1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
7 #include <linux/kernel.h>
8 #include <linux/slab.h>
9 #include <linux/skbuff.h>
10 #include <linux/netdevice.h>
11 #include <linux/etherdevice.h>
12 #include <linux/ip.h>
13 #include <linux/if_arp.h>
14 #include <linux/time.h>
15 #include <net/mac80211.h>
16 #include <net/ieee80211_radiotap.h>
17 #include <net/tcp.h>
18
19 #include "iwl-drv.h"
20 #include "iwl-op-mode.h"
21 #include "iwl-io.h"
22 #include "mvm.h"
23 #include "sta.h"
24 #include "time-event.h"
25 #include "iwl-eeprom-parse.h"
26 #include "iwl-phy-db.h"
27 #include "testmode.h"
28 #include "fw/error-dump.h"
29 #include "iwl-prph.h"
30 #include "iwl-nvm-parse.h"
31 #include "time-sync.h"
32
33 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
34 {
35 .max = 1,
36 .types = BIT(NL80211_IFTYPE_STATION),
37 },
38 {
39 .max = 1,
40 .types = BIT(NL80211_IFTYPE_AP) |
41 BIT(NL80211_IFTYPE_P2P_CLIENT) |
42 BIT(NL80211_IFTYPE_P2P_GO),
43 },
44 {
45 .max = 1,
46 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
47 },
48 };
49
50 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
51 {
52 .num_different_channels = 2,
53 .max_interfaces = 3,
54 .limits = iwl_mvm_limits,
55 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
56 },
57 };
58
59 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = {
60 .max_peers = IWL_MVM_TOF_MAX_APS,
61 .report_ap_tsf = 1,
62 .randomize_mac_addr = 1,
63
64 .ftm = {
65 .supported = 1,
66 .asap = 1,
67 .non_asap = 1,
68 .request_lci = 1,
69 .request_civicloc = 1,
70 .trigger_based = 1,
71 .non_trigger_based = 1,
72 .max_bursts_exponent = -1, /* all supported */
73 .max_ftms_per_burst = 0, /* no limits */
74 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
75 BIT(NL80211_CHAN_WIDTH_20) |
76 BIT(NL80211_CHAN_WIDTH_40) |
77 BIT(NL80211_CHAN_WIDTH_80) |
78 BIT(NL80211_CHAN_WIDTH_160),
79 .preambles = BIT(NL80211_PREAMBLE_LEGACY) |
80 BIT(NL80211_PREAMBLE_HT) |
81 BIT(NL80211_PREAMBLE_VHT) |
82 BIT(NL80211_PREAMBLE_HE),
83 },
84 };
85
86 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
87 enum set_key_cmd cmd,
88 struct ieee80211_vif *vif,
89 struct ieee80211_sta *sta,
90 struct ieee80211_key_conf *key);
91
iwl_mvm_reset_phy_ctxts(struct iwl_mvm * mvm)92 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
93 {
94 int i;
95
96 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
97 for (i = 0; i < NUM_PHY_CTX; i++) {
98 mvm->phy_ctxts[i].id = i;
99 mvm->phy_ctxts[i].ref = 0;
100 }
101 }
102
iwl_mvm_get_regdomain(struct wiphy * wiphy,const char * alpha2,enum iwl_mcc_source src_id,bool * changed)103 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
104 const char *alpha2,
105 enum iwl_mcc_source src_id,
106 bool *changed)
107 {
108 struct ieee80211_regdomain *regd = NULL;
109 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
110 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
111 struct iwl_mcc_update_resp_v8 *resp;
112 u8 resp_ver;
113
114 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
115
116 lockdep_assert_held(&mvm->mutex);
117
118 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
119 if (IS_ERR_OR_NULL(resp)) {
120 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
121 PTR_ERR_OR_ZERO(resp));
122 resp = NULL;
123 goto out;
124 }
125
126 if (changed) {
127 u32 status = le32_to_cpu(resp->status);
128
129 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE ||
130 status == MCC_RESP_ILLEGAL);
131 }
132 resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP,
133 MCC_UPDATE_CMD, 0);
134 IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver);
135
136 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
137 __le32_to_cpu(resp->n_channels),
138 resp->channels,
139 __le16_to_cpu(resp->mcc),
140 __le16_to_cpu(resp->geo_info),
141 le32_to_cpu(resp->cap), resp_ver);
142 /* Store the return source id */
143 src_id = resp->source_id;
144 if (IS_ERR_OR_NULL(regd)) {
145 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
146 PTR_ERR_OR_ZERO(regd));
147 goto out;
148 }
149
150 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
151 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
152 mvm->lar_regdom_set = true;
153 mvm->mcc_src = src_id;
154
155 iwl_mei_set_country_code(__le16_to_cpu(resp->mcc));
156
157 out:
158 kfree(resp);
159 return regd;
160 }
161
iwl_mvm_update_changed_regdom(struct iwl_mvm * mvm)162 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
163 {
164 bool changed;
165 struct ieee80211_regdomain *regd;
166
167 if (!iwl_mvm_is_lar_supported(mvm))
168 return;
169
170 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
171 if (!IS_ERR_OR_NULL(regd)) {
172 /* only update the regulatory core if changed */
173 if (changed)
174 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
175
176 kfree(regd);
177 }
178 }
179
iwl_mvm_get_current_regdomain(struct iwl_mvm * mvm,bool * changed)180 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
181 bool *changed)
182 {
183 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
184 iwl_mvm_is_wifi_mcc_supported(mvm) ?
185 MCC_SOURCE_GET_CURRENT :
186 MCC_SOURCE_OLD_FW, changed);
187 }
188
iwl_mvm_init_fw_regd(struct iwl_mvm * mvm)189 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
190 {
191 enum iwl_mcc_source used_src;
192 struct ieee80211_regdomain *regd;
193 int ret;
194 bool changed;
195 const struct ieee80211_regdomain *r =
196 wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd);
197
198 if (!r)
199 return -ENOENT;
200
201 /* save the last source in case we overwrite it below */
202 used_src = mvm->mcc_src;
203 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
204 /* Notify the firmware we support wifi location updates */
205 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
206 if (!IS_ERR_OR_NULL(regd))
207 kfree(regd);
208 }
209
210 /* Now set our last stored MCC and source */
211 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
212 &changed);
213 if (IS_ERR_OR_NULL(regd))
214 return -EIO;
215
216 /* update cfg80211 if the regdomain was changed */
217 if (changed)
218 ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd);
219 else
220 ret = 0;
221
222 kfree(regd);
223 return ret;
224 }
225
226 /* Each capability added here should also be add to tm_if_types_ext_capa_sta */
227 static const u8 he_if_types_ext_capa_sta[] = {
228 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
229 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,
230 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
231 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
232 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
233 };
234
235 static const u8 tm_if_types_ext_capa_sta[] = {
236 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
237 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT |
238 WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT,
239 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF |
240 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB,
241 [8] = WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB,
242 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT,
243 };
244
245 /* Additional interface types for which extended capabilities are
246 * specified separately
247 */
248
249 #define IWL_MVM_EMLSR_CAPA (IEEE80211_EML_CAP_EMLSR_SUPP | \
250 IEEE80211_EML_CAP_EMLSR_PADDING_DELAY_32US << \
251 __bf_shf(IEEE80211_EML_CAP_EMLSR_PADDING_DELAY) | \
252 IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY_64US << \
253 __bf_shf(IEEE80211_EML_CAP_EMLSR_TRANSITION_DELAY))
254
255 static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = {
256 {
257 .iftype = NL80211_IFTYPE_STATION,
258 .extended_capabilities = he_if_types_ext_capa_sta,
259 .extended_capabilities_mask = he_if_types_ext_capa_sta,
260 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta),
261 /* relevant only if EHT is supported */
262 .eml_capabilities = IWL_MVM_EMLSR_CAPA,
263 },
264 {
265 .iftype = NL80211_IFTYPE_STATION,
266 .extended_capabilities = tm_if_types_ext_capa_sta,
267 .extended_capabilities_mask = tm_if_types_ext_capa_sta,
268 .extended_capabilities_len = sizeof(tm_if_types_ext_capa_sta),
269 /* relevant only if EHT is supported */
270 .eml_capabilities = IWL_MVM_EMLSR_CAPA,
271 },
272 };
273
iwl_mvm_op_get_antenna(struct ieee80211_hw * hw,u32 * tx_ant,u32 * rx_ant)274 int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
275 {
276 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
277 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
278 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm);
279 return 0;
280 }
281
iwl_mvm_mac_setup_register(struct iwl_mvm * mvm)282 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
283 {
284 struct ieee80211_hw *hw = mvm->hw;
285 int num_mac, ret, i;
286 static const u32 mvm_ciphers[] = {
287 WLAN_CIPHER_SUITE_WEP40,
288 WLAN_CIPHER_SUITE_WEP104,
289 WLAN_CIPHER_SUITE_TKIP,
290 WLAN_CIPHER_SUITE_CCMP,
291 };
292 #ifdef CONFIG_PM_SLEEP
293 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
294 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
295 #endif
296 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);
297 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);
298
299 /* Tell mac80211 our characteristics */
300 ieee80211_hw_set(hw, SIGNAL_DBM);
301 ieee80211_hw_set(hw, SPECTRUM_MGMT);
302 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
303 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
304 ieee80211_hw_set(hw, SUPPORTS_PS);
305 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
306 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
307 ieee80211_hw_set(hw, CONNECTION_MONITOR);
308 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
309 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
310 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
311 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
312 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
313 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
314 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ);
315 ieee80211_hw_set(hw, STA_MMPDU_TXQ);
316
317 /* Set this early since we need to have it for the check below */
318 if (mvm->mld_api_is_used && mvm->nvm_data->sku_cap_11be_enable &&
319 !iwlwifi_mod_params.disable_11ax &&
320 !iwlwifi_mod_params.disable_11be)
321 hw->wiphy->flags |= WIPHY_FLAG_DISABLE_WEXT;
322
323 /* With MLD FW API, it tracks timing by itself,
324 * no need for any timing from the host
325 */
326 if (!mvm->mld_api_is_used)
327 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
328
329 /* We should probably have this, but mac80211
330 * currently doesn't support it for MLO.
331 */
332 if (!(hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO))
333 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP);
334
335 /*
336 * On older devices, enabling TX A-MSDU occasionally leads to
337 * something getting messed up, the command read from the FIFO
338 * gets out of sync and isn't a TX command, so that we have an
339 * assert EDC.
340 *
341 * It's not clear where the bug is, but since we didn't used to
342 * support A-MSDU until moving the mac80211 iTXQs, just leave it
343 * for older devices. We also don't see this issue on any newer
344 * devices.
345 */
346 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000)
347 ieee80211_hw_set(hw, TX_AMSDU);
348 ieee80211_hw_set(hw, TX_FRAG_LIST);
349
350 if (iwl_mvm_has_tlc_offload(mvm)) {
351 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
352 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
353 }
354
355 /* We want to use the mac80211's reorder buffer for 9000 */
356 if (iwl_mvm_has_new_rx_api(mvm) &&
357 mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_9000)
358 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
359
360 if (fw_has_capa(&mvm->fw->ucode_capa,
361 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
362 ieee80211_hw_set(hw, AP_LINK_PS);
363 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
364 /*
365 * we absolutely need this for the new TX API since that comes
366 * with many more queues than the current code can deal with
367 * for station powersave
368 */
369 return -EINVAL;
370 }
371
372 if (mvm->trans->num_rx_queues > 1)
373 ieee80211_hw_set(hw, USES_RSS);
374
375 if (mvm->trans->max_skb_frags)
376 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
377
378 hw->queues = IEEE80211_NUM_ACS;
379 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
380 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
381 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
382 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
383 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
384
385 hw->radiotap_timestamp.units_pos =
386 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
387 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
388 /* this is the case for CCK frames, it's better (only 8) for OFDM */
389 hw->radiotap_timestamp.accuracy = 22;
390
391 if (!iwl_mvm_has_tlc_offload(mvm))
392 hw->rate_control_algorithm = RS_NAME;
393
394 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
395 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
396 hw->max_tx_fragments = mvm->trans->max_skb_frags;
397
398 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
399 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
400 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
401 hw->wiphy->cipher_suites = mvm->ciphers;
402
403 if (iwl_mvm_has_new_rx_api(mvm)) {
404 mvm->ciphers[hw->wiphy->n_cipher_suites] =
405 WLAN_CIPHER_SUITE_GCMP;
406 hw->wiphy->n_cipher_suites++;
407 mvm->ciphers[hw->wiphy->n_cipher_suites] =
408 WLAN_CIPHER_SUITE_GCMP_256;
409 hw->wiphy->n_cipher_suites++;
410 }
411
412 if (iwlwifi_mod_params.swcrypto)
413 IWL_ERR(mvm,
414 "iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n");
415 if (!iwlwifi_mod_params.bt_coex_active)
416 IWL_ERR(mvm,
417 "iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n");
418
419 ieee80211_hw_set(hw, MFP_CAPABLE);
420 mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC;
421 hw->wiphy->n_cipher_suites++;
422 if (iwl_mvm_has_new_rx_api(mvm)) {
423 mvm->ciphers[hw->wiphy->n_cipher_suites] =
424 WLAN_CIPHER_SUITE_BIP_GMAC_128;
425 hw->wiphy->n_cipher_suites++;
426 mvm->ciphers[hw->wiphy->n_cipher_suites] =
427 WLAN_CIPHER_SUITE_BIP_GMAC_256;
428 hw->wiphy->n_cipher_suites++;
429 }
430
431 wiphy_ext_feature_set(hw->wiphy,
432 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
433 wiphy_ext_feature_set(hw->wiphy,
434 NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT);
435
436 if (fw_has_capa(&mvm->fw->ucode_capa,
437 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) {
438 wiphy_ext_feature_set(hw->wiphy,
439 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);
440 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa;
441 }
442
443 if (sec_key_ver &&
444 fw_has_capa(&mvm->fw->ucode_capa,
445 IWL_UCODE_TLV_CAPA_BIGTK_TX_SUPPORT))
446 wiphy_ext_feature_set(hw->wiphy,
447 NL80211_EXT_FEATURE_BEACON_PROTECTION);
448 else if (fw_has_capa(&mvm->fw->ucode_capa,
449 IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT))
450 wiphy_ext_feature_set(hw->wiphy,
451 NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT);
452
453 if (fw_has_capa(&mvm->fw->ucode_capa,
454 IWL_UCODE_TLV_CAPA_TIME_SYNC_BOTH_FTM_TM))
455 hw->wiphy->hw_timestamp_max_peers = 1;
456
457 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
458 hw->wiphy->features |=
459 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
460 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
461 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
462
463 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
464 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
465 hw->chanctx_data_size = sizeof(u16);
466 hw->txq_data_size = sizeof(struct iwl_mvm_txq);
467
468 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
469 BIT(NL80211_IFTYPE_P2P_CLIENT) |
470 BIT(NL80211_IFTYPE_AP) |
471 BIT(NL80211_IFTYPE_P2P_GO) |
472 BIT(NL80211_IFTYPE_P2P_DEVICE) |
473 BIT(NL80211_IFTYPE_ADHOC);
474
475 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
476 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
477
478 /* The new Tx API does not allow to pass the key or keyid of a MPDU to
479 * the hw, preventing us to control which key(id) to use per MPDU.
480 * Till that's fixed we can't use Extended Key ID for the newer cards.
481 */
482 if (!iwl_mvm_has_new_tx_api(mvm))
483 wiphy_ext_feature_set(hw->wiphy,
484 NL80211_EXT_FEATURE_EXT_KEY_ID);
485 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS;
486
487 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
488 if (iwl_mvm_is_lar_supported(mvm))
489 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
490 else
491 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
492 REGULATORY_DISABLE_BEACON_HINTS;
493
494 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
495 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
496 hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ;
497
498 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
499 hw->wiphy->n_iface_combinations =
500 ARRAY_SIZE(iwl_mvm_iface_combinations);
501
502 hw->wiphy->max_remain_on_channel_duration = 10000;
503 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
504
505 /* Extract MAC address */
506 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
507 hw->wiphy->addresses = mvm->addresses;
508 hw->wiphy->n_addresses = 1;
509
510 /* Extract additional MAC addresses if available */
511 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
512 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
513
514 for (i = 1; i < num_mac; i++) {
515 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
516 ETH_ALEN);
517 mvm->addresses[i].addr[5]++;
518 hw->wiphy->n_addresses++;
519 }
520
521 iwl_mvm_reset_phy_ctxts(mvm);
522
523 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
524
525 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
526
527 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
528 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
529 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
530
531 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
532 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
533 else
534 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
535
536 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
537 hw->wiphy->bands[NL80211_BAND_2GHZ] =
538 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
539 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
540 hw->wiphy->bands[NL80211_BAND_5GHZ] =
541 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
542
543 if (fw_has_capa(&mvm->fw->ucode_capa,
544 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
545 fw_has_api(&mvm->fw->ucode_capa,
546 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
547 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
548 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
549 }
550 if (fw_has_capa(&mvm->fw->ucode_capa,
551 IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) &&
552 mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels)
553 hw->wiphy->bands[NL80211_BAND_6GHZ] =
554 &mvm->nvm_data->bands[NL80211_BAND_6GHZ];
555
556 hw->wiphy->hw_version = mvm->trans->hw_id;
557
558 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
559 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
560 else
561 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
562
563 hw->wiphy->max_sched_scan_reqs = 1;
564 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
565 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw);
566 /* we create the 802.11 header and zero length SSID IE. */
567 hw->wiphy->max_sched_scan_ie_len =
568 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
569 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
570 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
571
572 /*
573 * the firmware uses u8 for num of iterations, but 0xff is saved for
574 * infinite loop, so the maximum number of iterations is actually 254.
575 */
576 hw->wiphy->max_sched_scan_plan_iterations = 254;
577
578 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
579 NL80211_FEATURE_LOW_PRIORITY_SCAN |
580 NL80211_FEATURE_P2P_GO_OPPPS |
581 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
582 NL80211_FEATURE_DYNAMIC_SMPS |
583 NL80211_FEATURE_STATIC_SMPS |
584 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
585
586 if (fw_has_capa(&mvm->fw->ucode_capa,
587 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
588 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
589 if (fw_has_capa(&mvm->fw->ucode_capa,
590 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
591 hw->wiphy->features |= NL80211_FEATURE_QUIET;
592
593 if (fw_has_capa(&mvm->fw->ucode_capa,
594 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
595 hw->wiphy->features |=
596 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
597
598 if (fw_has_capa(&mvm->fw->ucode_capa,
599 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
600 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
601
602 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL,
603 IWL_FW_CMD_VER_UNKNOWN) == 3)
604 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK;
605
606 if (fw_has_api(&mvm->fw->ucode_capa,
607 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
608 wiphy_ext_feature_set(hw->wiphy,
609 NL80211_EXT_FEATURE_SCAN_START_TIME);
610 wiphy_ext_feature_set(hw->wiphy,
611 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
612 }
613
614 if (iwl_mvm_is_oce_supported(mvm)) {
615 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0);
616
617 wiphy_ext_feature_set(hw->wiphy,
618 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP);
619 wiphy_ext_feature_set(hw->wiphy,
620 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME);
621 wiphy_ext_feature_set(hw->wiphy,
622 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE);
623
624 /* Old firmware also supports probe deferral and suppression */
625 if (scan_ver < 15)
626 wiphy_ext_feature_set(hw->wiphy,
627 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION);
628 }
629
630 hw->wiphy->iftype_ext_capab = NULL;
631 hw->wiphy->num_iftype_ext_capab = 0;
632
633 if (mvm->nvm_data->sku_cap_11ax_enable &&
634 !iwlwifi_mod_params.disable_11ax) {
635 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa;
636 hw->wiphy->num_iftype_ext_capab =
637 ARRAY_SIZE(add_iftypes_ext_capa) - 1;
638
639 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
640 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID);
641 }
642
643 if (iwl_fw_lookup_cmd_ver(mvm->fw,
644 WIDE_ID(DATA_PATH_GROUP,
645 WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD),
646 IWL_FW_CMD_VER_UNKNOWN) >= 1) {
647 IWL_DEBUG_INFO(mvm->trans, "Timing measurement supported\n");
648
649 if (!hw->wiphy->iftype_ext_capab) {
650 hw->wiphy->num_iftype_ext_capab = 1;
651 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa +
652 ARRAY_SIZE(add_iftypes_ext_capa) - 1;
653 } else {
654 hw->wiphy->iftype_ext_capab = add_iftypes_ext_capa + 1;
655 }
656 }
657
658 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
659
660 #ifdef CONFIG_PM_SLEEP
661 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) &&
662 mvm->trans->ops->d3_suspend &&
663 mvm->trans->ops->d3_resume &&
664 device_can_wakeup(mvm->trans->dev)) {
665 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
666 WIPHY_WOWLAN_DISCONNECT |
667 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
668 WIPHY_WOWLAN_RFKILL_RELEASE |
669 WIPHY_WOWLAN_NET_DETECT;
670 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
671 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
672 WIPHY_WOWLAN_4WAY_HANDSHAKE;
673
674 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
675 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
676 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
677 mvm->wowlan.max_nd_match_sets =
678 iwl_umac_scan_get_max_profiles(mvm->fw);
679 hw->wiphy->wowlan = &mvm->wowlan;
680 }
681 #endif
682
683 ret = iwl_mvm_leds_init(mvm);
684 if (ret)
685 return ret;
686
687 if (fw_has_capa(&mvm->fw->ucode_capa,
688 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
689 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
690 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
691 ieee80211_hw_set(hw, TDLS_WIDER_BW);
692 }
693
694 if (fw_has_capa(&mvm->fw->ucode_capa,
695 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
696 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
697 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
698 }
699
700 hw->netdev_features |= mvm->cfg->features;
701 if (!iwl_mvm_is_csum_supported(mvm))
702 hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK;
703
704 if (mvm->cfg->vht_mu_mimo_supported)
705 wiphy_ext_feature_set(hw->wiphy,
706 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
707
708 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT))
709 wiphy_ext_feature_set(hw->wiphy,
710 NL80211_EXT_FEATURE_PROTECTED_TWT);
711
712 iwl_mvm_vendor_cmds_register(mvm);
713
714 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm);
715 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm);
716
717 ret = ieee80211_register_hw(mvm->hw);
718 if (ret) {
719 iwl_mvm_leds_exit(mvm);
720 }
721
722 return ret;
723 }
724
iwl_mvm_tx_skb(struct iwl_mvm * mvm,struct sk_buff * skb,struct ieee80211_sta * sta)725 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
726 struct ieee80211_sta *sta)
727 {
728 if (likely(sta)) {
729 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0))
730 return;
731 } else {
732 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0))
733 return;
734 }
735
736 ieee80211_free_txskb(mvm->hw, skb);
737 }
738
iwl_mvm_mac_tx(struct ieee80211_hw * hw,struct ieee80211_tx_control * control,struct sk_buff * skb)739 void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
740 struct ieee80211_tx_control *control, struct sk_buff *skb)
741 {
742 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
743 struct ieee80211_sta *sta = control->sta;
744 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
745 struct ieee80211_hdr *hdr = (void *)skb->data;
746 bool offchannel = IEEE80211_SKB_CB(skb)->flags &
747 IEEE80211_TX_CTL_TX_OFFCHAN;
748 u32 link_id = u32_get_bits(info->control.flags,
749 IEEE80211_TX_CTRL_MLO_LINK);
750 struct ieee80211_sta *tmp_sta = sta;
751
752 if (iwl_mvm_is_radio_killed(mvm)) {
753 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
754 goto drop;
755 }
756
757 if (offchannel &&
758 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
759 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
760 goto drop;
761
762 /*
763 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs
764 * so we treat the others as broadcast
765 */
766 if (ieee80211_is_mgmt(hdr->frame_control))
767 sta = NULL;
768
769 /* If there is no sta, and it's not offchannel - send through AP */
770 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION &&
771 !offchannel) {
772 struct iwl_mvm_vif *mvmvif =
773 iwl_mvm_vif_from_mac80211(info->control.vif);
774 u8 ap_sta_id = READ_ONCE(mvmvif->deflink.ap_sta_id);
775
776 if (ap_sta_id < mvm->fw->ucode_capa.num_stations) {
777 /* mac80211 holds rcu read lock */
778 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]);
779 if (IS_ERR_OR_NULL(sta))
780 goto drop;
781 }
782 }
783
784 if (tmp_sta && !sta && link_id != IEEE80211_LINK_UNSPECIFIED &&
785 !ieee80211_is_probe_resp(hdr->frame_control)) {
786 /* translate MLD addresses to LINK addresses */
787 struct ieee80211_link_sta *link_sta =
788 rcu_dereference(tmp_sta->link[link_id]);
789 struct ieee80211_bss_conf *link_conf =
790 rcu_dereference(info->control.vif->link_conf[link_id]);
791 struct ieee80211_mgmt *mgmt;
792
793 if (WARN_ON(!link_sta || !link_conf))
794 goto drop;
795
796 /* if sta is NULL, the frame is a management frame */
797 mgmt = (void *)hdr;
798 memcpy(mgmt->da, link_sta->addr, ETH_ALEN);
799 memcpy(mgmt->sa, link_conf->addr, ETH_ALEN);
800 memcpy(mgmt->bssid, link_conf->bssid, ETH_ALEN);
801 }
802
803 iwl_mvm_tx_skb(mvm, skb, sta);
804 return;
805 drop:
806 ieee80211_free_txskb(hw, skb);
807 }
808
iwl_mvm_mac_itxq_xmit(struct ieee80211_hw * hw,struct ieee80211_txq * txq)809 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq)
810 {
811 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
812 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
813 struct sk_buff *skb = NULL;
814
815 /*
816 * No need for threads to be pending here, they can leave the first
817 * taker all the work.
