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Merge tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
[drm/drm-misc.git] / drivers / net / wireless / intel / iwlwifi / mvm / scan.c
blob376b9b12fa6239d37fe43440d0998f46b6589216
1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2012-2014, 2018-2024 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
7 #include <linux/etherdevice.h>
8 #include <net/mac80211.h>
9 #include <linux/crc32.h>
10
11 #include "mvm.h"
12 #include "fw/api/scan.h"
13 #include "iwl-io.h"
14
15 #define IWL_DENSE_EBS_SCAN_RATIO 5
16 #define IWL_SPARSE_EBS_SCAN_RATIO 1
17
18 #define IWL_SCAN_DWELL_ACTIVE 10
19 #define IWL_SCAN_DWELL_PASSIVE 110
20 #define IWL_SCAN_DWELL_FRAGMENTED 44
21 #define IWL_SCAN_DWELL_EXTENDED 90
22 #define IWL_SCAN_NUM_OF_FRAGS 3
23
24 /* adaptive dwell max budget time [TU] for full scan */
25 #define IWL_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN 300
26 /* adaptive dwell max budget time [TU] for directed scan */
27 #define IWL_SCAN_ADWELL_MAX_BUDGET_DIRECTED_SCAN 100
28 /* adaptive dwell default high band APs number */
29 #define IWL_SCAN_ADWELL_DEFAULT_HB_N_APS 8
30 /* adaptive dwell default low band APs number */
31 #define IWL_SCAN_ADWELL_DEFAULT_LB_N_APS 2
32 /* adaptive dwell default APs number in social channels (1, 6, 11) */
33 #define IWL_SCAN_ADWELL_DEFAULT_N_APS_SOCIAL 10
34 /* number of scan channels */
35 #define IWL_SCAN_NUM_CHANNELS 112
36 /* adaptive dwell number of APs override mask for p2p friendly GO */
37 #define IWL_SCAN_ADWELL_N_APS_GO_FRIENDLY_BIT BIT(20)
38 /* adaptive dwell number of APs override mask for social channels */
39 #define IWL_SCAN_ADWELL_N_APS_SOCIAL_CHS_BIT BIT(21)
40 /* adaptive dwell number of APs override for p2p friendly GO channels */
41 #define IWL_SCAN_ADWELL_N_APS_GO_FRIENDLY 10
42 /* adaptive dwell number of APs override for social channels */
43 #define IWL_SCAN_ADWELL_N_APS_SOCIAL_CHS 2
44
45 /* minimal number of 2GHz and 5GHz channels in the regular scan request */
46 #define IWL_MVM_6GHZ_PASSIVE_SCAN_MIN_CHANS 4
47
48 /* Number of iterations on the channel for mei filtered scan */
49 #define IWL_MEI_SCAN_NUM_ITER 5U
50
51 #define WFA_TPC_IE_LEN 9
52
53 struct iwl_mvm_scan_timing_params {
54 u32 suspend_time;
55 u32 max_out_time;
56 };
57
58 static struct iwl_mvm_scan_timing_params scan_timing[] = {
59 [IWL_SCAN_TYPE_UNASSOC] = {
60 .suspend_time = 0,
61 .max_out_time = 0,
62 },
63 [IWL_SCAN_TYPE_WILD] = {
64 .suspend_time = 30,
65 .max_out_time = 120,
66 },
67 [IWL_SCAN_TYPE_MILD] = {
68 .suspend_time = 120,
69 .max_out_time = 120,
70 },
71 [IWL_SCAN_TYPE_FRAGMENTED] = {
72 .suspend_time = 95,
73 .max_out_time = 44,
74 },
75 [IWL_SCAN_TYPE_FAST_BALANCE] = {
76 .suspend_time = 30,
77 .max_out_time = 37,
78 },
79 };
80
81 struct iwl_mvm_scan_params {
82 /* For CDB this is low band scan type, for non-CDB - type. */
83 enum iwl_mvm_scan_type type;
84 enum iwl_mvm_scan_type hb_type;
85 u32 n_channels;
86 u16 delay;
87 int n_ssids;
88 struct cfg80211_ssid *ssids;
89 struct ieee80211_channel **channels;
90 u32 flags;
91 u8 *mac_addr;
92 u8 *mac_addr_mask;
93 bool no_cck;
94 bool pass_all;
95 int n_match_sets;
96 struct iwl_scan_probe_req preq;
97 struct cfg80211_match_set *match_sets;
98 int n_scan_plans;
99 struct cfg80211_sched_scan_plan *scan_plans;
100 bool iter_notif;
101 struct cfg80211_scan_6ghz_params *scan_6ghz_params;
102 u32 n_6ghz_params;
103 bool scan_6ghz;
104 bool enable_6ghz_passive;
105 bool respect_p2p_go, respect_p2p_go_hb;
106 s8 tsf_report_link_id;
107 u8 bssid[ETH_ALEN] __aligned(2);
108 };
109
110 static inline void *iwl_mvm_get_scan_req_umac_data(struct iwl_mvm *mvm)
111 {
112 struct iwl_scan_req_umac *cmd = mvm->scan_cmd;
113
114 if (iwl_mvm_is_adaptive_dwell_v2_supported(mvm))
115 return (void *)&cmd->v8.data;
116
117 if (iwl_mvm_is_adaptive_dwell_supported(mvm))
118 return (void *)&cmd->v7.data;
119
120 if (iwl_mvm_cdb_scan_api(mvm))
121 return (void *)&cmd->v6.data;
122
123 return (void *)&cmd->v1.data;
124 }
125
126 static inline struct iwl_scan_umac_chan_param *
127 iwl_mvm_get_scan_req_umac_channel(struct iwl_mvm *mvm)
128 {
129 struct iwl_scan_req_umac *cmd = mvm->scan_cmd;
130
131 if (iwl_mvm_is_adaptive_dwell_v2_supported(mvm))
132 return &cmd->v8.channel;
133
134 if (iwl_mvm_is_adaptive_dwell_supported(mvm))
135 return &cmd->v7.channel;
136
137 if (iwl_mvm_cdb_scan_api(mvm))
138 return &cmd->v6.channel;
139
140 return &cmd->v1.channel;
141 }
142
143 static u8 iwl_mvm_scan_rx_ant(struct iwl_mvm *mvm)
144 {
145 if (mvm->scan_rx_ant != ANT_NONE)
146 return mvm->scan_rx_ant;
147 return iwl_mvm_get_valid_rx_ant(mvm);
148 }
149
150 static inline __le16 iwl_mvm_scan_rx_chain(struct iwl_mvm *mvm)
151 {
152 u16 rx_chain;
153 u8 rx_ant;
154
155 rx_ant = iwl_mvm_scan_rx_ant(mvm);
156 rx_chain = rx_ant << PHY_RX_CHAIN_VALID_POS;
157 rx_chain |= rx_ant << PHY_RX_CHAIN_FORCE_MIMO_SEL_POS;
158 rx_chain |= rx_ant << PHY_RX_CHAIN_FORCE_SEL_POS;
159 rx_chain |= 0x1 << PHY_RX_CHAIN_DRIVER_FORCE_POS;
160 return cpu_to_le16(rx_chain);
161 }
162
163 static inline __le32
164 iwl_mvm_scan_rate_n_flags(struct iwl_mvm *mvm, enum nl80211_band band,
165 bool no_cck)
166 {
167 u32 tx_ant;
168
169 iwl_mvm_toggle_tx_ant(mvm, &mvm->scan_last_antenna_idx);
170 tx_ant = BIT(mvm->scan_last_antenna_idx) << RATE_MCS_ANT_POS;
171
172 if (band == NL80211_BAND_2GHZ && !no_cck)
173 return cpu_to_le32(IWL_RATE_1M_PLCP | RATE_MCS_CCK_MSK_V1 |
174 tx_ant);
175 else
176 return cpu_to_le32(IWL_RATE_6M_PLCP | tx_ant);
177 }
178
179 static enum iwl_mvm_traffic_load iwl_mvm_get_traffic_load(struct iwl_mvm *mvm)
180 {
181 return mvm->tcm.result.global_load;
182 }
183
184 static enum iwl_mvm_traffic_load
185 iwl_mvm_get_traffic_load_band(struct iwl_mvm *mvm, enum nl80211_band band)
186 {
187 return mvm->tcm.result.band_load[band];
188 }
189
190 struct iwl_mvm_scan_iter_data {
191 u32 global_cnt;
192 struct ieee80211_vif *current_vif;
193 bool is_dcm_with_p2p_go;
194 };
195
196 static void iwl_mvm_scan_iterator(void *_data, u8 *mac,
197 struct ieee80211_vif *vif)
198 {
199 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
200 struct iwl_mvm_scan_iter_data *data = _data;
201 struct iwl_mvm_vif *curr_mvmvif;
202
203 if (vif->type != NL80211_IFTYPE_P2P_DEVICE &&
204 mvmvif->deflink.phy_ctxt &&
205 mvmvif->deflink.phy_ctxt->id < NUM_PHY_CTX)
206 data->global_cnt += 1;
207
208 if (!data->current_vif || vif == data->current_vif)
209 return;
210
211 curr_mvmvif = iwl_mvm_vif_from_mac80211(data->current_vif);
212
213 if (ieee80211_vif_type_p2p(vif) == NL80211_IFTYPE_P2P_GO &&
214 mvmvif->deflink.phy_ctxt && curr_mvmvif->deflink.phy_ctxt &&
215 mvmvif->deflink.phy_ctxt->id != curr_mvmvif->deflink.phy_ctxt->id)
216 data->is_dcm_with_p2p_go = true;
217 }
218
219 static enum
220 iwl_mvm_scan_type _iwl_mvm_get_scan_type(struct iwl_mvm *mvm,
221 struct ieee80211_vif *vif,
222 enum iwl_mvm_traffic_load load,
223 bool low_latency)
224 {
225 struct iwl_mvm_scan_iter_data data = {
226 .current_vif = vif,
227 .is_dcm_with_p2p_go = false,
228 .global_cnt = 0,
229 };
230
231 /*
232 * A scanning AP interface probably wants to generate a survey to do
233 * ACS (automatic channel selection).
234 * Force a non-fragmented scan in that case.
235 */
236 if (vif && ieee80211_vif_type_p2p(vif) == NL80211_IFTYPE_AP)
237 return IWL_SCAN_TYPE_WILD;
238
239 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
240 IEEE80211_IFACE_ITER_NORMAL,
241 iwl_mvm_scan_iterator,
242 &data);
243
244 if (!data.global_cnt)
245 return IWL_SCAN_TYPE_UNASSOC;
246
247 if (fw_has_api(&mvm->fw->ucode_capa,
248 IWL_UCODE_TLV_API_FRAGMENTED_SCAN)) {
249 if ((load == IWL_MVM_TRAFFIC_HIGH || low_latency) &&
250 (!vif || vif->type != NL80211_IFTYPE_P2P_DEVICE))
251 return IWL_SCAN_TYPE_FRAGMENTED;
252
253 /*
254 * in case of DCM with P2P GO set all scan requests as
255 * fast-balance scan
256 */
257 if (vif && vif->type == NL80211_IFTYPE_STATION &&
258 data.is_dcm_with_p2p_go)
259 return IWL_SCAN_TYPE_FAST_BALANCE;
260 }
261
262 if (load >= IWL_MVM_TRAFFIC_MEDIUM || low_latency)
263 return IWL_SCAN_TYPE_MILD;
264
265 return IWL_SCAN_TYPE_WILD;
266 }
267
268 static enum
269 iwl_mvm_scan_type iwl_mvm_get_scan_type(struct iwl_mvm *mvm,
270 struct ieee80211_vif *vif)
271 {
272 enum iwl_mvm_traffic_load load;
273 bool low_latency;
274
275 load = iwl_mvm_get_traffic_load(mvm);
276 low_latency = iwl_mvm_low_latency(mvm);
277
278 return _iwl_mvm_get_scan_type(mvm, vif, load, low_latency);
279 }
280
281 static enum
282 iwl_mvm_scan_type iwl_mvm_get_scan_type_band(struct iwl_mvm *mvm,
283 struct ieee80211_vif *vif,
284 enum nl80211_band band)
285 {
286 enum iwl_mvm_traffic_load load;
287 bool low_latency;
288
289 load = iwl_mvm_get_traffic_load_band(mvm, band);
290 low_latency = iwl_mvm_low_latency_band(mvm, band);
291
292 return _iwl_mvm_get_scan_type(mvm, vif, load, low_latency);
293 }
294
295 static inline bool iwl_mvm_rrm_scan_needed(struct iwl_mvm *mvm)
296 {
297 /* require rrm scan whenever the fw supports it */
298 return fw_has_capa(&mvm->fw->ucode_capa,
299 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT);
300 }
301
302 static int iwl_mvm_max_scan_ie_fw_cmd_room(struct iwl_mvm *mvm)
303 {
304 int max_probe_len;
305
306 max_probe_len = SCAN_OFFLOAD_PROBE_REQ_SIZE;
307
308 /* we create the 802.11 header SSID element and WFA TPC element */
309 max_probe_len -= 24 + 2 + WFA_TPC_IE_LEN;
310
311 /* DS parameter set element is added on 2.4GHZ band if required */
312 if (iwl_mvm_rrm_scan_needed(mvm))
313 max_probe_len -= 3;
314
315 return max_probe_len;
316 }
317
318 int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm)
319 {
320 int max_ie_len = iwl_mvm_max_scan_ie_fw_cmd_room(mvm);
321
322 /* TODO: [BUG] This function should return the maximum allowed size of
323 * scan IEs, however the LMAC scan api contains both 2GHZ and 5GHZ IEs
324 * in the same command. So the correct implementation of this function
325 * is just iwl_mvm_max_scan_ie_fw_cmd_room() / 2. Currently the scan
326 * command has only 512 bytes and it would leave us with about 240
327 * bytes for scan IEs, which is clearly not enough. So meanwhile
328 * we will report an incorrect value. This may result in a failure to
329 * issue a scan in unified_scan_lmac and unified_sched_scan_lmac
330 * functions with -ENOBUFS, if a large enough probe will be provided.
331 */
332 return max_ie_len;
333 }
334
335 void iwl_mvm_rx_lmac_scan_iter_complete_notif(struct iwl_mvm *mvm,
336 struct iwl_rx_cmd_buffer *rxb)
337 {
338 struct iwl_rx_packet *pkt = rxb_addr(rxb);
339 struct iwl_lmac_scan_complete_notif *notif = (void *)pkt->data;
340
341 IWL_DEBUG_SCAN(mvm,
342 "Scan offload iteration complete: status=0x%x scanned channels=%d\n",
343 notif->status, notif->scanned_channels);
344
345 if (mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_FOUND) {
346 IWL_DEBUG_SCAN(mvm, "Pass all scheduled scan results found\n");
347 ieee80211_sched_scan_results(mvm->hw);
348 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_ENABLED;
349 }
350 }
351
352 void iwl_mvm_rx_scan_match_found(struct iwl_mvm *mvm,
353 struct iwl_rx_cmd_buffer *rxb)
354 {
355 IWL_DEBUG_SCAN(mvm, "Scheduled scan results\n");
356 ieee80211_sched_scan_results(mvm->hw);
357 }
358
359 static const char *iwl_mvm_ebs_status_str(enum iwl_scan_ebs_status status)
360 {
361 switch (status) {
362 case IWL_SCAN_EBS_SUCCESS:
363 return "successful";
364 case IWL_SCAN_EBS_INACTIVE:
365 return "inactive";
366 case IWL_SCAN_EBS_FAILED:
367 case IWL_SCAN_EBS_CHAN_NOT_FOUND:
368 default:
369 return "failed";
370 }
371 }
372
373 void iwl_mvm_rx_lmac_scan_complete_notif(struct iwl_mvm *mvm,
374 struct iwl_rx_cmd_buffer *rxb)
375 {
376 struct iwl_rx_packet *pkt = rxb_addr(rxb);
377 struct iwl_periodic_scan_complete *scan_notif = (void *)pkt->data;
378 bool aborted = (scan_notif->status == IWL_SCAN_OFFLOAD_ABORTED);
379
380 /* If this happens, the firmware has mistakenly sent an LMAC
381 * notification during UMAC scans -- warn and ignore it.
382 */
383 if (WARN_ON_ONCE(fw_has_capa(&mvm->fw->ucode_capa,
384 IWL_UCODE_TLV_CAPA_UMAC_SCAN)))
385 return;
386
387 /* scan status must be locked for proper checking */
388 lockdep_assert_held(&mvm->mutex);
389
390 /* We first check if we were stopping a scan, in which case we
391 * just clear the stopping flag. Then we check if it was a
392 * firmware initiated stop, in which case we need to inform
393 * mac80211.
394 * Note that we can have a stopping and a running scan
395 * simultaneously, but we can't have two different types of
396 * scans stopping or running at the same time (since LMAC
397 * doesn't support it).
398 */
399
400 if (mvm->scan_status & IWL_MVM_SCAN_STOPPING_SCHED) {
401 WARN_ON_ONCE(mvm->scan_status & IWL_MVM_SCAN_STOPPING_REGULAR);
402
403 IWL_DEBUG_SCAN(mvm, "Scheduled scan %s, EBS status %s\n",
404 aborted ? "aborted" : "completed",
405 iwl_mvm_ebs_status_str(scan_notif->ebs_status));
406 IWL_DEBUG_SCAN(mvm,
407 "Last line %d, Last iteration %d, Time after last iteration %d\n",
408 scan_notif->last_schedule_line,
409 scan_notif->last_schedule_iteration,
410 __le32_to_cpu(scan_notif->time_after_last_iter));
411
412 mvm->scan_status &= ~IWL_MVM_SCAN_STOPPING_SCHED;
413 } else if (mvm->scan_status & IWL_MVM_SCAN_STOPPING_REGULAR) {
414 IWL_DEBUG_SCAN(mvm, "Regular scan %s, EBS status %s\n",
415 aborted ? "aborted" : "completed",
416 iwl_mvm_ebs_status_str(scan_notif->ebs_status));
417
418 mvm->scan_status &= ~IWL_MVM_SCAN_STOPPING_REGULAR;
419 } else if (mvm->scan_status & IWL_MVM_SCAN_SCHED) {
420 WARN_ON_ONCE(mvm->scan_status & IWL_MVM_SCAN_REGULAR);
421
422 IWL_DEBUG_SCAN(mvm, "Scheduled scan %s, EBS status %s\n",
423 aborted ? "aborted" : "completed",
424 iwl_mvm_ebs_status_str(scan_notif->ebs_status));
425 IWL_DEBUG_SCAN(mvm,
426 "Last line %d, Last iteration %d, Time after last iteration %d (FW)\n",
427 scan_notif->last_schedule_line,
428 scan_notif->last_schedule_iteration,
429 __le32_to_cpu(scan_notif->time_after_last_iter));
430
431 mvm->scan_status &= ~IWL_MVM_SCAN_SCHED;
432 ieee80211_sched_scan_stopped(mvm->hw);
433 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
434 } else if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) {
435 struct cfg80211_scan_info info = {
436 .aborted = aborted,
437 };
438
439 IWL_DEBUG_SCAN(mvm, "Regular scan %s, EBS status %s (FW)\n",
440 aborted ? "aborted" : "completed",
441 iwl_mvm_ebs_status_str(scan_notif->ebs_status));
442
443 mvm->scan_status &= ~IWL_MVM_SCAN_REGULAR;
444 ieee80211_scan_completed(mvm->hw, &info);
445 cancel_delayed_work(&mvm->scan_timeout_dwork);
446 iwl_mvm_resume_tcm(mvm);
447 } else {
448 IWL_ERR(mvm,
449 "got scan complete notification but no scan is running\n");
450 }
451
452 mvm->last_ebs_successful =
453 scan_notif->ebs_status == IWL_SCAN_EBS_SUCCESS ||
454 scan_notif->ebs_status == IWL_SCAN_EBS_INACTIVE;
455 }
456
457 static int iwl_ssid_exist(u8 *ssid, u8 ssid_len, struct iwl_ssid_ie *ssid_list)
458 {
459 int i;
460
461 for (i = 0; i < PROBE_OPTION_MAX; i++) {
462 if (!ssid_list[i].len)
463 break;
464 if (ssid_list[i].len == ssid_len &&
465 !memcmp(ssid_list->ssid, ssid, ssid_len))
466 return i;
467 }
468 return -1;
469 }
470
471 /* We insert the SSIDs in an inverted order, because the FW will
472 * invert it back.
473 */
474 static void iwl_scan_build_ssids(struct iwl_mvm_scan_params *params,
475 struct iwl_ssid_ie *ssids,
476 u32 *ssid_bitmap)
477 {
478 int i, j;
479 int index;
480 u32 tmp_bitmap = 0;
481
482 /*
483 * copy SSIDs from match list.
