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Merge tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
[drm/drm-misc.git] / drivers / net / wireless / intel / iwlwifi / mvm / mac80211.c
blob07778d55878bce748ce76ca80e4c7ed3b0b0f5b7
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-nvm-utils.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 #define IWL_MVM_LIMITS(ap) \
34 { \
35 .max = 1, \
36 .types = BIT(NL80211_IFTYPE_STATION), \
37 }, \
38 { \
39 .max = 1, \
40 .types = 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 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
50 IWL_MVM_LIMITS(0)
51 };
52
53 static const struct ieee80211_iface_limit iwl_mvm_limits_ap[] = {
54 IWL_MVM_LIMITS(BIT(NL80211_IFTYPE_AP))
55 };
56
57 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
58 {
59 .num_different_channels = 2,
60 .max_interfaces = 3,
61 .limits = iwl_mvm_limits,
62 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
63 },
64 {
65 .num_different_channels = 1,
66 .max_interfaces = 3,
67 .limits = iwl_mvm_limits_ap,
68 .n_limits = ARRAY_SIZE(iwl_mvm_limits_ap),
69 },
70 };
71
72 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = {
73 .max_peers = IWL_MVM_TOF_MAX_APS,
74 .report_ap_tsf = 1,
75 .randomize_mac_addr = 1,
76
77 .ftm = {
78 .supported = 1,
79 .asap = 1,
80 .non_asap = 1,
81 .request_lci = 1,
82 .request_civicloc = 1,
83 .trigger_based = 1,
84 .non_trigger_based = 1,
85 .max_bursts_exponent = -1, /* all supported */
86 .max_ftms_per_burst = 0, /* no limits */
87 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
88 BIT(NL80211_CHAN_WIDTH_20) |
89 BIT(NL80211_CHAN_WIDTH_40) |
90 BIT(NL80211_CHAN_WIDTH_80) |
91 BIT(NL80211_CHAN_WIDTH_160),
92 .preambles = BIT(NL80211_PREAMBLE_LEGACY) |
93 BIT(NL80211_PREAMBLE_HT) |
94 BIT(NL80211_PREAMBLE_VHT) |
95 BIT(NL80211_PREAMBLE_HE),
96 },
97 };
98
99 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
100 enum set_key_cmd cmd,
101 struct ieee80211_vif *vif,
102 struct ieee80211_sta *sta,
103 struct ieee80211_key_conf *key);
104
105 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
106 {
107 int i;
108
109 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
110 for (i = 0; i < NUM_PHY_CTX; i++) {
111 mvm->phy_ctxts[i].id = i;
112 mvm->phy_ctxts[i].ref = 0;
113 }
114 }
115
116 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
117 const char *alpha2,
118 enum iwl_mcc_source src_id,
119 bool *changed)
120 {
121 struct ieee80211_regdomain *regd = NULL;
122 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
124 struct iwl_mcc_update_resp_v8 *resp;
125 u8 resp_ver;
126
127 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
128
129 lockdep_assert_held(&mvm->mutex);
130
131 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
132 if (IS_ERR_OR_NULL(resp)) {
133 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
134 PTR_ERR_OR_ZERO(resp));
135 resp = NULL;
136 goto out;
137 }
138
139 if (changed) {
140 u32 status = le32_to_cpu(resp->status);
141
142 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE ||
143 status == MCC_RESP_ILLEGAL);
144 }
145 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP,
146 MCC_UPDATE_CMD, 0);
147 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver);
148
149 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
150 __le32_to_cpu(resp->n_channels),
151 resp->channels,
152 __le16_to_cpu(resp->mcc),
153 __le16_to_cpu(resp->geo_info),
154 le32_to_cpu(resp->cap), resp_ver);
155 /* Store the return source id */
156 src_id = resp->source_id;
157 if (IS_ERR_OR_NULL(regd)) {
158 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
159 PTR_ERR_OR_ZERO(regd));
160 goto out;
161 }
162
163 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
164 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
165 mvm->lar_regdom_set = true;
166 mvm->mcc_src = src_id;
167
168 if (!iwl_puncturing_is_allowed_in_bios(mvm->bios_enable_puncturing,
169 le16_to_cpu(resp->mcc)))
170 ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING);
171 else
172 __clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags);
173
174 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc));
175
176 out:
177 kfree(resp);
178 return regd;
179 }
180
181 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
182 {
183 bool changed;
184 struct ieee80211_regdomain *regd;
185
186 if (!iwl_mvm_is_lar_supported(mvm))
187 return;
188
189 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
190 if (!IS_ERR_OR_NULL(regd)) {
191 /* only update the regulatory core if changed */
192 if (changed)
193 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
194
195 kfree(regd);
196 }
197 }
198
199 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
200 bool *changed)
201 {
202 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
203 iwl_mvm_is_wifi_mcc_supported(mvm) ?
204 MCC_SOURCE_GET_CURRENT :
205 MCC_SOURCE_OLD_FW, changed);
206 }
207
208 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync)
209 {
210 enum iwl_mcc_source used_src;
211 struct ieee80211_regdomain *regd;
212 int ret;
213 bool changed;
214 const struct ieee80211_regdomain *r =
215 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd);
216
217 if (!r)
218 return -ENOENT;
219
220 /* save the last source in case we overwrite it below */
221 used_src = mvm->mcc_src;
222 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
223 /* Notify the firmware we support wifi location updates */
224 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
225 if (!IS_ERR_OR_NULL(regd))
226 kfree(regd);
227 }
228
229 /* Now set our last stored MCC and source */
230 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
231 &changed);
232 if (IS_ERR_OR_NULL(regd))
233 return -EIO;
234
235 /* update cfg80211 if the regdomain was changed or the caller explicitly
236 * asked to update regdomain
237 */
238 if (changed || force_regd_sync)
239 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd);
240 else
241 ret = 0;
242
243 kfree(regd);
244 return ret;
245 }
246
247 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */
248 static const u8 he_if_types_ext_capa_sta[] = {
249 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
250 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,
251 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
252 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
253 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
254 };
255
256 static const u8 tm_if_types_ext_capa_sta[] = {
257 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
258 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT |
259 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT,
260 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
261 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
262 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
263 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT,
264 };
265
266 /* Additional interface types for which extended capabilities are
267 * specified separately
268 */
269
270 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \
271 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \
272 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \
273 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \
274 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY))
275 #define IWL_MVM_MLD_CAPA_OPS FIELD_PREP_CONST( \
276 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \
277 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME)
278
279 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = {
280 {
281 .iftype = NL80211_IFTYPE_STATION,
282 .extended_capabilities = he_if_types_ext_capa_sta,
283 .extended_capabilities_mask = he_if_types_ext_capa_sta,
284 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta),
285 /* relevant only if EHT is supported */
286 .eml_capabilities = IWL_MVM_EMLSR_CAPA,
287 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS,
288 },
289 {
290 .iftype = NL80211_IFTYPE_STATION,
291 .extended_capabilities = tm_if_types_ext_capa_sta,
292 .extended_capabilities_mask = tm_if_types_ext_capa_sta,
293 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta),
294 /* relevant only if EHT is supported */
295 .eml_capabilities = IWL_MVM_EMLSR_CAPA,
296 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS,
297 },
298 };
299
300 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
301 {
302 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
303 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
304 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm);
305 return 0;
306 }
307
308 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
309 {
310 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
311
312 /* This has been tested on those devices only */
313 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 &&
314 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000)
315 return -EOPNOTSUPP;
316
317 if (!mvm->nvm_data)
318 return -EBUSY;
319
320 /* mac80211 ensures the device is not started,
321 * so the firmware cannot be running
322 */
323
324 mvm->set_tx_ant = tx_ant;
325 mvm->set_rx_ant = rx_ant;
326
327 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw);
328
329 return 0;
330 }
331
332 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
333 {
334 struct ieee80211_hw *hw = mvm->hw;
335 int num_mac, ret, i;
336 static const u32 mvm_ciphers[] = {
337 WLAN_CIPHER_SUITE_WEP40,
338 WLAN_CIPHER_SUITE_WEP104,
339 WLAN_CIPHER_SUITE_TKIP,
340 WLAN_CIPHER_SUITE_CCMP,
341 };
342 #ifdef CONFIG_PM_SLEEP
343 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
344 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
345 #endif
346 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);
347 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);
348
349 /* Tell mac80211 our characteristics */
350 ieee80211_hw_set(hw, SIGNAL_DBM);
351 ieee80211_hw_set(hw, SPECTRUM_MGMT);
352 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
353 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
354 ieee80211_hw_set(hw, SUPPORTS_PS);
355 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
356 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
357 ieee80211_hw_set(hw, CONNECTION_MONITOR);
358 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
359 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
360 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
361 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
362 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
363 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
364 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ);
365 ieee80211_hw_set(hw, STA_MMPDU_TXQ);
366
367 /* Set this early since we need to have it for the check below */
368 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable &&
369 !iwlwifi_mod_params.disable_11ax &&
370 !iwlwifi_mod_params.disable_11be) {
371 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO;
372 /* we handle this already earlier, but need it for MLO */
373 ieee80211_hw_set(hw, HANDLES_QUIET_CSA);
374 }
375
376 /* With MLD FW API, it tracks timing by itself,
377 * no need for any timing from the host
378 */
379 if (!mvm->mld_api_is_used)
380 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
381
382 /*
383 * On older devices, enabling TX A-MSDU occasionally leads to
384 * something getting messed up, the command read from the FIFO
385 * gets out of sync and isn't a TX command, so that we have an
386 * assert EDC.
387 *
388 * It's not clear where the bug is, but since we didn't used to
389 * support A-MSDU until moving the mac80211 iTXQs, just leave it
390 * for older devices. We also don't see this issue on any newer
391 * devices.
392 */
393 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000)
394 ieee80211_hw_set(hw, TX_AMSDU);
395 ieee80211_hw_set(hw, TX_FRAG_LIST);
396
397 if (iwl_mvm_has_tlc_offload(mvm)) {
398 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
399 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
400 }
401
402 /* We want to use the mac80211's reorder buffer for 9000 */
403 if (iwl_mvm_has_new_rx_api(mvm) &&
404 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000)
405 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
406
407 if (fw_has_capa(&mvm->fw->ucode_capa,
408 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
409 ieee80211_hw_set(hw, AP_LINK_PS);
410 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
411 /*
412 * we absolutely need this for the new TX API since that comes
413 * with many more queues than the current code can deal with
414 * for station powersave
415 */
416 return -EINVAL;
417 }
418
419 if (mvm->trans->num_rx_queues > 1)
420 ieee80211_hw_set(hw, USES_RSS);
421
422 if (mvm->trans->max_skb_frags)
423 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
424
425 hw->queues = IEEE80211_NUM_ACS;
426 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
427 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
428 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
429 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
430 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
431
432 hw->radiotap_timestamp.units_pos =
433 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
434 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
435 /* this is the case for CCK frames, it's better (only 8) for OFDM */
436 hw->radiotap_timestamp.accuracy = 22;
437
438 if (!iwl_mvm_has_tlc_offload(mvm))
439 hw->rate_control_algorithm = RS_NAME;
440
441 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
442 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
443 hw->max_tx_fragments = mvm->trans->max_skb_frags;
444
445 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
446 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
447 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
448 hw->wiphy->cipher_suites = mvm->ciphers;
449
450 if (iwl_mvm_has_new_rx_api(mvm)) {
451 mvm->ciphers[hw->wiphy->n_cipher_suites] =
452 WLAN_CIPHER_SUITE_GCMP;
453 hw->wiphy->n_cipher_suites++;
454 mvm->ciphers[hw->wiphy->n_cipher_suites] =
455 WLAN_CIPHER_SUITE_GCMP_256;
456 hw->wiphy->n_cipher_suites++;
457 }
458
459 if (iwlwifi_mod_params.swcrypto)
460 IWL_ERR(mvm,
461 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n");
462 if (!iwlwifi_mod_params.bt_coex_active)
463 IWL_ERR(mvm,
464 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n");
465
466 ieee80211_hw_set(hw, MFP_CAPABLE);
467 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC;
468 hw->wiphy->n_cipher_suites++;
469 if (iwl_mvm_has_new_rx_api(mvm)) {
470 mvm->ciphers[hw->wiphy->n_cipher_suites] =
471 WLAN_CIPHER_SUITE_BIP_GMAC_128;
472 hw->wiphy->n_cipher_suites++;
473 mvm->ciphers[hw->wiphy->n_cipher_suites] =
474 WLAN_CIPHER_SUITE_BIP_GMAC_256;
475 hw->wiphy->n_cipher_suites++;
476 }
477
478 wiphy_ext_feature_set(hw->wiphy,
479 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
480 wiphy_ext_feature_set(hw->wiphy,
481 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT);
482
483 if (fw_has_capa(&mvm->fw->ucode_capa,
484 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) {
485 wiphy_ext_feature_set(hw->wiphy,
486 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);
487 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa;
488 }
489
490 if (sec_key_ver &&
491 fw_has_capa(&mvm->fw->ucode_capa,
492 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT))
493 wiphy_ext_feature_set(hw->wiphy,
494 NL80211_EXT_FEATURE_BEACON_PROTECTION);
495 else if (fw_has_capa(&mvm->fw->ucode_capa,
496 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT))
497 wiphy_ext_feature_set(hw->wiphy,
498 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT);
499
500 if (fw_has_capa(&mvm->fw->ucode_capa,
501 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM))
502 hw->wiphy->hw_timestamp_max_peers = 1;
503
504 if (fw_has_capa(&mvm->fw->ucode_capa,
505 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT))
506 wiphy_ext_feature_set(hw->wiphy,
507 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT);
508
509 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
510 hw->wiphy->features |=
511 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
512 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
513 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
514
515 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
516 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
517 hw->chanctx_data_size = sizeof(u16);
518 hw->txq_data_size = sizeof(struct iwl_mvm_txq);
519
520 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
521 BIT(NL80211_IFTYPE_P2P_CLIENT) |
522 BIT(NL80211_IFTYPE_AP) |
523 BIT(NL80211_IFTYPE_P2P_GO) |
524 BIT(NL80211_IFTYPE_P2P_DEVICE) |
525 BIT(NL80211_IFTYPE_ADHOC);
526
527 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
528 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
529
530 /* The new Tx API does not allow to pass the key or keyid of a MPDU to
531 * the hw, preventing us to control which key(id) to use per MPDU.
532 * Till that's fixed we can't use Extended Key ID for the newer cards.
533 */
534 if (!iwl_mvm_has_new_tx_api(mvm))
535 wiphy_ext_feature_set(hw->wiphy,
536 NL80211_EXT_FEATURE_EXT_KEY_ID);
537 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS;
538
539 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
540 if (iwl_mvm_is_lar_supported(mvm))
541 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
542 else
543 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
544 REGULATORY_DISABLE_BEACON_HINTS;
545
546 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
547 wiphy_ext_feature_set(hw->wiphy,
548 NL80211_EXT_FEATURE_DFS_CONCURRENT);
549
550 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
551 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
552 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ;
553
554 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
555 hw->wiphy->n_iface_combinations =
556 ARRAY_SIZE(iwl_mvm_iface_combinations);
557
558 hw->wiphy->max_remain_on_channel_duration = 10000;
559 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL;
560
561 /* Extract MAC address */
562 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
563 hw->wiphy->addresses = mvm->addresses;
564 hw->wiphy->n_addresses = 1;
565
566 /* Extract additional MAC addresses if available */
567 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
568 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
569
570 for (i = 1; i < num_mac; i++) {
571 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
572 ETH_ALEN);
573 mvm->addresses[i].addr[5]++;
574 hw->wiphy->n_addresses++;
575 }
576
577 iwl_mvm_reset_phy_ctxts(mvm);
578
579 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
580
581 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
582
583 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
584 BUILD_BUG_ON(IWL_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
585 IWL_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
586
587 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
588 mvm->max_scans = IWL_MAX_UMAC_SCANS;
589 else
590 mvm->max_scans = IWL_MAX_LMAC_SCANS;
591
592 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
593 hw->wiphy->bands[NL80211_BAND_2GHZ] =
594 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
595 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
596 hw->wiphy->bands[NL80211_BAND_5GHZ] =
597 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
598
599 if (fw_has_capa(&mvm->fw->ucode_capa,
600 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
601 fw_has_api(&mvm->fw->ucode_capa,
602 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
603 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
604 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
605 }
606 if (fw_has_capa(&mvm->fw->ucode_capa,
607 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) &&
608 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels)
609 hw->wiphy->bands[NL80211_BAND_6GHZ] =
610 &mvm->nvm_data->bands[NL80211_BAND_6GHZ];
611
612 hw->wiphy->hw_version = mvm->trans->hw_id;
613
614 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
615 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
616 else
617 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
618
619 hw->wiphy->max_sched_scan_reqs = 1;
620 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
621 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw);
622 /* we create the 802.11 header and zero length SSID IE. */
623 hw->wiphy->max_sched_scan_ie_len =
624 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
625 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
626 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
627
628 /*
629 * the firmware uses u8 for num of iterations, but 0xff is saved for
630 * infinite loop, so the maximum number of iterations is actually 254.
631 */
632 hw->wiphy->max_sched_scan_plan_iterations = 254;
633
634 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
635 NL80211_FEATURE_LOW_PRIORITY_SCAN |
636 NL80211_FEATURE_P2P_GO_OPPPS |
637 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
638 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
639
640 /* when firmware supports RLC/SMPS offload, do not set these
641 * driver features, since it's no longer supported by driver.
642 */
643 if (!iwl_mvm_has_rlc_offload(mvm))
644 hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS |
645 NL80211_FEATURE_DYNAMIC_SMPS;
646
647 if (fw_has_capa(&mvm->fw->ucode_capa,
648 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
649 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
650 if (fw_has_capa(&mvm->fw->ucode_capa,
651 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
652 hw->wiphy->features |= NL80211_FEATURE_QUIET;
653
654 if (fw_has_capa(&mvm->fw->ucode_capa,
655 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
656 hw->wiphy->features |=
657 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
658
659 if (fw_has_capa(&mvm->fw->ucode_capa,
660 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
661 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
662
663 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL,
664 IWL_FW_CMD_VER_UNKNOWN) >= 3)
665 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK;
666
667 if (fw_has_api(&mvm->fw->ucode_capa,
668 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
669 wiphy_ext_feature_set(hw->wiphy,
670 NL80211_EXT_FEATURE_SCAN_START_TIME);
671 wiphy_ext_feature_set(hw->wiphy,
672 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
673 }
674
675 if (iwl_mvm_is_oce_supported(mvm)) {
676 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0);
677
678 wiphy_ext_feature_set(hw->wiphy,
679 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP);
680 wiphy_ext_feature_set(hw->wiphy,
681 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME);
682 wiphy_ext_feature_set(hw->wiphy,
683 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE);
684
685 /* Old firmware also supports probe deferral and suppression */
686 if (scan_ver < 15)
687 wiphy_ext_feature_set(hw->wiphy,
688 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION);
689 }
690
691 hw->wiphy->iftype_ext_capab = NULL;
692 hw->wiphy->num_iftype_ext_capab = 0;
693
694 if (mvm->nvm_data->sku_cap_11ax_enable &&
695 !iwlwifi_mod_params.disable_11ax) {
696 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa;
697 hw->wiphy->num_iftype_ext_capab =
698 ARRAY_SIZE(add_iftypes_ext_capa) - 1;
699
700 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
701 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID);
702 }
703
704 if (iwl_fw_lookup_cmd_ver(mvm->fw,
705 WIDE_ID(DATA_PATH_GROUP,
706 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD),
707 IWL_FW_CMD_VER_UNKNOWN) >= 1) {
708 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n");
709
710 if (!hw->wiphy->iftype_ext_capab) {
711 hw->wiphy->num_iftype_ext_capab = 1;
712 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa +
713 ARRAY_SIZE(add_iftypes_ext_capa) - 1;
714 } else {
715 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1;
716 }
717 }
718
719 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP,
720 TOF_RANGE_REQ_CMD),
721 IWL_FW_CMD_VER_UNKNOWN) >= 11) {
722 wiphy_ext_feature_set(hw->wiphy,
723 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE);
724
725 if (fw_has_capa(&mvm->fw->ucode_capa,
726 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT))
727 wiphy_ext_feature_set(hw->wiphy,
728 NL80211_EXT_FEATURE_SECURE_LTF);
729 }
730
731 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
732
733 ieee80211_hw_set(hw, DISALLOW_PUNCTURING_5GHZ);
734
735 #ifdef CONFIG_PM_SLEEP
736 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) &&
737 device_can_wakeup(mvm->trans->dev)) {
738 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
739 WIPHY_WOWLAN_DISCONNECT |
740 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
741 WIPHY_WOWLAN_RFKILL_RELEASE |
742 WIPHY_WOWLAN_NET_DETECT;
743 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
744 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
745 WIPHY_WOWLAN_4WAY_HANDSHAKE;
746
747 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
748 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
749 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
750 mvm->wowlan.max_nd_match_sets =
751 iwl_umac_scan_get_max_profiles(mvm->fw);
752 hw->wiphy->wowlan = &mvm->wowlan;
753 }
754 #endif
755
756 ret = iwl_mvm_leds_init(mvm);
757 if (ret)
758 return ret;
759
760 if (fw_has_capa(&mvm->fw->ucode_capa,
761 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
762 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
763 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
764 ieee80211_hw_set(hw, TDLS_WIDER_BW);
765 }
766
767 if (fw_has_capa(&mvm->fw->ucode_capa,
768 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
769 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
770 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
771 }
772
773 hw->netdev_features |= mvm->cfg->features;
774 if (!iwl_mvm_is_csum_supported(mvm))
775 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK;
776
777 if (mvm->cfg->vht_mu_mimo_supported)
778 wiphy_ext_feature_set(hw->wiphy,
779 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
780
781 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT))
782 wiphy_ext_feature_set(hw->wiphy,
783 NL80211_EXT_FEATURE_PROTECTED_TWT);
784
785 iwl_mvm_vendor_cmds_register(mvm);
786
787 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm);
788 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm);
789
790 ret = ieee80211_register_hw(mvm->hw);
791 if (ret) {
792 iwl_mvm_leds_exit(mvm);
793 }
794
795 return ret;
796 }
797
798 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
799 struct ieee80211_sta *sta)
800 {
801 if (likely(sta)) {
802 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0))
803 return;
804 } else {
805 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0))
806 return;
807 }
808
809 ieee80211_free_txskb(mvm->hw, skb);
810 }
811
812 void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
813 struct ieee80211_tx_control *control, struct sk_buff *skb)
814 {
815 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
816 struct ieee80211_sta *sta = control->sta;
817 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
818 struct ieee80211_hdr *hdr = (void *)skb->data;
819 bool offchannel = IEEE80211_SKB_CB(skb)->flags &
820 IEEE80211_TX_CTL_TX_OFFCHAN;
821 u32 link_id = u32_get_bits(info->control.flags,
822 IEEE80211_TX_CTRL_MLO_LINK);
823 struct ieee80211_sta *tmp_sta = sta;
824
825 if (iwl_mvm_is_radio_killed(mvm)) {
826 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
827 goto drop;
828 }
829
830 if (offchannel &&
831 !test_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status) &&
832 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
833 goto drop;
834
835 /*
836 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs
837 * so we treat the others as broadcast
838 */
839 if (ieee80211_is_mgmt(hdr->frame_control))
840 sta = NULL;
841
842 /* this shouldn't even happen: just drop */
843 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION &&
844 !offchannel)
845 goto drop;
846
847 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED &&
848 !ieee80211_is_probe_resp(hdr->frame_control)) {
849 /* translate MLD addresses to LINK addresses */
850 struct ieee80211_link_sta *link_sta =
851 rcu_dereference(tmp_sta->link[link_id]);
852 struct ieee80211_bss_conf *link_conf =
853 rcu_dereference(info->control.vif->link_conf[link_id]);
854 struct ieee80211_mgmt *mgmt;
855
856 if (WARN_ON(!link_sta || !link_conf))
857 goto drop;
858
859 /* if sta is NULL, the frame is a management frame */
860 mgmt = (void *)hdr;
861 memcpy(mgmt->da, link_sta->addr, ETH_ALEN);
862 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN);
863 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN);
864 }
865
866 iwl_mvm_tx_skb(mvm, skb, sta);
867 return;
868 drop:
869 ieee80211_free_txskb(hw, skb);
870 }
871
872 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq)
873 {
874 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
875 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
876 struct sk_buff *skb = NULL;
877
878 /*
879 * No need for threads to be pending here, they can leave the first
880 * taker all the work.
