1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2012-2014, 2018-2024 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 mvm->fwrt.uats_enabled);
143 /* Store the return source id */
144 src_id = resp->source_id;
145 if (IS_ERR_OR_NULL(regd)) {
146 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
147 PTR_ERR_OR_ZERO(regd));
148 goto out;
149 }
150
151 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
152 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
153 mvm->lar_regdom_set = true;
154 mvm->mcc_src = src_id;
155
156 /* Some kind of regulatory mess means we need to currently disallow
157 * puncturing in the US and Canada. Do that here, at least until we
158 * figure out the new chanctx APIs for puncturing.
159 */
160 if (resp->mcc == cpu_to_le16(IWL_MCC_US) ||
161 resp->mcc == cpu_to_le16(IWL_MCC_CANADA))
162 ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING);
163 else
164 __clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags);
165
166 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc));
167
168 out:
169 kfree(resp);
170 return regd;
171 }
172
iwl_mvm_update_changed_regdom(struct iwl_mvm * mvm)173 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
174 {
175 bool changed;
176 struct ieee80211_regdomain *regd;
177
178 if (!iwl_mvm_is_lar_supported(mvm))
179 return;
180
181 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
182 if (!IS_ERR_OR_NULL(regd)) {
183 /* only update the regulatory core if changed */
184 if (changed)
185 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
186
187 kfree(regd);
188 }
189 }
190
iwl_mvm_get_current_regdomain(struct iwl_mvm * mvm,bool * changed)191 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
192 bool *changed)
193 {
194 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
195 iwl_mvm_is_wifi_mcc_supported(mvm) ?
196 MCC_SOURCE_GET_CURRENT :
197 MCC_SOURCE_OLD_FW, changed);
198 }
199
iwl_mvm_init_fw_regd(struct iwl_mvm * mvm,bool force_regd_sync)200 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync)
201 {
202 enum iwl_mcc_source used_src;
203 struct ieee80211_regdomain *regd;
204 int ret;
205 bool changed;
206 const struct ieee80211_regdomain *r =
207 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd);
208
209 if (!r)
210 return -ENOENT;
211
212 /* save the last source in case we overwrite it below */
213 used_src = mvm->mcc_src;
214 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
215 /* Notify the firmware we support wifi location updates */
216 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
217 if (!IS_ERR_OR_NULL(regd))
218 kfree(regd);
219 }
220
221 /* Now set our last stored MCC and source */
222 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
223 &changed);
224 if (IS_ERR_OR_NULL(regd))
225 return -EIO;
226
227 /* update cfg80211 if the regdomain was changed or the caller explicitly
228 * asked to update regdomain
229 */
230 if (changed || force_regd_sync)
231 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd);
232 else
233 ret = 0;
234
235 kfree(regd);
236 return ret;
237 }
238
239 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */
240 static const u8 he_if_types_ext_capa_sta[] = {
241 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
242 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,
243 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
244 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
245 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
246 };
247
248 static const u8 tm_if_types_ext_capa_sta[] = {
249 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
250 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT |
251 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT,
252 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
253 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
254 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
255 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT,
256 };
257
258 /* Additional interface types for which extended capabilities are
259 * specified separately
260 */
261
262 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \
263 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \
264 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \
265 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \
266 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY))
267 #define IWL_MVM_MLD_CAPA_OPS FIELD_PREP_CONST( \
268 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \
269 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME)
270
271 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = {
272 {
273 .iftype = NL80211_IFTYPE_STATION,
274 .extended_capabilities = he_if_types_ext_capa_sta,
275 .extended_capabilities_mask = he_if_types_ext_capa_sta,
276 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta),
277 /* relevant only if EHT is supported */
278 .eml_capabilities = IWL_MVM_EMLSR_CAPA,
279 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS,
280 },
281 {
282 .iftype = NL80211_IFTYPE_STATION,
283 .extended_capabilities = tm_if_types_ext_capa_sta,
284 .extended_capabilities_mask = tm_if_types_ext_capa_sta,
285 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta),
286 /* relevant only if EHT is supported */
287 .eml_capabilities = IWL_MVM_EMLSR_CAPA,
288 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS,
289 },
290 };
291
iwl_mvm_op_get_antenna(struct ieee80211_hw * hw,u32 * tx_ant,u32 * rx_ant)292 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
293 {
294 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
295 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
296 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm);
297 return 0;
298 }
299
iwl_mvm_op_set_antenna(struct ieee80211_hw * hw,u32 tx_ant,u32 rx_ant)300 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
301 {
302 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
303
304 /* This has been tested on those devices only */
305 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 &&
306 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000)
307 return -EOPNOTSUPP;
308
309 if (!mvm->nvm_data)
310 return -EBUSY;
311
312 /* mac80211 ensures the device is not started,
313 * so the firmware cannot be running
314 */
315
316 mvm->set_tx_ant = tx_ant;
317 mvm->set_rx_ant = rx_ant;
318
319 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw);
320
321 return 0;
322 }
323
iwl_mvm_mac_setup_register(struct iwl_mvm * mvm)324 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
325 {
326 struct ieee80211_hw *hw = mvm->hw;
327 int num_mac, ret, i;
328 static const u32 mvm_ciphers[] = {
329 WLAN_CIPHER_SUITE_WEP40,
330 WLAN_CIPHER_SUITE_WEP104,
331 WLAN_CIPHER_SUITE_TKIP,
332 WLAN_CIPHER_SUITE_CCMP,
333 };
334 #ifdef CONFIG_PM_SLEEP
335 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
336 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
337 #endif
338 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);
339 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);
340
341 /* Tell mac80211 our characteristics */
342 ieee80211_hw_set(hw, SIGNAL_DBM);
343 ieee80211_hw_set(hw, SPECTRUM_MGMT);
344 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
345 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
346 ieee80211_hw_set(hw, SUPPORTS_PS);
347 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
348 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
349 ieee80211_hw_set(hw, CONNECTION_MONITOR);
350 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
351 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
352 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
353 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
354 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
355 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
356 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ);
357 ieee80211_hw_set(hw, STA_MMPDU_TXQ);
358
359 /* Set this early since we need to have it for the check below */
360 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable &&
361 !iwlwifi_mod_params.disable_11ax &&
362 !iwlwifi_mod_params.disable_11be) {
363 hw->wiphy->flags |= WIPHY_FLAG_DISABLE_WEXT;
364 /* we handle this already earlier, but need it for MLO */
365 ieee80211_hw_set(hw, HANDLES_QUIET_CSA);
366 }
367
368 /* With MLD FW API, it tracks timing by itself,
369 * no need for any timing from the host
370 */
371 if (!mvm->mld_api_is_used)
372 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
373
374 /* We should probably have this, but mac80211
375 * currently doesn't support it for MLO.
376 */
377 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO))
378 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP);
379
380 /*
381 * On older devices, enabling TX A-MSDU occasionally leads to
382 * something getting messed up, the command read from the FIFO
383 * gets out of sync and isn't a TX command, so that we have an
384 * assert EDC.
385 *
386 * It's not clear where the bug is, but since we didn't used to
387 * support A-MSDU until moving the mac80211 iTXQs, just leave it
388 * for older devices. We also don't see this issue on any newer
389 * devices.
390 */
391 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000)
392 ieee80211_hw_set(hw, TX_AMSDU);
393 ieee80211_hw_set(hw, TX_FRAG_LIST);
394
395 if (iwl_mvm_has_tlc_offload(mvm)) {
396 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
397 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
398 }
399
400 /* We want to use the mac80211's reorder buffer for 9000 */
401 if (iwl_mvm_has_new_rx_api(mvm) &&
402 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000)
403 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
404
405 if (fw_has_capa(&mvm->fw->ucode_capa,
406 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
407 ieee80211_hw_set(hw, AP_LINK_PS);
408 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
409 /*
410 * we absolutely need this for the new TX API since that comes
411 * with many more queues than the current code can deal with
412 * for station powersave
413 */
414 return -EINVAL;
415 }
416
417 if (mvm->trans->num_rx_queues > 1)
418 ieee80211_hw_set(hw, USES_RSS);
419
420 if (mvm->trans->max_skb_frags)
421 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
422
423 hw->queues = IEEE80211_NUM_ACS;
424 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
425 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
426 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
427 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
428 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
429
430 hw->radiotap_timestamp.units_pos =
431 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
432 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
433 /* this is the case for CCK frames, it's better (only 8) for OFDM */
434 hw->radiotap_timestamp.accuracy = 22;
435
436 if (!iwl_mvm_has_tlc_offload(mvm))
437 hw->rate_control_algorithm = RS_NAME;
438
439 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
440 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
441 hw->max_tx_fragments = mvm->trans->max_skb_frags;
442
443 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
444 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
445 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
446 hw->wiphy->cipher_suites = mvm->ciphers;
447
448 if (iwl_mvm_has_new_rx_api(mvm)) {
449 mvm->ciphers[hw->wiphy->n_cipher_suites] =
450 WLAN_CIPHER_SUITE_GCMP;
451 hw->wiphy->n_cipher_suites++;
452 mvm->ciphers[hw->wiphy->n_cipher_suites] =
453 WLAN_CIPHER_SUITE_GCMP_256;
454 hw->wiphy->n_cipher_suites++;
455 }
456
457 if (iwlwifi_mod_params.swcrypto)
458 IWL_ERR(mvm,
459 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n");
460 if (!iwlwifi_mod_params.bt_coex_active)
461 IWL_ERR(mvm,
462 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n");
463
464 ieee80211_hw_set(hw, MFP_CAPABLE);
465 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC;
466 hw->wiphy->n_cipher_suites++;
467 if (iwl_mvm_has_new_rx_api(mvm)) {
468 mvm->ciphers[hw->wiphy->n_cipher_suites] =
469 WLAN_CIPHER_SUITE_BIP_GMAC_128;
470 hw->wiphy->n_cipher_suites++;
471 mvm->ciphers[hw->wiphy->n_cipher_suites] =
472 WLAN_CIPHER_SUITE_BIP_GMAC_256;
473 hw->wiphy->n_cipher_suites++;
474 }
475
476 wiphy_ext_feature_set(hw->wiphy,
477 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
478 wiphy_ext_feature_set(hw->wiphy,
479 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT);
480
481 if (fw_has_capa(&mvm->fw->ucode_capa,
482 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) {
483 wiphy_ext_feature_set(hw->wiphy,
484 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);
485 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa;
486 }
487
488 if (sec_key_ver &&
489 fw_has_capa(&mvm->fw->ucode_capa,
490 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT))
491 wiphy_ext_feature_set(hw->wiphy,
492 NL80211_EXT_FEATURE_BEACON_PROTECTION);
493 else if (fw_has_capa(&mvm->fw->ucode_capa,
494 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT))
495 wiphy_ext_feature_set(hw->wiphy,
496 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT);
497
498 if (fw_has_capa(&mvm->fw->ucode_capa,
499 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM))
500 hw->wiphy->hw_timestamp_max_peers = 1;
501
502 if (fw_has_capa(&mvm->fw->ucode_capa,
503 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT))
504 wiphy_ext_feature_set(hw->wiphy,
505 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT);
506
507 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
508 hw->wiphy->features |=
509 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
510 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
511 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
512
513 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
514 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
515 hw->chanctx_data_size = sizeof(u16);
516 hw->txq_data_size = sizeof(struct iwl_mvm_txq);
517
518 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
519 BIT(NL80211_IFTYPE_P2P_CLIENT) |
520 BIT(NL80211_IFTYPE_AP) |
521 BIT(NL80211_IFTYPE_P2P_GO) |
522 BIT(NL80211_IFTYPE_P2P_DEVICE) |
523 BIT(NL80211_IFTYPE_ADHOC);
524
525 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
526 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
527
528 /* The new Tx API does not allow to pass the key or keyid of a MPDU to
529 * the hw, preventing us to control which key(id) to use per MPDU.
530 * Till that's fixed we can't use Extended Key ID for the newer cards.
531 */
532 if (!iwl_mvm_has_new_tx_api(mvm))
533 wiphy_ext_feature_set(hw->wiphy,
534 NL80211_EXT_FEATURE_EXT_KEY_ID);
535 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS;
536
537 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
538 if (iwl_mvm_is_lar_supported(mvm))
539 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
540 else
541 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
542 REGULATORY_DISABLE_BEACON_HINTS;
543
544 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
545 wiphy_ext_feature_set(hw->wiphy,
546 NL80211_EXT_FEATURE_DFS_CONCURRENT);
547
548 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
549 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
550 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ;
551
552 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
553 hw->wiphy->n_iface_combinations =
554 ARRAY_SIZE(iwl_mvm_iface_combinations);
555
556 hw->wiphy->max_remain_on_channel_duration = 10000;
557 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL;
558
559 /* Extract MAC address */
560 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
561 hw->wiphy->addresses = mvm->addresses;
562 hw->wiphy->n_addresses = 1;
563
564 /* Extract additional MAC addresses if available */
565 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
566 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
567
568 for (i = 1; i < num_mac; i++) {
569 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
570 ETH_ALEN);
571 mvm->addresses[i].addr[5]++;
572 hw->wiphy->n_addresses++;
573 }
574
575 iwl_mvm_reset_phy_ctxts(mvm);
576
577 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
578
579 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
580
581 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
582 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
583 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
584
585 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
586 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
587 else
588 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
589
590 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
591 hw->wiphy->bands[NL80211_BAND_2GHZ] =
592 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
593 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
594 hw->wiphy->bands[NL80211_BAND_5GHZ] =
595 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
596
597 if (fw_has_capa(&mvm->fw->ucode_capa,
598 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
599 fw_has_api(&mvm->fw->ucode_capa,
600 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
601 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
602 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
603 }
604 if (fw_has_capa(&mvm->fw->ucode_capa,
605 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) &&
606 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels)
607 hw->wiphy->bands[NL80211_BAND_6GHZ] =
608 &mvm->nvm_data->bands[NL80211_BAND_6GHZ];
609
610 hw->wiphy->hw_version = mvm->trans->hw_id;
611
612 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
613 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
614 else
615 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
616
617 hw->wiphy->max_sched_scan_reqs = 1;
618 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
619 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw);
620 /* we create the 802.11 header and zero length SSID IE. */
621 hw->wiphy->max_sched_scan_ie_len =
622 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
623 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
624 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
625
626 /*
627 * the firmware uses u8 for num of iterations, but 0xff is saved for
628 * infinite loop, so the maximum number of iterations is actually 254.
629 */
630 hw->wiphy->max_sched_scan_plan_iterations = 254;
631
632 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
633 NL80211_FEATURE_LOW_PRIORITY_SCAN |
634 NL80211_FEATURE_P2P_GO_OPPPS |
635 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
636 NL80211_FEATURE_DYNAMIC_SMPS |
637 NL80211_FEATURE_STATIC_SMPS |
638 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
639
640 if (fw_has_capa(&mvm->fw->ucode_capa,
641 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
642 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
643 if (fw_has_capa(&mvm->fw->ucode_capa,
644 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
645 hw->wiphy->features |= NL80211_FEATURE_QUIET;
646
647 if (fw_has_capa(&mvm->fw->ucode_capa,
648 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
649 hw->wiphy->features |=
650 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
651
652 if (fw_has_capa(&mvm->fw->ucode_capa,
653 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
654 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
655
656 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL,
657 IWL_FW_CMD_VER_UNKNOWN) == 3)
658 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK;
659
660 if (fw_has_api(&mvm->fw->ucode_capa,
661 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
662 wiphy_ext_feature_set(hw->wiphy,
663 NL80211_EXT_FEATURE_SCAN_START_TIME);
664 wiphy_ext_feature_set(hw->wiphy,
665 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
666 }
667
668 if (iwl_mvm_is_oce_supported(mvm)) {
669 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0);
670
671 wiphy_ext_feature_set(hw->wiphy,
672 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP);
673 wiphy_ext_feature_set(hw->wiphy,
674 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME);
675 wiphy_ext_feature_set(hw->wiphy,
676 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE);
677
678 /* Old firmware also supports probe deferral and suppression */
679 if (scan_ver < 15)
680 wiphy_ext_feature_set(hw->wiphy,
681 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION);
682 }
683
684 hw->wiphy->iftype_ext_capab = NULL;
685 hw->wiphy->num_iftype_ext_capab = 0;
686
687 if (mvm->nvm_data->sku_cap_11ax_enable &&
688 !iwlwifi_mod_params.disable_11ax) {
689 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa;
690 hw->wiphy->num_iftype_ext_capab =
691 ARRAY_SIZE(add_iftypes_ext_capa) - 1;
692
693 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
694 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID);
695 }
696
697 if (iwl_fw_lookup_cmd_ver(mvm->fw,
698 WIDE_ID(DATA_PATH_GROUP,
699 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD),
700 IWL_FW_CMD_VER_UNKNOWN) >= 1) {
701 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n");
702
703 if (!hw->wiphy->iftype_ext_capab) {
704 hw->wiphy->num_iftype_ext_capab = 1;
705 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa +
706 ARRAY_SIZE(add_iftypes_ext_capa) - 1;
707 } else {
708 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1;
709 }
710 }
711
712 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP,
713 TOF_RANGE_REQ_CMD),
714 IWL_FW_CMD_VER_UNKNOWN) >= 11) {
715 wiphy_ext_feature_set(hw->wiphy,
716 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE);
717
718 if (fw_has_capa(&mvm->fw->ucode_capa,
719 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT))
720 wiphy_ext_feature_set(hw->wiphy,
721 NL80211_EXT_FEATURE_SECURE_LTF);
722 }
723
724 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
725
726 ieee80211_hw_set(hw, DISALLOW_PUNCTURING_5GHZ);
727
728 #ifdef CONFIG_PM_SLEEP
729 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) &&
730 mvm->trans->ops->d3_suspend &&
731 mvm->trans->ops->d3_resume &&
732 device_can_wakeup(mvm->trans->dev)) {
733 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
734 WIPHY_WOWLAN_DISCONNECT |
735 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
736 WIPHY_WOWLAN_RFKILL_RELEASE |
737 WIPHY_WOWLAN_NET_DETECT;
738 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
739 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
740 WIPHY_WOWLAN_4WAY_HANDSHAKE;
741
742 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
743 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
744 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
745 mvm->wowlan.max_nd_match_sets =
746 iwl_umac_scan_get_max_profiles(mvm->fw);
747 hw->wiphy->wowlan = &mvm->wowlan;
748 }
749 #endif
750
751 ret = iwl_mvm_leds_init(mvm);
752 if (ret)
753 return ret;
754
755 if (fw_has_capa(&mvm->fw->ucode_capa,
756 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
757 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
758 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
759 ieee80211_hw_set(hw, TDLS_WIDER_BW);
760 }
761
762 if (fw_has_capa(&mvm->fw->ucode_capa,
763 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
764 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
765 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
766 }
767
768 hw->netdev_features |= mvm->cfg->features;
769 if (!iwl_mvm_is_csum_supported(mvm))
770 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK;
771
772 if (mvm->cfg->vht_mu_mimo_supported)
773 wiphy_ext_feature_set(hw->wiphy,
774 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
775
776 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT))
777 wiphy_ext_feature_set(hw->wiphy,
778 NL80211_EXT_FEATURE_PROTECTED_TWT);
779
780 iwl_mvm_vendor_cmds_register(mvm);
781
782 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm);
783 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm);
784
785 ret = ieee80211_register_hw(mvm->hw);
786 if (ret) {
787 iwl_mvm_leds_exit(mvm);
788 }
789
790 return ret;
791 }
792
iwl_mvm_tx_skb(struct iwl_mvm * mvm,struct sk_buff * skb,struct ieee80211_sta * sta)793 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
794 struct ieee80211_sta *sta)
795 {
796 if (likely(sta)) {
797 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0))
798 return;
799 } else {
800 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0))
801 return;
802 }
803
804 ieee80211_free_txskb(mvm->hw, skb);
805 }
806
iwl_mvm_mac_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)807 void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
808 struct ieee80211_tx_control *control, struct sk_buff *skb)
809 {
810 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
811 struct ieee80211_sta *sta = control->sta;
812 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
813 struct ieee80211_hdr *hdr = (void *)skb->data;
814 bool offchannel = IEEE80211_SKB_CB(skb)->flags &
815 IEEE80211_TX_CTL_TX_OFFCHAN;
816 u32 link_id = u32_get_bits(info->control.flags,
817 IEEE80211_TX_CTRL_MLO_LINK);
818 struct ieee80211_sta *tmp_sta = sta;
819
820 if (iwl_mvm_is_radio_killed(mvm)) {
821 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
822 goto drop;
823 }
824
825 if (offchannel &&
826 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
827 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
828 goto drop;
829
830 /*
831 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs
832 * so we treat the others as broadcast
833 */
834 if (ieee80211_is_mgmt(hdr->frame_control))
835 sta = NULL;
836
837 /* If there is no sta, and it's not offchannel - send through AP */
838 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION &&
839 !offchannel) {
840 struct iwl_mvm_vif *mvmvif =
841 iwl_mvm_vif_from_mac80211(info->control.vif);
842 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id);
843
844 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) {
845 /* mac80211 holds rcu read lock */
846 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]);
847 if (IS_ERR_OR_NULL(sta))
848 goto drop;
849 }
850 }
851
852 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED &&
853 !ieee80211_is_probe_resp(hdr->frame_control)) {
854 /* translate MLD addresses to LINK addresses */
855 struct ieee80211_link_sta *link_sta =
856 rcu_dereference(tmp_sta->link[link_id]);
857 struct ieee80211_bss_conf *link_conf =
858 rcu_dereference(info->control.vif->link_conf[link_id]);
859 struct ieee80211_mgmt *mgmt;
860
861 if (WARN_ON(!link_sta || !link_conf))
862 goto drop;
863
864 /* if sta is NULL, the frame is a management frame */
865 mgmt = (void *)hdr;
866 memcpy(mgmt->da, link_sta->addr, ETH_ALEN);
867 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN);
868 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN);
869 }
870
871 iwl_mvm_tx_skb(mvm, skb, sta);
872 return;
873 drop:
874 ieee80211_free_txskb(hw, skb);
875 }
876
iwl_mvm_mac_itxq_xmit(struct ieee80211_hw * hw,struct ieee80211_txq * txq)877 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq)
878 {
879 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
880 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
881 struct sk_buff *skb = NULL;
882
883 /*
884 * No need for threads to be pending here, they can leave the first
885 * taker all the work.
886 *
887 * mvmtxq->tx_request logic:
888 *
889 * If 0, no one is currently TXing, set to 1 to indicate current thread
890 * will now start TX and other threads should quit.
891 *
892 * If 1, another thread is currently TXing, set to 2 to indicate to
893 * that thread that there was another request. Since that request may
894 * have raced with the check whether the queue is empty, the TXing
895 * thread should check the queue's status one more time before leaving.
896 * This check is done in order to not leave any TX hanging in the queue
897 * until the next TX invocation (which may not even happen).
898 *
899 * If 2, another thread is currently TXing, and it will already double
900 * check the queue, so do nothing.
