1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2012-2014, 2018-2024 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
7 #include <linux/kernel.h>
8 #include <linux/slab.h>
9 #include <linux/skbuff.h>
10 #include <linux/netdevice.h>
11 #include <linux/etherdevice.h>
12 #include <linux/ip.h>
13 #include <linux/if_arp.h>
14 #include <linux/time.h>
15 #include <net/mac80211.h>
16 #include <net/ieee80211_radiotap.h>
17 #include <net/tcp.h>
18
19 #include "iwl-drv.h"
20 #include "iwl-op-mode.h"
21 #include "iwl-io.h"
22 #include "mvm.h"
23 #include "sta.h"
24 #include "time-event.h"
25 #include "iwl-nvm-utils.h"
26 #include "iwl-phy-db.h"
27 #include "testmode.h"
28 #include "fw/error-dump.h"
29 #include "iwl-prph.h"
30 #include "iwl-nvm-parse.h"
31 #include "time-sync.h"
32
33 #define IWL_MVM_LIMITS(ap) \
34 { \
35 .max = 1, \
36 .types = BIT(NL80211_IFTYPE_STATION), \
37 }, \
38 { \
39 .max = 1, \
40 .types = ap | \
41 BIT(NL80211_IFTYPE_P2P_CLIENT) | \
42 BIT(NL80211_IFTYPE_P2P_GO), \
43 }, \
44 { \
45 .max = 1, \
46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE), \
47 }
48
49 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
50 IWL_MVM_LIMITS(0)
51 };
52
53 static const struct ieee80211_iface_limit iwl_mvm_limits_ap[] = {
54 IWL_MVM_LIMITS(BIT(NL80211_IFTYPE_AP))
55 };
56
57 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
58 {
59 .num_different_channels = 2,
60 .max_interfaces = 3,
61 .limits = iwl_mvm_limits,
62 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
63 },
64 {
65 .num_different_channels = 1,
66 .max_interfaces = 3,
67 .limits = iwl_mvm_limits_ap,
68 .n_limits = ARRAY_SIZE(iwl_mvm_limits_ap),
69 },
70 };
71
72 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = {
73 .max_peers = IWL_MVM_TOF_MAX_APS,
74 .report_ap_tsf = 1,
75 .randomize_mac_addr = 1,
76
77 .ftm = {
78 .supported = 1,
79 .asap = 1,
80 .non_asap = 1,
81 .request_lci = 1,
82 .request_civicloc = 1,
83 .trigger_based = 1,
84 .non_trigger_based = 1,
85 .max_bursts_exponent = -1, /* all supported */
86 .max_ftms_per_burst = 0, /* no limits */
87 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
88 BIT(NL80211_CHAN_WIDTH_20) |
89 BIT(NL80211_CHAN_WIDTH_40) |
90 BIT(NL80211_CHAN_WIDTH_80) |
91 BIT(NL80211_CHAN_WIDTH_160),
92 .preambles = BIT(NL80211_PREAMBLE_LEGACY) |
93 BIT(NL80211_PREAMBLE_HT) |
94 BIT(NL80211_PREAMBLE_VHT) |
95 BIT(NL80211_PREAMBLE_HE),
96 },
97 };
98
99 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
100 enum set_key_cmd cmd,
101 struct ieee80211_vif *vif,
102 struct ieee80211_sta *sta,
103 struct ieee80211_key_conf *key);
104
iwl_mvm_reset_phy_ctxts(struct iwl_mvm * mvm)105 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
106 {
107 int i;
108
109 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
110 for (i = 0; i < NUM_PHY_CTX; i++) {
111 mvm->phy_ctxts[i].id = i;
112 mvm->phy_ctxts[i].ref = 0;
113 }
114 }
115
iwl_mvm_get_regdomain(struct wiphy * wiphy,const char * alpha2,enum iwl_mcc_source src_id,bool * changed)116 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
117 const char *alpha2,
118 enum iwl_mcc_source src_id,
119 bool *changed)
120 {
121 struct ieee80211_regdomain *regd = NULL;
122 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
124 struct iwl_mcc_update_resp_v8 *resp;
125 u8 resp_ver;
126
127 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
128
129 lockdep_assert_held(&mvm->mutex);
130
131 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
132 if (IS_ERR_OR_NULL(resp)) {
133 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
134 PTR_ERR_OR_ZERO(resp));
135 resp = NULL;
136 goto out;
137 }
138
139 if (changed) {
140 u32 status = le32_to_cpu(resp->status);
141
142 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE ||
143 status == MCC_RESP_ILLEGAL);
144 }
145 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP,
146 MCC_UPDATE_CMD, 0);
147 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver);
148
149 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
150 __le32_to_cpu(resp->n_channels),
151 resp->channels,
152 __le16_to_cpu(resp->mcc),
153 __le16_to_cpu(resp->geo_info),
154 le32_to_cpu(resp->cap), resp_ver);
155 /* Store the return source id */
156 src_id = resp->source_id;
157 if (IS_ERR_OR_NULL(regd)) {
158 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
159 PTR_ERR_OR_ZERO(regd));
160 goto out;
161 }
162
163 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
164 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
165 mvm->lar_regdom_set = true;
166 mvm->mcc_src = src_id;
167
168 if (!iwl_puncturing_is_allowed_in_bios(mvm->bios_enable_puncturing,
169 le16_to_cpu(resp->mcc)))
170 ieee80211_hw_set(mvm->hw, DISALLOW_PUNCTURING);
171 else
172 __clear_bit(IEEE80211_HW_DISALLOW_PUNCTURING, mvm->hw->flags);
173
174 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc));
175
176 out:
177 kfree(resp);
178 return regd;
179 }
180
iwl_mvm_update_changed_regdom(struct iwl_mvm * mvm)181 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
182 {
183 bool changed;
184 struct ieee80211_regdomain *regd;
185
186 if (!iwl_mvm_is_lar_supported(mvm))
187 return;
188
189 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
190 if (!IS_ERR_OR_NULL(regd)) {
191 /* only update the regulatory core if changed */
192 if (changed)
193 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
194
195 kfree(regd);
196 }
197 }
198
iwl_mvm_get_current_regdomain(struct iwl_mvm * mvm,bool * changed)199 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
200 bool *changed)
201 {
202 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
203 iwl_mvm_is_wifi_mcc_supported(mvm) ?
204 MCC_SOURCE_GET_CURRENT :
205 MCC_SOURCE_OLD_FW, changed);
206 }
207
iwl_mvm_init_fw_regd(struct iwl_mvm * mvm,bool force_regd_sync)208 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm, bool force_regd_sync)
209 {
210 enum iwl_mcc_source used_src;
211 struct ieee80211_regdomain *regd;
212 int ret;
213 bool changed;
214 const struct ieee80211_regdomain *r =
215 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd);
216
217 if (!r)
218 return -ENOENT;
219
220 /* save the last source in case we overwrite it below */
221 used_src = mvm->mcc_src;
222 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
223 /* Notify the firmware we support wifi location updates */
224 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
225 if (!IS_ERR_OR_NULL(regd))
226 kfree(regd);
227 }
228
229 /* Now set our last stored MCC and source */
230 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
231 &changed);
232 if (IS_ERR_OR_NULL(regd))
233 return -EIO;
234
235 /* update cfg80211 if the regdomain was changed or the caller explicitly
236 * asked to update regdomain
237 */
238 if (changed || force_regd_sync)
239 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd);
240 else
241 ret = 0;
242
243 kfree(regd);
244 return ret;
245 }
246
247 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */
248 static const u8 he_if_types_ext_capa_sta[] = {
249 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
250 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,
251 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
252 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
253 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
254 };
255
256 static const u8 tm_if_types_ext_capa_sta[] = {
257 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
258 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT |
259 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT,
260 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
261 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
262 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
263 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT,
264 };
265
266 /* Additional interface types for which extended capabilities are
267 * specified separately
268 */
269
270 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \
271 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \
272 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \
273 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \
274 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY))
275 #define IWL_MVM_MLD_CAPA_OPS FIELD_PREP_CONST( \
276 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP, \
277 IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME)
278
279 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = {
280 {
281 .iftype = NL80211_IFTYPE_STATION,
282 .extended_capabilities = he_if_types_ext_capa_sta,
283 .extended_capabilities_mask = he_if_types_ext_capa_sta,
284 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta),
285 /* relevant only if EHT is supported */
286 .eml_capabilities = IWL_MVM_EMLSR_CAPA,
287 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS,
288 },
289 {
290 .iftype = NL80211_IFTYPE_STATION,
291 .extended_capabilities = tm_if_types_ext_capa_sta,
292 .extended_capabilities_mask = tm_if_types_ext_capa_sta,
293 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta),
294 /* relevant only if EHT is supported */
295 .eml_capabilities = IWL_MVM_EMLSR_CAPA,
296 .mld_capa_and_ops = IWL_MVM_MLD_CAPA_OPS,
297 },
298 };
299
iwl_mvm_op_get_antenna(struct ieee80211_hw * hw,u32 * tx_ant,u32 * rx_ant)300 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
301 {
302 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
303 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
304 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm);
305 return 0;
306 }
307
iwl_mvm_op_set_antenna(struct ieee80211_hw * hw,u32 tx_ant,u32 rx_ant)308 int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
309 {
310 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
311
312 /* This has been tested on those devices only */
313 if (mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_9000 &&
314 mvm->trans->trans_cfg->device_family != IWL_DEVICE_FAMILY_22000)
315 return -EOPNOTSUPP;
316
317 if (!mvm->nvm_data)
318 return -EBUSY;
319
320 /* mac80211 ensures the device is not started,
321 * so the firmware cannot be running
322 */
323
324 mvm->set_tx_ant = tx_ant;
325 mvm->set_rx_ant = rx_ant;
326
327 iwl_reinit_cab(mvm->trans, mvm->nvm_data, tx_ant, rx_ant, mvm->fw);
328
329 return 0;
330 }
331
iwl_mvm_mac_setup_register(struct iwl_mvm * mvm)332 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
333 {
334 struct ieee80211_hw *hw = mvm->hw;
335 int num_mac, ret, i;
336 static const u32 mvm_ciphers[] = {
337 WLAN_CIPHER_SUITE_WEP40,
338 WLAN_CIPHER_SUITE_WEP104,
339 WLAN_CIPHER_SUITE_TKIP,
340 WLAN_CIPHER_SUITE_CCMP,
341 };
342 #ifdef CONFIG_PM_SLEEP
343 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
344 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
345 #endif
346 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);
347 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);
348
349 /* Tell mac80211 our characteristics */
350 ieee80211_hw_set(hw, SIGNAL_DBM);
351 ieee80211_hw_set(hw, SPECTRUM_MGMT);
352 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
353 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
354 ieee80211_hw_set(hw, SUPPORTS_PS);
355 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
356 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
357 ieee80211_hw_set(hw, CONNECTION_MONITOR);
358 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
359 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
360 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
361 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
362 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
363 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
364 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ);
365 ieee80211_hw_set(hw, STA_MMPDU_TXQ);
366
367 /* Set this early since we need to have it for the check below */
368 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable &&
369 !iwlwifi_mod_params.disable_11ax &&
370 !iwlwifi_mod_params.disable_11be) {
371 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_MLO;
372 /* we handle this already earlier, but need it for MLO */
373 ieee80211_hw_set(hw, HANDLES_QUIET_CSA);
374 }
375
376 /* With MLD FW API, it tracks timing by itself,
377 * no need for any timing from the host
378 */
379 if (!mvm->mld_api_is_used)
380 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
381
382 /*
383 * On older devices, enabling TX A-MSDU occasionally leads to
384 * something getting messed up, the command read from the FIFO
385 * gets out of sync and isn't a TX command, so that we have an
386 * assert EDC.
387 *
388 * It's not clear where the bug is, but since we didn't used to
389 * support A-MSDU until moving the mac80211 iTXQs, just leave it
390 * for older devices. We also don't see this issue on any newer
391 * devices.
392 */
393 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000)
394 ieee80211_hw_set(hw, TX_AMSDU);
395 ieee80211_hw_set(hw, TX_FRAG_LIST);
396
397 if (iwl_mvm_has_tlc_offload(mvm)) {
398 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
399 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
400 }
401
402 /* We want to use the mac80211's reorder buffer for 9000 */
403 if (iwl_mvm_has_new_rx_api(mvm) &&
404 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000)
405 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
406
407 if (fw_has_capa(&mvm->fw->ucode_capa,
408 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
409 ieee80211_hw_set(hw, AP_LINK_PS);
410 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
411 /*
412 * we absolutely need this for the new TX API since that comes
413 * with many more queues than the current code can deal with
414 * for station powersave
415 */
416 return -EINVAL;
417 }
418
419 if (mvm->trans->num_rx_queues > 1)
420 ieee80211_hw_set(hw, USES_RSS);
421
422 if (mvm->trans->max_skb_frags)
423 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
424
425 hw->queues = IEEE80211_NUM_ACS;
426 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
427 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
428 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
429 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
430 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
431
432 hw->radiotap_timestamp.units_pos =
433 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
434 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
435 /* this is the case for CCK frames, it's better (only 8) for OFDM */
436 hw->radiotap_timestamp.accuracy = 22;
437
438 if (!iwl_mvm_has_tlc_offload(mvm))
439 hw->rate_control_algorithm = RS_NAME;
440
441 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
442 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
443 hw->max_tx_fragments = mvm->trans->max_skb_frags;
444
445 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
446 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
447 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
448 hw->wiphy->cipher_suites = mvm->ciphers;
449
450 if (iwl_mvm_has_new_rx_api(mvm)) {
451 mvm->ciphers[hw->wiphy->n_cipher_suites] =
452 WLAN_CIPHER_SUITE_GCMP;
453 hw->wiphy->n_cipher_suites++;
454 mvm->ciphers[hw->wiphy->n_cipher_suites] =
455 WLAN_CIPHER_SUITE_GCMP_256;
456 hw->wiphy->n_cipher_suites++;
457 }
458
459 if (iwlwifi_mod_params.swcrypto)
460 IWL_ERR(mvm,
461 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n");
462 if (!iwlwifi_mod_params.bt_coex_active)
463 IWL_ERR(mvm,
464 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n");
465
466 ieee80211_hw_set(hw, MFP_CAPABLE);
467 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC;
468 hw->wiphy->n_cipher_suites++;
469 if (iwl_mvm_has_new_rx_api(mvm)) {
470 mvm->ciphers[hw->wiphy->n_cipher_suites] =
471 WLAN_CIPHER_SUITE_BIP_GMAC_128;
472 hw->wiphy->n_cipher_suites++;
473 mvm->ciphers[hw->wiphy->n_cipher_suites] =
474 WLAN_CIPHER_SUITE_BIP_GMAC_256;
475 hw->wiphy->n_cipher_suites++;
476 }
477
478 wiphy_ext_feature_set(hw->wiphy,
479 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
480 wiphy_ext_feature_set(hw->wiphy,
481 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT);
482
483 if (fw_has_capa(&mvm->fw->ucode_capa,
484 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) {
485 wiphy_ext_feature_set(hw->wiphy,
486 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);
487 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa;
488 }
489
490 if (sec_key_ver &&
491 fw_has_capa(&mvm->fw->ucode_capa,
492 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT))
493 wiphy_ext_feature_set(hw->wiphy,
494 NL80211_EXT_FEATURE_BEACON_PROTECTION);
495 else if (fw_has_capa(&mvm->fw->ucode_capa,
496 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT))
497 wiphy_ext_feature_set(hw->wiphy,
498 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT);
499
500 if (fw_has_capa(&mvm->fw->ucode_capa,
501 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM))
502 hw->wiphy->hw_timestamp_max_peers = 1;
503
504 if (fw_has_capa(&mvm->fw->ucode_capa,
505 IWL_UCODE_TLV_CAPA_SPP_AMSDU_SUPPORT))
506 wiphy_ext_feature_set(hw->wiphy,
507 NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT);
508
509 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
510 hw->wiphy->features |=
511 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
512 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
513 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
514
515 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
516 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
517 hw->chanctx_data_size = sizeof(u16);
518 hw->txq_data_size = sizeof(struct iwl_mvm_txq);
519
520 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
521 BIT(NL80211_IFTYPE_P2P_CLIENT) |
522 BIT(NL80211_IFTYPE_AP) |
523 BIT(NL80211_IFTYPE_P2P_GO) |
524 BIT(NL80211_IFTYPE_P2P_DEVICE) |
525 BIT(NL80211_IFTYPE_ADHOC);
526
527 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
528 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
529
530 /* The new Tx API does not allow to pass the key or keyid of a MPDU to
531 * the hw, preventing us to control which key(id) to use per MPDU.
532 * Till that's fixed we can't use Extended Key ID for the newer cards.
533 */
534 if (!iwl_mvm_has_new_tx_api(mvm))
535 wiphy_ext_feature_set(hw->wiphy,
536 NL80211_EXT_FEATURE_EXT_KEY_ID);
537 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS;
538
539 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
540 if (iwl_mvm_is_lar_supported(mvm))
541 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
542 else
543 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
544 REGULATORY_DISABLE_BEACON_HINTS;
545
546 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
547 wiphy_ext_feature_set(hw->wiphy,
548 NL80211_EXT_FEATURE_DFS_CONCURRENT);
549
550 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
551 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
552 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ;
553
554 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
555 hw->wiphy->n_iface_combinations =
556 ARRAY_SIZE(iwl_mvm_iface_combinations);
557
558 hw->wiphy->max_remain_on_channel_duration = 10000;
559 hw->max_listen_interval = IWL_MVM_CONN_LISTEN_INTERVAL;
560
561 /* Extract MAC address */
562 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
563 hw->wiphy->addresses = mvm->addresses;
564 hw->wiphy->n_addresses = 1;
565
566 /* Extract additional MAC addresses if available */
567 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
568 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
569
570 for (i = 1; i < num_mac; i++) {
571 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
572 ETH_ALEN);
573 mvm->addresses[i].addr[5]++;
574 hw->wiphy->n_addresses++;
575 }
576
577 iwl_mvm_reset_phy_ctxts(mvm);
578
579 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
580
581 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
582
583 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
584 BUILD_BUG_ON(IWL_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
585 IWL_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
586
587 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
588 mvm->max_scans = IWL_MAX_UMAC_SCANS;
589 else
590 mvm->max_scans = IWL_MAX_LMAC_SCANS;
591
592 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
593 hw->wiphy->bands[NL80211_BAND_2GHZ] =
594 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
595 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
596 hw->wiphy->bands[NL80211_BAND_5GHZ] =
597 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
598
599 if (fw_has_capa(&mvm->fw->ucode_capa,
600 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
601 fw_has_api(&mvm->fw->ucode_capa,
602 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
603 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
604 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
605 }
606 if (fw_has_capa(&mvm->fw->ucode_capa,
607 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) &&
608 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels)
609 hw->wiphy->bands[NL80211_BAND_6GHZ] =
610 &mvm->nvm_data->bands[NL80211_BAND_6GHZ];
611
612 hw->wiphy->hw_version = mvm->trans->hw_id;
613
614 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
615 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
616 else
617 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
618
619 hw->wiphy->max_sched_scan_reqs = 1;
620 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
621 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw);
622 /* we create the 802.11 header and zero length SSID IE. */
623 hw->wiphy->max_sched_scan_ie_len =
624 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
625 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
626 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
627
628 /*
629 * the firmware uses u8 for num of iterations, but 0xff is saved for
630 * infinite loop, so the maximum number of iterations is actually 254.
631 */
632 hw->wiphy->max_sched_scan_plan_iterations = 254;
633
634 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
635 NL80211_FEATURE_LOW_PRIORITY_SCAN |
636 NL80211_FEATURE_P2P_GO_OPPPS |
637 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
638 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
639
640 /* when firmware supports RLC/SMPS offload, do not set these
641 * driver features, since it's no longer supported by driver.
642 */
643 if (!iwl_mvm_has_rlc_offload(mvm))
644 hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS |
645 NL80211_FEATURE_DYNAMIC_SMPS;
646
647 if (fw_has_capa(&mvm->fw->ucode_capa,
648 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
649 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
650 if (fw_has_capa(&mvm->fw->ucode_capa,
651 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
652 hw->wiphy->features |= NL80211_FEATURE_QUIET;
653
654 if (fw_has_capa(&mvm->fw->ucode_capa,
655 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
656 hw->wiphy->features |=
657 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
658
659 if (fw_has_capa(&mvm->fw->ucode_capa,
660 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
661 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
662
663 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL,
664 IWL_FW_CMD_VER_UNKNOWN) >= 3)
665 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK;
666
667 if (fw_has_api(&mvm->fw->ucode_capa,
668 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
669 wiphy_ext_feature_set(hw->wiphy,
670 NL80211_EXT_FEATURE_SCAN_START_TIME);
671 wiphy_ext_feature_set(hw->wiphy,
672 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
673 }
674
675 if (iwl_mvm_is_oce_supported(mvm)) {
676 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0);
677
678 wiphy_ext_feature_set(hw->wiphy,
679 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP);
680 wiphy_ext_feature_set(hw->wiphy,
681 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME);
682 wiphy_ext_feature_set(hw->wiphy,
683 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE);
684
685 /* Old firmware also supports probe deferral and suppression */
686 if (scan_ver < 15)
687 wiphy_ext_feature_set(hw->wiphy,
688 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION);
689 }
690
691 hw->wiphy->iftype_ext_capab = NULL;
692 hw->wiphy->num_iftype_ext_capab = 0;
693
694 if (mvm->nvm_data->sku_cap_11ax_enable &&
695 !iwlwifi_mod_params.disable_11ax) {
696 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa;
697 hw->wiphy->num_iftype_ext_capab =
698 ARRAY_SIZE(add_iftypes_ext_capa) - 1;
699
700 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
701 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID);
702 }
703
704 if (iwl_fw_lookup_cmd_ver(mvm->fw,
705 WIDE_ID(DATA_PATH_GROUP,
706 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD),
707 IWL_FW_CMD_VER_UNKNOWN) >= 1) {
708 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n");
709
710 if (!hw->wiphy->iftype_ext_capab) {
711 hw->wiphy->num_iftype_ext_capab = 1;
712 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa +
713 ARRAY_SIZE(add_iftypes_ext_capa) - 1;
714 } else {
715 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1;
716 }
717 }
718
719 if (iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(LOCATION_GROUP,
720 TOF_RANGE_REQ_CMD),
721 IWL_FW_CMD_VER_UNKNOWN) >= 11) {
722 wiphy_ext_feature_set(hw->wiphy,
723 NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE);
724
725 if (fw_has_capa(&mvm->fw->ucode_capa,
726 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT))
727 wiphy_ext_feature_set(hw->wiphy,
728 NL80211_EXT_FEATURE_SECURE_LTF);
729 }
730
731 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
732
733 ieee80211_hw_set(hw, DISALLOW_PUNCTURING_5GHZ);
734
735 #ifdef CONFIG_PM_SLEEP
736 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) &&
737 device_can_wakeup(mvm->trans->dev)) {
738 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
739 WIPHY_WOWLAN_DISCONNECT |
740 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
741 WIPHY_WOWLAN_RFKILL_RELEASE |
742 WIPHY_WOWLAN_NET_DETECT;
743 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
744 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
745 WIPHY_WOWLAN_4WAY_HANDSHAKE;
746
747 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
748 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
749 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
750 mvm->wowlan.max_nd_match_sets =
751 iwl_umac_scan_get_max_profiles(mvm->fw);
752 hw->wiphy->wowlan = &mvm->wowlan;
753 }
754 #endif
755
756 ret = iwl_mvm_leds_init(mvm);
757 if (ret)
758 return ret;
759
760 if (fw_has_capa(&mvm->fw->ucode_capa,
761 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
762 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
763 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
764 ieee80211_hw_set(hw, TDLS_WIDER_BW);
765 }
766
767 if (fw_has_capa(&mvm->fw->ucode_capa,
768 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
769 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
770 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
771 }
772
773 hw->netdev_features |= mvm->cfg->features;
774 if (!iwl_mvm_is_csum_supported(mvm))
775 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK;
776
777 if (mvm->cfg->vht_mu_mimo_supported)
778 wiphy_ext_feature_set(hw->wiphy,
779 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
780
781 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT))
782 wiphy_ext_feature_set(hw->wiphy,
783 NL80211_EXT_FEATURE_PROTECTED_TWT);
784
785 iwl_mvm_vendor_cmds_register(mvm);
786
787 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm);
788 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm);
789
790 ret = ieee80211_register_hw(mvm->hw);
791 if (ret) {
792 iwl_mvm_leds_exit(mvm);
793 }
794
795 return ret;
796 }
797
iwl_mvm_tx_skb(struct iwl_mvm * mvm,struct sk_buff * skb,struct ieee80211_sta * sta)798 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
799 struct ieee80211_sta *sta)
800 {
801 if (likely(sta)) {
802 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0))
803 return;
804 } else {
805 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0))
806 return;
807 }
808
809 ieee80211_free_txskb(mvm->hw, skb);
810 }
811
iwl_mvm_mac_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)812 void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
813 struct ieee80211_tx_control *control, struct sk_buff *skb)
814 {
815 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
816 struct ieee80211_sta *sta = control->sta;
817 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
818 struct ieee80211_hdr *hdr = (void *)skb->data;
819 bool offchannel = IEEE80211_SKB_CB(skb)->flags &
820 IEEE80211_TX_CTL_TX_OFFCHAN;
821 u32 link_id = u32_get_bits(info->control.flags,
822 IEEE80211_TX_CTRL_MLO_LINK);
823 struct ieee80211_sta *tmp_sta = sta;
824
825 if (iwl_mvm_is_radio_killed(mvm)) {
826 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
827 goto drop;
828 }
829
830 if (offchannel &&
831 !test_bit(IWL_MVM_STATUS_ROC_P2P_RUNNING, &mvm->status) &&
832 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
833 goto drop;
834
835 /*
836 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs
837 * so we treat the others as broadcast
838 */
839 if (ieee80211_is_mgmt(hdr->frame_control))
840 sta = NULL;
841
842 /* this shouldn't even happen: just drop */
843 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION &&
844 !offchannel)
845 goto drop;
846
847 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED &&
848 !ieee80211_is_probe_resp(hdr->frame_control)) {
849 /* translate MLD addresses to LINK addresses */
850 struct ieee80211_link_sta *link_sta =
851 rcu_dereference(tmp_sta->link[link_id]);
852 struct ieee80211_bss_conf *link_conf =
853 rcu_dereference(info->control.vif->link_conf[link_id]);
854 struct ieee80211_mgmt *mgmt;
855
856 if (WARN_ON(!link_sta || !link_conf))
857 goto drop;
858
859 /* if sta is NULL, the frame is a management frame */
860 mgmt = (void *)hdr;
861 memcpy(mgmt->da, link_sta->addr, ETH_ALEN);
862 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN);
863 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN);
864 }
865
866 iwl_mvm_tx_skb(mvm, skb, sta);
867 return;
868 drop:
869 ieee80211_free_txskb(hw, skb);
870 }
871
iwl_mvm_mac_itxq_xmit(struct ieee80211_hw * hw,struct ieee80211_txq * txq)872 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq)
873 {
874 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
875 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
876 struct sk_buff *skb = NULL;
877
878 /*
879 * No need for threads to be pending here, they can leave the first
880 * taker all the work.
