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->bss_conf.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_location_names[] = {
 561         HCMD_NAME(TOF_RANGE_REQ_CMD),
 562         HCMD_NAME(TOF_CONFIG_CMD),
 563         HCMD_NAME(TOF_RANGE_ABORT_CMD),
 564         HCMD_NAME(TOF_RANGE_REQ_EXT_CMD),
 565         HCMD_NAME(TOF_RESPONDER_CONFIG_CMD),
 566         HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD),
 567         HCMD_NAME(TOF_LC_NOTIF),
 568         HCMD_NAME(TOF_RESPONDER_STATS),
 569         HCMD_NAME(TOF_MCSI_DEBUG_NOTIF),
 570         HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF),
 571 };
 572
 573 /* Please keep this array *SORTED* by hex value.
 574  * Access is done through binary search
 575  */
 576 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
 577         HCMD_NAME(STORED_BEACON_NTF),
 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_regulatory_and_nvm_names[] = {
 584         HCMD_NAME(NVM_ACCESS_COMPLETE),
 585         HCMD_NAME(NVM_GET_INFO),
 586         HCMD_NAME(TAS_CONFIG),
 587 };
 588
 589 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
 590         [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 591         [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 592         [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
 593         [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
 594         [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
 595         [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
 596         [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names),
 597         [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
 598         [REGULATORY_AND_NVM_GROUP] =
 599                 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),
 600 };
 601
 602 /* this forward declaration can avoid to export the function */
 603 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
 604
 605 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm)
 606 {
 607         const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs;
 608         u64 dflt_pwr_limit;
 609
 610         if (!backoff)
 611                 return 0;
 612
 613         dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev);
 614
 615         while (backoff->pwr) {
 616                 if (dflt_pwr_limit >= backoff->pwr)
 617                         return backoff->backoff;
 618
 619                 backoff++;
 620         }
 621
 622         return 0;
 623 }
 624
 625 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
 626 {
 627         struct iwl_mvm *mvm =
 628                 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
 629         struct ieee80211_vif *tx_blocked_vif;
 630         struct iwl_mvm_vif *mvmvif;
 631
 632         mutex_lock(&mvm->mutex);
 633
 634         tx_blocked_vif =
 635                 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
 636                                           lockdep_is_held(&mvm->mutex));
 637
 638         if (!tx_blocked_vif)
 639                 goto unlock;
 640
 641         mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
 642         iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
 643         RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
 644 unlock:
 645         mutex_unlock(&mvm->mutex);
 646 }
 647
 648 static void iwl_mvm_fwrt_dump_start(void *ctx)
 649 {
 650         struct iwl_mvm *mvm = ctx;
 651
 652         mutex_lock(&mvm->mutex);
 653 }
 654
 655 static void iwl_mvm_fwrt_dump_end(void *ctx)
 656 {
 657         struct iwl_mvm *mvm = ctx;
 658
 659         mutex_unlock(&mvm->mutex);
 660 }
 661
 662 static bool iwl_mvm_fwrt_fw_running(void *ctx)
 663 {
 664         return iwl_mvm_firmware_running(ctx);
 665 }
 666
 667 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd)
 668 {
 669         struct iwl_mvm *mvm = (struct iwl_mvm *)ctx;
 670         int ret;
 671
 672         mutex_lock(&mvm->mutex);
 673         ret = iwl_mvm_send_cmd(mvm, host_cmd);
 674         mutex_unlock(&mvm->mutex);
 675
 676         return ret;
 677 }
 678
 679 static bool iwl_mvm_d3_debug_enable(void *ctx)
 680 {
 681         return IWL_MVM_D3_DEBUG;
 682 }
 683
 684 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
 685         .dump_start = iwl_mvm_fwrt_dump_start,
 686         .dump_end = iwl_mvm_fwrt_dump_end,
 687         .fw_running = iwl_mvm_fwrt_fw_running,
 688         .send_hcmd = iwl_mvm_fwrt_send_hcmd,
 689         .d3_debug_enable = iwl_mvm_d3_debug_enable,
 690 };
 691
 692 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm)
 693 {
 694         struct iwl_trans *trans = mvm->trans;
 695         int ret;
 696
 697         if (trans->csme_own) {
 698                 if (WARN(!mvm->mei_registered,
 699                          "csme is owner, but we aren't registered to iwlmei\n"))
 700                         goto get_nvm_from_fw;
 701
 702                 mvm->mei_nvm_data = iwl_mei_get_nvm();
 703                 if (mvm->mei_nvm_data) {
 704                         /*
 705                          * mvm->mei_nvm_data is set and because of that,
 706                          * we'll load the NVM from the FW when we'll get
 707                          * ownership.