484 * iwl_config_sched_scan_profiles() uses the order of these ssids to
485 * config match list.
486 */
487 for (i = 0, j = params->n_match_sets - 1;
488 j >= 0 && i < PROBE_OPTION_MAX;
489 i++, j--) {
490 /* skip empty SSID matchsets */
491 if (!params->match_sets[j].ssid.ssid_len)
492 continue;
493 ssids[i].id = WLAN_EID_SSID;
494 ssids[i].len = params->match_sets[j].ssid.ssid_len;
495 memcpy(ssids[i].ssid, params->match_sets[j].ssid.ssid,
496 ssids[i].len);
497 }
498
499 /* add SSIDs from scan SSID list */
500 for (j = params->n_ssids - 1;
501 j >= 0 && i < PROBE_OPTION_MAX;
502 i++, j--) {
503 index = iwl_ssid_exist(params->ssids[j].ssid,
504 params->ssids[j].ssid_len,
505 ssids);
506 if (index < 0) {
507 ssids[i].id = WLAN_EID_SSID;
508 ssids[i].len = params->ssids[j].ssid_len;
509 memcpy(ssids[i].ssid, params->ssids[j].ssid,
510 ssids[i].len);
511 tmp_bitmap |= BIT(i);
512 } else {
513 tmp_bitmap |= BIT(index);
514 }
515 }
516 if (ssid_bitmap)
517 *ssid_bitmap = tmp_bitmap;
518 }
519
520 static int
521 iwl_mvm_config_sched_scan_profiles(struct iwl_mvm *mvm,
522 struct cfg80211_sched_scan_request *req)
523 {
524 struct iwl_scan_offload_profile *profile;
525 struct iwl_scan_offload_profile_cfg_v1 *profile_cfg_v1;
526 struct iwl_scan_offload_blocklist *blocklist;
527 struct iwl_scan_offload_profile_cfg_data *data;
528 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw);
529 int profile_cfg_size = sizeof(*data) +
530 sizeof(*profile) * max_profiles;
531 struct iwl_host_cmd cmd = {
532 .id = SCAN_OFFLOAD_UPDATE_PROFILES_CMD,
533 .len[1] = profile_cfg_size,
534 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
535 .dataflags[1] = IWL_HCMD_DFL_NOCOPY,
536 };
537 int blocklist_len;
538 int i;
539 int ret;
540
541 if (WARN_ON(req->n_match_sets > max_profiles))
542 return -EIO;
543
544 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SHORT_BL)
545 blocklist_len = IWL_SCAN_SHORT_BLACKLIST_LEN;
546 else
547 blocklist_len = IWL_SCAN_MAX_BLACKLIST_LEN;
548
549 blocklist = kcalloc(blocklist_len, sizeof(*blocklist), GFP_KERNEL);
550 if (!blocklist)
551 return -ENOMEM;
552
553 profile_cfg_v1 = kzalloc(profile_cfg_size, GFP_KERNEL);
554 if (!profile_cfg_v1) {
555 ret = -ENOMEM;
556 goto free_blocklist;
557 }
558
559 cmd.data[0] = blocklist;
560 cmd.len[0] = sizeof(*blocklist) * blocklist_len;
561 cmd.data[1] = profile_cfg_v1;
562
563 /* if max_profile is MAX_PROFILES_V2, we have the new API */
564 if (max_profiles == IWL_SCAN_MAX_PROFILES_V2) {
565 struct iwl_scan_offload_profile_cfg *profile_cfg =
566 (struct iwl_scan_offload_profile_cfg *)profile_cfg_v1;
567
568 data = &profile_cfg->data;
569 } else {
570 data = &profile_cfg_v1->data;
571 }
572
573 /* No blocklist configuration */
574 data->num_profiles = req->n_match_sets;
575 data->active_clients = SCAN_CLIENT_SCHED_SCAN;
576 data->pass_match = SCAN_CLIENT_SCHED_SCAN;
577 data->match_notify = SCAN_CLIENT_SCHED_SCAN;
578
579 if (!req->n_match_sets || !req->match_sets[0].ssid.ssid_len)
580 data->any_beacon_notify = SCAN_CLIENT_SCHED_SCAN;
581
582 for (i = 0; i < req->n_match_sets; i++) {
583 profile = &profile_cfg_v1->profiles[i];
584 profile->ssid_index = i;
585 /* Support any cipher and auth algorithm */
586 profile->unicast_cipher = 0xff;
587 profile->auth_alg = IWL_AUTH_ALGO_UNSUPPORTED |
588 IWL_AUTH_ALGO_NONE | IWL_AUTH_ALGO_PSK | IWL_AUTH_ALGO_8021X |
589 IWL_AUTH_ALGO_SAE | IWL_AUTH_ALGO_8021X_SHA384 | IWL_AUTH_ALGO_OWE;
590 profile->network_type = IWL_NETWORK_TYPE_ANY;
591 profile->band_selection = IWL_SCAN_OFFLOAD_SELECT_ANY;
592 profile->client_bitmap = SCAN_CLIENT_SCHED_SCAN;
593 }
594
595 IWL_DEBUG_SCAN(mvm, "Sending scheduled scan profile config\n");
596
597 ret = iwl_mvm_send_cmd(mvm, &cmd);
598 kfree(profile_cfg_v1);
599 free_blocklist:
600 kfree(blocklist);
601
602 return ret;
603 }
604
605 static bool iwl_mvm_scan_pass_all(struct iwl_mvm *mvm,
606 struct cfg80211_sched_scan_request *req)
607 {
608 if (req->n_match_sets && req->match_sets[0].ssid.ssid_len) {
609 IWL_DEBUG_SCAN(mvm,
610 "Sending scheduled scan with filtering, n_match_sets %d\n",
611 req->n_match_sets);
612 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
613 return false;
614 }
615
616 IWL_DEBUG_SCAN(mvm, "Sending Scheduled scan without filtering\n");
617
618 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_ENABLED;
619 return true;
620 }
621
622 static int iwl_mvm_lmac_scan_abort(struct iwl_mvm *mvm)
623 {
624 int ret;
625 struct iwl_host_cmd cmd = {
626 .id = SCAN_OFFLOAD_ABORT_CMD,
627 };
628 u32 status = CAN_ABORT_STATUS;
629
630 ret = iwl_mvm_send_cmd_status(mvm, &cmd, &status);
631 if (ret)
632 return ret;
633
634 if (status != CAN_ABORT_STATUS) {
635 /*
636 * The scan abort will return 1 for success or
637 * 2 for "failure". A failure condition can be
638 * due to simply not being in an active scan which
639 * can occur if we send the scan abort before the
640 * microcode has notified us that a scan is completed.
641 */
642 IWL_DEBUG_SCAN(mvm, "SCAN OFFLOAD ABORT ret %d.\n", status);
643 ret = -ENOENT;
644 }
645
646 return ret;
647 }
648
649 static void iwl_mvm_scan_fill_tx_cmd(struct iwl_mvm *mvm,
650 struct iwl_scan_req_tx_cmd *tx_cmd,
651 bool no_cck)
652 {
653 tx_cmd[0].tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL |
654 TX_CMD_FLG_BT_DIS);
655 tx_cmd[0].rate_n_flags = iwl_mvm_scan_rate_n_flags(mvm,
656 NL80211_BAND_2GHZ,
657 no_cck);
658
659 if (!iwl_mvm_has_new_station_api(mvm->fw)) {
660 tx_cmd[0].sta_id = mvm->aux_sta.sta_id;
661 tx_cmd[1].sta_id = mvm->aux_sta.sta_id;
662
663 /*
664 * Fw doesn't use this sta anymore, pending deprecation via HOST API
665 * change
666 */
667 } else {
668 tx_cmd[0].sta_id = 0xff;
669 tx_cmd[1].sta_id = 0xff;
670 }
671
672 tx_cmd[1].tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL |
673 TX_CMD_FLG_BT_DIS);
674
675 tx_cmd[1].rate_n_flags = iwl_mvm_scan_rate_n_flags(mvm,
676 NL80211_BAND_5GHZ,
677 no_cck);
678 }
679
680 static void
681 iwl_mvm_lmac_scan_cfg_channels(struct iwl_mvm *mvm,
682 struct ieee80211_channel **channels,
683 int n_channels, u32 ssid_bitmap,
684 struct iwl_scan_req_lmac *cmd)
685 {
686 struct iwl_scan_channel_cfg_lmac *channel_cfg = (void *)&cmd->data;
687 int i;
688
689 for (i = 0; i < n_channels; i++) {
690 channel_cfg[i].channel_num =
691 cpu_to_le16(channels[i]->hw_value);
692 channel_cfg[i].iter_count = cpu_to_le16(1);
693 channel_cfg[i].iter_interval = 0;
694 channel_cfg[i].flags =
695 cpu_to_le32(IWL_UNIFIED_SCAN_CHANNEL_PARTIAL |
696 ssid_bitmap);
697 }
698 }
699
700 static u8 *iwl_mvm_copy_and_insert_ds_elem(struct iwl_mvm *mvm, const u8 *ies,
701 size_t len, u8 *const pos)
702 {
703 static const u8 before_ds_params[] = {
704 WLAN_EID_SSID,
705 WLAN_EID_SUPP_RATES,
706 WLAN_EID_REQUEST,
707 WLAN_EID_EXT_SUPP_RATES,
708 };
709 size_t offs;
710 u8 *newpos = pos;
711
712 if (!iwl_mvm_rrm_scan_needed(mvm)) {
713 memcpy(newpos, ies, len);
714 return newpos + len;
715 }
716
717 offs = ieee80211_ie_split(ies, len,
718 before_ds_params,
719 ARRAY_SIZE(before_ds_params),
720 0);
721
722 memcpy(newpos, ies, offs);
723 newpos += offs;
724
725 /* Add a placeholder for DS Parameter Set element */
726 *newpos++ = WLAN_EID_DS_PARAMS;
727 *newpos++ = 1;
728 *newpos++ = 0;
729
730 memcpy(newpos, ies + offs, len - offs);
731 newpos += len - offs;
732
733 return newpos;
734 }
735
736 static void iwl_mvm_add_tpc_report_ie(u8 *pos)
737 {
738 pos[0] = WLAN_EID_VENDOR_SPECIFIC;
739 pos[1] = WFA_TPC_IE_LEN - 2;
740 pos[2] = (WLAN_OUI_MICROSOFT >> 16) & 0xff;
741 pos[3] = (WLAN_OUI_MICROSOFT >> 8) & 0xff;
742 pos[4] = WLAN_OUI_MICROSOFT & 0xff;
743 pos[5] = WLAN_OUI_TYPE_MICROSOFT_TPC;
744 pos[6] = 0;
745 /* pos[7] - tx power will be inserted by the FW */
746 pos[7] = 0;
747 pos[8] = 0;
748 }
749
750 static void
751 iwl_mvm_build_scan_probe(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
752 struct ieee80211_scan_ies *ies,
753 struct iwl_mvm_scan_params *params)
754 {
755 struct ieee80211_mgmt *frame = (void *)params->preq.buf;
756 u8 *pos, *newpos;
757 const u8 *mac_addr = params->flags & NL80211_SCAN_FLAG_RANDOM_ADDR ?
758 params->mac_addr : NULL;
759
760 /*
761 * Unfortunately, right now the offload scan doesn't support randomising
762 * within the firmware, so until the firmware API is ready we implement
763 * it in the driver. This means that the scan iterations won't really be
764 * random, only when it's restarted, but at least that helps a bit.
765 */
766 if (mac_addr)
767 get_random_mask_addr(frame->sa, mac_addr,
768 params->mac_addr_mask);
769 else
770 memcpy(frame->sa, vif->addr, ETH_ALEN);
771
772 frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
773 eth_broadcast_addr(frame->da);
774 ether_addr_copy(frame->bssid, params->bssid);
775 frame->seq_ctrl = 0;
776
777 pos = frame->u.probe_req.variable;
778 *pos++ = WLAN_EID_SSID;
779 *pos++ = 0;
780
781 params->preq.mac_header.offset = 0;
782 params->preq.mac_header.len = cpu_to_le16(24 + 2);
783
784 /* Insert ds parameter set element on 2.4 GHz band */
785 newpos = iwl_mvm_copy_and_insert_ds_elem(mvm,
786 ies->ies[NL80211_BAND_2GHZ],
787 ies->len[NL80211_BAND_2GHZ],
788 pos);
789 params->preq.band_data[0].offset = cpu_to_le16(pos - params->preq.buf);
790 params->preq.band_data[0].len = cpu_to_le16(newpos - pos);
791 pos = newpos;
792
793 memcpy(pos, ies->ies[NL80211_BAND_5GHZ],
794 ies->len[NL80211_BAND_5GHZ]);
795 params->preq.band_data[1].offset = cpu_to_le16(pos - params->preq.buf);
796 params->preq.band_data[1].len =
797 cpu_to_le16(ies->len[NL80211_BAND_5GHZ]);
798 pos += ies->len[NL80211_BAND_5GHZ];
799
800 memcpy(pos, ies->ies[NL80211_BAND_6GHZ],
801 ies->len[NL80211_BAND_6GHZ]);
802 params->preq.band_data[2].offset = cpu_to_le16(pos - params->preq.buf);
803 params->preq.band_data[2].len =
804 cpu_to_le16(ies->len[NL80211_BAND_6GHZ]);
805 pos += ies->len[NL80211_BAND_6GHZ];
806 memcpy(pos, ies->common_ies, ies->common_ie_len);
807 params->preq.common_data.offset = cpu_to_le16(pos - params->preq.buf);
808
809 if (iwl_mvm_rrm_scan_needed(mvm) &&
810 !fw_has_capa(&mvm->fw->ucode_capa,
811 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) {
812 iwl_mvm_add_tpc_report_ie(pos + ies->common_ie_len);
813 params->preq.common_data.len = cpu_to_le16(ies->common_ie_len +
814 WFA_TPC_IE_LEN);
815 } else {
816 params->preq.common_data.len = cpu_to_le16(ies->common_ie_len);
817 }
818 }
819
820 static void iwl_mvm_scan_lmac_dwell(struct iwl_mvm *mvm,
821 struct iwl_scan_req_lmac *cmd,
822 struct iwl_mvm_scan_params *params)
823 {
824 cmd->active_dwell = IWL_SCAN_DWELL_ACTIVE;
825 cmd->passive_dwell = IWL_SCAN_DWELL_PASSIVE;
826 cmd->fragmented_dwell = IWL_SCAN_DWELL_FRAGMENTED;
827 cmd->extended_dwell = IWL_SCAN_DWELL_EXTENDED;
828 cmd->max_out_time = cpu_to_le32(scan_timing[params->type].max_out_time);
829 cmd->suspend_time = cpu_to_le32(scan_timing[params->type].suspend_time);
830 cmd->scan_prio = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
831 }
832
833 static inline bool iwl_mvm_scan_fits(struct iwl_mvm *mvm, int n_ssids,
834 struct ieee80211_scan_ies *ies,
835 int n_channels)
836 {
837 return ((n_ssids <= PROBE_OPTION_MAX) &&
838 (n_channels <= mvm->fw->ucode_capa.n_scan_channels) &
839 (ies->common_ie_len +
840 ies->len[NL80211_BAND_2GHZ] + ies->len[NL80211_BAND_5GHZ] +
841 ies->len[NL80211_BAND_6GHZ] <=
842 iwl_mvm_max_scan_ie_fw_cmd_room(mvm)));
843 }
844
845 static inline bool iwl_mvm_scan_use_ebs(struct iwl_mvm *mvm,
846 struct ieee80211_vif *vif)
847 {
848 const struct iwl_ucode_capabilities *capa = &mvm->fw->ucode_capa;
849 bool low_latency;
850
851 if (iwl_mvm_is_cdb_supported(mvm))
852 low_latency = iwl_mvm_low_latency_band(mvm, NL80211_BAND_5GHZ);
853 else
854 low_latency = iwl_mvm_low_latency(mvm);
855
856 /* We can only use EBS if:
857 * 1. the feature is supported;
858 * 2. the last EBS was successful;
859 * 3. if only single scan, the single scan EBS API is supported;
860 * 4. it's not a p2p find operation.
861 * 5. we are not in low latency mode,
862 * or if fragmented ebs is supported by the FW
863 * 6. the VIF is not an AP interface (scan wants survey results)
864 */
865 return ((capa->flags & IWL_UCODE_TLV_FLAGS_EBS_SUPPORT) &&
866 mvm->last_ebs_successful && IWL_MVM_ENABLE_EBS &&
867 vif->type != NL80211_IFTYPE_P2P_DEVICE &&
868 (!low_latency || iwl_mvm_is_frag_ebs_supported(mvm)) &&
869 ieee80211_vif_type_p2p(vif) != NL80211_IFTYPE_AP);
870 }
871
872 static inline bool iwl_mvm_is_regular_scan(struct iwl_mvm_scan_params *params)
873 {
874 return params->n_scan_plans == 1 &&
875 params->scan_plans[0].iterations == 1;
876 }
877
878 static bool iwl_mvm_is_scan_fragmented(enum iwl_mvm_scan_type type)
879 {
880 return (type == IWL_SCAN_TYPE_FRAGMENTED ||
881 type == IWL_SCAN_TYPE_FAST_BALANCE);
882 }
883
884 static int iwl_mvm_scan_lmac_flags(struct iwl_mvm *mvm,
885 struct iwl_mvm_scan_params *params,
886 struct ieee80211_vif *vif)
887 {
888 int flags = 0;
889
890 if (params->n_ssids == 0)
891 flags |= IWL_MVM_LMAC_SCAN_FLAG_PASSIVE;
892
893 if (params->n_ssids == 1 && params->ssids[0].ssid_len != 0)
894 flags |= IWL_MVM_LMAC_SCAN_FLAG_PRE_CONNECTION;
895
896 if (iwl_mvm_is_scan_fragmented(params->type))
897 flags |= IWL_MVM_LMAC_SCAN_FLAG_FRAGMENTED;
898
899 if (iwl_mvm_rrm_scan_needed(mvm) &&
900 fw_has_capa(&mvm->fw->ucode_capa,
901 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
902 flags |= IWL_MVM_LMAC_SCAN_FLAGS_RRM_ENABLED;
903
904 if (params->pass_all)
905 flags |= IWL_MVM_LMAC_SCAN_FLAG_PASS_ALL;
906 else
907 flags |= IWL_MVM_LMAC_SCAN_FLAG_MATCH;
908
909 #ifdef CONFIG_IWLWIFI_DEBUGFS
910 if (mvm->scan_iter_notif_enabled)
911 flags |= IWL_MVM_LMAC_SCAN_FLAG_ITER_COMPLETE;
912 #endif
913
914 if (mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_ENABLED)
915 flags |= IWL_MVM_LMAC_SCAN_FLAG_ITER_COMPLETE;
916
917 if (iwl_mvm_is_regular_scan(params) &&
918 vif->type != NL80211_IFTYPE_P2P_DEVICE &&
919 !iwl_mvm_is_scan_fragmented(params->type))
920 flags |= IWL_MVM_LMAC_SCAN_FLAG_EXTENDED_DWELL;
921
922 return flags;
923 }
924
925 static void
926 iwl_mvm_scan_set_legacy_probe_req(struct iwl_scan_probe_req_v1 *p_req,
927 struct iwl_scan_probe_req *src_p_req)
928 {
929 int i;
930
931 p_req->mac_header = src_p_req->mac_header;
932 for (i = 0; i < SCAN_NUM_BAND_PROBE_DATA_V_1; i++)
933 p_req->band_data[i] = src_p_req->band_data[i];
934 p_req->common_data = src_p_req->common_data;
935 memcpy(p_req->buf, src_p_req->buf, sizeof(p_req->buf));
936 }
937
938 static int iwl_mvm_scan_lmac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
939 struct iwl_mvm_scan_params *params)
940 {
941 struct iwl_scan_req_lmac *cmd = mvm->scan_cmd;
942 struct iwl_scan_probe_req_v1 *preq =
943 (void *)(cmd->data + sizeof(struct iwl_scan_channel_cfg_lmac) *
944 mvm->fw->ucode_capa.n_scan_channels);
945 u32 ssid_bitmap = 0;
946 int i;
947 u8 band;
948
949 if (WARN_ON(params->n_scan_plans > IWL_MAX_SCHED_SCAN_PLANS))
950 return -EINVAL;
951
952 iwl_mvm_scan_lmac_dwell(mvm, cmd, params);
953
954 cmd->rx_chain_select = iwl_mvm_scan_rx_chain(mvm);
955 cmd->iter_num = cpu_to_le32(1);
956 cmd->n_channels = (u8)params->n_channels;
957
958 cmd->delay = cpu_to_le32(params->delay);
959
960 cmd->scan_flags = cpu_to_le32(iwl_mvm_scan_lmac_flags(mvm, params,
961 vif));
962
963 band = iwl_mvm_phy_band_from_nl80211(params->channels[0]->band);
964 cmd->flags = cpu_to_le32(band);
965 cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP |
966 MAC_FILTER_IN_BEACON);
967 iwl_mvm_scan_fill_tx_cmd(mvm, cmd->tx_cmd, params->no_cck);
968 iwl_scan_build_ssids(params, cmd->direct_scan, &ssid_bitmap);
969
970 /* this API uses bits 1-20 instead of 0-19 */
971 ssid_bitmap <<= 1;
972
973 for (i = 0; i < params->n_scan_plans; i++) {
974 struct cfg80211_sched_scan_plan *scan_plan =
975 &params->scan_plans[i];
976
977 cmd->schedule[i].delay =
978 cpu_to_le16(scan_plan->interval);
979 cmd->schedule[i].iterations = scan_plan->iterations;
980 cmd->schedule[i].full_scan_mul = 1;
981 }
982
983 /*
984 * If the number of iterations of the last scan plan is set to
985 * zero, it should run infinitely. However, this is not always the case.
