 915 {
 916         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 917
 918         /*
 919          * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
 920          * commands that need to block the Tx queues.
 921          */
 922         iwl_trans_block_txq_ptrs(mvm->trans, false);
 923 }
 924
 925 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
 926 {
 927         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 928         unsigned long mq;
 929         int q;
 930
 931         spin_lock_bh(&mvm->queue_info_lock);
 932         mq = mvm->queue_info[queue].hw_queue_to_mac80211;
 933         spin_unlock_bh(&mvm->queue_info_lock);
 934
 935         if (WARN_ON_ONCE(!mq))
 936                 return;
 937
 938         for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
 939                 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[q]) > 0) {
 940                         IWL_DEBUG_TX_QUEUES(mvm,
 941                                             "queue %d (mac80211 %d) still stopped\n",
 942                                             queue, q);
 943                         continue;
 944                 }
 945
 946                 ieee80211_wake_queue(mvm->hw, q);
 947         }
 948 }
 949
 950 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
 951 {
 952         if (state)
 953                 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
 954         else
 955                 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
 956
 957         wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
 958 }
 959
 960 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
 961 {
 962         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 963         bool calibrating = ACCESS_ONCE(mvm->calibrating);
 964
 965         if (state)
 966                 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
 967         else
 968                 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
 969
 970         wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
 971
 972         /* iwl_run_init_mvm_ucode is waiting for results, abort it */
 973         if (calibrating)
 974                 iwl_abort_notification_waits(&mvm->notif_wait);
 975
 976         /*
 977          * Stop the device if we run OPERATIONAL firmware or if we are in the
 978          * middle of the calibrations.
 979          */
 980         return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating);
 981 }
 982
 983 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
 984 {
 985         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 986         struct ieee80211_tx_info *info;
 987
 988         info = IEEE80211_SKB_CB(skb);
 989         iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
 990         ieee80211_free_txskb(mvm->hw, skb);
 991 }
 992
 993 struct iwl_mvm_reprobe {
 994         struct device *dev;
 995         struct work_struct work;
 996 };
 997
 998 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
 999 {
1000         struct iwl_mvm_reprobe *reprobe;
1001
1002         reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1003         if (device_reprobe(reprobe->dev))
1004                 dev_err(reprobe->dev, "reprobe failed!\n");
1005         kfree(reprobe);
1006         module_put(THIS_MODULE);
1007 }
1008
1009 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
1010 {
1011         struct iwl_mvm *mvm =
1012                 container_of(work, struct iwl_mvm, fw_dump_wk.work);
1013
1014         if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT))
1015                 return;
1016
1017         mutex_lock(&mvm->mutex);
1018
1019         /* stop recording */
1020         if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
1021                 iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100);
1022         } else {
1023                 iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0);
1024                 /* wait before we collect the data till the DBGC stop */
1025                 udelay(100);
1026         }
1027
1028         iwl_mvm_fw_error_dump(mvm);
1029
1030         /* start recording again if the firmware is not crashed */
1031         WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) &&
1032                      mvm->fw->dbg_dest_tlv &&
1033                      iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf));
1034
1035         mutex_unlock(&mvm->mutex);
1036
1037         iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
1038 }
1039
1040 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1041 {
1042         iwl_abort_notification_waits(&mvm->notif_wait);
1043
1044         /*
1045          * This is a bit racy, but worst case we tell mac80211 about
1046          * a stopped/aborted scan when that was already done which
1047          * is not a problem. It is necessary to abort any os scan
1048          * here because mac80211 requires having the scan cleared
1049          * before restarting.
1050          * We'll reset the scan_status to NONE in restart cleanup in
1051          * the next start() call from mac80211. If restart isn't called
1052          * (no fw restart) scan status will stay busy.
1053          */
1054         iwl_mvm_report_scan_aborted(mvm);
1055
1056         /*
1057          * If we're restarting already, don't cycle restarts.
1058          * If INIT fw asserted, it will likely fail again.
1059          * If WoWLAN fw asserted, don't restart either, mac80211
1060          * can't recover this since we're already half suspended.