 708                          */
 709                         mvm->nvm_data =
 710                                 iwl_parse_mei_nvm_data(trans, trans->cfg,
 711                                                        mvm->mei_nvm_data, mvm->fw);
 712                         return 0;
 713                 }
 714
 715                 IWL_ERR(mvm,
 716                         "Got a NULL NVM from CSME, trying to get it from the device\n");
 717         }
 718
 719 get_nvm_from_fw:
 720         rtnl_lock();
 721         wiphy_lock(mvm->hw->wiphy);
 722         mutex_lock(&mvm->mutex);
 723
 724         ret = iwl_trans_start_hw(mvm->trans);
 725         if (ret) {
 726                 mutex_unlock(&mvm->mutex);
 727                 wiphy_unlock(mvm->hw->wiphy);
 728                 rtnl_unlock();
 729                 return ret;
 730         }
 731
 732         ret = iwl_run_init_mvm_ucode(mvm);
 733         if (ret && ret != -ERFKILL)
 734                 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER);
 735         if (!ret && iwl_mvm_is_lar_supported(mvm)) {
 736                 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
 737                 ret = iwl_mvm_init_mcc(mvm);
 738         }
 739
 740         if (!iwlmvm_mod_params.init_dbg || !ret)
 741                 iwl_mvm_stop_device(mvm);
 742
 743         mutex_unlock(&mvm->mutex);
 744         wiphy_unlock(mvm->hw->wiphy);
 745         rtnl_unlock();
 746
 747         if (ret)
 748                 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
 749
 750         return ret;
 751 }
 752
 753 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm)
 754 {
 755         struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
 756         int ret;
 757
 758         iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
 759
 760         ret = iwl_mvm_mac_setup_register(mvm);
 761         if (ret)
 762                 return ret;
 763
 764         mvm->hw_registered = true;
 765
 766         iwl_mvm_dbgfs_register(mvm);
 767
 768         wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
 769                                          mvm->mei_rfkill_blocked,
 770                                          RFKILL_HARD_BLOCK_NOT_OWNER);
 771
 772         iwl_mvm_mei_set_sw_rfkill_state(mvm);
 773
 774         return 0;
 775 }
 776
 777 struct iwl_mvm_frob_txf_data {
 778         u8 *buf;
 779         size_t buflen;
 780 };
 781
 782 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw,
 783                                       struct ieee80211_vif *vif,
 784                                       struct ieee80211_sta *sta,
 785                                       struct ieee80211_key_conf *key,
 786                                       void *data)
 787 {
 788         struct iwl_mvm_frob_txf_data *txf = data;
 789         u8 keylen, match, matchend;
 790         u8 *keydata;
 791         size_t i;
 792
 793         switch (key->cipher) {
 794         case WLAN_CIPHER_SUITE_CCMP:
 795                 keydata = key->key;
 796                 keylen = key->keylen;
 797                 break;
 798         case WLAN_CIPHER_SUITE_WEP40:
 799         case WLAN_CIPHER_SUITE_WEP104:
 800         case WLAN_CIPHER_SUITE_TKIP:
 801                 /*
 802                  * WEP has short keys which might show up in the payload,
 803                  * and then you can deduce the key, so in this case just
 804                  * remove all FIFO data.
 805                  * For TKIP, we don't know the phase 2 keys here, so same.
 806                  */
 807                 memset(txf->buf, 0xBB, txf->buflen);
 808                 return;
 809         default:
 810                 return;
 811         }
 812
 813         /* scan for key material and clear it out */
 814         match = 0;
 815         for (i = 0; i < txf->buflen; i++) {
 816                 if (txf->buf[i] != keydata[match]) {
 817                         match = 0;
 818                         continue;
 819                 }
 820                 match++;
 821                 if (match == keylen) {
 822                         memset(txf->buf + i - keylen, 0xAA, keylen);
 823                         match = 0;
 824                 }
 825         }
 826
 827         /* we're dealing with a FIFO, so check wrapped around data */
 828         matchend = match;
 829         for (i = 0; match && i < keylen - match; i++) {
 830                 if (txf->buf[i] != keydata[match])
 831                         break;
 832                 match++;
 833                 if (match == keylen) {
 834                         memset(txf->buf, 0xAA, i + 1);
 835                         memset(txf->buf + txf->buflen - matchend, 0xAA,
 836                                matchend);
 837                         break;
 838                 }
 839         }
 840 }
 841
 842 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen)
 843 {
 844         struct iwl_mvm_frob_txf_data txf = {
 845                 .buf = buf,
 846                 .buflen = buflen,
 847         };
 848         struct iwl_mvm *mvm = ctx;
 849
 850         /* embedded key material exists only on old API */
 851         if (iwl_mvm_has_new_tx_api(mvm))
 852                 return;
 853
 854         rcu_read_lock();
 855         ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf);
 856         rcu_read_unlock();
 857 }
 858
 859 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len)
 860 {
 861         /* we only use wide headers for commands */
 862         struct iwl_cmd_header_wide *hdr = hcmd;
 863         unsigned int frob_start = sizeof(*hdr), frob_end = 0;
 864
 865         if (len < sizeof(hdr))
 866                 return;
 867
 868         /* all the commands we care about are in LONG_GROUP */
 869         if (hdr->group_id != LONG_GROUP)
 870                 return;
 871
 872         switch (hdr->cmd) {
 873         case WEP_KEY:
 874         case WOWLAN_TKIP_PARAM:
 875         case WOWLAN_KEK_KCK_MATERIAL:
 876         case ADD_STA_KEY:
 877                 /*
 878                  * blank out everything here, easier than dealing
 879                  * with the various versions of the command
 880                  */
 881                 frob_end = INT_MAX;
 882                 break;
 883         case MGMT_MCAST_KEY:
 884                 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
 885                 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) !=