986 * For example, when regular scan is requested the driver sets one scan
987 * plan with one iteration.
988 */
989 if (!cmd->schedule[i - 1].iterations)
990 cmd->schedule[i - 1].iterations = 0xff;
991
992 if (iwl_mvm_scan_use_ebs(mvm, vif)) {
993 cmd->channel_opt[0].flags =
994 cpu_to_le16(IWL_SCAN_CHANNEL_FLAG_EBS |
995 IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
996 IWL_SCAN_CHANNEL_FLAG_CACHE_ADD);
997 cmd->channel_opt[0].non_ebs_ratio =
998 cpu_to_le16(IWL_DENSE_EBS_SCAN_RATIO);
999 cmd->channel_opt[1].flags =
1000 cpu_to_le16(IWL_SCAN_CHANNEL_FLAG_EBS |
1001 IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
1002 IWL_SCAN_CHANNEL_FLAG_CACHE_ADD);
1003 cmd->channel_opt[1].non_ebs_ratio =
1004 cpu_to_le16(IWL_SPARSE_EBS_SCAN_RATIO);
1005 }
1006
1007 iwl_mvm_lmac_scan_cfg_channels(mvm, params->channels,
1008 params->n_channels, ssid_bitmap, cmd);
1009
1010 iwl_mvm_scan_set_legacy_probe_req(preq, &params->preq);
1011
1012 return 0;
1013 }
1014
1015 static int rate_to_scan_rate_flag(unsigned int rate)
1016 {
1017 static const int rate_to_scan_rate[IWL_RATE_COUNT] = {
1018 [IWL_RATE_1M_INDEX] = SCAN_CONFIG_RATE_1M,
1019 [IWL_RATE_2M_INDEX] = SCAN_CONFIG_RATE_2M,
1020 [IWL_RATE_5M_INDEX] = SCAN_CONFIG_RATE_5M,
1021 [IWL_RATE_11M_INDEX] = SCAN_CONFIG_RATE_11M,
1022 [IWL_RATE_6M_INDEX] = SCAN_CONFIG_RATE_6M,
1023 [IWL_RATE_9M_INDEX] = SCAN_CONFIG_RATE_9M,
1024 [IWL_RATE_12M_INDEX] = SCAN_CONFIG_RATE_12M,
1025 [IWL_RATE_18M_INDEX] = SCAN_CONFIG_RATE_18M,
1026 [IWL_RATE_24M_INDEX] = SCAN_CONFIG_RATE_24M,
1027 [IWL_RATE_36M_INDEX] = SCAN_CONFIG_RATE_36M,
1028 [IWL_RATE_48M_INDEX] = SCAN_CONFIG_RATE_48M,
1029 [IWL_RATE_54M_INDEX] = SCAN_CONFIG_RATE_54M,
1030 };
1031
1032 return rate_to_scan_rate[rate];
1033 }
1034
1035 static __le32 iwl_mvm_scan_config_rates(struct iwl_mvm *mvm)
1036 {
1037 struct ieee80211_supported_band *band;
1038 unsigned int rates = 0;
1039 int i;
1040
1041 band = &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
1042 for (i = 0; i < band->n_bitrates; i++)
1043 rates |= rate_to_scan_rate_flag(band->bitrates[i].hw_value);
1044 band = &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
1045 for (i = 0; i < band->n_bitrates; i++)
1046 rates |= rate_to_scan_rate_flag(band->bitrates[i].hw_value);
1047
1048 /* Set both basic rates and supported rates */
1049 rates |= SCAN_CONFIG_SUPPORTED_RATE(rates);
1050
1051 return cpu_to_le32(rates);
1052 }
1053
1054 static void iwl_mvm_fill_scan_dwell(struct iwl_mvm *mvm,
1055 struct iwl_scan_dwell *dwell)
1056 {
1057 dwell->active = IWL_SCAN_DWELL_ACTIVE;
1058 dwell->passive = IWL_SCAN_DWELL_PASSIVE;
1059 dwell->fragmented = IWL_SCAN_DWELL_FRAGMENTED;
1060 dwell->extended = IWL_SCAN_DWELL_EXTENDED;
1061 }
1062
1063 static void iwl_mvm_fill_channels(struct iwl_mvm *mvm, u8 *channels,
1064 u32 max_channels)
1065 {
1066 struct ieee80211_supported_band *band;
1067 int i, j = 0;
1068
1069 band = &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
1070 for (i = 0; i < band->n_channels && j < max_channels; i++, j++)
1071 channels[j] = band->channels[i].hw_value;
1072 band = &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
1073 for (i = 0; i < band->n_channels && j < max_channels; i++, j++)
1074 channels[j] = band->channels[i].hw_value;
1075 }
1076
1077 static void iwl_mvm_fill_scan_config_v1(struct iwl_mvm *mvm, void *config,
1078 u32 flags, u8 channel_flags,
1079 u32 max_channels)
1080 {
1081 enum iwl_mvm_scan_type type = iwl_mvm_get_scan_type(mvm, NULL);
1082 struct iwl_scan_config_v1 *cfg = config;
1083
1084 cfg->flags = cpu_to_le32(flags);
1085 cfg->tx_chains = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm));
1086 cfg->rx_chains = cpu_to_le32(iwl_mvm_scan_rx_ant(mvm));
1087 cfg->legacy_rates = iwl_mvm_scan_config_rates(mvm);
1088 cfg->out_of_channel_time = cpu_to_le32(scan_timing[type].max_out_time);
1089 cfg->suspend_time = cpu_to_le32(scan_timing[type].suspend_time);
1090
1091 iwl_mvm_fill_scan_dwell(mvm, &cfg->dwell);
1092
1093 memcpy(&cfg->mac_addr, &mvm->addresses[0].addr, ETH_ALEN);
1094
1095 /* This function should not be called when using ADD_STA ver >=12 */
1096 WARN_ON_ONCE(iwl_mvm_has_new_station_api(mvm->fw));
1097
1098 cfg->bcast_sta_id = mvm->aux_sta.sta_id;
1099 cfg->channel_flags = channel_flags;
1100
1101 iwl_mvm_fill_channels(mvm, cfg->channel_array, max_channels);
1102 }
1103
1104 static void iwl_mvm_fill_scan_config_v2(struct iwl_mvm *mvm, void *config,
1105 u32 flags, u8 channel_flags,
1106 u32 max_channels)
1107 {
1108 struct iwl_scan_config_v2 *cfg = config;
1109
1110 cfg->flags = cpu_to_le32(flags);
1111 cfg->tx_chains = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm));
1112 cfg->rx_chains = cpu_to_le32(iwl_mvm_scan_rx_ant(mvm));
1113 cfg->legacy_rates = iwl_mvm_scan_config_rates(mvm);
1114
1115 if (iwl_mvm_is_cdb_supported(mvm)) {
1116 enum iwl_mvm_scan_type lb_type, hb_type;
1117
1118 lb_type = iwl_mvm_get_scan_type_band(mvm, NULL,
1119 NL80211_BAND_2GHZ);
1120 hb_type = iwl_mvm_get_scan_type_band(mvm, NULL,
1121 NL80211_BAND_5GHZ);
1122
1123 cfg->out_of_channel_time[SCAN_LB_LMAC_IDX] =
1124 cpu_to_le32(scan_timing[lb_type].max_out_time);
1125 cfg->suspend_time[SCAN_LB_LMAC_IDX] =
1126 cpu_to_le32(scan_timing[lb_type].suspend_time);
1127
1128 cfg->out_of_channel_time[SCAN_HB_LMAC_IDX] =
1129 cpu_to_le32(scan_timing[hb_type].max_out_time);
1130 cfg->suspend_time[SCAN_HB_LMAC_IDX] =
1131 cpu_to_le32(scan_timing[hb_type].suspend_time);
1132 } else {
1133 enum iwl_mvm_scan_type type =
1134 iwl_mvm_get_scan_type(mvm, NULL);
1135
1136 cfg->out_of_channel_time[SCAN_LB_LMAC_IDX] =
1137 cpu_to_le32(scan_timing[type].max_out_time);
1138 cfg->suspend_time[SCAN_LB_LMAC_IDX] =
1139 cpu_to_le32(scan_timing[type].suspend_time);
1140 }
1141
1142 iwl_mvm_fill_scan_dwell(mvm, &cfg->dwell);
1143
1144 memcpy(&cfg->mac_addr, &mvm->addresses[0].addr, ETH_ALEN);
1145
1146 /* This function should not be called when using ADD_STA ver >=12 */
1147 WARN_ON_ONCE(iwl_mvm_has_new_station_api(mvm->fw));
1148
1149 cfg->bcast_sta_id = mvm->aux_sta.sta_id;
1150 cfg->channel_flags = channel_flags;
1151
1152 iwl_mvm_fill_channels(mvm, cfg->channel_array, max_channels);
1153 }
1154
1155 static int iwl_mvm_legacy_config_scan(struct iwl_mvm *mvm)
1156 {
1157 void *cfg;
1158 int ret, cmd_size;
1159 struct iwl_host_cmd cmd = {
1160 .id = WIDE_ID(IWL_ALWAYS_LONG_GROUP, SCAN_CFG_CMD),
1161 };
1162 enum iwl_mvm_scan_type type;
1163 enum iwl_mvm_scan_type hb_type = IWL_SCAN_TYPE_NOT_SET;
1164 int num_channels =
1165 mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels +
1166 mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels;
1167 u32 flags;
1168 u8 channel_flags;
1169
1170 if (WARN_ON(num_channels > mvm->fw->ucode_capa.n_scan_channels))
1171 num_channels = mvm->fw->ucode_capa.n_scan_channels;
1172
1173 if (iwl_mvm_is_cdb_supported(mvm)) {
1174 type = iwl_mvm_get_scan_type_band(mvm, NULL,
1175 NL80211_BAND_2GHZ);
1176 hb_type = iwl_mvm_get_scan_type_band(mvm, NULL,
1177 NL80211_BAND_5GHZ);
1178 if (type == mvm->scan_type && hb_type == mvm->hb_scan_type)
1179 return 0;
1180 } else {
1181 type = iwl_mvm_get_scan_type(mvm, NULL);
1182 if (type == mvm->scan_type)
1183 return 0;
1184 }
1185
1186 if (iwl_mvm_cdb_scan_api(mvm))
1187 cmd_size = sizeof(struct iwl_scan_config_v2);
1188 else
1189 cmd_size = sizeof(struct iwl_scan_config_v1);
1190 cmd_size += mvm->fw->ucode_capa.n_scan_channels;
1191
1192 cfg = kzalloc(cmd_size, GFP_KERNEL);
1193 if (!cfg)
1194 return -ENOMEM;
1195
1196 flags = SCAN_CONFIG_FLAG_ACTIVATE |
1197 SCAN_CONFIG_FLAG_ALLOW_CHUB_REQS |
1198 SCAN_CONFIG_FLAG_SET_TX_CHAINS |
1199 SCAN_CONFIG_FLAG_SET_RX_CHAINS |
1200 SCAN_CONFIG_FLAG_SET_AUX_STA_ID |
1201 SCAN_CONFIG_FLAG_SET_ALL_TIMES |
1202 SCAN_CONFIG_FLAG_SET_LEGACY_RATES |
1203 SCAN_CONFIG_FLAG_SET_MAC_ADDR |
1204 SCAN_CONFIG_FLAG_SET_CHANNEL_FLAGS |
1205 SCAN_CONFIG_N_CHANNELS(num_channels) |
1206 (iwl_mvm_is_scan_fragmented(type) ?
1207 SCAN_CONFIG_FLAG_SET_FRAGMENTED :
1208 SCAN_CONFIG_FLAG_CLEAR_FRAGMENTED);
1209
1210 channel_flags = IWL_CHANNEL_FLAG_EBS |
1211 IWL_CHANNEL_FLAG_ACCURATE_EBS |
1212 IWL_CHANNEL_FLAG_EBS_ADD |
1213 IWL_CHANNEL_FLAG_PRE_SCAN_PASSIVE2ACTIVE;
1214
1215 /*
1216 * Check for fragmented scan on LMAC2 - high band.
1217 * LMAC1 - low band is checked above.
1218 */
1219 if (iwl_mvm_cdb_scan_api(mvm)) {
1220 if (iwl_mvm_is_cdb_supported(mvm))
1221 flags |= (iwl_mvm_is_scan_fragmented(hb_type)) ?
1222 SCAN_CONFIG_FLAG_SET_LMAC2_FRAGMENTED :
1223 SCAN_CONFIG_FLAG_CLEAR_LMAC2_FRAGMENTED;
1224 iwl_mvm_fill_scan_config_v2(mvm, cfg, flags, channel_flags,
1225 num_channels);
1226 } else {
1227 iwl_mvm_fill_scan_config_v1(mvm, cfg, flags, channel_flags,
1228 num_channels);
1229 }
1230
1231 cmd.data[0] = cfg;
1232 cmd.len[0] = cmd_size;
1233 cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
1234
1235 IWL_DEBUG_SCAN(mvm, "Sending UMAC scan config\n");
1236
1237 ret = iwl_mvm_send_cmd(mvm, &cmd);
1238 if (!ret) {
1239 mvm->scan_type = type;
1240 mvm->hb_scan_type = hb_type;
1241 }
1242
1243 kfree(cfg);
1244 return ret;
1245 }
1246
1247 int iwl_mvm_config_scan(struct iwl_mvm *mvm)
1248 {
1249 struct iwl_scan_config cfg;
1250 struct iwl_host_cmd cmd = {
1251 .id = WIDE_ID(IWL_ALWAYS_LONG_GROUP, SCAN_CFG_CMD),
1252 .len[0] = sizeof(cfg),
1253 .data[0] = &cfg,
1254 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1255 };
1256
1257 if (!iwl_mvm_is_reduced_config_scan_supported(mvm))
1258 return iwl_mvm_legacy_config_scan(mvm);
1259
1260 memset(&cfg, 0, sizeof(cfg));
1261
1262 if (!iwl_mvm_has_new_station_api(mvm->fw)) {
1263 cfg.bcast_sta_id = mvm->aux_sta.sta_id;
1264 } else if (iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_CFG_CMD, 0) < 5) {
1265 /*
1266 * Fw doesn't use this sta anymore. Deprecated on SCAN_CFG_CMD
1267 * version 5.