901 */
902 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2))
903 return;
904
905 rcu_read_lock();
906 do {
907 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL,
908 &mvmtxq->state) &&
909 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT,
910 &mvmtxq->state) &&
911 !test_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA,
912 &mvmtxq->state) &&
913 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) {
914 skb = ieee80211_tx_dequeue(hw, txq);
915
916 if (!skb) {
917 if (txq->sta)
918 IWL_DEBUG_TX(mvm,
919 "TXQ of sta %pM tid %d is now empty\n",
920 txq->sta->addr,
921 txq->tid);
922 break;
923 }
924
925 iwl_mvm_tx_skb(mvm, skb, txq->sta);
926 }
927 } while (atomic_dec_return(&mvmtxq->tx_request));
928 rcu_read_unlock();
929 }
930
iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw * hw,struct ieee80211_txq * txq)931 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw,
932 struct ieee80211_txq *txq)
933 {
934 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
935 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
936
937 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) ||
938 !txq->sta) {
939 iwl_mvm_mac_itxq_xmit(hw, txq);
940 return;
941 }
942
943 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker
944 * to handle any packets we leave on the txq now
945 */
946
947 spin_lock_bh(&mvm->add_stream_lock);
948 /* The list is being deleted only after the queue is fully allocated. */
949 if (list_empty(&mvmtxq->list) &&
950 /* recheck under lock */
951 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) {
952 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs);
953 schedule_work(&mvm->add_stream_wk);
954 }
955 spin_unlock_bh(&mvm->add_stream_lock);
956 }
957
958 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
959 do { \
960 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
961 break; \
962 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
963 } while (0)
964
965 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)966 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
967 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
968 enum ieee80211_ampdu_mlme_action action)
969 {
970 struct iwl_fw_dbg_trigger_tlv *trig;
971 struct iwl_fw_dbg_trigger_ba *ba_trig;
972
973 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
974 FW_DBG_TRIGGER_BA);
975 if (!trig)
976 return;
977
978 ba_trig = (void *)trig->data;
979
980 switch (action) {
981 case IEEE80211_AMPDU_TX_OPERATIONAL: {
982 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
983 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
984
985 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
986 "TX AGG START: MAC %pM tid %d ssn %d\n",
987 sta->addr, tid, tid_data->ssn);
988 break;
989 }
990 case IEEE80211_AMPDU_TX_STOP_CONT:
991 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
992 "TX AGG STOP: MAC %pM tid %d\n",
993 sta->addr, tid);
994 break;
995 case IEEE80211_AMPDU_RX_START:
996 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
997 "RX AGG START: MAC %pM tid %d ssn %d\n",
998 sta->addr, tid, rx_ba_ssn);
999 break;
1000 case IEEE80211_AMPDU_RX_STOP:
1001 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
1002 "RX AGG STOP: MAC %pM tid %d\n",
1003 sta->addr, tid);
1004 break;
1005 default:
1006 break;
1007 }
1008 }
1009
iwl_mvm_mac_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)1010 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
1011 struct ieee80211_vif *vif,
1012 struct ieee80211_ampdu_params *params)
1013 {
1014 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1015 int ret;
1016 struct ieee80211_sta *sta = params->sta;
1017 enum ieee80211_ampdu_mlme_action action = params->action;
1018 u16 tid = params->tid;
1019 u16 *ssn = ¶ms->ssn;
1020 u16 buf_size = params->buf_size;
1021 bool amsdu = params->amsdu;
1022 u16 timeout = params->timeout;
1023
1024 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
1025 sta->addr, tid, action);
1026
1027 if (!(mvm->nvm_data->sku_cap_11n_enable))
1028 return -EACCES;
1029
1030 mutex_lock(&mvm->mutex);
1031
1032 switch (action) {
1033 case IEEE80211_AMPDU_RX_START:
1034 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id ==
1035 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) {
1036 struct iwl_mvm_vif *mvmvif;
1037 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id;
1038 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid];
1039
1040 mdata->opened_rx_ba_sessions = true;
1041 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1042 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk);
1043 }
1044 if (!iwl_enable_rx_ampdu()) {
1045 ret = -EINVAL;
1046 break;
1047 }
1048 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
1049 timeout);
1050 break;
1051 case IEEE80211_AMPDU_RX_STOP:
1052 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
1053 timeout);
1054 break;
1055 case IEEE80211_AMPDU_TX_START:
1056 if (!iwl_enable_tx_ampdu()) {
1057 ret = -EINVAL;
1058 break;
1059 }
1060 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
1061 break;
1062 case IEEE80211_AMPDU_TX_STOP_CONT:
1063 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
1064 break;
1065 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1066 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1067 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
1068 break;
1069 case IEEE80211_AMPDU_TX_OPERATIONAL:
1070 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
1071 buf_size, amsdu);
1072 break;
1073 default:
1074 WARN_ON_ONCE(1);
1075 ret = -EINVAL;
1076 break;
1077 }
1078
1079 if (!ret) {
1080 u16 rx_ba_ssn = 0;
1081
1082 if (action == IEEE80211_AMPDU_RX_START)
1083 rx_ba_ssn = *ssn;
1084
1085 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1086 rx_ba_ssn, action);
1087 }
1088 mutex_unlock(&mvm->mutex);
1089
1090 return ret;
1091 }
1092
iwl_mvm_cleanup_iterator(void * data,u8 * mac,struct ieee80211_vif * vif)1093 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1094 struct ieee80211_vif *vif)
1095 {
1096 struct iwl_mvm *mvm = data;
1097 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1098 struct iwl_probe_resp_data *probe_data;
1099 unsigned int link_id;
1100
1101 mvmvif->uploaded = false;
1102
1103 spin_lock_bh(&mvm->time_event_lock);
1104 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1105 spin_unlock_bh(&mvm->time_event_lock);
1106
1107 mvmvif->bf_enabled = false;
1108 mvmvif->ba_enabled = false;
1109 mvmvif->ap_sta = NULL;
1110
1111 mvmvif->esr_active = false;
1112 vif->driver_flags &= ~IEEE80211_VIF_EML_ACTIVE;
1113
1114 for_each_mvm_vif_valid_link(mvmvif, link_id) {
1115 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA;
1116 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID;
1117 mvmvif->link[link_id]->phy_ctxt = NULL;
1118 mvmvif->link[link_id]->active = 0;
1119 mvmvif->link[link_id]->igtk = NULL;
1120 memset(&mvmvif->link[link_id]->bf_data, 0,
1121 sizeof(mvmvif->link[link_id]->bf_data));
1122 }
1123
1124 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,
1125 lockdep_is_held(&mvm->mutex));
1126 if (probe_data)
1127 kfree_rcu(probe_data, rcu_head);
1128 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);
1129 }
1130
iwl_mvm_cleanup_sta_iterator(void * data,struct ieee80211_sta * sta)1131 static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta)
1132 {
1133 struct iwl_mvm *mvm = data;
1134 struct iwl_mvm_sta *mvm_sta;
1135 struct ieee80211_vif *vif;
1136 int link_id;
1137
1138 mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1139 vif = mvm_sta->vif;
1140
1141 if (!sta->valid_links)
1142 return;
1143
1144 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) {
1145 struct iwl_mvm_link_sta *mvm_link_sta;
1146
1147 mvm_link_sta =
1148 rcu_dereference_check(mvm_sta->link[link_id],
1149 lockdep_is_held(&mvm->mutex));
1150 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) {
1151 /*
1152 * We have a link STA but the link is inactive in
1153 * mac80211. This will happen if we failed to
1154 * deactivate the link but mac80211 roll back the
1155 * deactivation of the link.
1156 * Delete the stale data to avoid issues later on.
1157 */
1158 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta,
1159 link_id, false);
1160 }
1161 }
1162 }
1163
iwl_mvm_restart_cleanup(struct iwl_mvm * mvm)1164 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1165 {
1166 iwl_mvm_stop_device(mvm);
1167
1168 mvm->cur_aid = 0;
1169
1170 mvm->scan_status = 0;
1171 mvm->ps_disabled = false;
1172 mvm->rfkill_safe_init_done = false;
1173
1174 /* just in case one was running */
1175 iwl_mvm_cleanup_roc_te(mvm);
1176 ieee80211_remain_on_channel_expired(mvm->hw);
1177
1178 iwl_mvm_ftm_restart(mvm);
1179
1180 /*
1181 * cleanup all interfaces, even inactive ones, as some might have
1182 * gone down during the HW restart
1183 */
1184 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
1185
1186 /* cleanup stations as links may be gone after restart */
1187 ieee80211_iterate_stations_atomic(mvm->hw,
1188 iwl_mvm_cleanup_sta_iterator, mvm);
1189
1190 mvm->p2p_device_vif = NULL;
1191
1192 iwl_mvm_reset_phy_ctxts(mvm);
1193 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1194 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1195 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1196
1197 ieee80211_wake_queues(mvm->hw);
1198
1199 mvm->rx_ba_sessions = 0;
1200 mvm->fwrt.dump.conf = FW_DBG_INVALID;
1201 mvm->monitor_on = false;
1202 #ifdef CONFIG_IWLWIFI_DEBUGFS
1203 mvm->beacon_inject_active = false;
1204 #endif
1205
1206 /* keep statistics ticking */
1207 iwl_mvm_accu_radio_stats(mvm);
1208 }
1209
__iwl_mvm_mac_start(struct iwl_mvm * mvm)1210 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1211 {
1212 int ret;
1213
1214 lockdep_assert_held(&mvm->mutex);
1215
1216 ret = iwl_mvm_mei_get_ownership(mvm);
1217 if (ret)
1218 return ret;
1219
1220 if (mvm->mei_nvm_data) {
1221 /* We got the NIC, we can now free the MEI NVM data */
1222 kfree(mvm->mei_nvm_data);
1223 mvm->mei_nvm_data = NULL;
1224
1225 /*
1226 * We can't free the nvm_data we allocated based on the SAP
1227 * data because we registered to cfg80211 with the channels
1228 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data
1229 * just in order to be able free it later.
1230 * NULLify nvm_data so that we will read the NVM from the
1231 * firmware this time.
1232 */
1233 mvm->temp_nvm_data = mvm->nvm_data;
1234 mvm->nvm_data = NULL;
1235 }
1236
1237 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1238 /*
1239 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1240 * so later code will - from now on - see that we're doing it.
1241 */
1242 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1243 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1244 /* Clean up some internal and mac80211 state on restart */
1245 iwl_mvm_restart_cleanup(mvm);
1246 }
1247 ret = iwl_mvm_up(mvm);
1248
1249 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT,
1250 NULL);
1251 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC,
1252 NULL);
1253
1254 mvm->last_reset_or_resume_time_jiffies = jiffies;
1255
1256 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1257 /* Something went wrong - we need to finish some cleanup
1258 * that normally iwl_mvm_mac_restart_complete() below
1259 * would do.
1260 */
1261 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1262 }
1263
1264 return ret;
1265 }
1266
iwl_mvm_mac_start(struct ieee80211_hw * hw)1267 int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1268 {
1269 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1270 int ret;
1271
1272 mutex_lock(&mvm->mutex);
1273
1274 /* we are starting the mac not in error flow, and restart is enabled */
1275 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) &&
1276 iwlwifi_mod_params.fw_restart) {
1277 /*
1278 * This will prevent mac80211 recovery flows to trigger during
1279 * init failures
1280 */
1281 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1282 }
1283
1284 ret = __iwl_mvm_mac_start(mvm);
1285 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1286
1287 mutex_unlock(&mvm->mutex);
1288
1289 iwl_mvm_mei_set_sw_rfkill_state(mvm);
1290
1291 return ret;
1292 }
1293
iwl_mvm_restart_complete(struct iwl_mvm * mvm)1294 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1295 {
1296 int ret;
1297
1298 mutex_lock(&mvm->mutex);
1299
1300 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1301
1302 ret = iwl_mvm_update_quotas(mvm, true, NULL);
1303 if (ret)
1304 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1305 ret);
1306
1307 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY);
1308
1309 /*
1310 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1311 * of packets the FW sent out, so we must reconnect.
1312 */
1313 iwl_mvm_teardown_tdls_peers(mvm);
1314
1315 mutex_unlock(&mvm->mutex);
1316 }
1317
iwl_mvm_mac_reconfig_complete(struct ieee80211_hw * hw,enum ieee80211_reconfig_type reconfig_type)1318 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1319 enum ieee80211_reconfig_type reconfig_type)
1320 {
1321 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1322
1323 switch (reconfig_type) {
1324 case IEEE80211_RECONFIG_TYPE_RESTART:
1325 iwl_mvm_restart_complete(mvm);
1326 break;
1327 case IEEE80211_RECONFIG_TYPE_SUSPEND:
1328 break;
1329 }
1330 }
1331
__iwl_mvm_mac_stop(struct iwl_mvm * mvm)1332 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1333 {
1334 lockdep_assert_held(&mvm->mutex);
1335
1336 iwl_mvm_ftm_initiator_smooth_stop(mvm);
1337
1338 /* firmware counters are obviously reset now, but we shouldn't
1339 * partially track so also clear the fw_reset_accu counters.
1340 */
1341 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1342
1343 /* async_handlers_wk is now blocked */
1344
1345 if (!iwl_mvm_has_new_station_api(mvm->fw))
1346 iwl_mvm_rm_aux_sta(mvm);
1347
1348 iwl_mvm_stop_device(mvm);
1349
1350 iwl_mvm_async_handlers_purge(mvm);
1351 /* async_handlers_list is empty and will stay empty: HW is stopped */
1352
1353 /*
1354 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the
1355 * hw (as restart_complete() won't be called in this case) and mac80211
1356 * won't execute the restart.
1357 * But make sure to cleanup interfaces that have gone down before/during
1358 * HW restart was requested.
1359 */
1360 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) ||
1361 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1362 &mvm->status))
1363 ieee80211_iterate_interfaces(mvm->hw, 0,
1364 iwl_mvm_cleanup_iterator, mvm);
1365
1366 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1367 * make sure there's nothing left there and warn if any is found.
1368 */
1369 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1370 int i;
1371
1372 for (i = 0; i < mvm->max_scans; i++) {
1373 if (WARN_ONCE(mvm->scan_uid_status[i],
1374 "UMAC scan UID %d status was not cleaned\n",
1375 i))
1376 mvm->scan_uid_status[i] = 0;
1377 }
1378 }
1379 }
1380
iwl_mvm_mac_stop(struct ieee80211_hw * hw)1381 void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1382 {
1383 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1384
1385 /* Stop internal MLO scan, if running */
1386 mutex_lock(&mvm->mutex);
1387 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false);
1388 mutex_unlock(&mvm->mutex);
1389
1390 wiphy_work_cancel(mvm->hw->wiphy, &mvm->trig_link_selection_wk);
1391 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk);
1392 flush_work(&mvm->async_handlers_wk);
1393 flush_work(&mvm->add_stream_wk);
1394
1395 /*
1396 * Lock and clear the firmware running bit here already, so that
1397 * new commands coming in elsewhere, e.g. from debugfs, will not
1398 * be able to proceed. This is important here because one of those
1399 * debugfs files causes the firmware dump to be triggered, and if we
1400 * don't stop debugfs accesses before canceling that it could be
1401 * retriggered after we flush it but before we've cleared the bit.
1402 */
1403 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1404
1405 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
1406 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
1407
1408 /*
1409 * The work item could be running or queued if the
1410 * ROC time event stops just as we get here.
1411 */
1412 flush_work(&mvm->roc_done_wk);
1413
1414 iwl_mvm_mei_set_sw_rfkill_state(mvm);
1415
1416 mutex_lock(&mvm->mutex);
1417 __iwl_mvm_mac_stop(mvm);
1418 mutex_unlock(&mvm->mutex);
1419
1420 /*
1421 * The worker might have been waiting for the mutex, let it run and
1422 * discover that its list is now empty.
1423 */
1424 cancel_work_sync(&mvm->async_handlers_wk);
1425 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk);
1426 }
1427
iwl_mvm_get_free_phy_ctxt(struct iwl_mvm * mvm)1428 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1429 {
1430 u16 i;
1431
1432 lockdep_assert_held(&mvm->mutex);
1433
1434 for (i = 0; i < NUM_PHY_CTX; i++)
1435 if (!mvm->phy_ctxts[i].ref)
1436 return &mvm->phy_ctxts[i];
1437
1438 IWL_ERR(mvm, "No available PHY context\n");
1439 return NULL;
1440 }
1441
iwl_mvm_set_tx_power(struct iwl_mvm * mvm,struct ieee80211_vif * vif,s16 tx_power)1442 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1443 s16 tx_power)
1444 {
1445 u32 cmd_id = REDUCE_TX_POWER_CMD;
1446 int len;
1447 struct iwl_dev_tx_power_cmd cmd = {
1448 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1449 .common.mac_context_id =
1450 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1451 .common.pwr_restriction = cpu_to_le16(8 * tx_power),
1452 };
1453 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
1454 IWL_FW_CMD_VER_UNKNOWN);
1455
1456 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1457 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1458
1459 if (cmd_ver == 8)
1460 len = sizeof(cmd.v8);
1461 else if (cmd_ver == 7)
1462 len = sizeof(cmd.v7);
1463 else if (cmd_ver == 6)
1464 len = sizeof(cmd.v6);
1465 else if (fw_has_api(&mvm->fw->ucode_capa,
1466 IWL_UCODE_TLV_API_REDUCE_TX_POWER))
1467 len = sizeof(cmd.v5);
1468 else if (fw_has_capa(&mvm->fw->ucode_capa,
1469 IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1470 len = sizeof(cmd.v4);
1471 else
1472 len = sizeof(cmd.v3);
1473
1474 /* all structs have the same common part, add it */
1475 len += sizeof(cmd.common);
1476
1477 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd);
1478 }
1479
iwl_mvm_post_csa_tx(void * data,struct ieee80211_sta * sta)1480 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta)
1481 {
1482 struct ieee80211_hw *hw = data;
1483 int i;
1484
1485 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {
1486 struct iwl_mvm_txq *mvmtxq =
1487 iwl_mvm_txq_from_mac80211(sta->txq[i]);
1488
1489 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);
1490 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]);
1491 }
1492 }
1493
iwl_mvm_post_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1494 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
1495 struct ieee80211_vif *vif,
1496 struct ieee80211_bss_conf *link_conf)
1497 {
1498 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1499 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1500 int ret;
1501
1502 mutex_lock(&mvm->mutex);
1503
1504 if (vif->type == NL80211_IFTYPE_STATION) {
1505 struct iwl_mvm_sta *mvmsta;
1506 unsigned int link_id = link_conf->link_id;
1507 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id;
1508
1509 mvmvif->csa_bcn_pending = false;
1510 mvmvif->csa_blocks_tx = false;
1511 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id);
1512
1513 if (WARN_ON(!mvmsta)) {
1514 ret = -EIO;
1515 goto out_unlock;
1516 }
1517
1518 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
1519 if (mvm->mld_api_is_used)
1520 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false);
1521 else
1522 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1523
1524 if (!fw_has_capa(&mvm->fw->ucode_capa,
1525 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
1526 ret = iwl_mvm_enable_beacon_filter(mvm, vif);
1527 if (ret)
1528 goto out_unlock;
1529
1530 iwl_mvm_stop_session_protection(mvm, vif);
1531 }
1532 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) {
1533 struct iwl_mvm_txq *mvmtxq =
1534 iwl_mvm_txq_from_mac80211(vif->txq);
1535
1536 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);
1537
1538 local_bh_disable();
1539 iwl_mvm_mac_itxq_xmit(hw, vif->txq);
1540 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw);
1541 local_bh_enable();
1542
1543 mvmvif->csa_blocks_tx = false;
1544 }
1545
1546 mvmvif->ps_disabled = false;
1547
1548 ret = iwl_mvm_power_update_ps(mvm);
1549
1550 out_unlock:
1551 if (mvmvif->csa_failed)
1552 ret = -EIO;
1553 mutex_unlock(&mvm->mutex);
1554
1555 return ret;
1556 }
1557
iwl_mvm_abort_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1558 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw,
1559 struct ieee80211_vif *vif,
1560 struct ieee80211_bss_conf *link_conf)
1561 {
1562 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1563 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1564 struct iwl_chan_switch_te_cmd cmd = {
1565 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
1566 mvmvif->color)),
1567 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),
1568 };
1569
1570 /*
1571 * In the new flow since FW is in charge of the timing,
1572 * if driver has canceled the channel switch he will receive the
1573 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it
1574 */
1575 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
1576 CHANNEL_SWITCH_ERROR_NOTIF, 0))
1577 return;
1578
1579 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id);
1580
1581 mutex_lock(&mvm->mutex);
1582 if (!fw_has_capa(&mvm->fw->ucode_capa,
1583 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
1584 iwl_mvm_remove_csa_period(mvm, vif);
1585 else
1586 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
1587 WIDE_ID(MAC_CONF_GROUP,
1588 CHANNEL_SWITCH_TIME_EVENT_CMD),
1589 0, sizeof(cmd), &cmd));
1590 mvmvif->csa_failed = true;
1591 mutex_unlock(&mvm->mutex);
1592
1593 /* If we're here, we can't support MLD */
1594 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf);
1595 }
1596
iwl_mvm_channel_switch_disconnect_wk(struct work_struct * wk)1597 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk)
1598 {
1599 struct iwl_mvm_vif *mvmvif;
1600 struct ieee80211_vif *vif;
1601
1602 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work);
1603 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1604
1605 /* Trigger disconnect (should clear the CSA state) */
1606 ieee80211_chswitch_done(vif, false, 0);
1607 }
1608
1609 static u8
iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def * chandef)1610 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef)
1611 {
1612 int data_start;
1613 int control_start;
1614 int bw;
1615
1616 if (chandef->width == NL80211_CHAN_WIDTH_320)
1617 bw = 320;
1618 else if (chandef->width == NL80211_CHAN_WIDTH_160)
1619 bw = 160;
1620 else
1621 return 0;
1622
1623 /* data is bw wide so the start is half the width */
1624 data_start = chandef->center_freq1 - bw / 2;
1625 /* control is 20Mhz width */
1626 control_start = chandef->chan->center_freq - 10;
1627
1628 return (control_start - data_start) / 80;
1629 }
1630
iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1631 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm,
1632 struct ieee80211_vif *vif)
1633 {
1634 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1635 int ret;
1636
1637 lockdep_assert_held(&mvm->mutex);
1638
1639 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1640 if (ret) {
1641 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1642 return ret;
1643 }
1644
1645 /* Only queue for this station is the mcast queue,
1646 * which shouldn't be in TFD mask anyway
1647 */
1648 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0,
1649 vif->type,
1650 IWL_STA_MULTICAST);
1651 }
1652
iwl_mvm_prevent_esr_done_wk(struct wiphy * wiphy,struct wiphy_work * wk)1653 static void iwl_mvm_prevent_esr_done_wk(struct wiphy *wiphy,
1654 struct wiphy_work *wk)
1655 {
1656 struct iwl_mvm_vif *mvmvif =
1657 container_of(wk, struct iwl_mvm_vif, prevent_esr_done_wk.work);
1658 struct iwl_mvm *mvm = mvmvif->mvm;
1659 struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm);
1660
1661 mutex_lock(&mvm->mutex);
1662 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_PREVENTION);
1663 mutex_unlock(&mvm->mutex);
1664 }
1665
iwl_mvm_mlo_int_scan_wk(struct wiphy * wiphy,struct wiphy_work * wk)1666 static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk)
1667 {
1668 struct iwl_mvm_vif *mvmvif = container_of(wk, struct iwl_mvm_vif,
1669 mlo_int_scan_wk.work);
1670 struct ieee80211_vif *vif =
1671 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1672
1673 mutex_lock(&mvmvif->mvm->mutex);
1674
1675 iwl_mvm_int_mlo_scan(mvmvif->mvm, vif);
1676
1677 mutex_unlock(&mvmvif->mvm->mutex);
1678 }
1679
iwl_mvm_unblock_esr_tpt(struct wiphy * wiphy,struct wiphy_work * wk)1680 static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk)
1681 {
1682 struct iwl_mvm_vif *mvmvif =
1683 container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk);
1684 struct iwl_mvm *mvm = mvmvif->mvm;
1685 struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm);
1686
1687 mutex_lock(&mvm->mutex);
1688 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT);
1689 mutex_unlock(&mvm->mutex);
1690 }
1691
iwl_mvm_mac_init_mvmvif(struct iwl_mvm * mvm,struct iwl_mvm_vif * mvmvif)1692 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif)
1693 {
1694 lockdep_assert_held(&mvm->mutex);
1695
1696 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1697 return;
1698
1699 INIT_DELAYED_WORK(&mvmvif->csa_work,
1700 iwl_mvm_channel_switch_disconnect_wk);
1701
1702 wiphy_delayed_work_init(&mvmvif->prevent_esr_done_wk,
1703 iwl_mvm_prevent_esr_done_wk);
1704
1705 wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk,
1706 iwl_mvm_mlo_int_scan_wk);
1707
1708 wiphy_work_init(&mvmvif->unblock_esr_tpt_wk,
1709 iwl_mvm_unblock_esr_tpt);
1710 }
1711
iwl_mvm_mac_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1712 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1713 struct ieee80211_vif *vif)
1714 {
1715 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1716 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1717 int ret;
1718 int i;
1719
1720 mutex_lock(&mvm->mutex);
1721
1722 iwl_mvm_mac_init_mvmvif(mvm, mvmvif);
1723
1724 mvmvif->mvm = mvm;
1725
1726 /* the first link always points to the default one */
1727 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID;
1728 mvmvif->deflink.active = 0;
1729 mvmvif->link[0] = &mvmvif->deflink;
1730
1731 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf);
1732 if (ret)
1733 goto out;
1734
1735 /*
1736 * Not much to do here. The stack will not allow interface
1737 * types or combinations that we didn't advertise, so we
1738 * don't really have to check the types.
1739 */
1740
1741 /* make sure that beacon statistics don't go backwards with FW reset */
1742 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1743 for_each_mvm_vif_valid_link(mvmvif, i)
1744 mvmvif->link[i]->beacon_stats.accu_num_beacons +=
1745 mvmvif->link[i]->beacon_stats.num_beacons;
1746
1747 /* Allocate resources for the MAC context, and add it to the fw */
1748 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1749 if (ret)
1750 goto out;
1751
1752 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif);
1753
1754 /* Currently not much to do for NAN */
1755 if (vif->type == NL80211_IFTYPE_NAN) {
1756 ret = 0;
1757 goto out;
1758 }
1759
1760 /*
1761 * The AP binding flow can be done only after the beacon
1762 * template is configured (which happens only in the mac80211
1763 * start_ap() flow), and adding the broadcast station can happen
1764 * only after the binding.
1765 * In addition, since modifying the MAC before adding a bcast
1766 * station is not allowed by the FW, delay the adding of MAC context to
1767 * the point where we can also add the bcast station.
