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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2/*
3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
7#include <linux/kernel.h>
8#include <linux/slab.h>
9#include <linux/skbuff.h>
10#include <linux/netdevice.h>
11#include <linux/etherdevice.h>
12#include <linux/ip.h>
13#include <linux/if_arp.h>
14#include <linux/time.h>
15#include <net/mac80211.h>
16#include <net/ieee80211_radiotap.h>
17#include <net/tcp.h>
18
19#include "iwl-drv.h"
20#include "iwl-op-mode.h"
21#include "iwl-io.h"
22#include "mvm.h"
23#include "sta.h"
24#include "time-event.h"
25#include "iwl-eeprom-parse.h"
26#include "iwl-phy-db.h"
27#include "testmode.h"
28#include "fw/error-dump.h"
29#include "iwl-prph.h"
30#include "iwl-nvm-parse.h"
31#include "time-sync.h"
32
33static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
34 {
35 .max = 1,
36 .types = BIT(NL80211_IFTYPE_STATION),
37 },
38 {
39 .max = 1,
40 .types = BIT(NL80211_IFTYPE_AP) |
41 BIT(NL80211_IFTYPE_P2P_CLIENT) |
42 BIT(NL80211_IFTYPE_P2P_GO),
43 },
44 {
45 .max = 1,
46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
47 },
48};
49
50static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
51 {
52 .num_different_channels = 2,
53 .max_interfaces = 3,
54 .limits = iwl_mvm_limits,
55 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
56 },
57};
58
59static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = {
60 .max_peers = IWL_MVM_TOF_MAX_APS,
61 .report_ap_tsf = 1,
62 .randomize_mac_addr = 1,
63
64 .ftm = {
65 .supported = 1,
66 .asap = 1,
67 .non_asap = 1,
68 .request_lci = 1,
69 .request_civicloc = 1,
70 .trigger_based = 1,
71 .non_trigger_based = 1,
72 .max_bursts_exponent = -1, /* all supported */
73 .max_ftms_per_burst = 0, /* no limits */
74 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
75 BIT(NL80211_CHAN_WIDTH_20) |
76 BIT(NL80211_CHAN_WIDTH_40) |
77 BIT(NL80211_CHAN_WIDTH_80) |
78 BIT(NL80211_CHAN_WIDTH_160),
79 .preambles = BIT(NL80211_PREAMBLE_LEGACY) |
80 BIT(NL80211_PREAMBLE_HT) |
81 BIT(NL80211_PREAMBLE_VHT) |
82 BIT(NL80211_PREAMBLE_HE),
83 },
84};
85
86static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
87 enum set_key_cmd cmd,
88 struct ieee80211_vif *vif,
89 struct ieee80211_sta *sta,
90 struct ieee80211_key_conf *key);
91
92static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
93{
94 int i;
95
96 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
97 for (i = 0; i < NUM_PHY_CTX; i++) {
98 mvm->phy_ctxts[i].id = i;
99 mvm->phy_ctxts[i].ref = 0;
100 }
101}
102
103struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
104 const char *alpha2,
105 enum iwl_mcc_source src_id,
106 bool *changed)
107{
108 struct ieee80211_regdomain *regd = NULL;
109 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
110 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
111 struct iwl_mcc_update_resp_v8 *resp;
112 u8 resp_ver;
113
114 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
115
116 lockdep_assert_held(&mvm->mutex);
117
118 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
119 if (IS_ERR_OR_NULL(resp)) {
120 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
121 PTR_ERR_OR_ZERO(resp));
122 resp = NULL;
123 goto out;
124 }
125
126 if (changed) {
127 u32 status = le32_to_cpu(resp->status);
128
129 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE ||
130 status == MCC_RESP_ILLEGAL);
131 }
132 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP,
133 MCC_UPDATE_CMD, 0);
134 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver);
135
136 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
137 __le32_to_cpu(resp->n_channels),
138 resp->channels,
139 __le16_to_cpu(resp->mcc),
140 __le16_to_cpu(resp->geo_info),
141 le32_to_cpu(resp->cap), resp_ver);
142 /* Store the return source id */
143 src_id = resp->source_id;
144 if (IS_ERR_OR_NULL(regd)) {
145 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
146 PTR_ERR_OR_ZERO(regd));
147 goto out;
148 }
149
150 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
151 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
152 mvm->lar_regdom_set = true;
153 mvm->mcc_src = src_id;
154
155 /* Some kind of regulatory mess means we need to currently disallow
156 * puncturing in the US and Canada. Do that here, at least until we
157 * figure out the new chanctx APIs for puncturing.
158 */
159 if (resp->mcc == cpu_to_le16(IWL_MCC_US) ||
160 resp->mcc == cpu_to_le16(IWL_MCC_CANADA))
161 ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING);
162 else
163 __clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags);
164
165 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc));
166
167out:
168 kfree(resp);
169 return regd;
170}
171
172void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
173{
174 bool changed;
175 struct ieee80211_regdomain *regd;
176
177 if (!iwl_mvm_is_lar_supported(mvm))
178 return;
179
180 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
181 if (!IS_ERR_OR_NULL(regd)) {
182 /* only update the regulatory core if changed */
183 if (changed)
184 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
185
186 kfree(regd);
187 }
188}
189
190struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
191 bool *changed)
192{
193 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
194 iwl_mvm_is_wifi_mcc_supported(mvm) ?
195 MCC_SOURCE_GET_CURRENT :
196 MCC_SOURCE_OLD_FW, changed);
197}
198
199int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync)
200{
201 enum iwl_mcc_source used_src;
202 struct ieee80211_regdomain *regd;
203 int ret;
204 bool changed;
205 const struct ieee80211_regdomain *r =
206 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd);
207
208 if (!r)
209 return -ENOENT;
210
211 /* save the last source in case we overwrite it below */
212 used_src = mvm->mcc_src;
213 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
214 /* Notify the firmware we support wifi location updates */
215 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
216 if (!IS_ERR_OR_NULL(regd))
217 kfree(regd);
218 }
219
220 /* Now set our last stored MCC and source */
221 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
222 &changed);
223 if (IS_ERR_OR_NULL(regd))
224 return -EIO;
225
226 /* update cfg80211 if the regdomain was changed or the caller explicitly
227 * asked to update regdomain
228 */
229 if (changed || force_regd_sync)
230 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd);
231 else
232 ret = 0;
233
234 kfree(regd);
235 return ret;
236}
237
238/* Each capability added here should also be add to tm_if_types_ext_capa_sta */
239static const u8 he_if_types_ext_capa_sta[] = {
240 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
241 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,
242 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
243 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
244 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
245};
246
247static const u8 tm_if_types_ext_capa_sta[] = {
248 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
249 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT |
250 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT,
251 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
252 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
253 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
254 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT,
255};
256
257/* Additional interface types for which extended capabilities are
258 * specified separately
259 */
260
261#define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \
262 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \
263 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \
264 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \
265 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY))
266
267static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = {
268 {
269 .iftype = NL80211_IFTYPE_STATION,
270 .extended_capabilities = he_if_types_ext_capa_sta,
271 .extended_capabilities_mask = he_if_types_ext_capa_sta,
272 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta),
273 /* relevant only if EHT is supported */
274 .eml_capabilities = IWL_MVM_EMLSR_CAPA,
275 },
276 {
277 .iftype = NL80211_IFTYPE_STATION,
278 .extended_capabilities = tm_if_types_ext_capa_sta,
279 .extended_capabilities_mask = tm_if_types_ext_capa_sta,
280 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta),
281 /* relevant only if EHT is supported */
282 .eml_capabilities = IWL_MVM_EMLSR_CAPA,
283 },
284};
285
286int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
287{
288 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
289 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
290 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm);
291 return 0;
292}
293
294int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
295{
296 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
297
298 /* This has been tested on those devices only */
299 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 &&
300 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000)
301 return -EOPNOTSUPP;
302
303 if (!mvm->nvm_data)
304 return -EBUSY;
305
306 /* mac80211 ensures the device is not started,
307 * so the firmware cannot be running
308 */
309
310 mvm->set_tx_ant = tx_ant;
311 mvm->set_rx_ant = rx_ant;
312
313 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw);
314
315 return 0;
316}
317
318int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
319{
320 struct ieee80211_hw *hw = mvm->hw;
321 int num_mac, ret, i;
322 static const u32 mvm_ciphers[] = {
323 WLAN_CIPHER_SUITE_WEP40,
324 WLAN_CIPHER_SUITE_WEP104,
325 WLAN_CIPHER_SUITE_TKIP,
326 WLAN_CIPHER_SUITE_CCMP,
327 };
328#ifdef CONFIG_PM_SLEEP
329 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
330 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
331#endif
332 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);
333 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);
334
335 /* Tell mac80211 our characteristics */
336 ieee80211_hw_set(hw, SIGNAL_DBM);
337 ieee80211_hw_set(hw, SPECTRUM_MGMT);
338 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
339 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
340 ieee80211_hw_set(hw, SUPPORTS_PS);
341 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
342 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
343 ieee80211_hw_set(hw, CONNECTION_MONITOR);
344 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
345 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
346 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
347 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
348 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
349 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
350 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ);
351 ieee80211_hw_set(hw, STA_MMPDU_TXQ);
352
353 /* Set this early since we need to have it for the check below */
354 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable &&
355 !iwlwifi_mod_params.disable_11ax &&
356 !iwlwifi_mod_params.disable_11be)
357 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO;
358
359 /* With MLD FW API, it tracks timing by itself,
360 * no need for any timing from the host
361 */
362 if (!mvm->mld_api_is_used)
363 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
364
365 /* We should probably have this, but mac80211
366 * currently doesn't support it for MLO.
367 */
368 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO))
369 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP);
370
371 /*
372 * On older devices, enabling TX A-MSDU occasionally leads to
373 * something getting messed up, the command read from the FIFO
374 * gets out of sync and isn't a TX command, so that we have an
375 * assert EDC.
376 *
377 * It's not clear where the bug is, but since we didn't used to
378 * support A-MSDU until moving the mac80211 iTXQs, just leave it
379 * for older devices. We also don't see this issue on any newer
380 * devices.
381 */
382 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000)
383 ieee80211_hw_set(hw, TX_AMSDU);
384 ieee80211_hw_set(hw, TX_FRAG_LIST);
385
386 if (iwl_mvm_has_tlc_offload(mvm)) {
387 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
388 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
389 }
390
391 /* We want to use the mac80211's reorder buffer for 9000 */
392 if (iwl_mvm_has_new_rx_api(mvm) &&
393 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000)
394 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
395
396 if (fw_has_capa(&mvm->fw->ucode_capa,
397 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
398 ieee80211_hw_set(hw, AP_LINK_PS);
399 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
400 /*
401 * we absolutely need this for the new TX API since that comes
402 * with many more queues than the current code can deal with
403 * for station powersave
404 */
405 return -EINVAL;
406 }
407
408 if (mvm->trans->num_rx_queues > 1)
409 ieee80211_hw_set(hw, USES_RSS);
410
411 if (mvm->trans->max_skb_frags)
412 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
413
414 hw->queues = IEEE80211_NUM_ACS;
415 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
416 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
417 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
418 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
419 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
420
421 hw->radiotap_timestamp.units_pos =
422 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
423 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
424 /* this is the case for CCK frames, it's better (only 8) for OFDM */
425 hw->radiotap_timestamp.accuracy = 22;
426
427 if (!iwl_mvm_has_tlc_offload(mvm))
428 hw->rate_control_algorithm = RS_NAME;
429
430 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
431 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
432 hw->max_tx_fragments = mvm->trans->max_skb_frags;
433
434 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
435 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
436 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
437 hw->wiphy->cipher_suites = mvm->ciphers;
438
439 if (iwl_mvm_has_new_rx_api(mvm)) {
440 mvm->ciphers[hw->wiphy->n_cipher_suites] =
441 WLAN_CIPHER_SUITE_GCMP;
442 hw->wiphy->n_cipher_suites++;
443 mvm->ciphers[hw->wiphy->n_cipher_suites] =
444 WLAN_CIPHER_SUITE_GCMP_256;
445 hw->wiphy->n_cipher_suites++;
446 }
447
448 if (iwlwifi_mod_params.swcrypto)
449 IWL_ERR(mvm,
450 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n");
451 if (!iwlwifi_mod_params.bt_coex_active)
452 IWL_ERR(mvm,
453 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n");
454
455 ieee80211_hw_set(hw, MFP_CAPABLE);
456 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC;
457 hw->wiphy->n_cipher_suites++;
458 if (iwl_mvm_has_new_rx_api(mvm)) {
459 mvm->ciphers[hw->wiphy->n_cipher_suites] =
460 WLAN_CIPHER_SUITE_BIP_GMAC_128;
461 hw->wiphy->n_cipher_suites++;
462 mvm->ciphers[hw->wiphy->n_cipher_suites] =
463 WLAN_CIPHER_SUITE_BIP_GMAC_256;
464 hw->wiphy->n_cipher_suites++;
465 }
466
467 wiphy_ext_feature_set(hw->wiphy,
468 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
469 wiphy_ext_feature_set(hw->wiphy,
470 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT);
471
472 if (fw_has_capa(&mvm->fw->ucode_capa,
473 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) {
474 wiphy_ext_feature_set(hw->wiphy,
475 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);
476 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa;
477 }
478
479 if (sec_key_ver &&
480 fw_has_capa(&mvm->fw->ucode_capa,
481 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT))
482 wiphy_ext_feature_set(hw->wiphy,
483 NL80211_EXT_FEATURE_BEACON_PROTECTION);
484 else if (fw_has_capa(&mvm->fw->ucode_capa,
485 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT))
486 wiphy_ext_feature_set(hw->wiphy,
487 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT);
488
489 if (fw_has_capa(&mvm->fw->ucode_capa,
490 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM))
491 hw->wiphy->hw_timestamp_max_peers = 1;
492
493 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
494 hw->wiphy->features |=
495 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
496 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
497 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
498
499 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
500 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
501 hw->chanctx_data_size = sizeof(u16);
502 hw->txq_data_size = sizeof(struct iwl_mvm_txq);
503
504 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
505 BIT(NL80211_IFTYPE_P2P_CLIENT) |
506 BIT(NL80211_IFTYPE_AP) |
507 BIT(NL80211_IFTYPE_P2P_GO) |
508 BIT(NL80211_IFTYPE_P2P_DEVICE) |
509 BIT(NL80211_IFTYPE_ADHOC);
510
511 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
512 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
513
514 /* The new Tx API does not allow to pass the key or keyid of a MPDU to
515 * the hw, preventing us to control which key(id) to use per MPDU.
516 * Till that's fixed we can't use Extended Key ID for the newer cards.
517 */
518 if (!iwl_mvm_has_new_tx_api(mvm))
519 wiphy_ext_feature_set(hw->wiphy,
520 NL80211_EXT_FEATURE_EXT_KEY_ID);
521 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS;
522
523 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
524 if (iwl_mvm_is_lar_supported(mvm))
525 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
526 else
527 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
528 REGULATORY_DISABLE_BEACON_HINTS;
529
530 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
531 wiphy_ext_feature_set(hw->wiphy,
532 NL80211_EXT_FEATURE_DFS_CONCURRENT);
533
534 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
535 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
536 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ;
537
538 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
539 hw->wiphy->n_iface_combinations =
540 ARRAY_SIZE(iwl_mvm_iface_combinations);
541
542 hw->wiphy->max_remain_on_channel_duration = 10000;
543 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL;
544
545 /* Extract MAC address */
546 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
547 hw->wiphy->addresses = mvm->addresses;
548 hw->wiphy->n_addresses = 1;
549
550 /* Extract additional MAC addresses if available */
551 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
552 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
553
554 for (i = 1; i < num_mac; i++) {
555 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
556 ETH_ALEN);
557 mvm->addresses[i].addr[5]++;
558 hw->wiphy->n_addresses++;
559 }
560
561 iwl_mvm_reset_phy_ctxts(mvm);
562
563 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
564
565 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
566
567 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
568 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
569 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
570
571 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
572 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
573 else
574 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
575
576 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
577 hw->wiphy->bands[NL80211_BAND_2GHZ] =
578 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
579 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
580 hw->wiphy->bands[NL80211_BAND_5GHZ] =
581 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
582
583 if (fw_has_capa(&mvm->fw->ucode_capa,
584 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
585 fw_has_api(&mvm->fw->ucode_capa,
586 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
587 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
588 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
589 }
590 if (fw_has_capa(&mvm->fw->ucode_capa,
591 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) &&
592 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels)
593 hw->wiphy->bands[NL80211_BAND_6GHZ] =
594 &mvm->nvm_data->bands[NL80211_BAND_6GHZ];
595
596 hw->wiphy->hw_version = mvm->trans->hw_id;
597
598 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
599 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
600 else
601 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
602
603 hw->wiphy->max_sched_scan_reqs = 1;
604 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
605 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw);
606 /* we create the 802.11 header and zero length SSID IE. */
607 hw->wiphy->max_sched_scan_ie_len =
608 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
609 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
610 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
611
612 /*
613 * the firmware uses u8 for num of iterations, but 0xff is saved for
614 * infinite loop, so the maximum number of iterations is actually 254.
615 */
616 hw->wiphy->max_sched_scan_plan_iterations = 254;
617
618 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
619 NL80211_FEATURE_LOW_PRIORITY_SCAN |
620 NL80211_FEATURE_P2P_GO_OPPPS |
621 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
622 NL80211_FEATURE_DYNAMIC_SMPS |
623 NL80211_FEATURE_STATIC_SMPS |
624 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
625
626 if (fw_has_capa(&mvm->fw->ucode_capa,
627 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
628 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
629 if (fw_has_capa(&mvm->fw->ucode_capa,
630 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
631 hw->wiphy->features |= NL80211_FEATURE_QUIET;
632
633 if (fw_has_capa(&mvm->fw->ucode_capa,
634 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
635 hw->wiphy->features |=
636 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
637
638 if (fw_has_capa(&mvm->fw->ucode_capa,
639 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
640 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
641
642 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL,
643 IWL_FW_CMD_VER_UNKNOWN) == 3)
644 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK;
645
646 if (fw_has_api(&mvm->fw->ucode_capa,
647 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
648 wiphy_ext_feature_set(hw->wiphy,
649 NL80211_EXT_FEATURE_SCAN_START_TIME);
650 wiphy_ext_feature_set(hw->wiphy,
651 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
652 }
653
654 if (iwl_mvm_is_oce_supported(mvm)) {
655 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0);
656
657 wiphy_ext_feature_set(hw->wiphy,
658 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP);
659 wiphy_ext_feature_set(hw->wiphy,
660 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME);
661 wiphy_ext_feature_set(hw->wiphy,
662 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE);
663
664 /* Old firmware also supports probe deferral and suppression */
665 if (scan_ver < 15)
666 wiphy_ext_feature_set(hw->wiphy,
667 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION);
668 }
669
670 hw->wiphy->iftype_ext_capab = NULL;
671 hw->wiphy->num_iftype_ext_capab = 0;
672
673 if (mvm->nvm_data->sku_cap_11ax_enable &&
674 !iwlwifi_mod_params.disable_11ax) {
675 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa;
676 hw->wiphy->num_iftype_ext_capab =
677 ARRAY_SIZE(add_iftypes_ext_capa) - 1;
678
679 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
680 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID);
681 }
682
683 if (iwl_fw_lookup_cmd_ver(mvm->fw,
684 WIDE_ID(DATA_PATH_GROUP,
685 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD),
686 IWL_FW_CMD_VER_UNKNOWN) >= 1) {
687 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n");
688
689 if (!hw->wiphy->iftype_ext_capab) {
690 hw->wiphy->num_iftype_ext_capab = 1;
691 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa +
692 ARRAY_SIZE(add_iftypes_ext_capa) - 1;
693 } else {
694 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1;
695 }
696 }
697
698 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
699
700#ifdef CONFIG_PM_SLEEP
701 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) &&
702 mvm->trans->ops->d3_suspend &&
703 mvm->trans->ops->d3_resume &&
704 device_can_wakeup(mvm->trans->dev)) {
705 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
706 WIPHY_WOWLAN_DISCONNECT |
707 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
708 WIPHY_WOWLAN_RFKILL_RELEASE |
709 WIPHY_WOWLAN_NET_DETECT;
710 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
711 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
712 WIPHY_WOWLAN_4WAY_HANDSHAKE;
713
714 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
715 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
716 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
717 mvm->wowlan.max_nd_match_sets =
718 iwl_umac_scan_get_max_profiles(mvm->fw);
719 hw->wiphy->wowlan = &mvm->wowlan;
720 }
721#endif
722
723 ret = iwl_mvm_leds_init(mvm);
724 if (ret)
725 return ret;
726
727 if (fw_has_capa(&mvm->fw->ucode_capa,
728 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
729 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
730 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
731 ieee80211_hw_set(hw, TDLS_WIDER_BW);
732 }
733
734 if (fw_has_capa(&mvm->fw->ucode_capa,
735 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
736 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
737 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
738 }
739
740 hw->netdev_features |= mvm->cfg->features;
741 if (!iwl_mvm_is_csum_supported(mvm))
742 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK;
743
744 if (mvm->cfg->vht_mu_mimo_supported)
745 wiphy_ext_feature_set(hw->wiphy,
746 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
747
748 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT))
749 wiphy_ext_feature_set(hw->wiphy,
750 NL80211_EXT_FEATURE_PROTECTED_TWT);
751
752 iwl_mvm_vendor_cmds_register(mvm);
753
754 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm);
755 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm);
756
757 ret = ieee80211_register_hw(mvm->hw);
758 if (ret) {
759 iwl_mvm_leds_exit(mvm);
760 }
761
762 return ret;
763}
764
765static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
766 struct ieee80211_sta *sta)
767{
768 if (likely(sta)) {
769 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0))
770 return;
771 } else {
772 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0))
773 return;
774 }
775
776 ieee80211_free_txskb(mvm->hw, skb);
777}
778
779void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
780 struct ieee80211_tx_control *control, struct sk_buff *skb)
781{
782 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
783 struct ieee80211_sta *sta = control->sta;
784 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
785 struct ieee80211_hdr *hdr = (void *)skb->data;
786 bool offchannel = IEEE80211_SKB_CB(skb)->flags &
787 IEEE80211_TX_CTL_TX_OFFCHAN;
788 u32 link_id = u32_get_bits(info->control.flags,
789 IEEE80211_TX_CTRL_MLO_LINK);
790 struct ieee80211_sta *tmp_sta = sta;
791
792 if (iwl_mvm_is_radio_killed(mvm)) {
793 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
794 goto drop;
795 }
796
797 if (offchannel &&
798 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
799 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
800 goto drop;
801
802 /*
803 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs
804 * so we treat the others as broadcast
805 */
806 if (ieee80211_is_mgmt(hdr->frame_control))
807 sta = NULL;
808
809 /* If there is no sta, and it's not offchannel - send through AP */
810 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION &&
811 !offchannel) {
812 struct iwl_mvm_vif *mvmvif =
813 iwl_mvm_vif_from_mac80211(info->control.vif);
814 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id);
815
816 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) {
817 /* mac80211 holds rcu read lock */
818 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]);
819 if (IS_ERR_OR_NULL(sta))
820 goto drop;
821 }
822 }
823
824 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED &&
825 !ieee80211_is_probe_resp(hdr->frame_control)) {
826 /* translate MLD addresses to LINK addresses */
827 struct ieee80211_link_sta *link_sta =
828 rcu_dereference(tmp_sta->link[link_id]);
829 struct ieee80211_bss_conf *link_conf =
830 rcu_dereference(info->control.vif->link_conf[link_id]);
831 struct ieee80211_mgmt *mgmt;
832
833 if (WARN_ON(!link_sta || !link_conf))
834 goto drop;
835
836 /* if sta is NULL, the frame is a management frame */
837 mgmt = (void *)hdr;
838 memcpy(mgmt->da, link_sta->addr, ETH_ALEN);
839 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN);
840 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN);
841 }
842
843 iwl_mvm_tx_skb(mvm, skb, sta);
844 return;
845 drop:
846 ieee80211_free_txskb(hw, skb);
847}
848
849void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq)
850{
851 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
852 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
853 struct sk_buff *skb = NULL;
854
855 /*
856 * No need for threads to be pending here, they can leave the first
857 * taker all the work.
858 *
859 * mvmtxq->tx_request logic:
860 *
861 * If 0, no one is currently TXing, set to 1 to indicate current thread
862 * will now start TX and other threads should quit.
863 *
864 * If 1, another thread is currently TXing, set to 2 to indicate to
865 * that thread that there was another request. Since that request may
866 * have raced with the check whether the queue is empty, the TXing
867 * thread should check the queue's status one more time before leaving.
868 * This check is done in order to not leave any TX hanging in the queue
869 * until the next TX invocation (which may not even happen).
870 *
871 * If 2, another thread is currently TXing, and it will already double
872 * check the queue, so do nothing.
873 */
874 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2))
875 return;
876
877 rcu_read_lock();
878 do {
879 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL,
880 &mvmtxq->state) &&
881 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT,
882 &mvmtxq->state) &&
883 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) {
884 skb = ieee80211_tx_dequeue(hw, txq);
885
886 if (!skb) {
887 if (txq->sta)
888 IWL_DEBUG_TX(mvm,
889 "TXQ of sta %pM tid %d is now empty\n",
890 txq->sta->addr,
891 txq->tid);
892 break;
893 }
894
895 iwl_mvm_tx_skb(mvm, skb, txq->sta);
896 }
897 } while (atomic_dec_return(&mvmtxq->tx_request));
898 rcu_read_unlock();
899}
900
901void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw,
902 struct ieee80211_txq *txq)
903{
904 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
905 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
906
907 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) ||
908 !txq->sta) {
909 iwl_mvm_mac_itxq_xmit(hw, txq);
910 return;
911 }
912
913 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker
914 * to handle any packets we leave on the txq now
915 */
916
917 spin_lock_bh(&mvm->add_stream_lock);
918 /* The list is being deleted only after the queue is fully allocated. */
919 if (list_empty(&mvmtxq->list) &&
920 /* recheck under lock */
921 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) {
922 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs);
923 schedule_work(&mvm->add_stream_wk);
924 }
925 spin_unlock_bh(&mvm->add_stream_lock);
926}
927
928#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
929 do { \
930 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
931 break; \
932 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
933 } while (0)
934
935static void
936iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
937 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
938 enum ieee80211_ampdu_mlme_action action)
939{
940 struct iwl_fw_dbg_trigger_tlv *trig;
941 struct iwl_fw_dbg_trigger_ba *ba_trig;
942
943 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
944 FW_DBG_TRIGGER_BA);
945 if (!trig)
946 return;
947
948 ba_trig = (void *)trig->data;
949
950 switch (action) {
951 case IEEE80211_AMPDU_TX_OPERATIONAL: {
952 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
953 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
954
955 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
956 "TX AGG START: MAC %pM tid %d ssn %d\n",
957 sta->addr, tid, tid_data->ssn);
958 break;
959 }
960 case IEEE80211_AMPDU_TX_STOP_CONT:
961 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
962 "TX AGG STOP: MAC %pM tid %d\n",
963 sta->addr, tid);
964 break;
965 case IEEE80211_AMPDU_RX_START:
966 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
967 "RX AGG START: MAC %pM tid %d ssn %d\n",
968 sta->addr, tid, rx_ba_ssn);
969 break;
970 case IEEE80211_AMPDU_RX_STOP:
971 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
972 "RX AGG STOP: MAC %pM tid %d\n",
973 sta->addr, tid);
974 break;
975 default:
976 break;
977 }
978}
979
980int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
981 struct ieee80211_vif *vif,
982 struct ieee80211_ampdu_params *params)
983{
984 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
985 int ret;
986 struct ieee80211_sta *sta = params->sta;
987 enum ieee80211_ampdu_mlme_action action = params->action;
988 u16 tid = params->tid;
989 u16 *ssn = ¶ms->ssn;
990 u16 buf_size = params->buf_size;
991 bool amsdu = params->amsdu;
992 u16 timeout = params->timeout;
993
994 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
995 sta->addr, tid, action);
996
997 if (!(mvm->nvm_data->sku_cap_11n_enable))
998 return -EACCES;
999
1000 mutex_lock(&mvm->mutex);
1001
1002 switch (action) {
1003 case IEEE80211_AMPDU_RX_START:
1004 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id ==
1005 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) {
1006 struct iwl_mvm_vif *mvmvif;
1007 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id;
1008 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid];
1009
1010 mdata->opened_rx_ba_sessions = true;
1011 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1012 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk);
1013 }
1014 if (!iwl_enable_rx_ampdu()) {
1015 ret = -EINVAL;
1016 break;
1017 }
1018 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
1019 timeout);
1020 break;
1021 case IEEE80211_AMPDU_RX_STOP:
1022 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
1023 timeout);
1024 break;
1025 case IEEE80211_AMPDU_TX_START:
1026 if (!iwl_enable_tx_ampdu()) {
1027 ret = -EINVAL;
1028 break;
1029 }
1030 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
1031 break;
1032 case IEEE80211_AMPDU_TX_STOP_CONT:
1033 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
1034 break;
1035 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1036 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1037 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
1038 break;
1039 case IEEE80211_AMPDU_TX_OPERATIONAL:
1040 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
1041 buf_size, amsdu);
1042 break;
1043 default:
1044 WARN_ON_ONCE(1);
1045 ret = -EINVAL;
1046 break;
1047 }
1048
1049 if (!ret) {
1050 u16 rx_ba_ssn = 0;
1051
1052 if (action == IEEE80211_AMPDU_RX_START)
1053 rx_ba_ssn = *ssn;
1054
1055 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1056 rx_ba_ssn, action);
1057 }
1058 mutex_unlock(&mvm->mutex);
1059
1060 return ret;
1061}
1062
1063static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1064 struct ieee80211_vif *vif)
1065{
1066 struct iwl_mvm *mvm = data;
1067 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1068 struct iwl_probe_resp_data *probe_data;
1069 unsigned int link_id;
1070
1071 mvmvif->uploaded = false;
1072
1073 spin_lock_bh(&mvm->time_event_lock);
1074 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1075 spin_unlock_bh(&mvm->time_event_lock);
1076
1077 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
1078 mvmvif->ap_sta = NULL;
1079
1080 for_each_mvm_vif_valid_link(mvmvif, link_id) {
1081 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA;
1082 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID;
1083 mvmvif->link[link_id]->phy_ctxt = NULL;
1084 mvmvif->link[link_id]->active = 0;
1085 mvmvif->link[link_id]->igtk = NULL;
1086 }
1087
1088 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,
1089 lockdep_is_held(&mvm->mutex));
1090 if (probe_data)
1091 kfree_rcu(probe_data, rcu_head);
1092 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);
1093}
1094
1095static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1096{
1097 iwl_mvm_stop_device(mvm);
1098
1099 mvm->cur_aid = 0;
1100
1101 mvm->scan_status = 0;
1102 mvm->ps_disabled = false;
1103 mvm->rfkill_safe_init_done = false;
1104
1105 /* just in case one was running */
1106 iwl_mvm_cleanup_roc_te(mvm);
1107 ieee80211_remain_on_channel_expired(mvm->hw);
1108
1109 iwl_mvm_ftm_restart(mvm);
1110
1111 /*
1112 * cleanup all interfaces, even inactive ones, as some might have
1113 * gone down during the HW restart
1114 */
1115 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
1116
1117 mvm->p2p_device_vif = NULL;
1118
1119 iwl_mvm_reset_phy_ctxts(mvm);
1120 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1121 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1122 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1123
1124 ieee80211_wake_queues(mvm->hw);
1125
1126 mvm->rx_ba_sessions = 0;
1127 mvm->fwrt.dump.conf = FW_DBG_INVALID;
1128 mvm->monitor_on = false;
1129#ifdef CONFIG_IWLWIFI_DEBUGFS
1130 mvm->beacon_inject_active = false;
1131#endif
1132
1133 /* keep statistics ticking */
1134 iwl_mvm_accu_radio_stats(mvm);
1135}
1136
1137int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1138{
1139 int ret;
1140
1141 lockdep_assert_held(&mvm->mutex);
1142
1143 ret = iwl_mvm_mei_get_ownership(mvm);
1144 if (ret)
1145 return ret;
1146
1147 if (mvm->mei_nvm_data) {
1148 /* We got the NIC, we can now free the MEI NVM data */
1149 kfree(mvm->mei_nvm_data);
1150 mvm->mei_nvm_data = NULL;
1151
1152 /*
1153 * We can't free the nvm_data we allocated based on the SAP
1154 * data because we registered to cfg80211 with the channels
1155 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data
1156 * just in order to be able free it later.
1157 * NULLify nvm_data so that we will read the NVM from the
1158 * firmware this time.
1159 */
1160 mvm->temp_nvm_data = mvm->nvm_data;
1161 mvm->nvm_data = NULL;
1162 }
1163
1164 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1165 /*
1166 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1167 * so later code will - from now on - see that we're doing it.
1168 */
1169 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1170 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1171 /* Clean up some internal and mac80211 state on restart */
1172 iwl_mvm_restart_cleanup(mvm);
1173 }
1174 ret = iwl_mvm_up(mvm);
1175
1176 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT,
1177 NULL);
1178 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC,
1179 NULL);
1180
1181 mvm->last_reset_or_resume_time_jiffies = jiffies;
1182
1183 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1184 /* Something went wrong - we need to finish some cleanup
1185 * that normally iwl_mvm_mac_restart_complete() below
1186 * would do.
1187 */
1188 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1189 }
1190
1191 return ret;
1192}
1193
1194int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1195{
1196 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1197 int ret;
1198 int retry, max_retry = 0;
1199
1200 mutex_lock(&mvm->mutex);
1201
1202 /* we are starting the mac not in error flow, and restart is enabled */
1203 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) &&
1204 iwlwifi_mod_params.fw_restart) {
1205 max_retry = IWL_MAX_INIT_RETRY;
1206 /*
1207 * This will prevent mac80211 recovery flows to trigger during
1208 * init failures
1209 */
1210 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1211 }
1212
1213 for (retry = 0; retry <= max_retry; retry++) {
1214 ret = __iwl_mvm_mac_start(mvm);
1215 if (!ret || mvm->pldr_sync)
1216 break;
1217
1218 IWL_ERR(mvm, "mac start retry %d\n", retry);
1219 }
1220 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1221
1222 mutex_unlock(&mvm->mutex);
1223
1224 iwl_mvm_mei_set_sw_rfkill_state(mvm);
1225
1226 return ret;
1227}
1228
1229static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1230{
1231 int ret;
1232
1233 mutex_lock(&mvm->mutex);
1234
1235 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1236
1237 ret = iwl_mvm_update_quotas(mvm, true, NULL);
1238 if (ret)
1239 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1240 ret);
1241
1242 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY);
1243
1244 /*
1245 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1246 * of packets the FW sent out, so we must reconnect.
1247 */
1248 iwl_mvm_teardown_tdls_peers(mvm);
1249
1250 mutex_unlock(&mvm->mutex);
1251}
1252
1253void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1254 enum ieee80211_reconfig_type reconfig_type)
1255{
1256 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1257
1258 switch (reconfig_type) {
1259 case IEEE80211_RECONFIG_TYPE_RESTART:
1260 iwl_mvm_restart_complete(mvm);
1261 break;
1262 case IEEE80211_RECONFIG_TYPE_SUSPEND:
1263 break;
1264 }
1265}
1266
1267void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1268{
1269 lockdep_assert_held(&mvm->mutex);
1270
1271 iwl_mvm_ftm_initiator_smooth_stop(mvm);
1272
1273 /* firmware counters are obviously reset now, but we shouldn't
1274 * partially track so also clear the fw_reset_accu counters.
1275 */
1276 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1277
1278 /* async_handlers_wk is now blocked */
1279
1280 if (!iwl_mvm_has_new_station_api(mvm->fw))
1281 iwl_mvm_rm_aux_sta(mvm);
1282
1283 iwl_mvm_stop_device(mvm);
1284
1285 iwl_mvm_async_handlers_purge(mvm);
1286 /* async_handlers_list is empty and will stay empty: HW is stopped */
1287
1288 /*
1289 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the
1290 * hw (as restart_complete() won't be called in this case) and mac80211
1291 * won't execute the restart.
1292 * But make sure to cleanup interfaces that have gone down before/during
1293 * HW restart was requested.
1294 */
1295 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) ||
1296 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1297 &mvm->status))
1298 ieee80211_iterate_interfaces(mvm->hw, 0,
1299 iwl_mvm_cleanup_iterator, mvm);
1300
1301 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1302 * make sure there's nothing left there and warn if any is found.
1303 */
1304 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1305 int i;
1306
1307 for (i = 0; i < mvm->max_scans; i++) {
1308 if (WARN_ONCE(mvm->scan_uid_status[i],
1309 "UMAC scan UID %d status was not cleaned\n",
1310 i))
1311 mvm->scan_uid_status[i] = 0;
1312 }
1313 }
1314}
1315
1316void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1317{
1318 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1319
1320 flush_work(&mvm->async_handlers_wk);
1321 flush_work(&mvm->add_stream_wk);
1322
1323 /*
1324 * Lock and clear the firmware running bit here already, so that
1325 * new commands coming in elsewhere, e.g. from debugfs, will not
1326 * be able to proceed. This is important here because one of those
1327 * debugfs files causes the firmware dump to be triggered, and if we
1328 * don't stop debugfs accesses before canceling that it could be
1329 * retriggered after we flush it but before we've cleared the bit.
1330 */
1331 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1332
1333 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
1334 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
1335
1336 /*
1337 * The work item could be running or queued if the
1338 * ROC time event stops just as we get here.
1339 */
1340 flush_work(&mvm->roc_done_wk);
1341
1342 iwl_mvm_mei_set_sw_rfkill_state(mvm);
1343
1344 mutex_lock(&mvm->mutex);
1345 __iwl_mvm_mac_stop(mvm);
1346 mutex_unlock(&mvm->mutex);
1347
1348 /*
1349 * The worker might have been waiting for the mutex, let it run and
1350 * discover that its list is now empty.
1351 */
1352 cancel_work_sync(&mvm->async_handlers_wk);
1353}
1354
1355struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1356{
1357 u16 i;
1358
1359 lockdep_assert_held(&mvm->mutex);
1360
1361 for (i = 0; i < NUM_PHY_CTX; i++)
1362 if (!mvm->phy_ctxts[i].ref)
1363 return &mvm->phy_ctxts[i];
1364
1365 IWL_ERR(mvm, "No available PHY context\n");
1366 return NULL;
1367}
1368
1369int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1370 s16 tx_power)
1371{
1372 u32 cmd_id = REDUCE_TX_POWER_CMD;
1373 int len;
1374 struct iwl_dev_tx_power_cmd cmd = {
1375 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1376 .common.mac_context_id =
1377 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1378 .common.pwr_restriction = cpu_to_le16(8 * tx_power),
1379 };
1380 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
1381 IWL_FW_CMD_VER_UNKNOWN);
1382
1383 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1384 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1385
1386 if (cmd_ver == 7)
1387 len = sizeof(cmd.v7);
1388 else if (cmd_ver == 6)
1389 len = sizeof(cmd.v6);
1390 else if (fw_has_api(&mvm->fw->ucode_capa,
1391 IWL_UCODE_TLV_API_REDUCE_TX_POWER))
1392 len = sizeof(cmd.v5);
1393 else if (fw_has_capa(&mvm->fw->ucode_capa,
1394 IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1395 len = sizeof(cmd.v4);
1396 else
1397 len = sizeof(cmd.v3);
1398
1399 /* all structs have the same common part, add it */
1400 len += sizeof(cmd.common);
1401
1402 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd);
1403}
1404
1405int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
1406 struct ieee80211_vif *vif,
1407 struct ieee80211_bss_conf *link_conf)
1408{
1409 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1410 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1411 int ret;
1412
1413 mutex_lock(&mvm->mutex);
1414
1415 if (vif->type == NL80211_IFTYPE_STATION) {
1416 struct iwl_mvm_sta *mvmsta;
1417 unsigned int link_id = link_conf->link_id;
1418 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id;
1419
1420 mvmvif->csa_bcn_pending = false;
1421 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id);
1422
1423 if (WARN_ON(!mvmsta)) {
1424 ret = -EIO;
1425 goto out_unlock;
1426 }
1427
1428 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
1429 if (mvm->mld_api_is_used)
1430 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false);
1431 else
1432 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1433
1434 if (!fw_has_capa(&mvm->fw->ucode_capa,
1435 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
1436 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1437 if (ret)
1438 goto out_unlock;
1439
1440 iwl_mvm_stop_session_protection(mvm, vif);
1441 }
1442 }
1443
1444 mvmvif->ps_disabled = false;
1445
1446 ret = iwl_mvm_power_update_ps(mvm);
1447
1448out_unlock:
1449 if (mvmvif->csa_failed)
1450 ret = -EIO;
1451 mutex_unlock(&mvm->mutex);
1452
1453 return ret;
1454}
1455
1456void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw,
1457 struct ieee80211_vif *vif)
1458{
1459 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1460 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1461 struct iwl_chan_switch_te_cmd cmd = {
1462 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
1463 mvmvif->color)),
1464 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),
1465 };
1466
1467 /*
1468 * In the new flow since FW is in charge of the timing,
1469 * if driver has canceled the channel switch he will receive the
1470 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it
1471 */
1472 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
1473 CHANNEL_SWITCH_ERROR_NOTIF, 0))
1474 return;
1475
1476 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id);
1477
1478 mutex_lock(&mvm->mutex);
1479 if (!fw_has_capa(&mvm->fw->ucode_capa,
1480 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
1481 iwl_mvm_remove_csa_period(mvm, vif);
1482 else
1483 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
1484 WIDE_ID(MAC_CONF_GROUP,
1485 CHANNEL_SWITCH_TIME_EVENT_CMD),
1486 0, sizeof(cmd), &cmd));
1487 mvmvif->csa_failed = true;
1488 mutex_unlock(&mvm->mutex);
1489
1490 /* If we're here, we can't support MLD */
1491 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf);
1492}
1493
1494void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk)
1495{
1496 struct iwl_mvm_vif *mvmvif;
1497 struct ieee80211_vif *vif;
1498
1499 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work);
1500 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1501
1502 /* Trigger disconnect (should clear the CSA state) */
1503 ieee80211_chswitch_done(vif, false, 0);
1504}
1505
1506static u8
1507iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef)
1508{
1509 int data_start;
1510 int control_start;
1511 int bw;
1512
1513 if (chandef->width == NL80211_CHAN_WIDTH_320)
1514 bw = 320;
1515 else if (chandef->width == NL80211_CHAN_WIDTH_160)
1516 bw = 160;
1517 else
1518 return 0;
1519
1520 /* data is bw wide so the start is half the width */
1521 data_start = chandef->center_freq1 - bw / 2;
1522 /* control is 20Mhz width */
1523 control_start = chandef->chan->center_freq - 10;
1524
1525 return (control_start - data_start) / 80;
1526}
1527
1528static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm,
1529 struct ieee80211_vif *vif)
1530{
1531 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1532 int ret;
1533
1534 lockdep_assert_held(&mvm->mutex);
1535
1536 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1537 if (ret) {
1538 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1539 return ret;
1540 }
1541
1542 /* Only queue for this station is the mcast queue,
1543 * which shouldn't be in TFD mask anyway
1544 */
1545 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0,
1546 vif->type,
1547 IWL_STA_MULTICAST);
1548}
1549
1550static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1551 struct ieee80211_vif *vif)
1552{
1553 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1554 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1555 int ret;
1556 int i;
1557
1558 mutex_lock(&mvm->mutex);
1559
1560 mvmvif->mvm = mvm;
1561
1562 /* the first link always points to the default one */
1563 mvmvif->link[0] = &mvmvif->deflink;
1564
1565 /*
1566 * Not much to do here. The stack will not allow interface
1567 * types or combinations that we didn't advertise, so we
1568 * don't really have to check the types.
