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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#define IWL_SCAN_LAST_2_4_CHN 14
24
25
26#define IWL_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN 300
27
28#define IWL_SCAN_ADWELL_MAX_BUDGET_DIRECTED_SCAN 100
29
30#define IWL_SCAN_ADWELL_DEFAULT_HB_N_APS 8
31
32#define IWL_SCAN_ADWELL_DEFAULT_LB_N_APS 2
33
34#define IWL_SCAN_ADWELL_DEFAULT_N_APS_SOCIAL 10
35
36#define IWL_SCAN_NUM_CHANNELS 112
37
38#define IWL_SCAN_ADWELL_N_APS_GO_FRIENDLY_BIT BIT(20)
39
40#define IWL_SCAN_ADWELL_N_APS_SOCIAL_CHS_BIT BIT(21)
41
42#define IWL_SCAN_ADWELL_N_APS_GO_FRIENDLY 10
43
44#define IWL_SCAN_ADWELL_N_APS_SOCIAL_CHS 2
45
46
47#define IWL_MVM_6GHZ_PASSIVE_SCAN_MIN_CHANS 4
48
49struct iwl_mvm_scan_timing_params {
50 u32 suspend_time;
51 u32 max_out_time;
52};
53
54static struct iwl_mvm_scan_timing_params scan_timing[] = {
55 [IWL_SCAN_TYPE_UNASSOC] = {
56 .suspend_time = 0,
57 .max_out_time = 0,
58 },
59 [IWL_SCAN_TYPE_WILD] = {
60 .suspend_time = 30,
61 .max_out_time = 120,
62 },
63 [IWL_SCAN_TYPE_MILD] = {
64 .suspend_time = 120,
65 .max_out_time = 120,
66 },
67 [IWL_SCAN_TYPE_FRAGMENTED] = {
68 .suspend_time = 95,
69 .max_out_time = 44,
70 },
71 [IWL_SCAN_TYPE_FAST_BALANCE] = {
72 .suspend_time = 30,
73 .max_out_time = 37,
74 },
75};
76
77struct iwl_mvm_scan_params {
78
79 enum iwl_mvm_scan_type type;
80 enum iwl_mvm_scan_type hb_type;
81 u32 n_channels;
82 u16 delay;
83 int n_ssids;
84 struct cfg80211_ssid *ssids;
85 struct ieee80211_channel **channels;
86 u32 flags;
87 u8 *mac_addr;
88 u8 *mac_addr_mask;
89 bool no_cck;
90 bool pass_all;
91 int n_match_sets;
92 struct iwl_scan_probe_req preq;
93 struct cfg80211_match_set *match_sets;
94 int n_scan_plans;
95 struct cfg80211_sched_scan_plan *scan_plans;
96 bool iter_notif;
97 struct cfg80211_scan_6ghz_params *scan_6ghz_params;
98 u32 n_6ghz_params;
99 bool scan_6ghz;
100 bool enable_6ghz_passive;
101};
102
103static inline void *iwl_mvm_get_scan_req_umac_data(struct iwl_mvm *mvm)
104{
105 struct iwl_scan_req_umac *cmd = mvm->scan_cmd;
106
107 if (iwl_mvm_is_adaptive_dwell_v2_supported(mvm))
108 return (void *)&cmd->v8.data;
109
110 if (iwl_mvm_is_adaptive_dwell_supported(mvm))
111 return (void *)&cmd->v7.data;
112
113 if (iwl_mvm_cdb_scan_api(mvm))
114 return (void *)&cmd->v6.data;
115
116 return (void *)&cmd->v1.data;
117}
118
119static inline struct iwl_scan_umac_chan_param *
120iwl_mvm_get_scan_req_umac_channel(struct iwl_mvm *mvm)
121{
122 struct iwl_scan_req_umac *cmd = mvm->scan_cmd;
123
124 if (iwl_mvm_is_adaptive_dwell_v2_supported(mvm))
125 return &cmd->v8.channel;
126