1061          */
1062         if (!mvm->restart_fw && fw_error) {
1063                 iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert,
1064                                             NULL);
1065         } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1066                                     &mvm->status)) {
1067                 struct iwl_mvm_reprobe *reprobe;
1068
1069                 IWL_ERR(mvm,
1070                         "Firmware error during reconfiguration - reprobe!\n");
1071
1072                 /*
1073                  * get a module reference to avoid doing this while unloading
1074                  * anyway and to avoid scheduling a work with code that's
1075                  * being removed.
1076                  */
1077                 if (!try_module_get(THIS_MODULE)) {
1078                         IWL_ERR(mvm, "Module is being unloaded - abort\n");
1079                         return;
1080                 }
1081
1082                 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1083                 if (!reprobe) {
1084                         module_put(THIS_MODULE);
1085                         return;
1086                 }
1087                 reprobe->dev = mvm->trans->dev;
1088                 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1089                 schedule_work(&reprobe->work);
1090         } else if (mvm->cur_ucode == IWL_UCODE_REGULAR) {
1091                 /* don't let the transport/FW power down */
1092                 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1093
1094                 if (fw_error && mvm->restart_fw > 0)
1095                         mvm->restart_fw--;
1096                 ieee80211_restart_hw(mvm->hw);
1097         }
1098 }
1099
1100 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
1101 {
1102         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1103
1104         iwl_mvm_dump_nic_error_log(mvm);
1105
1106         iwl_mvm_nic_restart(mvm, true);
1107 }
1108
1109 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1110 {
1111         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1112
1113         WARN_ON(1);
1114         iwl_mvm_nic_restart(mvm, true);
1115 }
1116
1117 struct iwl_d0i3_iter_data {
1118         struct iwl_mvm *mvm;
1119         struct ieee80211_vif *connected_vif;
1120         u8 ap_sta_id;
1121         u8 vif_count;
1122         u8 offloading_tid;
1123         bool disable_offloading;
1124 };
1125
1126 static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
1127                                         struct ieee80211_vif *vif,
1128                                         struct iwl_d0i3_iter_data *iter_data)
1129 {
1130         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1131         struct ieee80211_sta *ap_sta;
1132         struct iwl_mvm_sta *mvmsta;
1133         u32 available_tids = 0;
1134         u8 tid;
1135
1136         if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
1137                     mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
1138                 return false;
1139
1140         ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]);
1141         if (IS_ERR_OR_NULL(ap_sta))
1142                 return false;
1143
1144         mvmsta = iwl_mvm_sta_from_mac80211(ap_sta);
1145         spin_lock_bh(&mvmsta->lock);
1146         for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1147                 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
1148
1149                 /*
1150                  * in case of pending tx packets, don't use this tid
1151                  * for offloading in order to prevent reuse of the same
1152                  * qos seq counters.
1153                  */
1154                 if (iwl_mvm_tid_queued(tid_data))
1155                         continue;
1156
1157                 if (tid_data->state != IWL_AGG_OFF)
1158                         continue;
1159
1160                 available_tids |= BIT(tid);
1161         }
1162         spin_unlock_bh(&mvmsta->lock);
1163
1164         /*
1165          * disallow protocol offloading if we have no available tid
1166          * (with no pending frames and no active aggregation,
1167          * as we don't handle "holes" properly - the scheduler needs the
1168          * frame's seq number and TFD index to match)
1169          */
1170         if (!available_tids)
1171                 return true;
1172
1173         /* for simplicity, just use the first available tid */
1174         iter_data->offloading_tid = ffs(available_tids) - 1;
1175         return false;
1176 }
1177
1178 static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
1179                                         struct ieee80211_vif *vif)
1180 {
1181         struct iwl_d0i3_iter_data *data = _data;
1182         struct iwl_mvm *mvm = data->mvm;
1183         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1184         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1185
1186         IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
1187         if (vif->type != NL80211_IFTYPE_STATION ||
1188             !vif->bss_conf.assoc)
1189                 return;
1190
1191         /*
1192          * in case of pending tx packets or active aggregations,
1193          * avoid offloading features in order to prevent reuse of
1194          * the same qos seq counters.