1569 */
1570
1571 /* make sure that beacon statistics don't go backwards with FW reset */
1572 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1573 for_each_mvm_vif_valid_link(mvmvif, i)
1574 mvmvif->link[i]->beacon_stats.accu_num_beacons +=
1575 mvmvif->link[i]->beacon_stats.num_beacons;
1576
1577 /* Allocate resources for the MAC context, and add it to the fw */
1578 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1579 if (ret)
1580 goto out;
1581
1582 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif);
1583
1584 /* Currently not much to do for NAN */
1585 if (vif->type == NL80211_IFTYPE_NAN) {
1586 ret = 0;
1587 goto out;
1588 }
1589
1590 /*
1591 * The AP binding flow can be done only after the beacon
1592 * template is configured (which happens only in the mac80211
1593 * start_ap() flow), and adding the broadcast station can happen
1594 * only after the binding.
1595 * In addition, since modifying the MAC before adding a bcast
1596 * station is not allowed by the FW, delay the adding of MAC context to
1597 * the point where we can also add the bcast station.
1598 * In short: there's not much we can do at this point, other than
1599 * allocating resources :)
1600 */
1601 if (vif->type == NL80211_IFTYPE_AP ||
1602 vif->type == NL80211_IFTYPE_ADHOC) {
1603 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1604 iwl_mvm_vif_dbgfs_add_link(mvm, vif);
1605 ret = 0;
1606 goto out;
1607 }
1608
1609 mvmvif->features |= hw->netdev_features;
1610
1611 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1612 if (ret)
1613 goto out_unlock;
1614
1615 ret = iwl_mvm_power_update_mac(mvm);
1616 if (ret)
1617 goto out_remove_mac;
1618
1619 /* beacon filtering */
1620 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1621 if (ret)
1622 goto out_remove_mac;
1623
1624 if (!mvm->bf_allowed_vif &&
1625 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1626 mvm->bf_allowed_vif = mvmvif;
1627 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1628 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1629 }
1630
1631 if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
1632 mvm->p2p_device_vif = vif;
1633
1634 iwl_mvm_tcm_add_vif(mvm, vif);
1635 INIT_DELAYED_WORK(&mvmvif->csa_work,
1636 iwl_mvm_channel_switch_disconnect_wk);
1637
1638 if (vif->type == NL80211_IFTYPE_MONITOR) {
1639 mvm->monitor_on = true;
1640 mvm->monitor_p80 =
1641 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef);
1642 }
1643
1644 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1645 iwl_mvm_vif_dbgfs_add_link(mvm, vif);
1646
1647 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
1648 vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1649 !mvm->csme_vif && mvm->mei_registered) {
1650 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr);
1651 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev);
1652 mvm->csme_vif = vif;
1653 }
1654
1655out:
1656 if (!ret && (vif->type == NL80211_IFTYPE_AP ||
1657 vif->type == NL80211_IFTYPE_ADHOC))
1658 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif);
1659
1660 goto out_unlock;
1661
1662 out_remove_mac:
1663 mvmvif->deflink.phy_ctxt = NULL;
1664 iwl_mvm_mac_ctxt_remove(mvm, vif);
1665 out_unlock:
1666 mutex_unlock(&mvm->mutex);
1667
1668 return ret;
1669}
1670
1671void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1672 struct ieee80211_vif *vif)
1673{
1674 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1675 /*
1676 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1677 * We assume here that all the packets sent to the OFFCHANNEL
1678 * queue are sent in ROC session.
1679 */
1680 flush_work(&mvm->roc_done_wk);
1681 }
1682}
1683
1684/* This function is doing the common part of removing the interface for
1685 * both - MLD and non-MLD modes. Returns true if removing the interface
1686 * is done
1687 */
1688static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw,
1689 struct ieee80211_vif *vif)
1690{
1691 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1692 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1693 struct iwl_probe_resp_data *probe_data;
1694
1695 iwl_mvm_prepare_mac_removal(mvm, vif);
1696
1697 if (!(vif->type == NL80211_IFTYPE_AP ||
1698 vif->type == NL80211_IFTYPE_ADHOC))
1699 iwl_mvm_tcm_rm_vif(mvm, vif);
1700
1701 mutex_lock(&mvm->mutex);
1702
1703 if (vif == mvm->csme_vif) {
1704 iwl_mei_set_netdev(NULL);
1705 mvm->csme_vif = NULL;
1706 }
1707
1708 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,
1709 lockdep_is_held(&mvm->mutex));
1710 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);
1711 if (probe_data)
1712 kfree_rcu(probe_data, rcu_head);
1713
1714 if (mvm->bf_allowed_vif == mvmvif) {
1715 mvm->bf_allowed_vif = NULL;
1716 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1717 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1718 }
1719
1720 if (vif->bss_conf.ftm_responder)
1721 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats));
1722
1723 iwl_mvm_vif_dbgfs_rm_link(mvm, vif);
1724
1725 /*
1726 * For AP/GO interface, the tear down of the resources allocated to the
1727 * interface is be handled as part of the stop_ap flow.
1728 */
1729 if (vif->type == NL80211_IFTYPE_AP ||
1730 vif->type == NL80211_IFTYPE_ADHOC) {
1731#ifdef CONFIG_NL80211_TESTMODE
1732 if (vif == mvm->noa_vif) {
1733 mvm->noa_vif = NULL;
1734 mvm->noa_duration = 0;
1735 }
1736#endif
1737 return true;
1738 }
1739
1740 iwl_mvm_power_update_mac(mvm);
1741 return false;
1742}
1743
1744static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1745 struct ieee80211_vif *vif)
1746{
1747 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1748 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1749
1750 if (iwl_mvm_mac_remove_interface_common(hw, vif))
1751 goto out;
1752
1753 /* Before the interface removal, mac80211 would cancel the ROC, and the
1754 * ROC worker would be scheduled if needed. The worker would be flushed
1755 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no
1756 * binding etc. so nothing needs to be done here.
1757 */
1758 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1759 if (mvmvif->deflink.phy_ctxt) {
1760 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);
1761 mvmvif->deflink.phy_ctxt = NULL;
1762 }
1763 mvm->p2p_device_vif = NULL;
1764 }
1765
1766 iwl_mvm_mac_ctxt_remove(mvm, vif);
1767
1768 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL);
1769
1770 if (vif->type == NL80211_IFTYPE_MONITOR)
1771 mvm->monitor_on = false;
1772
1773out:
1774 if (vif->type == NL80211_IFTYPE_AP ||
1775 vif->type == NL80211_IFTYPE_ADHOC) {
1776 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta);
1777 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1778 }
1779
1780 mutex_unlock(&mvm->mutex);
1781}
1782
1783struct iwl_mvm_mc_iter_data {
1784 struct iwl_mvm *mvm;
1785 int port_id;
1786};
1787
1788static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1789 struct ieee80211_vif *vif)
1790{
1791 struct iwl_mvm_mc_iter_data *data = _data;
1792 struct iwl_mvm *mvm = data->mvm;
1793 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1794 struct iwl_host_cmd hcmd = {
1795 .id = MCAST_FILTER_CMD,
1796 .flags = CMD_ASYNC,
1797 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1798 };
1799 int ret, len;
1800
1801 /* if we don't have free ports, mcast frames will be dropped */
1802 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1803 return;
1804
1805 if (vif->type != NL80211_IFTYPE_STATION ||
1806 !vif->cfg.assoc)
1807 return;
1808
1809 cmd->port_id = data->port_id++;
1810 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1811 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1812
1813 hcmd.len[0] = len;
1814 hcmd.data[0] = cmd;
1815
1816 ret = iwl_mvm_send_cmd(mvm, &hcmd);
1817 if (ret)
1818 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1819}
1820
1821static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1822{
1823 struct iwl_mvm_mc_iter_data iter_data = {
1824 .mvm = mvm,
1825 };
1826 int ret;
1827
1828 lockdep_assert_held(&mvm->mutex);
1829
1830 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1831 return;
1832
1833 ieee80211_iterate_active_interfaces_atomic(
1834 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1835 iwl_mvm_mc_iface_iterator, &iter_data);
1836
1837 /*
1838 * Send a (synchronous) ech command so that we wait for the
1839 * multiple asynchronous MCAST_FILTER_CMD commands sent by
1840 * the interface iterator. Otherwise, we might get here over
1841 * and over again (by userspace just sending a lot of these)
1842 * and the CPU can send them faster than the firmware can
1843 * process them.
1844 * Note that the CPU is still faster - but with this we'll
1845 * actually send fewer commands overall because the CPU will
1846 * not schedule the work in mac80211 as frequently if it's
1847 * still running when rescheduled (possibly multiple times).
1848 */
1849 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1850 if (ret)
1851 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n");
1852}
1853
1854u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1855 struct netdev_hw_addr_list *mc_list)
1856{
1857 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1858 struct iwl_mcast_filter_cmd *cmd;
1859 struct netdev_hw_addr *addr;
1860 int addr_count;
1861 bool pass_all;
1862 int len;
1863
1864 addr_count = netdev_hw_addr_list_count(mc_list);
1865 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1866 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1867 if (pass_all)
1868 addr_count = 0;
1869
1870 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1871 cmd = kzalloc(len, GFP_ATOMIC);
1872 if (!cmd)
1873 return 0;
1874
1875 if (pass_all) {
1876 cmd->pass_all = 1;
1877 return (u64)(unsigned long)cmd;
1878 }
1879
1880 netdev_hw_addr_list_for_each(addr, mc_list) {
1881 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1882 cmd->count, addr->addr);
1883 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1884 addr->addr, ETH_ALEN);
1885 cmd->count++;
1886 }
1887
1888 return (u64)(unsigned long)cmd;
1889}
1890
1891void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1892 unsigned int changed_flags,
1893 unsigned int *total_flags, u64 multicast)
1894{
1895 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1896 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1897
1898 mutex_lock(&mvm->mutex);
1899
1900 /* replace previous configuration */
1901 kfree(mvm->mcast_filter_cmd);
1902 mvm->mcast_filter_cmd = cmd;
1903
1904 if (!cmd)
1905 goto out;
1906
1907 if (changed_flags & FIF_ALLMULTI)
1908 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
1909
1910 if (cmd->pass_all)
1911 cmd->count = 0;
1912
1913 iwl_mvm_recalc_multicast(mvm);
1914out:
1915 mutex_unlock(&mvm->mutex);
1916 *total_flags = 0;
1917}
1918
1919static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1920 struct ieee80211_vif *vif,
1921 unsigned int filter_flags,
1922 unsigned int changed_flags)
1923{
1924 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1925
1926 /* We support only filter for probe requests */
1927 if (!(changed_flags & FIF_PROBE_REQ))
1928 return;
1929
1930 /* Supported only for p2p client interfaces */
1931 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc ||
1932 !vif->p2p)
1933 return;
1934
1935 mutex_lock(&mvm->mutex);
1936 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1937 mutex_unlock(&mvm->mutex);
1938}
1939
1940int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1941{
1942 struct iwl_mu_group_mgmt_cmd cmd = {};
1943
1944 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1945 WLAN_MEMBERSHIP_LEN);
1946 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1947 WLAN_USER_POSITION_LEN);
1948
1949 return iwl_mvm_send_cmd_pdu(mvm,
1950 WIDE_ID(DATA_PATH_GROUP,
1951 UPDATE_MU_GROUPS_CMD),
1952 0, sizeof(cmd), &cmd);
1953}
1954
1955static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1956 struct ieee80211_vif *vif)
1957{
1958 if (vif->bss_conf.mu_mimo_owner) {
1959 struct iwl_mu_group_mgmt_notif *notif = _data;
1960
1961 /*
1962 * MU-MIMO Group Id action frame is little endian. We treat
1963 * the data received from firmware as if it came from the
1964 * action frame, so no conversion is needed.
1965 */
1966 ieee80211_update_mu_groups(vif, 0,
1967 (u8 *)¬if->membership_status,
1968 (u8 *)¬if->user_position);
1969 }
1970}
1971
1972void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1973 struct iwl_rx_cmd_buffer *rxb)
1974{
1975 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1976 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1977
1978 ieee80211_iterate_active_interfaces_atomic(
1979 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1980 iwl_mvm_mu_mimo_iface_iterator, notif);
1981}
1982
1983static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit)
1984{
1985 u8 byte_num = ppe_pos_bit / 8;
1986 u8 bit_num = ppe_pos_bit % 8;
1987 u8 residue_bits;
1988 u8 res;
1989
1990 if (bit_num <= 5)
1991 return (ppe[byte_num] >> bit_num) &
1992 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1);
1993
1994 /*
1995 * If bit_num > 5, we have to combine bits with next byte.
1996 * Calculate how many bits we need to take from current byte (called
1997 * here "residue_bits"), and add them to bits from next byte.
1998 */
1999
2000 residue_bits = 8 - bit_num;
2001
2002 res = (ppe[byte_num + 1] &
2003 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) <<
2004 residue_bits;
2005 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1);
2006
2007 return res;
2008}
2009
2010static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm,
2011 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss,
2012 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit,
2013 bool inheritance)
2014{
2015 int i;
2016
2017 /*
2018 * FW currently supports only nss == MAX_HE_SUPP_NSS
2019 *
2020 * If nss > MAX: we can ignore values we don't support
2021 * If nss < MAX: we can set zeros in other streams
2022 */
2023 if (nss > MAX_HE_SUPP_NSS) {
2024 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,
2025 MAX_HE_SUPP_NSS);
2026 nss = MAX_HE_SUPP_NSS;
2027 }
2028
2029 for (i = 0; i < nss; i++) {
2030 u8 ru_index_tmp = ru_index_bitmap << 1;
2031 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE;
2032 u8 bw;
2033
2034 for (bw = 0;
2035 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2036 bw++) {
2037 ru_index_tmp >>= 1;
2038
2039 /*
2040 * According to the 11be spec, if for a specific BW the PPE Thresholds
2041 * isn't present - it should inherit the thresholds from the last
2042 * BW for which we had PPE Thresholds. In 11ax though, we don't have
2043 * this inheritance - continue in this case
2044 */
2045 if (!(ru_index_tmp & 1)) {
2046 if (inheritance)
2047 goto set_thresholds;
2048 else
2049 continue;
2050 }
2051
2052 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
2053 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2054 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
2055 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2056
2057set_thresholds:
2058 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
2059 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
2060 }
2061 }
2062}
2063
2064static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm,
2065 struct ieee80211_link_sta *link_sta,
2066 struct iwl_he_pkt_ext_v2 *pkt_ext,
2067 bool inheritance)
2068{
2069 u8 nss = (link_sta->he_cap.ppe_thres[0] &
2070 IEEE80211_PPE_THRES_NSS_MASK) + 1;
2071 u8 *ppe = &link_sta->he_cap.ppe_thres[0];
2072 u8 ru_index_bitmap =
2073 u8_get_bits(*ppe,
2074 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
2075 /* Starting after PPE header */
2076 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE;
2077
2078 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit,
2079 inheritance);
2080}
2081
2082static int
2083iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext,
2084 u8 nominal_padding)
2085{
2086 int low_th = -1;
2087 int high_th = -1;
2088 int i;
2089
2090 /* all the macros are the same for EHT and HE */
2091 switch (nominal_padding) {
2092 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US:
2093 low_th = IWL_HE_PKT_EXT_NONE;
2094 high_th = IWL_HE_PKT_EXT_NONE;
2095 break;
2096 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US:
2097 low_th = IWL_HE_PKT_EXT_BPSK;
2098 high_th = IWL_HE_PKT_EXT_NONE;
2099 break;
2100 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US:
2101 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US:
2102 low_th = IWL_HE_PKT_EXT_NONE;
2103 high_th = IWL_HE_PKT_EXT_BPSK;
2104 break;
2105 }
2106
2107 if (low_th < 0 || high_th < 0)
2108 return -EINVAL;
2109
2110 /* Set the PPE thresholds accordingly */
2111 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2112 u8 bw;
2113
2114 for (bw = 0;
2115 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2116 bw++) {
2117 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
2118 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
2119 }
2120 }
2121
2122 return 0;
2123}
2124
2125static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext,
2126 u8 nominal_padding)
2127{
2128 int i;
2129
2130 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2131 u8 bw;
2132
2133 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2134 bw++) {
2135 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0];
2136
2137 if (nominal_padding >
2138 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&
2139 qam_th[1] == IWL_HE_PKT_EXT_NONE)
2140 qam_th[1] = IWL_HE_PKT_EXT_4096QAM;
2141 else if (nominal_padding ==
2142 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&
2143 qam_th[0] == IWL_HE_PKT_EXT_NONE &&
2144 qam_th[1] == IWL_HE_PKT_EXT_NONE)
2145 qam_th[0] = IWL_HE_PKT_EXT_4096QAM;
2146 }
2147 }
2148}
2149
2150/* Set the pkt_ext field according to PPE Thresholds element */
2151int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm,
2152 struct ieee80211_link_sta *link_sta,
2153 struct iwl_he_pkt_ext_v2 *pkt_ext)
2154{
2155 u8 nominal_padding;
2156 int i, ret = 0;
2157
2158 if (WARN_ON(!link_sta))
2159 return -EINVAL;
2160
2161 /* Initialize the PPE thresholds to "None" (7), as described in Table
2162 * 9-262ac of 80211.ax/D3.0.
2163 */
2164 memset(pkt_ext, IWL_HE_PKT_EXT_NONE,
2165 sizeof(struct iwl_he_pkt_ext_v2));
2166
2167 if (link_sta->eht_cap.has_eht) {
2168 nominal_padding =
2169 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5],
2170 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK);
2171
2172 /* If PPE Thresholds exists, parse them into a FW-familiar
2173 * format.
2174 */
2175 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] &
2176 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
2177 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] &
2178 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1;
2179 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0];
2180 u8 ru_index_bitmap =
2181 u16_get_bits(*ppe,
2182 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);
2183 /* Starting after PPE header */
2184 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;
2185
2186 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap,
2187 ppe, ppe_pos_bit, true);
2188 /* EHT PPE Thresholds doesn't exist - set the API according to
2189 * HE PPE Tresholds
2190 */
2191 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &
2192 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2193 /* Even though HE Capabilities IE doesn't contain PPE
2194 * Thresholds for BW 320Mhz, thresholds for this BW will
2195 * be filled in with the same values as 160Mhz, due to
2196 * the inheritance, as required.
2197 */
2198 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,
2199 true);
2200
2201 /* According to the requirements, for MCSs 12-13 the
2202 * maximum value between HE PPE Threshold and Common
2203 * Nominal Packet Padding needs to be taken
2204 */
2205 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding);
2206
2207 /* if PPE Thresholds doesn't present in both EHT IE and HE IE -
2208 * take the Thresholds from Common Nominal Packet Padding field
2209 */
2210 } else {
2211 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,
2212 nominal_padding);
2213 }
2214 } else if (link_sta->he_cap.has_he) {
2215 /* If PPE Thresholds exist, parse them into a FW-familiar format. */
2216 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &
2217 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2218 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,
2219 false);
2220 /* PPE Thresholds doesn't exist - set the API PPE values
2221 * according to Common Nominal Packet Padding field.
2222 */
2223 } else {
2224 nominal_padding =
2225 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9],
2226 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK);
2227 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED)
2228 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,
2229 nominal_padding);
2230 }
2231 }
2232
2233 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2234 int bw;
2235
2236 for (bw = 0;
2237 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]);
2238 bw++) {
2239 u8 *qam_th =
2240 &pkt_ext->pkt_ext_qam_th[i][bw][0];
2241
2242 IWL_DEBUG_HT(mvm,
2243 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n",
2244 i, bw, qam_th[0], qam_th[1]);
2245 }
2246 }
2247 return ret;
2248}
2249
2250/*
2251 * This function sets the MU EDCA parameters ans returns whether MU EDCA
2252 * is enabled or not
2253 */
2254bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm,
2255 const struct iwl_mvm_vif_link_info *link_info,
2256 struct iwl_he_backoff_conf *trig_based_txf)
2257{
2258 int i;
2259 /* Mark MU EDCA as enabled, unless none detected on some AC */
2260 bool mu_edca_enabled = true;
2261
2262 for (i = 0; i < IEEE80211_NUM_ACS; i++) {
2263 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca =
2264 &link_info->queue_params[i].mu_edca_param_rec;
2265 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i);
2266
2267 if (!link_info->queue_params[i].mu_edca) {
2268 mu_edca_enabled = false;
2269 break;
2270 }
2271
2272 trig_based_txf[ac].cwmin =
2273 cpu_to_le16(mu_edca->ecw_min_max & 0xf);
2274 trig_based_txf[ac].cwmax =
2275 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4);
2276 trig_based_txf[ac].aifsn =
2277 cpu_to_le16(mu_edca->aifsn & 0xf);
2278 trig_based_txf[ac].mu_time =
2279 cpu_to_le16(mu_edca->mu_edca_timer);
2280 }
2281
2282 return mu_edca_enabled;
2283}
2284
2285bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2286{
2287 const struct ieee80211_supported_band *sband;
2288 const struct ieee80211_sta_he_cap *own_he_cap = NULL;
2289
2290 /* This capability is the same for all bands,
2291 * so take it from one of them.
2292 */
2293 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
2294 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
2295
2296 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] &
2297 IEEE80211_HE_MAC_CAP2_ACK_EN));
2298}
2299
2300__le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta,
2301 struct ieee80211_link_sta *link_sta)
2302{
2303 u8 *mac_cap_info =
2304 &link_sta->he_cap.he_cap_elem.mac_cap_info[0];
2305 __le32 htc_flags = 0;
2306
2307 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE)
2308 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT);
2309 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) ||
2310 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) {
2311 u8 link_adap =
2312 ((mac_cap_info[2] &
2313 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) +
2314 (mac_cap_info[1] &
2315 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION);
2316
2317 if (link_adap == 2)
2318 htc_flags |=
2319 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED);
2320 else if (link_adap == 3)
2321 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH);
2322 }
2323 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR)
2324 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP);
2325 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL)
2326 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP);
2327 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR)
2328 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP);
2329
2330 return htc_flags;
2331}
2332
2333static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm,
2334 struct ieee80211_vif *vif, u8 sta_id)
2335{
2336 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2337 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = {
2338 .sta_id = sta_id,
2339 .tid_limit = IWL_MAX_TID_COUNT,
2340 .bss_color = vif->bss_conf.he_bss_color.color,
2341 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext,
2342 .frame_time_rts_th =
2343 cpu_to_le16(vif->bss_conf.frame_time_rts_th),
2344 };
2345 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {};
2346 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD);
2347 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2);
2348 int size;
2349 struct ieee80211_sta *sta;
2350 u32 flags;
2351 int i;
2352 void *cmd;
2353
2354 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE))
2355 ver = 1;
2356
2357 switch (ver) {
2358 case 1:
2359 /* same layout as v2 except some data at the end */
2360 cmd = &sta_ctxt_cmd_v2;
2361 size = sizeof(struct iwl_he_sta_context_cmd_v1);
2362 break;
2363 case 2:
2364 cmd = &sta_ctxt_cmd_v2;
2365 size = sizeof(struct iwl_he_sta_context_cmd_v2);
2366 break;
2367 case 3:
2368 cmd = &sta_ctxt_cmd;
2369 size = sizeof(struct iwl_he_sta_context_cmd_v3);
2370 break;
2371 default:
2372 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver);
2373 return;
2374 }
2375
2376 rcu_read_lock();
2377
2378 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]);
2379 if (IS_ERR_OR_NULL(sta)) {
2380 rcu_read_unlock();
2381 WARN(1, "Can't find STA to configure HE\n");
2382 return;
2383 }
2384
2385 if (!sta->deflink.he_cap.has_he) {
2386 rcu_read_unlock();
2387 return;
2388 }
2389
2390 flags = 0;
2391
2392 /* Block 26-tone RU OFDMA transmissions */
2393 if (mvmvif->deflink.he_ru_2mhz_block)
2394 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK;
2395
2396 /* HTC flags */
2397 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink);
2398
2399 /* PPE Thresholds */
2400 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext))
2401 flags |= STA_CTXT_HE_PACKET_EXT;
2402
2403 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2404 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP)
2405 flags |= STA_CTXT_HE_32BIT_BA_BITMAP;
2406
2407 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2408 IEEE80211_HE_MAC_CAP2_ACK_EN)
2409 flags |= STA_CTXT_HE_ACK_ENABLED;
2410
2411 rcu_read_unlock();
2412
2413 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink,
2414 &sta_ctxt_cmd.trig_based_txf[0]))
2415 flags |= STA_CTXT_HE_MU_EDCA_CW;
2416
2417 if (vif->bss_conf.uora_exists) {
2418 flags |= STA_CTXT_HE_TRIG_RND_ALLOC;
2419
2420 sta_ctxt_cmd.rand_alloc_ecwmin =
2421 vif->bss_conf.uora_ocw_range & 0x7;
2422 sta_ctxt_cmd.rand_alloc_ecwmax =
2423 (vif->bss_conf.uora_ocw_range >> 3) & 0x7;
2424 }
2425
2426 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif))
2427 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED;
2428
2429 if (vif->bss_conf.nontransmitted) {
2430 flags |= STA_CTXT_HE_REF_BSSID_VALID;
2431 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr,
2432 vif->bss_conf.transmitter_bssid);
2433 sta_ctxt_cmd.max_bssid_indicator =
2434 vif->bss_conf.bssid_indicator;
2435 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index;
2436 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap;
2437 sta_ctxt_cmd.profile_periodicity =
2438 vif->bss_conf.profile_periodicity;
2439 }
2440
2441 sta_ctxt_cmd.flags = cpu_to_le32(flags);
2442
2443 if (ver < 3) {
2444 /* fields before pkt_ext */
2445 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) !=
2446 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext));
2447 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd,
2448 offsetof(typeof(sta_ctxt_cmd), pkt_ext));
2449
2450 /* pkt_ext */
2451 for (i = 0;
2452 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th);
2453 i++) {
2454 u8 bw;
2455
2456 for (bw = 0;
2457 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]);
2458 bw++) {
2459 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) !=
2460 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw]));
2461
2462 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw],
2463 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw],
2464 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]));
2465 }
2466 }
2467
2468 /* fields after pkt_ext */
2469 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) -
2470 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) !=
2471 sizeof(sta_ctxt_cmd_v2) -
2472 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext));
2473 memcpy((u8 *)&sta_ctxt_cmd_v2 +
2474 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext),
2475 (u8 *)&sta_ctxt_cmd +
2476 offsetofend(typeof(sta_ctxt_cmd), pkt_ext),
2477 sizeof(sta_ctxt_cmd) -
2478 offsetofend(typeof(sta_ctxt_cmd), pkt_ext));
2479 sta_ctxt_cmd_v2.reserved3 = 0;
2480 }
2481
2482 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd))
2483 IWL_ERR(mvm, "Failed to config FW to work HE!\n");
2484}
2485
2486void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2487 u32 duration_override, unsigned int link_id)
2488{
2489 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2490 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
2491
2492 if (duration_override > duration)
2493 duration = duration_override;
2494
2495 /* Try really hard to protect the session and hear a beacon
2496 * The new session protection command allows us to protect the
2497 * session for a much longer time since the firmware will internally
2498 * create two events: a 300TU one with a very high priority that
2499 * won't be fragmented which should be enough for 99% of the cases,
2500 * and another one (which we configure here to be 900TU long) which
2501 * will have a slightly lower priority, but more importantly, can be
2502 * fragmented so that it'll allow other activities to run.
2503 */
2504 if (fw_has_capa(&mvm->fw->ucode_capa,
2505 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD))
2506 iwl_mvm_schedule_session_protection(mvm, vif, 900,
2507 min_duration, false,
2508 link_id);
2509 else
2510 iwl_mvm_protect_session(mvm, vif, duration,
2511 min_duration, 500, false);
2512}
2513
2514/* Handle association common part to MLD and non-MLD modes */
2515void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm,
2516 struct ieee80211_vif *vif,
2517 u64 changes)
2518{
2519 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2520 int ret;
2521
2522 /* The firmware tracks the MU-MIMO group on its own.
2523 * However, on HW restart we should restore this data.
2524 */
2525 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2526 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) {
2527 ret = iwl_mvm_update_mu_groups(mvm, vif);
2528 if (ret)
2529 IWL_ERR(mvm,
2530 "failed to update VHT MU_MIMO groups\n");
2531 }
2532
2533 iwl_mvm_recalc_multicast(mvm);
2534
2535 /* reset rssi values */
2536 mvmvif->bf_data.ave_beacon_signal = 0;
2537
2538 iwl_mvm_bt_coex_vif_change(mvm);
2539 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2540 IEEE80211_SMPS_AUTOMATIC);
2541 if (fw_has_capa(&mvm->fw->ucode_capa,
2542 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2543 iwl_mvm_config_scan(mvm);
2544}
2545
2546/* Execute the common part for MLD and non-MLD modes */
2547void
2548iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm,
2549 struct ieee80211_vif *vif,
2550 struct ieee80211_bss_conf *link_conf,
2551 u64 changes)
2552{
2553 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2554 int ret;
2555
2556 if (changes & BSS_CHANGED_BEACON_INFO) {
2557 /* We received a beacon from the associated AP so
2558 * remove the session protection.
2559 */
2560 iwl_mvm_stop_session_protection(mvm, vif);
2561
2562 iwl_mvm_sf_update(mvm, vif, false);
2563 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2564 }
2565
2566 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2567 /* Send power command on every beacon change,
2568 * because we may have not enabled beacon abort yet.
2569 */
2570 BSS_CHANGED_BEACON_INFO)) {
2571 ret = iwl_mvm_power_update_mac(mvm);
2572 if (ret)
2573 IWL_ERR(mvm, "failed to update power mode\n");
2574 }
2575
2576 if (changes & BSS_CHANGED_CQM) {
2577 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
2578 /* reset cqm events tracking */
2579 mvmvif->bf_data.last_cqm_event = 0;
2580 if (mvmvif->bf_data.bf_enabled) {
2581 /* FIXME: need to update per link when FW API will
2582 * support it
2583 */
2584 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2585 if (ret)
2586 IWL_ERR(mvm,
2587 "failed to update CQM thresholds\n");
2588 }
2589 }
2590
2591 if (changes & BSS_CHANGED_BANDWIDTH)
2592 iwl_mvm_update_link_smps(vif, link_conf);
2593}
2594
2595static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2596 struct ieee80211_vif *vif,
2597 struct ieee80211_bss_conf *bss_conf,
2598 u64 changes)
2599{
2600 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2601 int ret;
2602 int i;
2603
2604 /*
2605 * Re-calculate the tsf id, as the leader-follower relations depend
2606 * on the beacon interval, which was not known when the station
2607 * interface was added.
2608 */
2609 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) {
2610 if ((vif->bss_conf.he_support &&
2611 !iwlwifi_mod_params.disable_11ax) ||
2612 (vif->bss_conf.eht_support &&
2613 !iwlwifi_mod_params.disable_11be))
2614 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);
2615
2616 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2617 }
2618
2619 /* Update MU EDCA params */
2620 if (changes & BSS_CHANGED_QOS && mvmvif->associated &&
2621 vif->cfg.assoc &&
2622 ((vif->bss_conf.he_support &&
2623 !iwlwifi_mod_params.disable_11ax) ||
2624 (vif->bss_conf.eht_support &&
2625 !iwlwifi_mod_params.disable_11be)))
2626 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);
2627
2628 /*
2629 * If we're not associated yet, take the (new) BSSID before associating
2630 * so the firmware knows. If we're already associated, then use the old
2631 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2632 * branch for disassociation below.
2633 */
2634 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2635 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);
2636
2637 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid);
2638 if (ret)
2639 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2640
2641 /* after sending it once, adopt mac80211 data */
2642 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);
2643 mvmvif->associated = vif->cfg.assoc;
2644
2645 if (changes & BSS_CHANGED_ASSOC) {
2646 if (vif->cfg.assoc) {
2647 /* clear statistics to get clean beacon counter */
2648 iwl_mvm_request_statistics(mvm, true);
2649 for_each_mvm_vif_valid_link(mvmvif, i)
2650 memset(&mvmvif->link[i]->beacon_stats, 0,
2651 sizeof(mvmvif->link[i]->beacon_stats));
2652
2653 /* add quota for this interface */
2654 ret = iwl_mvm_update_quotas(mvm, true, NULL);
2655 if (ret) {
2656 IWL_ERR(mvm, "failed to update quotas\n");
2657 return;
2658 }
2659
2660 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2661 &mvm->status) &&
2662 !fw_has_capa(&mvm->fw->ucode_capa,
2663 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {
2664 /*
2665 * If we're restarting then the firmware will
2666 * obviously have lost synchronisation with
2667 * the AP. It will attempt to synchronise by
2668 * itself, but we can make it more reliable by
2669 * scheduling a session protection time event.
2670 *
2671 * The firmware needs to receive a beacon to
2672 * catch up with synchronisation, use 110% of
2673 * the beacon interval.
2674 *
2675 * Set a large maximum delay to allow for more
2676 * than a single interface.
2677 *
2678 * For new firmware versions, rely on the
2679 * firmware. This is relevant for DCM scenarios
2680 * only anyway.
2681 */
2682 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2683 iwl_mvm_protect_session(mvm, vif, dur, dur,
2684 5 * dur, false);
2685 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2686 &mvm->status) &&
2687 !vif->bss_conf.dtim_period) {
2688 /*
2689 * If we're not restarting and still haven't
2690 * heard a beacon (dtim period unknown) then
2691 * make sure we still have enough minimum time
2692 * remaining in the time event, since the auth
2693 * might actually have taken quite a while
2694 * (especially for SAE) and so the remaining
2695 * time could be small without us having heard
2696 * a beacon yet.
2697 */
2698 iwl_mvm_protect_assoc(mvm, vif, 0, 0);
2699 }
2700
2701 iwl_mvm_sf_update(mvm, vif, false);
2702 iwl_mvm_power_vif_assoc(mvm, vif);
2703 if (vif->p2p) {
2704 iwl_mvm_update_smps(mvm, vif,
2705 IWL_MVM_SMPS_REQ_PROT,
2706 IEEE80211_SMPS_DYNAMIC, 0);
2707 }
2708 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) {
2709 iwl_mvm_mei_host_disassociated(mvm);
2710 /*
2711 * If update fails - SF might be running in associated
2712 * mode while disassociated - which is forbidden.
2713 */
2714 ret = iwl_mvm_sf_update(mvm, vif, false);
2715 WARN_ONCE(ret &&
2716 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
2717 &mvm->status),
2718 "Failed to update SF upon disassociation\n");
2719
2720 /*
2721 * If we get an assert during the connection (after the
2722 * station has been added, but before the vif is set
2723 * to associated), mac80211 will re-add the station and
2724 * then configure the vif. Since the vif is not
2725 * associated, we would remove the station here and
2726 * this would fail the recovery.
2727 */
2728 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2729 &mvm->status)) {
2730 /* first remove remaining keys */
2731 iwl_mvm_sec_key_remove_ap(mvm, vif,
2732 &mvmvif->deflink, 0);
2733
2734 /*
2735 * Remove AP station now that
2736 * the MAC is unassoc
2737 */
2738 ret = iwl_mvm_rm_sta_id(mvm, vif,
2739 mvmvif->deflink.ap_sta_id);
2740 if (ret)
2741 IWL_ERR(mvm,
2742 "failed to remove AP station\n");
2743
2744 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA;
2745 }
2746
2747 /* remove quota for this interface */
2748 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2749 if (ret)
2750 IWL_ERR(mvm, "failed to update quotas\n");
2751
2752 /* this will take the cleared BSSID from bss_conf */
2753 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2754 if (ret)
2755 IWL_ERR(mvm,
2756 "failed to update MAC %pM (clear after unassoc)\n",
2757 vif->addr);
2758 }
2759
2760 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes);
2761 }
2762
2763 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf,
2764 changes);
2765}
2766
2767bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw,
2768 struct ieee80211_vif *vif,
2769 int *ret)
2770{
2771 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2772 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2773 int i;
2774
2775 lockdep_assert_held(&mvm->mutex);
2776
2777 mvmvif->ap_assoc_sta_count = 0;
2778
2779 /* must be set before quota calculations */
2780 mvmvif->ap_ibss_active = true;
2781
2782 /* send all the early keys to the device now */
2783 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
2784 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i];
2785
2786 if (!key)
2787 continue;
2788
2789 mvmvif->ap_early_keys[i] = NULL;
2790
2791 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key);
2792 if (*ret)
2793 return true;
2794 }
2795
2796 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2797 iwl_mvm_vif_set_low_latency(mvmvif, true,
2798 LOW_LATENCY_VIF_TYPE);
2799 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);
2800 }
2801
2802 /* power updated needs to be done before quotas */
2803 iwl_mvm_power_update_mac(mvm);
2804
2805 return false;
2806}
2807
2808static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2809 struct ieee80211_vif *vif,
2810 struct ieee80211_bss_conf *link_conf)
2811{
2812 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2813 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2814 int ret;
2815
2816 mutex_lock(&mvm->mutex);
2817
2818 /*
2819 * Re-calculate the tsf id, as the leader-follower relations depend on
2820 * the beacon interval, which was not known when the AP interface
2821 * was added.
2822 */
2823 if (vif->type == NL80211_IFTYPE_AP)
2824 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2825
2826 /* For older devices need to send beacon template before adding mac
2827 * context. For the newer, the beacon is a resource that belongs to a
2828 * MAC, so need to send beacon template after adding the mac.
2829 */
2830 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) {
2831 /* Add the mac context */
2832 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2833 if (ret)
2834 goto out_unlock;
2835
2836 /* Send the beacon template */
2837 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
2838 if (ret)
2839 goto out_unlock;
2840 } else {
2841 /* Send the beacon template */
2842 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
2843 if (ret)
2844 goto out_unlock;
2845
2846 /* Add the mac context */
2847 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2848 if (ret)
2849 goto out_unlock;
2850 }
2851
2852 /* Perform the binding */
2853 ret = iwl_mvm_binding_add_vif(mvm, vif);
2854 if (ret)
2855 goto out_remove;
2856
2857 /*
2858 * This is not very nice, but the simplest:
2859 * For older FWs adding the mcast sta before the bcast station may
2860 * cause assert 0x2b00.
