1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
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
7 #include <linux/module.h>
8 #include <linux/vmalloc.h>
9 #include <net/mac80211.h>
11 #include "fw/notif-wait.h"
12 #include "iwl-trans.h"
13 #include "iwl-op-mode.h"
15 #include "iwl-debug.h"
17 #include "iwl-modparams.h"
19 #include "iwl-phy-db.h"
20 #include "iwl-eeprom-parse.h"
25 #include "fw/api/scan.h"
26 #include "time-event.h"
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");
35 static const struct iwl_op_mode_ops iwl_mvm_ops;
36 static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
38 struct iwl_mvm_mod_params iwlmvm_mod_params = {
39 .power_scheme = IWL_POWER_SCHEME_BPS,
40 /* rest of fields are 0 by default */
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");
51 * module init and exit functions
53 static int __init iwl_mvm_init(void)
57 ret = iwl_mvm_rate_control_register();
59 pr_err("Unable to register rate control algorithm: %d\n", ret);
63 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
65 pr_err("Unable to register MVM op_mode: %d\n", ret);
69 module_init(iwl_mvm_init);
71 static void __exit iwl_mvm_exit(void)
73 iwl_opmode_deregister("iwlmvm");
74 iwl_mvm_rate_control_unregister();
76 module_exit(iwl_mvm_exit);
78 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
80 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
81 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
83 u32 phy_config = iwl_mvm_get_phy_config(mvm);
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;
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;
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;
103 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
104 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
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.
114 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000)
115 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
117 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt))
118 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG;
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,
131 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
132 radio_cfg_step, radio_cfg_dash);
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.
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);
145 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm,
146 struct iwl_rx_cmd_buffer *rxb)
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;
154 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA))
157 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id);
158 if (!vif || vif->type != NL80211_IFTYPE_STATION)
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)
166 if (!vif->bss_conf.assoc)
169 /* this shouldn't happen *again*, ignore it */
170 if (mvm->cca_40mhz_workaround)
174 * We'll decrement this on disconnect - so set to 2 since we'll
175 * still have to disconnect from the current AP first.
177 mvm->cca_40mhz_workaround = 2;
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.
186 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
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;
192 he_cap = ieee80211_get_he_iftype_cap(sband,
193 ieee80211_vif_type_p2p(vif));
196 /* we know that ours is writable */
197 struct ieee80211_sta_he_cap *he = (void *)he_cap;
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;
206 ieee80211_disconnect(vif, true);
209 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif)
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;
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;
220 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode);
223 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac,
224 struct ieee80211_vif *vif)
226 iwl_mvm_apply_fw_smps_request(vif);
229 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm,
230 struct iwl_rx_cmd_buffer *rxb)
232 struct iwl_rx_packet *pkt = rxb_addr(rxb);
233 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data;
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.
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);
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.
255 enum iwl_rx_handler_context {
257 RX_HANDLER_ASYNC_LOCKED,
258 RX_HANDLER_ASYNC_UNLOCKED,
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
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);
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), }
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.
289 * The handler can be one from three contexts, see &iwl_rx_handler_context
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),
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),
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),
308 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID,
309 iwl_mvm_window_status_notif, RX_HANDLER_SYNC,
310 struct iwl_ba_window_status_notif),
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),
320 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC,
321 struct iwl_mvm_eosp_notification),
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,
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),
338 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif,
339 RX_HANDLER_SYNC, struct iwl_card_state_notif),
341 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
342 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif),
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),
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),
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),
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),
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),
400 #undef RX_HANDLER_GRP
402 /* Please keep this array *SORTED* by hex value.