881 *
882 * mvmtxq->tx_request logic:
883 *
884 * If 0, no one is currently TXing, set to 1 to indicate current thread
885 * will now start TX and other threads should quit.
886 *
887 * If 1, another thread is currently TXing, set to 2 to indicate to
888 * that thread that there was another request. Since that request may
889 * have raced with the check whether the queue is empty, the TXing
890 * thread should check the queue's status one more time before leaving.
891 * This check is done in order to not leave any TX hanging in the queue
892 * until the next TX invocation (which may not even happen).
893 *
894 * If 2, another thread is currently TXing, and it will already double
895 * check the queue, so do nothing.
896 */
897 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2))
898 return;
899
900 rcu_read_lock();
901 do {
902 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL,
903 &mvmtxq->state) &&
904 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT,
905 &mvmtxq->state) &&
906 !test_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA,
907 &mvmtxq->state) &&
908 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) {
909 skb = ieee80211_tx_dequeue(hw, txq);
910
911 if (!skb) {
912 if (txq->sta)
913 IWL_DEBUG_TX(mvm,
914 "TXQ of sta %pM tid %d is now empty\n",
915 txq->sta->addr,
916 txq->tid);
917 break;
918 }
919
920 iwl_mvm_tx_skb(mvm, skb, txq->sta);
921 }
922 } while (atomic_dec_return(&mvmtxq->tx_request));
923 rcu_read_unlock();
924 }
925
iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw * hw,struct ieee80211_txq * txq)926 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw,
927 struct ieee80211_txq *txq)
928 {
929 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
930 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
931
932 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) ||
933 !txq->sta) {
934 iwl_mvm_mac_itxq_xmit(hw, txq);
935 return;
936 }
937
938 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker
939 * to handle any packets we leave on the txq now
940 */
941
942 spin_lock_bh(&mvm->add_stream_lock);
943 /* The list is being deleted only after the queue is fully allocated. */
944 if (list_empty(&mvmtxq->list) &&
945 /* recheck under lock */
946 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) {
947 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs);
948 schedule_work(&mvm->add_stream_wk);
949 }
950 spin_unlock_bh(&mvm->add_stream_lock);
951 }
952
953 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
954 do { \
955 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
956 break; \
957 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
958 } while (0)
959
960 static void
iwl_mvm_ampdu_check_trigger(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u16 tid,u16 rx_ba_ssn,enum ieee80211_ampdu_mlme_action action)961 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
962 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
963 enum ieee80211_ampdu_mlme_action action)
964 {
965 struct iwl_fw_dbg_trigger_tlv *trig;
966 struct iwl_fw_dbg_trigger_ba *ba_trig;
967
968 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
969 FW_DBG_TRIGGER_BA);
970 if (!trig)
971 return;
972
973 ba_trig = (void *)trig->data;
974
975 switch (action) {
976 case IEEE80211_AMPDU_TX_OPERATIONAL: {
977 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
978 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
979
980 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
981 "TX AGG START: MAC %pM tid %d ssn %d\n",
982 sta->addr, tid, tid_data->ssn);
983 break;
984 }
985 case IEEE80211_AMPDU_TX_STOP_CONT:
986 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
987 "TX AGG STOP: MAC %pM tid %d\n",
988 sta->addr, tid);
989 break;
990 case IEEE80211_AMPDU_RX_START:
991 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
992 "RX AGG START: MAC %pM tid %d ssn %d\n",
993 sta->addr, tid, rx_ba_ssn);
994 break;
995 case IEEE80211_AMPDU_RX_STOP:
996 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
997 "RX AGG STOP: MAC %pM tid %d\n",
998 sta->addr, tid);
999 break;
1000 default:
1001 break;
1002 }
1003 }
1004
iwl_mvm_mac_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)1005 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
1006 struct ieee80211_vif *vif,
1007 struct ieee80211_ampdu_params *params)
1008 {
1009 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1010 int ret;
1011 struct ieee80211_sta *sta = params->sta;
1012 enum ieee80211_ampdu_mlme_action action = params->action;
1013 u16 tid = params->tid;
1014 u16 *ssn = ¶ms->ssn;
1015 u16 buf_size = params->buf_size;
1016 bool amsdu = params->amsdu;
1017 u16 timeout = params->timeout;
1018
1019 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
1020 sta->addr, tid, action);
1021
1022 if (!(mvm->nvm_data->sku_cap_11n_enable))
1023 return -EACCES;
1024
1025 mutex_lock(&mvm->mutex);
1026
1027 switch (action) {
1028 case IEEE80211_AMPDU_RX_START:
1029 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id ==
1030 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) {
1031 struct iwl_mvm_vif *mvmvif;
1032 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id;
1033 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid];
1034
1035 mdata->opened_rx_ba_sessions = true;
1036 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1037 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk);
1038 }
1039 if (!iwl_enable_rx_ampdu()) {
1040 ret = -EINVAL;
1041 break;
1042 }
1043 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
1044 timeout);
1045 break;
1046 case IEEE80211_AMPDU_RX_STOP:
1047 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
1048 timeout);
1049 break;
1050 case IEEE80211_AMPDU_TX_START:
1051 if (!iwl_enable_tx_ampdu()) {
1052 ret = -EINVAL;
1053 break;
1054 }
1055 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
1056 break;
1057 case IEEE80211_AMPDU_TX_STOP_CONT:
1058 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
1059 break;
1060 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1061 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1062 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
1063 break;
1064 case IEEE80211_AMPDU_TX_OPERATIONAL:
1065 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
1066 buf_size, amsdu);
1067 break;
1068 default:
1069 WARN_ON_ONCE(1);
1070 ret = -EINVAL;
1071 break;
1072 }
1073
1074 if (!ret) {
1075 u16 rx_ba_ssn = 0;
1076
1077 if (action == IEEE80211_AMPDU_RX_START)
1078 rx_ba_ssn = *ssn;
1079
1080 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1081 rx_ba_ssn, action);
1082 }
1083 mutex_unlock(&mvm->mutex);
1084
1085 return ret;
1086 }
1087
iwl_mvm_cleanup_iterator(void * data,u8 * mac,struct ieee80211_vif * vif)1088 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1089 struct ieee80211_vif *vif)
1090 {
1091 struct iwl_mvm *mvm = data;
1092 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1093 struct iwl_probe_resp_data *probe_data;
1094 unsigned int link_id;
1095
1096 mvmvif->uploaded = false;
1097
1098 spin_lock_bh(&mvm->time_event_lock);
1099 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1100 spin_unlock_bh(&mvm->time_event_lock);
1101
1102 mvmvif->roc_activity = ROC_NUM_ACTIVITIES;
1103
1104 mvmvif->bf_enabled = false;
1105 mvmvif->ba_enabled = false;
1106 mvmvif->ap_sta = NULL;
1107
1108 mvmvif->esr_active = false;
1109 vif->driver_flags &= ~IEEE80211_VIF_EML_ACTIVE;
1110
1111 for_each_mvm_vif_valid_link(mvmvif, link_id) {
1112 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA;
1113 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID;
1114 mvmvif->link[link_id]->phy_ctxt = NULL;
1115 mvmvif->link[link_id]->active = 0;
1116 mvmvif->link[link_id]->igtk = NULL;
1117 memset(&mvmvif->link[link_id]->bf_data, 0,
1118 sizeof(mvmvif->link[link_id]->bf_data));
1119 }
1120
1121 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,
1122 lockdep_is_held(&mvm->mutex));
1123 if (probe_data)
1124 kfree_rcu(probe_data, rcu_head);
1125 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);
1126 }
1127
iwl_mvm_cleanup_sta_iterator(void * data,struct ieee80211_sta * sta)1128 static void iwl_mvm_cleanup_sta_iterator(void *data, struct ieee80211_sta *sta)
1129 {
1130 struct iwl_mvm *mvm = data;
1131 struct iwl_mvm_sta *mvm_sta;
1132 struct ieee80211_vif *vif;
1133 int link_id;
1134
1135 mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1136 vif = mvm_sta->vif;
1137
1138 if (!sta->valid_links)
1139 return;
1140
1141 for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++) {
1142 struct iwl_mvm_link_sta *mvm_link_sta;
1143
1144 mvm_link_sta =
1145 rcu_dereference_check(mvm_sta->link[link_id],
1146 lockdep_is_held(&mvm->mutex));
1147 if (mvm_link_sta && !(vif->active_links & BIT(link_id))) {
1148 /*
1149 * We have a link STA but the link is inactive in
1150 * mac80211. This will happen if we failed to
1151 * deactivate the link but mac80211 roll back the
1152 * deactivation of the link.
1153 * Delete the stale data to avoid issues later on.
1154 */
1155 iwl_mvm_mld_free_sta_link(mvm, mvm_sta, mvm_link_sta,
1156 link_id, false);
1157 }
1158 }
1159 }
1160
iwl_mvm_restart_cleanup(struct iwl_mvm * mvm)1161 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1162 {
1163 iwl_mvm_stop_device(mvm);
1164
1165 mvm->cur_aid = 0;
1166
1167 mvm->scan_status = 0;
1168 mvm->ps_disabled = false;
1169 mvm->rfkill_safe_init_done = false;
1170
1171 /* just in case one was running */
1172 iwl_mvm_cleanup_roc_te(mvm);
1173 ieee80211_remain_on_channel_expired(mvm->hw);
1174
1175 iwl_mvm_ftm_restart(mvm);
1176
1177 /*
1178 * cleanup all interfaces, even inactive ones, as some might have
1179 * gone down during the HW restart
1180 */
1181 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
1182
1183 /* cleanup stations as links may be gone after restart */
1184 ieee80211_iterate_stations_atomic(mvm->hw,
1185 iwl_mvm_cleanup_sta_iterator, mvm);
1186
1187 mvm->p2p_device_vif = NULL;
1188
1189 iwl_mvm_reset_phy_ctxts(mvm);
1190 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1191 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1192 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1193
1194 ieee80211_wake_queues(mvm->hw);
1195
1196 mvm->rx_ba_sessions = 0;
1197 mvm->fwrt.dump.conf = FW_DBG_INVALID;
1198 mvm->monitor_on = false;
1199 #ifdef CONFIG_IWLWIFI_DEBUGFS
1200 mvm->beacon_inject_active = false;
1201 #endif
1202
1203 /* keep statistics ticking */
1204 iwl_mvm_accu_radio_stats(mvm);
1205 }
1206
__iwl_mvm_mac_start(struct iwl_mvm * mvm)1207 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1208 {
1209 bool fast_resume = false;
1210 int ret;
1211
1212 lockdep_assert_held(&mvm->mutex);
1213
1214 ret = iwl_mvm_mei_get_ownership(mvm);
1215 if (ret)
1216 return ret;
1217
1218 if (mvm->mei_nvm_data) {
1219 /* We got the NIC, we can now free the MEI NVM data */
1220 kfree(mvm->mei_nvm_data);
1221 mvm->mei_nvm_data = NULL;
1222
1223 /*
1224 * We can't free the nvm_data we allocated based on the SAP
1225 * data because we registered to cfg80211 with the channels
1226 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data
1227 * just in order to be able free it later.
1228 * NULLify nvm_data so that we will read the NVM from the
1229 * firmware this time.
1230 */
1231 mvm->temp_nvm_data = mvm->nvm_data;
1232 mvm->nvm_data = NULL;
1233 }
1234
1235 #ifdef CONFIG_PM_SLEEP
1236 /* fast_resume will be cleared by iwl_mvm_fast_resume */
1237 fast_resume = mvm->fast_resume;
1238
1239 if (fast_resume) {
1240 ret = iwl_mvm_fast_resume(mvm);
1241 if (ret) {
1242 iwl_mvm_stop_device(mvm);
1243 /* iwl_mvm_up() will be called further down */
1244 } else {
1245 /*
1246 * We clear IWL_MVM_STATUS_FIRMWARE_RUNNING upon
1247 * mac_down() so that debugfs will stop honoring
1248 * requests after we flush all the workers.
1249 * Set the IWL_MVM_STATUS_FIRMWARE_RUNNING bit again
1250 * now that we are back. This is a bit abusing the
1251 * flag since the firmware wasn't really ever stopped,
1252 * but this still serves the purpose.
1253 */
1254 set_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1255 }
1256 }
1257 #endif /* CONFIG_PM_SLEEP */
1258
1259 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1260 /*
1261 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1262 * so later code will - from now on - see that we're doing it.
1263 */
1264 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1265 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1266 /* Clean up some internal and mac80211 state on restart */
1267 iwl_mvm_restart_cleanup(mvm);
1268 }
1269
1270 /* we also want to load the firmware if fast_resume failed */
1271 if (!fast_resume || ret)
1272 ret = iwl_mvm_up(mvm);
1273
1274 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT,
1275 NULL);
1276 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC,
1277 NULL);
1278
1279 mvm->last_reset_or_resume_time_jiffies = jiffies;
1280
1281 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1282 /* Something went wrong - we need to finish some cleanup
1283 * that normally iwl_mvm_mac_restart_complete() below
1284 * would do.
1285 */
1286 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1287 }
1288
1289 return ret;
1290 }
1291
iwl_mvm_mac_start(struct ieee80211_hw * hw)1292 int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1293 {
1294 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1295 int ret;
1296
1297 mutex_lock(&mvm->mutex);
1298
1299 /* we are starting the mac not in error flow, and restart is enabled */
1300 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) &&
1301 iwlwifi_mod_params.fw_restart) {
1302 /*
1303 * This will prevent mac80211 recovery flows to trigger during
1304 * init failures
1305 */
1306 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1307 }
1308
1309 ret = __iwl_mvm_mac_start(mvm);
1310 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1311
1312 mutex_unlock(&mvm->mutex);
1313
1314 iwl_mvm_mei_set_sw_rfkill_state(mvm);
1315
1316 return ret;
1317 }
1318
iwl_mvm_restart_complete(struct iwl_mvm * mvm)1319 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1320 {
1321 int ret;
1322
1323 guard(mvm)(mvm);
1324
1325 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1326
1327 ret = iwl_mvm_update_quotas(mvm, true, NULL);
1328 if (ret)
1329 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1330 ret);
1331
1332 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY);
1333
1334 /*
1335 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1336 * of packets the FW sent out, so we must reconnect.
1337 */
1338 iwl_mvm_teardown_tdls_peers(mvm);
1339 }
1340
iwl_mvm_mac_reconfig_complete(struct ieee80211_hw * hw,enum ieee80211_reconfig_type reconfig_type)1341 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1342 enum ieee80211_reconfig_type reconfig_type)
1343 {
1344 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1345
1346 switch (reconfig_type) {
1347 case IEEE80211_RECONFIG_TYPE_RESTART:
1348 iwl_mvm_restart_complete(mvm);
1349 break;
1350 case IEEE80211_RECONFIG_TYPE_SUSPEND:
1351 break;
1352 }
1353 }
1354
__iwl_mvm_mac_stop(struct iwl_mvm * mvm,bool suspend)1355 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm, bool suspend)
1356 {
1357 lockdep_assert_held(&mvm->mutex);
1358
1359 iwl_mvm_ftm_initiator_smooth_stop(mvm);
1360
1361 /* firmware counters are obviously reset now, but we shouldn't
1362 * partially track so also clear the fw_reset_accu counters.
1363 */
1364 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1365
1366 /* async_handlers_wk is now blocked */
1367
1368 if (!iwl_mvm_has_new_station_api(mvm->fw))
1369 iwl_mvm_rm_aux_sta(mvm);
1370
1371 if (suspend &&
1372 mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
1373 iwl_mvm_fast_suspend(mvm);
1374 else
1375 iwl_mvm_stop_device(mvm);
1376
1377 iwl_mvm_async_handlers_purge(mvm);
1378 /* async_handlers_list is empty and will stay empty: HW is stopped */
1379
1380 /*
1381 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the
1382 * hw (as restart_complete() won't be called in this case) and mac80211
1383 * won't execute the restart.
1384 * But make sure to cleanup interfaces that have gone down before/during
1385 * HW restart was requested.
1386 */
1387 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) ||
1388 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1389 &mvm->status))
1390 ieee80211_iterate_interfaces(mvm->hw, 0,
1391 iwl_mvm_cleanup_iterator, mvm);
1392
1393 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1394 * make sure there's nothing left there and warn if any is found.
1395 */
1396 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1397 int i;
1398
1399 for (i = 0; i < mvm->max_scans; i++) {
1400 if (WARN_ONCE(mvm->scan_uid_status[i],
1401 "UMAC scan UID %d status was not cleaned\n",
1402 i))
1403 mvm->scan_uid_status[i] = 0;
1404 }
1405 }
1406 }
1407
iwl_mvm_mac_stop(struct ieee80211_hw * hw,bool suspend)1408 void iwl_mvm_mac_stop(struct ieee80211_hw *hw, bool suspend)
1409 {
1410 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1411
1412 /* Stop internal MLO scan, if running */
1413 mutex_lock(&mvm->mutex);
1414 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_INT_MLO, false);
1415 mutex_unlock(&mvm->mutex);
1416
1417 wiphy_work_cancel(mvm->hw->wiphy, &mvm->trig_link_selection_wk);
1418 wiphy_work_flush(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk);
1419 flush_work(&mvm->async_handlers_wk);
1420 flush_work(&mvm->add_stream_wk);
1421
1422 /*
1423 * Lock and clear the firmware running bit here already, so that
1424 * new commands coming in elsewhere, e.g. from debugfs, will not
1425 * be able to proceed. This is important here because one of those
1426 * debugfs files causes the firmware dump to be triggered, and if we
1427 * don't stop debugfs accesses before canceling that it could be
1428 * retriggered after we flush it but before we've cleared the bit.
1429 */
1430 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1431
1432 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
1433 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
1434
1435 /*
1436 * The work item could be running or queued if the
1437 * ROC time event stops just as we get here.
1438 */
1439 flush_work(&mvm->roc_done_wk);
1440
1441 iwl_mvm_mei_set_sw_rfkill_state(mvm);
1442
1443 mutex_lock(&mvm->mutex);
1444 __iwl_mvm_mac_stop(mvm, suspend);
1445 mutex_unlock(&mvm->mutex);
1446
1447 /*
1448 * The worker might have been waiting for the mutex, let it run and
1449 * discover that its list is now empty.
1450 */
1451 cancel_work_sync(&mvm->async_handlers_wk);
1452 wiphy_work_cancel(hw->wiphy, &mvm->async_handlers_wiphy_wk);
1453 }
1454
iwl_mvm_get_free_phy_ctxt(struct iwl_mvm * mvm)1455 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1456 {
1457 u16 i;
1458
1459 lockdep_assert_held(&mvm->mutex);
1460
1461 for (i = 0; i < NUM_PHY_CTX; i++)
1462 if (!mvm->phy_ctxts[i].ref)
1463 return &mvm->phy_ctxts[i];
1464
1465 IWL_ERR(mvm, "No available PHY context\n");
1466 return NULL;
1467 }
1468
iwl_mvm_set_tx_power(struct iwl_mvm * mvm,struct ieee80211_vif * vif,s16 tx_power)1469 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1470 s16 tx_power)
1471 {
1472 u32 cmd_id = REDUCE_TX_POWER_CMD;
1473 int len;
1474 struct iwl_dev_tx_power_cmd_v3_v8 cmd = {
1475 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1476 .common.mac_context_id =
1477 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1478 };
1479 struct iwl_dev_tx_power_cmd cmd_v9_v10;
1480 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 3);
1481 u16 u_tx_power = tx_power == IWL_DEFAULT_MAX_TX_POWER ?
1482 IWL_DEV_MAX_TX_POWER : 8 * tx_power;
1483 void *cmd_data = &cmd;
1484
1485 cmd.common.pwr_restriction = cpu_to_le16(u_tx_power);
1486
1487 if (cmd_ver > 8) {
1488 /* Those fields sit on the same place for v9 and v10 */
1489 cmd_v9_v10.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC);
1490 cmd_v9_v10.common.mac_context_id =
1491 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id);
1492 cmd_v9_v10.common.pwr_restriction = cpu_to_le16(u_tx_power);
1493 cmd_data = &cmd_v9_v10;
1494 }
1495
1496 if (cmd_ver == 10)
1497 len = sizeof(cmd_v9_v10.v10);
1498 else if (cmd_ver == 9)
1499 len = sizeof(cmd_v9_v10.v9);
1500 else if (cmd_ver == 8)
1501 len = sizeof(cmd.v8);
1502 else if (cmd_ver == 7)
1503 len = sizeof(cmd.v7);
1504 else if (cmd_ver == 6)
1505 len = sizeof(cmd.v6);
1506 else if (fw_has_api(&mvm->fw->ucode_capa,
1507 IWL_UCODE_TLV_API_REDUCE_TX_POWER))
1508 len = sizeof(cmd.v5);
1509 else if (fw_has_capa(&mvm->fw->ucode_capa,
1510 IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1511 len = sizeof(cmd.v4);
1512 else
1513 len = sizeof(cmd.v3);
1514
1515 /* all structs have the same common part, add its length */
1516 len += sizeof(cmd.common);
1517
1518 if (cmd_ver < 9)
1519 len += sizeof(cmd.per_band);
1520
1521 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, cmd_data);
1522
1523 }
1524
iwl_mvm_post_csa_tx(void * data,struct ieee80211_sta * sta)1525 static void iwl_mvm_post_csa_tx(void *data, struct ieee80211_sta *sta)
1526 {
1527 struct ieee80211_hw *hw = data;
1528 int i;
1529
1530 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {
1531 struct iwl_mvm_txq *mvmtxq =
1532 iwl_mvm_txq_from_mac80211(sta->txq[i]);
1533
1534 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);
1535 iwl_mvm_mac_itxq_xmit(hw, sta->txq[i]);
1536 }
1537 }
1538
iwl_mvm_post_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1539 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
1540 struct ieee80211_vif *vif,
1541 struct ieee80211_bss_conf *link_conf)
1542 {
1543 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1544 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1545 int ret;
1546
1547 mutex_lock(&mvm->mutex);
1548
1549 if (vif->type == NL80211_IFTYPE_STATION) {
1550 struct iwl_mvm_sta *mvmsta;
1551 unsigned int link_id = link_conf->link_id;
1552 u8 ap_sta_id = mvmvif->link[link_id]->ap_sta_id;
1553
1554 mvmvif->csa_bcn_pending = false;
1555 mvmvif->csa_blocks_tx = false;
1556 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, ap_sta_id);
1557
1558 if (WARN_ON(!mvmsta)) {
1559 ret = -EIO;
1560 goto out_unlock;
1561 }
1562
1563 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
1564 if (mvm->mld_api_is_used)
1565 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false);
1566 else
1567 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1568
1569 if (!fw_has_capa(&mvm->fw->ucode_capa,
1570 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
1571 ret = iwl_mvm_enable_beacon_filter(mvm, vif);
1572 if (ret)
1573 goto out_unlock;
1574
1575 iwl_mvm_stop_session_protection(mvm, vif);
1576 }
1577 } else if (vif->type == NL80211_IFTYPE_AP && mvmvif->csa_blocks_tx) {
1578 struct iwl_mvm_txq *mvmtxq =
1579 iwl_mvm_txq_from_mac80211(vif->txq);
1580
1581 clear_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);
1582
1583 local_bh_disable();
1584 iwl_mvm_mac_itxq_xmit(hw, vif->txq);
1585 ieee80211_iterate_stations_atomic(hw, iwl_mvm_post_csa_tx, hw);
1586 local_bh_enable();
1587
1588 mvmvif->csa_blocks_tx = false;
1589 }
1590
1591 mvmvif->ps_disabled = false;
1592
1593 ret = iwl_mvm_power_update_ps(mvm);
1594
1595 out_unlock:
1596 if (mvmvif->csa_failed)
1597 ret = -EIO;
1598 mutex_unlock(&mvm->mutex);
1599
1600 return ret;
1601 }
1602
iwl_mvm_abort_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)1603 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw,
1604 struct ieee80211_vif *vif,
1605 struct ieee80211_bss_conf *link_conf)
1606 {
1607 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1608 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1609 struct iwl_chan_switch_te_cmd cmd = {
1610 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
1611 mvmvif->color)),
1612 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),
1613 };
1614
1615 /*
1616 * In the new flow since FW is in charge of the timing,
1617 * if driver has canceled the channel switch he will receive the
1618 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it
1619 */
1620 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
1621 CHANNEL_SWITCH_ERROR_NOTIF, 0))
1622 return;
1623
1624 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id);
1625
1626 mutex_lock(&mvm->mutex);
1627 if (!fw_has_capa(&mvm->fw->ucode_capa,
1628 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
1629 iwl_mvm_remove_csa_period(mvm, vif);
1630 else
1631 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
1632 WIDE_ID(MAC_CONF_GROUP,
1633 CHANNEL_SWITCH_TIME_EVENT_CMD),
1634 0, sizeof(cmd), &cmd));
1635 mvmvif->csa_failed = true;
1636 mutex_unlock(&mvm->mutex);
1637
1638 /* If we're here, we can't support MLD */
1639 iwl_mvm_post_channel_switch(hw, vif, &vif->bss_conf);
1640 }
1641
iwl_mvm_channel_switch_disconnect_wk(struct work_struct * wk)1642 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk)
1643 {
1644 struct iwl_mvm_vif *mvmvif;
1645 struct ieee80211_vif *vif;
1646
1647 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work);
1648 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1649
1650 /* Trigger disconnect (should clear the CSA state) */
1651 ieee80211_chswitch_done(vif, false, 0);
1652 }
1653
1654 static u8
iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def * chandef)1655 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef)
1656 {
1657 int data_start;
1658 int control_start;
1659 int bw;
1660
1661 if (chandef->width == NL80211_CHAN_WIDTH_320)
1662 bw = 320;
1663 else if (chandef->width == NL80211_CHAN_WIDTH_160)
1664 bw = 160;
1665 else
1666 return 0;
1667
1668 /* data is bw wide so the start is half the width */
1669 data_start = chandef->center_freq1 - bw / 2;
1670 /* control is 20Mhz width */
1671 control_start = chandef->chan->center_freq - 10;
1672
1673 return (control_start - data_start) / 80;
1674 }
1675
iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1676 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm,
1677 struct ieee80211_vif *vif)
1678 {
1679 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1680 int ret;
1681
1682 lockdep_assert_held(&mvm->mutex);
1683
1684 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1685 if (ret) {
1686 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1687 return ret;
1688 }
1689
1690 /* Only queue for this station is the mcast queue,
1691 * which shouldn't be in TFD mask anyway
1692 */
1693 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0,
1694 vif->type,
1695 IWL_STA_MULTICAST);
1696 }
1697
iwl_mvm_prevent_esr_done_wk(struct wiphy * wiphy,struct wiphy_work * wk)1698 static void iwl_mvm_prevent_esr_done_wk(struct wiphy *wiphy,
1699 struct wiphy_work *wk)
1700 {
1701 struct iwl_mvm_vif *mvmvif =
1702 container_of(wk, struct iwl_mvm_vif, prevent_esr_done_wk.work);
1703 struct iwl_mvm *mvm = mvmvif->mvm;
1704 struct ieee80211_vif *vif =
1705 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1706
1707 guard(mvm)(mvm);
1708 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_PREVENTION);
1709 }
1710
iwl_mvm_mlo_int_scan_wk(struct wiphy * wiphy,struct wiphy_work * wk)1711 static void iwl_mvm_mlo_int_scan_wk(struct wiphy *wiphy, struct wiphy_work *wk)
1712 {
1713 struct iwl_mvm_vif *mvmvif = container_of(wk, struct iwl_mvm_vif,
1714 mlo_int_scan_wk.work);
1715 struct ieee80211_vif *vif =
1716 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1717
1718 guard(mvm)(mvmvif->mvm);
1719 iwl_mvm_int_mlo_scan(mvmvif->mvm, vif);
1720 }
1721
iwl_mvm_unblock_esr_tpt(struct wiphy * wiphy,struct wiphy_work * wk)1722 static void iwl_mvm_unblock_esr_tpt(struct wiphy *wiphy, struct wiphy_work *wk)
1723 {
1724 struct iwl_mvm_vif *mvmvif =
1725 container_of(wk, struct iwl_mvm_vif, unblock_esr_tpt_wk);
1726 struct iwl_mvm *mvm = mvmvif->mvm;
1727 struct ieee80211_vif *vif =
1728 container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1729
1730 guard(mvm)(mvm);
1731 iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT);
1732 }
1733
iwl_mvm_mac_init_mvmvif(struct iwl_mvm * mvm,struct iwl_mvm_vif * mvmvif)1734 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif)
1735 {
1736 lockdep_assert_held(&mvm->mutex);
1737
1738 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1739 return;
1740
1741 INIT_DELAYED_WORK(&mvmvif->csa_work,
1742 iwl_mvm_channel_switch_disconnect_wk);
1743
1744 wiphy_delayed_work_init(&mvmvif->prevent_esr_done_wk,
1745 iwl_mvm_prevent_esr_done_wk);
1746
1747 wiphy_delayed_work_init(&mvmvif->mlo_int_scan_wk,
1748 iwl_mvm_mlo_int_scan_wk);
1749
1750 wiphy_work_init(&mvmvif->unblock_esr_tpt_wk,
1751 iwl_mvm_unblock_esr_tpt);
1752 }
1753
iwl_mvm_mac_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1754 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1755 struct ieee80211_vif *vif)
1756 {
1757 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1758 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1759 int ret;
1760 int i;
1761
1762 mutex_lock(&mvm->mutex);
1763
1764 iwl_mvm_mac_init_mvmvif(mvm, mvmvif);
1765
1766 mvmvif->mvm = mvm;
1767
1768 /* the first link always points to the default one */
1769 mvmvif->deflink.fw_link_id = IWL_MVM_FW_LINK_ID_INVALID;
1770 mvmvif->deflink.active = 0;
1771 mvmvif->link[0] = &mvmvif->deflink;
1772
1773 ret = iwl_mvm_set_link_mapping(mvm, vif, &vif->bss_conf);
1774 if (ret)
1775 goto out;
1776
1777 /*
1778 * Not much to do here. The stack will not allow interface
1779 * types or combinations that we didn't advertise, so we
1780 * don't really have to check the types.
