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

   1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
   2 /*
   3  * Copyright (C) 2012-2014, 2018-2020 Intel Corporation
   4  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
   5  * Copyright (C) 2016-2017 Intel Deutschland GmbH
   6  */
   7 #include <linux/module.h>
   8 #include <linux/rtnetlink.h>
   9 #include <linux/vmalloc.h>
  10 #include <net/mac80211.h>
  11
  12 #include "fw/notif-wait.h"
  13 #include "iwl-trans.h"
  14 #include "iwl-op-mode.h"
  15 #include "fw/img.h"
  16 #include "iwl-debug.h"
  17 #include "iwl-drv.h"
  18 #include "iwl-modparams.h"
  19 #include "mvm.h"
  20 #include "iwl-phy-db.h"
  21 #include "iwl-eeprom-parse.h"
  22 #include "iwl-csr.h"
  23 #include "iwl-io.h"
  24 #include "iwl-prph.h"
  25 #include "rs.h"
  26 #include "fw/api/scan.h"
  27 #include "fw/api/rfi.h"
  28 #include "time-event.h"
  29 #include "fw-api.h"
  30 #include "fw/acpi.h"
  31 #include "fw/uefi.h"
  32
  33 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
  34 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  35 MODULE_LICENSE("GPL");
  36 MODULE_IMPORT_NS(IWLWIFI);
  37
  38 static const struct iwl_op_mode_ops iwl_mvm_ops;
  39 static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
  40
  41 struct iwl_mvm_mod_params iwlmvm_mod_params = {
  42         .power_scheme = IWL_POWER_SCHEME_BPS,
  43         /* rest of fields are 0 by default */
  44 };
  45
  46 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444);
  47 MODULE_PARM_DESC(init_dbg,
  48                  "set to true to debug an ASSERT in INIT fw (default: false");
  49 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444);
  50 MODULE_PARM_DESC(power_scheme,
  51                  "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
  52
  53 /*
  54  * module init and exit functions
  55  */
  56 static int __init iwl_mvm_init(void)
  57 {
  58         int ret;
  59
  60         ret = iwl_mvm_rate_control_register();
  61         if (ret) {
  62                 pr_err("Unable to register rate control algorithm: %d\n", ret);
  63                 return ret;
  64         }
  65
  66         ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
  67         if (ret)
  68                 pr_err("Unable to register MVM op_mode: %d\n", ret);
  69
  70         return ret;
  71 }
  72 module_init(iwl_mvm_init);
  73
  74 static void __exit iwl_mvm_exit(void)
  75 {
  76         iwl_opmode_deregister("iwlmvm");
  77         iwl_mvm_rate_control_unregister();
  78 }
  79 module_exit(iwl_mvm_exit);
  80
  81 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
  82 {
  83         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
  84         u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
  85         u32 reg_val;
  86         u32 phy_config = iwl_mvm_get_phy_config(mvm);
  87
  88         radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
  89                          FW_PHY_CFG_RADIO_TYPE_POS;
  90         radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
  91                          FW_PHY_CFG_RADIO_STEP_POS;
  92         radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
  93                          FW_PHY_CFG_RADIO_DASH_POS;
  94
  95         /* SKU control */
  96         reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev);
  97
  98         /* radio configuration */
  99         reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
 100         reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
 101         reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
 102
 103         WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
 104                  ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
 105
 106         /*
 107          * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC
 108          * sampling, and shouldn't be set to any non-zero value.
 109          * The same is supposed to be true of the other HW, but unsetting
 110          * them (such as the 7260) causes automatic tests to fail on seemingly
 111          * unrelated errors. Need to further investigate this, but for now
 112          * we'll separate cases.
 113          */
 114         if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000)
 115                 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
 116
 117         if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt))
 118                 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG;
 119
 120         iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
 121                                 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH |
 122                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
 123                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
 124                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
 125                                 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
 126                                 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI   |
 127                                 CSR_HW_IF_CONFIG_REG_D3_DEBUG,
 128                                 reg_val);
 129
 130         IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
 131                        radio_cfg_step, radio_cfg_dash);
 132
 133         /*
 134          * W/A : NIC is stuck in a reset state after Early PCIe power off
 135          * (PCIe power is lost before PERST# is asserted), causing ME FW
 136          * to lose ownership and not being able to obtain it back.
 137          */
 138         if (!mvm->trans->cfg->apmg_not_supported)
 139                 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
 140                                        APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
 141                                        ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
 142 }
 143
 144 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm,
 145                                      struct iwl_rx_cmd_buffer *rxb)
 146 {
 147         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 148         struct iwl_datapath_monitor_notif *notif = (void *)pkt->data;
 149         struct ieee80211_supported_band *sband;
 150         const struct ieee80211_sta_he_cap *he_cap;
 151         struct ieee80211_vif *vif;
 152
 153         if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA))
 154                 return;
 155
 156         vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id);
 157         if (!vif || vif->type != NL80211_IFTYPE_STATION)
 158                 return;
 159
 160         if (!vif->bss_conf.chandef.chan ||
 161             vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ ||
 162             vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40)
 163                 return;
 164
 165         if (!vif->cfg.assoc)
 166                 return;
 167
 168         /* this shouldn't happen *again*, ignore it */
 169         if (mvm->cca_40mhz_workaround)
 170                 return;
 171
 172         /*
 173          * We'll decrement this on disconnect - so set to 2 since we'll
 174          * still have to disconnect from the current AP first.
 175          */
 176         mvm->cca_40mhz_workaround = 2;
 177
 178         /*
 179          * This capability manipulation isn't really ideal, but it's the
 180          * easiest choice - otherwise we'd have to do some major changes
 181          * in mac80211 to support this, which isn't worth it. This does
 182          * mean that userspace may have outdated information, but that's
 183          * actually not an issue at all.
 184          */
 185         sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
 186
 187         WARN_ON(!sband->ht_cap.ht_supported);
 188         WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40));
 189         sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 190
 191         he_cap = ieee80211_get_he_iftype_cap(sband,
 192                                              ieee80211_vif_type_p2p(vif));
 193
 194         if (he_cap) {
 195                 /* we know that ours is writable */
 196                 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
 197
 198                 WARN_ON(!he->has_he);
 199                 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] &
 200                                 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G));
 201                 he->he_cap_elem.phy_cap_info[0] &=
 202                         ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
 203         }
 204
 205         ieee80211_disconnect(vif, true);
 206 }
 207
 208 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif)
 209 {
 210         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 211         struct iwl_mvm *mvm = mvmvif->mvm;
 212         enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC;
 213
 214         if (mvm->fw_static_smps_request &&
 215             vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 &&
 216             vif->bss_conf.he_support)
 217                 mode = IEEE80211_SMPS_STATIC;
 218
 219         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode);
 220 }
 221
 222 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac,
 223                                         struct ieee80211_vif *vif)
 224 {
 225         iwl_mvm_apply_fw_smps_request(vif);
 226 }
 227
 228 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm,
 229                                               struct iwl_rx_cmd_buffer *rxb)
 230 {
 231         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 232         struct iwl_thermal_dual_chain_request *req = (void *)pkt->data;
 233
 234         /*
 235          * We could pass it to the iterator data, but also need to remember
 236          * it for new interfaces that are added while in this state.
 237          */
 238         mvm->fw_static_smps_request =
 239                 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE);
 240         ieee80211_iterate_interfaces(mvm->hw,
 241                                      IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER,
 242                                      iwl_mvm_intf_dual_chain_req, NULL);
 243 }
 244
 245 /**
 246  * enum iwl_rx_handler_context context for Rx handler
 247  * @RX_HANDLER_SYNC : this means that it will be called in the Rx path
 248  *      which can't acquire mvm->mutex.
 249  * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex
 250  *      (and only in this case!), it should be set as ASYNC. In that case,
 251  *      it will be called from a worker with mvm->mutex held.
 252  * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the
 253  *      mutex itself, it will be called from a worker without mvm->mutex held.
