1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3  * Copyright (C) 2012-2014, 2018-2023 Intel Corporation
4  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5  * Copyright (C) 2016-2017 Intel Deutschland GmbH
6  */
7 #include <linux/kernel.h>
8 #include <linux/slab.h>
9 #include <linux/skbuff.h>
10 #include <linux/netdevice.h>
11 #include <linux/etherdevice.h>
12 #include <linux/ip.h>
13 #include <linux/if_arp.h>
14 #include <linux/time.h>
15 #include <net/mac80211.h>
16 #include <net/ieee80211_radiotap.h>
17 #include <net/tcp.h>
18 
19 #include "iwl-drv.h"
20 #include "iwl-op-mode.h"
21 #include "iwl-io.h"
22 #include "mvm.h"
23 #include "sta.h"
24 #include "time-event.h"
25 #include "iwl-eeprom-parse.h"
26 #include "iwl-phy-db.h"
27 #include "testmode.h"
28 #include "fw/error-dump.h"
29 #include "iwl-prph.h"
30 #include "iwl-nvm-parse.h"
31 #include "time-sync.h"
32 
33 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
34 	{
35 		.max = 1,
36 		.types = BIT(NL80211_IFTYPE_STATION),
37 	},
38 	{
39 		.max = 1,
40 		.types = BIT(NL80211_IFTYPE_AP) |
41 			BIT(NL80211_IFTYPE_P2P_CLIENT) |
42 			BIT(NL80211_IFTYPE_P2P_GO),
43 	},
44 	{
45 		.max = 1,
46 		.types = BIT(NL80211_IFTYPE_P2P_DEVICE),
47 	},
48 };
49 
50 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
51 	{
52 		.num_different_channels = 2,
53 		.max_interfaces = 3,
54 		.limits = iwl_mvm_limits,
55 		.n_limits = ARRAY_SIZE(iwl_mvm_limits),
56 	},
57 };
58 
59 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = {
60 	.max_peers = IWL_MVM_TOF_MAX_APS,
61 	.report_ap_tsf = 1,
62 	.randomize_mac_addr = 1,
63 
64 	.ftm = {
65 		.supported = 1,
66 		.asap = 1,
67 		.non_asap = 1,
68 		.request_lci = 1,
69 		.request_civicloc = 1,
70 		.trigger_based = 1,
71 		.non_trigger_based = 1,
72 		.max_bursts_exponent = -1, /* all supported */
73 		.max_ftms_per_burst = 0, /* no limits */
74 		.bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
75 			      BIT(NL80211_CHAN_WIDTH_20) |
76 			      BIT(NL80211_CHAN_WIDTH_40) |
77 			      BIT(NL80211_CHAN_WIDTH_80) |
78 			      BIT(NL80211_CHAN_WIDTH_160),
79 		.preambles = BIT(NL80211_PREAMBLE_LEGACY) |
80 			     BIT(NL80211_PREAMBLE_HT) |
81 			     BIT(NL80211_PREAMBLE_VHT) |
82 			     BIT(NL80211_PREAMBLE_HE),
83 	},
84 };
85 
86 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
87 				 enum set_key_cmd cmd,
88 				 struct ieee80211_vif *vif,
89 				 struct ieee80211_sta *sta,
90 				 struct ieee80211_key_conf *key);
91 
iwl_mvm_reset_phy_ctxts(struct iwl_mvm * mvm)92 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
93 {
94 	int i;
95 
96 	memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
97 	for (i = 0; i < NUM_PHY_CTX; i++) {
98 		mvm->phy_ctxts[i].id = i;
99 		mvm->phy_ctxts[i].ref = 0;
100 	}
101 }
102 
iwl_mvm_get_regdomain(struct wiphy * wiphy,const char * alpha2,enum iwl_mcc_source src_id,bool * changed)103 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
104 						  const char *alpha2,
105 						  enum iwl_mcc_source src_id,
106 						  bool *changed)
107 {
108 	struct ieee80211_regdomain *regd = NULL;
109 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
110 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
111 	struct iwl_mcc_update_resp_v8 *resp;
112 	u8 resp_ver;
113 
114 	IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
115 
116 	lockdep_assert_held(&mvm->mutex);
117 
118 	resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
119 	if (IS_ERR_OR_NULL(resp)) {
120 		IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
121 			      PTR_ERR_OR_ZERO(resp));
122 		resp = NULL;
123 		goto out;
124 	}
125 
126 	if (changed) {
127 		u32 status = le32_to_cpu(resp->status);
128 
129 		*changed = (status == MCC_RESP_NEW_CHAN_PROFILE ||
130 			    status == MCC_RESP_ILLEGAL);
131 	}
132 	resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP,
133 					   MCC_UPDATE_CMD, 0);
134 	IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver);
135 
136 	regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
137 				      __le32_to_cpu(resp->n_channels),
138 				      resp->channels,
139 				      __le16_to_cpu(resp->mcc),
140 				      __le16_to_cpu(resp->geo_info),
141 				      le32_to_cpu(resp->cap), resp_ver);
142 	/* Store the return source id */
143 	src_id = resp->source_id;
144 	if (IS_ERR_OR_NULL(regd)) {
145 		IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
146 			      PTR_ERR_OR_ZERO(regd));
147 		goto out;
148 	}
149 
150 	IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
151 		      regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
152 	mvm->lar_regdom_set = true;
153 	mvm->mcc_src = src_id;
154 
155 	/* Some kind of regulatory mess means we need to currently disallow
156 	 * puncturing in the US and Canada. Do that here, at least until we
157 	 * figure out the new chanctx APIs for puncturing.
158 	 */
159 	if (resp->mcc == cpu_to_le16(IWL_MCC_US) ||
160 	    resp->mcc == cpu_to_le16(IWL_MCC_CANADA))
161 		ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING);
162 	else
163 		__clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags);
164 
165 	iwl_mei_set_country_code(__le16_to_cpu(resp->mcc));
166 
167 out:
168 	kfree(resp);
169 	return regd;
170 }
171 
iwl_mvm_update_changed_regdom(struct iwl_mvm * mvm)172 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
173 {
174 	bool changed;
175 	struct ieee80211_regdomain *regd;
176 
177 	if (!iwl_mvm_is_lar_supported(mvm))
178 		return;
179 
180 	regd = iwl_mvm_get_current_regdomain(mvm, &changed);
181 	if (!IS_ERR_OR_NULL(regd)) {
182 		/* only update the regulatory core if changed */
183 		if (changed)
184 			regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
185 
186 		kfree(regd);
187 	}
188 }
189 
iwl_mvm_get_current_regdomain(struct iwl_mvm * mvm,bool * changed)190 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
191 							  bool *changed)
192 {
193 	return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
194 				     iwl_mvm_is_wifi_mcc_supported(mvm) ?
195 				     MCC_SOURCE_GET_CURRENT :
196 				     MCC_SOURCE_OLD_FW, changed);
197 }
198 
iwl_mvm_init_fw_regd(struct iwl_mvm * mvm,bool force_regd_sync)199 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync)
200 {
201 	enum iwl_mcc_source used_src;
202 	struct ieee80211_regdomain *regd;
203 	int ret;
204 	bool changed;
205 	const struct ieee80211_regdomain *r =
206 			wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd);
207 
208 	if (!r)
209 		return -ENOENT;
210 
211 	/* save the last source in case we overwrite it below */
212 	used_src = mvm->mcc_src;
213 	if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
214 		/* Notify the firmware we support wifi location updates */
215 		regd = iwl_mvm_get_current_regdomain(mvm, NULL);
216 		if (!IS_ERR_OR_NULL(regd))
217 			kfree(regd);
218 	}
219 
220 	/* Now set our last stored MCC and source */
221 	regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
222 				     &changed);
223 	if (IS_ERR_OR_NULL(regd))
224 		return -EIO;
225 
226 	/* update cfg80211 if the regdomain was changed or the caller explicitly
227 	 * asked to update regdomain
228 	 */
229 	if (changed || force_regd_sync)
230 		ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd);
231 	else
232 		ret = 0;
233 
234 	kfree(regd);
235 	return ret;
236 }
237 
238 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */
239 static const u8 he_if_types_ext_capa_sta[] = {
240 	 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
241 	 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,
242 	 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
243 	       WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
244 	 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
245 };
246 
247 static const u8 tm_if_types_ext_capa_sta[] = {
248 	 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
249 	 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT |
250 	       WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT,
251 	 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
252 	       WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
253 	 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
254 	 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT,
255 };
256 
257 /* Additional interface types for which extended capabilities are
258  * specified separately
259  */
260 
261 #define IWL_MVM_EMLSR_CAPA	(IEEE80211_EML_CAP_EMLSR_SUPP | \
262 				 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \
263 					__bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \
264 				 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \
265 					__bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY))
266 
267 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = {
268 	{
269 		.iftype = NL80211_IFTYPE_STATION,
270 		.extended_capabilities = he_if_types_ext_capa_sta,
271 		.extended_capabilities_mask = he_if_types_ext_capa_sta,
272 		.extended_capabilities_len = sizeof(he_if_types_ext_capa_sta),
273 		/* relevant only if EHT is supported */
274 		.eml_capabilities = IWL_MVM_EMLSR_CAPA,
275 	},
276 	{
277 		.iftype = NL80211_IFTYPE_STATION,
278 		.extended_capabilities = tm_if_types_ext_capa_sta,
279 		.extended_capabilities_mask = tm_if_types_ext_capa_sta,
280 		.extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta),
281 		/* relevant only if EHT is supported */
282 		.eml_capabilities = IWL_MVM_EMLSR_CAPA,
283 	},
284 };
285 
iwl_mvm_op_get_antenna(struct ieee80211_hw * hw,u32 * tx_ant,u32 * rx_ant)286 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
287 {
288 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
289 	*tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
290 	*rx_ant = iwl_mvm_get_valid_rx_ant(mvm);
291 	return 0;
292 }
293 
iwl_mvm_op_set_antenna(struct ieee80211_hw * hw,u32 tx_ant,u32 rx_ant)294 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
295 {
296 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
297 
298 	/* This has been tested on those devices only */
299 	if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 &&
300 	    mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000)
301 		return -EOPNOTSUPP;
302 
303 	if (!mvm->nvm_data)
304 		return -EBUSY;
305 
306 	/* mac80211 ensures the device is not started,
307 	 * so the firmware cannot be running
308 	 */
309 
310 	mvm->set_tx_ant = tx_ant;
311 	mvm->set_rx_ant = rx_ant;
312 
313 	iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw);
314 
315 	return 0;
316 }
317 
iwl_mvm_mac_setup_register(struct iwl_mvm * mvm)318 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
319 {
320 	struct ieee80211_hw *hw = mvm->hw;
321 	int num_mac, ret, i;
322 	static const u32 mvm_ciphers[] = {
323 		WLAN_CIPHER_SUITE_WEP40,
324 		WLAN_CIPHER_SUITE_WEP104,
325 		WLAN_CIPHER_SUITE_TKIP,
326 		WLAN_CIPHER_SUITE_CCMP,
327 	};
328 #ifdef CONFIG_PM_SLEEP
329 	bool unified = fw_has_capa(&mvm->fw->ucode_capa,
330 				   IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
331 #endif
332 	u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);
333 	u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);
334 
335 	/* Tell mac80211 our characteristics */
336 	ieee80211_hw_set(hw, SIGNAL_DBM);
337 	ieee80211_hw_set(hw, SPECTRUM_MGMT);
338 	ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
339 	ieee80211_hw_set(hw, WANT_MONITOR_VIF);
340 	ieee80211_hw_set(hw, SUPPORTS_PS);
341 	ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
342 	ieee80211_hw_set(hw, AMPDU_AGGREGATION);
343 	ieee80211_hw_set(hw, CONNECTION_MONITOR);
344 	ieee80211_hw_set(hw, CHANCTX_STA_CSA);
345 	ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
346 	ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
347 	ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
348 	ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
349 	ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
350 	ieee80211_hw_set(hw, BUFF_MMPDU_TXQ);
351 	ieee80211_hw_set(hw, STA_MMPDU_TXQ);
352 
353 	/* Set this early since we need to have it for the check below */
354 	if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable &&
355 	    !iwlwifi_mod_params.disable_11ax &&
356 	    !iwlwifi_mod_params.disable_11be)
357 		hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO;
358 
359 	/* With MLD FW API, it tracks timing by itself,
360 	 * no need for any timing from the host
361 	 */
362 	if (!mvm->mld_api_is_used)
363 		ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
364 
365 	/* We should probably have this, but mac80211
366 	 * currently doesn't support it for MLO.
367 	 */
368 	if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO))
369 		ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP);
370 
371 	/*
372 	 * On older devices, enabling TX A-MSDU occasionally leads to
373 	 * something getting messed up, the command read from the FIFO
374 	 * gets out of sync and isn't a TX command, so that we have an
375 	 * assert EDC.
376 	 *
377 	 * It's not clear where the bug is, but since we didn't used to
378 	 * support A-MSDU until moving the mac80211 iTXQs, just leave it
379 	 * for older devices. We also don't see this issue on any newer
380 	 * devices.
381 	 */
382 	if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000)
383 		ieee80211_hw_set(hw, TX_AMSDU);
384 	ieee80211_hw_set(hw, TX_FRAG_LIST);
385 
386 	if (iwl_mvm_has_tlc_offload(mvm)) {
387 		ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
388 		ieee80211_hw_set(hw, HAS_RATE_CONTROL);
389 	}
390 
391 	/* We want to use the mac80211's reorder buffer for 9000 */
392 	if (iwl_mvm_has_new_rx_api(mvm) &&
393 	    mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000)
394 		ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
395 
396 	if (fw_has_capa(&mvm->fw->ucode_capa,
397 			IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
398 		ieee80211_hw_set(hw, AP_LINK_PS);
399 	} else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
400 		/*
401 		 * we absolutely need this for the new TX API since that comes
402 		 * with many more queues than the current code can deal with
403 		 * for station powersave
404 		 */
405 		return -EINVAL;
406 	}
407 
408 	if (mvm->trans->num_rx_queues > 1)
409 		ieee80211_hw_set(hw, USES_RSS);
410 
411 	if (mvm->trans->max_skb_frags)
412 		hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
413 
414 	hw->queues = IEEE80211_NUM_ACS;
415 	hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
416 	hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
417 				    IEEE80211_RADIOTAP_MCS_HAVE_STBC;
418 	hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
419 		IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
420 
421 	hw->radiotap_timestamp.units_pos =
422 		IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
423 		IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
424 	/* this is the case for CCK frames, it's better (only 8) for OFDM */
425 	hw->radiotap_timestamp.accuracy = 22;
426 
427 	if (!iwl_mvm_has_tlc_offload(mvm))
428 		hw->rate_control_algorithm = RS_NAME;
429 
430 	hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
431 	hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
432 	hw->max_tx_fragments = mvm->trans->max_skb_frags;
433 
434 	BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
435 	memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
436 	hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
437 	hw->wiphy->cipher_suites = mvm->ciphers;
438 
439 	if (iwl_mvm_has_new_rx_api(mvm)) {
440 		mvm->ciphers[hw->wiphy->n_cipher_suites] =
441 			WLAN_CIPHER_SUITE_GCMP;
442 		hw->wiphy->n_cipher_suites++;
443 		mvm->ciphers[hw->wiphy->n_cipher_suites] =
444 			WLAN_CIPHER_SUITE_GCMP_256;
445 		hw->wiphy->n_cipher_suites++;
446 	}
447 
448 	if (iwlwifi_mod_params.swcrypto)
449 		IWL_ERR(mvm,
450 			"iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n");
451 	if (!iwlwifi_mod_params.bt_coex_active)
452 		IWL_ERR(mvm,
453 			"iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n");
454 
455 	ieee80211_hw_set(hw, MFP_CAPABLE);
456 	mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC;
457 	hw->wiphy->n_cipher_suites++;
458 	if (iwl_mvm_has_new_rx_api(mvm)) {
459 		mvm->ciphers[hw->wiphy->n_cipher_suites] =
460 			WLAN_CIPHER_SUITE_BIP_GMAC_128;
461 		hw->wiphy->n_cipher_suites++;
462 		mvm->ciphers[hw->wiphy->n_cipher_suites] =
463 			WLAN_CIPHER_SUITE_BIP_GMAC_256;
464 		hw->wiphy->n_cipher_suites++;
465 	}
466 
467 	wiphy_ext_feature_set(hw->wiphy,
468 			      NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
469 	wiphy_ext_feature_set(hw->wiphy,
470 			      NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT);
471 
472 	if (fw_has_capa(&mvm->fw->ucode_capa,
473 			IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) {
474 		wiphy_ext_feature_set(hw->wiphy,
475 				      NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);
476 		hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa;
477 	}
478 
479 	if (sec_key_ver &&
480 	    fw_has_capa(&mvm->fw->ucode_capa,
481 			IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT))
482 		wiphy_ext_feature_set(hw->wiphy,
483 				      NL80211_EXT_FEATURE_BEACON_PROTECTION);
484 	else if (fw_has_capa(&mvm->fw->ucode_capa,
485 			     IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT))
486 		wiphy_ext_feature_set(hw->wiphy,
487 				      NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT);
488 
489 	if (fw_has_capa(&mvm->fw->ucode_capa,
490 			IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM))
491 		hw->wiphy->hw_timestamp_max_peers = 1;
492 
493 	ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
494 	hw->wiphy->features |=
495 		NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
496 		NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
497 		NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
498 
499 	hw->sta_data_size = sizeof(struct iwl_mvm_sta);
500 	hw->vif_data_size = sizeof(struct iwl_mvm_vif);
501 	hw->chanctx_data_size = sizeof(u16);
502 	hw->txq_data_size = sizeof(struct iwl_mvm_txq);
503 
504 	hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
505 		BIT(NL80211_IFTYPE_P2P_CLIENT) |
506 		BIT(NL80211_IFTYPE_AP) |
507 		BIT(NL80211_IFTYPE_P2P_GO) |
508 		BIT(NL80211_IFTYPE_P2P_DEVICE) |
509 		BIT(NL80211_IFTYPE_ADHOC);
510 
511 	hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
512 	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
513 
514 	/* The new Tx API does not allow to pass the key or keyid of a MPDU to
515 	 * the hw, preventing us to control which key(id) to use per MPDU.
516 	 * Till that's fixed we can't use Extended Key ID for the newer cards.
517 	 */
518 	if (!iwl_mvm_has_new_tx_api(mvm))
519 		wiphy_ext_feature_set(hw->wiphy,
520 				      NL80211_EXT_FEATURE_EXT_KEY_ID);
521 	hw->wiphy->features |= NL80211_FEATURE_HT_IBSS;
522 
523 	hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
524 	if (iwl_mvm_is_lar_supported(mvm))
525 		hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
526 	else
527 		hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
528 					       REGULATORY_DISABLE_BEACON_HINTS;
529 
530 	if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
531 		wiphy_ext_feature_set(hw->wiphy,
532 				      NL80211_EXT_FEATURE_DFS_CONCURRENT);
533 
534 	hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
535 	hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
536 	hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ;
537 
538 	hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
539 	hw->wiphy->n_iface_combinations =
540 		ARRAY_SIZE(iwl_mvm_iface_combinations);
541 
542 	hw->wiphy->max_remain_on_channel_duration = 10000;
543 	hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL;
544 
545 	/* Extract MAC address */
546 	memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
547 	hw->wiphy->addresses = mvm->addresses;
548 	hw->wiphy->n_addresses = 1;
549 
550 	/* Extract additional MAC addresses if available */
551 	num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
552 		min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
553 
554 	for (i = 1; i < num_mac; i++) {
555 		memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
556 		       ETH_ALEN);
557 		mvm->addresses[i].addr[5]++;
558 		hw->wiphy->n_addresses++;
559 	}
560 
561 	iwl_mvm_reset_phy_ctxts(mvm);
562 
563 	hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
564 
565 	hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
566 
567 	BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
568 	BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
569 		     IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
570 
571 	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
572 		mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
573 	else
574 		mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
575 
576 	if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
577 		hw->wiphy->bands[NL80211_BAND_2GHZ] =
578 			&mvm->nvm_data->bands[NL80211_BAND_2GHZ];
579 	if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
580 		hw->wiphy->bands[NL80211_BAND_5GHZ] =
581 			&mvm->nvm_data->bands[NL80211_BAND_5GHZ];
582 
583 		if (fw_has_capa(&mvm->fw->ucode_capa,
584 				IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
585 		    fw_has_api(&mvm->fw->ucode_capa,
586 			       IWL_UCODE_TLV_API_LQ_SS_PARAMS))
587 			hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
588 				IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
589 	}
590 	if (fw_has_capa(&mvm->fw->ucode_capa,
591 			IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) &&
592 	    mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels)
593 		hw->wiphy->bands[NL80211_BAND_6GHZ] =
594 			&mvm->nvm_data->bands[NL80211_BAND_6GHZ];
595 
596 	hw->wiphy->hw_version = mvm->trans->hw_id;
597 
598 	if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
599 		hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
600 	else
601 		hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
602 
603 	hw->wiphy->max_sched_scan_reqs = 1;
604 	hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
605 	hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw);
606 	/* we create the 802.11 header and zero length SSID IE. */
607 	hw->wiphy->max_sched_scan_ie_len =
608 		SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
609 	hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
610 	hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
611 
612 	/*
613 	 * the firmware uses u8 for num of iterations, but 0xff is saved for
614 	 * infinite loop, so the maximum number of iterations is actually 254.
615 	 */
616 	hw->wiphy->max_sched_scan_plan_iterations = 254;
617 
618 	hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
619 			       NL80211_FEATURE_LOW_PRIORITY_SCAN |
620 			       NL80211_FEATURE_P2P_GO_OPPPS |
621 			       NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
622 			       NL80211_FEATURE_DYNAMIC_SMPS |
623 			       NL80211_FEATURE_STATIC_SMPS |
624 			       NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
625 
626 	if (fw_has_capa(&mvm->fw->ucode_capa,
627 			IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
628 		hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
629 	if (fw_has_capa(&mvm->fw->ucode_capa,
630 			IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
631 		hw->wiphy->features |= NL80211_FEATURE_QUIET;
632 
633 	if (fw_has_capa(&mvm->fw->ucode_capa,
634 			IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
635 		hw->wiphy->features |=
636 			NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
637 
638 	if (fw_has_capa(&mvm->fw->ucode_capa,
639 			IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
640 		hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
641 
642 	if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL,
643 				  IWL_FW_CMD_VER_UNKNOWN) == 3)
644 		hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK;
645 
646 	if (fw_has_api(&mvm->fw->ucode_capa,
647 		       IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
648 		wiphy_ext_feature_set(hw->wiphy,
649 				      NL80211_EXT_FEATURE_SCAN_START_TIME);
650 		wiphy_ext_feature_set(hw->wiphy,
651 				      NL80211_EXT_FEATURE_BSS_PARENT_TSF);
652 	}
653 
654 	if (iwl_mvm_is_oce_supported(mvm)) {
655 		u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0);
656 
657 		wiphy_ext_feature_set(hw->wiphy,
658 			NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP);
659 		wiphy_ext_feature_set(hw->wiphy,
660 			NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME);
661 		wiphy_ext_feature_set(hw->wiphy,
662 			NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE);
663 
664 		/* Old firmware also supports probe deferral and suppression */
665 		if (scan_ver < 15)
666 			wiphy_ext_feature_set(hw->wiphy,
667 					      NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION);
668 	}
669 
670 	hw->wiphy->iftype_ext_capab = NULL;
671 	hw->wiphy->num_iftype_ext_capab = 0;
672 
673 	if (mvm->nvm_data->sku_cap_11ax_enable &&
674 	    !iwlwifi_mod_params.disable_11ax) {
675 		hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa;
676 		hw->wiphy->num_iftype_ext_capab =
677 			ARRAY_SIZE(add_iftypes_ext_capa) - 1;
678 
679 		ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
680 		ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID);
681 	}
682 
683 	if (iwl_fw_lookup_cmd_ver(mvm->fw,
684 				  WIDE_ID(DATA_PATH_GROUP,
685 					  WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD),
686 				  IWL_FW_CMD_VER_UNKNOWN) >= 1) {
687 		IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n");
688 
689 		if (!hw->wiphy->iftype_ext_capab) {
690 			hw->wiphy->num_iftype_ext_capab = 1;
691 			hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa +
692 				ARRAY_SIZE(add_iftypes_ext_capa) - 1;
693 		} else {
694 			hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1;
695 		}
696 	}
697 
698 	mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
699 
700 #ifdef CONFIG_PM_SLEEP
701 	if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) &&
702 	    mvm->trans->ops->d3_suspend &&
703 	    mvm->trans->ops->d3_resume &&
704 	    device_can_wakeup(mvm->trans->dev)) {
705 		mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
706 				     WIPHY_WOWLAN_DISCONNECT |
707 				     WIPHY_WOWLAN_EAP_IDENTITY_REQ |
708 				     WIPHY_WOWLAN_RFKILL_RELEASE |
709 				     WIPHY_WOWLAN_NET_DETECT;
710 		mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
711 				     WIPHY_WOWLAN_GTK_REKEY_FAILURE |
712 				     WIPHY_WOWLAN_4WAY_HANDSHAKE;
713 
714 		mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
715 		mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
716 		mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
717 		mvm->wowlan.max_nd_match_sets =
718 			iwl_umac_scan_get_max_profiles(mvm->fw);
719 		hw->wiphy->wowlan = &mvm->wowlan;
720 	}
721 #endif
722 
723 	ret = iwl_mvm_leds_init(mvm);
724 	if (ret)
725 		return ret;
726 
727 	if (fw_has_capa(&mvm->fw->ucode_capa,
728 			IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
729 		IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
730 		hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
731 		ieee80211_hw_set(hw, TDLS_WIDER_BW);
732 	}
733 
734 	if (fw_has_capa(&mvm->fw->ucode_capa,
735 			IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
736 		IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
737 		hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
738 	}
739 
740 	hw->netdev_features |= mvm->cfg->features;
741 	if (!iwl_mvm_is_csum_supported(mvm))
742 		hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK;
743 
744 	if (mvm->cfg->vht_mu_mimo_supported)
745 		wiphy_ext_feature_set(hw->wiphy,
746 				      NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
747 
748 	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT))
749 		wiphy_ext_feature_set(hw->wiphy,
750 				      NL80211_EXT_FEATURE_PROTECTED_TWT);
751 
752 	iwl_mvm_vendor_cmds_register(mvm);
753 
754 	hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm);
755 	hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm);
756 
757 	ret = ieee80211_register_hw(mvm->hw);
758 	if (ret) {
759 		iwl_mvm_leds_exit(mvm);
760 	}
761 
762 	return ret;
763 }
764 
iwl_mvm_tx_skb(struct iwl_mvm * mvm,struct sk_buff * skb,struct ieee80211_sta * sta)765 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
766 			   struct ieee80211_sta *sta)
767 {
768 	if (likely(sta)) {
769 		if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0))
770 			return;
771 	} else {
772 		if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0))
773 			return;
774 	}
775 
776 	ieee80211_free_txskb(mvm->hw, skb);
777 }
778 
iwl_mvm_mac_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)779 void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
780 		    struct ieee80211_tx_control *control, struct sk_buff *skb)
781 {
782 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
783 	struct ieee80211_sta *sta = control->sta;
784 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
785 	struct ieee80211_hdr *hdr = (void *)skb->data;
786 	bool offchannel = IEEE80211_SKB_CB(skb)->flags &
787 		IEEE80211_TX_CTL_TX_OFFCHAN;
788 	u32 link_id = u32_get_bits(info->control.flags,
789 				   IEEE80211_TX_CTRL_MLO_LINK);
790 	struct ieee80211_sta *tmp_sta = sta;
791 
792 	if (iwl_mvm_is_radio_killed(mvm)) {
793 		IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
794 		goto drop;
795 	}
796 
797 	if (offchannel &&
798 	    !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
799 	    !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
800 		goto drop;
801 
802 	/*
803 	 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs
804 	 * so we treat the others as broadcast
805 	 */
806 	if (ieee80211_is_mgmt(hdr->frame_control))
807 		sta = NULL;
808 
809 	/* If there is no sta, and it's not offchannel - send through AP */
810 	if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION &&
811 	    !offchannel) {
812 		struct iwl_mvm_vif *mvmvif =
813 			iwl_mvm_vif_from_mac80211(info->control.vif);
814 		u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id);
815 
816 		if (ap_sta_id < mvm->fw->ucode_capa.num_stations) {
817 			/* mac80211 holds rcu read lock */
818 			sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]);
819 			if (IS_ERR_OR_NULL(sta))
820 				goto drop;
821 		}
822 	}
823 
824 	if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED &&
825 	    !ieee80211_is_probe_resp(hdr->frame_control)) {
826 		/* translate MLD addresses to LINK addresses */
827 		struct ieee80211_link_sta *link_sta =
828 			rcu_dereference(tmp_sta->link[link_id]);
829 		struct ieee80211_bss_conf *link_conf =
830 			rcu_dereference(info->control.vif->link_conf[link_id]);
831 		struct ieee80211_mgmt *mgmt;
832 
833 		if (WARN_ON(!link_sta || !link_conf))
834 			goto drop;
835 
836 		/* if sta is NULL, the frame is a management frame */
837 		mgmt = (void *)hdr;
838 		memcpy(mgmt->da, link_sta->addr, ETH_ALEN);
839 		memcpy(mgmt->sa, link_conf->addr, ETH_ALEN);
840 		memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN);
841 	}
842 
843 	iwl_mvm_tx_skb(mvm, skb, sta);
844 	return;
845  drop:
846 	ieee80211_free_txskb(hw, skb);
847 }
848 
iwl_mvm_mac_itxq_xmit(struct ieee80211_hw * hw,struct ieee80211_txq * txq)849 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq)
850 {
851 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
852 	struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
853 	struct sk_buff *skb = NULL;
854 
855 	/*
856 	 * No need for threads to be pending here, they can leave the first
857 	 * taker all the work.
