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/vmalloc.h>
   9 #include <net/mac80211.h>
  10
  11 #include "fw/notif-wait.h"
  12 #include "iwl-trans.h"
  13 #include "iwl-op-mode.h"
  14 #include "fw/img.h"
  15 #include "iwl-debug.h"
  16 #include "iwl-drv.h"
  17 #include "iwl-modparams.h"
  18 #include "mvm.h"
  19 #include "iwl-phy-db.h"
  20 #include "iwl-eeprom-parse.h"
  21 #include "iwl-csr.h"
  22 #include "iwl-io.h"
  23 #include "iwl-prph.h"
  24 #include "rs.h"
  25 #include "fw/api/scan.h"
  26 #include "time-event.h"
  27 #include "fw-api.h"
  28 #include "fw/acpi.h"
  29
  30 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
  31 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  32 MODULE_AUTHOR(DRV_AUTHOR);
  33 MODULE_LICENSE("GPL");
  34
  35 static const struct iwl_op_mode_ops iwl_mvm_ops;
  36 static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
  37
  38 struct iwl_mvm_mod_params iwlmvm_mod_params = {
  39         .power_scheme = IWL_POWER_SCHEME_BPS,
  40         /* rest of fields are 0 by default */
  41 };
  42
  43 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444);
  44 MODULE_PARM_DESC(init_dbg,
  45                  "set to true to debug an ASSERT in INIT fw (default: false");
  46 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444);
  47 MODULE_PARM_DESC(power_scheme,
  48                  "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
  49
  50 /*
  51  * module init and exit functions
  52  */
  53 static int __init iwl_mvm_init(void)
  54 {
  55         int ret;
  56
  57         ret = iwl_mvm_rate_control_register();
  58         if (ret) {
  59                 pr_err("Unable to register rate control algorithm: %d\n", ret);
  60                 return ret;
  61         }
  62
  63         ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
  64         if (ret)
  65                 pr_err("Unable to register MVM op_mode: %d\n", ret);
  66
  67         return ret;
  68 }
  69 module_init(iwl_mvm_init);
  70
  71 static void __exit iwl_mvm_exit(void)
  72 {
  73         iwl_opmode_deregister("iwlmvm");
  74         iwl_mvm_rate_control_unregister();
  75 }
  76 module_exit(iwl_mvm_exit);
  77
  78 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
  79 {
  80         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
  81         u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
  82         u32 reg_val = 0;
  83         u32 phy_config = iwl_mvm_get_phy_config(mvm);
  84
  85         radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
  86                          FW_PHY_CFG_RADIO_TYPE_POS;
  87         radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
  88                          FW_PHY_CFG_RADIO_STEP_POS;
  89         radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
  90                          FW_PHY_CFG_RADIO_DASH_POS;
  91
  92         /* SKU control */
  93         reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
  94                                 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
  95         reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
  96                                 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
  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_DASH |
 122                                 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
 123                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
 124                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
 125                                 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
 126                                 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
 127                                 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI   |
 128                                 CSR_HW_IF_CONFIG_REG_D3_DEBUG,
 129                                 reg_val);
 130
 131         IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
 132                        radio_cfg_step, radio_cfg_dash);
 133
 134         /*
 135          * W/A : NIC is stuck in a reset state after Early PCIe power off
 136          * (PCIe power is lost before PERST# is asserted), causing ME FW
 137          * to lose ownership and not being able to obtain it back.
 138          */
 139         if (!mvm->trans->cfg->apmg_not_supported)
 140                 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
 141                                        APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
 142                                        ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
 143 }
 144
 145 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm,
 146                                      struct iwl_rx_cmd_buffer *rxb)
 147 {
 148         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 149         struct iwl_datapath_monitor_notif *notif = (void *)pkt->data;
 150         struct ieee80211_supported_band *sband;
 151         const struct ieee80211_sta_he_cap *he_cap;
 152         struct ieee80211_vif *vif;
 153
 154         if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA))
 155                 return;
 156
 157         vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id);
 158         if (!vif || vif->type != NL80211_IFTYPE_STATION)
 159                 return;
 160
 161         if (!vif->bss_conf.chandef.chan ||
 162             vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ ||
 163             vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40)
 164                 return;
 165
 166         if (!vif->bss_conf.assoc)
 167                 return;
 168
 169         /* this shouldn't happen *again*, ignore it */
 170         if (mvm->cca_40mhz_workaround)
 171                 return;
 172
 173         /*
 174          * We'll decrement this on disconnect - so set to 2 since we'll
 175          * still have to disconnect from the current AP first.
 176          */
 177         mvm->cca_40mhz_workaround = 2;
 178
 179         /*
 180          * This capability manipulation isn't really ideal, but it's the
 181          * easiest choice - otherwise we'd have to do some major changes
 182          * in mac80211 to support this, which isn't worth it. This does
 183          * mean that userspace may have outdated information, but that's
 184          * actually not an issue at all.
 185          */
 186         sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
 187
 188         WARN_ON(!sband->ht_cap.ht_supported);
 189         WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40));
 190         sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 191
 192         he_cap = ieee80211_get_he_iftype_cap(sband,
 193                                              ieee80211_vif_type_p2p(vif));
 194
 195         if (he_cap) {
 196                 /* we know that ours is writable */
 197                 struct ieee80211_sta_he_cap *he = (void *)he_cap;
 198
 199                 WARN_ON(!he->has_he);
 200                 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] &
 201                                 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G));
 202                 he->he_cap_elem.phy_cap_info[0] &=
 203                         ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
 204         }
 205
 206         ieee80211_disconnect(vif, true);
 207 }
 208
 209 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif)
 210 {
 211         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 212         struct iwl_mvm *mvm = mvmvif->mvm;
 213         enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC;
 214
 215         if (mvm->fw_static_smps_request &&
 216             vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 &&
 217             vif->bss_conf.he_support)
 218                 mode = IEEE80211_SMPS_STATIC;
 219
 220         iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode);
 221 }
 222
 223 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac,
 224                                         struct ieee80211_vif *vif)
 225 {
 226         iwl_mvm_apply_fw_smps_request(vif);
 227 }
 228
 229 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm,
 230                                               struct iwl_rx_cmd_buffer *rxb)
 231 {
 232         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 233         struct iwl_thermal_dual_chain_request *req = (void *)pkt->data;
 234
 235         /*
 236          * We could pass it to the iterator data, but also need to remember
 237          * it for new interfaces that are added while in this state.