403 * Access is done through binary search
405 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
406 HCMD_NAME(UCODE_ALIVE_NTFY),
407 HCMD_NAME(REPLY_ERROR),
409 HCMD_NAME(INIT_COMPLETE_NOTIF),
410 HCMD_NAME(PHY_CONTEXT_CMD),
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),
419 HCMD_NAME(REMOVE_STA),
420 HCMD_NAME(FW_GET_ITEM_CMD),
422 HCMD_NAME(SCD_QUEUE_CFG),
423 HCMD_NAME(TXPATH_FLUSH),
424 HCMD_NAME(MGMT_MCAST_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),
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),
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),
499 /* Please keep this array *SORTED* by hex value.
500 * Access is done through binary search
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),
508 /* Please keep this array *SORTED* by hex value.
509 * Access is done through binary search
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),
518 /* Please keep this array *SORTED* by hex value.
519 * Access is done through binary search
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),
530 /* Please keep this array *SORTED* by hex value.
531 * Access is done through binary search
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),
548 /* Please keep this array *SORTED* by hex value.
549 * Access is done through binary search
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),
564 /* Please keep this array *SORTED* by hex value.
565 * Access is done through binary search
567 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
568 HCMD_NAME(STORED_BEACON_NTF),
571 /* Please keep this array *SORTED* by hex value.
572 * Access is done through binary search
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),
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),
593 /* this forward declaration can avoid to export the function */
594 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
596 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm)
598 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs;
604 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev);
606 while (backoff->pwr) {
607 if (dflt_pwr_limit >= backoff->pwr)
608 return backoff->backoff;
616 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
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;
623 mutex_lock(&mvm->mutex);
626 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
627 lockdep_is_held(&mvm->mutex));
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);
636 mutex_unlock(&mvm->mutex);
639 static int iwl_mvm_fwrt_dump_start(void *ctx)
641 struct iwl_mvm *mvm = ctx;
643 mutex_lock(&mvm->mutex);
648 static void iwl_mvm_fwrt_dump_end(void *ctx)
650 struct iwl_mvm *mvm = ctx;
652 mutex_unlock(&mvm->mutex);
655 static bool iwl_mvm_fwrt_fw_running(void *ctx)
657 return iwl_mvm_firmware_running(ctx);
660 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd)
662 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx;
665 mutex_lock(&mvm->mutex);
666 ret = iwl_mvm_send_cmd(mvm, host_cmd);
667 mutex_unlock(&mvm->mutex);
672 static bool iwl_mvm_d3_debug_enable(void *ctx)
674 return IWL_MVM_D3_DEBUG;
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,
685 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm)
689 mutex_lock(&mvm->mutex);
691 ret = iwl_run_init_mvm_ucode(mvm);
693 if (ret && ret != -ERFKILL)
694 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER);
695 if (!ret && iwl_mvm_is_lar_supported(mvm)) {
696 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
697 ret = iwl_mvm_init_mcc(mvm);
700 if (!iwlmvm_mod_params.init_dbg || !ret)
701 iwl_mvm_stop_device(mvm);
703 mutex_unlock(&mvm->mutex);
707 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
712 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm)
716 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
718 ret = iwl_mvm_mac_setup_register(mvm);
721 mvm->hw_registered = true;
723 iwl_mvm_dbgfs_register(mvm);
728 static struct iwl_op_mode *
729 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
730 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
732 struct ieee80211_hw *hw;
733 struct iwl_op_mode *op_mode;
735 struct iwl_trans_config trans_cfg = {};
736 static const u8 no_reclaim_cmds[] = {
741 enum iwl_amsdu_size rb_size_default;
744 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station
745 * index all over the driver - check that its value corresponds to the
748 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) !=
749 IWL_MVM_STATION_COUNT_MAX);
751 /********************************
752 * 1. Allocating and configuring HW data
753 ********************************/
754 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
755 sizeof(struct iwl_mvm),
760 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
762 if (cfg->max_tx_agg_size)
763 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
765 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
769 mvm = IWL_OP_MODE_GET_MVM(op_mode);
770 mvm->dev = trans->dev;
776 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm,
779 iwl_mvm_get_acpi_tables(mvm);
781 mvm->init_status = 0;
783 if (iwl_mvm_has_new_rx_api(mvm)) {
784 op_mode->ops = &iwl_mvm_ops_mq;