858 	 *
859 	 * mvmtxq->tx_request logic:
860 	 *
861 	 * If 0, no one is currently TXing, set to 1 to indicate current thread
862 	 * will now start TX and other threads should quit.
863 	 *
864 	 * If 1, another thread is currently TXing, set to 2 to indicate to
865 	 * that thread that there was another request. Since that request may
866 	 * have raced with the check whether the queue is empty, the TXing
867 	 * thread should check the queue's status one more time before leaving.
868 	 * This check is done in order to not leave any TX hanging in the queue
869 	 * until the next TX invocation (which may not even happen).
870 	 *
871 	 * If 2, another thread is currently TXing, and it will already double
872 	 * check the queue, so do nothing.
873 	 */
874 	if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2))
875 		return;
876 
877 	rcu_read_lock();
878 	do {
879 		while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL,
880 					&mvmtxq->state) &&
881 			      !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT,
882 					&mvmtxq->state) &&
883 			      !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) {
884 			skb = ieee80211_tx_dequeue(hw, txq);
885 
886 			if (!skb) {
887 				if (txq->sta)
888 					IWL_DEBUG_TX(mvm,
889 						     "TXQ of sta %pM tid %d is now empty\n",
890 						     txq->sta->addr,
891 						     txq->tid);
892 				break;
893 			}
894 
895 			iwl_mvm_tx_skb(mvm, skb, txq->sta);
896 		}
897 	} while (atomic_dec_return(&mvmtxq->tx_request));
898 	rcu_read_unlock();
899 }
900 
iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw * hw,struct ieee80211_txq * txq)901 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw,
902 			       struct ieee80211_txq *txq)
903 {
904 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
905 	struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
906 
907 	if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) ||
908 	    !txq->sta) {
909 		iwl_mvm_mac_itxq_xmit(hw, txq);
910 		return;
911 	}
912 
913 	/* iwl_mvm_mac_itxq_xmit() will later be called by the worker
914 	 * to handle any packets we leave on the txq now
915 	 */
916 
917 	spin_lock_bh(&mvm->add_stream_lock);
918 	/* The list is being deleted only after the queue is fully allocated. */
919 	if (list_empty(&mvmtxq->list) &&
920 	    /* recheck under lock */
921 	    !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) {
922 		list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs);
923 		schedule_work(&mvm->add_stream_wk);
924 	}
925 	spin_unlock_bh(&mvm->add_stream_lock);
926 }
927 
928 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...)		\
929 	do {								\
930 		if (!(le16_to_cpu(_tid_bm) & BIT(_tid)))		\
931 			break;						\
932 		iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt);	\
933 	} while (0)
934 
935 static void
iwl_mvm_ampdu_check_trigger(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid,u16 rx_ba_ssn,enum ieee80211_ampdu_mlme_action action)936 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
937 			    struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
938 			    enum ieee80211_ampdu_mlme_action action)
939 {
940 	struct iwl_fw_dbg_trigger_tlv *trig;
941 	struct iwl_fw_dbg_trigger_ba *ba_trig;
942 
943 	trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
944 				     FW_DBG_TRIGGER_BA);
945 	if (!trig)
946 		return;
947 
948 	ba_trig = (void *)trig->data;
949 
950 	switch (action) {
951 	case IEEE80211_AMPDU_TX_OPERATIONAL: {
952 		struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
953 		struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
954 
955 		CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
956 				 "TX AGG START: MAC %pM tid %d ssn %d\n",
957 				 sta->addr, tid, tid_data->ssn);
958 		break;
959 		}
960 	case IEEE80211_AMPDU_TX_STOP_CONT:
961 		CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
962 				 "TX AGG STOP: MAC %pM tid %d\n",
963 				 sta->addr, tid);
964 		break;
965 	case IEEE80211_AMPDU_RX_START:
966 		CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
967 				 "RX AGG START: MAC %pM tid %d ssn %d\n",
968 				 sta->addr, tid, rx_ba_ssn);
969 		break;
970 	case IEEE80211_AMPDU_RX_STOP:
971 		CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
972 				 "RX AGG STOP: MAC %pM tid %d\n",
973 				 sta->addr, tid);
974 		break;
975 	default:
976 		break;
977 	}
978 }
979 
iwl_mvm_mac_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)980 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
981 			     struct ieee80211_vif *vif,
982 			     struct ieee80211_ampdu_params *params)
983 {
984 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
985 	int ret;
986 	struct ieee80211_sta *sta = params->sta;
987 	enum ieee80211_ampdu_mlme_action action = params->action;
988 	u16 tid = params->tid;
989 	u16 *ssn = &params->ssn;
990 	u16 buf_size = params->buf_size;
991 	bool amsdu = params->amsdu;
992 	u16 timeout = params->timeout;
993 
994 	IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
995 		     sta->addr, tid, action);
996 
997 	if (!(mvm->nvm_data->sku_cap_11n_enable))
998 		return -EACCES;
999 
1000 	mutex_lock(&mvm->mutex);
1001 
1002 	switch (action) {
1003 	case IEEE80211_AMPDU_RX_START:
1004 		if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id ==
1005 		    iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) {
1006 			struct iwl_mvm_vif *mvmvif;
1007 			u16 macid = iwl_mvm_vif_from_mac80211(vif)->id;
1008 			struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid];
1009 
1010 			mdata->opened_rx_ba_sessions = true;
1011 			mvmvif = iwl_mvm_vif_from_mac80211(vif);
1012 			cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk);
1013 		}
1014 		if (!iwl_enable_rx_ampdu()) {
1015 			ret = -EINVAL;
1016 			break;
1017 		}
1018 		ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
1019 					 timeout);
1020 		break;
1021 	case IEEE80211_AMPDU_RX_STOP:
1022 		ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
1023 					 timeout);
1024 		break;
1025 	case IEEE80211_AMPDU_TX_START:
1026 		if (!iwl_enable_tx_ampdu()) {
1027 			ret = -EINVAL;
1028 			break;
1029 		}
1030 		ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
1031 		break;
1032 	case IEEE80211_AMPDU_TX_STOP_CONT:
1033 		ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
1034 		break;
1035 	case IEEE80211_AMPDU_TX_STOP_FLUSH:
1036 	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1037 		ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
1038 		break;
1039 	case IEEE80211_AMPDU_TX_OPERATIONAL:
1040 		ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
1041 					      buf_size, amsdu);
1042 		break;
1043 	default:
1044 		WARN_ON_ONCE(1);
1045 		ret = -EINVAL;
1046 		break;
1047 	}
1048 
1049 	if (!ret) {
1050 		u16 rx_ba_ssn = 0;
1051 
1052 		if (action == IEEE80211_AMPDU_RX_START)
1053 			rx_ba_ssn = *ssn;
1054 
1055 		iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1056 					    rx_ba_ssn, action);
1057 	}
1058 	mutex_unlock(&mvm->mutex);
1059 
1060 	return ret;
1061 }
1062 
iwl_mvm_cleanup_iterator(void * data,u8 * mac,struct ieee80211_vif * vif)1063 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1064 				     struct ieee80211_vif *vif)
1065 {
1066 	struct iwl_mvm *mvm = data;
1067 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1068 	struct iwl_probe_resp_data *probe_data;
1069 	unsigned int link_id;
1070 
1071 	mvmvif->uploaded = false;
1072 
1073 	spin_lock_bh(&mvm->time_event_lock);
1074 	iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1075 	spin_unlock_bh(&mvm->time_event_lock);
1076 
1077 	memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
1078 	mvmvif->ap_sta = NULL;
1079 
1080 	for_each_mvm_vif_valid_link(mvmvif, link_id) {
1081 		mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA;
1082 		mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID;
1083 		mvmvif->link[link_id]->phy_ctxt = NULL;
1084 		mvmvif->link[link_id]->active = 0;
1085 		mvmvif->link[link_id]->igtk = NULL;
1086 	}
1087 
1088 	probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,
1089 					       lockdep_is_held(&mvm->mutex));
1090 	if (probe_data)
1091 		kfree_rcu(probe_data, rcu_head);
1092 	RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);
1093 }
1094 
iwl_mvm_restart_cleanup(struct iwl_mvm * mvm)1095 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1096 {
1097 	iwl_mvm_stop_device(mvm);
1098 
1099 	mvm->cur_aid = 0;
1100 
1101 	mvm->scan_status = 0;
1102 	mvm->ps_disabled = false;
1103 	mvm->rfkill_safe_init_done = false;
1104 
1105 	/* just in case one was running */
1106 	iwl_mvm_cleanup_roc_te(mvm);
1107 	ieee80211_remain_on_channel_expired(mvm->hw);
1108 
1109 	iwl_mvm_ftm_restart(mvm);
1110 
1111 	/*
1112 	 * cleanup all interfaces, even inactive ones, as some might have
1113 	 * gone down during the HW restart
1114 	 */
1115 	ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
1116 
1117 	mvm->p2p_device_vif = NULL;
1118 
1119 	iwl_mvm_reset_phy_ctxts(mvm);
1120 	memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1121 	memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1122 	memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1123 
1124 	ieee80211_wake_queues(mvm->hw);
1125 
1126 	mvm->rx_ba_sessions = 0;
1127 	mvm->fwrt.dump.conf = FW_DBG_INVALID;
1128 	mvm->monitor_on = false;
1129 #ifdef CONFIG_IWLWIFI_DEBUGFS
1130 	mvm->beacon_inject_active = false;
1131 #endif
1132 
1133 	/* keep statistics ticking */
1134 	iwl_mvm_accu_radio_stats(mvm);
1135 }
1136 
__iwl_mvm_mac_start(struct iwl_mvm * mvm)1137 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1138 {
1139 	int ret;
1140 
1141 	lockdep_assert_held(&mvm->mutex);
1142 
1143 	ret = iwl_mvm_mei_get_ownership(mvm);
1144 	if (ret)
1145 		return ret;
1146 
1147 	if (mvm->mei_nvm_data) {
1148 		/* We got the NIC, we can now free the MEI NVM data */
1149 		kfree(mvm->mei_nvm_data);
1150 		mvm->mei_nvm_data = NULL;
1151 
1152 		/*
1153 		 * We can't free the nvm_data we allocated based on the SAP
1154 		 * data because we registered to cfg80211 with the channels
1155 		 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data
1156 		 * just in order to be able free it later.
1157 		 * NULLify nvm_data so that we will read the NVM from the
1158 		 * firmware this time.
1159 		 */
1160 		mvm->temp_nvm_data = mvm->nvm_data;
1161 		mvm->nvm_data = NULL;
1162 	}
1163 
1164 	if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1165 		/*
1166 		 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1167 		 * so later code will - from now on - see that we're doing it.
1168 		 */
1169 		set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1170 		clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1171 		/* Clean up some internal and mac80211 state on restart */
1172 		iwl_mvm_restart_cleanup(mvm);
1173 	}
1174 	ret = iwl_mvm_up(mvm);
1175 
1176 	iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT,
1177 			       NULL);
1178 	iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC,
1179 			       NULL);
1180 
1181 	mvm->last_reset_or_resume_time_jiffies = jiffies;
1182 
1183 	if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1184 		/* Something went wrong - we need to finish some cleanup
1185 		 * that normally iwl_mvm_mac_restart_complete() below
1186 		 * would do.
1187 		 */
1188 		clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1189 	}
1190 
1191 	return ret;
1192 }
1193 
iwl_mvm_mac_start(struct ieee80211_hw * hw)1194 int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1195 {
1196 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1197 	int ret;
1198 	int retry, max_retry = 0;
1199 
1200 	mutex_lock(&mvm->mutex);
1201 
1202 	/* we are starting the mac not in error flow, and restart is enabled */
1203 	if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) &&
1204 	    iwlwifi_mod_params.fw_restart) {
1205 		max_retry = IWL_MAX_INIT_RETRY;
1206 		/*
1207 		 * This will prevent mac80211 recovery flows to trigger during
1208 		 * init failures
1209 		 */
1210 		set_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1211 	}
1212 
1213 	for (retry = 0; retry <= max_retry; retry++) {
1214 		ret = __iwl_mvm_mac_start(mvm);
1215 		if (!ret || mvm->pldr_sync)
1216 			break;
1217 
1218 		IWL_ERR(mvm, "mac start retry %d\n", retry);
1219 	}
1220 	clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1221 
1222 	mutex_unlock(&mvm->mutex);
1223 
1224 	iwl_mvm_mei_set_sw_rfkill_state(mvm);
1225 
1226 	return ret;
1227 }
1228 
iwl_mvm_restart_complete(struct iwl_mvm * mvm)1229 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1230 {
1231 	int ret;
1232 
1233 	mutex_lock(&mvm->mutex);
1234 
1235 	clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1236 
1237 	ret = iwl_mvm_update_quotas(mvm, true, NULL);
1238 	if (ret)
1239 		IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1240 			ret);
1241 
1242 	iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY);
1243 
1244 	/*
1245 	 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1246 	 * of packets the FW sent out, so we must reconnect.
1247 	 */
1248 	iwl_mvm_teardown_tdls_peers(mvm);
1249 
1250 	mutex_unlock(&mvm->mutex);
1251 }
1252 
iwl_mvm_mac_reconfig_complete(struct ieee80211_hw * hw,enum ieee80211_reconfig_type reconfig_type)1253 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1254 				   enum ieee80211_reconfig_type reconfig_type)
1255 {
1256 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1257 
1258 	switch (reconfig_type) {
1259 	case IEEE80211_RECONFIG_TYPE_RESTART:
1260 		iwl_mvm_restart_complete(mvm);
1261 		break;
1262 	case IEEE80211_RECONFIG_TYPE_SUSPEND:
1263 		break;
1264 	}
1265 }
1266 
__iwl_mvm_mac_stop(struct iwl_mvm * mvm)1267 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1268 {
1269 	lockdep_assert_held(&mvm->mutex);
1270 
1271 	iwl_mvm_ftm_initiator_smooth_stop(mvm);
1272 
1273 	/* firmware counters are obviously reset now, but we shouldn't
1274 	 * partially track so also clear the fw_reset_accu counters.
1275 	 */
1276 	memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1277 
1278 	/* async_handlers_wk is now blocked */
1279 
1280 	if (!iwl_mvm_has_new_station_api(mvm->fw))
1281 		iwl_mvm_rm_aux_sta(mvm);
1282 
1283 	iwl_mvm_stop_device(mvm);
1284 
1285 	iwl_mvm_async_handlers_purge(mvm);
1286 	/* async_handlers_list is empty and will stay empty: HW is stopped */
1287 
1288 	/*
1289 	 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the
1290 	 * hw (as restart_complete() won't be called in this case) and mac80211
1291 	 * won't execute the restart.
1292 	 * But make sure to cleanup interfaces that have gone down before/during
1293 	 * HW restart was requested.
1294 	 */
1295 	if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) ||
1296 	    test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1297 			       &mvm->status))
1298 		ieee80211_iterate_interfaces(mvm->hw, 0,
1299 					     iwl_mvm_cleanup_iterator, mvm);
1300 
1301 	/* We shouldn't have any UIDs still set.  Loop over all the UIDs to
1302 	 * make sure there's nothing left there and warn if any is found.
1303 	 */
1304 	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1305 		int i;
1306 
1307 		for (i = 0; i < mvm->max_scans; i++) {
1308 			if (WARN_ONCE(mvm->scan_uid_status[i],
1309 				      "UMAC scan UID %d status was not cleaned\n",
1310 				      i))
1311 				mvm->scan_uid_status[i] = 0;
1312 		}
1313 	}
1314 }
1315 
iwl_mvm_mac_stop(struct ieee80211_hw * hw)1316 void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1317 {
1318 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1319 
1320 	flush_work(&mvm->async_handlers_wk);
1321 	flush_work(&mvm->add_stream_wk);
1322 
1323 	/*
1324 	 * Lock and clear the firmware running bit here already, so that
1325 	 * new commands coming in elsewhere, e.g. from debugfs, will not
1326 	 * be able to proceed. This is important here because one of those
1327 	 * debugfs files causes the firmware dump to be triggered, and if we
1328 	 * don't stop debugfs accesses before canceling that it could be
1329 	 * retriggered after we flush it but before we've cleared the bit.
1330 	 */
1331 	clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1332 
1333 	cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
1334 	cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
1335 
1336 	/*
1337 	 * The work item could be running or queued if the
1338 	 * ROC time event stops just as we get here.
1339 	 */
1340 	flush_work(&mvm->roc_done_wk);
1341 
1342 	iwl_mvm_mei_set_sw_rfkill_state(mvm);
1343 
1344 	mutex_lock(&mvm->mutex);
1345 	__iwl_mvm_mac_stop(mvm);
1346 	mutex_unlock(&mvm->mutex);
1347 
1348 	/*
1349 	 * The worker might have been waiting for the mutex, let it run and
1350 	 * discover that its list is now empty.
1351 	 */
1352 	cancel_work_sync(&mvm->async_handlers_wk);
1353 }
1354 
iwl_mvm_get_free_phy_ctxt(struct iwl_mvm * mvm)1355 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1356 {
1357 	u16 i;
1358 
1359 	lockdep_assert_held(&mvm->mutex);
1360 
1361 	for (i = 0; i < NUM_PHY_CTX; i++)
1362 		if (!mvm->phy_ctxts[i].ref)
1363 			return &mvm->phy_ctxts[i];
1364 
1365 	IWL_ERR(mvm, "No available PHY context\n");
1366 	return NULL;
1367 }
1368 
iwl_mvm_set_tx_power(struct iwl_mvm * mvm,struct ieee80211_vif * vif,s16 tx_power)1369 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1370 			 s16 tx_power)
1371 {
1372 	u32 cmd_id = REDUCE_TX_POWER_CMD;
1373 	int len;
1374 	struct iwl_dev_tx_power_cmd cmd = {
1375 		.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1376 		.common.mac_context_id =
1377 			cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1378 		.common.pwr_restriction = cpu_to_le16(8 * tx_power),
1379 	};
1380 	u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
1381 					   IWL_FW_CMD_VER_UNKNOWN);
1382 
1383 	if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1384 		cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1385 
1386 	if (cmd_ver == 7)
1387 		len = sizeof(cmd.v7);
1388 	else if (cmd_ver == 6)
1389 		len = sizeof(cmd.v6);
1390 	else if (fw_has_api(&mvm->fw->ucode_capa,
1391 			    IWL_UCODE_TLV_API_REDUCE_TX_POWER))
1392 		len = sizeof(cmd.v5);
1393 	else if (fw_has_capa(&mvm->fw->ucode_capa,
1394 			     IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1395 		len = sizeof(cmd.v4);
1396 	else
1397 		len = sizeof(cmd.v3);
1398 
1399 	/* all structs have the same common part, add it */
1400 	len += sizeof(cmd.common);
1401 
1402 	return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd);
1403 }
1404 
iwl_mvm_post_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1405 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
1406 				struct ieee80211_vif *vif,
1407 				struct ieee80211_bss_conf *link_conf)
1408 {
1409 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1410 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1411 	int ret;
1412 
1413 	mutex_lock(&mvm->mutex);
1414 
1415 	if (vif->type == NL80211_IFTYPE_STATION) {
1416 		struct iwl_mvm_sta *mvmsta;
1417 		unsigned int link_id = link_conf->link_id;
1418 		u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id;
1419 
1420 		mvmvif->csa_bcn_pending = false;
1421 		mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id);
1422 
1423 		if (WARN_ON(!mvmsta)) {
1424 			ret = -EIO;
1425 			goto out_unlock;
1426 		}
1427 
1428 		iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
1429 		if (mvm->mld_api_is_used)
1430 			iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false);
1431 		else
1432 			iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1433 
1434 		if (!fw_has_capa(&mvm->fw->ucode_capa,
1435 				 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
1436 			ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1437 			if (ret)
1438 				goto out_unlock;
1439 
1440 			iwl_mvm_stop_session_protection(mvm, vif);
1441 		}
1442 	}
1443 
1444 	mvmvif->ps_disabled = false;
1445 
1446 	ret = iwl_mvm_power_update_ps(mvm);
1447 
1448 out_unlock:
1449 	if (mvmvif->csa_failed)
1450 		ret = -EIO;
1451 	mutex_unlock(&mvm->mutex);
1452 
1453 	return ret;
1454 }
1455 
iwl_mvm_abort_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1456 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw,
1457 				  struct ieee80211_vif *vif)
1458 {
1459 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1460 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1461 	struct iwl_chan_switch_te_cmd cmd = {
1462 		.mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
1463 							  mvmvif->color)),
1464 		.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),
1465 	};
1466 
1467 	/*
1468 	 * In the new flow since FW is in charge of the timing,
1469 	 * if driver has canceled the channel switch he will receive the
1470 	 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it
1471 	 */
1472 	if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
1473 				    CHANNEL_SWITCH_ERROR_NOTIF, 0))
1474 		return;
1475 
1476 	IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id);
1477 
1478 	mutex_lock(&mvm->mutex);
1479 	if (!fw_has_capa(&mvm->fw->ucode_capa,
1480 			 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
1481 		iwl_mvm_remove_csa_period(mvm, vif);
1482 	else
1483 		WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
1484 					     WIDE_ID(MAC_CONF_GROUP,
1485 						     CHANNEL_SWITCH_TIME_EVENT_CMD),
1486 					     0, sizeof(cmd), &cmd));
1487 	mvmvif->csa_failed = true;
1488 	mutex_unlock(&mvm->mutex);
1489 
1490 	/* If we're here, we can't support MLD */
1491 	iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf);
1492 }
1493 
iwl_mvm_channel_switch_disconnect_wk(struct work_struct * wk)1494 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk)
1495 {
1496 	struct iwl_mvm_vif *mvmvif;
1497 	struct ieee80211_vif *vif;
1498 
1499 	mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work);
1500 	vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1501 
1502 	/* Trigger disconnect (should clear the CSA state) */
1503 	ieee80211_chswitch_done(vif, false, 0);
1504 }
1505 
1506 static u8
iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def * chandef)1507 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef)
1508 {
1509 	int data_start;
1510 	int control_start;
1511 	int bw;
1512 
1513 	if (chandef->width == NL80211_CHAN_WIDTH_320)
1514 		bw = 320;
1515 	else if (chandef->width == NL80211_CHAN_WIDTH_160)
1516 		bw = 160;
1517 	else
1518 		return 0;
1519 
1520 	/* data is bw wide so the start is half the width */
1521 	data_start = chandef->center_freq1 - bw / 2;
1522 	/* control is 20Mhz width */
1523 	control_start = chandef->chan->center_freq - 10;
1524 
1525 	return (control_start - data_start) / 80;
1526 }
1527 
iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1528 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm,
1529 					 struct ieee80211_vif *vif)
1530 {
1531 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1532 	int ret;
1533 
1534 	lockdep_assert_held(&mvm->mutex);
1535 
1536 	ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1537 	if (ret) {
1538 		IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1539 		return ret;
1540 	}
1541 
1542 	/* Only queue for this station is the mcast queue,
1543 	 * which shouldn't be in TFD mask anyway
1544 	 */
1545 	return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0,
1546 					vif->type,
1547 					IWL_STA_MULTICAST);
1548 }
1549 
iwl_mvm_mac_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1550 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1551 				     struct ieee80211_vif *vif)
1552 {
1553 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1554 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1555 	int ret;
1556 	int i;
1557 
1558 	mutex_lock(&mvm->mutex);
1559 
1560 	mvmvif->mvm = mvm;
1561 
1562 	/* the first link always points to the default one */
1563 	mvmvif->link[0] = &mvmvif->deflink;
1564 
1565 	/*
1566 	 * Not much to do here. The stack will not allow interface
1567 	 * types or combinations that we didn't advertise, so we
1568 	 * don't really have to check the types.
1569 	 */
1570 
1571 	/* make sure that beacon statistics don't go backwards with FW reset */
1572 	if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1573 		for_each_mvm_vif_valid_link(mvmvif, i)
1574 			mvmvif->link[i]->beacon_stats.accu_num_beacons +=
1575 				mvmvif->link[i]->beacon_stats.num_beacons;
1576 
1577 	/* Allocate resources for the MAC context, and add it to the fw  */
1578 	ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1579 	if (ret)
1580 		goto out;
1581 
1582 	rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif);
1583 
1584 	/* Currently not much to do for NAN */
1585 	if (vif->type == NL80211_IFTYPE_NAN) {
1586 		ret = 0;
1587 		goto out;
1588 	}
1589 
1590 	/*
1591 	 * The AP binding flow can be done only after the beacon
1592 	 * template is configured (which happens only in the mac80211
1593 	 * start_ap() flow), and adding the broadcast station can happen
1594 	 * only after the binding.
1595 	 * In addition, since modifying the MAC before adding a bcast
1596 	 * station is not allowed by the FW, delay the adding of MAC context to
1597 	 * the point where we can also add the bcast station.