 254  */
 255 enum iwl_rx_handler_context {
 256         RX_HANDLER_SYNC,
 257         RX_HANDLER_ASYNC_LOCKED,
 258         RX_HANDLER_ASYNC_UNLOCKED,
 259 };
 260
 261 /**
 262  * struct iwl_rx_handlers handler for FW notification
 263  * @cmd_id: command id
 264  * @min_size: minimum size to expect for the notification
 265  * @context: see &iwl_rx_handler_context
 266  * @fn: the function is called when notification is received
 267  */
 268 struct iwl_rx_handlers {
 269         u16 cmd_id, min_size;
 270         enum iwl_rx_handler_context context;
 271         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
 272 };
 273
 274 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context)              \
 275         { .cmd_id = _cmd_id, .fn = _fn, .context = _context, }
 276 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context)       \
 277         { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, }
 278 #define RX_HANDLER(_cmd_id, _fn, _context, _struct)             \
 279         { .cmd_id = _cmd_id, .fn = _fn,                         \
 280           .context = _context, .min_size = sizeof(_struct), }
 281 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct)      \
 282         { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn,             \
 283           .context = _context, .min_size = sizeof(_struct), }
 284
 285 /*
 286  * Handlers for fw notifications
 287  * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
 288  * This list should be in order of frequency for performance purposes.
 289  *
 290  * The handler can be one from three contexts, see &iwl_rx_handler_context
 291  */
 292 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
 293         RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC,
 294                    struct iwl_mvm_tx_resp),
 295         RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC,
 296                    struct iwl_mvm_ba_notif),
 297
 298         RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF,
 299                        iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC,
 300                        struct iwl_tlc_update_notif),
 301
 302         RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif,
 303                    RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif),
 304         RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif,
 305                            RX_HANDLER_ASYNC_LOCKED),
 306         RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics,
 307                            RX_HANDLER_ASYNC_LOCKED),
 308
 309         RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID,
 310                    iwl_mvm_window_status_notif, RX_HANDLER_SYNC,
 311                    struct iwl_ba_window_status_notif),
 312
 313         RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif,
 314                    RX_HANDLER_SYNC, struct iwl_time_event_notif),
 315         RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF,
 316                        iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC,
 317                        struct iwl_mvm_session_prot_notif),
 318         RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc,
 319                    RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif),
 320
 321         RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC,
 322                    struct iwl_mvm_eosp_notification),
 323
 324         RX_HANDLER(SCAN_ITERATION_COMPLETE,
 325                    iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC,
 326                    struct iwl_lmac_scan_complete_notif),
 327         RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
 328                    iwl_mvm_rx_lmac_scan_complete_notif,
 329                    RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete),
 330         RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION,
 331                            iwl_mvm_rx_scan_match_found,
 332                            RX_HANDLER_SYNC),
 333         RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
 334                    RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete),
 335         RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
 336                    iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC,
 337                    struct iwl_umac_scan_iter_complete_notif),
 338
 339         RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
 340                    RX_HANDLER_SYNC, struct iwl_missed_beacons_notif),
 341
 342         RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC,
 343                    struct iwl_error_resp),
 344         RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
 345                    iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC,
 346                    struct iwl_uapsd_misbehaving_ap_notif),
 347         RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif,
 348                            RX_HANDLER_ASYNC_LOCKED),
 349         RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
 350                                iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED),
 351         RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
 352                        iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC,
 353                        struct ct_kill_notif),
 354
 355         RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
 356                    RX_HANDLER_ASYNC_LOCKED,
 357                    struct iwl_tdls_channel_switch_notif),
 358         RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif,
 359                    RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1),
 360         RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS,
 361                        iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED,
 362                        struct iwl_ftm_responder_stats),
 363
 364         RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF,
 365                                iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED),
 366         RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF,
 367                                iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED),
 368
 369         RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF,
 370                        iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC,
 371                        struct iwl_mfu_assert_dump_notif),
 372         RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
 373                        iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC,
 374                        struct iwl_stored_beacon_notif_v2),
 375         RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF,
 376                        iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC,
 377                        struct iwl_mu_group_mgmt_notif),
 378         RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF,
 379                        iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC,
 380                        struct iwl_mvm_pm_state_notification),
 381         RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF,
 382                        iwl_mvm_probe_resp_data_notif,
 383                        RX_HANDLER_ASYNC_LOCKED,
 384                        struct iwl_probe_resp_data_notif),
 385         RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF,
 386                        iwl_mvm_channel_switch_start_notif,
 387                        RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif),
 388         RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF,
 389                        iwl_mvm_channel_switch_error_notif,
 390                        RX_HANDLER_ASYNC_UNLOCKED,
 391                        struct iwl_channel_switch_error_notif),
 392         RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF,
 393                        iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED,
 394                        struct iwl_datapath_monitor_notif),
 395
 396         RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST,
 397                        iwl_mvm_rx_thermal_dual_chain_req,
 398                        RX_HANDLER_ASYNC_LOCKED,
 399                        struct iwl_thermal_dual_chain_request),
 400
 401         RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF,
 402                        iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED,
 403                        struct iwl_rfi_deactivate_notif),
 404 };
 405 #undef RX_HANDLER
 406 #undef RX_HANDLER_GRP
 407
 408 /* Please keep this array *SORTED* by hex value.
 409  * Access is done through binary search
 410  */
 411 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
 412         HCMD_NAME(UCODE_ALIVE_NTFY),
 413         HCMD_NAME(REPLY_ERROR),
 414         HCMD_NAME(ECHO_CMD),
 415         HCMD_NAME(INIT_COMPLETE_NOTIF),
 416         HCMD_NAME(PHY_CONTEXT_CMD),
 417         HCMD_NAME(DBG_CFG),
 418         HCMD_NAME(SCAN_CFG_CMD),
 419         HCMD_NAME(SCAN_REQ_UMAC),
 420         HCMD_NAME(SCAN_ABORT_UMAC),
 421         HCMD_NAME(SCAN_COMPLETE_UMAC),
 422         HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
 423         HCMD_NAME(ADD_STA_KEY),
 424         HCMD_NAME(ADD_STA),
 425         HCMD_NAME(REMOVE_STA),
 426         HCMD_NAME(FW_GET_ITEM_CMD),
 427         HCMD_NAME(TX_CMD),
 428         HCMD_NAME(SCD_QUEUE_CFG),
 429         HCMD_NAME(TXPATH_FLUSH),
 430         HCMD_NAME(MGMT_MCAST_KEY),
 431         HCMD_NAME(WEP_KEY),
 432         HCMD_NAME(SHARED_MEM_CFG),
 433         HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
 434         HCMD_NAME(MAC_CONTEXT_CMD),
 435         HCMD_NAME(TIME_EVENT_CMD),
 436         HCMD_NAME(TIME_EVENT_NOTIFICATION),
 437         HCMD_NAME(BINDING_CONTEXT_CMD),
 438         HCMD_NAME(TIME_QUOTA_CMD),
 439         HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
 440         HCMD_NAME(LEDS_CMD),
 441         HCMD_NAME(LQ_CMD),
 442         HCMD_NAME(FW_PAGING_BLOCK_CMD),
 443         HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
 444         HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
 445         HCMD_NAME(HOT_SPOT_CMD),
 446         HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
 447         HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
 448         HCMD_NAME(BT_COEX_CI),
 449         HCMD_NAME(PHY_CONFIGURATION_CMD),
 450         HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
 451         HCMD_NAME(PHY_DB_CMD),
 452         HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
 453         HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
 454         HCMD_NAME(POWER_TABLE_CMD),
 455         HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
 456         HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
 457         HCMD_NAME(NVM_ACCESS_CMD),
 458         HCMD_NAME(BEACON_NOTIFICATION),
 459         HCMD_NAME(BEACON_TEMPLATE_CMD),
 460         HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
 461         HCMD_NAME(BT_CONFIG),
 462         HCMD_NAME(STATISTICS_CMD),
 463         HCMD_NAME(STATISTICS_NOTIFICATION),
 464         HCMD_NAME(EOSP_NOTIFICATION),
 465         HCMD_NAME(REDUCE_TX_POWER_CMD),
 466         HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
 467         HCMD_NAME(TDLS_CONFIG_CMD),
 468         HCMD_NAME(MAC_PM_POWER_TABLE),
 469         HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
 470         HCMD_NAME(MFUART_LOAD_NOTIFICATION),
 471         HCMD_NAME(RSS_CONFIG_CMD),
 472         HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
 473         HCMD_NAME(REPLY_RX_PHY_CMD),
 474         HCMD_NAME(REPLY_RX_MPDU_CMD),
 475         HCMD_NAME(BAR_FRAME_RELEASE),
 476         HCMD_NAME(FRAME_RELEASE),
 477         HCMD_NAME(BA_NOTIF),
 478         HCMD_NAME(MCC_UPDATE_CMD),
 479         HCMD_NAME(MCC_CHUB_UPDATE_CMD),
 480         HCMD_NAME(MARKER_CMD),
 481         HCMD_NAME(BT_PROFILE_NOTIFICATION),
 482         HCMD_NAME(MCAST_FILTER_CMD),
 483         HCMD_NAME(REPLY_SF_CFG_CMD),
 484         HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
 485         HCMD_NAME(D3_CONFIG_CMD),
 486         HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
 487         HCMD_NAME(OFFLOADS_QUERY_CMD),
 488         HCMD_NAME(MATCH_FOUND_NOTIFICATION),
 489         HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
 490         HCMD_NAME(WOWLAN_PATTERNS),
 491         HCMD_NAME(WOWLAN_CONFIGURATION),
 492         HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
 493         HCMD_NAME(WOWLAN_TKIP_PARAM),
 494         HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
 495         HCMD_NAME(WOWLAN_GET_STATUSES),
 496         HCMD_NAME(SCAN_ITERATION_COMPLETE),
 497         HCMD_NAME(D0I3_END_CMD),
 498         HCMD_NAME(LTR_CONFIG),
 499         HCMD_NAME(LDBG_CONFIG_CMD),
 500 };
 501
 502 /* Please keep this array *SORTED* by hex value.
