1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3  * Copyright (C) 2012-2014, 2018-2020 Intel Corporation
4  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5  * Copyright (C) 2016-2017 Intel Deutschland GmbH
6  */
7 #include <linux/module.h>
8 #include <linux/rtnetlink.h>
9 #include <linux/vmalloc.h>
10 #include <net/mac80211.h>
11 
12 #include "fw/notif-wait.h"
13 #include "iwl-trans.h"
14 #include "iwl-op-mode.h"
15 #include "fw/img.h"
16 #include "iwl-debug.h"
17 #include "iwl-drv.h"
18 #include "iwl-modparams.h"
19 #include "mvm.h"
20 #include "iwl-phy-db.h"
21 #include "iwl-eeprom-parse.h"
22 #include "iwl-csr.h"
23 #include "iwl-io.h"
24 #include "iwl-prph.h"
25 #include "rs.h"
26 #include "fw/api/scan.h"
27 #include "fw/api/rfi.h"
28 #include "time-event.h"
29 #include "fw-api.h"
30 #include "fw/acpi.h"
31 #include "fw/uefi.h"
32 
33 #define DRV_DESCRIPTION	"The new Intel(R) wireless AGN driver for Linux"
34 MODULE_DESCRIPTION(DRV_DESCRIPTION);
35 MODULE_LICENSE("GPL");
36 MODULE_IMPORT_NS(IWLWIFI);
37 
38 static const struct iwl_op_mode_ops iwl_mvm_ops;
39 static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
40 
41 struct iwl_mvm_mod_params iwlmvm_mod_params = {
42 	.power_scheme = IWL_POWER_SCHEME_BPS,
43 	/* rest of fields are 0 by default */
44 };
45 
46 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444);
47 MODULE_PARM_DESC(init_dbg,
48 		 "set to true to debug an ASSERT in INIT fw (default: false");
49 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444);
50 MODULE_PARM_DESC(power_scheme,
51 		 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
52 
53 /*
54  * module init and exit functions
55  */
56 static int __init iwl_mvm_init(void)
57 {
58 	int ret;
59 
60 	ret = iwl_mvm_rate_control_register();
61 	if (ret) {
62 		pr_err("Unable to register rate control algorithm: %d\n", ret);
63 		return ret;
64 	}
65 
66 	ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
67 	if (ret)
68 		pr_err("Unable to register MVM op_mode: %d\n", ret);
69 
70 	return ret;
71 }
72 module_init(iwl_mvm_init);
73 
74 static void __exit iwl_mvm_exit(void)
75 {
76 	iwl_opmode_deregister("iwlmvm");
77 	iwl_mvm_rate_control_unregister();
78 }
79 module_exit(iwl_mvm_exit);
80 
81 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
82 {
83 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
84 	u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
85 	u32 reg_val;
86 	u32 phy_config = iwl_mvm_get_phy_config(mvm);
87 
88 	radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
89 			 FW_PHY_CFG_RADIO_TYPE_POS;
90 	radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
91 			 FW_PHY_CFG_RADIO_STEP_POS;
92 	radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
93 			 FW_PHY_CFG_RADIO_DASH_POS;
94 
95 	/* SKU control */
96 	reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev);
97 
98 	/* radio configuration */
99 	reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
100 	reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
101 	reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
102 
103 	WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
104 		 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
105 
106 	/*
107 	 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC
108 	 * sampling, and shouldn't be set to any non-zero value.
109 	 * The same is supposed to be true of the other HW, but unsetting
110 	 * them (such as the 7260) causes automatic tests to fail on seemingly
111 	 * unrelated errors. Need to further investigate this, but for now
112 	 * we'll separate cases.
113 	 */
114 	if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000)
115 		reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
116 
117 	if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt))
118 		reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG;
119 
120 	iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
121 				CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH |
122 				CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
123 				CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
124 				CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
125 				CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
126 				CSR_HW_IF_CONFIG_REG_BIT_MAC_SI   |
127 				CSR_HW_IF_CONFIG_REG_D3_DEBUG,
128 				reg_val);
129 
130 	IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
131 		       radio_cfg_step, radio_cfg_dash);
132 
133 	/*
134 	 * W/A : NIC is stuck in a reset state after Early PCIe power off
135 	 * (PCIe power is lost before PERST# is asserted), causing ME FW
136 	 * to lose ownership and not being able to obtain it back.
137 	 */
138 	if (!mvm->trans->cfg->apmg_not_supported)
139 		iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
140 				       APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
141 				       ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
142 }
143 
144 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm,
145 				     struct iwl_rx_cmd_buffer *rxb)
146 {
147 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
148 	struct iwl_datapath_monitor_notif *notif = (void *)pkt->data;
149 	struct ieee80211_supported_band *sband;
150 	const struct ieee80211_sta_he_cap *he_cap;
151 	struct ieee80211_vif *vif;
152 
153 	if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA))
154 		return;
155 
156 	vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id);
157 	if (!vif || vif->type != NL80211_IFTYPE_STATION)
158 		return;
159 
160 	if (!vif->bss_conf.chandef.chan ||
161 	    vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ ||
162 	    vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40)
163 		return;
164 
165 	if (!vif->bss_conf.assoc)
166 		return;
167 
168 	/* this shouldn't happen *again*, ignore it */
169 	if (mvm->cca_40mhz_workaround)
170 		return;
171 
172 	/*
173 	 * We'll decrement this on disconnect - so set to 2 since we'll
174 	 * still have to disconnect from the current AP first.
175 	 */
176 	mvm->cca_40mhz_workaround = 2;
177 
178 	/*
179 	 * This capability manipulation isn't really ideal, but it's the
180 	 * easiest choice - otherwise we'd have to do some major changes
181 	 * in mac80211 to support this, which isn't worth it. This does
182 	 * mean that userspace may have outdated information, but that's
183 	 * actually not an issue at all.
184 	 */
185 	sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
186 
187 	WARN_ON(!sband->ht_cap.ht_supported);
188 	WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40));
189 	sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
190 
191 	he_cap = ieee80211_get_he_iftype_cap(sband,
192 					     ieee80211_vif_type_p2p(vif));
193 
194 	if (he_cap) {
195 		/* we know that ours is writable */
196 		struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
197 
198 		WARN_ON(!he->has_he);
199 		WARN_ON(!(he->he_cap_elem.phy_cap_info[0] &
200 				IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G));
201 		he->he_cap_elem.phy_cap_info[0] &=
202 			~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
203 	}
204 
205 	ieee80211_disconnect(vif, true);
206 }
207 
208 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif)
209 {
210 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
211 	struct iwl_mvm *mvm = mvmvif->mvm;
212 	enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC;
213 
214 	if (mvm->fw_static_smps_request &&
215 	    vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 &&
216 	    vif->bss_conf.he_support)
217 		mode = IEEE80211_SMPS_STATIC;
218 
219 	iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode);
220 }
221 
222 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac,
223 					struct ieee80211_vif *vif)
224 {
225 	iwl_mvm_apply_fw_smps_request(vif);
226 }
227 
228 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm,
229 					      struct iwl_rx_cmd_buffer *rxb)
230 {
231 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
232 	struct iwl_thermal_dual_chain_request *req = (void *)pkt->data;
233 
234 	/*
235 	 * We could pass it to the iterator data, but also need to remember
236 	 * it for new interfaces that are added while in this state.
237 	 */
238 	mvm->fw_static_smps_request =
239 		req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE);
240 	ieee80211_iterate_interfaces(mvm->hw,
241 				     IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER,
242 				     iwl_mvm_intf_dual_chain_req, NULL);
243 }
244 
245 /**
246  * enum iwl_rx_handler_context context for Rx handler
247  * @RX_HANDLER_SYNC : this means that it will be called in the Rx path
248  *	which can't acquire mvm->mutex.
249  * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex
250  *	(and only in this case!), it should be set as ASYNC. In that case,
251  *	it will be called from a worker with mvm->mutex held.
252  * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the
253  *	mutex itself, it will be called from a worker without mvm->mutex held.
