drivers/net/wireless/intel/iwlwifi/mvm/ops.c

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
iwl_mvm_init
iwl_mvm_exit
iwl_mvm_nic_config
iwl_mvm_min_backoff
iwl_mvm_tx_unblock_dwork
iwl_mvm_fwrt_dump_start
iwl_mvm_fwrt_dump_end
iwl_mvm_fwrt_fw_running
iwl_mvm_fwrt_send_hcmd
iwl_mvm_d3_debug_enable
iwl_op_mode_mvm_start
iwl_op_mode_mvm_stop
iwl_mvm_async_handlers_purge
iwl_mvm_async_handlers_wk
iwl_mvm_rx_check_trigger
iwl_mvm_rx_common
iwl_mvm_rx
iwl_mvm_rx_mq
iwl_mvm_async_cb
iwl_mvm_is_static_queue
iwl_mvm_queue_state_change
iwl_mvm_stop_sw_queue
iwl_mvm_wake_sw_queue
iwl_mvm_set_rfkill_state
iwl_mvm_set_hw_ctkill_state
iwl_mvm_set_hw_rfkill_state
iwl_mvm_free_skb
iwl_mvm_reprobe_wk
iwl_mvm_nic_restart
iwl_mvm_nic_error
iwl_mvm_cmd_queue_full
iwl_mvm_rx_mq_rss
   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  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  11  * Copyright(c) 2018 - 2019 Intel Corporation
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of version 2 of the GNU General Public License as
  15  * published by the Free Software Foundation.
  16  *
  17  * This program is distributed in the hope that it will be useful, but
  18  * WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * General Public License for more details.
  21  *
  22  * The full GNU General Public License is included in this distribution
  23  * in the file called COPYING.
  24  *
  25  * Contact Information:
  26  *  Intel Linux Wireless <linuxwifi@intel.com>
  27  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  28  *
  29  * BSD LICENSE
  30  *
  31  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  32  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  33  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
  34  * Copyright(c) 2018 - 2019 Intel Corporation
  35  * All rights reserved.
  36  *
  37  * Redistribution and use in source and binary forms, with or without
  38  * modification, are permitted provided that the following conditions
  39  * are met:
  40  *
  41  *  * Redistributions of source code must retain the above copyright
  42  *    notice, this list of conditions and the following disclaimer.
  43  *  * Redistributions in binary form must reproduce the above copyright
  44  *    notice, this list of conditions and the following disclaimer in
  45  *    the documentation and/or other materials provided with the
  46  *    distribution.
  47  *  * Neither the name Intel Corporation nor the names of its
  48  *    contributors may be used to endorse or promote products derived
  49  *    from this software without specific prior written permission.
  50  *
  51  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  52  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  53  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  54  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  55  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  56  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  57  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  58  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  59  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  60  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  61  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  62  *
  63  *****************************************************************************/
  64 #include <linux/module.h>
  65 #include <linux/vmalloc.h>
  66 #include <net/mac80211.h>
  67 
  68 #include "fw/notif-wait.h"
  69 #include "iwl-trans.h"
  70 #include "iwl-op-mode.h"
  71 #include "fw/img.h"
  72 #include "iwl-debug.h"
  73 #include "iwl-drv.h"
  74 #include "iwl-modparams.h"
  75 #include "mvm.h"
  76 #include "iwl-phy-db.h"
  77 #include "iwl-eeprom-parse.h"
  78 #include "iwl-csr.h"
  79 #include "iwl-io.h"
  80 #include "iwl-prph.h"
  81 #include "rs.h"
  82 #include "fw/api/scan.h"
  83 #include "time-event.h"
  84 #include "fw-api.h"
  85 #include "fw/acpi.h"
  86 
  87 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
  88 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  89 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
  90 MODULE_LICENSE("GPL");
  91 
  92 static const struct iwl_op_mode_ops iwl_mvm_ops;
  93 static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
  94 
  95 struct iwl_mvm_mod_params iwlmvm_mod_params = {
  96         .power_scheme = IWL_POWER_SCHEME_BPS,
  97         .tfd_q_hang_detect = true
  98         /* rest of fields are 0 by default */
  99 };
 100 
 101 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444);
 102 MODULE_PARM_DESC(init_dbg,
 103                  "set to true to debug an ASSERT in INIT fw (default: false");
 104 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444);
 105 MODULE_PARM_DESC(power_scheme,
 106                  "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
 107 module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect,
 108                    bool, 0444);
 109 MODULE_PARM_DESC(tfd_q_hang_detect,
 110                  "TFD queues hang detection (default: true");
 111 
 112 /*
 113  * module init and exit functions
 114  */
 115 static int __init iwl_mvm_init(void)
 116 {
 117         int ret;
 118 
 119         ret = iwl_mvm_rate_control_register();
 120         if (ret) {
 121                 pr_err("Unable to register rate control algorithm: %d\n", ret);
 122                 return ret;
 123         }
 124 
 125         ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
 126         if (ret)
 127                 pr_err("Unable to register MVM op_mode: %d\n", ret);
 128 
 129         return ret;
 130 }
 131 module_init(iwl_mvm_init);
 132 
 133 static void __exit iwl_mvm_exit(void)
 134 {
 135         iwl_opmode_deregister("iwlmvm");
 136         iwl_mvm_rate_control_unregister();
 137 }
 138 module_exit(iwl_mvm_exit);
 139 
 140 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
 141 {
 142         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 143         u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
 144         u32 reg_val = 0;
 145         u32 phy_config = iwl_mvm_get_phy_config(mvm);
 146 
 147         radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
 148                          FW_PHY_CFG_RADIO_TYPE_POS;
 149         radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
 150                          FW_PHY_CFG_RADIO_STEP_POS;
 151         radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
 152                          FW_PHY_CFG_RADIO_DASH_POS;
 153 
 154         /* SKU control */
 155         reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
 156                                 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
 157         reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
 158                                 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
 159 
 160         /* radio configuration */
 161         reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
 162         reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
 163         reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
 164 
 165         WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
 166                  ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
 167 
 168         /*
 169          * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC
 170          * sampling, and shouldn't be set to any non-zero value.