1598 	 * In short: there's not much we can do at this point, other than
1599 	 * allocating resources :)
1600 	 */
1601 	if (vif->type == NL80211_IFTYPE_AP ||
1602 	    vif->type == NL80211_IFTYPE_ADHOC) {
1603 		if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1604 			iwl_mvm_vif_dbgfs_add_link(mvm, vif);
1605 		ret = 0;
1606 		goto out;
1607 	}
1608 
1609 	mvmvif->features |= hw->netdev_features;
1610 
1611 	ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1612 	if (ret)
1613 		goto out_unlock;
1614 
1615 	ret = iwl_mvm_power_update_mac(mvm);
1616 	if (ret)
1617 		goto out_remove_mac;
1618 
1619 	/* beacon filtering */
1620 	ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1621 	if (ret)
1622 		goto out_remove_mac;
1623 
1624 	if (!mvm->bf_allowed_vif &&
1625 	    vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1626 		mvm->bf_allowed_vif = mvmvif;
1627 		vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1628 				     IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1629 	}
1630 
1631 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
1632 		mvm->p2p_device_vif = vif;
1633 
1634 	iwl_mvm_tcm_add_vif(mvm, vif);
1635 	INIT_DELAYED_WORK(&mvmvif->csa_work,
1636 			  iwl_mvm_channel_switch_disconnect_wk);
1637 
1638 	if (vif->type == NL80211_IFTYPE_MONITOR) {
1639 		mvm->monitor_on = true;
1640 		mvm->monitor_p80 =
1641 			iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef);
1642 	}
1643 
1644 	if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1645 		iwl_mvm_vif_dbgfs_add_link(mvm, vif);
1646 
1647 	if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
1648 	    vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1649 	    !mvm->csme_vif && mvm->mei_registered) {
1650 		iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr);
1651 		iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev);
1652 		mvm->csme_vif = vif;
1653 	}
1654 
1655 out:
1656 	if (!ret && (vif->type == NL80211_IFTYPE_AP ||
1657 		     vif->type == NL80211_IFTYPE_ADHOC))
1658 		ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif);
1659 
1660 	goto out_unlock;
1661 
1662  out_remove_mac:
1663 	mvmvif->deflink.phy_ctxt = NULL;
1664 	iwl_mvm_mac_ctxt_remove(mvm, vif);
1665  out_unlock:
1666 	mutex_unlock(&mvm->mutex);
1667 
1668 	return ret;
1669 }
1670 
iwl_mvm_prepare_mac_removal(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1671 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1672 				 struct ieee80211_vif *vif)
1673 {
1674 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1675 		/*
1676 		 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1677 		 * We assume here that all the packets sent to the OFFCHANNEL
1678 		 * queue are sent in ROC session.
1679 		 */
1680 		flush_work(&mvm->roc_done_wk);
1681 	}
1682 }
1683 
1684 /* This function is doing the common part of removing the interface for
1685  * both - MLD and non-MLD modes. Returns true if removing the interface
1686  * is done
1687  */
iwl_mvm_mac_remove_interface_common(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1688 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw,
1689 						struct ieee80211_vif *vif)
1690 {
1691 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1692 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1693 	struct iwl_probe_resp_data *probe_data;
1694 
1695 	iwl_mvm_prepare_mac_removal(mvm, vif);
1696 
1697 	if (!(vif->type == NL80211_IFTYPE_AP ||
1698 	      vif->type == NL80211_IFTYPE_ADHOC))
1699 		iwl_mvm_tcm_rm_vif(mvm, vif);
1700 
1701 	mutex_lock(&mvm->mutex);
1702 
1703 	if (vif == mvm->csme_vif) {
1704 		iwl_mei_set_netdev(NULL);
1705 		mvm->csme_vif = NULL;
1706 	}
1707 
1708 	probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,
1709 					       lockdep_is_held(&mvm->mutex));
1710 	RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);
1711 	if (probe_data)
1712 		kfree_rcu(probe_data, rcu_head);
1713 
1714 	if (mvm->bf_allowed_vif == mvmvif) {
1715 		mvm->bf_allowed_vif = NULL;
1716 		vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1717 				       IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1718 	}
1719 
1720 	if (vif->bss_conf.ftm_responder)
1721 		memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats));
1722 
1723 	iwl_mvm_vif_dbgfs_rm_link(mvm, vif);
1724 
1725 	/*
1726 	 * For AP/GO interface, the tear down of the resources allocated to the
1727 	 * interface is be handled as part of the stop_ap flow.
1728 	 */
1729 	if (vif->type == NL80211_IFTYPE_AP ||
1730 	    vif->type == NL80211_IFTYPE_ADHOC) {
1731 #ifdef CONFIG_NL80211_TESTMODE
1732 		if (vif == mvm->noa_vif) {
1733 			mvm->noa_vif = NULL;
1734 			mvm->noa_duration = 0;
1735 		}
1736 #endif
1737 		return true;
1738 	}
1739 
1740 	iwl_mvm_power_update_mac(mvm);
1741 	return false;
1742 }
1743 
iwl_mvm_mac_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1744 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1745 					 struct ieee80211_vif *vif)
1746 {
1747 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1748 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1749 
1750 	if (iwl_mvm_mac_remove_interface_common(hw, vif))
1751 		goto out;
1752 
1753 	/* Before the interface removal, mac80211 would cancel the ROC, and the
1754 	 * ROC worker would be scheduled if needed. The worker would be flushed
1755 	 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no
1756 	 * binding etc. so nothing needs to be done here.
1757 	 */
1758 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1759 		if (mvmvif->deflink.phy_ctxt) {
1760 			iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);
1761 			mvmvif->deflink.phy_ctxt = NULL;
1762 		}
1763 		mvm->p2p_device_vif = NULL;
1764 	}
1765 
1766 	iwl_mvm_mac_ctxt_remove(mvm, vif);
1767 
1768 	RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL);
1769 
1770 	if (vif->type == NL80211_IFTYPE_MONITOR)
1771 		mvm->monitor_on = false;
1772 
1773 out:
1774 	if (vif->type == NL80211_IFTYPE_AP ||
1775 	    vif->type == NL80211_IFTYPE_ADHOC) {
1776 		iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta);
1777 		iwl_mvm_dealloc_bcast_sta(mvm, vif);
1778 	}
1779 
1780 	mutex_unlock(&mvm->mutex);
1781 }
1782 
1783 struct iwl_mvm_mc_iter_data {
1784 	struct iwl_mvm *mvm;
1785 	int port_id;
1786 };
1787 
iwl_mvm_mc_iface_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)1788 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1789 				      struct ieee80211_vif *vif)
1790 {
1791 	struct iwl_mvm_mc_iter_data *data = _data;
1792 	struct iwl_mvm *mvm = data->mvm;
1793 	struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1794 	struct iwl_host_cmd hcmd = {
1795 		.id = MCAST_FILTER_CMD,
1796 		.flags = CMD_ASYNC,
1797 		.dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1798 	};
1799 	int ret, len;
1800 
1801 	/* if we don't have free ports, mcast frames will be dropped */
1802 	if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1803 		return;
1804 
1805 	if (vif->type != NL80211_IFTYPE_STATION ||
1806 	    !vif->cfg.assoc)
1807 		return;
1808 
1809 	cmd->port_id = data->port_id++;
1810 	memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1811 	len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1812 
1813 	hcmd.len[0] = len;
1814 	hcmd.data[0] = cmd;
1815 
1816 	ret = iwl_mvm_send_cmd(mvm, &hcmd);
1817 	if (ret)
1818 		IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1819 }
1820 
iwl_mvm_recalc_multicast(struct iwl_mvm * mvm)1821 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1822 {
1823 	struct iwl_mvm_mc_iter_data iter_data = {
1824 		.mvm = mvm,
1825 	};
1826 	int ret;
1827 
1828 	lockdep_assert_held(&mvm->mutex);
1829 
1830 	if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1831 		return;
1832 
1833 	ieee80211_iterate_active_interfaces_atomic(
1834 		mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1835 		iwl_mvm_mc_iface_iterator, &iter_data);
1836 
1837 	/*
1838 	 * Send a (synchronous) ech command so that we wait for the
1839 	 * multiple asynchronous MCAST_FILTER_CMD commands sent by
1840 	 * the interface iterator. Otherwise, we might get here over
1841 	 * and over again (by userspace just sending a lot of these)
1842 	 * and the CPU can send them faster than the firmware can
1843 	 * process them.
1844 	 * Note that the CPU is still faster - but with this we'll
1845 	 * actually send fewer commands overall because the CPU will
1846 	 * not schedule the work in mac80211 as frequently if it's
1847 	 * still running when rescheduled (possibly multiple times).
1848 	 */
1849 	ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1850 	if (ret)
1851 		IWL_ERR(mvm, "Failed to synchronize multicast groups update\n");
1852 }
1853 
iwl_mvm_prepare_multicast(struct ieee80211_hw * hw,struct netdev_hw_addr_list * mc_list)1854 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1855 			      struct netdev_hw_addr_list *mc_list)
1856 {
1857 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1858 	struct iwl_mcast_filter_cmd *cmd;
1859 	struct netdev_hw_addr *addr;
1860 	int addr_count;
1861 	bool pass_all;
1862 	int len;
1863 
1864 	addr_count = netdev_hw_addr_list_count(mc_list);
1865 	pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1866 		   IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1867 	if (pass_all)
1868 		addr_count = 0;
1869 
1870 	len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1871 	cmd = kzalloc(len, GFP_ATOMIC);
1872 	if (!cmd)
1873 		return 0;
1874 
1875 	if (pass_all) {
1876 		cmd->pass_all = 1;
1877 		return (u64)(unsigned long)cmd;
1878 	}
1879 
1880 	netdev_hw_addr_list_for_each(addr, mc_list) {
1881 		IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1882 				   cmd->count, addr->addr);
1883 		memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1884 		       addr->addr, ETH_ALEN);
1885 		cmd->count++;
1886 	}
1887 
1888 	return (u64)(unsigned long)cmd;
1889 }
1890 
iwl_mvm_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)1891 void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1892 			      unsigned int changed_flags,
1893 			      unsigned int *total_flags, u64 multicast)
1894 {
1895 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1896 	struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1897 
1898 	mutex_lock(&mvm->mutex);
1899 
1900 	/* replace previous configuration */
1901 	kfree(mvm->mcast_filter_cmd);
1902 	mvm->mcast_filter_cmd = cmd;
1903 
1904 	if (!cmd)
1905 		goto out;
1906 
1907 	if (changed_flags & FIF_ALLMULTI)
1908 		cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
1909 
1910 	if (cmd->pass_all)
1911 		cmd->count = 0;
1912 
1913 	iwl_mvm_recalc_multicast(mvm);
1914 out:
1915 	mutex_unlock(&mvm->mutex);
1916 	*total_flags = 0;
1917 }
1918 
iwl_mvm_config_iface_filter(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int filter_flags,unsigned int changed_flags)1919 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1920 					struct ieee80211_vif *vif,
1921 					unsigned int filter_flags,
1922 					unsigned int changed_flags)
1923 {
1924 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1925 
1926 	/* We support only filter for probe requests */
1927 	if (!(changed_flags & FIF_PROBE_REQ))
1928 		return;
1929 
1930 	/* Supported only for p2p client interfaces */
1931 	if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc ||
1932 	    !vif->p2p)
1933 		return;
1934 
1935 	mutex_lock(&mvm->mutex);
1936 	iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1937 	mutex_unlock(&mvm->mutex);
1938 }
1939 
iwl_mvm_update_mu_groups(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1940 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1941 {
1942 	struct iwl_mu_group_mgmt_cmd cmd = {};
1943 
1944 	memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1945 	       WLAN_MEMBERSHIP_LEN);
1946 	memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1947 	       WLAN_USER_POSITION_LEN);
1948 
1949 	return iwl_mvm_send_cmd_pdu(mvm,
1950 				    WIDE_ID(DATA_PATH_GROUP,
1951 					    UPDATE_MU_GROUPS_CMD),
1952 				    0, sizeof(cmd), &cmd);
1953 }
1954 
iwl_mvm_mu_mimo_iface_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)1955 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1956 					   struct ieee80211_vif *vif)
1957 {
1958 	if (vif->bss_conf.mu_mimo_owner) {
1959 		struct iwl_mu_group_mgmt_notif *notif = _data;
1960 
1961 		/*
1962 		 * MU-MIMO Group Id action frame is little endian. We treat
1963 		 * the data received from firmware as if it came from the
1964 		 * action frame, so no conversion is needed.
1965 		 */
1966 		ieee80211_update_mu_groups(vif, 0,
1967 					   (u8 *)&notif->membership_status,
1968 					   (u8 *)&notif->user_position);
1969 	}
1970 }
1971 
iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)1972 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1973 			       struct iwl_rx_cmd_buffer *rxb)
1974 {
1975 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
1976 	struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1977 
1978 	ieee80211_iterate_active_interfaces_atomic(
1979 			mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1980 			iwl_mvm_mu_mimo_iface_iterator, notif);
1981 }
1982 
iwl_mvm_he_get_ppe_val(u8 * ppe,u8 ppe_pos_bit)1983 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit)
1984 {
1985 	u8 byte_num = ppe_pos_bit / 8;
1986 	u8 bit_num = ppe_pos_bit % 8;
1987 	u8 residue_bits;
1988 	u8 res;
1989 
1990 	if (bit_num <= 5)
1991 		return (ppe[byte_num] >> bit_num) &
1992 		       (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1);
1993 
1994 	/*
1995 	 * If bit_num > 5, we have to combine bits with next byte.
1996 	 * Calculate how many bits we need to take from current byte (called
1997 	 * here "residue_bits"), and add them to bits from next byte.
1998 	 */
1999 
2000 	residue_bits = 8 - bit_num;
2001 
2002 	res = (ppe[byte_num + 1] &
2003 	       (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) <<
2004 	      residue_bits;
2005 	res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1);
2006 
2007 	return res;
2008 }
2009 
iwl_mvm_parse_ppe(struct iwl_mvm * mvm,struct iwl_he_pkt_ext_v2 * pkt_ext,u8 nss,u8 ru_index_bitmap,u8 * ppe,u8 ppe_pos_bit,bool inheritance)2010 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm,
2011 			      struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss,
2012 			      u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit,
2013 			      bool inheritance)
2014 {
2015 	int i;
2016 
2017 	/*
2018 	* FW currently supports only nss == MAX_HE_SUPP_NSS
2019 	*
2020 	* If nss > MAX: we can ignore values we don't support
2021 	* If nss < MAX: we can set zeros in other streams
2022 	*/
2023 	if (nss > MAX_HE_SUPP_NSS) {
2024 		IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,
2025 			       MAX_HE_SUPP_NSS);
2026 		nss = MAX_HE_SUPP_NSS;
2027 	}
2028 
2029 	for (i = 0; i < nss; i++) {
2030 		u8 ru_index_tmp = ru_index_bitmap << 1;
2031 		u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE;
2032 		u8 bw;
2033 
2034 		for (bw = 0;
2035 		     bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2036 		     bw++) {
2037 			ru_index_tmp >>= 1;
2038 
2039 			/*
2040 			* According to the 11be spec, if for a specific BW the PPE Thresholds
2041 			* isn't present - it should inherit the thresholds from the last
2042 			* BW for which we had PPE Thresholds. In 11ax though, we don't have
2043 			* this inheritance - continue in this case
2044 			*/
2045 			if (!(ru_index_tmp & 1)) {
2046 				if (inheritance)
2047 					goto set_thresholds;
2048 				else
2049 					continue;
2050 			}
2051 
2052 			high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
2053 			ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2054 			low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
2055 			ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2056 
2057 set_thresholds:
2058 			pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
2059 			pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
2060 		}
2061 	}
2062 }
2063 
iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm * mvm,struct ieee80211_link_sta * link_sta,struct iwl_he_pkt_ext_v2 * pkt_ext,bool inheritance)2064 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm,
2065 					    struct ieee80211_link_sta *link_sta,
2066 					    struct iwl_he_pkt_ext_v2 *pkt_ext,
2067 					    bool inheritance)
2068 {
2069 	u8 nss = (link_sta->he_cap.ppe_thres[0] &
2070 		  IEEE80211_PPE_THRES_NSS_MASK) + 1;
2071 	u8 *ppe = &link_sta->he_cap.ppe_thres[0];
2072 	u8 ru_index_bitmap =
2073 		u8_get_bits(*ppe,
2074 			    IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
2075 	/* Starting after PPE header */
2076 	u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE;
2077 
2078 	iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit,
2079 			  inheritance);
2080 }
2081 
2082 static int
iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 * pkt_ext,u8 nominal_padding)2083 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext,
2084 					 u8 nominal_padding)
2085 {
2086 	int low_th = -1;
2087 	int high_th = -1;
2088 	int i;
2089 
2090 	/* all the macros are the same for EHT and HE */
2091 	switch (nominal_padding) {
2092 	case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US:
2093 		low_th = IWL_HE_PKT_EXT_NONE;
2094 		high_th = IWL_HE_PKT_EXT_NONE;
2095 		break;
2096 	case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US:
2097 		low_th = IWL_HE_PKT_EXT_BPSK;
2098 		high_th = IWL_HE_PKT_EXT_NONE;
2099 		break;
2100 	case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US:
2101 	case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US:
2102 		low_th = IWL_HE_PKT_EXT_NONE;
2103 		high_th = IWL_HE_PKT_EXT_BPSK;
2104 		break;
2105 	}
2106 
2107 	if (low_th < 0 || high_th < 0)
2108 		return -EINVAL;
2109 
2110 	/* Set the PPE thresholds accordingly */
2111 	for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2112 		u8 bw;
2113 
2114 		for (bw = 0;
2115 			bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2116 			bw++) {
2117 			pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
2118 			pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
2119 		}
2120 	}
2121 
2122 	return 0;
2123 }
2124 
iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 * pkt_ext,u8 nominal_padding)2125 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext,
2126 					 u8 nominal_padding)
2127 {
2128 	int i;
2129 
2130 	for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2131 		u8 bw;
2132 
2133 		for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2134 		     bw++) {
2135 			u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0];
2136 
2137 			if (nominal_padding >
2138 			    IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&
2139 			    qam_th[1] == IWL_HE_PKT_EXT_NONE)
2140 				qam_th[1] = IWL_HE_PKT_EXT_4096QAM;
2141 			else if (nominal_padding ==
2142 				 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&
2143 				 qam_th[0] == IWL_HE_PKT_EXT_NONE &&
2144 				 qam_th[1] == IWL_HE_PKT_EXT_NONE)
2145 				qam_th[0] = IWL_HE_PKT_EXT_4096QAM;
2146 		}
2147 	}
2148 }
2149 
2150 /* Set the pkt_ext field according to PPE Thresholds element */
iwl_mvm_set_sta_pkt_ext(struct iwl_mvm * mvm,struct ieee80211_link_sta * link_sta,struct iwl_he_pkt_ext_v2 * pkt_ext)2151 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm,
2152 			    struct ieee80211_link_sta *link_sta,
2153 			    struct iwl_he_pkt_ext_v2 *pkt_ext)
2154 {
2155 	u8 nominal_padding;
2156 	int i, ret = 0;
2157 
2158 	if (WARN_ON(!link_sta))
2159 		return -EINVAL;
2160 
2161 	/* Initialize the PPE thresholds to "None" (7), as described in Table
2162 	 * 9-262ac of 80211.ax/D3.0.
2163 	 */
2164 	memset(pkt_ext, IWL_HE_PKT_EXT_NONE,
2165 	       sizeof(struct iwl_he_pkt_ext_v2));
2166 
2167 	if (link_sta->eht_cap.has_eht) {
2168 		nominal_padding =
2169 			u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5],
2170 				    IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK);
2171 
2172 		/* If PPE Thresholds exists, parse them into a FW-familiar
2173 		 * format.
2174 		 */
2175 		if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] &
2176 		    IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
2177 			u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] &
2178 				IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1;
2179 			u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0];
2180 			u8 ru_index_bitmap =
2181 				u16_get_bits(*ppe,
2182 					     IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);
2183 			 /* Starting after PPE header */
2184 			u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;
2185 
2186 			iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap,
2187 					  ppe, ppe_pos_bit, true);
2188 		/* EHT PPE Thresholds doesn't exist - set the API according to
2189 		 * HE PPE Tresholds
2190 		 */
2191 		} else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &
2192 			   IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2193 			/* Even though HE Capabilities IE doesn't contain PPE
2194 			 * Thresholds for BW 320Mhz, thresholds for this BW will
2195 			 * be filled in with the same values as 160Mhz, due to
2196 			 * the inheritance, as required.
2197 			 */
2198 			iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,
2199 							true);
2200 
2201 			/* According to the requirements, for MCSs 12-13 the
2202 			 * maximum value between HE PPE Threshold and Common
2203 			 * Nominal Packet Padding needs to be taken
2204 			 */
2205 			iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding);
2206 
2207 		/* if PPE Thresholds doesn't present in both EHT IE and HE IE -
2208 		 * take the Thresholds from Common Nominal Packet Padding field
2209 		 */
2210 		} else {
2211 			ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,
2212 								       nominal_padding);
2213 		}
2214 	} else if (link_sta->he_cap.has_he) {
2215 		/* If PPE Thresholds exist, parse them into a FW-familiar format. */
2216 		if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &
2217 			IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2218 			iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,
2219 							false);
2220 		/* PPE Thresholds doesn't exist - set the API PPE values
2221 		 * according to Common Nominal Packet Padding field.
2222 		 */
2223 		} else {
2224 			nominal_padding =
2225 				u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9],
2226 					    IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK);
2227 			if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED)
2228 				ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,
2229 									       nominal_padding);
2230 		}
2231 	}
2232 
2233 	for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2234 		int bw;
2235 
2236 		for (bw = 0;
2237 		     bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]);
2238 		     bw++) {
2239 			u8 *qam_th =
2240 				&pkt_ext->pkt_ext_qam_th[i][bw][0];
2241 
2242 			IWL_DEBUG_HT(mvm,
2243 				     "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n",
2244 				     i, bw, qam_th[0], qam_th[1]);
2245 		}
2246 	}
2247 	return ret;
2248 }
2249 
2250 /*
2251  * This function sets the MU EDCA parameters ans returns whether MU EDCA
2252  * is enabled or not
2253  */
iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm * mvm,const struct iwl_mvm_vif_link_info * link_info,struct iwl_he_backoff_conf * trig_based_txf)2254 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm,
2255 				   const struct iwl_mvm_vif_link_info *link_info,
2256 				   struct iwl_he_backoff_conf *trig_based_txf)
2257 {
2258 	int i;
2259 	/* Mark MU EDCA as enabled, unless none detected on some AC */
2260 	bool mu_edca_enabled = true;
2261 
2262 	for (i = 0; i < IEEE80211_NUM_ACS; i++) {
2263 		const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca =
2264 			&link_info->queue_params[i].mu_edca_param_rec;
2265 		u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i);
2266 
2267 		if (!link_info->queue_params[i].mu_edca) {
2268 			mu_edca_enabled = false;
2269 			break;
2270 		}
2271 
2272 		trig_based_txf[ac].cwmin =
2273 			cpu_to_le16(mu_edca->ecw_min_max & 0xf);
2274 		trig_based_txf[ac].cwmax =
2275 			cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4);
2276 		trig_based_txf[ac].aifsn =
2277 			cpu_to_le16(mu_edca->aifsn & 0xf);
2278 		trig_based_txf[ac].mu_time =
2279 			cpu_to_le16(mu_edca->mu_edca_timer);
2280 	}
2281 
2282 	return mu_edca_enabled;
2283 }
2284 
iwl_mvm_is_nic_ack_enabled(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2285 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2286 {
2287 	const struct ieee80211_supported_band *sband;
2288 	const struct ieee80211_sta_he_cap *own_he_cap = NULL;
2289 
2290 	/* This capability is the same for all bands,
2291 	 * so take it from one of them.
2292 	 */
2293 	sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
2294 	own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
2295 
2296 	return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] &
2297 			       IEEE80211_HE_MAC_CAP2_ACK_EN));
2298 }
2299 
iwl_mvm_get_sta_htc_flags(struct ieee80211_sta * sta,struct ieee80211_link_sta * link_sta)2300 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta,
2301 				 struct ieee80211_link_sta *link_sta)
2302 {
2303 	u8 *mac_cap_info =
2304 		&link_sta->he_cap.he_cap_elem.mac_cap_info[0];
2305 	__le32 htc_flags = 0;
2306 
2307 	if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE)
2308 		htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT);
2309 	if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) ||
2310 	    (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) {
2311 		u8 link_adap =
2312 			((mac_cap_info[2] &
2313 			  IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) +
2314 			 (mac_cap_info[1] &
2315 			  IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION);
2316 
2317 		if (link_adap == 2)
2318 			htc_flags |=
2319 				cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED);
2320 		else if (link_adap == 3)
2321 			htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH);
2322 	}
2323 	if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR)
2324 		htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP);
2325 	if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL)
2326 		htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP);
2327 	if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR)
2328 		htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP);
2329 
2330 	return htc_flags;
2331 }
2332 
iwl_mvm_cfg_he_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u8 sta_id)2333 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm,
2334 			       struct ieee80211_vif *vif, u8 sta_id)
2335 {
2336 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2337 	struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = {
2338 		.sta_id = sta_id,
2339 		.tid_limit = IWL_MAX_TID_COUNT,
2340 		.bss_color = vif->bss_conf.he_bss_color.color,
2341 		.htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext,
2342 		.frame_time_rts_th =
2343 			cpu_to_le16(vif->bss_conf.frame_time_rts_th),
2344 	};
2345 	struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {};
2346 	u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD);
2347 	u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2);
2348 	int size;
2349 	struct ieee80211_sta *sta;
2350 	u32 flags;
2351 	int i;
2352 	void *cmd;
2353 
2354 	if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE))
2355 		ver = 1;
2356 
2357 	switch (ver) {
2358 	case 1:
2359 		/* same layout as v2 except some data at the end */
2360 		cmd = &sta_ctxt_cmd_v2;
2361 		size = sizeof(struct iwl_he_sta_context_cmd_v1);
2362 		break;
2363 	case 2:
2364 		cmd = &sta_ctxt_cmd_v2;
2365 		size = sizeof(struct iwl_he_sta_context_cmd_v2);
2366 		break;
2367 	case 3:
2368 		cmd = &sta_ctxt_cmd;
2369 		size = sizeof(struct iwl_he_sta_context_cmd_v3);
2370 		break;
2371 	default:
2372 		IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver);
2373 		return;
2374 	}
2375 
2376 	rcu_read_lock();
2377 
2378 	sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]);
2379 	if (IS_ERR_OR_NULL(sta)) {
2380 		rcu_read_unlock();
2381 		WARN(1, "Can't find STA to configure HE\n");
2382 		return;
2383 	}
2384 
2385 	if (!sta->deflink.he_cap.has_he) {
2386 		rcu_read_unlock();
2387 		return;
2388 	}
2389 
2390 	flags = 0;
2391 
2392 	/* Block 26-tone RU OFDMA transmissions */
2393 	if (mvmvif->deflink.he_ru_2mhz_block)
2394 		flags |= STA_CTXT_HE_RU_2MHZ_BLOCK;
2395 
2396 	/* HTC flags */
2397 	sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink);
2398 
2399 	/* PPE Thresholds */
2400 	if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext))
2401 		flags |= STA_CTXT_HE_PACKET_EXT;
2402 
2403 	if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2404 	    IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP)
2405 		flags |= STA_CTXT_HE_32BIT_BA_BITMAP;
2406 
2407 	if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2408 	    IEEE80211_HE_MAC_CAP2_ACK_EN)
2409 		flags |= STA_CTXT_HE_ACK_ENABLED;
2410 
2411 	rcu_read_unlock();
2412 
2413 	if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink,
2414 					  &sta_ctxt_cmd.trig_based_txf[0]))
2415 		flags |= STA_CTXT_HE_MU_EDCA_CW;
2416 
2417 	if (vif->bss_conf.uora_exists) {
2418 		flags |= STA_CTXT_HE_TRIG_RND_ALLOC;
2419 
2420 		sta_ctxt_cmd.rand_alloc_ecwmin =
2421 			vif->bss_conf.uora_ocw_range & 0x7;
2422 		sta_ctxt_cmd.rand_alloc_ecwmax =
2423 			(vif->bss_conf.uora_ocw_range >> 3) & 0x7;
2424 	}
2425 
2426 	if (!iwl_mvm_is_nic_ack_enabled(mvm, vif))
2427 		flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED;
2428 
2429 	if (vif->bss_conf.nontransmitted) {
2430 		flags |= STA_CTXT_HE_REF_BSSID_VALID;
2431 		ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr,
2432 				vif->bss_conf.transmitter_bssid);
2433 		sta_ctxt_cmd.max_bssid_indicator =
2434 			vif->bss_conf.bssid_indicator;
2435 		sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index;
2436 		sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap;
2437 		sta_ctxt_cmd.profile_periodicity =
2438 			vif->bss_conf.profile_periodicity;
2439 	}
2440 
2441 	sta_ctxt_cmd.flags = cpu_to_le32(flags);
2442 
2443 	if (ver < 3) {
2444 		/* fields before pkt_ext */
2445 		BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) !=
2446 			     offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext));
2447 		memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd,
2448 		       offsetof(typeof(sta_ctxt_cmd), pkt_ext));
2449 
2450 		/* pkt_ext */
2451 		for (i = 0;
2452 		     i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th);
2453 		     i++) {
2454 			u8 bw;
2455 
2456 			for (bw = 0;
2457 			     bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]);
2458 			     bw++) {
2459 				BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) !=
2460 					     sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw]));
2461 
2462 				memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw],
2463 				       &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw],
2464 				       sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]));
2465 			}
2466 		}
2467 
2468 		/* fields after pkt_ext */
2469 		BUILD_BUG_ON(sizeof(sta_ctxt_cmd) -
2470 			     offsetofend(typeof(sta_ctxt_cmd), pkt_ext) !=
2471 			     sizeof(sta_ctxt_cmd_v2) -
2472 			     offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext));
2473 		memcpy((u8 *)&sta_ctxt_cmd_v2 +
2474 				offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext),
2475 		       (u8 *)&sta_ctxt_cmd +
2476 				offsetofend(typeof(sta_ctxt_cmd), pkt_ext),
2477 		       sizeof(sta_ctxt_cmd) -
2478 				offsetofend(typeof(sta_ctxt_cmd), pkt_ext));
2479 		sta_ctxt_cmd_v2.reserved3 = 0;
2480 	}
2481 
2482 	if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd))
2483 		IWL_ERR(mvm, "Failed to config FW to work HE!\n");
2484 }
2485 
iwl_mvm_protect_assoc(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u32 duration_override,unsigned int link_id)2486 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2487 			   u32 duration_override, unsigned int link_id)
2488 {
2489 	u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2490 	u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
2491 
2492 	if (duration_override > duration)
2493 		duration = duration_override;
2494 
2495 	/* Try really hard to protect the session and hear a beacon
2496 	 * The new session protection command allows us to protect the
2497 	 * session for a much longer time since the firmware will internally
2498 	 * create two events: a 300TU one with a very high priority that
2499 	 * won't be fragmented which should be enough for 99% of the cases,
2500 	 * and another one (which we configure here to be 900TU long) which
2501 	 * will have a slightly lower priority, but more importantly, can be
2502 	 * fragmented so that it'll allow other activities to run.