2861 * This is fixed in later FW so make the order of removal depend on
2862 * the TLV
2863 */
2864 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
2865 ret = iwl_mvm_add_mcast_sta(mvm, vif);
2866 if (ret)
2867 goto out_unbind;
2868 /*
2869 * Send the bcast station. At this stage the TBTT and DTIM time
2870 * events are added and applied to the scheduler
2871 */
2872 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2873 if (ret) {
2874 iwl_mvm_rm_mcast_sta(mvm, vif);
2875 goto out_unbind;
2876 }
2877 } else {
2878 /*
2879 * Send the bcast station. At this stage the TBTT and DTIM time
2880 * events are added and applied to the scheduler
2881 */
2882 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2883 if (ret)
2884 goto out_unbind;
2885 ret = iwl_mvm_add_mcast_sta(mvm, vif);
2886 if (ret) {
2887 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2888 goto out_unbind;
2889 }
2890 }
2891
2892 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret))
2893 goto out_failed;
2894
2895 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2896 if (ret)
2897 goto out_failed;
2898
2899 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2900 if (vif->p2p && mvm->p2p_device_vif)
2901 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2902
2903 iwl_mvm_bt_coex_vif_change(mvm);
2904
2905 /* we don't support TDLS during DCM */
2906 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2907 iwl_mvm_teardown_tdls_peers(mvm);
2908
2909 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf);
2910
2911 goto out_unlock;
2912
2913out_failed:
2914 iwl_mvm_power_update_mac(mvm);
2915 mvmvif->ap_ibss_active = false;
2916 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2917 iwl_mvm_rm_mcast_sta(mvm, vif);
2918out_unbind:
2919 iwl_mvm_binding_remove_vif(mvm, vif);
2920out_remove:
2921 iwl_mvm_mac_ctxt_remove(mvm, vif);
2922out_unlock:
2923 mutex_unlock(&mvm->mutex);
2924 return ret;
2925}
2926
2927static int iwl_mvm_start_ap(struct ieee80211_hw *hw,
2928 struct ieee80211_vif *vif,
2929 struct ieee80211_bss_conf *link_conf)
2930{
2931 return iwl_mvm_start_ap_ibss(hw, vif, link_conf);
2932}
2933
2934static int iwl_mvm_start_ibss(struct ieee80211_hw *hw,
2935 struct ieee80211_vif *vif)
2936{
2937 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf);
2938}
2939
2940/* Common part for MLD and non-MLD ops */
2941void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm,
2942 struct ieee80211_vif *vif)
2943{
2944 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2945
2946 lockdep_assert_held(&mvm->mutex);
2947
2948 iwl_mvm_prepare_mac_removal(mvm, vif);
2949
2950 /* Handle AP stop while in CSA */
2951 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2952 iwl_mvm_remove_time_event(mvm, mvmvif,
2953 &mvmvif->time_event_data);
2954 RCU_INIT_POINTER(mvm->csa_vif, NULL);
2955 mvmvif->csa_countdown = false;
2956 }
2957
2958 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2959 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2960 mvm->csa_tx_block_bcn_timeout = 0;
2961 }
2962
2963 mvmvif->ap_ibss_active = false;
2964 mvm->ap_last_beacon_gp2 = 0;
2965
2966 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2967 iwl_mvm_vif_set_low_latency(mvmvif, false,
2968 LOW_LATENCY_VIF_TYPE);
2969 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id);
2970 }
2971
2972 iwl_mvm_bt_coex_vif_change(mvm);
2973}
2974
2975static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2976 struct ieee80211_vif *vif,
2977 struct ieee80211_bss_conf *link_conf)
2978{
2979 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2980
2981 mutex_lock(&mvm->mutex);
2982
2983 iwl_mvm_stop_ap_ibss_common(mvm, vif);
2984
2985 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2986 if (vif->p2p && mvm->p2p_device_vif)
2987 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2988
2989 iwl_mvm_update_quotas(mvm, false, NULL);
2990
2991 iwl_mvm_ftm_responder_clear(mvm, vif);
2992
2993 /*
2994 * This is not very nice, but the simplest:
2995 * For older FWs removing the mcast sta before the bcast station may
2996 * cause assert 0x2b00.
2997 * This is fixed in later FW (which will stop beaconing when removing
2998 * bcast station).
2999 * So make the order of removal depend on the TLV
3000 */
3001 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
3002 iwl_mvm_rm_mcast_sta(mvm, vif);
3003 iwl_mvm_send_rm_bcast_sta(mvm, vif);
3004 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
3005 iwl_mvm_rm_mcast_sta(mvm, vif);
3006 iwl_mvm_binding_remove_vif(mvm, vif);
3007
3008 iwl_mvm_power_update_mac(mvm);
3009
3010 iwl_mvm_mac_ctxt_remove(mvm, vif);
3011
3012 mutex_unlock(&mvm->mutex);
3013}
3014
3015static void iwl_mvm_stop_ap(struct ieee80211_hw *hw,
3016 struct ieee80211_vif *vif,
3017 struct ieee80211_bss_conf *link_conf)
3018{
3019 iwl_mvm_stop_ap_ibss(hw, vif, link_conf);
3020}
3021
3022static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw,
3023 struct ieee80211_vif *vif)
3024{
3025 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf);
3026}
3027
3028static void
3029iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
3030 struct ieee80211_vif *vif,
3031 struct ieee80211_bss_conf *bss_conf,
3032 u64 changes)
3033{
3034 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3035
3036 /* Changes will be applied when the AP/IBSS is started */
3037 if (!mvmvif->ap_ibss_active)
3038 return;
3039
3040 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
3041 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3042 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
3043 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
3044
3045 /* Need to send a new beacon template to the FW */
3046 if (changes & BSS_CHANGED_BEACON &&
3047 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf))
3048 IWL_WARN(mvm, "Failed updating beacon data\n");
3049
3050 if (changes & BSS_CHANGED_FTM_RESPONDER) {
3051 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf);
3052
3053 if (ret)
3054 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n",
3055 ret);
3056 }
3057
3058}
3059
3060static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
3061 struct ieee80211_vif *vif,
3062 struct ieee80211_bss_conf *bss_conf,
3063 u64 changes)
3064{
3065 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3066
3067 mutex_lock(&mvm->mutex);
3068
3069 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle)
3070 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
3071
3072 switch (vif->type) {
3073 case NL80211_IFTYPE_STATION:
3074 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
3075 break;
3076 case NL80211_IFTYPE_AP:
3077 case NL80211_IFTYPE_ADHOC:
3078 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
3079 break;
3080 case NL80211_IFTYPE_MONITOR:
3081 if (changes & BSS_CHANGED_MU_GROUPS)
3082 iwl_mvm_update_mu_groups(mvm, vif);
3083 break;
3084 default:
3085 /* shouldn't happen */
3086 WARN_ON_ONCE(1);
3087 }
3088
3089 if (changes & BSS_CHANGED_TXPOWER) {
3090 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n",
3091 bss_conf->txpower);
3092 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
3093 }
3094
3095 mutex_unlock(&mvm->mutex);
3096}
3097
3098int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3099 struct ieee80211_scan_request *hw_req)
3100{
3101 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3102 int ret;
3103
3104 if (hw_req->req.n_channels == 0 ||
3105 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
3106 return -EINVAL;
3107
3108 mutex_lock(&mvm->mutex);
3109 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
3110 mutex_unlock(&mvm->mutex);
3111
3112 return ret;
3113}
3114
3115void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
3116 struct ieee80211_vif *vif)
3117{
3118 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3119
3120 mutex_lock(&mvm->mutex);
3121
3122 /* Due to a race condition, it's possible that mac80211 asks
3123 * us to stop a hw_scan when it's already stopped. This can
3124 * happen, for instance, if we stopped the scan ourselves,
3125 * called ieee80211_scan_completed() and the userspace called
3126 * cancel scan scan before ieee80211_scan_work() could run.
3127 * To handle that, simply return if the scan is not running.
3128 */
3129 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
3130 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
3131
3132 mutex_unlock(&mvm->mutex);
3133}
3134
3135void
3136iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3137 struct ieee80211_sta *sta, u16 tids,
3138 int num_frames,
3139 enum ieee80211_frame_release_type reason,
3140 bool more_data)
3141{
3142 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3143
3144 /* Called when we need to transmit (a) frame(s) from mac80211 */
3145
3146 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
3147 tids, more_data, false);
3148}
3149
3150void
3151iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
3152 struct ieee80211_sta *sta, u16 tids,
3153 int num_frames,
3154 enum ieee80211_frame_release_type reason,
3155 bool more_data)
3156{
3157 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3158
3159 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
3160
3161 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
3162 tids, more_data, true);
3163}
3164
3165static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
3166 enum sta_notify_cmd cmd,
3167 struct ieee80211_sta *sta)
3168{
3169 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3170 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3171 unsigned long txqs = 0, tids = 0;
3172 int tid;
3173
3174 /*
3175 * If we have TVQM then we get too high queue numbers - luckily
3176 * we really shouldn't get here with that because such hardware
3177 * should have firmware supporting buffer station offload.
3178 */
3179 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
3180 return;
3181
3182 spin_lock_bh(&mvmsta->lock);
3183 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) {
3184 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
3185
3186 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
3187 continue;
3188
3189 __set_bit(tid_data->txq_id, &txqs);
3190
3191 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
3192 continue;
3193
3194 __set_bit(tid, &tids);
3195 }
3196
3197 switch (cmd) {
3198 case STA_NOTIFY_SLEEP:
3199 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3200 ieee80211_sta_set_buffered(sta, tid, true);
3201
3202 if (txqs)
3203 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
3204 /*
3205 * The fw updates the STA to be asleep. Tx packets on the Tx
3206 * queues to this station will not be transmitted. The fw will
3207 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
3208 */
3209 break;
3210 case STA_NOTIFY_AWAKE:
3211 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA))
3212 break;
3213
3214 if (txqs)
3215 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
3216 iwl_mvm_sta_modify_ps_wake(mvm, sta);
3217 break;
3218 default:
3219 break;
3220 }
3221 spin_unlock_bh(&mvmsta->lock);
3222}
3223
3224void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3225 enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
3226{
3227 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
3228}
3229
3230void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
3231{
3232 struct iwl_rx_packet *pkt = rxb_addr(rxb);
3233 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
3234 struct ieee80211_sta *sta;
3235 struct iwl_mvm_sta *mvmsta;
3236 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
3237
3238 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations))
3239 return;
3240
3241 rcu_read_lock();
3242 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
3243 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
3244 rcu_read_unlock();
3245 return;
3246 }
3247
3248 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3249
3250 if (!mvmsta->vif ||
3251 mvmsta->vif->type != NL80211_IFTYPE_AP) {
3252 rcu_read_unlock();
3253 return;
3254 }
3255
3256 if (mvmsta->sleeping != sleeping) {
3257 mvmsta->sleeping = sleeping;
3258 __iwl_mvm_mac_sta_notify(mvm->hw,
3259 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
3260 sta);
3261 ieee80211_sta_ps_transition(sta, sleeping);
3262 }
3263
3264 if (sleeping) {
3265 switch (notif->type) {
3266 case IWL_MVM_PM_EVENT_AWAKE:
3267 case IWL_MVM_PM_EVENT_ASLEEP:
3268 break;
3269 case IWL_MVM_PM_EVENT_UAPSD:
3270 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
3271 break;
3272 case IWL_MVM_PM_EVENT_PS_POLL:
3273 ieee80211_sta_pspoll(sta);
3274 break;
3275 default:
3276 break;
3277 }
3278 }
3279
3280 rcu_read_unlock();
3281}
3282
3283void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
3284 struct ieee80211_vif *vif,
3285 struct ieee80211_sta *sta)
3286{
3287 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3288 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3289 unsigned int link_id;
3290
3291 /*
3292 * This is called before mac80211 does RCU synchronisation,
3293 * so here we already invalidate our internal RCU-protected
3294 * station pointer. The rest of the code will thus no longer
3295 * be able to find the station this way, and we don't rely
3296 * on further RCU synchronisation after the sta_state()
3297 * callback deleted the station.
3298 * Since there's mvm->mutex here, no need to have RCU lock for
3299 * mvm_sta->link access.
3300 */
3301 mutex_lock(&mvm->mutex);
3302 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) {
3303 struct iwl_mvm_link_sta *link_sta;
3304 u32 sta_id;
3305
3306 if (!mvm_sta->link[link_id])
3307 continue;
3308
3309 link_sta = rcu_dereference_protected(mvm_sta->link[link_id],
3310 lockdep_is_held(&mvm->mutex));
3311 sta_id = link_sta->sta_id;
3312 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) {
3313 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id],
3314 ERR_PTR(-ENOENT));
3315 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL);
3316 }
3317 }
3318 mutex_unlock(&mvm->mutex);
3319}
3320
3321static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
3322 const u8 *bssid)
3323{
3324 int i;
3325
3326 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
3327 struct iwl_mvm_tcm_mac *mdata;
3328
3329 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id];
3330 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate);
3331 mdata->opened_rx_ba_sessions = false;
3332 }
3333
3334 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
3335 return;
3336
3337 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
3338 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3339 return;
3340 }
3341
3342 if (!vif->p2p &&
3343 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
3344 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3345 return;
3346 }
3347
3348 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) {
3349 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) {
3350 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3351 return;
3352 }
3353 }
3354
3355 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
3356}
3357
3358static void
3359iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
3360 struct ieee80211_vif *vif, u8 *peer_addr,
3361 enum nl80211_tdls_operation action)
3362{
3363 struct iwl_fw_dbg_trigger_tlv *trig;
3364 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
3365
3366 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
3367 FW_DBG_TRIGGER_TDLS);
3368 if (!trig)
3369 return;
3370
3371 tdls_trig = (void *)trig->data;
3372
3373 if (!(tdls_trig->action_bitmap & BIT(action)))
3374 return;
3375
3376 if (tdls_trig->peer_mode &&
3377 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
3378 return;
3379
3380 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
3381 "TDLS event occurred, peer %pM, action %d",
3382 peer_addr, action);
3383}
3384
3385struct iwl_mvm_he_obss_narrow_bw_ru_data {
3386 bool tolerated;
3387};
3388
3389static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy,
3390 struct cfg80211_bss *bss,
3391 void *_data)
3392{
3393 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data;
3394 const struct cfg80211_bss_ies *ies;
3395 const struct element *elem;
3396
3397 rcu_read_lock();
3398 ies = rcu_dereference(bss->ies);
3399 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data,
3400 ies->len);
3401
3402 if (!elem || elem->datalen < 10 ||
3403 !(elem->data[10] &
3404 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) {
3405 data->tolerated = false;
3406 }
3407 rcu_read_unlock();
3408}
3409
3410static void
3411iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,
3412 struct ieee80211_vif *vif,
3413 unsigned int link_id,
3414 struct ieee80211_bss_conf *link_conf)
3415{
3416 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3417 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = {
3418 .tolerated = true,
3419 };
3420
3421 if (WARN_ON_ONCE(!link_conf->chandef.chan ||
3422 !mvmvif->link[link_id]))
3423 return;
3424
3425 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) {
3426 mvmvif->link[link_id]->he_ru_2mhz_block = false;
3427 return;
3428 }
3429
3430 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef,
3431 iwl_mvm_check_he_obss_narrow_bw_ru_iter,
3432 &iter_data);
3433
3434 /*
3435 * If there is at least one AP on radar channel that cannot
3436 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU.
3437 */
3438 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated;
3439}
3440
3441static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm,
3442 struct ieee80211_vif *vif)
3443{
3444 struct ieee80211_supported_band *sband;
3445 const struct ieee80211_sta_he_cap *he_cap;
3446
3447 if (vif->type != NL80211_IFTYPE_STATION)
3448 return;
3449
3450 if (!mvm->cca_40mhz_workaround)
3451 return;
3452
3453 /* decrement and check that we reached zero */
3454 mvm->cca_40mhz_workaround--;
3455 if (mvm->cca_40mhz_workaround)
3456 return;
3457
3458 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
3459
3460 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
3461
3462 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
3463
3464 if (he_cap) {
3465 /* we know that ours is writable */
3466 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
3467
3468 he->he_cap_elem.phy_cap_info[0] |=
3469 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
3470 }
3471}
3472
3473static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm,
3474 struct ieee80211_vif *vif,
3475 struct iwl_mvm_sta *mvm_sta)
3476{
3477#if IS_ENABLED(CONFIG_IWLMEI)
3478 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3479 struct iwl_mei_conn_info conn_info = {
3480 .ssid_len = vif->cfg.ssid_len,
3481 };
3482
3483 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3484 return;
3485
3486 if (!mvm->mei_registered)
3487 return;
3488
3489 /* FIXME: MEI needs to be updated for MLO */
3490 if (!vif->bss_conf.chandef.chan)
3491 return;
3492
3493 conn_info.channel = vif->bss_conf.chandef.chan->hw_value;
3494
3495 switch (mvm_sta->pairwise_cipher) {
3496 case WLAN_CIPHER_SUITE_TKIP:
3497 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP;
3498 break;
3499 case WLAN_CIPHER_SUITE_CCMP:
3500 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP;
3501 break;
3502 case WLAN_CIPHER_SUITE_GCMP:
3503 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP;
3504 break;
3505 case WLAN_CIPHER_SUITE_GCMP_256:
3506 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256;
3507 break;
3508 case 0:
3509 /* open profile */
3510 break;
3511 default:
3512 /* cipher not supported, don't send anything to iwlmei */
3513 return;
3514 }
3515
3516 switch (mvmvif->rekey_data.akm) {
3517 case WLAN_AKM_SUITE_SAE & 0xff:
3518 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE;
3519 break;
3520 case WLAN_AKM_SUITE_PSK & 0xff:
3521 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK;
3522 break;
3523 case WLAN_AKM_SUITE_8021X & 0xff:
3524 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA;
3525 break;
3526 case 0:
3527 /* open profile */
3528 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN;
3529 break;
3530 default:
3531 /* auth method / AKM not supported */
3532 /* TODO: All the FT vesions of these? */
3533 return;
3534 }
3535
3536 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len);
3537 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN);
3538
3539 /* TODO: add support for collocated AP data */
3540 iwl_mei_host_associated(&conn_info, NULL);
3541#endif
3542}
3543
3544static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm,
3545 struct ieee80211_vif *vif,
3546 bool force_assoc_off)
3547{
3548 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL);
3549}
3550
3551static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
3552 struct ieee80211_vif *vif,
3553 struct ieee80211_sta *sta,
3554 enum ieee80211_sta_state old_state,
3555 enum ieee80211_sta_state new_state)
3556{
3557 static const struct iwl_mvm_sta_state_ops callbacks = {
3558 .add_sta = iwl_mvm_add_sta,
3559 .update_sta = iwl_mvm_update_sta,
3560 .rm_sta = iwl_mvm_rm_sta,
3561 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper,
3562 };
3563
3564 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state,
3565 &callbacks);
3566}
3567
3568/* FIXME: temporary making two assumptions in all sta handling functions:
3569 * (1) when setting sta state, the link exists and protected
3570 * (2) if a link is valid in sta then it's valid in vif (can
3571 * use same index in the link array)
3572 */
3573static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm,
3574 struct ieee80211_vif *vif,
3575 struct ieee80211_sta *sta)
3576{
3577 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3578 unsigned int link_id;
3579
3580 for_each_mvm_vif_valid_link(mvmvif, link_id) {
3581 struct ieee80211_bss_conf *conf =
3582 link_conf_dereference_check(vif, link_id);
3583 struct ieee80211_link_sta *link_sta =
3584 link_sta_dereference_check(sta, link_id);
3585
3586 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt)
3587 continue;
3588
3589 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta,
3590 mvmvif->link[link_id]->phy_ctxt->channel->band);
3591 }
3592}
3593
3594#define IWL_MVM_MIN_BEACON_INTERVAL_TU 16
3595
3596static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm,
3597 struct ieee80211_vif *vif,
3598 struct ieee80211_sta *sta)
3599{
3600 struct ieee80211_link_sta *link_sta;
3601 unsigned int link_id;
3602
3603 /* Beacon interval check - firmware will crash if the beacon
3604 * interval is less than 16. We can't avoid connecting at all,
3605 * so refuse the station state change, this will cause mac80211
3606 * to abandon attempts to connect to this AP, and eventually
3607 * wpa_s will blocklist the AP...
3608 */
3609
3610 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3611 struct ieee80211_bss_conf *link_conf =
3612 link_conf_dereference_protected(vif, link_id);
3613
3614 if (!link_conf)
3615 continue;
3616
3617 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) {
3618 IWL_ERR(mvm,
3619 "Beacon interval %d for AP %pM is too small\n",
3620 link_conf->beacon_int, link_sta->addr);
3621 return false;
3622 }
3623
3624 link_conf->he_support = link_sta->he_cap.has_he;
3625 }
3626
3627 return true;
3628}
3629
3630static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw,
3631 struct ieee80211_vif *vif,
3632 struct ieee80211_sta *sta,
3633 bool is_sta)
3634{
3635 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3636 struct ieee80211_link_sta *link_sta;
3637 unsigned int link_id;
3638
3639 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3640 struct ieee80211_bss_conf *link_conf =
3641 link_conf_dereference_protected(vif, link_id);
3642
3643 if (!link_conf || !mvmvif->link[link_id])
3644 continue;
3645
3646 link_conf->he_support = link_sta->he_cap.has_he;
3647
3648 if (is_sta) {
3649 mvmvif->link[link_id]->he_ru_2mhz_block = false;
3650 if (link_sta->he_cap.has_he)
3651 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif,
3652 link_id,
3653 link_conf);
3654 }
3655 }
3656}
3657
3658static int
3659iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm,
3660 struct ieee80211_vif *vif,
3661 struct ieee80211_sta *sta,
3662 const struct iwl_mvm_sta_state_ops *callbacks)
3663{
3664 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3665 struct ieee80211_link_sta *link_sta;
3666 unsigned int i;
3667 int ret;
3668
3669 lockdep_assert_held(&mvm->mutex);
3670
3671 if (vif->type == NL80211_IFTYPE_STATION &&
3672 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta))
3673 return -EINVAL;
3674
3675 if (sta->tdls &&
3676 (vif->p2p ||
3677 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT ||
3678 iwl_mvm_phy_ctx_count(mvm) > 1)) {
3679 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
3680 return -EBUSY;
3681 }
3682
3683 ret = callbacks->add_sta(mvm, vif, sta);
3684 if (sta->tdls && ret == 0) {
3685 iwl_mvm_recalc_tdls_state(mvm, vif, true);
3686 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3687 NL80211_TDLS_SETUP);
3688 }
3689
3690 if (ret)
3691 return ret;
3692
3693 for_each_sta_active_link(vif, sta, link_sta, i)
3694 link_sta->agg.max_rc_amsdu_len = 1;
3695
3696 ieee80211_sta_recalc_aggregates(sta);
3697
3698 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
3699 mvmvif->ap_sta = sta;
3700
3701 return 0;
3702}
3703
3704static int
3705iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw,
3706 struct iwl_mvm *mvm,
3707 struct ieee80211_vif *vif,
3708 struct ieee80211_sta *sta,
3709 const struct iwl_mvm_sta_state_ops *callbacks)
3710{
3711 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3712 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3713 struct ieee80211_link_sta *link_sta;
3714 unsigned int link_id;
3715
3716 lockdep_assert_held(&mvm->mutex);
3717
3718 if (vif->type == NL80211_IFTYPE_AP) {
3719 iwl_mvm_vif_set_he_support(hw, vif, sta, false);
3720 mvmvif->ap_assoc_sta_count++;
3721 callbacks->mac_ctxt_changed(mvm, vif, false);
3722
3723 /* since the below is not for MLD API, it's ok to use
3724 * the default bss_conf
3725 */
3726 if (!mvm->mld_api_is_used &&
3727 ((vif->bss_conf.he_support &&
3728 !iwlwifi_mod_params.disable_11ax) ||
3729 (vif->bss_conf.eht_support &&
3730 !iwlwifi_mod_params.disable_11be)))
3731 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id);
3732 } else if (vif->type == NL80211_IFTYPE_STATION) {
3733 iwl_mvm_vif_set_he_support(hw, vif, sta, true);
3734
3735 callbacks->mac_ctxt_changed(mvm, vif, false);
3736
3737 if (!mvm->mld_api_is_used)
3738 goto out;
3739
3740 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3741 struct ieee80211_bss_conf *link_conf =
3742 link_conf_dereference_protected(vif, link_id);
3743
3744 if (WARN_ON(!link_conf))
3745 return -EINVAL;
3746 if (!mvmvif->link[link_id])
3747 continue;
3748
3749 iwl_mvm_link_changed(mvm, vif, link_conf,
3750 LINK_CONTEXT_MODIFY_ALL &
3751 ~LINK_CONTEXT_MODIFY_ACTIVE,
3752 true);
3753 }
3754 }
3755
3756out:
3757 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3758
3759 return callbacks->update_sta(mvm, vif, sta);
3760}
3761
3762static int
3763iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm,
3764 struct ieee80211_vif *vif,
3765 struct ieee80211_sta *sta,
3766 const struct iwl_mvm_sta_state_ops *callbacks)
3767{
3768 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3769 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3770
3771 lockdep_assert_held(&mvm->mutex);
3772
3773 /* we don't support TDLS during DCM */
3774 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3775 iwl_mvm_teardown_tdls_peers(mvm);
3776
3777 if (sta->tdls) {
3778 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3779 NL80211_TDLS_ENABLE_LINK);
3780 } else {
3781 /* enable beacon filtering */
3782 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
3783
3784 mvmvif->authorized = 1;
3785
3786 callbacks->mac_ctxt_changed(mvm, vif, false);
3787 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta);
3788
3789 /* when client is authorized (AP station marked as such),
3790 * try to enable more links
3791 */
3792 if (vif->type == NL80211_IFTYPE_STATION &&
3793 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3794 iwl_mvm_mld_select_links(mvm, vif, false);
3795 }
3796
3797 mvm_sta->authorized = true;
3798
3799 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3800
3801 /* MFP is set by default before the station is authorized.
3802 * Clear it here in case it's not used.
3803 */
3804 if (!sta->mfp)
3805 return callbacks->update_sta(mvm, vif, sta);
3806
3807 return 0;
3808}
3809
3810static int
3811iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm,
3812 struct ieee80211_vif *vif,
3813 struct ieee80211_sta *sta,
3814 const struct iwl_mvm_sta_state_ops *callbacks)
3815{
3816 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3817 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3818
3819 lockdep_assert_held(&mvm->mutex);
3820
3821 mvmsta->authorized = false;
3822
3823 /* once we move into assoc state, need to update rate scale to
3824 * disable using wide bandwidth
3825 */
3826 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3827
3828 if (!sta->tdls) {
3829 /* Set this but don't call iwl_mvm_mac_ctxt_changed()
3830 * yet to avoid sending high prio again for a little
3831 * time.
3832 */
3833 mvmvif->authorized = 0;
3834
3835 /* disable beacon filtering */
3836 iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3837 }
3838
3839 return 0;
3840}
3841
3842/* Common part for MLD and non-MLD modes */
3843int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw,
3844 struct ieee80211_vif *vif,
3845 struct ieee80211_sta *sta,
3846 enum ieee80211_sta_state old_state,
3847 enum ieee80211_sta_state new_state,
3848 const struct iwl_mvm_sta_state_ops *callbacks)
3849{
3850 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3851 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3852 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3853 struct ieee80211_link_sta *link_sta;
3854 unsigned int link_id;
3855 int ret;
3856
3857 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
3858 sta->addr, old_state, new_state);
3859
3860 /*
3861 * If we are in a STA removal flow and in DQA mode:
3862 *
3863 * This is after the sync_rcu part, so the queues have already been
3864 * flushed. No more TXs on their way in mac80211's path, and no more in
3865 * the queues.
3866 * Also, we won't be getting any new TX frames for this station.
3867 * What we might have are deferred TX frames that need to be taken care
3868 * of.
3869 *
3870 * Drop any still-queued deferred-frame before removing the STA, and
3871 * make sure the worker is no longer handling frames for this STA.
3872 */
3873 if (old_state == IEEE80211_STA_NONE &&
3874 new_state == IEEE80211_STA_NOTEXIST) {
3875 flush_work(&mvm->add_stream_wk);
3876
3877 /*
3878 * No need to make sure deferred TX indication is off since the
3879 * worker will already remove it if it was on
3880 */
3881
3882 /*
3883 * Additionally, reset the 40 MHz capability if we disconnected
3884 * from the AP now.
3885 */
3886 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif);
3887
3888 /* Also free dup data just in case any assertions below fail */
3889 kfree(mvm_sta->dup_data);
3890 }
3891
3892 mutex_lock(&mvm->mutex);
3893
3894 /* this would be a mac80211 bug ... but don't crash, unless we had a
3895 * firmware crash while we were activating a link, in which case it is
3896 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in
3897 * recovery flow since we spit tons of error messages anyway.
3898 */
3899 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3900 if (WARN_ON_ONCE(!mvmvif->link[link_id] ||
3901 !mvmvif->link[link_id]->phy_ctxt)) {
3902 mutex_unlock(&mvm->mutex);
3903 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
3904 &mvm->status) ? 0 : -EINVAL;
3905 }
3906 }
3907
3908 /* track whether or not the station is associated */
3909 mvm_sta->sta_state = new_state;
3910
3911 if (old_state == IEEE80211_STA_NOTEXIST &&
3912 new_state == IEEE80211_STA_NONE) {
3913 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta,
3914 callbacks);
3915 if (ret < 0)
3916 goto out_unlock;
3917 } else if (old_state == IEEE80211_STA_NONE &&
3918 new_state == IEEE80211_STA_AUTH) {
3919 /*
3920 * EBS may be disabled due to previous failures reported by FW.
3921 * Reset EBS status here assuming environment has been changed.
3922 */
3923 mvm->last_ebs_successful = true;
3924 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
3925 ret = 0;
3926 } else if (old_state == IEEE80211_STA_AUTH &&
3927 new_state == IEEE80211_STA_ASSOC) {
3928 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta,
3929 callbacks);
3930 } else if (old_state == IEEE80211_STA_ASSOC &&
3931 new_state == IEEE80211_STA_AUTHORIZED) {
3932 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta,
3933 callbacks);
3934 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
3935 new_state == IEEE80211_STA_ASSOC) {
3936 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta,
3937 callbacks);
3938 } else if (old_state == IEEE80211_STA_ASSOC &&
3939 new_state == IEEE80211_STA_AUTH) {
3940 if (vif->type == NL80211_IFTYPE_AP) {
3941 mvmvif->ap_assoc_sta_count--;
3942 callbacks->mac_ctxt_changed(mvm, vif, false);
3943 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
3944 iwl_mvm_stop_session_protection(mvm, vif);
3945 ret = 0;
3946 } else if (old_state == IEEE80211_STA_AUTH &&
3947 new_state == IEEE80211_STA_NONE) {
3948 ret = 0;
3949 } else if (old_state == IEEE80211_STA_NONE &&
3950 new_state == IEEE80211_STA_NOTEXIST) {
3951 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) {
3952 iwl_mvm_stop_session_protection(mvm, vif);
3953 mvmvif->ap_sta = NULL;
3954 }
3955 ret = callbacks->rm_sta(mvm, vif, sta);
3956 if (sta->tdls) {
3957 iwl_mvm_recalc_tdls_state(mvm, vif, false);
3958 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3959 NL80211_TDLS_DISABLE_LINK);
3960 }
3961
3962 if (unlikely(ret &&
3963 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
3964 &mvm->status)))
3965 ret = 0;
3966 } else {
3967 ret = -EIO;
3968 }
3969 out_unlock:
3970 mutex_unlock(&mvm->mutex);
3971
3972 if (sta->tdls && ret == 0) {
3973 if (old_state == IEEE80211_STA_NOTEXIST &&
3974 new_state == IEEE80211_STA_NONE)
3975 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3976 else if (old_state == IEEE80211_STA_NONE &&
3977 new_state == IEEE80211_STA_NOTEXIST)
3978 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3979 }
3980
3981 return ret;
3982}
3983
3984int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3985{
3986 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3987
3988 mvm->rts_threshold = value;
3989
3990 return 0;
3991}
3992
3993void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3994 struct ieee80211_sta *sta, u32 changed)
3995{
3996 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3997
3998 if (changed & (IEEE80211_RC_BW_CHANGED |
3999 IEEE80211_RC_SUPP_RATES_CHANGED |
4000 IEEE80211_RC_NSS_CHANGED))
4001 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4002
4003 if (vif->type == NL80211_IFTYPE_STATION &&
4004 changed & IEEE80211_RC_NSS_CHANGED)
4005 iwl_mvm_sf_update(mvm, vif, false);
4006}
4007
4008static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
4009 struct ieee80211_vif *vif,
4010 unsigned int link_id, u16 ac,
4011 const struct ieee80211_tx_queue_params *params)
4012{
4013 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4014 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4015
4016 mvmvif->deflink.queue_params[ac] = *params;
4017
4018 /*
4019 * No need to update right away, we'll get BSS_CHANGED_QOS
4020 * The exception is P2P_DEVICE interface which needs immediate update.
4021 */
4022 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
4023 int ret;
4024
4025 mutex_lock(&mvm->mutex);
4026 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
4027 mutex_unlock(&mvm->mutex);
4028 return ret;
4029 }
4030 return 0;
4031}
4032
4033void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
4034 struct ieee80211_vif *vif,
4035 struct ieee80211_prep_tx_info *info)
4036{
4037 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4038
4039 mutex_lock(&mvm->mutex);
4040 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id);
4041 mutex_unlock(&mvm->mutex);
4042}
4043
4044void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw,
4045 struct ieee80211_vif *vif,
4046 struct ieee80211_prep_tx_info *info)
4047{
4048 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4049
4050 /* for successful cases (auth/assoc), don't cancel session protection */
4051 if (info->success)
4052 return;
4053
4054 mutex_lock(&mvm->mutex);
4055 iwl_mvm_stop_session_protection(mvm, vif);
4056 mutex_unlock(&mvm->mutex);
4057}
4058
4059int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
4060 struct ieee80211_vif *vif,
4061 struct cfg80211_sched_scan_request *req,
4062 struct ieee80211_scan_ies *ies)
4063{
4064 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4065
4066 int ret;
4067
4068 mutex_lock(&mvm->mutex);
4069
4070 if (!vif->cfg.idle) {
4071 ret = -EBUSY;
4072 goto out;
4073 }
4074
4075 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
4076
4077out:
4078 mutex_unlock(&mvm->mutex);
4079 return ret;
4080}
4081
4082int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
4083 struct ieee80211_vif *vif)
4084{
4085 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4086 int ret;
4087
4088 mutex_lock(&mvm->mutex);
4089
4090 /* Due to a race condition, it's possible that mac80211 asks
4091 * us to stop a sched_scan when it's already stopped. This
4092 * can happen, for instance, if we stopped the scan ourselves,
4093 * called ieee80211_sched_scan_stopped() and the userspace called
4094 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
4095 * could run. To handle this, simply return if the scan is
4096 * not running.
4097 */
4098 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
4099 mutex_unlock(&mvm->mutex);
4100 return 0;
4101 }
4102
4103 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
4104 mutex_unlock(&mvm->mutex);
4105 iwl_mvm_wait_for_async_handlers(mvm);
4106
4107 return ret;
4108}
4109
4110static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
4111 enum set_key_cmd cmd,
4112 struct ieee80211_vif *vif,
4113 struct ieee80211_sta *sta,
4114 struct ieee80211_key_conf *key)
4115{
4116 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4117 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4118 struct iwl_mvm_sta *mvmsta = NULL;
4119 struct iwl_mvm_key_pn *ptk_pn = NULL;
4120 int keyidx = key->keyidx;
4121 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);
4122 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);
4123 int ret, i;
4124 u8 key_offset;
4125
4126 if (sta)
4127 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4128
4129 switch (key->cipher) {
4130 case WLAN_CIPHER_SUITE_TKIP:
4131 if (!mvm->trans->trans_cfg->gen2) {
4132 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
4133 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
4134 } else if (vif->type == NL80211_IFTYPE_STATION) {
4135 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE;
4136 } else {
4137 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n");
4138 return -EOPNOTSUPP;
4139 }
4140 break;
4141 case WLAN_CIPHER_SUITE_CCMP:
4142 case WLAN_CIPHER_SUITE_GCMP:
4143 case WLAN_CIPHER_SUITE_GCMP_256:
4144 if (!iwl_mvm_has_new_tx_api(mvm))
4145 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
4146 break;
4147 case WLAN_CIPHER_SUITE_AES_CMAC:
4148 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
4149 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
4150 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
4151 break;
4152 case WLAN_CIPHER_SUITE_WEP40:
4153 case WLAN_CIPHER_SUITE_WEP104:
4154 if (vif->type == NL80211_IFTYPE_STATION)
4155 break;
4156 if (iwl_mvm_has_new_tx_api(mvm))
4157 return -EOPNOTSUPP;
4158 /* support HW crypto on TX */
4159 return 0;
4160 default:
4161 return -EOPNOTSUPP;
4162 }
4163
4164 switch (cmd) {
4165 case SET_KEY:
4166 if (vif->type == NL80211_IFTYPE_STATION &&
4167 (keyidx == 6 || keyidx == 7))
4168 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6],
4169 key);
4170
4171 if ((vif->type == NL80211_IFTYPE_ADHOC ||
4172 vif->type == NL80211_IFTYPE_AP) && !sta) {
4173 /*
4174 * GTK on AP interface is a TX-only key, return 0;
4175 * on IBSS they're per-station and because we're lazy
4176 * we don't support them for RX, so do the same.
4177 * CMAC/GMAC in AP/IBSS modes must be done in software
4178 * on older NICs.
4179 *
4180 * Except, of course, beacon protection - it must be
4181 * offloaded since we just set a beacon template, and
4182 * then we must also offload the IGTK (not just BIGTK)
4183 * for firmware reasons.
4184 *
4185 * So just check for beacon protection - if we don't
4186 * have it we cannot get here with keyidx >= 6, and
4187 * if we do have it we need to send the key to FW in
4188 * all cases (CMAC/GMAC).
4189 */
4190 if (!wiphy_ext_feature_isset(hw->wiphy,
4191 NL80211_EXT_FEATURE_BEACON_PROTECTION) &&
4192 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
4193 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
4194 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) {
4195 ret = -EOPNOTSUPP;
4196 break;
4197 }
4198
4199 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
4200 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
4201 !iwl_mvm_has_new_tx_api(mvm)) {
4202 key->hw_key_idx = STA_KEY_IDX_INVALID;
4203 ret = 0;
4204 break;
4205 }
4206
4207 if (!mvmvif->ap_ibss_active) {
4208 for (i = 0;
4209 i < ARRAY_SIZE(mvmvif->ap_early_keys);
4210 i++) {
4211 if (!mvmvif->ap_early_keys[i]) {
4212 mvmvif->ap_early_keys[i] = key;
4213 break;
4214 }
4215 }
4216
4217 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys))
4218 ret = -ENOSPC;
4219 else
4220 ret = 0;
4221
4222 break;
4223 }
4224 }
4225
4226 /* During FW restart, in order to restore the state as it was,
4227 * don't try to reprogram keys we previously failed for.