 171          * The same is supposed to be true of the other HW, but unsetting
 172          * them (such as the 7260) causes automatic tests to fail on seemingly
 173          * unrelated errors. Need to further investigate this, but for now
 174          * we'll separate cases.
 175          */
 176         if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000)
 177                 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
 178 
 179         if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt))
 180                 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG;
 181 
 182         iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
 183                                 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
 184                                 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
 185                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
 186                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
 187                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
 188                                 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
 189                                 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI   |
 190                                 CSR_HW_IF_CONFIG_REG_D3_DEBUG,
 191                                 reg_val);
 192 
 193         IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
 194                        radio_cfg_step, radio_cfg_dash);
 195 
 196         /*
 197          * W/A : NIC is stuck in a reset state after Early PCIe power off
 198          * (PCIe power is lost before PERST# is asserted), causing ME FW
 199          * to lose ownership and not being able to obtain it back.
 200          */
 201         if (!mvm->trans->cfg->apmg_not_supported)
 202                 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
 203                                        APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
 204                                        ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
 205 }
 206 
 207 /**
 208  * enum iwl_rx_handler_context context for Rx handler
 209  * @RX_HANDLER_SYNC : this means that it will be called in the Rx path
 210  *      which can't acquire mvm->mutex.
 211  * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex
 212  *      (and only in this case!), it should be set as ASYNC. In that case,
 213  *      it will be called from a worker with mvm->mutex held.
 214  * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the
 215  *      mutex itself, it will be called from a worker without mvm->mutex held.
 216  */
 217 enum iwl_rx_handler_context {
 218         RX_HANDLER_SYNC,
 219         RX_HANDLER_ASYNC_LOCKED,
 220         RX_HANDLER_ASYNC_UNLOCKED,
 221 };
 222 
 223 /**
 224  * struct iwl_rx_handlers handler for FW notification
 225  * @cmd_id: command id
 226  * @context: see &iwl_rx_handler_context
 227  * @fn: the function is called when notification is received
 228  */
 229 struct iwl_rx_handlers {
 230         u16 cmd_id;
 231         enum iwl_rx_handler_context context;
 232         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
 233 };
 234 
 235 #define RX_HANDLER(_cmd_id, _fn, _context)      \
 236         { .cmd_id = _cmd_id, .fn = _fn, .context = _context }
 237 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context)       \
 238         { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context }
 239 
 240 /*
 241  * Handlers for fw notifications
 242  * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
 243  * This list should be in order of frequency for performance purposes.
 244  *
 245  * The handler can be one from three contexts, see &iwl_rx_handler_context
 246  */
 247 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
 248         RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC),
 249         RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC),
 250 
 251         RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF,
 252                        iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC),
 253 
 254         RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif,
 255                    RX_HANDLER_ASYNC_LOCKED),
 256         RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif,
 257                    RX_HANDLER_ASYNC_LOCKED),
 258         RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics,
 259                    RX_HANDLER_ASYNC_LOCKED),
 260 
 261         RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID,
 262                    iwl_mvm_window_status_notif, RX_HANDLER_SYNC),
 263 
 264         RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif,
 265                    RX_HANDLER_SYNC),
 266         RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc,
 267                    RX_HANDLER_ASYNC_LOCKED),
 268 
 269         RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC),
 270 
 271         RX_HANDLER(SCAN_ITERATION_COMPLETE,
 272                    iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC),
 273         RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
 274                    iwl_mvm_rx_lmac_scan_complete_notif,
 275                    RX_HANDLER_ASYNC_LOCKED),
 276         RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found,
 277                    RX_HANDLER_SYNC),
 278         RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
 279                    RX_HANDLER_ASYNC_LOCKED),
 280         RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
 281                    iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC),
 282 
 283         RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif,
 284                    RX_HANDLER_SYNC),
 285 
 286         RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
 287                    RX_HANDLER_SYNC),
 288 
 289         RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC),
 290         RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
 291                    iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC),
 292         RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif,
 293                    RX_HANDLER_ASYNC_LOCKED),
 294         RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
 295                        iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED),
 296         RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
 297                        iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC),
 298 
 299         RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
 300                    RX_HANDLER_ASYNC_LOCKED),
 301         RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif,
 302                    RX_HANDLER_SYNC),
 303         RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS,
 304                        iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED),
 305 
 306         RX_HANDLER_GRP(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF,
 307                        iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED),
 308         RX_HANDLER_GRP(LOCATION_GROUP, TOF_LC_NOTIF,
 309                        iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED),
 310 
 311         RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF,
 312                        iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC),
 313         RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
 314                        iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC),
 315         RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF,
 316                        iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC),
 317         RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF,
 318                        iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC),
 319 };
 320 #undef RX_HANDLER
 321 #undef RX_HANDLER_GRP
 322 
 323 /* Please keep this array *SORTED* by hex value.