785 trans->rx_mpdu_cmd_hdr_size =
786 (trans->trans_cfg->device_family >=
787 IWL_DEVICE_FAMILY_AX210) ?
788 sizeof(struct iwl_rx_mpdu_desc) :
791 op_mode->ops = &iwl_mvm_ops;
792 trans->rx_mpdu_cmd_hdr_size =
793 sizeof(struct iwl_rx_mpdu_res_start);
795 if (WARN_ON(trans->num_rx_queues > 1))
799 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
801 if (iwl_mvm_has_new_tx_api(mvm)) {
803 * If we have the new TX/queue allocation API initialize them
804 * all to invalid numbers. We'll rewrite the ones that we need
805 * later, but that doesn't happen for all of them all of the
806 * time (e.g. P2P Device is optional), and if a dynamic queue
807 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then
808 * iwl_mvm_is_static_queue() erroneously returns true, and we
809 * might have things getting stuck.
811 mvm->aux_queue = IWL_MVM_INVALID_QUEUE;
812 mvm->snif_queue = IWL_MVM_INVALID_QUEUE;
813 mvm->probe_queue = IWL_MVM_INVALID_QUEUE;
814 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE;
816 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
817 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE;
818 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
819 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
822 mvm->sf_state = SF_UNINIT;
823 if (iwl_mvm_has_unified_ucode(mvm))
824 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR);
826 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT);
827 mvm->drop_bcn_ap_mode = true;
829 mutex_init(&mvm->mutex);
830 spin_lock_init(&mvm->async_handlers_lock);
831 INIT_LIST_HEAD(&mvm->time_event_list);
832 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
833 INIT_LIST_HEAD(&mvm->async_handlers_list);
834 spin_lock_init(&mvm->time_event_lock);
835 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list);
836 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list);
837 INIT_LIST_HEAD(&mvm->resp_pasn_list);
839 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
840 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
841 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
842 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
843 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
844 INIT_LIST_HEAD(&mvm->add_stream_txqs);
846 init_waitqueue_head(&mvm->rx_sync_waitq);
848 mvm->queue_sync_state = 0;
850 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
852 spin_lock_init(&mvm->tcm.lock);
853 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work);
854 mvm->tcm.ts = jiffies;
855 mvm->tcm.ll_ts = jiffies;
856 mvm->tcm.uapsd_nonagg_ts = jiffies;
858 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
860 mvm->cmd_ver.d0i3_resp =
861 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD,
863 /* we only support version 1 */
864 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1))
867 mvm->cmd_ver.range_resp =
868 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP,
869 TOF_RANGE_RESPONSE_NOTIF, 5);
870 /* we only support up to version 8 */
871 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 8))
875 * Populate the state variables that the transport layer needs
878 trans_cfg.op_mode = op_mode;
879 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
880 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
882 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
883 rb_size_default = IWL_AMSDU_2K;
885 rb_size_default = IWL_AMSDU_4K;
887 switch (iwlwifi_mod_params.amsdu_size) {
889 trans_cfg.rx_buf_size = rb_size_default;
892 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
895 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
898 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
901 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
902 iwlwifi_mod_params.amsdu_size);
903 trans_cfg.rx_buf_size = rb_size_default;
906 trans->wide_cmd_header = true;
907 trans_cfg.bc_table_dword =
908 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210;
910 trans_cfg.command_groups = iwl_mvm_groups;
911 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
913 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
914 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
915 trans_cfg.scd_set_active = true;
917 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
920 /* Set a short watchdog for the command queue */
921 trans_cfg.cmd_q_wdg_timeout =
922 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