254  */
255 enum iwl_rx_handler_context {
256 	RX_HANDLER_SYNC,
257 	RX_HANDLER_ASYNC_LOCKED,
258 	RX_HANDLER_ASYNC_UNLOCKED,
259 };
260 
261 /**
262  * struct iwl_rx_handlers handler for FW notification
263  * @cmd_id: command id
264  * @min_size: minimum size to expect for the notification
265  * @context: see &iwl_rx_handler_context
266  * @fn: the function is called when notification is received
267  */
268 struct iwl_rx_handlers {
269 	u16 cmd_id, min_size;
270 	enum iwl_rx_handler_context context;
271 	void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
272 };
273 
274 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context)		\
275 	{ .cmd_id = _cmd_id, .fn = _fn, .context = _context, }
276 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context)	\
277 	{ .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, }
278 #define RX_HANDLER(_cmd_id, _fn, _context, _struct)		\
279 	{ .cmd_id = _cmd_id, .fn = _fn,				\
280 	  .context = _context, .min_size = sizeof(_struct), }
281 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct)	\
282 	{ .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn,		\
283 	  .context = _context, .min_size = sizeof(_struct), }
284 
285 /*
286  * Handlers for fw notifications
287  * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
288  * This list should be in order of frequency for performance purposes.
289  *
290  * The handler can be one from three contexts, see &iwl_rx_handler_context
291  */
292 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
293 	RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC,
294 		   struct iwl_mvm_tx_resp),
295 	RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC,
296 		   struct iwl_mvm_ba_notif),
297 
298 	RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF,
299 		       iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC,
300 		       struct iwl_tlc_update_notif),
301 
302 	RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif,
303 		   RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif),
304 	RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif,
305 			   RX_HANDLER_ASYNC_LOCKED),
306 	RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics,
307 			   RX_HANDLER_ASYNC_LOCKED),
308 
309 	RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID,
310 		   iwl_mvm_window_status_notif, RX_HANDLER_SYNC,
311 		   struct iwl_ba_window_status_notif),
312 
313 	RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif,
314 		   RX_HANDLER_SYNC, struct iwl_time_event_notif),
315 	RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF,
316 		       iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC,
317 		       struct iwl_mvm_session_prot_notif),
318 	RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc,
319 		   RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif),
320 
321 	RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC,
322 		   struct iwl_mvm_eosp_notification),
323 
324 	RX_HANDLER(SCAN_ITERATION_COMPLETE,
325 		   iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC,
326 		   struct iwl_lmac_scan_complete_notif),
327 	RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
328 		   iwl_mvm_rx_lmac_scan_complete_notif,
329 		   RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete),
330 	RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION,
331 			   iwl_mvm_rx_scan_match_found,
332 			   RX_HANDLER_SYNC),
333 	RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
334 		   RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete),
335 	RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
336 		   iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC,
337 		   struct iwl_umac_scan_iter_complete_notif),
338 
339 	RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
340 		   RX_HANDLER_SYNC, struct iwl_missed_beacons_notif),
341 
342 	RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC,
343 		   struct iwl_error_resp),
344 	RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
345 		   iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC,
346 		   struct iwl_uapsd_misbehaving_ap_notif),
347 	RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif,
348 			   RX_HANDLER_ASYNC_LOCKED),
349 	RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
350 			       iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED),
351 	RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
352 		       iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC,
353 		       struct ct_kill_notif),
354 
355 	RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
356 		   RX_HANDLER_ASYNC_LOCKED,
357 		   struct iwl_tdls_channel_switch_notif),
358 	RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif,
359 		   RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1),
360 	RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS,
361 		       iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED,
362 		       struct iwl_ftm_responder_stats),
363 
364 	RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF,
365 			       iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED),
366 	RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF,
367 			       iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED),
368 
369 	RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF,
370 		       iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC,
371 		       struct iwl_mfu_assert_dump_notif),
372 	RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
373 		       iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC,
374 		       struct iwl_stored_beacon_notif_v2),
375 	RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF,
376 		       iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC,
377 		       struct iwl_mu_group_mgmt_notif),
378 	RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF,
379 		       iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC,
380 		       struct iwl_mvm_pm_state_notification),
381 	RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF,
382 		       iwl_mvm_probe_resp_data_notif,
383 		       RX_HANDLER_ASYNC_LOCKED,
384 		       struct iwl_probe_resp_data_notif),
385 	RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF,
386 		       iwl_mvm_channel_switch_start_notif,
387 		       RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif),
388 	RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF,
389 		       iwl_mvm_channel_switch_error_notif,
390 		       RX_HANDLER_ASYNC_UNLOCKED,
391 		       struct iwl_channel_switch_error_notif),
392 	RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF,
393 		       iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED,
394 		       struct iwl_datapath_monitor_notif),
395 
396 	RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST,
397 		       iwl_mvm_rx_thermal_dual_chain_req,
398 		       RX_HANDLER_ASYNC_LOCKED,
399 		       struct iwl_thermal_dual_chain_request),
400 
401 	RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF,
402 		       iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED,
403 		       struct iwl_rfi_deactivate_notif),
404 };
405 #undef RX_HANDLER
406 #undef RX_HANDLER_GRP
407 
408 /* Please keep this array *SORTED* by hex value.
409  * Access is done through binary search
410  */
411 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
412 	HCMD_NAME(UCODE_ALIVE_NTFY),
413 	HCMD_NAME(REPLY_ERROR),
414 	HCMD_NAME(ECHO_CMD),
415 	HCMD_NAME(INIT_COMPLETE_NOTIF),
416 	HCMD_NAME(PHY_CONTEXT_CMD),
417 	HCMD_NAME(DBG_CFG),
418 	HCMD_NAME(SCAN_CFG_CMD),
419 	HCMD_NAME(SCAN_REQ_UMAC),
420 	HCMD_NAME(SCAN_ABORT_UMAC),
421 	HCMD_NAME(SCAN_COMPLETE_UMAC),
422 	HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
423 	HCMD_NAME(ADD_STA_KEY),
424 	HCMD_NAME(ADD_STA),
425 	HCMD_NAME(REMOVE_STA),
426 	HCMD_NAME(FW_GET_ITEM_CMD),
427 	HCMD_NAME(TX_CMD),
428 	HCMD_NAME(SCD_QUEUE_CFG),
429 	HCMD_NAME(TXPATH_FLUSH),
430 	HCMD_NAME(MGMT_MCAST_KEY),
431 	HCMD_NAME(WEP_KEY),
432 	HCMD_NAME(SHARED_MEM_CFG),
433 	HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
434 	HCMD_NAME(MAC_CONTEXT_CMD),
435 	HCMD_NAME(TIME_EVENT_CMD),
436 	HCMD_NAME(TIME_EVENT_NOTIFICATION),
437 	HCMD_NAME(BINDING_CONTEXT_CMD),
438 	HCMD_NAME(TIME_QUOTA_CMD),
439 	HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
440 	HCMD_NAME(LEDS_CMD),
441 	HCMD_NAME(LQ_CMD),
442 	HCMD_NAME(FW_PAGING_BLOCK_CMD),
443 	HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
444 	HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
445 	HCMD_NAME(HOT_SPOT_CMD),
446 	HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
447 	HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
448 	HCMD_NAME(BT_COEX_CI),
449 	HCMD_NAME(PHY_CONFIGURATION_CMD),
450 	HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
451 	HCMD_NAME(PHY_DB_CMD),
452 	HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
453 	HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
454 	HCMD_NAME(POWER_TABLE_CMD),
455 	HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
456 	HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
457 	HCMD_NAME(NVM_ACCESS_CMD),
458 	HCMD_NAME(BEACON_NOTIFICATION),
459 	HCMD_NAME(BEACON_TEMPLATE_CMD),
460 	HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
461 	HCMD_NAME(BT_CONFIG),
462 	HCMD_NAME(STATISTICS_CMD),
463 	HCMD_NAME(STATISTICS_NOTIFICATION),
464 	HCMD_NAME(EOSP_NOTIFICATION),
465 	HCMD_NAME(REDUCE_TX_POWER_CMD),
466 	HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
467 	HCMD_NAME(TDLS_CONFIG_CMD),
468 	HCMD_NAME(MAC_PM_POWER_TABLE),
469 	HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
470 	HCMD_NAME(MFUART_LOAD_NOTIFICATION),
471 	HCMD_NAME(RSS_CONFIG_CMD),
472 	HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
473 	HCMD_NAME(REPLY_RX_PHY_CMD),
474 	HCMD_NAME(REPLY_RX_MPDU_CMD),
475 	HCMD_NAME(BAR_FRAME_RELEASE),
476 	HCMD_NAME(FRAME_RELEASE),
477 	HCMD_NAME(BA_NOTIF),
478 	HCMD_NAME(MCC_UPDATE_CMD),
479 	HCMD_NAME(MCC_CHUB_UPDATE_CMD),
480 	HCMD_NAME(MARKER_CMD),
481 	HCMD_NAME(BT_PROFILE_NOTIFICATION),
482 	HCMD_NAME(MCAST_FILTER_CMD),
483 	HCMD_NAME(REPLY_SF_CFG_CMD),
484 	HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
485 	HCMD_NAME(D3_CONFIG_CMD),
486 	HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
487 	HCMD_NAME(OFFLOADS_QUERY_CMD),
488 	HCMD_NAME(MATCH_FOUND_NOTIFICATION),
489 	HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
490 	HCMD_NAME(WOWLAN_PATTERNS),
491 	HCMD_NAME(WOWLAN_CONFIGURATION),
492 	HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
493 	HCMD_NAME(WOWLAN_TKIP_PARAM),
494 	HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
495 	HCMD_NAME(WOWLAN_GET_STATUSES),
496 	HCMD_NAME(SCAN_ITERATION_COMPLETE),
497 	HCMD_NAME(D0I3_END_CMD),
498 	HCMD_NAME(LTR_CONFIG),
499 	HCMD_NAME(LDBG_CONFIG_CMD),
500 };
501 
502 /* Please keep this array *SORTED* by hex value.