1195          */
1196         if (iwl_mvm_disallow_offloading(mvm, vif, data))
1197                 data->disable_offloading = true;
1198
1199         iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
1200         iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading,
1201                                    false, flags);
1202
1203         /*
1204          * on init/association, mvm already configures POWER_TABLE_CMD
1205          * and REPLY_MCAST_FILTER_CMD, so currently don't
1206          * reconfigure them (we might want to use different
1207          * params later on, though).
1208          */
1209         data->ap_sta_id = mvmvif->ap_sta_id;
1210         data->vif_count++;
1211
1212         /*
1213          * no new commands can be sent at this stage, so it's safe
1214          * to save the vif pointer during d0i3 entrance.
1215          */
1216         data->connected_vif = vif;
1217 }
1218
1219 static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
1220                                     struct iwl_wowlan_config_cmd *cmd,
1221                                     struct iwl_d0i3_iter_data *iter_data)
1222 {
1223         struct ieee80211_sta *ap_sta;
1224         struct iwl_mvm_sta *mvm_ap_sta;
1225
1226         if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
1227                 return;
1228
1229         rcu_read_lock();
1230
1231         ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
1232         if (IS_ERR_OR_NULL(ap_sta))
1233                 goto out;
1234
1235         mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
1236         cmd->is_11n_connection = ap_sta->ht_cap.ht_supported;
1237         cmd->offloading_tid = iter_data->offloading_tid;
1238         cmd->flags = ENABLE_L3_FILTERING | ENABLE_NBNS_FILTERING |
1239                 ENABLE_DHCP_FILTERING | ENABLE_STORE_BEACON;
1240         /*
1241          * The d0i3 uCode takes care of the nonqos counters,
1242          * so configure only the qos seq ones.
1243          */
1244         iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd);
1245 out:
1246         rcu_read_unlock();
1247 }
1248
1249 int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
1250 {
1251         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1252         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1253         int ret;
1254         struct iwl_d0i3_iter_data d0i3_iter_data = {
1255                 .mvm = mvm,
1256         };
1257         struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1258                 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
1259                                              IWL_WOWLAN_WAKEUP_BEACON_MISS |
1260                                              IWL_WOWLAN_WAKEUP_LINK_CHANGE),
1261         };
1262         struct iwl_d3_manager_config d3_cfg_cmd = {
1263                 .min_sleep_time = cpu_to_le32(1000),
1264                 .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR),
1265         };
1266
1267         IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
1268
1269         if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1270                 return -EINVAL;
1271
1272         set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1273
1274         /*
1275          * iwl_mvm_ref_sync takes a reference before checking the flag.
1276          * so by checking there is no held reference we prevent a state
1277          * in which iwl_mvm_ref_sync continues successfully while we
1278          * configure the firmware to enter d0i3
1279          */
1280         if (iwl_mvm_ref_taken(mvm)) {
1281                 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n");
1282                 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1283                 wake_up(&mvm->d0i3_exit_waitq);
1284                 return 1;
1285         }
1286
1287         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1288                                                    IEEE80211_IFACE_ITER_NORMAL,
1289                                                    iwl_mvm_enter_d0i3_iterator,
1290                                                    &d0i3_iter_data);
1291         if (d0i3_iter_data.vif_count == 1) {
1292                 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
1293                 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
1294         } else {
1295                 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
1296                 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1297                 mvm->d0i3_offloading = false;
1298         }
1299
1300         /* make sure we have no running tx while configuring the seqno */
1301         synchronize_net();
1302
1303         /* Flush the hw queues, in case something got queued during entry */
1304         ret = iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm), flags);
1305         if (ret)
1306                 return ret;
1307
1308         /* configure wowlan configuration only if needed */
1309         if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) {
1310                 /* wake on beacons only if beacon storing isn't supported */
1311                 if (!fw_has_capa(&mvm->fw->ucode_capa,
1312                                  IWL_UCODE_TLV_CAPA_BEACON_STORING))
1313                         wowlan_config_cmd.wakeup_filter |=