1768 * In short: there's not much we can do at this point, other than
1769 * allocating resources :)
1770 */
1771 if (vif->type == NL80211_IFTYPE_AP ||
1772 vif->type == NL80211_IFTYPE_ADHOC) {
1773 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1774 iwl_mvm_vif_dbgfs_add_link(mvm, vif);
1775 ret = 0;
1776 goto out;
1777 }
1778
1779 mvmvif->features |= hw->netdev_features;
1780
1781 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1782 if (ret)
1783 goto out_unlock;
1784
1785 ret = iwl_mvm_power_update_mac(mvm);
1786 if (ret)
1787 goto out_remove_mac;
1788
1789 /* beacon filtering */
1790 ret = iwl_mvm_disable_beacon_filter(mvm, vif);
1791 if (ret)
1792 goto out_remove_mac;
1793
1794 if (!mvm->bf_allowed_vif &&
1795 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1796 mvm->bf_allowed_vif = mvmvif;
1797 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1798 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1799 }
1800
1801 if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
1802 mvm->p2p_device_vif = vif;
1803
1804 iwl_mvm_tcm_add_vif(mvm, vif);
1805
1806 if (vif->type == NL80211_IFTYPE_MONITOR) {
1807 mvm->monitor_on = true;
1808 mvm->monitor_p80 =
1809 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper);
1810 }
1811
1812 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1813 iwl_mvm_vif_dbgfs_add_link(mvm, vif);
1814
1815 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
1816 vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1817 !mvm->csme_vif && mvm->mei_registered) {
1818 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr);
1819 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev);
1820 mvm->csme_vif = vif;
1821 }
1822
1823 out:
1824 if (!ret && (vif->type == NL80211_IFTYPE_AP ||
1825 vif->type == NL80211_IFTYPE_ADHOC))
1826 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif);
1827
1828 goto out_unlock;
1829
1830 out_remove_mac:
1831 mvmvif->deflink.phy_ctxt = NULL;
1832 iwl_mvm_mac_ctxt_remove(mvm, vif);
1833 out_unlock:
1834 mutex_unlock(&mvm->mutex);
1835
1836 return ret;
1837 }
1838
iwl_mvm_prepare_mac_removal(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1839 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1840 struct ieee80211_vif *vif)
1841 {
1842 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1843
1844 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1845 /*
1846 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1847 * We assume here that all the packets sent to the OFFCHANNEL
1848 * queue are sent in ROC session.
1849 */
1850 flush_work(&mvm->roc_done_wk);
1851 }
1852
1853 wiphy_delayed_work_cancel(mvm->hw->wiphy,
1854 &mvmvif->prevent_esr_done_wk);
1855
1856 wiphy_delayed_work_cancel(mvm->hw->wiphy,
1857 &mvmvif->mlo_int_scan_wk);
1858
1859 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk);
1860
1861 cancel_delayed_work_sync(&mvmvif->csa_work);
1862 }
1863
1864 /* This function is doing the common part of removing the interface for
1865 * both - MLD and non-MLD modes. Returns true if removing the interface
1866 * is done
1867 */
iwl_mvm_mac_remove_interface_common(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1868 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw,
1869 struct ieee80211_vif *vif)
1870 {
1871 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1872 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1873 struct iwl_probe_resp_data *probe_data;
1874
1875 iwl_mvm_prepare_mac_removal(mvm, vif);
1876
1877 if (!(vif->type == NL80211_IFTYPE_AP ||
1878 vif->type == NL80211_IFTYPE_ADHOC))
1879 iwl_mvm_tcm_rm_vif(mvm, vif);
1880
1881 mutex_lock(&mvm->mutex);
1882
1883 if (vif == mvm->csme_vif) {
1884 iwl_mei_set_netdev(NULL);
1885 mvm->csme_vif = NULL;
1886 }
1887
1888 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,
1889 lockdep_is_held(&mvm->mutex));
1890 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);
1891 if (probe_data)
1892 kfree_rcu(probe_data, rcu_head);
1893
1894 if (mvm->bf_allowed_vif == mvmvif) {
1895 mvm->bf_allowed_vif = NULL;
1896 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1897 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1898 }
1899
1900 if (vif->bss_conf.ftm_responder)
1901 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats));
1902
1903 iwl_mvm_vif_dbgfs_rm_link(mvm, vif);
1904
1905 /*
1906 * For AP/GO interface, the tear down of the resources allocated to the
1907 * interface is be handled as part of the stop_ap flow.
1908 */
1909 if (vif->type == NL80211_IFTYPE_AP ||
1910 vif->type == NL80211_IFTYPE_ADHOC) {
1911 #ifdef CONFIG_NL80211_TESTMODE
1912 if (vif == mvm->noa_vif) {
1913 mvm->noa_vif = NULL;
1914 mvm->noa_duration = 0;
1915 }
1916 #endif
1917 return true;
1918 }
1919
1920 iwl_mvm_power_update_mac(mvm);
1921 return false;
1922 }
1923
iwl_mvm_mac_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1924 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1925 struct ieee80211_vif *vif)
1926 {
1927 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1928 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1929
1930 if (iwl_mvm_mac_remove_interface_common(hw, vif))
1931 goto out;
1932
1933 /* Before the interface removal, mac80211 would cancel the ROC, and the
1934 * ROC worker would be scheduled if needed. The worker would be flushed
1935 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no
1936 * binding etc. so nothing needs to be done here.
1937 */
1938 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1939 if (mvmvif->deflink.phy_ctxt) {
1940 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);
1941 mvmvif->deflink.phy_ctxt = NULL;
1942 }
1943 mvm->p2p_device_vif = NULL;
1944 }
1945
1946 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf);
1947 iwl_mvm_mac_ctxt_remove(mvm, vif);
1948
1949 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL);
1950
1951 if (vif->type == NL80211_IFTYPE_MONITOR)
1952 mvm->monitor_on = false;
1953
1954 out:
1955 if (vif->type == NL80211_IFTYPE_AP ||
1956 vif->type == NL80211_IFTYPE_ADHOC) {
1957 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta);
1958 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1959 }
1960
1961 mutex_unlock(&mvm->mutex);
1962 }
1963
1964 struct iwl_mvm_mc_iter_data {
1965 struct iwl_mvm *mvm;
1966 int port_id;
1967 };
1968
iwl_mvm_mc_iface_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)1969 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1970 struct ieee80211_vif *vif)
1971 {
1972 struct iwl_mvm_mc_iter_data *data = _data;
1973 struct iwl_mvm *mvm = data->mvm;
1974 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1975 struct iwl_host_cmd hcmd = {
1976 .id = MCAST_FILTER_CMD,
1977 .flags = CMD_ASYNC,
1978 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1979 };
1980 int ret, len;
1981
1982 /* if we don't have free ports, mcast frames will be dropped */
1983 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1984 return;
1985
1986 if (vif->type != NL80211_IFTYPE_STATION ||
1987 !vif->cfg.assoc)
1988 return;
1989
1990 cmd->port_id = data->port_id++;
1991 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1992 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1993
1994 hcmd.len[0] = len;
1995 hcmd.data[0] = cmd;
1996
1997 ret = iwl_mvm_send_cmd(mvm, &hcmd);
1998 if (ret)
1999 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
2000 }
2001
iwl_mvm_recalc_multicast(struct iwl_mvm * mvm)2002 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
2003 {
2004 struct iwl_mvm_mc_iter_data iter_data = {
2005 .mvm = mvm,
2006 };
2007 int ret;
2008
2009 lockdep_assert_held(&mvm->mutex);
2010
2011 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
2012 return;
2013
2014 ieee80211_iterate_active_interfaces_atomic(
2015 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2016 iwl_mvm_mc_iface_iterator, &iter_data);
2017
2018 /*
2019 * Send a (synchronous) ech command so that we wait for the
2020 * multiple asynchronous MCAST_FILTER_CMD commands sent by
2021 * the interface iterator. Otherwise, we might get here over
2022 * and over again (by userspace just sending a lot of these)
2023 * and the CPU can send them faster than the firmware can
2024 * process them.
2025 * Note that the CPU is still faster - but with this we'll
2026 * actually send fewer commands overall because the CPU will
2027 * not schedule the work in mac80211 as frequently if it's
2028 * still running when rescheduled (possibly multiple times).
2029 */
2030 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
2031 if (ret)
2032 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n");
2033 }
2034
iwl_mvm_prepare_multicast(struct ieee80211_hw * hw,struct netdev_hw_addr_list * mc_list)2035 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
2036 struct netdev_hw_addr_list *mc_list)
2037 {
2038 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2039 struct iwl_mcast_filter_cmd *cmd;
2040 struct netdev_hw_addr *addr;
2041 int addr_count;
2042 bool pass_all;
2043 int len;
2044
2045 addr_count = netdev_hw_addr_list_count(mc_list);
2046 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
2047 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
2048 if (pass_all)
2049 addr_count = 0;
2050
2051 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
2052 cmd = kzalloc(len, GFP_ATOMIC);
2053 if (!cmd)
2054 return 0;
2055
2056 if (pass_all) {
2057 cmd->pass_all = 1;
2058 return (u64)(unsigned long)cmd;
2059 }
2060
2061 netdev_hw_addr_list_for_each(addr, mc_list) {
2062 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
2063 cmd->count, addr->addr);
2064 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
2065 addr->addr, ETH_ALEN);
2066 cmd->count++;
2067 }
2068
2069 return (u64)(unsigned long)cmd;
2070 }
2071
iwl_mvm_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)2072 void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
2073 unsigned int changed_flags,
2074 unsigned int *total_flags, u64 multicast)
2075 {
2076 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2077 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
2078
2079 mutex_lock(&mvm->mutex);
2080
2081 /* replace previous configuration */
2082 kfree(mvm->mcast_filter_cmd);
2083 mvm->mcast_filter_cmd = cmd;
2084
2085 if (!cmd)
2086 goto out;
2087
2088 if (changed_flags & FIF_ALLMULTI)
2089 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
2090
2091 if (cmd->pass_all)
2092 cmd->count = 0;
2093
2094 iwl_mvm_recalc_multicast(mvm);
2095 out:
2096 mutex_unlock(&mvm->mutex);
2097 *total_flags = 0;
2098 }
2099
iwl_mvm_config_iface_filter(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int filter_flags,unsigned int changed_flags)2100 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
2101 struct ieee80211_vif *vif,
2102 unsigned int filter_flags,
2103 unsigned int changed_flags)
2104 {
2105 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2106
2107 /* We support only filter for probe requests */
2108 if (!(changed_flags & FIF_PROBE_REQ))
2109 return;
2110
2111 /* Supported only for p2p client interfaces */
2112 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc ||
2113 !vif->p2p)
2114 return;
2115
2116 mutex_lock(&mvm->mutex);
2117 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2118 mutex_unlock(&mvm->mutex);
2119 }
2120
iwl_mvm_update_mu_groups(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2121 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2122 {
2123 struct iwl_mu_group_mgmt_cmd cmd = {};
2124
2125 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
2126 WLAN_MEMBERSHIP_LEN);
2127 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
2128 WLAN_USER_POSITION_LEN);
2129
2130 return iwl_mvm_send_cmd_pdu(mvm,
2131 WIDE_ID(DATA_PATH_GROUP,
2132 UPDATE_MU_GROUPS_CMD),
2133 0, sizeof(cmd), &cmd);
2134 }
2135
iwl_mvm_mu_mimo_iface_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)2136 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
2137 struct ieee80211_vif *vif)
2138 {
2139 if (vif->bss_conf.mu_mimo_owner) {
2140 struct iwl_mu_group_mgmt_notif *notif = _data;
2141
2142 /*
2143 * MU-MIMO Group Id action frame is little endian. We treat
2144 * the data received from firmware as if it came from the
2145 * action frame, so no conversion is needed.
2146 */
2147 ieee80211_update_mu_groups(vif, 0,
2148 (u8 *)¬if->membership_status,
2149 (u8 *)¬if->user_position);
2150 }
2151 }
2152
iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)2153 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
2154 struct iwl_rx_cmd_buffer *rxb)
2155 {
2156 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2157 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
2158
2159 ieee80211_iterate_active_interfaces_atomic(
2160 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2161 iwl_mvm_mu_mimo_iface_iterator, notif);
2162 }
2163
iwl_mvm_he_get_ppe_val(u8 * ppe,u8 ppe_pos_bit)2164 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit)
2165 {
2166 u8 byte_num = ppe_pos_bit / 8;
2167 u8 bit_num = ppe_pos_bit % 8;
2168 u8 residue_bits;
2169 u8 res;
2170
2171 if (bit_num <= 5)
2172 return (ppe[byte_num] >> bit_num) &
2173 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1);
2174
2175 /*
2176 * If bit_num > 5, we have to combine bits with next byte.
2177 * Calculate how many bits we need to take from current byte (called
2178 * here "residue_bits"), and add them to bits from next byte.
2179 */
2180
2181 residue_bits = 8 - bit_num;
2182
2183 res = (ppe[byte_num + 1] &
2184 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) <<
2185 residue_bits;
2186 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1);
2187
2188 return res;
2189 }
2190
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)2191 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm,
2192 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss,
2193 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit,
2194 bool inheritance)
2195 {
2196 int i;
2197
2198 /*
2199 * FW currently supports only nss == MAX_HE_SUPP_NSS
2200 *
2201 * If nss > MAX: we can ignore values we don't support
2202 * If nss < MAX: we can set zeros in other streams
2203 */
2204 if (nss > MAX_HE_SUPP_NSS) {
2205 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,
2206 MAX_HE_SUPP_NSS);
2207 nss = MAX_HE_SUPP_NSS;
2208 }
2209
2210 for (i = 0; i < nss; i++) {
2211 u8 ru_index_tmp = ru_index_bitmap << 1;
2212 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE;
2213 u8 bw;
2214
2215 for (bw = 0;
2216 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2217 bw++) {
2218 ru_index_tmp >>= 1;
2219
2220 /*
2221 * According to the 11be spec, if for a specific BW the PPE Thresholds
2222 * isn't present - it should inherit the thresholds from the last
2223 * BW for which we had PPE Thresholds. In 11ax though, we don't have
2224 * this inheritance - continue in this case
2225 */
2226 if (!(ru_index_tmp & 1)) {
2227 if (inheritance)
2228 goto set_thresholds;
2229 else
2230 continue;
2231 }
2232
2233 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
2234 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2235 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
2236 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2237
2238 set_thresholds:
2239 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
2240 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
2241 }
2242 }
2243 }
2244
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)2245 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm,
2246 struct ieee80211_link_sta *link_sta,
2247 struct iwl_he_pkt_ext_v2 *pkt_ext,
2248 bool inheritance)
2249 {
2250 u8 nss = (link_sta->he_cap.ppe_thres[0] &
2251 IEEE80211_PPE_THRES_NSS_MASK) + 1;
2252 u8 *ppe = &link_sta->he_cap.ppe_thres[0];
2253 u8 ru_index_bitmap =
2254 u8_get_bits(*ppe,
2255 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
2256 /* Starting after PPE header */
2257 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE;
2258
2259 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit,
2260 inheritance);
2261 }
2262
2263 static int
iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 * pkt_ext,u8 nominal_padding)2264 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext,
2265 u8 nominal_padding)
2266 {
2267 int low_th = -1;
2268 int high_th = -1;
2269 int i;
2270
2271 /* all the macros are the same for EHT and HE */
2272 switch (nominal_padding) {
2273 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US:
2274 low_th = IWL_HE_PKT_EXT_NONE;
2275 high_th = IWL_HE_PKT_EXT_NONE;
2276 break;
2277 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US:
2278 low_th = IWL_HE_PKT_EXT_BPSK;
2279 high_th = IWL_HE_PKT_EXT_NONE;
2280 break;
2281 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US:
2282 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US:
2283 low_th = IWL_HE_PKT_EXT_NONE;
2284 high_th = IWL_HE_PKT_EXT_BPSK;
2285 break;
2286 }
2287
2288 if (low_th < 0 || high_th < 0)
2289 return -EINVAL;
2290
2291 /* Set the PPE thresholds accordingly */
2292 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2293 u8 bw;
2294
2295 for (bw = 0;
2296 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2297 bw++) {
2298 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
2299 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
2300 }
2301 }
2302
2303 return 0;
2304 }
2305
iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 * pkt_ext,u8 nominal_padding)2306 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext,
2307 u8 nominal_padding)
2308 {
2309 int i;
2310
2311 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2312 u8 bw;
2313
2314 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2315 bw++) {
2316 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0];
2317
2318 if (nominal_padding >
2319 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&
2320 qam_th[1] == IWL_HE_PKT_EXT_NONE)
2321 qam_th[1] = IWL_HE_PKT_EXT_4096QAM;
2322 else if (nominal_padding ==
2323 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&
2324 qam_th[0] == IWL_HE_PKT_EXT_NONE &&
2325 qam_th[1] == IWL_HE_PKT_EXT_NONE)
2326 qam_th[0] = IWL_HE_PKT_EXT_4096QAM;
2327 }
2328 }
2329 }
2330
2331 /* 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)2332 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm,
2333 struct ieee80211_link_sta *link_sta,
2334 struct iwl_he_pkt_ext_v2 *pkt_ext)
2335 {
2336 u8 nominal_padding;
2337 int i, ret = 0;
2338
2339 if (WARN_ON(!link_sta))
2340 return -EINVAL;
2341
2342 /* Initialize the PPE thresholds to "None" (7), as described in Table
2343 * 9-262ac of 80211.ax/D3.0.
2344 */
2345 memset(pkt_ext, IWL_HE_PKT_EXT_NONE,
2346 sizeof(struct iwl_he_pkt_ext_v2));
2347
2348 if (link_sta->eht_cap.has_eht) {
2349 nominal_padding =
2350 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5],
2351 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK);
2352
2353 /* If PPE Thresholds exists, parse them into a FW-familiar
2354 * format.
2355 */
2356 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] &
2357 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
2358 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] &
2359 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1;
2360 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0];
2361 u8 ru_index_bitmap =
2362 u16_get_bits(*ppe,
2363 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);
2364 /* Starting after PPE header */
2365 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;
2366
2367 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap,
2368 ppe, ppe_pos_bit, true);
2369 /* EHT PPE Thresholds doesn't exist - set the API according to
2370 * HE PPE Tresholds
2371 */
2372 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &
2373 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2374 /* Even though HE Capabilities IE doesn't contain PPE
2375 * Thresholds for BW 320Mhz, thresholds for this BW will
2376 * be filled in with the same values as 160Mhz, due to
2377 * the inheritance, as required.
2378 */
2379 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,
2380 true);
2381
2382 /* According to the requirements, for MCSs 12-13 the
2383 * maximum value between HE PPE Threshold and Common
2384 * Nominal Packet Padding needs to be taken
2385 */
2386 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding);
2387
2388 /* if PPE Thresholds doesn't present in both EHT IE and HE IE -
2389 * take the Thresholds from Common Nominal Packet Padding field
2390 */
2391 } else {
2392 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,
2393 nominal_padding);
2394 }
2395 } else if (link_sta->he_cap.has_he) {
2396 /* If PPE Thresholds exist, parse them into a FW-familiar format. */
2397 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &
2398 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2399 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,
2400 false);
2401 /* PPE Thresholds doesn't exist - set the API PPE values
2402 * according to Common Nominal Packet Padding field.
2403 */
2404 } else {
2405 nominal_padding =
2406 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9],
2407 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK);
2408 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED)
2409 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,
2410 nominal_padding);
2411 }
2412 }
2413
2414 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2415 int bw;
2416
2417 for (bw = 0;
2418 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]);
2419 bw++) {
2420 u8 *qam_th =
2421 &pkt_ext->pkt_ext_qam_th[i][bw][0];
2422
2423 IWL_DEBUG_HT(mvm,
2424 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n",
2425 i, bw, qam_th[0], qam_th[1]);
2426 }
2427 }
2428 return ret;
2429 }
2430
2431 /*
2432 * This function sets the MU EDCA parameters ans returns whether MU EDCA
2433 * is enabled or not
2434 */
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)2435 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm,
2436 const struct iwl_mvm_vif_link_info *link_info,
2437 struct iwl_he_backoff_conf *trig_based_txf)
2438 {
2439 int i;
2440 /* Mark MU EDCA as enabled, unless none detected on some AC */
2441 bool mu_edca_enabled = true;
2442
2443 for (i = 0; i < IEEE80211_NUM_ACS; i++) {
2444 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca =
2445 &link_info->queue_params[i].mu_edca_param_rec;
2446 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i);
2447
2448 if (!link_info->queue_params[i].mu_edca) {
2449 mu_edca_enabled = false;
2450 break;
2451 }
2452
2453 trig_based_txf[ac].cwmin =
2454 cpu_to_le16(mu_edca->ecw_min_max & 0xf);
2455 trig_based_txf[ac].cwmax =
2456 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4);
2457 trig_based_txf[ac].aifsn =
2458 cpu_to_le16(mu_edca->aifsn & 0xf);
2459 trig_based_txf[ac].mu_time =
2460 cpu_to_le16(mu_edca->mu_edca_timer);
2461 }
2462
2463 return mu_edca_enabled;
2464 }
2465
iwl_mvm_is_nic_ack_enabled(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2466 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2467 {
2468 const struct ieee80211_supported_band *sband;
2469 const struct ieee80211_sta_he_cap *own_he_cap = NULL;
2470
2471 /* This capability is the same for all bands,
2472 * so take it from one of them.
2473 */
2474 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
2475 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
2476
2477 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] &
2478 IEEE80211_HE_MAC_CAP2_ACK_EN));
2479 }
2480
iwl_mvm_get_sta_htc_flags(struct ieee80211_sta * sta,struct ieee80211_link_sta * link_sta)2481 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta,
2482 struct ieee80211_link_sta *link_sta)
2483 {
2484 u8 *mac_cap_info =
2485 &link_sta->he_cap.he_cap_elem.mac_cap_info[0];
2486 __le32 htc_flags = 0;
2487
2488 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE)
2489 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT);
2490 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) ||
2491 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) {
2492 u8 link_adap =
2493 ((mac_cap_info[2] &
2494 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) +
2495 (mac_cap_info[1] &
2496 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION);
2497
2498 if (link_adap == 2)
2499 htc_flags |=
2500 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED);
2501 else if (link_adap == 3)
2502 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH);
2503 }
2504 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR)
2505 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP);
2506 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL)
2507 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP);
2508 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR)
2509 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP);
2510
2511 return htc_flags;
2512 }
2513
iwl_mvm_cfg_he_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u8 sta_id)2514 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm,
2515 struct ieee80211_vif *vif, u8 sta_id)
2516 {
2517 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2518 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = {
2519 .sta_id = sta_id,
2520 .tid_limit = IWL_MAX_TID_COUNT,
2521 .bss_color = vif->bss_conf.he_bss_color.color,
2522 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext,
2523 .frame_time_rts_th =
2524 cpu_to_le16(vif->bss_conf.frame_time_rts_th),
2525 };
2526 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {};
2527 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD);
2528 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2);
2529 int size;
2530 struct ieee80211_sta *sta;
2531 u32 flags;
2532 int i;
2533 void *cmd;
2534
2535 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE))
2536 ver = 1;
2537
2538 switch (ver) {
2539 case 1:
2540 /* same layout as v2 except some data at the end */
2541 cmd = &sta_ctxt_cmd_v2;
2542 size = sizeof(struct iwl_he_sta_context_cmd_v1);
2543 break;
2544 case 2:
2545 cmd = &sta_ctxt_cmd_v2;
2546 size = sizeof(struct iwl_he_sta_context_cmd_v2);
2547 break;
2548 case 3:
2549 cmd = &sta_ctxt_cmd;
2550 size = sizeof(struct iwl_he_sta_context_cmd_v3);
2551 break;
2552 default:
2553 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver);
2554 return;
2555 }
2556
2557 rcu_read_lock();
2558
2559 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]);
2560 if (IS_ERR_OR_NULL(sta)) {
2561 rcu_read_unlock();
2562 WARN(1, "Can't find STA to configure HE\n");
2563 return;
2564 }
2565
2566 if (!sta->deflink.he_cap.has_he) {
2567 rcu_read_unlock();
2568 return;
2569 }
2570
2571 flags = 0;
2572
2573 /* Block 26-tone RU OFDMA transmissions */
2574 if (mvmvif->deflink.he_ru_2mhz_block)
2575 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK;
2576
2577 /* HTC flags */
2578 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink);
2579
2580 /* PPE Thresholds */
2581 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext))
2582 flags |= STA_CTXT_HE_PACKET_EXT;
2583
2584 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2585 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP)
2586 flags |= STA_CTXT_HE_32BIT_BA_BITMAP;
2587
2588 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2589 IEEE80211_HE_MAC_CAP2_ACK_EN)
2590 flags |= STA_CTXT_HE_ACK_ENABLED;
2591
2592 rcu_read_unlock();
2593
2594 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink,
2595 &sta_ctxt_cmd.trig_based_txf[0]))
2596 flags |= STA_CTXT_HE_MU_EDCA_CW;
2597
2598 if (vif->bss_conf.uora_exists) {
2599 flags |= STA_CTXT_HE_TRIG_RND_ALLOC;
2600
2601 sta_ctxt_cmd.rand_alloc_ecwmin =
2602 vif->bss_conf.uora_ocw_range & 0x7;
2603 sta_ctxt_cmd.rand_alloc_ecwmax =
2604 (vif->bss_conf.uora_ocw_range >> 3) & 0x7;
2605 }
2606
2607 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif))
2608 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED;
2609
2610 if (vif->bss_conf.nontransmitted) {
2611 flags |= STA_CTXT_HE_REF_BSSID_VALID;
2612 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr,
2613 vif->bss_conf.transmitter_bssid);
2614 sta_ctxt_cmd.max_bssid_indicator =
2615 vif->bss_conf.bssid_indicator;
2616 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index;
2617 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap;
2618 sta_ctxt_cmd.profile_periodicity =
2619 vif->bss_conf.profile_periodicity;
2620 }
2621
2622 sta_ctxt_cmd.flags = cpu_to_le32(flags);
2623
2624 if (ver < 3) {
2625 /* fields before pkt_ext */
2626 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) !=
2627 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext));
2628 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd,
2629 offsetof(typeof(sta_ctxt_cmd), pkt_ext));
2630
2631 /* pkt_ext */
2632 for (i = 0;
2633 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th);
2634 i++) {
2635 u8 bw;
2636
2637 for (bw = 0;
2638 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]);
2639 bw++) {
2640 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) !=
2641 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw]));
2642
2643 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw],
2644 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw],
2645 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]));
2646 }
2647 }
2648
2649 /* fields after pkt_ext */
2650 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) -
2651 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) !=
2652 sizeof(sta_ctxt_cmd_v2) -
2653 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext));
2654 memcpy((u8 *)&sta_ctxt_cmd_v2 +
2655 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext),
2656 (u8 *)&sta_ctxt_cmd +
2657 offsetofend(typeof(sta_ctxt_cmd), pkt_ext),
2658 sizeof(sta_ctxt_cmd) -
2659 offsetofend(typeof(sta_ctxt_cmd), pkt_ext));
2660 sta_ctxt_cmd_v2.reserved3 = 0;
2661 }
2662
2663 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd))
2664 IWL_ERR(mvm, "Failed to config FW to work HE!\n");
2665 }
2666
iwl_mvm_protect_assoc(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u32 duration_override,unsigned int link_id)2667 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2668 u32 duration_override, unsigned int link_id)
2669 {
2670 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2671 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
2672
2673 if (duration_override > duration)
2674 duration = duration_override;
2675
2676 /* Try really hard to protect the session and hear a beacon
2677 * The new session protection command allows us to protect the
2678 * session for a much longer time since the firmware will internally
2679 * create two events: a 300TU one with a very high priority that
2680 * won't be fragmented which should be enough for 99% of the cases,
2681 * and another one (which we configure here to be 900TU long) which
2682 * will have a slightly lower priority, but more importantly, can be
2683 * fragmented so that it'll allow other activities to run.