503  * Access is done through binary search
504  */
505 static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
506 	HCMD_NAME(SHARED_MEM_CFG_CMD),
507 	HCMD_NAME(INIT_EXTENDED_CFG_CMD),
508 	HCMD_NAME(FW_ERROR_RECOVERY_CMD),
509 	HCMD_NAME(RFI_CONFIG_CMD),
510 	HCMD_NAME(RFI_GET_FREQ_TABLE_CMD),
511 	HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD),
512 	HCMD_NAME(RFI_DEACTIVATE_NOTIF),
513 };
514 
515 /* Please keep this array *SORTED* by hex value.
516  * Access is done through binary search
517  */
518 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
519 	HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD),
520 	HCMD_NAME(SESSION_PROTECTION_CMD),
521 	HCMD_NAME(SESSION_PROTECTION_NOTIF),
522 	HCMD_NAME(CHANNEL_SWITCH_START_NOTIF),
523 };
524 
525 /* Please keep this array *SORTED* by hex value.
526  * Access is done through binary search
527  */
528 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
529 	HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
530 	HCMD_NAME(CTDP_CONFIG_CMD),
531 	HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
532 	HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD),
533 	HCMD_NAME(CT_KILL_NOTIFICATION),
534 	HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
535 };
536 
537 /* Please keep this array *SORTED* by hex value.
538  * Access is done through binary search
539  */
540 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
541 	HCMD_NAME(DQA_ENABLE_CMD),
542 	HCMD_NAME(UPDATE_MU_GROUPS_CMD),
543 	HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
544 	HCMD_NAME(STA_HE_CTXT_CMD),
545 	HCMD_NAME(RLC_CONFIG_CMD),
546 	HCMD_NAME(RFH_QUEUE_CONFIG_CMD),
547 	HCMD_NAME(TLC_MNG_CONFIG_CMD),
548 	HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD),
549 	HCMD_NAME(SCD_QUEUE_CONFIG_CMD),
550 	HCMD_NAME(MONITOR_NOTIF),
551 	HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST),
552 	HCMD_NAME(STA_PM_NOTIF),
553 	HCMD_NAME(MU_GROUP_MGMT_NOTIF),
554 	HCMD_NAME(RX_QUEUES_NOTIFICATION),
555 };
556 
557 /* Please keep this array *SORTED* by hex value.
558  * Access is done through binary search
559  */
560 static const struct iwl_hcmd_names iwl_mvm_location_names[] = {
561 	HCMD_NAME(TOF_RANGE_REQ_CMD),
562 	HCMD_NAME(TOF_CONFIG_CMD),
563 	HCMD_NAME(TOF_RANGE_ABORT_CMD),
564 	HCMD_NAME(TOF_RANGE_REQ_EXT_CMD),
565 	HCMD_NAME(TOF_RESPONDER_CONFIG_CMD),
566 	HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD),
567 	HCMD_NAME(TOF_LC_NOTIF),
568 	HCMD_NAME(TOF_RESPONDER_STATS),
569 	HCMD_NAME(TOF_MCSI_DEBUG_NOTIF),
570 	HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF),
571 };
572 
573 /* Please keep this array *SORTED* by hex value.
574  * Access is done through binary search
575  */
576 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
577 	HCMD_NAME(STORED_BEACON_NTF),
578 };
579 
580 /* Please keep this array *SORTED* by hex value.
581  * Access is done through binary search
582  */
583 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = {
584 	HCMD_NAME(NVM_ACCESS_COMPLETE),
585 	HCMD_NAME(NVM_GET_INFO),
586 	HCMD_NAME(TAS_CONFIG),
587 };
588 
589 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
590 	[LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
591 	[LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
592 	[SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
593 	[MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
594 	[PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
595 	[DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
596 	[LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names),
597 	[PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
598 	[REGULATORY_AND_NVM_GROUP] =
599 		HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),
600 };
601 
602 /* this forward declaration can avoid to export the function */
603 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
604 
605 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm)
606 {
607 	const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs;
608 	u64 dflt_pwr_limit;
609 
610 	if (!backoff)
611 		return 0;
612 
613 	dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev);
614 
615 	while (backoff->pwr) {
616 		if (dflt_pwr_limit >= backoff->pwr)
617 			return backoff->backoff;
618 
619 		backoff++;
620 	}
621 
622 	return 0;
623 }
624 
625 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
626 {
627 	struct iwl_mvm *mvm =
628 		container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
629 	struct ieee80211_vif *tx_blocked_vif;
630 	struct iwl_mvm_vif *mvmvif;
631 
632 	mutex_lock(&mvm->mutex);
633 
634 	tx_blocked_vif =
635 		rcu_dereference_protected(mvm->csa_tx_blocked_vif,
636 					  lockdep_is_held(&mvm->mutex));
637 
638 	if (!tx_blocked_vif)
639 		goto unlock;
640 
641 	mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
642 	iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
643 	RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
644 unlock:
645 	mutex_unlock(&mvm->mutex);
646 }
647 
648 static void iwl_mvm_fwrt_dump_start(void *ctx)
649 {
650 	struct iwl_mvm *mvm = ctx;
651 
652 	mutex_lock(&mvm->mutex);
653 }
654 
655 static void iwl_mvm_fwrt_dump_end(void *ctx)
656 {
657 	struct iwl_mvm *mvm = ctx;
658 
659 	mutex_unlock(&mvm->mutex);
660 }
661 
662 static bool iwl_mvm_fwrt_fw_running(void *ctx)
663 {
664 	return iwl_mvm_firmware_running(ctx);
665 }
666 
667 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd)
668 {
669 	struct iwl_mvm *mvm = (struct iwl_mvm *)ctx;
670 	int ret;
671 
672 	mutex_lock(&mvm->mutex);
673 	ret = iwl_mvm_send_cmd(mvm, host_cmd);
674 	mutex_unlock(&mvm->mutex);
675 
676 	return ret;
677 }
678 
679 static bool iwl_mvm_d3_debug_enable(void *ctx)
680 {
681 	return IWL_MVM_D3_DEBUG;
682 }
683 
684 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
685 	.dump_start = iwl_mvm_fwrt_dump_start,
686 	.dump_end = iwl_mvm_fwrt_dump_end,
687 	.fw_running = iwl_mvm_fwrt_fw_running,
688 	.send_hcmd = iwl_mvm_fwrt_send_hcmd,
689 	.d3_debug_enable = iwl_mvm_d3_debug_enable,
690 };
691 
692 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm)
693 {
694 	struct iwl_trans *trans = mvm->trans;
695 	int ret;
696 
697 	if (trans->csme_own) {
698 		if (WARN(!mvm->mei_registered,
699 			 "csme is owner, but we aren't registered to iwlmei\n"))
700 			goto get_nvm_from_fw;
701 
702 		mvm->mei_nvm_data = iwl_mei_get_nvm();
703 		if (mvm->mei_nvm_data) {
704 			/*
705 			 * mvm->mei_nvm_data is set and because of that,
706 			 * we'll load the NVM from the FW when we'll get
707 			 * ownership.