 238          */
 239         mvm->fw_static_smps_request =
 240                 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE);
 241         ieee80211_iterate_interfaces(mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 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  * @context: see &iwl_rx_handler_context
 265  * @fn: the function is called when notification is received
 266  */
 267 struct iwl_rx_handlers {
 268         u16 cmd_id, min_size;
 269         enum iwl_rx_handler_context context;
 270         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
 271 };
 272
 273 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context)              \
 274         { .cmd_id = _cmd_id, .fn = _fn, .context = _context, }
 275 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context)       \
 276         { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, }
 277 #define RX_HANDLER(_cmd_id, _fn, _context, _struct)             \
 278         { .cmd_id = _cmd_id, .fn = _fn,                         \
 279           .context = _context, .min_size = sizeof(_struct), }
 280 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct)      \
 281         { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn,             \
 282           .context = _context, .min_size = sizeof(_struct), }
 283
 284 /*
 285  * Handlers for fw notifications
 286  * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
 287  * This list should be in order of frequency for performance purposes.
 288  *
 289  * The handler can be one from three contexts, see &iwl_rx_handler_context
 290  */
 291 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
 292         RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC,
 293                    struct iwl_mvm_tx_resp),
 294         RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC,
 295                    struct iwl_mvm_ba_notif),
 296
 297         RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF,
 298                        iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC,
 299                        struct iwl_tlc_update_notif),
 300
 301         RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif,
 302                    RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif),
 303         RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif,
 304                            RX_HANDLER_ASYNC_LOCKED),
 305         RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics,
 306                            RX_HANDLER_ASYNC_LOCKED),
 307
 308         RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID,
 309                    iwl_mvm_window_status_notif, RX_HANDLER_SYNC,
 310                    struct iwl_ba_window_status_notif),
 311
 312         RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif,
 313                    RX_HANDLER_SYNC, struct iwl_time_event_notif),
 314         RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF,
 315                        iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC,
 316                        struct iwl_mvm_session_prot_notif),
 317         RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc,
 318                    RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif),
 319
 320         RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC,
 321                    struct iwl_mvm_eosp_notification),
 322
 323         RX_HANDLER(SCAN_ITERATION_COMPLETE,
 324                    iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC,
 325                    struct iwl_lmac_scan_complete_notif),
 326         RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
 327                    iwl_mvm_rx_lmac_scan_complete_notif,
 328                    RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete),
 329         RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION,
 330                            iwl_mvm_rx_scan_match_found,
 331                            RX_HANDLER_SYNC),
 332         RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
 333                    RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete),
 334         RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
 335                    iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC,
 336                    struct iwl_umac_scan_iter_complete_notif),
 337
 338         RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif,
 339                    RX_HANDLER_SYNC, struct iwl_card_state_notif),
 340
 341         RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
 342                    RX_HANDLER_SYNC, struct iwl_missed_beacons_notif),
 343
 344         RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC,
 345                    struct iwl_error_resp),
 346         RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
 347                    iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC,
 348                    struct iwl_uapsd_misbehaving_ap_notif),
 349         RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif,
 350                            RX_HANDLER_ASYNC_LOCKED),
 351         RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
 352                                iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED),
 353         RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
 354                        iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC,
 355                        struct ct_kill_notif),
 356
 357         RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
 358                    RX_HANDLER_ASYNC_LOCKED,
 359                    struct iwl_tdls_channel_switch_notif),
 360         RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif,
 361                    RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1),
 362         RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS,
 363                        iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED,
 364                        struct iwl_ftm_responder_stats),
 365
 366         RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF,
 367                                iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED),
 368         RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF,
 369                                iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED),
 370
 371         RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF,
 372                        iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC,
 373                        struct iwl_mfu_assert_dump_notif),
 374         RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
 375                        iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC,
 376                        struct iwl_stored_beacon_notif_v2),
 377         RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF,
 378                        iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC,
 379                        struct iwl_mu_group_mgmt_notif),
 380         RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF,
 381                        iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC,
 382                        struct iwl_mvm_pm_state_notification),
 383         RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF,
 384                        iwl_mvm_probe_resp_data_notif,
 385                        RX_HANDLER_ASYNC_LOCKED,
 386                        struct iwl_probe_resp_data_notif),
 387         RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_NOA_NOTIF,
 388                        iwl_mvm_channel_switch_noa_notif,
 389                        RX_HANDLER_SYNC, struct iwl_channel_switch_noa_notif),
 390         RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF,
 391                        iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED,
 392                        struct iwl_datapath_monitor_notif),
 393
 394         RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST,
 395                        iwl_mvm_rx_thermal_dual_chain_req,
 396                        RX_HANDLER_ASYNC_LOCKED,
 397                        struct iwl_thermal_dual_chain_request),
 398 };
 399 #undef RX_HANDLER
 400 #undef RX_HANDLER_GRP
 401
 402 /* Please keep this array *SORTED* by hex value.