2684 */
2685 if (fw_has_capa(&mvm->fw->ucode_capa,
2686 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD))
2687 iwl_mvm_schedule_session_protection(mvm, vif, 900,
2688 min_duration, false,
2689 link_id);
2690 else
2691 iwl_mvm_protect_session(mvm, vif, duration,
2692 min_duration, 500, false);
2693 }
2694
2695 /* 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)2696 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm,
2697 struct ieee80211_vif *vif,
2698 u64 changes)
2699 {
2700 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2701 int ret;
2702 int link_id;
2703
2704 /* The firmware tracks the MU-MIMO group on its own.
2705 * However, on HW restart we should restore this data.
2706 */
2707 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2708 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) {
2709 ret = iwl_mvm_update_mu_groups(mvm, vif);
2710 if (ret)
2711 IWL_ERR(mvm,
2712 "failed to update VHT MU_MIMO groups\n");
2713 }
2714
2715 iwl_mvm_recalc_multicast(mvm);
2716
2717 /* reset rssi values */
2718 for_each_mvm_vif_valid_link(mvmvif, link_id)
2719 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0;
2720
2721 iwl_mvm_bt_coex_vif_change(mvm);
2722 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2723 IEEE80211_SMPS_AUTOMATIC);
2724 if (fw_has_capa(&mvm->fw->ucode_capa,
2725 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2726 iwl_mvm_config_scan(mvm);
2727 }
2728
2729 /* Execute the common part for MLD and non-MLD modes */
2730 void
iwl_mvm_bss_info_changed_station_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,u64 changes)2731 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm,
2732 struct ieee80211_vif *vif,
2733 struct ieee80211_bss_conf *link_conf,
2734 u64 changes)
2735 {
2736 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2737 int ret;
2738
2739 if (changes & BSS_CHANGED_BEACON_INFO) {
2740 /* We received a beacon from the associated AP so
2741 * remove the session protection.
2742 */
2743 iwl_mvm_stop_session_protection(mvm, vif);
2744
2745 iwl_mvm_sf_update(mvm, vif, false);
2746 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif));
2747 }
2748
2749 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2750 /* Send power command on every beacon change,
2751 * because we may have not enabled beacon abort yet.
2752 */
2753 BSS_CHANGED_BEACON_INFO)) {
2754 ret = iwl_mvm_power_update_mac(mvm);
2755 if (ret)
2756 IWL_ERR(mvm, "failed to update power mode\n");
2757 }
2758
2759 if (changes & BSS_CHANGED_CQM) {
2760 struct iwl_mvm_vif_link_info *link_info =
2761 mvmvif->link[link_conf->link_id];
2762
2763 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n");
2764 if (link_info)
2765 link_info->bf_data.last_cqm_event = 0;
2766
2767 if (mvmvif->bf_enabled) {
2768 /* FIXME: need to update per link when FW API will
2769 * support it
2770 */
2771 ret = iwl_mvm_enable_beacon_filter(mvm, vif);
2772 if (ret)
2773 IWL_ERR(mvm,
2774 "failed to update CQM thresholds\n");
2775 }
2776 }
2777
2778 if (changes & BSS_CHANGED_BANDWIDTH)
2779 iwl_mvm_update_link_smps(vif, link_conf);
2780 }
2781
iwl_mvm_bss_info_changed_station(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf,u64 changes)2782 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2783 struct ieee80211_vif *vif,
2784 struct ieee80211_bss_conf *bss_conf,
2785 u64 changes)
2786 {
2787 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2788 int ret;
2789 int i;
2790
2791 /*
2792 * Re-calculate the tsf id, as the leader-follower relations depend
2793 * on the beacon interval, which was not known when the station
2794 * interface was added.
2795 */
2796 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) {
2797 if ((vif->bss_conf.he_support &&
2798 !iwlwifi_mod_params.disable_11ax))
2799 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);
2800
2801 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2802 }
2803
2804 /* Update MU EDCA params */
2805 if (changes & BSS_CHANGED_QOS && mvmvif->associated &&
2806 vif->cfg.assoc &&
2807 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax))
2808 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);
2809
2810 /*
2811 * If we're not associated yet, take the (new) BSSID before associating
2812 * so the firmware knows. If we're already associated, then use the old
2813 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2814 * branch for disassociation below.
2815 */
2816 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2817 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);
2818
2819 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid);
2820 if (ret)
2821 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2822
2823 /* after sending it once, adopt mac80211 data */
2824 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);
2825 mvmvif->associated = vif->cfg.assoc;
2826
2827 if (changes & BSS_CHANGED_ASSOC) {
2828 if (vif->cfg.assoc) {
2829 /* clear statistics to get clean beacon counter */
2830 iwl_mvm_request_statistics(mvm, true);
2831 for_each_mvm_vif_valid_link(mvmvif, i)
2832 memset(&mvmvif->link[i]->beacon_stats, 0,
2833 sizeof(mvmvif->link[i]->beacon_stats));
2834
2835 /* add quota for this interface */
2836 ret = iwl_mvm_update_quotas(mvm, true, NULL);
2837 if (ret) {
2838 IWL_ERR(mvm, "failed to update quotas\n");
2839 return;
2840 }
2841
2842 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2843 &mvm->status) &&
2844 !fw_has_capa(&mvm->fw->ucode_capa,
2845 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {
2846 /*
2847 * If we're restarting then the firmware will
2848 * obviously have lost synchronisation with
2849 * the AP. It will attempt to synchronise by
2850 * itself, but we can make it more reliable by
2851 * scheduling a session protection time event.
2852 *
2853 * The firmware needs to receive a beacon to
2854 * catch up with synchronisation, use 110% of
2855 * the beacon interval.
2856 *
2857 * Set a large maximum delay to allow for more
2858 * than a single interface.
2859 *
2860 * For new firmware versions, rely on the
2861 * firmware. This is relevant for DCM scenarios
2862 * only anyway.
2863 */
2864 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2865 iwl_mvm_protect_session(mvm, vif, dur, dur,
2866 5 * dur, false);
2867 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2868 &mvm->status) &&
2869 !vif->bss_conf.dtim_period) {
2870 /*
2871 * If we're not restarting and still haven't
2872 * heard a beacon (dtim period unknown) then
2873 * make sure we still have enough minimum time
2874 * remaining in the time event, since the auth
2875 * might actually have taken quite a while
2876 * (especially for SAE) and so the remaining
2877 * time could be small without us having heard
2878 * a beacon yet.
2879 */
2880 iwl_mvm_protect_assoc(mvm, vif, 0, 0);
2881 }
2882
2883 iwl_mvm_sf_update(mvm, vif, false);
2884 iwl_mvm_power_vif_assoc(mvm, vif);
2885 if (vif->p2p) {
2886 iwl_mvm_update_smps(mvm, vif,
2887 IWL_MVM_SMPS_REQ_PROT,
2888 IEEE80211_SMPS_DYNAMIC, 0);
2889 }
2890 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) {
2891 iwl_mvm_mei_host_disassociated(mvm);
2892 /*
2893 * If update fails - SF might be running in associated
2894 * mode while disassociated - which is forbidden.
2895 */
2896 ret = iwl_mvm_sf_update(mvm, vif, false);
2897 WARN_ONCE(ret &&
2898 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
2899 &mvm->status),
2900 "Failed to update SF upon disassociation\n");
2901
2902 /*
2903 * If we get an assert during the connection (after the
2904 * station has been added, but before the vif is set
2905 * to associated), mac80211 will re-add the station and
2906 * then configure the vif. Since the vif is not
2907 * associated, we would remove the station here and
2908 * this would fail the recovery.
2909 */
2910 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2911 &mvm->status)) {
2912 /* first remove remaining keys */
2913 iwl_mvm_sec_key_remove_ap(mvm, vif,
2914 &mvmvif->deflink, 0);
2915
2916 /*
2917 * Remove AP station now that
2918 * the MAC is unassoc
2919 */
2920 ret = iwl_mvm_rm_sta_id(mvm, vif,
2921 mvmvif->deflink.ap_sta_id);
2922 if (ret)
2923 IWL_ERR(mvm,
2924 "failed to remove AP station\n");
2925
2926 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA;
2927 }
2928
2929 /* remove quota for this interface */
2930 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2931 if (ret)
2932 IWL_ERR(mvm, "failed to update quotas\n");
2933
2934 /* this will take the cleared BSSID from bss_conf */
2935 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2936 if (ret)
2937 IWL_ERR(mvm,
2938 "failed to update MAC %pM (clear after unassoc)\n",
2939 vif->addr);
2940 }
2941
2942 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes);
2943 }
2944
2945 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf,
2946 changes);
2947 }
2948
iwl_mvm_start_ap_ibss_common(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int * ret)2949 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw,
2950 struct ieee80211_vif *vif,
2951 int *ret)
2952 {
2953 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2954 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2955 int i;
2956
2957 lockdep_assert_held(&mvm->mutex);
2958
2959 mvmvif->ap_assoc_sta_count = 0;
2960
2961 /* must be set before quota calculations */
2962 mvmvif->ap_ibss_active = true;
2963
2964 /* send all the early keys to the device now */
2965 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
2966 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i];
2967
2968 if (!key)
2969 continue;
2970
2971 mvmvif->ap_early_keys[i] = NULL;
2972
2973 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key);
2974 if (*ret)
2975 return true;
2976 }
2977
2978 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2979 iwl_mvm_vif_set_low_latency(mvmvif, true,
2980 LOW_LATENCY_VIF_TYPE);
2981 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);
2982 }
2983
2984 /* power updated needs to be done before quotas */
2985 iwl_mvm_power_update_mac(mvm);
2986
2987 return false;
2988 }
2989
iwl_mvm_start_ap_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)2990 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2991 struct ieee80211_vif *vif,
2992 struct ieee80211_bss_conf *link_conf)
2993 {
2994 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2995 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2996 int ret;
2997
2998 mutex_lock(&mvm->mutex);
2999
3000 /*
3001 * Re-calculate the tsf id, as the leader-follower relations depend on
3002 * the beacon interval, which was not known when the AP interface
3003 * was added.
3004 */
3005 if (vif->type == NL80211_IFTYPE_AP)
3006 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
3007
3008 /* For older devices need to send beacon template before adding mac
3009 * context. For the newer, the beacon is a resource that belongs to a
3010 * MAC, so need to send beacon template after adding the mac.
3011 */
3012 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) {
3013 /* Add the mac context */
3014 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
3015 if (ret)
3016 goto out_unlock;
3017
3018 /* Send the beacon template */
3019 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
3020 if (ret)
3021 goto out_unlock;
3022 } else {
3023 /* Send the beacon template */
3024 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
3025 if (ret)
3026 goto out_unlock;
3027
3028 /* Add the mac context */
3029 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
3030 if (ret)
3031 goto out_unlock;
3032 }
3033
3034 /* Perform the binding */
3035 ret = iwl_mvm_binding_add_vif(mvm, vif);
3036 if (ret)
3037 goto out_remove;
3038
3039 /*
3040 * This is not very nice, but the simplest:
3041 * For older FWs adding the mcast sta before the bcast station may
3042 * cause assert 0x2b00.
3043 * This is fixed in later FW so make the order of removal depend on
3044 * the TLV
3045 */
3046 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
3047 ret = iwl_mvm_add_mcast_sta(mvm, vif);
3048 if (ret)
3049 goto out_unbind;
3050 /*
3051 * Send the bcast station. At this stage the TBTT and DTIM time
3052 * events are added and applied to the scheduler
3053 */
3054 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
3055 if (ret) {
3056 iwl_mvm_rm_mcast_sta(mvm, vif);
3057 goto out_unbind;
3058 }
3059 } else {
3060 /*
3061 * Send the bcast station. At this stage the TBTT and DTIM time
3062 * events are added and applied to the scheduler
3063 */
3064 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
3065 if (ret)
3066 goto out_unbind;
3067 ret = iwl_mvm_add_mcast_sta(mvm, vif);
3068 if (ret) {
3069 iwl_mvm_send_rm_bcast_sta(mvm, vif);
3070 goto out_unbind;
3071 }
3072 }
3073
3074 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret))
3075 goto out_failed;
3076
3077 ret = iwl_mvm_update_quotas(mvm, false, NULL);
3078 if (ret)
3079 goto out_failed;
3080
3081 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
3082 if (vif->p2p && mvm->p2p_device_vif)
3083 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
3084
3085 iwl_mvm_bt_coex_vif_change(mvm);
3086
3087 /* we don't support TDLS during DCM */
3088 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3089 iwl_mvm_teardown_tdls_peers(mvm);
3090
3091 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf);
3092
3093 goto out_unlock;
3094
3095 out_failed:
3096 iwl_mvm_power_update_mac(mvm);
3097 mvmvif->ap_ibss_active = false;
3098 iwl_mvm_send_rm_bcast_sta(mvm, vif);
3099 iwl_mvm_rm_mcast_sta(mvm, vif);
3100 out_unbind:
3101 iwl_mvm_binding_remove_vif(mvm, vif);
3102 out_remove:
3103 iwl_mvm_mac_ctxt_remove(mvm, vif);
3104 out_unlock:
3105 mutex_unlock(&mvm->mutex);
3106 return ret;
3107 }
3108
iwl_mvm_start_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)3109 static int iwl_mvm_start_ap(struct ieee80211_hw *hw,
3110 struct ieee80211_vif *vif,
3111 struct ieee80211_bss_conf *link_conf)
3112 {
3113 return iwl_mvm_start_ap_ibss(hw, vif, link_conf);
3114 }
3115
iwl_mvm_start_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif)3116 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw,
3117 struct ieee80211_vif *vif)
3118 {
3119 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf);
3120 }
3121
3122 /* Common part for MLD and non-MLD ops */
iwl_mvm_stop_ap_ibss_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif)3123 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm,
3124 struct ieee80211_vif *vif)
3125 {
3126 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3127
3128 lockdep_assert_held(&mvm->mutex);
3129
3130 iwl_mvm_prepare_mac_removal(mvm, vif);
3131
3132 /* Handle AP stop while in CSA */
3133 if (rcu_access_pointer(mvm->csa_vif) == vif) {
3134 iwl_mvm_remove_time_event(mvm, mvmvif,
3135 &mvmvif->time_event_data);
3136 RCU_INIT_POINTER(mvm->csa_vif, NULL);
3137 mvmvif->csa_countdown = false;
3138 }
3139
3140 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
3141 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
3142 mvm->csa_tx_block_bcn_timeout = 0;
3143 }
3144
3145 mvmvif->ap_ibss_active = false;
3146 mvm->ap_last_beacon_gp2 = 0;
3147
3148 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
3149 iwl_mvm_vif_set_low_latency(mvmvif, false,
3150 LOW_LATENCY_VIF_TYPE);
3151 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id);
3152 }
3153
3154 iwl_mvm_bt_coex_vif_change(mvm);
3155 }
3156
iwl_mvm_stop_ap_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)3157 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
3158 struct ieee80211_vif *vif,
3159 struct ieee80211_bss_conf *link_conf)
3160 {
3161 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3162
3163 mutex_lock(&mvm->mutex);
3164
3165 iwl_mvm_stop_ap_ibss_common(mvm, vif);
3166
3167 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
3168 if (vif->p2p && mvm->p2p_device_vif)
3169 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
3170
3171 iwl_mvm_update_quotas(mvm, false, NULL);
3172
3173 iwl_mvm_ftm_responder_clear(mvm, vif);
3174
3175 /*
3176 * This is not very nice, but the simplest:
3177 * For older FWs removing the mcast sta before the bcast station may
3178 * cause assert 0x2b00.
3179 * This is fixed in later FW (which will stop beaconing when removing
3180 * bcast station).
3181 * So make the order of removal depend on the TLV
3182 */
3183 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
3184 iwl_mvm_rm_mcast_sta(mvm, vif);
3185 iwl_mvm_send_rm_bcast_sta(mvm, vif);
3186 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
3187 iwl_mvm_rm_mcast_sta(mvm, vif);
3188 iwl_mvm_binding_remove_vif(mvm, vif);
3189
3190 iwl_mvm_power_update_mac(mvm);
3191
3192 iwl_mvm_mac_ctxt_remove(mvm, vif);
3193
3194 mutex_unlock(&mvm->mutex);
3195 }
3196
iwl_mvm_stop_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)3197 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw,
3198 struct ieee80211_vif *vif,
3199 struct ieee80211_bss_conf *link_conf)
3200 {
3201 iwl_mvm_stop_ap_ibss(hw, vif, link_conf);
3202 }
3203
iwl_mvm_stop_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif)3204 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw,
3205 struct ieee80211_vif *vif)
3206 {
3207 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf);
3208 }
3209
3210 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)3211 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
3212 struct ieee80211_vif *vif,
3213 struct ieee80211_bss_conf *bss_conf,
3214 u64 changes)
3215 {
3216 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3217
3218 /* Changes will be applied when the AP/IBSS is started */
3219 if (!mvmvif->ap_ibss_active)
3220 return;
3221
3222 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
3223 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3224 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
3225 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
3226
3227 /* Need to send a new beacon template to the FW */
3228 if (changes & BSS_CHANGED_BEACON &&
3229 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf))
3230 IWL_WARN(mvm, "Failed updating beacon data\n");
3231
3232 if (changes & BSS_CHANGED_FTM_RESPONDER) {
3233 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf);
3234
3235 if (ret)
3236 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n",
3237 ret);
3238 }
3239
3240 }
3241
iwl_mvm_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf,u64 changes)3242 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
3243 struct ieee80211_vif *vif,
3244 struct ieee80211_bss_conf *bss_conf,
3245 u64 changes)
3246 {
3247 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3248
3249 mutex_lock(&mvm->mutex);
3250
3251 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle)
3252 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
3253
3254 switch (vif->type) {
3255 case NL80211_IFTYPE_STATION:
3256 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
3257 break;
3258 case NL80211_IFTYPE_AP:
3259 case NL80211_IFTYPE_ADHOC:
3260 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
3261 break;
3262 case NL80211_IFTYPE_MONITOR:
3263 if (changes & BSS_CHANGED_MU_GROUPS)
3264 iwl_mvm_update_mu_groups(mvm, vif);
3265 break;
3266 default:
3267 /* shouldn't happen */
3268 WARN_ON_ONCE(1);
3269 }
3270
3271 if (changes & BSS_CHANGED_TXPOWER) {
3272 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n",
3273 bss_conf->txpower);
3274 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
3275 }
3276
3277 mutex_unlock(&mvm->mutex);
3278 }
3279
iwl_mvm_mac_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * hw_req)3280 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3281 struct ieee80211_scan_request *hw_req)
3282 {
3283 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3284 int ret;
3285
3286 if (hw_req->req.n_channels == 0 ||
3287 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
3288 return -EINVAL;
3289
3290 mutex_lock(&mvm->mutex);
3291 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
3292 mutex_unlock(&mvm->mutex);
3293
3294 return ret;
3295 }
3296
iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)3297 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
3298 struct ieee80211_vif *vif)
3299 {
3300 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3301
3302 mutex_lock(&mvm->mutex);
3303
3304 /* Due to a race condition, it's possible that mac80211 asks
3305 * us to stop a hw_scan when it's already stopped. This can
3306 * happen, for instance, if we stopped the scan ourselves,
3307 * called ieee80211_scan_completed() and the userspace called
3308 * cancel scan scan before ieee80211_scan_work() could run.
3309 * To handle that, simply return if the scan is not running.
3310 */
3311 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
3312 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
3313
3314 mutex_unlock(&mvm->mutex);
3315 }
3316
3317 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)3318 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3319 struct ieee80211_sta *sta, u16 tids,
3320 int num_frames,
3321 enum ieee80211_frame_release_type reason,
3322 bool more_data)
3323 {
3324 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3325
3326 /* Called when we need to transmit (a) frame(s) from mac80211 */
3327
3328 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
3329 tids, more_data, false);
3330 }
3331
3332 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)3333 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
3334 struct ieee80211_sta *sta, u16 tids,
3335 int num_frames,
3336 enum ieee80211_frame_release_type reason,
3337 bool more_data)
3338 {
3339 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3340
3341 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
3342
3343 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
3344 tids, more_data, true);
3345 }
3346
__iwl_mvm_mac_sta_notify(struct ieee80211_hw * hw,enum sta_notify_cmd cmd,struct ieee80211_sta * sta)3347 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
3348 enum sta_notify_cmd cmd,
3349 struct ieee80211_sta *sta)
3350 {
3351 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3352 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3353 unsigned long txqs = 0, tids = 0;
3354 int tid;
3355
3356 /*
3357 * If we have TVQM then we get too high queue numbers - luckily
3358 * we really shouldn't get here with that because such hardware
3359 * should have firmware supporting buffer station offload.