 503  * Access is done through binary search
 504  */
 505 static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
 506         HCMD_NAME(SHARED_MEM_CFG_CMD),
 507         HCMD_NAME(INIT_EXTENDED_CFG_CMD),
 508         HCMD_NAME(FW_ERROR_RECOVERY_CMD),
 509         HCMD_NAME(RFI_CONFIG_CMD),
 510         HCMD_NAME(RFI_GET_FREQ_TABLE_CMD),
 511         HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD),
 512         HCMD_NAME(RFI_DEACTIVATE_NOTIF),
 513 };
 514
 515 /* Please keep this array *SORTED* by hex value.
 516  * Access is done through binary search
 517  */
 518 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
 519         HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD),
 520         HCMD_NAME(SESSION_PROTECTION_CMD),
 521         HCMD_NAME(SESSION_PROTECTION_NOTIF),
 522         HCMD_NAME(CHANNEL_SWITCH_START_NOTIF),
 523 };
 524
 525 /* Please keep this array *SORTED* by hex value.
 526  * Access is done through binary search
 527  */
 528 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
 529         HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
 530         HCMD_NAME(CTDP_CONFIG_CMD),
 531         HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
 532         HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD),
 533         HCMD_NAME(CT_KILL_NOTIFICATION),
 534         HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
 535 };
 536
 537 /* Please keep this array *SORTED* by hex value.
 538  * Access is done through binary search
 539  */
 540 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
 541         HCMD_NAME(DQA_ENABLE_CMD),
 542         HCMD_NAME(UPDATE_MU_GROUPS_CMD),
 543         HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
 544         HCMD_NAME(STA_HE_CTXT_CMD),
 545         HCMD_NAME(RLC_CONFIG_CMD),
 546         HCMD_NAME(RFH_QUEUE_CONFIG_CMD),
 547         HCMD_NAME(TLC_MNG_CONFIG_CMD),
 548         HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD),
 549         HCMD_NAME(SCD_QUEUE_CONFIG_CMD),
 550         HCMD_NAME(MONITOR_NOTIF),
 551         HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST),
 552         HCMD_NAME(STA_PM_NOTIF),
 553         HCMD_NAME(MU_GROUP_MGMT_NOTIF),
 554         HCMD_NAME(RX_QUEUES_NOTIFICATION),
 555 };
 556
 557 /* Please keep this array *SORTED* by hex value.
 558  * Access is done through binary search
 559  */
 560 static const struct iwl_hcmd_names iwl_mvm_scan_names[] = {
 561         HCMD_NAME(OFFLOAD_MATCH_INFO_NOTIF),
 562 };
 563
 564 /* Please keep this array *SORTED* by hex value.
 565  * Access is done through binary search
 566  */
 567 static const struct iwl_hcmd_names iwl_mvm_location_names[] = {
 568         HCMD_NAME(TOF_RANGE_REQ_CMD),
 569         HCMD_NAME(TOF_CONFIG_CMD),
 570         HCMD_NAME(TOF_RANGE_ABORT_CMD),
 571         HCMD_NAME(TOF_RANGE_REQ_EXT_CMD),
 572         HCMD_NAME(TOF_RESPONDER_CONFIG_CMD),
 573         HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD),
 574         HCMD_NAME(TOF_LC_NOTIF),
 575         HCMD_NAME(TOF_RESPONDER_STATS),
 576         HCMD_NAME(TOF_MCSI_DEBUG_NOTIF),
 577         HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF),
 578 };
 579
 580 /* Please keep this array *SORTED* by hex value.
 581  * Access is done through binary search
 582  */
 583 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
 584         HCMD_NAME(WOWLAN_WAKE_PKT_NOTIFICATION),
 585         HCMD_NAME(WOWLAN_INFO_NOTIFICATION),
 586         HCMD_NAME(D3_END_NOTIFICATION),
 587         HCMD_NAME(STORED_BEACON_NTF),
 588 };
 589
 590 /* Please keep this array *SORTED* by hex value.
 591  * Access is done through binary search
 592  */
 593 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = {
 594         HCMD_NAME(NVM_ACCESS_COMPLETE),
 595         HCMD_NAME(NVM_GET_INFO),
 596         HCMD_NAME(TAS_CONFIG),
 597 };
 598
 599 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
 600         [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 601         [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 602         [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
 603         [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
 604         [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
 605         [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
 606         [SCAN_GROUP] = HCMD_ARR(iwl_mvm_scan_names),
 607         [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names),
 608         [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
 609         [REGULATORY_AND_NVM_GROUP] =
 610                 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),
 611 };
 612
 613 /* this forward declaration can avoid to export the function */
 614 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
 615
 616 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm)
 617 {
 618         const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs;
 619         u64 dflt_pwr_limit;
 620
 621         if (!backoff)
 622                 return 0;
 623
 624         dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev);
 625
 626         while (backoff->pwr) {
 627                 if (dflt_pwr_limit >= backoff->pwr)
 628                         return backoff->backoff;
 629
 630                 backoff++;
 631         }
 632
 633         return 0;
 634 }
 635
 636 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
 637 {
 638         struct iwl_mvm *mvm =
 639                 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
 640         struct ieee80211_vif *tx_blocked_vif;
 641         struct iwl_mvm_vif *mvmvif;
 642
 643         mutex_lock(&mvm->mutex);
 644
 645         tx_blocked_vif =
 646                 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
 647                                           lockdep_is_held(&mvm->mutex));
 648
 649         if (!tx_blocked_vif)
 650                 goto unlock;
 651
 652         mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
 653         iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
 654         RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
 655 unlock:
 656         mutex_unlock(&mvm->mutex);
 657 }
 658
 659 static void iwl_mvm_fwrt_dump_start(void *ctx)
 660 {
 661         struct iwl_mvm *mvm = ctx;
 662
 663         mutex_lock(&mvm->mutex);
 664 }
 665
 666 static void iwl_mvm_fwrt_dump_end(void *ctx)
 667 {
 668         struct iwl_mvm *mvm = ctx;
 669
 670         mutex_unlock(&mvm->mutex);
 671 }
 672
 673 static bool iwl_mvm_fwrt_fw_running(void *ctx)
 674 {
 675         return iwl_mvm_firmware_running(ctx);
 676 }
 677
 678 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd)
 679 {
 680         struct iwl_mvm *mvm = (struct iwl_mvm *)ctx;
 681         int ret;
 682
 683         mutex_lock(&mvm->mutex);
 684         ret = iwl_mvm_send_cmd(mvm, host_cmd);
 685         mutex_unlock(&mvm->mutex);
 686
 687         return ret;
 688 }
 689
 690 static bool iwl_mvm_d3_debug_enable(void *ctx)
 691 {
 692         return IWL_MVM_D3_DEBUG;
 693 }
 694
 695 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
 696         .dump_start = iwl_mvm_fwrt_dump_start,
 697         .dump_end = iwl_mvm_fwrt_dump_end,
 698         .fw_running = iwl_mvm_fwrt_fw_running,
 699         .send_hcmd = iwl_mvm_fwrt_send_hcmd,
 700         .d3_debug_enable = iwl_mvm_d3_debug_enable,
 701 };
 702
 703 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm)
 704 {
 705         struct iwl_trans *trans = mvm->trans;
 706         int ret;
 707
 708         if (trans->csme_own) {
 709                 if (WARN(!mvm->mei_registered,
 710                          "csme is owner, but we aren't registered to iwlmei\n"))
 711                         goto get_nvm_from_fw;
 712
 713                 mvm->mei_nvm_data = iwl_mei_get_nvm();
 714                 if (mvm->mei_nvm_data) {
 715                         /*
 716                          * mvm->mei_nvm_data is set and because of that,
 717                          * we'll load the NVM from the FW when we'll get
 718                          * ownership.