 403  * Access is done through binary search
 404  */
 405 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
 406         HCMD_NAME(UCODE_ALIVE_NTFY),
 407         HCMD_NAME(REPLY_ERROR),
 408         HCMD_NAME(ECHO_CMD),
 409         HCMD_NAME(INIT_COMPLETE_NOTIF),
 410         HCMD_NAME(PHY_CONTEXT_CMD),
 411         HCMD_NAME(DBG_CFG),
 412         HCMD_NAME(SCAN_CFG_CMD),
 413         HCMD_NAME(SCAN_REQ_UMAC),
 414         HCMD_NAME(SCAN_ABORT_UMAC),
 415         HCMD_NAME(SCAN_COMPLETE_UMAC),
 416         HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
 417         HCMD_NAME(ADD_STA_KEY),
 418         HCMD_NAME(ADD_STA),
 419         HCMD_NAME(REMOVE_STA),
 420         HCMD_NAME(FW_GET_ITEM_CMD),
 421         HCMD_NAME(TX_CMD),
 422         HCMD_NAME(SCD_QUEUE_CFG),
 423         HCMD_NAME(TXPATH_FLUSH),
 424         HCMD_NAME(MGMT_MCAST_KEY),
 425         HCMD_NAME(WEP_KEY),
 426         HCMD_NAME(SHARED_MEM_CFG),
 427         HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
 428         HCMD_NAME(MAC_CONTEXT_CMD),
 429         HCMD_NAME(TIME_EVENT_CMD),
 430         HCMD_NAME(TIME_EVENT_NOTIFICATION),
 431         HCMD_NAME(BINDING_CONTEXT_CMD),
 432         HCMD_NAME(TIME_QUOTA_CMD),
 433         HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
 434         HCMD_NAME(LEDS_CMD),
 435         HCMD_NAME(LQ_CMD),
 436         HCMD_NAME(FW_PAGING_BLOCK_CMD),
 437         HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
 438         HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
 439         HCMD_NAME(HOT_SPOT_CMD),
 440         HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
 441         HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
 442         HCMD_NAME(BT_COEX_CI),
 443         HCMD_NAME(PHY_CONFIGURATION_CMD),
 444         HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
 445         HCMD_NAME(PHY_DB_CMD),
 446         HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
 447         HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
 448         HCMD_NAME(POWER_TABLE_CMD),
 449         HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
 450         HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
 451         HCMD_NAME(DC2DC_CONFIG_CMD),
 452         HCMD_NAME(NVM_ACCESS_CMD),
 453         HCMD_NAME(BEACON_NOTIFICATION),
 454         HCMD_NAME(BEACON_TEMPLATE_CMD),
 455         HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
 456         HCMD_NAME(BT_CONFIG),
 457         HCMD_NAME(STATISTICS_CMD),
 458         HCMD_NAME(STATISTICS_NOTIFICATION),
 459         HCMD_NAME(EOSP_NOTIFICATION),
 460         HCMD_NAME(REDUCE_TX_POWER_CMD),
 461         HCMD_NAME(CARD_STATE_NOTIFICATION),
 462         HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
 463         HCMD_NAME(TDLS_CONFIG_CMD),
 464         HCMD_NAME(MAC_PM_POWER_TABLE),
 465         HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
 466         HCMD_NAME(MFUART_LOAD_NOTIFICATION),
 467         HCMD_NAME(RSS_CONFIG_CMD),
 468         HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
 469         HCMD_NAME(REPLY_RX_PHY_CMD),
 470         HCMD_NAME(REPLY_RX_MPDU_CMD),
 471         HCMD_NAME(BAR_FRAME_RELEASE),
 472         HCMD_NAME(FRAME_RELEASE),
 473         HCMD_NAME(BA_NOTIF),
 474         HCMD_NAME(MCC_UPDATE_CMD),
 475         HCMD_NAME(MCC_CHUB_UPDATE_CMD),
 476         HCMD_NAME(MARKER_CMD),
 477         HCMD_NAME(BT_PROFILE_NOTIFICATION),
 478         HCMD_NAME(BCAST_FILTER_CMD),
 479         HCMD_NAME(MCAST_FILTER_CMD),
 480         HCMD_NAME(REPLY_SF_CFG_CMD),
 481         HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
 482         HCMD_NAME(D3_CONFIG_CMD),
 483         HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
 484         HCMD_NAME(OFFLOADS_QUERY_CMD),
 485         HCMD_NAME(MATCH_FOUND_NOTIFICATION),
 486         HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
 487         HCMD_NAME(WOWLAN_PATTERNS),
 488         HCMD_NAME(WOWLAN_CONFIGURATION),
 489         HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
 490         HCMD_NAME(WOWLAN_TKIP_PARAM),
 491         HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
 492         HCMD_NAME(WOWLAN_GET_STATUSES),
 493         HCMD_NAME(SCAN_ITERATION_COMPLETE),
 494         HCMD_NAME(D0I3_END_CMD),
 495         HCMD_NAME(LTR_CONFIG),
 496         HCMD_NAME(LDBG_CONFIG_CMD),
 497 };
 498
 499 /* Please keep this array *SORTED* by hex value.
 500  * Access is done through binary search
 501  */
 502 static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
 503         HCMD_NAME(SHARED_MEM_CFG_CMD),
 504         HCMD_NAME(INIT_EXTENDED_CFG_CMD),
 505         HCMD_NAME(FW_ERROR_RECOVERY_CMD),
 506 };
 507
 508 /* Please keep this array *SORTED* by hex value.
 509  * Access is done through binary search
 510  */
 511 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
 512         HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD),
 513         HCMD_NAME(SESSION_PROTECTION_CMD),
 514         HCMD_NAME(SESSION_PROTECTION_NOTIF),
 515         HCMD_NAME(CHANNEL_SWITCH_NOA_NOTIF),
 516 };
 517
 518 /* Please keep this array *SORTED* by hex value.
 519  * Access is done through binary search
 520  */
 521 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
 522         HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
 523         HCMD_NAME(CTDP_CONFIG_CMD),
 524         HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
 525         HCMD_NAME(GEO_TX_POWER_LIMIT),
 526         HCMD_NAME(CT_KILL_NOTIFICATION),
 527         HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
 528 };
 529
 530 /* Please keep this array *SORTED* by hex value.
 531  * Access is done through binary search
 532  */
 533 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
 534         HCMD_NAME(DQA_ENABLE_CMD),
 535         HCMD_NAME(UPDATE_MU_GROUPS_CMD),
 536         HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
 537         HCMD_NAME(STA_HE_CTXT_CMD),
 538         HCMD_NAME(RFH_QUEUE_CONFIG_CMD),
 539         HCMD_NAME(TLC_MNG_CONFIG_CMD),
 540         HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD),
 541         HCMD_NAME(MONITOR_NOTIF),
 542         HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST),
 543         HCMD_NAME(STA_PM_NOTIF),
 544         HCMD_NAME(MU_GROUP_MGMT_NOTIF),
 545         HCMD_NAME(RX_QUEUES_NOTIFICATION),
 546 };
 547
 548 /* Please keep this array *SORTED* by hex value.
 549  * Access is done through binary search
 550  */
 551 static const struct iwl_hcmd_names iwl_mvm_location_names[] = {
 552         HCMD_NAME(TOF_RANGE_REQ_CMD),
 553         HCMD_NAME(TOF_CONFIG_CMD),
 554         HCMD_NAME(TOF_RANGE_ABORT_CMD),
 555         HCMD_NAME(TOF_RANGE_REQ_EXT_CMD),
 556         HCMD_NAME(TOF_RESPONDER_CONFIG_CMD),
 557         HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD),
 558         HCMD_NAME(TOF_LC_NOTIF),
 559         HCMD_NAME(TOF_RESPONDER_STATS),
 560         HCMD_NAME(TOF_MCSI_DEBUG_NOTIF),
 561         HCMD_NAME(TOF_RANGE_RESPONSE_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_prot_offload_names[] = {
 568         HCMD_NAME(STORED_BEACON_NTF),
 569 };
 570
 571 /* Please keep this array *SORTED* by hex value.