2503 	 */
2504 	if (fw_has_capa(&mvm->fw->ucode_capa,
2505 			IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD))
2506 		iwl_mvm_schedule_session_protection(mvm, vif, 900,
2507 						    min_duration, false,
2508 						    link_id);
2509 	else
2510 		iwl_mvm_protect_session(mvm, vif, duration,
2511 					min_duration, 500, false);
2512 }
2513 
2514 /* Handle association common part to MLD and non-MLD modes */
iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u64 changes)2515 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm,
2516 					    struct ieee80211_vif *vif,
2517 					    u64 changes)
2518 {
2519 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2520 	int ret;
2521 
2522 	/* The firmware tracks the MU-MIMO group on its own.
2523 	 * However, on HW restart we should restore this data.
2524 	 */
2525 	if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2526 	    (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) {
2527 		ret = iwl_mvm_update_mu_groups(mvm, vif);
2528 		if (ret)
2529 			IWL_ERR(mvm,
2530 				"failed to update VHT MU_MIMO groups\n");
2531 	}
2532 
2533 	iwl_mvm_recalc_multicast(mvm);
2534 
2535 	/* reset rssi values */
2536 	mvmvif->bf_data.ave_beacon_signal = 0;
2537 
2538 	iwl_mvm_bt_coex_vif_change(mvm);
2539 	iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2540 					    IEEE80211_SMPS_AUTOMATIC);
2541 	if (fw_has_capa(&mvm->fw->ucode_capa,
2542 			IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2543 		iwl_mvm_config_scan(mvm);
2544 }
2545 
2546 /* Execute the common part for MLD and non-MLD modes */
2547 void
iwl_mvm_bss_info_changed_station_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,u64 changes)2548 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm,
2549 					struct ieee80211_vif *vif,
2550 					struct ieee80211_bss_conf *link_conf,
2551 					u64 changes)
2552 {
2553 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2554 	int ret;
2555 
2556 	if (changes & BSS_CHANGED_BEACON_INFO) {
2557 		/* We received a beacon from the associated AP so
2558 		 * remove the session protection.
2559 		 */
2560 		iwl_mvm_stop_session_protection(mvm, vif);
2561 
2562 		iwl_mvm_sf_update(mvm, vif, false);
2563 		WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2564 	}
2565 
2566 	if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2567 		       /* Send power command on every beacon change,
2568 			* because we may have not enabled beacon abort yet.
2569 			*/
2570 		       BSS_CHANGED_BEACON_INFO)) {
2571 		ret = iwl_mvm_power_update_mac(mvm);
2572 		if (ret)
2573 			IWL_ERR(mvm, "failed to update power mode\n");
2574 	}
2575 
2576 	if (changes & BSS_CHANGED_CQM) {
2577 		IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
2578 		/* reset cqm events tracking */
2579 		mvmvif->bf_data.last_cqm_event = 0;
2580 		if (mvmvif->bf_data.bf_enabled) {
2581 			/* FIXME: need to update per link when FW API will
2582 			 * support it
2583 			 */
2584 			ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2585 			if (ret)
2586 				IWL_ERR(mvm,
2587 					"failed to update CQM thresholds\n");
2588 		}
2589 	}
2590 
2591 	if (changes & BSS_CHANGED_BANDWIDTH)
2592 		iwl_mvm_update_link_smps(vif, link_conf);
2593 }
2594 
iwl_mvm_bss_info_changed_station(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf,u64 changes)2595 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2596 					     struct ieee80211_vif *vif,
2597 					     struct ieee80211_bss_conf *bss_conf,
2598 					     u64 changes)
2599 {
2600 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2601 	int ret;
2602 	int i;
2603 
2604 	/*
2605 	 * Re-calculate the tsf id, as the leader-follower relations depend
2606 	 * on the beacon interval, which was not known when the station
2607 	 * interface was added.
2608 	 */
2609 	if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) {
2610 		if ((vif->bss_conf.he_support &&
2611 		     !iwlwifi_mod_params.disable_11ax) ||
2612 		    (vif->bss_conf.eht_support &&
2613 		     !iwlwifi_mod_params.disable_11be))
2614 			iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);
2615 
2616 		iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2617 	}
2618 
2619 	/* Update MU EDCA params */
2620 	if (changes & BSS_CHANGED_QOS && mvmvif->associated &&
2621 	    vif->cfg.assoc &&
2622 	    ((vif->bss_conf.he_support &&
2623 	      !iwlwifi_mod_params.disable_11ax) ||
2624 	     (vif->bss_conf.eht_support &&
2625 	      !iwlwifi_mod_params.disable_11be)))
2626 		iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);
2627 
2628 	/*
2629 	 * If we're not associated yet, take the (new) BSSID before associating
2630 	 * so the firmware knows. If we're already associated, then use the old
2631 	 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2632 	 * branch for disassociation below.
2633 	 */
2634 	if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2635 		memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);
2636 
2637 	ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid);
2638 	if (ret)
2639 		IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2640 
2641 	/* after sending it once, adopt mac80211 data */
2642 	memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);
2643 	mvmvif->associated = vif->cfg.assoc;
2644 
2645 	if (changes & BSS_CHANGED_ASSOC) {
2646 		if (vif->cfg.assoc) {
2647 			/* clear statistics to get clean beacon counter */
2648 			iwl_mvm_request_statistics(mvm, true);
2649 			for_each_mvm_vif_valid_link(mvmvif, i)
2650 				memset(&mvmvif->link[i]->beacon_stats, 0,
2651 				       sizeof(mvmvif->link[i]->beacon_stats));
2652 
2653 			/* add quota for this interface */
2654 			ret = iwl_mvm_update_quotas(mvm, true, NULL);
2655 			if (ret) {
2656 				IWL_ERR(mvm, "failed to update quotas\n");
2657 				return;
2658 			}
2659 
2660 			if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2661 				     &mvm->status) &&
2662 			    !fw_has_capa(&mvm->fw->ucode_capa,
2663 					 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {
2664 				/*
2665 				 * If we're restarting then the firmware will
2666 				 * obviously have lost synchronisation with
2667 				 * the AP. It will attempt to synchronise by
2668 				 * itself, but we can make it more reliable by
2669 				 * scheduling a session protection time event.
2670 				 *
2671 				 * The firmware needs to receive a beacon to
2672 				 * catch up with synchronisation, use 110% of
2673 				 * the beacon interval.
2674 				 *
2675 				 * Set a large maximum delay to allow for more
2676 				 * than a single interface.
2677 				 *
2678 				 * For new firmware versions, rely on the
2679 				 * firmware. This is relevant for DCM scenarios
2680 				 * only anyway.
2681 				 */
2682 				u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2683 				iwl_mvm_protect_session(mvm, vif, dur, dur,
2684 							5 * dur, false);
2685 			} else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2686 					     &mvm->status) &&
2687 				   !vif->bss_conf.dtim_period) {
2688 				/*
2689 				 * If we're not restarting and still haven't
2690 				 * heard a beacon (dtim period unknown) then
2691 				 * make sure we still have enough minimum time
2692 				 * remaining in the time event, since the auth
2693 				 * might actually have taken quite a while
2694 				 * (especially for SAE) and so the remaining
2695 				 * time could be small without us having heard
2696 				 * a beacon yet.
2697 				 */
2698 				iwl_mvm_protect_assoc(mvm, vif, 0, 0);
2699 			}
2700 
2701 			iwl_mvm_sf_update(mvm, vif, false);
2702 			iwl_mvm_power_vif_assoc(mvm, vif);
2703 			if (vif->p2p) {
2704 				iwl_mvm_update_smps(mvm, vif,
2705 						    IWL_MVM_SMPS_REQ_PROT,
2706 						    IEEE80211_SMPS_DYNAMIC, 0);
2707 			}
2708 		} else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) {
2709 			iwl_mvm_mei_host_disassociated(mvm);
2710 			/*
2711 			 * If update fails - SF might be running in associated
2712 			 * mode while disassociated - which is forbidden.
2713 			 */
2714 			ret = iwl_mvm_sf_update(mvm, vif, false);
2715 			WARN_ONCE(ret &&
2716 				  !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
2717 					    &mvm->status),
2718 				  "Failed to update SF upon disassociation\n");
2719 
2720 			/*
2721 			 * If we get an assert during the connection (after the
2722 			 * station has been added, but before the vif is set
2723 			 * to associated), mac80211 will re-add the station and
2724 			 * then configure the vif. Since the vif is not
2725 			 * associated, we would remove the station here and
2726 			 * this would fail the recovery.
2727 			 */
2728 			if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2729 				      &mvm->status)) {
2730 				/* first remove remaining keys */
2731 				iwl_mvm_sec_key_remove_ap(mvm, vif,
2732 							  &mvmvif->deflink, 0);
2733 
2734 				/*
2735 				 * Remove AP station now that
2736 				 * the MAC is unassoc
2737 				 */
2738 				ret = iwl_mvm_rm_sta_id(mvm, vif,
2739 							mvmvif->deflink.ap_sta_id);
2740 				if (ret)
2741 					IWL_ERR(mvm,
2742 						"failed to remove AP station\n");
2743 
2744 				mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA;
2745 			}
2746 
2747 			/* remove quota for this interface */
2748 			ret = iwl_mvm_update_quotas(mvm, false, NULL);
2749 			if (ret)
2750 				IWL_ERR(mvm, "failed to update quotas\n");
2751 
2752 			/* this will take the cleared BSSID from bss_conf */
2753 			ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2754 			if (ret)
2755 				IWL_ERR(mvm,
2756 					"failed to update MAC %pM (clear after unassoc)\n",
2757 					vif->addr);
2758 		}
2759 
2760 		iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes);
2761 	}
2762 
2763 	iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf,
2764 						changes);
2765 }
2766 
iwl_mvm_start_ap_ibss_common(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int * ret)2767 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw,
2768 				  struct ieee80211_vif *vif,
2769 				  int *ret)
2770 {
2771 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2772 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2773 	int i;
2774 
2775 	lockdep_assert_held(&mvm->mutex);
2776 
2777 	mvmvif->ap_assoc_sta_count = 0;
2778 
2779 	/* must be set before quota calculations */
2780 	mvmvif->ap_ibss_active = true;
2781 
2782 	/* send all the early keys to the device now */
2783 	for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
2784 		struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i];
2785 
2786 		if (!key)
2787 			continue;
2788 
2789 		mvmvif->ap_early_keys[i] = NULL;
2790 
2791 		*ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key);
2792 		if (*ret)
2793 			return true;
2794 	}
2795 
2796 	if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2797 		iwl_mvm_vif_set_low_latency(mvmvif, true,
2798 					    LOW_LATENCY_VIF_TYPE);
2799 		iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);
2800 	}
2801 
2802 	/* power updated needs to be done before quotas */
2803 	iwl_mvm_power_update_mac(mvm);
2804 
2805 	return false;
2806 }
2807 
iwl_mvm_start_ap_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)2808 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2809 				 struct ieee80211_vif *vif,
2810 				 struct ieee80211_bss_conf *link_conf)
2811 {
2812 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2813 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2814 	int ret;
2815 
2816 	mutex_lock(&mvm->mutex);
2817 
2818 	/*
2819 	 * Re-calculate the tsf id, as the leader-follower relations depend on
2820 	 * the beacon interval, which was not known when the AP interface
2821 	 * was added.
2822 	 */
2823 	if (vif->type == NL80211_IFTYPE_AP)
2824 		iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2825 
2826 	/* For older devices need to send beacon template before adding mac
2827 	 * context. For the newer, the beacon is a resource that belongs to a
2828 	 * MAC, so need to send beacon template after adding the mac.
2829 	 */
2830 	if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) {
2831 		/* Add the mac context */
2832 		ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2833 		if (ret)
2834 			goto out_unlock;
2835 
2836 		/* Send the beacon template */
2837 		ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
2838 		if (ret)
2839 			goto out_unlock;
2840 	} else {
2841 		/* Send the beacon template */
2842 		ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
2843 		if (ret)
2844 			goto out_unlock;
2845 
2846 		/* Add the mac context */
2847 		ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2848 		if (ret)
2849 			goto out_unlock;
2850 	}
2851 
2852 	/* Perform the binding */
2853 	ret = iwl_mvm_binding_add_vif(mvm, vif);
2854 	if (ret)
2855 		goto out_remove;
2856 
2857 	/*
2858 	 * This is not very nice, but the simplest:
2859 	 * For older FWs adding the mcast sta before the bcast station may
2860 	 * cause assert 0x2b00.
2861 	 * This is fixed in later FW so make the order of removal depend on
2862 	 * the TLV
2863 	 */
2864 	if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
2865 		ret = iwl_mvm_add_mcast_sta(mvm, vif);
2866 		if (ret)
2867 			goto out_unbind;
2868 		/*
2869 		 * Send the bcast station. At this stage the TBTT and DTIM time
2870 		 * events are added and applied to the scheduler
2871 		 */
2872 		ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2873 		if (ret) {
2874 			iwl_mvm_rm_mcast_sta(mvm, vif);
2875 			goto out_unbind;
2876 		}
2877 	} else {
2878 		/*
2879 		 * Send the bcast station. At this stage the TBTT and DTIM time
2880 		 * events are added and applied to the scheduler
2881 		 */
2882 		ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2883 		if (ret)
2884 			goto out_unbind;
2885 		ret = iwl_mvm_add_mcast_sta(mvm, vif);
2886 		if (ret) {
2887 			iwl_mvm_send_rm_bcast_sta(mvm, vif);
2888 			goto out_unbind;
2889 		}
2890 	}
2891 
2892 	if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret))
2893 		goto out_failed;
2894 
2895 	ret = iwl_mvm_update_quotas(mvm, false, NULL);
2896 	if (ret)
2897 		goto out_failed;
2898 
2899 	/* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2900 	if (vif->p2p && mvm->p2p_device_vif)
2901 		iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2902 
2903 	iwl_mvm_bt_coex_vif_change(mvm);
2904 
2905 	/* we don't support TDLS during DCM */
2906 	if (iwl_mvm_phy_ctx_count(mvm) > 1)
2907 		iwl_mvm_teardown_tdls_peers(mvm);
2908 
2909 	iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf);
2910 
2911 	goto out_unlock;
2912 
2913 out_failed:
2914 	iwl_mvm_power_update_mac(mvm);
2915 	mvmvif->ap_ibss_active = false;
2916 	iwl_mvm_send_rm_bcast_sta(mvm, vif);
2917 	iwl_mvm_rm_mcast_sta(mvm, vif);
2918 out_unbind:
2919 	iwl_mvm_binding_remove_vif(mvm, vif);
2920 out_remove:
2921 	iwl_mvm_mac_ctxt_remove(mvm, vif);
2922 out_unlock:
2923 	mutex_unlock(&mvm->mutex);
2924 	return ret;
2925 }
2926 
iwl_mvm_start_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)2927 static int iwl_mvm_start_ap(struct ieee80211_hw *hw,
2928 			    struct ieee80211_vif *vif,
2929 			    struct ieee80211_bss_conf *link_conf)
2930 {
2931 	return iwl_mvm_start_ap_ibss(hw, vif, link_conf);
2932 }
2933 
iwl_mvm_start_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif)2934 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw,
2935 			      struct ieee80211_vif *vif)
2936 {
2937 	return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf);
2938 }
2939 
2940 /* Common part for MLD and non-MLD ops */
iwl_mvm_stop_ap_ibss_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2941 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm,
2942 				 struct ieee80211_vif *vif)
2943 {
2944 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2945 
2946 	lockdep_assert_held(&mvm->mutex);
2947 
2948 	iwl_mvm_prepare_mac_removal(mvm, vif);
2949 
2950 	/* Handle AP stop while in CSA */
2951 	if (rcu_access_pointer(mvm->csa_vif) == vif) {
2952 		iwl_mvm_remove_time_event(mvm, mvmvif,
2953 					  &mvmvif->time_event_data);
2954 		RCU_INIT_POINTER(mvm->csa_vif, NULL);
2955 		mvmvif->csa_countdown = false;
2956 	}
2957 
2958 	if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2959 		RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2960 		mvm->csa_tx_block_bcn_timeout = 0;
2961 	}
2962 
2963 	mvmvif->ap_ibss_active = false;
2964 	mvm->ap_last_beacon_gp2 = 0;
2965 
2966 	if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2967 		iwl_mvm_vif_set_low_latency(mvmvif, false,
2968 					    LOW_LATENCY_VIF_TYPE);
2969 		iwl_mvm_send_low_latency_cmd(mvm, false,  mvmvif->id);
2970 	}
2971 
2972 	iwl_mvm_bt_coex_vif_change(mvm);
2973 }
2974 
iwl_mvm_stop_ap_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)2975 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2976 				 struct ieee80211_vif *vif,
2977 				 struct ieee80211_bss_conf *link_conf)
2978 {
2979 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2980 
2981 	mutex_lock(&mvm->mutex);
2982 
2983 	iwl_mvm_stop_ap_ibss_common(mvm, vif);
2984 
2985 	/* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2986 	if (vif->p2p && mvm->p2p_device_vif)
2987 		iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2988 
2989 	iwl_mvm_update_quotas(mvm, false, NULL);
2990 
2991 	iwl_mvm_ftm_responder_clear(mvm, vif);
2992 
2993 	/*
2994 	 * This is not very nice, but the simplest:
2995 	 * For older FWs removing the mcast sta before the bcast station may
2996 	 * cause assert 0x2b00.
2997 	 * This is fixed in later FW (which will stop beaconing when removing
2998 	 * bcast station).
2999 	 * So make the order of removal depend on the TLV
3000 	 */
3001 	if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
3002 		iwl_mvm_rm_mcast_sta(mvm, vif);
3003 	iwl_mvm_send_rm_bcast_sta(mvm, vif);
3004 	if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
3005 		iwl_mvm_rm_mcast_sta(mvm, vif);
3006 	iwl_mvm_binding_remove_vif(mvm, vif);
3007 
3008 	iwl_mvm_power_update_mac(mvm);
3009 
3010 	iwl_mvm_mac_ctxt_remove(mvm, vif);
3011 
3012 	mutex_unlock(&mvm->mutex);
3013 }
3014 
iwl_mvm_stop_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)3015 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw,
3016 			    struct ieee80211_vif *vif,
3017 			    struct ieee80211_bss_conf *link_conf)
3018 {
3019 	iwl_mvm_stop_ap_ibss(hw, vif, link_conf);
3020 }
3021 
iwl_mvm_stop_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif)3022 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw,
3023 			      struct ieee80211_vif *vif)
3024 {
3025 	iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf);
3026 }
3027 
3028 static void
iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf,u64 changes)3029 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
3030 				 struct ieee80211_vif *vif,
3031 				 struct ieee80211_bss_conf *bss_conf,
3032 				 u64 changes)
3033 {
3034 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3035 
3036 	/* Changes will be applied when the AP/IBSS is started */
3037 	if (!mvmvif->ap_ibss_active)
3038 		return;
3039 
3040 	if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
3041 		       BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3042 	    iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
3043 		IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
3044 
3045 	/* Need to send a new beacon template to the FW */
3046 	if (changes & BSS_CHANGED_BEACON &&
3047 	    iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf))
3048 		IWL_WARN(mvm, "Failed updating beacon data\n");
3049 
3050 	if (changes & BSS_CHANGED_FTM_RESPONDER) {
3051 		int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf);
3052 
3053 		if (ret)
3054 			IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n",
3055 				 ret);
3056 	}
3057 
3058 }
3059 
iwl_mvm_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf,u64 changes)3060 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
3061 				     struct ieee80211_vif *vif,
3062 				     struct ieee80211_bss_conf *bss_conf,
3063 				     u64 changes)
3064 {
3065 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3066 
3067 	mutex_lock(&mvm->mutex);
3068 
3069 	if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle)
3070 		iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
3071 
3072 	switch (vif->type) {
3073 	case NL80211_IFTYPE_STATION:
3074 		iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
3075 		break;
3076 	case NL80211_IFTYPE_AP:
3077 	case NL80211_IFTYPE_ADHOC:
3078 		iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
3079 		break;
3080 	case NL80211_IFTYPE_MONITOR:
3081 		if (changes & BSS_CHANGED_MU_GROUPS)
3082 			iwl_mvm_update_mu_groups(mvm, vif);
3083 		break;
3084 	default:
3085 		/* shouldn't happen */
3086 		WARN_ON_ONCE(1);
3087 	}
3088 
3089 	if (changes & BSS_CHANGED_TXPOWER) {
3090 		IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n",
3091 				bss_conf->txpower);
3092 		iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
3093 	}
3094 
3095 	mutex_unlock(&mvm->mutex);
3096 }
3097 
iwl_mvm_mac_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * hw_req)3098 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3099 			struct ieee80211_scan_request *hw_req)
3100 {
3101 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3102 	int ret;
3103 
3104 	if (hw_req->req.n_channels == 0 ||
3105 	    hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
3106 		return -EINVAL;
3107 
3108 	mutex_lock(&mvm->mutex);
3109 	ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
3110 	mutex_unlock(&mvm->mutex);
3111 
3112 	return ret;
3113 }
3114 
iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)3115 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
3116 				struct ieee80211_vif *vif)
3117 {
3118 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3119 
3120 	mutex_lock(&mvm->mutex);
3121 
3122 	/* Due to a race condition, it's possible that mac80211 asks
3123 	 * us to stop a hw_scan when it's already stopped.  This can
3124 	 * happen, for instance, if we stopped the scan ourselves,
3125 	 * called ieee80211_scan_completed() and the userspace called
3126 	 * cancel scan scan before ieee80211_scan_work() could run.
3127 	 * To handle that, simply return if the scan is not running.
3128 	*/
3129 	if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
3130 		iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
3131 
3132 	mutex_unlock(&mvm->mutex);
3133 }
3134 
3135 void
iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tids,int num_frames,enum ieee80211_frame_release_type reason,bool more_data)3136 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3137 				  struct ieee80211_sta *sta, u16 tids,
3138 				  int num_frames,
3139 				  enum ieee80211_frame_release_type reason,
3140 				  bool more_data)
3141 {
3142 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3143 
3144 	/* Called when we need to transmit (a) frame(s) from mac80211 */
3145 
3146 	iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
3147 					  tids, more_data, false);
3148 }
3149 
3150 void
iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tids,int num_frames,enum ieee80211_frame_release_type reason,bool more_data)3151 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
3152 				    struct ieee80211_sta *sta, u16 tids,
3153 				    int num_frames,
3154 				    enum ieee80211_frame_release_type reason,
3155 				    bool more_data)
3156 {
3157 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3158 
3159 	/* Called when we need to transmit (a) frame(s) from agg or dqa queue */
3160 
3161 	iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
3162 					  tids, more_data, true);
3163 }
3164 
__iwl_mvm_mac_sta_notify(struct ieee80211_hw * hw,enum sta_notify_cmd cmd,struct ieee80211_sta * sta)3165 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
3166 				     enum sta_notify_cmd cmd,
3167 				     struct ieee80211_sta *sta)
3168 {
3169 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3170 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3171 	unsigned long txqs = 0, tids = 0;
3172 	int tid;
3173 
3174 	/*
3175 	 * If we have TVQM then we get too high queue numbers - luckily
3176 	 * we really shouldn't get here with that because such hardware
3177 	 * should have firmware supporting buffer station offload.