 719                          */
 720                         mvm->nvm_data =
 721                                 iwl_parse_mei_nvm_data(trans, trans->cfg,
 722                                                        mvm->mei_nvm_data, mvm->fw);
 723                         return 0;
 724                 }
 725
 726                 IWL_ERR(mvm,
 727                         "Got a NULL NVM from CSME, trying to get it from the device\n");
 728         }
 729
 730 get_nvm_from_fw:
 731         rtnl_lock();
 732         wiphy_lock(mvm->hw->wiphy);
 733         mutex_lock(&mvm->mutex);
 734
 735         ret = iwl_trans_start_hw(mvm->trans);
 736         if (ret) {
 737                 mutex_unlock(&mvm->mutex);
 738                 wiphy_unlock(mvm->hw->wiphy);
 739                 rtnl_unlock();
 740                 return ret;
 741         }
 742
 743         ret = iwl_run_init_mvm_ucode(mvm);
 744         if (ret && ret != -ERFKILL)
 745                 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER);
 746         if (!ret && iwl_mvm_is_lar_supported(mvm)) {
 747                 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
 748                 ret = iwl_mvm_init_mcc(mvm);
 749         }
 750
 751         if (!iwlmvm_mod_params.init_dbg || !ret)
 752                 iwl_mvm_stop_device(mvm);
 753
 754         mutex_unlock(&mvm->mutex);
 755         wiphy_unlock(mvm->hw->wiphy);
 756         rtnl_unlock();
 757
 758         if (ret)
 759                 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
 760
 761         return ret;
 762 }
 763
 764 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm)
 765 {
 766         struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
 767         int ret;
 768
 769         iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
 770
 771         ret = iwl_mvm_mac_setup_register(mvm);
 772         if (ret)
 773                 return ret;
 774
 775         mvm->hw_registered = true;
 776
 777         iwl_mvm_dbgfs_register(mvm);
 778
 779         wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
 780                                          mvm->mei_rfkill_blocked,
 781                                          RFKILL_HARD_BLOCK_NOT_OWNER);
 782
 783         iwl_mvm_mei_set_sw_rfkill_state(mvm);
 784
 785         return 0;
 786 }
 787
 788 struct iwl_mvm_frob_txf_data {
 789         u8 *buf;
 790         size_t buflen;
 791 };
 792
 793 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw,
 794                                       struct ieee80211_vif *vif,
 795                                       struct ieee80211_sta *sta,
 796                                       struct ieee80211_key_conf *key,
 797                                       void *data)
 798 {
 799         struct iwl_mvm_frob_txf_data *txf = data;
 800         u8 keylen, match, matchend;
 801         u8 *keydata;
 802         size_t i;
 803
 804         switch (key->cipher) {
 805         case WLAN_CIPHER_SUITE_CCMP:
 806                 keydata = key->key;
 807                 keylen = key->keylen;
 808                 break;
 809         case WLAN_CIPHER_SUITE_WEP40:
 810         case WLAN_CIPHER_SUITE_WEP104:
 811         case WLAN_CIPHER_SUITE_TKIP:
 812                 /*
 813                  * WEP has short keys which might show up in the payload,
 814                  * and then you can deduce the key, so in this case just
 815                  * remove all FIFO data.
 816                  * For TKIP, we don't know the phase 2 keys here, so same.
 817                  */
 818                 memset(txf->buf, 0xBB, txf->buflen);
 819                 return;
 820         default:
 821                 return;
 822         }
 823
 824         /* scan for key material and clear it out */
 825         match = 0;
 826         for (i = 0; i < txf->buflen; i++) {
 827                 if (txf->buf[i] != keydata[match]) {
 828                         match = 0;
 829                         continue;
 830                 }
 831                 match++;
 832                 if (match == keylen) {
 833                         memset(txf->buf + i - keylen, 0xAA, keylen);
 834                         match = 0;
 835                 }
 836         }
 837
 838         /* we're dealing with a FIFO, so check wrapped around data */
 839         matchend = match;
 840         for (i = 0; match && i < keylen - match; i++) {
 841                 if (txf->buf[i] != keydata[match])
 842                         break;
 843                 match++;
 844                 if (match == keylen) {
 845                         memset(txf->buf, 0xAA, i + 1);
 846                         memset(txf->buf + txf->buflen - matchend, 0xAA,
 847                                matchend);
 848                         break;
 849                 }
 850         }
 851 }
 852
 853 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen)
 854 {
 855         struct iwl_mvm_frob_txf_data txf = {
 856                 .buf = buf,
 857                 .buflen = buflen,
 858         };
 859         struct iwl_mvm *mvm = ctx;
 860
 861         /* embedded key material exists only on old API */
 862         if (iwl_mvm_has_new_tx_api(mvm))
 863                 return;
 864
 865         rcu_read_lock();
 866         ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf);
 867         rcu_read_unlock();
 868 }
 869
 870 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len)
 871 {
 872         /* we only use wide headers for commands */
 873         struct iwl_cmd_header_wide *hdr = hcmd;
 874         unsigned int frob_start = sizeof(*hdr), frob_end = 0;
 875
 876         if (len < sizeof(hdr))
 877                 return;
 878
 879         /* all the commands we care about are in LONG_GROUP */
 880         if (hdr->group_id != LONG_GROUP)
 881                 return;
 882
 883         switch (hdr->cmd) {
 884         case WEP_KEY:
 885         case WOWLAN_TKIP_PARAM:
 886         case WOWLAN_KEK_KCK_MATERIAL:
 887         case ADD_STA_KEY:
 888                 /*
 889                  * blank out everything here, easier than dealing
 890                  * with the various versions of the command
 891                  */
 892                 frob_end = INT_MAX;
 893                 break;
 894         case MGMT_MCAST_KEY:
 895                 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
 896                 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) !=
 897                              offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
 898
 899                 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
 900                 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) <
 901                              offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
 902                 break;
 903         }
 904
 905         if (frob_start >= frob_end)
 906                 return;
 907
 908         if (frob_end > len)
 909                 frob_end = len;
 910
 911         memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start);
 912 }
 913
 914 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen)
 915 {
 916         const struct iwl_dump_exclude *excl;
 917         struct iwl_mvm *mvm = ctx;
 918         int i;
 919
 920         switch (mvm->fwrt.cur_fw_img) {
 921         case IWL_UCODE_INIT:
 922         default:
 923                 /* not relevant */
 924                 return;
 925         case IWL_UCODE_REGULAR:
 926         case IWL_UCODE_REGULAR_USNIFFER:
 927                 excl = mvm->fw->dump_excl;
 928                 break;
 929         case IWL_UCODE_WOWLAN:
 930                 excl = mvm->fw->dump_excl_wowlan;
 931                 break;
 932         }
 933
 934         BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) !=
 935                      sizeof(mvm->fw->dump_excl_wowlan));
 936
 937         for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) {
 938                 u32 start, end;
 939
 940                 if (!excl[i].addr || !excl[i].size)
 941                         continue;
 942
 943                 start = excl[i].addr;
 944                 end = start + excl[i].size;
 945
 946                 if (end <= mem_addr || start >= mem_addr + buflen)
 947                         continue;
 948
 949                 if (start < mem_addr)
 950                         start = mem_addr;
 951
 952                 if (end > mem_addr + buflen)
 953                         end = mem_addr + buflen;
 954
 955                 memset((u8 *)mem + start - mem_addr, 0xAA, end - start);
 956         }
 957 }
 958
 959 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = {
 960         .frob_txf = iwl_mvm_frob_txf,
 961         .frob_hcmd = iwl_mvm_frob_hcmd,
 962         .frob_mem = iwl_mvm_frob_mem,
 963 };
 964
 965 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info)
 966 {
 967         struct iwl_mvm *mvm = priv;
 968         struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info;
 969
 970         /*
 971          * This is protected by the guarantee that this function will not be
 972          * called twice on two different threads
 973          */
 974         prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true);
 975
 976         curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL);