3360 */
3361 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
3362 return;
3363
3364 spin_lock_bh(&mvmsta->lock);
3365 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) {
3366 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
3367
3368 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
3369 continue;
3370
3371 __set_bit(tid_data->txq_id, &txqs);
3372
3373 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
3374 continue;
3375
3376 __set_bit(tid, &tids);
3377 }
3378
3379 switch (cmd) {
3380 case STA_NOTIFY_SLEEP:
3381 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3382 ieee80211_sta_set_buffered(sta, tid, true);
3383
3384 if (txqs)
3385 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
3386 /*
3387 * The fw updates the STA to be asleep. Tx packets on the Tx
3388 * queues to this station will not be transmitted. The fw will
3389 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
3390 */
3391 break;
3392 case STA_NOTIFY_AWAKE:
3393 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA))
3394 break;
3395
3396 if (txqs)
3397 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
3398 iwl_mvm_sta_modify_ps_wake(mvm, sta);
3399 break;
3400 default:
3401 break;
3402 }
3403 spin_unlock_bh(&mvmsta->lock);
3404 }
3405
iwl_mvm_mac_sta_notify(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum sta_notify_cmd cmd,struct ieee80211_sta * sta)3406 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3407 enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
3408 {
3409 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
3410 }
3411
iwl_mvm_sta_pm_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)3412 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
3413 {
3414 struct iwl_rx_packet *pkt = rxb_addr(rxb);
3415 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
3416 struct ieee80211_sta *sta;
3417 struct iwl_mvm_sta *mvmsta;
3418 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
3419
3420 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations))
3421 return;
3422
3423 rcu_read_lock();
3424 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
3425 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
3426 rcu_read_unlock();
3427 return;
3428 }
3429
3430 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3431
3432 if (!mvmsta->vif ||
3433 mvmsta->vif->type != NL80211_IFTYPE_AP) {
3434 rcu_read_unlock();
3435 return;
3436 }
3437
3438 if (mvmsta->sleeping != sleeping) {
3439 mvmsta->sleeping = sleeping;
3440 __iwl_mvm_mac_sta_notify(mvm->hw,
3441 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
3442 sta);
3443 ieee80211_sta_ps_transition(sta, sleeping);
3444 }
3445
3446 if (sleeping) {
3447 switch (notif->type) {
3448 case IWL_MVM_PM_EVENT_AWAKE:
3449 case IWL_MVM_PM_EVENT_ASLEEP:
3450 break;
3451 case IWL_MVM_PM_EVENT_UAPSD:
3452 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
3453 break;
3454 case IWL_MVM_PM_EVENT_PS_POLL:
3455 ieee80211_sta_pspoll(sta);
3456 break;
3457 default:
3458 break;
3459 }
3460 }
3461
3462 rcu_read_unlock();
3463 }
3464
iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3465 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
3466 struct ieee80211_vif *vif,
3467 struct ieee80211_sta *sta)
3468 {
3469 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3470 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3471 unsigned int link_id;
3472
3473 /*
3474 * This is called before mac80211 does RCU synchronisation,
3475 * so here we already invalidate our internal RCU-protected
3476 * station pointer. The rest of the code will thus no longer
3477 * be able to find the station this way, and we don't rely
3478 * on further RCU synchronisation after the sta_state()
3479 * callback deleted the station.
3480 * Since there's mvm->mutex here, no need to have RCU lock for
3481 * mvm_sta->link access.
3482 */
3483 mutex_lock(&mvm->mutex);
3484 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) {
3485 struct iwl_mvm_link_sta *link_sta;
3486 u32 sta_id;
3487
3488 if (!mvm_sta->link[link_id])
3489 continue;
3490
3491 link_sta = rcu_dereference_protected(mvm_sta->link[link_id],
3492 lockdep_is_held(&mvm->mutex));
3493 sta_id = link_sta->sta_id;
3494 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) {
3495 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id],
3496 ERR_PTR(-ENOENT));
3497 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL);
3498 }
3499 }
3500 mutex_unlock(&mvm->mutex);
3501 }
3502
iwl_mvm_check_uapsd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const u8 * bssid)3503 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
3504 const u8 *bssid)
3505 {
3506 int i;
3507
3508 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
3509 struct iwl_mvm_tcm_mac *mdata;
3510
3511 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id];
3512 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate);
3513 mdata->opened_rx_ba_sessions = false;
3514 }
3515
3516 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
3517 return;
3518
3519 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
3520 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3521 return;
3522 }
3523
3524 if (!vif->p2p &&
3525 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
3526 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3527 return;
3528 }
3529
3530 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) {
3531 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) {
3532 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3533 return;
3534 }
3535 }
3536
3537 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
3538 }
3539
3540 static void
iwl_mvm_tdls_check_trigger(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u8 * peer_addr,enum nl80211_tdls_operation action)3541 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
3542 struct ieee80211_vif *vif, u8 *peer_addr,
3543 enum nl80211_tdls_operation action)
3544 {
3545 struct iwl_fw_dbg_trigger_tlv *trig;
3546 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
3547
3548 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
3549 FW_DBG_TRIGGER_TDLS);
3550 if (!trig)
3551 return;
3552
3553 tdls_trig = (void *)trig->data;
3554
3555 if (!(tdls_trig->action_bitmap & BIT(action)))
3556 return;
3557
3558 if (tdls_trig->peer_mode &&
3559 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
3560 return;
3561
3562 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
3563 "TDLS event occurred, peer %pM, action %d",
3564 peer_addr, action);
3565 }
3566
3567 struct iwl_mvm_he_obss_narrow_bw_ru_data {
3568 bool tolerated;
3569 };
3570
iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy * wiphy,struct cfg80211_bss * bss,void * _data)3571 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy,
3572 struct cfg80211_bss *bss,
3573 void *_data)
3574 {
3575 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data;
3576 const struct cfg80211_bss_ies *ies;
3577 const struct element *elem;
3578
3579 rcu_read_lock();
3580 ies = rcu_dereference(bss->ies);
3581 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data,
3582 ies->len);
3583
3584 if (!elem || elem->datalen < 10 ||
3585 !(elem->data[10] &
3586 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) {
3587 data->tolerated = false;
3588 }
3589 rcu_read_unlock();
3590 }
3591
3592 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)3593 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,
3594 struct ieee80211_vif *vif,
3595 unsigned int link_id,
3596 struct ieee80211_bss_conf *link_conf)
3597 {
3598 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3599 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = {
3600 .tolerated = true,
3601 };
3602
3603 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan ||
3604 !mvmvif->link[link_id]))
3605 return;
3606
3607 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) {
3608 mvmvif->link[link_id]->he_ru_2mhz_block = false;
3609 return;
3610 }
3611
3612 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper,
3613 iwl_mvm_check_he_obss_narrow_bw_ru_iter,
3614 &iter_data);
3615
3616 /*
3617 * If there is at least one AP on radar channel that cannot
3618 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU.
3619 */
3620 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated;
3621 }
3622
iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm * mvm,struct ieee80211_vif * vif)3623 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm,
3624 struct ieee80211_vif *vif)
3625 {
3626 struct ieee80211_supported_band *sband;
3627 const struct ieee80211_sta_he_cap *he_cap;
3628
3629 if (vif->type != NL80211_IFTYPE_STATION)
3630 return;
3631
3632 if (!mvm->cca_40mhz_workaround)
3633 return;
3634
3635 /* decrement and check that we reached zero */
3636 mvm->cca_40mhz_workaround--;
3637 if (mvm->cca_40mhz_workaround)
3638 return;
3639
3640 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
3641
3642 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
3643
3644 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
3645
3646 if (he_cap) {
3647 /* we know that ours is writable */
3648 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
3649
3650 he->he_cap_elem.phy_cap_info[0] |=
3651 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
3652 }
3653 }
3654
iwl_mvm_mei_host_associated(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mvm_sta * mvm_sta)3655 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm,
3656 struct ieee80211_vif *vif,
3657 struct iwl_mvm_sta *mvm_sta)
3658 {
3659 #if IS_ENABLED(CONFIG_IWLMEI)
3660 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3661 struct iwl_mei_conn_info conn_info = {
3662 .ssid_len = vif->cfg.ssid_len,
3663 };
3664
3665 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3666 return;
3667
3668 if (!mvm->mei_registered)
3669 return;
3670
3671 /* FIXME: MEI needs to be updated for MLO */
3672 if (!vif->bss_conf.chanreq.oper.chan)
3673 return;
3674
3675 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value;
3676
3677 switch (mvm_sta->pairwise_cipher) {
3678 case WLAN_CIPHER_SUITE_TKIP:
3679 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP;
3680 break;
3681 case WLAN_CIPHER_SUITE_CCMP:
3682 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP;
3683 break;
3684 case WLAN_CIPHER_SUITE_GCMP:
3685 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP;
3686 break;
3687 case WLAN_CIPHER_SUITE_GCMP_256:
3688 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256;
3689 break;
3690 case 0:
3691 /* open profile */
3692 break;
3693 default:
3694 /* cipher not supported, don't send anything to iwlmei */
3695 return;
3696 }
3697
3698 switch (mvmvif->rekey_data.akm) {
3699 case WLAN_AKM_SUITE_SAE & 0xff:
3700 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE;
3701 break;
3702 case WLAN_AKM_SUITE_PSK & 0xff:
3703 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK;
3704 break;
3705 case WLAN_AKM_SUITE_8021X & 0xff:
3706 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA;
3707 break;
3708 case 0:
3709 /* open profile */
3710 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN;
3711 break;
3712 default:
3713 /* auth method / AKM not supported */
3714 /* TODO: All the FT vesions of these? */
3715 return;
3716 }
3717
3718 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len);
3719 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN);
3720
3721 /* TODO: add support for collocated AP data */
3722 iwl_mei_host_associated(&conn_info, NULL);
3723 #endif
3724 }
3725
iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool force_assoc_off)3726 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm,
3727 struct ieee80211_vif *vif,
3728 bool force_assoc_off)
3729 {
3730 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL);
3731 }
3732
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)3733 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
3734 struct ieee80211_vif *vif,
3735 struct ieee80211_sta *sta,
3736 enum ieee80211_sta_state old_state,
3737 enum ieee80211_sta_state new_state)
3738 {
3739 static const struct iwl_mvm_sta_state_ops callbacks = {
3740 .add_sta = iwl_mvm_add_sta,
3741 .update_sta = iwl_mvm_update_sta,
3742 .rm_sta = iwl_mvm_rm_sta,
3743 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper,
3744 };
3745
3746 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state,
3747 &callbacks);
3748 }
3749
3750 /* FIXME: temporary making two assumptions in all sta handling functions:
3751 * (1) when setting sta state, the link exists and protected
3752 * (2) if a link is valid in sta then it's valid in vif (can
3753 * use same index in the link array)
3754 */
iwl_mvm_rs_rate_init_all_links(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3755 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm,
3756 struct ieee80211_vif *vif,
3757 struct ieee80211_sta *sta)
3758 {
3759 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3760 unsigned int link_id;
3761
3762 for_each_mvm_vif_valid_link(mvmvif, link_id) {
3763 struct ieee80211_bss_conf *conf =
3764 link_conf_dereference_check(vif, link_id);
3765 struct ieee80211_link_sta *link_sta =
3766 link_sta_dereference_check(sta, link_id);
3767
3768 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt)
3769 continue;
3770
3771 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta,
3772 mvmvif->link[link_id]->phy_ctxt->channel->band);
3773 }
3774 }
3775
3776 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16
3777
iwl_mvm_vif_conf_from_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3778 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm,
3779 struct ieee80211_vif *vif,
3780 struct ieee80211_sta *sta)
3781 {
3782 struct ieee80211_link_sta *link_sta;
3783 unsigned int link_id;
3784
3785 /* Beacon interval check - firmware will crash if the beacon
3786 * interval is less than 16. We can't avoid connecting at all,
3787 * so refuse the station state change, this will cause mac80211
3788 * to abandon attempts to connect to this AP, and eventually
3789 * wpa_s will blocklist the AP...
3790 */
3791
3792 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3793 struct ieee80211_bss_conf *link_conf =
3794 link_conf_dereference_protected(vif, link_id);
3795
3796 if (!link_conf)
3797 continue;
3798
3799 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) {
3800 IWL_ERR(mvm,
3801 "Beacon interval %d for AP %pM is too small\n",
3802 link_conf->beacon_int, link_sta->addr);
3803 return false;
3804 }
3805
3806 link_conf->he_support = link_sta->he_cap.has_he;
3807 }
3808
3809 return true;
3810 }
3811
iwl_mvm_vif_set_he_support(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool is_sta)3812 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw,
3813 struct ieee80211_vif *vif,
3814 struct ieee80211_sta *sta,
3815 bool is_sta)
3816 {
3817 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3818 struct ieee80211_link_sta *link_sta;
3819 unsigned int link_id;
3820
3821 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3822 struct ieee80211_bss_conf *link_conf =
3823 link_conf_dereference_protected(vif, link_id);
3824
3825 if (!link_conf || !mvmvif->link[link_id])
3826 continue;
3827
3828 link_conf->he_support = link_sta->he_cap.has_he;
3829
3830 if (is_sta) {
3831 mvmvif->link[link_id]->he_ru_2mhz_block = false;
3832 if (link_sta->he_cap.has_he)
3833 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif,
3834 link_id,
3835 link_conf);
3836 }
3837 }
3838 }
3839
3840 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)3841 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm,
3842 struct ieee80211_vif *vif,
3843 struct ieee80211_sta *sta,
3844 const struct iwl_mvm_sta_state_ops *callbacks)
3845 {
3846 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3847 struct ieee80211_link_sta *link_sta;
3848 unsigned int i;
3849 int ret;
3850
3851 lockdep_assert_held(&mvm->mutex);
3852
3853 if (vif->type == NL80211_IFTYPE_STATION &&
3854 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta))
3855 return -EINVAL;
3856
3857 if (sta->tdls &&
3858 (vif->p2p ||
3859 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT ||
3860 iwl_mvm_phy_ctx_count(mvm) > 1)) {
3861 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
3862 return -EBUSY;
3863 }
3864
3865 ret = callbacks->add_sta(mvm, vif, sta);
3866 if (sta->tdls && ret == 0) {
3867 iwl_mvm_recalc_tdls_state(mvm, vif, true);
3868 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3869 NL80211_TDLS_SETUP);
3870 }
3871
3872 if (ret)
3873 return ret;
3874
3875 for_each_sta_active_link(vif, sta, link_sta, i)
3876 link_sta->agg.max_rc_amsdu_len = 1;
3877
3878 ieee80211_sta_recalc_aggregates(sta);
3879
3880 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
3881 mvmvif->ap_sta = sta;
3882
3883 /*
3884 * Initialize the rates here already - this really tells
3885 * the firmware only what the supported legacy rates are
3886 * (may be) since it's initialized already from what the
3887 * AP advertised in the beacon/probe response. This will
3888 * allow the firmware to send auth/assoc frames with one
3889 * of the supported rates already, rather than having to
3890 * use a mandatory rate.
3891 * If we're the AP, we'll just assume mandatory rates at
3892 * this point, but we know nothing about the STA anyway.
3893 */
3894 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3895
3896 return 0;
3897 }
3898
3899 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)3900 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw,
3901 struct iwl_mvm *mvm,
3902 struct ieee80211_vif *vif,
3903 struct ieee80211_sta *sta,
3904 const struct iwl_mvm_sta_state_ops *callbacks)
3905 {
3906 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3907 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3908 struct ieee80211_link_sta *link_sta;
3909 unsigned int link_id;
3910
3911 lockdep_assert_held(&mvm->mutex);
3912
3913 if (vif->type == NL80211_IFTYPE_AP) {
3914 iwl_mvm_vif_set_he_support(hw, vif, sta, false);
3915 mvmvif->ap_assoc_sta_count++;
3916 callbacks->mac_ctxt_changed(mvm, vif, false);
3917
3918 /* since the below is not for MLD API, it's ok to use
3919 * the default bss_conf
3920 */
3921 if (!mvm->mld_api_is_used &&
3922 (vif->bss_conf.he_support &&
3923 !iwlwifi_mod_params.disable_11ax))
3924 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id);
3925 } else if (vif->type == NL80211_IFTYPE_STATION) {
3926 iwl_mvm_vif_set_he_support(hw, vif, sta, true);
3927
3928 callbacks->mac_ctxt_changed(mvm, vif, false);
3929
3930 if (!mvm->mld_api_is_used)
3931 goto out;
3932
3933 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3934 struct ieee80211_bss_conf *link_conf =
3935 link_conf_dereference_protected(vif, link_id);
3936
3937 if (WARN_ON(!link_conf))
3938 return -EINVAL;
3939 if (!mvmvif->link[link_id])
3940 continue;
3941
3942 iwl_mvm_link_changed(mvm, vif, link_conf,
3943 LINK_CONTEXT_MODIFY_ALL &
3944 ~LINK_CONTEXT_MODIFY_ACTIVE,
3945 true);
3946 }
3947 }
3948
3949 out:
3950 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3951
3952 return callbacks->update_sta(mvm, vif, sta);
3953 }
3954
3955 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)3956 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm,
3957 struct ieee80211_vif *vif,
3958 struct ieee80211_sta *sta,
3959 const struct iwl_mvm_sta_state_ops *callbacks)
3960 {
3961 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3962 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3963
3964 lockdep_assert_held(&mvm->mutex);
3965
3966 /* we don't support TDLS during DCM */
3967 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3968 iwl_mvm_teardown_tdls_peers(mvm);
3969
3970 if (sta->tdls) {
3971 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3972 NL80211_TDLS_ENABLE_LINK);
3973 } else {
3974 /* enable beacon filtering */
3975 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif));
3976
3977 mvmvif->authorized = 1;
3978
3979 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
3980 mvmvif->link_selection_res = vif->active_links;
3981 mvmvif->link_selection_primary =
3982 vif->active_links ? __ffs(vif->active_links) : 0;
3983 }
3984
3985 callbacks->mac_ctxt_changed(mvm, vif, false);
3986 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta);
3987
3988 memset(&mvmvif->last_esr_exit, 0,
3989 sizeof(mvmvif->last_esr_exit));
3990
3991 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0);
3992
3993 /* Block until FW notif will arrive */
3994 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, 0);
3995
3996 /* when client is authorized (AP station marked as such),
3997 * try to enable the best link(s).
3998 */
3999 if (vif->type == NL80211_IFTYPE_STATION &&
4000 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
4001 iwl_mvm_select_links(mvm, vif);
4002 }
4003
4004 mvm_sta->authorized = true;
4005
4006 /* MFP is set by default before the station is authorized.
4007 * Clear it here in case it's not used.
4008 */
4009 if (!sta->mfp) {
4010 int ret = callbacks->update_sta(mvm, vif, sta);
4011
4012 if (ret)
4013 return ret;
4014 }
4015
4016 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4017
4018 return 0;
4019 }
4020
4021 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)4022 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm,
4023 struct ieee80211_vif *vif,
4024 struct ieee80211_sta *sta,
4025 const struct iwl_mvm_sta_state_ops *callbacks)
4026 {
4027 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4028 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4029
4030 lockdep_assert_held(&mvm->mutex);
4031
4032 mvmsta->authorized = false;
4033
4034 /* once we move into assoc state, need to update rate scale to
4035 * disable using wide bandwidth
4036 */
4037 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4038
4039 if (!sta->tdls) {
4040 /* Set this but don't call iwl_mvm_mac_ctxt_changed()
4041 * yet to avoid sending high prio again for a little
4042 * time.
4043 */
4044 mvmvif->authorized = 0;
4045 mvmvif->link_selection_res = 0;
4046
4047 /* disable beacon filtering */
4048 iwl_mvm_disable_beacon_filter(mvm, vif);
4049
4050 wiphy_delayed_work_cancel(mvm->hw->wiphy,
4051 &mvmvif->prevent_esr_done_wk);
4052
4053 wiphy_delayed_work_cancel(mvm->hw->wiphy,
4054 &mvmvif->mlo_int_scan_wk);
4055
4056 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk);
4057
4058 /* No need for the periodic statistics anymore */
4059 if (ieee80211_vif_is_mld(vif) && mvmvif->esr_active)
4060 iwl_mvm_request_periodic_system_statistics(mvm, false);
4061 }
4062
4063 return 0;
4064 }
4065
4066 /* 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)4067 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw,
4068 struct ieee80211_vif *vif,
4069 struct ieee80211_sta *sta,
4070 enum ieee80211_sta_state old_state,
4071 enum ieee80211_sta_state new_state,
4072 const struct iwl_mvm_sta_state_ops *callbacks)
4073 {
4074 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4075 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4076 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
4077 struct ieee80211_link_sta *link_sta;
4078 unsigned int link_id;
4079 int ret;
4080
4081 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
4082 sta->addr, old_state, new_state);
4083
4084 /*
4085 * If we are in a STA removal flow and in DQA mode:
4086 *
4087 * This is after the sync_rcu part, so the queues have already been
4088 * flushed. No more TXs on their way in mac80211's path, and no more in
4089 * the queues.
4090 * Also, we won't be getting any new TX frames for this station.
4091 * What we might have are deferred TX frames that need to be taken care
4092 * of.
4093 *
4094 * Drop any still-queued deferred-frame before removing the STA, and
4095 * make sure the worker is no longer handling frames for this STA.
4096 */
4097 if (old_state == IEEE80211_STA_NONE &&
4098 new_state == IEEE80211_STA_NOTEXIST) {
4099 flush_work(&mvm->add_stream_wk);
4100
4101 /*
4102 * No need to make sure deferred TX indication is off since the
4103 * worker will already remove it if it was on
4104 */
4105
4106 /*
4107 * Additionally, reset the 40 MHz capability if we disconnected
4108 * from the AP now.
4109 */
4110 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif);
4111
4112 /* Also free dup data just in case any assertions below fail */
4113 kfree(mvm_sta->dup_data);
4114 }
4115
4116 mutex_lock(&mvm->mutex);
4117
4118 /* this would be a mac80211 bug ... but don't crash, unless we had a
4119 * firmware crash while we were activating a link, in which case it is
4120 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in
4121 * recovery flow since we spit tons of error messages anyway.
4122 */
4123 for_each_sta_active_link(vif, sta, link_sta, link_id) {
4124 if (WARN_ON_ONCE(!mvmvif->link[link_id] ||
4125 !mvmvif->link[link_id]->phy_ctxt)) {
4126 mutex_unlock(&mvm->mutex);
4127 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
4128 &mvm->status) ? 0 : -EINVAL;
4129 }
4130 }
4131
4132 /* track whether or not the station is associated */
4133 mvm_sta->sta_state = new_state;
4134
4135 if (old_state == IEEE80211_STA_NOTEXIST &&
4136 new_state == IEEE80211_STA_NONE) {
4137 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta,
4138 callbacks);
4139 if (ret < 0)
4140 goto out_unlock;
4141 } else if (old_state == IEEE80211_STA_NONE &&
4142 new_state == IEEE80211_STA_AUTH) {
4143 /*
4144 * EBS may be disabled due to previous failures reported by FW.
4145 * Reset EBS status here assuming environment has been changed.
4146 */
4147 mvm->last_ebs_successful = true;
4148 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
4149 ret = 0;
4150 } else if (old_state == IEEE80211_STA_AUTH &&
4151 new_state == IEEE80211_STA_ASSOC) {
4152 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta,
4153 callbacks);
4154 } else if (old_state == IEEE80211_STA_ASSOC &&
4155 new_state == IEEE80211_STA_AUTHORIZED) {
4156 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta,
4157 callbacks);
4158 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
4159 new_state == IEEE80211_STA_ASSOC) {
4160 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta,
4161 callbacks);
4162 } else if (old_state == IEEE80211_STA_ASSOC &&
4163 new_state == IEEE80211_STA_AUTH) {
4164 if (vif->type == NL80211_IFTYPE_AP) {
4165 mvmvif->ap_assoc_sta_count--;
4166 callbacks->mac_ctxt_changed(mvm, vif, false);
4167 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
4168 iwl_mvm_stop_session_protection(mvm, vif);
4169 ret = 0;
4170 } else if (old_state == IEEE80211_STA_AUTH &&
4171 new_state == IEEE80211_STA_NONE) {
4172 ret = 0;
4173 } else if (old_state == IEEE80211_STA_NONE &&
4174 new_state == IEEE80211_STA_NOTEXIST) {
4175 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) {
4176 iwl_mvm_stop_session_protection(mvm, vif);
4177 mvmvif->ap_sta = NULL;
4178 }
4179 ret = callbacks->rm_sta(mvm, vif, sta);
4180 if (sta->tdls) {
4181 iwl_mvm_recalc_tdls_state(mvm, vif, false);
4182 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
4183 NL80211_TDLS_DISABLE_LINK);
4184 }
4185
4186 if (unlikely(ret &&
4187 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
4188 &mvm->status)))
4189 ret = 0;
4190 } else {
4191 ret = -EIO;
4192 }
4193 out_unlock:
4194 mutex_unlock(&mvm->mutex);
4195
4196 if (sta->tdls && ret == 0) {
4197 if (old_state == IEEE80211_STA_NOTEXIST &&
4198 new_state == IEEE80211_STA_NONE)
4199 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
4200 else if (old_state == IEEE80211_STA_NONE &&
4201 new_state == IEEE80211_STA_NOTEXIST)
4202 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
4203 }
4204
4205 return ret;
4206 }
4207
iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw * hw,u32 value)4208 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
4209 {
4210 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4211
4212 mvm->rts_threshold = value;
4213
4214 return 0;
4215 }
4216
iwl_mvm_sta_rc_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u32 changed)4217 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4218 struct ieee80211_sta *sta, u32 changed)
4219 {
4220 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4221
4222 if (changed & (IEEE80211_RC_BW_CHANGED |
4223 IEEE80211_RC_SUPP_RATES_CHANGED |
4224 IEEE80211_RC_NSS_CHANGED))
4225 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4226
4227 if (vif->type == NL80211_IFTYPE_STATION &&
4228 changed & IEEE80211_RC_NSS_CHANGED)
4229 iwl_mvm_sf_update(mvm, vif, false);
4230 }
4231
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)4232 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
4233 struct ieee80211_vif *vif,
4234 unsigned int link_id, u16 ac,
4235 const struct ieee80211_tx_queue_params *params)
4236 {
4237 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4238 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4239
4240 mvmvif->deflink.queue_params[ac] = *params;
4241
4242 /*
4243 * No need to update right away, we'll get BSS_CHANGED_QOS
4244 * The exception is P2P_DEVICE interface which needs immediate update.