1268 */
1269 cfg.bcast_sta_id = 0xff;
1270 }
1271
1272 cfg.tx_chains = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm));
1273 cfg.rx_chains = cpu_to_le32(iwl_mvm_scan_rx_ant(mvm));
1274
1275 IWL_DEBUG_SCAN(mvm, "Sending UMAC scan config\n");
1276
1277 return iwl_mvm_send_cmd(mvm, &cmd);
1278 }
1279
1280 static int iwl_mvm_scan_uid_by_status(struct iwl_mvm *mvm, int status)
1281 {
1282 int i;
1283
1284 for (i = 0; i < mvm->max_scans; i++)
1285 if (mvm->scan_uid_status[i] == status)
1286 return i;
1287
1288 return -ENOENT;
1289 }
1290
1291 static void iwl_mvm_scan_umac_dwell(struct iwl_mvm *mvm,
1292 struct iwl_scan_req_umac *cmd,
1293 struct iwl_mvm_scan_params *params)
1294 {
1295 struct iwl_mvm_scan_timing_params *timing, *hb_timing;
1296 u8 active_dwell, passive_dwell;
1297
1298 timing = &scan_timing[params->type];
1299 active_dwell = IWL_SCAN_DWELL_ACTIVE;
1300 passive_dwell = IWL_SCAN_DWELL_PASSIVE;
1301
1302 if (iwl_mvm_is_adaptive_dwell_supported(mvm)) {
1303 cmd->v7.adwell_default_n_aps_social =
1304 IWL_SCAN_ADWELL_DEFAULT_N_APS_SOCIAL;
1305 cmd->v7.adwell_default_n_aps =
1306 IWL_SCAN_ADWELL_DEFAULT_LB_N_APS;
1307
1308 if (iwl_mvm_is_adwell_hb_ap_num_supported(mvm))
1309 cmd->v9.adwell_default_hb_n_aps =
1310 IWL_SCAN_ADWELL_DEFAULT_HB_N_APS;
1311
1312 /* if custom max budget was configured with debugfs */
1313 if (IWL_MVM_ADWELL_MAX_BUDGET)
1314 cmd->v7.adwell_max_budget =
1315 cpu_to_le16(IWL_MVM_ADWELL_MAX_BUDGET);
1316 else if (params->n_ssids && params->ssids[0].ssid_len)
1317 cmd->v7.adwell_max_budget =
1318 cpu_to_le16(IWL_SCAN_ADWELL_MAX_BUDGET_DIRECTED_SCAN);
1319 else
1320 cmd->v7.adwell_max_budget =
1321 cpu_to_le16(IWL_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN);
1322
1323 cmd->v7.scan_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
1324 cmd->v7.max_out_time[SCAN_LB_LMAC_IDX] =
1325 cpu_to_le32(timing->max_out_time);
1326 cmd->v7.suspend_time[SCAN_LB_LMAC_IDX] =
1327 cpu_to_le32(timing->suspend_time);
1328
1329 if (iwl_mvm_is_cdb_supported(mvm)) {
1330 hb_timing = &scan_timing[params->hb_type];
1331
1332 cmd->v7.max_out_time[SCAN_HB_LMAC_IDX] =
1333 cpu_to_le32(hb_timing->max_out_time);
1334 cmd->v7.suspend_time[SCAN_HB_LMAC_IDX] =
1335 cpu_to_le32(hb_timing->suspend_time);
1336 }
1337
1338 if (!iwl_mvm_is_adaptive_dwell_v2_supported(mvm)) {
1339 cmd->v7.active_dwell = active_dwell;
1340 cmd->v7.passive_dwell = passive_dwell;
1341 cmd->v7.fragmented_dwell = IWL_SCAN_DWELL_FRAGMENTED;
1342 } else {
1343 cmd->v8.active_dwell[SCAN_LB_LMAC_IDX] = active_dwell;
1344 cmd->v8.passive_dwell[SCAN_LB_LMAC_IDX] = passive_dwell;
1345 if (iwl_mvm_is_cdb_supported(mvm)) {
1346 cmd->v8.active_dwell[SCAN_HB_LMAC_IDX] =
1347 active_dwell;
1348 cmd->v8.passive_dwell[SCAN_HB_LMAC_IDX] =
1349 passive_dwell;
1350 }
1351 }
1352 } else {
1353 cmd->v1.extended_dwell = IWL_SCAN_DWELL_EXTENDED;
1354 cmd->v1.active_dwell = active_dwell;
1355 cmd->v1.passive_dwell = passive_dwell;
1356 cmd->v1.fragmented_dwell = IWL_SCAN_DWELL_FRAGMENTED;
1357
1358 if (iwl_mvm_is_cdb_supported(mvm)) {
1359 hb_timing = &scan_timing[params->hb_type];
1360
1361 cmd->v6.max_out_time[SCAN_HB_LMAC_IDX] =
1362 cpu_to_le32(hb_timing->max_out_time);
1363 cmd->v6.suspend_time[SCAN_HB_LMAC_IDX] =
1364 cpu_to_le32(hb_timing->suspend_time);
1365 }
1366
1367 if (iwl_mvm_cdb_scan_api(mvm)) {
1368 cmd->v6.scan_priority =
1369 cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
1370 cmd->v6.max_out_time[SCAN_LB_LMAC_IDX] =
1371 cpu_to_le32(timing->max_out_time);
1372 cmd->v6.suspend_time[SCAN_LB_LMAC_IDX] =
1373 cpu_to_le32(timing->suspend_time);
1374 } else {
1375 cmd->v1.scan_priority =
1376 cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
1377 cmd->v1.max_out_time =
1378 cpu_to_le32(timing->max_out_time);
1379 cmd->v1.suspend_time =
1380 cpu_to_le32(timing->suspend_time);
1381 }
1382 }
1383
1384 if (iwl_mvm_is_regular_scan(params))
1385 cmd->ooc_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
1386 else
1387 cmd->ooc_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_2);
1388 }
1389
1390 static u32 iwl_mvm_scan_umac_ooc_priority(int type)
1391 {
1392 if (type == IWL_MVM_SCAN_REGULAR)
1393 return IWL_SCAN_PRIORITY_EXT_6;
1394 if (type == IWL_MVM_SCAN_INT_MLO)
1395 return IWL_SCAN_PRIORITY_EXT_4;
1396
1397 return IWL_SCAN_PRIORITY_EXT_2;
1398 }
1399
1400 static void
1401 iwl_mvm_scan_umac_dwell_v11(struct iwl_mvm *mvm,
1402 struct iwl_scan_general_params_v11 *general_params,
1403 struct iwl_mvm_scan_params *params)
1404 {
1405 struct iwl_mvm_scan_timing_params *timing, *hb_timing;
1406 u8 active_dwell, passive_dwell;
1407
1408 timing = &scan_timing[params->type];
1409 active_dwell = IWL_SCAN_DWELL_ACTIVE;
1410 passive_dwell = IWL_SCAN_DWELL_PASSIVE;
1411
1412 general_params->adwell_default_social_chn =
1413 IWL_SCAN_ADWELL_DEFAULT_N_APS_SOCIAL;
1414 general_params->adwell_default_2g = IWL_SCAN_ADWELL_DEFAULT_LB_N_APS;
1415 general_params->adwell_default_5g = IWL_SCAN_ADWELL_DEFAULT_HB_N_APS;
1416
1417 /* if custom max budget was configured with debugfs */
1418 if (IWL_MVM_ADWELL_MAX_BUDGET)
1419 general_params->adwell_max_budget =
1420 cpu_to_le16(IWL_MVM_ADWELL_MAX_BUDGET);
1421 else if (params->n_ssids && params->ssids[0].ssid_len)
1422 general_params->adwell_max_budget =
1423 cpu_to_le16(IWL_SCAN_ADWELL_MAX_BUDGET_DIRECTED_SCAN);
1424 else
1425 general_params->adwell_max_budget =
1426 cpu_to_le16(IWL_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN);
1427
1428 general_params->scan_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
1429 general_params->max_out_of_time[SCAN_LB_LMAC_IDX] =
1430 cpu_to_le32(timing->max_out_time);
1431 general_params->suspend_time[SCAN_LB_LMAC_IDX] =
1432 cpu_to_le32(timing->suspend_time);
1433
1434 hb_timing = &scan_timing[params->hb_type];
1435
1436 general_params->max_out_of_time[SCAN_HB_LMAC_IDX] =
1437 cpu_to_le32(hb_timing->max_out_time);
1438 general_params->suspend_time[SCAN_HB_LMAC_IDX] =
1439 cpu_to_le32(hb_timing->suspend_time);
1440
1441 general_params->active_dwell[SCAN_LB_LMAC_IDX] = active_dwell;
1442 general_params->passive_dwell[SCAN_LB_LMAC_IDX] = passive_dwell;
1443 general_params->active_dwell[SCAN_HB_LMAC_IDX] = active_dwell;
1444 general_params->passive_dwell[SCAN_HB_LMAC_IDX] = passive_dwell;
1445 }
1446
1447 struct iwl_mvm_scan_channel_segment {
1448 u8 start_idx;
1449 u8 end_idx;
1450 u8 first_channel_id;
1451 u8 last_channel_id;
1452 u8 channel_spacing_shift;
1453 u8 band;
1454 };
1455
1456 static const struct iwl_mvm_scan_channel_segment scan_channel_segments[] = {
1457 {
1458 .start_idx = 0,
1459 .end_idx = 13,
1460 .first_channel_id = 1,
1461 .last_channel_id = 14,
1462 .channel_spacing_shift = 0,
1463 .band = PHY_BAND_24
1464 },
1465 {
1466 .start_idx = 14,
1467 .end_idx = 41,
1468 .first_channel_id = 36,
1469 .last_channel_id = 144,
1470 .channel_spacing_shift = 2,
1471 .band = PHY_BAND_5
1472 },
1473 {
1474 .start_idx = 42,
1475 .end_idx = 50,
1476 .first_channel_id = 149,
1477 .last_channel_id = 181,
1478 .channel_spacing_shift = 2,
1479 .band = PHY_BAND_5
1480 },
1481 {
1482 .start_idx = 51,
1483 .end_idx = 111,
1484 .first_channel_id = 1,
1485 .last_channel_id = 241,
1486 .channel_spacing_shift = 2,
1487 .band = PHY_BAND_6
1488 },
1489 };
1490
1491 static int iwl_mvm_scan_ch_and_band_to_idx(u8 channel_id, u8 band)
1492 {
1493 int i, index;
1494
1495 if (!channel_id)
1496 return -EINVAL;
1497
1498 for (i = 0; i < ARRAY_SIZE(scan_channel_segments); i++) {
1499 const struct iwl_mvm_scan_channel_segment *ch_segment =
1500 &scan_channel_segments[i];
1501 u32 ch_offset;
1502
1503 if (ch_segment->band != band ||
1504 ch_segment->first_channel_id > channel_id ||
1505 ch_segment->last_channel_id < channel_id)
1506 continue;
1507
1508 ch_offset = (channel_id - ch_segment->first_channel_id) >>
1509 ch_segment->channel_spacing_shift;
1510
1511 index = scan_channel_segments[i].start_idx + ch_offset;
1512 if (index < IWL_SCAN_NUM_CHANNELS)
1513 return index;
1514
1515 break;
1516 }
1517
1518 return -EINVAL;
1519 }
1520
1521 static const u8 p2p_go_friendly_chs[] = {
1522 36, 40, 44, 48, 149, 153, 157, 161, 165,
1523 };
1524
1525 static const u8 social_chs[] = {
1526 1, 6, 11
1527 };
1528
1529 static void iwl_mvm_scan_ch_add_n_aps_override(enum nl80211_iftype vif_type,
1530 u8 ch_id, u8 band, u8 *ch_bitmap,
1531 size_t bitmap_n_entries)
1532 {
1533 int i;
1534
1535 if (vif_type != NL80211_IFTYPE_P2P_DEVICE)
1536 return;
1537
1538 for (i = 0; i < ARRAY_SIZE(p2p_go_friendly_chs); i++) {
1539 if (p2p_go_friendly_chs[i] == ch_id) {
1540 int ch_idx, bitmap_idx;
1541
1542 ch_idx = iwl_mvm_scan_ch_and_band_to_idx(ch_id, band);
1543 if (ch_idx < 0)
1544 return;
1545
1546 bitmap_idx = ch_idx / 8;
1547 if (bitmap_idx >= bitmap_n_entries)
1548 return;
1549
1550 ch_idx = ch_idx % 8;
1551 ch_bitmap[bitmap_idx] |= BIT(ch_idx);
1552
1553 return;
1554 }
1555 }
1556 }
1557
1558 static u32 iwl_mvm_scan_ch_n_aps_flag(enum nl80211_iftype vif_type, u8 ch_id)
1559 {
1560 int i;
1561 u32 flags = 0;
1562
1563 if (vif_type != NL80211_IFTYPE_P2P_DEVICE)
1564 goto out;
1565
1566 for (i = 0; i < ARRAY_SIZE(p2p_go_friendly_chs); i++) {
1567 if (p2p_go_friendly_chs[i] == ch_id) {
1568 flags |= IWL_SCAN_ADWELL_N_APS_GO_FRIENDLY_BIT;
1569 break;
1570 }
1571 }
1572
1573 if (flags)
1574 goto out;
1575
1576 for (i = 0; i < ARRAY_SIZE(social_chs); i++) {
1577 if (social_chs[i] == ch_id) {
1578 flags |= IWL_SCAN_ADWELL_N_APS_SOCIAL_CHS_BIT;
1579 break;
1580 }
1581 }
1582
1583 out:
1584 return flags;
1585 }
1586
1587 static void
1588 iwl_mvm_umac_scan_cfg_channels(struct iwl_mvm *mvm,
1589 struct ieee80211_channel **channels,
1590 int n_channels, u32 flags,
1591 struct iwl_scan_channel_cfg_umac *channel_cfg)
1592 {
1593 int i;
1594
1595 for (i = 0; i < n_channels; i++) {
1596 channel_cfg[i].flags = cpu_to_le32(flags);
1597 channel_cfg[i].channel_num = channels[i]->hw_value;
1598 if (iwl_mvm_is_scan_ext_chan_supported(mvm)) {
1599 enum nl80211_band band = channels[i]->band;
1600
1601 channel_cfg[i].v2.band =
1602 iwl_mvm_phy_band_from_nl80211(band);
1603 channel_cfg[i].v2.iter_count = 1;
1604 channel_cfg[i].v2.iter_interval = 0;
1605 } else {
1606 channel_cfg[i].v1.iter_count = 1;
1607 channel_cfg[i].v1.iter_interval = 0;
1608 }
1609 }
1610 }
1611
1612 static void
1613 iwl_mvm_umac_scan_cfg_channels_v4(struct iwl_mvm *mvm,
1614 struct ieee80211_channel **channels,
1615 struct iwl_scan_channel_params_v4 *cp,
1616 int n_channels, u32 flags,
1617 enum nl80211_iftype vif_type)
1618 {
1619 u8 *bitmap = cp->adwell_ch_override_bitmap;
1620 size_t bitmap_n_entries = ARRAY_SIZE(cp->adwell_ch_override_bitmap);
1621 int i;
1622
1623 for (i = 0; i < n_channels; i++) {
1624 enum nl80211_band band = channels[i]->band;
1625 struct iwl_scan_channel_cfg_umac *cfg =
1626 &cp->channel_config[i];
1627
1628 cfg->flags = cpu_to_le32(flags);
1629 cfg->channel_num = channels[i]->hw_value;
1630 cfg->v2.band = iwl_mvm_phy_band_from_nl80211(band);
1631 cfg->v2.iter_count = 1;
1632 cfg->v2.iter_interval = 0;
1633
1634 iwl_mvm_scan_ch_add_n_aps_override(vif_type,
1635 cfg->channel_num,
1636 cfg->v2.band, bitmap,
1637 bitmap_n_entries);
1638 }
1639 }
1640
1641 static void
1642 iwl_mvm_umac_scan_cfg_channels_v7(struct iwl_mvm *mvm,
1643 struct ieee80211_channel **channels,
1644 struct iwl_scan_channel_params_v7 *cp,
1645 int n_channels, u32 flags,
1646 enum nl80211_iftype vif_type, u32 version)
1647 {
1648 int i;
1649
1650 for (i = 0; i < n_channels; i++) {
1651 enum nl80211_band band = channels[i]->band;
1652 struct iwl_scan_channel_cfg_umac *cfg = &cp->channel_config[i];
1653 u32 n_aps_flag =
1654 iwl_mvm_scan_ch_n_aps_flag(vif_type,
1655 channels[i]->hw_value);
1656 u8 iwl_band = iwl_mvm_phy_band_from_nl80211(band);
1657
1658 cfg->flags = cpu_to_le32(flags | n_aps_flag);
1659 cfg->channel_num = channels[i]->hw_value;
1660 if (cfg80211_channel_is_psc(channels[i]))
1661 cfg->flags = 0;
1662
1663 if (band == NL80211_BAND_6GHZ) {
1664 /* 6 GHz channels should only appear in a scan request
1665 * that has scan_6ghz set. The only exception is MLO
1666 * scan, which has to be passive.
1667 */
1668 WARN_ON_ONCE(cfg->flags != 0);
1669 cfg->flags =
1670 cpu_to_le32(IWL_UHB_CHAN_CFG_FLAG_FORCE_PASSIVE);
1671 }
1672
1673 cfg->v2.iter_count = 1;
1674 cfg->v2.iter_interval = 0;
1675 if (version < 17)
1676 cfg->v2.band = iwl_band;
1677 else
1678 cfg->flags |= cpu_to_le32((iwl_band <<
1679 IWL_CHAN_CFG_FLAGS_BAND_POS));
1680 }
1681 }
1682
1683 static void
1684 iwl_mvm_umac_scan_fill_6g_chan_list(struct iwl_mvm *mvm,
1685 struct iwl_mvm_scan_params *params,
1686 struct iwl_scan_probe_params_v4 *pp)
1687 {
1688 int j, idex_s = 0, idex_b = 0;
1689 struct cfg80211_scan_6ghz_params *scan_6ghz_params =
1690 params->scan_6ghz_params;
1691 bool hidden_supported = fw_has_capa(&mvm->fw->ucode_capa,
1692 IWL_UCODE_TLV_CAPA_HIDDEN_6GHZ_SCAN);
1693
1694 for (j = 0; j < params->n_ssids && idex_s < SCAN_SHORT_SSID_MAX_SIZE;
1695 j++) {
1696 if (!params->ssids[j].ssid_len)
1697 continue;
1698
1699 pp->short_ssid[idex_s] =
1700 cpu_to_le32(~crc32_le(~0, params->ssids[j].ssid,
1701 params->ssids[j].ssid_len));
1702
1703 if (hidden_supported) {
1704 pp->direct_scan[idex_s].id = WLAN_EID_SSID;
1705 pp->direct_scan[idex_s].len = params->ssids[j].ssid_len;
1706 memcpy(pp->direct_scan[idex_s].ssid, params->ssids[j].ssid,
1707 params->ssids[j].ssid_len);
1708 }
1709 idex_s++;
1710 }
1711
1712 /*
1713 * Populate the arrays of the short SSIDs and the BSSIDs using the 6GHz
1714 * collocated parameters. This might not be optimal, as this processing
1715 * does not (yet) correspond to the actual channels, so it is possible
1716 * that some entries would be left out.
1717 *
1718 * TODO: improve this logic.
1719 */
1720 for (j = 0; j < params->n_6ghz_params; j++) {
1721 int k;
1722
1723 /* First, try to place the short SSID */
1724 if (scan_6ghz_params[j].short_ssid_valid) {
1725 for (k = 0; k < idex_s; k++) {
1726 if (pp->short_ssid[k] ==
1727 cpu_to_le32(scan_6ghz_params[j].short_ssid))
1728 break;
1729 }
1730
1731 if (k == idex_s && idex_s < SCAN_SHORT_SSID_MAX_SIZE) {
1732 pp->short_ssid[idex_s++] =
1733 cpu_to_le32(scan_6ghz_params[j].short_ssid);
1734 }
1735 }
1736
1737 /* try to place BSSID for the same entry */
1738 for (k = 0; k < idex_b; k++) {
1739 if (!memcmp(&pp->bssid_array[k],
1740 scan_6ghz_params[j].bssid, ETH_ALEN))
1741 break;
1742 }
1743
1744 if (k == idex_b && idex_b < SCAN_BSSID_MAX_SIZE &&
1745 !WARN_ONCE(!is_valid_ether_addr(scan_6ghz_params[j].bssid),
1746 "scan: invalid BSSID at index %u, index_b=%u\n",
1747 j, idex_b)) {
1748 memcpy(&pp->bssid_array[idex_b++],
1749 scan_6ghz_params[j].bssid, ETH_ALEN);
1750 }
1751 }
1752
1753 pp->short_ssid_num = idex_s;
1754 pp->bssid_num = idex_b;
1755 }
1756
1757 /* TODO: this function can be merged with iwl_mvm_scan_umac_fill_ch_p_v7 */
1758 static u32
1759 iwl_mvm_umac_scan_cfg_channels_v7_6g(struct iwl_mvm *mvm,
1760 struct iwl_mvm_scan_params *params,
1761 u32 n_channels,
1762 struct iwl_scan_probe_params_v4 *pp,
1763 struct iwl_scan_channel_params_v7 *cp,
1764 enum nl80211_iftype vif_type,
1765 u32 version)
1766 {
1767 int i;
1768 struct cfg80211_scan_6ghz_params *scan_6ghz_params =
1769 params->scan_6ghz_params;
1770 u32 ch_cnt;
1771
1772 for (i = 0, ch_cnt = 0; i < params->n_channels; i++) {
1773 struct iwl_scan_channel_cfg_umac *cfg =
1774 &cp->channel_config[ch_cnt];
1775
1776 u32 s_ssid_bitmap = 0, bssid_bitmap = 0, flags = 0;
1777 u8 k, n_s_ssids = 0, n_bssids = 0;
1778 u8 max_s_ssids, max_bssids;
1779 bool force_passive = false, found = false, allow_passive = true,
1780 unsolicited_probe_on_chan = false, psc_no_listen = false;
1781 s8 psd_20 = IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED;
1782
1783 /*
1784 * Avoid performing passive scan on non PSC channels unless the
1785 * scan is specifically a passive scan, i.e., no SSIDs
1786 * configured in the scan command.
1787 */
1788 if (!cfg80211_channel_is_psc(params->channels[i]) &&
1789 !params->n_6ghz_params && params->n_ssids)
1790 continue;
1791
1792 cfg->channel_num = params->channels[i]->hw_value;
1793 if (version < 17)
1794 cfg->v2.band = PHY_BAND_6;
1795 else
1796 cfg->flags |= cpu_to_le32(PHY_BAND_6 <<
1797 IWL_CHAN_CFG_FLAGS_BAND_POS);
1798
1799 cfg->v5.iter_count = 1;
1800 cfg->v5.iter_interval = 0;
1801
1802 for (u32 j = 0; j < params->n_6ghz_params; j++) {
1803 s8 tmp_psd_20;
1804
1805 if (!(scan_6ghz_params[j].channel_idx == i))
1806 continue;
1807
1808 unsolicited_probe_on_chan |=
1809 scan_6ghz_params[j].unsolicited_probe;
1810
1811 /* Use the highest PSD value allowed as advertised by
1812 * APs for this channel
1813 */
1814 tmp_psd_20 = scan_6ghz_params[j].psd_20;
1815 if (tmp_psd_20 !=
1816 IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED &&
1817 (psd_20 ==
1818 IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED ||
1819 psd_20 < tmp_psd_20))
1820 psd_20 = tmp_psd_20;
1821
1822 psc_no_listen |= scan_6ghz_params[j].psc_no_listen;
1823 }
1824
1825 /*
1826 * In the following cases apply passive scan:
1827 * 1. Non fragmented scan:
1828 * - PSC channel with NO_LISTEN_FLAG on should be treated
1829 * like non PSC channel
1830 * - Non PSC channel with more than 3 short SSIDs or more
1831 * than 9 BSSIDs.
1832 * - Non PSC Channel with unsolicited probe response and
1833 * more than 2 short SSIDs or more than 6 BSSIDs.
1834 * - PSC channel with more than 2 short SSIDs or more than
1835 * 6 BSSIDs.
1836 * 3. Fragmented scan:
1837 * - PSC channel with more than 1 SSID or 3 BSSIDs.
1838 * - Non PSC channel with more than 2 SSIDs or 6 BSSIDs.
1839 * - Non PSC channel with unsolicited probe response and
1840 * more than 1 SSID or more than 3 BSSIDs.
1841 */
1842 if (!iwl_mvm_is_scan_fragmented(params->type)) {
1843 if (!cfg80211_channel_is_psc(params->channels[i]) ||
1844 psc_no_listen) {
1845 if (unsolicited_probe_on_chan) {
1846 max_s_ssids = 2;
1847 max_bssids = 6;
1848 } else {
1849 max_s_ssids = 3;
1850 max_bssids = 9;
1851 }
1852 } else {
1853 max_s_ssids = 2;
1854 max_bssids = 6;
1855 }
1856 } else if (cfg80211_channel_is_psc(params->channels[i])) {
1857 max_s_ssids = 1;
1858 max_bssids = 3;
1859 } else {
1860 if (unsolicited_probe_on_chan) {
1861 max_s_ssids = 1;
1862 max_bssids = 3;
1863 } else {
1864 max_s_ssids = 2;
1865 max_bssids = 6;
1866 }
1867 }
1868
1869 /*
1870 * The optimize the scan time, i.e., reduce the scan dwell time
1871 * on each channel, the below logic tries to set 3 direct BSSID
1872 * probe requests for each broadcast probe request with a short
1873 * SSID.
1874 * TODO: improve this logic
1875 */
1876 for (u32 j = 0; j < params->n_6ghz_params; j++) {
1877 if (!(scan_6ghz_params[j].channel_idx == i))
1878 continue;
1879
1880 found = false;
1881
1882 for (k = 0;
1883 k < pp->short_ssid_num && n_s_ssids < max_s_ssids;
1884 k++) {
1885 if (!scan_6ghz_params[j].unsolicited_probe &&
1886 le32_to_cpu(pp->short_ssid[k]) ==
1887 scan_6ghz_params[j].short_ssid) {
1888 /* Relevant short SSID bit set */
1889 if (s_ssid_bitmap & BIT(k)) {
1890 found = true;
1891 break;
1892 }
1893
1894 /*
1895 * Prefer creating BSSID entries unless
1896 * the short SSID probe can be done in
1897 * the same channel dwell iteration.