 977         if (!curr_conn_info)
 978                 return;
 979
 980         curr_conn_info->conn_info = *conn_info;
 981
 982         rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info);
 983
 984         if (prev_conn_info)
 985                 kfree_rcu(prev_conn_info, rcu_head);
 986 }
 987
 988 static void iwl_mvm_mei_rfkill(void *priv, bool blocked)
 989 {
 990         struct iwl_mvm *mvm = priv;
 991
 992         mvm->mei_rfkill_blocked = blocked;
 993         if (!mvm->hw_registered)
 994                 return;
 995
 996         wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
 997                                          mvm->mei_rfkill_blocked,
 998                                          RFKILL_HARD_BLOCK_NOT_OWNER);
 999 }
1000
1001 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden)
1002 {
1003         struct iwl_mvm *mvm = priv;
1004
1005         if (!mvm->hw_registered || !mvm->csme_vif)
1006                 return;
1007
1008         iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden);
1009 }
1010
1011 static void iwl_mvm_sap_connected_wk(struct work_struct *wk)
1012 {
1013         struct iwl_mvm *mvm =
1014                 container_of(wk, struct iwl_mvm, sap_connected_wk);
1015         int ret;
1016
1017         ret = iwl_mvm_start_get_nvm(mvm);
1018         if (ret)
1019                 goto out_free;
1020
1021         ret = iwl_mvm_start_post_nvm(mvm);
1022         if (ret)
1023                 goto out_free;
1024
1025         return;
1026
1027 out_free:
1028         IWL_ERR(mvm, "Couldn't get started...\n");
1029         iwl_mei_start_unregister();
1030         iwl_mei_unregister_complete();
1031         iwl_fw_flush_dumps(&mvm->fwrt);
1032         iwl_mvm_thermal_exit(mvm);
1033         iwl_fw_runtime_free(&mvm->fwrt);
1034         iwl_phy_db_free(mvm->phy_db);
1035         kfree(mvm->scan_cmd);
1036         iwl_trans_op_mode_leave(mvm->trans);
1037         kfree(mvm->nvm_data);
1038         kfree(mvm->mei_nvm_data);
1039
1040         ieee80211_free_hw(mvm->hw);
1041 }
1042
1043 static void iwl_mvm_mei_sap_connected(void *priv)
1044 {
1045         struct iwl_mvm *mvm = priv;
1046
1047         if (!mvm->hw_registered)
1048                 schedule_work(&mvm->sap_connected_wk);
1049 }
1050
1051 static void iwl_mvm_mei_nic_stolen(void *priv)
1052 {
1053         struct iwl_mvm *mvm = priv;
1054
1055         rtnl_lock();
1056         cfg80211_shutdown_all_interfaces(mvm->hw->wiphy);
1057         rtnl_unlock();
1058 }
1059
1060 static const struct iwl_mei_ops mei_ops = {
1061         .me_conn_status = iwl_mvm_me_conn_status,
1062         .rfkill = iwl_mvm_mei_rfkill,
1063         .roaming_forbidden = iwl_mvm_mei_roaming_forbidden,
1064         .sap_connected = iwl_mvm_mei_sap_connected,
1065         .nic_stolen = iwl_mvm_mei_nic_stolen,
1066 };
1067
1068 static struct iwl_op_mode *
1069 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
1070                       const struct iwl_fw *fw, struct dentry *dbgfs_dir)
1071 {
1072         struct ieee80211_hw *hw;
1073         struct iwl_op_mode *op_mode;
1074         struct iwl_mvm *mvm;
1075         struct iwl_trans_config trans_cfg = {};
1076         static const u8 no_reclaim_cmds[] = {
1077                 TX_CMD,
1078         };
1079         size_t scan_size;
1080         u32 min_backoff;
1081         struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
1082
1083         /*
1084          * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station
1085          * index all over the driver - check that its value corresponds to the
1086          * array size.
1087          */
1088         BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) !=
1089                      IWL_MVM_STATION_COUNT_MAX);
1090
1091         /********************************
1092          * 1. Allocating and configuring HW data
1093          ********************************/
1094         hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
1095                                 sizeof(struct iwl_mvm),
1096                                 &iwl_mvm_hw_ops);
1097         if (!hw)
1098                 return NULL;
1099
1100         hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
1101
1102         if (cfg->max_tx_agg_size)
1103                 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
1104         else
1105                 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
1106
1107         op_mode = hw->priv;
1108
1109         mvm = IWL_OP_MODE_GET_MVM(op_mode);
1110         mvm->dev = trans->dev;
1111         mvm->trans = trans;
1112         mvm->cfg = cfg;
1113         mvm->fw = fw;
1114         mvm->hw = hw;
1115
1116         iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm,
1117                             &iwl_mvm_sanitize_ops, mvm, dbgfs_dir);
1118
1119         iwl_mvm_get_acpi_tables(mvm);
1120         iwl_uefi_get_sgom_table(trans, &mvm->fwrt);
1121
1122         mvm->init_status = 0;
1123
1124         if (iwl_mvm_has_new_rx_api(mvm)) {
1125                 op_mode->ops = &iwl_mvm_ops_mq;
1126                 trans->rx_mpdu_cmd_hdr_size =
1127                         (trans->trans_cfg->device_family >=
1128                          IWL_DEVICE_FAMILY_AX210) ?
1129                         sizeof(struct iwl_rx_mpdu_desc) :
1130                         IWL_RX_DESC_SIZE_V1;
1131         } else {
1132                 op_mode->ops = &iwl_mvm_ops;
1133                 trans->rx_mpdu_cmd_hdr_size =
1134                         sizeof(struct iwl_rx_mpdu_res_start);
1135
1136                 if (WARN_ON(trans->num_rx_queues > 1))
1137                         goto out_free;
1138         }
1139
1140         mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
1141
1142         if (iwl_mvm_has_new_tx_api(mvm)) {
1143                 /*
1144                  * If we have the new TX/queue allocation API initialize them
1145                  * all to invalid numbers. We'll rewrite the ones that we need
1146                  * later, but that doesn't happen for all of them all of the
1147                  * time (e.g. P2P Device is optional), and if a dynamic queue
1148                  * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then
1149                  * iwl_mvm_is_static_queue() erroneously returns true, and we
1150                  * might have things getting stuck.
1151                  */
1152                 mvm->aux_queue = IWL_MVM_INVALID_QUEUE;
1153                 mvm->snif_queue = IWL_MVM_INVALID_QUEUE;
1154                 mvm->probe_queue = IWL_MVM_INVALID_QUEUE;
1155                 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE;
1156         } else {
1157                 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
1158                 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE;
1159                 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
1160                 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
1161         }
1162
1163         mvm->sf_state = SF_UNINIT;
1164         if (iwl_mvm_has_unified_ucode(mvm))
1165                 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR);
1166         else
1167                 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT);
1168         mvm->drop_bcn_ap_mode = true;
1169
1170         mutex_init(&mvm->mutex);
1171         spin_lock_init(&mvm->async_handlers_lock);
1172         INIT_LIST_HEAD(&mvm->time_event_list);
1173         INIT_LIST_HEAD(&mvm->aux_roc_te_list);
1174         INIT_LIST_HEAD(&mvm->async_handlers_list);
1175         spin_lock_init(&mvm->time_event_lock);
1176         INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list);
1177         INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list);
1178         INIT_LIST_HEAD(&mvm->resp_pasn_list);
1179
1180         INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
1181         INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
1182         INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk);
1183         INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
1184         INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
1185         INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
1186         INIT_LIST_HEAD(&mvm->add_stream_txqs);
1187
1188         init_waitqueue_head(&mvm->rx_sync_waitq);
1189
1190         mvm->queue_sync_state = 0;
1191
1192         SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
1193
1194         spin_lock_init(&mvm->tcm.lock);
1195         INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work);
1196         mvm->tcm.ts = jiffies;
1197         mvm->tcm.ll_ts = jiffies;
1198         mvm->tcm.uapsd_nonagg_ts = jiffies;
1199
1200         INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
1201
1202         mvm->cmd_ver.range_resp =
1203                 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP,
1204                                         TOF_RANGE_RESPONSE_NOTIF, 5);
1205         /* we only support up to version 9 */
1206         if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9))
1207                 goto out_free;
1208
1209         /*
1210          * Populate the state variables that the transport layer needs
1211          * to know about.