818 *
819 * mvmtxq->tx_request logic:
820 *
821 * If 0, no one is currently TXing, set to 1 to indicate current thread
822 * will now start TX and other threads should quit.
823 *
824 * If 1, another thread is currently TXing, set to 2 to indicate to
825 * that thread that there was another request. Since that request may
826 * have raced with the check whether the queue is empty, the TXing
827 * thread should check the queue's status one more time before leaving.
828 * This check is done in order to not leave any TX hanging in the queue
829 * until the next TX invocation (which may not even happen).
830 *
831 * If 2, another thread is currently TXing, and it will already double
832 * check the queue, so do nothing.
833 */
834 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2))
835 return;
836
837 rcu_read_lock();
838 do {
839 while (likely(!test_bit(IWL_MVM_TXQ_STATE_STOP_FULL,
840 &mvmtxq->state) &&
841 !test_bit(IWL_MVM_TXQ_STATE_STOP_REDIRECT,
842 &mvmtxq->state) &&
843 !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) {
844 skb = ieee80211_tx_dequeue(hw, txq);
845
846 if (!skb) {
847 if (txq->sta)
848 IWL_DEBUG_TX(mvm,
849 "TXQ of sta %pM tid %d is now empty\n",
850 txq->sta->addr,
851 txq->tid);
852 break;
853 }
854
855 iwl_mvm_tx_skb(mvm, skb, txq->sta);
856 }
857 } while (atomic_dec_return(&mvmtxq->tx_request));
858 rcu_read_unlock();
859 }
860
iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw * hw,struct ieee80211_txq * txq)861 void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw,
862 struct ieee80211_txq *txq)
863 {
864 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
865 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
866
867 if (likely(test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) ||
868 !txq->sta) {
869 iwl_mvm_mac_itxq_xmit(hw, txq);
870 return;
871 }
872
873 /* iwl_mvm_mac_itxq_xmit() will later be called by the worker
874 * to handle any packets we leave on the txq now
875 */
876
877 spin_lock_bh(&mvm->add_stream_lock);
878 /* The list is being deleted only after the queue is fully allocated. */
879 if (list_empty(&mvmtxq->list) &&
880 /* recheck under lock */
881 !test_bit(IWL_MVM_TXQ_STATE_READY, &mvmtxq->state)) {
882 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs);
883 schedule_work(&mvm->add_stream_wk);
884 }
885 spin_unlock_bh(&mvm->add_stream_lock);
886 }
887
888 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
889 do { \
890 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
891 break; \
892 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
893 } while (0)
894
895 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)896 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
897 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
898 enum ieee80211_ampdu_mlme_action action)
899 {
900 struct iwl_fw_dbg_trigger_tlv *trig;
901 struct iwl_fw_dbg_trigger_ba *ba_trig;
902
903 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
904 FW_DBG_TRIGGER_BA);
905 if (!trig)
906 return;
907
908 ba_trig = (void *)trig->data;
909
910 switch (action) {
911 case IEEE80211_AMPDU_TX_OPERATIONAL: {
912 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
913 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
914
915 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
916 "TX AGG START: MAC %pM tid %d ssn %d\n",
917 sta->addr, tid, tid_data->ssn);
918 break;
919 }
920 case IEEE80211_AMPDU_TX_STOP_CONT:
921 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
922 "TX AGG STOP: MAC %pM tid %d\n",
923 sta->addr, tid);
924 break;
925 case IEEE80211_AMPDU_RX_START:
926 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
927 "RX AGG START: MAC %pM tid %d ssn %d\n",
928 sta->addr, tid, rx_ba_ssn);
929 break;
930 case IEEE80211_AMPDU_RX_STOP:
931 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
932 "RX AGG STOP: MAC %pM tid %d\n",
933 sta->addr, tid);
934 break;
935 default:
936 break;
937 }
938 }
939
iwl_mvm_mac_ampdu_action(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_ampdu_params * params)940 int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
941 struct ieee80211_vif *vif,
942 struct ieee80211_ampdu_params *params)
943 {
944 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
945 int ret;
946 struct ieee80211_sta *sta = params->sta;
947 enum ieee80211_ampdu_mlme_action action = params->action;
948 u16 tid = params->tid;
949 u16 *ssn = ¶ms->ssn;
950 u16 buf_size = params->buf_size;
951 bool amsdu = params->amsdu;
952 u16 timeout = params->timeout;
953
954 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
955 sta->addr, tid, action);
956
957 if (!(mvm->nvm_data->sku_cap_11n_enable))
958 return -EACCES;
959
960 mutex_lock(&mvm->mutex);
961
962 switch (action) {
963 case IEEE80211_AMPDU_RX_START:
964 if (iwl_mvm_vif_from_mac80211(vif)->deflink.ap_sta_id ==
965 iwl_mvm_sta_from_mac80211(sta)->deflink.sta_id) {
966 struct iwl_mvm_vif *mvmvif;
967 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id;
968 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid];
969
970 mdata->opened_rx_ba_sessions = true;
971 mvmvif = iwl_mvm_vif_from_mac80211(vif);
972 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk);
973 }
974 if (!iwl_enable_rx_ampdu()) {
975 ret = -EINVAL;
976 break;
977 }
978 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
979 timeout);
980 break;
981 case IEEE80211_AMPDU_RX_STOP:
982 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
983 timeout);
984 break;
985 case IEEE80211_AMPDU_TX_START:
986 if (!iwl_enable_tx_ampdu()) {
987 ret = -EINVAL;
988 break;
989 }
990 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
991 break;
992 case IEEE80211_AMPDU_TX_STOP_CONT:
993 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
994 break;
995 case IEEE80211_AMPDU_TX_STOP_FLUSH:
996 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
997 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
998 break;
999 case IEEE80211_AMPDU_TX_OPERATIONAL:
1000 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
1001 buf_size, amsdu);
1002 break;
1003 default:
1004 WARN_ON_ONCE(1);
1005 ret = -EINVAL;
1006 break;
1007 }
1008
1009 if (!ret) {
1010 u16 rx_ba_ssn = 0;
1011
1012 if (action == IEEE80211_AMPDU_RX_START)
1013 rx_ba_ssn = *ssn;
1014
1015 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1016 rx_ba_ssn, action);
1017 }
1018 mutex_unlock(&mvm->mutex);
1019
1020 return ret;
1021 }
1022
iwl_mvm_cleanup_iterator(void * data,u8 * mac,struct ieee80211_vif * vif)1023 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1024 struct ieee80211_vif *vif)
1025 {
1026 struct iwl_mvm *mvm = data;
1027 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1028 struct iwl_probe_resp_data *probe_data;
1029 unsigned int link_id;
1030
1031 mvmvif->uploaded = false;
1032
1033 spin_lock_bh(&mvm->time_event_lock);
1034 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1035 spin_unlock_bh(&mvm->time_event_lock);
1036
1037 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
1038
1039 for_each_mvm_vif_valid_link(mvmvif, link_id) {
1040 mvmvif->link[link_id]->ap_sta_id = IWL_MVM_INVALID_STA;
1041 mvmvif->link[link_id]->fw_link_id = IWL_MVM_FW_LINK_ID_INVALID;
1042 mvmvif->link[link_id]->phy_ctxt = NULL;
1043 mvmvif->link[link_id]->active = 0;
1044 mvmvif->link[link_id]->igtk = NULL;
1045 }
1046
1047 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,
1048 lockdep_is_held(&mvm->mutex));
1049 if (probe_data)
1050 kfree_rcu(probe_data, rcu_head);
1051 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);
1052 }
1053
iwl_mvm_restart_cleanup(struct iwl_mvm * mvm)1054 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1055 {
1056 iwl_mvm_stop_device(mvm);
1057
1058 mvm->cur_aid = 0;
1059
1060 mvm->scan_status = 0;
1061 mvm->ps_disabled = false;
1062 mvm->rfkill_safe_init_done = false;
1063
1064 /* just in case one was running */
1065 iwl_mvm_cleanup_roc_te(mvm);
1066 ieee80211_remain_on_channel_expired(mvm->hw);
1067
1068 iwl_mvm_ftm_restart(mvm);
1069
1070 /*
1071 * cleanup all interfaces, even inactive ones, as some might have
1072 * gone down during the HW restart
1073 */
1074 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
1075
1076 mvm->p2p_device_vif = NULL;
1077
1078 iwl_mvm_reset_phy_ctxts(mvm);
1079 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1080 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1081 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1082
1083 ieee80211_wake_queues(mvm->hw);
1084
1085 mvm->rx_ba_sessions = 0;
1086 mvm->fwrt.dump.conf = FW_DBG_INVALID;
1087 mvm->monitor_on = false;
1088 #ifdef CONFIG_IWLWIFI_DEBUGFS
1089 mvm->beacon_inject_active = false;
1090 #endif
1091
1092 /* keep statistics ticking */
1093 iwl_mvm_accu_radio_stats(mvm);
1094 }
1095
__iwl_mvm_mac_start(struct iwl_mvm * mvm)1096 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1097 {
1098 int ret;
1099
1100 lockdep_assert_held(&mvm->mutex);
1101
1102 ret = iwl_mvm_mei_get_ownership(mvm);
1103 if (ret)
1104 return ret;
1105
1106 if (mvm->mei_nvm_data) {
1107 /* We got the NIC, we can now free the MEI NVM data */
1108 kfree(mvm->mei_nvm_data);
1109 mvm->mei_nvm_data = NULL;
1110
1111 /*
1112 * We can't free the nvm_data we allocated based on the SAP
1113 * data because we registered to cfg80211 with the channels
1114 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data
1115 * just in order to be able free it later.
1116 * NULLify nvm_data so that we will read the NVM from the
1117 * firmware this time.
1118 */
1119 mvm->temp_nvm_data = mvm->nvm_data;
1120 mvm->nvm_data = NULL;
1121 }
1122
1123 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1124 /*
1125 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1126 * so later code will - from now on - see that we're doing it.
1127 */
1128 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1129 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1130 /* Clean up some internal and mac80211 state on restart */
1131 iwl_mvm_restart_cleanup(mvm);
1132 }
1133 ret = iwl_mvm_up(mvm);
1134
1135 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT,
1136 NULL);
1137 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC,
1138 NULL);
1139
1140 mvm->last_reset_or_resume_time_jiffies = jiffies;
1141
1142 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1143 /* Something went wrong - we need to finish some cleanup
1144 * that normally iwl_mvm_mac_restart_complete() below
1145 * would do.
1146 */
1147 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1148 }
1149
1150 return ret;
1151 }
1152
iwl_mvm_mac_start(struct ieee80211_hw * hw)1153 int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1154 {
1155 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1156 int ret;
1157 int retry, max_retry = 0;
1158
1159 mutex_lock(&mvm->mutex);
1160
1161 /* we are starting the mac not in error flow, and restart is enabled */
1162 if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) &&
1163 iwlwifi_mod_params.fw_restart) {
1164 max_retry = IWL_MAX_INIT_RETRY;
1165 /*
1166 * This will prevent mac80211 recovery flows to trigger during
1167 * init failures
1168 */
1169 set_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1170 }
1171
1172 for (retry = 0; retry <= max_retry; retry++) {
1173 ret = __iwl_mvm_mac_start(mvm);
1174 if (!ret)
1175 break;
1176
1177 /*
1178 * In PLDR sync PCI re-enumeration is needed. no point to retry
1179 * mac start before that.
1180 */
1181 if (mvm->pldr_sync) {
1182 iwl_mei_alive_notif(false);
1183 iwl_trans_pcie_remove(mvm->trans, true);
1184 break;
1185 }
1186
1187 IWL_ERR(mvm, "mac start retry %d\n", retry);
1188 }
1189 clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1190
1191 mutex_unlock(&mvm->mutex);
1192
1193 iwl_mvm_mei_set_sw_rfkill_state(mvm);
1194
1195 return ret;
1196 }
1197
iwl_mvm_restart_complete(struct iwl_mvm * mvm)1198 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1199 {
1200 int ret;
1201
1202 mutex_lock(&mvm->mutex);
1203
1204 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1205
1206 ret = iwl_mvm_update_quotas(mvm, true, NULL);
1207 if (ret)
1208 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1209 ret);
1210
1211 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY);
1212
1213 /*
1214 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1215 * of packets the FW sent out, so we must reconnect.
1216 */
1217 iwl_mvm_teardown_tdls_peers(mvm);
1218
1219 mutex_unlock(&mvm->mutex);
1220 }
1221
iwl_mvm_mac_reconfig_complete(struct ieee80211_hw * hw,enum ieee80211_reconfig_type reconfig_type)1222 void iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1223 enum ieee80211_reconfig_type reconfig_type)
1224 {
1225 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1226
1227 switch (reconfig_type) {
1228 case IEEE80211_RECONFIG_TYPE_RESTART:
1229 iwl_mvm_restart_complete(mvm);
1230 break;
1231 case IEEE80211_RECONFIG_TYPE_SUSPEND:
1232 break;
1233 }
1234 }
1235
__iwl_mvm_mac_stop(struct iwl_mvm * mvm)1236 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1237 {
1238 lockdep_assert_held(&mvm->mutex);
1239
1240 iwl_mvm_ftm_initiator_smooth_stop(mvm);
1241
1242 /* firmware counters are obviously reset now, but we shouldn't
1243 * partially track so also clear the fw_reset_accu counters.
1244 */
1245 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1246
1247 /* async_handlers_wk is now blocked */
1248
1249 if (!iwl_mvm_has_new_station_api(mvm->fw))
1250 iwl_mvm_rm_aux_sta(mvm);
1251
1252 iwl_mvm_stop_device(mvm);
1253
1254 iwl_mvm_async_handlers_purge(mvm);
1255 /* async_handlers_list is empty and will stay empty: HW is stopped */
1256
1257 /*
1258 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the
1259 * hw (as restart_complete() won't be called in this case) and mac80211
1260 * won't execute the restart.
1261 * But make sure to cleanup interfaces that have gone down before/during
1262 * HW restart was requested.
1263 */
1264 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) ||
1265 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1266 &mvm->status))
1267 ieee80211_iterate_interfaces(mvm->hw, 0,
1268 iwl_mvm_cleanup_iterator, mvm);
1269
1270 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1271 * make sure there's nothing left there and warn if any is found.
1272 */
1273 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1274 int i;
1275
1276 for (i = 0; i < mvm->max_scans; i++) {
1277 if (WARN_ONCE(mvm->scan_uid_status[i],
1278 "UMAC scan UID %d status was not cleaned\n",
1279 i))
1280 mvm->scan_uid_status[i] = 0;
1281 }
1282 }
1283 }
1284
iwl_mvm_mac_stop(struct ieee80211_hw * hw)1285 void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1286 {
1287 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1288
1289 flush_work(&mvm->async_handlers_wk);
1290 flush_work(&mvm->add_stream_wk);
1291
1292 /*
1293 * Lock and clear the firmware running bit here already, so that
1294 * new commands coming in elsewhere, e.g. from debugfs, will not
1295 * be able to proceed. This is important here because one of those
1296 * debugfs files causes the firmware dump to be triggered, and if we
1297 * don't stop debugfs accesses before canceling that it could be
1298 * retriggered after we flush it but before we've cleared the bit.
1299 */
1300 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1301
1302 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
1303 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
1304
1305 /*
1306 * The work item could be running or queued if the
1307 * ROC time event stops just as we get here.
1308 */
1309 flush_work(&mvm->roc_done_wk);
1310
1311 iwl_mvm_mei_set_sw_rfkill_state(mvm);
1312
1313 mutex_lock(&mvm->mutex);
1314 __iwl_mvm_mac_stop(mvm);
1315 mutex_unlock(&mvm->mutex);
1316
1317 /*
1318 * The worker might have been waiting for the mutex, let it run and
1319 * discover that its list is now empty.
1320 */
1321 cancel_work_sync(&mvm->async_handlers_wk);
1322 }
1323
iwl_mvm_get_free_phy_ctxt(struct iwl_mvm * mvm)1324 struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1325 {
1326 u16 i;
1327
1328 lockdep_assert_held(&mvm->mutex);
1329
1330 for (i = 0; i < NUM_PHY_CTX; i++)
1331 if (!mvm->phy_ctxts[i].ref)
1332 return &mvm->phy_ctxts[i];
1333
1334 IWL_ERR(mvm, "No available PHY context\n");
1335 return NULL;
1336 }
1337
iwl_mvm_set_tx_power(struct iwl_mvm * mvm,struct ieee80211_vif * vif,s16 tx_power)1338 int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1339 s16 tx_power)
1340 {
1341 u32 cmd_id = REDUCE_TX_POWER_CMD;
1342 int len;
1343 struct iwl_dev_tx_power_cmd cmd = {
1344 .common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1345 .common.mac_context_id =
1346 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1347 .common.pwr_restriction = cpu_to_le16(8 * tx_power),
1348 };
1349 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
1350 IWL_FW_CMD_VER_UNKNOWN);
1351
1352 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1353 cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1354
1355 if (cmd_ver == 7)
1356 len = sizeof(cmd.v7);
1357 else if (cmd_ver == 6)
1358 len = sizeof(cmd.v6);
1359 else if (fw_has_api(&mvm->fw->ucode_capa,
1360 IWL_UCODE_TLV_API_REDUCE_TX_POWER))
1361 len = sizeof(cmd.v5);
1362 else if (fw_has_capa(&mvm->fw->ucode_capa,
1363 IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1364 len = sizeof(cmd.v4);
1365 else
1366 len = sizeof(cmd.v3);
1367
1368 /* all structs have the same common part, add it */
1369 len += sizeof(cmd.common);
1370
1371 return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd);
1372 }
1373
iwl_mvm_post_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1374 int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
1375 struct ieee80211_vif *vif)
1376 {
1377 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1378 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1379 int ret;
1380
1381 mutex_lock(&mvm->mutex);
1382
1383 if (vif->type == NL80211_IFTYPE_STATION) {
1384 struct iwl_mvm_sta *mvmsta;
1385
1386 mvmvif->csa_bcn_pending = false;
1387 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
1388 mvmvif->deflink.ap_sta_id);
1389
1390 if (WARN_ON(!mvmsta)) {
1391 ret = -EIO;
1392 goto out_unlock;
1393 }
1394
1395 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
1396 if (mvm->mld_api_is_used)
1397 iwl_mvm_mld_mac_ctxt_changed(mvm, vif, false);
1398 else
1399 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1400
1401 if (!fw_has_capa(&mvm->fw->ucode_capa,
1402 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
1403 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1404 if (ret)
1405 goto out_unlock;
1406
1407 iwl_mvm_stop_session_protection(mvm, vif);
1408 }
1409 }
1410
1411 mvmvif->ps_disabled = false;
1412
1413 ret = iwl_mvm_power_update_ps(mvm);
1414
1415 out_unlock:
1416 if (mvmvif->csa_failed)
1417 ret = -EIO;
1418 mutex_unlock(&mvm->mutex);
1419
1420 return ret;
1421 }
1422
iwl_mvm_abort_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1423 void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw,
1424 struct ieee80211_vif *vif)
1425 {
1426 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1427 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1428 struct iwl_chan_switch_te_cmd cmd = {
1429 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
1430 mvmvif->color)),
1431 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),
1432 };
1433
1434 /*
1435 * In the new flow since FW is in charge of the timing,
1436 * if driver has canceled the channel switch he will receive the
1437 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it
1438 */
1439 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
1440 CHANNEL_SWITCH_ERROR_NOTIF, 0))
1441 return;
1442
1443 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id);
1444
1445 mutex_lock(&mvm->mutex);
1446 if (!fw_has_capa(&mvm->fw->ucode_capa,
1447 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
1448 iwl_mvm_remove_csa_period(mvm, vif);
1449 else
1450 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
1451 WIDE_ID(MAC_CONF_GROUP,
1452 CHANNEL_SWITCH_TIME_EVENT_CMD),
1453 0, sizeof(cmd), &cmd));
1454 mvmvif->csa_failed = true;
1455 mutex_unlock(&mvm->mutex);
1456
1457 iwl_mvm_post_channel_switch(hw, vif);
1458 }
1459
iwl_mvm_channel_switch_disconnect_wk(struct work_struct * wk)1460 void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk)
1461 {
1462 struct iwl_mvm_vif *mvmvif;
1463 struct ieee80211_vif *vif;
1464
1465 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work);
1466 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1467
1468 /* Trigger disconnect (should clear the CSA state) */
1469 ieee80211_chswitch_done(vif, false);
1470 }
1471
1472 static u8
iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def * chandef)1473 iwl_mvm_chandef_get_primary_80(struct cfg80211_chan_def *chandef)
1474 {
1475 int data_start;
1476 int control_start;
1477 int bw;
1478
1479 if (chandef->width == NL80211_CHAN_WIDTH_320)
1480 bw = 320;
1481 else if (chandef->width == NL80211_CHAN_WIDTH_160)
1482 bw = 160;
1483 else
1484 return 0;
1485
1486 /* data is bw wide so the start is half the width */
1487 data_start = chandef->center_freq1 - bw / 2;
1488 /* control is 20Mhz width */
1489 control_start = chandef->chan->center_freq - 10;
1490
1491 return (control_start - data_start) / 80;
1492 }
1493
iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1494 static int iwl_mvm_alloc_bcast_mcast_sta(struct iwl_mvm *mvm,
1495 struct ieee80211_vif *vif)
1496 {
1497 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1498 int ret;
1499
1500 lockdep_assert_held(&mvm->mutex);
1501
1502 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1503 if (ret) {
1504 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1505 return ret;
1506 }
1507
1508 /* Only queue for this station is the mcast queue,
1509 * which shouldn't be in TFD mask anyway
1510 */
1511 return iwl_mvm_allocate_int_sta(mvm, &mvmvif->deflink.mcast_sta, 0,
1512 vif->type,
1513 IWL_STA_MULTICAST);
1514 }
1515
iwl_mvm_mac_init_mvmvif(struct iwl_mvm * mvm,struct iwl_mvm_vif * mvmvif)1516 void iwl_mvm_mac_init_mvmvif(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif)
1517 {
1518 lockdep_assert_held(&mvm->mutex);
1519
1520 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1521 return;
1522
1523 INIT_DELAYED_WORK(&mvmvif->csa_work,
1524 iwl_mvm_channel_switch_disconnect_wk);
1525 }
1526
iwl_mvm_mac_add_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1527 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1528 struct ieee80211_vif *vif)
1529 {
1530 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1531 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1532 int ret;
1533
1534 mutex_lock(&mvm->mutex);
1535
1536 iwl_mvm_mac_init_mvmvif(mvm, mvmvif);
1537
1538 mvmvif->mvm = mvm;
1539
1540 /* the first link always points to the default one */
1541 mvmvif->link[0] = &mvmvif->deflink;
1542
1543 /*
1544 * Not much to do here. The stack will not allow interface
1545 * types or combinations that we didn't advertise, so we
1546 * don't really have to check the types.
1547 */
1548
1549 /* make sure that beacon statistics don't go backwards with FW reset */
1550 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1551 mvmvif->deflink.beacon_stats.accu_num_beacons +=
1552 mvmvif->deflink.beacon_stats.num_beacons;
1553
1554 /* Allocate resources for the MAC context, and add it to the fw */
1555 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1556 if (ret)
1557 goto out;
1558
1559 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif);
1560
1561 /* Currently not much to do for NAN */
1562 if (vif->type == NL80211_IFTYPE_NAN) {
1563 ret = 0;
1564 goto out;
1565 }
1566
1567 /*
1568 * The AP binding flow can be done only after the beacon
1569 * template is configured (which happens only in the mac80211
1570 * start_ap() flow), and adding the broadcast station can happen
1571 * only after the binding.
1572 * In addition, since modifying the MAC before adding a bcast
1573 * station is not allowed by the FW, delay the adding of MAC context to
1574 * the point where we can also add the bcast station.
1575 * In short: there's not much we can do at this point, other than
1576 * allocating resources :)
1577 */
1578 if (vif->type == NL80211_IFTYPE_AP ||
1579 vif->type == NL80211_IFTYPE_ADHOC) {
1580 iwl_mvm_vif_dbgfs_register(mvm, vif);
1581 ret = 0;
1582 goto out;
1583 }
1584
1585 mvmvif->features |= hw->netdev_features;
1586
1587 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1588 if (ret)
1589 goto out_unlock;
1590
1591 ret = iwl_mvm_power_update_mac(mvm);
1592 if (ret)
1593 goto out_remove_mac;
1594
1595 /* beacon filtering */
1596 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1597 if (ret)
1598 goto out_remove_mac;
1599
1600 if (!mvm->bf_allowed_vif &&
1601 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1602 mvm->bf_allowed_vif = mvmvif;
1603 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1604 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1605 }
1606
1607 if (vif->type == NL80211_IFTYPE_P2P_DEVICE)
1608 mvm->p2p_device_vif = vif;
1609
1610 iwl_mvm_tcm_add_vif(mvm, vif);
1611
1612 if (vif->type == NL80211_IFTYPE_MONITOR) {
1613 mvm->monitor_on = true;
1614 mvm->monitor_p80 =
1615 iwl_mvm_chandef_get_primary_80(&vif->bss_conf.chandef);
1616 }
1617
1618 iwl_mvm_vif_dbgfs_register(mvm, vif);
1619
1620 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
1621 vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1622 !mvm->csme_vif && mvm->mei_registered) {
1623 iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr);
1624 iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev);
1625 mvm->csme_vif = vif;
1626 }
1627
1628 out:
1629 if (!ret && (vif->type == NL80211_IFTYPE_AP ||
1630 vif->type == NL80211_IFTYPE_ADHOC))
1631 ret = iwl_mvm_alloc_bcast_mcast_sta(mvm, vif);
1632
1633 goto out_unlock;
1634
1635 if (mvm->bf_allowed_vif == mvmvif) {
1636 mvm->bf_allowed_vif = NULL;
1637 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1638 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1639 }
1640 out_remove_mac:
1641 mvmvif->deflink.phy_ctxt = NULL;
1642 iwl_mvm_mac_ctxt_remove(mvm, vif);
1643 out_unlock:
1644 mutex_unlock(&mvm->mutex);
1645
1646 return ret;
1647 }
1648
iwl_mvm_prepare_mac_removal(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1649 void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1650 struct ieee80211_vif *vif)
1651 {
1652 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1653
1654 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1655 /*
1656 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1657 * We assume here that all the packets sent to the OFFCHANNEL
1658 * queue are sent in ROC session.