 324  * Access is done through binary search
 325  */
 326 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
 327         HCMD_NAME(MVM_ALIVE),
 328         HCMD_NAME(REPLY_ERROR),
 329         HCMD_NAME(ECHO_CMD),
 330         HCMD_NAME(INIT_COMPLETE_NOTIF),
 331         HCMD_NAME(PHY_CONTEXT_CMD),
 332         HCMD_NAME(DBG_CFG),
 333         HCMD_NAME(SCAN_CFG_CMD),
 334         HCMD_NAME(SCAN_REQ_UMAC),
 335         HCMD_NAME(SCAN_ABORT_UMAC),
 336         HCMD_NAME(SCAN_COMPLETE_UMAC),
 337         HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
 338         HCMD_NAME(ADD_STA_KEY),
 339         HCMD_NAME(ADD_STA),
 340         HCMD_NAME(REMOVE_STA),
 341         HCMD_NAME(FW_GET_ITEM_CMD),
 342         HCMD_NAME(TX_CMD),
 343         HCMD_NAME(SCD_QUEUE_CFG),
 344         HCMD_NAME(TXPATH_FLUSH),
 345         HCMD_NAME(MGMT_MCAST_KEY),
 346         HCMD_NAME(WEP_KEY),
 347         HCMD_NAME(SHARED_MEM_CFG),
 348         HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
 349         HCMD_NAME(MAC_CONTEXT_CMD),
 350         HCMD_NAME(TIME_EVENT_CMD),
 351         HCMD_NAME(TIME_EVENT_NOTIFICATION),
 352         HCMD_NAME(BINDING_CONTEXT_CMD),
 353         HCMD_NAME(TIME_QUOTA_CMD),
 354         HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
 355         HCMD_NAME(LEDS_CMD),
 356         HCMD_NAME(LQ_CMD),
 357         HCMD_NAME(FW_PAGING_BLOCK_CMD),
 358         HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
 359         HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
 360         HCMD_NAME(HOT_SPOT_CMD),
 361         HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
 362         HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
 363         HCMD_NAME(BT_COEX_CI),
 364         HCMD_NAME(PHY_CONFIGURATION_CMD),
 365         HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
 366         HCMD_NAME(PHY_DB_CMD),
 367         HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
 368         HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
 369         HCMD_NAME(POWER_TABLE_CMD),
 370         HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
 371         HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
 372         HCMD_NAME(DC2DC_CONFIG_CMD),
 373         HCMD_NAME(NVM_ACCESS_CMD),
 374         HCMD_NAME(BEACON_NOTIFICATION),
 375         HCMD_NAME(BEACON_TEMPLATE_CMD),
 376         HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
 377         HCMD_NAME(BT_CONFIG),
 378         HCMD_NAME(STATISTICS_CMD),
 379         HCMD_NAME(STATISTICS_NOTIFICATION),
 380         HCMD_NAME(EOSP_NOTIFICATION),
 381         HCMD_NAME(REDUCE_TX_POWER_CMD),
 382         HCMD_NAME(CARD_STATE_NOTIFICATION),
 383         HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
 384         HCMD_NAME(TDLS_CONFIG_CMD),
 385         HCMD_NAME(MAC_PM_POWER_TABLE),
 386         HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
 387         HCMD_NAME(MFUART_LOAD_NOTIFICATION),
 388         HCMD_NAME(RSS_CONFIG_CMD),
 389         HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
 390         HCMD_NAME(REPLY_RX_PHY_CMD),
 391         HCMD_NAME(REPLY_RX_MPDU_CMD),
 392         HCMD_NAME(BAR_FRAME_RELEASE),
 393         HCMD_NAME(FRAME_RELEASE),
 394         HCMD_NAME(BA_NOTIF),
 395         HCMD_NAME(MCC_UPDATE_CMD),
 396         HCMD_NAME(MCC_CHUB_UPDATE_CMD),
 397         HCMD_NAME(MARKER_CMD),
 398         HCMD_NAME(BT_PROFILE_NOTIFICATION),
 399         HCMD_NAME(BCAST_FILTER_CMD),
 400         HCMD_NAME(MCAST_FILTER_CMD),
 401         HCMD_NAME(REPLY_SF_CFG_CMD),
 402         HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
 403         HCMD_NAME(D3_CONFIG_CMD),
 404         HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
 405         HCMD_NAME(OFFLOADS_QUERY_CMD),
 406         HCMD_NAME(REMOTE_WAKE_CONFIG_CMD),
 407         HCMD_NAME(MATCH_FOUND_NOTIFICATION),
 408         HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
 409         HCMD_NAME(WOWLAN_PATTERNS),
 410         HCMD_NAME(WOWLAN_CONFIGURATION),
 411         HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
 412         HCMD_NAME(WOWLAN_TKIP_PARAM),
 413         HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
 414         HCMD_NAME(WOWLAN_GET_STATUSES),
 415         HCMD_NAME(SCAN_ITERATION_COMPLETE),
 416         HCMD_NAME(D0I3_END_CMD),
 417         HCMD_NAME(LTR_CONFIG),
 418         HCMD_NAME(LDBG_CONFIG_CMD),
 419 };
 420 
 421 /* Please keep this array *SORTED* by hex value.
 422  * Access is done through binary search
 423  */
 424 static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
 425         HCMD_NAME(SHARED_MEM_CFG_CMD),
 426         HCMD_NAME(INIT_EXTENDED_CFG_CMD),
 427         HCMD_NAME(FW_ERROR_RECOVERY_CMD),
 428 };
 429 
 430 /* Please keep this array *SORTED* by hex value.
 431  * Access is done through binary search
 432  */
 433 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
 434         HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD),
 435         HCMD_NAME(CHANNEL_SWITCH_NOA_NOTIF),
 436 };
 437 
 438 /* Please keep this array *SORTED* by hex value.
 439  * Access is done through binary search
 440  */
 441 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
 442         HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
 443         HCMD_NAME(CTDP_CONFIG_CMD),
 444         HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
 445         HCMD_NAME(GEO_TX_POWER_LIMIT),
 446         HCMD_NAME(CT_KILL_NOTIFICATION),
 447         HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
 448 };
 449 
 450 /* Please keep this array *SORTED* by hex value.
 451  * Access is done through binary search
 452  */
 453 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
 454         HCMD_NAME(DQA_ENABLE_CMD),
 455         HCMD_NAME(UPDATE_MU_GROUPS_CMD),
 456         HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
 457         HCMD_NAME(STA_HE_CTXT_CMD),
 458         HCMD_NAME(RFH_QUEUE_CONFIG_CMD),
 459         HCMD_NAME(TLC_MNG_CONFIG_CMD),
 460         HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD),
 461         HCMD_NAME(STA_PM_NOTIF),
 462         HCMD_NAME(MU_GROUP_MGMT_NOTIF),
 463         HCMD_NAME(RX_QUEUES_NOTIFICATION),
 464 };
 465 
 466 /* Please keep this array *SORTED* by hex value.