881 *
882 * mvmtxq->tx_request logic:
883 *
884 * If 0, no one is currently TXing, set to 1 to indicate current thread
885 * will now start TX and other threads should quit.
886 *
887 * If 1, another thread is currently TXing, set to 2 to indicate to
888 * that thread that there was another request. Since that request may
889 * have raced with the check whether the queue is empty, the TXing
890 * thread should check the queue's status one more time before leaving.
891 * This check is done in order to not leave any TX hanging in the queue
892 * until the next TX invocation (which may not even happen).
893 *
894 * If 2, another thread is currently TXing, and it will already double
895 * check the queue, so do nothing.
896 */
897 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2))
898 return;
899
900 rcu_read_lock();
901 do {
902 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL,
903 &mvmtxq->state) &&
904 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT,
905 &mvmtxq->state) &&
906 !test_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA,
907 &mvmtxq->state) &&
908 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) {
909 skb = ieee80211_tx_dequeue(hw, txq);
910
911 if (!skb) {
912 if (txq->sta)
913 IWL_DEBUG_TX(mvm,
914 "TXQ of sta %pM tid %d is now empty\n",
915 txq->sta->addr,
916 txq->tid);
917 break;
918 }
919
920 iwl_mvm_tx_skb(mvm, skb, txq->sta);
921 }
922 } while (atomic_dec_return(&mvmtxq->tx_request));
923 rcu_read_unlock();
924 }
925
926 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw,
927 struct ieee80211_txq *txq)
928 {
929 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
930 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
931
932 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) ||
933 !txq->sta) {
934 iwl_mvm_mac_itxq_xmit(hw, txq);
935 return;
936 }
937
938 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker
939 * to handle any packets we leave on the txq now
940 */
941
942 spin_lock_bh(&mvm->add_stream_lock);
943 /* The list is being deleted only after the queue is fully allocated. */
944 if (list_empty(&mvmtxq->list) &&
945 /* recheck under lock */
946 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) {
947 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs);
948 schedule_work(&mvm->add_stream_wk);
949 }
950 spin_unlock_bh(&mvm->add_stream_lock);
951 }
952
953 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
954 do { \
955 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
956 break; \
957 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
958 } while (0)
959
960 static void
961 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
962 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
963 enum ieee80211_ampdu_mlme_action action)
964 {
965 struct iwl_fw_dbg_trigger_tlv *trig;
966 struct iwl_fw_dbg_trigger_ba *ba_trig;
967
968 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
969 FW_DBG_TRIGGER_BA);
970 if (!trig)
971 return;
972
973 ba_trig = (void *)trig->data;
974
975 switch (action) {
976 case IEEE80211_AMPDU_TX_OPERATIONAL: {
977 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
978 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
979
980 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
981 "TX AGG START: MAC %pM tid %d ssn %d\n",
982 sta->addr, tid, tid_data->ssn);
983 break;
984 }
985 case IEEE80211_AMPDU_TX_STOP_CONT:
986 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
987 "TX AGG STOP: MAC %pM tid %d\n",
988 sta->addr, tid);
989 break;
990 case IEEE80211_AMPDU_RX_START:
991 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
992 "RX AGG START: MAC %pM tid %d ssn %d\n",
993 sta->addr, tid, rx_ba_ssn);
994 break;
995 case IEEE80211_AMPDU_RX_STOP:
996 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
997 "RX AGG STOP: MAC %pM tid %d\n",
998 sta->addr, tid);
999 break;
1000 default:
1001 break;
1002 }
1003 }
1004
1005 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
1006 struct ieee80211_vif *vif,
1007 struct ieee80211_ampdu_params *params)
1008 {
1009 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1010 int ret;
1011 struct ieee80211_sta *sta = params->sta;
1012 enum ieee80211_ampdu_mlme_action action = params->action;
1013 u16 tid = params->tid;
1014 u16 *ssn = &params->ssn;
1015 u16 buf_size = params->buf_size;
1016 bool amsdu = params->amsdu;
1017 u16 timeout = params->timeout;
1018
1019 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
1020 sta->addr, tid, action);
1021
1022 if (!(mvm->nvm_data->sku_cap_11n_enable))
1023 return -EACCES;
1024
1025 mutex_lock(&mvm->mutex);
1026
1027 switch (action) {
1028 case IEEE80211_AMPDU_RX_START:
1029 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id ==
1030 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) {
1031 struct iwl_mvm_vif *mvmvif;
1032 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id;
1033 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid];
1034
1035 mdata->opened_rx_ba_sessions = true;
1036 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1037 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk);
1038 }
1039 if (!iwl_enable_rx_ampdu()) {
1040 ret = -EINVAL;
1041 break;
1042 }
1043 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
1044 timeout);
1045 break;
1046 case IEEE80211_AMPDU_RX_STOP:
1047 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
1048 timeout);
1049 break;
1050 case IEEE80211_AMPDU_TX_START:
1051 if (!iwl_enable_tx_ampdu()) {
1052 ret = -EINVAL;
1053 break;
1054 }
1055 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
1056 break;
1057 case IEEE80211_AMPDU_TX_STOP_CONT:
1058 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
1059 break;
1060 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1061 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1062 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
1063 break;
1064 case IEEE80211_AMPDU_TX_OPERATIONAL:
1065 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
1066 buf_size, amsdu);
1067 break;
1068 default:
1069 WARN_ON_ONCE(1);
1070 ret = -EINVAL;
1071 break;
1072 }
1073
1074 if (!ret) {
1075 u16 rx_ba_ssn = 0;
1076
1077 if (action == IEEE80211_AMPDU_RX_START)
1078 rx_ba_ssn = *ssn;
1079
1080 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1081 rx_ba_ssn, action);
1082 }
1083 mutex_unlock(&mvm->mutex);
1084
1085 return ret;
1086 }
1087
1088 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1089 struct ieee80211_vif *vif)
1090 {
1091 struct iwl_mvm *mvm = data;
1092 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1093 struct iwl_probe_resp_data *probe_data;
1094 unsigned int link_id;
1095
1096 mvmvif->uploaded = false;
1097
1098 spin_lock_bh(&mvm->time_event_lock);
1099 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1100 spin_unlock_bh(&mvm->time_event_lock);
1101
1102 mvmvif->roc_activity = ROC_NUM_ACTIVITIES;
1103
1104 mvmvif->bf_enabled = false;
1105 mvmvif->ba_enabled = false;
1106 mvmvif->ap_sta = NULL;
1107
1108 mvmvif->esr_active = false;
1109 vif->driver_flags &= ~IEEE80211_VIF_EML_ACTIVE;
1110
1111 for_each_mvm_vif_valid_link(mvmvif, link_id) {
1112 mvmvif->link[link_id]->ap_sta_id = IWL_INVALID_STA;
1113 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID;
1114 mvmvif->link[link_id]->phy_ctxt = NULL;
1115 mvmvif->link[link_id]->active = 0;
1116 mvmvif->link[link_id]->igtk = NULL;
1117 memset(&mvmvif->link[link_id]->bf_data, 0,
1118 sizeof(mvmvif->link[link_id]->bf_data));
1119 }
1120
1121 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,
1122 lockdep_is_held(&mvm->mutex));
1123 if (probe_data)
1124 kfree_rcu(probe_data, rcu_head);
1125 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);
1126 }
1127
1128 static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta)
1129 {
1130 struct iwl_mvm *mvm = data;
1131 struct iwl_mvm_sta *mvm_sta;
1132 struct ieee80211_vif *vif;
1133 int link_id;
1134
1135 mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1136 vif = mvm_sta->vif;
1137
1138 if (!sta->valid_links)
1139 return;
1140
1141 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) {
1142 struct iwl_mvm_link_sta *mvm_link_sta;
1143
1144 mvm_link_sta =
1145 rcu_dereference_check(mvm_sta->link[link_id],
1146 lockdep_is_held(&mvm->mutex));
1147 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) {
1148 /*
1149 * We have a link STA but the link is inactive in
1150 * mac80211. This will happen if we failed to
1151 * deactivate the link but mac80211 roll back the
1152 * deactivation of the link.
1153 * Delete the stale data to avoid issues later on.
1154 */
1155 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta,
1156 link_id, false);
1157 }
1158 }
1159 }
1160
1161 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1162 {
1163 iwl_mvm_stop_device(mvm);
1164
1165 mvm->cur_aid = 0;
1166
1167 mvm->scan_status = 0;
1168 mvm->ps_disabled = false;
1169 mvm->rfkill_safe_init_done = false;
1170
1171 /* just in case one was running */
1172 iwl_mvm_cleanup_roc_te(mvm);
1173 ieee80211_remain_on_channel_expired(mvm->hw);
1174
1175 iwl_mvm_ftm_restart(mvm);
1176
1177 /*
1178 * cleanup all interfaces, even inactive ones, as some might have
1179 * gone down during the HW restart
1180 */
1181 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
1182
1183 /* cleanup stations as links may be gone after restart */
1184 ieee80211_iterate_stations_atomic(mvm->hw,
1185 iwl_mvm_cleanup_sta_iterator, mvm);
1186
1187 mvm->p2p_device_vif = NULL;
1188
1189 iwl_mvm_reset_phy_ctxts(mvm);
1190 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1191 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1192 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1193
1194 ieee80211_wake_queues(mvm->hw);
1195
1196 mvm->rx_ba_sessions = 0;
1197 mvm->fwrt.dump.conf = FW_DBG_INVALID;
1198 mvm->monitor_on = false;
1199 #ifdef CONFIG_IWLWIFI_DEBUGFS
1200 mvm->beacon_inject_active = false;
1201 #endif
1202
1203 /* keep statistics ticking */
1204 iwl_mvm_accu_radio_stats(mvm);
1205 }
1206
1207 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1208 {
1209 bool fast_resume = false;
1210 int ret;
1211
1212 lockdep_assert_held(&mvm->mutex);
1213
1214 ret = iwl_mvm_mei_get_ownership(mvm);
1215 if (ret)
1216 return ret;
1217
1218 if (mvm->mei_nvm_data) {
1219 /* We got the NIC, we can now free the MEI NVM data */
1220 kfree(mvm->mei_nvm_data);
1221 mvm->mei_nvm_data = NULL;
1222
1223 /*
1224 * We can't free the nvm_data we allocated based on the SAP
1225 * data because we registered to cfg80211 with the channels
1226 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data
1227 * just in order to be able free it later.
1228 * NULLify nvm_data so that we will read the NVM from the
1229 * firmware this time.
1230 */
1231 mvm->temp_nvm_data = mvm->nvm_data;
1232 mvm->nvm_data = NULL;
1233 }
1234
1235 #ifdef CONFIG_PM_SLEEP
1236 /* fast_resume will be cleared by iwl_mvm_fast_resume */
1237 fast_resume = mvm->fast_resume;
1238
1239 if (fast_resume) {
1240 iwl_mvm_mei_device_state(mvm, true);
1241 ret = iwl_mvm_fast_resume(mvm);
1242 if (ret) {
1243 iwl_mvm_stop_device(mvm);
1244 /* iwl_mvm_up() will be called further down */
1245 } else {
1246 /*
1247 * We clear IWL_MVM_STATUS_FIRMWARE_RUNNING upon
1248 * mac_down() so that debugfs will stop honoring
1249 * requests after we flush all the workers.
1250 * Set the IWL_MVM_STATUS_FIRMWARE_RUNNING bit again
1251 * now that we are back. This is a bit abusing the
1252 * flag since the firmware wasn't really ever stopped,
1253 * but this still serves the purpose.
1254 */
1255 set_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1256 }
1257 }
1258 #endif /* CONFIG_PM_SLEEP */
1259
1260 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1261 /*
1262 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1263 * so later code will - from now on - see that we're doing it.
1264 */
1265 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1266 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1267 /* Clean up some internal and mac80211 state on restart */
1268 iwl_mvm_restart_cleanup(mvm);
1269 }
1270
1271 /* we also want to load the firmware if fast_resume failed */
1272 if (!fast_resume || ret)
1273 ret = iwl_mvm_up(mvm);
1274
1275 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT,
1276 NULL);
1277 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC,
1278 NULL);
1279
1280 mvm->last_reset_or_resume_time_jiffies = jiffies;
1281
1282 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1283 /* Something went wrong - we need to finish some cleanup
1284 * that normally iwl_mvm_mac_restart_complete() below
1285 * would do.
1286 */
1287 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1288 }
1289
1290 return ret;
1291 }
1292
1293 int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1294 {
1295 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1296 int ret;
1297 int retry, max_retry = 0;
1298
1299 mutex_lock(&mvm->mutex);
1300
1301 /* we are starting the mac not in error flow, and restart is enabled */
1302 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) &&
1303 iwlwifi_mod_params.fw_restart) {
1304 max_retry = IWL_MAX_INIT_RETRY;
1305 /*
1306 * This will prevent mac80211 recovery flows to trigger during
1307 * init failures
1308 */
1309 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1310 }
1311
1312 for (retry = 0; retry <= max_retry; retry++) {
1313 ret = __iwl_mvm_mac_start(mvm);
1314 if (!ret)
1315 break;
1316
1317 IWL_ERR(mvm, "mac start retry %d\n", retry);
1318 }
1319 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1320
1321 mutex_unlock(&mvm->mutex);
1322
1323 iwl_mvm_mei_set_sw_rfkill_state(mvm);
1324
1325 return ret;
1326 }
1327
1328 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1329 {
1330 int ret;
1331
1332 guard(mvm)(mvm);
1333
1334 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1335
1336 ret = iwl_mvm_update_quotas(mvm, true, NULL);
1337 if (ret)
1338 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1339 ret);
1340
1341 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY);
1342
1343 /*
1344 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1345 * of packets the FW sent out, so we must reconnect.
1346 */
1347 iwl_mvm_teardown_tdls_peers(mvm);
1348
1349 IWL_INFO(mvm, "restart completed\n");
1350 }
1351
1352 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1353 enum ieee80211_reconfig_type reconfig_type)
1354 {
1355 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1356
1357 switch (reconfig_type) {
1358 case IEEE80211_RECONFIG_TYPE_RESTART:
1359 iwl_mvm_restart_complete(mvm);
1360 break;
1361 case IEEE80211_RECONFIG_TYPE_SUSPEND:
1362 break;
1363 }
1364 }
1365
1366 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm, bool suspend)
1367 {
1368 lockdep_assert_held(&mvm->mutex);
1369
1370 iwl_mvm_ftm_initiator_smooth_stop(mvm);
1371
1372 /* firmware counters are obviously reset now, but we shouldn't
1373 * partially track so also clear the fw_reset_accu counters.
1374 */
1375 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1376
1377 /* async_handlers_wk is now blocked */
1378
1379 if (!iwl_mvm_has_new_station_api(mvm->fw))
1380 iwl_mvm_rm_aux_sta(mvm);
1381
1382 if (suspend &&
1383 mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
1384 iwl_mvm_fast_suspend(mvm);
1385 /* From this point on, we won't touch the device */
1386 iwl_mvm_mei_device_state(mvm, false);
1387 } else {
1388 iwl_mvm_stop_device(mvm);
1389 }
1390
1391 iwl_mvm_async_handlers_purge(mvm);
1392 /* async_handlers_list is empty and will stay empty: HW is stopped */
1393
1394 /*
1395 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the
1396 * hw (as restart_complete() won't be called in this case) and mac80211
1397 * won't execute the restart.
1398 * But make sure to cleanup interfaces that have gone down before/during
1399 * HW restart was requested.
1400 */
1401 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) ||
1402 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1403 &mvm->status))
1404 ieee80211_iterate_interfaces(mvm->hw, 0,
1405 iwl_mvm_cleanup_iterator, mvm);
1406
1407 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1408 * make sure there's nothing left there and warn if any is found.
1409 */
1410 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1411 int i;
1412
1413 for (i = 0; i < mvm->max_scans; i++) {
1414 if (WARN_ONCE(mvm->scan_uid_status[i],
1415 "UMAC scan UID %d status was not cleaned\n",
1416 i))
1417 mvm->scan_uid_status[i] = 0;
1418 }
1419 }
1420 }
1421
1422 void iwl_mvm_mac_stop(struct ieee80211_hw *hw, bool suspend)
1423 {
1424 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1425
1426 /* Stop internal MLO scan, if running */
1427 mutex_lock(&mvm->mutex);
1428 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false);
1429 mutex_unlock(&mvm->mutex);
1430
1431 wiphy_work_cancel(mvm->hw->wiphy, &mvm->trig_link_selection_wk);
1432 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk);
1433 flush_work(&mvm->async_handlers_wk);
1434 flush_work(&mvm->add_stream_wk);
1435
1436 /*
1437 * Lock and clear the firmware running bit here already, so that
1438 * new commands coming in elsewhere, e.g. from debugfs, will not
1439 * be able to proceed. This is important here because one of those
1440 * debugfs files causes the firmware dump to be triggered, and if we
1441 * don't stop debugfs accesses before canceling that it could be
1442 * retriggered after we flush it but before we've cleared the bit.
1443 */
1444 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1445
1446 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
1447 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
1448
1449 /*
1450 * The work item could be running or queued if the
1451 * ROC time event stops just as we get here.
1452 */
1453 flush_work(&mvm->roc_done_wk);
1454
1455 iwl_mvm_mei_set_sw_rfkill_state(mvm);
1456
1457 mutex_lock(&mvm->mutex);
1458 __iwl_mvm_mac_stop(mvm, suspend);
1459 mutex_unlock(&mvm->mutex);
1460
1461 /*
1462 * The worker might have been waiting for the mutex, let it run and
1463 * discover that its list is now empty.
1464 */
1465 cancel_work_sync(&mvm->async_handlers_wk);
1466 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk);
1467 }
1468
1469 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1470 {
1471 u16 i;
1472
1473 lockdep_assert_held(&mvm->mutex);
1474
1475 for (i = 0; i < NUM_PHY_CTX; i++)
1476 if (!mvm->phy_ctxts[i].ref)
1477 return &mvm->phy_ctxts[i];
1478
1479 IWL_ERR(mvm, "No available PHY context\n");
1480 return NULL;
1481 }
1482
1483 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm,
1484 struct ieee80211_bss_conf *link_conf,
1485 s16 tx_power)
1486 {
1487 u32 cmd_id = REDUCE_TX_POWER_CMD;
1488 u32 mac_id = iwl_mvm_vif_from_mac80211(link_conf->vif)->id;
1489 int len;
1490 struct iwl_dev_tx_power_cmd_v3_v8 cmd = {
1491 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1492 .common.mac_context_id = cpu_to_le32(mac_id),
1493 };
1494 struct iwl_dev_tx_power_cmd cmd_v9_v10;
1495 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 3);
1496 u16 u_tx_power = tx_power == IWL_DEFAULT_MAX_TX_POWER ?
1497 IWL_DEV_MAX_TX_POWER : 8 * tx_power;
1498 void *cmd_data = &cmd;
1499
1500 cmd.common.pwr_restriction = cpu_to_le16(u_tx_power);
1501
1502 if (cmd_ver > 8) {
1503 /* Those fields sit on the same place for v9 and v10 */
1504 cmd_v9_v10.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC);
1505 cmd_v9_v10.common.mac_context_id = cpu_to_le32(mac_id);
1506 cmd_v9_v10.common.pwr_restriction = cpu_to_le16(u_tx_power);
1507 cmd_data = &cmd_v9_v10;
1508 }
1509
1510 if (cmd_ver == 10)
1511 len = sizeof(cmd_v9_v10.v10);
1512 else if (cmd_ver == 9)
1513 len = sizeof(cmd_v9_v10.v9);
1514 else if (cmd_ver == 8)
1515 len = sizeof(cmd.v8);
1516 else if (cmd_ver == 7)
1517 len = sizeof(cmd.v7);
1518 else if (cmd_ver == 6)
1519 len = sizeof(cmd.v6);
1520 else if (fw_has_api(&mvm->fw->ucode_capa,
1521 IWL_UCODE_TLV_API_REDUCE_TX_POWER))
1522 len = sizeof(cmd.v5);
1523 else if (fw_has_capa(&mvm->fw->ucode_capa,
1524 IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1525 len = sizeof(cmd.v4);
1526 else
1527 len = sizeof(cmd.v3);
1528
1529 /* all structs have the same common part, add its length */
1530 len += sizeof(cmd.common);
1531
1532 if (cmd_ver < 9)
1533 len += sizeof(cmd.per_band);
1534
1535 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, cmd_data);
1536
1537 }
1538
1539 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta)
1540 {
1541 struct ieee80211_hw *hw = data;
1542 int i;
1543
1544 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {
1545 struct iwl_mvm_txq *mvmtxq =
1546 iwl_mvm_txq_from_mac80211(sta->txq[i]);
1547
1548 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);
1549 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]);
1550 }
1551 }
1552
1553 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
1554 struct ieee80211_vif *vif,
1555 struct ieee80211_bss_conf *link_conf)
1556 {
1557 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1558 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1559 int ret;
1560
1561 mutex_lock(&mvm->mutex);
1562
1563 if (vif->type == NL80211_IFTYPE_STATION) {
1564 struct iwl_mvm_sta *mvmsta;
1565 unsigned int link_id = link_conf->link_id;
1566 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id;
1567
1568 mvmvif->csa_bcn_pending = false;
1569 mvmvif->csa_blocks_tx = false;
1570 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id);
1571
1572 if (WARN_ON(!mvmsta)) {
1573 ret = -EIO;
1574 goto out_unlock;
1575 }
1576
1577 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
1578 if (mvm->mld_api_is_used)
1579 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false);
1580 else
1581 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1582
1583 if (!fw_has_capa(&mvm->fw->ucode_capa,
1584 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
1585 ret = iwl_mvm_enable_beacon_filter(mvm, vif);
1586 if (ret)
1587 goto out_unlock;
1588
1589 iwl_mvm_stop_session_protection(mvm, vif);
1590 }
1591 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) {
1592 struct iwl_mvm_txq *mvmtxq =
1593 iwl_mvm_txq_from_mac80211(vif->txq);
1594
1595 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);
1596
1597 local_bh_disable();
1598 iwl_mvm_mac_itxq_xmit(hw, vif->txq);
1599 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw);
1600 local_bh_enable();
1601
1602 mvmvif->csa_blocks_tx = false;
1603 }
1604
1605 mvmvif->ps_disabled = false;
1606
1607 ret = iwl_mvm_power_update_ps(mvm);
1608
1609 out_unlock:
1610 if (mvmvif->csa_failed)
1611 ret = -EIO;
1612 mutex_unlock(&mvm->mutex);
1613
1614 return ret;
1615 }
1616
1617 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw,
1618 struct ieee80211_vif *vif,
1619 struct ieee80211_bss_conf *link_conf)
1620 {
1621 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1622 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1623 struct iwl_chan_switch_te_cmd cmd = {
1624 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
1625 mvmvif->color)),
1626 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),
1627 };
1628
1629 /*
1630 * In the new flow since FW is in charge of the timing,
1631 * if driver has canceled the channel switch he will receive the
1632 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it
1633 */
1634 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
1635 CHANNEL_SWITCH_ERROR_NOTIF, 0))
1636 return;
1637
1638 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id);
1639
1640 mutex_lock(&mvm->mutex);
1641 if (!fw_has_capa(&mvm->fw->ucode_capa,
1642 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
1643 iwl_mvm_remove_csa_period(mvm, vif);
1644 else
1645 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
1646 WIDE_ID(MAC_CONF_GROUP,
1647 CHANNEL_SWITCH_TIME_EVENT_CMD),
1648 0, sizeof(cmd), &cmd));
1649 mvmvif->csa_failed = true;
1650 mutex_unlock(&mvm->mutex);
1651
1652 /* If we're here, we can't support MLD */
1653 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf);
1654 }
1655
1656 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk)
1657 {
1658 struct iwl_mvm_vif *mvmvif;
1659 struct ieee80211_vif *vif;
1660
1661 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work);
1662 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1663
1664 /* Trigger disconnect (should clear the CSA state) */
1665 ieee80211_chswitch_done(vif, false, 0);
1666 }
1667
1668 static u8
1669 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef)
1670 {
1671 int data_start;
1672 int control_start;
1673 int bw;
1674
1675 if (chandef->width == NL80211_CHAN_WIDTH_320)
1676 bw = 320;
1677 else if (chandef->width == NL80211_CHAN_WIDTH_160)
1678 bw = 160;
1679 else
1680 return 0;
1681
1682 /* data is bw wide so the start is half the width */
1683 data_start = chandef->center_freq1 - bw / 2;
1684 /* control is 20Mhz width */
1685 control_start = chandef->chan->center_freq - 10;
1686
1687 return (control_start - data_start) / 80;
1688 }
1689
1690 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm,
1691 struct ieee80211_vif *vif)
1692 {
1693 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1694 int ret;
1695
1696 lockdep_assert_held(&mvm->mutex);
1697
1698 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1699 if (ret) {
1700 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1701 return ret;
1702 }
1703
1704 /* Only queue for this station is the mcast queue,
1705 * which shouldn't be in TFD mask anyway
1706 */
1707 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0,
1708 vif->type,
1709 IWL_STA_MULTICAST);
1710 }
1711
1712 static void iwl_mvm_prevent_esr_done_wk(struct wiphy *wiphy,
1713 struct wiphy_work *wk)
1714 {
1715 struct iwl_mvm_vif *mvmvif =
1716 container_of(wk, struct iwl_mvm_vif, prevent_esr_done_wk.work);
1717 struct iwl_mvm *mvm = mvmvif->mvm;
1718 struct ieee80211_vif *vif =
1719 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1720
1721 guard(mvm)(mvm);
1722 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_PREVENTION);
1723 }
1724
1725 static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk)
1726 {
1727 struct iwl_mvm_vif *mvmvif = container_of(wk, struct iwl_mvm_vif,
1728 mlo_int_scan_wk.work);
1729 struct ieee80211_vif *vif =
1730 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1731
1732 guard(mvm)(mvmvif->mvm);
1733 iwl_mvm_int_mlo_scan(mvmvif->mvm, vif);
1734 }
1735
1736 static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk)
1737 {
1738 struct iwl_mvm_vif *mvmvif =
1739 container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk);
1740 struct iwl_mvm *mvm = mvmvif->mvm;
1741 struct ieee80211_vif *vif =
1742 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1743
1744 guard(mvm)(mvm);
1745 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT);
1746 }
1747
1748 static void iwl_mvm_unblock_esr_tmp_non_bss(struct wiphy *wiphy,
1749 struct wiphy_work *wk)
1750 {
1751 struct iwl_mvm_vif *mvmvif =
1752 container_of(wk, struct iwl_mvm_vif,
1753 unblock_esr_tmp_non_bss_wk.work);
1754 struct iwl_mvm *mvm = mvmvif->mvm;
1755 struct ieee80211_vif *vif =
1756 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1757
1758 mutex_lock(&mvm->mutex);
1759 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TMP_NON_BSS);
1760 mutex_unlock(&mvm->mutex);
1761 }
1762
1763 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif)
1764 {
1765 lockdep_assert_held(&mvm->mutex);
1766
1767 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1768 return;
1769
1770 INIT_DELAYED_WORK(&mvmvif->csa_work,
1771 iwl_mvm_channel_switch_disconnect_wk);
1772
1773 wiphy_delayed_work_init(&mvmvif->prevent_esr_done_wk,
1774 iwl_mvm_prevent_esr_done_wk);
1775
1776 wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk,
1777 iwl_mvm_mlo_int_scan_wk);
1778
1779 wiphy_work_init(&mvmvif->unblock_esr_tpt_wk,
1780 iwl_mvm_unblock_esr_tpt);
1781
1782 wiphy_delayed_work_init(&mvmvif->unblock_esr_tmp_non_bss_wk,
1783 iwl_mvm_unblock_esr_tmp_non_bss);
1784 }
1785
1786 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1787 struct ieee80211_vif *vif)
1788 {
1789 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1790 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1791 int ret;
1792 int i;
1793
1794 mutex_lock(&mvm->mutex);
1795
1796 iwl_mvm_mac_init_mvmvif(mvm, mvmvif);
1797
1798 mvmvif->mvm = mvm;
1799
1800 /* the first link always points to the default one */
1801 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID;
1802 mvmvif->deflink.active = 0;
1803 mvmvif->link[0] = &mvmvif->deflink;
1804
1805 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf);
1806 if (ret)
1807 goto out;
1808
1809 /*
1810 * Not much to do here. The stack will not allow interface
1811 * types or combinations that we didn't advertise, so we
1812 * don't really have to check the types.