 886                              offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
 887
 888                 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
 889                 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) <
 890                              offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
 891                 break;
 892         }
 893
 894         if (frob_start >= frob_end)
 895                 return;
 896
 897         if (frob_end > len)
 898                 frob_end = len;
 899
 900         memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start);
 901 }
 902
 903 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen)
 904 {
 905         const struct iwl_dump_exclude *excl;
 906         struct iwl_mvm *mvm = ctx;
 907         int i;
 908
 909         switch (mvm->fwrt.cur_fw_img) {
 910         case IWL_UCODE_INIT:
 911         default:
 912                 /* not relevant */
 913                 return;
 914         case IWL_UCODE_REGULAR:
 915         case IWL_UCODE_REGULAR_USNIFFER:
 916                 excl = mvm->fw->dump_excl;
 917                 break;
 918         case IWL_UCODE_WOWLAN:
 919                 excl = mvm->fw->dump_excl_wowlan;
 920                 break;
 921         }
 922
 923         BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) !=
 924                      sizeof(mvm->fw->dump_excl_wowlan));
 925
 926         for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) {
 927                 u32 start, end;
 928
 929                 if (!excl[i].addr || !excl[i].size)
 930                         continue;
 931
 932                 start = excl[i].addr;
 933                 end = start + excl[i].size;
 934
 935                 if (end <= mem_addr || start >= mem_addr + buflen)
 936                         continue;
 937
 938                 if (start < mem_addr)
 939                         start = mem_addr;
 940
 941                 if (end > mem_addr + buflen)
 942                         end = mem_addr + buflen;
 943
 944                 memset((u8 *)mem + start - mem_addr, 0xAA, end - start);
 945         }
 946 }
 947
 948 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = {
 949         .frob_txf = iwl_mvm_frob_txf,
 950         .frob_hcmd = iwl_mvm_frob_hcmd,
 951         .frob_mem = iwl_mvm_frob_mem,
 952 };
 953
 954 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info)
 955 {
 956         struct iwl_mvm *mvm = priv;
 957         struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info;
 958
 959         /*
 960          * This is protected by the guarantee that this function will not be
 961          * called twice on two different threads
 962          */
 963         prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true);
 964
 965         curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL);
 966         if (!curr_conn_info)
 967                 return;
 968
 969         curr_conn_info->conn_info = *conn_info;
 970
 971         rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info);
 972
 973         if (prev_conn_info)
 974                 kfree_rcu(prev_conn_info, rcu_head);
 975 }
 976
 977 static void iwl_mvm_mei_rfkill(void *priv, bool blocked)
 978 {
 979         struct iwl_mvm *mvm = priv;
 980
 981         mvm->mei_rfkill_blocked = blocked;
 982         if (!mvm->hw_registered)
 983                 return;
 984
 985         wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
 986                                          mvm->mei_rfkill_blocked,
 987                                          RFKILL_HARD_BLOCK_NOT_OWNER);
 988 }
 989
 990 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden)
 991 {
 992         struct iwl_mvm *mvm = priv;
 993
 994         if (!mvm->hw_registered || !mvm->csme_vif)
 995                 return;
 996
 997         iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden);
 998 }
 999
1000 static void iwl_mvm_sap_connected_wk(struct work_struct *wk)
1001 {
1002         struct iwl_mvm *mvm =
1003                 container_of(wk, struct iwl_mvm, sap_connected_wk);
1004         int ret;
1005
1006         ret = iwl_mvm_start_get_nvm(mvm);
1007         if (ret)
1008                 goto out_free;
1009
1010         ret = iwl_mvm_start_post_nvm(mvm);
1011         if (ret)
1012                 goto out_free;
1013
1014         return;
1015
1016 out_free:
1017         IWL_ERR(mvm, "Couldn't get started...\n");
1018         iwl_mei_start_unregister();
1019         iwl_mei_unregister_complete();
1020         iwl_fw_flush_dumps(&mvm->fwrt);
1021         iwl_mvm_thermal_exit(mvm);
1022         iwl_fw_runtime_free(&mvm->fwrt);
1023         iwl_phy_db_free(mvm->phy_db);
1024         kfree(mvm->scan_cmd);
1025         iwl_trans_op_mode_leave(mvm->trans);
1026         kfree(mvm->nvm_data);
1027         kfree(mvm->mei_nvm_data);
1028
1029         ieee80211_free_hw(mvm->hw);
1030 }
1031
1032 static void iwl_mvm_mei_sap_connected(void *priv)
1033 {
1034         struct iwl_mvm *mvm = priv;
1035
1036         if (!mvm->hw_registered)
1037                 schedule_work(&mvm->sap_connected_wk);
1038 }
1039
1040 static void iwl_mvm_mei_nic_stolen(void *priv)
1041 {
1042         struct iwl_mvm *mvm = priv;
1043
1044         rtnl_lock();
1045         cfg80211_shutdown_all_interfaces(mvm->hw->wiphy);
1046         rtnl_unlock();
1047 }
1048
1049 static const struct iwl_mei_ops mei_ops = {
1050         .me_conn_status = iwl_mvm_me_conn_status,
1051         .rfkill = iwl_mvm_mei_rfkill,
1052         .roaming_forbidden = iwl_mvm_mei_roaming_forbidden,
1053         .sap_connected = iwl_mvm_mei_sap_connected,
1054         .nic_stolen = iwl_mvm_mei_nic_stolen,
1055 };
1056
1057 static struct iwl_op_mode *
1058 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
1059                       const struct iwl_fw *fw, struct dentry *dbgfs_dir)
1060 {
1061         struct ieee80211_hw *hw;
1062         struct iwl_op_mode *op_mode;
1063         struct iwl_mvm *mvm;
1064         struct iwl_trans_config trans_cfg = {};
1065         static const u8 no_reclaim_cmds[] = {
1066                 TX_CMD,
1067         };
1068         int scan_size;
1069         u32 min_backoff;
1070         struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
1071
1072         /*
1073          * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station
1074          * index all over the driver - check that its value corresponds to the
1075          * array size.