3178 	 */
3179 	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
3180 		return;
3181 
3182 	spin_lock_bh(&mvmsta->lock);
3183 	for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) {
3184 		struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
3185 
3186 		if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
3187 			continue;
3188 
3189 		__set_bit(tid_data->txq_id, &txqs);
3190 
3191 		if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
3192 			continue;
3193 
3194 		__set_bit(tid, &tids);
3195 	}
3196 
3197 	switch (cmd) {
3198 	case STA_NOTIFY_SLEEP:
3199 		for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3200 			ieee80211_sta_set_buffered(sta, tid, true);
3201 
3202 		if (txqs)
3203 			iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
3204 		/*
3205 		 * The fw updates the STA to be asleep. Tx packets on the Tx
3206 		 * queues to this station will not be transmitted. The fw will
3207 		 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
3208 		 */
3209 		break;
3210 	case STA_NOTIFY_AWAKE:
3211 		if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA))
3212 			break;
3213 
3214 		if (txqs)
3215 			iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
3216 		iwl_mvm_sta_modify_ps_wake(mvm, sta);
3217 		break;
3218 	default:
3219 		break;
3220 	}
3221 	spin_unlock_bh(&mvmsta->lock);
3222 }
3223 
iwl_mvm_mac_sta_notify(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum sta_notify_cmd cmd,struct ieee80211_sta * sta)3224 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3225 			    enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
3226 {
3227 	__iwl_mvm_mac_sta_notify(hw, cmd, sta);
3228 }
3229 
iwl_mvm_sta_pm_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)3230 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
3231 {
3232 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
3233 	struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
3234 	struct ieee80211_sta *sta;
3235 	struct iwl_mvm_sta *mvmsta;
3236 	bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
3237 
3238 	if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations))
3239 		return;
3240 
3241 	rcu_read_lock();
3242 	sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
3243 	if (WARN_ON(IS_ERR_OR_NULL(sta))) {
3244 		rcu_read_unlock();
3245 		return;
3246 	}
3247 
3248 	mvmsta = iwl_mvm_sta_from_mac80211(sta);
3249 
3250 	if (!mvmsta->vif ||
3251 	    mvmsta->vif->type != NL80211_IFTYPE_AP) {
3252 		rcu_read_unlock();
3253 		return;
3254 	}
3255 
3256 	if (mvmsta->sleeping != sleeping) {
3257 		mvmsta->sleeping = sleeping;
3258 		__iwl_mvm_mac_sta_notify(mvm->hw,
3259 			sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
3260 			sta);
3261 		ieee80211_sta_ps_transition(sta, sleeping);
3262 	}
3263 
3264 	if (sleeping) {
3265 		switch (notif->type) {
3266 		case IWL_MVM_PM_EVENT_AWAKE:
3267 		case IWL_MVM_PM_EVENT_ASLEEP:
3268 			break;
3269 		case IWL_MVM_PM_EVENT_UAPSD:
3270 			ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
3271 			break;
3272 		case IWL_MVM_PM_EVENT_PS_POLL:
3273 			ieee80211_sta_pspoll(sta);
3274 			break;
3275 		default:
3276 			break;
3277 		}
3278 	}
3279 
3280 	rcu_read_unlock();
3281 }
3282 
iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3283 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
3284 				struct ieee80211_vif *vif,
3285 				struct ieee80211_sta *sta)
3286 {
3287 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3288 	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3289 	unsigned int link_id;
3290 
3291 	/*
3292 	 * This is called before mac80211 does RCU synchronisation,
3293 	 * so here we already invalidate our internal RCU-protected
3294 	 * station pointer. The rest of the code will thus no longer
3295 	 * be able to find the station this way, and we don't rely
3296 	 * on further RCU synchronisation after the sta_state()
3297 	 * callback deleted the station.
3298 	 * Since there's mvm->mutex here, no need to have RCU lock for
3299 	 * mvm_sta->link access.
3300 	 */
3301 	mutex_lock(&mvm->mutex);
3302 	for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) {
3303 		struct iwl_mvm_link_sta *link_sta;
3304 		u32 sta_id;
3305 
3306 		if (!mvm_sta->link[link_id])
3307 			continue;
3308 
3309 		link_sta = rcu_dereference_protected(mvm_sta->link[link_id],
3310 						     lockdep_is_held(&mvm->mutex));
3311 		sta_id = link_sta->sta_id;
3312 		if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) {
3313 			RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id],
3314 					 ERR_PTR(-ENOENT));
3315 			RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL);
3316 		}
3317 	}
3318 	mutex_unlock(&mvm->mutex);
3319 }
3320 
iwl_mvm_check_uapsd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const u8 * bssid)3321 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
3322 				const u8 *bssid)
3323 {
3324 	int i;
3325 
3326 	if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
3327 		struct iwl_mvm_tcm_mac *mdata;
3328 
3329 		mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id];
3330 		ewma_rate_init(&mdata->uapsd_nonagg_detect.rate);
3331 		mdata->opened_rx_ba_sessions = false;
3332 	}
3333 
3334 	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
3335 		return;
3336 
3337 	if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
3338 		vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3339 		return;
3340 	}
3341 
3342 	if (!vif->p2p &&
3343 	    (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
3344 		vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3345 		return;
3346 	}
3347 
3348 	for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) {
3349 		if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) {
3350 			vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3351 			return;
3352 		}
3353 	}
3354 
3355 	vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
3356 }
3357 
3358 static void
iwl_mvm_tdls_check_trigger(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u8 * peer_addr,enum nl80211_tdls_operation action)3359 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
3360 			   struct ieee80211_vif *vif, u8 *peer_addr,
3361 			   enum nl80211_tdls_operation action)
3362 {
3363 	struct iwl_fw_dbg_trigger_tlv *trig;
3364 	struct iwl_fw_dbg_trigger_tdls *tdls_trig;
3365 
3366 	trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
3367 				     FW_DBG_TRIGGER_TDLS);
3368 	if (!trig)
3369 		return;
3370 
3371 	tdls_trig = (void *)trig->data;
3372 
3373 	if (!(tdls_trig->action_bitmap & BIT(action)))
3374 		return;
3375 
3376 	if (tdls_trig->peer_mode &&
3377 	    memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
3378 		return;
3379 
3380 	iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
3381 				"TDLS event occurred, peer %pM, action %d",
3382 				peer_addr, action);
3383 }
3384 
3385 struct iwl_mvm_he_obss_narrow_bw_ru_data {
3386 	bool tolerated;
3387 };
3388 
iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy * wiphy,struct cfg80211_bss * bss,void * _data)3389 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy,
3390 						    struct cfg80211_bss *bss,
3391 						    void *_data)
3392 {
3393 	struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data;
3394 	const struct cfg80211_bss_ies *ies;
3395 	const struct element *elem;
3396 
3397 	rcu_read_lock();
3398 	ies = rcu_dereference(bss->ies);
3399 	elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data,
3400 				  ies->len);
3401 
3402 	if (!elem || elem->datalen < 10 ||
3403 	    !(elem->data[10] &
3404 	      WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) {
3405 		data->tolerated = false;
3406 	}
3407 	rcu_read_unlock();
3408 }
3409 
3410 static void
iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,struct ieee80211_bss_conf * link_conf)3411 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,
3412 				   struct ieee80211_vif *vif,
3413 				   unsigned int link_id,
3414 				   struct ieee80211_bss_conf *link_conf)
3415 {
3416 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3417 	struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = {
3418 		.tolerated = true,
3419 	};
3420 
3421 	if (WARN_ON_ONCE(!link_conf->chandef.chan ||
3422 			 !mvmvif->link[link_id]))
3423 		return;
3424 
3425 	if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) {
3426 		mvmvif->link[link_id]->he_ru_2mhz_block = false;
3427 		return;
3428 	}
3429 
3430 	cfg80211_bss_iter(hw->wiphy, &link_conf->chandef,
3431 			  iwl_mvm_check_he_obss_narrow_bw_ru_iter,
3432 			  &iter_data);
3433 
3434 	/*
3435 	 * If there is at least one AP on radar channel that cannot
3436 	 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU.
3437 	 */
3438 	mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated;
3439 }
3440 
iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm * mvm,struct ieee80211_vif * vif)3441 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm,
3442 					       struct ieee80211_vif *vif)
3443 {
3444 	struct ieee80211_supported_band *sband;
3445 	const struct ieee80211_sta_he_cap *he_cap;
3446 
3447 	if (vif->type != NL80211_IFTYPE_STATION)
3448 		return;
3449 
3450 	if (!mvm->cca_40mhz_workaround)
3451 		return;
3452 
3453 	/* decrement and check that we reached zero */
3454 	mvm->cca_40mhz_workaround--;
3455 	if (mvm->cca_40mhz_workaround)
3456 		return;
3457 
3458 	sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
3459 
3460 	sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
3461 
3462 	he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
3463 
3464 	if (he_cap) {
3465 		/* we know that ours is writable */
3466 		struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
3467 
3468 		he->he_cap_elem.phy_cap_info[0] |=
3469 			IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
3470 	}
3471 }
3472 
iwl_mvm_mei_host_associated(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mvm_sta * mvm_sta)3473 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm,
3474 					struct ieee80211_vif *vif,
3475 					struct iwl_mvm_sta *mvm_sta)
3476 {
3477 #if IS_ENABLED(CONFIG_IWLMEI)
3478 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3479 	struct iwl_mei_conn_info conn_info = {
3480 		.ssid_len = vif->cfg.ssid_len,
3481 	};
3482 
3483 	if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3484 		return;
3485 
3486 	if (!mvm->mei_registered)
3487 		return;
3488 
3489 	/* FIXME: MEI needs to be updated for MLO */
3490 	if (!vif->bss_conf.chandef.chan)
3491 		return;
3492 
3493 	conn_info.channel = vif->bss_conf.chandef.chan->hw_value;
3494 
3495 	switch (mvm_sta->pairwise_cipher) {
3496 	case WLAN_CIPHER_SUITE_TKIP:
3497 		conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP;
3498 		break;
3499 	case WLAN_CIPHER_SUITE_CCMP:
3500 		conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP;
3501 		break;
3502 	case WLAN_CIPHER_SUITE_GCMP:
3503 		conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP;
3504 		break;
3505 	case WLAN_CIPHER_SUITE_GCMP_256:
3506 		conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256;
3507 		break;
3508 	case 0:
3509 		/* open profile */
3510 		break;
3511 	default:
3512 		/* cipher not supported, don't send anything to iwlmei */
3513 		return;
3514 	}
3515 
3516 	switch (mvmvif->rekey_data.akm) {
3517 	case WLAN_AKM_SUITE_SAE & 0xff:
3518 		conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE;
3519 		break;
3520 	case WLAN_AKM_SUITE_PSK & 0xff:
3521 		conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK;
3522 		break;
3523 	case WLAN_AKM_SUITE_8021X & 0xff:
3524 		conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA;
3525 		break;
3526 	case 0:
3527 		/* open profile */
3528 		conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN;
3529 		break;
3530 	default:
3531 		/* auth method / AKM not supported */
3532 		/* TODO: All the FT vesions of these? */
3533 		return;
3534 	}
3535 
3536 	memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len);
3537 	memcpy(conn_info.bssid,  vif->bss_conf.bssid, ETH_ALEN);
3538 
3539 	/* TODO: add support for collocated AP data */
3540 	iwl_mei_host_associated(&conn_info, NULL);
3541 #endif
3542 }
3543 
iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool force_assoc_off)3544 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm,
3545 					    struct ieee80211_vif *vif,
3546 					    bool force_assoc_off)
3547 {
3548 	return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL);
3549 }
3550 
iwl_mvm_mac_sta_state(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,enum ieee80211_sta_state old_state,enum ieee80211_sta_state new_state)3551 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
3552 				 struct ieee80211_vif *vif,
3553 				 struct ieee80211_sta *sta,
3554 				 enum ieee80211_sta_state old_state,
3555 				 enum ieee80211_sta_state new_state)
3556 {
3557 	static const struct iwl_mvm_sta_state_ops callbacks = {
3558 		.add_sta = iwl_mvm_add_sta,
3559 		.update_sta = iwl_mvm_update_sta,
3560 		.rm_sta = iwl_mvm_rm_sta,
3561 		.mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper,
3562 	};
3563 
3564 	return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state,
3565 					    &callbacks);
3566 }
3567 
3568 /* FIXME: temporary making two assumptions in all sta handling functions:
3569  *	(1) when setting sta state, the link exists and protected
3570  *	(2) if a link is valid in sta then it's valid in vif (can
3571  *	use same index in the link array)
3572  */
iwl_mvm_rs_rate_init_all_links(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3573 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm,
3574 					   struct ieee80211_vif *vif,
3575 					   struct ieee80211_sta *sta)
3576 {
3577 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3578 	unsigned int link_id;
3579 
3580 	for_each_mvm_vif_valid_link(mvmvif, link_id) {
3581 		struct ieee80211_bss_conf *conf =
3582 			link_conf_dereference_check(vif, link_id);
3583 		struct ieee80211_link_sta *link_sta =
3584 			link_sta_dereference_check(sta, link_id);
3585 
3586 		if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt)
3587 			continue;
3588 
3589 		iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta,
3590 				     mvmvif->link[link_id]->phy_ctxt->channel->band);
3591 	}
3592 }
3593 
3594 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16
3595 
iwl_mvm_vif_conf_from_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3596 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm,
3597 				      struct ieee80211_vif *vif,
3598 				      struct ieee80211_sta *sta)
3599 {
3600 	struct ieee80211_link_sta *link_sta;
3601 	unsigned int link_id;
3602 
3603 	/* Beacon interval check - firmware will crash if the beacon
3604 	 * interval is less than 16. We can't avoid connecting at all,
3605 	 * so refuse the station state change, this will cause mac80211
3606 	 * to abandon attempts to connect to this AP, and eventually
3607 	 * wpa_s will blocklist the AP...
3608 	 */
3609 
3610 	for_each_sta_active_link(vif, sta, link_sta, link_id) {
3611 		struct ieee80211_bss_conf *link_conf =
3612 			link_conf_dereference_protected(vif, link_id);
3613 
3614 		if (!link_conf)
3615 			continue;
3616 
3617 		if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) {
3618 			IWL_ERR(mvm,
3619 				"Beacon interval %d for AP %pM is too small\n",
3620 				link_conf->beacon_int, link_sta->addr);
3621 			return false;
3622 		}
3623 
3624 		link_conf->he_support = link_sta->he_cap.has_he;
3625 	}
3626 
3627 	return true;
3628 }
3629 
iwl_mvm_vif_set_he_support(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool is_sta)3630 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw,
3631 				       struct ieee80211_vif *vif,
3632 				       struct ieee80211_sta *sta,
3633 				       bool is_sta)
3634 {
3635 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3636 	struct ieee80211_link_sta *link_sta;
3637 	unsigned int link_id;
3638 
3639 	for_each_sta_active_link(vif, sta, link_sta, link_id) {
3640 		struct ieee80211_bss_conf *link_conf =
3641 			link_conf_dereference_protected(vif, link_id);
3642 
3643 		if (!link_conf || !mvmvif->link[link_id])
3644 			continue;
3645 
3646 		link_conf->he_support = link_sta->he_cap.has_he;
3647 
3648 		if (is_sta) {
3649 			mvmvif->link[link_id]->he_ru_2mhz_block = false;
3650 			if (link_sta->he_cap.has_he)
3651 				iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif,
3652 								   link_id,
3653 								   link_conf);
3654 		}
3655 	}
3656 }
3657 
3658 static int
iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,const struct iwl_mvm_sta_state_ops * callbacks)3659 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm,
3660 				   struct ieee80211_vif *vif,
3661 				   struct ieee80211_sta *sta,
3662 				   const struct iwl_mvm_sta_state_ops *callbacks)
3663 {
3664 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3665 	struct ieee80211_link_sta *link_sta;
3666 	unsigned int i;
3667 	int ret;
3668 
3669 	lockdep_assert_held(&mvm->mutex);
3670 
3671 	if (vif->type == NL80211_IFTYPE_STATION &&
3672 	    !iwl_mvm_vif_conf_from_sta(mvm, vif, sta))
3673 		return -EINVAL;
3674 
3675 	if (sta->tdls &&
3676 	    (vif->p2p ||
3677 	     iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT ||
3678 	     iwl_mvm_phy_ctx_count(mvm) > 1)) {
3679 		IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
3680 		return -EBUSY;
3681 	}
3682 
3683 	ret = callbacks->add_sta(mvm, vif, sta);
3684 	if (sta->tdls && ret == 0) {
3685 		iwl_mvm_recalc_tdls_state(mvm, vif, true);
3686 		iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3687 					   NL80211_TDLS_SETUP);
3688 	}
3689 
3690 	if (ret)
3691 		return ret;
3692 
3693 	for_each_sta_active_link(vif, sta, link_sta, i)
3694 		link_sta->agg.max_rc_amsdu_len = 1;
3695 
3696 	ieee80211_sta_recalc_aggregates(sta);
3697 
3698 	if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
3699 		mvmvif->ap_sta = sta;
3700 
3701 	return 0;
3702 }
3703 
3704 static int
iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw * hw,struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,const struct iwl_mvm_sta_state_ops * callbacks)3705 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw,
3706 				struct iwl_mvm *mvm,
3707 				struct ieee80211_vif *vif,
3708 				struct ieee80211_sta *sta,
3709 				const struct iwl_mvm_sta_state_ops *callbacks)
3710 {
3711 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3712 	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3713 	struct ieee80211_link_sta *link_sta;
3714 	unsigned int link_id;
3715 
3716 	lockdep_assert_held(&mvm->mutex);
3717 
3718 	if (vif->type == NL80211_IFTYPE_AP) {
3719 		iwl_mvm_vif_set_he_support(hw, vif, sta, false);
3720 		mvmvif->ap_assoc_sta_count++;
3721 		callbacks->mac_ctxt_changed(mvm, vif, false);
3722 
3723 		/* since the below is not for MLD API, it's ok to use
3724 		 * the default bss_conf
3725 		 */
3726 		if (!mvm->mld_api_is_used &&
3727 		    ((vif->bss_conf.he_support &&
3728 		      !iwlwifi_mod_params.disable_11ax) ||
3729 		    (vif->bss_conf.eht_support &&
3730 		     !iwlwifi_mod_params.disable_11be)))
3731 			iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id);
3732 	} else if (vif->type == NL80211_IFTYPE_STATION) {
3733 		iwl_mvm_vif_set_he_support(hw, vif, sta, true);
3734 
3735 		callbacks->mac_ctxt_changed(mvm, vif, false);
3736 
3737 		if (!mvm->mld_api_is_used)
3738 			goto out;
3739 
3740 		for_each_sta_active_link(vif, sta, link_sta, link_id) {
3741 			struct ieee80211_bss_conf *link_conf =
3742 				link_conf_dereference_protected(vif, link_id);
3743 
3744 			if (WARN_ON(!link_conf))
3745 				return -EINVAL;
3746 			if (!mvmvif->link[link_id])
3747 				continue;
3748 
3749 			iwl_mvm_link_changed(mvm, vif, link_conf,
3750 					     LINK_CONTEXT_MODIFY_ALL &
3751 					     ~LINK_CONTEXT_MODIFY_ACTIVE,
3752 					     true);
3753 		}
3754 	}
3755 
3756 out:
3757 	iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3758 
3759 	return callbacks->update_sta(mvm, vif, sta);
3760 }
3761 
3762 static int
iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,const struct iwl_mvm_sta_state_ops * callbacks)3763 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm,
3764 				      struct ieee80211_vif *vif,
3765 				      struct ieee80211_sta *sta,
3766 				      const struct iwl_mvm_sta_state_ops *callbacks)
3767 {
3768 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3769 	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3770 
3771 	lockdep_assert_held(&mvm->mutex);
3772 
3773 	/* we don't support TDLS during DCM */
3774 	if (iwl_mvm_phy_ctx_count(mvm) > 1)
3775 		iwl_mvm_teardown_tdls_peers(mvm);
3776 
3777 	if (sta->tdls) {
3778 		iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3779 					   NL80211_TDLS_ENABLE_LINK);
3780 	} else {
3781 		/* enable beacon filtering */
3782 		WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
3783 
3784 		mvmvif->authorized = 1;
3785 
3786 		callbacks->mac_ctxt_changed(mvm, vif, false);
3787 		iwl_mvm_mei_host_associated(mvm, vif, mvm_sta);
3788 
3789 		/* when client is authorized (AP station marked as such),
3790 		 * try to enable more links
3791 		 */
3792 		if (vif->type == NL80211_IFTYPE_STATION &&
3793 		    !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3794 			iwl_mvm_mld_select_links(mvm, vif, false);
3795 	}
3796 
3797 	mvm_sta->authorized = true;
3798 
3799 	iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3800 
3801 	/* MFP is set by default before the station is authorized.
3802 	 * Clear it here in case it's not used.
3803 	 */
3804 	if (!sta->mfp)
3805 		return callbacks->update_sta(mvm, vif, sta);
3806 
3807 	return 0;
3808 }
3809 
3810 static int
iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,const struct iwl_mvm_sta_state_ops * callbacks)3811 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm,
3812 				      struct ieee80211_vif *vif,
3813 				      struct ieee80211_sta *sta,
3814 				      const struct iwl_mvm_sta_state_ops *callbacks)
3815 {
3816 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3817 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3818 
3819 	lockdep_assert_held(&mvm->mutex);
3820 
3821 	mvmsta->authorized = false;
3822 
3823 	/* once we move into assoc state, need to update rate scale to
3824 	 * disable using wide bandwidth
3825 	 */
3826 	iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3827 
3828 	if (!sta->tdls) {
3829 		/* Set this but don't call iwl_mvm_mac_ctxt_changed()
3830 		 * yet to avoid sending high prio again for a little
3831 		 * time.
3832 		 */
3833 		mvmvif->authorized = 0;
3834 
3835 		/* disable beacon filtering */
3836 		iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3837 	}
3838 
3839 	return 0;
3840 }
3841 
3842 /* Common part for MLD and non-MLD modes */
iwl_mvm_mac_sta_state_common(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,enum ieee80211_sta_state old_state,enum ieee80211_sta_state new_state,const struct iwl_mvm_sta_state_ops * callbacks)3843 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw,
3844 				 struct ieee80211_vif *vif,
3845 				 struct ieee80211_sta *sta,
3846 				 enum ieee80211_sta_state old_state,
3847 				 enum ieee80211_sta_state new_state,
3848 				 const struct iwl_mvm_sta_state_ops *callbacks)
3849 {
3850 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3851 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3852 	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3853 	struct ieee80211_link_sta *link_sta;
3854 	unsigned int link_id;
3855 	int ret;
3856 
3857 	IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
3858 			   sta->addr, old_state, new_state);
3859 
3860 	/*
3861 	 * If we are in a STA removal flow and in DQA mode:
3862 	 *
3863 	 * This is after the sync_rcu part, so the queues have already been
3864 	 * flushed. No more TXs on their way in mac80211's path, and no more in
3865 	 * the queues.
3866 	 * Also, we won't be getting any new TX frames for this station.
3867 	 * What we might have are deferred TX frames that need to be taken care
3868 	 * of.
3869 	 *
3870 	 * Drop any still-queued deferred-frame before removing the STA, and
3871 	 * make sure the worker is no longer handling frames for this STA.
3872 	 */
3873 	if (old_state == IEEE80211_STA_NONE &&
3874 	    new_state == IEEE80211_STA_NOTEXIST) {
3875 		flush_work(&mvm->add_stream_wk);
3876 
3877 		/*
3878 		 * No need to make sure deferred TX indication is off since the
3879 		 * worker will already remove it if it was on
3880 		 */
3881 
3882 		/*
3883 		 * Additionally, reset the 40 MHz capability if we disconnected
3884 		 * from the AP now.
3885 		 */
3886 		iwl_mvm_reset_cca_40mhz_workaround(mvm, vif);
3887 
3888 		/* Also free dup data just in case any assertions below fail */
3889 		kfree(mvm_sta->dup_data);
3890 	}
3891 
3892 	mutex_lock(&mvm->mutex);
3893 
3894 	/* this would be a mac80211 bug ... but don't crash, unless we had a
3895 	 * firmware crash while we were activating a link, in which case it is
3896 	 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in
3897 	 * recovery flow since we spit tons of error messages anyway.
3898 	 */
3899 	for_each_sta_active_link(vif, sta, link_sta, link_id) {
3900 		if (WARN_ON_ONCE(!mvmvif->link[link_id] ||
3901 				 !mvmvif->link[link_id]->phy_ctxt)) {
3902 			mutex_unlock(&mvm->mutex);
3903 			return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
3904 					&mvm->status) ? 0 : -EINVAL;
3905 		}
3906 	}
3907 
3908 	/* track whether or not the station is associated */
3909 	mvm_sta->sta_state = new_state;
3910 
3911 	if (old_state == IEEE80211_STA_NOTEXIST &&
3912 	    new_state == IEEE80211_STA_NONE) {
3913 		ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta,
3914 							 callbacks);
3915 		if (ret < 0)
3916 			goto out_unlock;
3917 	} else if (old_state == IEEE80211_STA_NONE &&
3918 		   new_state == IEEE80211_STA_AUTH) {
3919 		/*
3920 		 * EBS may be disabled due to previous failures reported by FW.
3921 		 * Reset EBS status here assuming environment has been changed.
3922 		 */
3923 		mvm->last_ebs_successful = true;
3924 		iwl_mvm_check_uapsd(mvm, vif, sta->addr);
3925 		ret = 0;
3926 	} else if (old_state == IEEE80211_STA_AUTH &&
3927 		   new_state == IEEE80211_STA_ASSOC) {
3928 		ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta,
3929 						      callbacks);
3930 	} else if (old_state == IEEE80211_STA_ASSOC &&
3931 		   new_state == IEEE80211_STA_AUTHORIZED) {
3932 		ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta,
3933 							    callbacks);
3934 	} else if (old_state == IEEE80211_STA_AUTHORIZED &&
3935 		   new_state == IEEE80211_STA_ASSOC) {
3936 		ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta,
3937 							    callbacks);
3938 	} else if (old_state == IEEE80211_STA_ASSOC &&
3939 		   new_state == IEEE80211_STA_AUTH) {
3940 		if (vif->type == NL80211_IFTYPE_AP) {
3941 			mvmvif->ap_assoc_sta_count--;
3942 			callbacks->mac_ctxt_changed(mvm, vif, false);
3943 		} else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
3944 			iwl_mvm_stop_session_protection(mvm, vif);
3945 		ret = 0;
3946 	} else if (old_state == IEEE80211_STA_AUTH &&
3947 		   new_state == IEEE80211_STA_NONE) {
3948 		ret = 0;
3949 	} else if (old_state == IEEE80211_STA_NONE &&
3950 		   new_state == IEEE80211_STA_NOTEXIST) {
3951 		if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) {
3952 			iwl_mvm_stop_session_protection(mvm, vif);
3953 			mvmvif->ap_sta = NULL;
3954 		}
3955 		ret = callbacks->rm_sta(mvm, vif, sta);
3956 		if (sta->tdls) {
3957 			iwl_mvm_recalc_tdls_state(mvm, vif, false);
3958 			iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3959 						   NL80211_TDLS_DISABLE_LINK);
3960 		}
3961 
3962 		if (unlikely(ret &&
3963 			     test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
3964 				      &mvm->status)))
3965 			ret = 0;
3966 	} else {
3967 		ret = -EIO;
3968 	}
3969  out_unlock:
3970 	mutex_unlock(&mvm->mutex);
3971 
3972 	if (sta->tdls && ret == 0) {
3973 		if (old_state == IEEE80211_STA_NOTEXIST &&
3974 		    new_state == IEEE80211_STA_NONE)
3975 			ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3976 		else if (old_state == IEEE80211_STA_NONE &&
3977 			 new_state == IEEE80211_STA_NOTEXIST)
3978 			ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3979 	}
3980 
3981 	return ret;
3982 }
3983 
iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw * hw,u32 value)3984 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3985 {
3986 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3987 
3988 	mvm->rts_threshold = value;
3989 
3990 	return 0;
3991 }
3992 
iwl_mvm_sta_rc_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u32 changed)3993 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3994 			   struct ieee80211_sta *sta, u32 changed)
3995 {
3996 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3997 
3998 	if (changed & (IEEE80211_RC_BW_CHANGED |
3999 		       IEEE80211_RC_SUPP_RATES_CHANGED |
4000 		       IEEE80211_RC_NSS_CHANGED))
4001 		iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4002 
4003 	if (vif->type == NL80211_IFTYPE_STATION &&
4004 	    changed & IEEE80211_RC_NSS_CHANGED)
4005 		iwl_mvm_sf_update(mvm, vif, false);
4006 }
4007 
iwl_mvm_mac_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,u16 ac,const struct ieee80211_tx_queue_params * params)4008 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
4009 			       struct ieee80211_vif *vif,
4010 			       unsigned int link_id, u16 ac,
4011 			       const struct ieee80211_tx_queue_params *params)
4012 {
4013 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4014 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4015 
4016 	mvmvif->deflink.queue_params[ac] = *params;
4017 
4018 	/*
4019 	 * No need to update right away, we'll get BSS_CHANGED_QOS
4020 	 * The exception is P2P_DEVICE interface which needs immediate update.