 572  * Access is done through binary search
 573  */
 574 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = {
 575         HCMD_NAME(NVM_ACCESS_COMPLETE),
 576         HCMD_NAME(NVM_GET_INFO),
 577         HCMD_NAME(TAS_CONFIG),
 578 };
 579
 580 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
 581         [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 582         [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 583         [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
 584         [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
 585         [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
 586         [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
 587         [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names),
 588         [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
 589         [REGULATORY_AND_NVM_GROUP] =
 590                 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),
 591 };
 592
 593 /* this forward declaration can avoid to export the function */
 594 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
 595
 596 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm)
 597 {
 598         const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs;
 599         u64 dflt_pwr_limit;
 600
 601         if (!backoff)
 602                 return 0;
 603
 604         dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev);
 605
 606         while (backoff->pwr) {
 607                 if (dflt_pwr_limit >= backoff->pwr)
 608                         return backoff->backoff;
 609
 610                 backoff++;
 611         }
 612
 613         return 0;
 614 }
 615
 616 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
 617 {
 618         struct iwl_mvm *mvm =
 619                 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
 620         struct ieee80211_vif *tx_blocked_vif;
 621         struct iwl_mvm_vif *mvmvif;
 622
 623         mutex_lock(&mvm->mutex);
 624
 625         tx_blocked_vif =
 626                 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
 627                                           lockdep_is_held(&mvm->mutex));
 628
 629         if (!tx_blocked_vif)
 630                 goto unlock;
 631
 632         mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
 633         iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
 634         RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
 635 unlock:
 636         mutex_unlock(&mvm->mutex);
 637 }
 638
 639 static int iwl_mvm_fwrt_dump_start(void *ctx)
 640 {
 641         struct iwl_mvm *mvm = ctx;
 642
 643         mutex_lock(&mvm->mutex);
 644
 645         return 0;
 646 }
 647
 648 static void iwl_mvm_fwrt_dump_end(void *ctx)
 649 {
 650         struct iwl_mvm *mvm = ctx;
 651
 652         mutex_unlock(&mvm->mutex);
 653 }
 654
 655 static bool iwl_mvm_fwrt_fw_running(void *ctx)
 656 {
 657         return iwl_mvm_firmware_running(ctx);
 658 }
 659
 660 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd)
 661 {
 662         struct iwl_mvm *mvm = (struct iwl_mvm *)ctx;
 663         int ret;
 664
 665         mutex_lock(&mvm->mutex);
 666         ret = iwl_mvm_send_cmd(mvm, host_cmd);
 667         mutex_unlock(&mvm->mutex);
 668
 669         return ret;
 670 }
 671
 672 static bool iwl_mvm_d3_debug_enable(void *ctx)
 673 {
 674         return IWL_MVM_D3_DEBUG;
 675 }
 676
 677 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
 678         .dump_start = iwl_mvm_fwrt_dump_start,
 679         .dump_end = iwl_mvm_fwrt_dump_end,
 680         .fw_running = iwl_mvm_fwrt_fw_running,
 681         .send_hcmd = iwl_mvm_fwrt_send_hcmd,
 682         .d3_debug_enable = iwl_mvm_d3_debug_enable,
 683 };
 684
 685 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm)
 686 {
 687         int ret;
 688
 689         rtnl_lock();
 690         mutex_lock(&mvm->mutex);
 691
 692         ret = iwl_run_init_mvm_ucode(mvm);
 693
 694         if (ret && ret != -ERFKILL)
 695                 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER);
 696         if (!ret && iwl_mvm_is_lar_supported(mvm)) {
 697                 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
 698                 ret = iwl_mvm_init_mcc(mvm);
 699         }
 700
 701         if (!iwlmvm_mod_params.init_dbg || !ret)
 702                 iwl_mvm_stop_device(mvm);
 703
 704         mutex_unlock(&mvm->mutex);
 705         rtnl_unlock();
 706
 707         if (ret < 0)
 708                 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
 709
 710         return ret;
 711 }
 712
 713 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm)
 714 {
 715         int ret;
 716
 717         iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
 718
 719         ret = iwl_mvm_mac_setup_register(mvm);
 720         if (ret)
 721                 return ret;
 722         mvm->hw_registered = true;
 723
 724         iwl_mvm_dbgfs_register(mvm);
 725
 726         return 0;
 727 }
 728
 729 static struct iwl_op_mode *
 730 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 731                       const struct iwl_fw *fw, struct dentry *dbgfs_dir)
 732 {
 733         struct ieee80211_hw *hw;
 734         struct iwl_op_mode *op_mode;
 735         struct iwl_mvm *mvm;
 736         struct iwl_trans_config trans_cfg = {};
 737         static const u8 no_reclaim_cmds[] = {
 738                 TX_CMD,
 739         };
 740         int err, scan_size;
 741         u32 min_backoff;
 742         enum iwl_amsdu_size rb_size_default;
 743
 744         /*
 745          * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station
 746          * index all over the driver - check that its value corresponds to the
 747          * array size.
 748          */
 749         BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) !=
 750                      IWL_MVM_STATION_COUNT_MAX);
 751
 752         /********************************
 753          * 1. Allocating and configuring HW data
 754          ********************************/
 755         hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
 756                                 sizeof(struct iwl_mvm),
 757                                 &iwl_mvm_hw_ops);
 758         if (!hw)
 759                 return NULL;
 760
 761         hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
 762
 763         if (cfg->max_tx_agg_size)
 764                 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
 765         else
 766                 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
 767
 768         op_mode = hw->priv;
 769
 770         mvm = IWL_OP_MODE_GET_MVM(op_mode);
 771         mvm->dev = trans->dev;
 772         mvm->trans = trans;
 773         mvm->cfg = cfg;
 774         mvm->fw = fw;
 775         mvm->hw = hw;
 776
 777         iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm,
 778                             dbgfs_dir);
 779
 780         iwl_mvm_get_acpi_tables(mvm);
 781
 782         mvm->init_status = 0;
 783
 784         if (iwl_mvm_has_new_rx_api(mvm)) {
 785                 op_mode->ops = &iwl_mvm_ops_mq;