1212          */
1213         trans_cfg.op_mode = op_mode;
1214         trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
1215         trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
1216
1217         switch (iwlwifi_mod_params.amsdu_size) {
1218         case IWL_AMSDU_DEF:
1219                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1220                 break;
1221         case IWL_AMSDU_4K:
1222                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1223                 break;
1224         case IWL_AMSDU_8K:
1225                 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
1226                 break;
1227         case IWL_AMSDU_12K:
1228                 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
1229                 break;
1230         default:
1231                 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
1232                        iwlwifi_mod_params.amsdu_size);
1233                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1234         }
1235
1236         trans->wide_cmd_header = true;
1237         trans_cfg.bc_table_dword =
1238                 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210;
1239
1240         trans_cfg.command_groups = iwl_mvm_groups;
1241         trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
1242
1243         trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
1244         trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
1245         trans_cfg.scd_set_active = true;
1246
1247         trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
1248                                           driver_data[2]);
1249
1250         /* Set a short watchdog for the command queue */
1251         trans_cfg.cmd_q_wdg_timeout =
1252                 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
1253
1254         snprintf(mvm->hw->wiphy->fw_version,
1255                  sizeof(mvm->hw->wiphy->fw_version),
1256                  "%s", fw->fw_version);
1257
1258         trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa,
1259                                                    IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE);
1260
1261         trans_cfg.queue_alloc_cmd_ver =
1262                 iwl_fw_lookup_cmd_ver(mvm->fw,
1263                                       WIDE_ID(DATA_PATH_GROUP,
1264                                               SCD_QUEUE_CONFIG_CMD),
1265                                       0);
1266         mvm->sta_remove_requires_queue_remove =
1267                 trans_cfg.queue_alloc_cmd_ver > 0;
1268
1269         /* Configure transport layer */
1270         iwl_trans_configure(mvm->trans, &trans_cfg);
1271
1272         trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
1273         trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv;
1274         trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg;
1275         memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv,
1276                sizeof(trans->dbg.conf_tlv));
1277         trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv;
1278
1279         trans->iml = mvm->fw->iml;
1280         trans->iml_len = mvm->fw->iml_len;
1281
1282         /* set up notification wait support */
1283         iwl_notification_wait_init(&mvm->notif_wait);
1284
1285         /* Init phy db */
1286         mvm->phy_db = iwl_phy_db_init(trans);
1287         if (!mvm->phy_db) {
1288                 IWL_ERR(mvm, "Cannot init phy_db\n");
1289                 goto out_free;
1290         }
1291
1292         IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
1293                  mvm->trans->name, mvm->trans->hw_rev);
1294
1295         if (iwlwifi_mod_params.nvm_file)
1296                 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
1297         else
1298                 IWL_DEBUG_EEPROM(mvm->trans->dev,
1299                                  "working without external nvm file\n");
1300
1301         scan_size = iwl_mvm_scan_size(mvm);
1302
1303         mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
1304         if (!mvm->scan_cmd)
1305                 goto out_free;
1306         mvm->scan_cmd_size = scan_size;
1307
1308         /* invalidate ids to prevent accidental removal of sta_id 0 */
1309         mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA;
1310         mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA;
1311
1312         /* Set EBS as successful as long as not stated otherwise by the FW. */
1313         mvm->last_ebs_successful = true;
1314
1315         min_backoff = iwl_mvm_min_backoff(mvm);
1316         iwl_mvm_thermal_initialize(mvm, min_backoff);
1317
1318         if (!iwl_mvm_has_new_rx_stats_api(mvm))
1319                 memset(&mvm->rx_stats_v3, 0,
1320                        sizeof(struct mvm_statistics_rx_v3));
1321         else
1322                 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
1323
1324         mvm->debugfs_dir = dbgfs_dir;
1325
1326         mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops);
1327
1328         if (iwl_mvm_start_get_nvm(mvm)) {
1329                 /*
1330                  * Getting NVM failed while CSME is the owner, but we are
1331                  * registered to MEI, we'll get the NVM later when it'll be
1332                  * possible to get it from CSME.
1333                  */
1334                 if (trans->csme_own && mvm->mei_registered)
1335                         return op_mode;
1336
1337                 goto out_thermal_exit;
1338         }
1339
1340
1341         if (iwl_mvm_start_post_nvm(mvm))
1342                 goto out_thermal_exit;
1343
1344         return op_mode;
1345
1346  out_thermal_exit:
1347         iwl_mvm_thermal_exit(mvm);
1348         if (mvm->mei_registered) {
1349                 iwl_mei_start_unregister();
1350                 iwl_mei_unregister_complete();
1351         }
1352  out_free:
1353         iwl_fw_flush_dumps(&mvm->fwrt);
1354         iwl_fw_runtime_free(&mvm->fwrt);
1355
1356         if (iwlmvm_mod_params.init_dbg)
1357                 return op_mode;
1358         iwl_phy_db_free(mvm->phy_db);
1359         kfree(mvm->scan_cmd);
1360         iwl_trans_op_mode_leave(trans);
1361
1362         ieee80211_free_hw(mvm->hw);
1363         return NULL;
1364 }
1365
1366 void iwl_mvm_stop_device(struct iwl_mvm *mvm)
1367 {
1368         lockdep_assert_held(&mvm->mutex);
1369
1370         iwl_fw_cancel_timestamp(&mvm->fwrt);
1371
1372         clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1373
1374         iwl_fw_dbg_stop_sync(&mvm->fwrt);
1375         iwl_trans_stop_device(mvm->trans);
1376         iwl_free_fw_paging(&mvm->fwrt);
1377         iwl_fw_dump_conf_clear(&mvm->fwrt);
1378         iwl_mvm_mei_device_state(mvm, false);
1379 }
1380
1381 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
1382 {
1383         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1384         int i;
1385
1386         if (mvm->mei_registered) {
1387                 rtnl_lock();
1388                 iwl_mei_set_netdev(NULL);
1389                 rtnl_unlock();
1390                 iwl_mei_start_unregister();
1391         }
1392
1393         /*
1394          * After we unregister from mei, the worker can't be scheduled
1395          * anymore.
1396          */
1397         cancel_work_sync(&mvm->sap_connected_wk);
1398
1399         iwl_mvm_leds_exit(mvm);
1400
1401         iwl_mvm_thermal_exit(mvm);
1402
1403         /*
1404          * If we couldn't get ownership on the device and we couldn't
1405          * get the NVM from CSME, we haven't registered to mac80211.
1406          * In that case, we didn't fail op_mode_start, because we are
1407          * waiting for CSME to allow us to get the NVM to register to
1408          * mac80211. If that didn't happen, we haven't registered to
1409          * mac80211, hence the if below.