4228 */
4229 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
4230 key->hw_key_idx == STA_KEY_IDX_INVALID) {
4231 IWL_DEBUG_MAC80211(mvm,
4232 "skip invalid idx key programming during restart\n");
4233 ret = 0;
4234 break;
4235 }
4236
4237 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
4238 mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
4239 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
4240 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
4241 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
4242 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
4243 struct ieee80211_key_seq seq;
4244 int tid, q;
4245
4246 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
4247 ptk_pn = kzalloc(struct_size(ptk_pn, q,
4248 mvm->trans->num_rx_queues),
4249 GFP_KERNEL);
4250 if (!ptk_pn) {
4251 ret = -ENOMEM;
4252 break;
4253 }
4254
4255 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
4256 ieee80211_get_key_rx_seq(key, tid, &seq);
4257 for (q = 0; q < mvm->trans->num_rx_queues; q++)
4258 memcpy(ptk_pn->q[q].pn[tid],
4259 seq.ccmp.pn,
4260 IEEE80211_CCMP_PN_LEN);
4261 }
4262
4263 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
4264 }
4265
4266 /* in HW restart reuse the index, otherwise request a new one */
4267 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
4268 key_offset = key->hw_key_idx;
4269 else
4270 key_offset = STA_KEY_IDX_INVALID;
4271
4272 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4273 mvmsta->pairwise_cipher = key->cipher;
4274
4275 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n",
4276 sta ? sta->addr : NULL, key->keyidx);
4277
4278 if (sec_key_ver)
4279 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key);
4280 else
4281 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
4282
4283 if (ret) {
4284 IWL_WARN(mvm, "set key failed\n");
4285 key->hw_key_idx = STA_KEY_IDX_INVALID;
4286 if (ptk_pn) {
4287 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
4288 kfree(ptk_pn);
4289 }
4290 /*
4291 * can't add key for RX, but we don't need it
4292 * in the device for TX so still return 0,
4293 * unless we have new TX API where we cannot
4294 * put key material into the TX_CMD
4295 */
4296 if (iwl_mvm_has_new_tx_api(mvm))
4297 ret = -EOPNOTSUPP;
4298 else
4299 ret = 0;
4300 }
4301
4302 break;
4303 case DISABLE_KEY:
4304 if (vif->type == NL80211_IFTYPE_STATION &&
4305 (keyidx == 6 || keyidx == 7))
4306 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6],
4307 NULL);
4308
4309 ret = -ENOENT;
4310 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
4311 if (mvmvif->ap_early_keys[i] == key) {
4312 mvmvif->ap_early_keys[i] = NULL;
4313 ret = 0;
4314 }
4315 }
4316
4317 /* found in pending list - don't do anything else */
4318 if (ret == 0)
4319 break;
4320
4321 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
4322 ret = 0;
4323 break;
4324 }
4325
4326 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
4327 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
4328 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
4329 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
4330 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
4331 ptk_pn = rcu_dereference_protected(
4332 mvmsta->ptk_pn[keyidx],
4333 lockdep_is_held(&mvm->mutex));
4334 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
4335 if (ptk_pn)
4336 kfree_rcu(ptk_pn, rcu_head);
4337 }
4338
4339 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
4340 if (sec_key_ver)
4341 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key);
4342 else
4343 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
4344 break;
4345 default:
4346 ret = -EINVAL;
4347 }
4348
4349 return ret;
4350}
4351
4352int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
4353 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
4354 struct ieee80211_key_conf *key)
4355{
4356 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4357 int ret;
4358
4359 mutex_lock(&mvm->mutex);
4360 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key);
4361 mutex_unlock(&mvm->mutex);
4362
4363 return ret;
4364}
4365
4366void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
4367 struct ieee80211_vif *vif,
4368 struct ieee80211_key_conf *keyconf,
4369 struct ieee80211_sta *sta,
4370 u32 iv32, u16 *phase1key)
4371{
4372 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4373
4374 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
4375 return;
4376
4377 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
4378}
4379
4380
4381static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
4382 struct iwl_rx_packet *pkt, void *data)
4383{
4384 struct iwl_mvm *mvm =
4385 container_of(notif_wait, struct iwl_mvm, notif_wait);
4386 struct iwl_hs20_roc_res *resp;
4387 int resp_len = iwl_rx_packet_payload_len(pkt);
4388 struct iwl_mvm_time_event_data *te_data = data;
4389
4390 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
4391 return true;
4392
4393 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
4394 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
4395 return true;
4396 }
4397
4398 resp = (void *)pkt->data;
4399
4400 IWL_DEBUG_TE(mvm,
4401 "Aux ROC: Received response from ucode: status=%d uid=%d\n",
4402 resp->status, resp->event_unique_id);
4403
4404 te_data->uid = le32_to_cpu(resp->event_unique_id);
4405 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
4406 te_data->uid);
4407
4408 spin_lock_bh(&mvm->time_event_lock);
4409 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
4410 spin_unlock_bh(&mvm->time_event_lock);
4411
4412 return true;
4413}
4414
4415#define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
4416#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
4417#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
4418#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
4419#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
4420
4421static void iwl_mvm_roc_duration_and_delay(struct ieee80211_vif *vif,
4422 u32 duration_ms,
4423 u32 *duration_tu,
4424 u32 *delay)
4425{
4426 u32 dtim_interval = vif->bss_conf.dtim_period *
4427 vif->bss_conf.beacon_int;
4428
4429 *delay = AUX_ROC_MIN_DELAY;
4430 *duration_tu = MSEC_TO_TU(duration_ms);
4431
4432 /*
4433 * If we are associated we want the delay time to be at least one
4434 * dtim interval so that the FW can wait until after the DTIM and
4435 * then start the time event, this will potentially allow us to
4436 * remain off-channel for the max duration.
4437 * Since we want to use almost a whole dtim interval we would also
4438 * like the delay to be for 2-3 dtim intervals, in case there are
4439 * other time events with higher priority.
4440 */
4441 if (vif->cfg.assoc) {
4442 *delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
4443 /* We cannot remain off-channel longer than the DTIM interval */
4444 if (dtim_interval <= *duration_tu) {
4445 *duration_tu = dtim_interval - AUX_ROC_SAFETY_BUFFER;
4446 if (*duration_tu <= AUX_ROC_MIN_DURATION)
4447 *duration_tu = dtim_interval -
4448 AUX_ROC_MIN_SAFETY_BUFFER;
4449 }
4450 }
4451}
4452
4453static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
4454 struct ieee80211_channel *channel,
4455 struct ieee80211_vif *vif,
4456 int duration)
4457{
4458 int res;
4459 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4460 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
4461 static const u16 time_event_response[] = { HOT_SPOT_CMD };
4462 struct iwl_notification_wait wait_time_event;
4463 u32 req_dur, delay;
4464 struct iwl_hs20_roc_req aux_roc_req = {
4465 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
4466 .id_and_color =
4467 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
4468 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
4469 };
4470 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm,
4471 &aux_roc_req.channel_info);
4472 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm);
4473
4474 /* Set the channel info data */
4475 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value,
4476 iwl_mvm_phy_band_from_nl80211(channel->band),
4477 IWL_PHY_CHANNEL_MODE20,
4478 0);
4479
4480 /* Set the time and duration */
4481 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm));
4482
4483 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay);
4484 tail->duration = cpu_to_le32(req_dur);
4485 tail->apply_time_max_delay = cpu_to_le32(delay);
4486
4487 IWL_DEBUG_TE(mvm,
4488 "ROC: Requesting to remain on channel %u for %ums\n",
4489 channel->hw_value, req_dur);
4490 IWL_DEBUG_TE(mvm,
4491 "\t(requested = %ums, max_delay = %ums)\n",
4492 duration, delay);
4493
4494 /* Set the node address */
4495 memcpy(tail->node_addr, vif->addr, ETH_ALEN);
4496
4497 lockdep_assert_held(&mvm->mutex);
4498
4499 spin_lock_bh(&mvm->time_event_lock);
4500
4501 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
4502 spin_unlock_bh(&mvm->time_event_lock);
4503 return -EIO;
4504 }
4505
4506 te_data->vif = vif;
4507 te_data->duration = duration;
4508 te_data->id = HOT_SPOT_CMD;
4509
4510 spin_unlock_bh(&mvm->time_event_lock);
4511
4512 /*
4513 * Use a notification wait, which really just processes the
4514 * command response and doesn't wait for anything, in order
4515 * to be able to process the response and get the UID inside
4516 * the RX path. Using CMD_WANT_SKB doesn't work because it
4517 * stores the buffer and then wakes up this thread, by which
4518 * time another notification (that the time event started)
4519 * might already be processed unsuccessfully.
4520 */
4521 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
4522 time_event_response,
4523 ARRAY_SIZE(time_event_response),
4524 iwl_mvm_rx_aux_roc, te_data);
4525
4526 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len,
4527 &aux_roc_req);
4528
4529 if (res) {
4530 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
4531 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
4532 goto out_clear_te;
4533 }
4534
4535 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
4536 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
4537 /* should never fail */
4538 WARN_ON_ONCE(res);
4539
4540 if (res) {
4541 out_clear_te:
4542 spin_lock_bh(&mvm->time_event_lock);
4543 iwl_mvm_te_clear_data(mvm, te_data);
4544 spin_unlock_bh(&mvm->time_event_lock);
4545 }
4546
4547 return res;
4548}
4549
4550static int iwl_mvm_roc_add_cmd(struct iwl_mvm *mvm,
4551 struct ieee80211_channel *channel,
4552 struct ieee80211_vif *vif,
4553 int duration, u32 activity)
4554{
4555 int res;
4556 u32 duration_tu, delay;
4557 struct iwl_roc_req roc_req = {
4558 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
4559 .activity = cpu_to_le32(activity),
4560 .sta_id = cpu_to_le32(mvm->aux_sta.sta_id),
4561 };
4562
4563 lockdep_assert_held(&mvm->mutex);
4564
4565 /* Set the channel info data */
4566 iwl_mvm_set_chan_info(mvm, &roc_req.channel_info,
4567 channel->hw_value,
4568 iwl_mvm_phy_band_from_nl80211(channel->band),
4569 IWL_PHY_CHANNEL_MODE20, 0);
4570
4571 iwl_mvm_roc_duration_and_delay(vif, duration, &duration_tu,
4572 &delay);
4573 roc_req.duration = cpu_to_le32(duration_tu);
4574 roc_req.max_delay = cpu_to_le32(delay);
4575
4576 IWL_DEBUG_TE(mvm,
4577 "\t(requested = %ums, max_delay = %ums)\n",
4578 duration, delay);
4579 IWL_DEBUG_TE(mvm,
4580 "Requesting to remain on channel %u for %utu\n",
4581 channel->hw_value, duration_tu);
4582
4583 /* Set the node address */
4584 memcpy(roc_req.node_addr, vif->addr, ETH_ALEN);
4585
4586 res = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(MAC_CONF_GROUP, ROC_CMD),
4587 0, sizeof(roc_req), &roc_req);
4588
4589 return res;
4590}
4591
4592static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id)
4593{
4594 int ret = 0;
4595
4596 lockdep_assert_held(&mvm->mutex);
4597
4598 if (!fw_has_capa(&mvm->fw->ucode_capa,
4599 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
4600 IWL_ERR(mvm, "hotspot not supported\n");
4601 return -EINVAL;
4602 }
4603
4604 if (iwl_mvm_has_new_station_api(mvm->fw)) {
4605 ret = iwl_mvm_add_aux_sta(mvm, lmac_id);
4606 WARN(ret, "Failed to allocate aux station");
4607 }
4608
4609 return ret;
4610}
4611
4612static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
4613{
4614 int ret;
4615
4616 lockdep_assert_held(&mvm->mutex);
4617
4618 ret = iwl_mvm_binding_add_vif(mvm, vif);
4619 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
4620 return ret;
4621
4622 /* The station and queue allocation must be done only after the binding
4623 * is done, as otherwise the FW might incorrectly configure its state.
4624 */
4625 return iwl_mvm_add_p2p_bcast_sta(mvm, vif);
4626}
4627
4628static int iwl_mvm_roc(struct ieee80211_hw *hw,
4629 struct ieee80211_vif *vif,
4630 struct ieee80211_channel *channel,
4631 int duration,
4632 enum ieee80211_roc_type type)
4633{
4634 static const struct iwl_mvm_roc_ops ops = {
4635 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20,
4636 .link = iwl_mvm_roc_link,
4637 };
4638
4639 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops);
4640}
4641
4642static int iwl_mvm_roc_station(struct iwl_mvm *mvm,
4643 struct ieee80211_channel *channel,
4644 struct ieee80211_vif *vif,
4645 int duration)
4646{
4647 int ret;
4648 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD);
4649 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
4650 IWL_FW_CMD_VER_UNKNOWN);
4651
4652 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) {
4653 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration);
4654 } else if (fw_ver == 3) {
4655 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration,
4656 ROC_ACTIVITY_HOTSPOT);
4657 } else {
4658 ret = -EOPNOTSUPP;
4659 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver);
4660 }
4661
4662 return ret;
4663}
4664
4665static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm,
4666 struct ieee80211_vif *vif,
4667 struct ieee80211_channel *channel)
4668{
4669 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4670 struct cfg80211_chan_def chandef;
4671 int i;
4672
4673 lockdep_assert_held(&mvm->mutex);
4674
4675 if (mvmvif->deflink.phy_ctxt &&
4676 channel == mvmvif->deflink.phy_ctxt->channel)
4677 return 0;
4678
4679 /* Try using a PHY context that is already in use */
4680 for (i = 0; i < NUM_PHY_CTX; i++) {
4681 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i];
4682
4683 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt)
4684 continue;
4685
4686 if (channel == phy_ctxt->channel) {
4687 if (mvmvif->deflink.phy_ctxt)
4688 iwl_mvm_phy_ctxt_unref(mvm,
4689 mvmvif->deflink.phy_ctxt);
4690
4691 mvmvif->deflink.phy_ctxt = phy_ctxt;
4692 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt);
4693 return 0;
4694 }
4695 }
4696
4697 /* We already have a phy_ctxt, but it's not on the right channel */
4698 if (mvmvif->deflink.phy_ctxt)
4699 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);
4700
4701 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
4702 if (!mvmvif->deflink.phy_ctxt)
4703 return -ENOSPC;
4704
4705 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
4706
4707 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt,
4708 &chandef, 1, 1);
4709}
4710
4711/* Execute the common part for MLD and non-MLD modes */
4712int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4713 struct ieee80211_channel *channel, int duration,
4714 enum ieee80211_roc_type type,
4715 const struct iwl_mvm_roc_ops *ops)
4716{
4717 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4718 u32 lmac_id;
4719 int ret;
4720
4721 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
4722 duration, type);
4723
4724 /*
4725 * Flush the done work, just in case it's still pending, so that
4726 * the work it does can complete and we can accept new frames.
4727 */
4728 flush_work(&mvm->roc_done_wk);
4729
4730 mutex_lock(&mvm->mutex);
4731
4732 switch (vif->type) {
4733 case NL80211_IFTYPE_STATION:
4734 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band);
4735
4736 /* Use aux roc framework (HS20) */
4737 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id);
4738 if (!ret)
4739 ret = iwl_mvm_roc_station(mvm, channel, vif, duration);
4740 goto out_unlock;
4741 case NL80211_IFTYPE_P2P_DEVICE:
4742 /* handle below */
4743 break;
4744 default:
4745 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type);
4746 ret = -EINVAL;
4747 goto out_unlock;
4748 }
4749
4750
4751 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel);
4752 if (ret)
4753 goto out_unlock;
4754
4755 ret = ops->link(mvm, vif);
4756 if (ret)
4757 goto out_unlock;
4758
4759 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
4760out_unlock:
4761 mutex_unlock(&mvm->mutex);
4762 IWL_DEBUG_MAC80211(mvm, "leave\n");
4763 return ret;
4764}
4765
4766int iwl_mvm_cancel_roc(struct ieee80211_hw *hw,
4767 struct ieee80211_vif *vif)
4768{
4769 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4770
4771 IWL_DEBUG_MAC80211(mvm, "enter\n");
4772
4773 mutex_lock(&mvm->mutex);
4774 iwl_mvm_stop_roc(mvm, vif);
4775 mutex_unlock(&mvm->mutex);
4776
4777 IWL_DEBUG_MAC80211(mvm, "leave\n");
4778 return 0;
4779}
4780
4781struct iwl_mvm_ftm_responder_iter_data {
4782 bool responder;
4783 struct ieee80211_chanctx_conf *ctx;
4784};
4785
4786static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac,
4787 struct ieee80211_vif *vif)
4788{
4789 struct iwl_mvm_ftm_responder_iter_data *data = _data;
4790
4791 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx &&
4792 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params)
4793 data->responder = true;
4794}
4795
4796static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm,
4797 struct ieee80211_chanctx_conf *ctx)
4798{
4799 struct iwl_mvm_ftm_responder_iter_data data = {
4800 .responder = false,
4801 .ctx = ctx,
4802 };
4803
4804 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
4805 IEEE80211_IFACE_ITER_NORMAL,
4806 iwl_mvm_ftm_responder_chanctx_iter,
4807 &data);
4808 return data.responder;
4809}
4810
4811static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
4812 struct ieee80211_chanctx_conf *ctx)
4813{
4814 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4815 struct iwl_mvm_phy_ctxt *phy_ctxt;
4816 bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) ||
4817 iwl_mvm_enable_fils(mvm, ctx);
4818 struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def;
4819 int ret;
4820
4821 lockdep_assert_held(&mvm->mutex);
4822
4823 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
4824
4825 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
4826 if (!phy_ctxt) {
4827 ret = -ENOSPC;
4828 goto out;
4829 }
4830
4831 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def,
4832 ctx->rx_chains_static,
4833 ctx->rx_chains_dynamic);
4834 if (ret) {
4835 IWL_ERR(mvm, "Failed to add PHY context\n");
4836 goto out;
4837 }
4838
4839 *phy_ctxt_id = phy_ctxt->id;
4840out:
4841 return ret;
4842}
4843
4844int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
4845 struct ieee80211_chanctx_conf *ctx)
4846{
4847 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4848 int ret;
4849
4850 mutex_lock(&mvm->mutex);
4851 ret = __iwl_mvm_add_chanctx(mvm, ctx);
4852 mutex_unlock(&mvm->mutex);
4853
4854 return ret;
4855}
4856
4857static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
4858 struct ieee80211_chanctx_conf *ctx)
4859{
4860 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4861 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4862
4863 lockdep_assert_held(&mvm->mutex);
4864
4865 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
4866}
4867
4868void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
4869 struct ieee80211_chanctx_conf *ctx)
4870{
4871 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4872
4873 mutex_lock(&mvm->mutex);
4874 __iwl_mvm_remove_chanctx(mvm, ctx);
4875 mutex_unlock(&mvm->mutex);
4876}
4877
4878void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
4879 struct ieee80211_chanctx_conf *ctx, u32 changed)
4880{
4881 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4882 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4883 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4884 bool use_def = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx) ||
4885 iwl_mvm_enable_fils(mvm, ctx);
4886 struct cfg80211_chan_def *def = use_def ? &ctx->def : &ctx->min_def;
4887
4888 if (WARN_ONCE((phy_ctxt->ref > 1) &&
4889 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
4890 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
4891 IEEE80211_CHANCTX_CHANGE_RADAR |
4892 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
4893 "Cannot change PHY. Ref=%d, changed=0x%X\n",
4894 phy_ctxt->ref, changed))
4895 return;
4896
4897 mutex_lock(&mvm->mutex);
4898
4899 /* we are only changing the min_width, may be a noop */
4900 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) {
4901 if (phy_ctxt->width == def->width)
4902 goto out_unlock;
4903
4904 /* we are just toggling between 20_NOHT and 20 */
4905 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&
4906 def->width <= NL80211_CHAN_WIDTH_20)
4907 goto out_unlock;
4908 }
4909
4910 iwl_mvm_bt_coex_vif_change(mvm);
4911 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def,
4912 ctx->rx_chains_static,
4913 ctx->rx_chains_dynamic);
4914
4915out_unlock:
4916 mutex_unlock(&mvm->mutex);
4917}
4918
4919/*
4920 * This function executes the common part for MLD and non-MLD modes.
4921 *
4922 * Returns true if we're done assigning the chanctx
4923 * (either on failure or success)
4924 */
4925static bool
4926__iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm,
4927 struct ieee80211_vif *vif,
4928 struct ieee80211_chanctx_conf *ctx,
4929 bool switching_chanctx, int *ret)
4930{
4931 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4932 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4933 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4934
4935 lockdep_assert_held(&mvm->mutex);
4936
4937 mvmvif->deflink.phy_ctxt = phy_ctxt;
4938
4939 switch (vif->type) {
4940 case NL80211_IFTYPE_AP:
4941 /* only needed if we're switching chanctx (i.e. during CSA) */
4942 if (switching_chanctx) {
4943 mvmvif->ap_ibss_active = true;
4944 break;
4945 }
4946 fallthrough;
4947 case NL80211_IFTYPE_ADHOC:
4948 /*
4949 * The AP binding flow is handled as part of the start_ap flow
4950 * (in bss_info_changed), similarly for IBSS.
4951 */
4952 *ret = 0;
4953 return true;
4954 case NL80211_IFTYPE_STATION:
4955 break;
4956 case NL80211_IFTYPE_MONITOR:
4957 /* always disable PS when a monitor interface is active */
4958 mvmvif->ps_disabled = true;
4959 break;
4960 default:
4961 *ret = -EINVAL;
4962 return true;
4963 }
4964 return false;
4965}
4966
4967static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
4968 struct ieee80211_vif *vif,
4969 struct ieee80211_bss_conf *link_conf,
4970 struct ieee80211_chanctx_conf *ctx,
4971 bool switching_chanctx)
4972{
4973 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4974 int ret;
4975
4976 if (WARN_ON(!link_conf))
4977 return -EINVAL;
4978
4979 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx,
4980 switching_chanctx, &ret))
4981 goto out;
4982
4983 ret = iwl_mvm_binding_add_vif(mvm, vif);
4984 if (ret)
4985 goto out;
4986
4987 /*
4988 * Power state must be updated before quotas,
4989 * otherwise fw will complain.
4990 */
4991 iwl_mvm_power_update_mac(mvm);
4992
4993 /* Setting the quota at this stage is only required for monitor
4994 * interfaces. For the other types, the bss_info changed flow
4995 * will handle quota settings.
4996 */
4997 if (vif->type == NL80211_IFTYPE_MONITOR) {
4998 mvmvif->monitor_active = true;
4999 ret = iwl_mvm_update_quotas(mvm, false, NULL);
5000 if (ret)
5001 goto out_remove_binding;
5002
5003 ret = iwl_mvm_add_snif_sta(mvm, vif);
5004 if (ret)
5005 goto out_remove_binding;
5006
5007 }
5008
5009 /* Handle binding during CSA */
5010 if (vif->type == NL80211_IFTYPE_AP) {
5011 iwl_mvm_update_quotas(mvm, false, NULL);
5012 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
5013 }
5014
5015 if (vif->type == NL80211_IFTYPE_STATION) {
5016 if (!switching_chanctx) {
5017 mvmvif->csa_bcn_pending = false;
5018 goto out;
5019 }
5020
5021 mvmvif->csa_bcn_pending = true;
5022
5023 if (!fw_has_capa(&mvm->fw->ucode_capa,
5024 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
5025 u32 duration = 5 * vif->bss_conf.beacon_int;
5026
5027 /* Protect the session to make sure we hear the first
5028 * beacon on the new channel.
5029 */
5030 iwl_mvm_protect_session(mvm, vif, duration, duration,
5031 vif->bss_conf.beacon_int / 2,
5032 true);
5033 }
5034
5035 iwl_mvm_update_quotas(mvm, false, NULL);
5036 }
5037
5038 goto out;
5039
5040out_remove_binding:
5041 iwl_mvm_binding_remove_vif(mvm, vif);
5042 iwl_mvm_power_update_mac(mvm);
5043out:
5044 if (ret)
5045 mvmvif->deflink.phy_ctxt = NULL;
5046 return ret;
5047}
5048
5049static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
5050 struct ieee80211_vif *vif,
5051 struct ieee80211_bss_conf *link_conf,
5052 struct ieee80211_chanctx_conf *ctx)
5053{
5054 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5055 int ret;
5056
5057 mutex_lock(&mvm->mutex);
5058 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false);
5059 mutex_unlock(&mvm->mutex);
5060
5061 return ret;
5062}
5063
5064/*
5065 * This function executes the common part for MLD and non-MLD modes.
5066 *
5067 * Returns if chanctx unassign chanctx is done
5068 * (either on failure or success)
5069 */
5070static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm,
5071 struct ieee80211_vif *vif,
5072 bool switching_chanctx)
5073{
5074 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5075
5076 lockdep_assert_held(&mvm->mutex);
5077 iwl_mvm_remove_time_event(mvm, mvmvif,
5078 &mvmvif->time_event_data);
5079
5080 switch (vif->type) {
5081 case NL80211_IFTYPE_ADHOC:
5082 return true;
5083 case NL80211_IFTYPE_MONITOR:
5084 mvmvif->monitor_active = false;
5085 mvmvif->ps_disabled = false;
5086 break;
5087 case NL80211_IFTYPE_AP:
5088 /* This part is triggered only during CSA */
5089 if (!switching_chanctx || !mvmvif->ap_ibss_active)
5090 return true;
5091
5092 mvmvif->csa_countdown = false;
5093
5094 /* Set CS bit on all the stations */
5095 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
5096
5097 /* Save blocked iface, the timeout is set on the next beacon */
5098 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
5099
5100 mvmvif->ap_ibss_active = false;
5101 break;
5102 default:
5103 break;
5104 }
5105 return false;
5106}
5107
5108static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
5109 struct ieee80211_vif *vif,
5110 struct ieee80211_bss_conf *link_conf,
5111 struct ieee80211_chanctx_conf *ctx,
5112 bool switching_chanctx)
5113{
5114 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5115 struct ieee80211_vif *disabled_vif = NULL;
5116
5117 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx))
5118 goto out;
5119
5120 if (vif->type == NL80211_IFTYPE_MONITOR)
5121 iwl_mvm_rm_snif_sta(mvm, vif);
5122
5123
5124 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) {
5125 disabled_vif = vif;
5126 if (!fw_has_capa(&mvm->fw->ucode_capa,
5127 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
5128 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
5129 }
5130
5131 iwl_mvm_update_quotas(mvm, false, disabled_vif);
5132 iwl_mvm_binding_remove_vif(mvm, vif);
5133
5134out:
5135 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) &&
5136 switching_chanctx)
5137 return;
5138 mvmvif->deflink.phy_ctxt = NULL;
5139 iwl_mvm_power_update_mac(mvm);
5140}
5141
5142static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
5143 struct ieee80211_vif *vif,
5144 struct ieee80211_bss_conf *link_conf,
5145 struct ieee80211_chanctx_conf *ctx)
5146{
5147 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5148
5149 mutex_lock(&mvm->mutex);
5150 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false);
5151 mutex_unlock(&mvm->mutex);
5152}
5153
5154static int
5155iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
5156 struct ieee80211_vif_chanctx_switch *vifs,
5157 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5158{
5159 int ret;
5160
5161 mutex_lock(&mvm->mutex);
5162 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5163 vifs[0].old_ctx, true);
5164 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
5165
5166 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
5167 if (ret) {
5168 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
5169 goto out_reassign;
5170 }
5171
5172 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5173 vifs[0].new_ctx, true);
5174 if (ret) {
5175 IWL_ERR(mvm,
5176 "failed to assign new_ctx during channel switch\n");
5177 goto out_remove;
5178 }
5179
5180 /* we don't support TDLS during DCM - can be caused by channel switch */
5181 if (iwl_mvm_phy_ctx_count(mvm) > 1)
5182 iwl_mvm_teardown_tdls_peers(mvm);
5183
5184 goto out;
5185
5186out_remove:
5187 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
5188
5189out_reassign:
5190 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
5191 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
5192 goto out_restart;
5193 }
5194
5195 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5196 vifs[0].old_ctx, true)) {
5197 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
5198 goto out_restart;
5199 }
5200
5201 goto out;
5202
5203out_restart:
5204 /* things keep failing, better restart the hw */
5205 iwl_mvm_nic_restart(mvm, false);
5206
5207out:
5208 mutex_unlock(&mvm->mutex);
5209
5210 return ret;
5211}
5212
5213static int
5214iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
5215 struct ieee80211_vif_chanctx_switch *vifs,
5216 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5217{
5218 int ret;
5219
5220 mutex_lock(&mvm->mutex);
5221 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5222 vifs[0].old_ctx, true);
5223
5224 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5225 vifs[0].new_ctx, true);
5226 if (ret) {
5227 IWL_ERR(mvm,
5228 "failed to assign new_ctx during channel switch\n");
5229 goto out_reassign;
5230 }
5231
5232 goto out;
5233
5234out_reassign:
5235 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5236 vifs[0].old_ctx, true)) {
5237 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
5238 goto out_restart;
5239 }
5240
5241 goto out;
5242
5243out_restart:
5244 /* things keep failing, better restart the hw */
5245 iwl_mvm_nic_restart(mvm, false);
5246
5247out:
5248 mutex_unlock(&mvm->mutex);
5249
5250 return ret;
5251}
5252
5253/* Execute the common part for both MLD and non-MLD modes */
5254int
5255iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw,
5256 struct ieee80211_vif_chanctx_switch *vifs,
5257 int n_vifs,
5258 enum ieee80211_chanctx_switch_mode mode,
5259 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5260{
5261 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5262 int ret;
5263
5264 /* we only support a single-vif right now */
5265 if (n_vifs > 1)
5266 return -EOPNOTSUPP;
5267
5268 switch (mode) {
5269 case CHANCTX_SWMODE_SWAP_CONTEXTS:
5270 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops);
5271 break;
5272 case CHANCTX_SWMODE_REASSIGN_VIF:
5273 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops);
5274 break;
5275 default:
5276 ret = -EOPNOTSUPP;
5277 break;
5278 }
5279
5280 return ret;
5281}
5282
5283static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
5284 struct ieee80211_vif_chanctx_switch *vifs,
5285 int n_vifs,
5286 enum ieee80211_chanctx_switch_mode mode)
5287{
5288 static const struct iwl_mvm_switch_vif_chanctx_ops ops = {
5289 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx,
5290 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx,
5291 };
5292
5293 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops);
5294}
5295
5296int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
5297{
5298 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5299
5300 return mvm->ibss_manager;
5301}
5302
5303static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
5304 bool set)
5305{
5306 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5307 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
5308
5309 if (!mvm_sta || !mvm_sta->vif) {
5310 IWL_ERR(mvm, "Station is not associated to a vif\n");
5311 return -EINVAL;
5312 }
5313
5314 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif,
5315 &mvm_sta->vif->bss_conf);
5316}
5317
5318#ifdef CONFIG_NL80211_TESTMODE
5319static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
5320 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
5321 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
5322 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
5323};
5324
5325static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
5326 struct ieee80211_vif *vif,
5327 void *data, int len)
5328{
5329 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
5330 int err;
5331 u32 noa_duration;
5332
5333 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len,
5334 iwl_mvm_tm_policy, NULL);
5335 if (err)
5336 return err;
5337
5338 if (!tb[IWL_MVM_TM_ATTR_CMD])
5339 return -EINVAL;
5340
5341 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
5342 case IWL_MVM_TM_CMD_SET_NOA:
5343 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
5344 !vif->bss_conf.enable_beacon ||
5345 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
5346 return -EINVAL;
5347
5348 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
5349 if (noa_duration >= vif->bss_conf.beacon_int)
5350 return -EINVAL;
5351
5352 mvm->noa_duration = noa_duration;
5353 mvm->noa_vif = vif;
5354
5355 return iwl_mvm_update_quotas(mvm, true, NULL);
5356 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
5357 /* must be associated client vif - ignore authorized */
5358 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
5359 !vif->cfg.assoc || !vif->bss_conf.dtim_period ||
5360 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
5361 return -EINVAL;
5362
5363 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
5364 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
5365 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
5366 }
5367
5368 return -EOPNOTSUPP;
5369}
5370
5371int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
5372 struct ieee80211_vif *vif,
5373 void *data, int len)
5374{
5375 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5376 int err;
5377
5378 mutex_lock(&mvm->mutex);
5379 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
5380 mutex_unlock(&mvm->mutex);
5381
5382 return err;
5383}
5384#endif
5385
5386void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5387 struct ieee80211_channel_switch *chsw)
5388{
5389 /* By implementing this operation, we prevent mac80211 from
5390 * starting its own channel switch timer, so that we can call
5391 * ieee80211_chswitch_done() ourselves at the right time
5392 * (which is when the absence time event starts).
5393 */
5394
5395 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
5396 "dummy channel switch op\n");
5397}
5398
5399static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm,
5400 struct ieee80211_vif *vif,
5401 struct ieee80211_channel_switch *chsw)
5402{
5403 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5404 struct iwl_chan_switch_te_cmd cmd = {
5405 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
5406 mvmvif->color)),
5407 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
5408 .tsf = cpu_to_le32(chsw->timestamp),
5409 .cs_count = chsw->count,
5410 .cs_mode = chsw->block_tx,
5411 };
5412
5413 lockdep_assert_held(&mvm->mutex);
5414
5415 if (chsw->delay)
5416 cmd.cs_delayed_bcn_count =
5417 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int);
5418
5419 return iwl_mvm_send_cmd_pdu(mvm,
5420 WIDE_ID(MAC_CONF_GROUP,
5421 CHANNEL_SWITCH_TIME_EVENT_CMD),
5422 0, sizeof(cmd), &cmd);
5423}
5424
5425static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm,
5426 struct ieee80211_vif *vif,
5427 struct ieee80211_channel_switch *chsw)
5428{
5429 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5430 u32 apply_time;
5431
5432 /* Schedule the time event to a bit before beacon 1,
5433 * to make sure we're in the new channel when the
5434 * GO/AP arrives. In case count <= 1 immediately schedule the
5435 * TE (this might result with some packet loss or connection
5436 * loss).
5437 */
5438 if (chsw->count <= 1)
5439 apply_time = 0;
5440 else
5441 apply_time = chsw->device_timestamp +
5442 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
5443 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
5444
5445 if (chsw->block_tx)
5446 iwl_mvm_csa_client_absent(mvm, vif);
5447
5448 if (mvmvif->bf_data.bf_enabled) {
5449 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
5450
5451 if (ret)
5452 return ret;
5453 }
5454
5455 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
5456 apply_time);
5457
5458 return 0;
5459}
5460
5461#define IWL_MAX_CSA_BLOCK_TX 1500
5462int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
5463 struct ieee80211_vif *vif,
5464 struct ieee80211_channel_switch *chsw)
5465{
5466 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5467 struct ieee80211_vif *csa_vif;
5468 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5469 int ret;
5470
5471 mutex_lock(&mvm->mutex);
5472
5473 mvmvif->csa_failed = false;
5474
5475 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
5476 chsw->chandef.center_freq1);
5477
5478 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
5479 ieee80211_vif_to_wdev(vif),
5480 FW_DBG_TRIGGER_CHANNEL_SWITCH);
5481
5482 switch (vif->type) {
5483 case NL80211_IFTYPE_AP:
5484 csa_vif =
5485 rcu_dereference_protected(mvm->csa_vif,
5486 lockdep_is_held(&mvm->mutex));
5487 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active,
5488 "Another CSA is already in progress")) {
5489 ret = -EBUSY;
5490 goto out_unlock;
5491 }
5492
5493 /* we still didn't unblock tx. prevent new CS meanwhile */
5494 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
5495 lockdep_is_held(&mvm->mutex))) {
5496 ret = -EBUSY;
5497 goto out_unlock;
5498 }
5499
5500 rcu_assign_pointer(mvm->csa_vif, vif);
5501
5502 if (WARN_ONCE(mvmvif->csa_countdown,
5503 "Previous CSA countdown didn't complete")) {
5504 ret = -EBUSY;
5505 goto out_unlock;
5506 }
5507
5508 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
5509
5510 break;
5511 case NL80211_IFTYPE_STATION:
5512 /*
5513 * In the new flow FW is in charge of timing the switch so there
5514 * is no need for all of this
5515 */
5516 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
5517 CHANNEL_SWITCH_ERROR_NOTIF,
5518 0))
5519 break;
5520
5521 /*
5522 * We haven't configured the firmware to be associated yet since
5523 * we don't know the dtim period. In this case, the firmware can't
5524 * track the beacons.
5525 */
5526 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) {
5527 ret = -EBUSY;
5528 goto out_unlock;
5529 }
5530
5531 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX &&
5532 hweight16(vif->valid_links) <= 1)
5533 schedule_delayed_work(&mvmvif->csa_work, 0);
5534
5535 if (chsw->block_tx) {
5536 /*
5537 * In case of undetermined / long time with immediate
5538 * quiet monitor status to gracefully disconnect
5539 */
5540 if (!chsw->count ||
5541 chsw->count * vif->bss_conf.beacon_int >
5542 IWL_MAX_CSA_BLOCK_TX)
5543 schedule_delayed_work(&mvmvif->csa_work,
5544 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX));
5545 }
5546
5547 if (!fw_has_capa(&mvm->fw->ucode_capa,
5548 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
5549 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw);
5550 if (ret)
5551 goto out_unlock;
5552 } else {
5553 iwl_mvm_schedule_client_csa(mvm, vif, chsw);
5554 }
5555
5556 mvmvif->csa_count = chsw->count;
5557 mvmvif->csa_misbehave = false;
5558 break;
5559 default:
5560 break;
5561 }
5562
5563 mvmvif->ps_disabled = true;
5564
5565 ret = iwl_mvm_power_update_ps(mvm);
5566 if (ret)
5567 goto out_unlock;
5568
5569 /* we won't be on this channel any longer */
5570 iwl_mvm_teardown_tdls_peers(mvm);
5571
5572out_unlock:
5573 mutex_unlock(&mvm->mutex);
5574
5575 return ret;
5576}
5577
5578void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw,
5579 struct ieee80211_vif *vif,
5580 struct ieee80211_channel_switch *chsw)
5581{
5582 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5583 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5584 struct iwl_chan_switch_te_cmd cmd = {
5585 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
5586 mvmvif->color)),
5587 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY),
5588 .tsf = cpu_to_le32(chsw->timestamp),
5589 .cs_count = chsw->count,
5590 .cs_mode = chsw->block_tx,
5591 };
5592
5593 /*
5594 * In the new flow FW is in charge of timing the switch so there is no
5595 * need for all of this
5596 */
5597 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
5598 CHANNEL_SWITCH_ERROR_NOTIF, 0))
5599 return;
5600
5601 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY))
5602 return;
5603
5604 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n",
5605 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx);
5606
5607 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) {
5608 if (mvmvif->csa_misbehave) {
5609 /* Second time, give up on this AP*/
5610 iwl_mvm_abort_channel_switch(hw, vif);
5611 ieee80211_chswitch_done(vif, false, 0);
5612 mvmvif->csa_misbehave = false;
5613 return;
5614 }
5615 mvmvif->csa_misbehave = true;
5616 }
5617 mvmvif->csa_count = chsw->count;
5618
5619 mutex_lock(&mvm->mutex);
5620 if (mvmvif->csa_failed)
5621 goto out_unlock;
5622
5623 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
5624 WIDE_ID(MAC_CONF_GROUP,
5625 CHANNEL_SWITCH_TIME_EVENT_CMD),
5626 0, sizeof(cmd), &cmd));
5627out_unlock:
5628 mutex_unlock(&mvm->mutex);
5629}
5630
5631static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
5632{
5633 int i;
5634
5635 if (!iwl_mvm_has_new_tx_api(mvm)) {
5636 if (drop) {
5637 mutex_lock(&mvm->mutex);
5638 iwl_mvm_flush_tx_path(mvm,
5639 iwl_mvm_flushable_queues(mvm) & queues);
5640 mutex_unlock(&mvm->mutex);
5641 } else {
5642 iwl_trans_wait_tx_queues_empty(mvm->trans, queues);
5643 }
5644 return;
5645 }
5646
5647 mutex_lock(&mvm->mutex);
5648 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
5649 struct ieee80211_sta *sta;
5650
5651 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
5652 lockdep_is_held(&mvm->mutex));
5653 if (IS_ERR_OR_NULL(sta))
5654 continue;
5655
5656 if (drop)
5657 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF);
5658 else
5659 iwl_mvm_wait_sta_queues_empty(mvm,
5660 iwl_mvm_sta_from_mac80211(sta));
5661 }
5662 mutex_unlock(&mvm->mutex);
5663}
5664
5665void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5666 u32 queues, bool drop)
5667{
5668 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5669 struct iwl_mvm_vif *mvmvif;
5670 struct iwl_mvm_sta *mvmsta;
5671 struct ieee80211_sta *sta;
5672 bool ap_sta_done = false;
5673 int i;
5674 u32 msk = 0;
5675
5676 if (!vif) {
5677 iwl_mvm_flush_no_vif(mvm, queues, drop);
5678 return;
5679 }
5680
5681 /* Make sure we're done with the deferred traffic before flushing */
5682 flush_work(&mvm->add_stream_wk);
5683
5684 mutex_lock(&mvm->mutex);
5685 mvmvif = iwl_mvm_vif_from_mac80211(vif);
5686
5687 /* flush the AP-station and all TDLS peers */
5688 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
5689 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
5690 lockdep_is_held(&mvm->mutex));
5691 if (IS_ERR_OR_NULL(sta))
5692 continue;
5693
5694 mvmsta = iwl_mvm_sta_from_mac80211(sta);
5695 if (mvmsta->vif != vif)
5696 continue;
5697
5698 if (sta == mvmvif->ap_sta) {
5699 if (ap_sta_done)
5700 continue;
5701 ap_sta_done = true;
5702 }
5703
5704 if (drop) {
5705 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id,
5706 mvmsta->tfd_queue_msk))
5707 IWL_ERR(mvm, "flush request fail\n");
5708 } else {
5709 if (iwl_mvm_has_new_tx_api(mvm))
5710 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
5711 else /* only used for !iwl_mvm_has_new_tx_api() below */
5712 msk |= mvmsta->tfd_queue_msk;
5713 }
5714 }
5715
5716 mutex_unlock(&mvm->mutex);
5717
5718 /* this can take a while, and we may need/want other operations
5719 * to succeed while doing this, so do it without the mutex held
5720 */
5721 if (!drop && !iwl_mvm_has_new_tx_api(mvm))
5722 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
5723}
5724
5725void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5726 struct ieee80211_sta *sta)
5727{
5728 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
5729 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5730 struct iwl_mvm_link_sta *mvm_link_sta;
5731 struct ieee80211_link_sta *link_sta;
5732 int link_id;
5733
5734 mutex_lock(&mvm->mutex);
5735 for_each_sta_active_link(vif, sta, link_sta, link_id) {
5736 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id],
5737 lockdep_is_held(&mvm->mutex));
5738 if (!mvm_link_sta)
5739 continue;
5740
5741 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id,
5742 mvmsta->tfd_queue_msk))
5743 IWL_ERR(mvm, "flush request fail\n");
5744 }
5745 mutex_unlock(&mvm->mutex);
5746}
5747
5748int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
5749 struct survey_info *survey)
5750{
5751 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5752 int ret = 0;
5753 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
5754 WIDE_ID(SYSTEM_GROUP,
5755 SYSTEM_STATISTICS_CMD),
5756 IWL_FW_CMD_VER_UNKNOWN);
5757
5758 memset(survey, 0, sizeof(*survey));
5759
5760 /* only support global statistics right now */
5761 if (idx != 0)
5762 return -ENOENT;
5763
5764 if (!fw_has_capa(&mvm->fw->ucode_capa,
5765 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
5766 return -ENOENT;
5767
5768 mutex_lock(&mvm->mutex);
5769
5770 if (iwl_mvm_firmware_running(mvm)) {
5771 ret = iwl_mvm_request_statistics(mvm, false);
5772 if (ret)
5773 goto out;
5774 }
5775
5776 survey->filled = SURVEY_INFO_TIME_RX |
5777 SURVEY_INFO_TIME_TX;
5778
5779 survey->time_rx = mvm->accu_radio_stats.rx_time +
5780 mvm->radio_stats.rx_time;
5781 do_div(survey->time_rx, USEC_PER_MSEC);
5782
5783 survey->time_tx = mvm->accu_radio_stats.tx_time +
5784 mvm->radio_stats.tx_time;
5785 do_div(survey->time_tx, USEC_PER_MSEC);
5786
5787 /* the new fw api doesn't support the following fields */
5788 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN)
5789 goto out;
5790
5791 survey->filled |= SURVEY_INFO_TIME |
5792 SURVEY_INFO_TIME_SCAN;
5793 survey->time = mvm->accu_radio_stats.on_time_rf +
5794 mvm->radio_stats.on_time_rf;
5795 do_div(survey->time, USEC_PER_MSEC);
5796
5797 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
5798 mvm->radio_stats.on_time_scan;
5799 do_div(survey->time_scan, USEC_PER_MSEC);
5800
5801 out:
5802 mutex_unlock(&mvm->mutex);
5803 return ret;
5804}
5805
5806static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo)
5807{
5808 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
5809 u32 gi_ltf;
5810
5811 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
5812 case RATE_MCS_CHAN_WIDTH_20:
5813 rinfo->bw = RATE_INFO_BW_20;
5814 break;
5815 case RATE_MCS_CHAN_WIDTH_40:
5816 rinfo->bw = RATE_INFO_BW_40;
5817 break;
5818 case RATE_MCS_CHAN_WIDTH_80:
5819 rinfo->bw = RATE_INFO_BW_80;
5820 break;
5821 case RATE_MCS_CHAN_WIDTH_160:
5822 rinfo->bw = RATE_INFO_BW_160;
5823 break;
5824 case RATE_MCS_CHAN_WIDTH_320:
5825 rinfo->bw = RATE_INFO_BW_320;
5826 break;
5827 }
5828
5829 if (format == RATE_MCS_CCK_MSK ||
5830 format == RATE_MCS_LEGACY_OFDM_MSK) {
5831 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK);
5832
5833 /* add the offset needed to get to the legacy ofdm indices */
5834 if (format == RATE_MCS_LEGACY_OFDM_MSK)
5835 rate += IWL_FIRST_OFDM_RATE;
5836
5837 switch (rate) {
5838 case IWL_RATE_1M_INDEX:
5839 rinfo->legacy = 10;
5840 break;
5841 case IWL_RATE_2M_INDEX:
5842 rinfo->legacy = 20;
5843 break;
5844 case IWL_RATE_5M_INDEX:
5845 rinfo->legacy = 55;
5846 break;
5847 case IWL_RATE_11M_INDEX:
5848 rinfo->legacy = 110;
5849 break;
5850 case IWL_RATE_6M_INDEX:
5851 rinfo->legacy = 60;
5852 break;
5853 case IWL_RATE_9M_INDEX:
5854 rinfo->legacy = 90;
5855 break;
5856 case IWL_RATE_12M_INDEX:
5857 rinfo->legacy = 120;
5858 break;
5859 case IWL_RATE_18M_INDEX:
5860 rinfo->legacy = 180;
5861 break;
5862 case IWL_RATE_24M_INDEX:
5863 rinfo->legacy = 240;
5864 break;
5865 case IWL_RATE_36M_INDEX:
5866 rinfo->legacy = 360;
5867 break;
5868 case IWL_RATE_48M_INDEX:
5869 rinfo->legacy = 480;
5870 break;
5871 case IWL_RATE_54M_INDEX:
5872 rinfo->legacy = 540;
5873 }
5874 return;
5875 }
5876
5877 rinfo->nss = u32_get_bits(rate_n_flags,
5878 RATE_MCS_NSS_MSK) + 1;
5879 rinfo->mcs = format == RATE_MCS_HT_MSK ?