1659 */
1660 flush_work(&mvm->roc_done_wk);
1661 }
1662
1663 cancel_delayed_work_sync(&mvmvif->csa_work);
1664 }
1665
1666 /* This function is doing the common part of removing the interface for
1667 * both - MLD and non-MLD modes. Returns true if removing the interface
1668 * is done
1669 */
iwl_mvm_mac_remove_interface_common(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1670 static bool iwl_mvm_mac_remove_interface_common(struct ieee80211_hw *hw,
1671 struct ieee80211_vif *vif)
1672 {
1673 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1674 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1675 struct iwl_probe_resp_data *probe_data;
1676
1677 iwl_mvm_prepare_mac_removal(mvm, vif);
1678
1679 if (!(vif->type == NL80211_IFTYPE_AP ||
1680 vif->type == NL80211_IFTYPE_ADHOC))
1681 iwl_mvm_tcm_rm_vif(mvm, vif);
1682
1683 mutex_lock(&mvm->mutex);
1684
1685 if (vif == mvm->csme_vif) {
1686 iwl_mei_set_netdev(NULL);
1687 mvm->csme_vif = NULL;
1688 }
1689
1690 probe_data = rcu_dereference_protected(mvmvif->deflink.probe_resp_data,
1691 lockdep_is_held(&mvm->mutex));
1692 RCU_INIT_POINTER(mvmvif->deflink.probe_resp_data, NULL);
1693 if (probe_data)
1694 kfree_rcu(probe_data, rcu_head);
1695
1696 if (mvm->bf_allowed_vif == mvmvif) {
1697 mvm->bf_allowed_vif = NULL;
1698 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1699 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1700 }
1701
1702 if (vif->bss_conf.ftm_responder)
1703 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats));
1704
1705 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1706
1707 /*
1708 * For AP/GO interface, the tear down of the resources allocated to the
1709 * interface is be handled as part of the stop_ap flow.
1710 */
1711 if (vif->type == NL80211_IFTYPE_AP ||
1712 vif->type == NL80211_IFTYPE_ADHOC) {
1713 #ifdef CONFIG_NL80211_TESTMODE
1714 if (vif == mvm->noa_vif) {
1715 mvm->noa_vif = NULL;
1716 mvm->noa_duration = 0;
1717 }
1718 #endif
1719 return true;
1720 }
1721
1722 iwl_mvm_power_update_mac(mvm);
1723 return false;
1724 }
1725
iwl_mvm_mac_remove_interface(struct ieee80211_hw * hw,struct ieee80211_vif * vif)1726 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1727 struct ieee80211_vif *vif)
1728 {
1729 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1730 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1731
1732 if (iwl_mvm_mac_remove_interface_common(hw, vif))
1733 goto out;
1734
1735 /* Before the interface removal, mac80211 would cancel the ROC, and the
1736 * ROC worker would be scheduled if needed. The worker would be flushed
1737 * in iwl_mvm_prepare_mac_removal() and thus at this point there is no
1738 * binding etc. so nothing needs to be done here.
1739 */
1740 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1741 if (mvmvif->deflink.phy_ctxt) {
1742 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->deflink.phy_ctxt);
1743 mvmvif->deflink.phy_ctxt = NULL;
1744 }
1745 mvm->p2p_device_vif = NULL;
1746 }
1747
1748 iwl_mvm_mac_ctxt_remove(mvm, vif);
1749
1750 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL);
1751
1752 if (vif->type == NL80211_IFTYPE_MONITOR)
1753 mvm->monitor_on = false;
1754
1755 out:
1756 if (vif->type == NL80211_IFTYPE_AP ||
1757 vif->type == NL80211_IFTYPE_ADHOC) {
1758 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->deflink.mcast_sta);
1759 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1760 }
1761
1762 mutex_unlock(&mvm->mutex);
1763 }
1764
1765 struct iwl_mvm_mc_iter_data {
1766 struct iwl_mvm *mvm;
1767 int port_id;
1768 };
1769
iwl_mvm_mc_iface_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)1770 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1771 struct ieee80211_vif *vif)
1772 {
1773 struct iwl_mvm_mc_iter_data *data = _data;
1774 struct iwl_mvm *mvm = data->mvm;
1775 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1776 struct iwl_host_cmd hcmd = {
1777 .id = MCAST_FILTER_CMD,
1778 .flags = CMD_ASYNC,
1779 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1780 };
1781 int ret, len;
1782
1783 /* if we don't have free ports, mcast frames will be dropped */
1784 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1785 return;
1786
1787 if (vif->type != NL80211_IFTYPE_STATION ||
1788 !vif->cfg.assoc)
1789 return;
1790
1791 cmd->port_id = data->port_id++;
1792 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1793 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1794
1795 hcmd.len[0] = len;
1796 hcmd.data[0] = cmd;
1797
1798 ret = iwl_mvm_send_cmd(mvm, &hcmd);
1799 if (ret)
1800 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1801 }
1802
iwl_mvm_recalc_multicast(struct iwl_mvm * mvm)1803 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1804 {
1805 struct iwl_mvm_mc_iter_data iter_data = {
1806 .mvm = mvm,
1807 };
1808 int ret;
1809
1810 lockdep_assert_held(&mvm->mutex);
1811
1812 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1813 return;
1814
1815 ieee80211_iterate_active_interfaces_atomic(
1816 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1817 iwl_mvm_mc_iface_iterator, &iter_data);
1818
1819 /*
1820 * Send a (synchronous) ech command so that we wait for the
1821 * multiple asynchronous MCAST_FILTER_CMD commands sent by
1822 * the interface iterator. Otherwise, we might get here over
1823 * and over again (by userspace just sending a lot of these)
1824 * and the CPU can send them faster than the firmware can
1825 * process them.
1826 * Note that the CPU is still faster - but with this we'll
1827 * actually send fewer commands overall because the CPU will
1828 * not schedule the work in mac80211 as frequently if it's
1829 * still running when rescheduled (possibly multiple times).
1830 */
1831 ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1832 if (ret)
1833 IWL_ERR(mvm, "Failed to synchronize multicast groups update\n");
1834 }
1835
iwl_mvm_prepare_multicast(struct ieee80211_hw * hw,struct netdev_hw_addr_list * mc_list)1836 u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1837 struct netdev_hw_addr_list *mc_list)
1838 {
1839 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1840 struct iwl_mcast_filter_cmd *cmd;
1841 struct netdev_hw_addr *addr;
1842 int addr_count;
1843 bool pass_all;
1844 int len;
1845
1846 addr_count = netdev_hw_addr_list_count(mc_list);
1847 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1848 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1849 if (pass_all)
1850 addr_count = 0;
1851
1852 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1853 cmd = kzalloc(len, GFP_ATOMIC);
1854 if (!cmd)
1855 return 0;
1856
1857 if (pass_all) {
1858 cmd->pass_all = 1;
1859 return (u64)(unsigned long)cmd;
1860 }
1861
1862 netdev_hw_addr_list_for_each(addr, mc_list) {
1863 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1864 cmd->count, addr->addr);
1865 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1866 addr->addr, ETH_ALEN);
1867 cmd->count++;
1868 }
1869
1870 return (u64)(unsigned long)cmd;
1871 }
1872
iwl_mvm_configure_filter(struct ieee80211_hw * hw,unsigned int changed_flags,unsigned int * total_flags,u64 multicast)1873 void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1874 unsigned int changed_flags,
1875 unsigned int *total_flags, u64 multicast)
1876 {
1877 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1878 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1879
1880 mutex_lock(&mvm->mutex);
1881
1882 /* replace previous configuration */
1883 kfree(mvm->mcast_filter_cmd);
1884 mvm->mcast_filter_cmd = cmd;
1885
1886 if (!cmd)
1887 goto out;
1888
1889 if (changed_flags & FIF_ALLMULTI)
1890 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
1891
1892 if (cmd->pass_all)
1893 cmd->count = 0;
1894
1895 iwl_mvm_recalc_multicast(mvm);
1896 out:
1897 mutex_unlock(&mvm->mutex);
1898 *total_flags = 0;
1899 }
1900
iwl_mvm_config_iface_filter(struct ieee80211_hw * hw,struct ieee80211_vif * vif,unsigned int filter_flags,unsigned int changed_flags)1901 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1902 struct ieee80211_vif *vif,
1903 unsigned int filter_flags,
1904 unsigned int changed_flags)
1905 {
1906 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1907
1908 /* We support only filter for probe requests */
1909 if (!(changed_flags & FIF_PROBE_REQ))
1910 return;
1911
1912 /* Supported only for p2p client interfaces */
1913 if (vif->type != NL80211_IFTYPE_STATION || !vif->cfg.assoc ||
1914 !vif->p2p)
1915 return;
1916
1917 mutex_lock(&mvm->mutex);
1918 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1919 mutex_unlock(&mvm->mutex);
1920 }
1921
iwl_mvm_update_mu_groups(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1922 int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1923 {
1924 struct iwl_mu_group_mgmt_cmd cmd = {};
1925
1926 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1927 WLAN_MEMBERSHIP_LEN);
1928 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1929 WLAN_USER_POSITION_LEN);
1930
1931 return iwl_mvm_send_cmd_pdu(mvm,
1932 WIDE_ID(DATA_PATH_GROUP,
1933 UPDATE_MU_GROUPS_CMD),
1934 0, sizeof(cmd), &cmd);
1935 }
1936
iwl_mvm_mu_mimo_iface_iterator(void * _data,u8 * mac,struct ieee80211_vif * vif)1937 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1938 struct ieee80211_vif *vif)
1939 {
1940 if (vif->bss_conf.mu_mimo_owner) {
1941 struct iwl_mu_group_mgmt_notif *notif = _data;
1942
1943 /*
1944 * MU-MIMO Group Id action frame is little endian. We treat
1945 * the data received from firmware as if it came from the
1946 * action frame, so no conversion is needed.
1947 */
1948 ieee80211_update_mu_groups(vif, 0,
1949 (u8 *)¬if->membership_status,
1950 (u8 *)¬if->user_position);
1951 }
1952 }
1953
iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)1954 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1955 struct iwl_rx_cmd_buffer *rxb)
1956 {
1957 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1958 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1959
1960 ieee80211_iterate_active_interfaces_atomic(
1961 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1962 iwl_mvm_mu_mimo_iface_iterator, notif);
1963 }
1964
iwl_mvm_he_get_ppe_val(u8 * ppe,u8 ppe_pos_bit)1965 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit)
1966 {
1967 u8 byte_num = ppe_pos_bit / 8;
1968 u8 bit_num = ppe_pos_bit % 8;
1969 u8 residue_bits;
1970 u8 res;
1971
1972 if (bit_num <= 5)
1973 return (ppe[byte_num] >> bit_num) &
1974 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1);
1975
1976 /*
1977 * If bit_num > 5, we have to combine bits with next byte.
1978 * Calculate how many bits we need to take from current byte (called
1979 * here "residue_bits"), and add them to bits from next byte.
1980 */
1981
1982 residue_bits = 8 - bit_num;
1983
1984 res = (ppe[byte_num + 1] &
1985 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) <<
1986 residue_bits;
1987 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1);
1988
1989 return res;
1990 }
1991
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)1992 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm,
1993 struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss,
1994 u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit,
1995 bool inheritance)
1996 {
1997 int i;
1998
1999 /*
2000 * FW currently supports only nss == MAX_HE_SUPP_NSS
2001 *
2002 * If nss > MAX: we can ignore values we don't support
2003 * If nss < MAX: we can set zeros in other streams
2004 */
2005 if (nss > MAX_HE_SUPP_NSS) {
2006 IWL_DEBUG_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,
2007 MAX_HE_SUPP_NSS);
2008 nss = MAX_HE_SUPP_NSS;
2009 }
2010
2011 for (i = 0; i < nss; i++) {
2012 u8 ru_index_tmp = ru_index_bitmap << 1;
2013 u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE;
2014 u8 bw;
2015
2016 for (bw = 0;
2017 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2018 bw++) {
2019 ru_index_tmp >>= 1;
2020
2021 /*
2022 * According to the 11be spec, if for a specific BW the PPE Thresholds
2023 * isn't present - it should inherit the thresholds from the last
2024 * BW for which we had PPE Thresholds. In 11ax though, we don't have
2025 * this inheritance - continue in this case
2026 */
2027 if (!(ru_index_tmp & 1)) {
2028 if (inheritance)
2029 goto set_thresholds;
2030 else
2031 continue;
2032 }
2033
2034 high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
2035 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2036 low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
2037 ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2038
2039 set_thresholds:
2040 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
2041 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
2042 }
2043 }
2044 }
2045
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)2046 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm,
2047 struct ieee80211_link_sta *link_sta,
2048 struct iwl_he_pkt_ext_v2 *pkt_ext,
2049 bool inheritance)
2050 {
2051 u8 nss = (link_sta->he_cap.ppe_thres[0] &
2052 IEEE80211_PPE_THRES_NSS_MASK) + 1;
2053 u8 *ppe = &link_sta->he_cap.ppe_thres[0];
2054 u8 ru_index_bitmap =
2055 u8_get_bits(*ppe,
2056 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
2057 /* Starting after PPE header */
2058 u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE;
2059
2060 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit,
2061 inheritance);
2062 }
2063
2064 static int
iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 * pkt_ext,u8 nominal_padding)2065 iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext,
2066 u8 nominal_padding)
2067 {
2068 int low_th = -1;
2069 int high_th = -1;
2070 int i;
2071
2072 /* all the macros are the same for EHT and HE */
2073 switch (nominal_padding) {
2074 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_0US:
2075 low_th = IWL_HE_PKT_EXT_NONE;
2076 high_th = IWL_HE_PKT_EXT_NONE;
2077 break;
2078 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US:
2079 low_th = IWL_HE_PKT_EXT_BPSK;
2080 high_th = IWL_HE_PKT_EXT_NONE;
2081 break;
2082 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_16US:
2083 case IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_20US:
2084 low_th = IWL_HE_PKT_EXT_NONE;
2085 high_th = IWL_HE_PKT_EXT_BPSK;
2086 break;
2087 }
2088
2089 if (low_th < 0 || high_th < 0)
2090 return -EINVAL;
2091
2092 /* Set the PPE thresholds accordingly */
2093 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2094 u8 bw;
2095
2096 for (bw = 0;
2097 bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2098 bw++) {
2099 pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
2100 pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
2101 }
2102 }
2103
2104 return 0;
2105 }
2106
iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 * pkt_ext,u8 nominal_padding)2107 static void iwl_mvm_get_optimal_ppe_info(struct iwl_he_pkt_ext_v2 *pkt_ext,
2108 u8 nominal_padding)
2109 {
2110 int i;
2111
2112 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2113 u8 bw;
2114
2115 for (bw = 0; bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
2116 bw++) {
2117 u8 *qam_th = &pkt_ext->pkt_ext_qam_th[i][bw][0];
2118
2119 if (nominal_padding >
2120 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&
2121 qam_th[1] == IWL_HE_PKT_EXT_NONE)
2122 qam_th[1] = IWL_HE_PKT_EXT_4096QAM;
2123 else if (nominal_padding ==
2124 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_8US &&
2125 qam_th[0] == IWL_HE_PKT_EXT_NONE &&
2126 qam_th[1] == IWL_HE_PKT_EXT_NONE)
2127 qam_th[0] = IWL_HE_PKT_EXT_4096QAM;
2128 }
2129 }
2130 }
2131
2132 /* 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)2133 int iwl_mvm_set_sta_pkt_ext(struct iwl_mvm *mvm,
2134 struct ieee80211_link_sta *link_sta,
2135 struct iwl_he_pkt_ext_v2 *pkt_ext)
2136 {
2137 u8 nominal_padding;
2138 int i, ret = 0;
2139
2140 if (WARN_ON(!link_sta))
2141 return -EINVAL;
2142
2143 /* Initialize the PPE thresholds to "None" (7), as described in Table
2144 * 9-262ac of 80211.ax/D3.0.
2145 */
2146 memset(pkt_ext, IWL_HE_PKT_EXT_NONE,
2147 sizeof(struct iwl_he_pkt_ext_v2));
2148
2149 if (link_sta->eht_cap.has_eht) {
2150 nominal_padding =
2151 u8_get_bits(link_sta->eht_cap.eht_cap_elem.phy_cap_info[5],
2152 IEEE80211_EHT_PHY_CAP5_COMMON_NOMINAL_PKT_PAD_MASK);
2153
2154 /* If PPE Thresholds exists, parse them into a FW-familiar
2155 * format.
2156 */
2157 if (link_sta->eht_cap.eht_cap_elem.phy_cap_info[5] &
2158 IEEE80211_EHT_PHY_CAP5_PPE_THRESHOLD_PRESENT) {
2159 u8 nss = (link_sta->eht_cap.eht_ppe_thres[0] &
2160 IEEE80211_EHT_PPE_THRES_NSS_MASK) + 1;
2161 u8 *ppe = &link_sta->eht_cap.eht_ppe_thres[0];
2162 u8 ru_index_bitmap =
2163 u16_get_bits(*ppe,
2164 IEEE80211_EHT_PPE_THRES_RU_INDEX_BITMASK_MASK);
2165 /* Starting after PPE header */
2166 u8 ppe_pos_bit = IEEE80211_EHT_PPE_THRES_INFO_HEADER_SIZE;
2167
2168 iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap,
2169 ppe, ppe_pos_bit, true);
2170 /* EHT PPE Thresholds doesn't exist - set the API according to
2171 * HE PPE Tresholds
2172 */
2173 } else if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &
2174 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2175 /* Even though HE Capabilities IE doesn't contain PPE
2176 * Thresholds for BW 320Mhz, thresholds for this BW will
2177 * be filled in with the same values as 160Mhz, due to
2178 * the inheritance, as required.
2179 */
2180 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,
2181 true);
2182
2183 /* According to the requirements, for MCSs 12-13 the
2184 * maximum value between HE PPE Threshold and Common
2185 * Nominal Packet Padding needs to be taken
2186 */
2187 iwl_mvm_get_optimal_ppe_info(pkt_ext, nominal_padding);
2188
2189 /* if PPE Thresholds doesn't present in both EHT IE and HE IE -
2190 * take the Thresholds from Common Nominal Packet Padding field
2191 */
2192 } else {
2193 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,
2194 nominal_padding);
2195 }
2196 } else if (link_sta->he_cap.has_he) {
2197 /* If PPE Thresholds exist, parse them into a FW-familiar format. */
2198 if (link_sta->he_cap.he_cap_elem.phy_cap_info[6] &
2199 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2200 iwl_mvm_set_pkt_ext_from_he_ppe(mvm, link_sta, pkt_ext,
2201 false);
2202 /* PPE Thresholds doesn't exist - set the API PPE values
2203 * according to Common Nominal Packet Padding field.
2204 */
2205 } else {
2206 nominal_padding =
2207 u8_get_bits(link_sta->he_cap.he_cap_elem.phy_cap_info[9],
2208 IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK);
2209 if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED)
2210 ret = iwl_mvm_set_pkt_ext_from_nominal_padding(pkt_ext,
2211 nominal_padding);
2212 }
2213 }
2214
2215 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2216 int bw;
2217
2218 for (bw = 0;
2219 bw < ARRAY_SIZE(*pkt_ext->pkt_ext_qam_th[i]);
2220 bw++) {
2221 u8 *qam_th =
2222 &pkt_ext->pkt_ext_qam_th[i][bw][0];
2223
2224 IWL_DEBUG_HT(mvm,
2225 "PPE table: nss[%d] bw[%d] PPET8 = %d, PPET16 = %d\n",
2226 i, bw, qam_th[0], qam_th[1]);
2227 }
2228 }
2229 return ret;
2230 }
2231
2232 /*
2233 * This function sets the MU EDCA parameters ans returns whether MU EDCA
2234 * is enabled or not
2235 */
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)2236 bool iwl_mvm_set_fw_mu_edca_params(struct iwl_mvm *mvm,
2237 const struct iwl_mvm_vif_link_info *link_info,
2238 struct iwl_he_backoff_conf *trig_based_txf)
2239 {
2240 int i;
2241 /* Mark MU EDCA as enabled, unless none detected on some AC */
2242 bool mu_edca_enabled = true;
2243
2244 for (i = 0; i < IEEE80211_NUM_ACS; i++) {
2245 const struct ieee80211_he_mu_edca_param_ac_rec *mu_edca =
2246 &link_info->queue_params[i].mu_edca_param_rec;
2247 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i);
2248
2249 if (!link_info->queue_params[i].mu_edca) {
2250 mu_edca_enabled = false;
2251 break;
2252 }
2253
2254 trig_based_txf[ac].cwmin =
2255 cpu_to_le16(mu_edca->ecw_min_max & 0xf);
2256 trig_based_txf[ac].cwmax =
2257 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4);
2258 trig_based_txf[ac].aifsn =
2259 cpu_to_le16(mu_edca->aifsn & 0xf);
2260 trig_based_txf[ac].mu_time =
2261 cpu_to_le16(mu_edca->mu_edca_timer);
2262 }
2263
2264 return mu_edca_enabled;
2265 }
2266
iwl_mvm_is_nic_ack_enabled(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2267 bool iwl_mvm_is_nic_ack_enabled(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
2268 {
2269 const struct ieee80211_supported_band *sband;
2270 const struct ieee80211_sta_he_cap *own_he_cap = NULL;
2271
2272 /* This capability is the same for all bands,
2273 * so take it from one of them.