 467  * Access is done through binary search
 468  */
 469 static const struct iwl_hcmd_names iwl_mvm_debug_names[] = {
 470         HCMD_NAME(DBGC_SUSPEND_RESUME),
 471         HCMD_NAME(BUFFER_ALLOCATION),
 472         HCMD_NAME(MFU_ASSERT_DUMP_NTF),
 473 };
 474 
 475 /* Please keep this array *SORTED* by hex value.
 476  * Access is done through binary search
 477  */
 478 static const struct iwl_hcmd_names iwl_mvm_location_names[] = {
 479         HCMD_NAME(TOF_RANGE_REQ_CMD),
 480         HCMD_NAME(TOF_CONFIG_CMD),
 481         HCMD_NAME(TOF_RANGE_ABORT_CMD),
 482         HCMD_NAME(TOF_RANGE_REQ_EXT_CMD),
 483         HCMD_NAME(TOF_RESPONDER_CONFIG_CMD),
 484         HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD),
 485         HCMD_NAME(TOF_LC_NOTIF),
 486         HCMD_NAME(TOF_RESPONDER_STATS),
 487         HCMD_NAME(TOF_MCSI_DEBUG_NOTIF),
 488         HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF),
 489 };
 490 
 491 /* Please keep this array *SORTED* by hex value.
 492  * Access is done through binary search
 493  */
 494 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
 495         HCMD_NAME(STORED_BEACON_NTF),
 496 };
 497 
 498 /* Please keep this array *SORTED* by hex value.
 499  * Access is done through binary search
 500  */
 501 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = {
 502         HCMD_NAME(NVM_ACCESS_COMPLETE),
 503         HCMD_NAME(NVM_GET_INFO),
 504 };
 505 
 506 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
 507         [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 508         [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 509         [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
 510         [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
 511         [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
 512         [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
 513         [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names),
 514         [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
 515         [REGULATORY_AND_NVM_GROUP] =
 516                 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),
 517 };
 518 
 519 /* this forward declaration can avoid to export the function */
 520 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
 521 
 522 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm)
 523 {
 524         const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs;
 525         u64 dflt_pwr_limit;
 526 
 527         if (!backoff)
 528                 return 0;
 529 
 530         dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev);
 531 
 532         while (backoff->pwr) {
 533                 if (dflt_pwr_limit >= backoff->pwr)
 534                         return backoff->backoff;
 535 
 536                 backoff++;
 537         }
 538 
 539         return 0;
 540 }
 541 
 542 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
 543 {
 544         struct iwl_mvm *mvm =
 545                 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
 546         struct ieee80211_vif *tx_blocked_vif;
 547         struct iwl_mvm_vif *mvmvif;
 548 
 549         mutex_lock(&mvm->mutex);
 550 
 551         tx_blocked_vif =
 552                 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
 553                                           lockdep_is_held(&mvm->mutex));
 554 
 555         if (!tx_blocked_vif)
 556                 goto unlock;
 557 
 558         mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
 559         iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
 560         RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
 561 unlock:
 562         mutex_unlock(&mvm->mutex);
 563 }
 564 
 565 static int iwl_mvm_fwrt_dump_start(void *ctx)
 566 {
 567         struct iwl_mvm *mvm = ctx;
 568 
 569         mutex_lock(&mvm->mutex);
 570 
 571         return 0;
 572 }
 573 
 574 static void iwl_mvm_fwrt_dump_end(void *ctx)
 575 {
 576         struct iwl_mvm *mvm = ctx;
 577 
 578         mutex_unlock(&mvm->mutex);
 579 }
 580 
 581 static bool iwl_mvm_fwrt_fw_running(void *ctx)
 582 {
 583         return iwl_mvm_firmware_running(ctx);
 584 }
 585 
 586 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd)
 587 {
 588         struct iwl_mvm *mvm = (struct iwl_mvm *)ctx;
 589         int ret;
 590 
 591         mutex_lock(&mvm->mutex);
 592         ret = iwl_mvm_send_cmd(mvm, host_cmd);
 593         mutex_unlock(&mvm->mutex);
 594 
 595         return ret;
 596 }
 597 
 598 static bool iwl_mvm_d3_debug_enable(void *ctx)
 599 {
 600         return IWL_MVM_D3_DEBUG;
 601 }
 602 
 603 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
 604         .dump_start = iwl_mvm_fwrt_dump_start,
 605         .dump_end = iwl_mvm_fwrt_dump_end,
 606         .fw_running = iwl_mvm_fwrt_fw_running,
 607         .send_hcmd = iwl_mvm_fwrt_send_hcmd,
 608         .d3_debug_enable = iwl_mvm_d3_debug_enable,
 609 };
 610 
 611 static struct iwl_op_mode *
 612 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 613                       const struct iwl_fw *fw, struct dentry *dbgfs_dir)
 614 {
 615         struct ieee80211_hw *hw;
 616         struct iwl_op_mode *op_mode;
 617         struct iwl_mvm *mvm;
 618         struct iwl_trans_config trans_cfg = {};
 619         static const u8 no_reclaim_cmds[] = {
 620                 TX_CMD,
 621         };
 622         int err, scan_size;
 623         u32 min_backoff;
 624         enum iwl_amsdu_size rb_size_default;
 625 
 626         /*
 627          * We use IWL_MVM_STATION_COUNT to check the validity of the station
 628          * index all over the driver - check that its value corresponds to the
 629          * array size.