5880 RATE_HT_MCS_INDEX(rate_n_flags) :
5881 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK);
5882
5883 if (rate_n_flags & RATE_MCS_SGI_MSK)
5884 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
5885
5886 switch (format) {
5887 case RATE_MCS_EHT_MSK:
5888 /* TODO: GI/LTF/RU. How does the firmware encode them? */
5889 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS;
5890 break;
5891 case RATE_MCS_HE_MSK:
5892 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK);
5893
5894 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS;
5895
5896 if (rate_n_flags & RATE_MCS_HE_106T_MSK) {
5897 rinfo->bw = RATE_INFO_BW_HE_RU;
5898 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106;
5899 }
5900
5901 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) {
5902 case RATE_MCS_HE_TYPE_SU:
5903 case RATE_MCS_HE_TYPE_EXT_SU:
5904 if (gi_ltf == 0 || gi_ltf == 1)
5905 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
5906 else if (gi_ltf == 2)
5907 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
5908 else if (gi_ltf == 3)
5909 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
5910 else
5911 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
5912 break;
5913 case RATE_MCS_HE_TYPE_MU:
5914 if (gi_ltf == 0 || gi_ltf == 1)
5915 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
5916 else if (gi_ltf == 2)
5917 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
5918 else
5919 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
5920 break;
5921 case RATE_MCS_HE_TYPE_TRIG:
5922 if (gi_ltf == 0 || gi_ltf == 1)
5923 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
5924 else
5925 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
5926 break;
5927 }
5928
5929 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK)
5930 rinfo->he_dcm = 1;
5931 break;
5932 case RATE_MCS_HT_MSK:
5933 rinfo->flags |= RATE_INFO_FLAGS_MCS;
5934 break;
5935 case RATE_MCS_VHT_MSK:
5936 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
5937 break;
5938 }
5939}
5940
5941void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
5942 struct ieee80211_vif *vif,
5943 struct ieee80211_sta *sta,
5944 struct station_info *sinfo)
5945{
5946 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5947 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5948 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
5949 int i;
5950
5951 if (mvmsta->deflink.avg_energy) {
5952 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy;
5953 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
5954 }
5955
5956 if (iwl_mvm_has_tlc_offload(mvm)) {
5957 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw;
5958
5959 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate);
5960 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
5961 }
5962
5963 /* if beacon filtering isn't on mac80211 does it anyway */
5964 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
5965 return;
5966
5967 if (!vif->cfg.assoc)
5968 return;
5969
5970 mutex_lock(&mvm->mutex);
5971
5972 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id)
5973 goto unlock;
5974
5975 if (iwl_mvm_request_statistics(mvm, false))
5976 goto unlock;
5977
5978 sinfo->rx_beacon = 0;
5979 for_each_mvm_vif_valid_link(mvmvif, i)
5980 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons +
5981 mvmvif->link[i]->beacon_stats.accu_num_beacons;
5982
5983 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX);
5984 if (mvmvif->deflink.beacon_stats.avg_signal) {
5985 /* firmware only reports a value after RXing a few beacons */
5986 sinfo->rx_beacon_signal_avg =
5987 mvmvif->deflink.beacon_stats.avg_signal;
5988 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
5989 }
5990 unlock:
5991 mutex_unlock(&mvm->mutex);
5992}
5993
5994static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm,
5995 struct ieee80211_vif *vif,
5996 const struct ieee80211_mlme_event *mlme)
5997{
5998 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) &&
5999 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) {
6000 iwl_dbg_tlv_time_point(&mvm->fwrt,
6001 IWL_FW_INI_TIME_POINT_ASSOC_FAILED,
6002 NULL);
6003 return;
6004 }
6005
6006 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) {
6007 iwl_dbg_tlv_time_point(&mvm->fwrt,
6008 IWL_FW_INI_TIME_POINT_DEASSOC,
6009 NULL);
6010 return;
6011 }
6012}
6013
6014static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
6015 struct ieee80211_vif *vif,
6016 const struct ieee80211_event *event)
6017{
6018#define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
6019 do { \
6020 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
6021 break; \
6022 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
6023 } while (0)
6024
6025 struct iwl_fw_dbg_trigger_tlv *trig;
6026 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
6027
6028 if (iwl_trans_dbg_ini_valid(mvm->trans)) {
6029 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme);
6030 return;
6031 }
6032
6033 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
6034 FW_DBG_TRIGGER_MLME);
6035 if (!trig)
6036 return;
6037
6038 trig_mlme = (void *)trig->data;
6039
6040 if (event->u.mlme.data == ASSOC_EVENT) {
6041 if (event->u.mlme.status == MLME_DENIED)
6042 CHECK_MLME_TRIGGER(stop_assoc_denied,
6043 "DENIED ASSOC: reason %d",
6044 event->u.mlme.reason);
6045 else if (event->u.mlme.status == MLME_TIMEOUT)
6046 CHECK_MLME_TRIGGER(stop_assoc_timeout,
6047 "ASSOC TIMEOUT");
6048 } else if (event->u.mlme.data == AUTH_EVENT) {
6049 if (event->u.mlme.status == MLME_DENIED)
6050 CHECK_MLME_TRIGGER(stop_auth_denied,
6051 "DENIED AUTH: reason %d",
6052 event->u.mlme.reason);
6053 else if (event->u.mlme.status == MLME_TIMEOUT)
6054 CHECK_MLME_TRIGGER(stop_auth_timeout,
6055 "AUTH TIMEOUT");
6056 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
6057 CHECK_MLME_TRIGGER(stop_rx_deauth,
6058 "DEAUTH RX %d", event->u.mlme.reason);
6059 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
6060 CHECK_MLME_TRIGGER(stop_tx_deauth,
6061 "DEAUTH TX %d", event->u.mlme.reason);
6062 }
6063#undef CHECK_MLME_TRIGGER
6064}
6065
6066static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
6067 struct ieee80211_vif *vif,
6068 const struct ieee80211_event *event)
6069{
6070 struct iwl_fw_dbg_trigger_tlv *trig;
6071 struct iwl_fw_dbg_trigger_ba *ba_trig;
6072
6073 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
6074 FW_DBG_TRIGGER_BA);
6075 if (!trig)
6076 return;
6077
6078 ba_trig = (void *)trig->data;
6079
6080 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
6081 return;
6082
6083 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
6084 "BAR received from %pM, tid %d, ssn %d",
6085 event->u.ba.sta->addr, event->u.ba.tid,
6086 event->u.ba.ssn);
6087}
6088
6089void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
6090 struct ieee80211_vif *vif,
6091 const struct ieee80211_event *event)
6092{
6093 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6094
6095 switch (event->type) {
6096 case MLME_EVENT:
6097 iwl_mvm_event_mlme_callback(mvm, vif, event);
6098 break;
6099 case BAR_RX_EVENT:
6100 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
6101 break;
6102 case BA_FRAME_TIMEOUT:
6103 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,
6104 event->u.ba.tid);
6105 break;
6106 default:
6107 break;
6108 }
6109}
6110
6111void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
6112 enum iwl_mvm_rxq_notif_type type,
6113 bool sync,
6114 const void *data, u32 size)
6115{
6116 struct {
6117 struct iwl_rxq_sync_cmd cmd;
6118 struct iwl_mvm_internal_rxq_notif notif;
6119 } __packed cmd = {
6120 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1),
6121 .cmd.count =
6122 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) +
6123 size),
6124 .notif.type = type,
6125 .notif.sync = sync,
6126 };
6127 struct iwl_host_cmd hcmd = {
6128 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD),
6129 .data[0] = &cmd,
6130 .len[0] = sizeof(cmd),
6131 .data[1] = data,
6132 .len[1] = size,
6133 .flags = sync ? 0 : CMD_ASYNC,
6134 };
6135 int ret;
6136
6137 /* size must be a multiple of DWORD */
6138 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3)))
6139 return;
6140
6141 if (!iwl_mvm_has_new_rx_api(mvm))
6142 return;
6143
6144 if (sync) {
6145 cmd.notif.cookie = mvm->queue_sync_cookie;
6146 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1;
6147 }
6148
6149 ret = iwl_mvm_send_cmd(mvm, &hcmd);
6150 if (ret) {
6151 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
6152 goto out;
6153 }
6154
6155 if (sync) {
6156 lockdep_assert_held(&mvm->mutex);
6157 ret = wait_event_timeout(mvm->rx_sync_waitq,
6158 READ_ONCE(mvm->queue_sync_state) == 0 ||
6159 iwl_mvm_is_radio_killed(mvm),
6160 HZ);
6161 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm),
6162 "queue sync: failed to sync, state is 0x%lx\n",
6163 mvm->queue_sync_state);
6164 }
6165
6166out:
6167 if (sync) {
6168 mvm->queue_sync_state = 0;
6169 mvm->queue_sync_cookie++;
6170 }
6171}
6172
6173void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
6174{
6175 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6176
6177 mutex_lock(&mvm->mutex);
6178 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0);
6179 mutex_unlock(&mvm->mutex);
6180}
6181
6182int
6183iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw,
6184 struct ieee80211_vif *vif,
6185 struct cfg80211_ftm_responder_stats *stats)
6186{
6187 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6188 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6189
6190 if (vif->p2p || vif->type != NL80211_IFTYPE_AP ||
6191 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder)
6192 return -EINVAL;
6193
6194 mutex_lock(&mvm->mutex);
6195 *stats = mvm->ftm_resp_stats;
6196 mutex_unlock(&mvm->mutex);
6197
6198 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) |
6199 BIT(NL80211_FTM_STATS_PARTIAL_NUM) |
6200 BIT(NL80211_FTM_STATS_FAILED_NUM) |
6201 BIT(NL80211_FTM_STATS_ASAP_NUM) |
6202 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) |
6203 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) |
6204 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) |
6205 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) |
6206 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM);
6207
6208 return 0;
6209}
6210
6211int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6212 struct cfg80211_pmsr_request *request)
6213{
6214 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6215 int ret;
6216
6217 mutex_lock(&mvm->mutex);
6218 ret = iwl_mvm_ftm_start(mvm, vif, request);
6219 mutex_unlock(&mvm->mutex);
6220
6221 return ret;
6222}
6223
6224void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6225 struct cfg80211_pmsr_request *request)
6226{
6227 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6228
6229 mutex_lock(&mvm->mutex);
6230 iwl_mvm_ftm_abort(mvm, request);
6231 mutex_unlock(&mvm->mutex);
6232}
6233
6234static bool iwl_mvm_can_hw_csum(struct sk_buff *skb)
6235{
6236 u8 protocol = ip_hdr(skb)->protocol;
6237
6238 if (!IS_ENABLED(CONFIG_INET))
6239 return false;
6240
6241 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP;
6242}
6243
6244static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw,
6245 struct sk_buff *head,
6246 struct sk_buff *skb)
6247{
6248 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6249
6250 /* For now don't aggregate IPv6 in AMSDU */
6251 if (skb->protocol != htons(ETH_P_IP))
6252 return false;
6253
6254 if (!iwl_mvm_is_csum_supported(mvm))
6255 return true;
6256
6257 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head);
6258}
6259
6260int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw,
6261 struct ieee80211_vif *vif,
6262 struct cfg80211_set_hw_timestamp *hwts)
6263{
6264 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6265 u32 protocols = 0;
6266 int ret;
6267
6268 /* HW timestamping is only supported for a specific station */
6269 if (!hwts->macaddr)
6270 return -EOPNOTSUPP;
6271
6272 if (hwts->enable)
6273 protocols =
6274 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM;
6275
6276 mutex_lock(&mvm->mutex);
6277 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols);
6278 mutex_unlock(&mvm->mutex);
6279
6280 return ret;
6281}
6282
6283const struct ieee80211_ops iwl_mvm_hw_ops = {
6284 .tx = iwl_mvm_mac_tx,
6285 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue,
6286 .ampdu_action = iwl_mvm_mac_ampdu_action,
6287 .get_antenna = iwl_mvm_op_get_antenna,
6288 .set_antenna = iwl_mvm_op_set_antenna,
6289 .start = iwl_mvm_mac_start,
6290 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
6291 .stop = iwl_mvm_mac_stop,
6292 .add_interface = iwl_mvm_mac_add_interface,
6293 .remove_interface = iwl_mvm_mac_remove_interface,
6294 .config = iwl_mvm_mac_config,
6295 .prepare_multicast = iwl_mvm_prepare_multicast,
6296 .configure_filter = iwl_mvm_configure_filter,
6297 .config_iface_filter = iwl_mvm_config_iface_filter,
6298 .bss_info_changed = iwl_mvm_bss_info_changed,
6299 .hw_scan = iwl_mvm_mac_hw_scan,
6300 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
6301 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
6302 .sta_state = iwl_mvm_mac_sta_state,
6303 .sta_notify = iwl_mvm_mac_sta_notify,
6304 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
6305 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
6306 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
6307 .sta_rc_update = iwl_mvm_sta_rc_update,
6308 .conf_tx = iwl_mvm_mac_conf_tx,
6309 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
6310 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx,
6311 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
6312 .flush = iwl_mvm_mac_flush,
6313 .flush_sta = iwl_mvm_mac_flush_sta,
6314 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
6315 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
6316 .set_key = iwl_mvm_mac_set_key,
6317 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
6318 .remain_on_channel = iwl_mvm_roc,
6319 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
6320 .add_chanctx = iwl_mvm_add_chanctx,
6321 .remove_chanctx = iwl_mvm_remove_chanctx,
6322 .change_chanctx = iwl_mvm_change_chanctx,
6323 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
6324 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
6325 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
6326
6327 .start_ap = iwl_mvm_start_ap,
6328 .stop_ap = iwl_mvm_stop_ap,
6329 .join_ibss = iwl_mvm_start_ibss,
6330 .leave_ibss = iwl_mvm_stop_ibss,
6331
6332 .tx_last_beacon = iwl_mvm_tx_last_beacon,
6333
6334 .set_tim = iwl_mvm_set_tim,
6335
6336 .channel_switch = iwl_mvm_channel_switch,
6337 .pre_channel_switch = iwl_mvm_pre_channel_switch,
6338 .post_channel_switch = iwl_mvm_post_channel_switch,
6339 .abort_channel_switch = iwl_mvm_abort_channel_switch,
6340 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon,
6341
6342 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
6343 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
6344 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
6345
6346 .event_callback = iwl_mvm_mac_event_callback,
6347
6348 .sync_rx_queues = iwl_mvm_sync_rx_queues,
6349
6350 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
6351
6352#ifdef CONFIG_PM_SLEEP
6353 /* look at d3.c */
6354 .suspend = iwl_mvm_suspend,
6355 .resume = iwl_mvm_resume,
6356 .set_wakeup = iwl_mvm_set_wakeup,
6357 .set_rekey_data = iwl_mvm_set_rekey_data,
6358#if IS_ENABLED(CONFIG_IPV6)
6359 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
6360#endif
6361 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
6362#endif
6363 .get_survey = iwl_mvm_mac_get_survey,
6364 .sta_statistics = iwl_mvm_mac_sta_statistics,
6365 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats,
6366 .start_pmsr = iwl_mvm_start_pmsr,
6367 .abort_pmsr = iwl_mvm_abort_pmsr,
6368
6369 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate,
6370#ifdef CONFIG_IWLWIFI_DEBUGFS
6371 .vif_add_debugfs = iwl_mvm_vif_add_debugfs,
6372 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs,
6373#endif
6374 .set_hw_timestamp = iwl_mvm_set_hw_timestamp,
6375};
1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
11 * Copyright(c) 2018 - 2019 Intel Corporation
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of version 2 of the GNU General Public License as
15 * published by the Free Software Foundation.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * The full GNU General Public License is included in this distribution
23 * in the file called COPYING.
24 *
25 * Contact Information:
26 * Intel Linux Wireless <linuxwifi@intel.com>
27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *
29 * BSD LICENSE
30 *
31 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
32 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
33 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
34 * Copyright(c) 2018 - 2019 Intel Corporation
35 * All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 *
41 * * Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * * Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in
45 * the documentation and/or other materials provided with the
46 * distribution.
47 * * Neither the name Intel Corporation nor the names of its
48 * contributors may be used to endorse or promote products derived
49 * from this software without specific prior written permission.
50 *
51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
52 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
53 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
54 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
55 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
56 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
61 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *
63 *****************************************************************************/
64#include <linux/kernel.h>
65#include <linux/slab.h>
66#include <linux/skbuff.h>
67#include <linux/netdevice.h>
68#include <linux/etherdevice.h>
69#include <linux/ip.h>
70#include <linux/if_arp.h>
71#include <linux/time.h>
72#include <net/mac80211.h>
73#include <net/ieee80211_radiotap.h>
74#include <net/tcp.h>
75
76#include "iwl-op-mode.h"
77#include "iwl-io.h"
78#include "mvm.h"
79#include "sta.h"
80#include "time-event.h"
81#include "iwl-eeprom-parse.h"
82#include "iwl-phy-db.h"
83#include "testmode.h"
84#include "fw/error-dump.h"
85#include "iwl-prph.h"
86#include "iwl-nvm-parse.h"
87
88static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
89 {
90 .max = 1,
91 .types = BIT(NL80211_IFTYPE_STATION),
92 },
93 {
94 .max = 1,
95 .types = BIT(NL80211_IFTYPE_AP) |
96 BIT(NL80211_IFTYPE_P2P_CLIENT) |
97 BIT(NL80211_IFTYPE_P2P_GO),
98 },
99 {
100 .max = 1,
101 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
102 },
103};
104
105static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
106 {
107 .num_different_channels = 2,
108 .max_interfaces = 3,
109 .limits = iwl_mvm_limits,
110 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
111 },
112};
113
114#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
115/*
116 * Use the reserved field to indicate magic values.
117 * these values will only be used internally by the driver,
118 * and won't make it to the fw (reserved will be 0).
119 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
120 * be the vif's ip address. in case there is not a single
121 * ip address (0, or more than 1), this attribute will
122 * be skipped.
123 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
124 * the LSB bytes of the vif's mac address
125 */
126enum {
127 BC_FILTER_MAGIC_NONE = 0,
128 BC_FILTER_MAGIC_IP,
129 BC_FILTER_MAGIC_MAC,
130};
131
132static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
133 {
134 /* arp */
135 .discard = 0,
136 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
137 .attrs = {
138 {
139 /* frame type - arp, hw type - ethernet */
140 .offset_type =
141 BCAST_FILTER_OFFSET_PAYLOAD_START,
142 .offset = sizeof(rfc1042_header),
143 .val = cpu_to_be32(0x08060001),
144 .mask = cpu_to_be32(0xffffffff),
145 },
146 {
147 /* arp dest ip */
148 .offset_type =
149 BCAST_FILTER_OFFSET_PAYLOAD_START,
150 .offset = sizeof(rfc1042_header) + 2 +
151 sizeof(struct arphdr) +
152 ETH_ALEN + sizeof(__be32) +
153 ETH_ALEN,
154 .mask = cpu_to_be32(0xffffffff),
155 /* mark it as special field */
156 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
157 },
158 },
159 },
160 {
161 /* dhcp offer bcast */
162 .discard = 0,
163 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
164 .attrs = {
165 {
166 /* udp dest port - 68 (bootp client)*/
167 .offset_type = BCAST_FILTER_OFFSET_IP_END,
168 .offset = offsetof(struct udphdr, dest),
169 .val = cpu_to_be32(0x00440000),
170 .mask = cpu_to_be32(0xffff0000),
171 },
172 {
173 /* dhcp - lsb bytes of client hw address */
174 .offset_type = BCAST_FILTER_OFFSET_IP_END,
175 .offset = 38,
176 .mask = cpu_to_be32(0xffffffff),
177 /* mark it as special field */
178 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
179 },
180 },
181 },
182 /* last filter must be empty */
183 {},
184};
185#endif
186
187static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = {
188 .max_peers = IWL_MVM_TOF_MAX_APS,
189 .report_ap_tsf = 1,
190 .randomize_mac_addr = 1,
191
192 .ftm = {
193 .supported = 1,
194 .asap = 1,
195 .non_asap = 1,
196 .request_lci = 1,
197 .request_civicloc = 1,
198 .max_bursts_exponent = -1, /* all supported */
199 .max_ftms_per_burst = 0, /* no limits */
200 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
201 BIT(NL80211_CHAN_WIDTH_20) |
202 BIT(NL80211_CHAN_WIDTH_40) |
203 BIT(NL80211_CHAN_WIDTH_80),
204 .preambles = BIT(NL80211_PREAMBLE_LEGACY) |
205 BIT(NL80211_PREAMBLE_HT) |
206 BIT(NL80211_PREAMBLE_VHT),
207 },
208};
209
210static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
211 enum set_key_cmd cmd,
212 struct ieee80211_vif *vif,
213 struct ieee80211_sta *sta,
214 struct ieee80211_key_conf *key);
215
216static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
217{
218 int i;
219
220 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
221 for (i = 0; i < NUM_PHY_CTX; i++) {
222 mvm->phy_ctxts[i].id = i;
223 mvm->phy_ctxts[i].ref = 0;
224 }
225}
226
227struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
228 const char *alpha2,
229 enum iwl_mcc_source src_id,
230 bool *changed)
231{
232 struct ieee80211_regdomain *regd = NULL;
233 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
234 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
235 struct iwl_mcc_update_resp *resp;
236
237 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
238
239 lockdep_assert_held(&mvm->mutex);
240
241 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
242 if (IS_ERR_OR_NULL(resp)) {
243 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
244 PTR_ERR_OR_ZERO(resp));
245 goto out;
246 }
247
248 if (changed) {
249 u32 status = le32_to_cpu(resp->status);
250
251 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE ||
252 status == MCC_RESP_ILLEGAL);
253 }
254
255 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
256 __le32_to_cpu(resp->n_channels),
257 resp->channels,
258 __le16_to_cpu(resp->mcc),
259 __le16_to_cpu(resp->geo_info));
260 /* Store the return source id */
261 src_id = resp->source_id;
262 kfree(resp);
263 if (IS_ERR_OR_NULL(regd)) {
264 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
265 PTR_ERR_OR_ZERO(regd));
266 goto out;
267 }
268
269 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
270 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
271 mvm->lar_regdom_set = true;
272 mvm->mcc_src = src_id;
273
274out:
275 return regd;
276}
277
278void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
279{
280 bool changed;
281 struct ieee80211_regdomain *regd;
282
283 if (!iwl_mvm_is_lar_supported(mvm))
284 return;
285
286 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
287 if (!IS_ERR_OR_NULL(regd)) {
288 /* only update the regulatory core if changed */
289 if (changed)
290 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
291
292 kfree(regd);
293 }
294}
295
296struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
297 bool *changed)
298{
299 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
300 iwl_mvm_is_wifi_mcc_supported(mvm) ?
301 MCC_SOURCE_GET_CURRENT :
302 MCC_SOURCE_OLD_FW, changed);
303}
304
305int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
306{
307 enum iwl_mcc_source used_src;
308 struct ieee80211_regdomain *regd;
309 int ret;
310 bool changed;
311 const struct ieee80211_regdomain *r =
312 rtnl_dereference(mvm->hw->wiphy->regd);
313
314 if (!r)
315 return -ENOENT;
316
317 /* save the last source in case we overwrite it below */
318 used_src = mvm->mcc_src;
319 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
320 /* Notify the firmware we support wifi location updates */
321 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
322 if (!IS_ERR_OR_NULL(regd))
323 kfree(regd);
324 }
325
326 /* Now set our last stored MCC and source */
327 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
328 &changed);
329 if (IS_ERR_OR_NULL(regd))
330 return -EIO;
331
332 /* update cfg80211 if the regdomain was changed */
333 if (changed)
334 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
335 else
336 ret = 0;
337
338 kfree(regd);
339 return ret;
340}
341
342const static u8 he_if_types_ext_capa_sta[] = {
343 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
344 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,
345 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF,
346 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT,
347};
348
349const static struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = {
350 {
351 .iftype = NL80211_IFTYPE_STATION,
352 .extended_capabilities = he_if_types_ext_capa_sta,
353 .extended_capabilities_mask = he_if_types_ext_capa_sta,
354 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta),
355 },
356};
357
358int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
359{
360 struct ieee80211_hw *hw = mvm->hw;
361 int num_mac, ret, i;
362 static const u32 mvm_ciphers[] = {
363 WLAN_CIPHER_SUITE_WEP40,
364 WLAN_CIPHER_SUITE_WEP104,
365 WLAN_CIPHER_SUITE_TKIP,
366 WLAN_CIPHER_SUITE_CCMP,
367 };
368#ifdef CONFIG_PM_SLEEP
369 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
370 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
371#endif
372
373 /* Tell mac80211 our characteristics */
374 ieee80211_hw_set(hw, SIGNAL_DBM);
375 ieee80211_hw_set(hw, SPECTRUM_MGMT);
376 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
377 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
378 ieee80211_hw_set(hw, SUPPORTS_PS);
379 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
380 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
381 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
382 ieee80211_hw_set(hw, CONNECTION_MONITOR);
383 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
384 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
385 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
386 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
387 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
388 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP);
389 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
390 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ);
391 ieee80211_hw_set(hw, STA_MMPDU_TXQ);
392 /*
393 * On older devices, enabling TX A-MSDU occasionally leads to
394 * something getting messed up, the command read from the FIFO
395 * gets out of sync and isn't a TX command, so that we have an
396 * assert EDC.
397 *
398 * It's not clear where the bug is, but since we didn't used to
399 * support A-MSDU until moving the mac80211 iTXQs, just leave it
400 * for older devices. We also don't see this issue on any newer
401 * devices.
402 */
403 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000)
404 ieee80211_hw_set(hw, TX_AMSDU);
405 ieee80211_hw_set(hw, TX_FRAG_LIST);
406
407 if (iwl_mvm_has_tlc_offload(mvm)) {
408 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
409 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
410 }
411
412 if (iwl_mvm_has_new_rx_api(mvm))
413 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
414
415 if (fw_has_capa(&mvm->fw->ucode_capa,
416 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
417 ieee80211_hw_set(hw, AP_LINK_PS);
418 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
419 /*
420 * we absolutely need this for the new TX API since that comes
421 * with many more queues than the current code can deal with
422 * for station powersave
423 */
424 return -EINVAL;
425 }
426
427 if (mvm->trans->num_rx_queues > 1)
428 ieee80211_hw_set(hw, USES_RSS);
429
430 if (mvm->trans->max_skb_frags)
431 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
432
433 hw->queues = IEEE80211_MAX_QUEUES;
434 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
435 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
436 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
437 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
438 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
439
440 hw->radiotap_timestamp.units_pos =
441 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
442 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
443 /* this is the case for CCK frames, it's better (only 8) for OFDM */
444 hw->radiotap_timestamp.accuracy = 22;
445
446 if (!iwl_mvm_has_tlc_offload(mvm))
447 hw->rate_control_algorithm = RS_NAME;
448
449 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
450 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
451 hw->max_tx_fragments = mvm->trans->max_skb_frags;
452
453 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
454 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
455 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
456 hw->wiphy->cipher_suites = mvm->ciphers;
457
458 if (iwl_mvm_has_new_rx_api(mvm)) {
459 mvm->ciphers[hw->wiphy->n_cipher_suites] =
460 WLAN_CIPHER_SUITE_GCMP;
461 hw->wiphy->n_cipher_suites++;
462 mvm->ciphers[hw->wiphy->n_cipher_suites] =
463 WLAN_CIPHER_SUITE_GCMP_256;
464 hw->wiphy->n_cipher_suites++;
465 }
466
467 /* Enable 11w if software crypto is not enabled (as the
468 * firmware will interpret some mgmt packets, so enabling it
469 * with software crypto isn't safe).
470 */
471 if (!iwlwifi_mod_params.swcrypto) {
472 ieee80211_hw_set(hw, MFP_CAPABLE);
473 mvm->ciphers[hw->wiphy->n_cipher_suites] =
474 WLAN_CIPHER_SUITE_AES_CMAC;
475 hw->wiphy->n_cipher_suites++;
476 if (iwl_mvm_has_new_rx_api(mvm)) {
477 mvm->ciphers[hw->wiphy->n_cipher_suites] =
478 WLAN_CIPHER_SUITE_BIP_GMAC_128;
479 hw->wiphy->n_cipher_suites++;
480 mvm->ciphers[hw->wiphy->n_cipher_suites] =
481 WLAN_CIPHER_SUITE_BIP_GMAC_256;
482 hw->wiphy->n_cipher_suites++;
483 }
484 }
485
486 /* currently FW API supports only one optional cipher scheme */
487 if (mvm->fw->cs[0].cipher) {
488 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0];
489 struct ieee80211_cipher_scheme *cs = &mvm->cs[0];
490
491 mvm->hw->n_cipher_schemes = 1;
492
493 cs->cipher = le32_to_cpu(fwcs->cipher);
494 cs->iftype = BIT(NL80211_IFTYPE_STATION);
495 cs->hdr_len = fwcs->hdr_len;
496 cs->pn_len = fwcs->pn_len;
497 cs->pn_off = fwcs->pn_off;
498 cs->key_idx_off = fwcs->key_idx_off;
499 cs->key_idx_mask = fwcs->key_idx_mask;
500 cs->key_idx_shift = fwcs->key_idx_shift;
501 cs->mic_len = fwcs->mic_len;
502
503 mvm->hw->cipher_schemes = mvm->cs;
504 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher;
505 hw->wiphy->n_cipher_suites++;
506 }
507
508 if (fw_has_capa(&mvm->fw->ucode_capa,
509 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) {
510 wiphy_ext_feature_set(hw->wiphy,
511 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);
512 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa;
513 }
514
515 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
516 hw->wiphy->features |=
517 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
518 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
519 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
520
521 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
522 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
523 hw->chanctx_data_size = sizeof(u16);
524 hw->txq_data_size = sizeof(struct iwl_mvm_txq);
525
526 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
527 BIT(NL80211_IFTYPE_P2P_CLIENT) |
528 BIT(NL80211_IFTYPE_AP) |
529 BIT(NL80211_IFTYPE_P2P_GO) |
530 BIT(NL80211_IFTYPE_P2P_DEVICE) |
531 BIT(NL80211_IFTYPE_ADHOC);
532
533 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
534 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
535 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS;
536
537 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
538 if (iwl_mvm_is_lar_supported(mvm))
539 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
540 else
541 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
542 REGULATORY_DISABLE_BEACON_HINTS;
543
544 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
545 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
546
547 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
548 hw->wiphy->n_iface_combinations =
549 ARRAY_SIZE(iwl_mvm_iface_combinations);
550
551 hw->wiphy->max_remain_on_channel_duration = 10000;
552 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
553
554 /* Extract MAC address */
555 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
556 hw->wiphy->addresses = mvm->addresses;
557 hw->wiphy->n_addresses = 1;
558
559 /* Extract additional MAC addresses if available */
560 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
561 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
562
563 for (i = 1; i < num_mac; i++) {
564 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
565 ETH_ALEN);
566 mvm->addresses[i].addr[5]++;
567 hw->wiphy->n_addresses++;
568 }
569
570 iwl_mvm_reset_phy_ctxts(mvm);
571
572 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
573
574 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
575
576 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
577 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
578 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
579
580 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
581 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
582 else
583 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
584
585 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
586 hw->wiphy->bands[NL80211_BAND_2GHZ] =
587 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
588 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
589 hw->wiphy->bands[NL80211_BAND_5GHZ] =
590 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
591
592 if (fw_has_capa(&mvm->fw->ucode_capa,
593 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
594 fw_has_api(&mvm->fw->ucode_capa,
595 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
596 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
597 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
598 }
599
600 hw->wiphy->hw_version = mvm->trans->hw_id;
601
602 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
603 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
604 else
605 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
606
607 hw->wiphy->max_sched_scan_reqs = 1;
608 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
609 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
610 /* we create the 802.11 header and zero length SSID IE. */
611 hw->wiphy->max_sched_scan_ie_len =
612 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
613 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
614 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
615
616 /*
617 * the firmware uses u8 for num of iterations, but 0xff is saved for
618 * infinite loop, so the maximum number of iterations is actually 254.
619 */
620 hw->wiphy->max_sched_scan_plan_iterations = 254;
621
622 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
623 NL80211_FEATURE_LOW_PRIORITY_SCAN |
624 NL80211_FEATURE_P2P_GO_OPPPS |
625 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
626 NL80211_FEATURE_DYNAMIC_SMPS |
627 NL80211_FEATURE_STATIC_SMPS |
628 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
629
630 if (fw_has_capa(&mvm->fw->ucode_capa,
631 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
632 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
633 if (fw_has_capa(&mvm->fw->ucode_capa,
634 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
635 hw->wiphy->features |= NL80211_FEATURE_QUIET;
636
637 if (fw_has_capa(&mvm->fw->ucode_capa,
638 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
639 hw->wiphy->features |=
640 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
641
642 if (fw_has_capa(&mvm->fw->ucode_capa,
643 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
644 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
645
646 if (fw_has_api(&mvm->fw->ucode_capa,
647 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
648 wiphy_ext_feature_set(hw->wiphy,
649 NL80211_EXT_FEATURE_SCAN_START_TIME);
650 wiphy_ext_feature_set(hw->wiphy,
651 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
652 wiphy_ext_feature_set(hw->wiphy,
653 NL80211_EXT_FEATURE_SET_SCAN_DWELL);
654 }
655
656 if (iwl_mvm_is_oce_supported(mvm)) {
657 wiphy_ext_feature_set(hw->wiphy,
658 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP);
659 wiphy_ext_feature_set(hw->wiphy,
660 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME);
661 wiphy_ext_feature_set(hw->wiphy,
662 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION);
663 wiphy_ext_feature_set(hw->wiphy,
664 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE);
665 }
666
667 if (mvm->nvm_data->sku_cap_11ax_enable &&
668 !iwlwifi_mod_params.disable_11ax) {
669 hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa;
670 hw->wiphy->num_iftype_ext_capab =
671 ARRAY_SIZE(he_iftypes_ext_capa);
672
673 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
674 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID);
675 }
676
677 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
678
679#ifdef CONFIG_PM_SLEEP
680 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) &&
681 mvm->trans->ops->d3_suspend &&
682 mvm->trans->ops->d3_resume &&
683 device_can_wakeup(mvm->trans->dev)) {
684 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
685 WIPHY_WOWLAN_DISCONNECT |
686 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
687 WIPHY_WOWLAN_RFKILL_RELEASE |
688 WIPHY_WOWLAN_NET_DETECT;
689 if (!iwlwifi_mod_params.swcrypto)
690 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
691 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
692 WIPHY_WOWLAN_4WAY_HANDSHAKE;
693
694 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
695 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
696 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
697 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
698 hw->wiphy->wowlan = &mvm->wowlan;
699 }
700#endif
701
702#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
703 /* assign default bcast filtering configuration */
704 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
705#endif
706
707 ret = iwl_mvm_leds_init(mvm);
708 if (ret)
709 return ret;
710
711 if (fw_has_capa(&mvm->fw->ucode_capa,
712 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
713 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
714 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
715 ieee80211_hw_set(hw, TDLS_WIDER_BW);
716 }
717
718 if (fw_has_capa(&mvm->fw->ucode_capa,
719 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
720 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
721 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
722 }
723
724 hw->netdev_features |= mvm->cfg->features;
725 if (!iwl_mvm_is_csum_supported(mvm)) {
726 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
727 NETIF_F_RXCSUM);
728 /* We may support SW TX CSUM */
729 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
730 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
731 }
732
733 if (mvm->cfg->vht_mu_mimo_supported)
734 wiphy_ext_feature_set(hw->wiphy,
735 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
736
737 ret = ieee80211_register_hw(mvm->hw);
738 if (ret) {
739 iwl_mvm_leds_exit(mvm);
740 }
741
742 return ret;
743}
744
745static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
746 struct ieee80211_tx_control *control,
747 struct sk_buff *skb)
748{
749 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
750 struct ieee80211_sta *sta = control->sta;
751 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
752 struct ieee80211_hdr *hdr = (void *)skb->data;
753 bool offchannel = IEEE80211_SKB_CB(skb)->flags &
754 IEEE80211_TX_CTL_TX_OFFCHAN;
755
756 if (iwl_mvm_is_radio_killed(mvm)) {
757 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
758 goto drop;
759 }
760
761 if (offchannel &&
762 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
763 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
764 goto drop;
765
766 /* treat non-bufferable MMPDUs on AP interfaces as broadcast */
767 if ((info->control.vif->type == NL80211_IFTYPE_AP ||
768 info->control.vif->type == NL80211_IFTYPE_ADHOC) &&
769 ieee80211_is_mgmt(hdr->frame_control) &&
770 !ieee80211_is_bufferable_mmpdu(hdr->frame_control))
771 sta = NULL;
772
773 /* If there is no sta, and it's not offchannel - send through AP */
774 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION &&
775 !offchannel) {
776 struct iwl_mvm_vif *mvmvif =
777 iwl_mvm_vif_from_mac80211(info->control.vif);
778 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id);
779
780 if (ap_sta_id < IWL_MVM_STATION_COUNT) {
781 /* mac80211 holds rcu read lock */
782 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]);
783 if (IS_ERR_OR_NULL(sta))
784 goto drop;
785 }
786 }
787
788 if (sta) {
789 if (iwl_mvm_tx_skb(mvm, skb, sta))
790 goto drop;
791 return;
792 }
793
794 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
795 goto drop;
796 return;
797 drop:
798 ieee80211_free_txskb(hw, skb);
799}
800
801void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq)
802{
803 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
804 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
805 struct sk_buff *skb = NULL;
806
807 /*
808 * No need for threads to be pending here, they can leave the first
809 * taker all the work.