1813 */
1814
1815 /* make sure that beacon statistics don't go backwards with FW reset */
1816 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1817 for_each_mvm_vif_valid_link(mvmvif, i)
1818 mvmvif->link[i]->beacon_stats.accu_num_beacons +=
1819 mvmvif->link[i]->beacon_stats.num_beacons;
1820
1821 /* Allocate resources for the MAC context, and add it to the fw */
1822 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1823 if (ret)
1824 goto out;
1825
1826 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif);
1827
1828 /* Currently not much to do for NAN */
1829 if (vif->type == NL80211_IFTYPE_NAN) {
1830 ret = 0;
1831 goto out;
1832 }
1833
1834 /*
1835 * The AP binding flow can be done only after the beacon
1836 * template is configured (which happens only in the mac80211
1837 * start_ap() flow), and adding the broadcast station can happen
1838 * only after the binding.
1839 * In addition, since modifying the MAC before adding a bcast
1840 * station is not allowed by the FW, delay the adding of MAC context to
1841 * the point where we can also add the bcast station.
1842 * In short: there's not much we can do at this point, other than
1843 * allocating resources :)
1844 */
1845 if (vif->type == NL80211_IFTYPE_AP ||
1846 vif->type == NL80211_IFTYPE_ADHOC) {
1847 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1848 iwl_mvm_vif_dbgfs_add_link(mvm, vif);
1849 ret = 0;
1850 goto out;
1851 }
1852
1853 mvmvif->features |= hw->netdev_features;
1854
1855 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1856 if (ret)
1857 goto out_unlock;
1858
1859 ret = iwl_mvm_power_update_mac(mvm);
1860 if (ret)
1861 goto out_remove_mac;
1862
1863 /* beacon filtering */
1864 ret = iwl_mvm_disable_beacon_filter(mvm, vif);
1865 if (ret)
1866 goto out_remove_mac;
1867
1868 if (!mvm->bf_allowed_vif &&
1869 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1870 mvm->bf_allowed_vif = mvmvif;
1871 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1872 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1873 }
1874
1875 if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
1876 mvm->p2p_device_vif = vif;
1877
1878 iwl_mvm_tcm_add_vif(mvm, vif);
1879
1880 if (vif->type == NL80211_IFTYPE_MONITOR) {
1881 mvm->monitor_on = true;
1882 mvm->monitor_p80 =
1883 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper);
1884 }
1885
1886 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1887 iwl_mvm_vif_dbgfs_add_link(mvm, vif);
1888
1889 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
1890 vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1891 !mvm->csme_vif && mvm->mei_registered) {
1892 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr);
1893 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev);
1894 mvm->csme_vif = vif;
1895 }
1896
1897 out:
1898 if (!ret && (vif->type == NL80211_IFTYPE_AP ||
1899 vif->type == NL80211_IFTYPE_ADHOC))
1900 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif);
1901
1902 goto out_unlock;
1903
1904 out_remove_mac:
1905 mvmvif->deflink.phy_ctxt = NULL;
1906 iwl_mvm_mac_ctxt_remove(mvm, vif);
1907 out_unlock:
1908 mutex_unlock(&mvm->mutex);
1909
1910 return ret;
1911 }
1912
1913 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1914 struct ieee80211_vif *vif)
1915 {
1916 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1917
1918 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1919 /*
1920 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1921 * We assume here that all the packets sent to the OFFCHANNEL
1922 * queue are sent in ROC session.
1923 */
1924 flush_work(&mvm->roc_done_wk);
1925 }
1926
1927 wiphy_delayed_work_cancel(mvm->hw->wiphy,
1928 &mvmvif->prevent_esr_done_wk);
1929
1930 wiphy_delayed_work_cancel(mvm->hw->wiphy,
1931 &mvmvif->mlo_int_scan_wk);
1932
1933 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk);
1934 wiphy_delayed_work_cancel(mvm->hw->wiphy,
1935 &mvmvif->unblock_esr_tmp_non_bss_wk);
1936
1937 cancel_delayed_work_sync(&mvmvif->csa_work);
1938 }
1939
1940 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1941 struct ieee80211_vif *vif)
1942 {
1943 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1944 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1945 struct iwl_probe_resp_data *probe_data;
1946
1947 iwl_mvm_prepare_mac_removal(mvm, vif);
1948
1949 if (!(vif->type == NL80211_IFTYPE_AP ||
1950 vif->type == NL80211_IFTYPE_ADHOC))
1951 iwl_mvm_tcm_rm_vif(mvm, vif);
1952
1953 mutex_lock(&mvm->mutex);
1954
1955 if (vif == mvm->csme_vif) {
1956 iwl_mei_set_netdev(NULL);
1957 mvm->csme_vif = NULL;
1958 }
1959
1960 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,
1961 lockdep_is_held(&mvm->mutex));
1962 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);
1963 if (probe_data)
1964 kfree_rcu(probe_data, rcu_head);
1965
1966 if (mvm->bf_allowed_vif == mvmvif) {
1967 mvm->bf_allowed_vif = NULL;
1968 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1969 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1970 }
1971
1972 if (vif->bss_conf.ftm_responder)
1973 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats));
1974
1975 iwl_mvm_vif_dbgfs_rm_link(mvm, vif);
1976
1977 /*
1978 * For AP/GO interface, the tear down of the resources allocated to the
1979 * interface is be handled as part of the stop_ap flow.
1980 */
1981 if (vif->type == NL80211_IFTYPE_AP ||
1982 vif->type == NL80211_IFTYPE_ADHOC) {
1983 #ifdef CONFIG_NL80211_TESTMODE
1984 if (vif == mvm->noa_vif) {
1985 mvm->noa_vif = NULL;
1986 mvm->noa_duration = 0;
1987 }
1988 #endif
1989 goto out;
1990 }
1991
1992 iwl_mvm_power_update_mac(mvm);
1993
1994 /* Before the interface removal, mac80211 would cancel the ROC, and the
1995 * ROC worker would be scheduled if needed. The worker would be flushed
1996 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no
1997 * binding etc. so nothing needs to be done here.
1998 */
1999 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2000 if (mvmvif->deflink.phy_ctxt) {
2001 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);
2002 mvmvif->deflink.phy_ctxt = NULL;
2003 }
2004 mvm->p2p_device_vif = NULL;
2005 }
2006
2007 iwl_mvm_mac_ctxt_remove(mvm, vif);
2008
2009 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL);
2010
2011 if (vif->type == NL80211_IFTYPE_MONITOR)
2012 mvm->monitor_on = false;
2013
2014 out:
2015 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf);
2016 if (vif->type == NL80211_IFTYPE_AP ||
2017 vif->type == NL80211_IFTYPE_ADHOC) {
2018 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta);
2019 iwl_mvm_dealloc_bcast_sta(mvm, vif);
2020 }
2021
2022 mutex_unlock(&mvm->mutex);
2023 }
2024
2025 struct iwl_mvm_mc_iter_data {
2026 struct iwl_mvm *mvm;
2027 int port_id;
2028 };
2029
2030 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
2031 struct ieee80211_vif *vif)
2032 {
2033 struct iwl_mvm_mc_iter_data *data = _data;
2034 struct iwl_mvm *mvm = data->mvm;
2035 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
2036 struct iwl_host_cmd hcmd = {
2037 .id = MCAST_FILTER_CMD,
2038 .flags = CMD_ASYNC,
2039 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
2040 };
2041 int ret, len;
2042
2043 /* if we don't have free ports, mcast frames will be dropped */
2044 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
2045 return;
2046
2047 if (vif->type != NL80211_IFTYPE_STATION ||
2048 !vif->cfg.assoc)
2049 return;
2050
2051 cmd->port_id = data->port_id++;
2052 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
2053 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
2054
2055 hcmd.len[0] = len;
2056 hcmd.data[0] = cmd;
2057
2058 ret = iwl_mvm_send_cmd(mvm, &hcmd);
2059 if (ret)
2060 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
2061 }
2062
2063 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
2064 {
2065 struct iwl_mvm_mc_iter_data iter_data = {
2066 .mvm = mvm,
2067 };
2068 int ret;
2069
2070 lockdep_assert_held(&mvm->mutex);
2071
2072 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
2073 return;
2074
2075 ieee80211_iterate_active_interfaces_atomic(
2076 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2077 iwl_mvm_mc_iface_iterator, &iter_data);
2078
2079 /*
2080 * Send a (synchronous) ech command so that we wait for the
2081 * multiple asynchronous MCAST_FILTER_CMD commands sent by
2082 * the interface iterator. Otherwise, we might get here over
2083 * and over again (by userspace just sending a lot of these)
2084 * and the CPU can send them faster than the firmware can
2085 * process them.
2086 * Note that the CPU is still faster - but with this we'll
2087 * actually send fewer commands overall because the CPU will
2088 * not schedule the work in mac80211 as frequently if it's
2089 * still running when rescheduled (possibly multiple times).
2090 */
2091 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
2092 if (ret)
2093 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n");
2094 }
2095
2096 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
2097 struct netdev_hw_addr_list *mc_list)
2098 {
2099 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2100 struct iwl_mcast_filter_cmd *cmd;
2101 struct netdev_hw_addr *addr;
2102 int addr_count;
2103 bool pass_all;
2104 int len;
2105
2106 addr_count = netdev_hw_addr_list_count(mc_list);
2107 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
2108 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
2109 if (pass_all)
2110 addr_count = 0;
2111
2112 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
2113 cmd = kzalloc(len, GFP_ATOMIC);
2114 if (!cmd)
2115 return 0;
2116
2117 if (pass_all) {
2118 cmd->pass_all = 1;
2119 return (u64)(unsigned long)cmd;
2120 }
2121
2122 netdev_hw_addr_list_for_each(addr, mc_list) {
2123 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
2124 cmd->count, addr->addr);
2125 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
2126 addr->addr, ETH_ALEN);
2127 cmd->count++;
2128 }
2129
2130 return (u64)(unsigned long)cmd;
2131 }
2132
2133 void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
2134 unsigned int changed_flags,
2135 unsigned int *total_flags, u64 multicast)
2136 {
2137 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2138 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
2139
2140 guard(mvm)(mvm);
2141
2142 /* replace previous configuration */
2143 kfree(mvm->mcast_filter_cmd);
2144 mvm->mcast_filter_cmd = cmd;
2145
2146 if (!cmd)
2147 goto out;
2148
2149 if (changed_flags & FIF_ALLMULTI)
2150 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
2151
2152 if (cmd->pass_all)
2153 cmd->count = 0;
2154
2155 iwl_mvm_recalc_multicast(mvm);
2156 out:
2157 *total_flags = 0;
2158 }
2159
2160 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
2161 struct ieee80211_vif *vif,
2162 unsigned int filter_flags,
2163 unsigned int changed_flags)
2164 {
2165 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2166
2167 /* We support only filter for probe requests */
2168 if (!(changed_flags & FIF_PROBE_REQ))
2169 return;
2170
2171 /* Supported only for p2p client interfaces */
2172 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc ||
2173 !vif->p2p)
2174 return;
2175
2176 guard(mvm)(mvm);
2177 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2178 }
2179
2180 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2181 {
2182 struct iwl_mu_group_mgmt_cmd cmd = {};
2183
2184 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
2185 WLAN_MEMBERSHIP_LEN);
2186 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
2187 WLAN_USER_POSITION_LEN);
2188
2189 return iwl_mvm_send_cmd_pdu(mvm,
2190 WIDE_ID(DATA_PATH_GROUP,
2191 UPDATE_MU_GROUPS_CMD),
2192 0, sizeof(cmd), &cmd);
2193 }
2194
2195 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
2196 struct ieee80211_vif *vif)
2197 {
2198 if (vif->bss_conf.mu_mimo_owner) {
2199 struct iwl_mu_group_mgmt_notif *notif = _data;
2200
2201 /*
2202 * MU-MIMO Group Id action frame is little endian. We treat
2203 * the data received from firmware as if it came from the
2204 * action frame, so no conversion is needed.
2205 */
2206 ieee80211_update_mu_groups(vif, 0,
2207 (u8 *)&notif->membership_status,
2208 (u8 *)&notif->user_position);
2209 }
2210 }
2211
2212 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
2213 struct iwl_rx_cmd_buffer *rxb)
2214 {
2215 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2216 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
2217
2218 ieee80211_iterate_active_interfaces_atomic(
2219 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2220 iwl_mvm_mu_mimo_iface_iterator, notif);
2221 }
2222
2223 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit)
2224 {
2225 u8 byte_num = ppe_pos_bit / 8;
2226 u8 bit_num = ppe_pos_bit % 8;
2227 u8 residue_bits;
2228 u8 res;
2229
2230 if (bit_num <= 5)
2231 return (ppe[byte_num] >> bit_num) &
2232 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1);
2233
2234 /*
2235 * If bit_num > 5, we have to combine bits with next byte.
2236 * Calculate how many bits we need to take from current byte (called
2237 * here "residue_bits"), and add them to bits from next byte.
2238 */
2239
2240 residue_bits = 8 - bit_num;
2241
2242 res = (ppe[byte_num + 1] &
2243 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) <<
2244 residue_bits;
2245 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1);
2246
2247 return res;
2248 }
2249
2250 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm,
2251 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss,
2252 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit,
2253 bool inheritance)
2254 {
2255 int i;
2256
2257 /*
2258 * FW currently supports only nss == MAX_HE_SUPP_NSS
2259 *
2260 * If nss > MAX: we can ignore values we don't support
2261 * If nss < MAX: we can set zeros in other streams
2262 */
2263 if (nss > MAX_HE_SUPP_NSS) {
2264 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,
2265 MAX_HE_SUPP_NSS);
2266 nss = MAX_HE_SUPP_NSS;
2267 }
2268
2269 for (i = 0; i < nss; i++) {
2270 u8 ru_index_tmp = ru_index_bitmap << 1;
2271 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE;
2272 u8 bw;
2273
2274 for (bw = 0;
2275 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2276 bw++) {
2277 ru_index_tmp >>= 1;
2278
2279 /*
2280 * According to the 11be spec, if for a specific BW the PPE Thresholds
2281 * isn't present - it should inherit the thresholds from the last
2282 * BW for which we had PPE Thresholds. In 11ax though, we don't have
2283 * this inheritance - continue in this case
2284 */
2285 if (!(ru_index_tmp & 1)) {
2286 if (inheritance)
2287 goto set_thresholds;
2288 else
2289 continue;
2290 }
2291
2292 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
2293 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2294 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
2295 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2296
2297 set_thresholds:
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
2304 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm,
2305 struct ieee80211_link_sta *link_sta,
2306 struct iwl_he_pkt_ext_v2 *pkt_ext,
2307 bool inheritance)
2308 {
2309 u8 nss = (link_sta->he_cap.ppe_thres[0] &
2310 IEEE80211_PPE_THRES_NSS_MASK) + 1;
2311 u8 *ppe = &link_sta->he_cap.ppe_thres[0];
2312 u8 ru_index_bitmap =
2313 u8_get_bits(*ppe,
2314 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
2315 /* Starting after PPE header */
2316 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE;
2317
2318 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit,
2319 inheritance);
2320 }
2321
2322 static int
2323 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext,
2324 u8 nominal_padding)
2325 {
2326 int low_th = -1;
2327 int high_th = -1;
2328 int i;
2329
2330 /* all the macros are the same for EHT and HE */
2331 switch (nominal_padding) {
2332 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US:
2333 low_th = IWL_HE_PKT_EXT_NONE;
2334 high_th = IWL_HE_PKT_EXT_NONE;
2335 break;
2336 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US:
2337 low_th = IWL_HE_PKT_EXT_BPSK;
2338 high_th = IWL_HE_PKT_EXT_NONE;
2339 break;
2340 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US:
2341 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US:
2342 low_th = IWL_HE_PKT_EXT_NONE;
2343 high_th = IWL_HE_PKT_EXT_BPSK;
2344 break;
2345 }
2346
2347 if (low_th < 0 || high_th < 0)
2348 return -EINVAL;
2349
2350 /* Set the PPE thresholds accordingly */
2351 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2352 u8 bw;
2353
2354 for (bw = 0;
2355 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2356 bw++) {
2357 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
2358 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
2359 }
2360 }
2361
2362 return 0;
2363 }
2364
2365 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext,
2366 u8 nominal_padding)
2367 {
2368 int i;
2369
2370 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2371 u8 bw;
2372
2373 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2374 bw++) {
2375 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0];
2376
2377 if (nominal_padding >
2378 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&
2379 qam_th[1] == IWL_HE_PKT_EXT_NONE)
2380 qam_th[1] = IWL_HE_PKT_EXT_4096QAM;
2381 else if (nominal_padding ==
2382 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&
2383 qam_th[0] == IWL_HE_PKT_EXT_NONE &&
2384 qam_th[1] == IWL_HE_PKT_EXT_NONE)
2385 qam_th[0] = IWL_HE_PKT_EXT_4096QAM;
2386 }
2387 }
2388 }
2389
2390 /* Set the pkt_ext field according to PPE Thresholds element */
2391 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm,
2392 struct ieee80211_link_sta *link_sta,
2393 struct iwl_he_pkt_ext_v2 *pkt_ext)
2394 {
2395 u8 nominal_padding;
2396 int i, ret = 0;
2397
2398 if (WARN_ON(!link_sta))
2399 return -EINVAL;
2400
2401 /* Initialize the PPE thresholds to "None" (7), as described in Table
2402 * 9-262ac of 80211.ax/D3.0.
2403 */
2404 memset(pkt_ext, IWL_HE_PKT_EXT_NONE,
2405 sizeof(struct iwl_he_pkt_ext_v2));
2406
2407 if (link_sta->eht_cap.has_eht) {
2408 nominal_padding =
2409 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5],
2410 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK);
2411
2412 /* If PPE Thresholds exists, parse them into a FW-familiar
2413 * format.
2414 */
2415 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] &
2416 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
2417 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] &
2418 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1;
2419 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0];
2420 u8 ru_index_bitmap =
2421 u16_get_bits(*ppe,
2422 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);
2423 /* Starting after PPE header */
2424 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;
2425
2426 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap,
2427 ppe, ppe_pos_bit, true);
2428 /* EHT PPE Thresholds doesn't exist - set the API according to
2429 * HE PPE Tresholds
2430 */
2431 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &
2432 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2433 /* Even though HE Capabilities IE doesn't contain PPE
2434 * Thresholds for BW 320Mhz, thresholds for this BW will
2435 * be filled in with the same values as 160Mhz, due to
2436 * the inheritance, as required.
2437 */
2438 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,
2439 true);
2440
2441 /* According to the requirements, for MCSs 12-13 the
2442 * maximum value between HE PPE Threshold and Common
2443 * Nominal Packet Padding needs to be taken
2444 */
2445 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding);
2446
2447 /* if PPE Thresholds doesn't present in both EHT IE and HE IE -
2448 * take the Thresholds from Common Nominal Packet Padding field
2449 */
2450 } else {
2451 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,
2452 nominal_padding);
2453 }
2454 } else if (link_sta->he_cap.has_he) {
2455 /* If PPE Thresholds exist, parse them into a FW-familiar format. */
2456 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &
2457 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2458 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,
2459 false);
2460 /* PPE Thresholds doesn't exist - set the API PPE values
2461 * according to Common Nominal Packet Padding field.
2462 */
2463 } else {
2464 nominal_padding =
2465 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9],
2466 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK);
2467 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED)
2468 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,
2469 nominal_padding);
2470 }
2471 }
2472
2473 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2474 int bw;
2475
2476 for (bw = 0;
2477 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]);
2478 bw++) {
2479 u8 *qam_th =
2480 &pkt_ext->pkt_ext_qam_th[i][bw][0];
2481
2482 IWL_DEBUG_HT(mvm,
2483 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n",
2484 i, bw, qam_th[0], qam_th[1]);
2485 }
2486 }
2487 return ret;
2488 }
2489
2490 /*
2491 * This function sets the MU EDCA parameters ans returns whether MU EDCA
2492 * is enabled or not
2493 */
2494 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm,
2495 const struct iwl_mvm_vif_link_info *link_info,
2496 struct iwl_he_backoff_conf *trig_based_txf)
2497 {
2498 int i;
2499 /* Mark MU EDCA as enabled, unless none detected on some AC */
2500 bool mu_edca_enabled = true;
2501
2502 for (i = 0; i < IEEE80211_NUM_ACS; i++) {
2503 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca =
2504 &link_info->queue_params[i].mu_edca_param_rec;
2505 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i);
2506
2507 if (!link_info->queue_params[i].mu_edca) {
2508 mu_edca_enabled = false;
2509 break;
2510 }
2511
2512 trig_based_txf[ac].cwmin =
2513 cpu_to_le16(mu_edca->ecw_min_max & 0xf);
2514 trig_based_txf[ac].cwmax =
2515 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4);
2516 trig_based_txf[ac].aifsn =
2517 cpu_to_le16(mu_edca->aifsn & 0xf);
2518 trig_based_txf[ac].mu_time =
2519 cpu_to_le16(mu_edca->mu_edca_timer);
2520 }
2521
2522 return mu_edca_enabled;
2523 }
2524
2525 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2526 {
2527 const struct ieee80211_supported_band *sband;
2528 const struct ieee80211_sta_he_cap *own_he_cap = NULL;
2529
2530 /* This capability is the same for all bands,
2531 * so take it from one of them.