 630          */
 631         BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);
 632 
 633         /********************************
 634          * 1. Allocating and configuring HW data
 635          ********************************/
 636         hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
 637                                 sizeof(struct iwl_mvm),
 638                                 &iwl_mvm_hw_ops);
 639         if (!hw)
 640                 return NULL;
 641 
 642         if (cfg->max_rx_agg_size)
 643                 hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
 644         else
 645                 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
 646 
 647         if (cfg->max_tx_agg_size)
 648                 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
 649         else
 650                 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
 651 
 652         op_mode = hw->priv;
 653 
 654         mvm = IWL_OP_MODE_GET_MVM(op_mode);
 655         mvm->dev = trans->dev;
 656         mvm->trans = trans;
 657         mvm->cfg = cfg;
 658         mvm->fw = fw;
 659         mvm->hw = hw;
 660 
 661         iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm,
 662                             dbgfs_dir);
 663 
 664         mvm->init_status = 0;
 665 
 666         if (iwl_mvm_has_new_rx_api(mvm)) {
 667                 op_mode->ops = &iwl_mvm_ops_mq;
 668                 trans->rx_mpdu_cmd_hdr_size =
 669                         (trans->trans_cfg->device_family >=
 670                          IWL_DEVICE_FAMILY_22560) ?
 671                         sizeof(struct iwl_rx_mpdu_desc) :
 672                         IWL_RX_DESC_SIZE_V1;
 673         } else {
 674                 op_mode->ops = &iwl_mvm_ops;
 675                 trans->rx_mpdu_cmd_hdr_size =
 676                         sizeof(struct iwl_rx_mpdu_res_start);
 677 
 678                 if (WARN_ON(trans->num_rx_queues > 1))
 679                         goto out_free;
 680         }
 681 
 682         mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
 683 
 684         mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
 685         mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE;
 686         mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
 687         mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
 688 
 689         mvm->sf_state = SF_UNINIT;
 690         if (iwl_mvm_has_unified_ucode(mvm))
 691                 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR);
 692         else
 693                 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT);
 694         mvm->drop_bcn_ap_mode = true;
 695 
 696         mutex_init(&mvm->mutex);
 697         spin_lock_init(&mvm->async_handlers_lock);
 698         INIT_LIST_HEAD(&mvm->time_event_list);
 699         INIT_LIST_HEAD(&mvm->aux_roc_te_list);
 700         INIT_LIST_HEAD(&mvm->async_handlers_list);
 701         spin_lock_init(&mvm->time_event_lock);
 702         INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list);
 703 
 704         INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
 705         INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
 706         INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
 707         INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
 708         INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
 709         INIT_LIST_HEAD(&mvm->add_stream_txqs);
 710 
 711         init_waitqueue_head(&mvm->rx_sync_waitq);
 712 
 713         atomic_set(&mvm->queue_sync_counter, 0);
 714 
 715         SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
 716 
 717         spin_lock_init(&mvm->tcm.lock);
 718         INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work);
 719         mvm->tcm.ts = jiffies;
 720         mvm->tcm.ll_ts = jiffies;
 721         mvm->tcm.uapsd_nonagg_ts = jiffies;
 722 
 723         INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
 724 
 725         /*
 726          * Populate the state variables that the transport layer needs
 727          * to know about.
 728          */
 729         trans_cfg.op_mode = op_mode;
 730         trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
 731         trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
 732 
 733         if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22560)
 734                 rb_size_default = IWL_AMSDU_2K;
 735         else
 736                 rb_size_default = IWL_AMSDU_4K;
 737 
 738         switch (iwlwifi_mod_params.amsdu_size) {
 739         case IWL_AMSDU_DEF:
 740                 trans_cfg.rx_buf_size = rb_size_default;
 741                 break;
 742         case IWL_AMSDU_4K:
 743                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
 744                 break;
 745         case IWL_AMSDU_8K:
 746                 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
 747                 break;
 748         case IWL_AMSDU_12K:
 749                 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
 750                 break;
 751         default:
 752                 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
 753                        iwlwifi_mod_params.amsdu_size);
 754                 trans_cfg.rx_buf_size = rb_size_default;
 755         }
 756 
 757         trans->wide_cmd_header = true;
 758         trans_cfg.bc_table_dword =
 759                 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_22560;
 760 
 761         trans_cfg.command_groups = iwl_mvm_groups;
 762         trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
 763 
 764         trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
 765         trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
 766         trans_cfg.scd_set_active = true;
 767 
 768         trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
 769                                           driver_data[2]);
 770 
 771         trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD;
 772 
 773         /* Set a short watchdog for the command queue */
 774         trans_cfg.cmd_q_wdg_timeout =
 775                 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
 776 
 777         snprintf(mvm->hw->wiphy->fw_version,
 778                  sizeof(mvm->hw->wiphy->fw_version),
 779                  "%s", fw->fw_version);
 780 
 781         /* Configure transport layer */
 782         iwl_trans_configure(mvm->trans, &trans_cfg);
 783 
 784         trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
 785         trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv;
 786         trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg;
 787         memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv,
 788                sizeof(trans->dbg.conf_tlv));
 789         trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv;
 790 
 791         trans->iml = mvm->fw->iml;
 792         trans->iml_len = mvm->fw->iml_len;
 793 
 794         /* set up notification wait support */
 795         iwl_notification_wait_init(&mvm->notif_wait);
 796 
 797         /* Init phy db */
 798         mvm->phy_db = iwl_phy_db_init(trans);
 799         if (!mvm->phy_db) {
 800                 IWL_ERR(mvm, "Cannot init phy_db\n");
 801                 goto out_free;
 802         }
 803 