1898 *
1899 * We also need to create a short SSID
1900 * entry for any hidden AP.
1901 */
1902 if (3 * n_s_ssids > n_bssids &&
1903 !pp->direct_scan[k].len)
1904 break;
1905
1906 /* Hidden AP, cannot do passive scan */
1907 if (pp->direct_scan[k].len)
1908 allow_passive = false;
1909
1910 s_ssid_bitmap |= BIT(k);
1911 n_s_ssids++;
1912 found = true;
1913 break;
1914 }
1915 }
1916
1917 if (found)
1918 continue;
1919
1920 for (k = 0; k < pp->bssid_num; k++) {
1921 if (!memcmp(&pp->bssid_array[k],
1922 scan_6ghz_params[j].bssid,
1923 ETH_ALEN)) {
1924 if (!(bssid_bitmap & BIT(k))) {
1925 if (n_bssids < max_bssids) {
1926 bssid_bitmap |= BIT(k);
1927 n_bssids++;
1928 } else {
1929 force_passive = TRUE;
1930 }
1931 }
1932 break;
1933 }
1934 }
1935 }
1936
1937 if (cfg80211_channel_is_psc(params->channels[i]) &&
1938 psc_no_listen)
1939 flags |= IWL_UHB_CHAN_CFG_FLAG_PSC_CHAN_NO_LISTEN;
1940
1941 if (unsolicited_probe_on_chan)
1942 flags |= IWL_UHB_CHAN_CFG_FLAG_UNSOLICITED_PROBE_RES;
1943
1944 if ((allow_passive && force_passive) ||
1945 (!(bssid_bitmap | s_ssid_bitmap) &&
1946 !cfg80211_channel_is_psc(params->channels[i])))
1947 flags |= IWL_UHB_CHAN_CFG_FLAG_FORCE_PASSIVE;
1948 else
1949 flags |= bssid_bitmap | (s_ssid_bitmap << 16);
1950
1951 cfg->flags |= cpu_to_le32(flags);
1952 if (version >= 17)
1953 cfg->v5.psd_20 = psd_20;
1954
1955 ch_cnt++;
1956 }
1957
1958 if (params->n_channels > ch_cnt)
1959 IWL_DEBUG_SCAN(mvm,
1960 "6GHz: reducing number channels: (%u->%u)\n",
1961 params->n_channels, ch_cnt);
1962
1963 return ch_cnt;
1964 }
1965
1966 static u8 iwl_mvm_scan_umac_chan_flags_v2(struct iwl_mvm *mvm,
1967 struct iwl_mvm_scan_params *params,
1968 struct ieee80211_vif *vif)
1969 {
1970 u8 flags = 0;
1971
1972 flags |= IWL_SCAN_CHANNEL_FLAG_ENABLE_CHAN_ORDER;
1973
1974 if (iwl_mvm_scan_use_ebs(mvm, vif))
1975 flags |= IWL_SCAN_CHANNEL_FLAG_EBS |
1976 IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
1977 IWL_SCAN_CHANNEL_FLAG_CACHE_ADD;
1978
1979 /* set fragmented ebs for fragmented scan on HB channels */
1980 if ((!iwl_mvm_is_cdb_supported(mvm) &&
1981 iwl_mvm_is_scan_fragmented(params->type)) ||
1982 (iwl_mvm_is_cdb_supported(mvm) &&
1983 iwl_mvm_is_scan_fragmented(params->hb_type)))
1984 flags |= IWL_SCAN_CHANNEL_FLAG_EBS_FRAG;
1985
1986 /*
1987 * force EBS in case the scan is a fragmented and there is a need to take P2P
1988 * GO operation into consideration during scan operation.
1989 */
1990 if ((!iwl_mvm_is_cdb_supported(mvm) &&
1991 iwl_mvm_is_scan_fragmented(params->type) && params->respect_p2p_go) ||
1992 (iwl_mvm_is_cdb_supported(mvm) &&
1993 iwl_mvm_is_scan_fragmented(params->hb_type) &&
1994 params->respect_p2p_go_hb)) {
1995 IWL_DEBUG_SCAN(mvm, "Respect P2P GO. Force EBS\n");
1996 flags |= IWL_SCAN_CHANNEL_FLAG_FORCE_EBS;
1997 }
1998
1999 return flags;
2000 }
2001
2002 static void iwl_mvm_scan_6ghz_passive_scan(struct iwl_mvm *mvm,
2003 struct iwl_mvm_scan_params *params,
2004 struct ieee80211_vif *vif)
2005 {
2006 struct ieee80211_supported_band *sband =
2007 &mvm->nvm_data->bands[NL80211_BAND_6GHZ];
2008 u32 n_disabled, i;
2009
2010 params->enable_6ghz_passive = false;
2011
2012 if (params->scan_6ghz)
2013 return;
2014
2015 if (!fw_has_capa(&mvm->fw->ucode_capa,
2016 IWL_UCODE_TLV_CAPA_PASSIVE_6GHZ_SCAN)) {
2017 IWL_DEBUG_SCAN(mvm,
2018 "6GHz passive scan: Not supported by FW\n");
2019 return;
2020 }
2021
2022 /* 6GHz passive scan allowed only on station interface */
2023 if (vif->type != NL80211_IFTYPE_STATION) {
2024 IWL_DEBUG_SCAN(mvm,
2025 "6GHz passive scan: not station interface\n");
2026 return;
2027 }
2028
2029 /*
2030 * 6GHz passive scan is allowed in a defined time interval following HW
2031 * reset or resume flow, or while not associated and a large interval
2032 * has passed since the last 6GHz passive scan.
2033 */
2034 if ((vif->cfg.assoc ||
2035 time_after(mvm->last_6ghz_passive_scan_jiffies +
2036 (IWL_MVM_6GHZ_PASSIVE_SCAN_TIMEOUT * HZ), jiffies)) &&
2037 (time_before(mvm->last_reset_or_resume_time_jiffies +
2038 (IWL_MVM_6GHZ_PASSIVE_SCAN_ASSOC_TIMEOUT * HZ),
2039 jiffies))) {
2040 IWL_DEBUG_SCAN(mvm, "6GHz passive scan: %s\n",
2041 vif->cfg.assoc ? "associated" :
2042 "timeout did not expire");
2043 return;
2044 }
2045
2046 /* not enough channels in the regular scan request */
2047 if (params->n_channels < IWL_MVM_6GHZ_PASSIVE_SCAN_MIN_CHANS) {
2048 IWL_DEBUG_SCAN(mvm,
2049 "6GHz passive scan: not enough channels\n");
2050 return;
2051 }
2052
2053 for (i = 0; i < params->n_ssids; i++) {
2054 if (!params->ssids[i].ssid_len)
2055 break;
2056 }
2057
2058 /* not a wildcard scan, so cannot enable passive 6GHz scan */
2059 if (i == params->n_ssids) {
2060 IWL_DEBUG_SCAN(mvm,
2061 "6GHz passive scan: no wildcard SSID\n");
2062 return;
2063 }
2064
2065 if (!sband || !sband->n_channels) {
2066 IWL_DEBUG_SCAN(mvm,
2067 "6GHz passive scan: no 6GHz channels\n");
2068 return;
2069 }
2070
2071 for (i = 0, n_disabled = 0; i < sband->n_channels; i++) {
2072 if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED))
2073 n_disabled++;
2074 }
2075
2076 /*
2077 * Not all the 6GHz channels are disabled, so no need for 6GHz passive
2078 * scan
2079 */
2080 if (n_disabled != sband->n_channels) {
2081 IWL_DEBUG_SCAN(mvm,
2082 "6GHz passive scan: 6GHz channels enabled\n");
2083 return;
2084 }
2085
2086 /* all conditions to enable 6ghz passive scan are satisfied */
2087 IWL_DEBUG_SCAN(mvm, "6GHz passive scan: can be enabled\n");
2088 params->enable_6ghz_passive = true;
2089 }
2090
2091 static u16 iwl_mvm_scan_umac_flags_v2(struct iwl_mvm *mvm,
2092 struct iwl_mvm_scan_params *params,
2093 struct ieee80211_vif *vif,
2094 int type)
2095 {
2096 u16 flags = 0;
2097
2098 /*
2099 * If no direct SSIDs are provided perform a passive scan. Otherwise,
2100 * if there is a single SSID which is not the broadcast SSID, assume
2101 * that the scan is intended for roaming purposes and thus enable Rx on
2102 * all chains to improve chances of hearing the beacons/probe responses.
2103 */
2104 if (params->n_ssids == 0)
2105 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_FORCE_PASSIVE;
2106 else if (params->n_ssids == 1 && params->ssids[0].ssid_len)
2107 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_USE_ALL_RX_CHAINS;
2108
2109 if (iwl_mvm_is_scan_fragmented(params->type))
2110 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_FRAGMENTED_LMAC1;
2111
2112 if (iwl_mvm_is_scan_fragmented(params->hb_type))
2113 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_FRAGMENTED_LMAC2;
2114
2115 if (params->pass_all)
2116 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_PASS_ALL;
2117 else
2118 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_MATCH;
2119
2120 if (!iwl_mvm_is_regular_scan(params))
2121 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_PERIODIC;
2122
2123 if (params->iter_notif ||
2124 mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_ENABLED)
2125 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_NTFY_ITER_COMPLETE;
2126
2127 if (IWL_MVM_ADWELL_ENABLE)
2128 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_ADAPTIVE_DWELL;
2129
2130 if (type == IWL_MVM_SCAN_SCHED || type == IWL_MVM_SCAN_NETDETECT)
2131 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_PREEMPTIVE;
2132
2133 if ((type == IWL_MVM_SCAN_SCHED || type == IWL_MVM_SCAN_NETDETECT) &&
2134 params->flags & NL80211_SCAN_FLAG_COLOCATED_6GHZ)
2135 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_TRIGGER_UHB_SCAN;
2136
2137 if (params->enable_6ghz_passive)
2138 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_6GHZ_PASSIVE_SCAN;
2139
2140 if (iwl_mvm_is_oce_supported(mvm) &&
2141 (params->flags & (NL80211_SCAN_FLAG_ACCEPT_BCAST_PROBE_RESP |
2142 NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE |
2143 NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME)))
2144 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_OCE;
2145
2146 return flags;
2147 }
2148
2149 static u8 iwl_mvm_scan_umac_flags2(struct iwl_mvm *mvm,
2150 struct iwl_mvm_scan_params *params,
2151 struct ieee80211_vif *vif, int type,
2152 u16 gen_flags)
2153 {
2154 u8 flags = 0;
2155
2156 if (iwl_mvm_is_cdb_supported(mvm)) {
2157 if (params->respect_p2p_go)
2158 flags |= IWL_UMAC_SCAN_GEN_PARAMS_FLAGS2_RESPECT_P2P_GO_LB;
2159 if (params->respect_p2p_go_hb)
2160 flags |= IWL_UMAC_SCAN_GEN_PARAMS_FLAGS2_RESPECT_P2P_GO_HB;
2161 } else {
2162 if (params->respect_p2p_go)
2163 flags = IWL_UMAC_SCAN_GEN_PARAMS_FLAGS2_RESPECT_P2P_GO_LB |
2164 IWL_UMAC_SCAN_GEN_PARAMS_FLAGS2_RESPECT_P2P_GO_HB;
2165 }
2166
2167 if (params->scan_6ghz &&
2168 fw_has_capa(&mvm->fw->ucode_capa,
2169 IWL_UCODE_TLV_CAPA_SCAN_DONT_TOGGLE_ANT))
2170 flags |= IWL_UMAC_SCAN_GEN_PARAMS_FLAGS2_DONT_TOGGLE_ANT;
2171
2172 /* Passive and AP interface -> ACS (automatic channel selection) */
2173 if (gen_flags & IWL_UMAC_SCAN_GEN_FLAGS_V2_FORCE_PASSIVE &&
2174 ieee80211_vif_type_p2p(vif) == NL80211_IFTYPE_AP &&
2175 iwl_fw_lookup_notif_ver(mvm->fw, SCAN_GROUP, CHANNEL_SURVEY_NOTIF,
2176 0) >= 1)
2177 flags |= IWL_UMAC_SCAN_GEN_FLAGS2_COLLECT_CHANNEL_STATS;
2178
2179 return flags;
2180 }
2181
2182 static u16 iwl_mvm_scan_umac_flags(struct iwl_mvm *mvm,
2183 struct iwl_mvm_scan_params *params,
2184 struct ieee80211_vif *vif)
2185 {
2186 u16 flags = 0;
2187
2188 if (params->n_ssids == 0)
2189 flags = IWL_UMAC_SCAN_GEN_FLAGS_PASSIVE;
2190
2191 if (params->n_ssids == 1 && params->ssids[0].ssid_len != 0)
2192 flags |= IWL_UMAC_SCAN_GEN_FLAGS_PRE_CONNECT;
2193
2194 if (iwl_mvm_is_scan_fragmented(params->type))
2195 flags |= IWL_UMAC_SCAN_GEN_FLAGS_FRAGMENTED;
2196
2197 if (iwl_mvm_is_cdb_supported(mvm) &&
2198 iwl_mvm_is_scan_fragmented(params->hb_type))
2199 flags |= IWL_UMAC_SCAN_GEN_FLAGS_LMAC2_FRAGMENTED;
2200
2201 if (iwl_mvm_rrm_scan_needed(mvm) &&
2202 fw_has_capa(&mvm->fw->ucode_capa,
2203 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
2204 flags |= IWL_UMAC_SCAN_GEN_FLAGS_RRM_ENABLED;
2205
2206 if (params->pass_all)
2207 flags |= IWL_UMAC_SCAN_GEN_FLAGS_PASS_ALL;
2208 else
2209 flags |= IWL_UMAC_SCAN_GEN_FLAGS_MATCH;
2210
2211 if (!iwl_mvm_is_regular_scan(params))
2212 flags |= IWL_UMAC_SCAN_GEN_FLAGS_PERIODIC;
2213
2214 if (params->iter_notif)
2215 flags |= IWL_UMAC_SCAN_GEN_FLAGS_ITER_COMPLETE;
2216
2217 #ifdef CONFIG_IWLWIFI_DEBUGFS
2218 if (mvm->scan_iter_notif_enabled)
2219 flags |= IWL_UMAC_SCAN_GEN_FLAGS_ITER_COMPLETE;
2220 #endif
2221
2222 if (mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_ENABLED)
2223 flags |= IWL_UMAC_SCAN_GEN_FLAGS_ITER_COMPLETE;
2224
2225 if (iwl_mvm_is_adaptive_dwell_supported(mvm) && IWL_MVM_ADWELL_ENABLE)
2226 flags |= IWL_UMAC_SCAN_GEN_FLAGS_ADAPTIVE_DWELL;
2227
2228 /*
2229 * Extended dwell is relevant only for low band to start with, as it is
2230 * being used for social channles only (1, 6, 11), so we can check
2231 * only scan type on low band also for CDB.
2232 */
2233 if (iwl_mvm_is_regular_scan(params) &&
2234 vif->type != NL80211_IFTYPE_P2P_DEVICE &&
2235 !iwl_mvm_is_scan_fragmented(params->type) &&
2236 !iwl_mvm_is_adaptive_dwell_supported(mvm) &&
2237 !iwl_mvm_is_oce_supported(mvm))
2238 flags |= IWL_UMAC_SCAN_GEN_FLAGS_EXTENDED_DWELL;
2239
2240 if (iwl_mvm_is_oce_supported(mvm)) {
2241 if ((params->flags &
2242 NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE))
2243 flags |= IWL_UMAC_SCAN_GEN_FLAGS_PROB_REQ_HIGH_TX_RATE;
2244 /* Since IWL_UMAC_SCAN_GEN_FLAGS_EXTENDED_DWELL and
2245 * NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION shares
2246 * the same bit, we need to make sure that we use this bit here
2247 * only when IWL_UMAC_SCAN_GEN_FLAGS_EXTENDED_DWELL cannot be
2248 * used. */
2249 if ((params->flags &
2250 NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION) &&
2251 !WARN_ON_ONCE(!iwl_mvm_is_adaptive_dwell_supported(mvm)))
2252 flags |= IWL_UMAC_SCAN_GEN_FLAGS_PROB_REQ_DEFER_SUPP;
2253 if ((params->flags & NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME))
2254 flags |= IWL_UMAC_SCAN_GEN_FLAGS_MAX_CHNL_TIME;
2255 }
2256
2257 return flags;
2258 }
2259
2260 static int
2261 iwl_mvm_fill_scan_sched_params(struct iwl_mvm_scan_params *params,
2262 struct iwl_scan_umac_schedule *schedule,
2263 __le16 *delay)
2264 {
2265 int i;
2266 if (WARN_ON(!params->n_scan_plans ||
2267 params->n_scan_plans > IWL_MAX_SCHED_SCAN_PLANS))
2268 return -EINVAL;
2269
2270 for (i = 0; i < params->n_scan_plans; i++) {
2271 struct cfg80211_sched_scan_plan *scan_plan =
2272 &params->scan_plans[i];
2273
2274 schedule[i].iter_count = scan_plan->iterations;
2275 schedule[i].interval =
2276 cpu_to_le16(scan_plan->interval);
2277 }
2278
2279 /*
2280 * If the number of iterations of the last scan plan is set to
2281 * zero, it should run infinitely. However, this is not always the case.
2282 * For example, when regular scan is requested the driver sets one scan
2283 * plan with one iteration.