2532 */
2533 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
2534 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
2535
2536 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] &
2537 IEEE80211_HE_MAC_CAP2_ACK_EN));
2538 }
2539
2540 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta,
2541 struct ieee80211_link_sta *link_sta)
2542 {
2543 u8 *mac_cap_info =
2544 &link_sta->he_cap.he_cap_elem.mac_cap_info[0];
2545 __le32 htc_flags = 0;
2546
2547 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE)
2548 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT);
2549 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) ||
2550 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) {
2551 u8 link_adap =
2552 ((mac_cap_info[2] &
2553 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) +
2554 (mac_cap_info[1] &
2555 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION);
2556
2557 if (link_adap == 2)
2558 htc_flags |=
2559 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED);
2560 else if (link_adap == 3)
2561 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH);
2562 }
2563 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR)
2564 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP);
2565 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL)
2566 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP);
2567 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR)
2568 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP);
2569
2570 return htc_flags;
2571 }
2572
2573 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm,
2574 struct ieee80211_vif *vif, u8 sta_id)
2575 {
2576 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2577 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = {
2578 .sta_id = sta_id,
2579 .tid_limit = IWL_MAX_TID_COUNT,
2580 .bss_color = vif->bss_conf.he_bss_color.color,
2581 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext,
2582 .frame_time_rts_th =
2583 cpu_to_le16(vif->bss_conf.frame_time_rts_th),
2584 };
2585 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {};
2586 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD);
2587 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2);
2588 int size;
2589 struct ieee80211_sta *sta;
2590 u32 flags;
2591 int i;
2592 void *cmd;
2593
2594 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE))
2595 ver = 1;
2596
2597 switch (ver) {
2598 case 1:
2599 /* same layout as v2 except some data at the end */
2600 cmd = &sta_ctxt_cmd_v2;
2601 size = sizeof(struct iwl_he_sta_context_cmd_v1);
2602 break;
2603 case 2:
2604 cmd = &sta_ctxt_cmd_v2;
2605 size = sizeof(struct iwl_he_sta_context_cmd_v2);
2606 break;
2607 case 3:
2608 cmd = &sta_ctxt_cmd;
2609 size = sizeof(struct iwl_he_sta_context_cmd_v3);
2610 break;
2611 default:
2612 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver);
2613 return;
2614 }
2615
2616 rcu_read_lock();
2617
2618 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]);
2619 if (IS_ERR_OR_NULL(sta)) {
2620 rcu_read_unlock();
2621 WARN(1, "Can't find STA to configure HE\n");
2622 return;
2623 }
2624
2625 if (!sta->deflink.he_cap.has_he) {
2626 rcu_read_unlock();
2627 return;
2628 }
2629
2630 flags = 0;
2631
2632 /* Block 26-tone RU OFDMA transmissions */
2633 if (mvmvif->deflink.he_ru_2mhz_block)
2634 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK;
2635
2636 /* HTC flags */
2637 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink);
2638
2639 /* PPE Thresholds */
2640 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext))
2641 flags |= STA_CTXT_HE_PACKET_EXT;
2642
2643 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2644 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP)
2645 flags |= STA_CTXT_HE_32BIT_BA_BITMAP;
2646
2647 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2648 IEEE80211_HE_MAC_CAP2_ACK_EN)
2649 flags |= STA_CTXT_HE_ACK_ENABLED;
2650
2651 rcu_read_unlock();
2652
2653 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink,
2654 &sta_ctxt_cmd.trig_based_txf[0]))
2655 flags |= STA_CTXT_HE_MU_EDCA_CW;
2656
2657 if (vif->bss_conf.uora_exists) {
2658 flags |= STA_CTXT_HE_TRIG_RND_ALLOC;
2659
2660 sta_ctxt_cmd.rand_alloc_ecwmin =
2661 vif->bss_conf.uora_ocw_range & 0x7;
2662 sta_ctxt_cmd.rand_alloc_ecwmax =
2663 (vif->bss_conf.uora_ocw_range >> 3) & 0x7;
2664 }
2665
2666 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif))
2667 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED;
2668
2669 if (vif->bss_conf.nontransmitted) {
2670 flags |= STA_CTXT_HE_REF_BSSID_VALID;
2671 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr,
2672 vif->bss_conf.transmitter_bssid);
2673 sta_ctxt_cmd.max_bssid_indicator =
2674 vif->bss_conf.bssid_indicator;
2675 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index;
2676 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap;
2677 sta_ctxt_cmd.profile_periodicity =
2678 vif->bss_conf.profile_periodicity;
2679 }
2680
2681 sta_ctxt_cmd.flags = cpu_to_le32(flags);
2682
2683 if (ver < 3) {
2684 /* fields before pkt_ext */
2685 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) !=
2686 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext));
2687 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd,
2688 offsetof(typeof(sta_ctxt_cmd), pkt_ext));
2689
2690 /* pkt_ext */
2691 for (i = 0;
2692 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th);
2693 i++) {
2694 u8 bw;
2695
2696 for (bw = 0;
2697 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]);
2698 bw++) {
2699 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) !=
2700 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw]));
2701
2702 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw],
2703 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw],
2704 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]));
2705 }
2706 }
2707
2708 /* fields after pkt_ext */
2709 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) -
2710 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) !=
2711 sizeof(sta_ctxt_cmd_v2) -
2712 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext));
2713 memcpy((u8 *)&sta_ctxt_cmd_v2 +
2714 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext),
2715 (u8 *)&sta_ctxt_cmd +
2716 offsetofend(typeof(sta_ctxt_cmd), pkt_ext),
2717 sizeof(sta_ctxt_cmd) -
2718 offsetofend(typeof(sta_ctxt_cmd), pkt_ext));
2719 sta_ctxt_cmd_v2.reserved3 = 0;
2720 }
2721
2722 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd))
2723 IWL_ERR(mvm, "Failed to config FW to work HE!\n");
2724 }
2725
2726 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2727 u32 duration_override, unsigned int link_id)
2728 {
2729 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2730 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
2731
2732 if (duration_override > duration)
2733 duration = duration_override;
2734
2735 /* Try really hard to protect the session and hear a beacon
2736 * The new session protection command allows us to protect the
2737 * session for a much longer time since the firmware will internally
2738 * create two events: a 300TU one with a very high priority that
2739 * won't be fragmented which should be enough for 99% of the cases,
2740 * and another one (which we configure here to be 900TU long) which
2741 * will have a slightly lower priority, but more importantly, can be
2742 * fragmented so that it'll allow other activities to run.
2743 */
2744 if (fw_has_capa(&mvm->fw->ucode_capa,
2745 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD))
2746 iwl_mvm_schedule_session_protection(mvm, vif, 900,
2747 min_duration, false,
2748 link_id);
2749 else
2750 iwl_mvm_protect_session(mvm, vif, duration,
2751 min_duration, 500, false);
2752 }
2753
2754 /* Handle association common part to MLD and non-MLD modes */
2755 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm,
2756 struct ieee80211_vif *vif,
2757 u64 changes)
2758 {
2759 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2760 int ret;
2761 int link_id;
2762
2763 /* The firmware tracks the MU-MIMO group on its own.
2764 * However, on HW restart we should restore this data.
2765 */
2766 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2767 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) {
2768 ret = iwl_mvm_update_mu_groups(mvm, vif);
2769 if (ret)
2770 IWL_ERR(mvm,
2771 "failed to update VHT MU_MIMO groups\n");
2772 }
2773
2774 iwl_mvm_recalc_multicast(mvm);
2775
2776 /* reset rssi values */
2777 for_each_mvm_vif_valid_link(mvmvif, link_id)
2778 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0;
2779
2780 iwl_mvm_bt_coex_vif_change(mvm);
2781 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2782 IEEE80211_SMPS_AUTOMATIC);
2783 if (fw_has_capa(&mvm->fw->ucode_capa,
2784 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2785 iwl_mvm_config_scan(mvm);
2786 }
2787
2788 /* Execute the common part for MLD and non-MLD modes */
2789 void
2790 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm,
2791 struct ieee80211_vif *vif,
2792 struct ieee80211_bss_conf *link_conf,
2793 u64 changes)
2794 {
2795 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2796 int ret;
2797
2798 if (changes & BSS_CHANGED_BEACON_INFO) {
2799 /* We received a beacon from the associated AP so
2800 * remove the session protection.
2801 */
2802 iwl_mvm_stop_session_protection(mvm, vif);
2803
2804 iwl_mvm_sf_update(mvm, vif, false);
2805 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif));
2806 }
2807
2808 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2809 /* Send power command on every beacon change,
2810 * because we may have not enabled beacon abort yet.
2811 */
2812 BSS_CHANGED_BEACON_INFO)) {
2813 ret = iwl_mvm_power_update_mac(mvm);
2814 if (ret)
2815 IWL_ERR(mvm, "failed to update power mode\n");
2816 }
2817
2818 if (changes & BSS_CHANGED_CQM) {
2819 struct iwl_mvm_vif_link_info *link_info =
2820 mvmvif->link[link_conf->link_id];
2821
2822 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n");
2823 if (link_info)
2824 link_info->bf_data.last_cqm_event = 0;
2825
2826 if (mvmvif->bf_enabled) {
2827 /* FIXME: need to update per link when FW API will
2828 * support it
2829 */
2830 ret = iwl_mvm_enable_beacon_filter(mvm, vif);
2831 if (ret)
2832 IWL_ERR(mvm,
2833 "failed to update CQM thresholds\n");
2834 }
2835 }
2836
2837 if (changes & BSS_CHANGED_BANDWIDTH)
2838 iwl_mvm_update_link_smps(vif, link_conf);
2839
2840 if (changes & BSS_CHANGED_TPE) {
2841 IWL_DEBUG_CALIB(mvm, "Changing TPE\n");
2842 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif,
2843 link_conf,
2844 false);
2845 }
2846 }
2847
2848 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2849 struct ieee80211_vif *vif,
2850 struct ieee80211_bss_conf *bss_conf,
2851 u64 changes)
2852 {
2853 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2854 int ret;
2855 int i;
2856
2857 /*
2858 * Re-calculate the tsf id, as the leader-follower relations depend
2859 * on the beacon interval, which was not known when the station
2860 * interface was added.
2861 */
2862 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) {
2863 if ((vif->bss_conf.he_support &&
2864 !iwlwifi_mod_params.disable_11ax))
2865 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);
2866
2867 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2868 }
2869
2870 /* Update MU EDCA params */
2871 if (changes & BSS_CHANGED_QOS && mvmvif->associated &&
2872 vif->cfg.assoc &&
2873 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax))
2874 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);
2875
2876 /*
2877 * If we're not associated yet, take the (new) BSSID before associating
2878 * so the firmware knows. If we're already associated, then use the old
2879 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2880 * branch for disassociation below.
2881 */
2882 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2883 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);
2884
2885 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid);
2886 if (ret)
2887 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2888
2889 /* after sending it once, adopt mac80211 data */
2890 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);
2891 mvmvif->associated = vif->cfg.assoc;
2892
2893 if (changes & BSS_CHANGED_ASSOC) {
2894 if (vif->cfg.assoc) {
2895 mvmvif->session_prot_connection_loss = false;
2896
2897 /* clear statistics to get clean beacon counter */
2898 iwl_mvm_request_statistics(mvm, true);
2899 for_each_mvm_vif_valid_link(mvmvif, i)
2900 memset(&mvmvif->link[i]->beacon_stats, 0,
2901 sizeof(mvmvif->link[i]->beacon_stats));
2902
2903 /* add quota for this interface */
2904 ret = iwl_mvm_update_quotas(mvm, true, NULL);
2905 if (ret) {
2906 IWL_ERR(mvm, "failed to update quotas\n");
2907 return;
2908 }
2909
2910 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2911 &mvm->status) &&
2912 !fw_has_capa(&mvm->fw->ucode_capa,
2913 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {
2914 /*
2915 * If we're restarting then the firmware will
2916 * obviously have lost synchronisation with
2917 * the AP. It will attempt to synchronise by
2918 * itself, but we can make it more reliable by
2919 * scheduling a session protection time event.
2920 *
2921 * The firmware needs to receive a beacon to
2922 * catch up with synchronisation, use 110% of
2923 * the beacon interval.
2924 *
2925 * Set a large maximum delay to allow for more
2926 * than a single interface.
2927 *
2928 * For new firmware versions, rely on the
2929 * firmware. This is relevant for DCM scenarios
2930 * only anyway.
2931 */
2932 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2933 iwl_mvm_protect_session(mvm, vif, dur, dur,
2934 5 * dur, false);
2935 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2936 &mvm->status) &&
2937 !vif->bss_conf.dtim_period) {
2938 /*
2939 * If we're not restarting and still haven't
2940 * heard a beacon (dtim period unknown) then
2941 * make sure we still have enough minimum time
2942 * remaining in the time event, since the auth
2943 * might actually have taken quite a while
2944 * (especially for SAE) and so the remaining
2945 * time could be small without us having heard
2946 * a beacon yet.
2947 */
2948 iwl_mvm_protect_assoc(mvm, vif, 0, 0);
2949 }
2950
2951 iwl_mvm_sf_update(mvm, vif, false);
2952 iwl_mvm_power_vif_assoc(mvm, vif);
2953 if (vif->p2p) {
2954 iwl_mvm_update_smps(mvm, vif,
2955 IWL_MVM_SMPS_REQ_PROT,
2956 IEEE80211_SMPS_DYNAMIC, 0);
2957 }
2958 } else if (mvmvif->deflink.ap_sta_id != IWL_INVALID_STA) {
2959 iwl_mvm_mei_host_disassociated(mvm);
2960 /*
2961 * If update fails - SF might be running in associated
2962 * mode while disassociated - which is forbidden.
2963 */
2964 ret = iwl_mvm_sf_update(mvm, vif, false);
2965 WARN_ONCE(ret &&
2966 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
2967 &mvm->status),
2968 "Failed to update SF upon disassociation\n");
2969
2970 /*
2971 * If we get an assert during the connection (after the
2972 * station has been added, but before the vif is set
2973 * to associated), mac80211 will re-add the station and
2974 * then configure the vif. Since the vif is not
2975 * associated, we would remove the station here and
2976 * this would fail the recovery.
2977 */
2978 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2979 &mvm->status)) {
2980 /* first remove remaining keys */
2981 iwl_mvm_sec_key_remove_ap(mvm, vif,
2982 &mvmvif->deflink, 0);
2983
2984 /*
2985 * Remove AP station now that
2986 * the MAC is unassoc
2987 */
2988 ret = iwl_mvm_rm_sta_id(mvm, vif,
2989 mvmvif->deflink.ap_sta_id);
2990 if (ret)
2991 IWL_ERR(mvm,
2992 "failed to remove AP station\n");
2993
2994 mvmvif->deflink.ap_sta_id = IWL_INVALID_STA;
2995 }
2996
2997 /* remove quota for this interface */
2998 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2999 if (ret)
3000 IWL_ERR(mvm, "failed to update quotas\n");
3001
3002 /* this will take the cleared BSSID from bss_conf */
3003 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3004 if (ret)
3005 IWL_ERR(mvm,
3006 "failed to update MAC %pM (clear after unassoc)\n",
3007 vif->addr);
3008 }
3009
3010 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes);
3011 }
3012
3013 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf,
3014 changes);
3015 }
3016
3017 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw,
3018 struct ieee80211_vif *vif,
3019 int *ret)
3020 {
3021 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3022 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3023 int i;
3024
3025 lockdep_assert_held(&mvm->mutex);
3026
3027 mvmvif->ap_assoc_sta_count = 0;
3028
3029 /* must be set before quota calculations */
3030 mvmvif->ap_ibss_active = true;
3031
3032 /* send all the early keys to the device now */
3033 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
3034 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i];
3035
3036 if (!key)
3037 continue;
3038
3039 mvmvif->ap_early_keys[i] = NULL;
3040
3041 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key);
3042 if (*ret)
3043 return true;
3044 }
3045
3046 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
3047 iwl_mvm_vif_set_low_latency(mvmvif, true,
3048 LOW_LATENCY_VIF_TYPE);
3049 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);
3050 }
3051
3052 /* power updated needs to be done before quotas */
3053 iwl_mvm_power_update_mac(mvm);
3054
3055 return false;
3056 }
3057
3058 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
3059 struct ieee80211_vif *vif,
3060 struct ieee80211_bss_conf *link_conf)
3061 {
3062 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3063 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3064 int ret;
3065
3066 mutex_lock(&mvm->mutex);
3067
3068 /*
3069 * Re-calculate the tsf id, as the leader-follower relations depend on
3070 * the beacon interval, which was not known when the AP interface
3071 * was added.
3072 */
3073 if (vif->type == NL80211_IFTYPE_AP)
3074 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
3075
3076 /* For older devices need to send beacon template before adding mac
3077 * context. For the newer, the beacon is a resource that belongs to a
3078 * MAC, so need to send beacon template after adding the mac.
3079 */
3080 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) {
3081 /* Add the mac context */
3082 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
3083 if (ret)
3084 goto out_unlock;
3085
3086 /* Send the beacon template */
3087 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
3088 if (ret)
3089 goto out_unlock;
3090 } else {
3091 /* Send the beacon template */
3092 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
3093 if (ret)
3094 goto out_unlock;
3095
3096 /* Add the mac context */
3097 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
3098 if (ret)
3099 goto out_unlock;
3100 }
3101
3102 /* Perform the binding */
3103 ret = iwl_mvm_binding_add_vif(mvm, vif);
3104 if (ret)
3105 goto out_remove;
3106
3107 /*
3108 * This is not very nice, but the simplest:
3109 * For older FWs adding the mcast sta before the bcast station may
3110 * cause assert 0x2b00.
3111 * This is fixed in later FW so make the order of removal depend on
3112 * the TLV
3113 */
3114 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
3115 ret = iwl_mvm_add_mcast_sta(mvm, vif);
3116 if (ret)
3117 goto out_unbind;
3118 /*
3119 * Send the bcast station. At this stage the TBTT and DTIM time
3120 * events are added and applied to the scheduler
3121 */
3122 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
3123 if (ret) {
3124 iwl_mvm_rm_mcast_sta(mvm, vif);
3125 goto out_unbind;
3126 }
3127 } else {
3128 /*
3129 * Send the bcast station. At this stage the TBTT and DTIM time
3130 * events are added and applied to the scheduler
3131 */
3132 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
3133 if (ret)
3134 goto out_unbind;
3135 ret = iwl_mvm_add_mcast_sta(mvm, vif);
3136 if (ret) {
3137 iwl_mvm_send_rm_bcast_sta(mvm, vif);
3138 goto out_unbind;
3139 }
3140 }
3141
3142 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret))
3143 goto out_failed;
3144
3145 ret = iwl_mvm_update_quotas(mvm, false, NULL);
3146 if (ret)
3147 goto out_failed;
3148
3149 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
3150 if (vif->p2p && mvm->p2p_device_vif)
3151 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
3152
3153 iwl_mvm_bt_coex_vif_change(mvm);
3154
3155 /* we don't support TDLS during DCM */
3156 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3157 iwl_mvm_teardown_tdls_peers(mvm);
3158
3159 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf);
3160
3161 goto out_unlock;
3162
3163 out_failed:
3164 iwl_mvm_power_update_mac(mvm);
3165 mvmvif->ap_ibss_active = false;
3166 iwl_mvm_send_rm_bcast_sta(mvm, vif);
3167 iwl_mvm_rm_mcast_sta(mvm, vif);
3168 out_unbind:
3169 iwl_mvm_binding_remove_vif(mvm, vif);
3170 out_remove:
3171 iwl_mvm_mac_ctxt_remove(mvm, vif);
3172 out_unlock:
3173 mutex_unlock(&mvm->mutex);
3174 return ret;
3175 }
3176
3177 static int iwl_mvm_start_ap(struct ieee80211_hw *hw,
3178 struct ieee80211_vif *vif,
3179 struct ieee80211_bss_conf *link_conf)
3180 {
3181 return iwl_mvm_start_ap_ibss(hw, vif, link_conf);
3182 }
3183
3184 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw,
3185 struct ieee80211_vif *vif)
3186 {
3187 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf);
3188 }
3189
3190 /* Common part for MLD and non-MLD ops */
3191 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm,
3192 struct ieee80211_vif *vif)
3193 {
3194 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3195
3196 lockdep_assert_held(&mvm->mutex);
3197
3198 iwl_mvm_prepare_mac_removal(mvm, vif);
3199
3200 /* Handle AP stop while in CSA */
3201 if (rcu_access_pointer(mvm->csa_vif) == vif) {
3202 iwl_mvm_remove_time_event(mvm, mvmvif,
3203 &mvmvif->time_event_data);
3204 RCU_INIT_POINTER(mvm->csa_vif, NULL);
3205 mvmvif->csa_countdown = false;
3206 }
3207
3208 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
3209 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
3210 mvm->csa_tx_block_bcn_timeout = 0;
3211 }
3212
3213 mvmvif->ap_ibss_active = false;
3214 mvm->ap_last_beacon_gp2 = 0;
3215
3216 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
3217 iwl_mvm_vif_set_low_latency(mvmvif, false,
3218 LOW_LATENCY_VIF_TYPE);
3219 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id);
3220 }
3221
3222 iwl_mvm_bt_coex_vif_change(mvm);
3223 }
3224
3225 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
3226 struct ieee80211_vif *vif,
3227 struct ieee80211_bss_conf *link_conf)
3228 {
3229 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3230
3231 guard(mvm)(mvm);
3232
3233 iwl_mvm_stop_ap_ibss_common(mvm, vif);
3234
3235 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
3236 if (vif->p2p && mvm->p2p_device_vif)
3237 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
3238
3239 iwl_mvm_update_quotas(mvm, false, NULL);
3240
3241 iwl_mvm_ftm_responder_clear(mvm, vif);
3242
3243 /*
3244 * This is not very nice, but the simplest:
3245 * For older FWs removing the mcast sta before the bcast station may
3246 * cause assert 0x2b00.
3247 * This is fixed in later FW (which will stop beaconing when removing
3248 * bcast station).
3249 * So make the order of removal depend on the TLV
3250 */
3251 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
3252 iwl_mvm_rm_mcast_sta(mvm, vif);
3253 iwl_mvm_send_rm_bcast_sta(mvm, vif);
3254 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
3255 iwl_mvm_rm_mcast_sta(mvm, vif);
3256 iwl_mvm_binding_remove_vif(mvm, vif);
3257
3258 iwl_mvm_power_update_mac(mvm);
3259
3260 iwl_mvm_mac_ctxt_remove(mvm, vif);
3261 }
3262
3263 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw,
3264 struct ieee80211_vif *vif,
3265 struct ieee80211_bss_conf *link_conf)
3266 {
3267 iwl_mvm_stop_ap_ibss(hw, vif, link_conf);
3268 }
3269
3270 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw,
3271 struct ieee80211_vif *vif)
3272 {
3273 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf);
3274 }
3275
3276 static void
3277 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
3278 struct ieee80211_vif *vif,
3279 struct ieee80211_bss_conf *bss_conf,
3280 u64 changes)
3281 {
3282 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3283
3284 /* Changes will be applied when the AP/IBSS is started */
3285 if (!mvmvif->ap_ibss_active)
3286 return;
3287
3288 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
3289 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3290 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
3291 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
3292
3293 /* Need to send a new beacon template to the FW */
3294 if (changes & BSS_CHANGED_BEACON &&
3295 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf))
3296 IWL_WARN(mvm, "Failed updating beacon data\n");
3297
3298 if (changes & BSS_CHANGED_FTM_RESPONDER) {
3299 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf);
3300
3301 if (ret)
3302 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n",
3303 ret);
3304 }
3305
3306 }
3307
3308 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
3309 struct ieee80211_vif *vif,
3310 struct ieee80211_bss_conf *bss_conf,
3311 u64 changes)
3312 {
3313 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3314
3315 guard(mvm)(mvm);
3316
3317 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle)
3318 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
3319
3320 switch (vif->type) {
3321 case NL80211_IFTYPE_STATION:
3322 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
3323 break;
3324 case NL80211_IFTYPE_AP:
3325 case NL80211_IFTYPE_ADHOC:
3326 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
3327 break;
3328 case NL80211_IFTYPE_MONITOR:
3329 if (changes & BSS_CHANGED_MU_GROUPS)
3330 iwl_mvm_update_mu_groups(mvm, vif);
3331 break;
3332 default:
3333 /* shouldn't happen */
3334 WARN_ON_ONCE(1);
3335 }
3336
3337 if (changes & BSS_CHANGED_TXPOWER) {
3338 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n",
3339 bss_conf->txpower);
3340 iwl_mvm_set_tx_power(mvm, bss_conf, bss_conf->txpower);
3341 }
3342 }
3343
3344 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3345 struct ieee80211_scan_request *hw_req)
3346 {
3347 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3348
3349 if (hw_req->req.n_channels == 0 ||
3350 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
3351 return -EINVAL;
3352
3353 guard(mvm)(mvm);
3354 return iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
3355 }
3356
3357 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
3358 struct ieee80211_vif *vif)
3359 {
3360 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3361
3362 guard(mvm)(mvm);
3363
3364 /* Due to a race condition, it's possible that mac80211 asks
3365 * us to stop a hw_scan when it's already stopped. This can
3366 * happen, for instance, if we stopped the scan ourselves,
3367 * called ieee80211_scan_completed() and the userspace called
3368 * cancel scan scan before ieee80211_scan_work() could run.