1076          */
1077         BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) !=
1078                      IWL_MVM_STATION_COUNT_MAX);
1079
1080         /********************************
1081          * 1. Allocating and configuring HW data
1082          ********************************/
1083         hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
1084                                 sizeof(struct iwl_mvm),
1085                                 &iwl_mvm_hw_ops);
1086         if (!hw)
1087                 return NULL;
1088
1089         hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
1090
1091         if (cfg->max_tx_agg_size)
1092                 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
1093         else
1094                 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
1095
1096         op_mode = hw->priv;
1097
1098         mvm = IWL_OP_MODE_GET_MVM(op_mode);
1099         mvm->dev = trans->dev;
1100         mvm->trans = trans;
1101         mvm->cfg = cfg;
1102         mvm->fw = fw;
1103         mvm->hw = hw;
1104
1105         iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm,
1106                             &iwl_mvm_sanitize_ops, mvm, dbgfs_dir);
1107
1108         iwl_mvm_get_acpi_tables(mvm);
1109         iwl_uefi_get_sgom_table(trans, &mvm->fwrt);
1110
1111         mvm->init_status = 0;
1112
1113         if (iwl_mvm_has_new_rx_api(mvm)) {
1114                 op_mode->ops = &iwl_mvm_ops_mq;
1115                 trans->rx_mpdu_cmd_hdr_size =
1116                         (trans->trans_cfg->device_family >=
1117                          IWL_DEVICE_FAMILY_AX210) ?
1118                         sizeof(struct iwl_rx_mpdu_desc) :
1119                         IWL_RX_DESC_SIZE_V1;
1120         } else {
1121                 op_mode->ops = &iwl_mvm_ops;
1122                 trans->rx_mpdu_cmd_hdr_size =
1123                         sizeof(struct iwl_rx_mpdu_res_start);
1124
1125                 if (WARN_ON(trans->num_rx_queues > 1))
1126                         goto out_free;
1127         }
1128
1129         mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
1130
1131         if (iwl_mvm_has_new_tx_api(mvm)) {
1132                 /*
1133                  * If we have the new TX/queue allocation API initialize them
1134                  * all to invalid numbers. We'll rewrite the ones that we need
1135                  * later, but that doesn't happen for all of them all of the
1136                  * time (e.g. P2P Device is optional), and if a dynamic queue
1137                  * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then
1138                  * iwl_mvm_is_static_queue() erroneously returns true, and we
1139                  * might have things getting stuck.
1140                  */
1141                 mvm->aux_queue = IWL_MVM_INVALID_QUEUE;
1142                 mvm->snif_queue = IWL_MVM_INVALID_QUEUE;
1143                 mvm->probe_queue = IWL_MVM_INVALID_QUEUE;
1144                 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE;
1145         } else {
1146                 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
1147                 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE;
1148                 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
1149                 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
1150         }
1151
1152         mvm->sf_state = SF_UNINIT;
1153         if (iwl_mvm_has_unified_ucode(mvm))
1154                 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR);
1155         else
1156                 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT);
1157         mvm->drop_bcn_ap_mode = true;
1158
1159         mutex_init(&mvm->mutex);
1160         spin_lock_init(&mvm->async_handlers_lock);
1161         INIT_LIST_HEAD(&mvm->time_event_list);
1162         INIT_LIST_HEAD(&mvm->aux_roc_te_list);
1163         INIT_LIST_HEAD(&mvm->async_handlers_list);
1164         spin_lock_init(&mvm->time_event_lock);
1165         INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list);
1166         INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list);
1167         INIT_LIST_HEAD(&mvm->resp_pasn_list);
1168
1169         INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
1170         INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
1171         INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk);
1172         INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
1173         INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
1174         INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
1175         INIT_LIST_HEAD(&mvm->add_stream_txqs);
1176
1177         init_waitqueue_head(&mvm->rx_sync_waitq);
1178
1179         mvm->queue_sync_state = 0;
1180
1181         SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
1182
1183         spin_lock_init(&mvm->tcm.lock);
1184         INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work);
1185         mvm->tcm.ts = jiffies;
1186         mvm->tcm.ll_ts = jiffies;
1187         mvm->tcm.uapsd_nonagg_ts = jiffies;
1188
1189         INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
1190
1191         mvm->cmd_ver.d0i3_resp =
1192                 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD,
1193                                         0);
1194         /* we only support version 1 */
1195         if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1))
1196                 goto out_free;
1197
1198         mvm->cmd_ver.range_resp =
1199                 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP,
1200                                         TOF_RANGE_RESPONSE_NOTIF, 5);
1201         /* we only support up to version 9 */
1202         if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9))
1203                 goto out_free;
1204
1205         /*
1206          * Populate the state variables that the transport layer needs
1207          * to know about.