2284 */
2285 if (!schedule[params->n_scan_plans - 1].iter_count)
2286 schedule[params->n_scan_plans - 1].iter_count = 0xff;
2287
2288 *delay = cpu_to_le16(params->delay);
2289
2290 return 0;
2291 }
2292
2293 static int iwl_mvm_scan_umac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2294 struct iwl_mvm_scan_params *params,
2295 int type, int uid)
2296 {
2297 struct iwl_scan_req_umac *cmd = mvm->scan_cmd;
2298 struct iwl_scan_umac_chan_param *chan_param;
2299 void *cmd_data = iwl_mvm_get_scan_req_umac_data(mvm);
2300 void *sec_part = (u8 *)cmd_data + sizeof(struct iwl_scan_channel_cfg_umac) *
2301 mvm->fw->ucode_capa.n_scan_channels;
2302 struct iwl_scan_req_umac_tail_v2 *tail_v2 =
2303 (struct iwl_scan_req_umac_tail_v2 *)sec_part;
2304 struct iwl_scan_req_umac_tail_v1 *tail_v1;
2305 struct iwl_ssid_ie *direct_scan;
2306 int ret = 0;
2307 u32 ssid_bitmap = 0;
2308 u8 channel_flags = 0;
2309 u16 gen_flags;
2310 struct iwl_mvm_vif *scan_vif = iwl_mvm_vif_from_mac80211(vif);
2311
2312 chan_param = iwl_mvm_get_scan_req_umac_channel(mvm);
2313
2314 iwl_mvm_scan_umac_dwell(mvm, cmd, params);
2315
2316 cmd->uid = cpu_to_le32(uid);
2317 gen_flags = iwl_mvm_scan_umac_flags(mvm, params, vif);
2318 cmd->general_flags = cpu_to_le16(gen_flags);
2319 if (iwl_mvm_is_adaptive_dwell_v2_supported(mvm)) {
2320 if (gen_flags & IWL_UMAC_SCAN_GEN_FLAGS_FRAGMENTED)
2321 cmd->v8.num_of_fragments[SCAN_LB_LMAC_IDX] =
2322 IWL_SCAN_NUM_OF_FRAGS;
2323 if (gen_flags & IWL_UMAC_SCAN_GEN_FLAGS_LMAC2_FRAGMENTED)
2324 cmd->v8.num_of_fragments[SCAN_HB_LMAC_IDX] =
2325 IWL_SCAN_NUM_OF_FRAGS;
2326
2327 cmd->v8.general_flags2 =
2328 IWL_UMAC_SCAN_GEN_FLAGS2_ALLOW_CHNL_REORDER;
2329 }
2330
2331 cmd->scan_start_mac_id = scan_vif->id;
2332
2333 if (type == IWL_MVM_SCAN_SCHED || type == IWL_MVM_SCAN_NETDETECT)
2334 cmd->flags = cpu_to_le32(IWL_UMAC_SCAN_FLAG_PREEMPTIVE);
2335
2336 if (iwl_mvm_scan_use_ebs(mvm, vif)) {
2337 channel_flags = IWL_SCAN_CHANNEL_FLAG_EBS |
2338 IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
2339 IWL_SCAN_CHANNEL_FLAG_CACHE_ADD;
2340
2341 /* set fragmented ebs for fragmented scan on HB channels */
2342 if (iwl_mvm_is_frag_ebs_supported(mvm)) {
2343 if (gen_flags &
2344 IWL_UMAC_SCAN_GEN_FLAGS_LMAC2_FRAGMENTED ||
2345 (!iwl_mvm_is_cdb_supported(mvm) &&
2346 gen_flags & IWL_UMAC_SCAN_GEN_FLAGS_FRAGMENTED))
2347 channel_flags |= IWL_SCAN_CHANNEL_FLAG_EBS_FRAG;
2348 }
2349 }
2350
2351 chan_param->flags = channel_flags;
2352 chan_param->count = params->n_channels;
2353
2354 ret = iwl_mvm_fill_scan_sched_params(params, tail_v2->schedule,
2355 &tail_v2->delay);
2356 if (ret)
2357 return ret;
2358
2359 if (iwl_mvm_is_scan_ext_chan_supported(mvm)) {
2360 tail_v2->preq = params->preq;
2361 direct_scan = tail_v2->direct_scan;
2362 } else {
2363 tail_v1 = (struct iwl_scan_req_umac_tail_v1 *)sec_part;
2364 iwl_mvm_scan_set_legacy_probe_req(&tail_v1->preq,
2365 &params->preq);
2366 direct_scan = tail_v1->direct_scan;
2367 }
2368 iwl_scan_build_ssids(params, direct_scan, &ssid_bitmap);
2369 iwl_mvm_umac_scan_cfg_channels(mvm, params->channels,
2370 params->n_channels, ssid_bitmap,
2371 cmd_data);
2372 return 0;
2373 }
2374
2375 static void
2376 iwl_mvm_scan_umac_fill_general_p_v12(struct iwl_mvm *mvm,
2377 struct iwl_mvm_scan_params *params,
2378 struct ieee80211_vif *vif,
2379 struct iwl_scan_general_params_v11 *gp,
2380 u16 gen_flags, u8 gen_flags2,
2381 u32 version)
2382 {
2383 struct iwl_mvm_vif *scan_vif = iwl_mvm_vif_from_mac80211(vif);
2384
2385 iwl_mvm_scan_umac_dwell_v11(mvm, gp, params);
2386
2387 IWL_DEBUG_SCAN(mvm, "General: flags=0x%x, flags2=0x%x\n",
2388 gen_flags, gen_flags2);
2389
2390 gp->flags = cpu_to_le16(gen_flags);
2391 gp->flags2 = gen_flags2;
2392
2393 if (gen_flags & IWL_UMAC_SCAN_GEN_FLAGS_V2_FRAGMENTED_LMAC1)
2394 gp->num_of_fragments[SCAN_LB_LMAC_IDX] = IWL_SCAN_NUM_OF_FRAGS;
2395 if (gen_flags & IWL_UMAC_SCAN_GEN_FLAGS_V2_FRAGMENTED_LMAC2)
2396 gp->num_of_fragments[SCAN_HB_LMAC_IDX] = IWL_SCAN_NUM_OF_FRAGS;
2397
2398 mvm->scan_link_id = 0;
2399
2400 if (version < 16) {
2401 gp->scan_start_mac_or_link_id = scan_vif->id;
2402 } else {
2403 struct iwl_mvm_vif_link_info *link_info =
2404 scan_vif->link[params->tsf_report_link_id];
2405
2406 mvm->scan_link_id = params->tsf_report_link_id;
2407 if (!WARN_ON(!link_info))
2408 gp->scan_start_mac_or_link_id = link_info->fw_link_id;
2409 }
2410 }
2411
2412 static void
2413 iwl_mvm_scan_umac_fill_probe_p_v3(struct iwl_mvm_scan_params *params,
2414 struct iwl_scan_probe_params_v3 *pp)
2415 {
2416 pp->preq = params->preq;
2417 pp->ssid_num = params->n_ssids;
2418 iwl_scan_build_ssids(params, pp->direct_scan, NULL);
2419 }
2420
2421 static void
2422 iwl_mvm_scan_umac_fill_probe_p_v4(struct iwl_mvm_scan_params *params,
2423 struct iwl_scan_probe_params_v4 *pp,
2424 u32 *bitmap_ssid)
2425 {
2426 pp->preq = params->preq;
2427 iwl_scan_build_ssids(params, pp->direct_scan, bitmap_ssid);
2428 }
2429
2430 static void
2431 iwl_mvm_scan_umac_fill_ch_p_v4(struct iwl_mvm *mvm,
2432 struct iwl_mvm_scan_params *params,
2433 struct ieee80211_vif *vif,
2434 struct iwl_scan_channel_params_v4 *cp,
2435 u32 channel_cfg_flags)
2436 {
2437 cp->flags = iwl_mvm_scan_umac_chan_flags_v2(mvm, params, vif);
2438 cp->count = params->n_channels;
2439 cp->num_of_aps_override = IWL_SCAN_ADWELL_N_APS_GO_FRIENDLY;
2440
2441 iwl_mvm_umac_scan_cfg_channels_v4(mvm, params->channels, cp,
2442 params->n_channels,
2443 channel_cfg_flags,
2444 vif->type);
2445 }
2446
2447 static void
2448 iwl_mvm_scan_umac_fill_ch_p_v7(struct iwl_mvm *mvm,
2449 struct iwl_mvm_scan_params *params,
2450 struct ieee80211_vif *vif,
2451 struct iwl_scan_channel_params_v7 *cp,
2452 u32 channel_cfg_flags,
2453 u32 version)
2454 {
2455 cp->flags = iwl_mvm_scan_umac_chan_flags_v2(mvm, params, vif);
2456 cp->count = params->n_channels;
2457 cp->n_aps_override[0] = IWL_SCAN_ADWELL_N_APS_GO_FRIENDLY;
2458 cp->n_aps_override[1] = IWL_SCAN_ADWELL_N_APS_SOCIAL_CHS;
2459
2460 iwl_mvm_umac_scan_cfg_channels_v7(mvm, params->channels, cp,
2461 params->n_channels,
2462 channel_cfg_flags,
2463 vif->type, version);
2464
2465 if (params->enable_6ghz_passive) {
2466 struct ieee80211_supported_band *sband =
2467 &mvm->nvm_data->bands[NL80211_BAND_6GHZ];
2468 u32 i;
2469
2470 for (i = 0; i < sband->n_channels; i++) {
2471 struct ieee80211_channel *channel =
2472 &sband->channels[i];
2473
2474 struct iwl_scan_channel_cfg_umac *cfg =
2475 &cp->channel_config[cp->count];
2476
2477 if (!cfg80211_channel_is_psc(channel))
2478 continue;
2479
2480 cfg->channel_num = channel->hw_value;
2481 cfg->v5.iter_count = 1;
2482 cfg->v5.iter_interval = 0;
2483
2484 if (version < 17) {
2485 cfg->flags = 0;
2486 cfg->v2.band = PHY_BAND_6;
2487 } else {
2488 cfg->flags = cpu_to_le32(PHY_BAND_6 <<
2489 IWL_CHAN_CFG_FLAGS_BAND_POS);
2490 cfg->v5.psd_20 =
2491 IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED;
2492 }
2493 cp->count++;
2494 }
2495 }
2496 }
2497
2498 static int iwl_mvm_scan_umac_v12(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2499 struct iwl_mvm_scan_params *params, int type,
2500 int uid)
2501 {
2502 struct iwl_scan_req_umac_v12 *cmd = mvm->scan_cmd;
2503 struct iwl_scan_req_params_v12 *scan_p = &cmd->scan_params;
2504 int ret;
2505 u16 gen_flags;
2506
2507 cmd->ooc_priority = cpu_to_le32(iwl_mvm_scan_umac_ooc_priority(type));
2508 cmd->uid = cpu_to_le32(uid);
2509
2510 gen_flags = iwl_mvm_scan_umac_flags_v2(mvm, params, vif, type);
2511 iwl_mvm_scan_umac_fill_general_p_v12(mvm, params, vif,
2512 &scan_p->general_params,
2513 gen_flags, 0, 12);
2514
2515 ret = iwl_mvm_fill_scan_sched_params(params,
2516 scan_p->periodic_params.schedule,
2517 &scan_p->periodic_params.delay);
2518 if (ret)
2519 return ret;
2520
2521 iwl_mvm_scan_umac_fill_probe_p_v3(params, &scan_p->probe_params);
2522 iwl_mvm_scan_umac_fill_ch_p_v4(mvm, params, vif,
2523 &scan_p->channel_params, 0);
2524
2525 return 0;
2526 }
2527
2528 static int iwl_mvm_scan_umac_v14_and_above(struct iwl_mvm *mvm,
2529 struct ieee80211_vif *vif,
2530 struct iwl_mvm_scan_params *params,
2531 int type, int uid, u32 version)
2532 {
2533 struct iwl_scan_req_umac_v17 *cmd = mvm->scan_cmd;
2534 struct iwl_scan_req_params_v17 *scan_p = &cmd->scan_params;
2535 struct iwl_scan_channel_params_v7 *cp = &scan_p->channel_params;
2536 struct iwl_scan_probe_params_v4 *pb = &scan_p->probe_params;
2537 int ret;
2538 u16 gen_flags;
2539 u8 gen_flags2;
2540 u32 bitmap_ssid = 0;
2541
2542 cmd->ooc_priority = cpu_to_le32(iwl_mvm_scan_umac_ooc_priority(type));
2543 cmd->uid = cpu_to_le32(uid);
2544
2545 gen_flags = iwl_mvm_scan_umac_flags_v2(mvm, params, vif, type);
2546
2547 if (version >= 15)
2548 gen_flags2 = iwl_mvm_scan_umac_flags2(mvm, params, vif, type,
2549 gen_flags);
2550 else
2551 gen_flags2 = 0;
2552
2553 iwl_mvm_scan_umac_fill_general_p_v12(mvm, params, vif,
2554 &scan_p->general_params,
2555 gen_flags, gen_flags2, version);
2556
2557 ret = iwl_mvm_fill_scan_sched_params(params,
2558 scan_p->periodic_params.schedule,
2559 &scan_p->periodic_params.delay);
2560 if (ret)
2561 return ret;
2562
2563 if (!params->scan_6ghz) {
2564 iwl_mvm_scan_umac_fill_probe_p_v4(params,
2565 &scan_p->probe_params,
2566 &bitmap_ssid);
2567 iwl_mvm_scan_umac_fill_ch_p_v7(mvm, params, vif,
2568 &scan_p->channel_params,
2569 bitmap_ssid,
2570 version);
2571 return 0;
2572 } else {
2573 pb->preq = params->preq;
2574 }
2575
2576 cp->flags = iwl_mvm_scan_umac_chan_flags_v2(mvm, params, vif);
2577 cp->n_aps_override[0] = IWL_SCAN_ADWELL_N_APS_GO_FRIENDLY;
2578 cp->n_aps_override[1] = IWL_SCAN_ADWELL_N_APS_SOCIAL_CHS;
2579
2580 iwl_mvm_umac_scan_fill_6g_chan_list(mvm, params, pb);
2581
2582 cp->count = iwl_mvm_umac_scan_cfg_channels_v7_6g(mvm, params,
2583 params->n_channels,
2584 pb, cp, vif->type,
2585 version);
2586 if (!cp->count)
2587 return -EINVAL;
2588
2589 if (!params->n_ssids ||
2590 (params->n_ssids == 1 && !params->ssids[0].ssid_len))
2591 cp->flags |= IWL_SCAN_CHANNEL_FLAG_6G_PSC_NO_FILTER;
2592
2593 return 0;
2594 }
2595
2596 static int iwl_mvm_scan_umac_v14(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2597 struct iwl_mvm_scan_params *params, int type,
2598 int uid)
2599 {
2600 return iwl_mvm_scan_umac_v14_and_above(mvm, vif, params, type, uid, 14);
2601 }
2602
2603 static int iwl_mvm_scan_umac_v15(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2604 struct iwl_mvm_scan_params *params, int type,
2605 int uid)
2606 {
2607 return iwl_mvm_scan_umac_v14_and_above(mvm, vif, params, type, uid, 15);
2608 }
2609
2610 static int iwl_mvm_scan_umac_v16(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2611 struct iwl_mvm_scan_params *params, int type,
2612 int uid)
2613 {
2614 return iwl_mvm_scan_umac_v14_and_above(mvm, vif, params, type, uid, 16);
2615 }
2616
2617 static int iwl_mvm_scan_umac_v17(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2618 struct iwl_mvm_scan_params *params, int type,
2619 int uid)
2620 {
2621 return iwl_mvm_scan_umac_v14_and_above(mvm, vif, params, type, uid, 17);
2622 }
2623
2624 static int iwl_mvm_num_scans(struct iwl_mvm *mvm)
2625 {
2626 return hweight32(mvm->scan_status & IWL_MVM_SCAN_MASK);
2627 }
2628
2629 static int iwl_mvm_check_running_scans(struct iwl_mvm *mvm, int type)
2630 {
2631 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2632 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2633
2634 /* This looks a bit arbitrary, but the idea is that if we run
2635 * out of possible simultaneous scans and the userspace is
2636 * trying to run a scan type that is already running, we
2637 * return -EBUSY. But if the userspace wants to start a
2638 * different type of scan, we stop the opposite type to make
2639 * space for the new request. The reason is backwards
2640 * compatibility with old wpa_supplicant that wouldn't stop a
2641 * scheduled scan before starting a normal scan.
2642 */
2643
2644 /* FW supports only a single periodic scan */
2645 if ((type == IWL_MVM_SCAN_SCHED || type == IWL_MVM_SCAN_NETDETECT) &&
2646 mvm->scan_status & (IWL_MVM_SCAN_SCHED | IWL_MVM_SCAN_NETDETECT))
2647 return -EBUSY;
2648
2649 if (iwl_mvm_num_scans(mvm) < mvm->max_scans)
2650 return 0;
2651
2652 /* Use a switch, even though this is a bitmask, so that more
2653 * than one bits set will fall in default and we will warn.
2654 */
2655 switch (type) {
2656 case IWL_MVM_SCAN_REGULAR:
2657 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR_MASK)
2658 return -EBUSY;
2659 return iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
2660 case IWL_MVM_SCAN_SCHED:
2661 if (mvm->scan_status & IWL_MVM_SCAN_SCHED_MASK)
2662 return -EBUSY;
2663 return iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
2664 case IWL_MVM_SCAN_NETDETECT:
2665 /* For non-unified images, there's no need to stop
2666 * anything for net-detect since the firmware is
2667 * restarted anyway. This way, any sched scans that
2668 * were running will be restarted when we resume.
2669 */
2670 if (!unified_image)
2671 return 0;
2672
2673 /* If this is a unified image and we ran out of scans,
2674 * we need to stop something. Prefer stopping regular
2675 * scans, because the results are useless at this
2676 * point, and we should be able to keep running
2677 * another scheduled scan while suspended.
2678 */
2679 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR_MASK)
2680 return iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR,
2681 true);
2682 if (mvm->scan_status & IWL_MVM_SCAN_SCHED_MASK)
2683 return iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED,
2684 true);
2685 /* Something is wrong if no scan was running but we
2686 * ran out of scans.
2687 */
2688 fallthrough;
2689 default:
2690 WARN_ON(1);
2691 break;
2692 }
2693
2694 return -EIO;
2695 }
2696
2697 #define SCAN_TIMEOUT 30000
2698
2699 void iwl_mvm_scan_timeout_wk(struct work_struct *work)
2700 {
2701 struct delayed_work *delayed_work = to_delayed_work(work);
2702 struct iwl_mvm *mvm = container_of(delayed_work, struct iwl_mvm,
2703 scan_timeout_dwork);
2704
2705 IWL_ERR(mvm, "regular scan timed out\n");
2706
2707 iwl_force_nmi(mvm->trans);
2708 }
2709
2710 static void iwl_mvm_fill_scan_type(struct iwl_mvm *mvm,
2711 struct iwl_mvm_scan_params *params,
2712 struct ieee80211_vif *vif)
2713 {
2714 if (iwl_mvm_is_cdb_supported(mvm)) {
2715 params->type =
2716 iwl_mvm_get_scan_type_band(mvm, vif,
2717 NL80211_BAND_2GHZ);
2718 params->hb_type =
2719 iwl_mvm_get_scan_type_band(mvm, vif,
2720 NL80211_BAND_5GHZ);
2721 } else {
2722 params->type = iwl_mvm_get_scan_type(mvm, vif);
2723 }
2724 }
2725
2726 struct iwl_scan_umac_handler {
2727 u8 version;
2728 int (*handler)(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2729 struct iwl_mvm_scan_params *params, int type, int uid);
2730 };
2731
2732 #define IWL_SCAN_UMAC_HANDLER(_ver) { \
2733 .version = _ver, \
2734 .handler = iwl_mvm_scan_umac_v##_ver, \
2735 }
2736
2737 static const struct iwl_scan_umac_handler iwl_scan_umac_handlers[] = {
2738 /* set the newest version first to shorten the list traverse time */
2739 IWL_SCAN_UMAC_HANDLER(17),
2740 IWL_SCAN_UMAC_HANDLER(16),
2741 IWL_SCAN_UMAC_HANDLER(15),
2742 IWL_SCAN_UMAC_HANDLER(14),
2743 IWL_SCAN_UMAC_HANDLER(12),
2744 };
2745
2746 static void iwl_mvm_mei_scan_work(struct work_struct *wk)
2747 {
2748 struct iwl_mei_scan_filter *scan_filter =
2749 container_of(wk, struct iwl_mei_scan_filter, scan_work);
2750 struct iwl_mvm *mvm =
2751 container_of(scan_filter, struct iwl_mvm, mei_scan_filter);
2752 struct iwl_mvm_csme_conn_info *info;
2753 struct sk_buff *skb;
2754 u8 bssid[ETH_ALEN];
2755
2756 mutex_lock(&mvm->mutex);
2757 info = iwl_mvm_get_csme_conn_info(mvm);
2758 memcpy(bssid, info->conn_info.bssid, ETH_ALEN);
2759 mutex_unlock(&mvm->mutex);
2760
2761 while ((skb = skb_dequeue(&scan_filter->scan_res))) {
2762 struct ieee80211_mgmt *mgmt = (void *)skb->data;
2763
2764 if (!memcmp(mgmt->bssid, bssid, ETH_ALEN))
2765 ieee80211_rx_irqsafe(mvm->hw, skb);
2766 else
2767 kfree_skb(skb);
2768 }
2769 }
2770
2771 void iwl_mvm_mei_scan_filter_init(struct iwl_mei_scan_filter *mei_scan_filter)
2772 {
2773 skb_queue_head_init(&mei_scan_filter->scan_res);
2774 INIT_WORK(&mei_scan_filter->scan_work, iwl_mvm_mei_scan_work);
2775 }
2776
2777 /* In case CSME is connected and has link protection set, this function will
2778 * override the scan request to scan only the associated channel and only for
2779 * the associated SSID.
2780 */
2781 static void iwl_mvm_mei_limited_scan(struct iwl_mvm *mvm,
2782 struct iwl_mvm_scan_params *params)
2783 {
2784 struct iwl_mvm_csme_conn_info *info = iwl_mvm_get_csme_conn_info(mvm);
2785 struct iwl_mei_conn_info *conn_info;
2786 struct ieee80211_channel *chan;
2787 int scan_iters, i;
2788
2789 if (!info) {
2790 IWL_DEBUG_SCAN(mvm, "mei_limited_scan: no connection info\n");
2791 return;
2792 }
2793
2794 conn_info = &info->conn_info;
2795 if (!info->conn_info.lp_state || !info->conn_info.ssid_len)
2796 return;
2797
2798 if (!params->n_channels || !params->n_ssids)
2799 return;
2800
2801 mvm->mei_scan_filter.is_mei_limited_scan = true;
2802
2803 chan = ieee80211_get_channel(mvm->hw->wiphy,
2804 ieee80211_channel_to_frequency(conn_info->channel,
2805 conn_info->band));
2806 if (!chan) {
2807 IWL_DEBUG_SCAN(mvm,
2808 "Failed to get CSME channel (chan=%u band=%u)\n",
2809 conn_info->channel, conn_info->band);
2810 return;
2811 }
2812
2813 /* The mei filtered scan must find the AP, otherwise CSME will
2814 * take the NIC ownership. Add several iterations on the channel to
2815 * make the scan more robust.