3369 * To handle that, simply return if the scan is not running.
3370 */
3371 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
3372 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
3373 }
3374
3375 void
3376 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3377 struct ieee80211_sta *sta, u16 tids,
3378 int num_frames,
3379 enum ieee80211_frame_release_type reason,
3380 bool more_data)
3381 {
3382 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3383
3384 /* Called when we need to transmit (a) frame(s) from mac80211 */
3385
3386 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
3387 tids, more_data, false);
3388 }
3389
3390 void
3391 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
3392 struct ieee80211_sta *sta, u16 tids,
3393 int num_frames,
3394 enum ieee80211_frame_release_type reason,
3395 bool more_data)
3396 {
3397 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3398
3399 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
3400
3401 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
3402 tids, more_data, true);
3403 }
3404
3405 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
3406 enum sta_notify_cmd cmd,
3407 struct ieee80211_sta *sta)
3408 {
3409 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3410 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3411 unsigned long txqs = 0, tids = 0;
3412 int tid;
3413
3414 /*
3415 * If we have TVQM then we get too high queue numbers - luckily
3416 * we really shouldn't get here with that because such hardware
3417 * should have firmware supporting buffer station offload.
3418 */
3419 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
3420 return;
3421
3422 spin_lock_bh(&mvmsta->lock);
3423 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) {
3424 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
3425
3426 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
3427 continue;
3428
3429 __set_bit(tid_data->txq_id, &txqs);
3430
3431 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
3432 continue;
3433
3434 __set_bit(tid, &tids);
3435 }
3436
3437 switch (cmd) {
3438 case STA_NOTIFY_SLEEP:
3439 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3440 ieee80211_sta_set_buffered(sta, tid, true);
3441
3442 if (txqs)
3443 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
3444 /*
3445 * The fw updates the STA to be asleep. Tx packets on the Tx
3446 * queues to this station will not be transmitted. The fw will
3447 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
3448 */
3449 break;
3450 case STA_NOTIFY_AWAKE:
3451 if (WARN_ON(mvmsta->deflink.sta_id == IWL_INVALID_STA))
3452 break;
3453
3454 if (txqs)
3455 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
3456 iwl_mvm_sta_modify_ps_wake(mvm, sta);
3457 break;
3458 default:
3459 break;
3460 }
3461 spin_unlock_bh(&mvmsta->lock);
3462 }
3463
3464 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3465 enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
3466 {
3467 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
3468 }
3469
3470 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
3471 {
3472 struct iwl_rx_packet *pkt = rxb_addr(rxb);
3473 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
3474 struct ieee80211_sta *sta;
3475 struct iwl_mvm_sta *mvmsta;
3476 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
3477
3478 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations))
3479 return;
3480
3481 rcu_read_lock();
3482 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
3483 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
3484 rcu_read_unlock();
3485 return;
3486 }
3487
3488 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3489
3490 if (!mvmsta->vif ||
3491 mvmsta->vif->type != NL80211_IFTYPE_AP) {
3492 rcu_read_unlock();
3493 return;
3494 }
3495
3496 if (mvmsta->sleeping != sleeping) {
3497 mvmsta->sleeping = sleeping;
3498 __iwl_mvm_mac_sta_notify(mvm->hw,
3499 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
3500 sta);
3501 ieee80211_sta_ps_transition(sta, sleeping);
3502 }
3503
3504 if (sleeping) {
3505 switch (notif->type) {
3506 case IWL_MVM_PM_EVENT_AWAKE:
3507 case IWL_MVM_PM_EVENT_ASLEEP:
3508 break;
3509 case IWL_MVM_PM_EVENT_UAPSD:
3510 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
3511 break;
3512 case IWL_MVM_PM_EVENT_PS_POLL:
3513 ieee80211_sta_pspoll(sta);
3514 break;
3515 default:
3516 break;
3517 }
3518 }
3519
3520 rcu_read_unlock();
3521 }
3522
3523 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
3524 struct ieee80211_vif *vif,
3525 struct ieee80211_sta *sta)
3526 {
3527 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3528 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3529 unsigned int link_id;
3530
3531 lockdep_assert_wiphy(mvm->hw->wiphy);
3532
3533 /*
3534 * This is called before mac80211 does RCU synchronisation,
3535 * so here we already invalidate our internal RCU-protected
3536 * station pointer. The rest of the code will thus no longer
3537 * be able to find the station this way, and we don't rely
3538 * on further RCU synchronisation after the sta_state()
3539 * callback deleted the station.
3540 * Since there's mvm->mutex here, no need to have RCU lock for
3541 * mvm_sta->link access.
3542 */
3543 guard(mvm)(mvm);
3544 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) {
3545 struct iwl_mvm_link_sta *link_sta;
3546 u32 sta_id;
3547
3548 if (!mvm_sta->link[link_id])
3549 continue;
3550
3551 link_sta = rcu_dereference_protected(mvm_sta->link[link_id],
3552 lockdep_is_held(&mvm->mutex));
3553 sta_id = link_sta->sta_id;
3554 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) {
3555 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id],
3556 ERR_PTR(-ENOENT));
3557 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL);
3558 }
3559 }
3560 }
3561
3562 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
3563 const u8 *bssid)
3564 {
3565 int i;
3566
3567 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
3568 struct iwl_mvm_tcm_mac *mdata;
3569
3570 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id];
3571 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate);
3572 mdata->opened_rx_ba_sessions = false;
3573 }
3574
3575 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
3576 return;
3577
3578 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
3579 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3580 return;
3581 }
3582
3583 if (!vif->p2p &&
3584 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
3585 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3586 return;
3587 }
3588
3589 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) {
3590 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) {
3591 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3592 return;
3593 }
3594 }
3595
3596 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
3597 }
3598
3599 static void
3600 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
3601 struct ieee80211_vif *vif, u8 *peer_addr,
3602 enum nl80211_tdls_operation action)
3603 {
3604 struct iwl_fw_dbg_trigger_tlv *trig;
3605 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
3606
3607 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
3608 FW_DBG_TRIGGER_TDLS);
3609 if (!trig)
3610 return;
3611
3612 tdls_trig = (void *)trig->data;
3613
3614 if (!(tdls_trig->action_bitmap & BIT(action)))
3615 return;
3616
3617 if (tdls_trig->peer_mode &&
3618 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
3619 return;
3620
3621 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
3622 "TDLS event occurred, peer %pM, action %d",
3623 peer_addr, action);
3624 }
3625
3626 struct iwl_mvm_he_obss_narrow_bw_ru_data {
3627 bool tolerated;
3628 };
3629
3630 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy,
3631 struct cfg80211_bss *bss,
3632 void *_data)
3633 {
3634 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data;
3635 const struct cfg80211_bss_ies *ies;
3636 const struct element *elem;
3637
3638 rcu_read_lock();
3639 ies = rcu_dereference(bss->ies);
3640 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data,
3641 ies->len);
3642
3643 if (!elem || elem->datalen < 10 ||
3644 !(elem->data[10] &
3645 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) {
3646 data->tolerated = false;
3647 }
3648 rcu_read_unlock();
3649 }
3650
3651 static void
3652 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,
3653 struct ieee80211_vif *vif,
3654 unsigned int link_id,
3655 struct ieee80211_bss_conf *link_conf)
3656 {
3657 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3658 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = {
3659 .tolerated = true,
3660 };
3661
3662 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan ||
3663 !mvmvif->link[link_id]))
3664 return;
3665
3666 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) {
3667 mvmvif->link[link_id]->he_ru_2mhz_block = false;
3668 return;
3669 }
3670
3671 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper,
3672 iwl_mvm_check_he_obss_narrow_bw_ru_iter,
3673 &iter_data);
3674
3675 /*
3676 * If there is at least one AP on radar channel that cannot
3677 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU.
3678 */
3679 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated;
3680 }
3681
3682 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm,
3683 struct ieee80211_vif *vif)
3684 {
3685 struct ieee80211_supported_band *sband;
3686 const struct ieee80211_sta_he_cap *he_cap;
3687
3688 if (vif->type != NL80211_IFTYPE_STATION)
3689 return;
3690
3691 if (!mvm->cca_40mhz_workaround)
3692 return;
3693
3694 /* decrement and check that we reached zero */
3695 mvm->cca_40mhz_workaround--;
3696 if (mvm->cca_40mhz_workaround)
3697 return;
3698
3699 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
3700
3701 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
3702
3703 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
3704
3705 if (he_cap) {
3706 /* we know that ours is writable */
3707 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
3708
3709 he->he_cap_elem.phy_cap_info[0] |=
3710 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
3711 }
3712 }
3713
3714 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm,
3715 struct ieee80211_vif *vif,
3716 struct iwl_mvm_sta *mvm_sta)
3717 {
3718 #if IS_ENABLED(CONFIG_IWLMEI)
3719 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3720 struct iwl_mei_conn_info conn_info = {
3721 .ssid_len = vif->cfg.ssid_len,
3722 };
3723
3724 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3725 return;
3726
3727 if (!mvm->mei_registered)
3728 return;
3729
3730 /* FIXME: MEI needs to be updated for MLO */
3731 if (!vif->bss_conf.chanreq.oper.chan)
3732 return;
3733
3734 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value;
3735
3736 switch (mvm_sta->pairwise_cipher) {
3737 case WLAN_CIPHER_SUITE_TKIP:
3738 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP;
3739 break;
3740 case WLAN_CIPHER_SUITE_CCMP:
3741 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP;
3742 break;
3743 case WLAN_CIPHER_SUITE_GCMP:
3744 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP;
3745 break;
3746 case WLAN_CIPHER_SUITE_GCMP_256:
3747 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256;
3748 break;
3749 case 0:
3750 /* open profile */
3751 break;
3752 default:
3753 /* cipher not supported, don't send anything to iwlmei */
3754 return;
3755 }
3756
3757 switch (mvmvif->rekey_data.akm) {
3758 case WLAN_AKM_SUITE_SAE & 0xff:
3759 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE;
3760 break;
3761 case WLAN_AKM_SUITE_PSK & 0xff:
3762 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK;
3763 break;
3764 case WLAN_AKM_SUITE_8021X & 0xff:
3765 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA;
3766 break;
3767 case 0:
3768 /* open profile */
3769 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN;
3770 break;
3771 default:
3772 /* auth method / AKM not supported */
3773 /* TODO: All the FT vesions of these? */
3774 return;
3775 }
3776
3777 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len);
3778 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN);
3779
3780 /* TODO: add support for collocated AP data */
3781 iwl_mei_host_associated(&conn_info, NULL);
3782 #endif
3783 }
3784
3785 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm,
3786 struct ieee80211_vif *vif,
3787 bool force_assoc_off)
3788 {
3789 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL);
3790 }
3791
3792 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
3793 struct ieee80211_vif *vif,
3794 struct ieee80211_sta *sta,
3795 enum ieee80211_sta_state old_state,
3796 enum ieee80211_sta_state new_state)
3797 {
3798 static const struct iwl_mvm_sta_state_ops callbacks = {
3799 .add_sta = iwl_mvm_add_sta,
3800 .update_sta = iwl_mvm_update_sta,
3801 .rm_sta = iwl_mvm_rm_sta,
3802 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper,
3803 };
3804
3805 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state,
3806 &callbacks);
3807 }
3808
3809 /* FIXME: temporary making two assumptions in all sta handling functions:
3810 * (1) when setting sta state, the link exists and protected
3811 * (2) if a link is valid in sta then it's valid in vif (can
3812 * use same index in the link array)
3813 */
3814 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm,
3815 struct ieee80211_vif *vif,
3816 struct ieee80211_sta *sta)
3817 {
3818 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3819 unsigned int link_id;
3820
3821 for_each_mvm_vif_valid_link(mvmvif, link_id) {
3822 struct ieee80211_bss_conf *conf =
3823 link_conf_dereference_check(vif, link_id);
3824 struct ieee80211_link_sta *link_sta =
3825 link_sta_dereference_check(sta, link_id);
3826
3827 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt)
3828 continue;
3829
3830 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta,
3831 mvmvif->link[link_id]->phy_ctxt->channel->band);
3832 }
3833 }
3834
3835 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm,
3836 struct ieee80211_vif *vif,
3837 struct ieee80211_sta *sta)
3838 {
3839 struct ieee80211_link_sta *link_sta;
3840 unsigned int link_id;
3841
3842 /* Beacon interval check - firmware will crash if the beacon
3843 * interval is less than 16. We can't avoid connecting at all,
3844 * so refuse the station state change, this will cause mac80211
3845 * to abandon attempts to connect to this AP, and eventually
3846 * wpa_s will blocklist the AP...
3847 */
3848
3849 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3850 struct ieee80211_bss_conf *link_conf =
3851 link_conf_dereference_protected(vif, link_id);
3852
3853 if (!link_conf)
3854 continue;
3855
3856 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) {
3857 IWL_ERR(mvm,
3858 "Beacon interval %d for AP %pM is too small\n",
3859 link_conf->beacon_int, link_sta->addr);
3860 return false;
3861 }
3862
3863 link_conf->he_support = link_sta->he_cap.has_he;
3864 }
3865
3866 return true;
3867 }
3868
3869 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw,
3870 struct ieee80211_vif *vif,
3871 struct ieee80211_sta *sta,
3872 bool is_sta)
3873 {
3874 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3875 struct ieee80211_link_sta *link_sta;
3876 unsigned int link_id;
3877
3878 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3879 struct ieee80211_bss_conf *link_conf =
3880 link_conf_dereference_protected(vif, link_id);
3881
3882 if (!link_conf || !mvmvif->link[link_id])
3883 continue;
3884
3885 link_conf->he_support = link_sta->he_cap.has_he;
3886
3887 if (is_sta) {
3888 mvmvif->link[link_id]->he_ru_2mhz_block = false;
3889 if (link_sta->he_cap.has_he)
3890 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif,
3891 link_id,
3892 link_conf);
3893 }
3894 }
3895 }
3896
3897 static int
3898 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm,
3899 struct ieee80211_vif *vif,
3900 struct ieee80211_sta *sta,
3901 const struct iwl_mvm_sta_state_ops *callbacks)
3902 {
3903 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3904 struct ieee80211_link_sta *link_sta;
3905 unsigned int i;
3906 int ret;
3907
3908 lockdep_assert_held(&mvm->mutex);
3909
3910 if (vif->type == NL80211_IFTYPE_STATION &&
3911 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta))
3912 return -EINVAL;
3913
3914 if (sta->tdls &&
3915 (vif->p2p ||
3916 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT ||
3917 iwl_mvm_phy_ctx_count(mvm) > 1)) {
3918 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
3919 return -EBUSY;
3920 }
3921
3922 ret = callbacks->add_sta(mvm, vif, sta);
3923 if (sta->tdls && ret == 0) {
3924 iwl_mvm_recalc_tdls_state(mvm, vif, true);
3925 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3926 NL80211_TDLS_SETUP);
3927 }
3928
3929 if (ret)
3930 return ret;
3931
3932 for_each_sta_active_link(vif, sta, link_sta, i)
3933 link_sta->agg.max_rc_amsdu_len = 1;
3934
3935 ieee80211_sta_recalc_aggregates(sta);
3936
3937 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
3938 mvmvif->ap_sta = sta;
3939
3940 /*
3941 * Initialize the rates here already - this really tells
3942 * the firmware only what the supported legacy rates are
3943 * (may be) since it's initialized already from what the
3944 * AP advertised in the beacon/probe response. This will
3945 * allow the firmware to send auth/assoc frames with one
3946 * of the supported rates already, rather than having to
3947 * use a mandatory rate.
3948 * If we're the AP, we'll just assume mandatory rates at
3949 * this point, but we know nothing about the STA anyway.
3950 */
3951 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3952
3953 return 0;
3954 }
3955
3956 static int
3957 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw,
3958 struct iwl_mvm *mvm,
3959 struct ieee80211_vif *vif,
3960 struct ieee80211_sta *sta,
3961 const struct iwl_mvm_sta_state_ops *callbacks)
3962 {
3963 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3964 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3965 struct ieee80211_link_sta *link_sta;
3966 unsigned int link_id;
3967
3968 lockdep_assert_held(&mvm->mutex);
3969
3970 if (vif->type == NL80211_IFTYPE_AP) {
3971 iwl_mvm_vif_set_he_support(hw, vif, sta, false);
3972 mvmvif->ap_assoc_sta_count++;
3973 callbacks->mac_ctxt_changed(mvm, vif, false);
3974
3975 /* since the below is not for MLD API, it's ok to use
3976 * the default bss_conf
3977 */
3978 if (!mvm->mld_api_is_used &&
3979 (vif->bss_conf.he_support &&
3980 !iwlwifi_mod_params.disable_11ax))
3981 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id);
3982 } else if (vif->type == NL80211_IFTYPE_STATION) {
3983 iwl_mvm_vif_set_he_support(hw, vif, sta, true);
3984
3985 callbacks->mac_ctxt_changed(mvm, vif, false);
3986
3987 if (!mvm->mld_api_is_used)
3988 goto out;
3989
3990 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3991 struct ieee80211_bss_conf *link_conf =
3992 link_conf_dereference_protected(vif, link_id);
3993
3994 if (WARN_ON(!link_conf))
3995 return -EINVAL;
3996 if (!mvmvif->link[link_id])
3997 continue;
3998
3999 iwl_mvm_link_changed(mvm, vif, link_conf,
4000 LINK_CONTEXT_MODIFY_ALL &
4001 ~LINK_CONTEXT_MODIFY_ACTIVE,
4002 true);
4003 }
4004 }
4005
4006 out:
4007 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4008
4009 return callbacks->update_sta(mvm, vif, sta);
4010 }
4011
4012 static int
4013 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm,
4014 struct ieee80211_vif *vif,
4015 struct ieee80211_sta *sta,
4016 const struct iwl_mvm_sta_state_ops *callbacks)
4017 {
4018 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4019 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
4020
4021 lockdep_assert_held(&mvm->mutex);
4022
4023 /* we don't support TDLS during DCM */
4024 if (iwl_mvm_phy_ctx_count(mvm) > 1)
4025 iwl_mvm_teardown_tdls_peers(mvm);
4026
4027 if (sta->tdls) {
4028 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
4029 NL80211_TDLS_ENABLE_LINK);
4030 } else {
4031 /* enable beacon filtering */
4032 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif));
4033
4034 mvmvif->authorized = 1;
4035
4036 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
4037 mvmvif->link_selection_res = vif->active_links;
4038 mvmvif->link_selection_primary =
4039 vif->active_links ? __ffs(vif->active_links) : 0;
4040 }
4041
4042 callbacks->mac_ctxt_changed(mvm, vif, false);
4043 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta);
4044
4045 memset(&mvmvif->last_esr_exit, 0,
4046 sizeof(mvmvif->last_esr_exit));
4047
4048 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0);
4049
4050 /* Block until FW notif will arrive */
4051 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, 0);
4052
4053 /* when client is authorized (AP station marked as such),
4054 * try to enable the best link(s).
4055 */
4056 if (vif->type == NL80211_IFTYPE_STATION &&
4057 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
4058 iwl_mvm_select_links(mvm, vif);
4059 }
4060
4061 mvm_sta->authorized = true;
4062
4063 /* MFP is set by default before the station is authorized.
4064 * Clear it here in case it's not used.
4065 */
4066 if (!sta->mfp) {
4067 int ret = callbacks->update_sta(mvm, vif, sta);
4068
4069 if (ret)
4070 return ret;
4071 }
4072
4073 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4074
4075 return 0;
4076 }
4077
4078 static int
4079 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm,
4080 struct ieee80211_vif *vif,
4081 struct ieee80211_sta *sta,
4082 const struct iwl_mvm_sta_state_ops *callbacks)
4083 {
4084 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4085 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4086
4087 lockdep_assert_held(&mvm->mutex);
4088
4089 mvmsta->authorized = false;
4090
4091 /* once we move into assoc state, need to update rate scale to
4092 * disable using wide bandwidth
4093 */
4094 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4095
4096 if (!sta->tdls) {
4097 /* Set this but don't call iwl_mvm_mac_ctxt_changed()
4098 * yet to avoid sending high prio again for a little
4099 * time.
4100 */
4101 mvmvif->authorized = 0;
4102 mvmvif->link_selection_res = 0;
4103
4104 /* disable beacon filtering */
4105 iwl_mvm_disable_beacon_filter(mvm, vif);
4106
4107 wiphy_delayed_work_cancel(mvm->hw->wiphy,
4108 &mvmvif->prevent_esr_done_wk);
4109
4110 wiphy_delayed_work_cancel(mvm->hw->wiphy,
4111 &mvmvif->mlo_int_scan_wk);
4112
4113 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk);
4114 wiphy_delayed_work_cancel(mvm->hw->wiphy,
4115 &mvmvif->unblock_esr_tmp_non_bss_wk);
4116
4117 /* No need for the periodic statistics anymore */
4118 if (ieee80211_vif_is_mld(vif) && mvmvif->esr_active)
4119 iwl_mvm_request_periodic_system_statistics(mvm, false);
4120 }
4121
4122 return 0;
4123 }
4124
4125 /* Common part for MLD and non-MLD modes */
4126 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw,
4127 struct ieee80211_vif *vif,
4128 struct ieee80211_sta *sta,
4129 enum ieee80211_sta_state old_state,
4130 enum ieee80211_sta_state new_state,
4131 const struct iwl_mvm_sta_state_ops *callbacks)
4132 {
4133 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4134 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4135 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
4136 struct ieee80211_link_sta *link_sta;
4137 unsigned int link_id;
4138 int ret;
4139
4140 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
4141 sta->addr, old_state, new_state);
4142
4143 /*
4144 * If we are in a STA removal flow and in DQA mode:
4145 *
4146 * This is after the sync_rcu part, so the queues have already been
4147 * flushed. No more TXs on their way in mac80211's path, and no more in
4148 * the queues.
4149 * Also, we won't be getting any new TX frames for this station.
4150 * What we might have are deferred TX frames that need to be taken care
4151 * of.
4152 *
4153 * Drop any still-queued deferred-frame before removing the STA, and
4154 * make sure the worker is no longer handling frames for this STA.
4155 */
4156 if (old_state == IEEE80211_STA_NONE &&
4157 new_state == IEEE80211_STA_NOTEXIST) {
4158 flush_work(&mvm->add_stream_wk);
4159
4160 /*
4161 * No need to make sure deferred TX indication is off since the
4162 * worker will already remove it if it was on
4163 */
4164
4165 /*
4166 * Additionally, reset the 40 MHz capability if we disconnected
4167 * from the AP now.
4168 */
4169 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif);
4170
4171 /* Also free dup data just in case any assertions below fail */
4172 kfree(mvm_sta->dup_data);
4173 }
4174
4175 mutex_lock(&mvm->mutex);
4176
4177 /* this would be a mac80211 bug ... but don't crash, unless we had a
4178 * firmware crash while we were activating a link, in which case it is
4179 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in
4180 * recovery flow since we spit tons of error messages anyway.