1781 */
1782
1783 /* make sure that beacon statistics don't go backwards with FW reset */
1784 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1785 for_each_mvm_vif_valid_link(mvmvif, i)
1786 mvmvif->link[i]->beacon_stats.accu_num_beacons +=
1787 mvmvif->link[i]->beacon_stats.num_beacons;
1788
1789 /* Allocate resources for the MAC context, and add it to the fw */
1790 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1791 if (ret)
1792 goto out;
1793
1794 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif);
1795
1796 /* Currently not much to do for NAN */
1797 if (vif->type == NL80211_IFTYPE_NAN) {
1798 ret = 0;
1799 goto out;
1800 }
1801
1802 /*
1803 * The AP binding flow can be done only after the beacon
1804 * template is configured (which happens only in the mac80211
1805 * start_ap() flow), and adding the broadcast station can happen
1806 * only after the binding.
1807 * In addition, since modifying the MAC before adding a bcast
1808 * station is not allowed by the FW, delay the adding of MAC context to
1809 * the point where we can also add the bcast station.
1810 * In short: there's not much we can do at this point, other than
1811 * allocating resources :)
1812 */
1813 if (vif->type == NL80211_IFTYPE_AP ||
1814 vif->type == NL80211_IFTYPE_ADHOC) {
1815 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1816 iwl_mvm_vif_dbgfs_add_link(mvm, vif);
1817 ret = 0;
1818 goto out;
1819 }
1820
1821 mvmvif->features |= hw->netdev_features;
1822
1823 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1824 if (ret)
1825 goto out_unlock;
1826
1827 ret = iwl_mvm_power_update_mac(mvm);
1828 if (ret)
1829 goto out_remove_mac;
1830
1831 /* beacon filtering */
1832 ret = iwl_mvm_disable_beacon_filter(mvm, vif);
1833 if (ret)
1834 goto out_remove_mac;
1835
1836 if (!mvm->bf_allowed_vif &&
1837 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1838 mvm->bf_allowed_vif = mvmvif;
1839 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1840 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1841 }
1842
1843 if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
1844 mvm->p2p_device_vif = vif;
1845
1846 iwl_mvm_tcm_add_vif(mvm, vif);
1847
1848 if (vif->type == NL80211_IFTYPE_MONITOR) {
1849 mvm->monitor_on = true;
1850 mvm->monitor_p80 =
1851 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chanreq.oper);
1852 }
1853
1854 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1855 iwl_mvm_vif_dbgfs_add_link(mvm, vif);
1856
1857 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
1858 vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1859 !mvm->csme_vif && mvm->mei_registered) {
1860 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr);
1861 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev);
1862 mvm->csme_vif = vif;
1863 }
1864
1865 out:
1866 if (!ret && (vif->type == NL80211_IFTYPE_AP ||
1867 vif->type == NL80211_IFTYPE_ADHOC))
1868 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif);
1869
1870 goto out_unlock;
1871
1872 out_remove_mac:
1873 mvmvif->deflink.phy_ctxt = NULL;
1874 iwl_mvm_mac_ctxt_remove(mvm, vif);
1875 out_unlock:
1876 mutex_unlock(&mvm->mutex);
1877
1878 return ret;
1879 }
1880
iwl_mvm_prepare_mac_removal(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1881 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1882 struct ieee80211_vif *vif)
1883 {
1884 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1885
1886 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1887 /*
1888 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1889 * We assume here that all the packets sent to the OFFCHANNEL
1890 * queue are sent in ROC session.
1891 */
1892 flush_work(&mvm->roc_done_wk);
1893 }
1894
1895 wiphy_delayed_work_cancel(mvm->hw->wiphy,
1896 &mvmvif->prevent_esr_done_wk);
1897
1898 wiphy_delayed_work_cancel(mvm->hw->wiphy,
1899 &mvmvif->mlo_int_scan_wk);
1900
1901 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk);
1902
1903 cancel_delayed_work_sync(&mvmvif->csa_work);
1904 }
1905
iwl_mvm_mac_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1906 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1907 struct ieee80211_vif *vif)
1908 {
1909 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1910 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1911 struct iwl_probe_resp_data *probe_data;
1912
1913 iwl_mvm_prepare_mac_removal(mvm, vif);
1914
1915 if (!(vif->type == NL80211_IFTYPE_AP ||
1916 vif->type == NL80211_IFTYPE_ADHOC))
1917 iwl_mvm_tcm_rm_vif(mvm, vif);
1918
1919 mutex_lock(&mvm->mutex);
1920
1921 if (vif == mvm->csme_vif) {
1922 iwl_mei_set_netdev(NULL);
1923 mvm->csme_vif = NULL;
1924 }
1925
1926 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,
1927 lockdep_is_held(&mvm->mutex));
1928 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);
1929 if (probe_data)
1930 kfree_rcu(probe_data, rcu_head);
1931
1932 if (mvm->bf_allowed_vif == mvmvif) {
1933 mvm->bf_allowed_vif = NULL;
1934 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1935 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1936 }
1937
1938 if (vif->bss_conf.ftm_responder)
1939 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats));
1940
1941 iwl_mvm_vif_dbgfs_rm_link(mvm, vif);
1942
1943 /*
1944 * For AP/GO interface, the tear down of the resources allocated to the
1945 * interface is be handled as part of the stop_ap flow.
1946 */
1947 if (vif->type == NL80211_IFTYPE_AP ||
1948 vif->type == NL80211_IFTYPE_ADHOC) {
1949 #ifdef CONFIG_NL80211_TESTMODE
1950 if (vif == mvm->noa_vif) {
1951 mvm->noa_vif = NULL;
1952 mvm->noa_duration = 0;
1953 }
1954 #endif
1955 goto out;
1956 }
1957
1958 iwl_mvm_power_update_mac(mvm);
1959
1960 /* Before the interface removal, mac80211 would cancel the ROC, and the
1961 * ROC worker would be scheduled if needed. The worker would be flushed
1962 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no
1963 * binding etc. so nothing needs to be done here.
1964 */
1965 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1966 if (mvmvif->deflink.phy_ctxt) {
1967 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);
1968 mvmvif->deflink.phy_ctxt = NULL;
1969 }
1970 mvm->p2p_device_vif = NULL;
1971 }
1972
1973 iwl_mvm_unset_link_mapping(mvm, vif, &vif->bss_conf);
1974 iwl_mvm_mac_ctxt_remove(mvm, vif);
1975
1976 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL);
1977
1978 if (vif->type == NL80211_IFTYPE_MONITOR)
1979 mvm->monitor_on = false;
1980
1981 out:
1982 if (vif->type == NL80211_IFTYPE_AP ||
1983 vif->type == NL80211_IFTYPE_ADHOC) {
1984 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta);
1985 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1986 }
1987
1988 mutex_unlock(&mvm->mutex);
1989 }
1990
1991 struct iwl_mvm_mc_iter_data {
1992 struct iwl_mvm *mvm;
1993 int port_id;
1994 };
1995
iwl_mvm_mc_iface_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)1996 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1997 struct ieee80211_vif *vif)
1998 {
1999 struct iwl_mvm_mc_iter_data *data = _data;
2000 struct iwl_mvm *mvm = data->mvm;
2001 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
2002 struct iwl_host_cmd hcmd = {
2003 .id = MCAST_FILTER_CMD,
2004 .flags = CMD_ASYNC,
2005 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
2006 };
2007 int ret, len;
2008
2009 /* if we don't have free ports, mcast frames will be dropped */
2010 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
2011 return;
2012
2013 if (vif->type != NL80211_IFTYPE_STATION ||
2014 !vif->cfg.assoc)
2015 return;
2016
2017 cmd->port_id = data->port_id++;
2018 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
2019 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
2020
2021 hcmd.len[0] = len;
2022 hcmd.data[0] = cmd;
2023
2024 ret = iwl_mvm_send_cmd(mvm, &hcmd);
2025 if (ret)
2026 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
2027 }
2028
iwl_mvm_recalc_multicast(struct iwl_mvm * mvm)2029 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
2030 {
2031 struct iwl_mvm_mc_iter_data iter_data = {
2032 .mvm = mvm,
2033 };
2034 int ret;
2035
2036 lockdep_assert_held(&mvm->mutex);
2037
2038 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
2039 return;
2040
2041 ieee80211_iterate_active_interfaces_atomic(
2042 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2043 iwl_mvm_mc_iface_iterator, &iter_data);
2044
2045 /*
2046 * Send a (synchronous) ech command so that we wait for the
2047 * multiple asynchronous MCAST_FILTER_CMD commands sent by
2048 * the interface iterator. Otherwise, we might get here over
2049 * and over again (by userspace just sending a lot of these)
2050 * and the CPU can send them faster than the firmware can
2051 * process them.
2052 * Note that the CPU is still faster - but with this we'll
2053 * actually send fewer commands overall because the CPU will
2054 * not schedule the work in mac80211 as frequently if it's
2055 * still running when rescheduled (possibly multiple times).
2056 */
2057 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
2058 if (ret)
2059 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n");
2060 }
2061
iwl_mvm_prepare_multicast(struct ieee80211_hw * hw,struct netdev_hw_addr_list * mc_list)2062 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
2063 struct netdev_hw_addr_list *mc_list)
2064 {
2065 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2066 struct iwl_mcast_filter_cmd *cmd;
2067 struct netdev_hw_addr *addr;
2068 int addr_count;
2069 bool pass_all;
2070 int len;
2071
2072 addr_count = netdev_hw_addr_list_count(mc_list);
2073 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
2074 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
2075 if (pass_all)
2076 addr_count = 0;
2077
2078 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
2079 cmd = kzalloc(len, GFP_ATOMIC);
2080 if (!cmd)
2081 return 0;
2082
2083 if (pass_all) {
2084 cmd->pass_all = 1;
2085 return (u64)(unsigned long)cmd;
2086 }
2087
2088 netdev_hw_addr_list_for_each(addr, mc_list) {
2089 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
2090 cmd->count, addr->addr);
2091 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
2092 addr->addr, ETH_ALEN);
2093 cmd->count++;
2094 }
2095
2096 return (u64)(unsigned long)cmd;
2097 }
2098
iwl_mvm_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)2099 void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
2100 unsigned int changed_flags,
2101 unsigned int *total_flags, u64 multicast)
2102 {
2103 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2104 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
2105
2106 guard(mvm)(mvm);
2107
2108 /* replace previous configuration */
2109 kfree(mvm->mcast_filter_cmd);
2110 mvm->mcast_filter_cmd = cmd;
2111
2112 if (!cmd)
2113 goto out;
2114
2115 if (changed_flags & FIF_ALLMULTI)
2116 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
2117
2118 if (cmd->pass_all)
2119 cmd->count = 0;
2120
2121 iwl_mvm_recalc_multicast(mvm);
2122 out:
2123 *total_flags = 0;
2124 }
2125
iwl_mvm_config_iface_filter(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int filter_flags,unsigned int changed_flags)2126 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
2127 struct ieee80211_vif *vif,
2128 unsigned int filter_flags,
2129 unsigned int changed_flags)
2130 {
2131 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2132
2133 /* We support only filter for probe requests */
2134 if (!(changed_flags & FIF_PROBE_REQ))
2135 return;
2136
2137 /* Supported only for p2p client interfaces */
2138 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc ||
2139 !vif->p2p)
2140 return;
2141
2142 guard(mvm)(mvm);
2143 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2144 }
2145
iwl_mvm_update_mu_groups(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2146 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2147 {
2148 struct iwl_mu_group_mgmt_cmd cmd = {};
2149
2150 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
2151 WLAN_MEMBERSHIP_LEN);
2152 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
2153 WLAN_USER_POSITION_LEN);
2154
2155 return iwl_mvm_send_cmd_pdu(mvm,
2156 WIDE_ID(DATA_PATH_GROUP,
2157 UPDATE_MU_GROUPS_CMD),
2158 0, sizeof(cmd), &cmd);
2159 }
2160
iwl_mvm_mu_mimo_iface_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)2161 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
2162 struct ieee80211_vif *vif)
2163 {
2164 if (vif->bss_conf.mu_mimo_owner) {
2165 struct iwl_mu_group_mgmt_notif *notif = _data;
2166
2167 /*
2168 * MU-MIMO Group Id action frame is little endian. We treat
2169 * the data received from firmware as if it came from the
2170 * action frame, so no conversion is needed.
2171 */
2172 ieee80211_update_mu_groups(vif, 0,
2173 (u8 *)¬if->membership_status,
2174 (u8 *)¬if->user_position);
2175 }
2176 }
2177
iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)2178 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
2179 struct iwl_rx_cmd_buffer *rxb)
2180 {
2181 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2182 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
2183
2184 ieee80211_iterate_active_interfaces_atomic(
2185 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2186 iwl_mvm_mu_mimo_iface_iterator, notif);
2187 }
2188
iwl_mvm_he_get_ppe_val(u8 * ppe,u8 ppe_pos_bit)2189 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit)
2190 {
2191 u8 byte_num = ppe_pos_bit / 8;
2192 u8 bit_num = ppe_pos_bit % 8;
2193 u8 residue_bits;
2194 u8 res;
2195
2196 if (bit_num <= 5)
2197 return (ppe[byte_num] >> bit_num) &
2198 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1);
2199
2200 /*
2201 * If bit_num > 5, we have to combine bits with next byte.
2202 * Calculate how many bits we need to take from current byte (called
2203 * here "residue_bits"), and add them to bits from next byte.
2204 */
2205
2206 residue_bits = 8 - bit_num;
2207
2208 res = (ppe[byte_num + 1] &
2209 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) <<
2210 residue_bits;
2211 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1);
2212
2213 return res;
2214 }
2215
iwl_mvm_parse_ppe(struct iwl_mvm * mvm,struct iwl_he_pkt_ext_v2 * pkt_ext,u8 nss,u8 ru_index_bitmap,u8 * ppe,u8 ppe_pos_bit,bool inheritance)2216 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm,
2217 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss,
2218 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit,
2219 bool inheritance)
2220 {
2221 int i;
2222
2223 /*
2224 * FW currently supports only nss == MAX_HE_SUPP_NSS
2225 *
2226 * If nss > MAX: we can ignore values we don't support
2227 * If nss < MAX: we can set zeros in other streams
2228 */
2229 if (nss > MAX_HE_SUPP_NSS) {
2230 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,
2231 MAX_HE_SUPP_NSS);
2232 nss = MAX_HE_SUPP_NSS;
2233 }
2234
2235 for (i = 0; i < nss; i++) {
2236 u8 ru_index_tmp = ru_index_bitmap << 1;
2237 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE;
2238 u8 bw;
2239
2240 for (bw = 0;
2241 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2242 bw++) {
2243 ru_index_tmp >>= 1;
2244
2245 /*
2246 * According to the 11be spec, if for a specific BW the PPE Thresholds
2247 * isn't present - it should inherit the thresholds from the last
2248 * BW for which we had PPE Thresholds. In 11ax though, we don't have
2249 * this inheritance - continue in this case
2250 */
2251 if (!(ru_index_tmp & 1)) {
2252 if (inheritance)
2253 goto set_thresholds;
2254 else
2255 continue;
2256 }
2257
2258 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
2259 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2260 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
2261 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2262
2263 set_thresholds:
2264 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
2265 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
2266 }
2267 }
2268 }
2269
iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm * mvm,struct ieee80211_link_sta * link_sta,struct iwl_he_pkt_ext_v2 * pkt_ext,bool inheritance)2270 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm,
2271 struct ieee80211_link_sta *link_sta,
2272 struct iwl_he_pkt_ext_v2 *pkt_ext,
2273 bool inheritance)
2274 {
2275 u8 nss = (link_sta->he_cap.ppe_thres[0] &
2276 IEEE80211_PPE_THRES_NSS_MASK) + 1;
2277 u8 *ppe = &link_sta->he_cap.ppe_thres[0];
2278 u8 ru_index_bitmap =
2279 u8_get_bits(*ppe,
2280 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
2281 /* Starting after PPE header */
2282 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE;
2283
2284 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit,
2285 inheritance);
2286 }
2287
2288 static int
iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 * pkt_ext,u8 nominal_padding)2289 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext,
2290 u8 nominal_padding)
2291 {
2292 int low_th = -1;
2293 int high_th = -1;
2294 int i;
2295
2296 /* all the macros are the same for EHT and HE */
2297 switch (nominal_padding) {
2298 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US:
2299 low_th = IWL_HE_PKT_EXT_NONE;
2300 high_th = IWL_HE_PKT_EXT_NONE;
2301 break;
2302 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US:
2303 low_th = IWL_HE_PKT_EXT_BPSK;
2304 high_th = IWL_HE_PKT_EXT_NONE;
2305 break;
2306 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US:
2307 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US:
2308 low_th = IWL_HE_PKT_EXT_NONE;
2309 high_th = IWL_HE_PKT_EXT_BPSK;
2310 break;
2311 }
2312
2313 if (low_th < 0 || high_th < 0)
2314 return -EINVAL;
2315
2316 /* Set the PPE thresholds accordingly */
2317 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2318 u8 bw;
2319
2320 for (bw = 0;
2321 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2322 bw++) {
2323 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
2324 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
2325 }
2326 }
2327
2328 return 0;
2329 }
2330
iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 * pkt_ext,u8 nominal_padding)2331 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext,
2332 u8 nominal_padding)
2333 {
2334 int i;
2335
2336 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2337 u8 bw;
2338
2339 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2340 bw++) {
2341 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0];
2342
2343 if (nominal_padding >
2344 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&
2345 qam_th[1] == IWL_HE_PKT_EXT_NONE)
2346 qam_th[1] = IWL_HE_PKT_EXT_4096QAM;
2347 else if (nominal_padding ==
2348 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&
2349 qam_th[0] == IWL_HE_PKT_EXT_NONE &&
2350 qam_th[1] == IWL_HE_PKT_EXT_NONE)
2351 qam_th[0] = IWL_HE_PKT_EXT_4096QAM;
2352 }
2353 }
2354 }
2355
2356 /* Set the pkt_ext field according to PPE Thresholds element */
iwl_mvm_set_sta_pkt_ext(struct iwl_mvm * mvm,struct ieee80211_link_sta * link_sta,struct iwl_he_pkt_ext_v2 * pkt_ext)2357 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm,
2358 struct ieee80211_link_sta *link_sta,
2359 struct iwl_he_pkt_ext_v2 *pkt_ext)
2360 {
2361 u8 nominal_padding;
2362 int i, ret = 0;
2363
2364 if (WARN_ON(!link_sta))
2365 return -EINVAL;
2366
2367 /* Initialize the PPE thresholds to "None" (7), as described in Table
2368 * 9-262ac of 80211.ax/D3.0.
2369 */
2370 memset(pkt_ext, IWL_HE_PKT_EXT_NONE,
2371 sizeof(struct iwl_he_pkt_ext_v2));
2372
2373 if (link_sta->eht_cap.has_eht) {
2374 nominal_padding =
2375 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5],
2376 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK);
2377
2378 /* If PPE Thresholds exists, parse them into a FW-familiar
2379 * format.
2380 */
2381 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] &
2382 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
2383 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] &
2384 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1;
2385 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0];
2386 u8 ru_index_bitmap =
2387 u16_get_bits(*ppe,
2388 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);
2389 /* Starting after PPE header */
2390 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;
2391
2392 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap,
2393 ppe, ppe_pos_bit, true);
2394 /* EHT PPE Thresholds doesn't exist - set the API according to
2395 * HE PPE Tresholds
2396 */
2397 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &
2398 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2399 /* Even though HE Capabilities IE doesn't contain PPE
2400 * Thresholds for BW 320Mhz, thresholds for this BW will
2401 * be filled in with the same values as 160Mhz, due to
2402 * the inheritance, as required.
2403 */
2404 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,
2405 true);
2406
2407 /* According to the requirements, for MCSs 12-13 the
2408 * maximum value between HE PPE Threshold and Common
2409 * Nominal Packet Padding needs to be taken
2410 */
2411 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding);
2412
2413 /* if PPE Thresholds doesn't present in both EHT IE and HE IE -
2414 * take the Thresholds from Common Nominal Packet Padding field
2415 */
2416 } else {
2417 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,
2418 nominal_padding);
2419 }
2420 } else if (link_sta->he_cap.has_he) {
2421 /* If PPE Thresholds exist, parse them into a FW-familiar format. */
2422 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &
2423 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2424 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,
2425 false);
2426 /* PPE Thresholds doesn't exist - set the API PPE values
2427 * according to Common Nominal Packet Padding field.
2428 */
2429 } else {
2430 nominal_padding =
2431 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9],
2432 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK);
2433 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED)
2434 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,
2435 nominal_padding);
2436 }
2437 }
2438
2439 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2440 int bw;
2441
2442 for (bw = 0;
2443 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]);
2444 bw++) {
2445 u8 *qam_th =
2446 &pkt_ext->pkt_ext_qam_th[i][bw][0];
2447
2448 IWL_DEBUG_HT(mvm,
2449 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n",
2450 i, bw, qam_th[0], qam_th[1]);
2451 }
2452 }
2453 return ret;
2454 }
2455
2456 /*
2457 * This function sets the MU EDCA parameters ans returns whether MU EDCA
2458 * is enabled or not
2459 */
iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm * mvm,const struct iwl_mvm_vif_link_info * link_info,struct iwl_he_backoff_conf * trig_based_txf)2460 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm,
2461 const struct iwl_mvm_vif_link_info *link_info,
2462 struct iwl_he_backoff_conf *trig_based_txf)
2463 {
2464 int i;
2465 /* Mark MU EDCA as enabled, unless none detected on some AC */
2466 bool mu_edca_enabled = true;
2467
2468 for (i = 0; i < IEEE80211_NUM_ACS; i++) {
2469 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca =
2470 &link_info->queue_params[i].mu_edca_param_rec;
2471 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i);
2472
2473 if (!link_info->queue_params[i].mu_edca) {
2474 mu_edca_enabled = false;
2475 break;
2476 }
2477
2478 trig_based_txf[ac].cwmin =
2479 cpu_to_le16(mu_edca->ecw_min_max & 0xf);
2480 trig_based_txf[ac].cwmax =
2481 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4);
2482 trig_based_txf[ac].aifsn =
2483 cpu_to_le16(mu_edca->aifsn & 0xf);
2484 trig_based_txf[ac].mu_time =
2485 cpu_to_le16(mu_edca->mu_edca_timer);
2486 }
2487
2488 return mu_edca_enabled;
2489 }
2490
iwl_mvm_is_nic_ack_enabled(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2491 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2492 {
2493 const struct ieee80211_supported_band *sband;
2494 const struct ieee80211_sta_he_cap *own_he_cap = NULL;
2495
2496 /* This capability is the same for all bands,
2497 * so take it from one of them.