4245 */
4246 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
4247 int ret;
4248
4249 mutex_lock(&mvm->mutex);
4250 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
4251 mutex_unlock(&mvm->mutex);
4252 return ret;
4253 }
4254 return 0;
4255 }
4256
iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)4257 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
4258 struct ieee80211_vif *vif,
4259 struct ieee80211_prep_tx_info *info)
4260 {
4261 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4262
4263 mutex_lock(&mvm->mutex);
4264 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id);
4265 mutex_unlock(&mvm->mutex);
4266 }
4267
iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)4268 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw,
4269 struct ieee80211_vif *vif,
4270 struct ieee80211_prep_tx_info *info)
4271 {
4272 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4273
4274 /* for successful cases (auth/assoc), don't cancel session protection */
4275 if (info->success)
4276 return;
4277
4278 mutex_lock(&mvm->mutex);
4279 iwl_mvm_stop_session_protection(mvm, vif);
4280 mutex_unlock(&mvm->mutex);
4281 }
4282
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)4283 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
4284 struct ieee80211_vif *vif,
4285 struct cfg80211_sched_scan_request *req,
4286 struct ieee80211_scan_ies *ies)
4287 {
4288 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4289
4290 int ret;
4291
4292 mutex_lock(&mvm->mutex);
4293
4294 if (!vif->cfg.idle) {
4295 ret = -EBUSY;
4296 goto out;
4297 }
4298
4299 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
4300
4301 out:
4302 mutex_unlock(&mvm->mutex);
4303 return ret;
4304 }
4305
iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw * hw,struct ieee80211_vif * vif)4306 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
4307 struct ieee80211_vif *vif)
4308 {
4309 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4310 int ret;
4311
4312 mutex_lock(&mvm->mutex);
4313
4314 /* Due to a race condition, it's possible that mac80211 asks
4315 * us to stop a sched_scan when it's already stopped. This
4316 * can happen, for instance, if we stopped the scan ourselves,
4317 * called ieee80211_sched_scan_stopped() and the userspace called
4318 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
4319 * could run. To handle this, simply return if the scan is
4320 * not running.
4321 */
4322 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
4323 mutex_unlock(&mvm->mutex);
4324 return 0;
4325 }
4326
4327 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
4328 mutex_unlock(&mvm->mutex);
4329 iwl_mvm_wait_for_async_handlers(mvm);
4330
4331 return ret;
4332 }
4333
__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)4334 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
4335 enum set_key_cmd cmd,
4336 struct ieee80211_vif *vif,
4337 struct ieee80211_sta *sta,
4338 struct ieee80211_key_conf *key)
4339 {
4340 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4341 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4342 struct iwl_mvm_sta *mvmsta = NULL;
4343 struct iwl_mvm_key_pn *ptk_pn = NULL;
4344 int keyidx = key->keyidx;
4345 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);
4346 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);
4347 int ret, i;
4348 u8 key_offset;
4349
4350 if (sta)
4351 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4352
4353 switch (key->cipher) {
4354 case WLAN_CIPHER_SUITE_TKIP:
4355 if (!mvm->trans->trans_cfg->gen2) {
4356 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
4357 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
4358 } else if (vif->type == NL80211_IFTYPE_STATION) {
4359 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE;
4360 } else {
4361 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n");
4362 return -EOPNOTSUPP;
4363 }
4364 break;
4365 case WLAN_CIPHER_SUITE_CCMP:
4366 case WLAN_CIPHER_SUITE_GCMP:
4367 case WLAN_CIPHER_SUITE_GCMP_256:
4368 if (!iwl_mvm_has_new_tx_api(mvm))
4369 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
4370 break;
4371 case WLAN_CIPHER_SUITE_AES_CMAC:
4372 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
4373 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
4374 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
4375 break;
4376 case WLAN_CIPHER_SUITE_WEP40:
4377 case WLAN_CIPHER_SUITE_WEP104:
4378 if (vif->type == NL80211_IFTYPE_STATION)
4379 break;
4380 if (iwl_mvm_has_new_tx_api(mvm))
4381 return -EOPNOTSUPP;
4382 /* support HW crypto on TX */
4383 return 0;
4384 default:
4385 return -EOPNOTSUPP;
4386 }
4387
4388 switch (cmd) {
4389 case SET_KEY:
4390 if (vif->type == NL80211_IFTYPE_STATION &&
4391 (keyidx == 6 || keyidx == 7))
4392 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6],
4393 key);
4394
4395 if ((vif->type == NL80211_IFTYPE_ADHOC ||
4396 vif->type == NL80211_IFTYPE_AP) && !sta) {
4397 /*
4398 * GTK on AP interface is a TX-only key, return 0;
4399 * on IBSS they're per-station and because we're lazy
4400 * we don't support them for RX, so do the same.
4401 * CMAC/GMAC in AP/IBSS modes must be done in software
4402 * on older NICs.
4403 *
4404 * Except, of course, beacon protection - it must be
4405 * offloaded since we just set a beacon template, and
4406 * then we must also offload the IGTK (not just BIGTK)
4407 * for firmware reasons.
4408 *
4409 * So just check for beacon protection - if we don't
4410 * have it we cannot get here with keyidx >= 6, and
4411 * if we do have it we need to send the key to FW in
4412 * all cases (CMAC/GMAC).
4413 */
4414 if (!wiphy_ext_feature_isset(hw->wiphy,
4415 NL80211_EXT_FEATURE_BEACON_PROTECTION) &&
4416 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
4417 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
4418 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) {
4419 ret = -EOPNOTSUPP;
4420 break;
4421 }
4422
4423 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
4424 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
4425 !iwl_mvm_has_new_tx_api(mvm)) {
4426 key->hw_key_idx = STA_KEY_IDX_INVALID;
4427 ret = 0;
4428 break;
4429 }
4430
4431 if (!mvmvif->ap_ibss_active) {
4432 for (i = 0;
4433 i < ARRAY_SIZE(mvmvif->ap_early_keys);
4434 i++) {
4435 if (!mvmvif->ap_early_keys[i]) {
4436 mvmvif->ap_early_keys[i] = key;
4437 break;
4438 }
4439 }
4440
4441 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys))
4442 ret = -ENOSPC;
4443 else
4444 ret = 0;
4445
4446 break;
4447 }
4448 }
4449
4450 /* During FW restart, in order to restore the state as it was,
4451 * don't try to reprogram keys we previously failed for.
4452 */
4453 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
4454 key->hw_key_idx == STA_KEY_IDX_INVALID) {
4455 IWL_DEBUG_MAC80211(mvm,
4456 "skip invalid idx key programming during restart\n");
4457 ret = 0;
4458 break;
4459 }
4460
4461 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
4462 mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
4463 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
4464 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
4465 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
4466 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
4467 struct ieee80211_key_seq seq;
4468 int tid, q;
4469
4470 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
4471 ptk_pn = kzalloc(struct_size(ptk_pn, q,
4472 mvm->trans->num_rx_queues),
4473 GFP_KERNEL);
4474 if (!ptk_pn) {
4475 ret = -ENOMEM;
4476 break;
4477 }
4478
4479 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
4480 ieee80211_get_key_rx_seq(key, tid, &seq);
4481 for (q = 0; q < mvm->trans->num_rx_queues; q++)
4482 memcpy(ptk_pn->q[q].pn[tid],
4483 seq.ccmp.pn,
4484 IEEE80211_CCMP_PN_LEN);
4485 }
4486
4487 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
4488 }
4489
4490 /* in HW restart reuse the index, otherwise request a new one */
4491 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
4492 key_offset = key->hw_key_idx;
4493 else
4494 key_offset = STA_KEY_IDX_INVALID;
4495
4496 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4497 mvmsta->pairwise_cipher = key->cipher;
4498
4499 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n",
4500 sta ? sta->addr : NULL, key->keyidx);
4501
4502 if (sec_key_ver)
4503 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key);
4504 else
4505 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
4506
4507 if (ret) {
4508 IWL_WARN(mvm, "set key failed\n");
4509 key->hw_key_idx = STA_KEY_IDX_INVALID;
4510 if (ptk_pn) {
4511 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
4512 kfree(ptk_pn);
4513 }
4514 /*
4515 * can't add key for RX, but we don't need it
4516 * in the device for TX so still return 0,
4517 * unless we have new TX API where we cannot
4518 * put key material into the TX_CMD
4519 */
4520 if (iwl_mvm_has_new_tx_api(mvm))
4521 ret = -EOPNOTSUPP;
4522 else
4523 ret = 0;
4524 }
4525
4526 break;
4527 case DISABLE_KEY:
4528 if (vif->type == NL80211_IFTYPE_STATION &&
4529 (keyidx == 6 || keyidx == 7))
4530 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6],
4531 NULL);
4532
4533 ret = -ENOENT;
4534 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
4535 if (mvmvif->ap_early_keys[i] == key) {
4536 mvmvif->ap_early_keys[i] = NULL;
4537 ret = 0;
4538 }
4539 }
4540
4541 /* found in pending list - don't do anything else */
4542 if (ret == 0)
4543 break;
4544
4545 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
4546 ret = 0;
4547 break;
4548 }
4549
4550 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
4551 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
4552 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
4553 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
4554 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
4555 ptk_pn = rcu_dereference_protected(
4556 mvmsta->ptk_pn[keyidx],
4557 lockdep_is_held(&mvm->mutex));
4558 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
4559 if (ptk_pn)
4560 kfree_rcu(ptk_pn, rcu_head);
4561 }
4562
4563 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
4564 if (sec_key_ver)
4565 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key);
4566 else
4567 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
4568 break;
4569 default:
4570 ret = -EINVAL;
4571 }
4572
4573 return ret;
4574 }
4575
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)4576 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
4577 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
4578 struct ieee80211_key_conf *key)
4579 {
4580 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4581 int ret;
4582
4583 mutex_lock(&mvm->mutex);
4584 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key);
4585 mutex_unlock(&mvm->mutex);
4586
4587 return ret;
4588 }
4589
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)4590 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
4591 struct ieee80211_vif *vif,
4592 struct ieee80211_key_conf *keyconf,
4593 struct ieee80211_sta *sta,
4594 u32 iv32, u16 *phase1key)
4595 {
4596 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4597
4598 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
4599 return;
4600
4601 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
4602 }
4603
4604
iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data * notif_wait,struct iwl_rx_packet * pkt,void * data)4605 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
4606 struct iwl_rx_packet *pkt, void *data)
4607 {
4608 struct iwl_mvm *mvm =
4609 container_of(notif_wait, struct iwl_mvm, notif_wait);
4610 struct iwl_hs20_roc_res *resp;
4611 int resp_len = iwl_rx_packet_payload_len(pkt);
4612 struct iwl_mvm_time_event_data *te_data = data;
4613
4614 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
4615 return true;
4616
4617 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
4618 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
4619 return true;
4620 }
4621
4622 resp = (void *)pkt->data;
4623
4624 IWL_DEBUG_TE(mvm,
4625 "Aux ROC: Received response from ucode: status=%d uid=%d\n",
4626 resp->status, resp->event_unique_id);
4627
4628 te_data->uid = le32_to_cpu(resp->event_unique_id);
4629 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
4630 te_data->uid);
4631
4632 spin_lock_bh(&mvm->time_event_lock);
4633 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
4634 spin_unlock_bh(&mvm->time_event_lock);
4635
4636 return true;
4637 }
4638
iwl_mvm_send_aux_roc_cmd(struct iwl_mvm * mvm,struct ieee80211_channel * channel,struct ieee80211_vif * vif,int duration)4639 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
4640 struct ieee80211_channel *channel,
4641 struct ieee80211_vif *vif,
4642 int duration)
4643 {
4644 int res;
4645 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4646 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
4647 static const u16 time_event_response[] = { HOT_SPOT_CMD };
4648 struct iwl_notification_wait wait_time_event;
4649 u32 req_dur, delay;
4650 struct iwl_hs20_roc_req aux_roc_req = {
4651 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
4652 .id_and_color =
4653 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
4654 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
4655 };
4656 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm,
4657 &aux_roc_req.channel_info);
4658 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm);
4659
4660 /* Set the channel info data */
4661 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value,
4662 iwl_mvm_phy_band_from_nl80211(channel->band),
4663 IWL_PHY_CHANNEL_MODE20,
4664 0);
4665
4666 /* Set the time and duration */
4667 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm));
4668
4669 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay);
4670 tail->duration = cpu_to_le32(req_dur);
4671 tail->apply_time_max_delay = cpu_to_le32(delay);
4672
4673 IWL_DEBUG_TE(mvm,
4674 "ROC: Requesting to remain on channel %u for %ums\n",
4675 channel->hw_value, req_dur);
4676 IWL_DEBUG_TE(mvm,
4677 "\t(requested = %ums, max_delay = %ums)\n",
4678 duration, delay);
4679
4680 /* Set the node address */
4681 memcpy(tail->node_addr, vif->addr, ETH_ALEN);
4682
4683 lockdep_assert_held(&mvm->mutex);
4684
4685 spin_lock_bh(&mvm->time_event_lock);
4686
4687 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
4688 spin_unlock_bh(&mvm->time_event_lock);
4689 return -EIO;
4690 }
4691
4692 te_data->vif = vif;
4693 te_data->duration = duration;
4694 te_data->id = HOT_SPOT_CMD;
4695
4696 spin_unlock_bh(&mvm->time_event_lock);
4697
4698 /*
4699 * Use a notification wait, which really just processes the
4700 * command response and doesn't wait for anything, in order
4701 * to be able to process the response and get the UID inside
4702 * the RX path. Using CMD_WANT_SKB doesn't work because it
4703 * stores the buffer and then wakes up this thread, by which
4704 * time another notification (that the time event started)
4705 * might already be processed unsuccessfully.
4706 */
4707 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
4708 time_event_response,
4709 ARRAY_SIZE(time_event_response),
4710 iwl_mvm_rx_aux_roc, te_data);
4711
4712 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len,
4713 &aux_roc_req);
4714
4715 if (res) {
4716 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
4717 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
4718 goto out_clear_te;
4719 }
4720
4721 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
4722 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
4723 /* should never fail */
4724 WARN_ON_ONCE(res);
4725
4726 if (res) {
4727 out_clear_te:
4728 spin_lock_bh(&mvm->time_event_lock);
4729 iwl_mvm_te_clear_data(mvm, te_data);
4730 spin_unlock_bh(&mvm->time_event_lock);
4731 }
4732
4733 return res;
4734 }
4735
iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm * mvm,u32 lmac_id)4736 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id)
4737 {
4738 int ret = 0;
4739
4740 lockdep_assert_held(&mvm->mutex);
4741
4742 if (!fw_has_capa(&mvm->fw->ucode_capa,
4743 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
4744 IWL_ERR(mvm, "hotspot not supported\n");
4745 return -EINVAL;
4746 }
4747
4748 if (iwl_mvm_has_new_station_api(mvm->fw)) {
4749 ret = iwl_mvm_add_aux_sta(mvm, lmac_id);
4750 WARN(ret, "Failed to allocate aux station");
4751 }
4752
4753 return ret;
4754 }
4755
iwl_mvm_roc_link(struct iwl_mvm * mvm,struct ieee80211_vif * vif)4756 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
4757 {
4758 int ret;
4759
4760 lockdep_assert_held(&mvm->mutex);
4761
4762 ret = iwl_mvm_binding_add_vif(mvm, vif);
4763 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
4764 return ret;
4765
4766 /* The station and queue allocation must be done only after the binding
4767 * is done, as otherwise the FW might incorrectly configure its state.
4768 */
4769 return iwl_mvm_add_p2p_bcast_sta(mvm, vif);
4770 }
4771
iwl_mvm_roc(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * channel,int duration,enum ieee80211_roc_type type)4772 static int iwl_mvm_roc(struct ieee80211_hw *hw,
4773 struct ieee80211_vif *vif,
4774 struct ieee80211_channel *channel,
4775 int duration,
4776 enum ieee80211_roc_type type)
4777 {
4778 static const struct iwl_mvm_roc_ops ops = {
4779 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20,
4780 .link = iwl_mvm_roc_link,
4781 };
4782
4783 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops);
4784 }
4785
iwl_mvm_roc_station(struct iwl_mvm * mvm,struct ieee80211_channel * channel,struct ieee80211_vif * vif,int duration)4786 static int iwl_mvm_roc_station(struct iwl_mvm *mvm,
4787 struct ieee80211_channel *channel,
4788 struct ieee80211_vif *vif,
4789 int duration)
4790 {
4791 int ret;
4792 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD);
4793 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
4794 IWL_FW_CMD_VER_UNKNOWN);
4795
4796 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) {
4797 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration);
4798 } else if (fw_ver == 3) {
4799 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration,
4800 ROC_ACTIVITY_HOTSPOT);
4801 } else {
4802 ret = -EOPNOTSUPP;
4803 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver);
4804 }
4805
4806 return ret;
4807 }
4808
iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel * channel)4809 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm,
4810 struct ieee80211_vif *vif,
4811 struct ieee80211_channel *channel)
4812 {
4813 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4814 struct cfg80211_chan_def chandef;
4815 int i;
4816
4817 lockdep_assert_held(&mvm->mutex);
4818
4819 if (mvmvif->deflink.phy_ctxt &&
4820 channel == mvmvif->deflink.phy_ctxt->channel)
4821 return 0;
4822
4823 /* Try using a PHY context that is already in use */
4824 for (i = 0; i < NUM_PHY_CTX; i++) {
4825 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i];
4826
4827 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt)
4828 continue;
4829
4830 if (channel == phy_ctxt->channel) {
4831 if (mvmvif->deflink.phy_ctxt)
4832 iwl_mvm_phy_ctxt_unref(mvm,
4833 mvmvif->deflink.phy_ctxt);
4834
4835 mvmvif->deflink.phy_ctxt = phy_ctxt;
4836 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt);
4837 return 0;
4838 }
4839 }
4840
4841 /* We already have a phy_ctxt, but it's not on the right channel */
4842 if (mvmvif->deflink.phy_ctxt)
4843 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);
4844
4845 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
4846 if (!mvmvif->deflink.phy_ctxt)
4847 return -ENOSPC;
4848
4849 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
4850
4851 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt,
4852 &chandef, NULL, 1, 1);
4853 }
4854
4855 /* 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)4856 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4857 struct ieee80211_channel *channel, int duration,
4858 enum ieee80211_roc_type type,
4859 const struct iwl_mvm_roc_ops *ops)
4860 {
4861 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4862 u32 lmac_id;
4863 int ret;
4864
4865 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
4866 duration, type);
4867
4868 /*
4869 * Flush the done work, just in case it's still pending, so that
4870 * the work it does can complete and we can accept new frames.
4871 */
4872 flush_work(&mvm->roc_done_wk);
4873
4874 ret = iwl_mvm_esr_non_bss_link(mvm, vif, 0, true);
4875 if (ret)
4876 return ret;
4877
4878 mutex_lock(&mvm->mutex);
4879
4880 switch (vif->type) {
4881 case NL80211_IFTYPE_STATION:
4882 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band);
4883
4884 /* Use aux roc framework (HS20) */
4885 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id);
4886 if (!ret)
4887 ret = iwl_mvm_roc_station(mvm, channel, vif, duration);
4888 goto out_unlock;
4889 case NL80211_IFTYPE_P2P_DEVICE:
4890 /* handle below */
4891 break;
4892 default:
4893 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type);
4894 ret = -EINVAL;
4895 goto out_unlock;
4896 }
4897
4898
4899 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel);
4900 if (ret)
4901 goto out_unlock;
4902
4903 ret = ops->link(mvm, vif);
4904 if (ret)
4905 goto out_unlock;
4906
4907 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
4908 out_unlock:
4909 mutex_unlock(&mvm->mutex);
4910 IWL_DEBUG_MAC80211(mvm, "leave\n");
4911 return ret;
4912 }
4913
iwl_mvm_cancel_roc(struct ieee80211_hw * hw,struct ieee80211_vif * vif)4914 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw,
4915 struct ieee80211_vif *vif)
4916 {
4917 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4918
4919 IWL_DEBUG_MAC80211(mvm, "enter\n");
4920
4921 iwl_mvm_stop_roc(mvm, vif);
4922
4923 IWL_DEBUG_MAC80211(mvm, "leave\n");
4924 return 0;
4925 }
4926
4927 struct iwl_mvm_ftm_responder_iter_data {
4928 bool responder;
4929 struct ieee80211_chanctx_conf *ctx;
4930 };
4931
iwl_mvm_ftm_responder_chanctx_iter(void * _data,u8 * mac,struct ieee80211_vif * vif)4932 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac,
4933 struct ieee80211_vif *vif)
4934 {
4935 struct iwl_mvm_ftm_responder_iter_data *data = _data;
4936
4937 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx &&
4938 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params)
4939 data->responder = true;
4940 }
4941
iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm * mvm,struct ieee80211_chanctx_conf * ctx)4942 bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm,
4943 struct ieee80211_chanctx_conf *ctx)
4944 {
4945 struct iwl_mvm_ftm_responder_iter_data data = {
4946 .responder = false,
4947 .ctx = ctx,
4948 };
4949
4950 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
4951 IEEE80211_IFACE_ITER_NORMAL,
4952 iwl_mvm_ftm_responder_chanctx_iter,
4953 &data);
4954 return data.responder;
4955 }
4956
__iwl_mvm_add_chanctx(struct iwl_mvm * mvm,struct ieee80211_chanctx_conf * ctx)4957 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
4958 struct ieee80211_chanctx_conf *ctx)
4959 {
4960 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4961 struct iwl_mvm_phy_ctxt *phy_ctxt;
4962 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx);
4963 int ret;
4964
4965 lockdep_assert_held(&mvm->mutex);
4966
4967 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
4968
4969 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
4970 if (!phy_ctxt) {
4971 ret = -ENOSPC;
4972 goto out;
4973 }
4974
4975 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap,
4976 ctx->rx_chains_static,
4977 ctx->rx_chains_dynamic);
4978 if (ret) {
4979 IWL_ERR(mvm, "Failed to add PHY context\n");
4980 goto out;
4981 }
4982
4983 *phy_ctxt_id = phy_ctxt->id;
4984 out:
4985 return ret;
4986 }
4987
iwl_mvm_add_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)4988 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
4989 struct ieee80211_chanctx_conf *ctx)
4990 {
4991 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4992 int ret;
4993
4994 mutex_lock(&mvm->mutex);
4995 ret = __iwl_mvm_add_chanctx(mvm, ctx);
4996 mutex_unlock(&mvm->mutex);
4997
4998 return ret;
4999 }
5000
__iwl_mvm_remove_chanctx(struct iwl_mvm * mvm,struct ieee80211_chanctx_conf * ctx)5001 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
5002 struct ieee80211_chanctx_conf *ctx)
5003 {
5004 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
5005 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
5006
5007 lockdep_assert_held(&mvm->mutex);
5008
5009 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
5010 }
5011
iwl_mvm_remove_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)5012 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
5013 struct ieee80211_chanctx_conf *ctx)
5014 {
5015 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5016
5017 mutex_lock(&mvm->mutex);
5018 __iwl_mvm_remove_chanctx(mvm, ctx);
5019 mutex_unlock(&mvm->mutex);
5020 }
5021
iwl_mvm_change_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx,u32 changed)5022 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
5023 struct ieee80211_chanctx_conf *ctx, u32 changed)
5024 {
5025 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5026 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
5027 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
5028 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx);
5029
5030 if (WARN_ONCE((phy_ctxt->ref > 1) &&
5031 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
5032 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
5033 IEEE80211_CHANCTX_CHANGE_RADAR |
5034 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
5035 "Cannot change PHY. Ref=%d, changed=0x%X\n",
5036 phy_ctxt->ref, changed))
5037 return;
5038
5039 mutex_lock(&mvm->mutex);
5040
5041 /* we are only changing the min_width, may be a noop */
5042 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) {
5043 if (phy_ctxt->width == def->width)
5044 goto out_unlock;
5045
5046 /* we are just toggling between 20_NOHT and 20 */
5047 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&
5048 def->width <= NL80211_CHAN_WIDTH_20)
5049 goto out_unlock;
5050 }
5051
5052 iwl_mvm_bt_coex_vif_change(mvm);
5053 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap,
5054 ctx->rx_chains_static,
5055 ctx->rx_chains_dynamic);
5056
5057 out_unlock:
5058 mutex_unlock(&mvm->mutex);
5059 }
5060
5061 /*
5062 * This function executes the common part for MLD and non-MLD modes.