4181 */
4182 for_each_sta_active_link(vif, sta, link_sta, link_id) {
4183 if (WARN_ON_ONCE(!mvmvif->link[link_id] ||
4184 !mvmvif->link[link_id]->phy_ctxt)) {
4185 mutex_unlock(&mvm->mutex);
4186 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
4187 &mvm->status) ? 0 : -EINVAL;
4188 }
4189 }
4190
4191 /* track whether or not the station is associated */
4192 mvm_sta->sta_state = new_state;
4193
4194 if (old_state == IEEE80211_STA_NOTEXIST &&
4195 new_state == IEEE80211_STA_NONE) {
4196 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta,
4197 callbacks);
4198 if (ret < 0)
4199 goto out_unlock;
4200 } else if (old_state == IEEE80211_STA_NONE &&
4201 new_state == IEEE80211_STA_AUTH) {
4202 /*
4203 * EBS may be disabled due to previous failures reported by FW.
4204 * Reset EBS status here assuming environment has been changed.
4205 */
4206 mvm->last_ebs_successful = true;
4207 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
4208 ret = 0;
4209 } else if (old_state == IEEE80211_STA_AUTH &&
4210 new_state == IEEE80211_STA_ASSOC) {
4211 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta,
4212 callbacks);
4213 } else if (old_state == IEEE80211_STA_ASSOC &&
4214 new_state == IEEE80211_STA_AUTHORIZED) {
4215 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta,
4216 callbacks);
4217 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
4218 new_state == IEEE80211_STA_ASSOC) {
4219 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta,
4220 callbacks);
4221 } else if (old_state == IEEE80211_STA_ASSOC &&
4222 new_state == IEEE80211_STA_AUTH) {
4223 if (vif->type == NL80211_IFTYPE_AP) {
4224 mvmvif->ap_assoc_sta_count--;
4225 callbacks->mac_ctxt_changed(mvm, vif, false);
4226 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
4227 iwl_mvm_stop_session_protection(mvm, vif);
4228 ret = 0;
4229 } else if (old_state == IEEE80211_STA_AUTH &&
4230 new_state == IEEE80211_STA_NONE) {
4231 ret = 0;
4232 } else if (old_state == IEEE80211_STA_NONE &&
4233 new_state == IEEE80211_STA_NOTEXIST) {
4234 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) {
4235 iwl_mvm_stop_session_protection(mvm, vif);
4236 mvmvif->ap_sta = NULL;
4237 }
4238 ret = callbacks->rm_sta(mvm, vif, sta);
4239 if (sta->tdls) {
4240 iwl_mvm_recalc_tdls_state(mvm, vif, false);
4241 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
4242 NL80211_TDLS_DISABLE_LINK);
4243 }
4244
4245 if (unlikely(ret &&
4246 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
4247 &mvm->status)))
4248 ret = 0;
4249 } else {
4250 ret = -EIO;
4251 }
4252 out_unlock:
4253 mutex_unlock(&mvm->mutex);
4254
4255 if (sta->tdls && ret == 0) {
4256 if (old_state == IEEE80211_STA_NOTEXIST &&
4257 new_state == IEEE80211_STA_NONE)
4258 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
4259 else if (old_state == IEEE80211_STA_NONE &&
4260 new_state == IEEE80211_STA_NOTEXIST)
4261 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
4262 }
4263
4264 return ret;
4265 }
4266
4267 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
4268 {
4269 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4270
4271 mvm->rts_threshold = value;
4272
4273 return 0;
4274 }
4275
4276 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4277 struct ieee80211_link_sta *link_sta, u32 changed)
4278 {
4279 struct ieee80211_sta *sta = link_sta->sta;
4280 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4281
4282 if (changed & (IEEE80211_RC_BW_CHANGED |
4283 IEEE80211_RC_SUPP_RATES_CHANGED |
4284 IEEE80211_RC_NSS_CHANGED))
4285 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4286
4287 if (vif->type == NL80211_IFTYPE_STATION &&
4288 changed & IEEE80211_RC_NSS_CHANGED)
4289 iwl_mvm_sf_update(mvm, vif, false);
4290 }
4291
4292 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
4293 struct ieee80211_vif *vif,
4294 unsigned int link_id, u16 ac,
4295 const struct ieee80211_tx_queue_params *params)
4296 {
4297 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4298 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4299
4300 mvmvif->deflink.queue_params[ac] = *params;
4301
4302 /*
4303 * No need to update right away, we'll get BSS_CHANGED_QOS
4304 * The exception is P2P_DEVICE interface which needs immediate update.
4305 */
4306 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
4307 guard(mvm)(mvm);
4308 return iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
4309 }
4310 return 0;
4311 }
4312
4313 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
4314 struct ieee80211_vif *vif,
4315 struct ieee80211_prep_tx_info *info)
4316 {
4317 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4318 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4319
4320 if (info->was_assoc && !mvmvif->session_prot_connection_loss)
4321 return;
4322
4323 guard(mvm)(mvm);
4324 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id);
4325 }
4326
4327 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw,
4328 struct ieee80211_vif *vif,
4329 struct ieee80211_prep_tx_info *info)
4330 {
4331 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4332
4333 /* for successful cases (auth/assoc), don't cancel session protection */
4334 if (info->success)
4335 return;
4336
4337 guard(mvm)(mvm);
4338 iwl_mvm_stop_session_protection(mvm, vif);
4339 }
4340
4341 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
4342 struct ieee80211_vif *vif,
4343 struct cfg80211_sched_scan_request *req,
4344 struct ieee80211_scan_ies *ies)
4345 {
4346 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4347
4348 guard(mvm)(mvm);
4349
4350 if (!vif->cfg.idle)
4351 return -EBUSY;
4352
4353 return iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
4354 }
4355
4356 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
4357 struct ieee80211_vif *vif)
4358 {
4359 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4360 int ret;
4361
4362 mutex_lock(&mvm->mutex);
4363
4364 /* Due to a race condition, it's possible that mac80211 asks
4365 * us to stop a sched_scan when it's already stopped. This
4366 * can happen, for instance, if we stopped the scan ourselves,
4367 * called ieee80211_sched_scan_stopped() and the userspace called
4368 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
4369 * could run. To handle this, simply return if the scan is
4370 * not running.
4371 */
4372 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
4373 mutex_unlock(&mvm->mutex);
4374 return 0;
4375 }
4376
4377 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
4378 mutex_unlock(&mvm->mutex);
4379 iwl_mvm_wait_for_async_handlers(mvm);
4380
4381 return ret;
4382 }
4383
4384 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
4385 enum set_key_cmd cmd,
4386 struct ieee80211_vif *vif,
4387 struct ieee80211_sta *sta,
4388 struct ieee80211_key_conf *key)
4389 {
4390 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4391 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4392 struct iwl_mvm_sta *mvmsta = NULL;
4393 struct iwl_mvm_key_pn *ptk_pn = NULL;
4394 int keyidx = key->keyidx;
4395 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);
4396 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);
4397 int ret, i;
4398 u8 key_offset;
4399
4400 if (sta)
4401 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4402
4403 switch (key->cipher) {
4404 case WLAN_CIPHER_SUITE_TKIP:
4405 if (!mvm->trans->trans_cfg->gen2) {
4406 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
4407 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
4408 } else if (vif->type == NL80211_IFTYPE_STATION) {
4409 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE;
4410 } else {
4411 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n");
4412 return -EOPNOTSUPP;
4413 }
4414 break;
4415 case WLAN_CIPHER_SUITE_CCMP:
4416 case WLAN_CIPHER_SUITE_GCMP:
4417 case WLAN_CIPHER_SUITE_GCMP_256:
4418 if (!iwl_mvm_has_new_tx_api(mvm))
4419 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
4420 break;
4421 case WLAN_CIPHER_SUITE_AES_CMAC:
4422 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
4423 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
4424 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
4425 break;
4426 case WLAN_CIPHER_SUITE_WEP40:
4427 case WLAN_CIPHER_SUITE_WEP104:
4428 if (vif->type == NL80211_IFTYPE_STATION)
4429 break;
4430 if (iwl_mvm_has_new_tx_api(mvm))
4431 return -EOPNOTSUPP;
4432 /* support HW crypto on TX */
4433 return 0;
4434 default:
4435 return -EOPNOTSUPP;
4436 }
4437
4438 switch (cmd) {
4439 case SET_KEY:
4440 if (vif->type == NL80211_IFTYPE_STATION &&
4441 (keyidx == 6 || keyidx == 7))
4442 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6],
4443 key);
4444
4445 if ((vif->type == NL80211_IFTYPE_ADHOC ||
4446 vif->type == NL80211_IFTYPE_AP) && !sta) {
4447 /*
4448 * GTK on AP interface is a TX-only key, return 0;
4449 * on IBSS they're per-station and because we're lazy
4450 * we don't support them for RX, so do the same.
4451 * CMAC/GMAC in AP/IBSS modes must be done in software
4452 * on older NICs.
4453 *
4454 * Except, of course, beacon protection - it must be
4455 * offloaded since we just set a beacon template, and
4456 * then we must also offload the IGTK (not just BIGTK)
4457 * for firmware reasons.
4458 *
4459 * So just check for beacon protection - if we don't
4460 * have it we cannot get here with keyidx >= 6, and
4461 * if we do have it we need to send the key to FW in
4462 * all cases (CMAC/GMAC).
4463 */
4464 if (!wiphy_ext_feature_isset(hw->wiphy,
4465 NL80211_EXT_FEATURE_BEACON_PROTECTION) &&
4466 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
4467 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
4468 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) {
4469 ret = -EOPNOTSUPP;
4470 break;
4471 }
4472
4473 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
4474 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
4475 !iwl_mvm_has_new_tx_api(mvm)) {
4476 key->hw_key_idx = STA_KEY_IDX_INVALID;
4477 ret = 0;
4478 break;
4479 }
4480
4481 if (!mvmvif->ap_ibss_active) {
4482 for (i = 0;
4483 i < ARRAY_SIZE(mvmvif->ap_early_keys);
4484 i++) {
4485 if (!mvmvif->ap_early_keys[i]) {
4486 mvmvif->ap_early_keys[i] = key;
4487 break;
4488 }
4489 }
4490
4491 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys))
4492 ret = -ENOSPC;
4493 else
4494 ret = 0;
4495
4496 break;
4497 }
4498 }
4499
4500 /* During FW restart, in order to restore the state as it was,
4501 * don't try to reprogram keys we previously failed for.
4502 */
4503 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
4504 key->hw_key_idx == STA_KEY_IDX_INVALID) {
4505 IWL_DEBUG_MAC80211(mvm,
4506 "skip invalid idx key programming during restart\n");
4507 ret = 0;
4508 break;
4509 }
4510
4511 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
4512 mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
4513 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
4514 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
4515 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
4516 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
4517 struct ieee80211_key_seq seq;
4518 int tid, q;
4519
4520 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
4521 ptk_pn = kzalloc(struct_size(ptk_pn, q,
4522 mvm->trans->num_rx_queues),
4523 GFP_KERNEL);
4524 if (!ptk_pn) {
4525 ret = -ENOMEM;
4526 break;
4527 }
4528
4529 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
4530 ieee80211_get_key_rx_seq(key, tid, &seq);
4531 for (q = 0; q < mvm->trans->num_rx_queues; q++)
4532 memcpy(ptk_pn->q[q].pn[tid],
4533 seq.ccmp.pn,
4534 IEEE80211_CCMP_PN_LEN);
4535 }
4536
4537 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
4538 }
4539
4540 /* in HW restart reuse the index, otherwise request a new one */
4541 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
4542 key_offset = key->hw_key_idx;
4543 else
4544 key_offset = STA_KEY_IDX_INVALID;
4545
4546 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4547 mvmsta->pairwise_cipher = key->cipher;
4548
4549 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n",
4550 sta ? sta->addr : NULL, key->keyidx);
4551
4552 if (sec_key_ver)
4553 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key);
4554 else
4555 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
4556
4557 if (ret) {
4558 IWL_WARN(mvm, "set key failed\n");
4559 key->hw_key_idx = STA_KEY_IDX_INVALID;
4560 if (ptk_pn) {
4561 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
4562 kfree(ptk_pn);
4563 }
4564 /*
4565 * can't add key for RX, but we don't need it
4566 * in the device for TX so still return 0,
4567 * unless we have new TX API where we cannot
4568 * put key material into the TX_CMD
4569 */
4570 if (iwl_mvm_has_new_tx_api(mvm))
4571 ret = -EOPNOTSUPP;
4572 else
4573 ret = 0;
4574 }
4575
4576 break;
4577 case DISABLE_KEY:
4578 if (vif->type == NL80211_IFTYPE_STATION &&
4579 (keyidx == 6 || keyidx == 7))
4580 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6],
4581 NULL);
4582
4583 ret = -ENOENT;
4584 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
4585 if (mvmvif->ap_early_keys[i] == key) {
4586 mvmvif->ap_early_keys[i] = NULL;
4587 ret = 0;
4588 }
4589 }
4590
4591 /* found in pending list - don't do anything else */
4592 if (ret == 0)
4593 break;
4594
4595 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
4596 ret = 0;
4597 break;
4598 }
4599
4600 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
4601 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
4602 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
4603 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
4604 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
4605 ptk_pn = rcu_dereference_protected(
4606 mvmsta->ptk_pn[keyidx],
4607 lockdep_is_held(&mvm->mutex));
4608 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
4609 if (ptk_pn)
4610 kfree_rcu(ptk_pn, rcu_head);
4611 }
4612
4613 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
4614 if (sec_key_ver)
4615 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key);
4616 else
4617 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
4618 break;
4619 default:
4620 ret = -EINVAL;
4621 }
4622
4623 return ret;
4624 }
4625
4626 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
4627 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
4628 struct ieee80211_key_conf *key)
4629 {
4630 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4631
4632 guard(mvm)(mvm);
4633 return __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key);
4634 }
4635
4636 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
4637 struct ieee80211_vif *vif,
4638 struct ieee80211_key_conf *keyconf,
4639 struct ieee80211_sta *sta,
4640 u32 iv32, u16 *phase1key)
4641 {
4642 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4643
4644 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
4645 return;
4646
4647 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
4648 }
4649
4650
4651 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
4652 struct iwl_rx_packet *pkt, void *data)
4653 {
4654 struct iwl_mvm *mvm =
4655 container_of(notif_wait, struct iwl_mvm, notif_wait);
4656 struct iwl_hs20_roc_res *resp;
4657 int resp_len = iwl_rx_packet_payload_len(pkt);
4658 struct iwl_mvm_time_event_data *te_data = data;
4659
4660 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
4661 return true;
4662
4663 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
4664 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
4665 return true;
4666 }
4667
4668 resp = (void *)pkt->data;
4669
4670 IWL_DEBUG_TE(mvm,
4671 "Aux ROC: Received response from ucode: status=%d uid=%d\n",
4672 resp->status, resp->event_unique_id);
4673
4674 te_data->uid = le32_to_cpu(resp->event_unique_id);
4675 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
4676 te_data->uid);
4677
4678 spin_lock_bh(&mvm->time_event_lock);
4679 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
4680 spin_unlock_bh(&mvm->time_event_lock);
4681
4682 return true;
4683 }
4684
4685 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
4686 struct ieee80211_channel *channel,
4687 struct ieee80211_vif *vif,
4688 int duration)
4689 {
4690 int res;
4691 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4692 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
4693 static const u16 time_event_response[] = { HOT_SPOT_CMD };
4694 struct iwl_notification_wait wait_time_event;
4695 u32 req_dur, delay;
4696 struct iwl_hs20_roc_req aux_roc_req = {
4697 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
4698 .id_and_color =
4699 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
4700 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
4701 };
4702 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm,
4703 &aux_roc_req.channel_info);
4704 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm);
4705
4706 /* Set the channel info data */
4707 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value,
4708 iwl_mvm_phy_band_from_nl80211(channel->band),
4709 IWL_PHY_CHANNEL_MODE20,
4710 0);
4711
4712 /* Set the time and duration */
4713 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm));
4714
4715 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay);
4716 tail->duration = cpu_to_le32(req_dur);
4717 tail->apply_time_max_delay = cpu_to_le32(delay);
4718
4719 IWL_DEBUG_TE(mvm,
4720 "ROC: Requesting to remain on channel %u for %ums\n",
4721 channel->hw_value, req_dur);
4722 IWL_DEBUG_TE(mvm,
4723 "\t(requested = %ums, max_delay = %ums)\n",
4724 duration, delay);
4725
4726 /* Set the node address */
4727 memcpy(tail->node_addr, vif->addr, ETH_ALEN);
4728
4729 lockdep_assert_held(&mvm->mutex);
4730
4731 spin_lock_bh(&mvm->time_event_lock);
4732
4733 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
4734 spin_unlock_bh(&mvm->time_event_lock);
4735 return -EIO;
4736 }
4737
4738 te_data->vif = vif;
4739 te_data->duration = duration;
4740 te_data->id = HOT_SPOT_CMD;
4741
4742 spin_unlock_bh(&mvm->time_event_lock);
4743
4744 /*
4745 * Use a notification wait, which really just processes the
4746 * command response and doesn't wait for anything, in order
4747 * to be able to process the response and get the UID inside
4748 * the RX path. Using CMD_WANT_SKB doesn't work because it
4749 * stores the buffer and then wakes up this thread, by which
4750 * time another notification (that the time event started)
4751 * might already be processed unsuccessfully.
4752 */
4753 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
4754 time_event_response,
4755 ARRAY_SIZE(time_event_response),
4756 iwl_mvm_rx_aux_roc, te_data);
4757
4758 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len,
4759 &aux_roc_req);
4760
4761 if (res) {
4762 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
4763 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
4764 goto out_clear_te;
4765 }
4766
4767 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
4768 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
4769 /* should never fail */
4770 WARN_ON_ONCE(res);
4771
4772 if (res) {
4773 out_clear_te:
4774 spin_lock_bh(&mvm->time_event_lock);
4775 iwl_mvm_te_clear_data(mvm, te_data);
4776 spin_unlock_bh(&mvm->time_event_lock);
4777 }
4778
4779 return res;
4780 }
4781
4782 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id)
4783 {
4784 int ret = 0;
4785
4786 lockdep_assert_held(&mvm->mutex);
4787
4788 if (!fw_has_capa(&mvm->fw->ucode_capa,
4789 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
4790 IWL_ERR(mvm, "hotspot not supported\n");
4791 return -EINVAL;
4792 }
4793
4794 if (iwl_mvm_has_new_station_api(mvm->fw)) {
4795 ret = iwl_mvm_add_aux_sta(mvm, lmac_id);
4796 WARN(ret, "Failed to allocate aux station");
4797 }
4798
4799 return ret;
4800 }
4801
4802 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
4803 {
4804 int ret;
4805
4806 lockdep_assert_held(&mvm->mutex);
4807
4808 ret = iwl_mvm_binding_add_vif(mvm, vif);
4809 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
4810 return ret;
4811
4812 /* The station and queue allocation must be done only after the binding
4813 * is done, as otherwise the FW might incorrectly configure its state.
4814 */
4815 return iwl_mvm_add_p2p_bcast_sta(mvm, vif);
4816 }
4817
4818 static int iwl_mvm_roc(struct ieee80211_hw *hw,
4819 struct ieee80211_vif *vif,
4820 struct ieee80211_channel *channel,
4821 int duration,
4822 enum ieee80211_roc_type type)
4823 {
4824 static const struct iwl_mvm_roc_ops ops = {
4825 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20,
4826 .link = iwl_mvm_roc_link,
4827 };
4828
4829 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops);
4830 }
4831
4832 static int iwl_mvm_roc_station(struct iwl_mvm *mvm,
4833 struct ieee80211_channel *channel,
4834 struct ieee80211_vif *vif,
4835 int duration)
4836 {
4837 int ret;
4838 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD);
4839 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
4840 IWL_FW_CMD_VER_UNKNOWN);
4841
4842 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) {
4843 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration);
4844 } else if (fw_ver >= 3) {
4845 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration,
4846 ROC_ACTIVITY_HOTSPOT);
4847 } else {
4848 ret = -EOPNOTSUPP;
4849 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver);
4850 }
4851
4852 return ret;
4853 }
4854
4855 static int iwl_mvm_roc_p2p(struct iwl_mvm *mvm,
4856 struct ieee80211_channel *channel,
4857 struct ieee80211_vif *vif,
4858 int duration,
4859 enum ieee80211_roc_type type)
4860 {
4861 enum iwl_roc_activity activity;
4862 int ret;
4863
4864 lockdep_assert_held(&mvm->mutex);
4865
4866 switch (type) {
4867 case IEEE80211_ROC_TYPE_NORMAL:
4868 activity = ROC_ACTIVITY_P2P_DISC;
4869 break;
4870 case IEEE80211_ROC_TYPE_MGMT_TX:
4871 activity = ROC_ACTIVITY_P2P_NEG;
4872 break;
4873 default:
4874 WARN_ONCE(1, "Got an invalid P2P ROC type\n");
4875 return -EINVAL;
4876 }
4877
4878 ret = iwl_mvm_mld_add_aux_sta(mvm,
4879 iwl_mvm_get_lmac_id(mvm, channel->band));
4880 if (ret)
4881 return ret;
4882
4883 return iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, activity);
4884 }
4885
4886 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm,
4887 struct ieee80211_vif *vif,
4888 struct ieee80211_channel *channel)
4889 {
4890 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4891 struct cfg80211_chan_def chandef;
4892 int i;
4893
4894 lockdep_assert_held(&mvm->mutex);
4895
4896 if (mvmvif->deflink.phy_ctxt &&
4897 channel == mvmvif->deflink.phy_ctxt->channel)
4898 return 0;
4899
4900 /* Try using a PHY context that is already in use */
4901 for (i = 0; i < NUM_PHY_CTX; i++) {
4902 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i];
4903
4904 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt)
4905 continue;
4906
4907 if (channel == phy_ctxt->channel) {
4908 if (mvmvif->deflink.phy_ctxt)
4909 iwl_mvm_phy_ctxt_unref(mvm,
4910 mvmvif->deflink.phy_ctxt);
4911
4912 mvmvif->deflink.phy_ctxt = phy_ctxt;
4913 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt);
4914 return 0;
4915 }
4916 }
4917
4918 /* We already have a phy_ctxt, but it's not on the right channel */
4919 if (mvmvif->deflink.phy_ctxt)
4920 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);
4921
4922 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
4923 if (!mvmvif->deflink.phy_ctxt)
4924 return -ENOSPC;
4925
4926 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
4927
4928 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt,
4929 &chandef, NULL, 1, 1);
4930 }
4931
4932 /* Execute the common part for MLD and non-MLD modes */
4933 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4934 struct ieee80211_channel *channel, int duration,
4935 enum ieee80211_roc_type type,
4936 const struct iwl_mvm_roc_ops *ops)
4937 {
4938 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4939 struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm);
4940 u32 lmac_id;
4941 int ret;
4942
4943 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
4944 duration, type);
4945
4946 /*
4947 * Flush the done work, just in case it's still pending, so that
4948 * the work it does can complete and we can accept new frames.