1314                                 cpu_to_le32(IWL_WOWLAN_WAKEUP_BCN_FILTERING);
1315
1316                 iwl_mvm_wowlan_config_key_params(mvm,
1317                                                  d0i3_iter_data.connected_vif,
1318                                                  true, flags);
1319
1320                 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd,
1321                                         &d0i3_iter_data);
1322
1323                 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
1324                                            sizeof(wowlan_config_cmd),
1325                                            &wowlan_config_cmd);
1326                 if (ret)
1327                         return ret;
1328         }
1329
1330         return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
1331                                     flags | CMD_MAKE_TRANS_IDLE,
1332                                     sizeof(d3_cfg_cmd), &d3_cfg_cmd);
1333 }
1334
1335 static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
1336                                        struct ieee80211_vif *vif)
1337 {
1338         struct iwl_mvm *mvm = _data;
1339         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
1340
1341         IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
1342         if (vif->type != NL80211_IFTYPE_STATION ||
1343             !vif->bss_conf.assoc)
1344                 return;
1345
1346         iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
1347 }
1348
1349 struct iwl_mvm_d0i3_exit_work_iter_data {
1350         struct iwl_mvm *mvm;
1351         struct iwl_wowlan_status *status;
1352         u32 wakeup_reasons;
1353 };
1354
1355 static void iwl_mvm_d0i3_exit_work_iter(void *_data, u8 *mac,
1356                                         struct ieee80211_vif *vif)
1357 {
1358         struct iwl_mvm_d0i3_exit_work_iter_data *data = _data;
1359         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1360         u32 reasons = data->wakeup_reasons;
1361
1362         /* consider only the relevant station interface */
1363         if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1364             data->mvm->d0i3_ap_sta_id != mvmvif->ap_sta_id)
1365                 return;
1366
1367         if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)
1368                 iwl_mvm_connection_loss(data->mvm, vif, "D0i3");
1369         else if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON)
1370                 ieee80211_beacon_loss(vif);
1371         else
1372                 iwl_mvm_d0i3_update_keys(data->mvm, vif, data->status);
1373 }
1374
1375 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
1376 {
1377         struct ieee80211_sta *sta = NULL;
1378         struct iwl_mvm_sta *mvm_ap_sta;
1379         int i;
1380         bool wake_queues = false;
1381
1382         lockdep_assert_held(&mvm->mutex);
1383
1384         spin_lock_bh(&mvm->d0i3_tx_lock);
1385
1386         if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
1387                 goto out;
1388
1389         IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
1390
1391         /* get the sta in order to update seq numbers and re-enqueue skbs */
1392         sta = rcu_dereference_protected(
1393                         mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
1394                         lockdep_is_held(&mvm->mutex));
1395
1396         if (IS_ERR_OR_NULL(sta)) {
1397                 sta = NULL;
1398                 goto out;
1399         }
1400
1401         if (mvm->d0i3_offloading && qos_seq) {
1402                 /* update qos seq numbers if offloading was enabled */
1403                 mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta);
1404                 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1405                         u16 seq = le16_to_cpu(qos_seq[i]);
1406                         /* firmware stores last-used one, we store next one */
1407                         seq += 0x10;
1408                         mvm_ap_sta->tid_data[i].seq_number = seq;
1409                 }
1410         }
1411 out:
1412         /* re-enqueue (or drop) all packets */
1413         while (!skb_queue_empty(&mvm->d0i3_tx)) {
1414                 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
1415
1416                 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
1417                         ieee80211_free_txskb(mvm->hw, skb);
1418
1419                 /* if the skb_queue is not empty, we need to wake queues */
1420                 wake_queues = true;
1421         }
1422         clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1423         wake_up(&mvm->d0i3_exit_waitq);
1424         mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1425         if (wake_queues)
1426                 ieee80211_wake_queues(mvm->hw);
1427
1428         spin_unlock_bh(&mvm->d0i3_tx_lock);
1429 }
1430
1431 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
1432 {
1433         struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
1434         struct iwl_host_cmd get_status_cmd = {
1435                 .id = WOWLAN_GET_STATUSES,
1436                 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
1437         };
1438         struct iwl_mvm_d0i3_exit_work_iter_data iter_data = {
1439                 .mvm = mvm,
1440         };
1441
1442         struct iwl_wowlan_status *status;