1410          */
1411         if (mvm->hw_registered)
1412                 ieee80211_unregister_hw(mvm->hw);
1413
1414         kfree(mvm->scan_cmd);
1415         kfree(mvm->mcast_filter_cmd);
1416         mvm->mcast_filter_cmd = NULL;
1417
1418         kfree(mvm->error_recovery_buf);
1419         mvm->error_recovery_buf = NULL;
1420
1421         iwl_trans_op_mode_leave(mvm->trans);
1422
1423         iwl_phy_db_free(mvm->phy_db);
1424         mvm->phy_db = NULL;
1425
1426         kfree(mvm->nvm_data);
1427         kfree(mvm->mei_nvm_data);
1428         kfree(rcu_access_pointer(mvm->csme_conn_info));
1429         kfree(mvm->temp_nvm_data);
1430         for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
1431                 kfree(mvm->nvm_sections[i].data);
1432
1433         cancel_delayed_work_sync(&mvm->tcm.work);
1434
1435         iwl_fw_runtime_free(&mvm->fwrt);
1436         mutex_destroy(&mvm->mutex);
1437
1438         if (mvm->mei_registered)
1439                 iwl_mei_unregister_complete();
1440
1441         ieee80211_free_hw(mvm->hw);
1442 }
1443
1444 struct iwl_async_handler_entry {
1445         struct list_head list;
1446         struct iwl_rx_cmd_buffer rxb;
1447         enum iwl_rx_handler_context context;
1448         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1449 };
1450
1451 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
1452 {
1453         struct iwl_async_handler_entry *entry, *tmp;
1454
1455         spin_lock_bh(&mvm->async_handlers_lock);
1456         list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
1457                 iwl_free_rxb(&entry->rxb);
1458                 list_del(&entry->list);
1459                 kfree(entry);
1460         }
1461         spin_unlock_bh(&mvm->async_handlers_lock);
1462 }
1463
1464 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
1465 {
1466         struct iwl_mvm *mvm =
1467                 container_of(wk, struct iwl_mvm, async_handlers_wk);
1468         struct iwl_async_handler_entry *entry, *tmp;
1469         LIST_HEAD(local_list);
1470
1471         /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
1472
1473         /*
1474          * Sync with Rx path with a lock. Remove all the entries from this list,
1475          * add them to a local one (lock free), and then handle them.
1476          */
1477         spin_lock_bh(&mvm->async_handlers_lock);
1478         list_splice_init(&mvm->async_handlers_list, &local_list);
1479         spin_unlock_bh(&mvm->async_handlers_lock);
1480
1481         list_for_each_entry_safe(entry, tmp, &local_list, list) {
1482                 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1483                         mutex_lock(&mvm->mutex);
1484                 entry->fn(mvm, &entry->rxb);
1485                 iwl_free_rxb(&entry->rxb);
1486                 list_del(&entry->list);
1487                 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1488                         mutex_unlock(&mvm->mutex);
1489                 kfree(entry);
1490         }
1491 }
1492
1493 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
1494                                             struct iwl_rx_packet *pkt)
1495 {
1496         struct iwl_fw_dbg_trigger_tlv *trig;
1497         struct iwl_fw_dbg_trigger_cmd *cmds_trig;
1498         int i;
1499
1500         trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
1501                                      FW_DBG_TRIGGER_FW_NOTIF);
1502         if (!trig)
1503                 return;
1504
1505         cmds_trig = (void *)trig->data;
1506
1507         for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
1508                 /* don't collect on CMD 0 */
1509                 if (!cmds_trig->cmds[i].cmd_id)
1510                         break;
1511
1512                 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
1513                     cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
1514                         continue;
1515
1516                 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
1517                                         "CMD 0x%02x.%02x received",
1518                                         pkt->hdr.group_id, pkt->hdr.cmd);
1519                 break;
1520         }
1521 }
1522
1523 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
1524                               struct iwl_rx_cmd_buffer *rxb,
1525                               struct iwl_rx_packet *pkt)
1526 {
1527         unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);
1528         int i;
1529         union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt };
1530
1531         iwl_dbg_tlv_time_point(&mvm->fwrt,
1532                                IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data);
1533         iwl_mvm_rx_check_trigger(mvm, pkt);
1534
1535         /*
1536          * Do the notification wait before RX handlers so
1537          * even if the RX handler consumes the RXB we have
1538          * access to it in the notification wait entry.
1539          */
1540         iwl_notification_wait_notify(&mvm->notif_wait, pkt);
1541
1542         for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
1543                 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
1544                 struct iwl_async_handler_entry *entry;
1545
1546                 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
1547                         continue;
1548
1549                 if (unlikely(pkt_len < rx_h->min_size))
1550                         return;
1551
1552                 if (rx_h->context == RX_HANDLER_SYNC) {
1553                         rx_h->fn(mvm, rxb);
1554                         return;
1555                 }
1556
1557                 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
1558                 /* we can't do much... */
1559                 if (!entry)
1560                         return;
1561
1562                 entry->rxb._page = rxb_steal_page(rxb);
1563                 entry->rxb._offset = rxb->_offset;
1564                 entry->rxb._rx_page_order = rxb->_rx_page_order;
1565                 entry->fn = rx_h->fn;
1566                 entry->context = rx_h->context;
1567                 spin_lock(&mvm->async_handlers_lock);
1568                 list_add_tail(&entry->list, &mvm->async_handlers_list);
1569                 spin_unlock(&mvm->async_handlers_lock);
1570                 schedule_work(&mvm->async_handlers_wk);
1571                 break;
1572         }
1573 }
1574
1575 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
1576                        struct napi_struct *napi,
1577                        struct iwl_rx_cmd_buffer *rxb)
1578 {
1579         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1580         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1581         u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1582
1583         if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1584                 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
1585         else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
1586                 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
1587         else
1588                 iwl_mvm_rx_common(mvm, rxb, pkt);
1589 }
1590
1591 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
1592                    struct napi_struct *napi,
1593                    struct iwl_rx_cmd_buffer *rxb)
1594 {
1595         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1596         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1597         u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1598
1599         if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1600                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
1601         else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1602                                          RX_QUEUES_NOTIFICATION)))
1603                 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0);
1604         else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
1605                 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
1606         else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE))
1607                 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0);
1608         else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF))
1609                 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0);
1610         else
1611                 iwl_mvm_rx_common(mvm, rxb, pkt);
1612 }
1613
1614 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1615                              const struct iwl_device_cmd *cmd)
1616 {
1617         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1618
1619         /*
1620          * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1621          * commands that need to block the Tx queues.
1622          */
1623         iwl_trans_block_txq_ptrs(mvm->trans, false);
1624 }
1625
1626 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue)
1627 {
1628         return queue == mvm->aux_queue || queue == mvm->probe_queue ||
1629                 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue;
1630 }
1631
1632 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode,
1633                                        int hw_queue, bool start)
1634 {
1635         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1636         struct ieee80211_sta *sta;
1637         struct ieee80211_txq *txq;
1638         struct iwl_mvm_txq *mvmtxq;
1639         int i;
1640         unsigned long tid_bitmap;
1641         struct iwl_mvm_sta *mvmsta;
1642         u8 sta_id;
1643
1644         sta_id = iwl_mvm_has_new_tx_api(mvm) ?
1645                 mvm->tvqm_info[hw_queue].sta_id :
1646                 mvm->queue_info[hw_queue].ra_sta_id;
1647
1648         if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations))
1649                 return;
1650
1651         rcu_read_lock();
1652
1653         sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1654         if (IS_ERR_OR_NULL(sta))
1655                 goto out;
1656         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1657
1658         if (iwl_mvm_is_static_queue(mvm, hw_queue)) {
1659                 if (!start)
1660                         ieee80211_stop_queues(mvm->hw);
1661                 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1662                         ieee80211_wake_queues(mvm->hw);
1663
1664                 goto out;
1665         }
1666
1667         if (iwl_mvm_has_new_tx_api(mvm)) {
1668                 int tid = mvm->tvqm_info[hw_queue].txq_tid;
1669
1670                 tid_bitmap = BIT(tid);
1671         } else {
1672                 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap;
1673         }
1674
1675         for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1676                 int tid = i;
1677
1678                 if (tid == IWL_MAX_TID_COUNT)
1679                         tid = IEEE80211_NUM_TIDS;
1680
1681                 txq = sta->txq[tid];
1682                 mvmtxq = iwl_mvm_txq_from_mac80211(txq);
1683                 mvmtxq->stopped = !start;
1684
1685                 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1686                         iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
1687         }
1688
1689 out:
1690         rcu_read_unlock();
1691 }
1692
1693 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1694 {
1695         iwl_mvm_queue_state_change(op_mode, hw_queue, false);
1696 }
1697
1698 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1699 {
1700         iwl_mvm_queue_state_change(op_mode, hw_queue, true);
1701 }
1702
1703 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm)
1704 {
1705         bool state = iwl_mvm_is_radio_killed(mvm);
1706
1707         if (state)
1708                 wake_up(&mvm->rx_sync_waitq);
1709
1710         wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
1711 }
1712
1713 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1714 {
1715         if (state)
1716                 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1717         else
1718                 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1719
1720         iwl_mvm_set_rfkill_state(mvm);
1721 }
1722
1723 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm)
1724 {
1725         return rcu_dereference_protected(mvm->csme_conn_info,
1726                                          lockdep_is_held(&mvm->mutex));
1727 }
1728
1729 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
1730 {
1731         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1732         bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done);
1733         bool unified = iwl_mvm_has_unified_ucode(mvm);
1734
1735         if (state)
1736                 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1737         else
1738                 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1739
1740         iwl_mvm_set_rfkill_state(mvm);
1741
1742          /* iwl_run_init_mvm_ucode is waiting for results, abort it. */
1743         if (rfkill_safe_init_done)
1744                 iwl_abort_notification_waits(&mvm->notif_wait);
1745
1746         /*
1747          * Don't ask the transport to stop the firmware. We'll do it
1748          * after cfg80211 takes us down.