 786                 trans->rx_mpdu_cmd_hdr_size =
 787                         (trans->trans_cfg->device_family >=
 788                          IWL_DEVICE_FAMILY_AX210) ?
 789                         sizeof(struct iwl_rx_mpdu_desc) :
 790                         IWL_RX_DESC_SIZE_V1;
 791         } else {
 792                 op_mode->ops = &iwl_mvm_ops;
 793                 trans->rx_mpdu_cmd_hdr_size =
 794                         sizeof(struct iwl_rx_mpdu_res_start);
 795
 796                 if (WARN_ON(trans->num_rx_queues > 1))
 797                         goto out_free;
 798         }
 799
 800         mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
 801
 802         if (iwl_mvm_has_new_tx_api(mvm)) {
 803                 /*
 804                  * If we have the new TX/queue allocation API initialize them
 805                  * all to invalid numbers. We'll rewrite the ones that we need
 806                  * later, but that doesn't happen for all of them all of the
 807                  * time (e.g. P2P Device is optional), and if a dynamic queue
 808                  * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then
 809                  * iwl_mvm_is_static_queue() erroneously returns true, and we
 810                  * might have things getting stuck.
 811                  */
 812                 mvm->aux_queue = IWL_MVM_INVALID_QUEUE;
 813                 mvm->snif_queue = IWL_MVM_INVALID_QUEUE;
 814                 mvm->probe_queue = IWL_MVM_INVALID_QUEUE;
 815                 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE;
 816         } else {
 817                 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
 818                 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE;
 819                 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
 820                 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
 821         }
 822
 823         mvm->sf_state = SF_UNINIT;
 824         if (iwl_mvm_has_unified_ucode(mvm))
 825                 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR);
 826         else
 827                 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT);
 828         mvm->drop_bcn_ap_mode = true;
 829
 830         mutex_init(&mvm->mutex);
 831         spin_lock_init(&mvm->async_handlers_lock);
 832         INIT_LIST_HEAD(&mvm->time_event_list);
 833         INIT_LIST_HEAD(&mvm->aux_roc_te_list);
 834         INIT_LIST_HEAD(&mvm->async_handlers_list);
 835         spin_lock_init(&mvm->time_event_lock);
 836         INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list);
 837         INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list);
 838         INIT_LIST_HEAD(&mvm->resp_pasn_list);
 839
 840         INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
 841         INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
 842         INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
 843         INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
 844         INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
 845         INIT_LIST_HEAD(&mvm->add_stream_txqs);
 846
 847         init_waitqueue_head(&mvm->rx_sync_waitq);
 848
 849         mvm->queue_sync_state = 0;
 850
 851         SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
 852
 853         spin_lock_init(&mvm->tcm.lock);
 854         INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work);
 855         mvm->tcm.ts = jiffies;
 856         mvm->tcm.ll_ts = jiffies;
 857         mvm->tcm.uapsd_nonagg_ts = jiffies;
 858
 859         INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
 860
 861         mvm->cmd_ver.d0i3_resp =
 862                 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD,
 863                                         0);
 864         /* we only support version 1 */
 865         if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1))
 866                 goto out_free;
 867
 868         mvm->cmd_ver.range_resp =
 869                 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP,
 870                                         TOF_RANGE_RESPONSE_NOTIF, 5);
 871         /* we only support up to version 8 */
 872         if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 8))
 873                 goto out_free;
 874
 875         /*
 876          * Populate the state variables that the transport layer needs
 877          * to know about.
 878          */
 879         trans_cfg.op_mode = op_mode;
 880         trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
 881         trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
 882
 883         if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
 884                 rb_size_default = IWL_AMSDU_2K;
 885         else
 886                 rb_size_default = IWL_AMSDU_4K;
 887
 888         switch (iwlwifi_mod_params.amsdu_size) {
 889         case IWL_AMSDU_DEF:
 890                 trans_cfg.rx_buf_size = rb_size_default;
 891                 break;
 892         case IWL_AMSDU_4K:
 893                 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
 894                 break;
 895         case IWL_AMSDU_8K:
 896                 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
 897                 break;
 898         case IWL_AMSDU_12K:
 899                 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
 900                 break;
 901         default:
 902                 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
 903                        iwlwifi_mod_params.amsdu_size);
 904                 trans_cfg.rx_buf_size = rb_size_default;
 905         }
 906
 907         trans->wide_cmd_header = true;
 908         trans_cfg.bc_table_dword =
 909                 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210;
 910
 911         trans_cfg.command_groups = iwl_mvm_groups;
 912         trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
 913
 914         trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
 915         trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
 916         trans_cfg.scd_set_active = true;
 917
 918         trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
 919                                           driver_data[2]);
 920
 921         /* Set a short watchdog for the command queue */
 922         trans_cfg.cmd_q_wdg_timeout =
 923                 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
 924
 925         snprintf(mvm->hw->wiphy->fw_version,
 926                  sizeof(mvm->hw->wiphy->fw_version),
 927                  "%s", fw->fw_version);
 928
 929         trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa,
 930                                                    IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE);
 931
 932         /* Configure transport layer */
 933         iwl_trans_configure(mvm->trans, &trans_cfg);
 934
 935         trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
 936         trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv;
 937         trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg;
 938         memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv,
 939                sizeof(trans->dbg.conf_tlv));
 940         trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv;
 941
 942         trans->iml = mvm->fw->iml;
 943         trans->iml_len = mvm->fw->iml_len;
 944
 945         /* set up notification wait support */
 946         iwl_notification_wait_init(&mvm->notif_wait);
 947
 948         /* Init phy db */
 949         mvm->phy_db = iwl_phy_db_init(trans);
 950         if (!mvm->phy_db) {