708 			 */
709 			mvm->nvm_data =
710 				iwl_parse_mei_nvm_data(trans, trans->cfg,
711 						       mvm->mei_nvm_data, mvm->fw);
712 			return 0;
713 		}
714 
715 		IWL_ERR(mvm,
716 			"Got a NULL NVM from CSME, trying to get it from the device\n");
717 	}
718 
719 get_nvm_from_fw:
720 	rtnl_lock();
721 	wiphy_lock(mvm->hw->wiphy);
722 	mutex_lock(&mvm->mutex);
723 
724 	ret = iwl_trans_start_hw(mvm->trans);
725 	if (ret) {
726 		mutex_unlock(&mvm->mutex);
727 		wiphy_unlock(mvm->hw->wiphy);
728 		rtnl_unlock();
729 		return ret;
730 	}
731 
732 	ret = iwl_run_init_mvm_ucode(mvm);
733 	if (ret && ret != -ERFKILL)
734 		iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER);
735 	if (!ret && iwl_mvm_is_lar_supported(mvm)) {
736 		mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
737 		ret = iwl_mvm_init_mcc(mvm);
738 	}
739 
740 	if (!iwlmvm_mod_params.init_dbg || !ret)
741 		iwl_mvm_stop_device(mvm);
742 
743 	mutex_unlock(&mvm->mutex);
744 	wiphy_unlock(mvm->hw->wiphy);
745 	rtnl_unlock();
746 
747 	if (ret)
748 		IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
749 
750 	return ret;
751 }
752 
753 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm)
754 {
755 	struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
756 	int ret;
757 
758 	iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
759 
760 	ret = iwl_mvm_mac_setup_register(mvm);
761 	if (ret)
762 		return ret;
763 
764 	mvm->hw_registered = true;
765 
766 	iwl_mvm_dbgfs_register(mvm);
767 
768 	wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
769 					 mvm->mei_rfkill_blocked,
770 					 RFKILL_HARD_BLOCK_NOT_OWNER);
771 
772 	iwl_mvm_mei_set_sw_rfkill_state(mvm);
773 
774 	return 0;
775 }
776 
777 struct iwl_mvm_frob_txf_data {
778 	u8 *buf;
779 	size_t buflen;
780 };
781 
782 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw,
783 				      struct ieee80211_vif *vif,
784 				      struct ieee80211_sta *sta,
785 				      struct ieee80211_key_conf *key,
786 				      void *data)
787 {
788 	struct iwl_mvm_frob_txf_data *txf = data;
789 	u8 keylen, match, matchend;
790 	u8 *keydata;
791 	size_t i;
792 
793 	switch (key->cipher) {
794 	case WLAN_CIPHER_SUITE_CCMP:
795 		keydata = key->key;
796 		keylen = key->keylen;
797 		break;
798 	case WLAN_CIPHER_SUITE_WEP40:
799 	case WLAN_CIPHER_SUITE_WEP104:
800 	case WLAN_CIPHER_SUITE_TKIP:
801 		/*
802 		 * WEP has short keys which might show up in the payload,
803 		 * and then you can deduce the key, so in this case just
804 		 * remove all FIFO data.
805 		 * For TKIP, we don't know the phase 2 keys here, so same.
806 		 */
807 		memset(txf->buf, 0xBB, txf->buflen);
808 		return;
809 	default:
810 		return;
811 	}
812 
813 	/* scan for key material and clear it out */
814 	match = 0;
815 	for (i = 0; i < txf->buflen; i++) {
816 		if (txf->buf[i] != keydata[match]) {
817 			match = 0;
818 			continue;
819 		}
820 		match++;
821 		if (match == keylen) {
822 			memset(txf->buf + i - keylen, 0xAA, keylen);
823 			match = 0;
824 		}
825 	}
826 
827 	/* we're dealing with a FIFO, so check wrapped around data */
828 	matchend = match;
829 	for (i = 0; match && i < keylen - match; i++) {
830 		if (txf->buf[i] != keydata[match])
831 			break;
832 		match++;
833 		if (match == keylen) {
834 			memset(txf->buf, 0xAA, i + 1);
835 			memset(txf->buf + txf->buflen - matchend, 0xAA,
836 			       matchend);
837 			break;
838 		}
839 	}
840 }
841 
842 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen)
843 {
844 	struct iwl_mvm_frob_txf_data txf = {
845 		.buf = buf,
846 		.buflen = buflen,
847 	};
848 	struct iwl_mvm *mvm = ctx;
849 
850 	/* embedded key material exists only on old API */
851 	if (iwl_mvm_has_new_tx_api(mvm))
852 		return;
853 
854 	rcu_read_lock();
855 	ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf);
856 	rcu_read_unlock();
857 }
858 
859 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len)
860 {
861 	/* we only use wide headers for commands */
862 	struct iwl_cmd_header_wide *hdr = hcmd;
863 	unsigned int frob_start = sizeof(*hdr), frob_end = 0;
864 
865 	if (len < sizeof(hdr))
866 		return;
867 
868 	/* all the commands we care about are in LONG_GROUP */
869 	if (hdr->group_id != LONG_GROUP)
870 		return;
871 
872 	switch (hdr->cmd) {
873 	case WEP_KEY:
874 	case WOWLAN_TKIP_PARAM:
875 	case WOWLAN_KEK_KCK_MATERIAL:
876 	case ADD_STA_KEY:
877 		/*
878 		 * blank out everything here, easier than dealing
879 		 * with the various versions of the command
880 		 */
881 		frob_end = INT_MAX;
882 		break;
883 	case MGMT_MCAST_KEY:
884 		frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
885 		BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) !=
886 			     offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
887 
888 		frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
889 		BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) <
890 			     offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
891 		break;
892 	}
893 
894 	if (frob_start >= frob_end)
895 		return;
896 
897 	if (frob_end > len)
898 		frob_end = len;
899 
900 	memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start);
901 }
902 
903 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen)
904 {
905 	const struct iwl_dump_exclude *excl;
906 	struct iwl_mvm *mvm = ctx;
907 	int i;
908 
909 	switch (mvm->fwrt.cur_fw_img) {
910 	case IWL_UCODE_INIT:
911 	default:
912 		/* not relevant */
913 		return;
914 	case IWL_UCODE_REGULAR:
915 	case IWL_UCODE_REGULAR_USNIFFER:
916 		excl = mvm->fw->dump_excl;
917 		break;
918 	case IWL_UCODE_WOWLAN:
919 		excl = mvm->fw->dump_excl_wowlan;
920 		break;
921 	}
922 
923 	BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) !=
924 		     sizeof(mvm->fw->dump_excl_wowlan));
925 
926 	for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) {
927 		u32 start, end;
928 
929 		if (!excl[i].addr || !excl[i].size)
930 			continue;
931 
932 		start = excl[i].addr;
933 		end = start + excl[i].size;
934 
935 		if (end <= mem_addr || start >= mem_addr + buflen)
936 			continue;
937 
938 		if (start < mem_addr)
939 			start = mem_addr;
940 
941 		if (end > mem_addr + buflen)
942 			end = mem_addr + buflen;
943 
944 		memset((u8 *)mem + start - mem_addr, 0xAA, end - start);
945 	}
946 }
947 
948 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = {
949 	.frob_txf = iwl_mvm_frob_txf,
950 	.frob_hcmd = iwl_mvm_frob_hcmd,
951 	.frob_mem = iwl_mvm_frob_mem,
952 };
953 
954 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info)
955 {
956 	struct iwl_mvm *mvm = priv;
957 	struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info;
958 
959 	/*
960 	 * This is protected by the guarantee that this function will not be
961 	 * called twice on two different threads
962 	 */
963 	prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true);
964 
965 	curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL);
966 	if (!curr_conn_info)
967 		return;
968 
969 	curr_conn_info->conn_info = *conn_info;
970 
971 	rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info);
972 
973 	if (prev_conn_info)
974 		kfree_rcu(prev_conn_info, rcu_head);
975 }
976 
977 static void iwl_mvm_mei_rfkill(void *priv, bool blocked)
978 {
979 	struct iwl_mvm *mvm = priv;
980 
981 	mvm->mei_rfkill_blocked = blocked;
982 	if (!mvm->hw_registered)
983 		return;
984 
985 	wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