2274 */
2275 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
2276 own_he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
2277
2278 return (own_he_cap && (own_he_cap->he_cap_elem.mac_cap_info[2] &
2279 IEEE80211_HE_MAC_CAP2_ACK_EN));
2280 }
2281
iwl_mvm_get_sta_htc_flags(struct ieee80211_sta * sta,struct ieee80211_link_sta * link_sta)2282 __le32 iwl_mvm_get_sta_htc_flags(struct ieee80211_sta *sta,
2283 struct ieee80211_link_sta *link_sta)
2284 {
2285 u8 *mac_cap_info =
2286 &link_sta->he_cap.he_cap_elem.mac_cap_info[0];
2287 __le32 htc_flags = 0;
2288
2289 if (mac_cap_info[0] & IEEE80211_HE_MAC_CAP0_HTC_HE)
2290 htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT);
2291 if ((mac_cap_info[1] & IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) ||
2292 (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) {
2293 u8 link_adap =
2294 ((mac_cap_info[2] &
2295 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) +
2296 (mac_cap_info[1] &
2297 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION);
2298
2299 if (link_adap == 2)
2300 htc_flags |=
2301 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED);
2302 else if (link_adap == 3)
2303 htc_flags |= cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH);
2304 }
2305 if (mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR)
2306 htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP);
2307 if (mac_cap_info[3] & IEEE80211_HE_MAC_CAP3_OMI_CONTROL)
2308 htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP);
2309 if (mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR)
2310 htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP);
2311
2312 return htc_flags;
2313 }
2314
iwl_mvm_cfg_he_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u8 sta_id)2315 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm,
2316 struct ieee80211_vif *vif, u8 sta_id)
2317 {
2318 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2319 struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = {
2320 .sta_id = sta_id,
2321 .tid_limit = IWL_MAX_TID_COUNT,
2322 .bss_color = vif->bss_conf.he_bss_color.color,
2323 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext,
2324 .frame_time_rts_th =
2325 cpu_to_le16(vif->bss_conf.frame_time_rts_th),
2326 };
2327 struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {};
2328 u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD);
2329 u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2);
2330 int size;
2331 struct ieee80211_sta *sta;
2332 u32 flags;
2333 int i;
2334 void *cmd;
2335
2336 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE))
2337 ver = 1;
2338
2339 switch (ver) {
2340 case 1:
2341 /* same layout as v2 except some data at the end */
2342 cmd = &sta_ctxt_cmd_v2;
2343 size = sizeof(struct iwl_he_sta_context_cmd_v1);
2344 break;
2345 case 2:
2346 cmd = &sta_ctxt_cmd_v2;
2347 size = sizeof(struct iwl_he_sta_context_cmd_v2);
2348 break;
2349 case 3:
2350 cmd = &sta_ctxt_cmd;
2351 size = sizeof(struct iwl_he_sta_context_cmd_v3);
2352 break;
2353 default:
2354 IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver);
2355 return;
2356 }
2357
2358 rcu_read_lock();
2359
2360 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]);
2361 if (IS_ERR_OR_NULL(sta)) {
2362 rcu_read_unlock();
2363 WARN(1, "Can't find STA to configure HE\n");
2364 return;
2365 }
2366
2367 if (!sta->deflink.he_cap.has_he) {
2368 rcu_read_unlock();
2369 return;
2370 }
2371
2372 flags = 0;
2373
2374 /* Block 26-tone RU OFDMA transmissions */
2375 if (mvmvif->deflink.he_ru_2mhz_block)
2376 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK;
2377
2378 /* HTC flags */
2379 sta_ctxt_cmd.htc_flags = iwl_mvm_get_sta_htc_flags(sta, &sta->deflink);
2380
2381 /* PPE Thresholds */
2382 if (!iwl_mvm_set_sta_pkt_ext(mvm, &sta->deflink, &sta_ctxt_cmd.pkt_ext))
2383 flags |= STA_CTXT_HE_PACKET_EXT;
2384
2385 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2386 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP)
2387 flags |= STA_CTXT_HE_32BIT_BA_BITMAP;
2388
2389 if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2390 IEEE80211_HE_MAC_CAP2_ACK_EN)
2391 flags |= STA_CTXT_HE_ACK_ENABLED;
2392
2393 rcu_read_unlock();
2394
2395 if (iwl_mvm_set_fw_mu_edca_params(mvm, &mvmvif->deflink,
2396 &sta_ctxt_cmd.trig_based_txf[0]))
2397 flags |= STA_CTXT_HE_MU_EDCA_CW;
2398
2399 if (vif->bss_conf.uora_exists) {
2400 flags |= STA_CTXT_HE_TRIG_RND_ALLOC;
2401
2402 sta_ctxt_cmd.rand_alloc_ecwmin =
2403 vif->bss_conf.uora_ocw_range & 0x7;
2404 sta_ctxt_cmd.rand_alloc_ecwmax =
2405 (vif->bss_conf.uora_ocw_range >> 3) & 0x7;
2406 }
2407
2408 if (!iwl_mvm_is_nic_ack_enabled(mvm, vif))
2409 flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED;
2410
2411 if (vif->bss_conf.nontransmitted) {
2412 flags |= STA_CTXT_HE_REF_BSSID_VALID;
2413 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr,
2414 vif->bss_conf.transmitter_bssid);
2415 sta_ctxt_cmd.max_bssid_indicator =
2416 vif->bss_conf.bssid_indicator;
2417 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index;
2418 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap;
2419 sta_ctxt_cmd.profile_periodicity =
2420 vif->bss_conf.profile_periodicity;
2421 }
2422
2423 sta_ctxt_cmd.flags = cpu_to_le32(flags);
2424
2425 if (ver < 3) {
2426 /* fields before pkt_ext */
2427 BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) !=
2428 offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext));
2429 memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd,
2430 offsetof(typeof(sta_ctxt_cmd), pkt_ext));
2431
2432 /* pkt_ext */
2433 for (i = 0;
2434 i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th);
2435 i++) {
2436 u8 bw;
2437
2438 for (bw = 0;
2439 bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]);
2440 bw++) {
2441 BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) !=
2442 sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw]));
2443
2444 memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw],
2445 &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw],
2446 sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]));
2447 }
2448 }
2449
2450 /* fields after pkt_ext */
2451 BUILD_BUG_ON(sizeof(sta_ctxt_cmd) -
2452 offsetofend(typeof(sta_ctxt_cmd), pkt_ext) !=
2453 sizeof(sta_ctxt_cmd_v2) -
2454 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext));
2455 memcpy((u8 *)&sta_ctxt_cmd_v2 +
2456 offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext),
2457 (u8 *)&sta_ctxt_cmd +
2458 offsetofend(typeof(sta_ctxt_cmd), pkt_ext),
2459 sizeof(sta_ctxt_cmd) -
2460 offsetofend(typeof(sta_ctxt_cmd), pkt_ext));
2461 sta_ctxt_cmd_v2.reserved3 = 0;
2462 }
2463
2464 if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd))
2465 IWL_ERR(mvm, "Failed to config FW to work HE!\n");
2466 }
2467
iwl_mvm_protect_assoc(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u32 duration_override)2468 void iwl_mvm_protect_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2469 u32 duration_override)
2470 {
2471 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2472 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
2473
2474 if (duration_override > duration)
2475 duration = duration_override;
2476
2477 /* Try really hard to protect the session and hear a beacon
2478 * The new session protection command allows us to protect the
2479 * session for a much longer time since the firmware will internally
2480 * create two events: a 300TU one with a very high priority that
2481 * won't be fragmented which should be enough for 99% of the cases,
2482 * and another one (which we configure here to be 900TU long) which
2483 * will have a slightly lower priority, but more importantly, can be
2484 * fragmented so that it'll allow other activities to run.
2485 */
2486 if (fw_has_capa(&mvm->fw->ucode_capa,
2487 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD))
2488 iwl_mvm_schedule_session_protection(mvm, vif, 900,
2489 min_duration, false);
2490 else
2491 iwl_mvm_protect_session(mvm, vif, duration,
2492 min_duration, 500, false);
2493 }
2494
2495 /* 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)2496 void iwl_mvm_bss_info_changed_station_assoc(struct iwl_mvm *mvm,
2497 struct ieee80211_vif *vif,
2498 u64 changes)
2499 {
2500 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2501 int ret;
2502
2503 /* The firmware tracks the MU-MIMO group on its own.
2504 * However, on HW restart we should restore this data.
2505 */
2506 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2507 (changes & BSS_CHANGED_MU_GROUPS) && vif->bss_conf.mu_mimo_owner) {
2508 ret = iwl_mvm_update_mu_groups(mvm, vif);
2509 if (ret)
2510 IWL_ERR(mvm,
2511 "failed to update VHT MU_MIMO groups\n");
2512 }
2513
2514 iwl_mvm_recalc_multicast(mvm);
2515
2516 /* reset rssi values */
2517 mvmvif->bf_data.ave_beacon_signal = 0;
2518
2519 iwl_mvm_bt_coex_vif_change(mvm);
2520 iwl_mvm_update_smps_on_active_links(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2521 IEEE80211_SMPS_AUTOMATIC);
2522 if (fw_has_capa(&mvm->fw->ucode_capa,
2523 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2524 iwl_mvm_config_scan(mvm);
2525 }
2526
2527 /* Execute the common part for MLD and non-MLD modes */
2528 void
iwl_mvm_bss_info_changed_station_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,u64 changes)2529 iwl_mvm_bss_info_changed_station_common(struct iwl_mvm *mvm,
2530 struct ieee80211_vif *vif,
2531 struct ieee80211_bss_conf *link_conf,
2532 u64 changes)
2533 {
2534 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2535 int ret;
2536
2537 if (changes & BSS_CHANGED_BEACON_INFO) {
2538 /* We received a beacon from the associated AP so
2539 * remove the session protection.
2540 */
2541 iwl_mvm_stop_session_protection(mvm, vif);
2542
2543 iwl_mvm_sf_update(mvm, vif, false);
2544 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2545 }
2546
2547 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2548 /* Send power command on every beacon change,
2549 * because we may have not enabled beacon abort yet.
2550 */
2551 BSS_CHANGED_BEACON_INFO)) {
2552 ret = iwl_mvm_power_update_mac(mvm);
2553 if (ret)
2554 IWL_ERR(mvm, "failed to update power mode\n");
2555 }
2556
2557 if (changes & BSS_CHANGED_CQM) {
2558 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
2559 /* reset cqm events tracking */
2560 mvmvif->bf_data.last_cqm_event = 0;
2561 if (mvmvif->bf_data.bf_enabled) {
2562 /* FIXME: need to update per link when FW API will
2563 * support it
2564 */
2565 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2566 if (ret)
2567 IWL_ERR(mvm,
2568 "failed to update CQM thresholds\n");
2569 }
2570 }
2571
2572 if (changes & BSS_CHANGED_BANDWIDTH)
2573 iwl_mvm_update_link_smps(vif, link_conf);
2574 }
2575
iwl_mvm_bss_info_changed_station(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf,u64 changes)2576 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2577 struct ieee80211_vif *vif,
2578 struct ieee80211_bss_conf *bss_conf,
2579 u64 changes)
2580 {
2581 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2582 int ret;
2583
2584 /*
2585 * Re-calculate the tsf id, as the leader-follower relations depend
2586 * on the beacon interval, which was not known when the station
2587 * interface was added.
2588 */
2589 if (changes & BSS_CHANGED_ASSOC && vif->cfg.assoc) {
2590 if ((vif->bss_conf.he_support &&
2591 !iwlwifi_mod_params.disable_11ax) ||
2592 (vif->bss_conf.eht_support &&
2593 !iwlwifi_mod_params.disable_11be))
2594 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);
2595
2596 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2597 }
2598
2599 /* Update MU EDCA params */
2600 if (changes & BSS_CHANGED_QOS && mvmvif->associated &&
2601 vif->cfg.assoc &&
2602 ((vif->bss_conf.he_support &&
2603 !iwlwifi_mod_params.disable_11ax) ||
2604 (vif->bss_conf.eht_support &&
2605 !iwlwifi_mod_params.disable_11be)))
2606 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->deflink.ap_sta_id);
2607
2608 /*
2609 * If we're not associated yet, take the (new) BSSID before associating
2610 * so the firmware knows. If we're already associated, then use the old
2611 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2612 * branch for disassociation below.
2613 */
2614 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2615 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);
2616
2617 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->deflink.bssid);
2618 if (ret)
2619 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2620
2621 /* after sending it once, adopt mac80211 data */
2622 memcpy(mvmvif->deflink.bssid, bss_conf->bssid, ETH_ALEN);
2623 mvmvif->associated = vif->cfg.assoc;
2624
2625 if (changes & BSS_CHANGED_ASSOC) {
2626 if (vif->cfg.assoc) {
2627 /* clear statistics to get clean beacon counter */
2628 iwl_mvm_request_statistics(mvm, true);
2629 memset(&mvmvif->deflink.beacon_stats, 0,
2630 sizeof(mvmvif->deflink.beacon_stats));
2631
2632 /* add quota for this interface */
2633 ret = iwl_mvm_update_quotas(mvm, true, NULL);
2634 if (ret) {
2635 IWL_ERR(mvm, "failed to update quotas\n");
2636 return;
2637 }
2638
2639 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2640 &mvm->status) &&
2641 !fw_has_capa(&mvm->fw->ucode_capa,
2642 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {
2643 /*
2644 * If we're restarting then the firmware will
2645 * obviously have lost synchronisation with
2646 * the AP. It will attempt to synchronise by
2647 * itself, but we can make it more reliable by
2648 * scheduling a session protection time event.
2649 *
2650 * The firmware needs to receive a beacon to
2651 * catch up with synchronisation, use 110% of
2652 * the beacon interval.
2653 *
2654 * Set a large maximum delay to allow for more
2655 * than a single interface.
2656 *
2657 * For new firmware versions, rely on the
2658 * firmware. This is relevant for DCM scenarios
2659 * only anyway.
2660 */
2661 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2662 iwl_mvm_protect_session(mvm, vif, dur, dur,
2663 5 * dur, false);
2664 } else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2665 &mvm->status) &&
2666 !vif->bss_conf.dtim_period) {
2667 /*
2668 * If we're not restarting and still haven't
2669 * heard a beacon (dtim period unknown) then
2670 * make sure we still have enough minimum time
2671 * remaining in the time event, since the auth
2672 * might actually have taken quite a while
2673 * (especially for SAE) and so the remaining
2674 * time could be small without us having heard
2675 * a beacon yet.
2676 */
2677 iwl_mvm_protect_assoc(mvm, vif, 0);
2678 }
2679
2680 iwl_mvm_sf_update(mvm, vif, false);
2681 iwl_mvm_power_vif_assoc(mvm, vif);
2682 if (vif->p2p) {
2683 iwl_mvm_update_smps(mvm, vif,
2684 IWL_MVM_SMPS_REQ_PROT,
2685 IEEE80211_SMPS_DYNAMIC, 0);
2686 }
2687 } else if (mvmvif->deflink.ap_sta_id != IWL_MVM_INVALID_STA) {
2688 iwl_mvm_mei_host_disassociated(mvm);
2689 /*
2690 * If update fails - SF might be running in associated
2691 * mode while disassociated - which is forbidden.
2692 */
2693 ret = iwl_mvm_sf_update(mvm, vif, false);
2694 WARN_ONCE(ret &&
2695 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
2696 &mvm->status),
2697 "Failed to update SF upon disassociation\n");
2698
2699 /*
2700 * If we get an assert during the connection (after the
2701 * station has been added, but before the vif is set
2702 * to associated), mac80211 will re-add the station and
2703 * then configure the vif. Since the vif is not
2704 * associated, we would remove the station here and
2705 * this would fail the recovery.
2706 */
2707 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2708 &mvm->status)) {
2709 /* first remove remaining keys */
2710 iwl_mvm_sec_key_remove_ap(mvm, vif,
2711 &mvmvif->deflink, 0);
2712
2713 /*
2714 * Remove AP station now that
2715 * the MAC is unassoc
2716 */
2717 ret = iwl_mvm_rm_sta_id(mvm, vif,
2718 mvmvif->deflink.ap_sta_id);
2719 if (ret)
2720 IWL_ERR(mvm,
2721 "failed to remove AP station\n");
2722
2723 mvmvif->deflink.ap_sta_id = IWL_MVM_INVALID_STA;
2724 }
2725
2726 /* remove quota for this interface */
2727 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2728 if (ret)
2729 IWL_ERR(mvm, "failed to update quotas\n");
2730
2731 /* this will take the cleared BSSID from bss_conf */
2732 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2733 if (ret)
2734 IWL_ERR(mvm,
2735 "failed to update MAC %pM (clear after unassoc)\n",
2736 vif->addr);
2737 }
2738
2739 iwl_mvm_bss_info_changed_station_assoc(mvm, vif, changes);
2740 }
2741
2742 iwl_mvm_bss_info_changed_station_common(mvm, vif, &vif->bss_conf,
2743 changes);
2744 }
2745
iwl_mvm_start_ap_ibss_common(struct ieee80211_hw * hw,struct ieee80211_vif * vif,int * ret)2746 bool iwl_mvm_start_ap_ibss_common(struct ieee80211_hw *hw,
2747 struct ieee80211_vif *vif,
2748 int *ret)
2749 {
2750 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2751 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2752 int i;
2753
2754 lockdep_assert_held(&mvm->mutex);
2755
2756 mvmvif->ap_assoc_sta_count = 0;
2757
2758 /* must be set before quota calculations */
2759 mvmvif->ap_ibss_active = true;
2760
2761 /* send all the early keys to the device now */
2762 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
2763 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i];
2764
2765 if (!key)
2766 continue;
2767
2768 mvmvif->ap_early_keys[i] = NULL;
2769
2770 *ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key);
2771 if (*ret)
2772 return true;
2773 }
2774
2775 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2776 iwl_mvm_vif_set_low_latency(mvmvif, true,
2777 LOW_LATENCY_VIF_TYPE);
2778 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);
2779 }
2780
2781 /* power updated needs to be done before quotas */
2782 iwl_mvm_power_update_mac(mvm);
2783
2784 return false;
2785 }
2786
iwl_mvm_start_ap_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)2787 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2788 struct ieee80211_vif *vif,
2789 struct ieee80211_bss_conf *link_conf)
2790 {
2791 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2792 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2793 int ret;
2794
2795 mutex_lock(&mvm->mutex);
2796
2797 /*
2798 * Re-calculate the tsf id, as the leader-follower relations depend on
2799 * the beacon interval, which was not known when the AP interface
2800 * was added.
2801 */
2802 if (vif->type == NL80211_IFTYPE_AP)
2803 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2804
2805 /* For older devices need to send beacon template before adding mac
2806 * context. For the newer, the beacon is a resource that belongs to a
2807 * MAC, so need to send beacon template after adding the mac.
2808 */
2809 if (mvm->trans->trans_cfg->device_family > IWL_DEVICE_FAMILY_22000) {
2810 /* Add the mac context */
2811 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2812 if (ret)
2813 goto out_unlock;
2814
2815 /* Send the beacon template */
2816 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
2817 if (ret)
2818 goto out_unlock;
2819 } else {
2820 /* Send the beacon template */
2821 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, link_conf);
2822 if (ret)
2823 goto out_unlock;
2824
2825 /* Add the mac context */
2826 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2827 if (ret)
2828 goto out_unlock;
2829 }
2830
2831 /* Perform the binding */
2832 ret = iwl_mvm_binding_add_vif(mvm, vif);
2833 if (ret)
2834 goto out_remove;
2835
2836 /*
2837 * This is not very nice, but the simplest:
2838 * For older FWs adding the mcast sta before the bcast station may
2839 * cause assert 0x2b00.
2840 * This is fixed in later FW so make the order of removal depend on
2841 * the TLV
2842 */
2843 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
2844 ret = iwl_mvm_add_mcast_sta(mvm, vif);
2845 if (ret)
2846 goto out_unbind;
2847 /*
2848 * Send the bcast station. At this stage the TBTT and DTIM time
2849 * events are added and applied to the scheduler
2850 */
2851 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2852 if (ret) {
2853 iwl_mvm_rm_mcast_sta(mvm, vif);
2854 goto out_unbind;
2855 }
2856 } else {
2857 /*
2858 * Send the bcast station. At this stage the TBTT and DTIM time
2859 * events are added and applied to the scheduler
2860 */
2861 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2862 if (ret)
2863 goto out_unbind;
2864 ret = iwl_mvm_add_mcast_sta(mvm, vif);
2865 if (ret) {
2866 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2867 goto out_unbind;
2868 }
2869 }
2870
2871 if (iwl_mvm_start_ap_ibss_common(hw, vif, &ret))
2872 goto out_failed;
2873
2874 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2875 if (ret)
2876 goto out_failed;
2877
2878 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2879 if (vif->p2p && mvm->p2p_device_vif)
2880 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2881
2882 iwl_mvm_bt_coex_vif_change(mvm);
2883
2884 /* we don't support TDLS during DCM */
2885 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2886 iwl_mvm_teardown_tdls_peers(mvm);
2887
2888 iwl_mvm_ftm_restart_responder(mvm, vif, &vif->bss_conf);
2889
2890 goto out_unlock;
2891
2892 out_failed:
2893 iwl_mvm_power_update_mac(mvm);
2894 mvmvif->ap_ibss_active = false;
2895 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2896 iwl_mvm_rm_mcast_sta(mvm, vif);
2897 out_unbind:
2898 iwl_mvm_binding_remove_vif(mvm, vif);
2899 out_remove:
2900 iwl_mvm_mac_ctxt_remove(mvm, vif);
2901 out_unlock:
2902 mutex_unlock(&mvm->mutex);
2903 return ret;
2904 }
2905
iwl_mvm_start_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)2906 static int iwl_mvm_start_ap(struct ieee80211_hw *hw,
2907 struct ieee80211_vif *vif,
2908 struct ieee80211_bss_conf *link_conf)
2909 {
2910 return iwl_mvm_start_ap_ibss(hw, vif, link_conf);
2911 }
2912
iwl_mvm_start_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif)2913 static int iwl_mvm_start_ibss(struct ieee80211_hw *hw,
2914 struct ieee80211_vif *vif)
2915 {
2916 return iwl_mvm_start_ap_ibss(hw, vif, &vif->bss_conf);
2917 }
2918
2919 /* Common part for MLD and non-MLD ops */
iwl_mvm_stop_ap_ibss_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif)2920 void iwl_mvm_stop_ap_ibss_common(struct iwl_mvm *mvm,
2921 struct ieee80211_vif *vif)
2922 {
2923 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2924
2925 lockdep_assert_held(&mvm->mutex);
2926
2927 iwl_mvm_prepare_mac_removal(mvm, vif);
2928
2929 /* Handle AP stop while in CSA */
2930 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2931 iwl_mvm_remove_time_event(mvm, mvmvif,
2932 &mvmvif->time_event_data);
2933 RCU_INIT_POINTER(mvm->csa_vif, NULL);
2934 mvmvif->csa_countdown = false;
2935 }
2936
2937 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2938 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2939 mvm->csa_tx_block_bcn_timeout = 0;
2940 }
2941
2942 mvmvif->ap_ibss_active = false;
2943 mvm->ap_last_beacon_gp2 = 0;
2944
2945 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2946 iwl_mvm_vif_set_low_latency(mvmvif, false,
2947 LOW_LATENCY_VIF_TYPE);
2948 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id);
2949 }
2950
2951 iwl_mvm_bt_coex_vif_change(mvm);
2952 }
2953
iwl_mvm_stop_ap_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)2954 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2955 struct ieee80211_vif *vif,
2956 struct ieee80211_bss_conf *link_conf)
2957 {
2958 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2959
2960 mutex_lock(&mvm->mutex);
2961
2962 iwl_mvm_stop_ap_ibss_common(mvm, vif);
2963
2964 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2965 if (vif->p2p && mvm->p2p_device_vif)
2966 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2967
2968 iwl_mvm_update_quotas(mvm, false, NULL);
2969
2970 iwl_mvm_ftm_responder_clear(mvm, vif);
2971
2972 /*
2973 * This is not very nice, but the simplest:
2974 * For older FWs removing the mcast sta before the bcast station may
2975 * cause assert 0x2b00.
2976 * This is fixed in later FW (which will stop beaconing when removing
2977 * bcast station).
2978 * So make the order of removal depend on the TLV
2979 */
2980 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2981 iwl_mvm_rm_mcast_sta(mvm, vif);
2982 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2983 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2984 iwl_mvm_rm_mcast_sta(mvm, vif);
2985 iwl_mvm_binding_remove_vif(mvm, vif);
2986
2987 iwl_mvm_power_update_mac(mvm);
2988
2989 iwl_mvm_mac_ctxt_remove(mvm, vif);
2990
2991 mutex_unlock(&mvm->mutex);
2992 }
2993
iwl_mvm_stop_ap(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf)2994 static void iwl_mvm_stop_ap(struct ieee80211_hw *hw,
2995 struct ieee80211_vif *vif,
2996 struct ieee80211_bss_conf *link_conf)
2997 {
2998 iwl_mvm_stop_ap_ibss(hw, vif, link_conf);
2999 }
3000
iwl_mvm_stop_ibss(struct ieee80211_hw * hw,struct ieee80211_vif * vif)3001 static void iwl_mvm_stop_ibss(struct ieee80211_hw *hw,
3002 struct ieee80211_vif *vif)
3003 {
3004 iwl_mvm_stop_ap_ibss(hw, vif, &vif->bss_conf);
3005 }
3006
3007 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)3008 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
3009 struct ieee80211_vif *vif,
3010 struct ieee80211_bss_conf *bss_conf,
3011 u64 changes)
3012 {
3013 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3014
3015 /* Changes will be applied when the AP/IBSS is started */
3016 if (!mvmvif->ap_ibss_active)
3017 return;
3018
3019 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
3020 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3021 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
3022 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
3023
3024 /* Need to send a new beacon template to the FW */
3025 if (changes & BSS_CHANGED_BEACON &&
3026 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif, &vif->bss_conf))
3027 IWL_WARN(mvm, "Failed updating beacon data\n");
3028
3029 if (changes & BSS_CHANGED_FTM_RESPONDER) {
3030 int ret = iwl_mvm_ftm_start_responder(mvm, vif, &vif->bss_conf);
3031
3032 if (ret)
3033 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n",
3034 ret);
3035 }
3036
3037 }
3038
iwl_mvm_bss_info_changed(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf,u64 changes)3039 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
3040 struct ieee80211_vif *vif,
3041 struct ieee80211_bss_conf *bss_conf,
3042 u64 changes)
3043 {
3044 static const struct iwl_mvm_bss_info_changed_ops callbacks = {
3045 .bss_info_changed_sta = iwl_mvm_bss_info_changed_station,
3046 .bss_info_changed_ap_ibss = iwl_mvm_bss_info_changed_ap_ibss,
3047 };
3048
3049 iwl_mvm_bss_info_changed_common(hw, vif, bss_conf, &callbacks,
3050 changes);
3051 }
3052
3053 void
iwl_mvm_bss_info_changed_common(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * bss_conf,const struct iwl_mvm_bss_info_changed_ops * callbacks,u64 changes)3054 iwl_mvm_bss_info_changed_common(struct ieee80211_hw *hw,
3055 struct ieee80211_vif *vif,
3056 struct ieee80211_bss_conf *bss_conf,
3057 const struct iwl_mvm_bss_info_changed_ops *callbacks,
3058 u64 changes)
3059 {
3060 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3061
3062 mutex_lock(&mvm->mutex);
3063
3064 if (changes & BSS_CHANGED_IDLE && !vif->cfg.idle)
3065 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
3066
3067 switch (vif->type) {
3068 case NL80211_IFTYPE_STATION:
3069 callbacks->bss_info_changed_sta(mvm, vif, bss_conf, changes);
3070 break;
3071 case NL80211_IFTYPE_AP:
3072 case NL80211_IFTYPE_ADHOC:
3073 callbacks->bss_info_changed_ap_ibss(mvm, vif, bss_conf,
3074 changes);
3075 break;
3076 case NL80211_IFTYPE_MONITOR:
3077 if (changes & BSS_CHANGED_MU_GROUPS)
3078 iwl_mvm_update_mu_groups(mvm, vif);
3079 break;
3080 default:
3081 /* shouldn't happen */
3082 WARN_ON_ONCE(1);
3083 }
3084
3085 if (changes & BSS_CHANGED_TXPOWER) {
3086 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n",
3087 bss_conf->txpower);
3088 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
3089 }
3090
3091 mutex_unlock(&mvm->mutex);
3092 }
3093
iwl_mvm_mac_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_scan_request * hw_req)3094 int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3095 struct ieee80211_scan_request *hw_req)
3096 {
3097 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3098 int ret;
3099
3100 if (hw_req->req.n_channels == 0 ||
3101 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
3102 return -EINVAL;
3103
3104 mutex_lock(&mvm->mutex);
3105 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
3106 mutex_unlock(&mvm->mutex);
3107
3108 return ret;
3109 }
3110
iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw * hw,struct ieee80211_vif * vif)3111 void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
3112 struct ieee80211_vif *vif)
3113 {
3114 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3115
3116 mutex_lock(&mvm->mutex);
3117
3118 /* Due to a race condition, it's possible that mac80211 asks
3119 * us to stop a hw_scan when it's already stopped. This can
3120 * happen, for instance, if we stopped the scan ourselves,
3121 * called ieee80211_scan_completed() and the userspace called
3122 * cancel scan scan before ieee80211_scan_work() could run.