2498 */
2499 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
2500 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
2501
2502 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] &
2503 IEEE80211_HE_MAC_CAP2_ACK_EN));
2504 }
2505
iwl_mvm_get_sta_htc_flags(struct ieee80211_sta * sta,struct ieee80211_link_sta * link_sta)2506 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta,
2507 struct ieee80211_link_sta *link_sta)
2508 {
2509 u8 *mac_cap_info =
2510 &link_sta->he_cap.he_cap_elem.mac_cap_info[0];
2511 __le32 htc_flags = 0;
2512
2513 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE)
2514 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT);
2515 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) ||
2516 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) {
2517 u8 link_adap =
2518 ((mac_cap_info[2] &
2519 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) +
2520 (mac_cap_info[1] &
2521 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION);
2522
2523 if (link_adap == 2)
2524 htc_flags |=
2525 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED);
2526 else if (link_adap == 3)
2527 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH);
2528 }
2529 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR)
2530 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP);
2531 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL)
2532 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP);
2533 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR)
2534 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP);
2535
2536 return htc_flags;
2537 }
2538
iwl_mvm_cfg_he_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u8 sta_id)2539 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm,
2540 struct ieee80211_vif *vif, u8 sta_id)
2541 {
2542 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2543 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = {
2544 .sta_id = sta_id,
2545 .tid_limit = IWL_MAX_TID_COUNT,
2546 .bss_color = vif->bss_conf.he_bss_color.color,
2547 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext,
2548 .frame_time_rts_th =
2549 cpu_to_le16(vif->bss_conf.frame_time_rts_th),
2550 };
2551 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {};
2552 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD);
2553 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2);
2554 int size;
2555 struct ieee80211_sta *sta;
2556 u32 flags;
2557 int i;
2558 void *cmd;
2559
2560 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE))
2561 ver = 1;
2562
2563 switch (ver) {
2564 case 1:
2565 /* same layout as v2 except some data at the end */
2566 cmd = &sta_ctxt_cmd_v2;
2567 size = sizeof(struct iwl_he_sta_context_cmd_v1);
2568 break;
2569 case 2:
2570 cmd = &sta_ctxt_cmd_v2;
2571 size = sizeof(struct iwl_he_sta_context_cmd_v2);
2572 break;
2573 case 3:
2574 cmd = &sta_ctxt_cmd;
2575 size = sizeof(struct iwl_he_sta_context_cmd_v3);
2576 break;
2577 default:
2578 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver);
2579 return;
2580 }
2581
2582 rcu_read_lock();
2583
2584 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]);
2585 if (IS_ERR_OR_NULL(sta)) {
2586 rcu_read_unlock();
2587 WARN(1, "Can't find STA to configure HE\n");
2588 return;
2589 }
2590
2591 if (!sta->deflink.he_cap.has_he) {
2592 rcu_read_unlock();
2593 return;
2594 }
2595
2596 flags = 0;
2597
2598 /* Block 26-tone RU OFDMA transmissions */
2599 if (mvmvif->deflink.he_ru_2mhz_block)
2600 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK;
2601
2602 /* HTC flags */
2603 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink);
2604
2605 /* PPE Thresholds */
2606 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext))
2607 flags |= STA_CTXT_HE_PACKET_EXT;
2608
2609 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2610 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP)
2611 flags |= STA_CTXT_HE_32BIT_BA_BITMAP;
2612
2613 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2614 IEEE80211_HE_MAC_CAP2_ACK_EN)
2615 flags |= STA_CTXT_HE_ACK_ENABLED;
2616
2617 rcu_read_unlock();
2618
2619 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink,
2620 &sta_ctxt_cmd.trig_based_txf[0]))
2621 flags |= STA_CTXT_HE_MU_EDCA_CW;
2622
2623 if (vif->bss_conf.uora_exists) {
2624 flags |= STA_CTXT_HE_TRIG_RND_ALLOC;
2625
2626 sta_ctxt_cmd.rand_alloc_ecwmin =
2627 vif->bss_conf.uora_ocw_range & 0x7;
2628 sta_ctxt_cmd.rand_alloc_ecwmax =
2629 (vif->bss_conf.uora_ocw_range >> 3) & 0x7;
2630 }
2631
2632 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif))
2633 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED;
2634
2635 if (vif->bss_conf.nontransmitted) {
2636 flags |= STA_CTXT_HE_REF_BSSID_VALID;
2637 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr,
2638 vif->bss_conf.transmitter_bssid);
2639 sta_ctxt_cmd.max_bssid_indicator =
2640 vif->bss_conf.bssid_indicator;
2641 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index;
2642 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap;
2643 sta_ctxt_cmd.profile_periodicity =
2644 vif->bss_conf.profile_periodicity;
2645 }
2646
2647 sta_ctxt_cmd.flags = cpu_to_le32(flags);
2648
2649 if (ver < 3) {
2650 /* fields before pkt_ext */
2651 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) !=
2652 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext));
2653 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd,
2654 offsetof(typeof(sta_ctxt_cmd), pkt_ext));
2655
2656 /* pkt_ext */
2657 for (i = 0;
2658 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th);
2659 i++) {
2660 u8 bw;
2661
2662 for (bw = 0;
2663 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]);
2664 bw++) {
2665 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) !=
2666 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw]));
2667
2668 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw],
2669 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw],
2670 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]));
2671 }
2672 }
2673
2674 /* fields after pkt_ext */
2675 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) -
2676 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) !=
2677 sizeof(sta_ctxt_cmd_v2) -
2678 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext));
2679 memcpy((u8 *)&sta_ctxt_cmd_v2 +
2680 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext),
2681 (u8 *)&sta_ctxt_cmd +
2682 offsetofend(typeof(sta_ctxt_cmd), pkt_ext),
2683 sizeof(sta_ctxt_cmd) -
2684 offsetofend(typeof(sta_ctxt_cmd), pkt_ext));
2685 sta_ctxt_cmd_v2.reserved3 = 0;
2686 }
2687
2688 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd))
2689 IWL_ERR(mvm, "Failed to config FW to work HE!\n");
2690 }
2691
iwl_mvm_protect_assoc(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u32 duration_override,unsigned int link_id)2692 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2693 u32 duration_override, unsigned int link_id)
2694 {
2695 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2696 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
2697
2698 if (duration_override > duration)
2699 duration = duration_override;
2700
2701 /* Try really hard to protect the session and hear a beacon
2702 * The new session protection command allows us to protect the
2703 * session for a much longer time since the firmware will internally
2704 * create two events: a 300TU one with a very high priority that
2705 * won't be fragmented which should be enough for 99% of the cases,
2706 * and another one (which we configure here to be 900TU long) which
2707 * will have a slightly lower priority, but more importantly, can be
2708 * fragmented so that it'll allow other activities to run.
2709 */
2710 if (fw_has_capa(&mvm->fw->ucode_capa,
2711 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD))
2712 iwl_mvm_schedule_session_protection(mvm, vif, 900,
2713 min_duration, false,
2714 link_id);
2715 else
2716 iwl_mvm_protect_session(mvm, vif, duration,
2717 min_duration, 500, false);
2718 }
2719
2720 /* Handle association common part to MLD and non-MLD modes */
iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u64 changes)2721 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm,
2722 struct ieee80211_vif *vif,
2723 u64 changes)
2724 {
2725 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2726 int ret;
2727 int link_id;
2728
2729 /* The firmware tracks the MU-MIMO group on its own.
2730 * However, on HW restart we should restore this data.
2731 */
2732 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2733 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) {
2734 ret = iwl_mvm_update_mu_groups(mvm, vif);
2735 if (ret)
2736 IWL_ERR(mvm,
2737 "failed to update VHT MU_MIMO groups\n");
2738 }
2739
2740 iwl_mvm_recalc_multicast(mvm);
2741
2742 /* reset rssi values */
2743 for_each_mvm_vif_valid_link(mvmvif, link_id)
2744 mvmvif->link[link_id]->bf_data.ave_beacon_signal = 0;
2745
2746 iwl_mvm_bt_coex_vif_change(mvm);
2747 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2748 IEEE80211_SMPS_AUTOMATIC);
2749 if (fw_has_capa(&mvm->fw->ucode_capa,
2750 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2751 iwl_mvm_config_scan(mvm);
2752 }
2753
2754 /* Execute the common part for MLD and non-MLD modes */
2755 void
iwl_mvm_bss_info_changed_station_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,u64 changes)2756 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm,
2757 struct ieee80211_vif *vif,
2758 struct ieee80211_bss_conf *link_conf,
2759 u64 changes)
2760 {
2761 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2762 int ret;
2763
2764 if (changes & BSS_CHANGED_BEACON_INFO) {
2765 /* We received a beacon from the associated AP so
2766 * remove the session protection.
2767 */
2768 iwl_mvm_stop_session_protection(mvm, vif);
2769
2770 iwl_mvm_sf_update(mvm, vif, false);
2771 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif));
2772 }
2773
2774 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2775 /* Send power command on every beacon change,
2776 * because we may have not enabled beacon abort yet.
2777 */
2778 BSS_CHANGED_BEACON_INFO)) {
2779 ret = iwl_mvm_power_update_mac(mvm);
2780 if (ret)
2781 IWL_ERR(mvm, "failed to update power mode\n");
2782 }
2783
2784 if (changes & BSS_CHANGED_CQM) {
2785 struct iwl_mvm_vif_link_info *link_info =
2786 mvmvif->link[link_conf->link_id];
2787
2788 IWL_DEBUG_MAC80211(mvm, "CQM info_changed\n");
2789 if (link_info)
2790 link_info->bf_data.last_cqm_event = 0;
2791
2792 if (mvmvif->bf_enabled) {
2793 /* FIXME: need to update per link when FW API will
2794 * support it
2795 */
2796 ret = iwl_mvm_enable_beacon_filter(mvm, vif);
2797 if (ret)
2798 IWL_ERR(mvm,
2799 "failed to update CQM thresholds\n");
2800 }
2801 }
2802
2803 if (changes & BSS_CHANGED_BANDWIDTH)
2804 iwl_mvm_update_link_smps(vif, link_conf);
2805
2806 if (changes & BSS_CHANGED_TPE) {
2807 IWL_DEBUG_CALIB(mvm, "Changing TPE\n");
2808 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif,
2809 link_conf,
2810 false);
2811 }
2812 }
2813
iwl_mvm_bss_info_changed_station(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf,u64 changes)2814 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2815 struct ieee80211_vif *vif,
2816 struct ieee80211_bss_conf *bss_conf,
2817 u64 changes)
2818 {
2819 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2820 int ret;
2821 int i;
2822
2823 /*
2824 * Re-calculate the tsf id, as the leader-follower relations depend
2825 * on the beacon interval, which was not known when the station
2826 * interface was added.
2827 */
2828 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) {
2829 if ((vif->bss_conf.he_support &&
2830 !iwlwifi_mod_params.disable_11ax))
2831 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);
2832
2833 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2834 }
2835
2836 /* Update MU EDCA params */
2837 if (changes & BSS_CHANGED_QOS && mvmvif->associated &&
2838 vif->cfg.assoc &&
2839 (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax))
2840 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);
2841
2842 /*
2843 * If we're not associated yet, take the (new) BSSID before associating
2844 * so the firmware knows. If we're already associated, then use the old
2845 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2846 * branch for disassociation below.
2847 */
2848 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2849 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);
2850
2851 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid);
2852 if (ret)
2853 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2854
2855 /* after sending it once, adopt mac80211 data */
2856 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);
2857 mvmvif->associated = vif->cfg.assoc;
2858
2859 if (changes & BSS_CHANGED_ASSOC) {
2860 if (vif->cfg.assoc) {
2861 mvmvif->session_prot_connection_loss = false;
2862
2863 /* clear statistics to get clean beacon counter */
2864 iwl_mvm_request_statistics(mvm, true);
2865 for_each_mvm_vif_valid_link(mvmvif, i)
2866 memset(&mvmvif->link[i]->beacon_stats, 0,
2867 sizeof(mvmvif->link[i]->beacon_stats));
2868
2869 /* add quota for this interface */
2870 ret = iwl_mvm_update_quotas(mvm, true, NULL);
2871 if (ret) {
2872 IWL_ERR(mvm, "failed to update quotas\n");
2873 return;
2874 }
2875
2876 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2877 &mvm->status) &&
2878 !fw_has_capa(&mvm->fw->ucode_capa,
2879 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {
2880 /*
2881 * If we're restarting then the firmware will
2882 * obviously have lost synchronisation with
2883 * the AP. It will attempt to synchronise by
2884 * itself, but we can make it more reliable by
2885 * scheduling a session protection time event.
2886 *
2887 * The firmware needs to receive a beacon to
2888 * catch up with synchronisation, use 110% of
2889 * the beacon interval.
2890 *
2891 * Set a large maximum delay to allow for more
2892 * than a single interface.
2893 *
2894 * For new firmware versions, rely on the
2895 * firmware. This is relevant for DCM scenarios
2896 * only anyway.
2897 */
2898 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2899 iwl_mvm_protect_session(mvm, vif, dur, dur,
2900 5 * dur, false);
2901 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2902 &mvm->status) &&
2903 !vif->bss_conf.dtim_period) {
2904 /*
2905 * If we're not restarting and still haven't
2906 * heard a beacon (dtim period unknown) then
2907 * make sure we still have enough minimum time
2908 * remaining in the time event, since the auth
2909 * might actually have taken quite a while
2910 * (especially for SAE) and so the remaining
2911 * time could be small without us having heard
2912 * a beacon yet.
2913 */
2914 iwl_mvm_protect_assoc(mvm, vif, 0, 0);
2915 }
2916
2917 iwl_mvm_sf_update(mvm, vif, false);
2918 iwl_mvm_power_vif_assoc(mvm, vif);
2919 if (vif->p2p) {
2920 iwl_mvm_update_smps(mvm, vif,
2921 IWL_MVM_SMPS_REQ_PROT,
2922 IEEE80211_SMPS_DYNAMIC, 0);
2923 }
2924 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) {
2925 iwl_mvm_mei_host_disassociated(mvm);
2926 /*
2927 * If update fails - SF might be running in associated
2928 * mode while disassociated - which is forbidden.
2929 */
2930 ret = iwl_mvm_sf_update(mvm, vif, false);
2931 WARN_ONCE(ret &&
2932 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
2933 &mvm->status),
2934 "Failed to update SF upon disassociation\n");
2935
2936 /*
2937 * If we get an assert during the connection (after the
2938 * station has been added, but before the vif is set
2939 * to associated), mac80211 will re-add the station and
2940 * then configure the vif. Since the vif is not
2941 * associated, we would remove the station here and
2942 * this would fail the recovery.
2943 */
2944 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2945 &mvm->status)) {
2946 /* first remove remaining keys */
2947 iwl_mvm_sec_key_remove_ap(mvm, vif,
2948 &mvmvif->deflink, 0);
2949
2950 /*
2951 * Remove AP station now that
2952 * the MAC is unassoc
2953 */
2954 ret = iwl_mvm_rm_sta_id(mvm, vif,
2955 mvmvif->deflink.ap_sta_id);
2956 if (ret)
2957 IWL_ERR(mvm,
2958 "failed to remove AP station\n");
2959
2960 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA;
2961 }
2962
2963 /* remove quota for this interface */
2964 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2965 if (ret)
2966 IWL_ERR(mvm, "failed to update quotas\n");
2967
2968 /* this will take the cleared BSSID from bss_conf */
2969 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2970 if (ret)
2971 IWL_ERR(mvm,
2972 "failed to update MAC %pM (clear after unassoc)\n",
2973 vif->addr);
2974 }
2975
2976 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes);
2977 }
2978
2979 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf,
2980 changes);
2981 }
2982
iwl_mvm_start_ap_ibss_common(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int * ret)2983 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw,
2984 struct ieee80211_vif *vif,
2985 int *ret)
2986 {
2987 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2988 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2989 int i;
2990
2991 lockdep_assert_held(&mvm->mutex);
2992
2993 mvmvif->ap_assoc_sta_count = 0;
2994
2995 /* must be set before quota calculations */
2996 mvmvif->ap_ibss_active = true;
2997
2998 /* send all the early keys to the device now */
2999 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
3000 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i];
3001
3002 if (!key)
3003 continue;
3004
3005 mvmvif->ap_early_keys[i] = NULL;
3006
3007 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key);
3008 if (*ret)
3009 return true;
3010 }
3011
3012 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
3013 iwl_mvm_vif_set_low_latency(mvmvif, true,
3014 LOW_LATENCY_VIF_TYPE);
3015 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);
3016 }
3017
3018 /* power updated needs to be done before quotas */
3019 iwl_mvm_power_update_mac(mvm);
3020
3021 return false;
3022 }
3023
iwl_mvm_start_ap_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)3024 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
3025 struct ieee80211_vif *vif,
3026 struct ieee80211_bss_conf *link_conf)
3027 {
3028 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3029 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3030 int ret;
3031
3032 mutex_lock(&mvm->mutex);
3033
3034 /*
3035 * Re-calculate the tsf id, as the leader-follower relations depend on
3036 * the beacon interval, which was not known when the AP interface
3037 * was added.
3038 */
3039 if (vif->type == NL80211_IFTYPE_AP)
3040 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
3041
3042 /* For older devices need to send beacon template before adding mac
3043 * context. For the newer, the beacon is a resource that belongs to a
3044 * MAC, so need to send beacon template after adding the mac.
3045 */
3046 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) {
3047 /* Add the mac context */
3048 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
3049 if (ret)
3050 goto out_unlock;
3051
3052 /* Send the beacon template */
3053 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
3054 if (ret)
3055 goto out_unlock;
3056 } else {
3057 /* Send the beacon template */
3058 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
3059 if (ret)
3060 goto out_unlock;
3061
3062 /* Add the mac context */
3063 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
3064 if (ret)
3065 goto out_unlock;
3066 }
3067
3068 /* Perform the binding */
3069 ret = iwl_mvm_binding_add_vif(mvm, vif);
3070 if (ret)
3071 goto out_remove;
3072
3073 /*
3074 * This is not very nice, but the simplest:
3075 * For older FWs adding the mcast sta before the bcast station may
3076 * cause assert 0x2b00.
3077 * This is fixed in later FW so make the order of removal depend on
3078 * the TLV
3079 */
3080 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
3081 ret = iwl_mvm_add_mcast_sta(mvm, vif);
3082 if (ret)
3083 goto out_unbind;
3084 /*
3085 * Send the bcast station. At this stage the TBTT and DTIM time
3086 * events are added and applied to the scheduler
3087 */
3088 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
3089 if (ret) {
3090 iwl_mvm_rm_mcast_sta(mvm, vif);
3091 goto out_unbind;
3092 }
3093 } else {
3094 /*
3095 * Send the bcast station. At this stage the TBTT and DTIM time
3096 * events are added and applied to the scheduler
3097 */
3098 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
3099 if (ret)
3100 goto out_unbind;
3101 ret = iwl_mvm_add_mcast_sta(mvm, vif);
3102 if (ret) {
3103 iwl_mvm_send_rm_bcast_sta(mvm, vif);
3104 goto out_unbind;
3105 }
3106 }
3107
3108 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret))
3109 goto out_failed;
3110
3111 ret = iwl_mvm_update_quotas(mvm, false, NULL);
3112 if (ret)
3113 goto out_failed;
3114
3115 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
3116 if (vif->p2p && mvm->p2p_device_vif)
3117 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
3118
3119 iwl_mvm_bt_coex_vif_change(mvm);
3120
3121 /* we don't support TDLS during DCM */
3122 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3123 iwl_mvm_teardown_tdls_peers(mvm);
3124
3125 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf);
3126
3127 goto out_unlock;
3128
3129 out_failed:
3130 iwl_mvm_power_update_mac(mvm);
3131 mvmvif->ap_ibss_active = false;
3132 iwl_mvm_send_rm_bcast_sta(mvm, vif);
3133 iwl_mvm_rm_mcast_sta(mvm, vif);
3134 out_unbind:
3135 iwl_mvm_binding_remove_vif(mvm, vif);
3136 out_remove:
3137 iwl_mvm_mac_ctxt_remove(mvm, vif);
3138 out_unlock:
3139 mutex_unlock(&mvm->mutex);
3140 return ret;
3141 }
3142
iwl_mvm_start_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)3143 static int iwl_mvm_start_ap(struct ieee80211_hw *hw,
3144 struct ieee80211_vif *vif,
3145 struct ieee80211_bss_conf *link_conf)
3146 {
3147 return iwl_mvm_start_ap_ibss(hw, vif, link_conf);
3148 }
3149
iwl_mvm_start_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif)3150 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw,
3151 struct ieee80211_vif *vif)
3152 {
3153 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf);
3154 }
3155
3156 /* Common part for MLD and non-MLD ops */
iwl_mvm_stop_ap_ibss_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif)3157 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm,
3158 struct ieee80211_vif *vif)
3159 {
3160 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3161
3162 lockdep_assert_held(&mvm->mutex);
3163
3164 iwl_mvm_prepare_mac_removal(mvm, vif);
3165
3166 /* Handle AP stop while in CSA */
3167 if (rcu_access_pointer(mvm->csa_vif) == vif) {
3168 iwl_mvm_remove_time_event(mvm, mvmvif,
3169 &mvmvif->time_event_data);
3170 RCU_INIT_POINTER(mvm->csa_vif, NULL);
3171 mvmvif->csa_countdown = false;
3172 }
3173
3174 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
3175 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
3176 mvm->csa_tx_block_bcn_timeout = 0;
3177 }
3178
3179 mvmvif->ap_ibss_active = false;
3180 mvm->ap_last_beacon_gp2 = 0;
3181
3182 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
3183 iwl_mvm_vif_set_low_latency(mvmvif, false,
3184 LOW_LATENCY_VIF_TYPE);
3185 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id);
3186 }
3187
3188 iwl_mvm_bt_coex_vif_change(mvm);
3189 }
3190
iwl_mvm_stop_ap_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)3191 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
3192 struct ieee80211_vif *vif,
3193 struct ieee80211_bss_conf *link_conf)
3194 {
3195 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3196
3197 guard(mvm)(mvm);
3198
3199 iwl_mvm_stop_ap_ibss_common(mvm, vif);
3200
3201 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
3202 if (vif->p2p && mvm->p2p_device_vif)
3203 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
3204
3205 iwl_mvm_update_quotas(mvm, false, NULL);
3206
3207 iwl_mvm_ftm_responder_clear(mvm, vif);
3208
3209 /*
3210 * This is not very nice, but the simplest:
3211 * For older FWs removing the mcast sta before the bcast station may
3212 * cause assert 0x2b00.
3213 * This is fixed in later FW (which will stop beaconing when removing
3214 * bcast station).
3215 * So make the order of removal depend on the TLV
3216 */
3217 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
3218 iwl_mvm_rm_mcast_sta(mvm, vif);
3219 iwl_mvm_send_rm_bcast_sta(mvm, vif);
3220 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
3221 iwl_mvm_rm_mcast_sta(mvm, vif);
3222 iwl_mvm_binding_remove_vif(mvm, vif);
3223
3224 iwl_mvm_power_update_mac(mvm);
3225
3226 iwl_mvm_mac_ctxt_remove(mvm, vif);
3227 }
3228
iwl_mvm_stop_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)3229 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw,
3230 struct ieee80211_vif *vif,
3231 struct ieee80211_bss_conf *link_conf)
3232 {
3233 iwl_mvm_stop_ap_ibss(hw, vif, link_conf);
3234 }
3235
iwl_mvm_stop_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif)3236 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw,
3237 struct ieee80211_vif *vif)
3238 {
3239 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf);
3240 }
3241
3242 static void
iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf,u64 changes)3243 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
3244 struct ieee80211_vif *vif,
3245 struct ieee80211_bss_conf *bss_conf,
3246 u64 changes)
3247 {
3248 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3249
3250 /* Changes will be applied when the AP/IBSS is started */
3251 if (!mvmvif->ap_ibss_active)
3252 return;
3253
3254 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
3255 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3256 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
3257 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
3258
3259 /* Need to send a new beacon template to the FW */
3260 if (changes & BSS_CHANGED_BEACON &&
3261 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf))
3262 IWL_WARN(mvm, "Failed updating beacon data\n");
3263
3264 if (changes & BSS_CHANGED_FTM_RESPONDER) {
3265 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf);
3266
3267 if (ret)
3268 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n",
3269 ret);
3270 }
3271
3272 }
3273
iwl_mvm_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf,u64 changes)3274 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
3275 struct ieee80211_vif *vif,
3276 struct ieee80211_bss_conf *bss_conf,
3277 u64 changes)
3278 {
3279 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3280
3281 guard(mvm)(mvm);
3282
3283 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle)
3284 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
3285
3286 switch (vif->type) {
3287 case NL80211_IFTYPE_STATION:
3288 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
3289 break;
3290 case NL80211_IFTYPE_AP:
3291 case NL80211_IFTYPE_ADHOC:
3292 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
3293 break;
3294 case NL80211_IFTYPE_MONITOR:
3295 if (changes & BSS_CHANGED_MU_GROUPS)
3296 iwl_mvm_update_mu_groups(mvm, vif);
3297 break;
3298 default:
3299 /* shouldn't happen */
3300 WARN_ON_ONCE(1);
3301 }
3302
3303 if (changes & BSS_CHANGED_TXPOWER) {
3304 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n",
3305 bss_conf->txpower);
3306 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
3307 }
3308 }
3309
iwl_mvm_mac_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * hw_req)3310 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3311 struct ieee80211_scan_request *hw_req)
3312 {
3313 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3314
3315 if (hw_req->req.n_channels == 0 ||
3316 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
3317 return -EINVAL;
3318
3319 guard(mvm)(mvm);
3320 return iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
3321 }
3322
iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)3323 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
3324 struct ieee80211_vif *vif)
3325 {
3326 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3327
3328 guard(mvm)(mvm);
3329
3330 /* Due to a race condition, it's possible that mac80211 asks
3331 * us to stop a hw_scan when it's already stopped. This can
3332 * happen, for instance, if we stopped the scan ourselves,
3333 * called ieee80211_scan_completed() and the userspace called
3334 * cancel scan scan before ieee80211_scan_work() could run.