810 *
811 * mvmtxq->tx_request logic:
812 *
813 * If 0, no one is currently TXing, set to 1 to indicate current thread
814 * will now start TX and other threads should quit.
815 *
816 * If 1, another thread is currently TXing, set to 2 to indicate to
817 * that thread that there was another request. Since that request may
818 * have raced with the check whether the queue is empty, the TXing
819 * thread should check the queue's status one more time before leaving.
820 * This check is done in order to not leave any TX hanging in the queue
821 * until the next TX invocation (which may not even happen).
822 *
823 * If 2, another thread is currently TXing, and it will already double
824 * check the queue, so do nothing.
825 */
826 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2))
827 return;
828
829 rcu_read_lock();
830 do {
831 while (likely(!mvmtxq->stopped &&
832 (mvm->trans->system_pm_mode ==
833 IWL_PLAT_PM_MODE_DISABLED))) {
834 skb = ieee80211_tx_dequeue(hw, txq);
835
836 if (!skb) {
837 if (txq->sta)
838 IWL_DEBUG_TX(mvm,
839 "TXQ of sta %pM tid %d is now empty\n",
840 txq->sta->addr,
841 txq->tid);
842 break;
843 }
844
845 if (!txq->sta)
846 iwl_mvm_tx_skb_non_sta(mvm, skb);
847 else
848 iwl_mvm_tx_skb(mvm, skb, txq->sta);
849 }
850 } while (atomic_dec_return(&mvmtxq->tx_request));
851 rcu_read_unlock();
852}
853
854static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw,
855 struct ieee80211_txq *txq)
856{
857 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
858 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
859
860 /*
861 * Please note that racing is handled very carefully here:
862 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is
863 * deleted afterwards.
864 * This means that if:
865 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list):
866 * queue is allocated and we can TX.
867 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list):
868 * a race, should defer the frame.
869 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list):
870 * need to allocate the queue and defer the frame.
871 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list):
872 * queue is already scheduled for allocation, no need to allocate,
873 * should defer the frame.
874 */
875
876 /* If the queue is allocated TX and return. */
877 if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) {
878 /*
879 * Check that list is empty to avoid a race where txq_id is
880 * already updated, but the queue allocation work wasn't
881 * finished
882 */
883 if (unlikely(txq->sta && !list_empty(&mvmtxq->list)))
884 return;
885
886 iwl_mvm_mac_itxq_xmit(hw, txq);
887 return;
888 }
889
890 /* The list is being deleted only after the queue is fully allocated. */
891 if (!list_empty(&mvmtxq->list))
892 return;
893
894 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs);
895 schedule_work(&mvm->add_stream_wk);
896}
897
898#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
899 do { \
900 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
901 break; \
902 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
903 } while (0)
904
905static void
906iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
907 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
908 enum ieee80211_ampdu_mlme_action action)
909{
910 struct iwl_fw_dbg_trigger_tlv *trig;
911 struct iwl_fw_dbg_trigger_ba *ba_trig;
912
913 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
914 FW_DBG_TRIGGER_BA);
915 if (!trig)
916 return;
917
918 ba_trig = (void *)trig->data;
919
920 switch (action) {
921 case IEEE80211_AMPDU_TX_OPERATIONAL: {
922 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
923 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
924
925 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
926 "TX AGG START: MAC %pM tid %d ssn %d\n",
927 sta->addr, tid, tid_data->ssn);
928 break;
929 }
930 case IEEE80211_AMPDU_TX_STOP_CONT:
931 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
932 "TX AGG STOP: MAC %pM tid %d\n",
933 sta->addr, tid);
934 break;
935 case IEEE80211_AMPDU_RX_START:
936 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
937 "RX AGG START: MAC %pM tid %d ssn %d\n",
938 sta->addr, tid, rx_ba_ssn);
939 break;
940 case IEEE80211_AMPDU_RX_STOP:
941 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
942 "RX AGG STOP: MAC %pM tid %d\n",
943 sta->addr, tid);
944 break;
945 default:
946 break;
947 }
948}
949
950static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
951 struct ieee80211_vif *vif,
952 struct ieee80211_ampdu_params *params)
953{
954 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
955 int ret;
956 struct ieee80211_sta *sta = params->sta;
957 enum ieee80211_ampdu_mlme_action action = params->action;
958 u16 tid = params->tid;
959 u16 *ssn = ¶ms->ssn;
960 u16 buf_size = params->buf_size;
961 bool amsdu = params->amsdu;
962 u16 timeout = params->timeout;
963
964 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
965 sta->addr, tid, action);
966
967 if (!(mvm->nvm_data->sku_cap_11n_enable))
968 return -EACCES;
969
970 mutex_lock(&mvm->mutex);
971
972 switch (action) {
973 case IEEE80211_AMPDU_RX_START:
974 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id ==
975 iwl_mvm_sta_from_mac80211(sta)->sta_id) {
976 struct iwl_mvm_vif *mvmvif;
977 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id;
978 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid];
979
980 mdata->opened_rx_ba_sessions = true;
981 mvmvif = iwl_mvm_vif_from_mac80211(vif);
982 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk);
983 }
984 if (!iwl_enable_rx_ampdu()) {
985 ret = -EINVAL;
986 break;
987 }
988 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
989 timeout);
990 break;
991 case IEEE80211_AMPDU_RX_STOP:
992 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
993 timeout);
994 break;
995 case IEEE80211_AMPDU_TX_START:
996 if (!iwl_enable_tx_ampdu()) {
997 ret = -EINVAL;
998 break;
999 }
1000 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
1001 break;
1002 case IEEE80211_AMPDU_TX_STOP_CONT:
1003 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
1004 break;
1005 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1006 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1007 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
1008 break;
1009 case IEEE80211_AMPDU_TX_OPERATIONAL:
1010 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
1011 buf_size, amsdu);
1012 break;
1013 default:
1014 WARN_ON_ONCE(1);
1015 ret = -EINVAL;
1016 break;
1017 }
1018
1019 if (!ret) {
1020 u16 rx_ba_ssn = 0;
1021
1022 if (action == IEEE80211_AMPDU_RX_START)
1023 rx_ba_ssn = *ssn;
1024
1025 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1026 rx_ba_ssn, action);
1027 }
1028 mutex_unlock(&mvm->mutex);
1029
1030 return ret;
1031}
1032
1033static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1034 struct ieee80211_vif *vif)
1035{
1036 struct iwl_mvm *mvm = data;
1037 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1038
1039 mvmvif->uploaded = false;
1040 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
1041
1042 spin_lock_bh(&mvm->time_event_lock);
1043 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1044 spin_unlock_bh(&mvm->time_event_lock);
1045
1046 mvmvif->phy_ctxt = NULL;
1047 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
1048 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data));
1049}
1050
1051static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1052{
1053 iwl_mvm_stop_device(mvm);
1054
1055 mvm->cur_aid = 0;
1056
1057 mvm->scan_status = 0;
1058 mvm->ps_disabled = false;
1059 mvm->rfkill_safe_init_done = false;
1060
1061 /* just in case one was running */
1062 iwl_mvm_cleanup_roc_te(mvm);
1063 ieee80211_remain_on_channel_expired(mvm->hw);
1064
1065 iwl_mvm_ftm_restart(mvm);
1066
1067 /*
1068 * cleanup all interfaces, even inactive ones, as some might have
1069 * gone down during the HW restart
1070 */
1071 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
1072
1073 mvm->p2p_device_vif = NULL;
1074
1075 iwl_mvm_reset_phy_ctxts(mvm);
1076 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1077 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1078 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1079
1080 ieee80211_wake_queues(mvm->hw);
1081
1082 mvm->vif_count = 0;
1083 mvm->rx_ba_sessions = 0;
1084 mvm->fwrt.dump.conf = FW_DBG_INVALID;
1085 mvm->monitor_on = false;
1086
1087 /* keep statistics ticking */
1088 iwl_mvm_accu_radio_stats(mvm);
1089}
1090
1091int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1092{
1093 int ret;
1094
1095 lockdep_assert_held(&mvm->mutex);
1096
1097 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1098 /*
1099 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1100 * so later code will - from now on - see that we're doing it.
1101 */
1102 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1103 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1104 /* Clean up some internal and mac80211 state on restart */
1105 iwl_mvm_restart_cleanup(mvm);
1106 }
1107 ret = iwl_mvm_up(mvm);
1108
1109 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT,
1110 NULL);
1111 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC,
1112 NULL);
1113
1114 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1115 /* Something went wrong - we need to finish some cleanup
1116 * that normally iwl_mvm_mac_restart_complete() below
1117 * would do.
1118 */
1119 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1120 }
1121
1122 return ret;
1123}
1124
1125static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1126{
1127 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1128 int ret;
1129
1130 mutex_lock(&mvm->mutex);
1131 ret = __iwl_mvm_mac_start(mvm);
1132 mutex_unlock(&mvm->mutex);
1133
1134 return ret;
1135}
1136
1137static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1138{
1139 int ret;
1140
1141 mutex_lock(&mvm->mutex);
1142
1143 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1144
1145 ret = iwl_mvm_update_quotas(mvm, true, NULL);
1146 if (ret)
1147 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1148 ret);
1149
1150 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY);
1151
1152 /*
1153 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1154 * of packets the FW sent out, so we must reconnect.
1155 */
1156 iwl_mvm_teardown_tdls_peers(mvm);
1157
1158 mutex_unlock(&mvm->mutex);
1159}
1160
1161static void
1162iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1163 enum ieee80211_reconfig_type reconfig_type)
1164{
1165 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1166
1167 switch (reconfig_type) {
1168 case IEEE80211_RECONFIG_TYPE_RESTART:
1169 iwl_mvm_restart_complete(mvm);
1170 break;
1171 case IEEE80211_RECONFIG_TYPE_SUSPEND:
1172 break;
1173 }
1174}
1175
1176void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1177{
1178 lockdep_assert_held(&mvm->mutex);
1179
1180 /* firmware counters are obviously reset now, but we shouldn't
1181 * partially track so also clear the fw_reset_accu counters.
1182 */
1183 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1184
1185 /* async_handlers_wk is now blocked */
1186
1187 /*
1188 * The work item could be running or queued if the
1189 * ROC time event stops just as we get here.
1190 */
1191 flush_work(&mvm->roc_done_wk);
1192
1193 iwl_mvm_stop_device(mvm);
1194
1195 iwl_mvm_async_handlers_purge(mvm);
1196 /* async_handlers_list is empty and will stay empty: HW is stopped */
1197
1198 /* the fw is stopped, the aux sta is dead: clean up driver state */
1199 iwl_mvm_del_aux_sta(mvm);
1200
1201 /*
1202 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the
1203 * hw (as restart_complete() won't be called in this case) and mac80211
1204 * won't execute the restart.
1205 * But make sure to cleanup interfaces that have gone down before/during
1206 * HW restart was requested.
1207 */
1208 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) ||
1209 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1210 &mvm->status))
1211 ieee80211_iterate_interfaces(mvm->hw, 0,
1212 iwl_mvm_cleanup_iterator, mvm);
1213
1214 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1215 * make sure there's nothing left there and warn if any is found.
1216 */
1217 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1218 int i;
1219
1220 for (i = 0; i < mvm->max_scans; i++) {
1221 if (WARN_ONCE(mvm->scan_uid_status[i],
1222 "UMAC scan UID %d status was not cleaned\n",
1223 i))
1224 mvm->scan_uid_status[i] = 0;
1225 }
1226 }
1227}
1228
1229static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1230{
1231 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1232
1233 flush_work(&mvm->async_handlers_wk);
1234 flush_work(&mvm->add_stream_wk);
1235
1236 /*
1237 * Lock and clear the firmware running bit here already, so that
1238 * new commands coming in elsewhere, e.g. from debugfs, will not
1239 * be able to proceed. This is important here because one of those
1240 * debugfs files causes the firmware dump to be triggered, and if we
1241 * don't stop debugfs accesses before canceling that it could be
1242 * retriggered after we flush it but before we've cleared the bit.
1243 */
1244 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1245
1246 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
1247 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
1248 iwl_fw_free_dump_desc(&mvm->fwrt);
1249
1250 mutex_lock(&mvm->mutex);
1251 __iwl_mvm_mac_stop(mvm);
1252 mutex_unlock(&mvm->mutex);
1253
1254 /*
1255 * The worker might have been waiting for the mutex, let it run and
1256 * discover that its list is now empty.
1257 */
1258 cancel_work_sync(&mvm->async_handlers_wk);
1259}
1260
1261static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1262{
1263 u16 i;
1264
1265 lockdep_assert_held(&mvm->mutex);
1266
1267 for (i = 0; i < NUM_PHY_CTX; i++)
1268 if (!mvm->phy_ctxts[i].ref)
1269 return &mvm->phy_ctxts[i];
1270
1271 IWL_ERR(mvm, "No available PHY context\n");
1272 return NULL;
1273}
1274
1275static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1276 s16 tx_power)
1277{
1278 int len;
1279 union {
1280 struct iwl_dev_tx_power_cmd v5;
1281 struct iwl_dev_tx_power_cmd_v4 v4;
1282 } cmd = {
1283 .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1284 .v5.v3.mac_context_id =
1285 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1286 .v5.v3.pwr_restriction = cpu_to_le16(8 * tx_power),
1287 };
1288
1289 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1290 cmd.v5.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1291
1292 if (fw_has_api(&mvm->fw->ucode_capa,
1293 IWL_UCODE_TLV_API_REDUCE_TX_POWER))
1294 len = sizeof(cmd.v5);
1295 else if (fw_has_capa(&mvm->fw->ucode_capa,
1296 IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1297 len = sizeof(cmd.v4);
1298 else
1299 len = sizeof(cmd.v4.v3);
1300
1301 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
1302}
1303
1304static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
1305 struct ieee80211_vif *vif)
1306{
1307 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1308 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1309 int ret;
1310
1311 mutex_lock(&mvm->mutex);
1312
1313 if (mvmvif->csa_failed) {
1314 mvmvif->csa_failed = false;
1315 ret = -EIO;
1316 goto out_unlock;
1317 }
1318
1319 if (vif->type == NL80211_IFTYPE_STATION) {
1320 struct iwl_mvm_sta *mvmsta;
1321
1322 mvmvif->csa_bcn_pending = false;
1323 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
1324 mvmvif->ap_sta_id);
1325
1326 if (WARN_ON(!mvmsta)) {
1327 ret = -EIO;
1328 goto out_unlock;
1329 }
1330
1331 if (!fw_has_capa(&mvm->fw->ucode_capa,
1332 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
1333 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
1334
1335 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1336
1337 if (!fw_has_capa(&mvm->fw->ucode_capa,
1338 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
1339 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1340 if (ret)
1341 goto out_unlock;
1342
1343 iwl_mvm_stop_session_protection(mvm, vif);
1344 }
1345 }
1346
1347 mvmvif->ps_disabled = false;
1348
1349 ret = iwl_mvm_power_update_ps(mvm);
1350
1351out_unlock:
1352 mutex_unlock(&mvm->mutex);
1353
1354 return ret;
1355}
1356
1357static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw,
1358 struct ieee80211_vif *vif)
1359{
1360 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1361 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1362 struct iwl_chan_switch_te_cmd cmd = {
1363 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
1364 mvmvif->color)),
1365 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),
1366 };
1367
1368 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id);
1369
1370 mutex_lock(&mvm->mutex);
1371 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
1372 WIDE_ID(MAC_CONF_GROUP,
1373 CHANNEL_SWITCH_TIME_EVENT_CMD),
1374 0, sizeof(cmd), &cmd));
1375 mutex_unlock(&mvm->mutex);
1376
1377 WARN_ON(iwl_mvm_post_channel_switch(hw, vif));
1378}
1379
1380static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk)
1381{
1382 struct iwl_mvm *mvm;
1383 struct iwl_mvm_vif *mvmvif;
1384 struct ieee80211_vif *vif;
1385
1386 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work);
1387 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1388 mvm = mvmvif->mvm;
1389
1390 iwl_mvm_abort_channel_switch(mvm->hw, vif);
1391 ieee80211_chswitch_done(vif, false);
1392}
1393
1394static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1395 struct ieee80211_vif *vif)
1396{
1397 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1398 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1399 int ret;
1400
1401 mvmvif->mvm = mvm;
1402 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL);
1403
1404 /*
1405 * Not much to do here. The stack will not allow interface
1406 * types or combinations that we didn't advertise, so we
1407 * don't really have to check the types.
1408 */
1409
1410 mutex_lock(&mvm->mutex);
1411
1412 /* make sure that beacon statistics don't go backwards with FW reset */
1413 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1414 mvmvif->beacon_stats.accu_num_beacons +=
1415 mvmvif->beacon_stats.num_beacons;
1416
1417 /* Allocate resources for the MAC context, and add it to the fw */
1418 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1419 if (ret)
1420 goto out_unlock;
1421
1422 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif);
1423
1424 /* Counting number of interfaces is needed for legacy PM */
1425 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1426 mvm->vif_count++;
1427
1428 /*
1429 * The AP binding flow can be done only after the beacon
1430 * template is configured (which happens only in the mac80211
1431 * start_ap() flow), and adding the broadcast station can happen
1432 * only after the binding.
1433 * In addition, since modifying the MAC before adding a bcast
1434 * station is not allowed by the FW, delay the adding of MAC context to
1435 * the point where we can also add the bcast station.
1436 * In short: there's not much we can do at this point, other than
1437 * allocating resources :)
1438 */
1439 if (vif->type == NL80211_IFTYPE_AP ||
1440 vif->type == NL80211_IFTYPE_ADHOC) {
1441 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1442 if (ret) {
1443 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1444 goto out_release;
1445 }
1446
1447 /*
1448 * Only queue for this station is the mcast queue,
1449 * which shouldn't be in TFD mask anyway
1450 */
1451 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta,
1452 0, vif->type,
1453 IWL_STA_MULTICAST);
1454 if (ret)
1455 goto out_release;
1456
1457 iwl_mvm_vif_dbgfs_register(mvm, vif);
1458 goto out_unlock;
1459 }
1460
1461 mvmvif->features |= hw->netdev_features;
1462
1463 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1464 if (ret)
1465 goto out_release;
1466
1467 ret = iwl_mvm_power_update_mac(mvm);
1468 if (ret)
1469 goto out_remove_mac;
1470
1471 /* beacon filtering */
1472 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1473 if (ret)
1474 goto out_remove_mac;
1475
1476 if (!mvm->bf_allowed_vif &&
1477 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1478 mvm->bf_allowed_vif = mvmvif;
1479 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1480 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1481 }
1482
1483 /*
1484 * P2P_DEVICE interface does not have a channel context assigned to it,
1485 * so a dedicated PHY context is allocated to it and the corresponding
1486 * MAC context is bound to it at this stage.
1487 */
1488 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1489
1490 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1491 if (!mvmvif->phy_ctxt) {
1492 ret = -ENOSPC;
1493 goto out_free_bf;
1494 }
1495
1496 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1497 ret = iwl_mvm_binding_add_vif(mvm, vif);
1498 if (ret)
1499 goto out_unref_phy;
1500
1501 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif);
1502 if (ret)
1503 goto out_unbind;
1504
1505 /* Save a pointer to p2p device vif, so it can later be used to
1506 * update the p2p device MAC when a GO is started/stopped */
1507 mvm->p2p_device_vif = vif;
1508 }
1509
1510 iwl_mvm_tcm_add_vif(mvm, vif);
1511 INIT_DELAYED_WORK(&mvmvif->csa_work,
1512 iwl_mvm_channel_switch_disconnect_wk);
1513
1514 if (vif->type == NL80211_IFTYPE_MONITOR)
1515 mvm->monitor_on = true;
1516
1517 iwl_mvm_vif_dbgfs_register(mvm, vif);
1518 goto out_unlock;
1519
1520 out_unbind:
1521 iwl_mvm_binding_remove_vif(mvm, vif);
1522 out_unref_phy:
1523 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1524 out_free_bf:
1525 if (mvm->bf_allowed_vif == mvmvif) {
1526 mvm->bf_allowed_vif = NULL;
1527 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1528 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1529 }
1530 out_remove_mac:
1531 mvmvif->phy_ctxt = NULL;
1532 iwl_mvm_mac_ctxt_remove(mvm, vif);
1533 out_release:
1534 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1535 mvm->vif_count--;
1536 out_unlock:
1537 mutex_unlock(&mvm->mutex);
1538
1539 return ret;
1540}
1541
1542static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1543 struct ieee80211_vif *vif)
1544{
1545 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1546 /*
1547 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1548 * We assume here that all the packets sent to the OFFCHANNEL
1549 * queue are sent in ROC session.
1550 */
1551 flush_work(&mvm->roc_done_wk);
1552 }
1553}
1554
1555static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1556 struct ieee80211_vif *vif)
1557{
1558 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1559 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1560 struct iwl_probe_resp_data *probe_data;
1561
1562 iwl_mvm_prepare_mac_removal(mvm, vif);
1563
1564 if (!(vif->type == NL80211_IFTYPE_AP ||
1565 vif->type == NL80211_IFTYPE_ADHOC))
1566 iwl_mvm_tcm_rm_vif(mvm, vif);
1567
1568 mutex_lock(&mvm->mutex);
1569
1570 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data,
1571 lockdep_is_held(&mvm->mutex));
1572 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL);
1573 if (probe_data)
1574 kfree_rcu(probe_data, rcu_head);
1575
1576 if (mvm->bf_allowed_vif == mvmvif) {
1577 mvm->bf_allowed_vif = NULL;
1578 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1579 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1580 }
1581
1582 if (vif->bss_conf.ftm_responder)
1583 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats));
1584
1585 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1586
1587 /*
1588 * For AP/GO interface, the tear down of the resources allocated to the
1589 * interface is be handled as part of the stop_ap flow.
1590 */
1591 if (vif->type == NL80211_IFTYPE_AP ||
1592 vif->type == NL80211_IFTYPE_ADHOC) {
1593#ifdef CONFIG_NL80211_TESTMODE
1594 if (vif == mvm->noa_vif) {
1595 mvm->noa_vif = NULL;
1596 mvm->noa_duration = 0;
1597 }
1598#endif
1599 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta);
1600 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1601 goto out_release;
1602 }
1603
1604 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1605 mvm->p2p_device_vif = NULL;
1606 iwl_mvm_rm_p2p_bcast_sta(mvm, vif);
1607 iwl_mvm_binding_remove_vif(mvm, vif);
1608 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1609 mvmvif->phy_ctxt = NULL;
1610 }
1611
1612 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1613 mvm->vif_count--;
1614
1615 iwl_mvm_power_update_mac(mvm);
1616 iwl_mvm_mac_ctxt_remove(mvm, vif);
1617
1618 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL);
1619
1620 if (vif->type == NL80211_IFTYPE_MONITOR)
1621 mvm->monitor_on = false;
1622
1623out_release:
1624 mutex_unlock(&mvm->mutex);
1625}
1626
1627static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1628{
1629 return 0;
1630}
1631
1632struct iwl_mvm_mc_iter_data {
1633 struct iwl_mvm *mvm;
1634 int port_id;
1635};
1636
1637static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1638 struct ieee80211_vif *vif)
1639{
1640 struct iwl_mvm_mc_iter_data *data = _data;
1641 struct iwl_mvm *mvm = data->mvm;
1642 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1643 struct iwl_host_cmd hcmd = {
1644 .id = MCAST_FILTER_CMD,
1645 .flags = CMD_ASYNC,
1646 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1647 };
1648 int ret, len;
1649
1650 /* if we don't have free ports, mcast frames will be dropped */
1651 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1652 return;
1653
1654 if (vif->type != NL80211_IFTYPE_STATION ||
1655 !vif->bss_conf.assoc)
1656 return;
1657
1658 cmd->port_id = data->port_id++;
1659 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1660 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1661
1662 hcmd.len[0] = len;
1663 hcmd.data[0] = cmd;
1664
1665 ret = iwl_mvm_send_cmd(mvm, &hcmd);
1666 if (ret)
1667 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1668}
1669
1670static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1671{
1672 struct iwl_mvm_mc_iter_data iter_data = {
1673 .mvm = mvm,
1674 };
1675
1676 lockdep_assert_held(&mvm->mutex);
1677
1678 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1679 return;
1680
1681 ieee80211_iterate_active_interfaces_atomic(
1682 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1683 iwl_mvm_mc_iface_iterator, &iter_data);
1684}
1685
1686static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1687 struct netdev_hw_addr_list *mc_list)
1688{
1689 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1690 struct iwl_mcast_filter_cmd *cmd;
1691 struct netdev_hw_addr *addr;
1692 int addr_count;
1693 bool pass_all;
1694 int len;
1695
1696 addr_count = netdev_hw_addr_list_count(mc_list);
1697 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1698 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1699 if (pass_all)
1700 addr_count = 0;
1701
1702 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1703 cmd = kzalloc(len, GFP_ATOMIC);
1704 if (!cmd)
1705 return 0;
1706
1707 if (pass_all) {
1708 cmd->pass_all = 1;
1709 return (u64)(unsigned long)cmd;
1710 }
1711
1712 netdev_hw_addr_list_for_each(addr, mc_list) {
1713 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1714 cmd->count, addr->addr);
1715 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1716 addr->addr, ETH_ALEN);
1717 cmd->count++;
1718 }
1719
1720 return (u64)(unsigned long)cmd;
1721}
1722
1723static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1724 unsigned int changed_flags,
1725 unsigned int *total_flags,
1726 u64 multicast)
1727{
1728 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1729 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1730
1731 mutex_lock(&mvm->mutex);
1732
1733 /* replace previous configuration */
1734 kfree(mvm->mcast_filter_cmd);
1735 mvm->mcast_filter_cmd = cmd;
1736
1737 if (!cmd)
1738 goto out;
1739
1740 if (changed_flags & FIF_ALLMULTI)
1741 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
1742
1743 if (cmd->pass_all)
1744 cmd->count = 0;
1745
1746 iwl_mvm_recalc_multicast(mvm);
1747out:
1748 mutex_unlock(&mvm->mutex);
1749 *total_flags = 0;
1750}
1751
1752static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1753 struct ieee80211_vif *vif,
1754 unsigned int filter_flags,
1755 unsigned int changed_flags)
1756{
1757 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1758
1759 /* We support only filter for probe requests */
1760 if (!(changed_flags & FIF_PROBE_REQ))
1761 return;
1762
1763 /* Supported only for p2p client interfaces */
1764 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1765 !vif->p2p)
1766 return;
1767
1768 mutex_lock(&mvm->mutex);
1769 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1770 mutex_unlock(&mvm->mutex);
1771}
1772
1773#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1774struct iwl_bcast_iter_data {
1775 struct iwl_mvm *mvm;
1776 struct iwl_bcast_filter_cmd *cmd;
1777 u8 current_filter;
1778};
1779
1780static void
1781iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1782 const struct iwl_fw_bcast_filter *in_filter,
1783 struct iwl_fw_bcast_filter *out_filter)
1784{
1785 struct iwl_fw_bcast_filter_attr *attr;
1786 int i;
1787
1788 memcpy(out_filter, in_filter, sizeof(*out_filter));
1789
1790 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1791 attr = &out_filter->attrs[i];
1792
1793 if (!attr->mask)
1794 break;
1795
1796 switch (attr->reserved1) {
1797 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1798 if (vif->bss_conf.arp_addr_cnt != 1) {
1799 attr->mask = 0;
1800 continue;
1801 }
1802
1803 attr->val = vif->bss_conf.arp_addr_list[0];
1804 break;
1805 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1806 attr->val = *(__be32 *)&vif->addr[2];
1807 break;
1808 default:
1809 break;
1810 }
1811 attr->reserved1 = 0;
1812 out_filter->num_attrs++;
1813 }
1814}
1815
1816static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1817 struct ieee80211_vif *vif)
1818{
1819 struct iwl_bcast_iter_data *data = _data;
1820 struct iwl_mvm *mvm = data->mvm;
1821 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1822 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1823 struct iwl_fw_bcast_mac *bcast_mac;
1824 int i;
1825
1826 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1827 return;
1828
1829 bcast_mac = &cmd->macs[mvmvif->id];
1830
1831 /*
1832 * enable filtering only for associated stations, but not for P2P
1833 * Clients
1834 */
1835 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1836 !vif->bss_conf.assoc)
1837 return;
1838
1839 bcast_mac->default_discard = 1;
1840
1841 /* copy all configured filters */
1842 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1843 /*
1844 * Make sure we don't exceed our filters limit.
1845 * if there is still a valid filter to be configured,
1846 * be on the safe side and just allow bcast for this mac.
1847 */
1848 if (WARN_ON_ONCE(data->current_filter >=
1849 ARRAY_SIZE(cmd->filters))) {
1850 bcast_mac->default_discard = 0;
1851 bcast_mac->attached_filters = 0;
1852 break;
1853 }
1854
1855 iwl_mvm_set_bcast_filter(vif,
1856 &mvm->bcast_filters[i],
1857 &cmd->filters[data->current_filter]);
1858
1859 /* skip current filter if it contains no attributes */
1860 if (!cmd->filters[data->current_filter].num_attrs)
1861 continue;
1862
1863 /* attach the filter to current mac */
1864 bcast_mac->attached_filters |=
1865 cpu_to_le16(BIT(data->current_filter));
1866
1867 data->current_filter++;
1868 }
1869}
1870
1871bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1872 struct iwl_bcast_filter_cmd *cmd)
1873{
1874 struct iwl_bcast_iter_data iter_data = {
1875 .mvm = mvm,
1876 .cmd = cmd,
1877 };
1878
1879 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1880 return false;
1881
1882 memset(cmd, 0, sizeof(*cmd));
1883 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1884 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1885
1886#ifdef CONFIG_IWLWIFI_DEBUGFS
1887 /* use debugfs filters/macs if override is configured */
1888 if (mvm->dbgfs_bcast_filtering.override) {
1889 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1890 sizeof(cmd->filters));
1891 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1892 sizeof(cmd->macs));
1893 return true;
1894 }
1895#endif
1896
1897 /* if no filters are configured, do nothing */
1898 if (!mvm->bcast_filters)
1899 return false;
1900
1901 /* configure and attach these filters for each associated sta vif */
1902 ieee80211_iterate_active_interfaces(
1903 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1904 iwl_mvm_bcast_filter_iterator, &iter_data);
1905
1906 return true;
1907}
1908
1909static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
1910{
1911 struct iwl_bcast_filter_cmd cmd;
1912
1913 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1914 return 0;
1915
1916 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1917 return 0;
1918
1919 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1920 sizeof(cmd), &cmd);
1921}
1922#else
1923static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
1924{
1925 return 0;
1926}
1927#endif
1928
1929static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1930 struct ieee80211_vif *vif)
1931{
1932 struct iwl_mu_group_mgmt_cmd cmd = {};
1933
1934 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1935 WLAN_MEMBERSHIP_LEN);
1936 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1937 WLAN_USER_POSITION_LEN);
1938
1939 return iwl_mvm_send_cmd_pdu(mvm,
1940 WIDE_ID(DATA_PATH_GROUP,
1941 UPDATE_MU_GROUPS_CMD),
1942 0, sizeof(cmd), &cmd);
1943}
1944
1945static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1946 struct ieee80211_vif *vif)
1947{
1948 if (vif->mu_mimo_owner) {
1949 struct iwl_mu_group_mgmt_notif *notif = _data;
1950
1951 /*
1952 * MU-MIMO Group Id action frame is little endian. We treat
1953 * the data received from firmware as if it came from the
1954 * action frame, so no conversion is needed.
1955 */
1956 ieee80211_update_mu_groups(vif,
1957 (u8 *)¬if->membership_status,
1958 (u8 *)¬if->user_position);
1959 }
1960}
1961
1962void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1963 struct iwl_rx_cmd_buffer *rxb)
1964{
1965 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1966 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1967
1968 ieee80211_iterate_active_interfaces_atomic(
1969 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1970 iwl_mvm_mu_mimo_iface_iterator, notif);
1971}
1972
1973static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit)
1974{
1975 u8 byte_num = ppe_pos_bit / 8;
1976 u8 bit_num = ppe_pos_bit % 8;
1977 u8 residue_bits;
1978 u8 res;
1979
1980 if (bit_num <= 5)
1981 return (ppe[byte_num] >> bit_num) &
1982 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1);
1983
1984 /*
1985 * If bit_num > 5, we have to combine bits with next byte.
1986 * Calculate how many bits we need to take from current byte (called
1987 * here "residue_bits"), and add them to bits from next byte.
1988 */
1989
1990 residue_bits = 8 - bit_num;
1991
1992 res = (ppe[byte_num + 1] &
1993 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) <<
1994 residue_bits;
1995 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1);
1996
1997 return res;
1998}
1999
2000static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm,
2001 struct ieee80211_vif *vif, u8 sta_id)
2002{
2003 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2004 struct iwl_he_sta_context_cmd sta_ctxt_cmd = {
2005 .sta_id = sta_id,
2006 .tid_limit = IWL_MAX_TID_COUNT,
2007 .bss_color = vif->bss_conf.bss_color,
2008 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext,
2009 .frame_time_rts_th =
2010 cpu_to_le16(vif->bss_conf.frame_time_rts_th),
2011 };
2012 int size = fw_has_api(&mvm->fw->ucode_capa,
2013 IWL_UCODE_TLV_API_MBSSID_HE) ?
2014 sizeof(sta_ctxt_cmd) :
2015 sizeof(struct iwl_he_sta_context_cmd_v1);
2016 struct ieee80211_sta *sta;
2017 u32 flags;
2018 int i;
2019
2020 rcu_read_lock();
2021
2022 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]);
2023 if (IS_ERR(sta)) {
2024 rcu_read_unlock();
2025 WARN(1, "Can't find STA to configure HE\n");
2026 return;
2027 }
2028
2029 if (!sta->he_cap.has_he) {
2030 rcu_read_unlock();
2031 return;
2032 }
2033
2034 flags = 0;
2035
2036 /* Block 26-tone RU OFDMA transmissions */
2037 if (mvmvif->he_ru_2mhz_block)
2038 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK;
2039
2040 /* HTC flags */
2041 if (sta->he_cap.he_cap_elem.mac_cap_info[0] &
2042 IEEE80211_HE_MAC_CAP0_HTC_HE)
2043 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT);
2044 if ((sta->he_cap.he_cap_elem.mac_cap_info[1] &
2045 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) ||
2046 (sta->he_cap.he_cap_elem.mac_cap_info[2] &
2047 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) {
2048 u8 link_adap =
2049 ((sta->he_cap.he_cap_elem.mac_cap_info[2] &
2050 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) +
2051 (sta->he_cap.he_cap_elem.mac_cap_info[1] &
2052 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION);
2053
2054 if (link_adap == 2)
2055 sta_ctxt_cmd.htc_flags |=
2056 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED);
2057 else if (link_adap == 3)
2058 sta_ctxt_cmd.htc_flags |=
2059 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH);
2060 }
2061 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR)
2062 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP);
2063 if (sta->he_cap.he_cap_elem.mac_cap_info[3] &
2064 IEEE80211_HE_MAC_CAP3_OMI_CONTROL)
2065 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP);
2066 if (sta->he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR)
2067 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP);
2068
2069 /*
2070 * Initialize the PPE thresholds to "None" (7), as described in Table
2071 * 9-262ac of 80211.ax/D3.0.
2072 */
2073 memset(&sta_ctxt_cmd.pkt_ext, 7, sizeof(sta_ctxt_cmd.pkt_ext));
2074
2075 /* If PPE Thresholds exist, parse them into a FW-familiar format. */
2076 if (sta->he_cap.he_cap_elem.phy_cap_info[6] &
2077 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2078 u8 nss = (sta->he_cap.ppe_thres[0] &
2079 IEEE80211_PPE_THRES_NSS_MASK) + 1;
2080 u8 ru_index_bitmap =
2081 (sta->he_cap.ppe_thres[0] &
2082 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK) >>
2083 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS;
2084 u8 *ppe = &sta->he_cap.ppe_thres[0];
2085 u8 ppe_pos_bit = 7; /* Starting after PPE header */
2086
2087 /*
2088 * FW currently supports only nss == MAX_HE_SUPP_NSS
2089 *
2090 * If nss > MAX: we can ignore values we don't support
2091 * If nss < MAX: we can set zeros in other streams
2092 */
2093 if (nss > MAX_HE_SUPP_NSS) {
2094 IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,
2095 MAX_HE_SUPP_NSS);
2096 nss = MAX_HE_SUPP_NSS;
2097 }
2098
2099 for (i = 0; i < nss; i++) {
2100 u8 ru_index_tmp = ru_index_bitmap << 1;
2101 u8 bw;
2102
2103 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; bw++) {
2104 ru_index_tmp >>= 1;
2105 if (!(ru_index_tmp & 1))
2106 continue;
2107
2108 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][1] =
2109 iwl_mvm_he_get_ppe_val(ppe,
2110 ppe_pos_bit);
2111 ppe_pos_bit +=
2112 IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2113 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0] =
2114 iwl_mvm_he_get_ppe_val(ppe,
2115 ppe_pos_bit);
2116 ppe_pos_bit +=
2117 IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2118 }
2119 }
2120
2121 flags |= STA_CTXT_HE_PACKET_EXT;
2122 } else if ((sta->he_cap.he_cap_elem.phy_cap_info[9] &
2123 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) !=
2124 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_RESERVED) {
2125 int low_th = -1;
2126 int high_th = -1;
2127
2128 /* Take the PPE thresholds from the nominal padding info */
2129 switch (sta->he_cap.he_cap_elem.phy_cap_info[9] &
2130 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
2131 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
2132 low_th = IWL_HE_PKT_EXT_NONE;
2133 high_th = IWL_HE_PKT_EXT_NONE;
2134 break;
2135 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
2136 low_th = IWL_HE_PKT_EXT_BPSK;
2137 high_th = IWL_HE_PKT_EXT_NONE;
2138 break;
2139 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
2140 low_th = IWL_HE_PKT_EXT_NONE;
2141 high_th = IWL_HE_PKT_EXT_BPSK;
2142 break;
2143 }
2144
2145 /* Set the PPE thresholds accordingly */
2146 if (low_th >= 0 && high_th >= 0) {
2147 struct iwl_he_pkt_ext *pkt_ext =
2148 (struct iwl_he_pkt_ext *)&sta_ctxt_cmd.pkt_ext;
2149
2150 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2151 u8 bw;
2152
2153 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX;
2154 bw++) {
2155 pkt_ext->pkt_ext_qam_th[i][bw][0] =
2156 low_th;
2157 pkt_ext->pkt_ext_qam_th[i][bw][1] =
2158 high_th;
2159 }
2160 }
2161
2162 flags |= STA_CTXT_HE_PACKET_EXT;
2163 }
2164 }
2165 rcu_read_unlock();
2166
2167 /* Mark MU EDCA as enabled, unless none detected on some AC */
2168 flags |= STA_CTXT_HE_MU_EDCA_CW;
2169 for (i = 0; i < IEEE80211_NUM_ACS; i++) {
2170 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca =
2171 &mvmvif->queue_params[i].mu_edca_param_rec;
2172 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i);
2173
2174 if (!mvmvif->queue_params[i].mu_edca) {
2175 flags &= ~STA_CTXT_HE_MU_EDCA_CW;
2176 break;
2177 }
2178
2179 sta_ctxt_cmd.trig_based_txf[ac].cwmin =
2180 cpu_to_le16(mu_edca->ecw_min_max & 0xf);
2181 sta_ctxt_cmd.trig_based_txf[ac].cwmax =
2182 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4);
2183 sta_ctxt_cmd.trig_based_txf[ac].aifsn =
2184 cpu_to_le16(mu_edca->aifsn);
2185 sta_ctxt_cmd.trig_based_txf[ac].mu_time =
2186 cpu_to_le16(mu_edca->mu_edca_timer);
2187 }
2188
2189 if (vif->bss_conf.multi_sta_back_32bit)
2190 flags |= STA_CTXT_HE_32BIT_BA_BITMAP;
2191
2192 if (vif->bss_conf.ack_enabled)
2193 flags |= STA_CTXT_HE_ACK_ENABLED;
2194
2195 if (vif->bss_conf.uora_exists) {
2196 flags |= STA_CTXT_HE_TRIG_RND_ALLOC;
2197
2198 sta_ctxt_cmd.rand_alloc_ecwmin =
2199 vif->bss_conf.uora_ocw_range & 0x7;
2200 sta_ctxt_cmd.rand_alloc_ecwmax =
2201 (vif->bss_conf.uora_ocw_range >> 3) & 0x7;
2202 }
2203
2204 if (vif->bss_conf.nontransmitted) {
2205 flags |= STA_CTXT_HE_REF_BSSID_VALID;
2206 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr,
2207 vif->bss_conf.transmitter_bssid);
2208 sta_ctxt_cmd.max_bssid_indicator =
2209 vif->bss_conf.bssid_indicator;
2210 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index;
2211 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap;
2212 sta_ctxt_cmd.profile_periodicity =
2213 vif->bss_conf.profile_periodicity;
2214 }
2215
2216 sta_ctxt_cmd.flags = cpu_to_le32(flags);
2217
2218 if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(STA_HE_CTXT_CMD,
2219 DATA_PATH_GROUP, 0),
2220 0, size, &sta_ctxt_cmd))
2221 IWL_ERR(mvm, "Failed to config FW to work HE!\n");
2222}
2223
2224static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2225 struct ieee80211_vif *vif,
2226 struct ieee80211_bss_conf *bss_conf,
2227 u32 changes)
2228{
2229 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2230 int ret;
2231
2232 /*
2233 * Re-calculate the tsf id, as the master-slave relations depend on the
2234 * beacon interval, which was not known when the station interface was
2235 * added.