3123 * To handle that, simply return if the scan is not running.
3124 */
3125 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
3126 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
3127
3128 mutex_unlock(&mvm->mutex);
3129 }
3130
3131 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)3132 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3133 struct ieee80211_sta *sta, u16 tids,
3134 int num_frames,
3135 enum ieee80211_frame_release_type reason,
3136 bool more_data)
3137 {
3138 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3139
3140 /* Called when we need to transmit (a) frame(s) from mac80211 */
3141
3142 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
3143 tids, more_data, false);
3144 }
3145
3146 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)3147 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
3148 struct ieee80211_sta *sta, u16 tids,
3149 int num_frames,
3150 enum ieee80211_frame_release_type reason,
3151 bool more_data)
3152 {
3153 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3154
3155 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
3156
3157 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
3158 tids, more_data, true);
3159 }
3160
__iwl_mvm_mac_sta_notify(struct ieee80211_hw * hw,enum sta_notify_cmd cmd,struct ieee80211_sta * sta)3161 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
3162 enum sta_notify_cmd cmd,
3163 struct ieee80211_sta *sta)
3164 {
3165 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3166 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3167 unsigned long txqs = 0, tids = 0;
3168 int tid;
3169
3170 /*
3171 * If we have TVQM then we get too high queue numbers - luckily
3172 * we really shouldn't get here with that because such hardware
3173 * should have firmware supporting buffer station offload.
3174 */
3175 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
3176 return;
3177
3178 spin_lock_bh(&mvmsta->lock);
3179 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) {
3180 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
3181
3182 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
3183 continue;
3184
3185 __set_bit(tid_data->txq_id, &txqs);
3186
3187 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
3188 continue;
3189
3190 __set_bit(tid, &tids);
3191 }
3192
3193 switch (cmd) {
3194 case STA_NOTIFY_SLEEP:
3195 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3196 ieee80211_sta_set_buffered(sta, tid, true);
3197
3198 if (txqs)
3199 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
3200 /*
3201 * The fw updates the STA to be asleep. Tx packets on the Tx
3202 * queues to this station will not be transmitted. The fw will
3203 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
3204 */
3205 break;
3206 case STA_NOTIFY_AWAKE:
3207 if (WARN_ON(mvmsta->deflink.sta_id == IWL_MVM_INVALID_STA))
3208 break;
3209
3210 if (txqs)
3211 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
3212 iwl_mvm_sta_modify_ps_wake(mvm, sta);
3213 break;
3214 default:
3215 break;
3216 }
3217 spin_unlock_bh(&mvmsta->lock);
3218 }
3219
iwl_mvm_mac_sta_notify(struct ieee80211_hw * hw,struct ieee80211_vif * vif,enum sta_notify_cmd cmd,struct ieee80211_sta * sta)3220 void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3221 enum sta_notify_cmd cmd, struct ieee80211_sta *sta)
3222 {
3223 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
3224 }
3225
iwl_mvm_sta_pm_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)3226 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
3227 {
3228 struct iwl_rx_packet *pkt = rxb_addr(rxb);
3229 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
3230 struct ieee80211_sta *sta;
3231 struct iwl_mvm_sta *mvmsta;
3232 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
3233
3234 if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations))
3235 return;
3236
3237 rcu_read_lock();
3238 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
3239 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
3240 rcu_read_unlock();
3241 return;
3242 }
3243
3244 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3245
3246 if (!mvmsta->vif ||
3247 mvmsta->vif->type != NL80211_IFTYPE_AP) {
3248 rcu_read_unlock();
3249 return;
3250 }
3251
3252 if (mvmsta->sleeping != sleeping) {
3253 mvmsta->sleeping = sleeping;
3254 __iwl_mvm_mac_sta_notify(mvm->hw,
3255 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
3256 sta);
3257 ieee80211_sta_ps_transition(sta, sleeping);
3258 }
3259
3260 if (sleeping) {
3261 switch (notif->type) {
3262 case IWL_MVM_PM_EVENT_AWAKE:
3263 case IWL_MVM_PM_EVENT_ASLEEP:
3264 break;
3265 case IWL_MVM_PM_EVENT_UAPSD:
3266 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
3267 break;
3268 case IWL_MVM_PM_EVENT_PS_POLL:
3269 ieee80211_sta_pspoll(sta);
3270 break;
3271 default:
3272 break;
3273 }
3274 }
3275
3276 rcu_read_unlock();
3277 }
3278
iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3279 void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
3280 struct ieee80211_vif *vif,
3281 struct ieee80211_sta *sta)
3282 {
3283 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3284 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3285 unsigned int link_id;
3286
3287 /*
3288 * This is called before mac80211 does RCU synchronisation,
3289 * so here we already invalidate our internal RCU-protected
3290 * station pointer. The rest of the code will thus no longer
3291 * be able to find the station this way, and we don't rely
3292 * on further RCU synchronisation after the sta_state()
3293 * callback deleted the station.
3294 * Since there's mvm->mutex here, no need to have RCU lock for
3295 * mvm_sta->link access.
3296 */
3297 mutex_lock(&mvm->mutex);
3298 for (link_id = 0; link_id < ARRAY_SIZE(mvm_sta->link); link_id++) {
3299 struct iwl_mvm_link_sta *link_sta;
3300 u32 sta_id;
3301
3302 if (!mvm_sta->link[link_id])
3303 continue;
3304
3305 link_sta = rcu_dereference_protected(mvm_sta->link[link_id],
3306 lockdep_is_held(&mvm->mutex));
3307 sta_id = link_sta->sta_id;
3308 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[sta_id])) {
3309 RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id],
3310 ERR_PTR(-ENOENT));
3311 RCU_INIT_POINTER(mvm->fw_id_to_link_sta[sta_id], NULL);
3312 }
3313 }
3314 mutex_unlock(&mvm->mutex);
3315 }
3316
iwl_mvm_check_uapsd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const u8 * bssid)3317 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
3318 const u8 *bssid)
3319 {
3320 int i;
3321
3322 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
3323 struct iwl_mvm_tcm_mac *mdata;
3324
3325 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id];
3326 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate);
3327 mdata->opened_rx_ba_sessions = false;
3328 }
3329
3330 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
3331 return;
3332
3333 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
3334 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3335 return;
3336 }
3337
3338 if (!vif->p2p &&
3339 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
3340 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3341 return;
3342 }
3343
3344 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) {
3345 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) {
3346 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
3347 return;
3348 }
3349 }
3350
3351 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
3352 }
3353
3354 static void
iwl_mvm_tdls_check_trigger(struct iwl_mvm * mvm,struct ieee80211_vif * vif,u8 * peer_addr,enum nl80211_tdls_operation action)3355 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
3356 struct ieee80211_vif *vif, u8 *peer_addr,
3357 enum nl80211_tdls_operation action)
3358 {
3359 struct iwl_fw_dbg_trigger_tlv *trig;
3360 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
3361
3362 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
3363 FW_DBG_TRIGGER_TDLS);
3364 if (!trig)
3365 return;
3366
3367 tdls_trig = (void *)trig->data;
3368
3369 if (!(tdls_trig->action_bitmap & BIT(action)))
3370 return;
3371
3372 if (tdls_trig->peer_mode &&
3373 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
3374 return;
3375
3376 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
3377 "TDLS event occurred, peer %pM, action %d",
3378 peer_addr, action);
3379 }
3380
3381 struct iwl_mvm_he_obss_narrow_bw_ru_data {
3382 bool tolerated;
3383 };
3384
iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy * wiphy,struct cfg80211_bss * bss,void * _data)3385 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy,
3386 struct cfg80211_bss *bss,
3387 void *_data)
3388 {
3389 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data;
3390 const struct cfg80211_bss_ies *ies;
3391 const struct element *elem;
3392
3393 rcu_read_lock();
3394 ies = rcu_dereference(bss->ies);
3395 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data,
3396 ies->len);
3397
3398 if (!elem || elem->datalen < 10 ||
3399 !(elem->data[10] &
3400 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) {
3401 data->tolerated = false;
3402 }
3403 rcu_read_unlock();
3404 }
3405
3406 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)3407 iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,
3408 struct ieee80211_vif *vif,
3409 unsigned int link_id,
3410 struct ieee80211_bss_conf *link_conf)
3411 {
3412 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3413 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = {
3414 .tolerated = true,
3415 };
3416
3417 if (WARN_ON_ONCE(!link_conf->chandef.chan ||
3418 !mvmvif->link[link_id]))
3419 return;
3420
3421 if (!(link_conf->chandef.chan->flags & IEEE80211_CHAN_RADAR)) {
3422 mvmvif->link[link_id]->he_ru_2mhz_block = false;
3423 return;
3424 }
3425
3426 cfg80211_bss_iter(hw->wiphy, &link_conf->chandef,
3427 iwl_mvm_check_he_obss_narrow_bw_ru_iter,
3428 &iter_data);
3429
3430 /*
3431 * If there is at least one AP on radar channel that cannot
3432 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU.
3433 */
3434 mvmvif->link[link_id]->he_ru_2mhz_block = !iter_data.tolerated;
3435 }
3436
iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm * mvm,struct ieee80211_vif * vif)3437 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm,
3438 struct ieee80211_vif *vif)
3439 {
3440 struct ieee80211_supported_band *sband;
3441 const struct ieee80211_sta_he_cap *he_cap;
3442
3443 if (vif->type != NL80211_IFTYPE_STATION)
3444 return;
3445
3446 if (!mvm->cca_40mhz_workaround)
3447 return;
3448
3449 /* decrement and check that we reached zero */
3450 mvm->cca_40mhz_workaround--;
3451 if (mvm->cca_40mhz_workaround)
3452 return;
3453
3454 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
3455
3456 sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
3457
3458 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
3459
3460 if (he_cap) {
3461 /* we know that ours is writable */
3462 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
3463
3464 he->he_cap_elem.phy_cap_info[0] |=
3465 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
3466 }
3467 }
3468
iwl_mvm_mei_host_associated(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_mvm_sta * mvm_sta)3469 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm,
3470 struct ieee80211_vif *vif,
3471 struct iwl_mvm_sta *mvm_sta)
3472 {
3473 #if IS_ENABLED(CONFIG_IWLMEI)
3474 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3475 struct iwl_mei_conn_info conn_info = {
3476 .ssid_len = vif->cfg.ssid_len,
3477 };
3478
3479 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3480 return;
3481
3482 if (!mvm->mei_registered)
3483 return;
3484
3485 /* FIXME: MEI needs to be updated for MLO */
3486 if (!vif->bss_conf.chandef.chan)
3487 return;
3488
3489 conn_info.channel = vif->bss_conf.chandef.chan->hw_value;
3490
3491 switch (mvm_sta->pairwise_cipher) {
3492 case WLAN_CIPHER_SUITE_TKIP:
3493 conn_info.pairwise_cipher = IWL_MEI_CIPHER_TKIP;
3494 break;
3495 case WLAN_CIPHER_SUITE_CCMP:
3496 conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP;
3497 break;
3498 case WLAN_CIPHER_SUITE_GCMP:
3499 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP;
3500 break;
3501 case WLAN_CIPHER_SUITE_GCMP_256:
3502 conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256;
3503 break;
3504 case 0:
3505 /* open profile */
3506 break;
3507 default:
3508 /* cipher not supported, don't send anything to iwlmei */
3509 return;
3510 }
3511
3512 switch (mvmvif->rekey_data.akm) {
3513 case WLAN_AKM_SUITE_SAE & 0xff:
3514 conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE;
3515 break;
3516 case WLAN_AKM_SUITE_PSK & 0xff:
3517 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK;
3518 break;
3519 case WLAN_AKM_SUITE_8021X & 0xff:
3520 conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA;
3521 break;
3522 case 0:
3523 /* open profile */
3524 conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN;
3525 break;
3526 default:
3527 /* auth method / AKM not supported */
3528 /* TODO: All the FT vesions of these? */
3529 return;
3530 }
3531
3532 memcpy(conn_info.ssid, vif->cfg.ssid, vif->cfg.ssid_len);
3533 memcpy(conn_info.bssid, vif->bss_conf.bssid, ETH_ALEN);
3534
3535 /* TODO: add support for collocated AP data */
3536 iwl_mei_host_associated(&conn_info, NULL);
3537 #endif
3538 }
3539
iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool force_assoc_off)3540 static int iwl_mvm_mac_ctxt_changed_wrapper(struct iwl_mvm *mvm,
3541 struct ieee80211_vif *vif,
3542 bool force_assoc_off)
3543 {
3544 return iwl_mvm_mac_ctxt_changed(mvm, vif, force_assoc_off, NULL);
3545 }
3546
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)3547 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
3548 struct ieee80211_vif *vif,
3549 struct ieee80211_sta *sta,
3550 enum ieee80211_sta_state old_state,
3551 enum ieee80211_sta_state new_state)
3552 {
3553 static const struct iwl_mvm_sta_state_ops callbacks = {
3554 .add_sta = iwl_mvm_add_sta,
3555 .update_sta = iwl_mvm_update_sta,
3556 .rm_sta = iwl_mvm_rm_sta,
3557 .mac_ctxt_changed = iwl_mvm_mac_ctxt_changed_wrapper,
3558 };
3559
3560 return iwl_mvm_mac_sta_state_common(hw, vif, sta, old_state, new_state,
3561 &callbacks);
3562 }
3563
3564 /* FIXME: temporary making two assumptions in all sta handling functions:
3565 * (1) when setting sta state, the link exists and protected
3566 * (2) if a link is valid in sta then it's valid in vif (can
3567 * use same index in the link array)
3568 */
iwl_mvm_rs_rate_init_all_links(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3569 static void iwl_mvm_rs_rate_init_all_links(struct iwl_mvm *mvm,
3570 struct ieee80211_vif *vif,
3571 struct ieee80211_sta *sta)
3572 {
3573 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3574 unsigned int link_id;
3575
3576 for_each_mvm_vif_valid_link(mvmvif, link_id) {
3577 struct ieee80211_bss_conf *conf =
3578 link_conf_dereference_check(vif, link_id);
3579 struct ieee80211_link_sta *link_sta =
3580 link_sta_dereference_check(sta, link_id);
3581
3582 if (!conf || !link_sta || !mvmvif->link[link_id]->phy_ctxt)
3583 continue;
3584
3585 iwl_mvm_rs_rate_init(mvm, vif, sta, conf, link_sta,
3586 mvmvif->link[link_id]->phy_ctxt->channel->band);
3587 }
3588 }
3589
3590 #define IWL_MVM_MIN_BEACON_INTERVAL_TU 16
3591
iwl_mvm_vif_conf_from_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)3592 static bool iwl_mvm_vif_conf_from_sta(struct iwl_mvm *mvm,
3593 struct ieee80211_vif *vif,
3594 struct ieee80211_sta *sta)
3595 {
3596 struct ieee80211_link_sta *link_sta;
3597 unsigned int link_id;
3598
3599 /* Beacon interval check - firmware will crash if the beacon
3600 * interval is less than 16. We can't avoid connecting at all,
3601 * so refuse the station state change, this will cause mac80211
3602 * to abandon attempts to connect to this AP, and eventually
3603 * wpa_s will blocklist the AP...
3604 */
3605
3606 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3607 struct ieee80211_bss_conf *link_conf =
3608 link_conf_dereference_protected(vif, link_id);
3609
3610 if (!link_conf)
3611 continue;
3612
3613 if (link_conf->beacon_int < IWL_MVM_MIN_BEACON_INTERVAL_TU) {
3614 IWL_ERR(mvm,
3615 "Beacon interval %d for AP %pM is too small\n",
3616 link_conf->beacon_int, link_sta->addr);
3617 return false;
3618 }
3619
3620 link_conf->he_support = link_sta->he_cap.has_he;
3621 }
3622
3623 return true;
3624 }
3625
iwl_mvm_vif_set_he_support(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,bool is_sta)3626 static void iwl_mvm_vif_set_he_support(struct ieee80211_hw *hw,
3627 struct ieee80211_vif *vif,
3628 struct ieee80211_sta *sta,
3629 bool is_sta)
3630 {
3631 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3632 struct ieee80211_link_sta *link_sta;
3633 unsigned int link_id;
3634
3635 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3636 struct ieee80211_bss_conf *link_conf =
3637 link_conf_dereference_protected(vif, link_id);
3638
3639 if (!link_conf || !mvmvif->link[link_id])
3640 continue;
3641
3642 link_conf->he_support = link_sta->he_cap.has_he;
3643
3644 if (is_sta) {
3645 mvmvif->link[link_id]->he_ru_2mhz_block = false;
3646 if (link_sta->he_cap.has_he)
3647 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif,
3648 link_id,
3649 link_conf);
3650 }
3651 }
3652 }
3653
3654 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)3655 iwl_mvm_sta_state_notexist_to_none(struct iwl_mvm *mvm,
3656 struct ieee80211_vif *vif,
3657 struct ieee80211_sta *sta,
3658 const struct iwl_mvm_sta_state_ops *callbacks)
3659 {
3660 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3661 struct ieee80211_link_sta *link_sta;
3662 unsigned int i;
3663 int ret;
3664
3665 lockdep_assert_held(&mvm->mutex);
3666
3667 if (vif->type == NL80211_IFTYPE_STATION &&
3668 !iwl_mvm_vif_conf_from_sta(mvm, vif, sta))
3669 return -EINVAL;
3670
3671 if (sta->tdls &&
3672 (vif->p2p ||
3673 iwl_mvm_tdls_sta_count(mvm, NULL) == IWL_MVM_TDLS_STA_COUNT ||
3674 iwl_mvm_phy_ctx_count(mvm) > 1)) {
3675 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
3676 return -EBUSY;
3677 }
3678
3679 ret = callbacks->add_sta(mvm, vif, sta);
3680 if (sta->tdls && ret == 0) {
3681 iwl_mvm_recalc_tdls_state(mvm, vif, true);
3682 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3683 NL80211_TDLS_SETUP);
3684 }
3685
3686 if (ret)
3687 return ret;
3688
3689 for_each_sta_active_link(vif, sta, link_sta, i)
3690 link_sta->agg.max_rc_amsdu_len = 1;
3691
3692 ieee80211_sta_recalc_aggregates(sta);
3693
3694 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
3695 mvmvif->ap_sta = sta;
3696
3697 /*
3698 * Initialize the rates here already - this really tells
3699 * the firmware only what the supported legacy rates are
3700 * (may be) since it's initialized already from what the
3701 * AP advertised in the beacon/probe response. This will
3702 * allow the firmware to send auth/assoc frames with one
3703 * of the supported rates already, rather than having to
3704 * use a mandatory rate.
3705 * If we're the AP, we'll just assume mandatory rates at
3706 * this point, but we know nothing about the STA anyway.
3707 */
3708 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3709
3710 return 0;
3711 }
3712
3713 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)3714 iwl_mvm_sta_state_auth_to_assoc(struct ieee80211_hw *hw,
3715 struct iwl_mvm *mvm,
3716 struct ieee80211_vif *vif,
3717 struct ieee80211_sta *sta,
3718 const struct iwl_mvm_sta_state_ops *callbacks)
3719 {
3720 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3721 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3722 struct ieee80211_link_sta *link_sta;
3723 unsigned int link_id;
3724
3725 lockdep_assert_held(&mvm->mutex);
3726
3727 if (vif->type == NL80211_IFTYPE_AP) {
3728 iwl_mvm_vif_set_he_support(hw, vif, sta, false);
3729 mvmvif->ap_assoc_sta_count++;
3730 callbacks->mac_ctxt_changed(mvm, vif, false);
3731
3732 /* since the below is not for MLD API, it's ok to use
3733 * the default bss_conf
3734 */
3735 if (!mvm->mld_api_is_used &&
3736 ((vif->bss_conf.he_support &&
3737 !iwlwifi_mod_params.disable_11ax) ||
3738 (vif->bss_conf.eht_support &&
3739 !iwlwifi_mod_params.disable_11be)))
3740 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->deflink.sta_id);
3741 } else if (vif->type == NL80211_IFTYPE_STATION) {
3742 iwl_mvm_vif_set_he_support(hw, vif, sta, true);
3743
3744 callbacks->mac_ctxt_changed(mvm, vif, false);
3745
3746 if (!mvm->mld_api_is_used)
3747 goto out;
3748
3749 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3750 struct ieee80211_bss_conf *link_conf =
3751 link_conf_dereference_protected(vif, link_id);
3752
3753 if (WARN_ON(!link_conf))
3754 return -EINVAL;
3755 if (!mvmvif->link[link_id])
3756 continue;
3757
3758 iwl_mvm_link_changed(mvm, vif, link_conf,
3759 LINK_CONTEXT_MODIFY_ALL &
3760 ~LINK_CONTEXT_MODIFY_ACTIVE,
3761 true);
3762 }
3763 }
3764
3765 out:
3766 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3767
3768 return callbacks->update_sta(mvm, vif, sta);
3769 }
3770
3771 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)3772 iwl_mvm_sta_state_assoc_to_authorized(struct iwl_mvm *mvm,
3773 struct ieee80211_vif *vif,
3774 struct ieee80211_sta *sta,
3775 const struct iwl_mvm_sta_state_ops *callbacks)
3776 {
3777 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3778 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3779
3780 lockdep_assert_held(&mvm->mutex);
3781
3782 /* we don't support TDLS during DCM */
3783 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3784 iwl_mvm_teardown_tdls_peers(mvm);
3785
3786 if (sta->tdls) {
3787 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3788 NL80211_TDLS_ENABLE_LINK);
3789 } else {
3790 /* enable beacon filtering */
3791 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
3792
3793 mvmvif->authorized = 1;
3794
3795 callbacks->mac_ctxt_changed(mvm, vif, false);
3796 iwl_mvm_mei_host_associated(mvm, vif, mvm_sta);
3797 }
3798
3799 mvm_sta->authorized = true;
3800
3801 /* MFP is set by default before the station is authorized.
3802 * Clear it here in case it's not used.
3803 */
3804 if (!sta->mfp) {
3805 int ret = callbacks->update_sta(mvm, vif, sta);
3806
3807 if (ret)
3808 return ret;
3809 }
3810
3811 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3812
3813 return 0;
3814 }
3815
3816 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)3817 iwl_mvm_sta_state_authorized_to_assoc(struct iwl_mvm *mvm,
3818 struct ieee80211_vif *vif,
3819 struct ieee80211_sta *sta,
3820 const struct iwl_mvm_sta_state_ops *callbacks)
3821 {
3822 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3823 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3824
3825 lockdep_assert_held(&mvm->mutex);
3826
3827 mvmsta->authorized = false;
3828
3829 /* once we move into assoc state, need to update rate scale to
3830 * disable using wide bandwidth
3831 */
3832 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
3833
3834 if (!sta->tdls) {
3835 /* Set this but don't call iwl_mvm_mac_ctxt_changed()
3836 * yet to avoid sending high prio again for a little
3837 * time.
3838 */
3839 mvmvif->authorized = 0;
3840
3841 /* disable beacon filtering */
3842 iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3843 }
3844
3845 return 0;
3846 }
3847
3848 /* 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)3849 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw,
3850 struct ieee80211_vif *vif,
3851 struct ieee80211_sta *sta,
3852 enum ieee80211_sta_state old_state,
3853 enum ieee80211_sta_state new_state,
3854 const struct iwl_mvm_sta_state_ops *callbacks)
3855 {
3856 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3857 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3858 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3859 struct ieee80211_link_sta *link_sta;
3860 unsigned int link_id;
3861 int ret;
3862
3863 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
3864 sta->addr, old_state, new_state);
3865
3866 /*
3867 * If we are in a STA removal flow and in DQA mode:
3868 *
3869 * This is after the sync_rcu part, so the queues have already been
3870 * flushed. No more TXs on their way in mac80211's path, and no more in
3871 * the queues.
3872 * Also, we won't be getting any new TX frames for this station.
3873 * What we might have are deferred TX frames that need to be taken care
3874 * of.
3875 *
3876 * Drop any still-queued deferred-frame before removing the STA, and
3877 * make sure the worker is no longer handling frames for this STA.
3878 */
3879 if (old_state == IEEE80211_STA_NONE &&
3880 new_state == IEEE80211_STA_NOTEXIST) {
3881 flush_work(&mvm->add_stream_wk);
3882
3883 /*
3884 * No need to make sure deferred TX indication is off since the
3885 * worker will already remove it if it was on
3886 */
3887
3888 /*
3889 * Additionally, reset the 40 MHz capability if we disconnected
3890 * from the AP now.
3891 */
3892 iwl_mvm_reset_cca_40mhz_workaround(mvm, vif);
3893
3894 /* Also free dup data just in case any assertions below fail */
3895 kfree(mvm_sta->dup_data);
3896 }
3897
3898 mutex_lock(&mvm->mutex);
3899
3900 /* this would be a mac80211 bug ... but don't crash */
3901 for_each_sta_active_link(vif, sta, link_sta, link_id) {
3902 if (WARN_ON_ONCE(!mvmvif->link[link_id]->phy_ctxt)) {
3903 mutex_unlock(&mvm->mutex);
3904 return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
3905 &mvm->status) ? 0 : -EINVAL;
3906 }
3907 }
3908
3909 /* track whether or not the station is associated */
3910 mvm_sta->sta_state = new_state;
3911
3912 if (old_state == IEEE80211_STA_NOTEXIST &&
3913 new_state == IEEE80211_STA_NONE) {
3914 ret = iwl_mvm_sta_state_notexist_to_none(mvm, vif, sta,
3915 callbacks);
3916 if (ret < 0)
3917 goto out_unlock;
3918 } else if (old_state == IEEE80211_STA_NONE &&
3919 new_state == IEEE80211_STA_AUTH) {
3920 /*
3921 * EBS may be disabled due to previous failures reported by FW.
3922 * Reset EBS status here assuming environment has been changed.