4949 */
4950 flush_work(&mvm->roc_done_wk);
4951
4952 if (!IS_ERR_OR_NULL(bss_vif)) {
4953 ret = iwl_mvm_block_esr_sync(mvm, bss_vif,
4954 IWL_MVM_ESR_BLOCKED_ROC);
4955 if (ret)
4956 return ret;
4957 }
4958
4959 guard(mvm)(mvm);
4960
4961 switch (vif->type) {
4962 case NL80211_IFTYPE_STATION:
4963 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band);
4964
4965 /* Use aux roc framework (HS20) */
4966 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id);
4967 if (!ret)
4968 ret = iwl_mvm_roc_station(mvm, channel, vif, duration);
4969 return ret;
4970 case NL80211_IFTYPE_P2P_DEVICE:
4971 /* handle below */
4972 break;
4973 default:
4974 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type);
4975 return -EINVAL;
4976 }
4977
4978 if (iwl_mvm_has_p2p_over_aux(mvm)) {
4979 ret = iwl_mvm_roc_p2p(mvm, channel, vif, duration, type);
4980 return ret;
4981 }
4982
4983 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel);
4984 if (ret)
4985 return ret;
4986
4987 ret = ops->link(mvm, vif);
4988 if (ret)
4989 return ret;
4990
4991 return iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
4992 }
4993
4994 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw,
4995 struct ieee80211_vif *vif)
4996 {
4997 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4998
4999 IWL_DEBUG_MAC80211(mvm, "enter\n");
5000
5001 iwl_mvm_stop_roc(mvm, vif);
5002
5003 IWL_DEBUG_MAC80211(mvm, "leave\n");
5004 return 0;
5005 }
5006
5007 struct iwl_mvm_ftm_responder_iter_data {
5008 bool responder;
5009 struct ieee80211_chanctx_conf *ctx;
5010 };
5011
5012 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac,
5013 struct ieee80211_vif *vif)
5014 {
5015 struct iwl_mvm_ftm_responder_iter_data *data = _data;
5016
5017 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx &&
5018 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params)
5019 data->responder = true;
5020 }
5021
5022 bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm,
5023 struct ieee80211_chanctx_conf *ctx)
5024 {
5025 struct iwl_mvm_ftm_responder_iter_data data = {
5026 .responder = false,
5027 .ctx = ctx,
5028 };
5029
5030 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
5031 IEEE80211_IFACE_ITER_NORMAL,
5032 iwl_mvm_ftm_responder_chanctx_iter,
5033 &data);
5034 return data.responder;
5035 }
5036
5037 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
5038 struct ieee80211_chanctx_conf *ctx)
5039 {
5040 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
5041 struct iwl_mvm_phy_ctxt *phy_ctxt;
5042 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx);
5043 int ret;
5044
5045 lockdep_assert_held(&mvm->mutex);
5046
5047 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
5048
5049 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
5050 if (!phy_ctxt) {
5051 ret = -ENOSPC;
5052 goto out;
5053 }
5054
5055 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap,
5056 ctx->rx_chains_static,
5057 ctx->rx_chains_dynamic);
5058 if (ret) {
5059 IWL_ERR(mvm, "Failed to add PHY context\n");
5060 goto out;
5061 }
5062
5063 *phy_ctxt_id = phy_ctxt->id;
5064 out:
5065 return ret;
5066 }
5067
5068 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
5069 struct ieee80211_chanctx_conf *ctx)
5070 {
5071 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5072
5073 guard(mvm)(mvm);
5074 return __iwl_mvm_add_chanctx(mvm, ctx);
5075 }
5076
5077 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
5078 struct ieee80211_chanctx_conf *ctx)
5079 {
5080 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
5081 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
5082
5083 lockdep_assert_held(&mvm->mutex);
5084
5085 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
5086 }
5087
5088 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
5089 struct ieee80211_chanctx_conf *ctx)
5090 {
5091 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5092
5093 guard(mvm)(mvm);
5094 __iwl_mvm_remove_chanctx(mvm, ctx);
5095 }
5096
5097 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
5098 struct ieee80211_chanctx_conf *ctx, u32 changed)
5099 {
5100 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5101 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
5102 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
5103 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx);
5104
5105 if (WARN_ONCE((phy_ctxt->ref > 1) &&
5106 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
5107 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
5108 IEEE80211_CHANCTX_CHANGE_RADAR |
5109 IEEE80211_CHANCTX_CHANGE_MIN_DEF)),
5110 "Cannot change PHY. Ref=%d, changed=0x%X\n",
5111 phy_ctxt->ref, changed))
5112 return;
5113
5114 guard(mvm)(mvm);
5115
5116 /* we are only changing the min_width, may be a noop */
5117 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_DEF) {
5118 if (phy_ctxt->width == def->width)
5119 return;
5120
5121 /* we are just toggling between 20_NOHT and 20 */
5122 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&
5123 def->width <= NL80211_CHAN_WIDTH_20)
5124 return;
5125 }
5126
5127 iwl_mvm_bt_coex_vif_change(mvm);
5128 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap,
5129 ctx->rx_chains_static,
5130 ctx->rx_chains_dynamic);
5131 }
5132
5133 /*
5134 * This function executes the common part for MLD and non-MLD modes.
5135 *
5136 * Returns true if we're done assigning the chanctx
5137 * (either on failure or success)
5138 */
5139 static bool
5140 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm,
5141 struct ieee80211_vif *vif,
5142 struct ieee80211_chanctx_conf *ctx,
5143 bool switching_chanctx, int *ret)
5144 {
5145 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
5146 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
5147 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5148
5149 lockdep_assert_held(&mvm->mutex);
5150
5151 mvmvif->deflink.phy_ctxt = phy_ctxt;
5152
5153 switch (vif->type) {
5154 case NL80211_IFTYPE_AP:
5155 /* only needed if we're switching chanctx (i.e. during CSA) */
5156 if (switching_chanctx) {
5157 mvmvif->ap_ibss_active = true;
5158 break;
5159 }
5160 fallthrough;
5161 case NL80211_IFTYPE_ADHOC:
5162 /*
5163 * The AP binding flow is handled as part of the start_ap flow
5164 * (in bss_info_changed), similarly for IBSS.
5165 */
5166 *ret = 0;
5167 return true;
5168 case NL80211_IFTYPE_STATION:
5169 break;
5170 case NL80211_IFTYPE_MONITOR:
5171 /* always disable PS when a monitor interface is active */
5172 mvmvif->ps_disabled = true;
5173 break;
5174 default:
5175 *ret = -EINVAL;
5176 return true;
5177 }
5178 return false;
5179 }
5180
5181 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
5182 struct ieee80211_vif *vif,
5183 struct ieee80211_bss_conf *link_conf,
5184 struct ieee80211_chanctx_conf *ctx,
5185 bool switching_chanctx)
5186 {
5187 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5188 int ret;
5189
5190 if (WARN_ON(!link_conf))
5191 return -EINVAL;
5192
5193 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx,
5194 switching_chanctx, &ret))
5195 goto out;
5196
5197 ret = iwl_mvm_binding_add_vif(mvm, vif);
5198 if (ret)
5199 goto out;
5200
5201 /*
5202 * Power state must be updated before quotas,
5203 * otherwise fw will complain.
5204 */
5205 iwl_mvm_power_update_mac(mvm);
5206
5207 /* Setting the quota at this stage is only required for monitor
5208 * interfaces. For the other types, the bss_info changed flow
5209 * will handle quota settings.
5210 */
5211 if (vif->type == NL80211_IFTYPE_MONITOR) {
5212 mvmvif->monitor_active = true;
5213 ret = iwl_mvm_update_quotas(mvm, false, NULL);
5214 if (ret)
5215 goto out_remove_binding;
5216
5217 ret = iwl_mvm_add_snif_sta(mvm, vif);
5218 if (ret)
5219 goto out_remove_binding;
5220
5221 }
5222
5223 /* Handle binding during CSA */
5224 if (vif->type == NL80211_IFTYPE_AP) {
5225 iwl_mvm_update_quotas(mvm, false, NULL);
5226 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
5227 }
5228
5229 if (vif->type == NL80211_IFTYPE_STATION) {
5230 if (!switching_chanctx) {
5231 mvmvif->csa_bcn_pending = false;
5232 goto out;
5233 }
5234
5235 mvmvif->csa_bcn_pending = true;
5236
5237 if (!fw_has_capa(&mvm->fw->ucode_capa,
5238 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
5239 u32 duration = 5 * vif->bss_conf.beacon_int;
5240
5241 /* Protect the session to make sure we hear the first
5242 * beacon on the new channel.
5243 */
5244 iwl_mvm_protect_session(mvm, vif, duration, duration,
5245 vif->bss_conf.beacon_int / 2,
5246 true);
5247 }
5248
5249 iwl_mvm_update_quotas(mvm, false, NULL);
5250
5251 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif,
5252 link_conf,
5253 false);
5254 }
5255
5256 goto out;
5257
5258 out_remove_binding:
5259 iwl_mvm_binding_remove_vif(mvm, vif);
5260 iwl_mvm_power_update_mac(mvm);
5261 out:
5262 if (ret)
5263 mvmvif->deflink.phy_ctxt = NULL;
5264 return ret;
5265 }
5266
5267 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
5268 struct ieee80211_vif *vif,
5269 struct ieee80211_bss_conf *link_conf,
5270 struct ieee80211_chanctx_conf *ctx)
5271 {
5272 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5273
5274 guard(mvm)(mvm);
5275 return __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false);
5276 }
5277
5278 /*
5279 * This function executes the common part for MLD and non-MLD modes.
5280 *
5281 * Returns if chanctx unassign chanctx is done
5282 * (either on failure or success)
5283 */
5284 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm,
5285 struct ieee80211_vif *vif,
5286 bool switching_chanctx)
5287 {
5288 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5289
5290 lockdep_assert_held(&mvm->mutex);
5291 iwl_mvm_remove_time_event(mvm, mvmvif,
5292 &mvmvif->time_event_data);
5293
5294 switch (vif->type) {
5295 case NL80211_IFTYPE_ADHOC:
5296 return true;
5297 case NL80211_IFTYPE_MONITOR:
5298 mvmvif->monitor_active = false;
5299 mvmvif->ps_disabled = false;
5300 break;
5301 case NL80211_IFTYPE_AP:
5302 /* This part is triggered only during CSA */
5303 if (!switching_chanctx || !mvmvif->ap_ibss_active)
5304 return true;
5305
5306 mvmvif->csa_countdown = false;
5307
5308 /* Set CS bit on all the stations */
5309 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
5310
5311 /* Save blocked iface, the timeout is set on the next beacon */
5312 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
5313
5314 mvmvif->ap_ibss_active = false;
5315 break;
5316 default:
5317 break;
5318 }
5319 return false;
5320 }
5321
5322 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
5323 struct ieee80211_vif *vif,
5324 struct ieee80211_bss_conf *link_conf,
5325 struct ieee80211_chanctx_conf *ctx,
5326 bool switching_chanctx)
5327 {
5328 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5329 struct ieee80211_vif *disabled_vif = NULL;
5330
5331 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx))
5332 goto out;
5333
5334 if (vif->type == NL80211_IFTYPE_MONITOR)
5335 iwl_mvm_rm_snif_sta(mvm, vif);
5336
5337
5338 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) {
5339 disabled_vif = vif;
5340 if (!fw_has_capa(&mvm->fw->ucode_capa,
5341 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
5342 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
5343 }
5344
5345 iwl_mvm_update_quotas(mvm, false, disabled_vif);
5346 iwl_mvm_binding_remove_vif(mvm, vif);
5347
5348 out:
5349 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) &&
5350 switching_chanctx)
5351 return;
5352 mvmvif->deflink.phy_ctxt = NULL;
5353 iwl_mvm_power_update_mac(mvm);
5354 }
5355
5356 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
5357 struct ieee80211_vif *vif,
5358 struct ieee80211_bss_conf *link_conf,
5359 struct ieee80211_chanctx_conf *ctx)
5360 {
5361 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5362
5363 guard(mvm)(mvm);
5364 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false);
5365 }
5366
5367 static int
5368 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
5369 struct ieee80211_vif_chanctx_switch *vifs,
5370 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5371 {
5372 int ret;
5373
5374 guard(mvm)(mvm);
5375 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5376 vifs[0].old_ctx, true);
5377 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
5378
5379 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
5380 if (ret) {
5381 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
5382 goto out_reassign;
5383 }
5384
5385 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5386 vifs[0].new_ctx, true);
5387 if (ret) {
5388 IWL_ERR(mvm,
5389 "failed to assign new_ctx during channel switch\n");
5390 goto out_remove;
5391 }
5392
5393 /* we don't support TDLS during DCM - can be caused by channel switch */
5394 if (iwl_mvm_phy_ctx_count(mvm) > 1)
5395 iwl_mvm_teardown_tdls_peers(mvm);
5396
5397 return 0;
5398
5399 out_remove:
5400 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
5401
5402 out_reassign:
5403 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
5404 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
5405 goto out_restart;
5406 }
5407
5408 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5409 vifs[0].old_ctx, true)) {
5410 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
5411 goto out_restart;
5412 }
5413
5414 return ret;
5415
5416 out_restart:
5417 /* things keep failing, better restart the hw */
5418 iwl_mvm_nic_restart(mvm, false);
5419 return ret;
5420 }
5421
5422 static int
5423 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
5424 struct ieee80211_vif_chanctx_switch *vifs,
5425 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5426 {
5427 int ret;
5428
5429 guard(mvm)(mvm);
5430 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5431 vifs[0].old_ctx, true);
5432
5433 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5434 vifs[0].new_ctx, true);
5435 if (ret) {
5436 IWL_ERR(mvm,
5437 "failed to assign new_ctx during channel switch\n");
5438 goto out_reassign;
5439 }
5440
5441 return 0;
5442
5443 out_reassign:
5444 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5445 vifs[0].old_ctx, true)) {
5446 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
5447 goto out_restart;
5448 }
5449
5450 return ret;
5451
5452 out_restart:
5453 /* things keep failing, better restart the hw */
5454 iwl_mvm_nic_restart(mvm, false);
5455 return ret;
5456 }
5457
5458 /* Execute the common part for both MLD and non-MLD modes */
5459 int
5460 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw,
5461 struct ieee80211_vif_chanctx_switch *vifs,
5462 int n_vifs,
5463 enum ieee80211_chanctx_switch_mode mode,
5464 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5465 {
5466 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5467 int ret;
5468
5469 /* we only support a single-vif right now */
5470 if (n_vifs > 1)
5471 return -EOPNOTSUPP;
5472
5473 switch (mode) {
5474 case CHANCTX_SWMODE_SWAP_CONTEXTS:
5475 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops);
5476 break;
5477 case CHANCTX_SWMODE_REASSIGN_VIF:
5478 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops);
5479 break;
5480 default:
5481 ret = -EOPNOTSUPP;
5482 break;
5483 }
5484
5485 return ret;
5486 }
5487
5488 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
5489 struct ieee80211_vif_chanctx_switch *vifs,
5490 int n_vifs,
5491 enum ieee80211_chanctx_switch_mode mode)
5492 {
5493 static const struct iwl_mvm_switch_vif_chanctx_ops ops = {
5494 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx,
5495 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx,
5496 };
5497
5498 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops);
5499 }
5500
5501 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
5502 {
5503 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5504
5505 return mvm->ibss_manager;
5506 }
5507
5508 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
5509 bool set)
5510 {
5511 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5512 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
5513
5514 if (!mvm_sta || !mvm_sta->vif) {
5515 IWL_ERR(mvm, "Station is not associated to a vif\n");
5516 return -EINVAL;
5517 }
5518
5519 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif,
5520 &mvm_sta->vif->bss_conf);
5521 }
5522
5523 #ifdef CONFIG_NL80211_TESTMODE
5524 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
5525 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
5526 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
5527 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
5528 };
5529
5530 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
5531 struct ieee80211_vif *vif,
5532 void *data, int len)
5533 {
5534 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
5535 int err;
5536 u32 noa_duration;
5537
5538 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len,
5539 iwl_mvm_tm_policy, NULL);
5540 if (err)
5541 return err;
5542
5543 if (!tb[IWL_MVM_TM_ATTR_CMD])
5544 return -EINVAL;
5545
5546 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
5547 case IWL_MVM_TM_CMD_SET_NOA:
5548 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
5549 !vif->bss_conf.enable_beacon ||
5550 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
5551 return -EINVAL;
5552
5553 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
5554 if (noa_duration >= vif->bss_conf.beacon_int)
5555 return -EINVAL;
5556
5557 mvm->noa_duration = noa_duration;
5558 mvm->noa_vif = vif;
5559
5560 return iwl_mvm_update_quotas(mvm, true, NULL);
5561 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
5562 /* must be associated client vif - ignore authorized */
5563 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
5564 !vif->cfg.assoc || !vif->bss_conf.dtim_period ||
5565 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
5566 return -EINVAL;
5567
5568 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
5569 return iwl_mvm_enable_beacon_filter(mvm, vif);
5570 return iwl_mvm_disable_beacon_filter(mvm, vif);
5571 }
5572
5573 return -EOPNOTSUPP;
5574 }
5575
5576 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
5577 struct ieee80211_vif *vif,
5578 void *data, int len)
5579 {
5580 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5581
5582 guard(mvm)(mvm);
5583 return __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
5584 }
5585 #endif
5586
5587 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5588 struct ieee80211_channel_switch *chsw)
5589 {
5590 /* By implementing this operation, we prevent mac80211 from
5591 * starting its own channel switch timer, so that we can call
5592 * ieee80211_chswitch_done() ourselves at the right time
5593 * (which is when the absence time event starts).
5594 */
5595
5596 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
5597 "dummy channel switch op\n");
5598 }
5599
5600 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm,
5601 struct ieee80211_vif *vif,
5602 struct ieee80211_channel_switch *chsw)
5603 {
5604 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5605 struct iwl_chan_switch_te_cmd cmd = {
5606 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
5607 mvmvif->color)),
5608 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
5609 .tsf = cpu_to_le32(chsw->timestamp),
5610 .cs_count = chsw->count,
5611 .cs_mode = chsw->block_tx,
5612 };
5613
5614 lockdep_assert_held(&mvm->mutex);
5615
5616 if (chsw->delay)
5617 cmd.cs_delayed_bcn_count =
5618 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int);
5619
5620 return iwl_mvm_send_cmd_pdu(mvm,
5621 WIDE_ID(MAC_CONF_GROUP,
5622 CHANNEL_SWITCH_TIME_EVENT_CMD),
5623 0, sizeof(cmd), &cmd);
5624 }
5625
5626 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm,
5627 struct ieee80211_vif *vif,
5628 struct ieee80211_channel_switch *chsw)
5629 {
5630 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5631 u32 apply_time;
5632
5633 /* Schedule the time event to a bit before beacon 1,
5634 * to make sure we're in the new channel when the
5635 * GO/AP arrives. In case count <= 1 immediately schedule the
5636 * TE (this might result with some packet loss or connection
5637 * loss).
5638 */
5639 if (chsw->count <= 1)
5640 apply_time = 0;
5641 else
5642 apply_time = chsw->device_timestamp +
5643 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
5644 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
5645
5646 if (chsw->block_tx)
5647 iwl_mvm_csa_client_absent(mvm, vif);
5648
5649 if (mvmvif->bf_enabled) {
5650 int ret = iwl_mvm_disable_beacon_filter(mvm, vif);
5651
5652 if (ret)
5653 return ret;
5654 }
5655
5656 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
5657 apply_time);
5658
5659 return 0;
5660 }
5661
5662 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta)
5663 {
5664 int i;
5665
5666 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {
5667 struct iwl_mvm_txq *mvmtxq =
5668 iwl_mvm_txq_from_mac80211(sta->txq[i]);
5669
5670 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);
5671 }
5672 }
5673
5674 #define IWL_MAX_CSA_BLOCK_TX 1500
5675 int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm,
5676 struct ieee80211_vif *vif,
5677 struct ieee80211_channel_switch *chsw)
5678 {
5679 struct ieee80211_vif *csa_vif;
5680 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5681 struct iwl_mvm_txq *mvmtxq;
5682 int ret;
5683
5684 lockdep_assert_held(&mvm->mutex);
5685
5686 mvmvif->csa_failed = false;
5687 mvmvif->csa_blocks_tx = false;
5688
5689 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
5690 chsw->chandef.center_freq1);
5691
5692 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
5693 ieee80211_vif_to_wdev(vif),
5694 FW_DBG_TRIGGER_CHANNEL_SWITCH);
5695
5696 switch (vif->type) {
5697 case NL80211_IFTYPE_AP:
5698 csa_vif =
5699 rcu_dereference_protected(mvm->csa_vif,
5700 lockdep_is_held(&mvm->mutex));
5701 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active,
5702 "Another CSA is already in progress"))
5703 return -EBUSY;
5704
5705 /* we still didn't unblock tx. prevent new CS meanwhile */
5706 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
5707 lockdep_is_held(&mvm->mutex)))
5708 return -EBUSY;
5709
5710 rcu_assign_pointer(mvm->csa_vif, vif);
5711
5712 if (WARN_ONCE(mvmvif->csa_countdown,
5713 "Previous CSA countdown didn't complete"))
5714 return -EBUSY;
5715
5716 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
5717
5718 if (!chsw->block_tx)
5719 break;
5720 /* don't need blocking in driver otherwise - mac80211 will do */
5721 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA))
5722 break;
5723
5724 mvmvif->csa_blocks_tx = true;
5725 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq);
5726 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);
5727 ieee80211_iterate_stations_atomic(mvm->hw,
5728 iwl_mvm_csa_block_txqs,
5729 NULL);
5730 break;
5731 case NL80211_IFTYPE_STATION:
5732 mvmvif->csa_blocks_tx = chsw->block_tx;
5733
5734 /*
5735 * In the new flow FW is in charge of timing the switch so there
5736 * is no need for all of this
5737 */
5738 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
5739 CHANNEL_SWITCH_ERROR_NOTIF,
5740 0))
5741 break;
5742
5743 /*
5744 * We haven't configured the firmware to be associated yet since
5745 * we don't know the dtim period. In this case, the firmware can't
5746 * track the beacons.
5747 */
5748 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period)
5749 return -EBUSY;
5750
5751 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX &&
5752 hweight16(vif->valid_links) <= 1)
5753 schedule_delayed_work(&mvmvif->csa_work, 0);
5754
5755 if (chsw->block_tx) {
5756 /*
5757 * In case of undetermined / long time with immediate
5758 * quiet monitor status to gracefully disconnect
5759 */
5760 if (!chsw->count ||
5761 chsw->count * vif->bss_conf.beacon_int >
5762 IWL_MAX_CSA_BLOCK_TX)
5763 schedule_delayed_work(&mvmvif->csa_work,
5764 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX));
5765 }
5766
5767 if (!fw_has_capa(&mvm->fw->ucode_capa,
5768 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
5769 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw);
5770 if (ret)
5771 return ret;
5772 } else {
5773 iwl_mvm_schedule_client_csa(mvm, vif, chsw);
5774 }
5775
5776 mvmvif->csa_count = chsw->count;
5777 mvmvif->csa_misbehave = false;
5778 break;
5779 default:
5780 break;
5781 }
5782
5783 mvmvif->ps_disabled = true;
5784
5785 ret = iwl_mvm_power_update_ps(mvm);
5786 if (ret)
5787 return ret;
5788
5789 /* we won't be on this channel any longer */
5790 iwl_mvm_teardown_tdls_peers(mvm);
5791
5792 return ret;
5793 }
5794
5795 static int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw,
5796 struct ieee80211_vif *vif,
5797 struct ieee80211_channel_switch *chsw)
5798 {
5799 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5800
5801 guard(mvm)(mvm);
5802 return iwl_mvm_pre_channel_switch(mvm, vif, chsw);
5803 }
5804
5805 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw,
5806 struct ieee80211_vif *vif,
5807 struct ieee80211_channel_switch *chsw)
5808 {
5809 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5810 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5811 struct iwl_chan_switch_te_cmd cmd = {
5812 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
5813 mvmvif->color)),
5814 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY),
5815 .tsf = cpu_to_le32(chsw->timestamp),
5816 .cs_count = chsw->count,
5817 .cs_mode = chsw->block_tx,
5818 };
5819
5820 /*
5821 * In the new flow FW is in charge of timing the switch so there is no
5822 * need for all of this
5823 */
5824 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
5825 CHANNEL_SWITCH_ERROR_NOTIF, 0))
5826 return;
5827
5828 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY))
5829 return;
5830
5831 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n",
5832 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx);
5833
5834 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) {
5835 if (mvmvif->csa_misbehave) {
5836 struct ieee80211_bss_conf *link_conf;
5837
5838 /* Second time, give up on this AP*/
5839
5840 link_conf = wiphy_dereference(hw->wiphy,
5841 vif->link_conf[chsw->link_id]);
5842 if (WARN_ON(!link_conf))
5843 return;
5844
5845 iwl_mvm_abort_channel_switch(hw, vif, link_conf);
5846 ieee80211_chswitch_done(vif, false, 0);
5847 mvmvif->csa_misbehave = false;
5848 return;
5849 }
5850 mvmvif->csa_misbehave = true;
5851 }
5852 mvmvif->csa_count = chsw->count;
5853
5854 guard(mvm)(mvm);
5855 if (mvmvif->csa_failed)
5856 return;
5857
5858 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
5859 WIDE_ID(MAC_CONF_GROUP,
5860 CHANNEL_SWITCH_TIME_EVENT_CMD),
5861 0, sizeof(cmd), &cmd));
5862 }
5863
5864 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
5865 {
5866 int i;
5867
5868 if (!iwl_mvm_has_new_tx_api(mvm)) {
5869 /* we can't ask the firmware anything if it is dead */
5870 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
5871 &mvm->status))
5872 return;
5873 if (drop) {
5874 guard(mvm)(mvm);
5875 iwl_mvm_flush_tx_path(mvm,
5876 iwl_mvm_flushable_queues(mvm) & queues);
5877 } else {
5878 iwl_trans_wait_tx_queues_empty(mvm->trans, queues);
5879 }
5880 return;
5881 }
5882
5883 guard(mvm)(mvm);
5884 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
5885 struct ieee80211_sta *sta;
5886
5887 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
5888 lockdep_is_held(&mvm->mutex));
5889 if (IS_ERR_OR_NULL(sta))
5890 continue;
5891
5892 if (drop)
5893 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF);
5894 else
5895 iwl_mvm_wait_sta_queues_empty(mvm,
5896 iwl_mvm_sta_from_mac80211(sta));
5897 }
5898 }
5899
5900 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5901 u32 queues, bool drop)
5902 {
5903 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5904 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5905 struct iwl_mvm_sta *mvmsta;
5906 struct ieee80211_sta *sta;
5907 bool ap_sta_done = false;
5908 int i;
5909 u32 msk = 0;
5910
5911 if (!vif) {
5912 iwl_mvm_flush_no_vif(mvm, queues, drop);
5913 return;
5914 }
5915
5916 if (!drop && hweight16(vif->active_links) <= 1) {
5917 int link_id = vif->active_links ? __ffs(vif->active_links) : 0;
5918 struct ieee80211_bss_conf *link_conf;
5919
5920 link_conf = wiphy_dereference(hw->wiphy,
5921 vif->link_conf[link_id]);
5922 if (WARN_ON(!link_conf))
5923 return;
5924 if (link_conf->csa_active && mvmvif->csa_blocks_tx)
5925 drop = true;
5926 }
5927
5928 /* Make sure we're done with the deferred traffic before flushing */
5929 flush_work(&mvm->add_stream_wk);
5930
5931 mutex_lock(&mvm->mutex);
5932
5933 /* flush the AP-station and all TDLS peers */
5934 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
5935 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
5936 lockdep_is_held(&mvm->mutex));
5937 if (IS_ERR_OR_NULL(sta))
5938 continue;
5939
5940 mvmsta = iwl_mvm_sta_from_mac80211(sta);
5941 if (mvmsta->vif != vif)
5942 continue;
5943
5944 if (sta == mvmvif->ap_sta) {
5945 if (ap_sta_done)
5946 continue;
5947 ap_sta_done = true;
5948 }
5949
5950 if (drop) {
5951 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id,
5952 mvmsta->tfd_queue_msk))
5953 IWL_ERR(mvm, "flush request fail\n");
5954 } else {
5955 if (iwl_mvm_has_new_tx_api(mvm))
5956 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
5957 else /* only used for !iwl_mvm_has_new_tx_api() below */
5958 msk |= mvmsta->tfd_queue_msk;
5959 }
5960 }
5961
5962 mutex_unlock(&mvm->mutex);
5963
5964 /* this can take a while, and we may need/want other operations
5965 * to succeed while doing this, so do it without the mutex held
5966 * If the firmware is dead, this can't work...