1208          */
1209         trans_cfg.op_mode = op_mode;
1210         trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
1211         trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
1212
1213         switch (iwlwifi_mod_params.amsdu_size) {
1214         case IWL_AMSDU_DEF:
1215                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1216                 break;
1217         case IWL_AMSDU_4K:
1218                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1219                 break;
1220         case IWL_AMSDU_8K:
1221                 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
1222                 break;
1223         case IWL_AMSDU_12K:
1224                 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
1225                 break;
1226         default:
1227                 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
1228                        iwlwifi_mod_params.amsdu_size);
1229                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1230         }
1231
1232         trans->wide_cmd_header = true;
1233         trans_cfg.bc_table_dword =
1234                 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210;
1235
1236         trans_cfg.command_groups = iwl_mvm_groups;
1237         trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
1238
1239         trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
1240         trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
1241         trans_cfg.scd_set_active = true;
1242
1243         trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
1244                                           driver_data[2]);
1245
1246         /* Set a short watchdog for the command queue */
1247         trans_cfg.cmd_q_wdg_timeout =
1248                 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
1249
1250         snprintf(mvm->hw->wiphy->fw_version,
1251                  sizeof(mvm->hw->wiphy->fw_version),
1252                  "%s", fw->fw_version);
1253
1254         trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa,
1255                                                    IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE);
1256
1257         trans_cfg.queue_alloc_cmd_ver =
1258                 iwl_fw_lookup_cmd_ver(mvm->fw,
1259                                       WIDE_ID(DATA_PATH_GROUP,
1260                                               SCD_QUEUE_CONFIG_CMD),
1261                                       0);
1262         mvm->sta_remove_requires_queue_remove =
1263                 trans_cfg.queue_alloc_cmd_ver > 0;
1264
1265         /* Configure transport layer */
1266         iwl_trans_configure(mvm->trans, &trans_cfg);
1267
1268         trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
1269         trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv;
1270         trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg;
1271         memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv,
1272                sizeof(trans->dbg.conf_tlv));
1273         trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv;
1274
1275         trans->iml = mvm->fw->iml;
1276         trans->iml_len = mvm->fw->iml_len;
1277
1278         /* set up notification wait support */
1279         iwl_notification_wait_init(&mvm->notif_wait);
1280
1281         /* Init phy db */
1282         mvm->phy_db = iwl_phy_db_init(trans);
1283         if (!mvm->phy_db) {
1284                 IWL_ERR(mvm, "Cannot init phy_db\n");
1285                 goto out_free;
1286         }
1287
1288         IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
1289                  mvm->trans->name, mvm->trans->hw_rev);
1290
1291         if (iwlwifi_mod_params.nvm_file)
1292                 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
1293         else
1294                 IWL_DEBUG_EEPROM(mvm->trans->dev,
1295                                  "working without external nvm file\n");
1296
1297         scan_size = iwl_mvm_scan_size(mvm);
1298
1299         mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
1300         if (!mvm->scan_cmd)
1301                 goto out_free;
1302
1303         /* invalidate ids to prevent accidental removal of sta_id 0 */
1304         mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA;
1305         mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA;
1306
1307         /* Set EBS as successful as long as not stated otherwise by the FW. */
1308         mvm->last_ebs_successful = true;
1309
1310         min_backoff = iwl_mvm_min_backoff(mvm);
1311         iwl_mvm_thermal_initialize(mvm, min_backoff);
1312
1313         if (!iwl_mvm_has_new_rx_stats_api(mvm))
1314                 memset(&mvm->rx_stats_v3, 0,
1315                        sizeof(struct mvm_statistics_rx_v3));
1316         else
1317                 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
1318
1319         mvm->debugfs_dir = dbgfs_dir;
1320
1321         mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops);
1322
1323         if (iwl_mvm_start_get_nvm(mvm)) {
1324                 /*
1325                  * Getting NVM failed while CSME is the owner, but we are
1326                  * registered to MEI, we'll get the NVM later when it'll be
1327                  * possible to get it from CSME.
1328                  */
1329                 if (trans->csme_own && mvm->mei_registered)
1330                         return op_mode;
1331
1332                 goto out_thermal_exit;
1333         }
1334
1335
1336         if (iwl_mvm_start_post_nvm(mvm))
1337                 goto out_thermal_exit;
1338
1339         return op_mode;
1340
1341  out_thermal_exit:
1342         iwl_mvm_thermal_exit(mvm);
1343         if (mvm->mei_registered) {
1344                 iwl_mei_start_unregister();
1345                 iwl_mei_unregister_complete();
1346         }
1347  out_free:
1348         iwl_fw_flush_dumps(&mvm->fwrt);
1349         iwl_fw_runtime_free(&mvm->fwrt);
1350
1351         if (iwlmvm_mod_params.init_dbg)
1352                 return op_mode;
1353         iwl_phy_db_free(mvm->phy_db);
1354         kfree(mvm->scan_cmd);
1355         iwl_trans_op_mode_leave(trans);
1356
1357         ieee80211_free_hw(mvm->hw);
1358         return NULL;
1359 }
1360
1361 void iwl_mvm_stop_device(struct iwl_mvm *mvm)
1362 {
1363         lockdep_assert_held(&mvm->mutex);
1364
1365         iwl_fw_cancel_timestamp(&mvm->fwrt);
1366
1367         clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1368
1369         iwl_fw_dbg_stop_sync(&mvm->fwrt);
1370         iwl_trans_stop_device(mvm->trans);
1371         iwl_free_fw_paging(&mvm->fwrt);
1372         iwl_fw_dump_conf_clear(&mvm->fwrt);
1373         iwl_mvm_mei_device_down(mvm);
1374 }
1375
1376 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
1377 {
1378         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1379         int i;
1380
1381         if (mvm->mei_registered) {
1382                 rtnl_lock();
1383                 iwl_mei_set_netdev(NULL);
1384                 rtnl_unlock();
1385                 iwl_mei_start_unregister();
1386         }
1387
1388         /*
1389          * After we unregister from mei, the worker can't be scheduled
1390          * anymore.
1391          */
1392         cancel_work_sync(&mvm->sap_connected_wk);
1393
1394         iwl_mvm_leds_exit(mvm);
1395
1396         iwl_mvm_thermal_exit(mvm);
1397
1398         /*
1399          * If we couldn't get ownership on the device and we couldn't
1400          * get the NVM from CSME, we haven't registered to mac80211.
1401          * In that case, we didn't fail op_mode_start, because we are
1402          * waiting for CSME to allow us to get the NVM to register to
1403          * mac80211. If that didn't happen, we haven't registered to
1404          * mac80211, hence the if below.