3923 */
3924 mvm->last_ebs_successful = true;
3925 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
3926 ret = 0;
3927 } else if (old_state == IEEE80211_STA_AUTH &&
3928 new_state == IEEE80211_STA_ASSOC) {
3929 ret = iwl_mvm_sta_state_auth_to_assoc(hw, mvm, vif, sta,
3930 callbacks);
3931 } else if (old_state == IEEE80211_STA_ASSOC &&
3932 new_state == IEEE80211_STA_AUTHORIZED) {
3933 ret = iwl_mvm_sta_state_assoc_to_authorized(mvm, vif, sta,
3934 callbacks);
3935 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
3936 new_state == IEEE80211_STA_ASSOC) {
3937 ret = iwl_mvm_sta_state_authorized_to_assoc(mvm, vif, sta,
3938 callbacks);
3939 } else if (old_state == IEEE80211_STA_ASSOC &&
3940 new_state == IEEE80211_STA_AUTH) {
3941 if (vif->type == NL80211_IFTYPE_AP) {
3942 mvmvif->ap_assoc_sta_count--;
3943 callbacks->mac_ctxt_changed(mvm, vif, false);
3944 } else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
3945 iwl_mvm_stop_session_protection(mvm, vif);
3946 ret = 0;
3947 } else if (old_state == IEEE80211_STA_AUTH &&
3948 new_state == IEEE80211_STA_NONE) {
3949 ret = 0;
3950 } else if (old_state == IEEE80211_STA_NONE &&
3951 new_state == IEEE80211_STA_NOTEXIST) {
3952 if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls) {
3953 iwl_mvm_stop_session_protection(mvm, vif);
3954 mvmvif->ap_sta = NULL;
3955 }
3956 ret = callbacks->rm_sta(mvm, vif, sta);
3957 if (sta->tdls) {
3958 iwl_mvm_recalc_tdls_state(mvm, vif, false);
3959 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3960 NL80211_TDLS_DISABLE_LINK);
3961 }
3962
3963 if (unlikely(ret &&
3964 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
3965 &mvm->status)))
3966 ret = 0;
3967 } else {
3968 ret = -EIO;
3969 }
3970 out_unlock:
3971 mutex_unlock(&mvm->mutex);
3972
3973 if (sta->tdls && ret == 0) {
3974 if (old_state == IEEE80211_STA_NOTEXIST &&
3975 new_state == IEEE80211_STA_NONE)
3976 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3977 else if (old_state == IEEE80211_STA_NONE &&
3978 new_state == IEEE80211_STA_NOTEXIST)
3979 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3980 }
3981
3982 return ret;
3983 }
3984
iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw * hw,u32 value)3985 int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3986 {
3987 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3988
3989 mvm->rts_threshold = value;
3990
3991 return 0;
3992 }
3993
iwl_mvm_sta_rc_update(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,u32 changed)3994 void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3995 struct ieee80211_sta *sta, u32 changed)
3996 {
3997 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3998
3999 if (changed & (IEEE80211_RC_BW_CHANGED |
4000 IEEE80211_RC_SUPP_RATES_CHANGED |
4001 IEEE80211_RC_NSS_CHANGED))
4002 iwl_mvm_rs_rate_init_all_links(mvm, vif, sta);
4003
4004 if (vif->type == NL80211_IFTYPE_STATION &&
4005 changed & IEEE80211_RC_NSS_CHANGED)
4006 iwl_mvm_sf_update(mvm, vif, false);
4007 }
4008
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)4009 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
4010 struct ieee80211_vif *vif,
4011 unsigned int link_id, u16 ac,
4012 const struct ieee80211_tx_queue_params *params)
4013 {
4014 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4015 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4016
4017 mvmvif->deflink.queue_params[ac] = *params;
4018
4019 /*
4020 * No need to update right away, we'll get BSS_CHANGED_QOS
4021 * The exception is P2P_DEVICE interface which needs immediate update.
4022 */
4023 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
4024 int ret;
4025
4026 mutex_lock(&mvm->mutex);
4027 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
4028 mutex_unlock(&mvm->mutex);
4029 return ret;
4030 }
4031 return 0;
4032 }
4033
iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)4034 void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
4035 struct ieee80211_vif *vif,
4036 struct ieee80211_prep_tx_info *info)
4037 {
4038 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4039
4040 mutex_lock(&mvm->mutex);
4041 iwl_mvm_protect_assoc(mvm, vif, info->duration);
4042 mutex_unlock(&mvm->mutex);
4043 }
4044
iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_prep_tx_info * info)4045 void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw,
4046 struct ieee80211_vif *vif,
4047 struct ieee80211_prep_tx_info *info)
4048 {
4049 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4050
4051 /* for successful cases (auth/assoc), don't cancel session protection */
4052 if (info->success)
4053 return;
4054
4055 mutex_lock(&mvm->mutex);
4056 iwl_mvm_stop_session_protection(mvm, vif);
4057 mutex_unlock(&mvm->mutex);
4058 }
4059
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)4060 int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
4061 struct ieee80211_vif *vif,
4062 struct cfg80211_sched_scan_request *req,
4063 struct ieee80211_scan_ies *ies)
4064 {
4065 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4066
4067 int ret;
4068
4069 mutex_lock(&mvm->mutex);
4070
4071 if (!vif->cfg.idle) {
4072 ret = -EBUSY;
4073 goto out;
4074 }
4075
4076 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
4077
4078 out:
4079 mutex_unlock(&mvm->mutex);
4080 return ret;
4081 }
4082
iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw * hw,struct ieee80211_vif * vif)4083 int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
4084 struct ieee80211_vif *vif)
4085 {
4086 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4087 int ret;
4088
4089 mutex_lock(&mvm->mutex);
4090
4091 /* Due to a race condition, it's possible that mac80211 asks
4092 * us to stop a sched_scan when it's already stopped. This
4093 * can happen, for instance, if we stopped the scan ourselves,
4094 * called ieee80211_sched_scan_stopped() and the userspace called
4095 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
4096 * could run. To handle this, simply return if the scan is
4097 * not running.
4098 */
4099 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
4100 mutex_unlock(&mvm->mutex);
4101 return 0;
4102 }
4103
4104 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
4105 mutex_unlock(&mvm->mutex);
4106 iwl_mvm_wait_for_async_handlers(mvm);
4107
4108 return ret;
4109 }
4110
__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)4111 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
4112 enum set_key_cmd cmd,
4113 struct ieee80211_vif *vif,
4114 struct ieee80211_sta *sta,
4115 struct ieee80211_key_conf *key)
4116 {
4117 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4118 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4119 struct iwl_mvm_sta *mvmsta = NULL;
4120 struct iwl_mvm_key_pn *ptk_pn = NULL;
4121 int keyidx = key->keyidx;
4122 u32 sec_key_id = WIDE_ID(DATA_PATH_GROUP, SEC_KEY_CMD);
4123 u8 sec_key_ver = iwl_fw_lookup_cmd_ver(mvm->fw, sec_key_id, 0);
4124 int ret, i;
4125 u8 key_offset;
4126
4127 if (sta)
4128 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4129
4130 switch (key->cipher) {
4131 case WLAN_CIPHER_SUITE_TKIP:
4132 if (!mvm->trans->trans_cfg->gen2) {
4133 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
4134 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
4135 } else if (vif->type == NL80211_IFTYPE_STATION) {
4136 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE;
4137 } else {
4138 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n");
4139 return -EOPNOTSUPP;
4140 }
4141 break;
4142 case WLAN_CIPHER_SUITE_CCMP:
4143 case WLAN_CIPHER_SUITE_GCMP:
4144 case WLAN_CIPHER_SUITE_GCMP_256:
4145 if (!iwl_mvm_has_new_tx_api(mvm))
4146 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
4147 break;
4148 case WLAN_CIPHER_SUITE_AES_CMAC:
4149 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
4150 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
4151 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
4152 break;
4153 case WLAN_CIPHER_SUITE_WEP40:
4154 case WLAN_CIPHER_SUITE_WEP104:
4155 if (vif->type == NL80211_IFTYPE_STATION)
4156 break;
4157 if (iwl_mvm_has_new_tx_api(mvm))
4158 return -EOPNOTSUPP;
4159 /* support HW crypto on TX */
4160 return 0;
4161 default:
4162 return -EOPNOTSUPP;
4163 }
4164
4165 switch (cmd) {
4166 case SET_KEY:
4167 if (vif->type == NL80211_IFTYPE_STATION &&
4168 (keyidx == 6 || keyidx == 7))
4169 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6],
4170 key);
4171
4172 if ((vif->type == NL80211_IFTYPE_ADHOC ||
4173 vif->type == NL80211_IFTYPE_AP) && !sta) {
4174 /*
4175 * GTK on AP interface is a TX-only key, return 0;
4176 * on IBSS they're per-station and because we're lazy
4177 * we don't support them for RX, so do the same.
4178 * CMAC/GMAC in AP/IBSS modes must be done in software.
4179 *
4180 * Except, of course, beacon protection - it must be
4181 * offloaded since we just set a beacon template.
4182 */
4183 if (keyidx < 6 &&
4184 (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
4185 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
4186 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)) {
4187 ret = -EOPNOTSUPP;
4188 break;
4189 }
4190
4191 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
4192 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
4193 !iwl_mvm_has_new_tx_api(mvm)) {
4194 key->hw_key_idx = STA_KEY_IDX_INVALID;
4195 ret = 0;
4196 break;
4197 }
4198
4199 if (!mvmvif->ap_ibss_active) {
4200 for (i = 0;
4201 i < ARRAY_SIZE(mvmvif->ap_early_keys);
4202 i++) {
4203 if (!mvmvif->ap_early_keys[i]) {
4204 mvmvif->ap_early_keys[i] = key;
4205 break;
4206 }
4207 }
4208
4209 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys))
4210 ret = -ENOSPC;
4211 else
4212 ret = 0;
4213
4214 break;
4215 }
4216 }
4217
4218 /* During FW restart, in order to restore the state as it was,
4219 * don't try to reprogram keys we previously failed for.
4220 */
4221 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
4222 key->hw_key_idx == STA_KEY_IDX_INVALID) {
4223 IWL_DEBUG_MAC80211(mvm,
4224 "skip invalid idx key programming during restart\n");
4225 ret = 0;
4226 break;
4227 }
4228
4229 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
4230 mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
4231 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
4232 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
4233 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
4234 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
4235 struct ieee80211_key_seq seq;
4236 int tid, q;
4237
4238 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
4239 ptk_pn = kzalloc(struct_size(ptk_pn, q,
4240 mvm->trans->num_rx_queues),
4241 GFP_KERNEL);
4242 if (!ptk_pn) {
4243 ret = -ENOMEM;
4244 break;
4245 }
4246
4247 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
4248 ieee80211_get_key_rx_seq(key, tid, &seq);
4249 for (q = 0; q < mvm->trans->num_rx_queues; q++)
4250 memcpy(ptk_pn->q[q].pn[tid],
4251 seq.ccmp.pn,
4252 IEEE80211_CCMP_PN_LEN);
4253 }
4254
4255 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
4256 }
4257
4258 /* in HW restart reuse the index, otherwise request a new one */
4259 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
4260 key_offset = key->hw_key_idx;
4261 else
4262 key_offset = STA_KEY_IDX_INVALID;
4263
4264 if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4265 mvmsta->pairwise_cipher = key->cipher;
4266
4267 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key (sta:%pM, id:%d)\n",
4268 sta ? sta->addr : NULL, key->keyidx);
4269
4270 if (sec_key_ver)
4271 ret = iwl_mvm_sec_key_add(mvm, vif, sta, key);
4272 else
4273 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
4274
4275 if (ret) {
4276 IWL_WARN(mvm, "set key failed\n");
4277 key->hw_key_idx = STA_KEY_IDX_INVALID;
4278 if (ptk_pn) {
4279 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
4280 kfree(ptk_pn);
4281 }
4282 /*
4283 * can't add key for RX, but we don't need it
4284 * in the device for TX so still return 0,
4285 * unless we have new TX API where we cannot
4286 * put key material into the TX_CMD
4287 */
4288 if (iwl_mvm_has_new_tx_api(mvm))
4289 ret = -EOPNOTSUPP;
4290 else
4291 ret = 0;
4292 }
4293
4294 break;
4295 case DISABLE_KEY:
4296 if (vif->type == NL80211_IFTYPE_STATION &&
4297 (keyidx == 6 || keyidx == 7))
4298 RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6],
4299 NULL);
4300
4301 ret = -ENOENT;
4302 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
4303 if (mvmvif->ap_early_keys[i] == key) {
4304 mvmvif->ap_early_keys[i] = NULL;
4305 ret = 0;
4306 }
4307 }
4308
4309 /* found in pending list - don't do anything else */
4310 if (ret == 0)
4311 break;
4312
4313 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
4314 ret = 0;
4315 break;
4316 }
4317
4318 if (mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
4319 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
4320 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
4321 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
4322 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
4323 ptk_pn = rcu_dereference_protected(
4324 mvmsta->ptk_pn[keyidx],
4325 lockdep_is_held(&mvm->mutex));
4326 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
4327 if (ptk_pn)
4328 kfree_rcu(ptk_pn, rcu_head);
4329 }
4330
4331 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
4332 if (sec_key_ver)
4333 ret = iwl_mvm_sec_key_del(mvm, vif, sta, key);
4334 else
4335 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
4336 break;
4337 default:
4338 ret = -EINVAL;
4339 }
4340
4341 return ret;
4342 }
4343
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)4344 int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
4345 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
4346 struct ieee80211_key_conf *key)
4347 {
4348 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4349 int ret;
4350
4351 mutex_lock(&mvm->mutex);
4352 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key);
4353 mutex_unlock(&mvm->mutex);
4354
4355 return ret;
4356 }
4357
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)4358 void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
4359 struct ieee80211_vif *vif,
4360 struct ieee80211_key_conf *keyconf,
4361 struct ieee80211_sta *sta,
4362 u32 iv32, u16 *phase1key)
4363 {
4364 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4365
4366 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
4367 return;
4368
4369 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
4370 }
4371
4372
iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data * notif_wait,struct iwl_rx_packet * pkt,void * data)4373 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
4374 struct iwl_rx_packet *pkt, void *data)
4375 {
4376 struct iwl_mvm *mvm =
4377 container_of(notif_wait, struct iwl_mvm, notif_wait);
4378 struct iwl_hs20_roc_res *resp;
4379 int resp_len = iwl_rx_packet_payload_len(pkt);
4380 struct iwl_mvm_time_event_data *te_data = data;
4381
4382 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
4383 return true;
4384
4385 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
4386 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
4387 return true;
4388 }
4389
4390 resp = (void *)pkt->data;
4391
4392 IWL_DEBUG_TE(mvm,
4393 "Aux ROC: Received response from ucode: status=%d uid=%d\n",
4394 resp->status, resp->event_unique_id);
4395
4396 te_data->uid = le32_to_cpu(resp->event_unique_id);
4397 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
4398 te_data->uid);
4399
4400 spin_lock_bh(&mvm->time_event_lock);
4401 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
4402 spin_unlock_bh(&mvm->time_event_lock);
4403
4404 return true;
4405 }
4406
4407 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
4408 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
4409 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
4410 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
4411 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
iwl_mvm_send_aux_roc_cmd(struct iwl_mvm * mvm,struct ieee80211_channel * channel,struct ieee80211_vif * vif,int duration)4412 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
4413 struct ieee80211_channel *channel,
4414 struct ieee80211_vif *vif,
4415 int duration)
4416 {
4417 int res;
4418 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4419 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
4420 static const u16 time_event_response[] = { HOT_SPOT_CMD };
4421 struct iwl_notification_wait wait_time_event;
4422 u32 dtim_interval = vif->bss_conf.dtim_period *
4423 vif->bss_conf.beacon_int;
4424 u32 req_dur, delay;
4425 struct iwl_hs20_roc_req aux_roc_req = {
4426 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
4427 .id_and_color =
4428 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
4429 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
4430 };
4431 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm,
4432 &aux_roc_req.channel_info);
4433 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm);
4434
4435 /* Set the channel info data */
4436 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value,
4437 iwl_mvm_phy_band_from_nl80211(channel->band),
4438 IWL_PHY_CHANNEL_MODE20,
4439 0);
4440
4441 /* Set the time and duration */
4442 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm));
4443
4444 delay = AUX_ROC_MIN_DELAY;
4445 req_dur = MSEC_TO_TU(duration);
4446
4447 /*
4448 * If we are associated we want the delay time to be at least one
4449 * dtim interval so that the FW can wait until after the DTIM and
4450 * then start the time event, this will potentially allow us to
4451 * remain off-channel for the max duration.
4452 * Since we want to use almost a whole dtim interval we would also
4453 * like the delay to be for 2-3 dtim intervals, in case there are
4454 * other time events with higher priority.
4455 */
4456 if (vif->cfg.assoc) {
4457 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
4458 /* We cannot remain off-channel longer than the DTIM interval */
4459 if (dtim_interval <= req_dur) {
4460 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
4461 if (req_dur <= AUX_ROC_MIN_DURATION)
4462 req_dur = dtim_interval -
4463 AUX_ROC_MIN_SAFETY_BUFFER;
4464 }
4465 }
4466
4467 tail->duration = cpu_to_le32(req_dur);
4468 tail->apply_time_max_delay = cpu_to_le32(delay);
4469
4470 IWL_DEBUG_TE(mvm,
4471 "ROC: Requesting to remain on channel %u for %ums\n",
4472 channel->hw_value, req_dur);
4473 IWL_DEBUG_TE(mvm,
4474 "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
4475 duration, delay, dtim_interval);
4476
4477 /* Set the node address */
4478 memcpy(tail->node_addr, vif->addr, ETH_ALEN);
4479
4480 lockdep_assert_held(&mvm->mutex);
4481
4482 spin_lock_bh(&mvm->time_event_lock);
4483
4484 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
4485 spin_unlock_bh(&mvm->time_event_lock);
4486 return -EIO;
4487 }
4488
4489 te_data->vif = vif;
4490 te_data->duration = duration;
4491 te_data->id = HOT_SPOT_CMD;
4492
4493 spin_unlock_bh(&mvm->time_event_lock);
4494
4495 /*
4496 * Use a notification wait, which really just processes the
4497 * command response and doesn't wait for anything, in order
4498 * to be able to process the response and get the UID inside
4499 * the RX path. Using CMD_WANT_SKB doesn't work because it
4500 * stores the buffer and then wakes up this thread, by which
4501 * time another notification (that the time event started)
4502 * might already be processed unsuccessfully.
4503 */
4504 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
4505 time_event_response,
4506 ARRAY_SIZE(time_event_response),
4507 iwl_mvm_rx_aux_roc, te_data);
4508
4509 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len,
4510 &aux_roc_req);
4511
4512 if (res) {
4513 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
4514 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
4515 goto out_clear_te;
4516 }
4517
4518 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
4519 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
4520 /* should never fail */
4521 WARN_ON_ONCE(res);
4522
4523 if (res) {
4524 out_clear_te:
4525 spin_lock_bh(&mvm->time_event_lock);
4526 iwl_mvm_te_clear_data(mvm, te_data);
4527 spin_unlock_bh(&mvm->time_event_lock);
4528 }
4529
4530 return res;
4531 }
4532
iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm * mvm,u32 lmac_id)4533 static int iwl_mvm_add_aux_sta_for_hs20(struct iwl_mvm *mvm, u32 lmac_id)
4534 {
4535 int ret = 0;
4536
4537 lockdep_assert_held(&mvm->mutex);
4538
4539 if (!fw_has_capa(&mvm->fw->ucode_capa,
4540 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
4541 IWL_ERR(mvm, "hotspot not supported\n");
4542 return -EINVAL;
4543 }
4544
4545 if (iwl_mvm_has_new_station_api(mvm->fw)) {
4546 ret = iwl_mvm_add_aux_sta(mvm, lmac_id);
4547 WARN(ret, "Failed to allocate aux station");
4548 }
4549
4550 return ret;
4551 }
4552
iwl_mvm_roc_link(struct iwl_mvm * mvm,struct ieee80211_vif * vif)4553 static int iwl_mvm_roc_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
4554 {
4555 int ret;
4556
4557 lockdep_assert_held(&mvm->mutex);
4558
4559 ret = iwl_mvm_binding_add_vif(mvm, vif);
4560 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
4561 return ret;
4562
4563 /* The station and queue allocation must be done only after the binding
4564 * is done, as otherwise the FW might incorrectly configure its state.
4565 */
4566 return iwl_mvm_add_p2p_bcast_sta(mvm, vif);
4567 }
4568
iwl_mvm_roc(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel * channel,int duration,enum ieee80211_roc_type type)4569 static int iwl_mvm_roc(struct ieee80211_hw *hw,
4570 struct ieee80211_vif *vif,
4571 struct ieee80211_channel *channel,
4572 int duration,
4573 enum ieee80211_roc_type type)
4574 {
4575 static const struct iwl_mvm_roc_ops ops = {
4576 .add_aux_sta_for_hs20 = iwl_mvm_add_aux_sta_for_hs20,
4577 .link = iwl_mvm_roc_link,
4578 };
4579
4580 return iwl_mvm_roc_common(hw, vif, channel, duration, type, &ops);
4581 }
4582
4583 /* 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)4584 int iwl_mvm_roc_common(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4585 struct ieee80211_channel *channel, int duration,
4586 enum ieee80211_roc_type type,
4587 const struct iwl_mvm_roc_ops *ops)
4588 {
4589 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4590 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4591 struct cfg80211_chan_def chandef;
4592 struct iwl_mvm_phy_ctxt *phy_ctxt;
4593 int ret, i;
4594 u32 lmac_id;
4595
4596 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
4597 duration, type);
4598
4599 /*
4600 * Flush the done work, just in case it's still pending, so that
4601 * the work it does can complete and we can accept new frames.
4602 */
4603 flush_work(&mvm->roc_done_wk);
4604
4605 mutex_lock(&mvm->mutex);
4606
4607 switch (vif->type) {
4608 case NL80211_IFTYPE_STATION:
4609 lmac_id = iwl_mvm_get_lmac_id(mvm, channel->band);
4610
4611 /* Use aux roc framework (HS20) */
4612 ret = ops->add_aux_sta_for_hs20(mvm, lmac_id);
4613 if (!ret)
4614 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
4615 vif, duration);
4616 goto out_unlock;
4617 case NL80211_IFTYPE_P2P_DEVICE:
4618 /* handle below */
4619 break;
4620 default:
4621 IWL_ERR(mvm, "ROC: Invalid vif type=%u\n", vif->type);
4622 ret = -EINVAL;
4623 goto out_unlock;
4624 }
4625
4626 /* Try using a PHY context that is already in use */
4627 for (i = 0; i < NUM_PHY_CTX; i++) {
4628 phy_ctxt = &mvm->phy_ctxts[i];
4629 if (!phy_ctxt->ref || mvmvif->deflink.phy_ctxt == phy_ctxt)
4630 continue;
4631
4632 if (channel == phy_ctxt->channel) {
4633 if (mvmvif->deflink.phy_ctxt)
4634 iwl_mvm_phy_ctxt_unref(mvm,
4635 mvmvif->deflink.phy_ctxt);
4636
4637 mvmvif->deflink.phy_ctxt = phy_ctxt;
4638 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt);
4639 goto link_and_start_p2p_roc;
4640 }
4641 }
4642
4643 /* If the currently used PHY context is configured with a matching
4644 * channel use it
4645 */
4646 if (mvmvif->deflink.phy_ctxt) {
4647 if (channel == mvmvif->deflink.phy_ctxt->channel)
4648 goto link_and_start_p2p_roc;
4649 } else {
4650 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
4651 if (!phy_ctxt) {
4652 ret = -ENOSPC;
4653 goto out_unlock;
4654 }
4655
4656 mvmvif->deflink.phy_ctxt = phy_ctxt;
4657 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->deflink.phy_ctxt);
4658 }
4659
4660 /* Configure the PHY context */
4661 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
4662
4663 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
4664 1, 1);
4665 if (ret) {
4666 IWL_ERR(mvm, "Failed to change PHY context\n");
4667 goto out_unlock;
4668 }
4669
4670 link_and_start_p2p_roc:
4671 ret = ops->link(mvm, vif);
4672 if (ret)
4673 goto out_unlock;
4674
4675 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
4676 out_unlock:
4677 mutex_unlock(&mvm->mutex);
4678 IWL_DEBUG_MAC80211(mvm, "leave\n");
4679 return ret;
4680 }
4681
iwl_mvm_cancel_roc(struct ieee80211_hw * hw,struct ieee80211_vif * vif)4682 int iwl_mvm_cancel_roc(struct ieee80211_hw *hw,
4683 struct ieee80211_vif *vif)
4684 {
4685 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4686
4687 IWL_DEBUG_MAC80211(mvm, "enter\n");
4688
4689 mutex_lock(&mvm->mutex);
4690 iwl_mvm_stop_roc(mvm, vif);
4691 mutex_unlock(&mvm->mutex);
4692
4693 IWL_DEBUG_MAC80211(mvm, "leave\n");
4694 return 0;
4695 }
4696
4697 struct iwl_mvm_ftm_responder_iter_data {
4698 bool responder;
4699 struct ieee80211_chanctx_conf *ctx;
4700 };
4701
iwl_mvm_ftm_responder_chanctx_iter(void * _data,u8 * mac,struct ieee80211_vif * vif)4702 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac,
4703 struct ieee80211_vif *vif)
4704 {
4705 struct iwl_mvm_ftm_responder_iter_data *data = _data;
4706
4707 if (rcu_access_pointer(vif->bss_conf.chanctx_conf) == data->ctx &&
4708 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params)
4709 data->responder = true;
4710 }
4711
iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm * mvm,struct ieee80211_chanctx_conf * ctx)4712 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm,
4713 struct ieee80211_chanctx_conf *ctx)
4714 {
4715 struct iwl_mvm_ftm_responder_iter_data data = {
4716 .responder = false,
4717 .ctx = ctx,
4718 };
4719
4720 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
4721 IEEE80211_IFACE_ITER_NORMAL,
4722 iwl_mvm_ftm_responder_chanctx_iter,
4723 &data);
4724 return data.responder;
4725 }
4726
__iwl_mvm_add_chanctx(struct iwl_mvm * mvm,struct ieee80211_chanctx_conf * ctx)4727 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
4728 struct ieee80211_chanctx_conf *ctx)
4729 {
4730 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4731 struct iwl_mvm_phy_ctxt *phy_ctxt;
4732 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx);
4733 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def;
4734 int ret;
4735
4736 lockdep_assert_held(&mvm->mutex);
4737
4738 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
4739
4740 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
4741 if (!phy_ctxt) {
4742 ret = -ENOSPC;
4743 goto out;
4744 }
4745
4746 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def,
4747 ctx->rx_chains_static,
4748 ctx->rx_chains_dynamic);
4749 if (ret) {
4750 IWL_ERR(mvm, "Failed to add PHY context\n");
4751 goto out;
4752 }
4753
4754 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
4755 *phy_ctxt_id = phy_ctxt->id;
4756 out:
4757 return ret;
4758 }
4759
iwl_mvm_add_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)4760 int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
4761 struct ieee80211_chanctx_conf *ctx)
4762 {
4763 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4764 int ret;
4765
4766 mutex_lock(&mvm->mutex);
4767 ret = __iwl_mvm_add_chanctx(mvm, ctx);
4768 mutex_unlock(&mvm->mutex);
4769
4770 return ret;
4771 }
4772
__iwl_mvm_remove_chanctx(struct iwl_mvm * mvm,struct ieee80211_chanctx_conf * ctx)4773 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
4774 struct ieee80211_chanctx_conf *ctx)
4775 {
4776 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4777 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4778
4779 lockdep_assert_held(&mvm->mutex);
4780
4781 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
4782 }
4783
iwl_mvm_remove_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx)4784 void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
4785 struct ieee80211_chanctx_conf *ctx)
4786 {
4787 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4788
4789 mutex_lock(&mvm->mutex);
4790 __iwl_mvm_remove_chanctx(mvm, ctx);
4791 mutex_unlock(&mvm->mutex);
4792 }
4793
iwl_mvm_change_chanctx(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * ctx,u32 changed)4794 void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
4795 struct ieee80211_chanctx_conf *ctx, u32 changed)
4796 {
4797 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4798 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4799 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4800 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx);
4801 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def;
4802
4803 if (WARN_ONCE((phy_ctxt->ref > 1) &&
4804 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
4805 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
4806 IEEE80211_CHANCTX_CHANGE_RADAR |
4807 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
4808 "Cannot change PHY. Ref=%d, changed=0x%X\n",
4809 phy_ctxt->ref, changed))
4810 return;
4811
4812 mutex_lock(&mvm->mutex);
4813
4814 /* we are only changing the min_width, may be a noop */
4815 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) {
4816 if (phy_ctxt->width == def->width)
4817 goto out_unlock;
4818
4819 /* we are just toggling between 20_NOHT and 20 */
4820 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&
4821 def->width <= NL80211_CHAN_WIDTH_20)
4822 goto out_unlock;
4823 }
4824
4825 iwl_mvm_bt_coex_vif_change(mvm);
4826 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def,
4827 ctx->rx_chains_static,
4828 ctx->rx_chains_dynamic);
4829
4830 out_unlock:
4831 mutex_unlock(&mvm->mutex);
4832 }
4833
4834 /*
4835 * This function executes the common part for MLD and non-MLD modes.