5967 */
5968 if (!drop && !iwl_mvm_has_new_tx_api(mvm) &&
5969 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
5970 &mvm->status))
5971 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
5972 }
5973
5974 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5975 struct ieee80211_sta *sta)
5976 {
5977 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
5978 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5979 struct iwl_mvm_link_sta *mvm_link_sta;
5980 struct ieee80211_link_sta *link_sta;
5981 int link_id;
5982
5983 guard(mvm)(mvm);
5984 for_each_sta_active_link(vif, sta, link_sta, link_id) {
5985 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id],
5986 lockdep_is_held(&mvm->mutex));
5987 if (!mvm_link_sta)
5988 continue;
5989
5990 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id,
5991 mvmsta->tfd_queue_msk))
5992 IWL_ERR(mvm, "flush request fail\n");
5993 }
5994 }
5995
5996 static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx,
5997 struct survey_info *survey)
5998 {
5999 int chan_idx;
6000 enum nl80211_band band;
6001 int ret;
6002
6003 mutex_lock(&mvm->mutex);
6004
6005 if (!mvm->acs_survey) {
6006 ret = -ENOENT;
6007 goto out;
6008 }
6009
6010 /* Find and return the next entry that has a non-zero active time */
6011 for (band = 0; band < NUM_NL80211_BANDS; band++) {
6012 struct ieee80211_supported_band *sband =
6013 mvm->hw->wiphy->bands[band];
6014
6015 if (!sband)
6016 continue;
6017
6018 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) {
6019 struct iwl_mvm_acs_survey_channel *info =
6020 &mvm->acs_survey->bands[band][chan_idx];
6021
6022 if (!info->time)
6023 continue;
6024
6025 /* Found (the next) channel to report */
6026 survey->channel = &sband->channels[chan_idx];
6027 survey->filled = SURVEY_INFO_TIME |
6028 SURVEY_INFO_TIME_BUSY |
6029 SURVEY_INFO_TIME_RX |
6030 SURVEY_INFO_TIME_TX;
6031 survey->time = info->time;
6032 survey->time_busy = info->time_busy;
6033 survey->time_rx = info->time_rx;
6034 survey->time_tx = info->time_tx;
6035 survey->noise = info->noise;
6036 if (survey->noise < 0)
6037 survey->filled |= SURVEY_INFO_NOISE_DBM;
6038
6039 /* Clear time so that channel is only reported once */
6040 info->time = 0;
6041
6042 ret = 0;
6043 goto out;
6044 }
6045 }
6046
6047 ret = -ENOENT;
6048
6049 out:
6050 mutex_unlock(&mvm->mutex);
6051
6052 return ret;
6053 }
6054
6055 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
6056 struct survey_info *survey)
6057 {
6058 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6059 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
6060 WIDE_ID(SYSTEM_GROUP,
6061 SYSTEM_STATISTICS_CMD),
6062 IWL_FW_CMD_VER_UNKNOWN);
6063
6064 memset(survey, 0, sizeof(*survey));
6065
6066 if (!fw_has_capa(&mvm->fw->ucode_capa,
6067 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
6068 return -ENOENT;
6069
6070 /*
6071 * Return the beacon stats at index zero and pass on following indices
6072 * to the function returning the full survey, most likely for ACS
6073 * (Automatic Channel Selection).
6074 */
6075 if (idx > 0)
6076 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey);
6077
6078 guard(mvm)(mvm);
6079
6080 if (iwl_mvm_firmware_running(mvm)) {
6081 int ret = iwl_mvm_request_statistics(mvm, false);
6082
6083 if (ret)
6084 return ret;
6085 }
6086
6087 survey->filled = SURVEY_INFO_TIME_RX |
6088 SURVEY_INFO_TIME_TX;
6089
6090 survey->time_rx = mvm->accu_radio_stats.rx_time +
6091 mvm->radio_stats.rx_time;
6092 do_div(survey->time_rx, USEC_PER_MSEC);
6093
6094 survey->time_tx = mvm->accu_radio_stats.tx_time +
6095 mvm->radio_stats.tx_time;
6096 do_div(survey->time_tx, USEC_PER_MSEC);
6097
6098 /* the new fw api doesn't support the following fields */
6099 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN)
6100 return 0;
6101
6102 survey->filled |= SURVEY_INFO_TIME |
6103 SURVEY_INFO_TIME_SCAN;
6104 survey->time = mvm->accu_radio_stats.on_time_rf +
6105 mvm->radio_stats.on_time_rf;
6106 do_div(survey->time, USEC_PER_MSEC);
6107
6108 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
6109 mvm->radio_stats.on_time_scan;
6110 do_div(survey->time_scan, USEC_PER_MSEC);
6111
6112 return 0;
6113 }
6114
6115 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo)
6116 {
6117 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
6118 u32 gi_ltf;
6119
6120 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
6121 case RATE_MCS_CHAN_WIDTH_20:
6122 rinfo->bw = RATE_INFO_BW_20;
6123 break;
6124 case RATE_MCS_CHAN_WIDTH_40:
6125 rinfo->bw = RATE_INFO_BW_40;
6126 break;
6127 case RATE_MCS_CHAN_WIDTH_80:
6128 rinfo->bw = RATE_INFO_BW_80;
6129 break;
6130 case RATE_MCS_CHAN_WIDTH_160:
6131 rinfo->bw = RATE_INFO_BW_160;
6132 break;
6133 case RATE_MCS_CHAN_WIDTH_320:
6134 rinfo->bw = RATE_INFO_BW_320;
6135 break;
6136 }
6137
6138 if (format == RATE_MCS_CCK_MSK ||
6139 format == RATE_MCS_LEGACY_OFDM_MSK) {
6140 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK);
6141
6142 /* add the offset needed to get to the legacy ofdm indices */
6143 if (format == RATE_MCS_LEGACY_OFDM_MSK)
6144 rate += IWL_FIRST_OFDM_RATE;
6145
6146 switch (rate) {
6147 case IWL_RATE_1M_INDEX:
6148 rinfo->legacy = 10;
6149 break;
6150 case IWL_RATE_2M_INDEX:
6151 rinfo->legacy = 20;
6152 break;
6153 case IWL_RATE_5M_INDEX:
6154 rinfo->legacy = 55;
6155 break;
6156 case IWL_RATE_11M_INDEX:
6157 rinfo->legacy = 110;
6158 break;
6159 case IWL_RATE_6M_INDEX:
6160 rinfo->legacy = 60;
6161 break;
6162 case IWL_RATE_9M_INDEX:
6163 rinfo->legacy = 90;
6164 break;
6165 case IWL_RATE_12M_INDEX:
6166 rinfo->legacy = 120;
6167 break;
6168 case IWL_RATE_18M_INDEX:
6169 rinfo->legacy = 180;
6170 break;
6171 case IWL_RATE_24M_INDEX:
6172 rinfo->legacy = 240;
6173 break;
6174 case IWL_RATE_36M_INDEX:
6175 rinfo->legacy = 360;
6176 break;
6177 case IWL_RATE_48M_INDEX:
6178 rinfo->legacy = 480;
6179 break;
6180 case IWL_RATE_54M_INDEX:
6181 rinfo->legacy = 540;
6182 }
6183 return;
6184 }
6185
6186 rinfo->nss = u32_get_bits(rate_n_flags,
6187 RATE_MCS_NSS_MSK) + 1;
6188 rinfo->mcs = format == RATE_MCS_HT_MSK ?
6189 RATE_HT_MCS_INDEX(rate_n_flags) :
6190 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK);
6191
6192 if (rate_n_flags & RATE_MCS_SGI_MSK)
6193 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6194
6195 switch (format) {
6196 case RATE_MCS_EHT_MSK:
6197 /* TODO: GI/LTF/RU. How does the firmware encode them? */
6198 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS;
6199 break;
6200 case RATE_MCS_HE_MSK:
6201 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK);
6202
6203 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS;
6204
6205 if (rate_n_flags & RATE_MCS_HE_106T_MSK) {
6206 rinfo->bw = RATE_INFO_BW_HE_RU;
6207 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106;
6208 }
6209
6210 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) {
6211 case RATE_MCS_HE_TYPE_SU:
6212 case RATE_MCS_HE_TYPE_EXT_SU:
6213 if (gi_ltf == 0 || gi_ltf == 1)
6214 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
6215 else if (gi_ltf == 2)
6216 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
6217 else if (gi_ltf == 3)
6218 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
6219 else
6220 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
6221 break;
6222 case RATE_MCS_HE_TYPE_MU:
6223 if (gi_ltf == 0 || gi_ltf == 1)
6224 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
6225 else if (gi_ltf == 2)
6226 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
6227 else
6228 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
6229 break;
6230 case RATE_MCS_HE_TYPE_TRIG:
6231 if (gi_ltf == 0 || gi_ltf == 1)
6232 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
6233 else
6234 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
6235 break;
6236 }
6237
6238 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK)
6239 rinfo->he_dcm = 1;
6240 break;
6241 case RATE_MCS_HT_MSK:
6242 rinfo->flags |= RATE_INFO_FLAGS_MCS;
6243 break;
6244 case RATE_MCS_VHT_MSK:
6245 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
6246 break;
6247 }
6248 }
6249
6250 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
6251 struct ieee80211_vif *vif,
6252 struct ieee80211_sta *sta,
6253 struct station_info *sinfo)
6254 {
6255 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6256 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6257 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
6258 int i;
6259
6260 if (mvmsta->deflink.avg_energy) {
6261 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy;
6262 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
6263 }
6264
6265 if (iwl_mvm_has_tlc_offload(mvm)) {
6266 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw;
6267
6268 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate);
6269 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
6270 }
6271
6272 /* if beacon filtering isn't on mac80211 does it anyway */
6273 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
6274 return;
6275
6276 if (!vif->cfg.assoc)
6277 return;
6278
6279 guard(mvm)(mvm);
6280
6281 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id)
6282 return;
6283
6284 if (iwl_mvm_request_statistics(mvm, false))
6285 return;
6286
6287 sinfo->rx_beacon = 0;
6288 for_each_mvm_vif_valid_link(mvmvif, i)
6289 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons +
6290 mvmvif->link[i]->beacon_stats.accu_num_beacons;
6291
6292 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX);
6293 if (mvmvif->deflink.beacon_stats.avg_signal) {
6294 /* firmware only reports a value after RXing a few beacons */
6295 sinfo->rx_beacon_signal_avg =
6296 mvmvif->deflink.beacon_stats.avg_signal;
6297 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
6298 }
6299 }
6300
6301 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm,
6302 struct ieee80211_vif *vif,
6303 const struct ieee80211_mlme_event *mlme)
6304 {
6305 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) &&
6306 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) {
6307 iwl_dbg_tlv_time_point(&mvm->fwrt,
6308 IWL_FW_INI_TIME_POINT_ASSOC_FAILED,
6309 NULL);
6310 return;
6311 }
6312
6313 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) {
6314 iwl_dbg_tlv_time_point(&mvm->fwrt,
6315 IWL_FW_INI_TIME_POINT_DEASSOC,
6316 NULL);
6317 return;
6318 }
6319 }
6320
6321 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
6322 struct ieee80211_vif *vif,
6323 const struct ieee80211_event *event)
6324 {
6325 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
6326 do { \
6327 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
6328 break; \
6329 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
6330 } while (0)
6331
6332 struct iwl_fw_dbg_trigger_tlv *trig;
6333 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
6334
6335 if (iwl_trans_dbg_ini_valid(mvm->trans)) {
6336 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme);
6337 return;
6338 }
6339
6340 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
6341 FW_DBG_TRIGGER_MLME);
6342 if (!trig)
6343 return;
6344
6345 trig_mlme = (void *)trig->data;
6346
6347 if (event->u.mlme.data == ASSOC_EVENT) {
6348 if (event->u.mlme.status == MLME_DENIED)
6349 CHECK_MLME_TRIGGER(stop_assoc_denied,
6350 "DENIED ASSOC: reason %d",
6351 event->u.mlme.reason);
6352 else if (event->u.mlme.status == MLME_TIMEOUT)
6353 CHECK_MLME_TRIGGER(stop_assoc_timeout,
6354 "ASSOC TIMEOUT");
6355 } else if (event->u.mlme.data == AUTH_EVENT) {
6356 if (event->u.mlme.status == MLME_DENIED)
6357 CHECK_MLME_TRIGGER(stop_auth_denied,
6358 "DENIED AUTH: reason %d",
6359 event->u.mlme.reason);
6360 else if (event->u.mlme.status == MLME_TIMEOUT)
6361 CHECK_MLME_TRIGGER(stop_auth_timeout,
6362 "AUTH TIMEOUT");
6363 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
6364 CHECK_MLME_TRIGGER(stop_rx_deauth,
6365 "DEAUTH RX %d", event->u.mlme.reason);
6366 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
6367 CHECK_MLME_TRIGGER(stop_tx_deauth,
6368 "DEAUTH TX %d", event->u.mlme.reason);
6369 }
6370 #undef CHECK_MLME_TRIGGER
6371 }
6372
6373 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
6374 struct ieee80211_vif *vif,
6375 const struct ieee80211_event *event)
6376 {
6377 struct iwl_fw_dbg_trigger_tlv *trig;
6378 struct iwl_fw_dbg_trigger_ba *ba_trig;
6379
6380 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
6381 FW_DBG_TRIGGER_BA);
6382 if (!trig)
6383 return;
6384
6385 ba_trig = (void *)trig->data;
6386
6387 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
6388 return;
6389
6390 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
6391 "BAR received from %pM, tid %d, ssn %d",
6392 event->u.ba.sta->addr, event->u.ba.tid,
6393 event->u.ba.ssn);
6394 }
6395
6396 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
6397 struct ieee80211_vif *vif,
6398 const struct ieee80211_event *event)
6399 {
6400 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6401
6402 switch (event->type) {
6403 case MLME_EVENT:
6404 iwl_mvm_event_mlme_callback(mvm, vif, event);
6405 break;
6406 case BAR_RX_EVENT:
6407 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
6408 break;
6409 case BA_FRAME_TIMEOUT:
6410 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,
6411 event->u.ba.tid);
6412 break;
6413 default:
6414 break;
6415 }
6416 }
6417
6418 #define SYNC_RX_QUEUE_TIMEOUT (HZ)
6419 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
6420 enum iwl_mvm_rxq_notif_type type,
6421 bool sync,
6422 const void *data, u32 size)
6423 {
6424 struct {
6425 struct iwl_rxq_sync_cmd cmd;
6426 struct iwl_mvm_internal_rxq_notif notif;
6427 } __packed cmd = {
6428 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1),
6429 .cmd.count =
6430 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) +
6431 size),
6432 .notif.type = type,
6433 .notif.sync = sync,
6434 };
6435 struct iwl_host_cmd hcmd = {
6436 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD),
6437 .data[0] = &cmd,
6438 .len[0] = sizeof(cmd),
6439 .data[1] = data,
6440 .len[1] = size,
6441 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC),
6442 };
6443 int ret;
6444
6445 /* size must be a multiple of DWORD */
6446 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3)))
6447 return;
6448
6449 if (!iwl_mvm_has_new_rx_api(mvm))
6450 return;
6451
6452 if (sync) {
6453 cmd.notif.cookie = mvm->queue_sync_cookie;
6454 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1;
6455 }
6456
6457 ret = iwl_mvm_send_cmd(mvm, &hcmd);
6458 if (ret) {
6459 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
6460 goto out;
6461 }
6462
6463 if (sync) {
6464 lockdep_assert_held(&mvm->mutex);
6465 ret = wait_event_timeout(mvm->rx_sync_waitq,
6466 READ_ONCE(mvm->queue_sync_state) == 0,
6467 SYNC_RX_QUEUE_TIMEOUT);
6468 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx, cookie %d\n",
6469 mvm->queue_sync_state,
6470 mvm->queue_sync_cookie);
6471 }
6472
6473 out:
6474 if (sync) {
6475 mvm->queue_sync_state = 0;
6476 mvm->queue_sync_cookie++;
6477 }
6478 }
6479
6480 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
6481 {
6482 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6483
6484 guard(mvm)(mvm);
6485 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0);
6486 }
6487
6488 int
6489 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw,
6490 struct ieee80211_vif *vif,
6491 struct cfg80211_ftm_responder_stats *stats)
6492 {
6493 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6494 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6495
6496 if (vif->p2p || vif->type != NL80211_IFTYPE_AP ||
6497 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder)
6498 return -EINVAL;
6499
6500 mutex_lock(&mvm->mutex);
6501 *stats = mvm->ftm_resp_stats;
6502 mutex_unlock(&mvm->mutex);
6503
6504 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) |
6505 BIT(NL80211_FTM_STATS_PARTIAL_NUM) |
6506 BIT(NL80211_FTM_STATS_FAILED_NUM) |
6507 BIT(NL80211_FTM_STATS_ASAP_NUM) |
6508 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) |
6509 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) |
6510 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) |
6511 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) |
6512 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM);
6513
6514 return 0;
6515 }
6516
6517 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6518 struct cfg80211_pmsr_request *request)
6519 {
6520 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6521
6522 guard(mvm)(mvm);
6523 return iwl_mvm_ftm_start(mvm, vif, request);
6524 }
6525
6526 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6527 struct cfg80211_pmsr_request *request)
6528 {
6529 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6530
6531 guard(mvm)(mvm);
6532 iwl_mvm_ftm_abort(mvm, request);
6533 }
6534
6535 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb)
6536 {
6537 u8 protocol = ip_hdr(skb)->protocol;
6538
6539 if (!IS_ENABLED(CONFIG_INET))
6540 return false;
6541
6542 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP;
6543 }
6544
6545 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw,
6546 struct sk_buff *head,
6547 struct sk_buff *skb)
6548 {
6549 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6550
6551 /* For now don't aggregate IPv6 in AMSDU */
6552 if (skb->protocol != htons(ETH_P_IP))
6553 return false;
6554
6555 if (!iwl_mvm_is_csum_supported(mvm))
6556 return true;
6557
6558 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head);
6559 }
6560
6561 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw,
6562 struct ieee80211_vif *vif,
6563 struct cfg80211_set_hw_timestamp *hwts)
6564 {
6565 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6566 u32 protocols = 0;
6567
6568 /* HW timestamping is only supported for a specific station */
6569 if (!hwts->macaddr)
6570 return -EOPNOTSUPP;
6571
6572 if (hwts->enable)
6573 protocols =
6574 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM;
6575
6576 guard(mvm)(mvm);
6577 return iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols);
6578 }
6579
6580 const struct ieee80211_ops iwl_mvm_hw_ops = {
6581 .tx = iwl_mvm_mac_tx,
6582 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue,
6583 .ampdu_action = iwl_mvm_mac_ampdu_action,
6584 .get_antenna = iwl_mvm_op_get_antenna,
6585 .set_antenna = iwl_mvm_op_set_antenna,
6586 .start = iwl_mvm_mac_start,
6587 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
6588 .stop = iwl_mvm_mac_stop,
6589 .add_interface = iwl_mvm_mac_add_interface,
6590 .remove_interface = iwl_mvm_mac_remove_interface,
6591 .config = iwl_mvm_mac_config,
6592 .prepare_multicast = iwl_mvm_prepare_multicast,
6593 .configure_filter = iwl_mvm_configure_filter,
6594 .config_iface_filter = iwl_mvm_config_iface_filter,
6595 .bss_info_changed = iwl_mvm_bss_info_changed,
6596 .hw_scan = iwl_mvm_mac_hw_scan,
6597 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
6598 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
6599 .sta_state = iwl_mvm_mac_sta_state,
6600 .sta_notify = iwl_mvm_mac_sta_notify,
6601 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
6602 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
6603 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
6604 .link_sta_rc_update = iwl_mvm_sta_rc_update,
6605 .conf_tx = iwl_mvm_mac_conf_tx,
6606 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
6607 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx,
6608 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
6609 .flush = iwl_mvm_mac_flush,
6610 .flush_sta = iwl_mvm_mac_flush_sta,
6611 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
6612 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
6613 .set_key = iwl_mvm_mac_set_key,
6614 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
6615 .remain_on_channel = iwl_mvm_roc,
6616 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
6617 .add_chanctx = iwl_mvm_add_chanctx,
6618 .remove_chanctx = iwl_mvm_remove_chanctx,
6619 .change_chanctx = iwl_mvm_change_chanctx,
6620 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
6621 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
6622 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
6623
6624 .start_ap = iwl_mvm_start_ap,
6625 .stop_ap = iwl_mvm_stop_ap,
6626 .join_ibss = iwl_mvm_start_ibss,
6627 .leave_ibss = iwl_mvm_stop_ibss,
6628
6629 .tx_last_beacon = iwl_mvm_tx_last_beacon,
6630
6631 .set_tim = iwl_mvm_set_tim,
6632
6633 .channel_switch = iwl_mvm_channel_switch,
6634 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch,
6635 .post_channel_switch = iwl_mvm_post_channel_switch,
6636 .abort_channel_switch = iwl_mvm_abort_channel_switch,
6637 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon,
6638
6639 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
6640 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
6641 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
6642
6643 .event_callback = iwl_mvm_mac_event_callback,
6644
6645 .sync_rx_queues = iwl_mvm_sync_rx_queues,
6646
6647 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
6648
6649 #ifdef CONFIG_PM_SLEEP
6650 /* look at d3.c */
6651 .suspend = iwl_mvm_suspend,
6652 .resume = iwl_mvm_resume,
6653 .set_wakeup = iwl_mvm_set_wakeup,
6654 .set_rekey_data = iwl_mvm_set_rekey_data,
6655 #if IS_ENABLED(CONFIG_IPV6)
6656 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
6657 #endif
6658 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
6659 #endif
6660 .get_survey = iwl_mvm_mac_get_survey,
6661 .sta_statistics = iwl_mvm_mac_sta_statistics,
6662 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats,
6663 .start_pmsr = iwl_mvm_start_pmsr,
6664 .abort_pmsr = iwl_mvm_abort_pmsr,
6665
6666 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate,
6667 #ifdef CONFIG_IWLWIFI_DEBUGFS
6668 .vif_add_debugfs = iwl_mvm_vif_add_debugfs,
6669 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs,
6670 #endif
6671 .set_hw_timestamp = iwl_mvm_set_hw_timestamp,
6672 };
Kernel DRM miscellaneous fixes and cross-tree changes