1749          */
1750         if (unified)
1751                 return false;
1752
1753         /*
1754          * Stop the device if we run OPERATIONAL firmware or if we are in the
1755          * middle of the calibrations.
1756          */
1757         return state && rfkill_safe_init_done;
1758 }
1759
1760 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1761 {
1762         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1763         struct ieee80211_tx_info *info;
1764
1765         info = IEEE80211_SKB_CB(skb);
1766         iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1767         ieee80211_free_txskb(mvm->hw, skb);
1768 }
1769
1770 struct iwl_mvm_reprobe {
1771         struct device *dev;
1772         struct work_struct work;
1773 };
1774
1775 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1776 {
1777         struct iwl_mvm_reprobe *reprobe;
1778
1779         reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1780         if (device_reprobe(reprobe->dev))
1781                 dev_err(reprobe->dev, "reprobe failed!\n");
1782         put_device(reprobe->dev);
1783         kfree(reprobe);
1784         module_put(THIS_MODULE);
1785 }
1786
1787 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1788 {
1789         iwl_abort_notification_waits(&mvm->notif_wait);
1790         iwl_dbg_tlv_del_timers(mvm->trans);
1791
1792         /*
1793          * This is a bit racy, but worst case we tell mac80211 about
1794          * a stopped/aborted scan when that was already done which
1795          * is not a problem. It is necessary to abort any os scan
1796          * here because mac80211 requires having the scan cleared
1797          * before restarting.
1798          * We'll reset the scan_status to NONE in restart cleanup in
1799          * the next start() call from mac80211. If restart isn't called
1800          * (no fw restart) scan status will stay busy.
1801          */
1802         iwl_mvm_report_scan_aborted(mvm);
1803
1804         /*
1805          * If we're restarting already, don't cycle restarts.
1806          * If INIT fw asserted, it will likely fail again.
1807          * If WoWLAN fw asserted, don't restart either, mac80211
1808          * can't recover this since we're already half suspended.
1809          */
1810         if (!mvm->fw_restart && fw_error) {
1811                 iwl_fw_error_collect(&mvm->fwrt, false);
1812         } else if (test_bit(IWL_MVM_STATUS_STARTING,
1813                             &mvm->status)) {
1814                 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n");
1815         } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1816                 struct iwl_mvm_reprobe *reprobe;
1817
1818                 IWL_ERR(mvm,
1819                         "Firmware error during reconfiguration - reprobe!\n");
1820
1821                 /*
1822                  * get a module reference to avoid doing this while unloading
1823                  * anyway and to avoid scheduling a work with code that's
1824                  * being removed.
1825                  */
1826                 if (!try_module_get(THIS_MODULE)) {
1827                         IWL_ERR(mvm, "Module is being unloaded - abort\n");
1828                         return;
1829                 }
1830
1831                 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1832                 if (!reprobe) {
1833                         module_put(THIS_MODULE);
1834                         return;
1835                 }
1836                 reprobe->dev = get_device(mvm->trans->dev);
1837                 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1838                 schedule_work(&reprobe->work);
1839         } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1840                             &mvm->status)) {
1841                 IWL_ERR(mvm, "HW restart already requested, but not started\n");
1842         } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR &&
1843                    mvm->hw_registered &&
1844                    !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
1845                 /* This should be first thing before trying to collect any
1846                  * data to avoid endless loops if any HW error happens while
1847                  * collecting debug data.
1848                  */
1849                 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1850
1851                 if (mvm->fw->ucode_capa.error_log_size) {
1852                         u32 src_size = mvm->fw->ucode_capa.error_log_size;
1853                         u32 src_addr = mvm->fw->ucode_capa.error_log_addr;
1854                         u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC);
1855
1856                         if (recover_buf) {
1857                                 mvm->error_recovery_buf = recover_buf;
1858                                 iwl_trans_read_mem_bytes(mvm->trans,
1859                                                          src_addr,
1860                                                          recover_buf,
1861                                                          src_size);
1862                         }
1863                 }
1864
1865                 iwl_fw_error_collect(&mvm->fwrt, false);
1866
1867                 if (fw_error && mvm->fw_restart > 0) {
1868                         mvm->fw_restart--;
1869                         ieee80211_restart_hw(mvm->hw);
1870                 } else if (mvm->fwrt.trans->dbg.restart_required) {
1871                         IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n");
1872                         mvm->fwrt.trans->dbg.restart_required = FALSE;
1873                         ieee80211_restart_hw(mvm->hw);
1874                 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) {
1875                         ieee80211_restart_hw(mvm->hw);
1876                 }
1877         }
1878 }
1879
1880 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
1881 {
1882         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1883
1884         if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) &&
1885             !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE,
1886                                 &mvm->status))
1887                 iwl_mvm_dump_nic_error_log(mvm);
1888
1889         if (sync) {
1890                 iwl_fw_error_collect(&mvm->fwrt, true);
1891                 /*
1892                  * Currently, the only case for sync=true is during
1893                  * shutdown, so just stop in this case. If/when that
1894                  * changes, we need to be a bit smarter here.
1895                  */
1896                 return;
1897         }
1898
1899         /*
1900          * If the firmware crashes while we're already considering it
1901          * to be dead then don't ask for a restart, that cannot do
1902          * anything useful anyway.
1903          */
1904         if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status))
1905                 return;
1906
1907         iwl_mvm_nic_restart(mvm, false);
1908 }
1909
1910 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1911 {
1912         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1913
1914         WARN_ON(1);
1915         iwl_mvm_nic_restart(mvm, true);
1916 }
1917
1918 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode,
1919                                        enum iwl_fw_ini_time_point tp_id,
1920                                        union iwl_dbg_tlv_tp_data *tp_data)
1921 {
1922         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1923
1924         iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data);
1925 }
1926
1927 #define IWL_MVM_COMMON_OPS                                      \
1928         /* these could be differentiated */                     \
1929         .async_cb = iwl_mvm_async_cb,                           \
1930         .queue_full = iwl_mvm_stop_sw_queue,                    \
1931         .queue_not_full = iwl_mvm_wake_sw_queue,                \
1932         .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,              \
1933         .free_skb = iwl_mvm_free_skb,                           \
1934         .nic_error = iwl_mvm_nic_error,                         \
1935         .cmd_queue_full = iwl_mvm_cmd_queue_full,               \
1936         .nic_config = iwl_mvm_nic_config,                       \
1937         /* as we only register one, these MUST be common! */    \
1938         .start = iwl_op_mode_mvm_start,                         \
1939         .stop = iwl_op_mode_mvm_stop,                           \
1940         .time_point = iwl_op_mode_mvm_time_point
1941
1942 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1943         IWL_MVM_COMMON_OPS,
1944         .rx = iwl_mvm_rx,
1945 };
1946
1947 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1948                               struct napi_struct *napi,
1949                               struct iwl_rx_cmd_buffer *rxb,
1950                               unsigned int queue)
1951 {
1952         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1953         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1954         u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1955
1956         if (unlikely(queue >= mvm->trans->num_rx_queues))
1957                 return;
1958
1959         if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
1960                 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
1961         else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1962                                          RX_QUEUES_NOTIFICATION)))
1963                 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue);
1964         else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1965                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1966 }
1967
1968 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1969         IWL_MVM_COMMON_OPS,
1970         .rx = iwl_mvm_rx_mq,
1971         .rx_rss = iwl_mvm_rx_mq_rss,
1972 };