3335 * To handle that, simply return if the scan is not running.
3336 */
3337 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
3338 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
3339 }
3340
3341 void
iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tids,int num_frames,enum ieee80211_frame_release_type reason,bool more_data)3342 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3343 struct ieee80211_sta *sta, u16 tids,
3344 int num_frames,
3345 enum ieee80211_frame_release_type reason,
3346 bool more_data)
3347 {
3348 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3349
3350 /* Called when we need to transmit (a) frame(s) from mac80211 */
3351
3352 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
3353 tids, more_data, false);
3354 }
3355
3356 void
iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw * hw,struct ieee80211_sta * sta,u16 tids,int num_frames,enum ieee80211_frame_release_type reason,bool more_data)3357 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
3358 struct ieee80211_sta *sta, u16 tids,
3359 int num_frames,
3360 enum ieee80211_frame_release_type reason,
3361 bool more_data)
3362 {
3363 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3364
3365 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
3366
3367 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
3368 tids, more_data, true);
3369 }
3370
__iwl_mvm_mac_sta_notify(struct ieee80211_hw * hw,enum sta_notify_cmd cmd,struct ieee80211_sta * sta)3371 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
3372 enum sta_notify_cmd cmd,
3373 struct ieee80211_sta *sta)
3374 {
3375 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3376 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3377 unsigned long txqs = 0, tids = 0;
3378 int tid;
3379
3380 /*
3381 * If we have TVQM then we get too high queue numbers - luckily
3382 * we really shouldn't get here with that because such hardware
3383 * should have firmware supporting buffer station offload.
3384 */
3385 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
3386 return;
3387
3388 spin_lock_bh(&mvmsta->lock);
3389 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) {
3390 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
3391
3392 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
3393 continue;
3394
3395 __set_bit(tid_data->txq_id, &txqs);
3396
3397 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
3398 continue;
3399
3400 __set_bit(tid, &tids);
3401 }
3402
3403 switch (cmd) {
3404 case STA_NOTIFY_SLEEP:
3405 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3406 ieee80211_sta_set_buffered(sta, tid, true);
3407
3408 if (txqs)
3409 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
3410 /*
3411 * The fw updates the STA to be asleep. Tx packets on the Tx
3412 * queues to this station will not be transmitted. The fw will
3413 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
3414 */
3415 break;
3416 case STA_NOTIFY_AWAKE:
3417 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA))
3418 break;
3419
3420 if (txqs)
3421 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
3422 iwl_mvm_sta_modify_ps_wake(mvm, sta);
3423 break;
3424 default:
3425 break;
3426 }
3427 spin_unlock_bh(&mvmsta->lock);
3428 }
3429
iwl_mvm_mac_sta_notify(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum sta_notify_cmd cmd,struct ieee80211_sta * sta)3430 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3431 enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
3432 {
3433 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
3434 }
3435
iwl_mvm_sta_pm_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)3436 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
3437 {
3438 struct iwl_rx_packet *pkt = rxb_addr(rxb);
3439 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
3440 struct ieee80211_sta *sta;
3441 struct iwl_mvm_sta *mvmsta;
3442 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
3443
3444 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations))
3445 return;
3446
3447 rcu_read_lock();
3448 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
3449 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
3450 rcu_read_unlock();
3451 return;
3452 }
3453
3454 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3455
3456 if (!mvmsta->vif ||
3457 mvmsta->vif->type != NL80211_IFTYPE_AP) {
3458 rcu_read_unlock();
3459 return;
3460 }
3461
3462 if (mvmsta->sleeping != sleeping) {
3463 mvmsta->sleeping = sleeping;
3464 __iwl_mvm_mac_sta_notify(mvm->hw,
3465 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
3466 sta);
3467 ieee80211_sta_ps_transition(sta, sleeping);
3468 }
3469
3470 if (sleeping) {
3471 switch (notif->type) {
3472 case IWL_MVM_PM_EVENT_AWAKE:
3473 case IWL_MVM_PM_EVENT_ASLEEP:
3474 break;
3475 case IWL_MVM_PM_EVENT_UAPSD:
3476 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
3477 break;
3478 case IWL_MVM_PM_EVENT_PS_POLL:
3479 ieee80211_sta_pspoll(sta);
3480 break;
3481 default:
3482 break;
3483 }
3484 }
3485
3486 rcu_read_unlock();
3487 }
3488
iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3489 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
3490 struct ieee80211_vif *vif,
3491 struct ieee80211_sta *sta)
3492 {
3493 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3494 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3495 unsigned int link_id;
3496
3497 /*
3498 * This is called before mac80211 does RCU synchronisation,
3499 * so here we already invalidate our internal RCU-protected
3500 * station pointer. The rest of the code will thus no longer
3501 * be able to find the station this way, and we don't rely
3502 * on further RCU synchronisation after the sta_state()
3503 * callback deleted the station.
3504 * Since there's mvm->mutex here, no need to have RCU lock for
3505 * mvm_sta->link access.
3506 */
3507 guard(mvm)(mvm);
3508 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) {
3509 struct iwl_mvm_link_sta *link_sta;
3510 u32 sta_id;
3511
3512 if (!mvm_sta->link[link_id])
3513 continue;
3514
3515 link_sta = rcu_dereference_protected(mvm_sta->link[link_id],
3516 lockdep_is_held(&mvm->mutex));
3517 sta_id = link_sta->sta_id;
3518 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) {
3519 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id],
3520 ERR_PTR(-ENOENT));
3521 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL);
3522 }
3523 }
3524 }
3525
iwl_mvm_check_uapsd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const u8 * bssid)3526 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
3527 const u8 *bssid)
3528 {
3529 int i;
3530
3531 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
3532 struct iwl_mvm_tcm_mac *mdata;
3533
3534 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id];
3535 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate);
3536 mdata->opened_rx_ba_sessions = false;
3537 }
3538
3539 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
3540 return;
3541
3542 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
3543 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3544 return;
3545 }
3546
3547 if (!vif->p2p &&
3548 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
3549 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3550 return;
3551 }
3552
3553 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) {
3554 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) {
3555 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3556 return;
3557 }
3558 }
3559
3560 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
3561 }
3562
3563 static void
iwl_mvm_tdls_check_trigger(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u8 * peer_addr,enum nl80211_tdls_operation action)3564 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
3565 struct ieee80211_vif *vif, u8 *peer_addr,
3566 enum nl80211_tdls_operation action)
3567 {
3568 struct iwl_fw_dbg_trigger_tlv *trig;
3569 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
3570
3571 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
3572 FW_DBG_TRIGGER_TDLS);
3573 if (!trig)
3574 return;
3575
3576 tdls_trig = (void *)trig->data;
3577
3578 if (!(tdls_trig->action_bitmap & BIT(action)))
3579 return;
3580
3581 if (tdls_trig->peer_mode &&
3582 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
3583 return;
3584
3585 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
3586 "TDLS event occurred, peer %pM, action %d",
3587 peer_addr, action);
3588 }
3589
3590 struct iwl_mvm_he_obss_narrow_bw_ru_data {
3591 bool tolerated;
3592 };
3593
iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy * wiphy,struct cfg80211_bss * bss,void * _data)3594 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy,
3595 struct cfg80211_bss *bss,
3596 void *_data)
3597 {
3598 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data;
3599 const struct cfg80211_bss_ies *ies;
3600 const struct element *elem;
3601
3602 rcu_read_lock();
3603 ies = rcu_dereference(bss->ies);
3604 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data,
3605 ies->len);
3606
3607 if (!elem || elem->datalen < 10 ||
3608 !(elem->data[10] &
3609 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) {
3610 data->tolerated = false;
3611 }
3612 rcu_read_unlock();
3613 }
3614
3615 static void
iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,struct ieee80211_bss_conf * link_conf)3616 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,
3617 struct ieee80211_vif *vif,
3618 unsigned int link_id,
3619 struct ieee80211_bss_conf *link_conf)
3620 {
3621 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3622 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = {
3623 .tolerated = true,
3624 };
3625
3626 if (WARN_ON_ONCE(!link_conf->chanreq.oper.chan ||
3627 !mvmvif->link[link_id]))
3628 return;
3629
3630 if (!(link_conf->chanreq.oper.chan->flags & IEEE80211_CHAN_RADAR)) {
3631 mvmvif->link[link_id]->he_ru_2mhz_block = false;
3632 return;
3633 }
3634
3635 cfg80211_bss_iter(hw->wiphy, &link_conf->chanreq.oper,
3636 iwl_mvm_check_he_obss_narrow_bw_ru_iter,
3637 &iter_data);
3638
3639 /*
3640 * If there is at least one AP on radar channel that cannot
3641 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU.
3642 */
3643 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated;
3644 }
3645
iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm * mvm,struct ieee80211_vif * vif)3646 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm,
3647 struct ieee80211_vif *vif)
3648 {
3649 struct ieee80211_supported_band *sband;
3650 const struct ieee80211_sta_he_cap *he_cap;
3651
3652 if (vif->type != NL80211_IFTYPE_STATION)
3653 return;
3654
3655 if (!mvm->cca_40mhz_workaround)
3656 return;
3657
3658 /* decrement and check that we reached zero */
3659 mvm->cca_40mhz_workaround--;
3660 if (mvm->cca_40mhz_workaround)
3661 return;
3662
3663 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
3664
3665 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
3666
3667 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
3668
3669 if (he_cap) {
3670 /* we know that ours is writable */
3671 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
3672
3673 he->he_cap_elem.phy_cap_info[0] |=
3674 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
3675 }
3676 }
3677
iwl_mvm_mei_host_associated(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mvm_sta * mvm_sta)3678 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm,
3679 struct ieee80211_vif *vif,
3680 struct iwl_mvm_sta *mvm_sta)
3681 {
3682 #if IS_ENABLED(CONFIG_IWLMEI)
3683 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3684 struct iwl_mei_conn_info conn_info = {
3685 .ssid_len = vif->cfg.ssid_len,
3686 };
3687
3688 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3689 return;
3690
3691 if (!mvm->mei_registered)
3692 return;
3693
3694 /* FIXME: MEI needs to be updated for MLO */
3695 if (!vif->bss_conf.chanreq.oper.chan)
3696 return;
3697
3698 conn_info.channel = vif->bss_conf.chanreq.oper.chan->hw_value;
3699
3700 switch (mvm_sta->pairwise_cipher) {
3701 case WLAN_CIPHER_SUITE_TKIP:
3702 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP;
3703 break;
3704 case WLAN_CIPHER_SUITE_CCMP:
3705 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP;
3706 break;
3707 case WLAN_CIPHER_SUITE_GCMP:
3708 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP;
3709 break;
3710 case WLAN_CIPHER_SUITE_GCMP_256:
3711 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256;
3712 break;
3713 case 0:
3714 /* open profile */
3715 break;
3716 default:
3717 /* cipher not supported, don't send anything to iwlmei */
3718 return;
3719 }
3720
3721 switch (mvmvif->rekey_data.akm) {
3722 case WLAN_AKM_SUITE_SAE & 0xff:
3723 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE;
3724 break;
3725 case WLAN_AKM_SUITE_PSK & 0xff:
3726 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK;
3727 break;
3728 case WLAN_AKM_SUITE_8021X & 0xff:
3729 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA;
3730 break;
3731 case 0:
3732 /* open profile */
3733 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN;
3734 break;
3735 default:
3736 /* auth method / AKM not supported */
3737 /* TODO: All the FT vesions of these? */
3738 return;
3739 }
3740
3741 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len);
3742 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN);
3743
3744 /* TODO: add support for collocated AP data */
3745 iwl_mei_host_associated(&conn_info, NULL);
3746 #endif
3747 }
3748
iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool force_assoc_off)3749 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm,
3750 struct ieee80211_vif *vif,
3751 bool force_assoc_off)
3752 {
3753 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL);
3754 }
3755
iwl_mvm_mac_sta_state(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,enum ieee80211_sta_state old_state,enum ieee80211_sta_state new_state)3756 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
3757 struct ieee80211_vif *vif,
3758 struct ieee80211_sta *sta,
3759 enum ieee80211_sta_state old_state,
3760 enum ieee80211_sta_state new_state)
3761 {
3762 static const struct iwl_mvm_sta_state_ops callbacks = {
3763 .add_sta = iwl_mvm_add_sta,
3764 .update_sta = iwl_mvm_update_sta,
3765 .rm_sta = iwl_mvm_rm_sta,
3766 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper,
3767 };
3768
3769 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state,
3770 &callbacks);
3771 }
3772
3773 /* FIXME: temporary making two assumptions in all sta handling functions:
3774 * (1) when setting sta state, the link exists and protected
3775 * (2) if a link is valid in sta then it's valid in vif (can
3776 * use same index in the link array)
3777 */
iwl_mvm_rs_rate_init_all_links(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3778 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm,
3779 struct ieee80211_vif *vif,
3780 struct ieee80211_sta *sta)
3781 {
3782 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3783 unsigned int link_id;
3784
3785 for_each_mvm_vif_valid_link(mvmvif, link_id) {
3786 struct ieee80211_bss_conf *conf =
3787 link_conf_dereference_check(vif, link_id);
3788 struct ieee80211_link_sta *link_sta =
3789 link_sta_dereference_check(sta, link_id);
3790
3791 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt)
3792 continue;
3793
3794 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta,
3795 mvmvif->link[link_id]->phy_ctxt->channel->band);
3796 }
3797 }
3798
iwl_mvm_vif_conf_from_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3799 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm,
3800 struct ieee80211_vif *vif,
3801 struct ieee80211_sta *sta)
3802 {
3803 struct ieee80211_link_sta *link_sta;
3804 unsigned int link_id;
3805
3806 /* Beacon interval check - firmware will crash if the beacon
3807 * interval is less than 16. We can't avoid connecting at all,
3808 * so refuse the station state change, this will cause mac80211
3809 * to abandon attempts to connect to this AP, and eventually
3810 * wpa_s will blocklist the AP...
3811 */
3812
3813 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3814 struct ieee80211_bss_conf *link_conf =
3815 link_conf_dereference_protected(vif, link_id);
3816
3817 if (!link_conf)
3818 continue;
3819
3820 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) {
3821 IWL_ERR(mvm,
3822 "Beacon interval %d for AP %pM is too small\n",
3823 link_conf->beacon_int, link_sta->addr);
3824 return false;
3825 }
3826
3827 link_conf->he_support = link_sta->he_cap.has_he;
3828 }
3829
3830 return true;
3831 }
3832
iwl_mvm_vif_set_he_support(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool is_sta)3833 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw,
3834 struct ieee80211_vif *vif,
3835 struct ieee80211_sta *sta,
3836 bool is_sta)
3837 {
3838 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3839 struct ieee80211_link_sta *link_sta;
3840 unsigned int link_id;
3841
3842 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3843 struct ieee80211_bss_conf *link_conf =
3844 link_conf_dereference_protected(vif, link_id);
3845
3846 if (!link_conf || !mvmvif->link[link_id])
3847 continue;
3848
3849 link_conf->he_support = link_sta->he_cap.has_he;
3850
3851 if (is_sta) {
3852 mvmvif->link[link_id]->he_ru_2mhz_block = false;
3853 if (link_sta->he_cap.has_he)
3854 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif,
3855 link_id,
3856 link_conf);
3857 }
3858 }
3859 }
3860
3861 static int
iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,const struct iwl_mvm_sta_state_ops * callbacks)3862 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm,
3863 struct ieee80211_vif *vif,
3864 struct ieee80211_sta *sta,
3865 const struct iwl_mvm_sta_state_ops *callbacks)
3866 {
3867 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3868 struct ieee80211_link_sta *link_sta;
3869 unsigned int i;
3870 int ret;
3871
3872 lockdep_assert_held(&mvm->mutex);
3873
3874 if (vif->type == NL80211_IFTYPE_STATION &&
3875 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta))
3876 return -EINVAL;
3877
3878 if (sta->tdls &&
3879 (vif->p2p ||
3880 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT ||
3881 iwl_mvm_phy_ctx_count(mvm) > 1)) {
3882 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
3883 return -EBUSY;
3884 }
3885
3886 ret = callbacks->add_sta(mvm, vif, sta);
3887 if (sta->tdls && ret == 0) {
3888 iwl_mvm_recalc_tdls_state(mvm, vif, true);
3889 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3890 NL80211_TDLS_SETUP);
3891 }
3892
3893 if (ret)
3894 return ret;
3895
3896 for_each_sta_active_link(vif, sta, link_sta, i)
3897 link_sta->agg.max_rc_amsdu_len = 1;
3898
3899 ieee80211_sta_recalc_aggregates(sta);
3900
3901 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
3902 mvmvif->ap_sta = sta;
3903
3904 /*
3905 * Initialize the rates here already - this really tells
3906 * the firmware only what the supported legacy rates are
3907 * (may be) since it's initialized already from what the
3908 * AP advertised in the beacon/probe response. This will
3909 * allow the firmware to send auth/assoc frames with one
3910 * of the supported rates already, rather than having to
3911 * use a mandatory rate.
3912 * If we're the AP, we'll just assume mandatory rates at
3913 * this point, but we know nothing about the STA anyway.
3914 */
3915 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3916
3917 return 0;
3918 }
3919
3920 static int
iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw * hw,struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,const struct iwl_mvm_sta_state_ops * callbacks)3921 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw,
3922 struct iwl_mvm *mvm,
3923 struct ieee80211_vif *vif,
3924 struct ieee80211_sta *sta,
3925 const struct iwl_mvm_sta_state_ops *callbacks)
3926 {
3927 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3928 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3929 struct ieee80211_link_sta *link_sta;
3930 unsigned int link_id;
3931
3932 lockdep_assert_held(&mvm->mutex);
3933
3934 if (vif->type == NL80211_IFTYPE_AP) {
3935 iwl_mvm_vif_set_he_support(hw, vif, sta, false);
3936 mvmvif->ap_assoc_sta_count++;
3937 callbacks->mac_ctxt_changed(mvm, vif, false);
3938
3939 /* since the below is not for MLD API, it's ok to use
3940 * the default bss_conf
3941 */
3942 if (!mvm->mld_api_is_used &&
3943 (vif->bss_conf.he_support &&
3944 !iwlwifi_mod_params.disable_11ax))
3945 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id);
3946 } else if (vif->type == NL80211_IFTYPE_STATION) {
3947 iwl_mvm_vif_set_he_support(hw, vif, sta, true);
3948
3949 callbacks->mac_ctxt_changed(mvm, vif, false);
3950
3951 if (!mvm->mld_api_is_used)
3952 goto out;
3953
3954 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3955 struct ieee80211_bss_conf *link_conf =
3956 link_conf_dereference_protected(vif, link_id);
3957
3958 if (WARN_ON(!link_conf))
3959 return -EINVAL;
3960 if (!mvmvif->link[link_id])
3961 continue;
3962
3963 iwl_mvm_link_changed(mvm, vif, link_conf,
3964 LINK_CONTEXT_MODIFY_ALL &
3965 ~LINK_CONTEXT_MODIFY_ACTIVE,
3966 true);
3967 }
3968 }
3969
3970 out:
3971 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3972
3973 return callbacks->update_sta(mvm, vif, sta);
3974 }
3975
3976 static int
iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,const struct iwl_mvm_sta_state_ops * callbacks)3977 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm,
3978 struct ieee80211_vif *vif,
3979 struct ieee80211_sta *sta,
3980 const struct iwl_mvm_sta_state_ops *callbacks)
3981 {
3982 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3983 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3984
3985 lockdep_assert_held(&mvm->mutex);
3986
3987 /* we don't support TDLS during DCM */
3988 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3989 iwl_mvm_teardown_tdls_peers(mvm);
3990
3991 if (sta->tdls) {
3992 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3993 NL80211_TDLS_ENABLE_LINK);
3994 } else {
3995 /* enable beacon filtering */
3996 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif));
3997
3998 mvmvif->authorized = 1;
3999
4000 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
4001 mvmvif->link_selection_res = vif->active_links;
4002 mvmvif->link_selection_primary =
4003 vif->active_links ? __ffs(vif->active_links) : 0;
4004 }
4005
4006 callbacks->mac_ctxt_changed(mvm, vif, false);
4007 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta);
4008
4009 memset(&mvmvif->last_esr_exit, 0,
4010 sizeof(mvmvif->last_esr_exit));
4011
4012 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_TPT, 0);
4013
4014 /* Block until FW notif will arrive */
4015 iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, 0);
4016
4017 /* when client is authorized (AP station marked as such),
4018 * try to enable the best link(s).
4019 */
4020 if (vif->type == NL80211_IFTYPE_STATION &&
4021 !test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
4022 iwl_mvm_select_links(mvm, vif);
4023 }
4024
4025 mvm_sta->authorized = true;
4026
4027 /* MFP is set by default before the station is authorized.
4028 * Clear it here in case it's not used.
4029 */
4030 if (!sta->mfp) {
4031 int ret = callbacks->update_sta(mvm, vif, sta);
4032
4033 if (ret)
4034 return ret;
4035 }
4036
4037 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4038
4039 return 0;
4040 }
4041
4042 static int
iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta,const struct iwl_mvm_sta_state_ops * callbacks)4043 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm,
4044 struct ieee80211_vif *vif,
4045 struct ieee80211_sta *sta,
4046 const struct iwl_mvm_sta_state_ops *callbacks)
4047 {
4048 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4049 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4050
4051 lockdep_assert_held(&mvm->mutex);
4052
4053 mvmsta->authorized = false;
4054
4055 /* once we move into assoc state, need to update rate scale to
4056 * disable using wide bandwidth
4057 */
4058 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4059
4060 if (!sta->tdls) {
4061 /* Set this but don't call iwl_mvm_mac_ctxt_changed()
4062 * yet to avoid sending high prio again for a little
4063 * time.
4064 */
4065 mvmvif->authorized = 0;
4066 mvmvif->link_selection_res = 0;
4067
4068 /* disable beacon filtering */
4069 iwl_mvm_disable_beacon_filter(mvm, vif);
4070
4071 wiphy_delayed_work_cancel(mvm->hw->wiphy,
4072 &mvmvif->prevent_esr_done_wk);
4073
4074 wiphy_delayed_work_cancel(mvm->hw->wiphy,
4075 &mvmvif->mlo_int_scan_wk);
4076
4077 wiphy_work_cancel(mvm->hw->wiphy, &mvmvif->unblock_esr_tpt_wk);
4078
4079 /* No need for the periodic statistics anymore */
4080 if (ieee80211_vif_is_mld(vif) && mvmvif->esr_active)
4081 iwl_mvm_request_periodic_system_statistics(mvm, false);
4082 }
4083
4084 return 0;
4085 }
4086
4087 /* Common part for MLD and non-MLD modes */
iwl_mvm_mac_sta_state_common(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,enum ieee80211_sta_state old_state,enum ieee80211_sta_state new_state,const struct iwl_mvm_sta_state_ops * callbacks)4088 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw,
4089 struct ieee80211_vif *vif,
4090 struct ieee80211_sta *sta,
4091 enum ieee80211_sta_state old_state,
4092 enum ieee80211_sta_state new_state,
4093 const struct iwl_mvm_sta_state_ops *callbacks)
4094 {
4095 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4096 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4097 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
4098 struct ieee80211_link_sta *link_sta;
4099 unsigned int link_id;
4100 int ret;
4101
4102 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
4103 sta->addr, old_state, new_state);
4104
4105 /*
4106 * If we are in a STA removal flow and in DQA mode:
4107 *
4108 * This is after the sync_rcu part, so the queues have already been
4109 * flushed. No more TXs on their way in mac80211's path, and no more in
4110 * the queues.
4111 * Also, we won't be getting any new TX frames for this station.
4112 * What we might have are deferred TX frames that need to be taken care
4113 * of.
4114 *
4115 * Drop any still-queued deferred-frame before removing the STA, and
4116 * make sure the worker is no longer handling frames for this STA.
4117 */
4118 if (old_state == IEEE80211_STA_NONE &&
4119 new_state == IEEE80211_STA_NOTEXIST) {
4120 flush_work(&mvm->add_stream_wk);
4121
4122 /*
4123 * No need to make sure deferred TX indication is off since the
4124 * worker will already remove it if it was on
4125 */
4126
4127 /*
4128 * Additionally, reset the 40 MHz capability if we disconnected
4129 * from the AP now.
4130 */
4131 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif);
4132
4133 /* Also free dup data just in case any assertions below fail */
4134 kfree(mvm_sta->dup_data);
4135 }
4136
4137 mutex_lock(&mvm->mutex);
4138
4139 /* this would be a mac80211 bug ... but don't crash, unless we had a
4140 * firmware crash while we were activating a link, in which case it is
4141 * legit to have phy_ctxt = NULL. Don't bother not to WARN if we are in
4142 * recovery flow since we spit tons of error messages anyway.
4143 */
4144 for_each_sta_active_link(vif, sta, link_sta, link_id) {
4145 if (WARN_ON_ONCE(!mvmvif->link[link_id] ||
4146 !mvmvif->link[link_id]->phy_ctxt)) {
4147 mutex_unlock(&mvm->mutex);
4148 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
4149 &mvm->status) ? 0 : -EINVAL;
4150 }
4151 }
4152
4153 /* track whether or not the station is associated */
4154 mvm_sta->sta_state = new_state;
4155
4156 if (old_state == IEEE80211_STA_NOTEXIST &&
4157 new_state == IEEE80211_STA_NONE) {
4158 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta,
4159 callbacks);
4160 if (ret < 0)
4161 goto out_unlock;
4162 } else if (old_state == IEEE80211_STA_NONE &&
4163 new_state == IEEE80211_STA_AUTH) {
4164 /*
4165 * EBS may be disabled due to previous failures reported by FW.
4166 * Reset EBS status here assuming environment has been changed.