1405          */
1406         if (mvm->hw_registered)
1407                 ieee80211_unregister_hw(mvm->hw);
1408
1409         kfree(mvm->scan_cmd);
1410         kfree(mvm->mcast_filter_cmd);
1411         mvm->mcast_filter_cmd = NULL;
1412
1413         kfree(mvm->error_recovery_buf);
1414         mvm->error_recovery_buf = NULL;
1415
1416         iwl_trans_op_mode_leave(mvm->trans);
1417
1418         iwl_phy_db_free(mvm->phy_db);
1419         mvm->phy_db = NULL;
1420
1421         kfree(mvm->nvm_data);
1422         kfree(mvm->mei_nvm_data);
1423         kfree(rcu_access_pointer(mvm->csme_conn_info));
1424         kfree(mvm->temp_nvm_data);
1425         for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
1426                 kfree(mvm->nvm_sections[i].data);
1427
1428         cancel_delayed_work_sync(&mvm->tcm.work);
1429
1430         iwl_fw_runtime_free(&mvm->fwrt);
1431         mutex_destroy(&mvm->mutex);
1432
1433         if (mvm->mei_registered)
1434                 iwl_mei_unregister_complete();
1435
1436         ieee80211_free_hw(mvm->hw);
1437 }
1438
1439 struct iwl_async_handler_entry {
1440         struct list_head list;
1441         struct iwl_rx_cmd_buffer rxb;
1442         enum iwl_rx_handler_context context;
1443         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1444 };
1445
1446 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
1447 {
1448         struct iwl_async_handler_entry *entry, *tmp;
1449
1450         spin_lock_bh(&mvm->async_handlers_lock);
1451         list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
1452                 iwl_free_rxb(&entry->rxb);
1453                 list_del(&entry->list);
1454                 kfree(entry);
1455         }
1456         spin_unlock_bh(&mvm->async_handlers_lock);
1457 }
1458
1459 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
1460 {
1461         struct iwl_mvm *mvm =
1462                 container_of(wk, struct iwl_mvm, async_handlers_wk);
1463         struct iwl_async_handler_entry *entry, *tmp;
1464         LIST_HEAD(local_list);
1465
1466         /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
1467
1468         /*
1469          * Sync with Rx path with a lock. Remove all the entries from this list,
1470          * add them to a local one (lock free), and then handle them.
1471          */
1472         spin_lock_bh(&mvm->async_handlers_lock);
1473         list_splice_init(&mvm->async_handlers_list, &local_list);
1474         spin_unlock_bh(&mvm->async_handlers_lock);
1475
1476         list_for_each_entry_safe(entry, tmp, &local_list, list) {
1477                 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1478                         mutex_lock(&mvm->mutex);
1479                 entry->fn(mvm, &entry->rxb);
1480                 iwl_free_rxb(&entry->rxb);
1481                 list_del(&entry->list);
1482                 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1483                         mutex_unlock(&mvm->mutex);
1484                 kfree(entry);
1485         }
1486 }
1487
1488 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
1489                                             struct iwl_rx_packet *pkt)
1490 {
1491         struct iwl_fw_dbg_trigger_tlv *trig;
1492         struct iwl_fw_dbg_trigger_cmd *cmds_trig;
1493         int i;
1494
1495         trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
1496                                      FW_DBG_TRIGGER_FW_NOTIF);
1497         if (!trig)
1498                 return;
1499
1500         cmds_trig = (void *)trig->data;
1501
1502         for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
1503                 /* don't collect on CMD 0 */
1504                 if (!cmds_trig->cmds[i].cmd_id)
1505                         break;
1506
1507                 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
1508                     cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
1509                         continue;
1510
1511                 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
1512                                         "CMD 0x%02x.%02x received",
1513                                         pkt->hdr.group_id, pkt->hdr.cmd);
1514                 break;
1515         }
1516 }
1517
1518 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
1519                               struct iwl_rx_cmd_buffer *rxb,
1520                               struct iwl_rx_packet *pkt)
1521 {
1522         unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);
1523         int i;
1524         union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt };
1525
1526         iwl_dbg_tlv_time_point(&mvm->fwrt,
1527                                IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data);
1528         iwl_mvm_rx_check_trigger(mvm, pkt);
1529
1530         /*
1531          * Do the notification wait before RX handlers so
1532          * even if the RX handler consumes the RXB we have
1533          * access to it in the notification wait entry.
1534          */
1535         iwl_notification_wait_notify(&mvm->notif_wait, pkt);
1536
1537         for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
1538                 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
1539                 struct iwl_async_handler_entry *entry;
1540
1541                 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
1542                         continue;
1543
1544                 if (unlikely(pkt_len < rx_h->min_size))
1545                         return;
1546
1547                 if (rx_h->context == RX_HANDLER_SYNC) {
1548                         rx_h->fn(mvm, rxb);
1549                         return;
1550                 }
1551
1552                 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
1553                 /* we can't do much... */
1554                 if (!entry)
1555                         return;
1556
1557                 entry->rxb._page = rxb_steal_page(rxb);
1558                 entry->rxb._offset = rxb->_offset;
1559                 entry->rxb._rx_page_order = rxb->_rx_page_order;
1560                 entry->fn = rx_h->fn;
1561                 entry->context = rx_h->context;
1562                 spin_lock(&mvm->async_handlers_lock);
1563                 list_add_tail(&entry->list, &mvm->async_handlers_list);
1564                 spin_unlock(&mvm->async_handlers_lock);
1565                 schedule_work(&mvm->async_handlers_wk);
1566                 break;
1567         }
1568 }
1569
1570 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
1571                        struct napi_struct *napi,
1572                        struct iwl_rx_cmd_buffer *rxb)
1573 {
1574         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1575         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1576         u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1577
1578         if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1579                 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
1580         else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
1581                 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
1582         else
1583                 iwl_mvm_rx_common(mvm, rxb, pkt);
1584 }
1585
1586 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
1587                    struct napi_struct *napi,
1588                    struct iwl_rx_cmd_buffer *rxb)
1589 {
1590         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1591         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1592         u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1593
1594         if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1595                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
1596         else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1597                                          RX_QUEUES_NOTIFICATION)))
1598                 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0);
1599         else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
1600                 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
1601         else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE))
1602                 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0);
1603         else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF))
1604                 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0);
1605         else
1606                 iwl_mvm_rx_common(mvm, rxb, pkt);
1607 }
1608
1609 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1610                              const struct iwl_device_cmd *cmd)
1611 {
1612         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1613
1614         /*
1615          * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1616          * commands that need to block the Tx queues.