986 					 mvm->mei_rfkill_blocked,
987 					 RFKILL_HARD_BLOCK_NOT_OWNER);
988 }
989 
990 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden)
991 {
992 	struct iwl_mvm *mvm = priv;
993 
994 	if (!mvm->hw_registered || !mvm->csme_vif)
995 		return;
996 
997 	iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden);
998 }
999 
1000 static void iwl_mvm_sap_connected_wk(struct work_struct *wk)
1001 {
1002 	struct iwl_mvm *mvm =
1003 		container_of(wk, struct iwl_mvm, sap_connected_wk);
1004 	int ret;
1005 
1006 	ret = iwl_mvm_start_get_nvm(mvm);
1007 	if (ret)
1008 		goto out_free;
1009 
1010 	ret = iwl_mvm_start_post_nvm(mvm);
1011 	if (ret)
1012 		goto out_free;
1013 
1014 	return;
1015 
1016 out_free:
1017 	IWL_ERR(mvm, "Couldn't get started...\n");
1018 	iwl_mei_start_unregister();
1019 	iwl_mei_unregister_complete();
1020 	iwl_fw_flush_dumps(&mvm->fwrt);
1021 	iwl_mvm_thermal_exit(mvm);
1022 	iwl_fw_runtime_free(&mvm->fwrt);
1023 	iwl_phy_db_free(mvm->phy_db);
1024 	kfree(mvm->scan_cmd);
1025 	iwl_trans_op_mode_leave(mvm->trans);
1026 	kfree(mvm->nvm_data);
1027 	kfree(mvm->mei_nvm_data);
1028 
1029 	ieee80211_free_hw(mvm->hw);
1030 }
1031 
1032 static void iwl_mvm_mei_sap_connected(void *priv)
1033 {
1034 	struct iwl_mvm *mvm = priv;
1035 
1036 	if (!mvm->hw_registered)
1037 		schedule_work(&mvm->sap_connected_wk);
1038 }
1039 
1040 static void iwl_mvm_mei_nic_stolen(void *priv)
1041 {
1042 	struct iwl_mvm *mvm = priv;
1043 
1044 	rtnl_lock();
1045 	cfg80211_shutdown_all_interfaces(mvm->hw->wiphy);
1046 	rtnl_unlock();
1047 }
1048 
1049 static const struct iwl_mei_ops mei_ops = {
1050 	.me_conn_status = iwl_mvm_me_conn_status,
1051 	.rfkill = iwl_mvm_mei_rfkill,
1052 	.roaming_forbidden = iwl_mvm_mei_roaming_forbidden,
1053 	.sap_connected = iwl_mvm_mei_sap_connected,
1054 	.nic_stolen = iwl_mvm_mei_nic_stolen,
1055 };
1056 
1057 static struct iwl_op_mode *
1058 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
1059 		      const struct iwl_fw *fw, struct dentry *dbgfs_dir)
1060 {
1061 	struct ieee80211_hw *hw;
1062 	struct iwl_op_mode *op_mode;
1063 	struct iwl_mvm *mvm;
1064 	struct iwl_trans_config trans_cfg = {};
1065 	static const u8 no_reclaim_cmds[] = {
1066 		TX_CMD,
1067 	};
1068 	int scan_size;
1069 	u32 min_backoff;
1070 	struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
1071 
1072 	/*
1073 	 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station
1074 	 * index all over the driver - check that its value corresponds to the
1075 	 * array size.
1076 	 */
1077 	BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) !=
1078 		     IWL_MVM_STATION_COUNT_MAX);
1079 
1080 	/********************************
1081 	 * 1. Allocating and configuring HW data
1082 	 ********************************/
1083 	hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
1084 				sizeof(struct iwl_mvm),
1085 				&iwl_mvm_hw_ops);
1086 	if (!hw)
1087 		return NULL;
1088 
1089 	hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
1090 
1091 	if (cfg->max_tx_agg_size)
1092 		hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
1093 	else
1094 		hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
1095 
1096 	op_mode = hw->priv;
1097 
1098 	mvm = IWL_OP_MODE_GET_MVM(op_mode);
1099 	mvm->dev = trans->dev;
1100 	mvm->trans = trans;
1101 	mvm->cfg = cfg;
1102 	mvm->fw = fw;
1103 	mvm->hw = hw;
1104 
1105 	iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm,
1106 			    &iwl_mvm_sanitize_ops, mvm, dbgfs_dir);
1107 
1108 	iwl_mvm_get_acpi_tables(mvm);
1109 	iwl_uefi_get_sgom_table(trans, &mvm->fwrt);
1110 
1111 	mvm->init_status = 0;
1112 
1113 	if (iwl_mvm_has_new_rx_api(mvm)) {
1114 		op_mode->ops = &iwl_mvm_ops_mq;
1115 		trans->rx_mpdu_cmd_hdr_size =
1116 			(trans->trans_cfg->device_family >=
1117 			 IWL_DEVICE_FAMILY_AX210) ?
1118 			sizeof(struct iwl_rx_mpdu_desc) :
1119 			IWL_RX_DESC_SIZE_V1;
1120 	} else {
1121 		op_mode->ops = &iwl_mvm_ops;
1122 		trans->rx_mpdu_cmd_hdr_size =
1123 			sizeof(struct iwl_rx_mpdu_res_start);
1124 
1125 		if (WARN_ON(trans->num_rx_queues > 1))
1126 			goto out_free;
1127 	}
1128 
1129 	mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
1130 
1131 	if (iwl_mvm_has_new_tx_api(mvm)) {
1132 		/*
1133 		 * If we have the new TX/queue allocation API initialize them
1134 		 * all to invalid numbers. We'll rewrite the ones that we need
1135 		 * later, but that doesn't happen for all of them all of the
1136 		 * time (e.g. P2P Device is optional), and if a dynamic queue
1137 		 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then
1138 		 * iwl_mvm_is_static_queue() erroneously returns true, and we
1139 		 * might have things getting stuck.
1140 		 */
1141 		mvm->aux_queue = IWL_MVM_INVALID_QUEUE;
1142 		mvm->snif_queue = IWL_MVM_INVALID_QUEUE;
1143 		mvm->probe_queue = IWL_MVM_INVALID_QUEUE;
1144 		mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE;
1145 	} else {
1146 		mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
1147 		mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE;
1148 		mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
1149 		mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
1150 	}
1151 
1152 	mvm->sf_state = SF_UNINIT;
1153 	if (iwl_mvm_has_unified_ucode(mvm))
1154 		iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR);
1155 	else
1156 		iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT);
1157 	mvm->drop_bcn_ap_mode = true;
1158 
1159 	mutex_init(&mvm->mutex);
1160 	spin_lock_init(&mvm->async_handlers_lock);
1161 	INIT_LIST_HEAD(&mvm->time_event_list);
1162 	INIT_LIST_HEAD(&mvm->aux_roc_te_list);
1163 	INIT_LIST_HEAD(&mvm->async_handlers_list);
1164 	spin_lock_init(&mvm->time_event_lock);
1165 	INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list);
1166 	INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list);
1167 	INIT_LIST_HEAD(&mvm->resp_pasn_list);
1168 
1169 	INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
1170 	INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
1171 	INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk);
1172 	INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
1173 	INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
1174 	INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
1175 	INIT_LIST_HEAD(&mvm->add_stream_txqs);
1176 
1177 	init_waitqueue_head(&mvm->rx_sync_waitq);
1178 
1179 	mvm->queue_sync_state = 0;
1180 
1181 	SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
1182 
1183 	spin_lock_init(&mvm->tcm.lock);
1184 	INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work);
1185 	mvm->tcm.ts = jiffies;
1186 	mvm->tcm.ll_ts = jiffies;
1187 	mvm->tcm.uapsd_nonagg_ts = jiffies;
1188 
1189 	INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
1190 
1191 	mvm->cmd_ver.d0i3_resp =
1192 		iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD,
1193 					0);
1194 	/* we only support version 1 */
1195 	if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1))
1196 		goto out_free;
1197 
1198 	mvm->cmd_ver.range_resp =
1199 		iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP,
1200 					TOF_RANGE_RESPONSE_NOTIF, 5);
1201 	/* we only support up to version 9 */
1202 	if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9))
1203 		goto out_free;
1204 
1205 	/*
1206 	 * Populate the state variables that the transport layer needs
1207 	 * to know about.