5063 *
5064 * Returns true if we're done assigning the chanctx
5065 * (either on failure or success)
5066 */
5067 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)5068 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm,
5069 struct ieee80211_vif *vif,
5070 struct ieee80211_chanctx_conf *ctx,
5071 bool switching_chanctx, int *ret)
5072 {
5073 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
5074 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
5075 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5076
5077 lockdep_assert_held(&mvm->mutex);
5078
5079 mvmvif->deflink.phy_ctxt = phy_ctxt;
5080
5081 switch (vif->type) {
5082 case NL80211_IFTYPE_AP:
5083 /* only needed if we're switching chanctx (i.e. during CSA) */
5084 if (switching_chanctx) {
5085 mvmvif->ap_ibss_active = true;
5086 break;
5087 }
5088 fallthrough;
5089 case NL80211_IFTYPE_ADHOC:
5090 /*
5091 * The AP binding flow is handled as part of the start_ap flow
5092 * (in bss_info_changed), similarly for IBSS.
5093 */
5094 *ret = 0;
5095 return true;
5096 case NL80211_IFTYPE_STATION:
5097 break;
5098 case NL80211_IFTYPE_MONITOR:
5099 /* always disable PS when a monitor interface is active */
5100 mvmvif->ps_disabled = true;
5101 break;
5102 default:
5103 *ret = -EINVAL;
5104 return true;
5105 }
5106 return false;
5107 }
5108
__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)5109 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
5110 struct ieee80211_vif *vif,
5111 struct ieee80211_bss_conf *link_conf,
5112 struct ieee80211_chanctx_conf *ctx,
5113 bool switching_chanctx)
5114 {
5115 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5116 int ret;
5117
5118 if (WARN_ON(!link_conf))
5119 return -EINVAL;
5120
5121 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx,
5122 switching_chanctx, &ret))
5123 goto out;
5124
5125 ret = iwl_mvm_binding_add_vif(mvm, vif);
5126 if (ret)
5127 goto out;
5128
5129 /*
5130 * Power state must be updated before quotas,
5131 * otherwise fw will complain.
5132 */
5133 iwl_mvm_power_update_mac(mvm);
5134
5135 /* Setting the quota at this stage is only required for monitor
5136 * interfaces. For the other types, the bss_info changed flow
5137 * will handle quota settings.
5138 */
5139 if (vif->type == NL80211_IFTYPE_MONITOR) {
5140 mvmvif->monitor_active = true;
5141 ret = iwl_mvm_update_quotas(mvm, false, NULL);
5142 if (ret)
5143 goto out_remove_binding;
5144
5145 ret = iwl_mvm_add_snif_sta(mvm, vif);
5146 if (ret)
5147 goto out_remove_binding;
5148
5149 }
5150
5151 /* Handle binding during CSA */
5152 if (vif->type == NL80211_IFTYPE_AP) {
5153 iwl_mvm_update_quotas(mvm, false, NULL);
5154 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
5155 }
5156
5157 if (vif->type == NL80211_IFTYPE_STATION) {
5158 if (!switching_chanctx) {
5159 mvmvif->csa_bcn_pending = false;
5160 goto out;
5161 }
5162
5163 mvmvif->csa_bcn_pending = true;
5164
5165 if (!fw_has_capa(&mvm->fw->ucode_capa,
5166 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
5167 u32 duration = 5 * vif->bss_conf.beacon_int;
5168
5169 /* Protect the session to make sure we hear the first
5170 * beacon on the new channel.
5171 */
5172 iwl_mvm_protect_session(mvm, vif, duration, duration,
5173 vif->bss_conf.beacon_int / 2,
5174 true);
5175 }
5176
5177 iwl_mvm_update_quotas(mvm, false, NULL);
5178 }
5179
5180 goto out;
5181
5182 out_remove_binding:
5183 iwl_mvm_binding_remove_vif(mvm, vif);
5184 iwl_mvm_power_update_mac(mvm);
5185 out:
5186 if (ret)
5187 mvmvif->deflink.phy_ctxt = NULL;
5188 return ret;
5189 }
5190
iwl_mvm_assign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)5191 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
5192 struct ieee80211_vif *vif,
5193 struct ieee80211_bss_conf *link_conf,
5194 struct ieee80211_chanctx_conf *ctx)
5195 {
5196 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5197 int ret;
5198
5199 mutex_lock(&mvm->mutex);
5200 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false);
5201 mutex_unlock(&mvm->mutex);
5202
5203 return ret;
5204 }
5205
5206 /*
5207 * This function executes the common part for MLD and non-MLD modes.
5208 *
5209 * Returns if chanctx unassign chanctx is done
5210 * (either on failure or success)
5211 */
__iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool switching_chanctx)5212 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm,
5213 struct ieee80211_vif *vif,
5214 bool switching_chanctx)
5215 {
5216 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5217
5218 lockdep_assert_held(&mvm->mutex);
5219 iwl_mvm_remove_time_event(mvm, mvmvif,
5220 &mvmvif->time_event_data);
5221
5222 switch (vif->type) {
5223 case NL80211_IFTYPE_ADHOC:
5224 return true;
5225 case NL80211_IFTYPE_MONITOR:
5226 mvmvif->monitor_active = false;
5227 mvmvif->ps_disabled = false;
5228 break;
5229 case NL80211_IFTYPE_AP:
5230 /* This part is triggered only during CSA */
5231 if (!switching_chanctx || !mvmvif->ap_ibss_active)
5232 return true;
5233
5234 mvmvif->csa_countdown = false;
5235
5236 /* Set CS bit on all the stations */
5237 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
5238
5239 /* Save blocked iface, the timeout is set on the next beacon */
5240 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
5241
5242 mvmvif->ap_ibss_active = false;
5243 break;
5244 default:
5245 break;
5246 }
5247 return false;
5248 }
5249
__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)5250 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
5251 struct ieee80211_vif *vif,
5252 struct ieee80211_bss_conf *link_conf,
5253 struct ieee80211_chanctx_conf *ctx,
5254 bool switching_chanctx)
5255 {
5256 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5257 struct ieee80211_vif *disabled_vif = NULL;
5258
5259 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx))
5260 goto out;
5261
5262 if (vif->type == NL80211_IFTYPE_MONITOR)
5263 iwl_mvm_rm_snif_sta(mvm, vif);
5264
5265
5266 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) {
5267 disabled_vif = vif;
5268 if (!fw_has_capa(&mvm->fw->ucode_capa,
5269 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
5270 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
5271 }
5272
5273 iwl_mvm_update_quotas(mvm, false, disabled_vif);
5274 iwl_mvm_binding_remove_vif(mvm, vif);
5275
5276 out:
5277 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) &&
5278 switching_chanctx)
5279 return;
5280 mvmvif->deflink.phy_ctxt = NULL;
5281 iwl_mvm_power_update_mac(mvm);
5282 }
5283
iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)5284 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
5285 struct ieee80211_vif *vif,
5286 struct ieee80211_bss_conf *link_conf,
5287 struct ieee80211_chanctx_conf *ctx)
5288 {
5289 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5290
5291 mutex_lock(&mvm->mutex);
5292 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false);
5293 mutex_unlock(&mvm->mutex);
5294 }
5295
5296 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)5297 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
5298 struct ieee80211_vif_chanctx_switch *vifs,
5299 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5300 {
5301 int ret;
5302
5303 mutex_lock(&mvm->mutex);
5304 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5305 vifs[0].old_ctx, true);
5306 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
5307
5308 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
5309 if (ret) {
5310 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
5311 goto out_reassign;
5312 }
5313
5314 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5315 vifs[0].new_ctx, true);
5316 if (ret) {
5317 IWL_ERR(mvm,
5318 "failed to assign new_ctx during channel switch\n");
5319 goto out_remove;
5320 }
5321
5322 /* we don't support TDLS during DCM - can be caused by channel switch */
5323 if (iwl_mvm_phy_ctx_count(mvm) > 1)
5324 iwl_mvm_teardown_tdls_peers(mvm);
5325
5326 goto out;
5327
5328 out_remove:
5329 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
5330
5331 out_reassign:
5332 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
5333 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
5334 goto out_restart;
5335 }
5336
5337 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5338 vifs[0].old_ctx, true)) {
5339 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
5340 goto out_restart;
5341 }
5342
5343 goto out;
5344
5345 out_restart:
5346 /* things keep failing, better restart the hw */
5347 iwl_mvm_nic_restart(mvm, false);
5348
5349 out:
5350 mutex_unlock(&mvm->mutex);
5351
5352 return ret;
5353 }
5354
5355 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)5356 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
5357 struct ieee80211_vif_chanctx_switch *vifs,
5358 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5359 {
5360 int ret;
5361
5362 mutex_lock(&mvm->mutex);
5363 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5364 vifs[0].old_ctx, true);
5365
5366 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5367 vifs[0].new_ctx, true);
5368 if (ret) {
5369 IWL_ERR(mvm,
5370 "failed to assign new_ctx during channel switch\n");
5371 goto out_reassign;
5372 }
5373
5374 goto out;
5375
5376 out_reassign:
5377 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5378 vifs[0].old_ctx, true)) {
5379 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
5380 goto out_restart;
5381 }
5382
5383 goto out;
5384
5385 out_restart:
5386 /* things keep failing, better restart the hw */
5387 iwl_mvm_nic_restart(mvm, false);
5388
5389 out:
5390 mutex_unlock(&mvm->mutex);
5391
5392 return ret;
5393 }
5394
5395 /* Execute the common part for both MLD and non-MLD modes */
5396 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)5397 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw,
5398 struct ieee80211_vif_chanctx_switch *vifs,
5399 int n_vifs,
5400 enum ieee80211_chanctx_switch_mode mode,
5401 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5402 {
5403 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5404 int ret;
5405
5406 /* we only support a single-vif right now */
5407 if (n_vifs > 1)
5408 return -EOPNOTSUPP;
5409
5410 switch (mode) {
5411 case CHANCTX_SWMODE_SWAP_CONTEXTS:
5412 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops);
5413 break;
5414 case CHANCTX_SWMODE_REASSIGN_VIF:
5415 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops);
5416 break;
5417 default:
5418 ret = -EOPNOTSUPP;
5419 break;
5420 }
5421
5422 return ret;
5423 }
5424
iwl_mvm_switch_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif_chanctx_switch * vifs,int n_vifs,enum ieee80211_chanctx_switch_mode mode)5425 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
5426 struct ieee80211_vif_chanctx_switch *vifs,
5427 int n_vifs,
5428 enum ieee80211_chanctx_switch_mode mode)
5429 {
5430 static const struct iwl_mvm_switch_vif_chanctx_ops ops = {
5431 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx,
5432 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx,
5433 };
5434
5435 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops);
5436 }
5437
iwl_mvm_tx_last_beacon(struct ieee80211_hw * hw)5438 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
5439 {
5440 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5441
5442 return mvm->ibss_manager;
5443 }
5444
iwl_mvm_set_tim(struct ieee80211_hw * hw,struct ieee80211_sta * sta,bool set)5445 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
5446 bool set)
5447 {
5448 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5449 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
5450
5451 if (!mvm_sta || !mvm_sta->vif) {
5452 IWL_ERR(mvm, "Station is not associated to a vif\n");
5453 return -EINVAL;
5454 }
5455
5456 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif,
5457 &mvm_sta->vif->bss_conf);
5458 }
5459
5460 #ifdef CONFIG_NL80211_TESTMODE
5461 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
5462 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
5463 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
5464 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
5465 };
5466
__iwl_mvm_mac_testmode_cmd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,void * data,int len)5467 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
5468 struct ieee80211_vif *vif,
5469 void *data, int len)
5470 {
5471 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
5472 int err;
5473 u32 noa_duration;
5474
5475 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len,
5476 iwl_mvm_tm_policy, NULL);
5477 if (err)
5478 return err;
5479
5480 if (!tb[IWL_MVM_TM_ATTR_CMD])
5481 return -EINVAL;
5482
5483 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
5484 case IWL_MVM_TM_CMD_SET_NOA:
5485 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
5486 !vif->bss_conf.enable_beacon ||
5487 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
5488 return -EINVAL;
5489
5490 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
5491 if (noa_duration >= vif->bss_conf.beacon_int)
5492 return -EINVAL;
5493
5494 mvm->noa_duration = noa_duration;
5495 mvm->noa_vif = vif;
5496
5497 return iwl_mvm_update_quotas(mvm, true, NULL);
5498 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
5499 /* must be associated client vif - ignore authorized */
5500 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
5501 !vif->cfg.assoc || !vif->bss_conf.dtim_period ||
5502 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
5503 return -EINVAL;
5504
5505 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
5506 return iwl_mvm_enable_beacon_filter(mvm, vif);
5507 return iwl_mvm_disable_beacon_filter(mvm, vif);
5508 }
5509
5510 return -EOPNOTSUPP;
5511 }
5512
iwl_mvm_mac_testmode_cmd(struct ieee80211_hw * hw,struct ieee80211_vif * vif,void * data,int len)5513 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
5514 struct ieee80211_vif *vif,
5515 void *data, int len)
5516 {
5517 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5518 int err;
5519
5520 mutex_lock(&mvm->mutex);
5521 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
5522 mutex_unlock(&mvm->mutex);
5523
5524 return err;
5525 }
5526 #endif
5527
iwl_mvm_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5528 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5529 struct ieee80211_channel_switch *chsw)
5530 {
5531 /* By implementing this operation, we prevent mac80211 from
5532 * starting its own channel switch timer, so that we can call
5533 * ieee80211_chswitch_done() ourselves at the right time
5534 * (which is when the absence time event starts).
5535 */
5536
5537 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
5538 "dummy channel switch op\n");
5539 }
5540
iwl_mvm_schedule_client_csa(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5541 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm,
5542 struct ieee80211_vif *vif,
5543 struct ieee80211_channel_switch *chsw)
5544 {
5545 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5546 struct iwl_chan_switch_te_cmd cmd = {
5547 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
5548 mvmvif->color)),
5549 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
5550 .tsf = cpu_to_le32(chsw->timestamp),
5551 .cs_count = chsw->count,
5552 .cs_mode = chsw->block_tx,
5553 };
5554
5555 lockdep_assert_held(&mvm->mutex);
5556
5557 if (chsw->delay)
5558 cmd.cs_delayed_bcn_count =
5559 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int);
5560
5561 return iwl_mvm_send_cmd_pdu(mvm,
5562 WIDE_ID(MAC_CONF_GROUP,
5563 CHANNEL_SWITCH_TIME_EVENT_CMD),
5564 0, sizeof(cmd), &cmd);
5565 }
5566
iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5567 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm,
5568 struct ieee80211_vif *vif,
5569 struct ieee80211_channel_switch *chsw)
5570 {
5571 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5572 u32 apply_time;
5573
5574 /* Schedule the time event to a bit before beacon 1,
5575 * to make sure we're in the new channel when the
5576 * GO/AP arrives. In case count <= 1 immediately schedule the
5577 * TE (this might result with some packet loss or connection
5578 * loss).
5579 */
5580 if (chsw->count <= 1)
5581 apply_time = 0;
5582 else
5583 apply_time = chsw->device_timestamp +
5584 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
5585 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
5586
5587 if (chsw->block_tx)
5588 iwl_mvm_csa_client_absent(mvm, vif);
5589
5590 if (mvmvif->bf_enabled) {
5591 int ret = iwl_mvm_disable_beacon_filter(mvm, vif);
5592
5593 if (ret)
5594 return ret;
5595 }
5596
5597 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
5598 apply_time);
5599
5600 return 0;
5601 }
5602
iwl_mvm_csa_block_txqs(void * data,struct ieee80211_sta * sta)5603 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta)
5604 {
5605 int i;
5606
5607 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {
5608 struct iwl_mvm_txq *mvmtxq =
5609 iwl_mvm_txq_from_mac80211(sta->txq[i]);
5610
5611 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);
5612 }
5613 }
5614
5615 #define IWL_MAX_CSA_BLOCK_TX 1500
iwl_mvm_pre_channel_switch(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5616 int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm,
5617 struct ieee80211_vif *vif,
5618 struct ieee80211_channel_switch *chsw)
5619 {
5620 struct ieee80211_vif *csa_vif;
5621 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5622 struct iwl_mvm_txq *mvmtxq;
5623 int ret;
5624
5625 lockdep_assert_held(&mvm->mutex);
5626
5627 mvmvif->csa_failed = false;
5628 mvmvif->csa_blocks_tx = false;
5629
5630 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
5631 chsw->chandef.center_freq1);
5632
5633 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
5634 ieee80211_vif_to_wdev(vif),
5635 FW_DBG_TRIGGER_CHANNEL_SWITCH);
5636
5637 switch (vif->type) {
5638 case NL80211_IFTYPE_AP:
5639 csa_vif =
5640 rcu_dereference_protected(mvm->csa_vif,
5641 lockdep_is_held(&mvm->mutex));
5642 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active,
5643 "Another CSA is already in progress"))
5644 return -EBUSY;
5645
5646 /* we still didn't unblock tx. prevent new CS meanwhile */
5647 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
5648 lockdep_is_held(&mvm->mutex)))
5649 return -EBUSY;
5650
5651 rcu_assign_pointer(mvm->csa_vif, vif);
5652
5653 if (WARN_ONCE(mvmvif->csa_countdown,
5654 "Previous CSA countdown didn't complete"))
5655 return -EBUSY;
5656
5657 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
5658
5659 if (!chsw->block_tx)
5660 break;
5661 /* don't need blocking in driver otherwise - mac80211 will do */
5662 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA))
5663 break;
5664
5665 mvmvif->csa_blocks_tx = true;
5666 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq);
5667 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);
5668 ieee80211_iterate_stations_atomic(mvm->hw,
5669 iwl_mvm_csa_block_txqs,
5670 NULL);
5671 break;
5672 case NL80211_IFTYPE_STATION:
5673 mvmvif->csa_blocks_tx = chsw->block_tx;
5674
5675 /*
5676 * In the new flow FW is in charge of timing the switch so there
5677 * is no need for all of this
5678 */
5679 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
5680 CHANNEL_SWITCH_ERROR_NOTIF,
5681 0))
5682 break;
5683
5684 /*
5685 * We haven't configured the firmware to be associated yet since
5686 * we don't know the dtim period. In this case, the firmware can't
5687 * track the beacons.
5688 */
5689 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period)
5690 return -EBUSY;
5691
5692 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX &&
5693 hweight16(vif->valid_links) <= 1)
5694 schedule_delayed_work(&mvmvif->csa_work, 0);
5695
5696 if (chsw->block_tx) {
5697 /*
5698 * In case of undetermined / long time with immediate
5699 * quiet monitor status to gracefully disconnect
5700 */
5701 if (!chsw->count ||
5702 chsw->count * vif->bss_conf.beacon_int >
5703 IWL_MAX_CSA_BLOCK_TX)
5704 schedule_delayed_work(&mvmvif->csa_work,
5705 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX));
5706 }
5707
5708 if (!fw_has_capa(&mvm->fw->ucode_capa,
5709 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
5710 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw);
5711 if (ret)
5712 return ret;
5713 } else {
5714 iwl_mvm_schedule_client_csa(mvm, vif, chsw);
5715 }
5716
5717 mvmvif->csa_count = chsw->count;
5718 mvmvif->csa_misbehave = false;
5719 break;
5720 default:
5721 break;
5722 }
5723
5724 mvmvif->ps_disabled = true;
5725
5726 ret = iwl_mvm_power_update_ps(mvm);
5727 if (ret)
5728 return ret;
5729
5730 /* we won't be on this channel any longer */
5731 iwl_mvm_teardown_tdls_peers(mvm);
5732
5733 return ret;
5734 }
5735
iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5736 static int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw,
5737 struct ieee80211_vif *vif,
5738 struct ieee80211_channel_switch *chsw)
5739 {
5740 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5741 int ret;
5742
5743 mutex_lock(&mvm->mutex);
5744 ret = iwl_mvm_pre_channel_switch(mvm, vif, chsw);
5745 mutex_unlock(&mvm->mutex);
5746
5747 return ret;
5748 }
5749
iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5750 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw,
5751 struct ieee80211_vif *vif,
5752 struct ieee80211_channel_switch *chsw)
5753 {
5754 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5755 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5756 struct iwl_chan_switch_te_cmd cmd = {
5757 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
5758 mvmvif->color)),
5759 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY),
5760 .tsf = cpu_to_le32(chsw->timestamp),
5761 .cs_count = chsw->count,
5762 .cs_mode = chsw->block_tx,
5763 };
5764
5765 /*
5766 * In the new flow FW is in charge of timing the switch so there is no
5767 * need for all of this
5768 */
5769 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
5770 CHANNEL_SWITCH_ERROR_NOTIF, 0))
5771 return;
5772
5773 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY))
5774 return;
5775
5776 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n",
5777 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx);
5778
5779 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) {
5780 if (mvmvif->csa_misbehave) {
5781 struct ieee80211_bss_conf *link_conf;
5782
5783 /* Second time, give up on this AP*/
5784
5785 link_conf = wiphy_dereference(hw->wiphy,
5786 vif->link_conf[chsw->link_id]);
5787 if (WARN_ON(!link_conf))
5788 return;
5789
5790 iwl_mvm_abort_channel_switch(hw, vif, link_conf);
5791 ieee80211_chswitch_done(vif, false, 0);
5792 mvmvif->csa_misbehave = false;
5793 return;
5794 }
5795 mvmvif->csa_misbehave = true;
5796 }
5797 mvmvif->csa_count = chsw->count;
5798
5799 mutex_lock(&mvm->mutex);
5800 if (mvmvif->csa_failed)
5801 goto out_unlock;
5802
5803 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
5804 WIDE_ID(MAC_CONF_GROUP,
5805 CHANNEL_SWITCH_TIME_EVENT_CMD),
5806 0, sizeof(cmd), &cmd));
5807 out_unlock:
5808 mutex_unlock(&mvm->mutex);
5809 }
5810
iwl_mvm_flush_no_vif(struct iwl_mvm * mvm,u32 queues,bool drop)5811 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
5812 {
5813 int i;
5814
5815 if (!iwl_mvm_has_new_tx_api(mvm)) {
5816 if (drop) {
5817 mutex_lock(&mvm->mutex);
5818 iwl_mvm_flush_tx_path(mvm,
5819 iwl_mvm_flushable_queues(mvm) & queues);
5820 mutex_unlock(&mvm->mutex);
5821 } else {
5822 iwl_trans_wait_tx_queues_empty(mvm->trans, queues);
5823 }
5824 return;
5825 }
5826
5827 mutex_lock(&mvm->mutex);
5828 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
5829 struct ieee80211_sta *sta;
5830
5831 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
5832 lockdep_is_held(&mvm->mutex));
5833 if (IS_ERR_OR_NULL(sta))
5834 continue;
5835
5836 if (drop)
5837 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF);
5838 else
5839 iwl_mvm_wait_sta_queues_empty(mvm,
5840 iwl_mvm_sta_from_mac80211(sta));
5841 }
5842 mutex_unlock(&mvm->mutex);
5843 }
5844
iwl_mvm_mac_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)5845 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5846 u32 queues, bool drop)
5847 {
5848 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5849 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5850 struct iwl_mvm_sta *mvmsta;
5851 struct ieee80211_sta *sta;
5852 bool ap_sta_done = false;
5853 int i;
5854 u32 msk = 0;
5855
5856 if (!vif) {
5857 iwl_mvm_flush_no_vif(mvm, queues, drop);
5858 return;
5859 }
5860
5861 if (!drop && hweight16(vif->active_links) <= 1) {
5862 int link_id = vif->active_links ? __ffs(vif->active_links) : 0;
5863 struct ieee80211_bss_conf *link_conf;
5864
5865 link_conf = wiphy_dereference(hw->wiphy,
5866 vif->link_conf[link_id]);
5867 if (WARN_ON(!link_conf))
5868 return;
5869 if (link_conf->csa_active && mvmvif->csa_blocks_tx)
5870 drop = true;
5871 }
5872
5873 /* Make sure we're done with the deferred traffic before flushing */
5874 flush_work(&mvm->add_stream_wk);
5875
5876 mutex_lock(&mvm->mutex);
5877
5878 /* flush the AP-station and all TDLS peers */
5879 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
5880 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
5881 lockdep_is_held(&mvm->mutex));
5882 if (IS_ERR_OR_NULL(sta))
5883 continue;
5884
5885 mvmsta = iwl_mvm_sta_from_mac80211(sta);
5886 if (mvmsta->vif != vif)
5887 continue;
5888
5889 if (sta == mvmvif->ap_sta) {
5890 if (ap_sta_done)
5891 continue;
5892 ap_sta_done = true;
5893 }
5894
5895 if (drop) {
5896 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id,
5897 mvmsta->tfd_queue_msk))
5898 IWL_ERR(mvm, "flush request fail\n");
5899 } else {
5900 if (iwl_mvm_has_new_tx_api(mvm))
5901 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
5902 else /* only used for !iwl_mvm_has_new_tx_api() below */
5903 msk |= mvmsta->tfd_queue_msk;
5904 }
5905 }
5906
5907 mutex_unlock(&mvm->mutex);
5908
5909 /* this can take a while, and we may need/want other operations
5910 * to succeed while doing this, so do it without the mutex held
5911 */
5912 if (!drop && !iwl_mvm_has_new_tx_api(mvm))
5913 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
5914 }
5915
iwl_mvm_mac_flush_sta(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)5916 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5917 struct ieee80211_sta *sta)
5918 {
5919 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
5920 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5921 struct iwl_mvm_link_sta *mvm_link_sta;
5922 struct ieee80211_link_sta *link_sta;
5923 int link_id;
5924
5925 mutex_lock(&mvm->mutex);
5926 for_each_sta_active_link(vif, sta, link_sta, link_id) {
5927 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id],
5928 lockdep_is_held(&mvm->mutex));
5929 if (!mvm_link_sta)
5930 continue;
5931
5932 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id,
5933 mvmsta->tfd_queue_msk))
5934 IWL_ERR(mvm, "flush request fail\n");
5935 }
5936 mutex_unlock(&mvm->mutex);
5937 }
5938
iwl_mvm_mac_get_acs_survey(struct iwl_mvm * mvm,int idx,struct survey_info * survey)5939 static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx,
5940 struct survey_info *survey)
5941 {
5942 int chan_idx;
5943 enum nl80211_band band;
5944 int ret;
5945
5946 mutex_lock(&mvm->mutex);
5947
5948 if (!mvm->acs_survey) {
5949 ret = -ENOENT;
5950 goto out;
5951 }
5952
5953 /* Find and return the next entry that has a non-zero active time */
5954 for (band = 0; band < NUM_NL80211_BANDS; band++) {
5955 struct ieee80211_supported_band *sband =
5956 mvm->hw->wiphy->bands[band];
5957
5958 if (!sband)
5959 continue;
5960
5961 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) {
5962 struct iwl_mvm_acs_survey_channel *info =
5963 &mvm->acs_survey->bands[band][chan_idx];
5964
5965 if (!info->time)
5966 continue;
5967
5968 /* Found (the next) channel to report */
5969 survey->channel = &sband->channels[chan_idx];
5970 survey->filled = SURVEY_INFO_TIME |
5971 SURVEY_INFO_TIME_BUSY |
5972 SURVEY_INFO_TIME_RX |
5973 SURVEY_INFO_TIME_TX;
5974 survey->time = info->time;
5975 survey->time_busy = info->time_busy;
5976 survey->time_rx = info->time_rx;
5977 survey->time_tx = info->time_tx;
5978 survey->noise = info->noise;
5979 if (survey->noise < 0)
5980 survey->filled |= SURVEY_INFO_NOISE_DBM;
5981
5982 /* Clear time so that channel is only reported once */
5983 info->time = 0;
5984
5985 ret = 0;
5986 goto out;
5987 }
5988 }
5989
5990 ret = -ENOENT;
5991
5992 out:
5993 mutex_unlock(&mvm->mutex);
5994
5995 return ret;
5996 }
5997
iwl_mvm_mac_get_survey(struct ieee80211_hw * hw,int idx,struct survey_info * survey)5998 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
5999 struct survey_info *survey)
6000 {
6001 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6002 int ret = 0;
6003 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
6004 WIDE_ID(SYSTEM_GROUP,
6005 SYSTEM_STATISTICS_CMD),
6006 IWL_FW_CMD_VER_UNKNOWN);
6007
6008 memset(survey, 0, sizeof(*survey));
6009
6010 if (!fw_has_capa(&mvm->fw->ucode_capa,
6011 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
6012 return -ENOENT;
6013
6014 /*
6015 * Return the beacon stats at index zero and pass on following indices
6016 * to the function returning the full survey, most likely for ACS
6017 * (Automatic Channel Selection).