2236 */
2237 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) {
2238 if (vif->bss_conf.he_support &&
2239 !iwlwifi_mod_params.disable_11ax)
2240 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id);
2241
2242 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2243 }
2244
2245 /* Update MU EDCA params */
2246 if (changes & BSS_CHANGED_QOS && mvmvif->associated &&
2247 bss_conf->assoc && vif->bss_conf.he_support &&
2248 !iwlwifi_mod_params.disable_11ax)
2249 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id);
2250
2251 /*
2252 * If we're not associated yet, take the (new) BSSID before associating
2253 * so the firmware knows. If we're already associated, then use the old
2254 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2255 * branch for disassociation below.
2256 */
2257 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2258 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2259
2260 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
2261 if (ret)
2262 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2263
2264 /* after sending it once, adopt mac80211 data */
2265 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2266 mvmvif->associated = bss_conf->assoc;
2267
2268 if (changes & BSS_CHANGED_ASSOC) {
2269 if (bss_conf->assoc) {
2270 /* clear statistics to get clean beacon counter */
2271 iwl_mvm_request_statistics(mvm, true);
2272 memset(&mvmvif->beacon_stats, 0,
2273 sizeof(mvmvif->beacon_stats));
2274
2275 /* add quota for this interface */
2276 ret = iwl_mvm_update_quotas(mvm, true, NULL);
2277 if (ret) {
2278 IWL_ERR(mvm, "failed to update quotas\n");
2279 return;
2280 }
2281
2282 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2283 &mvm->status)) {
2284 /*
2285 * If we're restarting then the firmware will
2286 * obviously have lost synchronisation with
2287 * the AP. It will attempt to synchronise by
2288 * itself, but we can make it more reliable by
2289 * scheduling a session protection time event.
2290 *
2291 * The firmware needs to receive a beacon to
2292 * catch up with synchronisation, use 110% of
2293 * the beacon interval.
2294 *
2295 * Set a large maximum delay to allow for more
2296 * than a single interface.
2297 */
2298 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2299 iwl_mvm_protect_session(mvm, vif, dur, dur,
2300 5 * dur, false);
2301 }
2302
2303 iwl_mvm_sf_update(mvm, vif, false);
2304 iwl_mvm_power_vif_assoc(mvm, vif);
2305 if (vif->p2p) {
2306 iwl_mvm_update_smps(mvm, vif,
2307 IWL_MVM_SMPS_REQ_PROT,
2308 IEEE80211_SMPS_DYNAMIC);
2309 }
2310 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) {
2311 /*
2312 * If update fails - SF might be running in associated
2313 * mode while disassociated - which is forbidden.
2314 */
2315 ret = iwl_mvm_sf_update(mvm, vif, false);
2316 WARN_ONCE(ret &&
2317 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
2318 &mvm->status),
2319 "Failed to update SF upon disassociation\n");
2320
2321 /*
2322 * If we get an assert during the connection (after the
2323 * station has been added, but before the vif is set
2324 * to associated), mac80211 will re-add the station and
2325 * then configure the vif. Since the vif is not
2326 * associated, we would remove the station here and
2327 * this would fail the recovery.
2328 */
2329 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2330 &mvm->status)) {
2331 /*
2332 * Remove AP station now that
2333 * the MAC is unassoc
2334 */
2335 ret = iwl_mvm_rm_sta_id(mvm, vif,
2336 mvmvif->ap_sta_id);
2337 if (ret)
2338 IWL_ERR(mvm,
2339 "failed to remove AP station\n");
2340
2341 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
2342 }
2343
2344 /* remove quota for this interface */
2345 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2346 if (ret)
2347 IWL_ERR(mvm, "failed to update quotas\n");
2348
2349 /* this will take the cleared BSSID from bss_conf */
2350 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2351 if (ret)
2352 IWL_ERR(mvm,
2353 "failed to update MAC %pM (clear after unassoc)\n",
2354 vif->addr);
2355 }
2356
2357 /*
2358 * The firmware tracks the MU-MIMO group on its own.
2359 * However, on HW restart we should restore this data.
2360 */
2361 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2362 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
2363 ret = iwl_mvm_update_mu_groups(mvm, vif);
2364 if (ret)
2365 IWL_ERR(mvm,
2366 "failed to update VHT MU_MIMO groups\n");
2367 }
2368
2369 iwl_mvm_recalc_multicast(mvm);
2370 iwl_mvm_configure_bcast_filter(mvm);
2371
2372 /* reset rssi values */
2373 mvmvif->bf_data.ave_beacon_signal = 0;
2374
2375 iwl_mvm_bt_coex_vif_change(mvm);
2376 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2377 IEEE80211_SMPS_AUTOMATIC);
2378 if (fw_has_capa(&mvm->fw->ucode_capa,
2379 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2380 iwl_mvm_config_scan(mvm);
2381 }
2382
2383 if (changes & BSS_CHANGED_BEACON_INFO) {
2384 /*
2385 * We received a beacon from the associated AP so
2386 * remove the session protection.
2387 */
2388 iwl_mvm_stop_session_protection(mvm, vif);
2389
2390 iwl_mvm_sf_update(mvm, vif, false);
2391 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2392 }
2393
2394 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2395 /*
2396 * Send power command on every beacon change,
2397 * because we may have not enabled beacon abort yet.
2398 */
2399 BSS_CHANGED_BEACON_INFO)) {
2400 ret = iwl_mvm_power_update_mac(mvm);
2401 if (ret)
2402 IWL_ERR(mvm, "failed to update power mode\n");
2403 }
2404
2405 if (changes & BSS_CHANGED_TXPOWER) {
2406 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2407 bss_conf->txpower);
2408 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2409 }
2410
2411 if (changes & BSS_CHANGED_CQM) {
2412 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
2413 /* reset cqm events tracking */
2414 mvmvif->bf_data.last_cqm_event = 0;
2415 if (mvmvif->bf_data.bf_enabled) {
2416 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2417 if (ret)
2418 IWL_ERR(mvm,
2419 "failed to update CQM thresholds\n");
2420 }
2421 }
2422
2423 if (changes & BSS_CHANGED_ARP_FILTER) {
2424 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2425 iwl_mvm_configure_bcast_filter(mvm);
2426 }
2427}
2428
2429static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2430 struct ieee80211_vif *vif)
2431{
2432 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2433 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2434 int ret, i;
2435
2436 mutex_lock(&mvm->mutex);
2437
2438 /* Send the beacon template */
2439 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2440 if (ret)
2441 goto out_unlock;
2442
2443 /*
2444 * Re-calculate the tsf id, as the master-slave relations depend on the
2445 * beacon interval, which was not known when the AP interface was added.
2446 */
2447 if (vif->type == NL80211_IFTYPE_AP)
2448 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2449
2450 mvmvif->ap_assoc_sta_count = 0;
2451
2452 /* Add the mac context */
2453 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2454 if (ret)
2455 goto out_unlock;
2456
2457 /* Perform the binding */
2458 ret = iwl_mvm_binding_add_vif(mvm, vif);
2459 if (ret)
2460 goto out_remove;
2461
2462 /*
2463 * This is not very nice, but the simplest:
2464 * For older FWs adding the mcast sta before the bcast station may
2465 * cause assert 0x2b00.
2466 * This is fixed in later FW so make the order of removal depend on
2467 * the TLV
2468 */
2469 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
2470 ret = iwl_mvm_add_mcast_sta(mvm, vif);
2471 if (ret)
2472 goto out_unbind;
2473 /*
2474 * Send the bcast station. At this stage the TBTT and DTIM time
2475 * events are added and applied to the scheduler
2476 */
2477 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2478 if (ret) {
2479 iwl_mvm_rm_mcast_sta(mvm, vif);
2480 goto out_unbind;
2481 }
2482 } else {
2483 /*
2484 * Send the bcast station. At this stage the TBTT and DTIM time
2485 * events are added and applied to the scheduler
2486 */
2487 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2488 if (ret)
2489 goto out_unbind;
2490 ret = iwl_mvm_add_mcast_sta(mvm, vif);
2491 if (ret) {
2492 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2493 goto out_unbind;
2494 }
2495 }
2496
2497 /* must be set before quota calculations */
2498 mvmvif->ap_ibss_active = true;
2499
2500 /* send all the early keys to the device now */
2501 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
2502 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i];
2503
2504 if (!key)
2505 continue;
2506
2507 mvmvif->ap_early_keys[i] = NULL;
2508
2509 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key);
2510 if (ret)
2511 goto out_quota_failed;
2512 }
2513
2514 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2515 iwl_mvm_vif_set_low_latency(mvmvif, true,
2516 LOW_LATENCY_VIF_TYPE);
2517 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);
2518 }
2519
2520 /* power updated needs to be done before quotas */
2521 iwl_mvm_power_update_mac(mvm);
2522
2523 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2524 if (ret)
2525 goto out_quota_failed;
2526
2527 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2528 if (vif->p2p && mvm->p2p_device_vif)
2529 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2530
2531 iwl_mvm_bt_coex_vif_change(mvm);
2532
2533 /* we don't support TDLS during DCM */
2534 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2535 iwl_mvm_teardown_tdls_peers(mvm);
2536
2537 iwl_mvm_ftm_restart_responder(mvm, vif);
2538
2539 goto out_unlock;
2540
2541out_quota_failed:
2542 iwl_mvm_power_update_mac(mvm);
2543 mvmvif->ap_ibss_active = false;
2544 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2545 iwl_mvm_rm_mcast_sta(mvm, vif);
2546out_unbind:
2547 iwl_mvm_binding_remove_vif(mvm, vif);
2548out_remove:
2549 iwl_mvm_mac_ctxt_remove(mvm, vif);
2550out_unlock:
2551 mutex_unlock(&mvm->mutex);
2552 return ret;
2553}
2554
2555static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2556 struct ieee80211_vif *vif)
2557{
2558 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2559 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2560
2561 iwl_mvm_prepare_mac_removal(mvm, vif);
2562
2563 mutex_lock(&mvm->mutex);
2564
2565 /* Handle AP stop while in CSA */
2566 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2567 iwl_mvm_remove_time_event(mvm, mvmvif,
2568 &mvmvif->time_event_data);
2569 RCU_INIT_POINTER(mvm->csa_vif, NULL);
2570 mvmvif->csa_countdown = false;
2571 }
2572
2573 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2574 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2575 mvm->csa_tx_block_bcn_timeout = 0;
2576 }
2577
2578 mvmvif->ap_ibss_active = false;
2579 mvm->ap_last_beacon_gp2 = 0;
2580
2581 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2582 iwl_mvm_vif_set_low_latency(mvmvif, false,
2583 LOW_LATENCY_VIF_TYPE);
2584 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id);
2585 }
2586
2587 iwl_mvm_bt_coex_vif_change(mvm);
2588
2589 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2590 if (vif->p2p && mvm->p2p_device_vif)
2591 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2592
2593 iwl_mvm_update_quotas(mvm, false, NULL);
2594
2595 /*
2596 * This is not very nice, but the simplest:
2597 * For older FWs removing the mcast sta before the bcast station may
2598 * cause assert 0x2b00.
2599 * This is fixed in later FW (which will stop beaconing when removing
2600 * bcast station).
2601 * So make the order of removal depend on the TLV
2602 */
2603 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2604 iwl_mvm_rm_mcast_sta(mvm, vif);
2605 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2606 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2607 iwl_mvm_rm_mcast_sta(mvm, vif);
2608 iwl_mvm_binding_remove_vif(mvm, vif);
2609
2610 iwl_mvm_power_update_mac(mvm);
2611
2612 iwl_mvm_mac_ctxt_remove(mvm, vif);
2613
2614 mutex_unlock(&mvm->mutex);
2615}
2616
2617static void
2618iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2619 struct ieee80211_vif *vif,
2620 struct ieee80211_bss_conf *bss_conf,
2621 u32 changes)
2622{
2623 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2624
2625 /* Changes will be applied when the AP/IBSS is started */
2626 if (!mvmvif->ap_ibss_active)
2627 return;
2628
2629 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
2630 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
2631 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
2632 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2633
2634 /* Need to send a new beacon template to the FW */
2635 if (changes & BSS_CHANGED_BEACON &&
2636 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2637 IWL_WARN(mvm, "Failed updating beacon data\n");
2638
2639 if (changes & BSS_CHANGED_TXPOWER) {
2640 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2641 bss_conf->txpower);
2642 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2643 }
2644
2645 if (changes & BSS_CHANGED_FTM_RESPONDER) {
2646 int ret = iwl_mvm_ftm_start_responder(mvm, vif);
2647
2648 if (ret)
2649 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n",
2650 ret);
2651 }
2652
2653}
2654
2655static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2656 struct ieee80211_vif *vif,
2657 struct ieee80211_bss_conf *bss_conf,
2658 u32 changes)
2659{
2660 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2661
2662 mutex_lock(&mvm->mutex);
2663
2664 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
2665 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
2666
2667 switch (vif->type) {
2668 case NL80211_IFTYPE_STATION:
2669 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2670 break;
2671 case NL80211_IFTYPE_AP:
2672 case NL80211_IFTYPE_ADHOC:
2673 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
2674 break;
2675 case NL80211_IFTYPE_MONITOR:
2676 if (changes & BSS_CHANGED_MU_GROUPS)
2677 iwl_mvm_update_mu_groups(mvm, vif);
2678 break;
2679 default:
2680 /* shouldn't happen */
2681 WARN_ON_ONCE(1);
2682 }
2683
2684 mutex_unlock(&mvm->mutex);
2685}
2686
2687static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2688 struct ieee80211_vif *vif,
2689 struct ieee80211_scan_request *hw_req)
2690{
2691 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2692 int ret;
2693
2694 if (hw_req->req.n_channels == 0 ||
2695 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
2696 return -EINVAL;
2697
2698 mutex_lock(&mvm->mutex);
2699 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
2700 mutex_unlock(&mvm->mutex);
2701
2702 return ret;
2703}
2704
2705static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2706 struct ieee80211_vif *vif)
2707{
2708 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2709
2710 mutex_lock(&mvm->mutex);
2711
2712 /* Due to a race condition, it's possible that mac80211 asks
2713 * us to stop a hw_scan when it's already stopped. This can
2714 * happen, for instance, if we stopped the scan ourselves,
2715 * called ieee80211_scan_completed() and the userspace called
2716 * cancel scan scan before ieee80211_scan_work() could run.
2717 * To handle that, simply return if the scan is not running.
2718 */
2719 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
2720 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
2721
2722 mutex_unlock(&mvm->mutex);
2723}
2724
2725static void
2726iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
2727 struct ieee80211_sta *sta, u16 tids,
2728 int num_frames,
2729 enum ieee80211_frame_release_type reason,
2730 bool more_data)
2731{
2732 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2733
2734 /* Called when we need to transmit (a) frame(s) from mac80211 */
2735
2736 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2737 tids, more_data, false);
2738}
2739
2740static void
2741iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2742 struct ieee80211_sta *sta, u16 tids,
2743 int num_frames,
2744 enum ieee80211_frame_release_type reason,
2745 bool more_data)
2746{
2747 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2748
2749 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
2750
2751 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2752 tids, more_data, true);
2753}
2754
2755static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2756 enum sta_notify_cmd cmd,
2757 struct ieee80211_sta *sta)
2758{
2759 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2760 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2761 unsigned long txqs = 0, tids = 0;
2762 int tid;
2763
2764 /*
2765 * If we have TVQM then we get too high queue numbers - luckily
2766 * we really shouldn't get here with that because such hardware
2767 * should have firmware supporting buffer station offload.
2768 */
2769 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
2770 return;
2771
2772 spin_lock_bh(&mvmsta->lock);
2773 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) {
2774 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2775
2776 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
2777 continue;
2778
2779 __set_bit(tid_data->txq_id, &txqs);
2780
2781 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
2782 continue;
2783
2784 __set_bit(tid, &tids);
2785 }
2786
2787 switch (cmd) {
2788 case STA_NOTIFY_SLEEP:
2789 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
2790 ieee80211_sta_set_buffered(sta, tid, true);
2791
2792 if (txqs)
2793 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
2794 /*
2795 * The fw updates the STA to be asleep. Tx packets on the Tx
2796 * queues to this station will not be transmitted. The fw will
2797 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2798 */
2799 break;
2800 case STA_NOTIFY_AWAKE:
2801 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA))
2802 break;
2803
2804 if (txqs)
2805 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
2806 iwl_mvm_sta_modify_ps_wake(mvm, sta);
2807 break;
2808 default:
2809 break;
2810 }
2811 spin_unlock_bh(&mvmsta->lock);
2812}
2813
2814static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2815 struct ieee80211_vif *vif,
2816 enum sta_notify_cmd cmd,
2817 struct ieee80211_sta *sta)
2818{
2819 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
2820}
2821
2822void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
2823{
2824 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2825 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
2826 struct ieee80211_sta *sta;
2827 struct iwl_mvm_sta *mvmsta;
2828 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
2829
2830 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)))
2831 return;
2832
2833 rcu_read_lock();
2834 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
2835 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
2836 rcu_read_unlock();
2837 return;
2838 }
2839
2840 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2841
2842 if (!mvmsta->vif ||
2843 mvmsta->vif->type != NL80211_IFTYPE_AP) {
2844 rcu_read_unlock();
2845 return;
2846 }
2847
2848 if (mvmsta->sleeping != sleeping) {
2849 mvmsta->sleeping = sleeping;
2850 __iwl_mvm_mac_sta_notify(mvm->hw,
2851 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
2852 sta);
2853 ieee80211_sta_ps_transition(sta, sleeping);
2854 }
2855
2856 if (sleeping) {
2857 switch (notif->type) {
2858 case IWL_MVM_PM_EVENT_AWAKE:
2859 case IWL_MVM_PM_EVENT_ASLEEP:
2860 break;
2861 case IWL_MVM_PM_EVENT_UAPSD:
2862 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
2863 break;
2864 case IWL_MVM_PM_EVENT_PS_POLL:
2865 ieee80211_sta_pspoll(sta);
2866 break;
2867 default:
2868 break;
2869 }
2870 }
2871
2872 rcu_read_unlock();
2873}
2874
2875static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2876 struct ieee80211_vif *vif,
2877 struct ieee80211_sta *sta)
2878{
2879 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2880 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2881
2882 /*
2883 * This is called before mac80211 does RCU synchronisation,
2884 * so here we already invalidate our internal RCU-protected
2885 * station pointer. The rest of the code will thus no longer
2886 * be able to find the station this way, and we don't rely
2887 * on further RCU synchronisation after the sta_state()
2888 * callback deleted the station.
2889 */
2890 mutex_lock(&mvm->mutex);
2891 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2892 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2893 ERR_PTR(-ENOENT));
2894
2895 mutex_unlock(&mvm->mutex);
2896}
2897
2898static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2899 const u8 *bssid)
2900{
2901 int i;
2902
2903 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
2904 struct iwl_mvm_tcm_mac *mdata;
2905
2906 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id];
2907 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate);
2908 mdata->opened_rx_ba_sessions = false;
2909 }
2910
2911 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2912 return;
2913
2914 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
2915 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2916 return;
2917 }
2918
2919 if (!vif->p2p &&
2920 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
2921 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2922 return;
2923 }
2924
2925 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) {
2926 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) {
2927 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2928 return;
2929 }
2930 }
2931
2932 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2933}
2934
2935static void
2936iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2937 struct ieee80211_vif *vif, u8 *peer_addr,
2938 enum nl80211_tdls_operation action)
2939{
2940 struct iwl_fw_dbg_trigger_tlv *trig;
2941 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2942
2943 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
2944 FW_DBG_TRIGGER_TDLS);
2945 if (!trig)
2946 return;
2947
2948 tdls_trig = (void *)trig->data;
2949
2950 if (!(tdls_trig->action_bitmap & BIT(action)))
2951 return;
2952
2953 if (tdls_trig->peer_mode &&
2954 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2955 return;
2956
2957 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2958 "TDLS event occurred, peer %pM, action %d",
2959 peer_addr, action);
2960}
2961
2962struct iwl_mvm_he_obss_narrow_bw_ru_data {
2963 bool tolerated;
2964};
2965
2966static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy,
2967 struct cfg80211_bss *bss,
2968 void *_data)
2969{
2970 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data;
2971 const struct element *elem;
2972
2973 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, bss->ies->data,
2974 bss->ies->len);
2975
2976 if (!elem || elem->datalen < 10 ||
2977 !(elem->data[10] &
2978 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) {
2979 data->tolerated = false;
2980 }
2981}
2982
2983static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,
2984 struct ieee80211_vif *vif)
2985{
2986 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2987 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = {
2988 .tolerated = true,
2989 };
2990
2991 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) {
2992 mvmvif->he_ru_2mhz_block = false;
2993 return;
2994 }
2995
2996 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef,
2997 iwl_mvm_check_he_obss_narrow_bw_ru_iter,
2998 &iter_data);
2999
3000 /*
3001 * If there is at least one AP on radar channel that cannot
3002 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU.
3003 */
3004 mvmvif->he_ru_2mhz_block = !iter_data.tolerated;
3005}
3006
3007static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
3008 struct ieee80211_vif *vif,
3009 struct ieee80211_sta *sta,
3010 enum ieee80211_sta_state old_state,
3011 enum ieee80211_sta_state new_state)
3012{
3013 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3014 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3015 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3016 int ret;
3017
3018 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
3019 sta->addr, old_state, new_state);
3020
3021 /* this would be a mac80211 bug ... but don't crash */
3022 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
3023 return -EINVAL;
3024
3025 /*
3026 * If we are in a STA removal flow and in DQA mode:
3027 *
3028 * This is after the sync_rcu part, so the queues have already been
3029 * flushed. No more TXs on their way in mac80211's path, and no more in
3030 * the queues.
3031 * Also, we won't be getting any new TX frames for this station.
3032 * What we might have are deferred TX frames that need to be taken care
3033 * of.
3034 *
3035 * Drop any still-queued deferred-frame before removing the STA, and
3036 * make sure the worker is no longer handling frames for this STA.
3037 */
3038 if (old_state == IEEE80211_STA_NONE &&
3039 new_state == IEEE80211_STA_NOTEXIST) {
3040 flush_work(&mvm->add_stream_wk);
3041
3042 /*
3043 * No need to make sure deferred TX indication is off since the
3044 * worker will already remove it if it was on
3045 */
3046 }
3047
3048 mutex_lock(&mvm->mutex);
3049 /* track whether or not the station is associated */
3050 mvm_sta->sta_state = new_state;
3051
3052 if (old_state == IEEE80211_STA_NOTEXIST &&
3053 new_state == IEEE80211_STA_NONE) {
3054 /*
3055 * Firmware bug - it'll crash if the beacon interval is less
3056 * than 16. We can't avoid connecting at all, so refuse the
3057 * station state change, this will cause mac80211 to abandon
3058 * attempts to connect to this AP, and eventually wpa_s will
3059 * blacklist the AP...
3060 */
3061 if (vif->type == NL80211_IFTYPE_STATION &&
3062 vif->bss_conf.beacon_int < 16) {
3063 IWL_ERR(mvm,
3064 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
3065 sta->addr, vif->bss_conf.beacon_int);
3066 ret = -EINVAL;
3067 goto out_unlock;
3068 }
3069
3070 if (sta->tdls &&
3071 (vif->p2p ||
3072 iwl_mvm_tdls_sta_count(mvm, NULL) ==
3073 IWL_MVM_TDLS_STA_COUNT ||
3074 iwl_mvm_phy_ctx_count(mvm) > 1)) {
3075 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
3076 ret = -EBUSY;
3077 goto out_unlock;
3078 }
3079
3080 ret = iwl_mvm_add_sta(mvm, vif, sta);
3081 if (sta->tdls && ret == 0) {
3082 iwl_mvm_recalc_tdls_state(mvm, vif, true);
3083 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3084 NL80211_TDLS_SETUP);
3085 }
3086
3087 sta->max_rc_amsdu_len = 1;
3088 } else if (old_state == IEEE80211_STA_NONE &&
3089 new_state == IEEE80211_STA_AUTH) {
3090 /*
3091 * EBS may be disabled due to previous failures reported by FW.
3092 * Reset EBS status here assuming environment has been changed.
3093 */
3094 mvm->last_ebs_successful = true;
3095 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
3096 ret = 0;
3097 } else if (old_state == IEEE80211_STA_AUTH &&
3098 new_state == IEEE80211_STA_ASSOC) {
3099 if (vif->type == NL80211_IFTYPE_AP) {
3100 vif->bss_conf.he_support = sta->he_cap.has_he;
3101 mvmvif->ap_assoc_sta_count++;
3102 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3103 if (vif->bss_conf.he_support &&
3104 !iwlwifi_mod_params.disable_11ax)
3105 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id);
3106 } else if (vif->type == NL80211_IFTYPE_STATION) {
3107 vif->bss_conf.he_support = sta->he_cap.has_he;
3108
3109 mvmvif->he_ru_2mhz_block = false;
3110 if (sta->he_cap.has_he)
3111 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif);
3112
3113 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3114 }
3115
3116 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
3117 false);
3118 ret = iwl_mvm_update_sta(mvm, vif, sta);
3119 } else if (old_state == IEEE80211_STA_ASSOC &&
3120 new_state == IEEE80211_STA_AUTHORIZED) {
3121 ret = 0;
3122
3123 /* we don't support TDLS during DCM */
3124 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3125 iwl_mvm_teardown_tdls_peers(mvm);
3126
3127 if (sta->tdls)
3128 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3129 NL80211_TDLS_ENABLE_LINK);
3130
3131 /* enable beacon filtering */
3132 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
3133
3134 /*
3135 * Now that the station is authorized, i.e., keys were already
3136 * installed, need to indicate to the FW that
3137 * multicast data frames can be forwarded to the driver
3138 */
3139 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3140
3141 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
3142 true);
3143 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
3144 new_state == IEEE80211_STA_ASSOC) {
3145 /* Multicast data frames are no longer allowed */
3146 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3147
3148 /* disable beacon filtering */
3149 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3150 WARN_ON(ret &&
3151 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
3152 &mvm->status));
3153 ret = 0;
3154 } else if (old_state == IEEE80211_STA_ASSOC &&
3155 new_state == IEEE80211_STA_AUTH) {
3156 if (vif->type == NL80211_IFTYPE_AP) {
3157 mvmvif->ap_assoc_sta_count--;
3158 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3159 }
3160 ret = 0;
3161 } else if (old_state == IEEE80211_STA_AUTH &&
3162 new_state == IEEE80211_STA_NONE) {
3163 ret = 0;
3164 } else if (old_state == IEEE80211_STA_NONE &&
3165 new_state == IEEE80211_STA_NOTEXIST) {
3166 ret = iwl_mvm_rm_sta(mvm, vif, sta);
3167 if (sta->tdls) {
3168 iwl_mvm_recalc_tdls_state(mvm, vif, false);
3169 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3170 NL80211_TDLS_DISABLE_LINK);
3171 }
3172
3173 if (unlikely(ret &&
3174 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
3175 &mvm->status)))
3176 ret = 0;
3177 } else {
3178 ret = -EIO;
3179 }
3180 out_unlock:
3181 mutex_unlock(&mvm->mutex);
3182
3183 if (sta->tdls && ret == 0) {
3184 if (old_state == IEEE80211_STA_NOTEXIST &&
3185 new_state == IEEE80211_STA_NONE)
3186 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3187 else if (old_state == IEEE80211_STA_NONE &&
3188 new_state == IEEE80211_STA_NOTEXIST)
3189 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3190 }
3191
3192 return ret;
3193}
3194
3195static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3196{
3197 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3198
3199 mvm->rts_threshold = value;
3200
3201 return 0;
3202}
3203
3204static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
3205 struct ieee80211_vif *vif,
3206 struct ieee80211_sta *sta, u32 changed)
3207{
3208 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3209 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3210
3211 if (changed & (IEEE80211_RC_BW_CHANGED |
3212 IEEE80211_RC_SUPP_RATES_CHANGED |
3213 IEEE80211_RC_NSS_CHANGED))
3214 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
3215 true);
3216
3217 if (vif->type == NL80211_IFTYPE_STATION &&
3218 changed & IEEE80211_RC_NSS_CHANGED)
3219 iwl_mvm_sf_update(mvm, vif, false);
3220}
3221
3222static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
3223 struct ieee80211_vif *vif, u16 ac,
3224 const struct ieee80211_tx_queue_params *params)
3225{
3226 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3227 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3228
3229 mvmvif->queue_params[ac] = *params;
3230
3231 /*
3232 * No need to update right away, we'll get BSS_CHANGED_QOS
3233 * The exception is P2P_DEVICE interface which needs immediate update.
3234 */
3235 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
3236 int ret;
3237
3238 mutex_lock(&mvm->mutex);
3239 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3240 mutex_unlock(&mvm->mutex);
3241 return ret;
3242 }
3243 return 0;
3244}
3245
3246static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
3247 struct ieee80211_vif *vif,
3248 u16 req_duration)
3249{
3250 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3251 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
3252 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
3253
3254 if (req_duration > duration)
3255 duration = req_duration;
3256
3257 mutex_lock(&mvm->mutex);
3258 /* Try really hard to protect the session and hear a beacon */
3259 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
3260 mutex_unlock(&mvm->mutex);
3261}
3262
3263static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
3264 struct ieee80211_vif *vif,
3265 struct cfg80211_sched_scan_request *req,
3266 struct ieee80211_scan_ies *ies)
3267{
3268 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3269
3270 int ret;
3271
3272 mutex_lock(&mvm->mutex);
3273
3274 if (!vif->bss_conf.idle) {
3275 ret = -EBUSY;
3276 goto out;
3277 }
3278
3279 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
3280
3281out:
3282 mutex_unlock(&mvm->mutex);
3283 return ret;
3284}
3285
3286static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
3287 struct ieee80211_vif *vif)
3288{
3289 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3290 int ret;
3291
3292 mutex_lock(&mvm->mutex);
3293
3294 /* Due to a race condition, it's possible that mac80211 asks
3295 * us to stop a sched_scan when it's already stopped. This
3296 * can happen, for instance, if we stopped the scan ourselves,
3297 * called ieee80211_sched_scan_stopped() and the userspace called
3298 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
3299 * could run. To handle this, simply return if the scan is
3300 * not running.
3301 */
3302 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
3303 mutex_unlock(&mvm->mutex);
3304 return 0;
3305 }
3306
3307 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
3308 mutex_unlock(&mvm->mutex);
3309 iwl_mvm_wait_for_async_handlers(mvm);
3310
3311 return ret;
3312}
3313
3314static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
3315 enum set_key_cmd cmd,
3316 struct ieee80211_vif *vif,
3317 struct ieee80211_sta *sta,
3318 struct ieee80211_key_conf *key)
3319{
3320 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3321 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3322 struct iwl_mvm_sta *mvmsta;
3323 struct iwl_mvm_key_pn *ptk_pn;
3324 int keyidx = key->keyidx;
3325 int ret, i;
3326 u8 key_offset;
3327
3328 if (iwlwifi_mod_params.swcrypto) {
3329 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
3330 return -EOPNOTSUPP;
3331 }
3332
3333 switch (key->cipher) {
3334 case WLAN_CIPHER_SUITE_TKIP:
3335 if (!mvm->trans->trans_cfg->gen2) {
3336 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
3337 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
3338 } else if (vif->type == NL80211_IFTYPE_STATION) {
3339 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE;
3340 } else {
3341 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n");
3342 return -EOPNOTSUPP;
3343 }
3344 break;
3345 case WLAN_CIPHER_SUITE_CCMP:
3346 case WLAN_CIPHER_SUITE_GCMP:
3347 case WLAN_CIPHER_SUITE_GCMP_256:
3348 if (!iwl_mvm_has_new_tx_api(mvm))
3349 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
3350 break;
3351 case WLAN_CIPHER_SUITE_AES_CMAC:
3352 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
3353 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
3354 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
3355 break;
3356 case WLAN_CIPHER_SUITE_WEP40:
3357 case WLAN_CIPHER_SUITE_WEP104:
3358 if (vif->type == NL80211_IFTYPE_STATION)
3359 break;
3360 if (iwl_mvm_has_new_tx_api(mvm))
3361 return -EOPNOTSUPP;
3362 /* support HW crypto on TX */
3363 return 0;
3364 default:
3365 /* currently FW supports only one optional cipher scheme */
3366 if (hw->n_cipher_schemes &&
3367 hw->cipher_schemes->cipher == key->cipher)
3368 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
3369 else
3370 return -EOPNOTSUPP;
3371 }
3372
3373 switch (cmd) {
3374 case SET_KEY:
3375 if ((vif->type == NL80211_IFTYPE_ADHOC ||
3376 vif->type == NL80211_IFTYPE_AP) && !sta) {
3377 /*
3378 * GTK on AP interface is a TX-only key, return 0;
3379 * on IBSS they're per-station and because we're lazy
3380 * we don't support them for RX, so do the same.
3381 * CMAC/GMAC in AP/IBSS modes must be done in software.
3382 */
3383 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
3384 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
3385 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
3386 ret = -EOPNOTSUPP;
3387 else
3388 ret = 0;
3389
3390 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
3391 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
3392 !iwl_mvm_has_new_tx_api(mvm)) {
3393 key->hw_key_idx = STA_KEY_IDX_INVALID;
3394 break;
3395 }
3396
3397 if (!mvmvif->ap_ibss_active) {
3398 for (i = 0;
3399 i < ARRAY_SIZE(mvmvif->ap_early_keys);
3400 i++) {
3401 if (!mvmvif->ap_early_keys[i]) {
3402 mvmvif->ap_early_keys[i] = key;
3403 break;
3404 }
3405 }
3406
3407 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys))
3408 ret = -ENOSPC;
3409
3410 break;
3411 }
3412 }
3413
3414 /* During FW restart, in order to restore the state as it was,
3415 * don't try to reprogram keys we previously failed for.
3416 */
3417 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3418 key->hw_key_idx == STA_KEY_IDX_INVALID) {
3419 IWL_DEBUG_MAC80211(mvm,
3420 "skip invalid idx key programming during restart\n");
3421 ret = 0;
3422 break;
3423 }
3424
3425 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3426 sta && iwl_mvm_has_new_rx_api(mvm) &&
3427 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
3428 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
3429 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3430 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
3431 struct ieee80211_key_seq seq;
3432 int tid, q;
3433
3434 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3435 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
3436 ptk_pn = kzalloc(struct_size(ptk_pn, q,
3437 mvm->trans->num_rx_queues),
3438 GFP_KERNEL);
3439 if (!ptk_pn) {
3440 ret = -ENOMEM;
3441 break;
3442 }
3443
3444 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
3445 ieee80211_get_key_rx_seq(key, tid, &seq);
3446 for (q = 0; q < mvm->trans->num_rx_queues; q++)
3447 memcpy(ptk_pn->q[q].pn[tid],
3448 seq.ccmp.pn,
3449 IEEE80211_CCMP_PN_LEN);
3450 }
3451
3452 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
3453 }
3454
3455 /* in HW restart reuse the index, otherwise request a new one */
3456 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3457 key_offset = key->hw_key_idx;
3458 else
3459 key_offset = STA_KEY_IDX_INVALID;
3460
3461 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
3462 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
3463 if (ret) {
3464 IWL_WARN(mvm, "set key failed\n");
3465 key->hw_key_idx = STA_KEY_IDX_INVALID;
3466 /*
3467 * can't add key for RX, but we don't need it
3468 * in the device for TX so still return 0,
3469 * unless we have new TX API where we cannot
3470 * put key material into the TX_CMD
3471 */
3472 if (iwl_mvm_has_new_tx_api(mvm))
3473 ret = -EOPNOTSUPP;
3474 else
3475 ret = 0;
3476 }
3477
3478 break;
3479 case DISABLE_KEY:
3480 ret = -ENOENT;
3481 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
3482 if (mvmvif->ap_early_keys[i] == key) {
3483 mvmvif->ap_early_keys[i] = NULL;
3484 ret = 0;
3485 }
3486 }
3487
3488 /* found in pending list - don't do anything else */
3489 if (ret == 0)
3490 break;
3491
3492 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
3493 ret = 0;
3494 break;
3495 }
3496
3497 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
3498 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
3499 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
3500 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3501 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
3502 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3503 ptk_pn = rcu_dereference_protected(
3504 mvmsta->ptk_pn[keyidx],
3505 lockdep_is_held(&mvm->mutex));
3506 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
3507 if (ptk_pn)
3508 kfree_rcu(ptk_pn, rcu_head);
3509 }
3510
3511 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
3512 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
3513 break;
3514 default:
3515 ret = -EINVAL;
3516 }
3517
3518 return ret;
3519}
3520
3521static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
3522 enum set_key_cmd cmd,
3523 struct ieee80211_vif *vif,
3524 struct ieee80211_sta *sta,
3525 struct ieee80211_key_conf *key)
3526{
3527 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3528 int ret;
3529
3530 mutex_lock(&mvm->mutex);
3531 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key);
3532 mutex_unlock(&mvm->mutex);
3533
3534 return ret;
3535}
3536
3537static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
3538 struct ieee80211_vif *vif,
3539 struct ieee80211_key_conf *keyconf,
3540 struct ieee80211_sta *sta,
3541 u32 iv32, u16 *phase1key)
3542{
3543 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3544
3545 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
3546 return;
3547
3548 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
3549}
3550
3551
3552static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
3553 struct iwl_rx_packet *pkt, void *data)
3554{
3555 struct iwl_mvm *mvm =
3556 container_of(notif_wait, struct iwl_mvm, notif_wait);
3557 struct iwl_hs20_roc_res *resp;
3558 int resp_len = iwl_rx_packet_payload_len(pkt);
3559 struct iwl_mvm_time_event_data *te_data = data;
3560
3561 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3562 return true;
3563
3564 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3565 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3566 return true;
3567 }
3568
3569 resp = (void *)pkt->data;
3570
3571 IWL_DEBUG_TE(mvm,
3572 "Aux ROC: Received response from ucode: status=%d uid=%d\n",
3573 resp->status, resp->event_unique_id);
3574
3575 te_data->uid = le32_to_cpu(resp->event_unique_id);
3576 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3577 te_data->uid);
3578
3579 spin_lock_bh(&mvm->time_event_lock);
3580 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3581 spin_unlock_bh(&mvm->time_event_lock);
3582
3583 return true;
3584}
3585
3586#define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
3587#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
3588#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
3589#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
3590#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
3591static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3592 struct ieee80211_channel *channel,
3593 struct ieee80211_vif *vif,
3594 int duration)
3595{
3596 int res;
3597 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3598 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
3599 static const u16 time_event_response[] = { HOT_SPOT_CMD };
3600 struct iwl_notification_wait wait_time_event;
3601 u32 dtim_interval = vif->bss_conf.dtim_period *
3602 vif->bss_conf.beacon_int;
3603 u32 req_dur, delay;
3604 struct iwl_hs20_roc_req aux_roc_req = {
3605 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3606 .id_and_color =
3607 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3608 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3609 };
3610 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm,
3611 &aux_roc_req.channel_info);
3612 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm);
3613
3614 /* Set the channel info data */
3615 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value,
3616 (channel->band == NL80211_BAND_2GHZ) ?
3617 PHY_BAND_24 : PHY_BAND_5,
3618 PHY_VHT_CHANNEL_MODE20,
3619 0);
3620
3621 /* Set the time and duration */
3622 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm));
3623
3624 delay = AUX_ROC_MIN_DELAY;
3625 req_dur = MSEC_TO_TU(duration);
3626
3627 /*
3628 * If we are associated we want the delay time to be at least one
3629 * dtim interval so that the FW can wait until after the DTIM and
3630 * then start the time event, this will potentially allow us to
3631 * remain off-channel for the max duration.
3632 * Since we want to use almost a whole dtim interval we would also
3633 * like the delay to be for 2-3 dtim intervals, in case there are
3634 * other time events with higher priority.