 804         IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
 805                  mvm->cfg->name, mvm->trans->hw_rev);
 806 
 807         if (iwlwifi_mod_params.nvm_file)
 808                 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
 809         else
 810                 IWL_DEBUG_EEPROM(mvm->trans->dev,
 811                                  "working without external nvm file\n");
 812 
 813         err = iwl_trans_start_hw(mvm->trans);
 814         if (err)
 815                 goto out_free;
 816 
 817         mutex_lock(&mvm->mutex);
 818         err = iwl_run_init_mvm_ucode(mvm, true);
 819         if (err && err != -ERFKILL)
 820                 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER);
 821         if (!iwlmvm_mod_params.init_dbg || !err)
 822                 iwl_mvm_stop_device(mvm);
 823         mutex_unlock(&mvm->mutex);
 824         if (err < 0) {
 825                 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
 826                 goto out_free;
 827         }
 828 
 829         scan_size = iwl_mvm_scan_size(mvm);
 830 
 831         mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
 832         if (!mvm->scan_cmd)
 833                 goto out_free;
 834 
 835         /* Set EBS as successful as long as not stated otherwise by the FW. */
 836         mvm->last_ebs_successful = true;
 837 
 838         err = iwl_mvm_mac_setup_register(mvm);
 839         if (err)
 840                 goto out_free;
 841         mvm->hw_registered = true;
 842 
 843         min_backoff = iwl_mvm_min_backoff(mvm);
 844         iwl_mvm_thermal_initialize(mvm, min_backoff);
 845 
 846         iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
 847 
 848         if (!iwl_mvm_has_new_rx_stats_api(mvm))
 849                 memset(&mvm->rx_stats_v3, 0,
 850                        sizeof(struct mvm_statistics_rx_v3));
 851         else
 852                 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
 853 
 854         iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
 855 
 856         return op_mode;
 857 
 858  out_free:
 859         iwl_fw_flush_dumps(&mvm->fwrt);
 860         iwl_fw_runtime_free(&mvm->fwrt);
 861 
 862         if (iwlmvm_mod_params.init_dbg)
 863                 return op_mode;
 864         iwl_phy_db_free(mvm->phy_db);
 865         kfree(mvm->scan_cmd);
 866         iwl_trans_op_mode_leave(trans);
 867 
 868         ieee80211_free_hw(mvm->hw);
 869         return NULL;
 870 }
 871 
 872 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
 873 {
 874         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
 875         int i;
 876 
 877         iwl_mvm_leds_exit(mvm);
 878 
 879         iwl_mvm_thermal_exit(mvm);
 880 
 881         ieee80211_unregister_hw(mvm->hw);
 882 
 883         kfree(mvm->scan_cmd);
 884         kfree(mvm->mcast_filter_cmd);
 885         mvm->mcast_filter_cmd = NULL;
 886 
 887         kfree(mvm->error_recovery_buf);
 888         mvm->error_recovery_buf = NULL;
 889 
 890         iwl_trans_op_mode_leave(mvm->trans);
 891 
 892         iwl_phy_db_free(mvm->phy_db);
 893         mvm->phy_db = NULL;
 894 
 895         kfree(mvm->nvm_data);
 896         for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
 897                 kfree(mvm->nvm_sections[i].data);
 898 
 899         cancel_delayed_work_sync(&mvm->tcm.work);
 900 
 901         iwl_fw_runtime_free(&mvm->fwrt);
 902         mutex_destroy(&mvm->mutex);
 903 
 904         ieee80211_free_hw(mvm->hw);
 905 }
 906 
 907 struct iwl_async_handler_entry {
 908         struct list_head list;
 909         struct iwl_rx_cmd_buffer rxb;
 910         enum iwl_rx_handler_context context;
 911         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
 912 };
 913 
 914 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
 915 {
 916         struct iwl_async_handler_entry *entry, *tmp;
 917 
 918         spin_lock_bh(&mvm->async_handlers_lock);
 919         list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
 920                 iwl_free_rxb(&entry->rxb);
 921                 list_del(&entry->list);
 922                 kfree(entry);
 923         }
 924         spin_unlock_bh(&mvm->async_handlers_lock);
 925 }
 926 
 927 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
 928 {
 929         struct iwl_mvm *mvm =
 930                 container_of(wk, struct iwl_mvm, async_handlers_wk);
 931         struct iwl_async_handler_entry *entry, *tmp;
 932         LIST_HEAD(local_list);
 933 
 934         /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
 935 
 936         /*
 937          * Sync with Rx path with a lock. Remove all the entries from this list,
 938          * add them to a local one (lock free), and then handle them.
 939          */
 940         spin_lock_bh(&mvm->async_handlers_lock);
 941         list_splice_init(&mvm->async_handlers_list, &local_list);
 942         spin_unlock_bh(&mvm->async_handlers_lock);
 943 
 944         list_for_each_entry_safe(entry, tmp, &local_list, list) {
 945                 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
 946                         mutex_lock(&mvm->mutex);
 947                 entry->fn(mvm, &entry->rxb);
 948                 iwl_free_rxb(&entry->rxb);
 949                 list_del(&entry->list);
 950                 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
 951                         mutex_unlock(&mvm->mutex);
 952                 kfree(entry);
 953         }
 954 }
 955 
 956 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
 957                                             struct iwl_rx_packet *pkt)
 958 {
 959         struct iwl_fw_dbg_trigger_tlv *trig;
 960         struct iwl_fw_dbg_trigger_cmd *cmds_trig;
 961         int i;
 962 
 963         trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
 964                                      FW_DBG_TRIGGER_FW_NOTIF);
 965         if (!trig)
 966                 return;
 967 
 968         cmds_trig = (void *)trig->data;
 969 
 970         for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
 971                 /* don't collect on CMD 0 */
 972                 if (!cmds_trig->cmds[i].cmd_id)
 973                         break;
 974 
 975                 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
 976                     cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
 977                         continue;
 978 
 979                 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
 980                                         "CMD 0x%02x.%02x received",
 981                                         pkt->hdr.group_id, pkt->hdr.cmd);
 982                 break;
 983         }
 984 }
 985 
 986 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
 987                               struct iwl_rx_cmd_buffer *rxb,
 988                               struct iwl_rx_packet *pkt)
 989 {
 990         int i;
 991         union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt };
 992 
 993         iwl_dbg_tlv_time_point(&mvm->fwrt,
 994                                IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data);
 995         iwl_mvm_rx_check_trigger(mvm, pkt);
 996 
 997         /*
 998          * Do the notification wait before RX handlers so
 999          * even if the RX handler consumes the RXB we have
1000          * access to it in the notification wait entry.