4167 */
4168 mvm->last_ebs_successful = true;
4169 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
4170 ret = 0;
4171 } else if (old_state == IEEE80211_STA_AUTH &&
4172 new_state == IEEE80211_STA_ASSOC) {
4173 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta,
4174 callbacks);
4175 } else if (old_state == IEEE80211_STA_ASSOC &&
4176 new_state == IEEE80211_STA_AUTHORIZED) {
4177 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta,
4178 callbacks);
4179 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
4180 new_state == IEEE80211_STA_ASSOC) {
4181 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta,
4182 callbacks);
4183 } else if (old_state == IEEE80211_STA_ASSOC &&
4184 new_state == IEEE80211_STA_AUTH) {
4185 if (vif->type == NL80211_IFTYPE_AP) {
4186 mvmvif->ap_assoc_sta_count--;
4187 callbacks->mac_ctxt_changed(mvm, vif, false);
4188 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
4189 iwl_mvm_stop_session_protection(mvm, vif);
4190 ret = 0;
4191 } else if (old_state == IEEE80211_STA_AUTH &&
4192 new_state == IEEE80211_STA_NONE) {
4193 ret = 0;
4194 } else if (old_state == IEEE80211_STA_NONE &&
4195 new_state == IEEE80211_STA_NOTEXIST) {
4196 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) {
4197 iwl_mvm_stop_session_protection(mvm, vif);
4198 mvmvif->ap_sta = NULL;
4199 }
4200 ret = callbacks->rm_sta(mvm, vif, sta);
4201 if (sta->tdls) {
4202 iwl_mvm_recalc_tdls_state(mvm, vif, false);
4203 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
4204 NL80211_TDLS_DISABLE_LINK);
4205 }
4206
4207 if (unlikely(ret &&
4208 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
4209 &mvm->status)))
4210 ret = 0;
4211 } else {
4212 ret = -EIO;
4213 }
4214 out_unlock:
4215 mutex_unlock(&mvm->mutex);
4216
4217 if (sta->tdls && ret == 0) {
4218 if (old_state == IEEE80211_STA_NOTEXIST &&
4219 new_state == IEEE80211_STA_NONE)
4220 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
4221 else if (old_state == IEEE80211_STA_NONE &&
4222 new_state == IEEE80211_STA_NOTEXIST)
4223 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
4224 }
4225
4226 return ret;
4227 }
4228
iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw * hw,u32 value)4229 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
4230 {
4231 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4232
4233 mvm->rts_threshold = value;
4234
4235 return 0;
4236 }
4237
iwl_mvm_sta_rc_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u32 changed)4238 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4239 struct ieee80211_sta *sta, u32 changed)
4240 {
4241 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4242
4243 if (changed & (IEEE80211_RC_BW_CHANGED |
4244 IEEE80211_RC_SUPP_RATES_CHANGED |
4245 IEEE80211_RC_NSS_CHANGED))
4246 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4247
4248 if (vif->type == NL80211_IFTYPE_STATION &&
4249 changed & IEEE80211_RC_NSS_CHANGED)
4250 iwl_mvm_sf_update(mvm, vif, false);
4251 }
4252
iwl_mvm_mac_conf_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int link_id,u16 ac,const struct ieee80211_tx_queue_params * params)4253 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
4254 struct ieee80211_vif *vif,
4255 unsigned int link_id, u16 ac,
4256 const struct ieee80211_tx_queue_params *params)
4257 {
4258 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4259 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4260
4261 mvmvif->deflink.queue_params[ac] = *params;
4262
4263 /*
4264 * No need to update right away, we'll get BSS_CHANGED_QOS
4265 * The exception is P2P_DEVICE interface which needs immediate update.
4266 */
4267 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
4268 guard(mvm)(mvm);
4269 return iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
4270 }
4271 return 0;
4272 }
4273
iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)4274 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
4275 struct ieee80211_vif *vif,
4276 struct ieee80211_prep_tx_info *info)
4277 {
4278 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4279 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4280
4281 if (info->was_assoc && !mvmvif->session_prot_connection_loss)
4282 return;
4283
4284 guard(mvm)(mvm);
4285 iwl_mvm_protect_assoc(mvm, vif, info->duration, info->link_id);
4286 }
4287
iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)4288 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw,
4289 struct ieee80211_vif *vif,
4290 struct ieee80211_prep_tx_info *info)
4291 {
4292 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4293
4294 /* for successful cases (auth/assoc), don't cancel session protection */
4295 if (info->success)
4296 return;
4297
4298 guard(mvm)(mvm);
4299 iwl_mvm_stop_session_protection(mvm, vif);
4300 }
4301
iwl_mvm_mac_sched_scan_start(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_sched_scan_request * req,struct ieee80211_scan_ies * ies)4302 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
4303 struct ieee80211_vif *vif,
4304 struct cfg80211_sched_scan_request *req,
4305 struct ieee80211_scan_ies *ies)
4306 {
4307 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4308
4309 guard(mvm)(mvm);
4310
4311 if (!vif->cfg.idle)
4312 return -EBUSY;
4313
4314 return iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
4315 }
4316
iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw * hw,struct ieee80211_vif * vif)4317 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
4318 struct ieee80211_vif *vif)
4319 {
4320 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4321 int ret;
4322
4323 mutex_lock(&mvm->mutex);
4324
4325 /* Due to a race condition, it's possible that mac80211 asks
4326 * us to stop a sched_scan when it's already stopped. This
4327 * can happen, for instance, if we stopped the scan ourselves,
4328 * called ieee80211_sched_scan_stopped() and the userspace called
4329 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
4330 * could run. To handle this, simply return if the scan is
4331 * not running.
4332 */
4333 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
4334 mutex_unlock(&mvm->mutex);
4335 return 0;
4336 }
4337
4338 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
4339 mutex_unlock(&mvm->mutex);
4340 iwl_mvm_wait_for_async_handlers(mvm);
4341
4342 return ret;
4343 }
4344
__iwl_mvm_mac_set_key(struct ieee80211_hw * hw,enum set_key_cmd cmd,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key)4345 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
4346 enum set_key_cmd cmd,
4347 struct ieee80211_vif *vif,
4348 struct ieee80211_sta *sta,
4349 struct ieee80211_key_conf *key)
4350 {
4351 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4352 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4353 struct iwl_mvm_sta *mvmsta = NULL;
4354 struct iwl_mvm_key_pn *ptk_pn = NULL;
4355 int keyidx = key->keyidx;
4356 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);
4357 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);
4358 int ret, i;
4359 u8 key_offset;
4360
4361 if (sta)
4362 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4363
4364 switch (key->cipher) {
4365 case WLAN_CIPHER_SUITE_TKIP:
4366 if (!mvm->trans->trans_cfg->gen2) {
4367 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
4368 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
4369 } else if (vif->type == NL80211_IFTYPE_STATION) {
4370 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE;
4371 } else {
4372 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n");
4373 return -EOPNOTSUPP;
4374 }
4375 break;
4376 case WLAN_CIPHER_SUITE_CCMP:
4377 case WLAN_CIPHER_SUITE_GCMP:
4378 case WLAN_CIPHER_SUITE_GCMP_256:
4379 if (!iwl_mvm_has_new_tx_api(mvm))
4380 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
4381 break;
4382 case WLAN_CIPHER_SUITE_AES_CMAC:
4383 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
4384 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
4385 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
4386 break;
4387 case WLAN_CIPHER_SUITE_WEP40:
4388 case WLAN_CIPHER_SUITE_WEP104:
4389 if (vif->type == NL80211_IFTYPE_STATION)
4390 break;
4391 if (iwl_mvm_has_new_tx_api(mvm))
4392 return -EOPNOTSUPP;
4393 /* support HW crypto on TX */
4394 return 0;
4395 default:
4396 return -EOPNOTSUPP;
4397 }
4398
4399 switch (cmd) {
4400 case SET_KEY:
4401 if (vif->type == NL80211_IFTYPE_STATION &&
4402 (keyidx == 6 || keyidx == 7))
4403 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6],
4404 key);
4405
4406 if ((vif->type == NL80211_IFTYPE_ADHOC ||
4407 vif->type == NL80211_IFTYPE_AP) && !sta) {
4408 /*
4409 * GTK on AP interface is a TX-only key, return 0;
4410 * on IBSS they're per-station and because we're lazy
4411 * we don't support them for RX, so do the same.
4412 * CMAC/GMAC in AP/IBSS modes must be done in software
4413 * on older NICs.
4414 *
4415 * Except, of course, beacon protection - it must be
4416 * offloaded since we just set a beacon template, and
4417 * then we must also offload the IGTK (not just BIGTK)
4418 * for firmware reasons.
4419 *
4420 * So just check for beacon protection - if we don't
4421 * have it we cannot get here with keyidx >= 6, and
4422 * if we do have it we need to send the key to FW in
4423 * all cases (CMAC/GMAC).
4424 */
4425 if (!wiphy_ext_feature_isset(hw->wiphy,
4426 NL80211_EXT_FEATURE_BEACON_PROTECTION) &&
4427 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
4428 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
4429 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) {
4430 ret = -EOPNOTSUPP;
4431 break;
4432 }
4433
4434 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
4435 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
4436 !iwl_mvm_has_new_tx_api(mvm)) {
4437 key->hw_key_idx = STA_KEY_IDX_INVALID;
4438 ret = 0;
4439 break;
4440 }
4441
4442 if (!mvmvif->ap_ibss_active) {
4443 for (i = 0;
4444 i < ARRAY_SIZE(mvmvif->ap_early_keys);
4445 i++) {
4446 if (!mvmvif->ap_early_keys[i]) {
4447 mvmvif->ap_early_keys[i] = key;
4448 break;
4449 }
4450 }
4451
4452 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys))
4453 ret = -ENOSPC;
4454 else
4455 ret = 0;
4456
4457 break;
4458 }
4459 }
4460
4461 /* During FW restart, in order to restore the state as it was,
4462 * don't try to reprogram keys we previously failed for.
4463 */
4464 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
4465 key->hw_key_idx == STA_KEY_IDX_INVALID) {
4466 IWL_DEBUG_MAC80211(mvm,
4467 "skip invalid idx key programming during restart\n");
4468 ret = 0;
4469 break;
4470 }
4471
4472 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
4473 mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
4474 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
4475 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
4476 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
4477 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
4478 struct ieee80211_key_seq seq;
4479 int tid, q;
4480
4481 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
4482 ptk_pn = kzalloc(struct_size(ptk_pn, q,
4483 mvm->trans->num_rx_queues),
4484 GFP_KERNEL);
4485 if (!ptk_pn) {
4486 ret = -ENOMEM;
4487 break;
4488 }
4489
4490 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
4491 ieee80211_get_key_rx_seq(key, tid, &seq);
4492 for (q = 0; q < mvm->trans->num_rx_queues; q++)
4493 memcpy(ptk_pn->q[q].pn[tid],
4494 seq.ccmp.pn,
4495 IEEE80211_CCMP_PN_LEN);
4496 }
4497
4498 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
4499 }
4500
4501 /* in HW restart reuse the index, otherwise request a new one */
4502 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
4503 key_offset = key->hw_key_idx;
4504 else
4505 key_offset = STA_KEY_IDX_INVALID;
4506
4507 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4508 mvmsta->pairwise_cipher = key->cipher;
4509
4510 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n",
4511 sta ? sta->addr : NULL, key->keyidx);
4512
4513 if (sec_key_ver)
4514 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key);
4515 else
4516 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
4517
4518 if (ret) {
4519 IWL_WARN(mvm, "set key failed\n");
4520 key->hw_key_idx = STA_KEY_IDX_INVALID;
4521 if (ptk_pn) {
4522 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
4523 kfree(ptk_pn);
4524 }
4525 /*
4526 * can't add key for RX, but we don't need it
4527 * in the device for TX so still return 0,
4528 * unless we have new TX API where we cannot
4529 * put key material into the TX_CMD
4530 */
4531 if (iwl_mvm_has_new_tx_api(mvm))
4532 ret = -EOPNOTSUPP;
4533 else
4534 ret = 0;
4535 }
4536
4537 break;
4538 case DISABLE_KEY:
4539 if (vif->type == NL80211_IFTYPE_STATION &&
4540 (keyidx == 6 || keyidx == 7))
4541 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6],
4542 NULL);
4543
4544 ret = -ENOENT;
4545 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
4546 if (mvmvif->ap_early_keys[i] == key) {
4547 mvmvif->ap_early_keys[i] = NULL;
4548 ret = 0;
4549 }
4550 }
4551
4552 /* found in pending list - don't do anything else */
4553 if (ret == 0)
4554 break;
4555
4556 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
4557 ret = 0;
4558 break;
4559 }
4560
4561 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
4562 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
4563 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
4564 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
4565 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
4566 ptk_pn = rcu_dereference_protected(
4567 mvmsta->ptk_pn[keyidx],
4568 lockdep_is_held(&mvm->mutex));
4569 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
4570 if (ptk_pn)
4571 kfree_rcu(ptk_pn, rcu_head);
4572 }
4573
4574 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
4575 if (sec_key_ver)
4576 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key);
4577 else
4578 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
4579 break;
4580 default:
4581 ret = -EINVAL;
4582 }
4583
4584 return ret;
4585 }
4586
iwl_mvm_mac_set_key(struct ieee80211_hw * hw,enum set_key_cmd cmd,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key)4587 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
4588 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
4589 struct ieee80211_key_conf *key)
4590 {
4591 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4592
4593 guard(mvm)(mvm);
4594 return __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key);
4595 }
4596
iwl_mvm_mac_update_tkip_key(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_key_conf * keyconf,struct ieee80211_sta * sta,u32 iv32,u16 * phase1key)4597 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
4598 struct ieee80211_vif *vif,
4599 struct ieee80211_key_conf *keyconf,
4600 struct ieee80211_sta *sta,
4601 u32 iv32, u16 *phase1key)
4602 {
4603 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4604
4605 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
4606 return;
4607
4608 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
4609 }
4610
4611
iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data * notif_wait,struct iwl_rx_packet * pkt,void * data)4612 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
4613 struct iwl_rx_packet *pkt, void *data)
4614 {
4615 struct iwl_mvm *mvm =
4616 container_of(notif_wait, struct iwl_mvm, notif_wait);
4617 struct iwl_hs20_roc_res *resp;
4618 int resp_len = iwl_rx_packet_payload_len(pkt);
4619 struct iwl_mvm_time_event_data *te_data = data;
4620
4621 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
4622 return true;
4623
4624 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
4625 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
4626 return true;
4627 }
4628
4629 resp = (void *)pkt->data;
4630
4631 IWL_DEBUG_TE(mvm,
4632 "Aux ROC: Received response from ucode: status=%d uid=%d\n",
4633 resp->status, resp->event_unique_id);
4634
4635 te_data->uid = le32_to_cpu(resp->event_unique_id);
4636 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
4637 te_data->uid);
4638
4639 spin_lock_bh(&mvm->time_event_lock);
4640 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
4641 spin_unlock_bh(&mvm->time_event_lock);
4642
4643 return true;
4644 }
4645
iwl_mvm_send_aux_roc_cmd(struct iwl_mvm * mvm,struct ieee80211_channel * channel,struct ieee80211_vif * vif,int duration)4646 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
4647 struct ieee80211_channel *channel,
4648 struct ieee80211_vif *vif,
4649 int duration)
4650 {
4651 int res;
4652 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4653 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
4654 static const u16 time_event_response[] = { HOT_SPOT_CMD };
4655 struct iwl_notification_wait wait_time_event;
4656 u32 req_dur, delay;
4657 struct iwl_hs20_roc_req aux_roc_req = {
4658 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
4659 .id_and_color =
4660 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
4661 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
4662 };
4663 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm,
4664 &aux_roc_req.channel_info);
4665 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm);
4666
4667 /* Set the channel info data */
4668 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value,
4669 iwl_mvm_phy_band_from_nl80211(channel->band),
4670 IWL_PHY_CHANNEL_MODE20,
4671 0);
4672
4673 /* Set the time and duration */
4674 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm));
4675
4676 iwl_mvm_roc_duration_and_delay(vif, duration, &req_dur, &delay);
4677 tail->duration = cpu_to_le32(req_dur);
4678 tail->apply_time_max_delay = cpu_to_le32(delay);
4679
4680 IWL_DEBUG_TE(mvm,
4681 "ROC: Requesting to remain on channel %u for %ums\n",
4682 channel->hw_value, req_dur);
4683 IWL_DEBUG_TE(mvm,
4684 "\t(requested = %ums, max_delay = %ums)\n",
4685 duration, delay);
4686
4687 /* Set the node address */
4688 memcpy(tail->node_addr, vif->addr, ETH_ALEN);
4689
4690 lockdep_assert_held(&mvm->mutex);
4691
4692 spin_lock_bh(&mvm->time_event_lock);
4693
4694 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
4695 spin_unlock_bh(&mvm->time_event_lock);
4696 return -EIO;
4697 }
4698
4699 te_data->vif = vif;
4700 te_data->duration = duration;
4701 te_data->id = HOT_SPOT_CMD;
4702
4703 spin_unlock_bh(&mvm->time_event_lock);
4704
4705 /*
4706 * Use a notification wait, which really just processes the
4707 * command response and doesn't wait for anything, in order
4708 * to be able to process the response and get the UID inside
4709 * the RX path. Using CMD_WANT_SKB doesn't work because it
4710 * stores the buffer and then wakes up this thread, by which
4711 * time another notification (that the time event started)
4712 * might already be processed unsuccessfully.
4713 */
4714 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
4715 time_event_response,
4716 ARRAY_SIZE(time_event_response),
4717 iwl_mvm_rx_aux_roc, te_data);
4718
4719 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len,
4720 &aux_roc_req);
4721
4722 if (res) {
4723 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
4724 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
4725 goto out_clear_te;
4726 }
4727
4728 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
4729 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
4730 /* should never fail */
4731 WARN_ON_ONCE(res);
4732
4733 if (res) {
4734 out_clear_te:
4735 spin_lock_bh(&mvm->time_event_lock);
4736 iwl_mvm_te_clear_data(mvm, te_data);
4737 spin_unlock_bh(&mvm->time_event_lock);
4738 }
4739
4740 return res;
4741 }
4742
iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm * mvm,u32 lmac_id)4743 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id)
4744 {
4745 int ret = 0;
4746
4747 lockdep_assert_held(&mvm->mutex);
4748
4749 if (!fw_has_capa(&mvm->fw->ucode_capa,
4750 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
4751 IWL_ERR(mvm, "hotspot not supported\n");
4752 return -EINVAL;
4753 }
4754
4755 if (iwl_mvm_has_new_station_api(mvm->fw)) {
4756 ret = iwl_mvm_add_aux_sta(mvm, lmac_id);
4757 WARN(ret, "Failed to allocate aux station");
4758 }
4759
4760 return ret;
4761 }
4762
iwl_mvm_roc_link(struct iwl_mvm * mvm,struct ieee80211_vif * vif)4763 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
4764 {
4765 int ret;
4766
4767 lockdep_assert_held(&mvm->mutex);
4768
4769 ret = iwl_mvm_binding_add_vif(mvm, vif);
4770 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
4771 return ret;
4772
4773 /* The station and queue allocation must be done only after the binding
4774 * is done, as otherwise the FW might incorrectly configure its state.
4775 */
4776 return iwl_mvm_add_p2p_bcast_sta(mvm, vif);
4777 }
4778
iwl_mvm_roc(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * channel,int duration,enum ieee80211_roc_type type)4779 static int iwl_mvm_roc(struct ieee80211_hw *hw,
4780 struct ieee80211_vif *vif,
4781 struct ieee80211_channel *channel,
4782 int duration,
4783 enum ieee80211_roc_type type)
4784 {
4785 static const struct iwl_mvm_roc_ops ops = {
4786 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20,
4787 .link = iwl_mvm_roc_link,
4788 };
4789
4790 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops);
4791 }
4792
iwl_mvm_roc_station(struct iwl_mvm * mvm,struct ieee80211_channel * channel,struct ieee80211_vif * vif,int duration)4793 static int iwl_mvm_roc_station(struct iwl_mvm *mvm,
4794 struct ieee80211_channel *channel,
4795 struct ieee80211_vif *vif,
4796 int duration)
4797 {
4798 int ret;
4799 u32 cmd_id = WIDE_ID(MAC_CONF_GROUP, ROC_CMD);
4800 u8 fw_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
4801 IWL_FW_CMD_VER_UNKNOWN);
4802
4803 if (fw_ver == IWL_FW_CMD_VER_UNKNOWN) {
4804 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, vif, duration);
4805 } else if (fw_ver >= 3) {
4806 ret = iwl_mvm_roc_add_cmd(mvm, channel, vif, duration,
4807 ROC_ACTIVITY_HOTSPOT);
4808 } else {
4809 ret = -EOPNOTSUPP;
4810 IWL_ERR(mvm, "ROC command version %d mismatch!\n", fw_ver);
4811 }
4812
4813 return ret;
4814 }
4815
iwl_mvm_roc_p2p(struct iwl_mvm * mvm,struct ieee80211_channel * channel,struct ieee80211_vif * vif,int duration,enum ieee80211_roc_type type)4816 static int iwl_mvm_roc_p2p(struct iwl_mvm *mvm,
4817 struct ieee80211_channel *channel,
4818 struct ieee80211_vif *vif,
4819 int duration,
4820 enum ieee80211_roc_type type)
4821 {
4822 enum iwl_roc_activity activity;
4823 int ret;
4824
4825 lockdep_assert_held(&mvm->mutex);
4826
4827 switch (type) {
4828 case IEEE80211_ROC_TYPE_NORMAL:
4829 activity = ROC_ACTIVITY_P2P_DISC;
4830 break;
4831 case IEEE80211_ROC_TYPE_MGMT_TX:
4832 activity = ROC_ACTIVITY_P2P_NEG;
4833 break;
4834 default:
4835 WARN_ONCE(1, "Got an invalid P2P ROC type\n");
4836 return -EINVAL;
4837 }
4838
4839 ret = iwl_mvm_mld_add_aux_sta(mvm,
4840 iwl_mvm_get_lmac_id(mvm, channel->band));
4841 if (ret)
4842 return ret;
4843
4844 return iwl_mvm_roc_add_cmd(mvm, channel, vif, duration, activity);
4845 }
4846
iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel * channel)4847 static int iwl_mvm_p2p_find_phy_ctxt(struct iwl_mvm *mvm,
4848 struct ieee80211_vif *vif,
4849 struct ieee80211_channel *channel)
4850 {
4851 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4852 struct cfg80211_chan_def chandef;
4853 int i;
4854
4855 lockdep_assert_held(&mvm->mutex);
4856
4857 if (mvmvif->deflink.phy_ctxt &&
4858 channel == mvmvif->deflink.phy_ctxt->channel)
4859 return 0;
4860
4861 /* Try using a PHY context that is already in use */
4862 for (i = 0; i < NUM_PHY_CTX; i++) {
4863 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[i];
4864
4865 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt)
4866 continue;
4867
4868 if (channel == phy_ctxt->channel) {
4869 if (mvmvif->deflink.phy_ctxt)
4870 iwl_mvm_phy_ctxt_unref(mvm,
4871 mvmvif->deflink.phy_ctxt);
4872
4873 mvmvif->deflink.phy_ctxt = phy_ctxt;
4874 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt);
4875 return 0;
4876 }
4877 }
4878
4879 /* We already have a phy_ctxt, but it's not on the right channel */
4880 if (mvmvif->deflink.phy_ctxt)
4881 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);
4882
4883 mvmvif->deflink.phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
4884 if (!mvmvif->deflink.phy_ctxt)
4885 return -ENOSPC;
4886
4887 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
4888
4889 return iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt,
4890 &chandef, NULL, 1, 1);
4891 }
4892
4893 /* Execute the common part for MLD and non-MLD modes */
iwl_mvm_roc_common(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * channel,int duration,enum ieee80211_roc_type type,const struct iwl_mvm_roc_ops * ops)4894 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4895 struct ieee80211_channel *channel, int duration,
4896 enum ieee80211_roc_type type,
4897 const struct iwl_mvm_roc_ops *ops)
4898 {
4899 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4900 struct ieee80211_vif *bss_vif = iwl_mvm_get_bss_vif(mvm);
4901 u32 lmac_id;
4902 int ret;
4903
4904 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
4905 duration, type);
4906
4907 /*
4908 * Flush the done work, just in case it's still pending, so that
4909 * the work it does can complete and we can accept new frames.
4910 */
4911 flush_work(&mvm->roc_done_wk);
4912
4913 if (!IS_ERR_OR_NULL(bss_vif)) {
4914 ret = iwl_mvm_block_esr_sync(mvm, bss_vif,
4915 IWL_MVM_ESR_BLOCKED_ROC);
4916 if (ret)
4917 return ret;
4918 }
4919
4920 guard(mvm)(mvm);
4921
4922 switch (vif->type) {
4923 case NL80211_IFTYPE_STATION:
4924 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band);
4925
4926 /* Use aux roc framework (HS20) */
4927 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id);
4928 if (!ret)
4929 ret = iwl_mvm_roc_station(mvm, channel, vif, duration);
4930 return ret;
4931 case NL80211_IFTYPE_P2P_DEVICE:
4932 /* handle below */
4933 break;
4934 default:
4935 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type);
4936 return -EINVAL;
4937 }
4938
4939 if (iwl_mvm_has_p2p_over_aux(mvm)) {
4940 ret = iwl_mvm_roc_p2p(mvm, channel, vif, duration, type);
4941 return ret;
4942 }
4943
4944 ret = iwl_mvm_p2p_find_phy_ctxt(mvm, vif, channel);
4945 if (ret)
4946 return ret;
4947
4948 ret = ops->link(mvm, vif);
4949 if (ret)
4950 return ret;
4951
4952 return iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
4953 }
4954
iwl_mvm_cancel_roc(struct ieee80211_hw * hw,struct ieee80211_vif * vif)4955 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw,
4956 struct ieee80211_vif *vif)
4957 {
4958 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4959
4960 IWL_DEBUG_MAC80211(mvm, "enter\n");
4961
4962 iwl_mvm_stop_roc(mvm, vif);
4963
4964 IWL_DEBUG_MAC80211(mvm, "leave\n");
4965 return 0;
4966 }
4967
4968 struct iwl_mvm_ftm_responder_iter_data {
4969 bool responder;
4970 struct ieee80211_chanctx_conf *ctx;
4971 };
4972
iwl_mvm_ftm_responder_chanctx_iter(void * _data,u8 * mac,struct ieee80211_vif * vif)4973 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac,
4974 struct ieee80211_vif *vif)
4975 {
4976 struct iwl_mvm_ftm_responder_iter_data *data = _data;
4977
4978 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx &&
4979 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params)
4980 data->responder = true;
4981 }
4982
iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm * mvm,struct ieee80211_chanctx_conf * ctx)4983 bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm,
4984 struct ieee80211_chanctx_conf *ctx)
4985 {
4986 struct iwl_mvm_ftm_responder_iter_data data = {
4987 .responder = false,
4988 .ctx = ctx,
4989 };
4990
4991 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
4992 IEEE80211_IFACE_ITER_NORMAL,
4993 iwl_mvm_ftm_responder_chanctx_iter,
4994 &data);
4995 return data.responder;
4996 }
4997
__iwl_mvm_add_chanctx(struct iwl_mvm * mvm,struct ieee80211_chanctx_conf * ctx)4998 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
4999 struct ieee80211_chanctx_conf *ctx)
5000 {
5001 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
5002 struct iwl_mvm_phy_ctxt *phy_ctxt;
5003 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx);
5004 int ret;
5005
5006 lockdep_assert_held(&mvm->mutex);
5007
5008 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
5009
5010 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
5011 if (!phy_ctxt) {
5012 ret = -ENOSPC;
5013 goto out;
5014 }
5015
5016 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, def, &ctx->ap,
5017 ctx->rx_chains_static,
5018 ctx->rx_chains_dynamic);
5019 if (ret) {
5020 IWL_ERR(mvm, "Failed to add PHY context\n");
5021 goto out;
5022 }
5023
5024 *phy_ctxt_id = phy_ctxt->id;
5025 out:
5026 return ret;
5027 }
5028
iwl_mvm_add_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)5029 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
5030 struct ieee80211_chanctx_conf *ctx)
5031 {
5032 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5033
5034 guard(mvm)(mvm);
5035 return __iwl_mvm_add_chanctx(mvm, ctx);
5036 }
5037
__iwl_mvm_remove_chanctx(struct iwl_mvm * mvm,struct ieee80211_chanctx_conf * ctx)5038 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
5039 struct ieee80211_chanctx_conf *ctx)
5040 {
5041 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
5042 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
5043
5044 lockdep_assert_held(&mvm->mutex);
5045
5046 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
5047 }
5048
iwl_mvm_remove_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)5049 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
5050 struct ieee80211_chanctx_conf *ctx)
5051 {
5052 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5053
5054 guard(mvm)(mvm);
5055 __iwl_mvm_remove_chanctx(mvm, ctx);
5056 }
5057
iwl_mvm_change_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx,u32 changed)5058 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
5059 struct ieee80211_chanctx_conf *ctx, u32 changed)
5060 {
5061 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5062 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
5063 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
5064 struct cfg80211_chan_def *def = iwl_mvm_chanctx_def(mvm, ctx);
5065
5066 if (WARN_ONCE((phy_ctxt->ref > 1) &&
5067 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
5068 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
5069 IEEE80211_CHANCTX_CHANGE_RADAR |
5070 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
5071 "Cannot change PHY. Ref=%d, changed=0x%X\n",
5072 phy_ctxt->ref, changed))
5073 return;
5074
5075 guard(mvm)(mvm);
5076
5077 /* we are only changing the min_width, may be a noop */
5078 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) {
5079 if (phy_ctxt->width == def->width)
5080 return;
5081
5082 /* we are just toggling between 20_NOHT and 20 */
5083 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&
5084 def->width <= NL80211_CHAN_WIDTH_20)
5085 return;
5086 }
5087
5088 iwl_mvm_bt_coex_vif_change(mvm);
5089 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def, &ctx->ap,
5090 ctx->rx_chains_static,
5091 ctx->rx_chains_dynamic);
5092 }
5093
5094 /*
5095 * This function executes the common part for MLD and non-MLD modes.