1443         int ret;
1444         u32 wakeup_reasons = 0;
1445         __le16 *qos_seq = NULL;
1446
1447         mutex_lock(&mvm->mutex);
1448         ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
1449         if (ret)
1450                 goto out;
1451
1452         if (!get_status_cmd.resp_pkt)
1453                 goto out;
1454
1455         status = (void *)get_status_cmd.resp_pkt->data;
1456         wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
1457         qos_seq = status->qos_seq_ctr;
1458
1459         IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
1460
1461         iter_data.wakeup_reasons = wakeup_reasons;
1462         iter_data.status = status;
1463         ieee80211_iterate_active_interfaces(mvm->hw,
1464                                             IEEE80211_IFACE_ITER_NORMAL,
1465                                             iwl_mvm_d0i3_exit_work_iter,
1466                                             &iter_data);
1467 out:
1468         iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
1469
1470         IWL_DEBUG_INFO(mvm, "d0i3 exit completed (wakeup reasons: 0x%x)\n",
1471                        wakeup_reasons);
1472
1473         /* qos_seq might point inside resp_pkt, so free it only now */
1474         if (get_status_cmd.resp_pkt)
1475                 iwl_free_resp(&get_status_cmd);
1476
1477         /* the FW might have updated the regdomain */
1478         iwl_mvm_update_changed_regdom(mvm);
1479
1480         iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
1481         mutex_unlock(&mvm->mutex);
1482 }
1483
1484 int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
1485 {
1486         u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
1487                     CMD_WAKE_UP_TRANS;
1488         int ret;
1489
1490         IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
1491
1492         if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1493                 return -EINVAL;
1494
1495         mutex_lock(&mvm->d0i3_suspend_mutex);
1496         if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
1497                 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
1498                 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
1499                 mutex_unlock(&mvm->d0i3_suspend_mutex);
1500                 return 0;
1501         }
1502         mutex_unlock(&mvm->d0i3_suspend_mutex);
1503
1504         ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
1505         if (ret)
1506                 goto out;
1507
1508         ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1509                                                    IEEE80211_IFACE_ITER_NORMAL,
1510                                                    iwl_mvm_exit_d0i3_iterator,
1511                                                    mvm);
1512 out:
1513         schedule_work(&mvm->d0i3_exit_work);
1514         return ret;
1515 }
1516
1517 int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
1518 {
1519         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1520
1521         iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
1522         return _iwl_mvm_exit_d0i3(mvm);
1523 }
1524
1525 #define IWL_MVM_COMMON_OPS                                      \
1526         /* these could be differentiated */                     \
1527         .async_cb = iwl_mvm_async_cb,                           \
1528         .queue_full = iwl_mvm_stop_sw_queue,                    \
1529         .queue_not_full = iwl_mvm_wake_sw_queue,                \
1530         .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,              \
1531         .free_skb = iwl_mvm_free_skb,                           \
1532         .nic_error = iwl_mvm_nic_error,                         \
1533         .cmd_queue_full = iwl_mvm_cmd_queue_full,               \
1534         .nic_config = iwl_mvm_nic_config,                       \
1535         .enter_d0i3 = iwl_mvm_enter_d0i3,                       \
1536         .exit_d0i3 = iwl_mvm_exit_d0i3,                         \
1537         /* as we only register one, these MUST be common! */    \
1538         .start = iwl_op_mode_mvm_start,                         \
1539         .stop = iwl_op_mode_mvm_stop
1540
1541 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1542         IWL_MVM_COMMON_OPS,
1543         .rx = iwl_mvm_rx,
1544 };
1545
1546 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1547                               struct napi_struct *napi,
1548                               struct iwl_rx_cmd_buffer *rxb,
1549                               unsigned int queue)
1550 {
1551         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1552         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1553
1554         if (unlikely(pkt->hdr.cmd == FRAME_RELEASE))
1555                 iwl_mvm_rx_frame_release(mvm, rxb, queue);
1556         else if (unlikely(pkt->hdr.cmd == RX_QUEUES_NOTIFICATION &&
1557                           pkt->hdr.group_id == DATA_PATH_GROUP))
1558                 iwl_mvm_rx_queue_notif(mvm, rxb, queue);
1559         else
1560                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1561 }
1562
1563 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1564         IWL_MVM_COMMON_OPS,
1565         .rx = iwl_mvm_rx_mq,
1566         .rx_rss = iwl_mvm_rx_mq_rss,
1567 };