924 snprintf(mvm->hw->wiphy->fw_version,
925 sizeof(mvm->hw->wiphy->fw_version),
926 "%s", fw->fw_version);
928 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa,
929 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE);
931 /* Configure transport layer */
932 iwl_trans_configure(mvm->trans, &trans_cfg);
934 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
935 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv;
936 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg;
937 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv,
938 sizeof(trans->dbg.conf_tlv));
939 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv;
941 trans->iml = mvm->fw->iml;
942 trans->iml_len = mvm->fw->iml_len;
944 /* set up notification wait support */
945 iwl_notification_wait_init(&mvm->notif_wait);
948 mvm->phy_db = iwl_phy_db_init(trans);
950 IWL_ERR(mvm, "Cannot init phy_db\n");
954 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
955 mvm->trans->name, mvm->trans->hw_rev);
957 if (iwlwifi_mod_params.nvm_file)
958 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
960 IWL_DEBUG_EEPROM(mvm->trans->dev,
961 "working without external nvm file\n");
963 err = iwl_trans_start_hw(mvm->trans);
967 scan_size = iwl_mvm_scan_size(mvm);
969 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
973 /* invalidate ids to prevent accidental removal of sta_id 0 */
974 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA;
975 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA;
977 /* Set EBS as successful as long as not stated otherwise by the FW. */
978 mvm->last_ebs_successful = true;
980 min_backoff = iwl_mvm_min_backoff(mvm);
981 iwl_mvm_thermal_initialize(mvm, min_backoff);
983 if (!iwl_mvm_has_new_rx_stats_api(mvm))
984 memset(&mvm->rx_stats_v3, 0,
985 sizeof(struct mvm_statistics_rx_v3));
987 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
989 mvm->debugfs_dir = dbgfs_dir;
991 if (iwl_mvm_start_get_nvm(mvm))
992 goto out_thermal_exit;
994 if (iwl_mvm_start_post_nvm(mvm))
995 goto out_thermal_exit;
1000 iwl_mvm_thermal_exit(mvm);
1002 iwl_fw_flush_dumps(&mvm->fwrt);
1003 iwl_fw_runtime_free(&mvm->fwrt);
1005 if (iwlmvm_mod_params.init_dbg)
1007 iwl_phy_db_free(mvm->phy_db);
1008 kfree(mvm->scan_cmd);
1009 iwl_trans_op_mode_leave(trans);
1011 ieee80211_free_hw(mvm->hw);
1015 void iwl_mvm_stop_device(struct iwl_mvm *mvm)
1017 lockdep_assert_held(&mvm->mutex);
1019 iwl_fw_cancel_timestamp(&mvm->fwrt);
1021 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1023 iwl_fw_dbg_stop_sync(&mvm->fwrt);
1024 iwl_trans_stop_device(mvm->trans);
1025 iwl_free_fw_paging(&mvm->fwrt);
1026 iwl_fw_dump_conf_clear(&mvm->fwrt);
1029 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
1031 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1034 iwl_mvm_leds_exit(mvm);
1036 iwl_mvm_thermal_exit(mvm);
1038 ieee80211_unregister_hw(mvm->hw);
1040 kfree(mvm->scan_cmd);
1041 kfree(mvm->mcast_filter_cmd);
1042 mvm->mcast_filter_cmd = NULL;
1044 kfree(mvm->error_recovery_buf);
1045 mvm->error_recovery_buf = NULL;
1047 iwl_trans_op_mode_leave(mvm->trans);
1049 iwl_phy_db_free(mvm->phy_db);
1052 kfree(mvm->nvm_data);
1053 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
1054 kfree(mvm->nvm_sections[i].data);
1056 cancel_delayed_work_sync(&mvm->tcm.work);
1058 iwl_fw_runtime_free(&mvm->fwrt);
1059 mutex_destroy(&mvm->mutex);
1061 ieee80211_free_hw(mvm->hw);
1064 struct iwl_async_handler_entry {
1065 struct list_head list;
1066 struct iwl_rx_cmd_buffer rxb;
1067 enum iwl_rx_handler_context context;
1068 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1071 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
1073 struct iwl_async_handler_entry *entry, *tmp;
1075 spin_lock_bh(&mvm->async_handlers_lock);
1076 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
1077 iwl_free_rxb(&entry->rxb);
1078 list_del(&entry->list);
1081 spin_unlock_bh(&mvm->async_handlers_lock);
1084 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
1086 struct iwl_mvm *mvm =
1087 container_of(wk, struct iwl_mvm, async_handlers_wk);
1088 struct iwl_async_handler_entry *entry, *tmp;
1089 LIST_HEAD(local_list);
1091 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
1094 * Sync with Rx path with a lock. Remove all the entries from this list,
1095 * add them to a local one (lock free), and then handle them.