5096 *
5097 * Returns true if we're done assigning the chanctx
5098 * (either on failure or success)
5099 */
5100 static bool
__iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_chanctx_conf * ctx,bool switching_chanctx,int * ret)5101 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm,
5102 struct ieee80211_vif *vif,
5103 struct ieee80211_chanctx_conf *ctx,
5104 bool switching_chanctx, int *ret)
5105 {
5106 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
5107 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
5108 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5109
5110 lockdep_assert_held(&mvm->mutex);
5111
5112 mvmvif->deflink.phy_ctxt = phy_ctxt;
5113
5114 switch (vif->type) {
5115 case NL80211_IFTYPE_AP:
5116 /* only needed if we're switching chanctx (i.e. during CSA) */
5117 if (switching_chanctx) {
5118 mvmvif->ap_ibss_active = true;
5119 break;
5120 }
5121 fallthrough;
5122 case NL80211_IFTYPE_ADHOC:
5123 /*
5124 * The AP binding flow is handled as part of the start_ap flow
5125 * (in bss_info_changed), similarly for IBSS.
5126 */
5127 *ret = 0;
5128 return true;
5129 case NL80211_IFTYPE_STATION:
5130 break;
5131 case NL80211_IFTYPE_MONITOR:
5132 /* always disable PS when a monitor interface is active */
5133 mvmvif->ps_disabled = true;
5134 break;
5135 default:
5136 *ret = -EINVAL;
5137 return true;
5138 }
5139 return false;
5140 }
5141
__iwl_mvm_assign_vif_chanctx(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx,bool switching_chanctx)5142 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
5143 struct ieee80211_vif *vif,
5144 struct ieee80211_bss_conf *link_conf,
5145 struct ieee80211_chanctx_conf *ctx,
5146 bool switching_chanctx)
5147 {
5148 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5149 int ret;
5150
5151 if (WARN_ON(!link_conf))
5152 return -EINVAL;
5153
5154 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx,
5155 switching_chanctx, &ret))
5156 goto out;
5157
5158 ret = iwl_mvm_binding_add_vif(mvm, vif);
5159 if (ret)
5160 goto out;
5161
5162 /*
5163 * Power state must be updated before quotas,
5164 * otherwise fw will complain.
5165 */
5166 iwl_mvm_power_update_mac(mvm);
5167
5168 /* Setting the quota at this stage is only required for monitor
5169 * interfaces. For the other types, the bss_info changed flow
5170 * will handle quota settings.
5171 */
5172 if (vif->type == NL80211_IFTYPE_MONITOR) {
5173 mvmvif->monitor_active = true;
5174 ret = iwl_mvm_update_quotas(mvm, false, NULL);
5175 if (ret)
5176 goto out_remove_binding;
5177
5178 ret = iwl_mvm_add_snif_sta(mvm, vif);
5179 if (ret)
5180 goto out_remove_binding;
5181
5182 }
5183
5184 /* Handle binding during CSA */
5185 if (vif->type == NL80211_IFTYPE_AP) {
5186 iwl_mvm_update_quotas(mvm, false, NULL);
5187 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
5188 }
5189
5190 if (vif->type == NL80211_IFTYPE_STATION) {
5191 if (!switching_chanctx) {
5192 mvmvif->csa_bcn_pending = false;
5193 goto out;
5194 }
5195
5196 mvmvif->csa_bcn_pending = true;
5197
5198 if (!fw_has_capa(&mvm->fw->ucode_capa,
5199 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
5200 u32 duration = 5 * vif->bss_conf.beacon_int;
5201
5202 /* Protect the session to make sure we hear the first
5203 * beacon on the new channel.
5204 */
5205 iwl_mvm_protect_session(mvm, vif, duration, duration,
5206 vif->bss_conf.beacon_int / 2,
5207 true);
5208 }
5209
5210 iwl_mvm_update_quotas(mvm, false, NULL);
5211
5212 iwl_mvm_send_ap_tx_power_constraint_cmd(mvm, vif,
5213 link_conf,
5214 false);
5215 }
5216
5217 goto out;
5218
5219 out_remove_binding:
5220 iwl_mvm_binding_remove_vif(mvm, vif);
5221 iwl_mvm_power_update_mac(mvm);
5222 out:
5223 if (ret)
5224 mvmvif->deflink.phy_ctxt = NULL;
5225 return ret;
5226 }
5227
iwl_mvm_assign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)5228 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
5229 struct ieee80211_vif *vif,
5230 struct ieee80211_bss_conf *link_conf,
5231 struct ieee80211_chanctx_conf *ctx)
5232 {
5233 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5234
5235 guard(mvm)(mvm);
5236 return __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false);
5237 }
5238
5239 /*
5240 * This function executes the common part for MLD and non-MLD modes.
5241 *
5242 * Returns if chanctx unassign chanctx is done
5243 * (either on failure or success)
5244 */
__iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool switching_chanctx)5245 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm,
5246 struct ieee80211_vif *vif,
5247 bool switching_chanctx)
5248 {
5249 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5250
5251 lockdep_assert_held(&mvm->mutex);
5252 iwl_mvm_remove_time_event(mvm, mvmvif,
5253 &mvmvif->time_event_data);
5254
5255 switch (vif->type) {
5256 case NL80211_IFTYPE_ADHOC:
5257 return true;
5258 case NL80211_IFTYPE_MONITOR:
5259 mvmvif->monitor_active = false;
5260 mvmvif->ps_disabled = false;
5261 break;
5262 case NL80211_IFTYPE_AP:
5263 /* This part is triggered only during CSA */
5264 if (!switching_chanctx || !mvmvif->ap_ibss_active)
5265 return true;
5266
5267 mvmvif->csa_countdown = false;
5268
5269 /* Set CS bit on all the stations */
5270 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
5271
5272 /* Save blocked iface, the timeout is set on the next beacon */
5273 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
5274
5275 mvmvif->ap_ibss_active = false;
5276 break;
5277 default:
5278 break;
5279 }
5280 return false;
5281 }
5282
__iwl_mvm_unassign_vif_chanctx(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx,bool switching_chanctx)5283 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
5284 struct ieee80211_vif *vif,
5285 struct ieee80211_bss_conf *link_conf,
5286 struct ieee80211_chanctx_conf *ctx,
5287 bool switching_chanctx)
5288 {
5289 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5290 struct ieee80211_vif *disabled_vif = NULL;
5291
5292 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx))
5293 goto out;
5294
5295 if (vif->type == NL80211_IFTYPE_MONITOR)
5296 iwl_mvm_rm_snif_sta(mvm, vif);
5297
5298
5299 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) {
5300 disabled_vif = vif;
5301 if (!fw_has_capa(&mvm->fw->ucode_capa,
5302 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
5303 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
5304 }
5305
5306 iwl_mvm_update_quotas(mvm, false, disabled_vif);
5307 iwl_mvm_binding_remove_vif(mvm, vif);
5308
5309 out:
5310 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) &&
5311 switching_chanctx)
5312 return;
5313 mvmvif->deflink.phy_ctxt = NULL;
5314 iwl_mvm_power_update_mac(mvm);
5315 }
5316
iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)5317 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
5318 struct ieee80211_vif *vif,
5319 struct ieee80211_bss_conf *link_conf,
5320 struct ieee80211_chanctx_conf *ctx)
5321 {
5322 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5323
5324 guard(mvm)(mvm);
5325 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false);
5326 }
5327
5328 static int
iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm * mvm,struct ieee80211_vif_chanctx_switch * vifs,const struct iwl_mvm_switch_vif_chanctx_ops * ops)5329 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
5330 struct ieee80211_vif_chanctx_switch *vifs,
5331 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5332 {
5333 int ret;
5334
5335 guard(mvm)(mvm);
5336 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5337 vifs[0].old_ctx, true);
5338 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
5339
5340 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
5341 if (ret) {
5342 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
5343 goto out_reassign;
5344 }
5345
5346 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5347 vifs[0].new_ctx, true);
5348 if (ret) {
5349 IWL_ERR(mvm,
5350 "failed to assign new_ctx during channel switch\n");
5351 goto out_remove;
5352 }
5353
5354 /* we don't support TDLS during DCM - can be caused by channel switch */
5355 if (iwl_mvm_phy_ctx_count(mvm) > 1)
5356 iwl_mvm_teardown_tdls_peers(mvm);
5357
5358 return 0;
5359
5360 out_remove:
5361 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
5362
5363 out_reassign:
5364 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
5365 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
5366 goto out_restart;
5367 }
5368
5369 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5370 vifs[0].old_ctx, true)) {
5371 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
5372 goto out_restart;
5373 }
5374
5375 return ret;
5376
5377 out_restart:
5378 /* things keep failing, better restart the hw */
5379 iwl_mvm_nic_restart(mvm, false);
5380 return ret;
5381 }
5382
5383 static int
iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm * mvm,struct ieee80211_vif_chanctx_switch * vifs,const struct iwl_mvm_switch_vif_chanctx_ops * ops)5384 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
5385 struct ieee80211_vif_chanctx_switch *vifs,
5386 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5387 {
5388 int ret;
5389
5390 guard(mvm)(mvm);
5391 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5392 vifs[0].old_ctx, true);
5393
5394 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5395 vifs[0].new_ctx, true);
5396 if (ret) {
5397 IWL_ERR(mvm,
5398 "failed to assign new_ctx during channel switch\n");
5399 goto out_reassign;
5400 }
5401
5402 return 0;
5403
5404 out_reassign:
5405 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5406 vifs[0].old_ctx, true)) {
5407 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
5408 goto out_restart;
5409 }
5410
5411 return ret;
5412
5413 out_restart:
5414 /* things keep failing, better restart the hw */
5415 iwl_mvm_nic_restart(mvm, false);
5416 return ret;
5417 }
5418
5419 /* Execute the common part for both MLD and non-MLD modes */
5420 int
iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw * hw,struct ieee80211_vif_chanctx_switch * vifs,int n_vifs,enum ieee80211_chanctx_switch_mode mode,const struct iwl_mvm_switch_vif_chanctx_ops * ops)5421 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw,
5422 struct ieee80211_vif_chanctx_switch *vifs,
5423 int n_vifs,
5424 enum ieee80211_chanctx_switch_mode mode,
5425 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5426 {
5427 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5428 int ret;
5429
5430 /* we only support a single-vif right now */
5431 if (n_vifs > 1)
5432 return -EOPNOTSUPP;
5433
5434 switch (mode) {
5435 case CHANCTX_SWMODE_SWAP_CONTEXTS:
5436 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops);
5437 break;
5438 case CHANCTX_SWMODE_REASSIGN_VIF:
5439 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops);
5440 break;
5441 default:
5442 ret = -EOPNOTSUPP;
5443 break;
5444 }
5445
5446 return ret;
5447 }
5448
iwl_mvm_switch_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif_chanctx_switch * vifs,int n_vifs,enum ieee80211_chanctx_switch_mode mode)5449 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
5450 struct ieee80211_vif_chanctx_switch *vifs,
5451 int n_vifs,
5452 enum ieee80211_chanctx_switch_mode mode)
5453 {
5454 static const struct iwl_mvm_switch_vif_chanctx_ops ops = {
5455 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx,
5456 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx,
5457 };
5458
5459 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops);
5460 }
5461
iwl_mvm_tx_last_beacon(struct ieee80211_hw * hw)5462 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
5463 {
5464 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5465
5466 return mvm->ibss_manager;
5467 }
5468
iwl_mvm_set_tim(struct ieee80211_hw * hw,struct ieee80211_sta * sta,bool set)5469 static int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
5470 bool set)
5471 {
5472 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5473 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
5474
5475 if (!mvm_sta || !mvm_sta->vif) {
5476 IWL_ERR(mvm, "Station is not associated to a vif\n");
5477 return -EINVAL;
5478 }
5479
5480 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif,
5481 &mvm_sta->vif->bss_conf);
5482 }
5483
5484 #ifdef CONFIG_NL80211_TESTMODE
5485 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
5486 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
5487 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
5488 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
5489 };
5490
__iwl_mvm_mac_testmode_cmd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,void * data,int len)5491 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
5492 struct ieee80211_vif *vif,
5493 void *data, int len)
5494 {
5495 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
5496 int err;
5497 u32 noa_duration;
5498
5499 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len,
5500 iwl_mvm_tm_policy, NULL);
5501 if (err)
5502 return err;
5503
5504 if (!tb[IWL_MVM_TM_ATTR_CMD])
5505 return -EINVAL;
5506
5507 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
5508 case IWL_MVM_TM_CMD_SET_NOA:
5509 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
5510 !vif->bss_conf.enable_beacon ||
5511 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
5512 return -EINVAL;
5513
5514 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
5515 if (noa_duration >= vif->bss_conf.beacon_int)
5516 return -EINVAL;
5517
5518 mvm->noa_duration = noa_duration;
5519 mvm->noa_vif = vif;
5520
5521 return iwl_mvm_update_quotas(mvm, true, NULL);
5522 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
5523 /* must be associated client vif - ignore authorized */
5524 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
5525 !vif->cfg.assoc || !vif->bss_conf.dtim_period ||
5526 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
5527 return -EINVAL;
5528
5529 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
5530 return iwl_mvm_enable_beacon_filter(mvm, vif);
5531 return iwl_mvm_disable_beacon_filter(mvm, vif);
5532 }
5533
5534 return -EOPNOTSUPP;
5535 }
5536
iwl_mvm_mac_testmode_cmd(struct ieee80211_hw * hw,struct ieee80211_vif * vif,void * data,int len)5537 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
5538 struct ieee80211_vif *vif,
5539 void *data, int len)
5540 {
5541 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5542
5543 guard(mvm)(mvm);
5544 return __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
5545 }
5546 #endif
5547
iwl_mvm_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5548 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5549 struct ieee80211_channel_switch *chsw)
5550 {
5551 /* By implementing this operation, we prevent mac80211 from
5552 * starting its own channel switch timer, so that we can call
5553 * ieee80211_chswitch_done() ourselves at the right time
5554 * (which is when the absence time event starts).
5555 */
5556
5557 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
5558 "dummy channel switch op\n");
5559 }
5560
iwl_mvm_schedule_client_csa(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5561 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm,
5562 struct ieee80211_vif *vif,
5563 struct ieee80211_channel_switch *chsw)
5564 {
5565 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5566 struct iwl_chan_switch_te_cmd cmd = {
5567 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
5568 mvmvif->color)),
5569 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
5570 .tsf = cpu_to_le32(chsw->timestamp),
5571 .cs_count = chsw->count,
5572 .cs_mode = chsw->block_tx,
5573 };
5574
5575 lockdep_assert_held(&mvm->mutex);
5576
5577 if (chsw->delay)
5578 cmd.cs_delayed_bcn_count =
5579 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int);
5580
5581 return iwl_mvm_send_cmd_pdu(mvm,
5582 WIDE_ID(MAC_CONF_GROUP,
5583 CHANNEL_SWITCH_TIME_EVENT_CMD),
5584 0, sizeof(cmd), &cmd);
5585 }
5586
iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5587 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm,
5588 struct ieee80211_vif *vif,
5589 struct ieee80211_channel_switch *chsw)
5590 {
5591 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5592 u32 apply_time;
5593
5594 /* Schedule the time event to a bit before beacon 1,
5595 * to make sure we're in the new channel when the
5596 * GO/AP arrives. In case count <= 1 immediately schedule the
5597 * TE (this might result with some packet loss or connection
5598 * loss).
5599 */
5600 if (chsw->count <= 1)
5601 apply_time = 0;
5602 else
5603 apply_time = chsw->device_timestamp +
5604 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
5605 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
5606
5607 if (chsw->block_tx)
5608 iwl_mvm_csa_client_absent(mvm, vif);
5609
5610 if (mvmvif->bf_enabled) {
5611 int ret = iwl_mvm_disable_beacon_filter(mvm, vif);
5612
5613 if (ret)
5614 return ret;
5615 }
5616
5617 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
5618 apply_time);
5619
5620 return 0;
5621 }
5622
iwl_mvm_csa_block_txqs(void * data,struct ieee80211_sta * sta)5623 static void iwl_mvm_csa_block_txqs(void *data, struct ieee80211_sta *sta)
5624 {
5625 int i;
5626
5627 for (i = 0; i < ARRAY_SIZE(sta->txq); i++) {
5628 struct iwl_mvm_txq *mvmtxq =
5629 iwl_mvm_txq_from_mac80211(sta->txq[i]);
5630
5631 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);
5632 }
5633 }
5634
5635 #define IWL_MAX_CSA_BLOCK_TX 1500
iwl_mvm_pre_channel_switch(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5636 int iwl_mvm_pre_channel_switch(struct iwl_mvm *mvm,
5637 struct ieee80211_vif *vif,
5638 struct ieee80211_channel_switch *chsw)
5639 {
5640 struct ieee80211_vif *csa_vif;
5641 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5642 struct iwl_mvm_txq *mvmtxq;
5643 int ret;
5644
5645 lockdep_assert_held(&mvm->mutex);
5646
5647 mvmvif->csa_failed = false;
5648 mvmvif->csa_blocks_tx = false;
5649
5650 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
5651 chsw->chandef.center_freq1);
5652
5653 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
5654 ieee80211_vif_to_wdev(vif),
5655 FW_DBG_TRIGGER_CHANNEL_SWITCH);
5656
5657 switch (vif->type) {
5658 case NL80211_IFTYPE_AP:
5659 csa_vif =
5660 rcu_dereference_protected(mvm->csa_vif,
5661 lockdep_is_held(&mvm->mutex));
5662 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active,
5663 "Another CSA is already in progress"))
5664 return -EBUSY;
5665
5666 /* we still didn't unblock tx. prevent new CS meanwhile */
5667 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
5668 lockdep_is_held(&mvm->mutex)))
5669 return -EBUSY;
5670
5671 rcu_assign_pointer(mvm->csa_vif, vif);
5672
5673 if (WARN_ONCE(mvmvif->csa_countdown,
5674 "Previous CSA countdown didn't complete"))
5675 return -EBUSY;
5676
5677 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
5678
5679 if (!chsw->block_tx)
5680 break;
5681 /* don't need blocking in driver otherwise - mac80211 will do */
5682 if (!ieee80211_hw_check(mvm->hw, HANDLES_QUIET_CSA))
5683 break;
5684
5685 mvmvif->csa_blocks_tx = true;
5686 mvmtxq = iwl_mvm_txq_from_mac80211(vif->txq);
5687 set_bit(IWL_MVM_TXQ_STATE_STOP_AP_CSA, &mvmtxq->state);
5688 ieee80211_iterate_stations_atomic(mvm->hw,
5689 iwl_mvm_csa_block_txqs,
5690 NULL);
5691 break;
5692 case NL80211_IFTYPE_STATION:
5693 mvmvif->csa_blocks_tx = chsw->block_tx;
5694
5695 /*
5696 * In the new flow FW is in charge of timing the switch so there
5697 * is no need for all of this
5698 */
5699 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
5700 CHANNEL_SWITCH_ERROR_NOTIF,
5701 0))
5702 break;
5703
5704 /*
5705 * We haven't configured the firmware to be associated yet since
5706 * we don't know the dtim period. In this case, the firmware can't
5707 * track the beacons.
5708 */
5709 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period)
5710 return -EBUSY;
5711
5712 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX &&
5713 hweight16(vif->valid_links) <= 1)
5714 schedule_delayed_work(&mvmvif->csa_work, 0);
5715
5716 if (chsw->block_tx) {
5717 /*
5718 * In case of undetermined / long time with immediate
5719 * quiet monitor status to gracefully disconnect
5720 */
5721 if (!chsw->count ||
5722 chsw->count * vif->bss_conf.beacon_int >
5723 IWL_MAX_CSA_BLOCK_TX)
5724 schedule_delayed_work(&mvmvif->csa_work,
5725 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX));
5726 }
5727
5728 if (!fw_has_capa(&mvm->fw->ucode_capa,
5729 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
5730 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw);
5731 if (ret)
5732 return ret;
5733 } else {
5734 iwl_mvm_schedule_client_csa(mvm, vif, chsw);
5735 }
5736
5737 mvmvif->csa_count = chsw->count;
5738 mvmvif->csa_misbehave = false;
5739 break;
5740 default:
5741 break;
5742 }
5743
5744 mvmvif->ps_disabled = true;
5745
5746 ret = iwl_mvm_power_update_ps(mvm);
5747 if (ret)
5748 return ret;
5749
5750 /* we won't be on this channel any longer */
5751 iwl_mvm_teardown_tdls_peers(mvm);
5752
5753 return ret;
5754 }
5755
iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5756 static int iwl_mvm_mac_pre_channel_switch(struct ieee80211_hw *hw,
5757 struct ieee80211_vif *vif,
5758 struct ieee80211_channel_switch *chsw)
5759 {
5760 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5761
5762 guard(mvm)(mvm);
5763 return iwl_mvm_pre_channel_switch(mvm, vif, chsw);
5764 }
5765
iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5766 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw,
5767 struct ieee80211_vif *vif,
5768 struct ieee80211_channel_switch *chsw)
5769 {
5770 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5771 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5772 struct iwl_chan_switch_te_cmd cmd = {
5773 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
5774 mvmvif->color)),
5775 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY),
5776 .tsf = cpu_to_le32(chsw->timestamp),
5777 .cs_count = chsw->count,
5778 .cs_mode = chsw->block_tx,
5779 };
5780
5781 /*
5782 * In the new flow FW is in charge of timing the switch so there is no
5783 * need for all of this
5784 */
5785 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
5786 CHANNEL_SWITCH_ERROR_NOTIF, 0))
5787 return;
5788
5789 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY))
5790 return;
5791
5792 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n",
5793 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx);
5794
5795 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) {
5796 if (mvmvif->csa_misbehave) {
5797 struct ieee80211_bss_conf *link_conf;
5798
5799 /* Second time, give up on this AP*/
5800
5801 link_conf = wiphy_dereference(hw->wiphy,
5802 vif->link_conf[chsw->link_id]);
5803 if (WARN_ON(!link_conf))
5804 return;
5805
5806 iwl_mvm_abort_channel_switch(hw, vif, link_conf);
5807 ieee80211_chswitch_done(vif, false, 0);
5808 mvmvif->csa_misbehave = false;
5809 return;
5810 }
5811 mvmvif->csa_misbehave = true;
5812 }
5813 mvmvif->csa_count = chsw->count;
5814
5815 guard(mvm)(mvm);
5816 if (mvmvif->csa_failed)
5817 return;
5818
5819 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
5820 WIDE_ID(MAC_CONF_GROUP,
5821 CHANNEL_SWITCH_TIME_EVENT_CMD),
5822 0, sizeof(cmd), &cmd));
5823 }
5824
iwl_mvm_flush_no_vif(struct iwl_mvm * mvm,u32 queues,bool drop)5825 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
5826 {
5827 int i;
5828
5829 if (!iwl_mvm_has_new_tx_api(mvm)) {
5830 /* we can't ask the firmware anything if it is dead */
5831 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
5832 &mvm->status))
5833 return;
5834 if (drop) {
5835 guard(mvm)(mvm);
5836 iwl_mvm_flush_tx_path(mvm,
5837 iwl_mvm_flushable_queues(mvm) & queues);
5838 } else {
5839 iwl_trans_wait_tx_queues_empty(mvm->trans, queues);
5840 }
5841 return;
5842 }
5843
5844 guard(mvm)(mvm);
5845 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
5846 struct ieee80211_sta *sta;
5847
5848 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
5849 lockdep_is_held(&mvm->mutex));
5850 if (IS_ERR_OR_NULL(sta))
5851 continue;
5852
5853 if (drop)
5854 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF);
5855 else
5856 iwl_mvm_wait_sta_queues_empty(mvm,
5857 iwl_mvm_sta_from_mac80211(sta));
5858 }
5859 }
5860
iwl_mvm_mac_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)5861 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5862 u32 queues, bool drop)
5863 {
5864 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5865 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5866 struct iwl_mvm_sta *mvmsta;
5867 struct ieee80211_sta *sta;
5868 bool ap_sta_done = false;
5869 int i;
5870 u32 msk = 0;
5871
5872 if (!vif) {
5873 iwl_mvm_flush_no_vif(mvm, queues, drop);
5874 return;
5875 }
5876
5877 if (!drop && hweight16(vif->active_links) <= 1) {
5878 int link_id = vif->active_links ? __ffs(vif->active_links) : 0;
5879 struct ieee80211_bss_conf *link_conf;
5880
5881 link_conf = wiphy_dereference(hw->wiphy,
5882 vif->link_conf[link_id]);
5883 if (WARN_ON(!link_conf))
5884 return;
5885 if (link_conf->csa_active && mvmvif->csa_blocks_tx)
5886 drop = true;
5887 }
5888
5889 /* Make sure we're done with the deferred traffic before flushing */
5890 flush_work(&mvm->add_stream_wk);
5891
5892 mutex_lock(&mvm->mutex);
5893
5894 /* flush the AP-station and all TDLS peers */
5895 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
5896 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
5897 lockdep_is_held(&mvm->mutex));
5898 if (IS_ERR_OR_NULL(sta))
5899 continue;
5900
5901 mvmsta = iwl_mvm_sta_from_mac80211(sta);
5902 if (mvmsta->vif != vif)
5903 continue;
5904
5905 if (sta == mvmvif->ap_sta) {
5906 if (ap_sta_done)
5907 continue;
5908 ap_sta_done = true;
5909 }
5910
5911 if (drop) {
5912 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id,
5913 mvmsta->tfd_queue_msk))
5914 IWL_ERR(mvm, "flush request fail\n");
5915 } else {
5916 if (iwl_mvm_has_new_tx_api(mvm))
5917 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
5918 else /* only used for !iwl_mvm_has_new_tx_api() below */
5919 msk |= mvmsta->tfd_queue_msk;
5920 }
5921 }
5922
5923 mutex_unlock(&mvm->mutex);
5924
5925 /* this can take a while, and we may need/want other operations
5926 * to succeed while doing this, so do it without the mutex held
5927 * If the firmware is dead, this can't work...