 951                 IWL_ERR(mvm, "Cannot init phy_db\n");
 952                 goto out_free;
 953         }
 954
 955         IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
 956                  mvm->trans->name, mvm->trans->hw_rev);
 957
 958         if (iwlwifi_mod_params.nvm_file)
 959                 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
 960         else
 961                 IWL_DEBUG_EEPROM(mvm->trans->dev,
 962                                  "working without external nvm file\n");
 963
 964         err = iwl_trans_start_hw(mvm->trans);
 965         if (err)
 966                 goto out_free;
 967
 968         scan_size = iwl_mvm_scan_size(mvm);
 969
 970         mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
 971         if (!mvm->scan_cmd)
 972                 goto out_free;
 973
 974         /* invalidate ids to prevent accidental removal of sta_id 0 */
 975         mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA;
 976         mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA;
 977
 978         /* Set EBS as successful as long as not stated otherwise by the FW. */
 979         mvm->last_ebs_successful = true;
 980
 981         min_backoff = iwl_mvm_min_backoff(mvm);
 982         iwl_mvm_thermal_initialize(mvm, min_backoff);
 983
 984         if (!iwl_mvm_has_new_rx_stats_api(mvm))
 985                 memset(&mvm->rx_stats_v3, 0,
 986                        sizeof(struct mvm_statistics_rx_v3));
 987         else
 988                 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
 989
 990         mvm->debugfs_dir = dbgfs_dir;
 991
 992         if (iwl_mvm_start_get_nvm(mvm))
 993                 goto out_thermal_exit;
 994
 995         if (iwl_mvm_start_post_nvm(mvm))
 996                 goto out_thermal_exit;
 997
 998         return op_mode;
 999
1000  out_thermal_exit:
1001         iwl_mvm_thermal_exit(mvm);
1002  out_free:
1003         iwl_fw_flush_dumps(&mvm->fwrt);
1004         iwl_fw_runtime_free(&mvm->fwrt);
1005
1006         if (iwlmvm_mod_params.init_dbg)
1007                 return op_mode;
1008         iwl_phy_db_free(mvm->phy_db);
1009         kfree(mvm->scan_cmd);
1010         iwl_trans_op_mode_leave(trans);
1011
1012         ieee80211_free_hw(mvm->hw);
1013         return NULL;
1014 }
1015
1016 void iwl_mvm_stop_device(struct iwl_mvm *mvm)
1017 {
1018         lockdep_assert_held(&mvm->mutex);
1019
1020         iwl_fw_cancel_timestamp(&mvm->fwrt);
1021
1022         clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1023
1024         iwl_fw_dbg_stop_sync(&mvm->fwrt);
1025         iwl_trans_stop_device(mvm->trans);
1026         iwl_free_fw_paging(&mvm->fwrt);
1027         iwl_fw_dump_conf_clear(&mvm->fwrt);
1028 }
1029
1030 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
1031 {
1032         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1033         int i;
1034
1035         iwl_mvm_leds_exit(mvm);
1036
1037         iwl_mvm_thermal_exit(mvm);
1038
1039         ieee80211_unregister_hw(mvm->hw);
1040
1041         kfree(mvm->scan_cmd);
1042         kfree(mvm->mcast_filter_cmd);
1043         mvm->mcast_filter_cmd = NULL;
1044
1045         kfree(mvm->error_recovery_buf);
1046         mvm->error_recovery_buf = NULL;
1047
1048         iwl_trans_op_mode_leave(mvm->trans);
1049
1050         iwl_phy_db_free(mvm->phy_db);
1051         mvm->phy_db = NULL;
1052
1053         kfree(mvm->nvm_data);
1054         for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
1055                 kfree(mvm->nvm_sections[i].data);
1056
1057         cancel_delayed_work_sync(&mvm->tcm.work);
1058
1059         iwl_fw_runtime_free(&mvm->fwrt);
1060         mutex_destroy(&mvm->mutex);
1061
1062         ieee80211_free_hw(mvm->hw);
1063 }
1064
1065 struct iwl_async_handler_entry {
1066         struct list_head list;
1067         struct iwl_rx_cmd_buffer rxb;
1068         enum iwl_rx_handler_context context;
1069         void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1070 };
1071
1072 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
1073 {
1074         struct iwl_async_handler_entry *entry, *tmp;
1075
1076         spin_lock_bh(&mvm->async_handlers_lock);
1077         list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
1078                 iwl_free_rxb(&entry->rxb);
1079                 list_del(&entry->list);
1080                 kfree(entry);
1081         }
1082         spin_unlock_bh(&mvm->async_handlers_lock);
1083 }
1084
1085 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
1086 {
1087         struct iwl_mvm *mvm =
1088                 container_of(wk, struct iwl_mvm, async_handlers_wk);
1089         struct iwl_async_handler_entry *entry, *tmp;
1090         LIST_HEAD(local_list);
1091
1092         /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
1093
1094         /*
1095          * Sync with Rx path with a lock. Remove all the entries from this list,
1096          * add them to a local one (lock free), and then handle them.
1097          */
1098         spin_lock_bh(&mvm->async_handlers_lock);
1099         list_splice_init(&mvm->async_handlers_list, &local_list);
1100         spin_unlock_bh(&mvm->async_handlers_lock);
1101
1102         list_for_each_entry_safe(entry, tmp, &local_list, list) {
1103                 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1104                         mutex_lock(&mvm->mutex);
1105                 entry->fn(mvm, &entry->rxb);
1106                 iwl_free_rxb(&entry->rxb);
1107                 list_del(&entry->list);
1108                 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1109                         mutex_unlock(&mvm->mutex);
1110                 kfree(entry);
1111         }
1112 }
1113
1114 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
1115                                             struct iwl_rx_packet *pkt)
1116 {
1117         struct iwl_fw_dbg_trigger_tlv *trig;
1118         struct iwl_fw_dbg_trigger_cmd *cmds_trig;
1119         int i;
1120
1121         trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
1122                                      FW_DBG_TRIGGER_FW_NOTIF);
1123         if (!trig)
1124                 return;
1125
1126         cmds_trig = (void *)trig->data;
1127
1128         for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
1129                 /* don't collect on CMD 0 */
1130                 if (!cmds_trig->cmds[i].cmd_id)
1131                         break;
1132
1133                 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
1134                     cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
1135                         continue;
1136
1137                 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
1138                                         "CMD 0x%02x.%02x received",
1139                                         pkt->hdr.group_id, pkt->hdr.cmd);
1140                 break;
1141         }
1142 }
1143
1144 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
1145                               struct iwl_rx_cmd_buffer *rxb,
1146                               struct iwl_rx_packet *pkt)
1147 {
1148         unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);
1149         int i;
1150         union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt };
1151
1152         iwl_dbg_tlv_time_point(&mvm->fwrt,
1153                                IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data);
1154         iwl_mvm_rx_check_trigger(mvm, pkt);
1155
1156         /*
1157          * Do the notification wait before RX handlers so
1158          * even if the RX handler consumes the RXB we have
1159          * access to it in the notification wait entry.