1097 spin_lock_bh(&mvm->async_handlers_lock);
1098 list_splice_init(&mvm->async_handlers_list, &local_list);
1099 spin_unlock_bh(&mvm->async_handlers_lock);
1101 list_for_each_entry_safe(entry, tmp, &local_list, list) {
1102 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1103 mutex_lock(&mvm->mutex);
1104 entry->fn(mvm, &entry->rxb);
1105 iwl_free_rxb(&entry->rxb);
1106 list_del(&entry->list);
1107 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1108 mutex_unlock(&mvm->mutex);
1113 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
1114 struct iwl_rx_packet *pkt)
1116 struct iwl_fw_dbg_trigger_tlv *trig;
1117 struct iwl_fw_dbg_trigger_cmd *cmds_trig;
1120 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
1121 FW_DBG_TRIGGER_FW_NOTIF);
1125 cmds_trig = (void *)trig->data;
1127 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
1128 /* don't collect on CMD 0 */
1129 if (!cmds_trig->cmds[i].cmd_id)
1132 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
1133 cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
1136 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
1137 "CMD 0x%02x.%02x received",
1138 pkt->hdr.group_id, pkt->hdr.cmd);
1143 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
1144 struct iwl_rx_cmd_buffer *rxb,
1145 struct iwl_rx_packet *pkt)
1147 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);
1149 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt };
1151 iwl_dbg_tlv_time_point(&mvm->fwrt,
1152 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data);
1153 iwl_mvm_rx_check_trigger(mvm, pkt);
1156 * Do the notification wait before RX handlers so
1157 * even if the RX handler consumes the RXB we have
1158 * access to it in the notification wait entry.
1160 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
1162 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
1163 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
1164 struct iwl_async_handler_entry *entry;
1166 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
1169 if (unlikely(pkt_len < rx_h->min_size))
1172 if (rx_h->context == RX_HANDLER_SYNC) {
1177 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
1178 /* we can't do much... */
1182 entry->rxb._page = rxb_steal_page(rxb);
1183 entry->rxb._offset = rxb->_offset;
1184 entry->rxb._rx_page_order = rxb->_rx_page_order;
1185 entry->fn = rx_h->fn;
1186 entry->context = rx_h->context;
1187 spin_lock(&mvm->async_handlers_lock);
1188 list_add_tail(&entry->list, &mvm->async_handlers_list);
1189 spin_unlock(&mvm->async_handlers_lock);
1190 schedule_work(&mvm->async_handlers_wk);
1195 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
1196 struct napi_struct *napi,
1197 struct iwl_rx_cmd_buffer *rxb)
1199 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1200 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1201 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1203 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1204 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
1205 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
1206 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
1208 iwl_mvm_rx_common(mvm, rxb, pkt);
1211 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
1212 struct napi_struct *napi,
1213 struct iwl_rx_cmd_buffer *rxb)
1215 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1216 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1217 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1219 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1220 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
1221 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1222 RX_QUEUES_NOTIFICATION)))
1223 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0);
1224 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
1225 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
1226 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE))
1227 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0);
1228 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF))
1229 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0);
1231 iwl_mvm_rx_common(mvm, rxb, pkt);
1234 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1235 const struct iwl_device_cmd *cmd)
1237 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1240 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1241 * commands that need to block the Tx queues.