2816 */
2817 scan_iters = min(IWL_MEI_SCAN_NUM_ITER, params->n_channels);
2818 params->n_channels = scan_iters;
2819 for (i = 0; i < scan_iters; i++)
2820 params->channels[i] = chan;
2821
2822 IWL_DEBUG_SCAN(mvm, "Mei scan: num iterations=%u\n", scan_iters);
2823
2824 params->n_ssids = 1;
2825 params->ssids[0].ssid_len = conn_info->ssid_len;
2826 memcpy(params->ssids[0].ssid, conn_info->ssid, conn_info->ssid_len);
2827 }
2828
2829 static int iwl_mvm_build_scan_cmd(struct iwl_mvm *mvm,
2830 struct ieee80211_vif *vif,
2831 struct iwl_host_cmd *hcmd,
2832 struct iwl_mvm_scan_params *params,
2833 int type)
2834 {
2835 int uid, i, err;
2836 u8 scan_ver;
2837
2838 lockdep_assert_held(&mvm->mutex);
2839 memset(mvm->scan_cmd, 0, mvm->scan_cmd_size);
2840
2841 iwl_mvm_mei_limited_scan(mvm, params);
2842
2843 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2844 hcmd->id = SCAN_OFFLOAD_REQUEST_CMD;
2845
2846 return iwl_mvm_scan_lmac(mvm, vif, params);
2847 }
2848
2849 uid = iwl_mvm_scan_uid_by_status(mvm, 0);
2850 if (uid < 0)
2851 return uid;
2852
2853 hcmd->id = WIDE_ID(IWL_ALWAYS_LONG_GROUP, SCAN_REQ_UMAC);
2854
2855 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC,
2856 IWL_FW_CMD_VER_UNKNOWN);
2857
2858 for (i = 0; i < ARRAY_SIZE(iwl_scan_umac_handlers); i++) {
2859 const struct iwl_scan_umac_handler *ver_handler =
2860 &iwl_scan_umac_handlers[i];
2861
2862 if (ver_handler->version != scan_ver)
2863 continue;
2864
2865 err = ver_handler->handler(mvm, vif, params, type, uid);
2866 return err ? : uid;
2867 }
2868
2869 err = iwl_mvm_scan_umac(mvm, vif, params, type, uid);
2870 if (err)
2871 return err;
2872
2873 return uid;
2874 }
2875
2876 struct iwl_mvm_scan_respect_p2p_go_iter_data {
2877 struct ieee80211_vif *current_vif;
2878 bool p2p_go;
2879 enum nl80211_band band;
2880 };
2881
2882 static void iwl_mvm_scan_respect_p2p_go_iter(void *_data, u8 *mac,
2883 struct ieee80211_vif *vif)
2884 {
2885 struct iwl_mvm_scan_respect_p2p_go_iter_data *data = _data;
2886 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2887
2888 /* exclude the given vif */
2889 if (vif == data->current_vif)
2890 return;
2891
2892 if (ieee80211_vif_type_p2p(vif) == NL80211_IFTYPE_P2P_GO) {
2893 u32 link_id;
2894
2895 for (link_id = 0;
2896 link_id < ARRAY_SIZE(mvmvif->link);
2897 link_id++) {
2898 struct iwl_mvm_vif_link_info *link =
2899 mvmvif->link[link_id];
2900
2901 if (link && link->phy_ctxt->id < NUM_PHY_CTX &&
2902 (data->band == NUM_NL80211_BANDS ||
2903 link->phy_ctxt->channel->band == data->band)) {
2904 data->p2p_go = true;
2905 break;
2906 }
2907 }
2908 }
2909 }
2910
2911 static bool _iwl_mvm_get_respect_p2p_go(struct iwl_mvm *mvm,
2912 struct ieee80211_vif *vif,
2913 bool low_latency,
2914 enum nl80211_band band)
2915 {
2916 struct iwl_mvm_scan_respect_p2p_go_iter_data data = {
2917 .current_vif = vif,
2918 .p2p_go = false,
2919 .band = band,
2920 };
2921
2922 if (!low_latency)
2923 return false;
2924
2925 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
2926 IEEE80211_IFACE_ITER_NORMAL,
2927 iwl_mvm_scan_respect_p2p_go_iter,
2928 &data);
2929
2930 return data.p2p_go;
2931 }
2932
2933 static bool iwl_mvm_get_respect_p2p_go_band(struct iwl_mvm *mvm,
2934 struct ieee80211_vif *vif,
2935 enum nl80211_band band)
2936 {
2937 bool low_latency = iwl_mvm_low_latency_band(mvm, band);
2938
2939 return _iwl_mvm_get_respect_p2p_go(mvm, vif, low_latency, band);
2940 }
2941
2942 static bool iwl_mvm_get_respect_p2p_go(struct iwl_mvm *mvm,
2943 struct ieee80211_vif *vif)
2944 {
2945 bool low_latency = iwl_mvm_low_latency(mvm);
2946
2947 return _iwl_mvm_get_respect_p2p_go(mvm, vif, low_latency,
2948 NUM_NL80211_BANDS);
2949 }
2950
2951 static void iwl_mvm_fill_respect_p2p_go(struct iwl_mvm *mvm,
2952 struct iwl_mvm_scan_params *params,
2953 struct ieee80211_vif *vif)
2954 {
2955 if (iwl_mvm_is_cdb_supported(mvm)) {
2956 params->respect_p2p_go =
2957 iwl_mvm_get_respect_p2p_go_band(mvm, vif,
2958 NL80211_BAND_2GHZ);
2959 params->respect_p2p_go_hb =
2960 iwl_mvm_get_respect_p2p_go_band(mvm, vif,
2961 NL80211_BAND_5GHZ);
2962 } else {
2963 params->respect_p2p_go = iwl_mvm_get_respect_p2p_go(mvm, vif);
2964 }
2965 }
2966
2967 static int _iwl_mvm_single_scan_start(struct iwl_mvm *mvm,
2968 struct ieee80211_vif *vif,
2969 struct cfg80211_scan_request *req,
2970 struct ieee80211_scan_ies *ies,
2971 int type)
2972 {
2973 struct iwl_host_cmd hcmd = {
2974 .len = { iwl_mvm_scan_size(mvm), },
2975 .data = { mvm->scan_cmd, },
2976 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
2977 };
2978 struct iwl_mvm_scan_params params = {};
2979 int ret, uid;
2980 struct cfg80211_sched_scan_plan scan_plan = { .iterations = 1 };
2981
2982 lockdep_assert_held(&mvm->mutex);
2983
2984 if (iwl_mvm_is_lar_supported(mvm) && !mvm->lar_regdom_set) {
2985 IWL_ERR(mvm, "scan while LAR regdomain is not set\n");
2986 return -EBUSY;
2987 }
2988
2989 ret = iwl_mvm_check_running_scans(mvm, type);
2990 if (ret)
2991 return ret;
2992
2993 /* we should have failed registration if scan_cmd was NULL */
2994 if (WARN_ON(!mvm->scan_cmd))
2995 return -ENOMEM;
2996
2997 if (!iwl_mvm_scan_fits(mvm, req->n_ssids, ies, req->n_channels))
2998 return -ENOBUFS;
2999
3000 params.n_ssids = req->n_ssids;
3001 params.flags = req->flags;
3002 params.n_channels = req->n_channels;
3003 params.delay = 0;
3004 params.ssids = req->ssids;
3005 params.channels = req->channels;
3006 params.mac_addr = req->mac_addr;
3007 params.mac_addr_mask = req->mac_addr_mask;
3008 params.no_cck = req->no_cck;
3009 params.pass_all = true;
3010 params.n_match_sets = 0;
3011 params.match_sets = NULL;
3012 ether_addr_copy(params.bssid, req->bssid);
3013
3014 params.scan_plans = &scan_plan;
3015 params.n_scan_plans = 1;
3016
3017 params.n_6ghz_params = req->n_6ghz_params;
3018 params.scan_6ghz_params = req->scan_6ghz_params;
3019 params.scan_6ghz = req->scan_6ghz;
3020 iwl_mvm_fill_scan_type(mvm, &params, vif);
3021 iwl_mvm_fill_respect_p2p_go(mvm, &params, vif);
3022
3023 if (req->duration)
3024 params.iter_notif = true;
3025
3026 params.tsf_report_link_id = req->tsf_report_link_id;
3027 if (params.tsf_report_link_id < 0) {
3028 if (vif->active_links)
3029 params.tsf_report_link_id = __ffs(vif->active_links);
3030 else
3031 params.tsf_report_link_id = 0;
3032 }
3033
3034 iwl_mvm_build_scan_probe(mvm, vif, ies, &params);
3035
3036 iwl_mvm_scan_6ghz_passive_scan(mvm, &params, vif);
3037
3038 uid = iwl_mvm_build_scan_cmd(mvm, vif, &hcmd, &params, type);
3039
3040 if (uid < 0)
3041 return uid;
3042
3043 iwl_mvm_pause_tcm(mvm, false);
3044
3045 ret = iwl_mvm_send_cmd(mvm, &hcmd);
3046 if (ret) {
3047 /* If the scan failed, it usually means that the FW was unable
3048 * to allocate the time events. Warn on it, but maybe we
3049 * should try to send the command again with different params.
3050 */
3051 IWL_ERR(mvm, "Scan failed! ret %d\n", ret);
3052 iwl_mvm_resume_tcm(mvm);
3053 return ret;
3054 }
3055
3056 IWL_DEBUG_SCAN(mvm, "Scan request send success: type=%u, uid=%u\n",
3057 type, uid);
3058
3059 mvm->scan_uid_status[uid] = type;
3060 mvm->scan_status |= type;
3061
3062 if (type == IWL_MVM_SCAN_REGULAR) {
3063 mvm->scan_vif = iwl_mvm_vif_from_mac80211(vif);
3064 schedule_delayed_work(&mvm->scan_timeout_dwork,
3065 msecs_to_jiffies(SCAN_TIMEOUT));
3066 }
3067
3068 if (params.enable_6ghz_passive)
3069 mvm->last_6ghz_passive_scan_jiffies = jiffies;
3070
3071 return 0;
3072 }
3073
3074 int iwl_mvm_reg_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
3075 struct cfg80211_scan_request *req,
3076 struct ieee80211_scan_ies *ies)
3077 {
3078 return _iwl_mvm_single_scan_start(mvm, vif, req, ies,
3079 IWL_MVM_SCAN_REGULAR);
3080 }
3081
3082 int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
3083 struct ieee80211_vif *vif,
3084 struct cfg80211_sched_scan_request *req,
3085 struct ieee80211_scan_ies *ies,
3086 int type)
3087 {
3088 struct iwl_host_cmd hcmd = {
3089 .len = { iwl_mvm_scan_size(mvm), },
3090 .data = { mvm->scan_cmd, },
3091 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
3092 };
3093 struct iwl_mvm_scan_params params = {};
3094 int ret, uid;
3095 int i, j;
3096 bool non_psc_included = false;
3097
3098 lockdep_assert_held(&mvm->mutex);
3099
3100 if (iwl_mvm_is_lar_supported(mvm) && !mvm->lar_regdom_set) {
3101 IWL_ERR(mvm, "sched-scan while LAR regdomain is not set\n");
3102 return -EBUSY;
3103 }
3104
3105 ret = iwl_mvm_check_running_scans(mvm, type);
3106 if (ret)
3107 return ret;
3108
3109 /* we should have failed registration if scan_cmd was NULL */
3110 if (WARN_ON(!mvm->scan_cmd))
3111 return -ENOMEM;
3112
3113
3114 params.n_ssids = req->n_ssids;
3115 params.flags = req->flags;
3116 params.n_channels = req->n_channels;
3117 params.ssids = req->ssids;
3118 params.channels = req->channels;
3119 params.mac_addr = req->mac_addr;
3120 params.mac_addr_mask = req->mac_addr_mask;
3121 params.no_cck = false;
3122 params.pass_all = iwl_mvm_scan_pass_all(mvm, req);
3123 params.n_match_sets = req->n_match_sets;
3124 params.match_sets = req->match_sets;
3125 eth_broadcast_addr(params.bssid);
3126 if (!req->n_scan_plans)
3127 return -EINVAL;
3128
3129 params.n_scan_plans = req->n_scan_plans;
3130 params.scan_plans = req->scan_plans;
3131
3132 iwl_mvm_fill_scan_type(mvm, &params, vif);
3133 iwl_mvm_fill_respect_p2p_go(mvm, &params, vif);
3134
3135 /* In theory, LMAC scans can handle a 32-bit delay, but since
3136 * waiting for over 18 hours to start the scan is a bit silly
3137 * and to keep it aligned with UMAC scans (which only support
3138 * 16-bit delays), trim it down to 16-bits.
3139 */
3140 if (req->delay > U16_MAX) {
3141 IWL_DEBUG_SCAN(mvm,
3142 "delay value is > 16-bits, set to max possible\n");
3143 params.delay = U16_MAX;
3144 } else {
3145 params.delay = req->delay;
3146 }
3147
3148 ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
3149 if (ret)
3150 return ret;
3151
3152 iwl_mvm_build_scan_probe(mvm, vif, ies, &params);
3153
3154 /* for 6 GHZ band only PSC channels need to be added */
3155 for (i = 0; i < params.n_channels; i++) {
3156 struct ieee80211_channel *channel = params.channels[i];
3157
3158 if (channel->band == NL80211_BAND_6GHZ &&
3159 !cfg80211_channel_is_psc(channel)) {
3160 non_psc_included = true;
3161 break;
3162 }
3163 }
3164
3165 if (non_psc_included) {
3166 params.channels = kmemdup(params.channels,
3167 sizeof(params.channels[0]) *
3168 params.n_channels,
3169 GFP_KERNEL);
3170 if (!params.channels)
3171 return -ENOMEM;
3172
3173 for (i = j = 0; i < params.n_channels; i++) {
3174 if (params.channels[i]->band == NL80211_BAND_6GHZ &&
3175 !cfg80211_channel_is_psc(params.channels[i]))
3176 continue;
3177 params.channels[j++] = params.channels[i];
3178 }
3179 params.n_channels = j;
3180 }
3181
3182 if (!iwl_mvm_scan_fits(mvm, req->n_ssids, ies, params.n_channels)) {
3183 ret = -ENOBUFS;
3184 goto out;
3185 }
3186
3187 uid = iwl_mvm_build_scan_cmd(mvm, vif, &hcmd, &params, type);
3188 if (uid < 0) {
3189 ret = uid;
3190 goto out;
3191 }
3192
3193 ret = iwl_mvm_send_cmd(mvm, &hcmd);
3194 if (!ret) {
3195 IWL_DEBUG_SCAN(mvm,
3196 "Sched scan request send success: type=%u, uid=%u\n",
3197 type, uid);
3198 mvm->scan_uid_status[uid] = type;
3199 mvm->scan_status |= type;
3200 } else {
3201 /* If the scan failed, it usually means that the FW was unable
3202 * to allocate the time events. Warn on it, but maybe we
3203 * should try to send the command again with different params.
3204 */
3205 IWL_ERR(mvm, "Sched scan failed! ret %d\n", ret);
3206 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
3207 }
3208
3209 out:
3210 if (non_psc_included)
3211 kfree(params.channels);
3212 return ret;
3213 }
3214
3215 void iwl_mvm_rx_umac_scan_complete_notif(struct iwl_mvm *mvm,
3216 struct iwl_rx_cmd_buffer *rxb)
3217 {
3218 struct iwl_rx_packet *pkt = rxb_addr(rxb);
3219 struct iwl_umac_scan_complete *notif = (void *)pkt->data;
3220 u32 uid = __le32_to_cpu(notif->uid);
3221 bool aborted = (notif->status == IWL_SCAN_OFFLOAD_ABORTED);
3222 bool select_links = false;
3223
3224 mvm->mei_scan_filter.is_mei_limited_scan = false;
3225
3226 IWL_DEBUG_SCAN(mvm,
3227 "Scan completed: uid=%u type=%u, status=%s, EBS=%s\n",
3228 uid, mvm->scan_uid_status[uid],
3229 notif->status == IWL_SCAN_OFFLOAD_COMPLETED ?
3230 "completed" : "aborted",
3231 iwl_mvm_ebs_status_str(notif->ebs_status));
3232
3233 IWL_DEBUG_SCAN(mvm, "Scan completed: scan_status=0x%x\n",
3234 mvm->scan_status);
3235
3236 IWL_DEBUG_SCAN(mvm,
3237 "Scan completed: line=%u, iter=%u, elapsed time=%u\n",
3238 notif->last_schedule, notif->last_iter,
3239 __le32_to_cpu(notif->time_from_last_iter));
3240
3241 if (WARN_ON(!(mvm->scan_uid_status[uid] & mvm->scan_status)))
3242 return;
3243
3244 /* if the scan is already stopping, we don't need to notify mac80211 */
3245 if (mvm->scan_uid_status[uid] == IWL_MVM_SCAN_REGULAR) {
3246 struct cfg80211_scan_info info = {
3247 .aborted = aborted,
3248 .scan_start_tsf = mvm->scan_start,
3249 };
3250 struct iwl_mvm_vif *scan_vif = mvm->scan_vif;
3251 struct iwl_mvm_vif_link_info *link_info =
3252 scan_vif->link[mvm->scan_link_id];
3253
3254 /* It is possible that by the time the scan is complete the link
3255 * was already removed and is not valid.
3256 */
3257 if (link_info)
3258 memcpy(info.tsf_bssid, link_info->bssid, ETH_ALEN);
3259 else
3260 IWL_DEBUG_SCAN(mvm, "Scan link is no longer valid\n");
3261
3262 ieee80211_scan_completed(mvm->hw, &info);
3263 mvm->scan_vif = NULL;
3264 cancel_delayed_work(&mvm->scan_timeout_dwork);
3265 iwl_mvm_resume_tcm(mvm);
3266 } else if (mvm->scan_uid_status[uid] == IWL_MVM_SCAN_SCHED) {
3267 ieee80211_sched_scan_stopped(mvm->hw);
3268 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
3269 } else if (mvm->scan_uid_status[uid] == IWL_MVM_SCAN_INT_MLO) {
3270 IWL_DEBUG_SCAN(mvm, "Internal MLO scan completed\n");
3271 /*
3272 * Other scan types won't necessarily scan for the MLD links channels.
3273 * Therefore, only select links after successful internal scan.
3274 */
3275 select_links = notif->status == IWL_SCAN_OFFLOAD_COMPLETED;
3276 }
3277
3278 mvm->scan_status &= ~mvm->scan_uid_status[uid];
3279
3280 IWL_DEBUG_SCAN(mvm, "Scan completed: after update: scan_status=0x%x\n",
3281 mvm->scan_status);
3282
3283 if (notif->ebs_status != IWL_SCAN_EBS_SUCCESS &&
3284 notif->ebs_status != IWL_SCAN_EBS_INACTIVE)
3285 mvm->last_ebs_successful = false;
3286
3287 mvm->scan_uid_status[uid] = 0;
3288
3289 if (select_links)
3290 wiphy_work_queue(mvm->hw->wiphy, &mvm->trig_link_selection_wk);
3291 }
3292
3293 void iwl_mvm_rx_umac_scan_iter_complete_notif(struct iwl_mvm *mvm,
3294 struct iwl_rx_cmd_buffer *rxb)
3295 {
3296 struct iwl_rx_packet *pkt = rxb_addr(rxb);
3297 struct iwl_umac_scan_iter_complete_notif *notif = (void *)pkt->data;
3298
3299 mvm->scan_start = le64_to_cpu(notif->start_tsf);
3300
3301 IWL_DEBUG_SCAN(mvm,
3302 "UMAC Scan iteration complete: status=0x%x scanned_channels=%d\n",
3303 notif->status, notif->scanned_channels);
3304
3305 if (mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_FOUND) {
3306 IWL_DEBUG_SCAN(mvm, "Pass all scheduled scan results found\n");
3307 ieee80211_sched_scan_results(mvm->hw);
3308 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_ENABLED;
3309 }
3310
3311 IWL_DEBUG_SCAN(mvm,
3312 "UMAC Scan iteration complete: scan started at %llu (TSF)\n",
3313 mvm->scan_start);
3314 }
3315
3316 static int iwl_mvm_umac_scan_abort(struct iwl_mvm *mvm, int type, bool *wait)
3317 {
3318 struct iwl_umac_scan_abort abort_cmd = {};
3319 struct iwl_host_cmd cmd = {
3320 .id = WIDE_ID(IWL_ALWAYS_LONG_GROUP, SCAN_ABORT_UMAC),
3321 .len = { sizeof(abort_cmd), },
3322 .data = { &abort_cmd, },
3323 .flags = CMD_SEND_IN_RFKILL,
3324 };
3325
3326 int uid, ret;
3327 u32 status = IWL_UMAC_SCAN_ABORT_STATUS_NOT_FOUND;
3328
3329 lockdep_assert_held(&mvm->mutex);
3330
3331 *wait = true;
3332
3333 /* We should always get a valid index here, because we already
3334 * checked that this type of scan was running in the generic
3335 * code.