5928 */
5929 if (!drop && !iwl_mvm_has_new_tx_api(mvm) &&
5930 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
5931 &mvm->status))
5932 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
5933 }
5934
iwl_mvm_mac_flush_sta(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)5935 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5936 struct ieee80211_sta *sta)
5937 {
5938 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
5939 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5940 struct iwl_mvm_link_sta *mvm_link_sta;
5941 struct ieee80211_link_sta *link_sta;
5942 int link_id;
5943
5944 guard(mvm)(mvm);
5945 for_each_sta_active_link(vif, sta, link_sta, link_id) {
5946 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id],
5947 lockdep_is_held(&mvm->mutex));
5948 if (!mvm_link_sta)
5949 continue;
5950
5951 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id,
5952 mvmsta->tfd_queue_msk))
5953 IWL_ERR(mvm, "flush request fail\n");
5954 }
5955 }
5956
iwl_mvm_mac_get_acs_survey(struct iwl_mvm * mvm,int idx,struct survey_info * survey)5957 static int iwl_mvm_mac_get_acs_survey(struct iwl_mvm *mvm, int idx,
5958 struct survey_info *survey)
5959 {
5960 int chan_idx;
5961 enum nl80211_band band;
5962 int ret;
5963
5964 mutex_lock(&mvm->mutex);
5965
5966 if (!mvm->acs_survey) {
5967 ret = -ENOENT;
5968 goto out;
5969 }
5970
5971 /* Find and return the next entry that has a non-zero active time */
5972 for (band = 0; band < NUM_NL80211_BANDS; band++) {
5973 struct ieee80211_supported_band *sband =
5974 mvm->hw->wiphy->bands[band];
5975
5976 if (!sband)
5977 continue;
5978
5979 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) {
5980 struct iwl_mvm_acs_survey_channel *info =
5981 &mvm->acs_survey->bands[band][chan_idx];
5982
5983 if (!info->time)
5984 continue;
5985
5986 /* Found (the next) channel to report */
5987 survey->channel = &sband->channels[chan_idx];
5988 survey->filled = SURVEY_INFO_TIME |
5989 SURVEY_INFO_TIME_BUSY |
5990 SURVEY_INFO_TIME_RX |
5991 SURVEY_INFO_TIME_TX;
5992 survey->time = info->time;
5993 survey->time_busy = info->time_busy;
5994 survey->time_rx = info->time_rx;
5995 survey->time_tx = info->time_tx;
5996 survey->noise = info->noise;
5997 if (survey->noise < 0)
5998 survey->filled |= SURVEY_INFO_NOISE_DBM;
5999
6000 /* Clear time so that channel is only reported once */
6001 info->time = 0;
6002
6003 ret = 0;
6004 goto out;
6005 }
6006 }
6007
6008 ret = -ENOENT;
6009
6010 out:
6011 mutex_unlock(&mvm->mutex);
6012
6013 return ret;
6014 }
6015
iwl_mvm_mac_get_survey(struct ieee80211_hw * hw,int idx,struct survey_info * survey)6016 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
6017 struct survey_info *survey)
6018 {
6019 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6020 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
6021 WIDE_ID(SYSTEM_GROUP,
6022 SYSTEM_STATISTICS_CMD),
6023 IWL_FW_CMD_VER_UNKNOWN);
6024
6025 memset(survey, 0, sizeof(*survey));
6026
6027 if (!fw_has_capa(&mvm->fw->ucode_capa,
6028 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
6029 return -ENOENT;
6030
6031 /*
6032 * Return the beacon stats at index zero and pass on following indices
6033 * to the function returning the full survey, most likely for ACS
6034 * (Automatic Channel Selection).
6035 */
6036 if (idx > 0)
6037 return iwl_mvm_mac_get_acs_survey(mvm, idx - 1, survey);
6038
6039 guard(mvm)(mvm);
6040
6041 if (iwl_mvm_firmware_running(mvm)) {
6042 int ret = iwl_mvm_request_statistics(mvm, false);
6043
6044 if (ret)
6045 return ret;
6046 }
6047
6048 survey->filled = SURVEY_INFO_TIME_RX |
6049 SURVEY_INFO_TIME_TX;
6050
6051 survey->time_rx = mvm->accu_radio_stats.rx_time +
6052 mvm->radio_stats.rx_time;
6053 do_div(survey->time_rx, USEC_PER_MSEC);
6054
6055 survey->time_tx = mvm->accu_radio_stats.tx_time +
6056 mvm->radio_stats.tx_time;
6057 do_div(survey->time_tx, USEC_PER_MSEC);
6058
6059 /* the new fw api doesn't support the following fields */
6060 if (cmd_ver != IWL_FW_CMD_VER_UNKNOWN)
6061 return 0;
6062
6063 survey->filled |= SURVEY_INFO_TIME |
6064 SURVEY_INFO_TIME_SCAN;
6065 survey->time = mvm->accu_radio_stats.on_time_rf +
6066 mvm->radio_stats.on_time_rf;
6067 do_div(survey->time, USEC_PER_MSEC);
6068
6069 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
6070 mvm->radio_stats.on_time_scan;
6071 do_div(survey->time_scan, USEC_PER_MSEC);
6072
6073 return 0;
6074 }
6075
iwl_mvm_set_sta_rate(u32 rate_n_flags,struct rate_info * rinfo)6076 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo)
6077 {
6078 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
6079 u32 gi_ltf;
6080
6081 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
6082 case RATE_MCS_CHAN_WIDTH_20:
6083 rinfo->bw = RATE_INFO_BW_20;
6084 break;
6085 case RATE_MCS_CHAN_WIDTH_40:
6086 rinfo->bw = RATE_INFO_BW_40;
6087 break;
6088 case RATE_MCS_CHAN_WIDTH_80:
6089 rinfo->bw = RATE_INFO_BW_80;
6090 break;
6091 case RATE_MCS_CHAN_WIDTH_160:
6092 rinfo->bw = RATE_INFO_BW_160;
6093 break;
6094 case RATE_MCS_CHAN_WIDTH_320:
6095 rinfo->bw = RATE_INFO_BW_320;
6096 break;
6097 }
6098
6099 if (format == RATE_MCS_CCK_MSK ||
6100 format == RATE_MCS_LEGACY_OFDM_MSK) {
6101 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK);
6102
6103 /* add the offset needed to get to the legacy ofdm indices */
6104 if (format == RATE_MCS_LEGACY_OFDM_MSK)
6105 rate += IWL_FIRST_OFDM_RATE;
6106
6107 switch (rate) {
6108 case IWL_RATE_1M_INDEX:
6109 rinfo->legacy = 10;
6110 break;
6111 case IWL_RATE_2M_INDEX:
6112 rinfo->legacy = 20;
6113 break;
6114 case IWL_RATE_5M_INDEX:
6115 rinfo->legacy = 55;
6116 break;
6117 case IWL_RATE_11M_INDEX:
6118 rinfo->legacy = 110;
6119 break;
6120 case IWL_RATE_6M_INDEX:
6121 rinfo->legacy = 60;
6122 break;
6123 case IWL_RATE_9M_INDEX:
6124 rinfo->legacy = 90;
6125 break;
6126 case IWL_RATE_12M_INDEX:
6127 rinfo->legacy = 120;
6128 break;
6129 case IWL_RATE_18M_INDEX:
6130 rinfo->legacy = 180;
6131 break;
6132 case IWL_RATE_24M_INDEX:
6133 rinfo->legacy = 240;
6134 break;
6135 case IWL_RATE_36M_INDEX:
6136 rinfo->legacy = 360;
6137 break;
6138 case IWL_RATE_48M_INDEX:
6139 rinfo->legacy = 480;
6140 break;
6141 case IWL_RATE_54M_INDEX:
6142 rinfo->legacy = 540;
6143 }
6144 return;
6145 }
6146
6147 rinfo->nss = u32_get_bits(rate_n_flags,
6148 RATE_MCS_NSS_MSK) + 1;
6149 rinfo->mcs = format == RATE_MCS_HT_MSK ?
6150 RATE_HT_MCS_INDEX(rate_n_flags) :
6151 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK);
6152
6153 if (rate_n_flags & RATE_MCS_SGI_MSK)
6154 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6155
6156 switch (format) {
6157 case RATE_MCS_EHT_MSK:
6158 /* TODO: GI/LTF/RU. How does the firmware encode them? */
6159 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS;
6160 break;
6161 case RATE_MCS_HE_MSK:
6162 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK);
6163
6164 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS;
6165
6166 if (rate_n_flags & RATE_MCS_HE_106T_MSK) {
6167 rinfo->bw = RATE_INFO_BW_HE_RU;
6168 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106;
6169 }
6170
6171 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) {
6172 case RATE_MCS_HE_TYPE_SU:
6173 case RATE_MCS_HE_TYPE_EXT_SU:
6174 if (gi_ltf == 0 || gi_ltf == 1)
6175 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
6176 else if (gi_ltf == 2)
6177 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
6178 else if (gi_ltf == 3)
6179 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
6180 else
6181 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
6182 break;
6183 case RATE_MCS_HE_TYPE_MU:
6184 if (gi_ltf == 0 || gi_ltf == 1)
6185 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
6186 else if (gi_ltf == 2)
6187 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
6188 else
6189 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
6190 break;
6191 case RATE_MCS_HE_TYPE_TRIG:
6192 if (gi_ltf == 0 || gi_ltf == 1)
6193 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
6194 else
6195 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
6196 break;
6197 }
6198
6199 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK)
6200 rinfo->he_dcm = 1;
6201 break;
6202 case RATE_MCS_HT_MSK:
6203 rinfo->flags |= RATE_INFO_FLAGS_MCS;
6204 break;
6205 case RATE_MCS_VHT_MSK:
6206 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
6207 break;
6208 }
6209 }
6210
iwl_mvm_mac_sta_statistics(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct station_info * sinfo)6211 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
6212 struct ieee80211_vif *vif,
6213 struct ieee80211_sta *sta,
6214 struct station_info *sinfo)
6215 {
6216 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6217 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6218 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
6219 int i;
6220
6221 if (mvmsta->deflink.avg_energy) {
6222 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy;
6223 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
6224 }
6225
6226 if (iwl_mvm_has_tlc_offload(mvm)) {
6227 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw;
6228
6229 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate);
6230 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
6231 }
6232
6233 /* if beacon filtering isn't on mac80211 does it anyway */
6234 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
6235 return;
6236
6237 if (!vif->cfg.assoc)
6238 return;
6239
6240 guard(mvm)(mvm);
6241
6242 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id)
6243 return;
6244
6245 if (iwl_mvm_request_statistics(mvm, false))
6246 return;
6247
6248 sinfo->rx_beacon = 0;
6249 for_each_mvm_vif_valid_link(mvmvif, i)
6250 sinfo->rx_beacon += mvmvif->link[i]->beacon_stats.num_beacons +
6251 mvmvif->link[i]->beacon_stats.accu_num_beacons;
6252
6253 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX);
6254 if (mvmvif->deflink.beacon_stats.avg_signal) {
6255 /* firmware only reports a value after RXing a few beacons */
6256 sinfo->rx_beacon_signal_avg =
6257 mvmvif->deflink.beacon_stats.avg_signal;
6258 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
6259 }
6260 }
6261
iwl_mvm_event_mlme_callback_ini(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const struct ieee80211_mlme_event * mlme)6262 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm,
6263 struct ieee80211_vif *vif,
6264 const struct ieee80211_mlme_event *mlme)
6265 {
6266 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) &&
6267 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) {
6268 iwl_dbg_tlv_time_point(&mvm->fwrt,
6269 IWL_FW_INI_TIME_POINT_ASSOC_FAILED,
6270 NULL);
6271 return;
6272 }
6273
6274 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) {
6275 iwl_dbg_tlv_time_point(&mvm->fwrt,
6276 IWL_FW_INI_TIME_POINT_DEASSOC,
6277 NULL);
6278 return;
6279 }
6280 }
6281
iwl_mvm_event_mlme_callback(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const struct ieee80211_event * event)6282 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
6283 struct ieee80211_vif *vif,
6284 const struct ieee80211_event *event)
6285 {
6286 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
6287 do { \
6288 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
6289 break; \
6290 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
6291 } while (0)
6292
6293 struct iwl_fw_dbg_trigger_tlv *trig;
6294 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
6295
6296 if (iwl_trans_dbg_ini_valid(mvm->trans)) {
6297 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme);
6298 return;
6299 }
6300
6301 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
6302 FW_DBG_TRIGGER_MLME);
6303 if (!trig)
6304 return;
6305
6306 trig_mlme = (void *)trig->data;
6307
6308 if (event->u.mlme.data == ASSOC_EVENT) {
6309 if (event->u.mlme.status == MLME_DENIED)
6310 CHECK_MLME_TRIGGER(stop_assoc_denied,
6311 "DENIED ASSOC: reason %d",
6312 event->u.mlme.reason);
6313 else if (event->u.mlme.status == MLME_TIMEOUT)
6314 CHECK_MLME_TRIGGER(stop_assoc_timeout,
6315 "ASSOC TIMEOUT");
6316 } else if (event->u.mlme.data == AUTH_EVENT) {
6317 if (event->u.mlme.status == MLME_DENIED)
6318 CHECK_MLME_TRIGGER(stop_auth_denied,
6319 "DENIED AUTH: reason %d",
6320 event->u.mlme.reason);
6321 else if (event->u.mlme.status == MLME_TIMEOUT)
6322 CHECK_MLME_TRIGGER(stop_auth_timeout,
6323 "AUTH TIMEOUT");
6324 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
6325 CHECK_MLME_TRIGGER(stop_rx_deauth,
6326 "DEAUTH RX %d", event->u.mlme.reason);
6327 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
6328 CHECK_MLME_TRIGGER(stop_tx_deauth,
6329 "DEAUTH TX %d", event->u.mlme.reason);
6330 }
6331 #undef CHECK_MLME_TRIGGER
6332 }
6333
iwl_mvm_event_bar_rx_callback(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const struct ieee80211_event * event)6334 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
6335 struct ieee80211_vif *vif,
6336 const struct ieee80211_event *event)
6337 {
6338 struct iwl_fw_dbg_trigger_tlv *trig;
6339 struct iwl_fw_dbg_trigger_ba *ba_trig;
6340
6341 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
6342 FW_DBG_TRIGGER_BA);
6343 if (!trig)
6344 return;
6345
6346 ba_trig = (void *)trig->data;
6347
6348 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
6349 return;
6350
6351 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
6352 "BAR received from %pM, tid %d, ssn %d",
6353 event->u.ba.sta->addr, event->u.ba.tid,
6354 event->u.ba.ssn);
6355 }
6356
iwl_mvm_mac_event_callback(struct ieee80211_hw * hw,struct ieee80211_vif * vif,const struct ieee80211_event * event)6357 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
6358 struct ieee80211_vif *vif,
6359 const struct ieee80211_event *event)
6360 {
6361 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6362
6363 switch (event->type) {
6364 case MLME_EVENT:
6365 iwl_mvm_event_mlme_callback(mvm, vif, event);
6366 break;
6367 case BAR_RX_EVENT:
6368 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
6369 break;
6370 case BA_FRAME_TIMEOUT:
6371 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,
6372 event->u.ba.tid);
6373 break;
6374 default:
6375 break;
6376 }
6377 }
6378
6379 #define SYNC_RX_QUEUE_TIMEOUT (HZ)
iwl_mvm_sync_rx_queues_internal(struct iwl_mvm * mvm,enum iwl_mvm_rxq_notif_type type,bool sync,const void * data,u32 size)6380 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
6381 enum iwl_mvm_rxq_notif_type type,
6382 bool sync,
6383 const void *data, u32 size)
6384 {
6385 struct {
6386 struct iwl_rxq_sync_cmd cmd;
6387 struct iwl_mvm_internal_rxq_notif notif;
6388 } __packed cmd = {
6389 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1),
6390 .cmd.count =
6391 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) +
6392 size),
6393 .notif.type = type,
6394 .notif.sync = sync,
6395 };
6396 struct iwl_host_cmd hcmd = {
6397 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD),
6398 .data[0] = &cmd,
6399 .len[0] = sizeof(cmd),
6400 .data[1] = data,
6401 .len[1] = size,
6402 .flags = CMD_SEND_IN_RFKILL | (sync ? 0 : CMD_ASYNC),
6403 };
6404 int ret;
6405
6406 /* size must be a multiple of DWORD */
6407 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3)))
6408 return;
6409
6410 if (!iwl_mvm_has_new_rx_api(mvm))
6411 return;
6412
6413 if (sync) {
6414 cmd.notif.cookie = mvm->queue_sync_cookie;
6415 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1;
6416 }
6417
6418 ret = iwl_mvm_send_cmd(mvm, &hcmd);
6419 if (ret) {
6420 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
6421 goto out;
6422 }
6423
6424 if (sync) {
6425 lockdep_assert_held(&mvm->mutex);
6426 ret = wait_event_timeout(mvm->rx_sync_waitq,
6427 READ_ONCE(mvm->queue_sync_state) == 0,
6428 SYNC_RX_QUEUE_TIMEOUT);
6429 WARN_ONCE(!ret, "queue sync: failed to sync, state is 0x%lx, cookie %d\n",
6430 mvm->queue_sync_state,
6431 mvm->queue_sync_cookie);
6432 }
6433
6434 out:
6435 if (sync) {
6436 mvm->queue_sync_state = 0;
6437 mvm->queue_sync_cookie++;
6438 }
6439 }
6440
iwl_mvm_sync_rx_queues(struct ieee80211_hw * hw)6441 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
6442 {
6443 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6444
6445 guard(mvm)(mvm);
6446 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0);
6447 }
6448
6449 int
iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_ftm_responder_stats * stats)6450 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw,
6451 struct ieee80211_vif *vif,
6452 struct cfg80211_ftm_responder_stats *stats)
6453 {
6454 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6455 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6456
6457 if (vif->p2p || vif->type != NL80211_IFTYPE_AP ||
6458 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder)
6459 return -EINVAL;
6460
6461 mutex_lock(&mvm->mutex);
6462 *stats = mvm->ftm_resp_stats;
6463 mutex_unlock(&mvm->mutex);
6464
6465 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) |
6466 BIT(NL80211_FTM_STATS_PARTIAL_NUM) |
6467 BIT(NL80211_FTM_STATS_FAILED_NUM) |
6468 BIT(NL80211_FTM_STATS_ASAP_NUM) |
6469 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) |
6470 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) |
6471 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) |
6472 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) |
6473 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM);
6474
6475 return 0;
6476 }
6477
iwl_mvm_start_pmsr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_pmsr_request * request)6478 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6479 struct cfg80211_pmsr_request *request)
6480 {
6481 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6482
6483 guard(mvm)(mvm);
6484 return iwl_mvm_ftm_start(mvm, vif, request);
6485 }
6486
iwl_mvm_abort_pmsr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_pmsr_request * request)6487 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6488 struct cfg80211_pmsr_request *request)
6489 {
6490 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6491
6492 guard(mvm)(mvm);
6493 iwl_mvm_ftm_abort(mvm, request);
6494 }
6495
iwl_mvm_can_hw_csum(struct sk_buff * skb)6496 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb)
6497 {
6498 u8 protocol = ip_hdr(skb)->protocol;
6499
6500 if (!IS_ENABLED(CONFIG_INET))
6501 return false;
6502
6503 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP;
6504 }
6505
iwl_mvm_mac_can_aggregate(struct ieee80211_hw * hw,struct sk_buff * head,struct sk_buff * skb)6506 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw,
6507 struct sk_buff *head,
6508 struct sk_buff *skb)
6509 {
6510 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6511
6512 /* For now don't aggregate IPv6 in AMSDU */
6513 if (skb->protocol != htons(ETH_P_IP))
6514 return false;
6515
6516 if (!iwl_mvm_is_csum_supported(mvm))
6517 return true;
6518
6519 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head);
6520 }
6521
iwl_mvm_set_hw_timestamp(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_set_hw_timestamp * hwts)6522 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw,
6523 struct ieee80211_vif *vif,
6524 struct cfg80211_set_hw_timestamp *hwts)
6525 {
6526 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6527 u32 protocols = 0;
6528
6529 /* HW timestamping is only supported for a specific station */
6530 if (!hwts->macaddr)
6531 return -EOPNOTSUPP;
6532
6533 if (hwts->enable)
6534 protocols =
6535 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM;
6536
6537 guard(mvm)(mvm);
6538 return iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols);
6539 }
6540
6541 const struct ieee80211_ops iwl_mvm_hw_ops = {
6542 .tx = iwl_mvm_mac_tx,
6543 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue,
6544 .ampdu_action = iwl_mvm_mac_ampdu_action,
6545 .get_antenna = iwl_mvm_op_get_antenna,
6546 .set_antenna = iwl_mvm_op_set_antenna,
6547 .start = iwl_mvm_mac_start,
6548 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
6549 .stop = iwl_mvm_mac_stop,
6550 .add_interface = iwl_mvm_mac_add_interface,
6551 .remove_interface = iwl_mvm_mac_remove_interface,
6552 .config = iwl_mvm_mac_config,
6553 .prepare_multicast = iwl_mvm_prepare_multicast,
6554 .configure_filter = iwl_mvm_configure_filter,
6555 .config_iface_filter = iwl_mvm_config_iface_filter,
6556 .bss_info_changed = iwl_mvm_bss_info_changed,
6557 .hw_scan = iwl_mvm_mac_hw_scan,
6558 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
6559 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
6560 .sta_state = iwl_mvm_mac_sta_state,
6561 .sta_notify = iwl_mvm_mac_sta_notify,
6562 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
6563 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
6564 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
6565 .sta_rc_update = iwl_mvm_sta_rc_update,
6566 .conf_tx = iwl_mvm_mac_conf_tx,
6567 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
6568 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx,
6569 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
6570 .flush = iwl_mvm_mac_flush,
6571 .flush_sta = iwl_mvm_mac_flush_sta,
6572 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
6573 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
6574 .set_key = iwl_mvm_mac_set_key,
6575 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
6576 .remain_on_channel = iwl_mvm_roc,
6577 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
6578 .add_chanctx = iwl_mvm_add_chanctx,
6579 .remove_chanctx = iwl_mvm_remove_chanctx,
6580 .change_chanctx = iwl_mvm_change_chanctx,
6581 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
6582 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
6583 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
6584
6585 .start_ap = iwl_mvm_start_ap,
6586 .stop_ap = iwl_mvm_stop_ap,
6587 .join_ibss = iwl_mvm_start_ibss,
6588 .leave_ibss = iwl_mvm_stop_ibss,
6589
6590 .tx_last_beacon = iwl_mvm_tx_last_beacon,
6591
6592 .set_tim = iwl_mvm_set_tim,
6593
6594 .channel_switch = iwl_mvm_channel_switch,
6595 .pre_channel_switch = iwl_mvm_mac_pre_channel_switch,
6596 .post_channel_switch = iwl_mvm_post_channel_switch,
6597 .abort_channel_switch = iwl_mvm_abort_channel_switch,
6598 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon,
6599
6600 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
6601 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
6602 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
6603
6604 .event_callback = iwl_mvm_mac_event_callback,
6605
6606 .sync_rx_queues = iwl_mvm_sync_rx_queues,
6607
6608 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
6609
6610 #ifdef CONFIG_PM_SLEEP
6611 /* look at d3.c */
6612 .suspend = iwl_mvm_suspend,
6613 .resume = iwl_mvm_resume,
6614 .set_wakeup = iwl_mvm_set_wakeup,
6615 .set_rekey_data = iwl_mvm_set_rekey_data,
6616 #if IS_ENABLED(CONFIG_IPV6)
6617 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
6618 #endif
6619 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
6620 #endif
6621 .get_survey = iwl_mvm_mac_get_survey,
6622 .sta_statistics = iwl_mvm_mac_sta_statistics,
6623 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats,
6624 .start_pmsr = iwl_mvm_start_pmsr,
6625 .abort_pmsr = iwl_mvm_abort_pmsr,
6626
6627 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate,
6628 #ifdef CONFIG_IWLWIFI_DEBUGFS
6629 .vif_add_debugfs = iwl_mvm_vif_add_debugfs,
6630 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs,
6631 #endif
6632 .set_hw_timestamp = iwl_mvm_set_hw_timestamp,
6633 };
6634