1160          */
1161         iwl_notification_wait_notify(&mvm->notif_wait, pkt);
1162
1163         for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
1164                 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
1165                 struct iwl_async_handler_entry *entry;
1166
1167                 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
1168                         continue;
1169
1170                 if (unlikely(pkt_len < rx_h->min_size))
1171                         return;
1172
1173                 if (rx_h->context == RX_HANDLER_SYNC) {
1174                         rx_h->fn(mvm, rxb);
1175                         return;
1176                 }
1177
1178                 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
1179                 /* we can't do much... */
1180                 if (!entry)
1181                         return;
1182
1183                 entry->rxb._page = rxb_steal_page(rxb);
1184                 entry->rxb._offset = rxb->_offset;
1185                 entry->rxb._rx_page_order = rxb->_rx_page_order;
1186                 entry->fn = rx_h->fn;
1187                 entry->context = rx_h->context;
1188                 spin_lock(&mvm->async_handlers_lock);
1189                 list_add_tail(&entry->list, &mvm->async_handlers_list);
1190                 spin_unlock(&mvm->async_handlers_lock);
1191                 schedule_work(&mvm->async_handlers_wk);
1192                 break;
1193         }
1194 }
1195
1196 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
1197                        struct napi_struct *napi,
1198                        struct iwl_rx_cmd_buffer *rxb)
1199 {
1200         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1201         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1202         u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1203
1204         if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1205                 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
1206         else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
1207                 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
1208         else
1209                 iwl_mvm_rx_common(mvm, rxb, pkt);
1210 }
1211
1212 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
1213                    struct napi_struct *napi,
1214                    struct iwl_rx_cmd_buffer *rxb)
1215 {
1216         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1217         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1218         u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1219
1220         if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1221                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
1222         else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1223                                          RX_QUEUES_NOTIFICATION)))
1224                 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0);
1225         else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
1226                 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
1227         else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE))
1228                 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0);
1229         else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF))
1230                 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0);
1231         else
1232                 iwl_mvm_rx_common(mvm, rxb, pkt);
1233 }
1234
1235 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1236                              const struct iwl_device_cmd *cmd)
1237 {
1238         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1239
1240         /*
1241          * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1242          * commands that need to block the Tx queues.
1243          */
1244         iwl_trans_block_txq_ptrs(mvm->trans, false);
1245 }
1246
1247 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue)
1248 {
1249         return queue == mvm->aux_queue || queue == mvm->probe_queue ||
1250                 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue;
1251 }
1252
1253 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode,
1254                                        int hw_queue, bool start)
1255 {
1256         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1257         struct ieee80211_sta *sta;
1258         struct ieee80211_txq *txq;
1259         struct iwl_mvm_txq *mvmtxq;
1260         int i;
1261         unsigned long tid_bitmap;
1262         struct iwl_mvm_sta *mvmsta;
1263         u8 sta_id;
1264
1265         sta_id = iwl_mvm_has_new_tx_api(mvm) ?
1266                 mvm->tvqm_info[hw_queue].sta_id :
1267                 mvm->queue_info[hw_queue].ra_sta_id;
1268
1269         if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations))
1270                 return;
1271
1272         rcu_read_lock();
1273
1274         sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1275         if (IS_ERR_OR_NULL(sta))
1276                 goto out;
1277         mvmsta = iwl_mvm_sta_from_mac80211(sta);
1278
1279         if (iwl_mvm_is_static_queue(mvm, hw_queue)) {
1280                 if (!start)
1281                         ieee80211_stop_queues(mvm->hw);
1282                 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1283                         ieee80211_wake_queues(mvm->hw);
1284
1285                 goto out;
1286         }
1287
1288         if (iwl_mvm_has_new_tx_api(mvm)) {
1289                 int tid = mvm->tvqm_info[hw_queue].txq_tid;
1290
1291                 tid_bitmap = BIT(tid);
1292         } else {
1293                 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap;
1294         }
1295
1296         for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1297                 int tid = i;
1298
1299                 if (tid == IWL_MAX_TID_COUNT)
1300                         tid = IEEE80211_NUM_TIDS;
1301
1302                 txq = sta->txq[tid];
1303                 mvmtxq = iwl_mvm_txq_from_mac80211(txq);
1304                 mvmtxq->stopped = !start;
1305
1306                 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1307                         iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
1308         }
1309
1310 out:
1311         rcu_read_unlock();
1312 }
1313
1314 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1315 {
1316         iwl_mvm_queue_state_change(op_mode, hw_queue, false);
1317 }
1318
1319 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1320 {
1321         iwl_mvm_queue_state_change(op_mode, hw_queue, true);
1322 }
1323
1324 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm)
1325 {
1326         bool state = iwl_mvm_is_radio_killed(mvm);
1327
1328         if (state)
1329                 wake_up(&mvm->rx_sync_waitq);
1330
1331         wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
1332 }
1333
1334 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1335 {
1336         if (state)
1337                 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1338         else
1339                 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1340
1341         iwl_mvm_set_rfkill_state(mvm);
1342 }
1343
1344 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
1345 {
1346         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1347         bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done);
1348         bool unified = iwl_mvm_has_unified_ucode(mvm);
1349
1350         if (state)
1351                 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1352         else
1353                 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1354
1355         iwl_mvm_set_rfkill_state(mvm);
1356
1357          /* iwl_run_init_mvm_ucode is waiting for results, abort it. */
1358         if (rfkill_safe_init_done)
1359                 iwl_abort_notification_waits(&mvm->notif_wait);
1360
1361         /*
1362          * Don't ask the transport to stop the firmware. We'll do it
1363          * after cfg80211 takes us down.
1364          */
1365         if (unified)
1366                 return false;
1367
1368         /*
1369          * Stop the device if we run OPERATIONAL firmware or if we are in the
1370          * middle of the calibrations.