1617          */
1618         iwl_trans_block_txq_ptrs(mvm->trans, false);
1619 }
1620
1621 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue)
1622 {
1623         return queue == mvm->aux_queue || queue == mvm->probe_queue ||
1624                 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue;
1625 }
1626
1627 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode,
1628                                        int hw_queue, bool start)
1629 {
1630         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1631         struct ieee80211_sta *sta;
1632         struct ieee80211_txq *txq;
1633         struct iwl_mvm_txq *mvmtxq;
1634         int i;
1635         unsigned long tid_bitmap;
1636         struct iwl_mvm_sta *mvmsta;
1637         u8 sta_id;
1638
1639         sta_id = iwl_mvm_has_new_tx_api(mvm) ?
1640                 mvm->tvqm_info[hw_queue].sta_id :
1641                 mvm->queue_info[hw_queue].ra_sta_id;
1642
1643         if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations))
1644                 return;
1645
1646         rcu_read_lock();
1647
1648         sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1649         if (IS_ERR_OR_NULL(sta))
1650                 goto out;
1651         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1652
1653         if (iwl_mvm_is_static_queue(mvm, hw_queue)) {
1654                 if (!start)
1655                         ieee80211_stop_queues(mvm->hw);
1656                 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1657                         ieee80211_wake_queues(mvm->hw);
1658
1659                 goto out;
1660         }
1661
1662         if (iwl_mvm_has_new_tx_api(mvm)) {
1663                 int tid = mvm->tvqm_info[hw_queue].txq_tid;
1664
1665                 tid_bitmap = BIT(tid);
1666         } else {
1667                 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap;
1668         }
1669
1670         for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1671                 int tid = i;
1672
1673                 if (tid == IWL_MAX_TID_COUNT)
1674                         tid = IEEE80211_NUM_TIDS;
1675
1676                 txq = sta->txq[tid];
1677                 mvmtxq = iwl_mvm_txq_from_mac80211(txq);
1678                 mvmtxq->stopped = !start;
1679
1680                 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1681                         iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
1682         }
1683
1684 out:
1685         rcu_read_unlock();
1686 }
1687
1688 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1689 {
1690         iwl_mvm_queue_state_change(op_mode, hw_queue, false);
1691 }
1692
1693 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1694 {
1695         iwl_mvm_queue_state_change(op_mode, hw_queue, true);
1696 }
1697
1698 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm)
1699 {
1700         bool state = iwl_mvm_is_radio_killed(mvm);
1701
1702         if (state)
1703                 wake_up(&mvm->rx_sync_waitq);
1704
1705         wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
1706 }
1707
1708 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1709 {
1710         if (state)
1711                 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1712         else
1713                 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1714
1715         iwl_mvm_set_rfkill_state(mvm);
1716 }
1717
1718 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm)
1719 {
1720         return rcu_dereference_protected(mvm->csme_conn_info,
1721                                          lockdep_is_held(&mvm->mutex));
1722 }
1723
1724 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
1725 {
1726         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1727         bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done);
1728         bool unified = iwl_mvm_has_unified_ucode(mvm);
1729
1730         if (state)
1731                 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1732         else
1733                 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1734
1735         iwl_mvm_set_rfkill_state(mvm);
1736
1737          /* iwl_run_init_mvm_ucode is waiting for results, abort it. */
1738         if (rfkill_safe_init_done)
1739                 iwl_abort_notification_waits(&mvm->notif_wait);
1740
1741         /*
1742          * Don't ask the transport to stop the firmware. We'll do it
1743          * after cfg80211 takes us down.
1744          */
1745         if (unified)
1746                 return false;
1747
1748         /*
1749          * Stop the device if we run OPERATIONAL firmware or if we are in the
1750          * middle of the calibrations.
1751          */
1752         return state && rfkill_safe_init_done;
1753 }
1754
1755 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1756 {
1757         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1758         struct ieee80211_tx_info *info;
1759
1760         info = IEEE80211_SKB_CB(skb);
1761         iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1762         ieee80211_free_txskb(mvm->hw, skb);
1763 }
1764
1765 struct iwl_mvm_reprobe {
1766         struct device *dev;
1767         struct work_struct work;
1768 };
1769
1770 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1771 {
1772         struct iwl_mvm_reprobe *reprobe;
1773
1774         reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1775         if (device_reprobe(reprobe->dev))
1776                 dev_err(reprobe->dev, "reprobe failed!\n");
1777         put_device(reprobe->dev);
1778         kfree(reprobe);
1779         module_put(THIS_MODULE);
1780 }
1781
1782 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1783 {
1784         iwl_abort_notification_waits(&mvm->notif_wait);
1785         iwl_dbg_tlv_del_timers(mvm->trans);
1786
1787         /*
1788          * This is a bit racy, but worst case we tell mac80211 about
1789          * a stopped/aborted scan when that was already done which
1790          * is not a problem. It is necessary to abort any os scan
1791          * here because mac80211 requires having the scan cleared
1792          * before restarting.
1793          * We'll reset the scan_status to NONE in restart cleanup in
1794          * the next start() call from mac80211. If restart isn't called
1795          * (no fw restart) scan status will stay busy.
1796          */
1797         iwl_mvm_report_scan_aborted(mvm);
1798
1799         /*
1800          * If we're restarting already, don't cycle restarts.