4021 	 */
4022 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
4023 		int ret;
4024 
4025 		mutex_lock(&mvm->mutex);
4026 		ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
4027 		mutex_unlock(&mvm->mutex);
4028 		return ret;
4029 	}
4030 	return 0;
4031 }
4032 
iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)4033 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
4034 				struct ieee80211_vif *vif,
4035 				struct ieee80211_prep_tx_info *info)
4036 {
4037 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4038 
4039 	mutex_lock(&mvm->mutex);
4040 	iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id);
4041 	mutex_unlock(&mvm->mutex);
4042 }
4043 
iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)4044 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw,
4045 				 struct ieee80211_vif *vif,
4046 				 struct ieee80211_prep_tx_info *info)
4047 {
4048 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4049 
4050 	/* for successful cases (auth/assoc), don't cancel session protection */
4051 	if (info->success)
4052 		return;
4053 
4054 	mutex_lock(&mvm->mutex);
4055 	iwl_mvm_stop_session_protection(mvm, vif);
4056 	mutex_unlock(&mvm->mutex);
4057 }
4058 
iwl_mvm_mac_sched_scan_start(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_sched_scan_request * req,struct ieee80211_scan_ies * ies)4059 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
4060 				 struct ieee80211_vif *vif,
4061 				 struct cfg80211_sched_scan_request *req,
4062 				 struct ieee80211_scan_ies *ies)
4063 {
4064 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4065 
4066 	int ret;
4067 
4068 	mutex_lock(&mvm->mutex);
4069 
4070 	if (!vif->cfg.idle) {
4071 		ret = -EBUSY;
4072 		goto out;
4073 	}
4074 
4075 	ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
4076 
4077 out:
4078 	mutex_unlock(&mvm->mutex);
4079 	return ret;
4080 }
4081 
iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw * hw,struct ieee80211_vif * vif)4082 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
4083 				struct ieee80211_vif *vif)
4084 {
4085 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4086 	int ret;
4087 
4088 	mutex_lock(&mvm->mutex);
4089 
4090 	/* Due to a race condition, it's possible that mac80211 asks
4091 	 * us to stop a sched_scan when it's already stopped.  This
4092 	 * can happen, for instance, if we stopped the scan ourselves,
4093 	 * called ieee80211_sched_scan_stopped() and the userspace called
4094 	 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
4095 	 * could run.  To handle this, simply return if the scan is
4096 	 * not running.
4097 	*/
4098 	if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
4099 		mutex_unlock(&mvm->mutex);
4100 		return 0;
4101 	}
4102 
4103 	ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
4104 	mutex_unlock(&mvm->mutex);
4105 	iwl_mvm_wait_for_async_handlers(mvm);
4106 
4107 	return ret;
4108 }
4109 
__iwl_mvm_mac_set_key(struct ieee80211_hw * hw,enum set_key_cmd cmd,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key)4110 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
4111 				 enum set_key_cmd cmd,
4112 				 struct ieee80211_vif *vif,
4113 				 struct ieee80211_sta *sta,
4114 				 struct ieee80211_key_conf *key)
4115 {
4116 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4117 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4118 	struct iwl_mvm_sta *mvmsta = NULL;
4119 	struct iwl_mvm_key_pn *ptk_pn = NULL;
4120 	int keyidx = key->keyidx;
4121 	u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);
4122 	u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);
4123 	int ret, i;
4124 	u8 key_offset;
4125 
4126 	if (sta)
4127 		mvmsta = iwl_mvm_sta_from_mac80211(sta);
4128 
4129 	switch (key->cipher) {
4130 	case WLAN_CIPHER_SUITE_TKIP:
4131 		if (!mvm->trans->trans_cfg->gen2) {
4132 			key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
4133 			key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
4134 		} else if (vif->type == NL80211_IFTYPE_STATION) {
4135 			key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE;
4136 		} else {
4137 			IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n");
4138 			return -EOPNOTSUPP;
4139 		}
4140 		break;
4141 	case WLAN_CIPHER_SUITE_CCMP:
4142 	case WLAN_CIPHER_SUITE_GCMP:
4143 	case WLAN_CIPHER_SUITE_GCMP_256:
4144 		if (!iwl_mvm_has_new_tx_api(mvm))
4145 			key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
4146 		break;
4147 	case WLAN_CIPHER_SUITE_AES_CMAC:
4148 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
4149 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
4150 		WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
4151 		break;
4152 	case WLAN_CIPHER_SUITE_WEP40:
4153 	case WLAN_CIPHER_SUITE_WEP104:
4154 		if (vif->type == NL80211_IFTYPE_STATION)
4155 			break;
4156 		if (iwl_mvm_has_new_tx_api(mvm))
4157 			return -EOPNOTSUPP;
4158 		/* support HW crypto on TX */
4159 		return 0;
4160 	default:
4161 		return -EOPNOTSUPP;
4162 	}
4163 
4164 	switch (cmd) {
4165 	case SET_KEY:
4166 		if (vif->type == NL80211_IFTYPE_STATION &&
4167 		    (keyidx == 6 || keyidx == 7))
4168 			rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6],
4169 					   key);
4170 
4171 		if ((vif->type == NL80211_IFTYPE_ADHOC ||
4172 		     vif->type == NL80211_IFTYPE_AP) && !sta) {
4173 			/*
4174 			 * GTK on AP interface is a TX-only key, return 0;
4175 			 * on IBSS they're per-station and because we're lazy
4176 			 * we don't support them for RX, so do the same.
4177 			 * CMAC/GMAC in AP/IBSS modes must be done in software
4178 			 * on older NICs.
4179 			 *
4180 			 * Except, of course, beacon protection - it must be
4181 			 * offloaded since we just set a beacon template, and
4182 			 * then we must also offload the IGTK (not just BIGTK)
4183 			 * for firmware reasons.
4184 			 *
4185 			 * So just check for beacon protection - if we don't
4186 			 * have it we cannot get here with keyidx >= 6, and
4187 			 * if we do have it we need to send the key to FW in
4188 			 * all cases (CMAC/GMAC).
4189 			 */
4190 			if (!wiphy_ext_feature_isset(hw->wiphy,
4191 						     NL80211_EXT_FEATURE_BEACON_PROTECTION) &&
4192 			    (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
4193 			     key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
4194 			     key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) {
4195 				ret = -EOPNOTSUPP;
4196 				break;
4197 			}
4198 
4199 			if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
4200 			    key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
4201 			    !iwl_mvm_has_new_tx_api(mvm)) {
4202 				key->hw_key_idx = STA_KEY_IDX_INVALID;
4203 				ret = 0;
4204 				break;
4205 			}
4206 
4207 			if (!mvmvif->ap_ibss_active) {
4208 				for (i = 0;
4209 				     i < ARRAY_SIZE(mvmvif->ap_early_keys);
4210 				     i++) {
4211 					if (!mvmvif->ap_early_keys[i]) {
4212 						mvmvif->ap_early_keys[i] = key;
4213 						break;
4214 					}
4215 				}
4216 
4217 				if (i >= ARRAY_SIZE(mvmvif->ap_early_keys))
4218 					ret = -ENOSPC;
4219 				else
4220 					ret = 0;
4221 
4222 				break;
4223 			}
4224 		}
4225 
4226 		/* During FW restart, in order to restore the state as it was,
4227 		 * don't try to reprogram keys we previously failed for.
4228 		 */
4229 		if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
4230 		    key->hw_key_idx == STA_KEY_IDX_INVALID) {
4231 			IWL_DEBUG_MAC80211(mvm,
4232 					   "skip invalid idx key programming during restart\n");
4233 			ret = 0;
4234 			break;
4235 		}
4236 
4237 		if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
4238 		    mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
4239 		    key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
4240 		    (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
4241 		     key->cipher == WLAN_CIPHER_SUITE_GCMP ||
4242 		     key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
4243 			struct ieee80211_key_seq seq;
4244 			int tid, q;
4245 
4246 			WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
4247 			ptk_pn = kzalloc(struct_size(ptk_pn, q,
4248 						     mvm->trans->num_rx_queues),
4249 					 GFP_KERNEL);
4250 			if (!ptk_pn) {
4251 				ret = -ENOMEM;
4252 				break;
4253 			}
4254 
4255 			for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
4256 				ieee80211_get_key_rx_seq(key, tid, &seq);
4257 				for (q = 0; q < mvm->trans->num_rx_queues; q++)
4258 					memcpy(ptk_pn->q[q].pn[tid],
4259 					       seq.ccmp.pn,
4260 					       IEEE80211_CCMP_PN_LEN);
4261 			}
4262 
4263 			rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
4264 		}
4265 
4266 		/* in HW restart reuse the index, otherwise request a new one */
4267 		if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
4268 			key_offset = key->hw_key_idx;
4269 		else
4270 			key_offset = STA_KEY_IDX_INVALID;
4271 
4272 		if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4273 			mvmsta->pairwise_cipher = key->cipher;
4274 
4275 		IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n",
4276 				   sta ? sta->addr : NULL, key->keyidx);
4277 
4278 		if (sec_key_ver)
4279 			ret = iwl_mvm_sec_key_add(mvm, vif, sta, key);
4280 		else
4281 			ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
4282 
4283 		if (ret) {
4284 			IWL_WARN(mvm, "set key failed\n");
4285 			key->hw_key_idx = STA_KEY_IDX_INVALID;
4286 			if (ptk_pn) {
4287 				RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
4288 				kfree(ptk_pn);
4289 			}
4290 			/*
4291 			 * can't add key for RX, but we don't need it
4292 			 * in the device for TX so still return 0,
4293 			 * unless we have new TX API where we cannot
4294 			 * put key material into the TX_CMD
4295 			 */
4296 			if (iwl_mvm_has_new_tx_api(mvm))
4297 				ret = -EOPNOTSUPP;
4298 			else
4299 				ret = 0;
4300 		}
4301 
4302 		break;
4303 	case DISABLE_KEY:
4304 		if (vif->type == NL80211_IFTYPE_STATION &&
4305 		    (keyidx == 6 || keyidx == 7))
4306 			RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6],
4307 					 NULL);
4308 
4309 		ret = -ENOENT;
4310 		for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
4311 			if (mvmvif->ap_early_keys[i] == key) {
4312 				mvmvif->ap_early_keys[i] = NULL;
4313 				ret = 0;
4314 			}
4315 		}
4316 
4317 		/* found in pending list - don't do anything else */
4318 		if (ret == 0)
4319 			break;
4320 
4321 		if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
4322 			ret = 0;
4323 			break;
4324 		}
4325 
4326 		if (mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
4327 		    key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
4328 		    (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
4329 		     key->cipher == WLAN_CIPHER_SUITE_GCMP ||
4330 		     key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
4331 			ptk_pn = rcu_dereference_protected(
4332 						mvmsta->ptk_pn[keyidx],
4333 						lockdep_is_held(&mvm->mutex));
4334 			RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
4335 			if (ptk_pn)
4336 				kfree_rcu(ptk_pn, rcu_head);
4337 		}
4338 
4339 		IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
4340 		if (sec_key_ver)
4341 			ret = iwl_mvm_sec_key_del(mvm, vif, sta, key);
4342 		else
4343 			ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
4344 		break;
4345 	default:
4346 		ret = -EINVAL;
4347 	}
4348 
4349 	return ret;
4350 }
4351 
iwl_mvm_mac_set_key(struct ieee80211_hw * hw,enum set_key_cmd cmd,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key)4352 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
4353 			struct ieee80211_vif *vif, struct ieee80211_sta *sta,
4354 			struct ieee80211_key_conf *key)
4355 {
4356 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4357 	int ret;
4358 
4359 	mutex_lock(&mvm->mutex);
4360 	ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key);
4361 	mutex_unlock(&mvm->mutex);
4362 
4363 	return ret;
4364 }
4365 
iwl_mvm_mac_update_tkip_key(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_key_conf * keyconf,struct ieee80211_sta * sta,u32 iv32,u16 * phase1key)4366 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
4367 				 struct ieee80211_vif *vif,
4368 				 struct ieee80211_key_conf *keyconf,
4369 				 struct ieee80211_sta *sta,
4370 				 u32 iv32, u16 *phase1key)
4371 {
4372 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4373 
4374 	if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
4375 		return;
4376 
4377 	iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
4378 }
4379 
4380 
iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data * notif_wait,struct iwl_rx_packet * pkt,void * data)4381 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
4382 			       struct iwl_rx_packet *pkt, void *data)
4383 {
4384 	struct iwl_mvm *mvm =
4385 		container_of(notif_wait, struct iwl_mvm, notif_wait);
4386 	struct iwl_hs20_roc_res *resp;
4387 	int resp_len = iwl_rx_packet_payload_len(pkt);
4388 	struct iwl_mvm_time_event_data *te_data = data;
4389 
4390 	if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
4391 		return true;
4392 
4393 	if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
4394 		IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
4395 		return true;
4396 	}
4397 
4398 	resp = (void *)pkt->data;
4399 
4400 	IWL_DEBUG_TE(mvm,
4401 		     "Aux ROC: Received response from ucode: status=%d uid=%d\n",
4402 		     resp->status, resp->event_unique_id);
4403 
4404 	te_data->uid = le32_to_cpu(resp->event_unique_id);
4405 	IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
4406 		     te_data->uid);
4407 
4408 	spin_lock_bh(&mvm->time_event_lock);
4409 	list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
4410 	spin_unlock_bh(&mvm->time_event_lock);
4411 
4412 	return true;
4413 }
4414 
4415 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
4416 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
4417 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
4418 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
4419 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
4420 
iwl_mvm_roc_duration_and_delay(struct ieee80211_vif * vif,u32 duration_ms,u32 * duration_tu,u32 * delay)4421 static void iwl_mvm_roc_duration_and_delay(struct ieee80211_vif *vif,
4422 					   u32 duration_ms,
4423 					   u32 *duration_tu,
4424 					   u32 *delay)
4425 {
4426 	u32 dtim_interval = vif->bss_conf.dtim_period *
4427 		vif->bss_conf.beacon_int;
4428 
4429 	*delay = AUX_ROC_MIN_DELAY;
4430 	*duration_tu = MSEC_TO_TU(duration_ms);
4431 
4432 	/*
4433 	 * If we are associated we want the delay time to be at least one
4434 	 * dtim interval so that the FW can wait until after the DTIM and
4435 	 * then start the time event, this will potentially allow us to
4436 	 * remain off-channel for the max duration.
4437 	 * Since we want to use almost a whole dtim interval we would also
4438 	 * like the delay to be for 2-3 dtim intervals, in case there are
4439 	 * other time events with higher priority.
4440 	 */
4441 	if (vif->cfg.assoc) {
4442 		*delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
4443 		/* We cannot remain off-channel longer than the DTIM interval */
4444 		if (dtim_interval <= *duration_tu) {
4445 			*duration_tu = dtim_interval - AUX_ROC_SAFETY_BUFFER;
4446 			if (*duration_tu <= AUX_ROC_MIN_DURATION)
4447 				*duration_tu = dtim_interval -
4448 					AUX_ROC_MIN_SAFETY_BUFFER;
4449 		}
4450 	}
4451 }
4452 
iwl_mvm_send_aux_roc_cmd(struct iwl_mvm * mvm,struct ieee80211_channel * channel,struct ieee80211_vif * vif,int duration)4453 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
4454 				    struct ieee80211_channel *channel,
4455 				    struct ieee80211_vif *vif,
4456 				    int duration)
4457 {
4458 	int res;
4459 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4460 	struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
4461 	static const u16 time_event_response[] = { HOT_SPOT_CMD };
4462 	struct iwl_notification_wait wait_time_event;
4463 	u32 req_dur, delay;
4464 	struct iwl_hs20_roc_req aux_roc_req = {
4465 		.action = cpu_to_le32(FW_CTXT_ACTION_ADD),
4466 		.id_and_color =
4467 			cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
4468 		.sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
4469 	};
4470 	struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm,
4471 		&aux_roc_req.channel_info);
4472 	u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm);
4473 
4474 	/* Set the channel info data */
4475 	iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value,
4476 			      iwl_mvm_phy_band_from_nl80211(channel->band),
4477 			      IWL_PHY_CHANNEL_MODE20,
4478 			      0);
4479 
4480 	/* Set the time and duration */
4481 	tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm));
4482 
4483 	iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay);
4484 	tail->duration = cpu_to_le32(req_dur);
4485 	tail->apply_time_max_delay = cpu_to_le32(delay);
4486 
4487 	IWL_DEBUG_TE(mvm,
4488 		     "ROC: Requesting to remain on channel %u for %ums\n",
4489 		     channel->hw_value, req_dur);
4490 	IWL_DEBUG_TE(mvm,
4491 		     "\t(requested = %ums, max_delay = %ums)\n",
4492 		     duration, delay);
4493 
4494 	/* Set the node address */
4495 	memcpy(tail->node_addr, vif->addr, ETH_ALEN);
4496 
4497 	lockdep_assert_held(&mvm->mutex);
4498 
4499 	spin_lock_bh(&mvm->time_event_lock);
4500 
4501 	if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
4502 		spin_unlock_bh(&mvm->time_event_lock);
4503 		return -EIO;
4504 	}
4505 
4506 	te_data->vif = vif;
4507 	te_data->duration = duration;
4508 	te_data->id = HOT_SPOT_CMD;
4509 
4510 	spin_unlock_bh(&mvm->time_event_lock);
4511 
4512 	/*
4513 	 * Use a notification wait, which really just processes the
4514 	 * command response and doesn't wait for anything, in order
4515 	 * to be able to process the response and get the UID inside
4516 	 * the RX path. Using CMD_WANT_SKB doesn't work because it
4517 	 * stores the buffer and then wakes up this thread, by which
4518 	 * time another notification (that the time event started)
4519 	 * might already be processed unsuccessfully.
4520 	 */
4521 	iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
4522 				   time_event_response,
4523 				   ARRAY_SIZE(time_event_response),
4524 				   iwl_mvm_rx_aux_roc, te_data);
4525 
4526 	res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len,
4527 				   &aux_roc_req);
4528 
4529 	if (res) {
4530 		IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
4531 		iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
4532 		goto out_clear_te;
4533 	}
4534 
4535 	/* No need to wait for anything, so just pass 1 (0 isn't valid) */
4536 	res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
4537 	/* should never fail */
4538 	WARN_ON_ONCE(res);
4539 
4540 	if (res) {
4541  out_clear_te:
4542 		spin_lock_bh(&mvm->time_event_lock);
4543 		iwl_mvm_te_clear_data(mvm, te_data);
4544 		spin_unlock_bh(&mvm->time_event_lock);
4545 	}
4546 
4547 	return res;
4548 }
4549 
iwl_mvm_roc_add_cmd(struct iwl_mvm * mvm,struct ieee80211_channel * channel,struct ieee80211_vif * vif,int duration,u32 activity)4550 static int iwl_mvm_roc_add_cmd(struct iwl_mvm *mvm,
4551 			       struct ieee80211_channel *channel,
4552 			       struct ieee80211_vif *vif,
4553 			       int duration, u32 activity)
4554 {
4555 	int res;
4556 	u32 duration_tu, delay;
4557 	struct iwl_roc_req roc_req = {
4558 		.action = cpu_to_le32(FW_CTXT_ACTION_ADD),
4559 		.activity = cpu_to_le32(activity),
4560 		.sta_id = cpu_to_le32(mvm->aux_sta.sta_id),
4561 	};
4562 
4563 	lockdep_assert_held(&mvm->mutex);
4564 
4565 	/* Set the channel info data */
4566 	iwl_mvm_set_chan_info(mvm, &roc_req.channel_info,
4567 			      channel->hw_value,
4568 			      iwl_mvm_phy_band_from_nl80211(channel->band),
4569 			      IWL_PHY_CHANNEL_MODE20, 0);
4570 
4571 	iwl_mvm_roc_duration_and_delay(vif, duration, &duration_tu,
4572 				       &delay);
4573 	roc_req.duration = cpu_to_le32(duration_tu);
4574 	roc_req.max_delay = cpu_to_le32(delay);
4575 
4576 	IWL_DEBUG_TE(mvm,
4577 		     "\t(requested = %ums, max_delay = %ums)\n",
4578 		     duration, delay);
4579 	IWL_DEBUG_TE(mvm,
4580 		     "Requesting to remain on channel %u for %utu\n",
4581 		     channel->hw_value, duration_tu);
4582 
4583 	/* Set the node address */
4584 	memcpy(roc_req.node_addr, vif->addr, ETH_ALEN);
4585 
4586 	res = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(MAC_CONF_GROUP, ROC_CMD),
4587 				   0, sizeof(roc_req), &roc_req);
4588 
4589 	return res;
4590 }
4591 
iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm * mvm,u32 lmac_id)4592 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id)
4593 {
4594 	int ret = 0;
4595 
4596 	lockdep_assert_held(&mvm->mutex);
4597 
4598 	if (!fw_has_capa(&mvm->fw->ucode_capa,
4599 			 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
4600 		IWL_ERR(mvm, "hotspot not supported\n");
4601 		return -EINVAL;
4602 	}
4603 
4604 	if (iwl_mvm_has_new_station_api(mvm->fw)) {
4605 		ret = iwl_mvm_add_aux_sta(mvm, lmac_id);
4606 		WARN(ret, "Failed to allocate aux station");
4607 	}
4608 
4609 	return ret;
4610 }
4611 
iwl_mvm_roc_link(struct iwl_mvm * mvm,struct ieee80211_vif * vif)4612 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
4613 {
4614 	int ret;
4615 
4616 	lockdep_assert_held(&mvm->mutex);
4617 
4618 	ret = iwl_mvm_binding_add_vif(mvm, vif);
4619 	if (WARN(ret, "Failed binding P2P_DEVICE\n"))
4620 		return ret;
4621 
4622 	/* The station and queue allocation must be done only after the binding
4623 	 * is done, as otherwise the FW might incorrectly configure its state.
4624 	 */
4625 	return iwl_mvm_add_p2p_bcast_sta(mvm, vif);
4626 }
4627 
iwl_mvm_roc(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * channel,int duration,enum ieee80211_roc_type type)4628 static int iwl_mvm_roc(struct ieee80211_hw *hw,
4629 		       struct ieee80211_vif *vif,
4630 		       struct ieee80211_channel *channel,
4631 		       int duration,
4632 		       enum ieee80211_roc_type type)
4633 {
4634 	static const struct iwl_mvm_roc_ops ops = {
4635 		.add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20,
4636 		.link = iwl_mvm_roc_link,
4637 	};
4638 
4639 	return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops);
4640 }
4641 
iwl_mvm_roc_station(struct iwl_mvm * mvm,struct ieee80211_channel * channel,struct ieee80211_vif * vif,int duration)4642 static int iwl_mvm_roc_station(struct iwl_mvm *mvm,
4643 			       struct ieee80211_channel *channel,
4644 			       struct ieee80211_vif *vif,
4645 			       int duration)
4646 {
4647 	int ret;
4648 	u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD);
4649 	u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
4650 					  IWL_FW_CMD_VER_UNKNOWN);
4651 
4652 	if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) {
4653 		ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration);
4654 	} else if (fw_ver == 3) {
4655 		ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration,
4656 					  ROC_ACTIVITY_HOTSPOT);
4657 	} else {
4658 		ret = -EOPNOTSUPP;
4659 		IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver);
4660 	}
4661 
4662 	return ret;
4663 }
4664 
iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel * channel)4665 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm,
4666 				     struct ieee80211_vif *vif,
4667 				     struct ieee80211_channel *channel)
4668 {
4669 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4670 	struct cfg80211_chan_def chandef;
4671 	int i;
4672 
4673 	lockdep_assert_held(&mvm->mutex);
4674 
4675 	if (mvmvif->deflink.phy_ctxt &&
4676 	    channel == mvmvif->deflink.phy_ctxt->channel)
4677 		return 0;
4678 
4679 	/* Try using a PHY context that is already in use */
4680 	for (i = 0; i < NUM_PHY_CTX; i++) {
4681 		struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i];
4682 
4683 		if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt)
4684 			continue;
4685 
4686 		if (channel == phy_ctxt->channel) {
4687 			if (mvmvif->deflink.phy_ctxt)
4688 				iwl_mvm_phy_ctxt_unref(mvm,
4689 						       mvmvif->deflink.phy_ctxt);
4690 
4691 			mvmvif->deflink.phy_ctxt = phy_ctxt;
4692 			iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt);
4693 			return 0;
4694 		}
4695 	}
4696 
4697 	/* We already have a phy_ctxt, but it's not on the right channel */
4698 	if (mvmvif->deflink.phy_ctxt)
4699 		iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);
4700 
4701 	mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
4702 	if (!mvmvif->deflink.phy_ctxt)
4703 		return -ENOSPC;
4704 
4705 	cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
4706 
4707 	return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt,
4708 				    &chandef, 1, 1);
4709 }
4710 
4711 /* Execute the common part for MLD and non-MLD modes */
iwl_mvm_roc_common(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * channel,int duration,enum ieee80211_roc_type type,const struct iwl_mvm_roc_ops * ops)4712 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4713 		       struct ieee80211_channel *channel, int duration,
4714 		       enum ieee80211_roc_type type,
4715 		       const struct iwl_mvm_roc_ops *ops)
4716 {
4717 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4718 	u32 lmac_id;
4719 	int ret;
4720 
4721 	IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
4722 			   duration, type);
4723 
4724 	/*
4725 	 * Flush the done work, just in case it's still pending, so that
4726 	 * the work it does can complete and we can accept new frames.