1371          */
1372         return state && rfkill_safe_init_done;
1373 }
1374
1375 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1376 {
1377         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1378         struct ieee80211_tx_info *info;
1379
1380         info = IEEE80211_SKB_CB(skb);
1381         iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1382         ieee80211_free_txskb(mvm->hw, skb);
1383 }
1384
1385 struct iwl_mvm_reprobe {
1386         struct device *dev;
1387         struct work_struct work;
1388 };
1389
1390 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1391 {
1392         struct iwl_mvm_reprobe *reprobe;
1393
1394         reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1395         if (device_reprobe(reprobe->dev))
1396                 dev_err(reprobe->dev, "reprobe failed!\n");
1397         put_device(reprobe->dev);
1398         kfree(reprobe);
1399         module_put(THIS_MODULE);
1400 }
1401
1402 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1403 {
1404         iwl_abort_notification_waits(&mvm->notif_wait);
1405         iwl_dbg_tlv_del_timers(mvm->trans);
1406
1407         /*
1408          * This is a bit racy, but worst case we tell mac80211 about
1409          * a stopped/aborted scan when that was already done which
1410          * is not a problem. It is necessary to abort any os scan
1411          * here because mac80211 requires having the scan cleared
1412          * before restarting.
1413          * We'll reset the scan_status to NONE in restart cleanup in
1414          * the next start() call from mac80211. If restart isn't called
1415          * (no fw restart) scan status will stay busy.
1416          */
1417         iwl_mvm_report_scan_aborted(mvm);
1418
1419         /*
1420          * If we're restarting already, don't cycle restarts.
1421          * If INIT fw asserted, it will likely fail again.
1422          * If WoWLAN fw asserted, don't restart either, mac80211
1423          * can't recover this since we're already half suspended.
1424          */
1425         if (!mvm->fw_restart && fw_error) {
1426                 iwl_fw_error_collect(&mvm->fwrt, false);
1427         } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1428                 struct iwl_mvm_reprobe *reprobe;
1429
1430                 IWL_ERR(mvm,
1431                         "Firmware error during reconfiguration - reprobe!\n");
1432
1433                 /*
1434                  * get a module reference to avoid doing this while unloading
1435                  * anyway and to avoid scheduling a work with code that's
1436                  * being removed.
1437                  */
1438                 if (!try_module_get(THIS_MODULE)) {
1439                         IWL_ERR(mvm, "Module is being unloaded - abort\n");
1440                         return;
1441                 }
1442
1443                 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1444                 if (!reprobe) {
1445                         module_put(THIS_MODULE);
1446                         return;
1447                 }
1448                 reprobe->dev = get_device(mvm->trans->dev);
1449                 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1450                 schedule_work(&reprobe->work);
1451         } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1452                             &mvm->status)) {
1453                 IWL_ERR(mvm, "HW restart already requested, but not started\n");
1454         } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR &&
1455                    mvm->hw_registered &&
1456                    !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
1457                 /* This should be first thing before trying to collect any
1458                  * data to avoid endless loops if any HW error happens while
1459                  * collecting debug data.
1460                  */
1461                 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1462
1463                 if (mvm->fw->ucode_capa.error_log_size) {
1464                         u32 src_size = mvm->fw->ucode_capa.error_log_size;
1465                         u32 src_addr = mvm->fw->ucode_capa.error_log_addr;
1466                         u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC);
1467
1468                         if (recover_buf) {
1469                                 mvm->error_recovery_buf = recover_buf;
1470                                 iwl_trans_read_mem_bytes(mvm->trans,
1471                                                          src_addr,
1472                                                          recover_buf,
1473                                                          src_size);
1474                         }
1475                 }
1476
1477                 iwl_fw_error_collect(&mvm->fwrt, false);
1478
1479                 if (fw_error && mvm->fw_restart > 0)
1480                         mvm->fw_restart--;
1481                 ieee80211_restart_hw(mvm->hw);
1482         }
1483 }
1484
1485 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
1486 {
1487         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1488
1489         if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status))
1490                 iwl_mvm_dump_nic_error_log(mvm);
1491
1492         if (sync) {
1493                 iwl_fw_error_collect(&mvm->fwrt, true);
1494                 /*
1495                  * Currently, the only case for sync=true is during
1496                  * shutdown, so just stop in this case. If/when that
1497                  * changes, we need to be a bit smarter here.
1498                  */
1499                 return;
1500         }
1501
1502         /*
1503          * If the firmware crashes while we're already considering it
1504          * to be dead then don't ask for a restart, that cannot do
1505          * anything useful anyway.
1506          */
1507         if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status))
1508                 return;
1509
1510         iwl_mvm_nic_restart(mvm, true);
1511 }
1512
1513 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1514 {
1515         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1516
1517         WARN_ON(1);
1518         iwl_mvm_nic_restart(mvm, true);
1519 }
1520
1521 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode,
1522                                        enum iwl_fw_ini_time_point tp_id,
1523                                        union iwl_dbg_tlv_tp_data *tp_data)
1524 {
1525         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1526
1527         iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data);
1528 }
1529
1530 #define IWL_MVM_COMMON_OPS                                      \
1531         /* these could be differentiated */                     \
1532         .async_cb = iwl_mvm_async_cb,                           \
1533         .queue_full = iwl_mvm_stop_sw_queue,                    \
1534         .queue_not_full = iwl_mvm_wake_sw_queue,                \
1535         .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,              \
1536         .free_skb = iwl_mvm_free_skb,                           \
1537         .nic_error = iwl_mvm_nic_error,                         \
1538         .cmd_queue_full = iwl_mvm_cmd_queue_full,               \
1539         .nic_config = iwl_mvm_nic_config,                       \
1540         /* as we only register one, these MUST be common! */    \
1541         .start = iwl_op_mode_mvm_start,                         \
1542         .stop = iwl_op_mode_mvm_stop,                           \
1543         .time_point = iwl_op_mode_mvm_time_point
1544
1545 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1546         IWL_MVM_COMMON_OPS,
1547         .rx = iwl_mvm_rx,
1548 };
1549
1550 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1551                               struct napi_struct *napi,
1552                               struct iwl_rx_cmd_buffer *rxb,
1553                               unsigned int queue)
1554 {
1555         struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1556         struct iwl_rx_packet *pkt = rxb_addr(rxb);
1557         u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1558
1559         if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
1560                 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
1561         else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1562                                          RX_QUEUES_NOTIFICATION)))
1563                 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue);
1564         else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1565                 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1566 }
1567
1568 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1569         IWL_MVM_COMMON_OPS,
1570         .rx = iwl_mvm_rx_mq,
1571         .rx_rss = iwl_mvm_rx_mq_rss,
1572 };