1801          * If INIT fw asserted, it will likely fail again.
1802          * If WoWLAN fw asserted, don't restart either, mac80211
1803          * can't recover this since we're already half suspended.
1804          */
1805         if (!mvm->fw_restart && fw_error) {
1806                 iwl_fw_error_collect(&mvm->fwrt, false);
1807         } else if (test_bit(IWL_MVM_STATUS_STARTING,
1808                             &mvm->status)) {
1809                 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n");
1810         } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1811                 struct iwl_mvm_reprobe *reprobe;
1812
1813                 IWL_ERR(mvm,
1814                         "Firmware error during reconfiguration - reprobe!\n");
1815
1816                 /*
1817                  * get a module reference to avoid doing this while unloading
1818                  * anyway and to avoid scheduling a work with code that's
1819                  * being removed.
1820                  */
1821                 if (!try_module_get(THIS_MODULE)) {
1822                         IWL_ERR(mvm, "Module is being unloaded - abort\n");
1823                         return;
1824                 }
1825
1826                 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1827                 if (!reprobe) {
1828                         module_put(THIS_MODULE);
1829                         return;
1830                 }
1831                 reprobe->dev = get_device(mvm->trans->dev);
1832                 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1833                 schedule_work(&reprobe->work);
1834         } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1835                             &mvm->status)) {
1836                 IWL_ERR(mvm, "HW restart already requested, but not started\n");
1837         } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR &&
1838                    mvm->hw_registered &&
1839                    !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
1840                 /* This should be first thing before trying to collect any
1841                  * data to avoid endless loops if any HW error happens while
1842                  * collecting debug data.
1843                  */
1844                 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1845
1846                 if (mvm->fw->ucode_capa.error_log_size) {
1847                         u32 src_size = mvm->fw->ucode_capa.error_log_size;
1848                         u32 src_addr = mvm->fw->ucode_capa.error_log_addr;
1849                         u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC);
1850
1851                         if (recover_buf) {
1852                                 mvm->error_recovery_buf = recover_buf;
1853                                 iwl_trans_read_mem_bytes(mvm->trans,
1854                                                          src_addr,
1855                                                          recover_buf,
1856                                                          src_size);
1857                         }
1858                 }
1859
1860                 iwl_fw_error_collect(&mvm->fwrt, false);
1861
1862                 if (fw_error && mvm->fw_restart > 0) {
1863                         mvm->fw_restart--;
1864                         ieee80211_restart_hw(mvm->hw);
1865                 } else if (mvm->fwrt.trans->dbg.restart_required) {
1866                         IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n");
1867                         mvm->fwrt.trans->dbg.restart_required = FALSE;
1868                         ieee80211_restart_hw(mvm->hw);
1869                 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) {
1870                         ieee80211_restart_hw(mvm->hw);
1871                 }
1872         }
1873 }
1874
1875 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
1876 {
1877         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1878
1879         if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) &&
1880             !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE,
1881                                 &mvm->status))
1882                 iwl_mvm_dump_nic_error_log(mvm);
1883
1884         if (sync) {
1885                 iwl_fw_error_collect(&mvm->fwrt, true);
1886                 /*
1887                  * Currently, the only case for sync=true is during
1888                  * shutdown, so just stop in this case. If/when that
1889                  * changes, we need to be a bit smarter here.
1890                  */
1891                 return;
1892         }
1893
1894         /*
1895          * If the firmware crashes while we're already considering it
1896          * to be dead then don't ask for a restart, that cannot do
1897          * anything useful anyway.
1898          */
1899         if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status))
1900                 return;
1901
1902         iwl_mvm_nic_restart(mvm, false);
1903 }
1904
1905 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1906 {
1907         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1908
1909         WARN_ON(1);
1910         iwl_mvm_nic_restart(mvm, true);
1911 }
1912
1913 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode,
1914                                        enum iwl_fw_ini_time_point tp_id,
1915                                        union iwl_dbg_tlv_tp_data *tp_data)
1916 {
1917         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1918
1919         iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data);
1920 }
1921
1922 #define IWL_MVM_COMMON_OPS                                      \
1923         /* these could be differentiated */                     \
1924         .async_cb = iwl_mvm_async_cb,                           \
1925         .queue_full = iwl_mvm_stop_sw_queue,                    \
1926         .queue_not_full = iwl_mvm_wake_sw_queue,                \
1927         .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,              \
1928         .free_skb = iwl_mvm_free_skb,                           \
1929         .nic_error = iwl_mvm_nic_error,                         \
1930         .cmd_queue_full = iwl_mvm_cmd_queue_full,               \
1931         .nic_config = iwl_mvm_nic_config,                       \
1932         /* as we only register one, these MUST be common! */    \
1933         .start = iwl_op_mode_mvm_start,                         \
1934         .stop = iwl_op_mode_mvm_stop,                           \
1935         .time_point = iwl_op_mode_mvm_time_point
1936
1937 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1938         IWL_MVM_COMMON_OPS,
1939         .rx = iwl_mvm_rx,
1940 };
1941
1942 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1943                               struct napi_struct *napi,
1944                               struct iwl_rx_cmd_buffer *rxb,
1945                               unsigned int queue)
1946 {
1947         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1948         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1949         u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1950
1951         if (unlikely(queue >= mvm->trans->num_rx_queues))
1952                 return;
1953
1954         if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
1955                 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
1956         else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1957                                          RX_QUEUES_NOTIFICATION)))
1958                 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue);
1959         else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1960                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1961 }
1962
1963 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1964         IWL_MVM_COMMON_OPS,
1965         .rx = iwl_mvm_rx_mq,
1966         .rx_rss = iwl_mvm_rx_mq_rss,
1967 };