1243 iwl_trans_block_txq_ptrs(mvm->trans, false);
1246 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue)
1248 return queue == mvm->aux_queue || queue == mvm->probe_queue ||
1249 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue;
1252 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode,
1253 int hw_queue, bool start)
1255 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1256 struct ieee80211_sta *sta;
1257 struct ieee80211_txq *txq;
1258 struct iwl_mvm_txq *mvmtxq;
1260 unsigned long tid_bitmap;
1261 struct iwl_mvm_sta *mvmsta;
1264 sta_id = iwl_mvm_has_new_tx_api(mvm) ?
1265 mvm->tvqm_info[hw_queue].sta_id :
1266 mvm->queue_info[hw_queue].ra_sta_id;
1268 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations))
1273 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1274 if (IS_ERR_OR_NULL(sta))
1276 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1278 if (iwl_mvm_is_static_queue(mvm, hw_queue)) {
1280 ieee80211_stop_queues(mvm->hw);
1281 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1282 ieee80211_wake_queues(mvm->hw);
1287 if (iwl_mvm_has_new_tx_api(mvm)) {
1288 int tid = mvm->tvqm_info[hw_queue].txq_tid;
1290 tid_bitmap = BIT(tid);
1292 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap;
1295 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1298 if (tid == IWL_MAX_TID_COUNT)
1299 tid = IEEE80211_NUM_TIDS;
1301 txq = sta->txq[tid];
1302 mvmtxq = iwl_mvm_txq_from_mac80211(txq);
1303 mvmtxq->stopped = !start;
1305 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1306 iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
1313 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1315 iwl_mvm_queue_state_change(op_mode, hw_queue, false);
1318 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1320 iwl_mvm_queue_state_change(op_mode, hw_queue, true);
1323 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm)
1325 bool state = iwl_mvm_is_radio_killed(mvm);
1328 wake_up(&mvm->rx_sync_waitq);
1330 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
1333 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1336 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1338 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1340 iwl_mvm_set_rfkill_state(mvm);
1343 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
1345 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1346 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done);
1347 bool unified = iwl_mvm_has_unified_ucode(mvm);
1350 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1352 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1354 iwl_mvm_set_rfkill_state(mvm);
1356 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */
1357 if (rfkill_safe_init_done)
1358 iwl_abort_notification_waits(&mvm->notif_wait);
1361 * Don't ask the transport to stop the firmware. We'll do it
1362 * after cfg80211 takes us down.
1368 * Stop the device if we run OPERATIONAL firmware or if we are in the
1369 * middle of the calibrations.
1371 return state && rfkill_safe_init_done;
1374 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1376 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1377 struct ieee80211_tx_info *info;
1379 info = IEEE80211_SKB_CB(skb);
1380 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1381 ieee80211_free_txskb(mvm->hw, skb);
1384 struct iwl_mvm_reprobe {
1386 struct work_struct work;
1389 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1391 struct iwl_mvm_reprobe *reprobe;
1393 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1394 if (device_reprobe(reprobe->dev))
1395 dev_err(reprobe->dev, "reprobe failed!\n");
1396 put_device(reprobe->dev);
1398 module_put(THIS_MODULE);
1401 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1403 iwl_abort_notification_waits(&mvm->notif_wait);
1404 iwl_dbg_tlv_del_timers(mvm->trans);
1407 * This is a bit racy, but worst case we tell mac80211 about
1408 * a stopped/aborted scan when that was already done which
1409 * is not a problem. It is necessary to abort any os scan
1410 * here because mac80211 requires having the scan cleared
1411 * before restarting.
1412 * We'll reset the scan_status to NONE in restart cleanup in
1413 * the next start() call from mac80211. If restart isn't called
1414 * (no fw restart) scan status will stay busy.