4727 	 */
4728 	flush_work(&mvm->roc_done_wk);
4729 
4730 	mutex_lock(&mvm->mutex);
4731 
4732 	switch (vif->type) {
4733 	case NL80211_IFTYPE_STATION:
4734 		lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band);
4735 
4736 		/* Use aux roc framework (HS20) */
4737 		ret = ops->add_aux_sta_for_hs20(mvm, lmac_id);
4738 		if (!ret)
4739 			ret = iwl_mvm_roc_station(mvm, channel, vif, duration);
4740 		goto out_unlock;
4741 	case NL80211_IFTYPE_P2P_DEVICE:
4742 		/* handle below */
4743 		break;
4744 	default:
4745 		IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type);
4746 		ret = -EINVAL;
4747 		goto out_unlock;
4748 	}
4749 
4750 
4751 	ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel);
4752 	if (ret)
4753 		goto out_unlock;
4754 
4755 	ret = ops->link(mvm, vif);
4756 	if (ret)
4757 		goto out_unlock;
4758 
4759 	ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
4760 out_unlock:
4761 	mutex_unlock(&mvm->mutex);
4762 	IWL_DEBUG_MAC80211(mvm, "leave\n");
4763 	return ret;
4764 }
4765 
iwl_mvm_cancel_roc(struct ieee80211_hw * hw,struct ieee80211_vif * vif)4766 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw,
4767 		       struct ieee80211_vif *vif)
4768 {
4769 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4770 
4771 	IWL_DEBUG_MAC80211(mvm, "enter\n");
4772 
4773 	mutex_lock(&mvm->mutex);
4774 	iwl_mvm_stop_roc(mvm, vif);
4775 	mutex_unlock(&mvm->mutex);
4776 
4777 	IWL_DEBUG_MAC80211(mvm, "leave\n");
4778 	return 0;
4779 }
4780 
4781 struct iwl_mvm_ftm_responder_iter_data {
4782 	bool responder;
4783 	struct ieee80211_chanctx_conf *ctx;
4784 };
4785 
iwl_mvm_ftm_responder_chanctx_iter(void * _data,u8 * mac,struct ieee80211_vif * vif)4786 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac,
4787 					       struct ieee80211_vif *vif)
4788 {
4789 	struct iwl_mvm_ftm_responder_iter_data *data = _data;
4790 
4791 	if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx &&
4792 	    vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params)
4793 		data->responder = true;
4794 }
4795 
iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm * mvm,struct ieee80211_chanctx_conf * ctx)4796 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm,
4797 					     struct ieee80211_chanctx_conf *ctx)
4798 {
4799 	struct iwl_mvm_ftm_responder_iter_data data = {
4800 		.responder = false,
4801 		.ctx = ctx,
4802 	};
4803 
4804 	ieee80211_iterate_active_interfaces_atomic(mvm->hw,
4805 					IEEE80211_IFACE_ITER_NORMAL,
4806 					iwl_mvm_ftm_responder_chanctx_iter,
4807 					&data);
4808 	return data.responder;
4809 }
4810 
__iwl_mvm_add_chanctx(struct iwl_mvm * mvm,struct ieee80211_chanctx_conf * ctx)4811 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
4812 				 struct ieee80211_chanctx_conf *ctx)
4813 {
4814 	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4815 	struct iwl_mvm_phy_ctxt *phy_ctxt;
4816 	bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) ||
4817 		iwl_mvm_enable_fils(mvm, ctx);
4818 	struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def;
4819 	int ret;
4820 
4821 	lockdep_assert_held(&mvm->mutex);
4822 
4823 	IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
4824 
4825 	phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
4826 	if (!phy_ctxt) {
4827 		ret = -ENOSPC;
4828 		goto out;
4829 	}
4830 
4831 	ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def,
4832 				   ctx->rx_chains_static,
4833 				   ctx->rx_chains_dynamic);
4834 	if (ret) {
4835 		IWL_ERR(mvm, "Failed to add PHY context\n");
4836 		goto out;
4837 	}
4838 
4839 	*phy_ctxt_id = phy_ctxt->id;
4840 out:
4841 	return ret;
4842 }
4843 
iwl_mvm_add_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)4844 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
4845 			struct ieee80211_chanctx_conf *ctx)
4846 {
4847 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4848 	int ret;
4849 
4850 	mutex_lock(&mvm->mutex);
4851 	ret = __iwl_mvm_add_chanctx(mvm, ctx);
4852 	mutex_unlock(&mvm->mutex);
4853 
4854 	return ret;
4855 }
4856 
__iwl_mvm_remove_chanctx(struct iwl_mvm * mvm,struct ieee80211_chanctx_conf * ctx)4857 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
4858 				     struct ieee80211_chanctx_conf *ctx)
4859 {
4860 	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4861 	struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4862 
4863 	lockdep_assert_held(&mvm->mutex);
4864 
4865 	iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
4866 }
4867 
iwl_mvm_remove_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)4868 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
4869 			    struct ieee80211_chanctx_conf *ctx)
4870 {
4871 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4872 
4873 	mutex_lock(&mvm->mutex);
4874 	__iwl_mvm_remove_chanctx(mvm, ctx);
4875 	mutex_unlock(&mvm->mutex);
4876 }
4877 
iwl_mvm_change_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx,u32 changed)4878 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
4879 			    struct ieee80211_chanctx_conf *ctx, u32 changed)
4880 {
4881 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4882 	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4883 	struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4884 	bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) ||
4885 		iwl_mvm_enable_fils(mvm, ctx);
4886 	struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def;
4887 
4888 	if (WARN_ONCE((phy_ctxt->ref > 1) &&
4889 		      (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
4890 				   IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
4891 				   IEEE80211_CHANCTX_CHANGE_RADAR |
4892 				   IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
4893 		      "Cannot change PHY. Ref=%d, changed=0x%X\n",
4894 		      phy_ctxt->ref, changed))
4895 		return;
4896 
4897 	mutex_lock(&mvm->mutex);
4898 
4899 	/* we are only changing the min_width, may be a noop */
4900 	if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) {
4901 		if (phy_ctxt->width == def->width)
4902 			goto out_unlock;
4903 
4904 		/* we are just toggling between 20_NOHT and 20 */
4905 		if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&
4906 		    def->width <= NL80211_CHAN_WIDTH_20)
4907 			goto out_unlock;
4908 	}
4909 
4910 	iwl_mvm_bt_coex_vif_change(mvm);
4911 	iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def,
4912 				 ctx->rx_chains_static,
4913 				 ctx->rx_chains_dynamic);
4914 
4915 out_unlock:
4916 	mutex_unlock(&mvm->mutex);
4917 }
4918 
4919 /*
4920  * This function executes the common part for MLD and non-MLD modes.
4921  *
4922  * Returns true if we're done assigning the chanctx
4923  * (either on failure or success)
4924  */
4925 static bool
__iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_chanctx_conf * ctx,bool switching_chanctx,int * ret)4926 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm,
4927 				    struct ieee80211_vif *vif,
4928 				    struct ieee80211_chanctx_conf *ctx,
4929 				    bool switching_chanctx, int *ret)
4930 {
4931 	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4932 	struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4933 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4934 
4935 	lockdep_assert_held(&mvm->mutex);
4936 
4937 	mvmvif->deflink.phy_ctxt = phy_ctxt;
4938 
4939 	switch (vif->type) {
4940 	case NL80211_IFTYPE_AP:
4941 		/* only needed if we're switching chanctx (i.e. during CSA) */
4942 		if (switching_chanctx) {
4943 			mvmvif->ap_ibss_active = true;
4944 			break;
4945 		}
4946 		fallthrough;
4947 	case NL80211_IFTYPE_ADHOC:
4948 		/*
4949 		 * The AP binding flow is handled as part of the start_ap flow
4950 		 * (in bss_info_changed), similarly for IBSS.
4951 		 */
4952 		*ret = 0;
4953 		return true;
4954 	case NL80211_IFTYPE_STATION:
4955 		break;
4956 	case NL80211_IFTYPE_MONITOR:
4957 		/* always disable PS when a monitor interface is active */
4958 		mvmvif->ps_disabled = true;
4959 		break;
4960 	default:
4961 		*ret = -EINVAL;
4962 		return true;
4963 	}
4964 	return false;
4965 }
4966 
__iwl_mvm_assign_vif_chanctx(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx,bool switching_chanctx)4967 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
4968 					struct ieee80211_vif *vif,
4969 					struct ieee80211_bss_conf *link_conf,
4970 					struct ieee80211_chanctx_conf *ctx,
4971 					bool switching_chanctx)
4972 {
4973 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4974 	int ret;
4975 
4976 	if (WARN_ON(!link_conf))
4977 		return -EINVAL;
4978 
4979 	if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx,
4980 						switching_chanctx, &ret))
4981 		goto out;
4982 
4983 	ret = iwl_mvm_binding_add_vif(mvm, vif);
4984 	if (ret)
4985 		goto out;
4986 
4987 	/*
4988 	 * Power state must be updated before quotas,
4989 	 * otherwise fw will complain.
4990 	 */
4991 	iwl_mvm_power_update_mac(mvm);
4992 
4993 	/* Setting the quota at this stage is only required for monitor
4994 	 * interfaces. For the other types, the bss_info changed flow
4995 	 * will handle quota settings.
4996 	 */
4997 	if (vif->type == NL80211_IFTYPE_MONITOR) {
4998 		mvmvif->monitor_active = true;
4999 		ret = iwl_mvm_update_quotas(mvm, false, NULL);
5000 		if (ret)
5001 			goto out_remove_binding;
5002 
5003 		ret = iwl_mvm_add_snif_sta(mvm, vif);
5004 		if (ret)
5005 			goto out_remove_binding;
5006 
5007 	}
5008 
5009 	/* Handle binding during CSA */
5010 	if (vif->type == NL80211_IFTYPE_AP) {
5011 		iwl_mvm_update_quotas(mvm, false, NULL);
5012 		iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
5013 	}
5014 
5015 	if (vif->type == NL80211_IFTYPE_STATION) {
5016 		if (!switching_chanctx) {
5017 			mvmvif->csa_bcn_pending = false;
5018 			goto out;
5019 		}
5020 
5021 		mvmvif->csa_bcn_pending = true;
5022 
5023 		if (!fw_has_capa(&mvm->fw->ucode_capa,
5024 				 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
5025 			u32 duration = 5 * vif->bss_conf.beacon_int;
5026 
5027 			/* Protect the session to make sure we hear the first
5028 			 * beacon on the new channel.
5029 			 */
5030 			iwl_mvm_protect_session(mvm, vif, duration, duration,
5031 						vif->bss_conf.beacon_int / 2,
5032 						true);
5033 		}
5034 
5035 		iwl_mvm_update_quotas(mvm, false, NULL);
5036 	}
5037 
5038 	goto out;
5039 
5040 out_remove_binding:
5041 	iwl_mvm_binding_remove_vif(mvm, vif);
5042 	iwl_mvm_power_update_mac(mvm);
5043 out:
5044 	if (ret)
5045 		mvmvif->deflink.phy_ctxt = NULL;
5046 	return ret;
5047 }
5048 
iwl_mvm_assign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)5049 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
5050 				      struct ieee80211_vif *vif,
5051 				      struct ieee80211_bss_conf *link_conf,
5052 				      struct ieee80211_chanctx_conf *ctx)
5053 {
5054 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5055 	int ret;
5056 
5057 	mutex_lock(&mvm->mutex);
5058 	ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false);
5059 	mutex_unlock(&mvm->mutex);
5060 
5061 	return ret;
5062 }
5063 
5064 /*
5065  * This function executes the common part for MLD and non-MLD modes.
5066  *
5067  * Returns if chanctx unassign chanctx is done
5068  * (either on failure or success)
5069  */
__iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool switching_chanctx)5070 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm,
5071 						  struct ieee80211_vif *vif,
5072 						  bool switching_chanctx)
5073 {
5074 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5075 
5076 	lockdep_assert_held(&mvm->mutex);
5077 	iwl_mvm_remove_time_event(mvm, mvmvif,
5078 				  &mvmvif->time_event_data);
5079 
5080 	switch (vif->type) {
5081 	case NL80211_IFTYPE_ADHOC:
5082 		return true;
5083 	case NL80211_IFTYPE_MONITOR:
5084 		mvmvif->monitor_active = false;
5085 		mvmvif->ps_disabled = false;
5086 		break;
5087 	case NL80211_IFTYPE_AP:
5088 		/* This part is triggered only during CSA */
5089 		if (!switching_chanctx || !mvmvif->ap_ibss_active)
5090 			return true;
5091 
5092 		mvmvif->csa_countdown = false;
5093 
5094 		/* Set CS bit on all the stations */
5095 		iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
5096 
5097 		/* Save blocked iface, the timeout is set on the next beacon */
5098 		rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
5099 
5100 		mvmvif->ap_ibss_active = false;
5101 		break;
5102 	default:
5103 		break;
5104 	}
5105 	return false;
5106 }
5107 
__iwl_mvm_unassign_vif_chanctx(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx,bool switching_chanctx)5108 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
5109 					   struct ieee80211_vif *vif,
5110 					   struct ieee80211_bss_conf *link_conf,
5111 					   struct ieee80211_chanctx_conf *ctx,
5112 					   bool switching_chanctx)
5113 {
5114 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5115 	struct ieee80211_vif *disabled_vif = NULL;
5116 
5117 	if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx))
5118 		goto out;
5119 
5120 	if (vif->type == NL80211_IFTYPE_MONITOR)
5121 		iwl_mvm_rm_snif_sta(mvm, vif);
5122 
5123 
5124 	if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) {
5125 		disabled_vif = vif;
5126 		if (!fw_has_capa(&mvm->fw->ucode_capa,
5127 				 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
5128 			iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
5129 	}
5130 
5131 	iwl_mvm_update_quotas(mvm, false, disabled_vif);
5132 	iwl_mvm_binding_remove_vif(mvm, vif);
5133 
5134 out:
5135 	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) &&
5136 	    switching_chanctx)
5137 		return;
5138 	mvmvif->deflink.phy_ctxt = NULL;
5139 	iwl_mvm_power_update_mac(mvm);
5140 }
5141 
iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)5142 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
5143 					 struct ieee80211_vif *vif,
5144 					 struct ieee80211_bss_conf *link_conf,
5145 					 struct ieee80211_chanctx_conf *ctx)
5146 {
5147 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5148 
5149 	mutex_lock(&mvm->mutex);
5150 	__iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false);
5151 	mutex_unlock(&mvm->mutex);
5152 }
5153 
5154 static int
iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm * mvm,struct ieee80211_vif_chanctx_switch * vifs,const struct iwl_mvm_switch_vif_chanctx_ops * ops)5155 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
5156 				struct ieee80211_vif_chanctx_switch *vifs,
5157 				const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5158 {
5159 	int ret;
5160 
5161 	mutex_lock(&mvm->mutex);
5162 	ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5163 				    vifs[0].old_ctx, true);
5164 	__iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
5165 
5166 	ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
5167 	if (ret) {
5168 		IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
5169 		goto out_reassign;
5170 	}
5171 
5172 	ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5173 					vifs[0].new_ctx, true);
5174 	if (ret) {
5175 		IWL_ERR(mvm,
5176 			"failed to assign new_ctx during channel switch\n");
5177 		goto out_remove;
5178 	}
5179 
5180 	/* we don't support TDLS during DCM - can be caused by channel switch */
5181 	if (iwl_mvm_phy_ctx_count(mvm) > 1)
5182 		iwl_mvm_teardown_tdls_peers(mvm);
5183 
5184 	goto out;
5185 
5186 out_remove:
5187 	__iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
5188 
5189 out_reassign:
5190 	if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
5191 		IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
5192 		goto out_restart;
5193 	}
5194 
5195 	if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5196 				      vifs[0].old_ctx, true)) {
5197 		IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
5198 		goto out_restart;
5199 	}
5200 
5201 	goto out;
5202 
5203 out_restart:
5204 	/* things keep failing, better restart the hw */
5205 	iwl_mvm_nic_restart(mvm, false);
5206 
5207 out:
5208 	mutex_unlock(&mvm->mutex);
5209 
5210 	return ret;
5211 }
5212 
5213 static int
iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm * mvm,struct ieee80211_vif_chanctx_switch * vifs,const struct iwl_mvm_switch_vif_chanctx_ops * ops)5214 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
5215 				    struct ieee80211_vif_chanctx_switch *vifs,
5216 				    const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5217 {
5218 	int ret;
5219 
5220 	mutex_lock(&mvm->mutex);
5221 	ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5222 				    vifs[0].old_ctx, true);
5223 
5224 	ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5225 					vifs[0].new_ctx, true);
5226 	if (ret) {
5227 		IWL_ERR(mvm,
5228 			"failed to assign new_ctx during channel switch\n");
5229 		goto out_reassign;
5230 	}
5231 
5232 	goto out;
5233 
5234 out_reassign:
5235 	if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5236 				      vifs[0].old_ctx, true)) {
5237 		IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
5238 		goto out_restart;
5239 	}
5240 
5241 	goto out;
5242 
5243 out_restart:
5244 	/* things keep failing, better restart the hw */
5245 	iwl_mvm_nic_restart(mvm, false);
5246 
5247 out:
5248 	mutex_unlock(&mvm->mutex);
5249 
5250 	return ret;
5251 }
5252 
5253 /* Execute the common part for both MLD and non-MLD modes */
5254 int
iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw * hw,struct ieee80211_vif_chanctx_switch * vifs,int n_vifs,enum ieee80211_chanctx_switch_mode mode,const struct iwl_mvm_switch_vif_chanctx_ops * ops)5255 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw,
5256 				  struct ieee80211_vif_chanctx_switch *vifs,
5257 				  int n_vifs,
5258 				  enum ieee80211_chanctx_switch_mode mode,
5259 				  const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5260 {
5261 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5262 	int ret;
5263 
5264 	/* we only support a single-vif right now */
5265 	if (n_vifs > 1)
5266 		return -EOPNOTSUPP;
5267 
5268 	switch (mode) {
5269 	case CHANCTX_SWMODE_SWAP_CONTEXTS:
5270 		ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops);
5271 		break;
5272 	case CHANCTX_SWMODE_REASSIGN_VIF:
5273 		ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops);
5274 		break;
5275 	default:
5276 		ret = -EOPNOTSUPP;
5277 		break;
5278 	}
5279 
5280 	return ret;
5281 }
5282 
iwl_mvm_switch_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif_chanctx_switch * vifs,int n_vifs,enum ieee80211_chanctx_switch_mode mode)5283 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
5284 				      struct ieee80211_vif_chanctx_switch *vifs,
5285 				      int n_vifs,
5286 				      enum ieee80211_chanctx_switch_mode mode)
5287 {
5288 	static const struct iwl_mvm_switch_vif_chanctx_ops ops = {
5289 		.__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx,
5290 		.__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx,
5291 	};
5292 
5293 	return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops);
5294 }
5295 
iwl_mvm_tx_last_beacon(struct ieee80211_hw * hw)5296 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
5297 {
5298 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5299 
5300 	return mvm->ibss_manager;
5301 }
5302 
iwl_mvm_set_tim(struct ieee80211_hw * hw,struct ieee80211_sta * sta,bool set)5303 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
5304 			   bool set)
5305 {
5306 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5307 	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
5308 
5309 	if (!mvm_sta || !mvm_sta->vif) {
5310 		IWL_ERR(mvm, "Station is not associated to a vif\n");
5311 		return -EINVAL;
5312 	}
5313 
5314 	return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif,
5315 					       &mvm_sta->vif->bss_conf);
5316 }
5317 
5318 #ifdef CONFIG_NL80211_TESTMODE
5319 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
5320 	[IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
5321 	[IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
5322 	[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
5323 };
5324 
__iwl_mvm_mac_testmode_cmd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,void * data,int len)5325 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
5326 				      struct ieee80211_vif *vif,
5327 				      void *data, int len)
5328 {
5329 	struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
5330 	int err;
5331 	u32 noa_duration;
5332 
5333 	err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len,
5334 				   iwl_mvm_tm_policy, NULL);
5335 	if (err)
5336 		return err;
5337 
5338 	if (!tb[IWL_MVM_TM_ATTR_CMD])
5339 		return -EINVAL;
5340 
5341 	switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
5342 	case IWL_MVM_TM_CMD_SET_NOA:
5343 		if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
5344 		    !vif->bss_conf.enable_beacon ||
5345 		    !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
5346 			return -EINVAL;
5347 
5348 		noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
5349 		if (noa_duration >= vif->bss_conf.beacon_int)
5350 			return -EINVAL;
5351 
5352 		mvm->noa_duration = noa_duration;
5353 		mvm->noa_vif = vif;
5354 
5355 		return iwl_mvm_update_quotas(mvm, true, NULL);
5356 	case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
5357 		/* must be associated client vif - ignore authorized */
5358 		if (!vif || vif->type != NL80211_IFTYPE_STATION ||
5359 		    !vif->cfg.assoc || !vif->bss_conf.dtim_period ||
5360 		    !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
5361 			return -EINVAL;
5362 
5363 		if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
5364 			return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
5365 		return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
5366 	}
5367 
5368 	return -EOPNOTSUPP;
5369 }
5370 
iwl_mvm_mac_testmode_cmd(struct ieee80211_hw * hw,struct ieee80211_vif * vif,void * data,int len)5371 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
5372 			     struct ieee80211_vif *vif,
5373 			     void *data, int len)
5374 {
5375 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5376 	int err;
5377 
5378 	mutex_lock(&mvm->mutex);
5379 	err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
5380 	mutex_unlock(&mvm->mutex);
5381 
5382 	return err;
5383 }
5384 #endif
5385 
iwl_mvm_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5386 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5387 			    struct ieee80211_channel_switch *chsw)
5388 {
5389 	/* By implementing this operation, we prevent mac80211 from
5390 	 * starting its own channel switch timer, so that we can call
5391 	 * ieee80211_chswitch_done() ourselves at the right time
5392 	 * (which is when the absence time event starts).
5393 	 */
5394 
5395 	IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
5396 			   "dummy channel switch op\n");
5397 }
5398 
iwl_mvm_schedule_client_csa(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5399 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm,
5400 				       struct ieee80211_vif *vif,
5401 				       struct ieee80211_channel_switch *chsw)
5402 {
5403 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5404 	struct iwl_chan_switch_te_cmd cmd = {
5405 		.mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
5406 							  mvmvif->color)),
5407 		.action = cpu_to_le32(FW_CTXT_ACTION_ADD),
5408 		.tsf = cpu_to_le32(chsw->timestamp),
5409 		.cs_count = chsw->count,
5410 		.cs_mode = chsw->block_tx,
5411 	};
5412 
5413 	lockdep_assert_held(&mvm->mutex);
5414 
5415 	if (chsw->delay)
5416 		cmd.cs_delayed_bcn_count =
5417 			DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int);
5418 
5419 	return iwl_mvm_send_cmd_pdu(mvm,
5420 				    WIDE_ID(MAC_CONF_GROUP,
5421 					    CHANNEL_SWITCH_TIME_EVENT_CMD),
5422 				    0, sizeof(cmd), &cmd);
5423 }
5424 
iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5425 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm,
5426 				       struct ieee80211_vif *vif,
5427 				       struct ieee80211_channel_switch *chsw)
5428 {
5429 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5430 	u32 apply_time;
5431 
5432 	/* Schedule the time event to a bit before beacon 1,
5433 	 * to make sure we're in the new channel when the
5434 	 * GO/AP arrives. In case count <= 1 immediately schedule the
5435 	 * TE (this might result with some packet loss or connection
5436 	 * loss).
5437 	 */
5438 	if (chsw->count <= 1)
5439 		apply_time = 0;
5440 	else
5441 		apply_time = chsw->device_timestamp +
5442 			((vif->bss_conf.beacon_int * (chsw->count - 1) -
5443 			  IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
5444 
5445 	if (chsw->block_tx)
5446 		iwl_mvm_csa_client_absent(mvm, vif);
5447 
5448 	if (mvmvif->bf_data.bf_enabled) {
5449 		int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
5450 
5451 		if (ret)
5452 			return ret;
5453 	}
5454 
5455 	iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
5456 				    apply_time);
5457 
5458 	return 0;
5459 }
5460 
5461 #define IWL_MAX_CSA_BLOCK_TX 1500
iwl_mvm_pre_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5462 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
5463 			       struct ieee80211_vif *vif,
5464 			       struct ieee80211_channel_switch *chsw)
5465 {
5466 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5467 	struct ieee80211_vif *csa_vif;
5468 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5469 	int ret;
5470 
5471 	mutex_lock(&mvm->mutex);
5472 
5473 	mvmvif->csa_failed = false;
5474 
5475 	IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
5476 			   chsw->chandef.center_freq1);
5477 
5478 	iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
5479 				       ieee80211_vif_to_wdev(vif),
5480 				       FW_DBG_TRIGGER_CHANNEL_SWITCH);
5481 
5482 	switch (vif->type) {
5483 	case NL80211_IFTYPE_AP:
5484 		csa_vif =
5485 			rcu_dereference_protected(mvm->csa_vif,
5486 						  lockdep_is_held(&mvm->mutex));
5487 		if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active,
5488 			      "Another CSA is already in progress")) {
5489 			ret = -EBUSY;
5490 			goto out_unlock;
5491 		}
5492 
5493 		/* we still didn't unblock tx. prevent new CS meanwhile */
5494 		if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
5495 					      lockdep_is_held(&mvm->mutex))) {
5496 			ret = -EBUSY;
5497 			goto out_unlock;
5498 		}
5499 
5500 		rcu_assign_pointer(mvm->csa_vif, vif);
5501 
5502 		if (WARN_ONCE(mvmvif->csa_countdown,
5503 			      "Previous CSA countdown didn't complete")) {
5504 			ret = -EBUSY;
5505 			goto out_unlock;
5506 		}
5507 
5508 		mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
5509 
5510 		break;
5511 	case NL80211_IFTYPE_STATION:
5512 		/*
5513 		 * In the new flow FW is in charge of timing the switch so there
5514 		 * is no need for all of this
5515 		 */
5516 		if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
5517 					    CHANNEL_SWITCH_ERROR_NOTIF,
5518 					    0))
5519 			break;
5520 
5521 		/*
5522 		 * We haven't configured the firmware to be associated yet since
5523 		 * we don't know the dtim period. In this case, the firmware can't
5524 		 * track the beacons.