1208 	 */
1209 	trans_cfg.op_mode = op_mode;
1210 	trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
1211 	trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
1212 
1213 	switch (iwlwifi_mod_params.amsdu_size) {
1214 	case IWL_AMSDU_DEF:
1215 		trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1216 		break;
1217 	case IWL_AMSDU_4K:
1218 		trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1219 		break;
1220 	case IWL_AMSDU_8K:
1221 		trans_cfg.rx_buf_size = IWL_AMSDU_8K;
1222 		break;
1223 	case IWL_AMSDU_12K:
1224 		trans_cfg.rx_buf_size = IWL_AMSDU_12K;
1225 		break;
1226 	default:
1227 		pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
1228 		       iwlwifi_mod_params.amsdu_size);
1229 		trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1230 	}
1231 
1232 	trans->wide_cmd_header = true;
1233 	trans_cfg.bc_table_dword =
1234 		mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210;
1235 
1236 	trans_cfg.command_groups = iwl_mvm_groups;
1237 	trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
1238 
1239 	trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
1240 	trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
1241 	trans_cfg.scd_set_active = true;
1242 
1243 	trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
1244 					  driver_data[2]);
1245 
1246 	/* Set a short watchdog for the command queue */
1247 	trans_cfg.cmd_q_wdg_timeout =
1248 		iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
1249 
1250 	snprintf(mvm->hw->wiphy->fw_version,
1251 		 sizeof(mvm->hw->wiphy->fw_version),
1252 		 "%s", fw->fw_version);
1253 
1254 	trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa,
1255 						   IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE);
1256 
1257 	trans_cfg.queue_alloc_cmd_ver =
1258 		iwl_fw_lookup_cmd_ver(mvm->fw,
1259 				      WIDE_ID(DATA_PATH_GROUP,
1260 					      SCD_QUEUE_CONFIG_CMD),
1261 				      0);
1262 	mvm->sta_remove_requires_queue_remove =
1263 		trans_cfg.queue_alloc_cmd_ver > 0;
1264 
1265 	/* Configure transport layer */
1266 	iwl_trans_configure(mvm->trans, &trans_cfg);
1267 
1268 	trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
1269 	trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv;
1270 	trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg;
1271 	memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv,
1272 	       sizeof(trans->dbg.conf_tlv));
1273 	trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv;
1274 
1275 	trans->iml = mvm->fw->iml;
1276 	trans->iml_len = mvm->fw->iml_len;
1277 
1278 	/* set up notification wait support */
1279 	iwl_notification_wait_init(&mvm->notif_wait);
1280 
1281 	/* Init phy db */
1282 	mvm->phy_db = iwl_phy_db_init(trans);
1283 	if (!mvm->phy_db) {
1284 		IWL_ERR(mvm, "Cannot init phy_db\n");
1285 		goto out_free;
1286 	}
1287 
1288 	IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
1289 		 mvm->trans->name, mvm->trans->hw_rev);
1290 
1291 	if (iwlwifi_mod_params.nvm_file)
1292 		mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
1293 	else
1294 		IWL_DEBUG_EEPROM(mvm->trans->dev,
1295 				 "working without external nvm file\n");
1296 
1297 	scan_size = iwl_mvm_scan_size(mvm);
1298 
1299 	mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
1300 	if (!mvm->scan_cmd)
1301 		goto out_free;
1302 
1303 	/* invalidate ids to prevent accidental removal of sta_id 0 */
1304 	mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA;
1305 	mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA;
1306 
1307 	/* Set EBS as successful as long as not stated otherwise by the FW. */
1308 	mvm->last_ebs_successful = true;
1309 
1310 	min_backoff = iwl_mvm_min_backoff(mvm);
1311 	iwl_mvm_thermal_initialize(mvm, min_backoff);
1312 
1313 	if (!iwl_mvm_has_new_rx_stats_api(mvm))
1314 		memset(&mvm->rx_stats_v3, 0,
1315 		       sizeof(struct mvm_statistics_rx_v3));
1316 	else
1317 		memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
1318 
1319 	mvm->debugfs_dir = dbgfs_dir;
1320 
1321 	mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops);
1322 
1323 	if (iwl_mvm_start_get_nvm(mvm)) {
1324 		/*
1325 		 * Getting NVM failed while CSME is the owner, but we are
1326 		 * registered to MEI, we'll get the NVM later when it'll be
1327 		 * possible to get it from CSME.
1328 		 */
1329 		if (trans->csme_own && mvm->mei_registered)
1330 			return op_mode;
1331 
1332 		goto out_thermal_exit;
1333 	}
1334 
1335 
1336 	if (iwl_mvm_start_post_nvm(mvm))
1337 		goto out_thermal_exit;
1338 
1339 	return op_mode;
1340 
1341  out_thermal_exit:
1342 	iwl_mvm_thermal_exit(mvm);
1343 	if (mvm->mei_registered) {
1344 		iwl_mei_start_unregister();
1345 		iwl_mei_unregister_complete();
1346 	}
1347  out_free:
1348 	iwl_fw_flush_dumps(&mvm->fwrt);
1349 	iwl_fw_runtime_free(&mvm->fwrt);
1350 
1351 	if (iwlmvm_mod_params.init_dbg)
1352 		return op_mode;
1353 	iwl_phy_db_free(mvm->phy_db);
1354 	kfree(mvm->scan_cmd);
1355 	iwl_trans_op_mode_leave(trans);
1356 
1357 	ieee80211_free_hw(mvm->hw);
1358 	return NULL;
1359 }
1360 
1361 void iwl_mvm_stop_device(struct iwl_mvm *mvm)
1362 {
1363 	lockdep_assert_held(&mvm->mutex);
1364 
1365 	iwl_fw_cancel_timestamp(&mvm->fwrt);
1366 
1367 	clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1368 
1369 	iwl_fw_dbg_stop_sync(&mvm->fwrt);
1370 	iwl_trans_stop_device(mvm->trans);
1371 	iwl_free_fw_paging(&mvm->fwrt);
1372 	iwl_fw_dump_conf_clear(&mvm->fwrt);
1373 	iwl_mvm_mei_device_down(mvm);
1374 }
1375 
1376 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
1377 {
1378 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1379 	int i;
1380 
1381 	if (mvm->mei_registered) {
1382 		rtnl_lock();
1383 		iwl_mei_set_netdev(NULL);
1384 		rtnl_unlock();
1385 		iwl_mei_start_unregister();
1386 	}
1387 
1388 	/*
1389 	 * After we unregister from mei, the worker can't be scheduled
1390 	 * anymore.
1391 	 */
1392 	cancel_work_sync(&mvm->sap_connected_wk);
1393 
1394 	iwl_mvm_leds_exit(mvm);
1395 
1396 	iwl_mvm_thermal_exit(mvm);
1397 
1398 	/*
1399 	 * If we couldn't get ownership on the device and we couldn't
1400 	 * get the NVM from CSME, we haven't registered to mac80211.
1401 	 * In that case, we didn't fail op_mode_start, because we are
1402 	 * waiting for CSME to allow us to get the NVM to register to
1403 	 * mac80211. If that didn't happen, we haven't registered to
1404 	 * mac80211, hence the if below.
1405 	 */
1406 	if (mvm->hw_registered)
1407 		ieee80211_unregister_hw(mvm->hw);
1408 
1409 	kfree(mvm->scan_cmd);
1410 	kfree(mvm->mcast_filter_cmd);
1411 	mvm->mcast_filter_cmd = NULL;
1412 
1413 	kfree(mvm->error_recovery_buf);
1414 	mvm->error_recovery_buf = NULL;
1415 
1416 	iwl_trans_op_mode_leave(mvm->trans);
1417 
1418 	iwl_phy_db_free(mvm->phy_db);
1419 	mvm->phy_db = NULL;
1420 
1421 	kfree(mvm->nvm_data);
1422 	kfree(mvm->mei_nvm_data);
1423 	kfree(rcu_access_pointer(mvm->csme_conn_info));
1424 	kfree(mvm->temp_nvm_data);
1425 	for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
1426 		kfree(mvm->nvm_sections[i].data);
1427 
1428 	cancel_delayed_work_sync(&mvm->tcm.work);
1429 
1430 	iwl_fw_runtime_free(&mvm->fwrt);
1431 	mutex_destroy(&mvm->mutex);
1432 
1433 	if (mvm->mei_registered)
1434 		iwl_mei_unregister_complete();
1435 
1436 	ieee80211_free_hw(mvm->hw);
1437 }
1438 
1439 struct iwl_async_handler_entry {
1440 	struct list_head list;
1441 	struct iwl_rx_cmd_buffer rxb;
1442 	enum iwl_rx_handler_context context;
1443 	void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1444 };
1445 
1446 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
1447 {
1448 	struct iwl_async_handler_entry *entry, *tmp;
1449 
1450 	spin_lock_bh(&mvm->async_handlers_lock);
1451 	list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
1452 		iwl_free_rxb(&entry->rxb);
1453 		list_del(&entry->list);
1454 		kfree(entry);
1455 	}
1456 	spin_unlock_bh(&mvm->async_handlers_lock);
1457 }
1458 
1459 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
1460 {
1461 	struct iwl_mvm *mvm =
1462 		container_of(wk, struct iwl_mvm, async_handlers_wk);
1463 	struct iwl_async_handler_entry *entry, *tmp;
1464 	LIST_HEAD(local_list);
1465 
1466 	/* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
1467 
1468 	/*
1469 	 * Sync with Rx path with a lock. Remove all the entries from this list,
1470 	 * add them to a local one (lock free), and then handle them.