1416 iwl_mvm_report_scan_aborted(mvm);
1419 * If we're restarting already, don't cycle restarts.
1420 * If INIT fw asserted, it will likely fail again.
1421 * If WoWLAN fw asserted, don't restart either, mac80211
1422 * can't recover this since we're already half suspended.
1424 if (!mvm->fw_restart && fw_error) {
1425 iwl_fw_error_collect(&mvm->fwrt, false);
1426 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1427 struct iwl_mvm_reprobe *reprobe;
1430 "Firmware error during reconfiguration - reprobe!\n");
1433 * get a module reference to avoid doing this while unloading
1434 * anyway and to avoid scheduling a work with code that's
1437 if (!try_module_get(THIS_MODULE)) {
1438 IWL_ERR(mvm, "Module is being unloaded - abort\n");
1442 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1444 module_put(THIS_MODULE);
1447 reprobe->dev = get_device(mvm->trans->dev);
1448 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1449 schedule_work(&reprobe->work);
1450 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1452 IWL_ERR(mvm, "HW restart already requested, but not started\n");
1453 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR &&
1454 mvm->hw_registered &&
1455 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
1456 /* This should be first thing before trying to collect any
1457 * data to avoid endless loops if any HW error happens while
1458 * collecting debug data.
1460 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1462 if (mvm->fw->ucode_capa.error_log_size) {
1463 u32 src_size = mvm->fw->ucode_capa.error_log_size;
1464 u32 src_addr = mvm->fw->ucode_capa.error_log_addr;
1465 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC);
1468 mvm->error_recovery_buf = recover_buf;
1469 iwl_trans_read_mem_bytes(mvm->trans,
1476 iwl_fw_error_collect(&mvm->fwrt, false);
1478 if (fw_error && mvm->fw_restart > 0)
1480 ieee80211_restart_hw(mvm->hw);
1484 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
1486 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1488 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status))
1489 iwl_mvm_dump_nic_error_log(mvm);
1492 iwl_fw_error_collect(&mvm->fwrt, true);
1494 * Currently, the only case for sync=true is during
1495 * shutdown, so just stop in this case. If/when that
1496 * changes, we need to be a bit smarter here.
1502 * If the firmware crashes while we're already considering it
1503 * to be dead then don't ask for a restart, that cannot do
1504 * anything useful anyway.
1506 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status))
1509 iwl_mvm_nic_restart(mvm, true);
1512 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1514 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1517 iwl_mvm_nic_restart(mvm, true);
1520 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode,
1521 enum iwl_fw_ini_time_point tp_id,
1522 union iwl_dbg_tlv_tp_data *tp_data)
1524 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1526 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data);
1529 #define IWL_MVM_COMMON_OPS \
1530 /* these could be differentiated */ \
1531 .async_cb = iwl_mvm_async_cb, \
1532 .queue_full = iwl_mvm_stop_sw_queue, \
1533 .queue_not_full = iwl_mvm_wake_sw_queue, \
1534 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \
1535 .free_skb = iwl_mvm_free_skb, \
1536 .nic_error = iwl_mvm_nic_error, \
1537 .cmd_queue_full = iwl_mvm_cmd_queue_full, \
1538 .nic_config = iwl_mvm_nic_config, \
1539 /* as we only register one, these MUST be common! */ \
1540 .start = iwl_op_mode_mvm_start, \
1541 .stop = iwl_op_mode_mvm_stop, \
1542 .time_point = iwl_op_mode_mvm_time_point
1544 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1549 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1550 struct napi_struct *napi,
1551 struct iwl_rx_cmd_buffer *rxb,
1554 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1555 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1556 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1558 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
1559 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
1560 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1561 RX_QUEUES_NOTIFICATION)))
1562 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue);
1563 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1564 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1567 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1569 .rx = iwl_mvm_rx_mq,
1570 .rx_rss = iwl_mvm_rx_mq_rss,