5525 		 */
5526 		if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) {
5527 			ret = -EBUSY;
5528 			goto out_unlock;
5529 		}
5530 
5531 		if (chsw->delay > IWL_MAX_CSA_BLOCK_TX &&
5532 		    hweight16(vif->valid_links) <= 1)
5533 			schedule_delayed_work(&mvmvif->csa_work, 0);
5534 
5535 		if (chsw->block_tx) {
5536 			/*
5537 			 * In case of undetermined / long time with immediate
5538 			 * quiet monitor status to gracefully disconnect
5539 			 */
5540 			if (!chsw->count ||
5541 			    chsw->count * vif->bss_conf.beacon_int >
5542 			    IWL_MAX_CSA_BLOCK_TX)
5543 				schedule_delayed_work(&mvmvif->csa_work,
5544 						      msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX));
5545 		}
5546 
5547 		if (!fw_has_capa(&mvm->fw->ucode_capa,
5548 				 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
5549 			ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw);
5550 			if (ret)
5551 				goto out_unlock;
5552 		} else {
5553 			iwl_mvm_schedule_client_csa(mvm, vif, chsw);
5554 		}
5555 
5556 		mvmvif->csa_count = chsw->count;
5557 		mvmvif->csa_misbehave = false;
5558 		break;
5559 	default:
5560 		break;
5561 	}
5562 
5563 	mvmvif->ps_disabled = true;
5564 
5565 	ret = iwl_mvm_power_update_ps(mvm);
5566 	if (ret)
5567 		goto out_unlock;
5568 
5569 	/* we won't be on this channel any longer */
5570 	iwl_mvm_teardown_tdls_peers(mvm);
5571 
5572 out_unlock:
5573 	mutex_unlock(&mvm->mutex);
5574 
5575 	return ret;
5576 }
5577 
iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5578 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw,
5579 				      struct ieee80211_vif *vif,
5580 				      struct ieee80211_channel_switch *chsw)
5581 {
5582 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5583 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5584 	struct iwl_chan_switch_te_cmd cmd = {
5585 		.mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
5586 							  mvmvif->color)),
5587 		.action = cpu_to_le32(FW_CTXT_ACTION_MODIFY),
5588 		.tsf = cpu_to_le32(chsw->timestamp),
5589 		.cs_count = chsw->count,
5590 		.cs_mode = chsw->block_tx,
5591 	};
5592 
5593 	/*
5594 	 * In the new flow FW is in charge of timing the switch so there is no
5595 	 * need for all of this
5596 	 */
5597 	if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
5598 				    CHANNEL_SWITCH_ERROR_NOTIF, 0))
5599 		return;
5600 
5601 	if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY))
5602 		return;
5603 
5604 	IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n",
5605 			   mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx);
5606 
5607 	if (chsw->count >= mvmvif->csa_count && chsw->block_tx) {
5608 		if (mvmvif->csa_misbehave) {
5609 			/* Second time, give up on this AP*/
5610 			iwl_mvm_abort_channel_switch(hw, vif);
5611 			ieee80211_chswitch_done(vif, false, 0);
5612 			mvmvif->csa_misbehave = false;
5613 			return;
5614 		}
5615 		mvmvif->csa_misbehave = true;
5616 	}
5617 	mvmvif->csa_count = chsw->count;
5618 
5619 	mutex_lock(&mvm->mutex);
5620 	if (mvmvif->csa_failed)
5621 		goto out_unlock;
5622 
5623 	WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
5624 				     WIDE_ID(MAC_CONF_GROUP,
5625 					     CHANNEL_SWITCH_TIME_EVENT_CMD),
5626 				     0, sizeof(cmd), &cmd));
5627 out_unlock:
5628 	mutex_unlock(&mvm->mutex);
5629 }
5630 
iwl_mvm_flush_no_vif(struct iwl_mvm * mvm,u32 queues,bool drop)5631 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
5632 {
5633 	int i;
5634 
5635 	if (!iwl_mvm_has_new_tx_api(mvm)) {
5636 		if (drop) {
5637 			mutex_lock(&mvm->mutex);
5638 			iwl_mvm_flush_tx_path(mvm,
5639 				iwl_mvm_flushable_queues(mvm) & queues);
5640 			mutex_unlock(&mvm->mutex);
5641 		} else {
5642 			iwl_trans_wait_tx_queues_empty(mvm->trans, queues);
5643 		}
5644 		return;
5645 	}
5646 
5647 	mutex_lock(&mvm->mutex);
5648 	for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
5649 		struct ieee80211_sta *sta;
5650 
5651 		sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
5652 						lockdep_is_held(&mvm->mutex));
5653 		if (IS_ERR_OR_NULL(sta))
5654 			continue;
5655 
5656 		if (drop)
5657 			iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF);
5658 		else
5659 			iwl_mvm_wait_sta_queues_empty(mvm,
5660 					iwl_mvm_sta_from_mac80211(sta));
5661 	}
5662 	mutex_unlock(&mvm->mutex);
5663 }
5664 
iwl_mvm_mac_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)5665 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5666 		       u32 queues, bool drop)
5667 {
5668 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5669 	struct iwl_mvm_vif *mvmvif;
5670 	struct iwl_mvm_sta *mvmsta;
5671 	struct ieee80211_sta *sta;
5672 	bool ap_sta_done = false;
5673 	int i;
5674 	u32 msk = 0;
5675 
5676 	if (!vif) {
5677 		iwl_mvm_flush_no_vif(mvm, queues, drop);
5678 		return;
5679 	}
5680 
5681 	/* Make sure we're done with the deferred traffic before flushing */
5682 	flush_work(&mvm->add_stream_wk);
5683 
5684 	mutex_lock(&mvm->mutex);
5685 	mvmvif = iwl_mvm_vif_from_mac80211(vif);
5686 
5687 	/* flush the AP-station and all TDLS peers */
5688 	for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
5689 		sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
5690 						lockdep_is_held(&mvm->mutex));
5691 		if (IS_ERR_OR_NULL(sta))
5692 			continue;
5693 
5694 		mvmsta = iwl_mvm_sta_from_mac80211(sta);
5695 		if (mvmsta->vif != vif)
5696 			continue;
5697 
5698 		if (sta == mvmvif->ap_sta) {
5699 			if (ap_sta_done)
5700 				continue;
5701 			ap_sta_done = true;
5702 		}
5703 
5704 		if (drop) {
5705 			if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id,
5706 					      mvmsta->tfd_queue_msk))
5707 				IWL_ERR(mvm, "flush request fail\n");
5708 		} else {
5709 			if (iwl_mvm_has_new_tx_api(mvm))
5710 				iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
5711 			else /* only used for !iwl_mvm_has_new_tx_api() below */
5712 				msk |= mvmsta->tfd_queue_msk;
5713 		}
5714 	}
5715 
5716 	mutex_unlock(&mvm->mutex);
5717 
5718 	/* this can take a while, and we may need/want other operations
5719 	 * to succeed while doing this, so do it without the mutex held
5720 	 */
5721 	if (!drop && !iwl_mvm_has_new_tx_api(mvm))
5722 		iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
5723 }
5724 
iwl_mvm_mac_flush_sta(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)5725 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5726 			   struct ieee80211_sta *sta)
5727 {
5728 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
5729 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5730 	struct iwl_mvm_link_sta *mvm_link_sta;
5731 	struct ieee80211_link_sta *link_sta;
5732 	int link_id;
5733 
5734 	mutex_lock(&mvm->mutex);
5735 	for_each_sta_active_link(vif, sta, link_sta, link_id) {
5736 		mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id],
5737 							 lockdep_is_held(&mvm->mutex));
5738 		if (!mvm_link_sta)
5739 			continue;
5740 
5741 		if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id,
5742 				      mvmsta->tfd_queue_msk))
5743 			IWL_ERR(mvm, "flush request fail\n");
5744 	}
5745 	mutex_unlock(&mvm->mutex);
5746 }
5747 
iwl_mvm_mac_get_survey(struct ieee80211_hw * hw,int idx,struct survey_info * survey)5748 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
5749 			   struct survey_info *survey)
5750 {
5751 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5752 	int ret = 0;
5753 	u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
5754 					   WIDE_ID(SYSTEM_GROUP,
5755 						   SYSTEM_STATISTICS_CMD),
5756 					   IWL_FW_CMD_VER_UNKNOWN);
5757 
5758 	memset(survey, 0, sizeof(*survey));
5759 
5760 	/* only support global statistics right now */
5761 	if (idx != 0)
5762 		return -ENOENT;
5763 
5764 	if (!fw_has_capa(&mvm->fw->ucode_capa,
5765 			 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
5766 		return -ENOENT;
5767 
5768 	mutex_lock(&mvm->mutex);
5769 
5770 	if (iwl_mvm_firmware_running(mvm)) {
5771 		ret = iwl_mvm_request_statistics(mvm, false);
5772 		if (ret)
5773 			goto out;
5774 	}
5775 
5776 	survey->filled = SURVEY_INFO_TIME_RX |
5777 			 SURVEY_INFO_TIME_TX;
5778 
5779 	survey->time_rx = mvm->accu_radio_stats.rx_time +
5780 			  mvm->radio_stats.rx_time;
5781 	do_div(survey->time_rx, USEC_PER_MSEC);
5782 
5783 	survey->time_tx = mvm->accu_radio_stats.tx_time +
5784 			  mvm->radio_stats.tx_time;
5785 	do_div(survey->time_tx, USEC_PER_MSEC);
5786 
5787 	/* the new fw api doesn't support the following fields */
5788 	if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN)
5789 		goto out;
5790 
5791 	survey->filled |= SURVEY_INFO_TIME |
5792 			  SURVEY_INFO_TIME_SCAN;
5793 	survey->time = mvm->accu_radio_stats.on_time_rf +
5794 		       mvm->radio_stats.on_time_rf;
5795 	do_div(survey->time, USEC_PER_MSEC);
5796 
5797 	survey->time_scan = mvm->accu_radio_stats.on_time_scan +
5798 			    mvm->radio_stats.on_time_scan;
5799 	do_div(survey->time_scan, USEC_PER_MSEC);
5800 
5801  out:
5802 	mutex_unlock(&mvm->mutex);
5803 	return ret;
5804 }
5805 
iwl_mvm_set_sta_rate(u32 rate_n_flags,struct rate_info * rinfo)5806 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo)
5807 {
5808 	u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
5809 	u32 gi_ltf;
5810 
5811 	switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
5812 	case RATE_MCS_CHAN_WIDTH_20:
5813 		rinfo->bw = RATE_INFO_BW_20;
5814 		break;
5815 	case RATE_MCS_CHAN_WIDTH_40:
5816 		rinfo->bw = RATE_INFO_BW_40;
5817 		break;
5818 	case RATE_MCS_CHAN_WIDTH_80:
5819 		rinfo->bw = RATE_INFO_BW_80;
5820 		break;
5821 	case RATE_MCS_CHAN_WIDTH_160:
5822 		rinfo->bw = RATE_INFO_BW_160;
5823 		break;
5824 	case RATE_MCS_CHAN_WIDTH_320:
5825 		rinfo->bw = RATE_INFO_BW_320;
5826 		break;
5827 	}
5828 
5829 	if (format == RATE_MCS_CCK_MSK ||
5830 	    format == RATE_MCS_LEGACY_OFDM_MSK) {
5831 		int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK);
5832 
5833 		/* add the offset needed to get to the legacy ofdm indices */
5834 		if (format == RATE_MCS_LEGACY_OFDM_MSK)
5835 			rate += IWL_FIRST_OFDM_RATE;
5836 
5837 		switch (rate) {
5838 		case IWL_RATE_1M_INDEX:
5839 			rinfo->legacy = 10;
5840 			break;
5841 		case IWL_RATE_2M_INDEX:
5842 			rinfo->legacy = 20;
5843 			break;
5844 		case IWL_RATE_5M_INDEX:
5845 			rinfo->legacy = 55;
5846 			break;
5847 		case IWL_RATE_11M_INDEX:
5848 			rinfo->legacy = 110;
5849 			break;
5850 		case IWL_RATE_6M_INDEX:
5851 			rinfo->legacy = 60;
5852 			break;
5853 		case IWL_RATE_9M_INDEX:
5854 			rinfo->legacy = 90;
5855 			break;
5856 		case IWL_RATE_12M_INDEX:
5857 			rinfo->legacy = 120;
5858 			break;
5859 		case IWL_RATE_18M_INDEX:
5860 			rinfo->legacy = 180;
5861 			break;
5862 		case IWL_RATE_24M_INDEX:
5863 			rinfo->legacy = 240;
5864 			break;
5865 		case IWL_RATE_36M_INDEX:
5866 			rinfo->legacy = 360;
5867 			break;
5868 		case IWL_RATE_48M_INDEX:
5869 			rinfo->legacy = 480;
5870 			break;
5871 		case IWL_RATE_54M_INDEX:
5872 			rinfo->legacy = 540;
5873 		}
5874 		return;
5875 	}
5876 
5877 	rinfo->nss = u32_get_bits(rate_n_flags,
5878 				  RATE_MCS_NSS_MSK) + 1;
5879 	rinfo->mcs = format == RATE_MCS_HT_MSK ?
5880 		RATE_HT_MCS_INDEX(rate_n_flags) :
5881 		u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK);
5882 
5883 	if (rate_n_flags & RATE_MCS_SGI_MSK)
5884 		rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
5885 
5886 	switch (format) {
5887 	case RATE_MCS_EHT_MSK:
5888 		/* TODO: GI/LTF/RU. How does the firmware encode them? */
5889 		rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS;
5890 		break;
5891 	case RATE_MCS_HE_MSK:
5892 		gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK);
5893 
5894 		rinfo->flags |= RATE_INFO_FLAGS_HE_MCS;
5895 
5896 		if (rate_n_flags & RATE_MCS_HE_106T_MSK) {
5897 			rinfo->bw = RATE_INFO_BW_HE_RU;
5898 			rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106;
5899 		}
5900 
5901 		switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) {
5902 		case RATE_MCS_HE_TYPE_SU:
5903 		case RATE_MCS_HE_TYPE_EXT_SU:
5904 			if (gi_ltf == 0 || gi_ltf == 1)
5905 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
5906 			else if (gi_ltf == 2)
5907 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
5908 			else if (gi_ltf == 3)
5909 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
5910 			else
5911 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
5912 			break;
5913 		case RATE_MCS_HE_TYPE_MU:
5914 			if (gi_ltf == 0 || gi_ltf == 1)
5915 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
5916 			else if (gi_ltf == 2)
5917 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
5918 			else
5919 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
5920 			break;
5921 		case RATE_MCS_HE_TYPE_TRIG:
5922 			if (gi_ltf == 0 || gi_ltf == 1)
5923 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
5924 			else
5925 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
5926 			break;
5927 		}
5928 
5929 		if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK)
5930 			rinfo->he_dcm = 1;
5931 		break;
5932 	case RATE_MCS_HT_MSK:
5933 		rinfo->flags |= RATE_INFO_FLAGS_MCS;
5934 		break;
5935 	case RATE_MCS_VHT_MSK:
5936 		rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
5937 		break;
5938 	}
5939 }
5940 
iwl_mvm_mac_sta_statistics(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct station_info * sinfo)5941 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
5942 				struct ieee80211_vif *vif,
5943 				struct ieee80211_sta *sta,
5944 				struct station_info *sinfo)
5945 {
5946 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5947 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5948 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
5949 	int i;
5950 
5951 	if (mvmsta->deflink.avg_energy) {
5952 		sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy;
5953 		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
5954 	}
5955 
5956 	if (iwl_mvm_has_tlc_offload(mvm)) {
5957 		struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw;
5958 
5959 		iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate);
5960 		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
5961 	}
5962 
5963 	/* if beacon filtering isn't on mac80211 does it anyway */
5964 	if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
5965 		return;
5966 
5967 	if (!vif->cfg.assoc)
5968 		return;
5969 
5970 	mutex_lock(&mvm->mutex);
5971 
5972 	if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id)
5973 		goto unlock;
5974 
5975 	if (iwl_mvm_request_statistics(mvm, false))
5976 		goto unlock;
5977 
5978 	sinfo->rx_beacon = 0;
5979 	for_each_mvm_vif_valid_link(mvmvif, i)
5980 		sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons +
5981 			mvmvif->link[i]->beacon_stats.accu_num_beacons;
5982 
5983 	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX);
5984 	if (mvmvif->deflink.beacon_stats.avg_signal) {
5985 		/* firmware only reports a value after RXing a few beacons */
5986 		sinfo->rx_beacon_signal_avg =
5987 			mvmvif->deflink.beacon_stats.avg_signal;
5988 		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
5989 	}
5990  unlock:
5991 	mutex_unlock(&mvm->mutex);
5992 }
5993 
iwl_mvm_event_mlme_callback_ini(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const struct ieee80211_mlme_event * mlme)5994 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm,
5995 					    struct ieee80211_vif *vif,
5996 					    const  struct ieee80211_mlme_event *mlme)
5997 {
5998 	if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) &&
5999 	    (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) {
6000 		iwl_dbg_tlv_time_point(&mvm->fwrt,
6001 				       IWL_FW_INI_TIME_POINT_ASSOC_FAILED,
6002 				       NULL);
6003 		return;
6004 	}
6005 
6006 	if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) {
6007 		iwl_dbg_tlv_time_point(&mvm->fwrt,
6008 				       IWL_FW_INI_TIME_POINT_DEASSOC,
6009 				       NULL);
6010 		return;
6011 	}
6012 }
6013 
iwl_mvm_event_mlme_callback(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const struct ieee80211_event * event)6014 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
6015 					struct ieee80211_vif *vif,
6016 					const struct ieee80211_event *event)
6017 {
6018 #define CHECK_MLME_TRIGGER(_cnt, _fmt...)				\
6019 	do {								\
6020 		if ((trig_mlme->_cnt) && --(trig_mlme->_cnt))		\
6021 			break;						\
6022 		iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt);	\
6023 	} while (0)
6024 
6025 	struct iwl_fw_dbg_trigger_tlv *trig;
6026 	struct iwl_fw_dbg_trigger_mlme *trig_mlme;
6027 
6028 	if (iwl_trans_dbg_ini_valid(mvm->trans)) {
6029 		iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme);
6030 		return;
6031 	}
6032 
6033 	trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
6034 				     FW_DBG_TRIGGER_MLME);
6035 	if (!trig)
6036 		return;
6037 
6038 	trig_mlme = (void *)trig->data;
6039 
6040 	if (event->u.mlme.data == ASSOC_EVENT) {
6041 		if (event->u.mlme.status == MLME_DENIED)
6042 			CHECK_MLME_TRIGGER(stop_assoc_denied,
6043 					   "DENIED ASSOC: reason %d",
6044 					    event->u.mlme.reason);
6045 		else if (event->u.mlme.status == MLME_TIMEOUT)
6046 			CHECK_MLME_TRIGGER(stop_assoc_timeout,
6047 					   "ASSOC TIMEOUT");
6048 	} else if (event->u.mlme.data == AUTH_EVENT) {
6049 		if (event->u.mlme.status == MLME_DENIED)
6050 			CHECK_MLME_TRIGGER(stop_auth_denied,
6051 					   "DENIED AUTH: reason %d",
6052 					   event->u.mlme.reason);
6053 		else if (event->u.mlme.status == MLME_TIMEOUT)
6054 			CHECK_MLME_TRIGGER(stop_auth_timeout,
6055 					   "AUTH TIMEOUT");
6056 	} else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
6057 		CHECK_MLME_TRIGGER(stop_rx_deauth,
6058 				   "DEAUTH RX %d", event->u.mlme.reason);
6059 	} else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
6060 		CHECK_MLME_TRIGGER(stop_tx_deauth,
6061 				   "DEAUTH TX %d", event->u.mlme.reason);
6062 	}
6063 #undef CHECK_MLME_TRIGGER
6064 }
6065 
iwl_mvm_event_bar_rx_callback(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const struct ieee80211_event * event)6066 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
6067 					  struct ieee80211_vif *vif,
6068 					  const struct ieee80211_event *event)
6069 {
6070 	struct iwl_fw_dbg_trigger_tlv *trig;
6071 	struct iwl_fw_dbg_trigger_ba *ba_trig;
6072 
6073 	trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
6074 				     FW_DBG_TRIGGER_BA);
6075 	if (!trig)
6076 		return;
6077 
6078 	ba_trig = (void *)trig->data;
6079 
6080 	if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
6081 		return;
6082 
6083 	iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
6084 				"BAR received from %pM, tid %d, ssn %d",
6085 				event->u.ba.sta->addr, event->u.ba.tid,
6086 				event->u.ba.ssn);
6087 }
6088 
iwl_mvm_mac_event_callback(struct ieee80211_hw * hw,struct ieee80211_vif * vif,const struct ieee80211_event * event)6089 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
6090 				struct ieee80211_vif *vif,
6091 				const struct ieee80211_event *event)
6092 {
6093 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6094 
6095 	switch (event->type) {
6096 	case MLME_EVENT:
6097 		iwl_mvm_event_mlme_callback(mvm, vif, event);
6098 		break;
6099 	case BAR_RX_EVENT:
6100 		iwl_mvm_event_bar_rx_callback(mvm, vif, event);
6101 		break;
6102 	case BA_FRAME_TIMEOUT:
6103 		iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,
6104 						     event->u.ba.tid);
6105 		break;
6106 	default:
6107 		break;
6108 	}
6109 }
6110 
iwl_mvm_sync_rx_queues_internal(struct iwl_mvm * mvm,enum iwl_mvm_rxq_notif_type type,bool sync,const void * data,u32 size)6111 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
6112 				     enum iwl_mvm_rxq_notif_type type,
6113 				     bool sync,
6114 				     const void *data, u32 size)
6115 {
6116 	struct {
6117 		struct iwl_rxq_sync_cmd cmd;
6118 		struct iwl_mvm_internal_rxq_notif notif;
6119 	} __packed cmd = {
6120 		.cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1),
6121 		.cmd.count =
6122 			cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) +
6123 				    size),
6124 		.notif.type = type,
6125 		.notif.sync = sync,
6126 	};
6127 	struct iwl_host_cmd hcmd = {
6128 		.id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD),
6129 		.data[0] = &cmd,
6130 		.len[0] = sizeof(cmd),
6131 		.data[1] = data,
6132 		.len[1] = size,
6133 		.flags = sync ? 0 : CMD_ASYNC,
6134 	};
6135 	int ret;
6136 
6137 	/* size must be a multiple of DWORD */
6138 	if (WARN_ON(cmd.cmd.count & cpu_to_le32(3)))
6139 		return;
6140 
6141 	if (!iwl_mvm_has_new_rx_api(mvm))
6142 		return;
6143 
6144 	if (sync) {
6145 		cmd.notif.cookie = mvm->queue_sync_cookie;
6146 		mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1;
6147 	}
6148 
6149 	ret = iwl_mvm_send_cmd(mvm, &hcmd);
6150 	if (ret) {
6151 		IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
6152 		goto out;
6153 	}
6154 
6155 	if (sync) {
6156 		lockdep_assert_held(&mvm->mutex);
6157 		ret = wait_event_timeout(mvm->rx_sync_waitq,
6158 					 READ_ONCE(mvm->queue_sync_state) == 0 ||
6159 					 iwl_mvm_is_radio_killed(mvm),
6160 					 HZ);
6161 		WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm),
6162 			  "queue sync: failed to sync, state is 0x%lx\n",
6163 			  mvm->queue_sync_state);
6164 	}
6165 
6166 out:
6167 	if (sync) {
6168 		mvm->queue_sync_state = 0;
6169 		mvm->queue_sync_cookie++;
6170 	}
6171 }
6172 
iwl_mvm_sync_rx_queues(struct ieee80211_hw * hw)6173 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
6174 {
6175 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6176 
6177 	mutex_lock(&mvm->mutex);
6178 	iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0);
6179 	mutex_unlock(&mvm->mutex);
6180 }
6181 
6182 int
iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_ftm_responder_stats * stats)6183 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw,
6184 				    struct ieee80211_vif *vif,
6185 				    struct cfg80211_ftm_responder_stats *stats)
6186 {
6187 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6188 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6189 
6190 	if (vif->p2p || vif->type != NL80211_IFTYPE_AP ||
6191 	    !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder)
6192 		return -EINVAL;
6193 
6194 	mutex_lock(&mvm->mutex);
6195 	*stats = mvm->ftm_resp_stats;
6196 	mutex_unlock(&mvm->mutex);
6197 
6198 	stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) |
6199 			BIT(NL80211_FTM_STATS_PARTIAL_NUM) |
6200 			BIT(NL80211_FTM_STATS_FAILED_NUM) |
6201 			BIT(NL80211_FTM_STATS_ASAP_NUM) |
6202 			BIT(NL80211_FTM_STATS_NON_ASAP_NUM) |
6203 			BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) |
6204 			BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) |
6205 			BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) |
6206 			BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM);
6207 
6208 	return 0;
6209 }
6210 
iwl_mvm_start_pmsr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_pmsr_request * request)6211 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6212 		       struct cfg80211_pmsr_request *request)
6213 {
6214 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6215 	int ret;
6216 
6217 	mutex_lock(&mvm->mutex);
6218 	ret = iwl_mvm_ftm_start(mvm, vif, request);
6219 	mutex_unlock(&mvm->mutex);
6220 
6221 	return ret;
6222 }
6223 
iwl_mvm_abort_pmsr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_pmsr_request * request)6224 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6225 			struct cfg80211_pmsr_request *request)
6226 {
6227 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6228 
6229 	mutex_lock(&mvm->mutex);
6230 	iwl_mvm_ftm_abort(mvm, request);
6231 	mutex_unlock(&mvm->mutex);
6232 }
6233 
iwl_mvm_can_hw_csum(struct sk_buff * skb)6234 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb)
6235 {
6236 	u8 protocol = ip_hdr(skb)->protocol;
6237 
6238 	if (!IS_ENABLED(CONFIG_INET))
6239 		return false;
6240 
6241 	return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP;
6242 }
6243 
iwl_mvm_mac_can_aggregate(struct ieee80211_hw * hw,struct sk_buff * head,struct sk_buff * skb)6244 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw,
6245 				      struct sk_buff *head,
6246 				      struct sk_buff *skb)
6247 {
6248 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6249 
6250 	/* For now don't aggregate IPv6 in AMSDU */
6251 	if (skb->protocol != htons(ETH_P_IP))
6252 		return false;
6253 
6254 	if (!iwl_mvm_is_csum_supported(mvm))
6255 		return true;
6256 
6257 	return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head);
6258 }
6259 
iwl_mvm_set_hw_timestamp(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_set_hw_timestamp * hwts)6260 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw,
6261 			     struct ieee80211_vif *vif,
6262 			     struct cfg80211_set_hw_timestamp *hwts)
6263 {
6264 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6265 	u32 protocols = 0;
6266 	int ret;
6267 
6268 	/* HW timestamping is only supported for a specific station */
6269 	if (!hwts->macaddr)
6270 		return -EOPNOTSUPP;
6271 
6272 	if (hwts->enable)
6273 		protocols =
6274 			IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM;
6275 
6276 	mutex_lock(&mvm->mutex);
6277 	ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols);
6278 	mutex_unlock(&mvm->mutex);
6279 
6280 	return ret;
6281 }
6282 
6283 const struct ieee80211_ops iwl_mvm_hw_ops = {
6284 	.tx = iwl_mvm_mac_tx,
6285 	.wake_tx_queue = iwl_mvm_mac_wake_tx_queue,
6286 	.ampdu_action = iwl_mvm_mac_ampdu_action,
6287 	.get_antenna = iwl_mvm_op_get_antenna,
6288 	.set_antenna = iwl_mvm_op_set_antenna,
6289 	.start = iwl_mvm_mac_start,
6290 	.reconfig_complete = iwl_mvm_mac_reconfig_complete,
6291 	.stop = iwl_mvm_mac_stop,
6292 	.add_interface = iwl_mvm_mac_add_interface,
6293 	.remove_interface = iwl_mvm_mac_remove_interface,
6294 	.config = iwl_mvm_mac_config,
6295 	.prepare_multicast = iwl_mvm_prepare_multicast,
6296 	.configure_filter = iwl_mvm_configure_filter,
6297 	.config_iface_filter = iwl_mvm_config_iface_filter,
6298 	.bss_info_changed = iwl_mvm_bss_info_changed,
6299 	.hw_scan = iwl_mvm_mac_hw_scan,
6300 	.cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
6301 	.sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
6302 	.sta_state = iwl_mvm_mac_sta_state,
6303 	.sta_notify = iwl_mvm_mac_sta_notify,
6304 	.allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
6305 	.release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
6306 	.set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
6307 	.sta_rc_update = iwl_mvm_sta_rc_update,
6308 	.conf_tx = iwl_mvm_mac_conf_tx,
6309 	.mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
6310 	.mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx,
6311 	.mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
6312 	.flush = iwl_mvm_mac_flush,
6313 	.flush_sta = iwl_mvm_mac_flush_sta,
6314 	.sched_scan_start = iwl_mvm_mac_sched_scan_start,
6315 	.sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
6316 	.set_key = iwl_mvm_mac_set_key,
6317 	.update_tkip_key = iwl_mvm_mac_update_tkip_key,
6318 	.remain_on_channel = iwl_mvm_roc,
6319 	.cancel_remain_on_channel = iwl_mvm_cancel_roc,
6320 	.add_chanctx = iwl_mvm_add_chanctx,
6321 	.remove_chanctx = iwl_mvm_remove_chanctx,
6322 	.change_chanctx = iwl_mvm_change_chanctx,
6323 	.assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
6324 	.unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
6325 	.switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
6326 
6327 	.start_ap = iwl_mvm_start_ap,
6328 	.stop_ap = iwl_mvm_stop_ap,
6329 	.join_ibss = iwl_mvm_start_ibss,
6330 	.leave_ibss = iwl_mvm_stop_ibss,
6331 
6332 	.tx_last_beacon = iwl_mvm_tx_last_beacon,
6333 
6334 	.set_tim = iwl_mvm_set_tim,
6335 
6336 	.channel_switch = iwl_mvm_channel_switch,
6337 	.pre_channel_switch = iwl_mvm_pre_channel_switch,
6338 	.post_channel_switch = iwl_mvm_post_channel_switch,
6339 	.abort_channel_switch = iwl_mvm_abort_channel_switch,
6340 	.channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon,
6341 
6342 	.tdls_channel_switch = iwl_mvm_tdls_channel_switch,
6343 	.tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
6344 	.tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
6345 
6346 	.event_callback = iwl_mvm_mac_event_callback,
6347 
6348 	.sync_rx_queues = iwl_mvm_sync_rx_queues,
6349 
6350 	CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
6351 
6352 #ifdef CONFIG_PM_SLEEP
6353 	/* look at d3.c */
6354 	.suspend = iwl_mvm_suspend,
6355 	.resume = iwl_mvm_resume,
6356 	.set_wakeup = iwl_mvm_set_wakeup,
6357 	.set_rekey_data = iwl_mvm_set_rekey_data,
6358 #if IS_ENABLED(CONFIG_IPV6)
6359 	.ipv6_addr_change = iwl_mvm_ipv6_addr_change,
6360 #endif
6361 	.set_default_unicast_key = iwl_mvm_set_default_unicast_key,
6362 #endif
6363 	.get_survey = iwl_mvm_mac_get_survey,
6364 	.sta_statistics = iwl_mvm_mac_sta_statistics,
6365 	.get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats,
6366 	.start_pmsr = iwl_mvm_start_pmsr,
6367 	.abort_pmsr = iwl_mvm_abort_pmsr,
6368 
6369 	.can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate,
6370 #ifdef CONFIG_IWLWIFI_DEBUGFS
6371 	.vif_add_debugfs = iwl_mvm_vif_add_debugfs,
6372 	.link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs,
6373 #endif
6374 	.set_hw_timestamp = iwl_mvm_set_hw_timestamp,
6375 };
6376