1471 	 */
1472 	spin_lock_bh(&mvm->async_handlers_lock);
1473 	list_splice_init(&mvm->async_handlers_list, &local_list);
1474 	spin_unlock_bh(&mvm->async_handlers_lock);
1475 
1476 	list_for_each_entry_safe(entry, tmp, &local_list, list) {
1477 		if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1478 			mutex_lock(&mvm->mutex);
1479 		entry->fn(mvm, &entry->rxb);
1480 		iwl_free_rxb(&entry->rxb);
1481 		list_del(&entry->list);
1482 		if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1483 			mutex_unlock(&mvm->mutex);
1484 		kfree(entry);
1485 	}
1486 }
1487 
1488 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
1489 					    struct iwl_rx_packet *pkt)
1490 {
1491 	struct iwl_fw_dbg_trigger_tlv *trig;
1492 	struct iwl_fw_dbg_trigger_cmd *cmds_trig;
1493 	int i;
1494 
1495 	trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
1496 				     FW_DBG_TRIGGER_FW_NOTIF);
1497 	if (!trig)
1498 		return;
1499 
1500 	cmds_trig = (void *)trig->data;
1501 
1502 	for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
1503 		/* don't collect on CMD 0 */
1504 		if (!cmds_trig->cmds[i].cmd_id)
1505 			break;
1506 
1507 		if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
1508 		    cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
1509 			continue;
1510 
1511 		iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
1512 					"CMD 0x%02x.%02x received",
1513 					pkt->hdr.group_id, pkt->hdr.cmd);
1514 		break;
1515 	}
1516 }
1517 
1518 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
1519 			      struct iwl_rx_cmd_buffer *rxb,
1520 			      struct iwl_rx_packet *pkt)
1521 {
1522 	unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);
1523 	int i;
1524 	union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt };
1525 
1526 	iwl_dbg_tlv_time_point(&mvm->fwrt,
1527 			       IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data);
1528 	iwl_mvm_rx_check_trigger(mvm, pkt);
1529 
1530 	/*
1531 	 * Do the notification wait before RX handlers so
1532 	 * even if the RX handler consumes the RXB we have
1533 	 * access to it in the notification wait entry.
1534 	 */
1535 	iwl_notification_wait_notify(&mvm->notif_wait, pkt);
1536 
1537 	for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
1538 		const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
1539 		struct iwl_async_handler_entry *entry;
1540 
1541 		if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
1542 			continue;
1543 
1544 		if (unlikely(pkt_len < rx_h->min_size))
1545 			return;
1546 
1547 		if (rx_h->context == RX_HANDLER_SYNC) {
1548 			rx_h->fn(mvm, rxb);
1549 			return;
1550 		}
1551 
1552 		entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
1553 		/* we can't do much... */
1554 		if (!entry)
1555 			return;
1556 
1557 		entry->rxb._page = rxb_steal_page(rxb);
1558 		entry->rxb._offset = rxb->_offset;
1559 		entry->rxb._rx_page_order = rxb->_rx_page_order;
1560 		entry->fn = rx_h->fn;
1561 		entry->context = rx_h->context;
1562 		spin_lock(&mvm->async_handlers_lock);
1563 		list_add_tail(&entry->list, &mvm->async_handlers_list);
1564 		spin_unlock(&mvm->async_handlers_lock);
1565 		schedule_work(&mvm->async_handlers_wk);
1566 		break;
1567 	}
1568 }
1569 
1570 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
1571 		       struct napi_struct *napi,
1572 		       struct iwl_rx_cmd_buffer *rxb)
1573 {
1574 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
1575 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1576 	u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1577 
1578 	if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1579 		iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
1580 	else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
1581 		iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
1582 	else
1583 		iwl_mvm_rx_common(mvm, rxb, pkt);
1584 }
1585 
1586 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
1587 		   struct napi_struct *napi,
1588 		   struct iwl_rx_cmd_buffer *rxb)
1589 {
1590 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
1591 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1592 	u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1593 
1594 	if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1595 		iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
1596 	else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1597 					 RX_QUEUES_NOTIFICATION)))
1598 		iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0);
1599 	else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
1600 		iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
1601 	else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE))
1602 		iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0);
1603 	else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF))
1604 		iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0);
1605 	else
1606 		iwl_mvm_rx_common(mvm, rxb, pkt);
1607 }
1608 
1609 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1610 			     const struct iwl_device_cmd *cmd)
1611 {
1612 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1613 
1614 	/*
1615 	 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1616 	 * commands that need to block the Tx queues.
1617 	 */
1618 	iwl_trans_block_txq_ptrs(mvm->trans, false);
1619 }
1620 
1621 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue)
1622 {
1623 	return queue == mvm->aux_queue || queue == mvm->probe_queue ||
1624 		queue == mvm->p2p_dev_queue || queue == mvm->snif_queue;
1625 }
1626 
1627 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode,
1628 				       int hw_queue, bool start)
1629 {
1630 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1631 	struct ieee80211_sta *sta;
1632 	struct ieee80211_txq *txq;
1633 	struct iwl_mvm_txq *mvmtxq;
1634 	int i;
1635 	unsigned long tid_bitmap;
1636 	struct iwl_mvm_sta *mvmsta;
1637 	u8 sta_id;
1638 
1639 	sta_id = iwl_mvm_has_new_tx_api(mvm) ?
1640 		mvm->tvqm_info[hw_queue].sta_id :
1641 		mvm->queue_info[hw_queue].ra_sta_id;
1642 
1643 	if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations))
1644 		return;
1645 
1646 	rcu_read_lock();
1647 
1648 	sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1649 	if (IS_ERR_OR_NULL(sta))
1650 		goto out;
1651 	mvmsta = iwl_mvm_sta_from_mac80211(sta);
1652 
1653 	if (iwl_mvm_is_static_queue(mvm, hw_queue)) {
1654 		if (!start)
1655 			ieee80211_stop_queues(mvm->hw);
1656 		else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1657 			ieee80211_wake_queues(mvm->hw);
1658 
1659 		goto out;
1660 	}
1661 
1662 	if (iwl_mvm_has_new_tx_api(mvm)) {
1663 		int tid = mvm->tvqm_info[hw_queue].txq_tid;
1664 
1665 		tid_bitmap = BIT(tid);
1666 	} else {
1667 		tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap;
1668 	}
1669 
1670 	for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1671 		int tid = i;
1672 
1673 		if (tid == IWL_MAX_TID_COUNT)
1674 			tid = IEEE80211_NUM_TIDS;
1675 
1676 		txq = sta->txq[tid];
1677 		mvmtxq = iwl_mvm_txq_from_mac80211(txq);
1678 		mvmtxq->stopped = !start;
1679 
1680 		if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1681 			iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
1682 	}
1683 
1684 out:
1685 	rcu_read_unlock();
1686 }
1687 
1688 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1689 {
1690 	iwl_mvm_queue_state_change(op_mode, hw_queue, false);
1691 }
1692 
1693 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1694 {
1695 	iwl_mvm_queue_state_change(op_mode, hw_queue, true);
1696 }
1697 
1698 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm)
1699 {
1700 	bool state = iwl_mvm_is_radio_killed(mvm);
1701 
1702 	if (state)
1703 		wake_up(&mvm->rx_sync_waitq);
1704 
1705 	wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
1706 }
1707 
1708 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1709 {
1710 	if (state)
1711 		set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1712 	else
1713 		clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1714 
1715 	iwl_mvm_set_rfkill_state(mvm);
1716 }
1717 
1718 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm)
1719 {
1720 	return rcu_dereference_protected(mvm->csme_conn_info,
1721 					 lockdep_is_held(&mvm->mutex));
1722 }
1723 
1724 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
1725 {
1726 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1727 	bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done);
1728 	bool unified = iwl_mvm_has_unified_ucode(mvm);
1729 
1730 	if (state)
1731 		set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1732 	else
1733 		clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1734 
1735 	iwl_mvm_set_rfkill_state(mvm);
1736 
1737 	 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */
1738 	if (rfkill_safe_init_done)
1739 		iwl_abort_notification_waits(&mvm->notif_wait);
1740 
1741 	/*
1742 	 * Don't ask the transport to stop the firmware. We'll do it
1743 	 * after cfg80211 takes us down.