3635 */
3636 if (vif->bss_conf.assoc) {
3637 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
3638 /* We cannot remain off-channel longer than the DTIM interval */
3639 if (dtim_interval <= req_dur) {
3640 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
3641 if (req_dur <= AUX_ROC_MIN_DURATION)
3642 req_dur = dtim_interval -
3643 AUX_ROC_MIN_SAFETY_BUFFER;
3644 }
3645 }
3646
3647 tail->duration = cpu_to_le32(req_dur);
3648 tail->apply_time_max_delay = cpu_to_le32(delay);
3649
3650 IWL_DEBUG_TE(mvm,
3651 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3652 channel->hw_value, req_dur, duration, delay,
3653 dtim_interval);
3654 /* Set the node address */
3655 memcpy(tail->node_addr, vif->addr, ETH_ALEN);
3656
3657 lockdep_assert_held(&mvm->mutex);
3658
3659 spin_lock_bh(&mvm->time_event_lock);
3660
3661 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3662 spin_unlock_bh(&mvm->time_event_lock);
3663 return -EIO;
3664 }
3665
3666 te_data->vif = vif;
3667 te_data->duration = duration;
3668 te_data->id = HOT_SPOT_CMD;
3669
3670 spin_unlock_bh(&mvm->time_event_lock);
3671
3672 /*
3673 * Use a notification wait, which really just processes the
3674 * command response and doesn't wait for anything, in order
3675 * to be able to process the response and get the UID inside
3676 * the RX path. Using CMD_WANT_SKB doesn't work because it
3677 * stores the buffer and then wakes up this thread, by which
3678 * time another notification (that the time event started)
3679 * might already be processed unsuccessfully.
3680 */
3681 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3682 time_event_response,
3683 ARRAY_SIZE(time_event_response),
3684 iwl_mvm_rx_aux_roc, te_data);
3685
3686 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len,
3687 &aux_roc_req);
3688
3689 if (res) {
3690 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3691 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3692 goto out_clear_te;
3693 }
3694
3695 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3696 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3697 /* should never fail */
3698 WARN_ON_ONCE(res);
3699
3700 if (res) {
3701 out_clear_te:
3702 spin_lock_bh(&mvm->time_event_lock);
3703 iwl_mvm_te_clear_data(mvm, te_data);
3704 spin_unlock_bh(&mvm->time_event_lock);
3705 }
3706
3707 return res;
3708}
3709
3710static int iwl_mvm_roc(struct ieee80211_hw *hw,
3711 struct ieee80211_vif *vif,
3712 struct ieee80211_channel *channel,
3713 int duration,
3714 enum ieee80211_roc_type type)
3715{
3716 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3717 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3718 struct cfg80211_chan_def chandef;
3719 struct iwl_mvm_phy_ctxt *phy_ctxt;
3720 int ret, i;
3721
3722 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3723 duration, type);
3724
3725 /*
3726 * Flush the done work, just in case it's still pending, so that
3727 * the work it does can complete and we can accept new frames.
3728 */
3729 flush_work(&mvm->roc_done_wk);
3730
3731 mutex_lock(&mvm->mutex);
3732
3733 switch (vif->type) {
3734 case NL80211_IFTYPE_STATION:
3735 if (fw_has_capa(&mvm->fw->ucode_capa,
3736 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
3737 /* Use aux roc framework (HS20) */
3738 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3739 vif, duration);
3740 goto out_unlock;
3741 }
3742 IWL_ERR(mvm, "hotspot not supported\n");
3743 ret = -EINVAL;
3744 goto out_unlock;
3745 case NL80211_IFTYPE_P2P_DEVICE:
3746 /* handle below */
3747 break;
3748 default:
3749 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
3750 ret = -EINVAL;
3751 goto out_unlock;
3752 }
3753
3754 for (i = 0; i < NUM_PHY_CTX; i++) {
3755 phy_ctxt = &mvm->phy_ctxts[i];
3756 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3757 continue;
3758
3759 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3760 /*
3761 * Unbind the P2P_DEVICE from the current PHY context,
3762 * and if the PHY context is not used remove it.
3763 */
3764 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3765 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3766 goto out_unlock;
3767
3768 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3769
3770 /* Bind the P2P_DEVICE to the current PHY Context */
3771 mvmvif->phy_ctxt = phy_ctxt;
3772
3773 ret = iwl_mvm_binding_add_vif(mvm, vif);
3774 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3775 goto out_unlock;
3776
3777 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3778 goto schedule_time_event;
3779 }
3780 }
3781
3782 /* Need to update the PHY context only if the ROC channel changed */
3783 if (channel == mvmvif->phy_ctxt->channel)
3784 goto schedule_time_event;
3785
3786 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
3787
3788 /*
3789 * Change the PHY context configuration as it is currently referenced
3790 * only by the P2P Device MAC
3791 */
3792 if (mvmvif->phy_ctxt->ref == 1) {
3793 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3794 &chandef, 1, 1);
3795 if (ret)
3796 goto out_unlock;
3797 } else {
3798 /*
3799 * The PHY context is shared with other MACs. Need to remove the
3800 * P2P Device from the binding, allocate an new PHY context and
3801 * create a new binding
3802 */
3803 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3804 if (!phy_ctxt) {
3805 ret = -ENOSPC;
3806 goto out_unlock;
3807 }
3808
3809 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3810 1, 1);
3811 if (ret) {
3812 IWL_ERR(mvm, "Failed to change PHY context\n");
3813 goto out_unlock;
3814 }
3815
3816 /* Unbind the P2P_DEVICE from the current PHY context */
3817 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3818 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3819 goto out_unlock;
3820
3821 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3822
3823 /* Bind the P2P_DEVICE to the new allocated PHY context */
3824 mvmvif->phy_ctxt = phy_ctxt;
3825
3826 ret = iwl_mvm_binding_add_vif(mvm, vif);
3827 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3828 goto out_unlock;
3829
3830 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3831 }
3832
3833schedule_time_event:
3834 /* Schedule the time events */
3835 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
3836
3837out_unlock:
3838 mutex_unlock(&mvm->mutex);
3839 IWL_DEBUG_MAC80211(mvm, "leave\n");
3840 return ret;
3841}
3842
3843static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw,
3844 struct ieee80211_vif *vif)
3845{
3846 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3847
3848 IWL_DEBUG_MAC80211(mvm, "enter\n");
3849
3850 mutex_lock(&mvm->mutex);
3851 iwl_mvm_stop_roc(mvm);
3852 mutex_unlock(&mvm->mutex);
3853
3854 IWL_DEBUG_MAC80211(mvm, "leave\n");
3855 return 0;
3856}
3857
3858struct iwl_mvm_ftm_responder_iter_data {
3859 bool responder;
3860 struct ieee80211_chanctx_conf *ctx;
3861};
3862
3863static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac,
3864 struct ieee80211_vif *vif)
3865{
3866 struct iwl_mvm_ftm_responder_iter_data *data = _data;
3867
3868 if (rcu_access_pointer(vif->chanctx_conf) == data->ctx &&
3869 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params)
3870 data->responder = true;
3871}
3872
3873static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm,
3874 struct ieee80211_chanctx_conf *ctx)
3875{
3876 struct iwl_mvm_ftm_responder_iter_data data = {
3877 .responder = false,
3878 .ctx = ctx,
3879 };
3880
3881 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
3882 IEEE80211_IFACE_ITER_NORMAL,
3883 iwl_mvm_ftm_responder_chanctx_iter,
3884 &data);
3885 return data.responder;
3886}
3887
3888static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3889 struct ieee80211_chanctx_conf *ctx)
3890{
3891 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3892 struct iwl_mvm_phy_ctxt *phy_ctxt;
3893 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx);
3894 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def;
3895 int ret;
3896
3897 lockdep_assert_held(&mvm->mutex);
3898
3899 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
3900
3901 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3902 if (!phy_ctxt) {
3903 ret = -ENOSPC;
3904 goto out;
3905 }
3906
3907 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def,
3908 ctx->rx_chains_static,
3909 ctx->rx_chains_dynamic);
3910 if (ret) {
3911 IWL_ERR(mvm, "Failed to add PHY context\n");
3912 goto out;
3913 }
3914
3915 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
3916 *phy_ctxt_id = phy_ctxt->id;
3917out:
3918 return ret;
3919}
3920
3921static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3922 struct ieee80211_chanctx_conf *ctx)
3923{
3924 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3925 int ret;
3926
3927 mutex_lock(&mvm->mutex);
3928 ret = __iwl_mvm_add_chanctx(mvm, ctx);
3929 mutex_unlock(&mvm->mutex);
3930
3931 return ret;
3932}
3933
3934static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3935 struct ieee80211_chanctx_conf *ctx)
3936{
3937 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3938 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3939
3940 lockdep_assert_held(&mvm->mutex);
3941
3942 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3943}
3944
3945static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3946 struct ieee80211_chanctx_conf *ctx)
3947{
3948 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3949
3950 mutex_lock(&mvm->mutex);
3951 __iwl_mvm_remove_chanctx(mvm, ctx);
3952 mutex_unlock(&mvm->mutex);
3953}
3954
3955static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3956 struct ieee80211_chanctx_conf *ctx,
3957 u32 changed)
3958{
3959 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3960 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3961 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3962 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx);
3963 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def;
3964
3965 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3966 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3967 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
3968 IEEE80211_CHANCTX_CHANGE_RADAR |
3969 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
3970 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3971 phy_ctxt->ref, changed))
3972 return;
3973
3974 mutex_lock(&mvm->mutex);
3975
3976 /* we are only changing the min_width, may be a noop */
3977 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) {
3978 if (phy_ctxt->width == def->width)
3979 goto out_unlock;
3980
3981 /* we are just toggling between 20_NOHT and 20 */
3982 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&
3983 def->width <= NL80211_CHAN_WIDTH_20)
3984 goto out_unlock;
3985 }
3986
3987 iwl_mvm_bt_coex_vif_change(mvm);
3988 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def,
3989 ctx->rx_chains_static,
3990 ctx->rx_chains_dynamic);
3991
3992out_unlock:
3993 mutex_unlock(&mvm->mutex);
3994}
3995
3996static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3997 struct ieee80211_vif *vif,
3998 struct ieee80211_chanctx_conf *ctx,
3999 bool switching_chanctx)
4000{
4001 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4002 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4003 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4004 int ret;
4005
4006 lockdep_assert_held(&mvm->mutex);
4007
4008 mvmvif->phy_ctxt = phy_ctxt;
4009
4010 switch (vif->type) {
4011 case NL80211_IFTYPE_AP:
4012 /* only needed if we're switching chanctx (i.e. during CSA) */
4013 if (switching_chanctx) {
4014 mvmvif->ap_ibss_active = true;
4015 break;
4016 }
4017 /* fall through */
4018 case NL80211_IFTYPE_ADHOC:
4019 /*
4020 * The AP binding flow is handled as part of the start_ap flow
4021 * (in bss_info_changed), similarly for IBSS.
4022 */
4023 ret = 0;
4024 goto out;
4025 case NL80211_IFTYPE_STATION:
4026 mvmvif->csa_bcn_pending = false;
4027 break;
4028 case NL80211_IFTYPE_MONITOR:
4029 /* always disable PS when a monitor interface is active */
4030 mvmvif->ps_disabled = true;
4031 break;
4032 default:
4033 ret = -EINVAL;
4034 goto out;
4035 }
4036
4037 ret = iwl_mvm_binding_add_vif(mvm, vif);
4038 if (ret)
4039 goto out;
4040
4041 /*
4042 * Power state must be updated before quotas,
4043 * otherwise fw will complain.
4044 */
4045 iwl_mvm_power_update_mac(mvm);
4046
4047 /* Setting the quota at this stage is only required for monitor
4048 * interfaces. For the other types, the bss_info changed flow
4049 * will handle quota settings.
4050 */
4051 if (vif->type == NL80211_IFTYPE_MONITOR) {
4052 mvmvif->monitor_active = true;
4053 ret = iwl_mvm_update_quotas(mvm, false, NULL);
4054 if (ret)
4055 goto out_remove_binding;
4056
4057 ret = iwl_mvm_add_snif_sta(mvm, vif);
4058 if (ret)
4059 goto out_remove_binding;
4060
4061 }
4062
4063 /* Handle binding during CSA */
4064 if (vif->type == NL80211_IFTYPE_AP) {
4065 iwl_mvm_update_quotas(mvm, false, NULL);
4066 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
4067 }
4068
4069 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
4070 mvmvif->csa_bcn_pending = true;
4071
4072 if (!fw_has_capa(&mvm->fw->ucode_capa,
4073 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
4074 u32 duration = 3 * vif->bss_conf.beacon_int;
4075
4076 /* Protect the session to make sure we hear the first
4077 * beacon on the new channel.
4078 */
4079 iwl_mvm_protect_session(mvm, vif, duration, duration,
4080 vif->bss_conf.beacon_int / 2,
4081 true);
4082 }
4083
4084 iwl_mvm_update_quotas(mvm, false, NULL);
4085 }
4086
4087 goto out;
4088
4089out_remove_binding:
4090 iwl_mvm_binding_remove_vif(mvm, vif);
4091 iwl_mvm_power_update_mac(mvm);
4092out:
4093 if (ret)
4094 mvmvif->phy_ctxt = NULL;
4095 return ret;
4096}
4097static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
4098 struct ieee80211_vif *vif,
4099 struct ieee80211_chanctx_conf *ctx)
4100{
4101 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4102 int ret;
4103
4104 mutex_lock(&mvm->mutex);
4105 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
4106 mutex_unlock(&mvm->mutex);
4107
4108 return ret;
4109}
4110
4111static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
4112 struct ieee80211_vif *vif,
4113 struct ieee80211_chanctx_conf *ctx,
4114 bool switching_chanctx)
4115{
4116 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4117 struct ieee80211_vif *disabled_vif = NULL;
4118
4119 lockdep_assert_held(&mvm->mutex);
4120
4121 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
4122
4123 switch (vif->type) {
4124 case NL80211_IFTYPE_ADHOC:
4125 goto out;
4126 case NL80211_IFTYPE_MONITOR:
4127 mvmvif->monitor_active = false;
4128 mvmvif->ps_disabled = false;
4129 iwl_mvm_rm_snif_sta(mvm, vif);
4130 break;
4131 case NL80211_IFTYPE_AP:
4132 /* This part is triggered only during CSA */
4133 if (!switching_chanctx || !mvmvif->ap_ibss_active)
4134 goto out;
4135
4136 mvmvif->csa_countdown = false;
4137
4138 /* Set CS bit on all the stations */
4139 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
4140
4141 /* Save blocked iface, the timeout is set on the next beacon */
4142 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
4143
4144 mvmvif->ap_ibss_active = false;
4145 break;
4146 case NL80211_IFTYPE_STATION:
4147 if (!switching_chanctx)
4148 break;
4149
4150 disabled_vif = vif;
4151
4152 if (!fw_has_capa(&mvm->fw->ucode_capa,
4153 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
4154 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
4155 break;
4156 default:
4157 break;
4158 }
4159
4160 iwl_mvm_update_quotas(mvm, false, disabled_vif);
4161 iwl_mvm_binding_remove_vif(mvm, vif);
4162
4163out:
4164 mvmvif->phy_ctxt = NULL;
4165 iwl_mvm_power_update_mac(mvm);
4166}
4167
4168static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
4169 struct ieee80211_vif *vif,
4170 struct ieee80211_chanctx_conf *ctx)
4171{
4172 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4173
4174 mutex_lock(&mvm->mutex);
4175 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
4176 mutex_unlock(&mvm->mutex);
4177}
4178
4179static int
4180iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
4181 struct ieee80211_vif_chanctx_switch *vifs)
4182{
4183 int ret;
4184
4185 mutex_lock(&mvm->mutex);
4186 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
4187 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
4188
4189 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
4190 if (ret) {
4191 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
4192 goto out_reassign;
4193 }
4194
4195 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
4196 true);
4197 if (ret) {
4198 IWL_ERR(mvm,
4199 "failed to assign new_ctx during channel switch\n");
4200 goto out_remove;
4201 }
4202
4203 /* we don't support TDLS during DCM - can be caused by channel switch */
4204 if (iwl_mvm_phy_ctx_count(mvm) > 1)
4205 iwl_mvm_teardown_tdls_peers(mvm);
4206
4207 goto out;
4208
4209out_remove:
4210 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
4211
4212out_reassign:
4213 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
4214 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
4215 goto out_restart;
4216 }
4217
4218 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
4219 true)) {
4220 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
4221 goto out_restart;
4222 }
4223
4224 goto out;
4225
4226out_restart:
4227 /* things keep failing, better restart the hw */
4228 iwl_mvm_nic_restart(mvm, false);
4229
4230out:
4231 mutex_unlock(&mvm->mutex);
4232
4233 return ret;
4234}
4235
4236static int
4237iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
4238 struct ieee80211_vif_chanctx_switch *vifs)
4239{
4240 int ret;
4241
4242 mutex_lock(&mvm->mutex);
4243 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
4244
4245 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
4246 true);
4247 if (ret) {
4248 IWL_ERR(mvm,
4249 "failed to assign new_ctx during channel switch\n");
4250 goto out_reassign;
4251 }
4252
4253 goto out;
4254
4255out_reassign:
4256 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
4257 true)) {
4258 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
4259 goto out_restart;
4260 }
4261
4262 goto out;
4263
4264out_restart:
4265 /* things keep failing, better restart the hw */
4266 iwl_mvm_nic_restart(mvm, false);
4267
4268out:
4269 mutex_unlock(&mvm->mutex);
4270
4271 return ret;
4272}
4273
4274static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
4275 struct ieee80211_vif_chanctx_switch *vifs,
4276 int n_vifs,
4277 enum ieee80211_chanctx_switch_mode mode)
4278{
4279 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4280 int ret;
4281
4282 /* we only support a single-vif right now */
4283 if (n_vifs > 1)
4284 return -EOPNOTSUPP;
4285
4286 switch (mode) {
4287 case CHANCTX_SWMODE_SWAP_CONTEXTS:
4288 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
4289 break;
4290 case CHANCTX_SWMODE_REASSIGN_VIF:
4291 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
4292 break;
4293 default:
4294 ret = -EOPNOTSUPP;
4295 break;
4296 }
4297
4298 return ret;
4299}
4300
4301static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
4302{
4303 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4304
4305 return mvm->ibss_manager;
4306}
4307
4308static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
4309 struct ieee80211_sta *sta,
4310 bool set)
4311{
4312 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4313 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
4314
4315 if (!mvm_sta || !mvm_sta->vif) {
4316 IWL_ERR(mvm, "Station is not associated to a vif\n");
4317 return -EINVAL;
4318 }
4319
4320 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
4321}
4322
4323#ifdef CONFIG_NL80211_TESTMODE
4324static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
4325 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
4326 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
4327 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
4328};
4329
4330static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
4331 struct ieee80211_vif *vif,
4332 void *data, int len)
4333{
4334 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
4335 int err;
4336 u32 noa_duration;
4337
4338 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len,
4339 iwl_mvm_tm_policy, NULL);
4340 if (err)
4341 return err;
4342
4343 if (!tb[IWL_MVM_TM_ATTR_CMD])
4344 return -EINVAL;
4345
4346 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
4347 case IWL_MVM_TM_CMD_SET_NOA:
4348 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
4349 !vif->bss_conf.enable_beacon ||
4350 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
4351 return -EINVAL;
4352
4353 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
4354 if (noa_duration >= vif->bss_conf.beacon_int)
4355 return -EINVAL;
4356
4357 mvm->noa_duration = noa_duration;
4358 mvm->noa_vif = vif;
4359
4360 return iwl_mvm_update_quotas(mvm, true, NULL);
4361 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
4362 /* must be associated client vif - ignore authorized */
4363 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
4364 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
4365 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
4366 return -EINVAL;
4367
4368 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
4369 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
4370 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
4371 }
4372
4373 return -EOPNOTSUPP;
4374}
4375
4376static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
4377 struct ieee80211_vif *vif,
4378 void *data, int len)
4379{
4380 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4381 int err;
4382
4383 mutex_lock(&mvm->mutex);
4384 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
4385 mutex_unlock(&mvm->mutex);
4386
4387 return err;
4388}
4389#endif
4390
4391static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
4392 struct ieee80211_vif *vif,
4393 struct ieee80211_channel_switch *chsw)
4394{
4395 /* By implementing this operation, we prevent mac80211 from
4396 * starting its own channel switch timer, so that we can call
4397 * ieee80211_chswitch_done() ourselves at the right time
4398 * (which is when the absence time event starts).
4399 */
4400
4401 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
4402 "dummy channel switch op\n");
4403}
4404
4405static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm,
4406 struct ieee80211_vif *vif,
4407 struct ieee80211_channel_switch *chsw)
4408{
4409 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4410 struct iwl_chan_switch_te_cmd cmd = {
4411 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
4412 mvmvif->color)),
4413 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
4414 .tsf = cpu_to_le32(chsw->timestamp),
4415 .cs_count = chsw->count,
4416 .cs_mode = chsw->block_tx,
4417 };
4418
4419 lockdep_assert_held(&mvm->mutex);
4420
4421 if (chsw->delay)
4422 cmd.cs_delayed_bcn_count =
4423 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int);
4424
4425 return iwl_mvm_send_cmd_pdu(mvm,
4426 WIDE_ID(MAC_CONF_GROUP,
4427 CHANNEL_SWITCH_TIME_EVENT_CMD),
4428 0, sizeof(cmd), &cmd);
4429}
4430
4431static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm,
4432 struct ieee80211_vif *vif,
4433 struct ieee80211_channel_switch *chsw)
4434{
4435 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4436 u32 apply_time;
4437
4438 /* Schedule the time event to a bit before beacon 1,
4439 * to make sure we're in the new channel when the
4440 * GO/AP arrives. In case count <= 1 immediately schedule the
4441 * TE (this might result with some packet loss or connection
4442 * loss).
4443 */
4444 if (chsw->count <= 1)
4445 apply_time = 0;
4446 else
4447 apply_time = chsw->device_timestamp +
4448 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
4449 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
4450
4451 if (chsw->block_tx)
4452 iwl_mvm_csa_client_absent(mvm, vif);
4453
4454 if (mvmvif->bf_data.bf_enabled) {
4455 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
4456
4457 if (ret)
4458 return ret;
4459 }
4460
4461 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
4462 apply_time);
4463
4464 return 0;
4465}
4466
4467#define IWL_MAX_CSA_BLOCK_TX 1500
4468static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
4469 struct ieee80211_vif *vif,
4470 struct ieee80211_channel_switch *chsw)
4471{
4472 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4473 struct ieee80211_vif *csa_vif;
4474 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4475 int ret;
4476
4477 mutex_lock(&mvm->mutex);
4478
4479 mvmvif->csa_failed = false;
4480
4481 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
4482 chsw->chandef.center_freq1);
4483
4484 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
4485 ieee80211_vif_to_wdev(vif),
4486 FW_DBG_TRIGGER_CHANNEL_SWITCH);
4487
4488 switch (vif->type) {
4489 case NL80211_IFTYPE_AP:
4490 csa_vif =
4491 rcu_dereference_protected(mvm->csa_vif,
4492 lockdep_is_held(&mvm->mutex));
4493 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
4494 "Another CSA is already in progress")) {
4495 ret = -EBUSY;
4496 goto out_unlock;
4497 }
4498
4499 /* we still didn't unblock tx. prevent new CS meanwhile */
4500 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
4501 lockdep_is_held(&mvm->mutex))) {
4502 ret = -EBUSY;
4503 goto out_unlock;
4504 }
4505
4506 rcu_assign_pointer(mvm->csa_vif, vif);
4507
4508 if (WARN_ONCE(mvmvif->csa_countdown,
4509 "Previous CSA countdown didn't complete")) {
4510 ret = -EBUSY;
4511 goto out_unlock;
4512 }
4513
4514 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
4515
4516 break;
4517 case NL80211_IFTYPE_STATION:
4518 if (chsw->block_tx) {
4519 /*
4520 * In case of undetermined / long time with immediate
4521 * quiet monitor status to gracefully disconnect
4522 */
4523 if (!chsw->count ||
4524 chsw->count * vif->bss_conf.beacon_int >
4525 IWL_MAX_CSA_BLOCK_TX)
4526 schedule_delayed_work(&mvmvif->csa_work,
4527 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX));
4528 }
4529
4530 if (!fw_has_capa(&mvm->fw->ucode_capa,
4531 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
4532 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw);
4533 if (ret)
4534 goto out_unlock;
4535 } else {
4536 iwl_mvm_schedule_client_csa(mvm, vif, chsw);
4537 }
4538
4539 mvmvif->csa_count = chsw->count;
4540 mvmvif->csa_misbehave = false;
4541 break;
4542 default:
4543 break;
4544 }
4545
4546 mvmvif->ps_disabled = true;
4547
4548 ret = iwl_mvm_power_update_ps(mvm);
4549 if (ret)
4550 goto out_unlock;
4551
4552 /* we won't be on this channel any longer */
4553 iwl_mvm_teardown_tdls_peers(mvm);
4554
4555out_unlock:
4556 mutex_unlock(&mvm->mutex);
4557
4558 return ret;
4559}
4560
4561static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw,
4562 struct ieee80211_vif *vif,
4563 struct ieee80211_channel_switch *chsw)
4564{
4565 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4566 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4567 struct iwl_chan_switch_te_cmd cmd = {
4568 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
4569 mvmvif->color)),
4570 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY),
4571 .tsf = cpu_to_le32(chsw->timestamp),
4572 .cs_count = chsw->count,
4573 .cs_mode = chsw->block_tx,
4574 };
4575
4576 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY))
4577 return;
4578
4579 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) {
4580 if (mvmvif->csa_misbehave) {
4581 /* Second time, give up on this AP*/
4582 iwl_mvm_abort_channel_switch(hw, vif);
4583 ieee80211_chswitch_done(vif, false);
4584 mvmvif->csa_misbehave = false;
4585 return;
4586 }
4587 mvmvif->csa_misbehave = true;
4588 }
4589 mvmvif->csa_count = chsw->count;
4590
4591 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d\n", mvmvif->id);
4592
4593 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
4594 WIDE_ID(MAC_CONF_GROUP,
4595 CHANNEL_SWITCH_TIME_EVENT_CMD),
4596 CMD_ASYNC, sizeof(cmd), &cmd));
4597}
4598
4599static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
4600{
4601 int i;
4602
4603 if (!iwl_mvm_has_new_tx_api(mvm)) {
4604 if (drop) {
4605 mutex_lock(&mvm->mutex);
4606 iwl_mvm_flush_tx_path(mvm,
4607 iwl_mvm_flushable_queues(mvm) & queues, 0);
4608 mutex_unlock(&mvm->mutex);
4609 } else {
4610 iwl_trans_wait_tx_queues_empty(mvm->trans, queues);
4611 }
4612 return;
4613 }
4614
4615 mutex_lock(&mvm->mutex);
4616 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
4617 struct ieee80211_sta *sta;
4618
4619 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4620 lockdep_is_held(&mvm->mutex));
4621 if (IS_ERR_OR_NULL(sta))
4622 continue;
4623
4624 if (drop)
4625 iwl_mvm_flush_sta_tids(mvm, i, 0xFF, 0);
4626 else
4627 iwl_mvm_wait_sta_queues_empty(mvm,
4628 iwl_mvm_sta_from_mac80211(sta));
4629 }
4630 mutex_unlock(&mvm->mutex);
4631}
4632
4633static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
4634 struct ieee80211_vif *vif, u32 queues, bool drop)
4635{
4636 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4637 struct iwl_mvm_vif *mvmvif;
4638 struct iwl_mvm_sta *mvmsta;
4639 struct ieee80211_sta *sta;
4640 int i;
4641 u32 msk = 0;
4642
4643 if (!vif) {
4644 iwl_mvm_flush_no_vif(mvm, queues, drop);
4645 return;
4646 }
4647
4648 if (vif->type != NL80211_IFTYPE_STATION)
4649 return;
4650
4651 /* Make sure we're done with the deferred traffic before flushing */
4652 flush_work(&mvm->add_stream_wk);
4653
4654 mutex_lock(&mvm->mutex);
4655 mvmvif = iwl_mvm_vif_from_mac80211(vif);
4656
4657 /* flush the AP-station and all TDLS peers */
4658 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
4659 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4660 lockdep_is_held(&mvm->mutex));
4661 if (IS_ERR_OR_NULL(sta))
4662 continue;
4663
4664 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4665 if (mvmsta->vif != vif)
4666 continue;
4667
4668 /* make sure only TDLS peers or the AP are flushed */
4669 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
4670
4671 if (drop) {
4672 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0))
4673 IWL_ERR(mvm, "flush request fail\n");
4674 } else {
4675 msk |= mvmsta->tfd_queue_msk;
4676 if (iwl_mvm_has_new_tx_api(mvm))
4677 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
4678 }
4679 }
4680
4681 mutex_unlock(&mvm->mutex);
4682
4683 /* this can take a while, and we may need/want other operations
4684 * to succeed while doing this, so do it without the mutex held
4685 */
4686 if (!drop && !iwl_mvm_has_new_tx_api(mvm))
4687 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
4688}
4689
4690static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
4691 struct survey_info *survey)
4692{
4693 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4694 int ret;
4695
4696 memset(survey, 0, sizeof(*survey));
4697
4698 /* only support global statistics right now */
4699 if (idx != 0)
4700 return -ENOENT;
4701
4702 if (!fw_has_capa(&mvm->fw->ucode_capa,
4703 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
4704 return -ENOENT;
4705
4706 mutex_lock(&mvm->mutex);
4707
4708 if (iwl_mvm_firmware_running(mvm)) {
4709 ret = iwl_mvm_request_statistics(mvm, false);
4710 if (ret)
4711 goto out;
4712 }
4713
4714 survey->filled = SURVEY_INFO_TIME |
4715 SURVEY_INFO_TIME_RX |
4716 SURVEY_INFO_TIME_TX |
4717 SURVEY_INFO_TIME_SCAN;
4718 survey->time = mvm->accu_radio_stats.on_time_rf +
4719 mvm->radio_stats.on_time_rf;
4720 do_div(survey->time, USEC_PER_MSEC);
4721
4722 survey->time_rx = mvm->accu_radio_stats.rx_time +
4723 mvm->radio_stats.rx_time;
4724 do_div(survey->time_rx, USEC_PER_MSEC);
4725
4726 survey->time_tx = mvm->accu_radio_stats.tx_time +
4727 mvm->radio_stats.tx_time;
4728 do_div(survey->time_tx, USEC_PER_MSEC);
4729
4730 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
4731 mvm->radio_stats.on_time_scan;
4732 do_div(survey->time_scan, USEC_PER_MSEC);
4733
4734 ret = 0;
4735 out:
4736 mutex_unlock(&mvm->mutex);
4737 return ret;
4738}
4739
4740static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
4741 struct ieee80211_vif *vif,
4742 struct ieee80211_sta *sta,
4743 struct station_info *sinfo)
4744{
4745 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4746 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4747 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4748
4749 if (mvmsta->avg_energy) {
4750 sinfo->signal_avg = mvmsta->avg_energy;
4751 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
4752 }
4753
4754 /* if beacon filtering isn't on mac80211 does it anyway */
4755 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
4756 return;
4757
4758 if (!vif->bss_conf.assoc)
4759 return;
4760
4761 mutex_lock(&mvm->mutex);
4762
4763 if (mvmvif->ap_sta_id != mvmsta->sta_id)
4764 goto unlock;
4765
4766 if (iwl_mvm_request_statistics(mvm, false))
4767 goto unlock;
4768
4769 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
4770 mvmvif->beacon_stats.accu_num_beacons;
4771 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX);
4772 if (mvmvif->beacon_stats.avg_signal) {
4773 /* firmware only reports a value after RXing a few beacons */
4774 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
4775 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
4776 }
4777 unlock:
4778 mutex_unlock(&mvm->mutex);
4779}
4780
4781static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
4782 struct ieee80211_vif *vif,
4783 const struct ieee80211_event *event)
4784{
4785#define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
4786 do { \
4787 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
4788 break; \
4789 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
4790 } while (0)
4791
4792 struct iwl_fw_dbg_trigger_tlv *trig;
4793 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
4794
4795 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
4796 FW_DBG_TRIGGER_MLME);
4797 if (!trig)
4798 return;
4799
4800 trig_mlme = (void *)trig->data;
4801
4802 if (event->u.mlme.data == ASSOC_EVENT) {
4803 if (event->u.mlme.status == MLME_DENIED)
4804 CHECK_MLME_TRIGGER(stop_assoc_denied,
4805 "DENIED ASSOC: reason %d",
4806 event->u.mlme.reason);
4807 else if (event->u.mlme.status == MLME_TIMEOUT)
4808 CHECK_MLME_TRIGGER(stop_assoc_timeout,
4809 "ASSOC TIMEOUT");
4810 } else if (event->u.mlme.data == AUTH_EVENT) {
4811 if (event->u.mlme.status == MLME_DENIED)
4812 CHECK_MLME_TRIGGER(stop_auth_denied,
4813 "DENIED AUTH: reason %d",
4814 event->u.mlme.reason);
4815 else if (event->u.mlme.status == MLME_TIMEOUT)
4816 CHECK_MLME_TRIGGER(stop_auth_timeout,
4817 "AUTH TIMEOUT");
4818 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4819 CHECK_MLME_TRIGGER(stop_rx_deauth,
4820 "DEAUTH RX %d", event->u.mlme.reason);
4821 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4822 CHECK_MLME_TRIGGER(stop_tx_deauth,
4823 "DEAUTH TX %d", event->u.mlme.reason);
4824 }
4825#undef CHECK_MLME_TRIGGER
4826}
4827
4828static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4829 struct ieee80211_vif *vif,
4830 const struct ieee80211_event *event)
4831{
4832 struct iwl_fw_dbg_trigger_tlv *trig;
4833 struct iwl_fw_dbg_trigger_ba *ba_trig;
4834
4835 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
4836 FW_DBG_TRIGGER_BA);
4837 if (!trig)
4838 return;
4839
4840 ba_trig = (void *)trig->data;
4841
4842 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4843 return;
4844
4845 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4846 "BAR received from %pM, tid %d, ssn %d",
4847 event->u.ba.sta->addr, event->u.ba.tid,
4848 event->u.ba.ssn);
4849}
4850
4851static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4852 struct ieee80211_vif *vif,
4853 const struct ieee80211_event *event)
4854{
4855 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4856
4857 switch (event->type) {
4858 case MLME_EVENT:
4859 iwl_mvm_event_mlme_callback(mvm, vif, event);
4860 break;
4861 case BAR_RX_EVENT:
4862 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4863 break;
4864 case BA_FRAME_TIMEOUT:
4865 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,
4866 event->u.ba.tid);
4867 break;
4868 default:
4869 break;
4870 }
4871}
4872
4873void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
4874 struct iwl_mvm_internal_rxq_notif *notif,
4875 u32 size)
4876{
4877 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
4878 int ret;
4879
4880
4881 if (!iwl_mvm_has_new_rx_api(mvm))
4882 return;
4883
4884 if (notif->sync) {
4885 notif->cookie = mvm->queue_sync_cookie;
4886 atomic_set(&mvm->queue_sync_counter,
4887 mvm->trans->num_rx_queues);
4888 }
4889
4890 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif,
4891 size, !notif->sync);
4892 if (ret) {
4893 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
4894 goto out;
4895 }
4896
4897 if (notif->sync) {
4898 lockdep_assert_held(&mvm->mutex);
4899 ret = wait_event_timeout(mvm->rx_sync_waitq,
4900 atomic_read(&mvm->queue_sync_counter) == 0 ||
4901 iwl_mvm_is_radio_killed(mvm),
4902 HZ);
4903 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm));
4904 }
4905
4906out:
4907 atomic_set(&mvm->queue_sync_counter, 0);
4908 if (notif->sync)
4909 mvm->queue_sync_cookie++;
4910}
4911
4912static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
4913{
4914 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4915 struct iwl_mvm_internal_rxq_notif data = {
4916 .type = IWL_MVM_RXQ_EMPTY,
4917 .sync = 1,
4918 };
4919
4920 mutex_lock(&mvm->mutex);
4921 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
4922 mutex_unlock(&mvm->mutex);
4923}
4924
4925static int
4926iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw,
4927 struct ieee80211_vif *vif,
4928 struct cfg80211_ftm_responder_stats *stats)
4929{
4930 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4931 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4932
4933 if (vif->p2p || vif->type != NL80211_IFTYPE_AP ||
4934 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder)
4935 return -EINVAL;
4936
4937 mutex_lock(&mvm->mutex);
4938 *stats = mvm->ftm_resp_stats;
4939 mutex_unlock(&mvm->mutex);
4940
4941 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) |
4942 BIT(NL80211_FTM_STATS_PARTIAL_NUM) |
4943 BIT(NL80211_FTM_STATS_FAILED_NUM) |
4944 BIT(NL80211_FTM_STATS_ASAP_NUM) |
4945 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) |
4946 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) |
4947 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) |
4948 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) |
4949 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM);
4950
4951 return 0;
4952}
4953
4954static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw,
4955 struct ieee80211_vif *vif,
4956 struct cfg80211_pmsr_request *request)
4957{
4958 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4959 int ret;
4960
4961 mutex_lock(&mvm->mutex);
4962 ret = iwl_mvm_ftm_start(mvm, vif, request);
4963 mutex_unlock(&mvm->mutex);
4964
4965 return ret;
4966}
4967
4968static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw,
4969 struct ieee80211_vif *vif,
4970 struct cfg80211_pmsr_request *request)
4971{
4972 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4973
4974 mutex_lock(&mvm->mutex);
4975 iwl_mvm_ftm_abort(mvm, request);
4976 mutex_unlock(&mvm->mutex);
4977}
4978
4979static bool iwl_mvm_can_hw_csum(struct sk_buff *skb)
4980{
4981 u8 protocol = ip_hdr(skb)->protocol;
4982
4983 if (!IS_ENABLED(CONFIG_INET))
4984 return false;
4985
4986 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP;
4987}
4988
4989static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw,
4990 struct sk_buff *head,
4991 struct sk_buff *skb)
4992{
4993 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4994
4995 /* For now don't aggregate IPv6 in AMSDU */
4996 if (skb->protocol != htons(ETH_P_IP))
4997 return false;
4998
4999 if (!iwl_mvm_is_csum_supported(mvm))
5000 return true;
5001
5002 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head);
5003}
5004
5005const struct ieee80211_ops iwl_mvm_hw_ops = {
5006 .tx = iwl_mvm_mac_tx,
5007 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue,
5008 .ampdu_action = iwl_mvm_mac_ampdu_action,
5009 .start = iwl_mvm_mac_start,
5010 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
5011 .stop = iwl_mvm_mac_stop,
5012 .add_interface = iwl_mvm_mac_add_interface,
5013 .remove_interface = iwl_mvm_mac_remove_interface,
5014 .config = iwl_mvm_mac_config,
5015 .prepare_multicast = iwl_mvm_prepare_multicast,
5016 .configure_filter = iwl_mvm_configure_filter,
5017 .config_iface_filter = iwl_mvm_config_iface_filter,
5018 .bss_info_changed = iwl_mvm_bss_info_changed,
5019 .hw_scan = iwl_mvm_mac_hw_scan,
5020 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
5021 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
5022 .sta_state = iwl_mvm_mac_sta_state,
5023 .sta_notify = iwl_mvm_mac_sta_notify,
5024 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
5025 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
5026 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
5027 .sta_rc_update = iwl_mvm_sta_rc_update,
5028 .conf_tx = iwl_mvm_mac_conf_tx,
5029 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
5030 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
5031 .flush = iwl_mvm_mac_flush,
5032 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
5033 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
5034 .set_key = iwl_mvm_mac_set_key,
5035 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
5036 .remain_on_channel = iwl_mvm_roc,
5037 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
5038 .add_chanctx = iwl_mvm_add_chanctx,
5039 .remove_chanctx = iwl_mvm_remove_chanctx,
5040 .change_chanctx = iwl_mvm_change_chanctx,
5041 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
5042 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
5043 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
5044
5045 .start_ap = iwl_mvm_start_ap_ibss,
5046 .stop_ap = iwl_mvm_stop_ap_ibss,
5047 .join_ibss = iwl_mvm_start_ap_ibss,
5048 .leave_ibss = iwl_mvm_stop_ap_ibss,
5049
5050 .tx_last_beacon = iwl_mvm_tx_last_beacon,
5051
5052 .set_tim = iwl_mvm_set_tim,
5053
5054 .channel_switch = iwl_mvm_channel_switch,
5055 .pre_channel_switch = iwl_mvm_pre_channel_switch,
5056 .post_channel_switch = iwl_mvm_post_channel_switch,
5057 .abort_channel_switch = iwl_mvm_abort_channel_switch,
5058 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon,
5059
5060 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
5061 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
5062 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
5063
5064 .event_callback = iwl_mvm_mac_event_callback,
5065
5066 .sync_rx_queues = iwl_mvm_sync_rx_queues,
5067
5068 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
5069
5070#ifdef CONFIG_PM_SLEEP
5071 /* look at d3.c */
5072 .suspend = iwl_mvm_suspend,
5073 .resume = iwl_mvm_resume,
5074 .set_wakeup = iwl_mvm_set_wakeup,
5075 .set_rekey_data = iwl_mvm_set_rekey_data,
5076#if IS_ENABLED(CONFIG_IPV6)
5077 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
5078#endif
5079 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
5080#endif
5081 .get_survey = iwl_mvm_mac_get_survey,
5082 .sta_statistics = iwl_mvm_mac_sta_statistics,
5083 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats,
5084 .start_pmsr = iwl_mvm_start_pmsr,
5085 .abort_pmsr = iwl_mvm_abort_pmsr,
5086
5087 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate,
5088#ifdef CONFIG_IWLWIFI_DEBUGFS
5089 .sta_add_debugfs = iwl_mvm_sta_add_debugfs,
5090#endif
5091};