4836 *
4837 * Returns true if we're done assigning the chanctx
4838 * (either on failure or success)
4839 */
4840 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)4841 __iwl_mvm_assign_vif_chanctx_common(struct iwl_mvm *mvm,
4842 struct ieee80211_vif *vif,
4843 struct ieee80211_chanctx_conf *ctx,
4844 bool switching_chanctx, int *ret)
4845 {
4846 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4847 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4848 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4849
4850 lockdep_assert_held(&mvm->mutex);
4851
4852 mvmvif->deflink.phy_ctxt = phy_ctxt;
4853
4854 switch (vif->type) {
4855 case NL80211_IFTYPE_AP:
4856 /* only needed if we're switching chanctx (i.e. during CSA) */
4857 if (switching_chanctx) {
4858 mvmvif->ap_ibss_active = true;
4859 break;
4860 }
4861 fallthrough;
4862 case NL80211_IFTYPE_ADHOC:
4863 /*
4864 * The AP binding flow is handled as part of the start_ap flow
4865 * (in bss_info_changed), similarly for IBSS.
4866 */
4867 *ret = 0;
4868 return true;
4869 case NL80211_IFTYPE_STATION:
4870 break;
4871 case NL80211_IFTYPE_MONITOR:
4872 /* always disable PS when a monitor interface is active */
4873 mvmvif->ps_disabled = true;
4874 break;
4875 default:
4876 *ret = -EINVAL;
4877 return true;
4878 }
4879 return false;
4880 }
4881
__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)4882 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
4883 struct ieee80211_vif *vif,
4884 struct ieee80211_bss_conf *link_conf,
4885 struct ieee80211_chanctx_conf *ctx,
4886 bool switching_chanctx)
4887 {
4888 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4889 int ret;
4890
4891 if (WARN_ON(!link_conf))
4892 return -EINVAL;
4893
4894 if (__iwl_mvm_assign_vif_chanctx_common(mvm, vif, ctx,
4895 switching_chanctx, &ret))
4896 goto out;
4897
4898 ret = iwl_mvm_binding_add_vif(mvm, vif);
4899 if (ret)
4900 goto out;
4901
4902 /*
4903 * Power state must be updated before quotas,
4904 * otherwise fw will complain.
4905 */
4906 iwl_mvm_power_update_mac(mvm);
4907
4908 /* Setting the quota at this stage is only required for monitor
4909 * interfaces. For the other types, the bss_info changed flow
4910 * will handle quota settings.
4911 */
4912 if (vif->type == NL80211_IFTYPE_MONITOR) {
4913 mvmvif->monitor_active = true;
4914 ret = iwl_mvm_update_quotas(mvm, false, NULL);
4915 if (ret)
4916 goto out_remove_binding;
4917
4918 ret = iwl_mvm_add_snif_sta(mvm, vif);
4919 if (ret)
4920 goto out_remove_binding;
4921
4922 }
4923
4924 /* Handle binding during CSA */
4925 if (vif->type == NL80211_IFTYPE_AP) {
4926 iwl_mvm_update_quotas(mvm, false, NULL);
4927 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
4928 }
4929
4930 if (vif->type == NL80211_IFTYPE_STATION) {
4931 if (!switching_chanctx) {
4932 mvmvif->csa_bcn_pending = false;
4933 goto out;
4934 }
4935
4936 mvmvif->csa_bcn_pending = true;
4937
4938 if (!fw_has_capa(&mvm->fw->ucode_capa,
4939 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
4940 u32 duration = 3 * vif->bss_conf.beacon_int;
4941
4942 /* Protect the session to make sure we hear the first
4943 * beacon on the new channel.
4944 */
4945 iwl_mvm_protect_session(mvm, vif, duration, duration,
4946 vif->bss_conf.beacon_int / 2,
4947 true);
4948 }
4949
4950 iwl_mvm_update_quotas(mvm, false, NULL);
4951 }
4952
4953 goto out;
4954
4955 out_remove_binding:
4956 iwl_mvm_binding_remove_vif(mvm, vif);
4957 iwl_mvm_power_update_mac(mvm);
4958 out:
4959 if (ret)
4960 mvmvif->deflink.phy_ctxt = NULL;
4961 return ret;
4962 }
4963
iwl_mvm_assign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)4964 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
4965 struct ieee80211_vif *vif,
4966 struct ieee80211_bss_conf *link_conf,
4967 struct ieee80211_chanctx_conf *ctx)
4968 {
4969 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4970 int ret;
4971
4972 mutex_lock(&mvm->mutex);
4973 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, link_conf, ctx, false);
4974 mutex_unlock(&mvm->mutex);
4975
4976 return ret;
4977 }
4978
4979 /*
4980 * This function executes the common part for MLD and non-MLD modes.
4981 *
4982 * Returns if chanctx unassign chanctx is done
4983 * (either on failure or success)
4984 */
__iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool switching_chanctx)4985 static bool __iwl_mvm_unassign_vif_chanctx_common(struct iwl_mvm *mvm,
4986 struct ieee80211_vif *vif,
4987 bool switching_chanctx)
4988 {
4989 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4990
4991 lockdep_assert_held(&mvm->mutex);
4992 iwl_mvm_remove_time_event(mvm, mvmvif,
4993 &mvmvif->time_event_data);
4994
4995 switch (vif->type) {
4996 case NL80211_IFTYPE_ADHOC:
4997 return true;
4998 case NL80211_IFTYPE_MONITOR:
4999 mvmvif->monitor_active = false;
5000 mvmvif->ps_disabled = false;
5001 break;
5002 case NL80211_IFTYPE_AP:
5003 /* This part is triggered only during CSA */
5004 if (!switching_chanctx || !mvmvif->ap_ibss_active)
5005 return true;
5006
5007 mvmvif->csa_countdown = false;
5008
5009 /* Set CS bit on all the stations */
5010 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
5011
5012 /* Save blocked iface, the timeout is set on the next beacon */
5013 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
5014
5015 mvmvif->ap_ibss_active = false;
5016 break;
5017 default:
5018 break;
5019 }
5020 return false;
5021 }
5022
__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)5023 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
5024 struct ieee80211_vif *vif,
5025 struct ieee80211_bss_conf *link_conf,
5026 struct ieee80211_chanctx_conf *ctx,
5027 bool switching_chanctx)
5028 {
5029 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5030 struct ieee80211_vif *disabled_vif = NULL;
5031
5032 if (__iwl_mvm_unassign_vif_chanctx_common(mvm, vif, switching_chanctx))
5033 goto out;
5034
5035 if (vif->type == NL80211_IFTYPE_MONITOR)
5036 iwl_mvm_rm_snif_sta(mvm, vif);
5037
5038
5039 if (vif->type == NL80211_IFTYPE_STATION && switching_chanctx) {
5040 disabled_vif = vif;
5041 if (!fw_has_capa(&mvm->fw->ucode_capa,
5042 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
5043 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
5044 }
5045
5046 iwl_mvm_update_quotas(mvm, false, disabled_vif);
5047 iwl_mvm_binding_remove_vif(mvm, vif);
5048
5049 out:
5050 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) &&
5051 switching_chanctx)
5052 return;
5053 mvmvif->deflink.phy_ctxt = NULL;
5054 iwl_mvm_power_update_mac(mvm);
5055 }
5056
iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_bss_conf * link_conf,struct ieee80211_chanctx_conf * ctx)5057 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
5058 struct ieee80211_vif *vif,
5059 struct ieee80211_bss_conf *link_conf,
5060 struct ieee80211_chanctx_conf *ctx)
5061 {
5062 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5063
5064 mutex_lock(&mvm->mutex);
5065 __iwl_mvm_unassign_vif_chanctx(mvm, vif, link_conf, ctx, false);
5066 mutex_unlock(&mvm->mutex);
5067 }
5068
5069 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)5070 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
5071 struct ieee80211_vif_chanctx_switch *vifs,
5072 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5073 {
5074 int ret;
5075
5076 mutex_lock(&mvm->mutex);
5077 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5078 vifs[0].old_ctx, true);
5079 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
5080
5081 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
5082 if (ret) {
5083 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
5084 goto out_reassign;
5085 }
5086
5087 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5088 vifs[0].new_ctx, true);
5089 if (ret) {
5090 IWL_ERR(mvm,
5091 "failed to assign new_ctx during channel switch\n");
5092 goto out_remove;
5093 }
5094
5095 /* we don't support TDLS during DCM - can be caused by channel switch */
5096 if (iwl_mvm_phy_ctx_count(mvm) > 1)
5097 iwl_mvm_teardown_tdls_peers(mvm);
5098
5099 goto out;
5100
5101 out_remove:
5102 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
5103
5104 out_reassign:
5105 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
5106 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
5107 goto out_restart;
5108 }
5109
5110 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5111 vifs[0].old_ctx, true)) {
5112 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
5113 goto out_restart;
5114 }
5115
5116 goto out;
5117
5118 out_restart:
5119 /* things keep failing, better restart the hw */
5120 iwl_mvm_nic_restart(mvm, false);
5121
5122 out:
5123 mutex_unlock(&mvm->mutex);
5124
5125 return ret;
5126 }
5127
5128 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)5129 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
5130 struct ieee80211_vif_chanctx_switch *vifs,
5131 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5132 {
5133 int ret;
5134
5135 mutex_lock(&mvm->mutex);
5136 ops->__unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5137 vifs[0].old_ctx, true);
5138
5139 ret = ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5140 vifs[0].new_ctx, true);
5141 if (ret) {
5142 IWL_ERR(mvm,
5143 "failed to assign new_ctx during channel switch\n");
5144 goto out_reassign;
5145 }
5146
5147 goto out;
5148
5149 out_reassign:
5150 if (ops->__assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].link_conf,
5151 vifs[0].old_ctx, true)) {
5152 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
5153 goto out_restart;
5154 }
5155
5156 goto out;
5157
5158 out_restart:
5159 /* things keep failing, better restart the hw */
5160 iwl_mvm_nic_restart(mvm, false);
5161
5162 out:
5163 mutex_unlock(&mvm->mutex);
5164
5165 return ret;
5166 }
5167
5168 /* Execute the common part for both MLD and non-MLD modes */
5169 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)5170 iwl_mvm_switch_vif_chanctx_common(struct ieee80211_hw *hw,
5171 struct ieee80211_vif_chanctx_switch *vifs,
5172 int n_vifs,
5173 enum ieee80211_chanctx_switch_mode mode,
5174 const struct iwl_mvm_switch_vif_chanctx_ops *ops)
5175 {
5176 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5177 int ret;
5178
5179 /* we only support a single-vif right now */
5180 if (n_vifs > 1)
5181 return -EOPNOTSUPP;
5182
5183 switch (mode) {
5184 case CHANCTX_SWMODE_SWAP_CONTEXTS:
5185 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs, ops);
5186 break;
5187 case CHANCTX_SWMODE_REASSIGN_VIF:
5188 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs, ops);
5189 break;
5190 default:
5191 ret = -EOPNOTSUPP;
5192 break;
5193 }
5194
5195 return ret;
5196 }
5197
iwl_mvm_switch_vif_chanctx(struct ieee80211_hw * hw,struct ieee80211_vif_chanctx_switch * vifs,int n_vifs,enum ieee80211_chanctx_switch_mode mode)5198 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
5199 struct ieee80211_vif_chanctx_switch *vifs,
5200 int n_vifs,
5201 enum ieee80211_chanctx_switch_mode mode)
5202 {
5203 static const struct iwl_mvm_switch_vif_chanctx_ops ops = {
5204 .__assign_vif_chanctx = __iwl_mvm_assign_vif_chanctx,
5205 .__unassign_vif_chanctx = __iwl_mvm_unassign_vif_chanctx,
5206 };
5207
5208 return iwl_mvm_switch_vif_chanctx_common(hw, vifs, n_vifs, mode, &ops);
5209 }
5210
iwl_mvm_tx_last_beacon(struct ieee80211_hw * hw)5211 int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
5212 {
5213 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5214
5215 return mvm->ibss_manager;
5216 }
5217
iwl_mvm_set_tim(struct ieee80211_hw * hw,struct ieee80211_sta * sta,bool set)5218 int iwl_mvm_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
5219 bool set)
5220 {
5221 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5222 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
5223
5224 if (!mvm_sta || !mvm_sta->vif) {
5225 IWL_ERR(mvm, "Station is not associated to a vif\n");
5226 return -EINVAL;
5227 }
5228
5229 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif,
5230 &mvm_sta->vif->bss_conf);
5231 }
5232
5233 #ifdef CONFIG_NL80211_TESTMODE
5234 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
5235 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
5236 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
5237 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
5238 };
5239
__iwl_mvm_mac_testmode_cmd(struct iwl_mvm * mvm,struct ieee80211_vif * vif,void * data,int len)5240 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
5241 struct ieee80211_vif *vif,
5242 void *data, int len)
5243 {
5244 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
5245 int err;
5246 u32 noa_duration;
5247
5248 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len,
5249 iwl_mvm_tm_policy, NULL);
5250 if (err)
5251 return err;
5252
5253 if (!tb[IWL_MVM_TM_ATTR_CMD])
5254 return -EINVAL;
5255
5256 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
5257 case IWL_MVM_TM_CMD_SET_NOA:
5258 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
5259 !vif->bss_conf.enable_beacon ||
5260 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
5261 return -EINVAL;
5262
5263 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
5264 if (noa_duration >= vif->bss_conf.beacon_int)
5265 return -EINVAL;
5266
5267 mvm->noa_duration = noa_duration;
5268 mvm->noa_vif = vif;
5269
5270 return iwl_mvm_update_quotas(mvm, true, NULL);
5271 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
5272 /* must be associated client vif - ignore authorized */
5273 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
5274 !vif->cfg.assoc || !vif->bss_conf.dtim_period ||
5275 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
5276 return -EINVAL;
5277
5278 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
5279 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
5280 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
5281 }
5282
5283 return -EOPNOTSUPP;
5284 }
5285
iwl_mvm_mac_testmode_cmd(struct ieee80211_hw * hw,struct ieee80211_vif * vif,void * data,int len)5286 int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
5287 struct ieee80211_vif *vif,
5288 void *data, int len)
5289 {
5290 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5291 int err;
5292
5293 mutex_lock(&mvm->mutex);
5294 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
5295 mutex_unlock(&mvm->mutex);
5296
5297 return err;
5298 }
5299 #endif
5300
iwl_mvm_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5301 void iwl_mvm_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5302 struct ieee80211_channel_switch *chsw)
5303 {
5304 /* By implementing this operation, we prevent mac80211 from
5305 * starting its own channel switch timer, so that we can call
5306 * ieee80211_chswitch_done() ourselves at the right time
5307 * (which is when the absence time event starts).
5308 */
5309
5310 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
5311 "dummy channel switch op\n");
5312 }
5313
iwl_mvm_schedule_client_csa(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5314 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm,
5315 struct ieee80211_vif *vif,
5316 struct ieee80211_channel_switch *chsw)
5317 {
5318 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5319 struct iwl_chan_switch_te_cmd cmd = {
5320 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
5321 mvmvif->color)),
5322 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
5323 .tsf = cpu_to_le32(chsw->timestamp),
5324 .cs_count = chsw->count,
5325 .cs_mode = chsw->block_tx,
5326 };
5327
5328 lockdep_assert_held(&mvm->mutex);
5329
5330 if (chsw->delay)
5331 cmd.cs_delayed_bcn_count =
5332 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int);
5333
5334 return iwl_mvm_send_cmd_pdu(mvm,
5335 WIDE_ID(MAC_CONF_GROUP,
5336 CHANNEL_SWITCH_TIME_EVENT_CMD),
5337 0, sizeof(cmd), &cmd);
5338 }
5339
iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5340 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm,
5341 struct ieee80211_vif *vif,
5342 struct ieee80211_channel_switch *chsw)
5343 {
5344 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5345 u32 apply_time;
5346
5347 /* Schedule the time event to a bit before beacon 1,
5348 * to make sure we're in the new channel when the
5349 * GO/AP arrives. In case count <= 1 immediately schedule the
5350 * TE (this might result with some packet loss or connection
5351 * loss).
5352 */
5353 if (chsw->count <= 1)
5354 apply_time = 0;
5355 else
5356 apply_time = chsw->device_timestamp +
5357 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
5358 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
5359
5360 if (chsw->block_tx)
5361 iwl_mvm_csa_client_absent(mvm, vif);
5362
5363 if (mvmvif->bf_data.bf_enabled) {
5364 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
5365
5366 if (ret)
5367 return ret;
5368 }
5369
5370 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
5371 apply_time);
5372
5373 return 0;
5374 }
5375
5376 #define IWL_MAX_CSA_BLOCK_TX 1500
iwl_mvm_pre_channel_switch(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5377 int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
5378 struct ieee80211_vif *vif,
5379 struct ieee80211_channel_switch *chsw)
5380 {
5381 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5382 struct ieee80211_vif *csa_vif;
5383 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5384 int ret;
5385
5386 mutex_lock(&mvm->mutex);
5387
5388 mvmvif->csa_failed = false;
5389
5390 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
5391 chsw->chandef.center_freq1);
5392
5393 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
5394 ieee80211_vif_to_wdev(vif),
5395 FW_DBG_TRIGGER_CHANNEL_SWITCH);
5396
5397 switch (vif->type) {
5398 case NL80211_IFTYPE_AP:
5399 csa_vif =
5400 rcu_dereference_protected(mvm->csa_vif,
5401 lockdep_is_held(&mvm->mutex));
5402 if (WARN_ONCE(csa_vif && csa_vif->bss_conf.csa_active,
5403 "Another CSA is already in progress")) {
5404 ret = -EBUSY;
5405 goto out_unlock;
5406 }
5407
5408 /* we still didn't unblock tx. prevent new CS meanwhile */
5409 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
5410 lockdep_is_held(&mvm->mutex))) {
5411 ret = -EBUSY;
5412 goto out_unlock;
5413 }
5414
5415 rcu_assign_pointer(mvm->csa_vif, vif);
5416
5417 if (WARN_ONCE(mvmvif->csa_countdown,
5418 "Previous CSA countdown didn't complete")) {
5419 ret = -EBUSY;
5420 goto out_unlock;
5421 }
5422
5423 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
5424
5425 break;
5426 case NL80211_IFTYPE_STATION:
5427 /*
5428 * In the new flow FW is in charge of timing the switch so there
5429 * is no need for all of this
5430 */
5431 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
5432 CHANNEL_SWITCH_ERROR_NOTIF,
5433 0))
5434 break;
5435
5436 /*
5437 * We haven't configured the firmware to be associated yet since
5438 * we don't know the dtim period. In this case, the firmware can't
5439 * track the beacons.