1001          */
1002         iwl_notification_wait_notify(&mvm->notif_wait, pkt);
1003 
1004         for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
1005                 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
1006                 struct iwl_async_handler_entry *entry;
1007 
1008                 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
1009                         continue;
1010 
1011                 if (rx_h->context == RX_HANDLER_SYNC) {
1012                         rx_h->fn(mvm, rxb);
1013                         return;
1014                 }
1015 
1016                 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
1017                 /* we can't do much... */
1018                 if (!entry)
1019                         return;
1020 
1021                 entry->rxb._page = rxb_steal_page(rxb);
1022                 entry->rxb._offset = rxb->_offset;
1023                 entry->rxb._rx_page_order = rxb->_rx_page_order;
1024                 entry->fn = rx_h->fn;
1025                 entry->context = rx_h->context;
1026                 spin_lock(&mvm->async_handlers_lock);
1027                 list_add_tail(&entry->list, &mvm->async_handlers_list);
1028                 spin_unlock(&mvm->async_handlers_lock);
1029                 schedule_work(&mvm->async_handlers_wk);
1030                 break;
1031         }
1032 }
1033 
1034 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
1035                        struct napi_struct *napi,
1036                        struct iwl_rx_cmd_buffer *rxb)
1037 {
1038         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1039         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1040         u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1041 
1042         if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1043                 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
1044         else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
1045                 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
1046         else
1047                 iwl_mvm_rx_common(mvm, rxb, pkt);
1048 }
1049 
1050 static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
1051                           struct napi_struct *napi,
1052                           struct iwl_rx_cmd_buffer *rxb)
1053 {
1054         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1055         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1056         u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1057 
1058         if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1059                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
1060         else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1061                                          RX_QUEUES_NOTIFICATION)))
1062                 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0);
1063         else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
1064                 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
1065         else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE))
1066                 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0);
1067         else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF))
1068                 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0);
1069         else
1070                 iwl_mvm_rx_common(mvm, rxb, pkt);
1071 }
1072 
1073 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1074                              const struct iwl_device_cmd *cmd)
1075 {
1076         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1077 
1078         /*
1079          * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1080          * commands that need to block the Tx queues.
1081          */
1082         iwl_trans_block_txq_ptrs(mvm->trans, false);
1083 }
1084 
1085 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue)
1086 {
1087         return queue == mvm->aux_queue || queue == mvm->probe_queue ||
1088                 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue;
1089 }
1090 
1091 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode,
1092                                        int hw_queue, bool start)
1093 {
1094         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1095         struct ieee80211_sta *sta;
1096         struct ieee80211_txq *txq;
1097         struct iwl_mvm_txq *mvmtxq;
1098         int i;
1099         unsigned long tid_bitmap;
1100         struct iwl_mvm_sta *mvmsta;
1101         u8 sta_id;
1102 
1103         sta_id = iwl_mvm_has_new_tx_api(mvm) ?
1104                 mvm->tvqm_info[hw_queue].sta_id :
1105                 mvm->queue_info[hw_queue].ra_sta_id;
1106 
1107         if (WARN_ON_ONCE(sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)))
1108                 return;
1109 
1110         rcu_read_lock();
1111 
1112         sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1113         if (IS_ERR_OR_NULL(sta))
1114                 goto out;
1115         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1116 
1117         if (iwl_mvm_is_static_queue(mvm, hw_queue)) {
1118                 if (!start)
1119                         ieee80211_stop_queues(mvm->hw);
1120                 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1121                         ieee80211_wake_queues(mvm->hw);
1122 
1123                 goto out;
1124         }
1125 
1126         if (iwl_mvm_has_new_tx_api(mvm)) {
1127                 int tid = mvm->tvqm_info[hw_queue].txq_tid;
1128 
1129                 tid_bitmap = BIT(tid);
1130         } else {
1131                 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap;
1132         }
1133 
1134         for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1135                 int tid = i;
1136 
1137                 if (tid == IWL_MAX_TID_COUNT)
1138                         tid = IEEE80211_NUM_TIDS;
1139 
1140                 txq = sta->txq[tid];
1141                 mvmtxq = iwl_mvm_txq_from_mac80211(txq);
1142                 mvmtxq->stopped = !start;
1143 
1144                 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1145                         iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
1146         }
1147 
1148 out:
1149         rcu_read_unlock();
1150 }
1151 
1152 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1153 {
1154         iwl_mvm_queue_state_change(op_mode, hw_queue, false);
1155 }
1156 
1157 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1158 {
1159         iwl_mvm_queue_state_change(op_mode, hw_queue, true);
1160 }
1161 
1162 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm)
1163 {
1164         bool state = iwl_mvm_is_radio_killed(mvm);
1165 
1166         if (state)
1167                 wake_up(&mvm->rx_sync_waitq);
1168 
1169         wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
1170 }
1171 
1172 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1173 {
1174         if (state)
1175                 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1176         else
1177                 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1178 
1179         iwl_mvm_set_rfkill_state(mvm);
1180 }
1181 
1182 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
1183 {
1184         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1185         bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done);
1186         bool unified = iwl_mvm_has_unified_ucode(mvm);
1187 
1188         if (state)
1189                 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1190         else
1191                 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1192 
1193         iwl_mvm_set_rfkill_state(mvm);
1194 
1195          /* iwl_run_init_mvm_ucode is waiting for results, abort it. */
1196         if (rfkill_safe_init_done)
1197                 iwl_abort_notification_waits(&mvm->notif_wait);
1198 
1199         /*
1200          * Don't ask the transport to stop the firmware. We'll do it
1201          * after cfg80211 takes us down.