6018 */
6019 if (idx > 0)
6020 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey);
6021
6022 mutex_lock(&mvm->mutex);
6023
6024 if (iwl_mvm_firmware_running(mvm)) {
6025 ret = iwl_mvm_request_statistics(mvm, false);
6026 if (ret)
6027 goto out;
6028 }
6029
6030 survey->filled = SURVEY_INFO_TIME_RX |
6031 SURVEY_INFO_TIME_TX;
6032
6033 survey->time_rx = mvm->accu_radio_stats.rx_time +
6034 mvm->radio_stats.rx_time;
6035 do_div(survey->time_rx, USEC_PER_MSEC);
6036
6037 survey->time_tx = mvm->accu_radio_stats.tx_time +
6038 mvm->radio_stats.tx_time;
6039 do_div(survey->time_tx, USEC_PER_MSEC);
6040
6041 /* the new fw api doesn't support the following fields */
6042 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN)
6043 goto out;
6044
6045 survey->filled |= SURVEY_INFO_TIME |
6046 SURVEY_INFO_TIME_SCAN;
6047 survey->time = mvm->accu_radio_stats.on_time_rf +
6048 mvm->radio_stats.on_time_rf;
6049 do_div(survey->time, USEC_PER_MSEC);
6050
6051 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
6052 mvm->radio_stats.on_time_scan;
6053 do_div(survey->time_scan, USEC_PER_MSEC);
6054
6055 out:
6056 mutex_unlock(&mvm->mutex);
6057 return ret;
6058 }
6059
iwl_mvm_set_sta_rate(u32 rate_n_flags,struct rate_info * rinfo)6060 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo)
6061 {
6062 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
6063 u32 gi_ltf;
6064
6065 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
6066 case RATE_MCS_CHAN_WIDTH_20:
6067 rinfo->bw = RATE_INFO_BW_20;
6068 break;
6069 case RATE_MCS_CHAN_WIDTH_40:
6070 rinfo->bw = RATE_INFO_BW_40;
6071 break;
6072 case RATE_MCS_CHAN_WIDTH_80:
6073 rinfo->bw = RATE_INFO_BW_80;
6074 break;
6075 case RATE_MCS_CHAN_WIDTH_160:
6076 rinfo->bw = RATE_INFO_BW_160;
6077 break;
6078 case RATE_MCS_CHAN_WIDTH_320:
6079 rinfo->bw = RATE_INFO_BW_320;
6080 break;
6081 }
6082
6083 if (format == RATE_MCS_CCK_MSK ||
6084 format == RATE_MCS_LEGACY_OFDM_MSK) {
6085 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK);
6086
6087 /* add the offset needed to get to the legacy ofdm indices */
6088 if (format == RATE_MCS_LEGACY_OFDM_MSK)
6089 rate += IWL_FIRST_OFDM_RATE;
6090
6091 switch (rate) {
6092 case IWL_RATE_1M_INDEX:
6093 rinfo->legacy = 10;
6094 break;
6095 case IWL_RATE_2M_INDEX:
6096 rinfo->legacy = 20;
6097 break;
6098 case IWL_RATE_5M_INDEX:
6099 rinfo->legacy = 55;
6100 break;
6101 case IWL_RATE_11M_INDEX:
6102 rinfo->legacy = 110;
6103 break;
6104 case IWL_RATE_6M_INDEX:
6105 rinfo->legacy = 60;
6106 break;
6107 case IWL_RATE_9M_INDEX:
6108 rinfo->legacy = 90;
6109 break;
6110 case IWL_RATE_12M_INDEX:
6111 rinfo->legacy = 120;
6112 break;
6113 case IWL_RATE_18M_INDEX:
6114 rinfo->legacy = 180;
6115 break;
6116 case IWL_RATE_24M_INDEX:
6117 rinfo->legacy = 240;
6118 break;
6119 case IWL_RATE_36M_INDEX:
6120 rinfo->legacy = 360;
6121 break;
6122 case IWL_RATE_48M_INDEX:
6123 rinfo->legacy = 480;
6124 break;
6125 case IWL_RATE_54M_INDEX:
6126 rinfo->legacy = 540;
6127 }
6128 return;
6129 }
6130
6131 rinfo->nss = u32_get_bits(rate_n_flags,
6132 RATE_MCS_NSS_MSK) + 1;
6133 rinfo->mcs = format == RATE_MCS_HT_MSK ?
6134 RATE_HT_MCS_INDEX(rate_n_flags) :
6135 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK);
6136
6137 if (rate_n_flags & RATE_MCS_SGI_MSK)
6138 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6139
6140 switch (format) {
6141 case RATE_MCS_EHT_MSK:
6142 /* TODO: GI/LTF/RU. How does the firmware encode them? */
6143 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS;
6144 break;
6145 case RATE_MCS_HE_MSK:
6146 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK);
6147
6148 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS;
6149
6150 if (rate_n_flags & RATE_MCS_HE_106T_MSK) {
6151 rinfo->bw = RATE_INFO_BW_HE_RU;
6152 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106;
6153 }
6154
6155 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) {
6156 case RATE_MCS_HE_TYPE_SU:
6157 case RATE_MCS_HE_TYPE_EXT_SU:
6158 if (gi_ltf == 0 || gi_ltf == 1)
6159 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
6160 else if (gi_ltf == 2)
6161 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
6162 else if (gi_ltf == 3)
6163 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
6164 else
6165 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
6166 break;
6167 case RATE_MCS_HE_TYPE_MU:
6168 if (gi_ltf == 0 || gi_ltf == 1)
6169 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
6170 else if (gi_ltf == 2)
6171 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
6172 else
6173 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
6174 break;
6175 case RATE_MCS_HE_TYPE_TRIG:
6176 if (gi_ltf == 0 || gi_ltf == 1)
6177 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
6178 else
6179 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
6180 break;
6181 }
6182
6183 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK)
6184 rinfo->he_dcm = 1;
6185 break;
6186 case RATE_MCS_HT_MSK:
6187 rinfo->flags |= RATE_INFO_FLAGS_MCS;
6188 break;
6189 case RATE_MCS_VHT_MSK:
6190 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
6191 break;
6192 }
6193 }
6194
iwl_mvm_mac_sta_statistics(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct station_info * sinfo)6195 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
6196 struct ieee80211_vif *vif,
6197 struct ieee80211_sta *sta,
6198 struct station_info *sinfo)
6199 {
6200 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6201 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6202 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
6203 int i;
6204
6205 if (mvmsta->deflink.avg_energy) {
6206 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy;
6207 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
6208 }
6209
6210 if (iwl_mvm_has_tlc_offload(mvm)) {
6211 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw;
6212
6213 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate);
6214 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
6215 }
6216
6217 /* if beacon filtering isn't on mac80211 does it anyway */
6218 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
6219 return;
6220
6221 if (!vif->cfg.assoc)
6222 return;
6223
6224 mutex_lock(&mvm->mutex);
6225
6226 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id)
6227 goto unlock;
6228
6229 if (iwl_mvm_request_statistics(mvm, false))
6230 goto unlock;
6231
6232 sinfo->rx_beacon = 0;
6233 for_each_mvm_vif_valid_link(mvmvif, i)
6234 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons +
6235 mvmvif->link[i]->beacon_stats.accu_num_beacons;
6236
6237 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX);
6238 if (mvmvif->deflink.beacon_stats.avg_signal) {
6239 /* firmware only reports a value after RXing a few beacons */
6240 sinfo->rx_beacon_signal_avg =
6241 mvmvif->deflink.beacon_stats.avg_signal;
6242 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
6243 }
6244 unlock:
6245 mutex_unlock(&mvm->mutex);
6246 }
6247
iwl_mvm_event_mlme_callback_ini(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const struct ieee80211_mlme_event * mlme)6248 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm,
6249 struct ieee80211_vif *vif,
6250 const struct ieee80211_mlme_event *mlme)
6251 {
6252 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) &&
6253 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) {
6254 iwl_dbg_tlv_time_point(&mvm->fwrt,
6255 IWL_FW_INI_TIME_POINT_ASSOC_FAILED,
6256 NULL);
6257 return;
6258 }
6259
6260 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) {
6261 iwl_dbg_tlv_time_point(&mvm->fwrt,
6262 IWL_FW_INI_TIME_POINT_DEASSOC,
6263 NULL);
6264 return;
6265 }
6266 }
6267
iwl_mvm_event_mlme_callback(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const struct ieee80211_event * event)6268 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
6269 struct ieee80211_vif *vif,
6270 const struct ieee80211_event *event)
6271 {
6272 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
6273 do { \
6274 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
6275 break; \
6276 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
6277 } while (0)
6278
6279 struct iwl_fw_dbg_trigger_tlv *trig;
6280 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
6281
6282 if (iwl_trans_dbg_ini_valid(mvm->trans)) {
6283 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme);
6284 return;
6285 }
6286
6287 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
6288 FW_DBG_TRIGGER_MLME);
6289 if (!trig)
6290 return;
6291
6292 trig_mlme = (void *)trig->data;
6293
6294 if (event->u.mlme.data == ASSOC_EVENT) {
6295 if (event->u.mlme.status == MLME_DENIED)
6296 CHECK_MLME_TRIGGER(stop_assoc_denied,
6297 "DENIED ASSOC: reason %d",
6298 event->u.mlme.reason);
6299 else if (event->u.mlme.status == MLME_TIMEOUT)
6300 CHECK_MLME_TRIGGER(stop_assoc_timeout,
6301 "ASSOC TIMEOUT");
6302 } else if (event->u.mlme.data == AUTH_EVENT) {
6303 if (event->u.mlme.status == MLME_DENIED)
6304 CHECK_MLME_TRIGGER(stop_auth_denied,
6305 "DENIED AUTH: reason %d",
6306 event->u.mlme.reason);
6307 else if (event->u.mlme.status == MLME_TIMEOUT)
6308 CHECK_MLME_TRIGGER(stop_auth_timeout,
6309 "AUTH TIMEOUT");
6310 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
6311 CHECK_MLME_TRIGGER(stop_rx_deauth,
6312 "DEAUTH RX %d", event->u.mlme.reason);
6313 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
6314 CHECK_MLME_TRIGGER(stop_tx_deauth,
6315 "DEAUTH TX %d", event->u.mlme.reason);
6316 }
6317 #undef CHECK_MLME_TRIGGER
6318 }
6319
iwl_mvm_event_bar_rx_callback(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const struct ieee80211_event * event)6320 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
6321 struct ieee80211_vif *vif,
6322 const struct ieee80211_event *event)
6323 {
6324 struct iwl_fw_dbg_trigger_tlv *trig;
6325 struct iwl_fw_dbg_trigger_ba *ba_trig;
6326
6327 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
6328 FW_DBG_TRIGGER_BA);
6329 if (!trig)
6330 return;
6331
6332 ba_trig = (void *)trig->data;
6333
6334 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
6335 return;
6336
6337 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
6338 "BAR received from %pM, tid %d, ssn %d",
6339 event->u.ba.sta->addr, event->u.ba.tid,
6340 event->u.ba.ssn);
6341 }
6342
iwl_mvm_mac_event_callback(struct ieee80211_hw * hw,struct ieee80211_vif * vif,const struct ieee80211_event * event)6343 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
6344 struct ieee80211_vif *vif,
6345 const struct ieee80211_event *event)
6346 {
6347 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6348
6349 switch (event->type) {
6350 case MLME_EVENT:
6351 iwl_mvm_event_mlme_callback(mvm, vif, event);
6352 break;
6353 case BAR_RX_EVENT:
6354 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
6355 break;
6356 case BA_FRAME_TIMEOUT:
6357 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,
6358 event->u.ba.tid);
6359 break;
6360 default:
6361 break;
6362 }
6363 }
6364
6365 #define SYNC_RX_QUEUE_TIMEOUT (HZ)
iwl_mvm_sync_rx_queues_internal(struct iwl_mvm * mvm,enum iwl_mvm_rxq_notif_type type,bool sync,const void * data,u32 size)6366 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
6367 enum iwl_mvm_rxq_notif_type type,
6368 bool sync,
6369 const void *data, u32 size)
6370 {
6371 struct {
6372 struct iwl_rxq_sync_cmd cmd;
6373 struct iwl_mvm_internal_rxq_notif notif;
6374 } __packed cmd = {
6375 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1),
6376 .cmd.count =
6377 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) +
6378 size),
6379 .notif.type = type,
6380 .notif.sync = sync,
6381 };
6382 struct iwl_host_cmd hcmd = {
6383 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD),
6384 .data[0] = &cmd,
6385 .len[0] = sizeof(cmd),
6386 .data[1] = data,
6387 .len[1] = size,
6388 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC),
6389 };
6390 int ret;
6391
6392 /* size must be a multiple of DWORD */
6393 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3)))
6394 return;
6395
6396 if (!iwl_mvm_has_new_rx_api(mvm))
6397 return;
6398
6399 if (sync) {
6400 cmd.notif.cookie = mvm->queue_sync_cookie;
6401 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1;
6402 }
6403
6404 ret = iwl_mvm_send_cmd(mvm, &hcmd);
6405 if (ret) {
6406 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
6407 goto out;
6408 }
6409
6410 if (sync) {
6411 lockdep_assert_held(&mvm->mutex);
6412 ret = wait_event_timeout(mvm->rx_sync_waitq,
6413 READ_ONCE(mvm->queue_sync_state) == 0 ||
6414 iwl_mvm_is_radio_hw_killed(mvm),
6415 SYNC_RX_QUEUE_TIMEOUT);
6416 WARN_ONCE(!ret && !iwl_mvm_is_radio_hw_killed(mvm),
6417 "queue sync: failed to sync, state is 0x%lx, cookie %d\n",
6418 mvm->queue_sync_state,
6419 mvm->queue_sync_cookie);
6420 }
6421
6422 out:
6423 if (sync) {
6424 mvm->queue_sync_state = 0;
6425 mvm->queue_sync_cookie++;
6426 }
6427 }
6428
iwl_mvm_sync_rx_queues(struct ieee80211_hw * hw)6429 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
6430 {
6431 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6432
6433 mutex_lock(&mvm->mutex);
6434 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0);
6435 mutex_unlock(&mvm->mutex);
6436 }
6437
6438 int
iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_ftm_responder_stats * stats)6439 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw,
6440 struct ieee80211_vif *vif,
6441 struct cfg80211_ftm_responder_stats *stats)
6442 {
6443 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6444 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6445
6446 if (vif->p2p || vif->type != NL80211_IFTYPE_AP ||
6447 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder)
6448 return -EINVAL;
6449
6450 mutex_lock(&mvm->mutex);
6451 *stats = mvm->ftm_resp_stats;
6452 mutex_unlock(&mvm->mutex);
6453
6454 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) |
6455 BIT(NL80211_FTM_STATS_PARTIAL_NUM) |
6456 BIT(NL80211_FTM_STATS_FAILED_NUM) |
6457 BIT(NL80211_FTM_STATS_ASAP_NUM) |
6458 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) |
6459 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) |
6460 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) |
6461 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) |
6462 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM);
6463
6464 return 0;
6465 }
6466
iwl_mvm_start_pmsr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_pmsr_request * request)6467 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6468 struct cfg80211_pmsr_request *request)
6469 {
6470 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6471 int ret;
6472
6473 mutex_lock(&mvm->mutex);
6474 ret = iwl_mvm_ftm_start(mvm, vif, request);
6475 mutex_unlock(&mvm->mutex);
6476
6477 return ret;
6478 }
6479
iwl_mvm_abort_pmsr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_pmsr_request * request)6480 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6481 struct cfg80211_pmsr_request *request)
6482 {
6483 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6484
6485 mutex_lock(&mvm->mutex);
6486 iwl_mvm_ftm_abort(mvm, request);
6487 mutex_unlock(&mvm->mutex);
6488 }
6489
iwl_mvm_can_hw_csum(struct sk_buff * skb)6490 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb)
6491 {
6492 u8 protocol = ip_hdr(skb)->protocol;
6493
6494 if (!IS_ENABLED(CONFIG_INET))
6495 return false;
6496
6497 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP;
6498 }
6499
iwl_mvm_mac_can_aggregate(struct ieee80211_hw * hw,struct sk_buff * head,struct sk_buff * skb)6500 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw,
6501 struct sk_buff *head,
6502 struct sk_buff *skb)
6503 {
6504 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6505
6506 /* For now don't aggregate IPv6 in AMSDU */
6507 if (skb->protocol != htons(ETH_P_IP))
6508 return false;
6509
6510 if (!iwl_mvm_is_csum_supported(mvm))
6511 return true;
6512
6513 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head);
6514 }
6515
iwl_mvm_set_hw_timestamp(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_set_hw_timestamp * hwts)6516 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw,
6517 struct ieee80211_vif *vif,
6518 struct cfg80211_set_hw_timestamp *hwts)
6519 {
6520 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6521 u32 protocols = 0;
6522 int ret;
6523
6524 /* HW timestamping is only supported for a specific station */
6525 if (!hwts->macaddr)
6526 return -EOPNOTSUPP;
6527
6528 if (hwts->enable)
6529 protocols =
6530 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM;
6531
6532 mutex_lock(&mvm->mutex);
6533 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols);
6534 mutex_unlock(&mvm->mutex);
6535
6536 return ret;
6537 }
6538
6539 const struct ieee80211_ops iwl_mvm_hw_ops = {
6540 .tx = iwl_mvm_mac_tx,
6541 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue,
6542 .ampdu_action = iwl_mvm_mac_ampdu_action,
6543 .get_antenna = iwl_mvm_op_get_antenna,
6544 .set_antenna = iwl_mvm_op_set_antenna,
6545 .start = iwl_mvm_mac_start,
6546 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
6547 .stop = iwl_mvm_mac_stop,
6548 .add_interface = iwl_mvm_mac_add_interface,
6549 .remove_interface = iwl_mvm_mac_remove_interface,
6550 .config = iwl_mvm_mac_config,
6551 .prepare_multicast = iwl_mvm_prepare_multicast,
6552 .configure_filter = iwl_mvm_configure_filter,
6553 .config_iface_filter = iwl_mvm_config_iface_filter,
6554 .bss_info_changed = iwl_mvm_bss_info_changed,
6555 .hw_scan = iwl_mvm_mac_hw_scan,
6556 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
6557 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
6558 .sta_state = iwl_mvm_mac_sta_state,
6559 .sta_notify = iwl_mvm_mac_sta_notify,
6560 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
6561 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
6562 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
6563 .sta_rc_update = iwl_mvm_sta_rc_update,
6564 .conf_tx = iwl_mvm_mac_conf_tx,
6565 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
6566 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx,
6567 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
6568 .flush = iwl_mvm_mac_flush,
6569 .flush_sta = iwl_mvm_mac_flush_sta,
6570 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
6571 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
6572 .set_key = iwl_mvm_mac_set_key,
6573 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
6574 .remain_on_channel = iwl_mvm_roc,
6575 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
6576 .add_chanctx = iwl_mvm_add_chanctx,
6577 .remove_chanctx = iwl_mvm_remove_chanctx,
6578 .change_chanctx = iwl_mvm_change_chanctx,
6579 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
6580 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
6581 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
6582
6583 .start_ap = iwl_mvm_start_ap,
6584 .stop_ap = iwl_mvm_stop_ap,
6585 .join_ibss = iwl_mvm_start_ibss,
6586 .leave_ibss = iwl_mvm_stop_ibss,
6587
6588 .tx_last_beacon = iwl_mvm_tx_last_beacon,
6589
6590 .set_tim = iwl_mvm_set_tim,
6591
6592 .channel_switch = iwl_mvm_channel_switch,
6593 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch,
6594 .post_channel_switch = iwl_mvm_post_channel_switch,
6595 .abort_channel_switch = iwl_mvm_abort_channel_switch,
6596 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon,
6597
6598 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
6599 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
6600 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
6601
6602 .event_callback = iwl_mvm_mac_event_callback,
6603
6604 .sync_rx_queues = iwl_mvm_sync_rx_queues,
6605
6606 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
6607
6608 #ifdef CONFIG_PM_SLEEP
6609 /* look at d3.c */
6610 .suspend = iwl_mvm_suspend,
6611 .resume = iwl_mvm_resume,
6612 .set_wakeup = iwl_mvm_set_wakeup,
6613 .set_rekey_data = iwl_mvm_set_rekey_data,
6614 #if IS_ENABLED(CONFIG_IPV6)
6615 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
6616 #endif
6617 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
6618 #endif
6619 .get_survey = iwl_mvm_mac_get_survey,
6620 .sta_statistics = iwl_mvm_mac_sta_statistics,
6621 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats,
6622 .start_pmsr = iwl_mvm_start_pmsr,
6623 .abort_pmsr = iwl_mvm_abort_pmsr,
6624
6625 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate,
6626 #ifdef CONFIG_IWLWIFI_DEBUGFS
6627 .vif_add_debugfs = iwl_mvm_vif_add_debugfs,
6628 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs,
6629 #endif
6630 .set_hw_timestamp = iwl_mvm_set_hw_timestamp,
6631 };
6632