1744 	 */
1745 	if (unified)
1746 		return false;
1747 
1748 	/*
1749 	 * Stop the device if we run OPERATIONAL firmware or if we are in the
1750 	 * middle of the calibrations.
1751 	 */
1752 	return state && rfkill_safe_init_done;
1753 }
1754 
1755 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1756 {
1757 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1758 	struct ieee80211_tx_info *info;
1759 
1760 	info = IEEE80211_SKB_CB(skb);
1761 	iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1762 	ieee80211_free_txskb(mvm->hw, skb);
1763 }
1764 
1765 struct iwl_mvm_reprobe {
1766 	struct device *dev;
1767 	struct work_struct work;
1768 };
1769 
1770 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1771 {
1772 	struct iwl_mvm_reprobe *reprobe;
1773 
1774 	reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1775 	if (device_reprobe(reprobe->dev))
1776 		dev_err(reprobe->dev, "reprobe failed!\n");
1777 	put_device(reprobe->dev);
1778 	kfree(reprobe);
1779 	module_put(THIS_MODULE);
1780 }
1781 
1782 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1783 {
1784 	iwl_abort_notification_waits(&mvm->notif_wait);
1785 	iwl_dbg_tlv_del_timers(mvm->trans);
1786 
1787 	/*
1788 	 * This is a bit racy, but worst case we tell mac80211 about
1789 	 * a stopped/aborted scan when that was already done which
1790 	 * is not a problem. It is necessary to abort any os scan
1791 	 * here because mac80211 requires having the scan cleared
1792 	 * before restarting.
1793 	 * We'll reset the scan_status to NONE in restart cleanup in
1794 	 * the next start() call from mac80211. If restart isn't called
1795 	 * (no fw restart) scan status will stay busy.
1796 	 */
1797 	iwl_mvm_report_scan_aborted(mvm);
1798 
1799 	/*
1800 	 * If we're restarting already, don't cycle restarts.
1801 	 * If INIT fw asserted, it will likely fail again.
1802 	 * If WoWLAN fw asserted, don't restart either, mac80211
1803 	 * can't recover this since we're already half suspended.
1804 	 */
1805 	if (!mvm->fw_restart && fw_error) {
1806 		iwl_fw_error_collect(&mvm->fwrt, false);
1807 	} else if (test_bit(IWL_MVM_STATUS_STARTING,
1808 			    &mvm->status)) {
1809 		IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n");
1810 	} else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1811 		struct iwl_mvm_reprobe *reprobe;
1812 
1813 		IWL_ERR(mvm,
1814 			"Firmware error during reconfiguration - reprobe!\n");
1815 
1816 		/*
1817 		 * get a module reference to avoid doing this while unloading
1818 		 * anyway and to avoid scheduling a work with code that's
1819 		 * being removed.
1820 		 */
1821 		if (!try_module_get(THIS_MODULE)) {
1822 			IWL_ERR(mvm, "Module is being unloaded - abort\n");
1823 			return;
1824 		}
1825 
1826 		reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1827 		if (!reprobe) {
1828 			module_put(THIS_MODULE);
1829 			return;
1830 		}
1831 		reprobe->dev = get_device(mvm->trans->dev);
1832 		INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1833 		schedule_work(&reprobe->work);
1834 	} else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1835 			    &mvm->status)) {
1836 		IWL_ERR(mvm, "HW restart already requested, but not started\n");
1837 	} else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR &&
1838 		   mvm->hw_registered &&
1839 		   !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
1840 		/* This should be first thing before trying to collect any
1841 		 * data to avoid endless loops if any HW error happens while
1842 		 * collecting debug data.
1843 		 */
1844 		set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1845 
1846 		if (mvm->fw->ucode_capa.error_log_size) {
1847 			u32 src_size = mvm->fw->ucode_capa.error_log_size;
1848 			u32 src_addr = mvm->fw->ucode_capa.error_log_addr;
1849 			u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC);
1850 
1851 			if (recover_buf) {
1852 				mvm->error_recovery_buf = recover_buf;
1853 				iwl_trans_read_mem_bytes(mvm->trans,
1854 							 src_addr,
1855 							 recover_buf,
1856 							 src_size);
1857 			}
1858 		}
1859 
1860 		iwl_fw_error_collect(&mvm->fwrt, false);
1861 
1862 		if (fw_error && mvm->fw_restart > 0) {
1863 			mvm->fw_restart--;
1864 			ieee80211_restart_hw(mvm->hw);
1865 		} else if (mvm->fwrt.trans->dbg.restart_required) {
1866 			IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n");
1867 			mvm->fwrt.trans->dbg.restart_required = FALSE;
1868 			ieee80211_restart_hw(mvm->hw);
1869 		} else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) {
1870 			ieee80211_restart_hw(mvm->hw);
1871 		}
1872 	}
1873 }
1874 
1875 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
1876 {
1877 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1878 
1879 	if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) &&
1880 	    !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE,
1881 				&mvm->status))
1882 		iwl_mvm_dump_nic_error_log(mvm);
1883 
1884 	if (sync) {
1885 		iwl_fw_error_collect(&mvm->fwrt, true);
1886 		/*
1887 		 * Currently, the only case for sync=true is during
1888 		 * shutdown, so just stop in this case. If/when that
1889 		 * changes, we need to be a bit smarter here.
1890 		 */
1891 		return;
1892 	}
1893 
1894 	/*
1895 	 * If the firmware crashes while we're already considering it
1896 	 * to be dead then don't ask for a restart, that cannot do
1897 	 * anything useful anyway.
1898 	 */
1899 	if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status))
1900 		return;
1901 
1902 	iwl_mvm_nic_restart(mvm, false);
1903 }
1904 
1905 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1906 {
1907 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1908 
1909 	WARN_ON(1);
1910 	iwl_mvm_nic_restart(mvm, true);
1911 }
1912 
1913 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode,
1914 				       enum iwl_fw_ini_time_point tp_id,
1915 				       union iwl_dbg_tlv_tp_data *tp_data)
1916 {
1917 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1918 
1919 	iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data);
1920 }
1921 
1922 #define IWL_MVM_COMMON_OPS					\
1923 	/* these could be differentiated */			\
1924 	.async_cb = iwl_mvm_async_cb,				\
1925 	.queue_full = iwl_mvm_stop_sw_queue,			\
1926 	.queue_not_full = iwl_mvm_wake_sw_queue,		\
1927 	.hw_rf_kill = iwl_mvm_set_hw_rfkill_state,		\
1928 	.free_skb = iwl_mvm_free_skb,				\
1929 	.nic_error = iwl_mvm_nic_error,				\
1930 	.cmd_queue_full = iwl_mvm_cmd_queue_full,		\
1931 	.nic_config = iwl_mvm_nic_config,			\
1932 	/* as we only register one, these MUST be common! */	\
1933 	.start = iwl_op_mode_mvm_start,				\
1934 	.stop = iwl_op_mode_mvm_stop,				\
1935 	.time_point = iwl_op_mode_mvm_time_point
1936 
1937 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1938 	IWL_MVM_COMMON_OPS,
1939 	.rx = iwl_mvm_rx,
1940 };
1941 
1942 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1943 			      struct napi_struct *napi,
1944 			      struct iwl_rx_cmd_buffer *rxb,
1945 			      unsigned int queue)
1946 {
1947 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1948 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
1949 	u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1950 
1951 	if (unlikely(queue >= mvm->trans->num_rx_queues))
1952 		return;
1953 
1954 	if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
1955 		iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
1956 	else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1957 					 RX_QUEUES_NOTIFICATION)))
1958 		iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue);
1959 	else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1960 		iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1961 }
1962 
1963 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1964 	IWL_MVM_COMMON_OPS,
1965 	.rx = iwl_mvm_rx_mq,
1966 	.rx_rss = iwl_mvm_rx_mq_rss,
1967 };
1968