1202          */
1203         if (unified)
1204                 return false;
1205 
1206         /*
1207          * Stop the device if we run OPERATIONAL firmware or if we are in the
1208          * middle of the calibrations.
1209          */
1210         return state && rfkill_safe_init_done;
1211 }
1212 
1213 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1214 {
1215         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1216         struct ieee80211_tx_info *info;
1217 
1218         info = IEEE80211_SKB_CB(skb);
1219         iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1220         ieee80211_free_txskb(mvm->hw, skb);
1221 }
1222 
1223 struct iwl_mvm_reprobe {
1224         struct device *dev;
1225         struct work_struct work;
1226 };
1227 
1228 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1229 {
1230         struct iwl_mvm_reprobe *reprobe;
1231 
1232         reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1233         if (device_reprobe(reprobe->dev))
1234                 dev_err(reprobe->dev, "reprobe failed!\n");
1235         kfree(reprobe);
1236         module_put(THIS_MODULE);
1237 }
1238 
1239 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1240 {
1241         iwl_abort_notification_waits(&mvm->notif_wait);
1242         iwl_dbg_tlv_del_timers(mvm->trans);
1243 
1244         /*
1245          * This is a bit racy, but worst case we tell mac80211 about
1246          * a stopped/aborted scan when that was already done which
1247          * is not a problem. It is necessary to abort any os scan
1248          * here because mac80211 requires having the scan cleared
1249          * before restarting.
1250          * We'll reset the scan_status to NONE in restart cleanup in
1251          * the next start() call from mac80211. If restart isn't called
1252          * (no fw restart) scan status will stay busy.
1253          */
1254         iwl_mvm_report_scan_aborted(mvm);
1255 
1256         /*
1257          * If we're restarting already, don't cycle restarts.
1258          * If INIT fw asserted, it will likely fail again.
1259          * If WoWLAN fw asserted, don't restart either, mac80211
1260          * can't recover this since we're already half suspended.
1261          */
1262         if (!mvm->fw_restart && fw_error) {
1263                 iwl_fw_error_collect(&mvm->fwrt);
1264         } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1265                 struct iwl_mvm_reprobe *reprobe;
1266 
1267                 IWL_ERR(mvm,
1268                         "Firmware error during reconfiguration - reprobe!\n");
1269 
1270                 /*
1271                  * get a module reference to avoid doing this while unloading
1272                  * anyway and to avoid scheduling a work with code that's
1273                  * being removed.
1274                  */
1275                 if (!try_module_get(THIS_MODULE)) {
1276                         IWL_ERR(mvm, "Module is being unloaded - abort\n");
1277                         return;
1278                 }
1279 
1280                 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1281                 if (!reprobe) {
1282                         module_put(THIS_MODULE);
1283                         return;
1284                 }
1285                 reprobe->dev = mvm->trans->dev;
1286                 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1287                 schedule_work(&reprobe->work);
1288         } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1289                             &mvm->status)) {
1290                 IWL_ERR(mvm, "HW restart already requested, but not started\n");
1291         } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR &&
1292                    mvm->hw_registered &&
1293                    !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
1294                 if (mvm->fw->ucode_capa.error_log_size) {
1295                         u32 src_size = mvm->fw->ucode_capa.error_log_size;
1296                         u32 src_addr = mvm->fw->ucode_capa.error_log_addr;
1297                         u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC);
1298 
1299                         if (recover_buf) {
1300                                 mvm->error_recovery_buf = recover_buf;
1301                                 iwl_trans_read_mem_bytes(mvm->trans,
1302                                                          src_addr,
1303                                                          recover_buf,
1304                                                          src_size);
1305                         }
1306                 }
1307 
1308                 iwl_fw_error_collect(&mvm->fwrt);
1309 
1310                 if (fw_error && mvm->fw_restart > 0)
1311                         mvm->fw_restart--;
1312                 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1313                 ieee80211_restart_hw(mvm->hw);
1314         }
1315 }
1316 
1317 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
1318 {
1319         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1320 
1321         if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status))
1322                 iwl_mvm_dump_nic_error_log(mvm);
1323 
1324         iwl_mvm_nic_restart(mvm, true);
1325 }
1326 
1327 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1328 {
1329         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1330 
1331         WARN_ON(1);
1332         iwl_mvm_nic_restart(mvm, true);
1333 }
1334 
1335 #define IWL_MVM_COMMON_OPS                                      \
1336         /* these could be differentiated */                     \
1337         .async_cb = iwl_mvm_async_cb,                           \
1338         .queue_full = iwl_mvm_stop_sw_queue,                    \
1339         .queue_not_full = iwl_mvm_wake_sw_queue,                \
1340         .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,              \
1341         .free_skb = iwl_mvm_free_skb,                           \
1342         .nic_error = iwl_mvm_nic_error,                         \
1343         .cmd_queue_full = iwl_mvm_cmd_queue_full,               \
1344         .nic_config = iwl_mvm_nic_config,                       \
1345         /* as we only register one, these MUST be common! */    \
1346         .start = iwl_op_mode_mvm_start,                         \
1347         .stop = iwl_op_mode_mvm_stop
1348 
1349 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1350         IWL_MVM_COMMON_OPS,
1351         .rx = iwl_mvm_rx,
1352 };
1353 
1354 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1355                               struct napi_struct *napi,
1356                               struct iwl_rx_cmd_buffer *rxb,
1357                               unsigned int queue)
1358 {
1359         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1360         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1361         u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1362 
1363         if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
1364                 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
1365         else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1366                                          RX_QUEUES_NOTIFICATION)))
1367                 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue);
1368         else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1369                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1370 }
1371 
1372 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1373         IWL_MVM_COMMON_OPS,
1374         .rx = iwl_mvm_rx_mq,
1375         .rx_rss = iwl_mvm_rx_mq_rss,
1376 };
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/net/wireless/intel/iwlwifi/mvm/ops.c

DEFINITIONS