5440 */
5441 if (!vif->cfg.assoc || !vif->bss_conf.dtim_period) {
5442 ret = -EBUSY;
5443 goto out_unlock;
5444 }
5445
5446 if (chsw->delay > IWL_MAX_CSA_BLOCK_TX)
5447 schedule_delayed_work(&mvmvif->csa_work, 0);
5448
5449 if (chsw->block_tx) {
5450 /*
5451 * In case of undetermined / long time with immediate
5452 * quiet monitor status to gracefully disconnect
5453 */
5454 if (!chsw->count ||
5455 chsw->count * vif->bss_conf.beacon_int >
5456 IWL_MAX_CSA_BLOCK_TX)
5457 schedule_delayed_work(&mvmvif->csa_work,
5458 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX));
5459 }
5460
5461 if (!fw_has_capa(&mvm->fw->ucode_capa,
5462 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
5463 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw);
5464 if (ret)
5465 goto out_unlock;
5466 } else {
5467 iwl_mvm_schedule_client_csa(mvm, vif, chsw);
5468 }
5469
5470 mvmvif->csa_count = chsw->count;
5471 mvmvif->csa_misbehave = false;
5472 break;
5473 default:
5474 break;
5475 }
5476
5477 mvmvif->ps_disabled = true;
5478
5479 ret = iwl_mvm_power_update_ps(mvm);
5480 if (ret)
5481 goto out_unlock;
5482
5483 /* we won't be on this channel any longer */
5484 iwl_mvm_teardown_tdls_peers(mvm);
5485
5486 out_unlock:
5487 mutex_unlock(&mvm->mutex);
5488
5489 return ret;
5490 }
5491
iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_channel_switch * chsw)5492 void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw,
5493 struct ieee80211_vif *vif,
5494 struct ieee80211_channel_switch *chsw)
5495 {
5496 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5497 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5498 struct iwl_chan_switch_te_cmd cmd = {
5499 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
5500 mvmvif->color)),
5501 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY),
5502 .tsf = cpu_to_le32(chsw->timestamp),
5503 .cs_count = chsw->count,
5504 .cs_mode = chsw->block_tx,
5505 };
5506
5507 /*
5508 * In the new flow FW is in charge of timing the switch so there is no
5509 * need for all of this
5510 */
5511 if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
5512 CHANNEL_SWITCH_ERROR_NOTIF, 0))
5513 return;
5514
5515 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY))
5516 return;
5517
5518 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n",
5519 mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx);
5520
5521 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) {
5522 if (mvmvif->csa_misbehave) {
5523 /* Second time, give up on this AP*/
5524 iwl_mvm_abort_channel_switch(hw, vif);
5525 ieee80211_chswitch_done(vif, false);
5526 mvmvif->csa_misbehave = false;
5527 return;
5528 }
5529 mvmvif->csa_misbehave = true;
5530 }
5531 mvmvif->csa_count = chsw->count;
5532
5533 mutex_lock(&mvm->mutex);
5534 if (mvmvif->csa_failed)
5535 goto out_unlock;
5536
5537 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
5538 WIDE_ID(MAC_CONF_GROUP,
5539 CHANNEL_SWITCH_TIME_EVENT_CMD),
5540 0, sizeof(cmd), &cmd));
5541 out_unlock:
5542 mutex_unlock(&mvm->mutex);
5543 }
5544
iwl_mvm_flush_no_vif(struct iwl_mvm * mvm,u32 queues,bool drop)5545 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
5546 {
5547 int i;
5548
5549 if (!iwl_mvm_has_new_tx_api(mvm)) {
5550 if (drop) {
5551 mutex_lock(&mvm->mutex);
5552 iwl_mvm_flush_tx_path(mvm,
5553 iwl_mvm_flushable_queues(mvm) & queues);
5554 mutex_unlock(&mvm->mutex);
5555 } else {
5556 iwl_trans_wait_tx_queues_empty(mvm->trans, queues);
5557 }
5558 return;
5559 }
5560
5561 mutex_lock(&mvm->mutex);
5562 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
5563 struct ieee80211_sta *sta;
5564
5565 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
5566 lockdep_is_held(&mvm->mutex));
5567 if (IS_ERR_OR_NULL(sta))
5568 continue;
5569
5570 if (drop)
5571 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF);
5572 else
5573 iwl_mvm_wait_sta_queues_empty(mvm,
5574 iwl_mvm_sta_from_mac80211(sta));
5575 }
5576 mutex_unlock(&mvm->mutex);
5577 }
5578
iwl_mvm_mac_flush(struct ieee80211_hw * hw,struct ieee80211_vif * vif,u32 queues,bool drop)5579 void iwl_mvm_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5580 u32 queues, bool drop)
5581 {
5582 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5583 struct iwl_mvm_vif *mvmvif;
5584 struct iwl_mvm_sta *mvmsta;
5585 struct ieee80211_sta *sta;
5586 bool ap_sta_done = false;
5587 int i;
5588 u32 msk = 0;
5589
5590 if (!vif) {
5591 iwl_mvm_flush_no_vif(mvm, queues, drop);
5592 return;
5593 }
5594
5595 /* Make sure we're done with the deferred traffic before flushing */
5596 flush_work(&mvm->add_stream_wk);
5597
5598 mutex_lock(&mvm->mutex);
5599 mvmvif = iwl_mvm_vif_from_mac80211(vif);
5600
5601 /* flush the AP-station and all TDLS peers */
5602 for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
5603 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
5604 lockdep_is_held(&mvm->mutex));
5605 if (IS_ERR_OR_NULL(sta))
5606 continue;
5607
5608 mvmsta = iwl_mvm_sta_from_mac80211(sta);
5609 if (mvmsta->vif != vif)
5610 continue;
5611
5612 if (sta == mvmvif->ap_sta) {
5613 if (ap_sta_done)
5614 continue;
5615 ap_sta_done = true;
5616 }
5617
5618 if (drop) {
5619 if (iwl_mvm_flush_sta(mvm, mvmsta->deflink.sta_id,
5620 mvmsta->tfd_queue_msk))
5621 IWL_ERR(mvm, "flush request fail\n");
5622 } else {
5623 if (iwl_mvm_has_new_tx_api(mvm))
5624 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
5625 else /* only used for !iwl_mvm_has_new_tx_api() below */
5626 msk |= mvmsta->tfd_queue_msk;
5627 }
5628 }
5629
5630 mutex_unlock(&mvm->mutex);
5631
5632 /* this can take a while, and we may need/want other operations
5633 * to succeed while doing this, so do it without the mutex held
5634 */
5635 if (!drop && !iwl_mvm_has_new_tx_api(mvm))
5636 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
5637 }
5638
iwl_mvm_mac_flush_sta(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta)5639 void iwl_mvm_mac_flush_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5640 struct ieee80211_sta *sta)
5641 {
5642 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
5643 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5644 struct iwl_mvm_link_sta *mvm_link_sta;
5645 struct ieee80211_link_sta *link_sta;
5646 int link_id;
5647
5648 mutex_lock(&mvm->mutex);
5649 for_each_sta_active_link(vif, sta, link_sta, link_id) {
5650 mvm_link_sta = rcu_dereference_protected(mvmsta->link[link_id],
5651 lockdep_is_held(&mvm->mutex));
5652 if (!mvm_link_sta)
5653 continue;
5654
5655 if (iwl_mvm_flush_sta(mvm, mvm_link_sta->sta_id,
5656 mvmsta->tfd_queue_msk))
5657 IWL_ERR(mvm, "flush request fail\n");
5658 }
5659 mutex_unlock(&mvm->mutex);
5660 }
5661
iwl_mvm_mac_get_survey(struct ieee80211_hw * hw,int idx,struct survey_info * survey)5662 int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
5663 struct survey_info *survey)
5664 {
5665 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5666 int ret;
5667
5668 memset(survey, 0, sizeof(*survey));
5669
5670 /* only support global statistics right now */
5671 if (idx != 0)
5672 return -ENOENT;
5673
5674 if (!fw_has_capa(&mvm->fw->ucode_capa,
5675 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
5676 return -ENOENT;
5677
5678 mutex_lock(&mvm->mutex);
5679
5680 if (iwl_mvm_firmware_running(mvm)) {
5681 ret = iwl_mvm_request_statistics(mvm, false);
5682 if (ret)
5683 goto out;
5684 }
5685
5686 survey->filled = SURVEY_INFO_TIME |
5687 SURVEY_INFO_TIME_RX |
5688 SURVEY_INFO_TIME_TX |
5689 SURVEY_INFO_TIME_SCAN;
5690 survey->time = mvm->accu_radio_stats.on_time_rf +
5691 mvm->radio_stats.on_time_rf;
5692 do_div(survey->time, USEC_PER_MSEC);
5693
5694 survey->time_rx = mvm->accu_radio_stats.rx_time +
5695 mvm->radio_stats.rx_time;
5696 do_div(survey->time_rx, USEC_PER_MSEC);
5697
5698 survey->time_tx = mvm->accu_radio_stats.tx_time +
5699 mvm->radio_stats.tx_time;
5700 do_div(survey->time_tx, USEC_PER_MSEC);
5701
5702 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
5703 mvm->radio_stats.on_time_scan;
5704 do_div(survey->time_scan, USEC_PER_MSEC);
5705
5706 ret = 0;
5707 out:
5708 mutex_unlock(&mvm->mutex);
5709 return ret;
5710 }
5711
iwl_mvm_set_sta_rate(u32 rate_n_flags,struct rate_info * rinfo)5712 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo)
5713 {
5714 u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
5715 u32 gi_ltf;
5716
5717 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
5718 case RATE_MCS_CHAN_WIDTH_20:
5719 rinfo->bw = RATE_INFO_BW_20;
5720 break;
5721 case RATE_MCS_CHAN_WIDTH_40:
5722 rinfo->bw = RATE_INFO_BW_40;
5723 break;
5724 case RATE_MCS_CHAN_WIDTH_80:
5725 rinfo->bw = RATE_INFO_BW_80;
5726 break;
5727 case RATE_MCS_CHAN_WIDTH_160:
5728 rinfo->bw = RATE_INFO_BW_160;
5729 break;
5730 case RATE_MCS_CHAN_WIDTH_320:
5731 rinfo->bw = RATE_INFO_BW_320;
5732 break;
5733 }
5734
5735 if (format == RATE_MCS_CCK_MSK ||
5736 format == RATE_MCS_LEGACY_OFDM_MSK) {
5737 int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK);
5738
5739 /* add the offset needed to get to the legacy ofdm indices */
5740 if (format == RATE_MCS_LEGACY_OFDM_MSK)
5741 rate += IWL_FIRST_OFDM_RATE;
5742
5743 switch (rate) {
5744 case IWL_RATE_1M_INDEX:
5745 rinfo->legacy = 10;
5746 break;
5747 case IWL_RATE_2M_INDEX:
5748 rinfo->legacy = 20;
5749 break;
5750 case IWL_RATE_5M_INDEX:
5751 rinfo->legacy = 55;
5752 break;
5753 case IWL_RATE_11M_INDEX:
5754 rinfo->legacy = 110;
5755 break;
5756 case IWL_RATE_6M_INDEX:
5757 rinfo->legacy = 60;
5758 break;
5759 case IWL_RATE_9M_INDEX:
5760 rinfo->legacy = 90;
5761 break;
5762 case IWL_RATE_12M_INDEX:
5763 rinfo->legacy = 120;
5764 break;
5765 case IWL_RATE_18M_INDEX:
5766 rinfo->legacy = 180;
5767 break;
5768 case IWL_RATE_24M_INDEX:
5769 rinfo->legacy = 240;
5770 break;
5771 case IWL_RATE_36M_INDEX:
5772 rinfo->legacy = 360;
5773 break;
5774 case IWL_RATE_48M_INDEX:
5775 rinfo->legacy = 480;
5776 break;
5777 case IWL_RATE_54M_INDEX:
5778 rinfo->legacy = 540;
5779 }
5780 return;
5781 }
5782
5783 rinfo->nss = u32_get_bits(rate_n_flags,
5784 RATE_MCS_NSS_MSK) + 1;
5785 rinfo->mcs = format == RATE_MCS_HT_MSK ?
5786 RATE_HT_MCS_INDEX(rate_n_flags) :
5787 u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK);
5788
5789 if (rate_n_flags & RATE_MCS_SGI_MSK)
5790 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
5791
5792 switch (format) {
5793 case RATE_MCS_EHT_MSK:
5794 /* TODO: GI/LTF/RU. How does the firmware encode them? */
5795 rinfo->flags |= RATE_INFO_FLAGS_EHT_MCS;
5796 break;
5797 case RATE_MCS_HE_MSK:
5798 gi_ltf = u32_get_bits(rate_n_flags, RATE_MCS_HE_GI_LTF_MSK);
5799
5800 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS;
5801
5802 if (rate_n_flags & RATE_MCS_HE_106T_MSK) {
5803 rinfo->bw = RATE_INFO_BW_HE_RU;
5804 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106;
5805 }
5806
5807 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) {
5808 case RATE_MCS_HE_TYPE_SU:
5809 case RATE_MCS_HE_TYPE_EXT_SU:
5810 if (gi_ltf == 0 || gi_ltf == 1)
5811 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
5812 else if (gi_ltf == 2)
5813 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
5814 else if (gi_ltf == 3)
5815 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
5816 else
5817 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
5818 break;
5819 case RATE_MCS_HE_TYPE_MU:
5820 if (gi_ltf == 0 || gi_ltf == 1)
5821 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
5822 else if (gi_ltf == 2)
5823 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
5824 else
5825 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
5826 break;
5827 case RATE_MCS_HE_TYPE_TRIG:
5828 if (gi_ltf == 0 || gi_ltf == 1)
5829 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
5830 else
5831 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
5832 break;
5833 }
5834
5835 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK)
5836 rinfo->he_dcm = 1;
5837 break;
5838 case RATE_MCS_HT_MSK:
5839 rinfo->flags |= RATE_INFO_FLAGS_MCS;
5840 break;
5841 case RATE_MCS_VHT_MSK:
5842 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
5843 break;
5844 }
5845 }
5846
iwl_mvm_mac_sta_statistics(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct station_info * sinfo)5847 void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
5848 struct ieee80211_vif *vif,
5849 struct ieee80211_sta *sta,
5850 struct station_info *sinfo)
5851 {
5852 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5853 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5854 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
5855
5856 if (mvmsta->deflink.avg_energy) {
5857 sinfo->signal_avg = -(s8)mvmsta->deflink.avg_energy;
5858 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
5859 }
5860
5861 if (iwl_mvm_has_tlc_offload(mvm)) {
5862 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->deflink.lq_sta.rs_fw;
5863
5864 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate);
5865 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
5866 }
5867
5868 /* if beacon filtering isn't on mac80211 does it anyway */
5869 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
5870 return;
5871
5872 if (!vif->cfg.assoc)
5873 return;
5874
5875 mutex_lock(&mvm->mutex);
5876
5877 if (mvmvif->deflink.ap_sta_id != mvmsta->deflink.sta_id)
5878 goto unlock;
5879
5880 if (iwl_mvm_request_statistics(mvm, false))
5881 goto unlock;
5882
5883 sinfo->rx_beacon = mvmvif->deflink.beacon_stats.num_beacons +
5884 mvmvif->deflink.beacon_stats.accu_num_beacons;
5885 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX);
5886 if (mvmvif->deflink.beacon_stats.avg_signal) {
5887 /* firmware only reports a value after RXing a few beacons */
5888 sinfo->rx_beacon_signal_avg =
5889 mvmvif->deflink.beacon_stats.avg_signal;
5890 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
5891 }
5892 unlock:
5893 mutex_unlock(&mvm->mutex);
5894 }
5895
iwl_mvm_event_mlme_callback_ini(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const struct ieee80211_mlme_event * mlme)5896 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm,
5897 struct ieee80211_vif *vif,
5898 const struct ieee80211_mlme_event *mlme)
5899 {
5900 if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) &&
5901 (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) {
5902 iwl_dbg_tlv_time_point(&mvm->fwrt,
5903 IWL_FW_INI_TIME_POINT_ASSOC_FAILED,
5904 NULL);
5905 return;
5906 }
5907
5908 if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) {
5909 iwl_dbg_tlv_time_point(&mvm->fwrt,
5910 IWL_FW_INI_TIME_POINT_DEASSOC,
5911 NULL);
5912 return;
5913 }
5914 }
5915
iwl_mvm_event_mlme_callback(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const struct ieee80211_event * event)5916 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
5917 struct ieee80211_vif *vif,
5918 const struct ieee80211_event *event)
5919 {
5920 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
5921 do { \
5922 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
5923 break; \
5924 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
5925 } while (0)
5926
5927 struct iwl_fw_dbg_trigger_tlv *trig;
5928 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
5929
5930 if (iwl_trans_dbg_ini_valid(mvm->trans)) {
5931 iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme);
5932 return;
5933 }
5934
5935 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
5936 FW_DBG_TRIGGER_MLME);
5937 if (!trig)
5938 return;
5939
5940 trig_mlme = (void *)trig->data;
5941
5942 if (event->u.mlme.data == ASSOC_EVENT) {
5943 if (event->u.mlme.status == MLME_DENIED)
5944 CHECK_MLME_TRIGGER(stop_assoc_denied,
5945 "DENIED ASSOC: reason %d",
5946 event->u.mlme.reason);
5947 else if (event->u.mlme.status == MLME_TIMEOUT)
5948 CHECK_MLME_TRIGGER(stop_assoc_timeout,
5949 "ASSOC TIMEOUT");
5950 } else if (event->u.mlme.data == AUTH_EVENT) {
5951 if (event->u.mlme.status == MLME_DENIED)
5952 CHECK_MLME_TRIGGER(stop_auth_denied,
5953 "DENIED AUTH: reason %d",
5954 event->u.mlme.reason);
5955 else if (event->u.mlme.status == MLME_TIMEOUT)
5956 CHECK_MLME_TRIGGER(stop_auth_timeout,
5957 "AUTH TIMEOUT");
5958 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
5959 CHECK_MLME_TRIGGER(stop_rx_deauth,
5960 "DEAUTH RX %d", event->u.mlme.reason);
5961 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
5962 CHECK_MLME_TRIGGER(stop_tx_deauth,
5963 "DEAUTH TX %d", event->u.mlme.reason);
5964 }
5965 #undef CHECK_MLME_TRIGGER
5966 }
5967
iwl_mvm_event_bar_rx_callback(struct iwl_mvm * mvm,struct ieee80211_vif * vif,const struct ieee80211_event * event)5968 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
5969 struct ieee80211_vif *vif,
5970 const struct ieee80211_event *event)
5971 {
5972 struct iwl_fw_dbg_trigger_tlv *trig;
5973 struct iwl_fw_dbg_trigger_ba *ba_trig;
5974
5975 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
5976 FW_DBG_TRIGGER_BA);
5977 if (!trig)
5978 return;
5979
5980 ba_trig = (void *)trig->data;
5981
5982 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
5983 return;
5984
5985 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
5986 "BAR received from %pM, tid %d, ssn %d",
5987 event->u.ba.sta->addr, event->u.ba.tid,
5988 event->u.ba.ssn);
5989 }
5990
iwl_mvm_mac_event_callback(struct ieee80211_hw * hw,struct ieee80211_vif * vif,const struct ieee80211_event * event)5991 void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
5992 struct ieee80211_vif *vif,
5993 const struct ieee80211_event *event)
5994 {
5995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5996
5997 switch (event->type) {
5998 case MLME_EVENT:
5999 iwl_mvm_event_mlme_callback(mvm, vif, event);
6000 break;
6001 case BAR_RX_EVENT:
6002 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
6003 break;
6004 case BA_FRAME_TIMEOUT:
6005 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,
6006 event->u.ba.tid);
6007 break;
6008 default:
6009 break;
6010 }
6011 }
6012
iwl_mvm_sync_rx_queues_internal(struct iwl_mvm * mvm,enum iwl_mvm_rxq_notif_type type,bool sync,const void * data,u32 size)6013 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
6014 enum iwl_mvm_rxq_notif_type type,
6015 bool sync,
6016 const void *data, u32 size)
6017 {
6018 struct {
6019 struct iwl_rxq_sync_cmd cmd;
6020 struct iwl_mvm_internal_rxq_notif notif;
6021 } __packed cmd = {
6022 .cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1),
6023 .cmd.count =
6024 cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) +
6025 size),
6026 .notif.type = type,
6027 .notif.sync = sync,
6028 };
6029 struct iwl_host_cmd hcmd = {
6030 .id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD),
6031 .data[0] = &cmd,
6032 .len[0] = sizeof(cmd),
6033 .data[1] = data,
6034 .len[1] = size,
6035 .flags = sync ? 0 : CMD_ASYNC,
6036 };
6037 int ret;
6038
6039 /* size must be a multiple of DWORD */
6040 if (WARN_ON(cmd.cmd.count & cpu_to_le32(3)))
6041 return;
6042
6043 if (!iwl_mvm_has_new_rx_api(mvm))
6044 return;
6045
6046 if (sync) {
6047 cmd.notif.cookie = mvm->queue_sync_cookie;
6048 mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1;
6049 }
6050
6051 ret = iwl_mvm_send_cmd(mvm, &hcmd);
6052 if (ret) {
6053 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
6054 goto out;
6055 }
6056
6057 if (sync) {
6058 lockdep_assert_held(&mvm->mutex);
6059 ret = wait_event_timeout(mvm->rx_sync_waitq,
6060 READ_ONCE(mvm->queue_sync_state) == 0 ||
6061 iwl_mvm_is_radio_killed(mvm),
6062 HZ);
6063 WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm),
6064 "queue sync: failed to sync, state is 0x%lx\n",
6065 mvm->queue_sync_state);
6066 }
6067
6068 out:
6069 if (sync) {
6070 mvm->queue_sync_state = 0;
6071 mvm->queue_sync_cookie++;
6072 }
6073 }
6074
iwl_mvm_sync_rx_queues(struct ieee80211_hw * hw)6075 void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
6076 {
6077 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6078
6079 mutex_lock(&mvm->mutex);
6080 iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0);
6081 mutex_unlock(&mvm->mutex);
6082 }
6083
6084 int
iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_ftm_responder_stats * stats)6085 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw,
6086 struct ieee80211_vif *vif,
6087 struct cfg80211_ftm_responder_stats *stats)
6088 {
6089 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6090 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6091
6092 if (vif->p2p || vif->type != NL80211_IFTYPE_AP ||
6093 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder)
6094 return -EINVAL;
6095
6096 mutex_lock(&mvm->mutex);
6097 *stats = mvm->ftm_resp_stats;
6098 mutex_unlock(&mvm->mutex);
6099
6100 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) |
6101 BIT(NL80211_FTM_STATS_PARTIAL_NUM) |
6102 BIT(NL80211_FTM_STATS_FAILED_NUM) |
6103 BIT(NL80211_FTM_STATS_ASAP_NUM) |
6104 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) |
6105 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) |
6106 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) |
6107 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) |
6108 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM);
6109
6110 return 0;
6111 }
6112
iwl_mvm_start_pmsr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_pmsr_request * request)6113 int iwl_mvm_start_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6114 struct cfg80211_pmsr_request *request)
6115 {
6116 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6117 int ret;
6118
6119 mutex_lock(&mvm->mutex);
6120 ret = iwl_mvm_ftm_start(mvm, vif, request);
6121 mutex_unlock(&mvm->mutex);
6122
6123 return ret;
6124 }
6125
iwl_mvm_abort_pmsr(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_pmsr_request * request)6126 void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
6127 struct cfg80211_pmsr_request *request)
6128 {
6129 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6130
6131 mutex_lock(&mvm->mutex);
6132 iwl_mvm_ftm_abort(mvm, request);
6133 mutex_unlock(&mvm->mutex);
6134 }
6135
iwl_mvm_can_hw_csum(struct sk_buff * skb)6136 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb)
6137 {
6138 u8 protocol = ip_hdr(skb)->protocol;
6139
6140 if (!IS_ENABLED(CONFIG_INET))
6141 return false;
6142
6143 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP;
6144 }
6145
iwl_mvm_mac_can_aggregate(struct ieee80211_hw * hw,struct sk_buff * head,struct sk_buff * skb)6146 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw,
6147 struct sk_buff *head,
6148 struct sk_buff *skb)
6149 {
6150 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6151
6152 /* For now don't aggregate IPv6 in AMSDU */
6153 if (skb->protocol != htons(ETH_P_IP))
6154 return false;
6155
6156 if (!iwl_mvm_is_csum_supported(mvm))
6157 return true;
6158
6159 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head);
6160 }
6161
iwl_mvm_set_hw_timestamp(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct cfg80211_set_hw_timestamp * hwts)6162 int iwl_mvm_set_hw_timestamp(struct ieee80211_hw *hw,
6163 struct ieee80211_vif *vif,
6164 struct cfg80211_set_hw_timestamp *hwts)
6165 {
6166 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6167 u32 protocols = 0;
6168 int ret;
6169
6170 /* HW timestamping is only supported for a specific station */
6171 if (!hwts->macaddr)
6172 return -EOPNOTSUPP;
6173
6174 if (hwts->enable)
6175 protocols =
6176 IWL_TIME_SYNC_PROTOCOL_TM | IWL_TIME_SYNC_PROTOCOL_FTM;
6177
6178 mutex_lock(&mvm->mutex);
6179 ret = iwl_mvm_time_sync_config(mvm, hwts->macaddr, protocols);
6180 mutex_unlock(&mvm->mutex);
6181
6182 return ret;
6183 }
6184
6185 const struct ieee80211_ops iwl_mvm_hw_ops = {
6186 .tx = iwl_mvm_mac_tx,
6187 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue,
6188 .ampdu_action = iwl_mvm_mac_ampdu_action,
6189 .get_antenna = iwl_mvm_op_get_antenna,
6190 .start = iwl_mvm_mac_start,
6191 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
6192 .stop = iwl_mvm_mac_stop,
6193 .add_interface = iwl_mvm_mac_add_interface,
6194 .remove_interface = iwl_mvm_mac_remove_interface,
6195 .config = iwl_mvm_mac_config,
6196 .prepare_multicast = iwl_mvm_prepare_multicast,
6197 .configure_filter = iwl_mvm_configure_filter,
6198 .config_iface_filter = iwl_mvm_config_iface_filter,
6199 .bss_info_changed = iwl_mvm_bss_info_changed,
6200 .hw_scan = iwl_mvm_mac_hw_scan,
6201 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
6202 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
6203 .sta_state = iwl_mvm_mac_sta_state,
6204 .sta_notify = iwl_mvm_mac_sta_notify,
6205 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
6206 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
6207 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
6208 .sta_rc_update = iwl_mvm_sta_rc_update,
6209 .conf_tx = iwl_mvm_mac_conf_tx,
6210 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
6211 .mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx,
6212 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
6213 .flush = iwl_mvm_mac_flush,
6214 .flush_sta = iwl_mvm_mac_flush_sta,
6215 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
6216 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
6217 .set_key = iwl_mvm_mac_set_key,
6218 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
6219 .remain_on_channel = iwl_mvm_roc,
6220 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
6221 .add_chanctx = iwl_mvm_add_chanctx,
6222 .remove_chanctx = iwl_mvm_remove_chanctx,
6223 .change_chanctx = iwl_mvm_change_chanctx,
6224 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
6225 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
6226 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
6227
6228 .start_ap = iwl_mvm_start_ap,
6229 .stop_ap = iwl_mvm_stop_ap,
6230 .join_ibss = iwl_mvm_start_ibss,
6231 .leave_ibss = iwl_mvm_stop_ibss,
6232
6233 .tx_last_beacon = iwl_mvm_tx_last_beacon,
6234
6235 .set_tim = iwl_mvm_set_tim,
6236
6237 .channel_switch = iwl_mvm_channel_switch,
6238 .pre_channel_switch = iwl_mvm_pre_channel_switch,
6239 .post_channel_switch = iwl_mvm_post_channel_switch,
6240 .abort_channel_switch = iwl_mvm_abort_channel_switch,
6241 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon,
6242
6243 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
6244 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
6245 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
6246
6247 .event_callback = iwl_mvm_mac_event_callback,
6248
6249 .sync_rx_queues = iwl_mvm_sync_rx_queues,
6250
6251 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
6252
6253 #ifdef CONFIG_PM_SLEEP
6254 /* look at d3.c */
6255 .suspend = iwl_mvm_suspend,
6256 .resume = iwl_mvm_resume,
6257 .set_wakeup = iwl_mvm_set_wakeup,
6258 .set_rekey_data = iwl_mvm_set_rekey_data,
6259 #if IS_ENABLED(CONFIG_IPV6)
6260 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
6261 #endif
6262 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
6263 #endif
6264 .get_survey = iwl_mvm_mac_get_survey,
6265 .sta_statistics = iwl_mvm_mac_sta_statistics,
6266 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats,
6267 .start_pmsr = iwl_mvm_start_pmsr,
6268 .abort_pmsr = iwl_mvm_abort_pmsr,
6269
6270 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate,
6271 #ifdef CONFIG_IWLWIFI_DEBUGFS
6272 .link_sta_add_debugfs = iwl_mvm_link_sta_add_debugfs,
6273 #endif
6274 .set_hw_timestamp = iwl_mvm_set_hw_timestamp,
6275 };
6276