3336 */
3337 uid = iwl_mvm_scan_uid_by_status(mvm, type);
3338 if (WARN_ON_ONCE(uid < 0))
3339 return uid;
3340
3341 abort_cmd.uid = cpu_to_le32(uid);
3342
3343 IWL_DEBUG_SCAN(mvm, "Sending scan abort, uid %u\n", uid);
3344
3345 ret = iwl_mvm_send_cmd_status(mvm, &cmd, &status);
3346
3347 IWL_DEBUG_SCAN(mvm, "Scan abort: ret=%d, status=%u\n", ret, status);
3348 if (!ret)
3349 mvm->scan_uid_status[uid] = type << IWL_MVM_SCAN_STOPPING_SHIFT;
3350
3351 /* Handle the case that the FW is no longer familiar with the scan that
3352 * is to be stopped. In such a case, it is expected that the scan
3353 * complete notification was already received but not yet processed.
3354 * In such a case, there is no need to wait for a scan complete
3355 * notification and the flow should continue similar to the case that
3356 * the scan was really aborted.
3357 */
3358 if (status == IWL_UMAC_SCAN_ABORT_STATUS_NOT_FOUND) {
3359 mvm->scan_uid_status[uid] = type << IWL_MVM_SCAN_STOPPING_SHIFT;
3360 *wait = false;
3361 }
3362
3363 return ret;
3364 }
3365
3366 static int iwl_mvm_scan_stop_wait(struct iwl_mvm *mvm, int type)
3367 {
3368 struct iwl_notification_wait wait_scan_done;
3369 static const u16 scan_done_notif[] = { SCAN_COMPLETE_UMAC,
3370 SCAN_OFFLOAD_COMPLETE, };
3371 int ret;
3372 bool wait = true;
3373
3374 lockdep_assert_held(&mvm->mutex);
3375
3376 iwl_init_notification_wait(&mvm->notif_wait, &wait_scan_done,
3377 scan_done_notif,
3378 ARRAY_SIZE(scan_done_notif),
3379 NULL, NULL);
3380
3381 IWL_DEBUG_SCAN(mvm, "Preparing to stop scan, type %x\n", type);
3382
3383 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
3384 ret = iwl_mvm_umac_scan_abort(mvm, type, &wait);
3385 else
3386 ret = iwl_mvm_lmac_scan_abort(mvm);
3387
3388 if (ret) {
3389 IWL_DEBUG_SCAN(mvm, "couldn't stop scan type %d\n", type);
3390 iwl_remove_notification(&mvm->notif_wait, &wait_scan_done);
3391 return ret;
3392 } else if (!wait) {
3393 IWL_DEBUG_SCAN(mvm, "no need to wait for scan type %d\n", type);
3394 iwl_remove_notification(&mvm->notif_wait, &wait_scan_done);
3395 return 0;
3396 }
3397
3398 return iwl_wait_notification(&mvm->notif_wait, &wait_scan_done,
3399 1 * HZ);
3400 }
3401
3402 static size_t iwl_scan_req_umac_get_size(u8 scan_ver)
3403 {
3404 switch (scan_ver) {
3405 case 12:
3406 return sizeof(struct iwl_scan_req_umac_v12);
3407 case 14:
3408 case 15:
3409 case 16:
3410 case 17:
3411 return sizeof(struct iwl_scan_req_umac_v17);
3412 }
3413
3414 return 0;
3415 }
3416
3417 size_t iwl_mvm_scan_size(struct iwl_mvm *mvm)
3418 {
3419 int base_size, tail_size;
3420 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC,
3421 IWL_FW_CMD_VER_UNKNOWN);
3422
3423 base_size = iwl_scan_req_umac_get_size(scan_ver);
3424 if (base_size)
3425 return base_size;
3426
3427
3428 if (iwl_mvm_is_adaptive_dwell_v2_supported(mvm))
3429 base_size = IWL_SCAN_REQ_UMAC_SIZE_V8;
3430 else if (iwl_mvm_is_adaptive_dwell_supported(mvm))
3431 base_size = IWL_SCAN_REQ_UMAC_SIZE_V7;
3432 else if (iwl_mvm_cdb_scan_api(mvm))
3433 base_size = IWL_SCAN_REQ_UMAC_SIZE_V6;
3434 else
3435 base_size = IWL_SCAN_REQ_UMAC_SIZE_V1;
3436
3437 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
3438 if (iwl_mvm_is_scan_ext_chan_supported(mvm))
3439 tail_size = sizeof(struct iwl_scan_req_umac_tail_v2);
3440 else
3441 tail_size = sizeof(struct iwl_scan_req_umac_tail_v1);
3442
3443 return base_size +
3444 sizeof(struct iwl_scan_channel_cfg_umac) *
3445 mvm->fw->ucode_capa.n_scan_channels +
3446 tail_size;
3447 }
3448 return sizeof(struct iwl_scan_req_lmac) +
3449 sizeof(struct iwl_scan_channel_cfg_lmac) *
3450 mvm->fw->ucode_capa.n_scan_channels +
3451 sizeof(struct iwl_scan_probe_req_v1);
3452 }
3453
3454 /*
3455 * This function is used in nic restart flow, to inform mac80211 about scans
3456 * that was aborted by restart flow or by an assert.
3457 */
3458 void iwl_mvm_report_scan_aborted(struct iwl_mvm *mvm)
3459 {
3460 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
3461 int uid, i;
3462
3463 uid = iwl_mvm_scan_uid_by_status(mvm, IWL_MVM_SCAN_REGULAR);
3464 if (uid >= 0) {
3465 struct cfg80211_scan_info info = {
3466 .aborted = true,
3467 };
3468
3469 cancel_delayed_work(&mvm->scan_timeout_dwork);
3470
3471 ieee80211_scan_completed(mvm->hw, &info);
3472 mvm->scan_uid_status[uid] = 0;
3473 }
3474 uid = iwl_mvm_scan_uid_by_status(mvm, IWL_MVM_SCAN_SCHED);
3475 if (uid >= 0) {
3476 /* Sched scan will be restarted by mac80211 in
3477 * restart_hw, so do not report if FW is about to be
3478 * restarted.
3479 */
3480 if (!mvm->fw_restart)
3481 ieee80211_sched_scan_stopped(mvm->hw);
3482 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
3483 mvm->scan_uid_status[uid] = 0;
3484 }
3485 uid = iwl_mvm_scan_uid_by_status(mvm, IWL_MVM_SCAN_INT_MLO);
3486 if (uid >= 0) {
3487 IWL_DEBUG_SCAN(mvm, "Internal MLO scan aborted\n");
3488 mvm->scan_uid_status[uid] = 0;
3489 }
3490
3491 uid = iwl_mvm_scan_uid_by_status(mvm,
3492 IWL_MVM_SCAN_STOPPING_REGULAR);
3493 if (uid >= 0)
3494 mvm->scan_uid_status[uid] = 0;
3495
3496 uid = iwl_mvm_scan_uid_by_status(mvm,
3497 IWL_MVM_SCAN_STOPPING_SCHED);
3498 if (uid >= 0)
3499 mvm->scan_uid_status[uid] = 0;
3500
3501 uid = iwl_mvm_scan_uid_by_status(mvm,
3502 IWL_MVM_SCAN_STOPPING_INT_MLO);
3503 if (uid >= 0)
3504 mvm->scan_uid_status[uid] = 0;
3505
3506 /* We shouldn't have any UIDs still set. Loop over all the
3507 * UIDs to make sure there's nothing left there and warn if
3508 * any is found.
3509 */
3510 for (i = 0; i < mvm->max_scans; i++) {
3511 if (WARN_ONCE(mvm->scan_uid_status[i],
3512 "UMAC scan UID %d status was not cleaned\n",
3513 i))
3514 mvm->scan_uid_status[i] = 0;
3515 }
3516 } else {
3517 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) {
3518 struct cfg80211_scan_info info = {
3519 .aborted = true,
3520 };
3521
3522 cancel_delayed_work(&mvm->scan_timeout_dwork);
3523 ieee80211_scan_completed(mvm->hw, &info);
3524 }
3525
3526 /* Sched scan will be restarted by mac80211 in
3527 * restart_hw, so do not report if FW is about to be
3528 * restarted.
3529 */
3530 if ((mvm->scan_status & IWL_MVM_SCAN_SCHED) &&
3531 !mvm->fw_restart) {
3532 ieee80211_sched_scan_stopped(mvm->hw);
3533 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
3534 }
3535 }
3536 }
3537
3538 int iwl_mvm_scan_stop(struct iwl_mvm *mvm, int type, bool notify)
3539 {
3540 int ret;
3541
3542 IWL_DEBUG_SCAN(mvm,
3543 "Request to stop scan: type=0x%x, status=0x%x\n",
3544 type, mvm->scan_status);
3545
3546 if (!(mvm->scan_status & type))
3547 return 0;
3548
3549 if (!test_bit(STATUS_DEVICE_ENABLED, &mvm->trans->status)) {
3550 ret = 0;
3551 goto out;
3552 }
3553
3554 ret = iwl_mvm_scan_stop_wait(mvm, type);
3555 if (!ret)
3556 mvm->scan_status |= type << IWL_MVM_SCAN_STOPPING_SHIFT;
3557 else
3558 IWL_DEBUG_SCAN(mvm, "Failed to stop scan\n");
3559
3560 out:
3561 /* Clear the scan status so the next scan requests will
3562 * succeed and mark the scan as stopping, so that the Rx
3563 * handler doesn't do anything, as the scan was stopped from
3564 * above.
3565 */
3566 mvm->scan_status &= ~type;
3567
3568 if (type == IWL_MVM_SCAN_REGULAR) {
3569 cancel_delayed_work(&mvm->scan_timeout_dwork);
3570 if (notify) {
3571 struct cfg80211_scan_info info = {
3572 .aborted = true,
3573 };
3574
3575 ieee80211_scan_completed(mvm->hw, &info);
3576 }
3577 } else if (notify) {
3578 ieee80211_sched_scan_stopped(mvm->hw);
3579 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
3580 }
3581
3582 return ret;
3583 }
3584
3585 static int iwl_mvm_int_mlo_scan_start(struct iwl_mvm *mvm,
3586 struct ieee80211_vif *vif,
3587 struct ieee80211_channel **channels,
3588 size_t n_channels)
3589 {
3590 struct cfg80211_scan_request *req = NULL;
3591 struct ieee80211_scan_ies ies = {};
3592 size_t size, i;
3593 int ret;
3594
3595 lockdep_assert_held(&mvm->mutex);
3596
3597 IWL_DEBUG_SCAN(mvm, "Starting Internal MLO scan: n_channels=%zu\n",
3598 n_channels);
3599
3600 if (!vif->cfg.assoc || !ieee80211_vif_is_mld(vif) ||
3601 hweight16(vif->valid_links) == 1)
3602 return -EINVAL;
3603
3604 size = struct_size(req, channels, n_channels);
3605 req = kzalloc(size, GFP_KERNEL);
3606 if (!req)
3607 return -ENOMEM;
3608
3609 /* set the requested channels */
3610 for (i = 0; i < n_channels; i++)
3611 req->channels[i] = channels[i];
3612
3613 req->n_channels = n_channels;
3614
3615 /* set the rates */
3616 for (i = 0; i < NUM_NL80211_BANDS; i++)
3617 if (mvm->hw->wiphy->bands[i])
3618 req->rates[i] =
3619 (1 << mvm->hw->wiphy->bands[i]->n_bitrates) - 1;
3620
3621 req->wdev = ieee80211_vif_to_wdev(vif);
3622 req->wiphy = mvm->hw->wiphy;
3623 req->scan_start = jiffies;
3624 req->tsf_report_link_id = -1;
3625
3626 ret = _iwl_mvm_single_scan_start(mvm, vif, req, &ies,
3627 IWL_MVM_SCAN_INT_MLO);
3628 kfree(req);
3629
3630 IWL_DEBUG_SCAN(mvm, "Internal MLO scan: ret=%d\n", ret);
3631 return ret;
3632 }
3633
3634 int iwl_mvm_int_mlo_scan(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
3635 {
3636 struct ieee80211_channel *channels[IEEE80211_MLD_MAX_NUM_LINKS];
3637 unsigned long usable_links = ieee80211_vif_usable_links(vif);
3638 size_t n_channels = 0;
3639 u8 link_id;
3640
3641 lockdep_assert_held(&mvm->mutex);
3642
3643 if (mvm->scan_status & IWL_MVM_SCAN_INT_MLO) {
3644 IWL_DEBUG_SCAN(mvm, "Internal MLO scan is already running\n");
3645 return -EBUSY;
3646 }
3647
3648 rcu_read_lock();
3649
3650 for_each_set_bit(link_id, &usable_links, IEEE80211_MLD_MAX_NUM_LINKS) {
3651 struct ieee80211_bss_conf *link_conf =
3652 rcu_dereference(vif->link_conf[link_id]);
3653
3654 if (WARN_ON_ONCE(!link_conf))
3655 continue;
3656
3657 channels[n_channels++] = link_conf->chanreq.oper.chan;
3658 }
3659
3660 rcu_read_unlock();
3661
3662 if (!n_channels)
3663 return -EINVAL;
3664
3665 return iwl_mvm_int_mlo_scan_start(mvm, vif, channels, n_channels);
3666 }
3667
3668 static int iwl_mvm_chanidx_from_phy(struct iwl_mvm *mvm,
3669 enum nl80211_band band,
3670 u16 phy_chan_num)
3671 {
3672 struct ieee80211_supported_band *sband = mvm->hw->wiphy->bands[band];
3673 int chan_idx;
3674
3675 if (WARN_ON_ONCE(!sband))
3676 return -EINVAL;
3677
3678 for (chan_idx = 0; chan_idx < sband->n_channels; chan_idx++) {
3679 struct ieee80211_channel *channel = &sband->channels[chan_idx];
3680
3681 if (channel->hw_value == phy_chan_num)
3682 return chan_idx;
3683 }
3684
3685 return -EINVAL;
3686 }
3687
3688 static u32 iwl_mvm_div_by_db(u32 value, u8 db)
3689 {
3690 /*
3691 * 2^32 * 10**(i / 10) for i = [1, 10], skipping 0 and simply stopping
3692 * at 10 dB and looping instead of using a much larger table.
3693 *
3694 * Using 64 bit math is overkill, but means the helper does not require
3695 * a limit on the input range.
3696 */
3697 static const u32 db_to_val[] = {
3698 0xcb59185e, 0xa1866ba8, 0x804dce7a, 0x65ea59fe, 0x50f44d89,
3699 0x404de61f, 0x331426af, 0x2892c18b, 0x203a7e5b, 0x1999999a,
3700 };
3701
3702 while (value && db > 0) {
3703 u8 change = min_t(u8, db, ARRAY_SIZE(db_to_val));
3704
3705 value = (((u64)value) * db_to_val[change - 1]) >> 32;
3706
3707 db -= change;
3708 }
3709
3710 return value;
3711 }
3712
3713 VISIBLE_IF_IWLWIFI_KUNIT s8
3714 iwl_mvm_average_dbm_values(const struct iwl_umac_scan_channel_survey_notif *notif)
3715 {
3716 s8 average_magnitude;
3717 u32 average_factor;
3718 s8 sum_magnitude = -128;
3719 u32 sum_factor = 0;
3720 int i, count = 0;
3721
3722 /*
3723 * To properly average the decibel values (signal values given in dBm)
3724 * we need to do the math in linear space. Doing a linear average of
3725 * dB (dBm) values is a bit annoying though due to the large range of
3726 * at least -10 to -110 dBm that will not fit into a 32 bit integer.
3727 *
3728 * A 64 bit integer should be sufficient, but then we still have the
3729 * problem that there are no directly usable utility functions
3730 * available.
3731 *
3732 * So, lets not deal with that and instead do much of the calculation
3733 * with a 16.16 fixed point integer along with a base in dBm. 16.16 bit
3734 * gives us plenty of head-room for adding up a few values and even
3735 * doing some math on it. And the tail should be accurate enough too
3736 * (1/2^16 is somewhere around -48 dB, so effectively zero).
3737 *
3738 * i.e. the real value of sum is:
3739 * sum = sum_factor / 2^16 * 10^(sum_magnitude / 10) mW
3740 *
3741 * However, that does mean we need to be able to bring two values to
3742 * a common base, so we need a helper for that.
3743 *
3744 * Note that this function takes an input with unsigned negative dBm
3745 * values but returns a signed dBm (i.e. a negative value).
3746 */
3747
3748 for (i = 0; i < ARRAY_SIZE(notif->noise); i++) {
3749 s8 val_magnitude;
3750 u32 val_factor;
3751
3752 if (notif->noise[i] == 0xff)
3753 continue;
3754
3755 val_factor = 0x10000;
3756 val_magnitude = -notif->noise[i];
3757
3758 if (val_magnitude <= sum_magnitude) {
3759 u8 div_db = sum_magnitude - val_magnitude;
3760
3761 val_factor = iwl_mvm_div_by_db(val_factor, div_db);
3762 val_magnitude = sum_magnitude;
3763 } else {
3764 u8 div_db = val_magnitude - sum_magnitude;
3765
3766 sum_factor = iwl_mvm_div_by_db(sum_factor, div_db);
3767 sum_magnitude = val_magnitude;
3768 }
3769
3770 sum_factor += val_factor;
3771 count++;
3772 }
3773
3774 /* No valid noise measurement, return a very high noise level */
3775 if (count == 0)
3776 return 0;
3777
3778 average_magnitude = sum_magnitude;
3779 average_factor = sum_factor / count;
3780
3781 /*
3782 * average_factor will be a number smaller than 1.0 (0x10000) at this
3783 * point. What we need to do now is to adjust average_magnitude so that
3784 * average_factor is between -0.5 dB and 0.5 dB.
3785 *
3786 * Just do -1 dB steps and find the point where
3787 * -0.5 dB * -i dB = 0x10000 * 10^(-0.5/10) / i dB
3788 * = div_by_db(0xe429, i)
3789 * is smaller than average_factor.
3790 */
3791 for (i = 0; average_factor < iwl_mvm_div_by_db(0xe429, i); i++) {
3792 /* nothing */
3793 }
3794
3795 return average_magnitude - i;
3796 }
3797 EXPORT_SYMBOL_IF_IWLWIFI_KUNIT(iwl_mvm_average_dbm_values);
3798
3799 void iwl_mvm_rx_channel_survey_notif(struct iwl_mvm *mvm,
3800 struct iwl_rx_cmd_buffer *rxb)
3801 {
3802 struct iwl_rx_packet *pkt = rxb_addr(rxb);
3803 const struct iwl_umac_scan_channel_survey_notif *notif =
3804 (void *)pkt->data;
3805 struct iwl_mvm_acs_survey_channel *info;
3806 enum nl80211_band band;
3807 int chan_idx;
3808
3809 lockdep_assert_held(&mvm->mutex);
3810
3811 if (!mvm->acs_survey) {
3812 size_t n_channels = 0;
3813
3814 for (band = 0; band < NUM_NL80211_BANDS; band++) {
3815 if (!mvm->hw->wiphy->bands[band])
3816 continue;
3817
3818 n_channels += mvm->hw->wiphy->bands[band]->n_channels;
3819 }
3820
3821 mvm->acs_survey = kzalloc(struct_size(mvm->acs_survey,
3822 channels, n_channels),
3823 GFP_KERNEL);
3824
3825 if (!mvm->acs_survey)
3826 return;
3827
3828 mvm->acs_survey->n_channels = n_channels;
3829 n_channels = 0;
3830 for (band = 0; band < NUM_NL80211_BANDS; band++) {
3831 if (!mvm->hw->wiphy->bands[band])
3832 continue;
3833
3834 mvm->acs_survey->bands[band] =
3835 &mvm->acs_survey->channels[n_channels];
3836 n_channels += mvm->hw->wiphy->bands[band]->n_channels;
3837 }
3838 }
3839
3840 band = iwl_mvm_nl80211_band_from_phy(le32_to_cpu(notif->band));
3841 chan_idx = iwl_mvm_chanidx_from_phy(mvm, band,
3842 le32_to_cpu(notif->channel));
3843 if (WARN_ON_ONCE(chan_idx < 0))
3844 return;
3845
3846 IWL_DEBUG_SCAN(mvm, "channel survey received for freq %d\n",
3847 mvm->hw->wiphy->bands[band]->channels[chan_idx].center_freq);
3848
3849 info = &mvm->acs_survey->bands[band][chan_idx];
3850
3851 /* Times are all in ms */
3852 info->time = le32_to_cpu(notif->active_time);
3853 info->time_busy = le32_to_cpu(notif->busy_time);
3854 info->time_rx = le32_to_cpu(notif->rx_time);
3855 info->time_tx = le32_to_cpu(notif->tx_time);
3856 info->noise = iwl_mvm_average_dbm_values(notif);
3857 }
Kernel DRM miscellaneous fixes and cross-tree changes