127 if (iwl_mvm_is_adaptive_dwell_supported(mvm))
128 return &cmd->v7.channel;
129
130 if (iwl_mvm_cdb_scan_api(mvm))
131 return &cmd->v6.channel;
132
133 return &cmd->v1.channel;
134}
135
136static u8 iwl_mvm_scan_rx_ant(struct iwl_mvm *mvm)
137{
138 if (mvm->scan_rx_ant != ANT_NONE)
139 return mvm->scan_rx_ant;
140 return iwl_mvm_get_valid_rx_ant(mvm);
141}
142
143static inline __le16 iwl_mvm_scan_rx_chain(struct iwl_mvm *mvm)
144{
145 u16 rx_chain;
146 u8 rx_ant;
147
148 rx_ant = iwl_mvm_scan_rx_ant(mvm);
149 rx_chain = rx_ant << PHY_RX_CHAIN_VALID_POS;
150 rx_chain |= rx_ant << PHY_RX_CHAIN_FORCE_MIMO_SEL_POS;
151 rx_chain |= rx_ant << PHY_RX_CHAIN_FORCE_SEL_POS;
152 rx_chain |= 0x1 << PHY_RX_CHAIN_DRIVER_FORCE_POS;
153 return cpu_to_le16(rx_chain);
154}
155
156static inline __le32
157iwl_mvm_scan_rate_n_flags(struct iwl_mvm *mvm, enum nl80211_band band,
158 bool no_cck)
159{
160 u32 tx_ant;
161
162 iwl_mvm_toggle_tx_ant(mvm, &mvm->scan_last_antenna_idx);
163 tx_ant = BIT(mvm->scan_last_antenna_idx) << RATE_MCS_ANT_POS;
164
165 if (band == NL80211_BAND_2GHZ && !no_cck)
166 return cpu_to_le32(IWL_RATE_1M_PLCP | RATE_MCS_CCK_MSK |
167 tx_ant);
168 else
169 return cpu_to_le32(IWL_RATE_6M_PLCP | tx_ant);
170}
171
172static void iwl_mvm_scan_condition_iterator(void *data, u8 *mac,
173 struct ieee80211_vif *vif)
174{
175 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
176 int *global_cnt = data;
177
178 if (vif->type != NL80211_IFTYPE_P2P_DEVICE && mvmvif->phy_ctxt &&
179 mvmvif->phy_ctxt->id < NUM_PHY_CTX)
180 *global_cnt += 1;
181}
182
183static enum iwl_mvm_traffic_load iwl_mvm_get_traffic_load(struct iwl_mvm *mvm)
184{
185 return mvm->tcm.result.global_load;
186}
187
188static enum iwl_mvm_traffic_load
189iwl_mvm_get_traffic_load_band(struct iwl_mvm *mvm, enum nl80211_band band)
190{
191 return mvm->tcm.result.band_load[band];
192}
193
194struct iwl_is_dcm_with_go_iterator_data {
195 struct ieee80211_vif *current_vif;
196 bool is_dcm_with_p2p_go;
197};
198
199static void iwl_mvm_is_dcm_with_go_iterator(void *_data, u8 *mac,
200 struct ieee80211_vif *vif)
201{
202 struct iwl_is_dcm_with_go_iterator_data *data = _data;
203 struct iwl_mvm_vif *other_mvmvif = iwl_mvm_vif_from_mac80211(vif);
204 struct iwl_mvm_vif *curr_mvmvif =
205 iwl_mvm_vif_from_mac80211(data->current_vif);
206
207
208 if (vif == data->current_vif)
209 return;
210
211 if (vif->type == NL80211_IFTYPE_AP && vif->p2p &&
212 other_mvmvif->phy_ctxt && curr_mvmvif->phy_ctxt &&
213 other_mvmvif->phy_ctxt->id != curr_mvmvif->phy_ctxt->id)
214 data->is_dcm_with_p2p_go = true;
215}
216
217static enum
218iwl_mvm_scan_type _iwl_mvm_get_scan_type(struct iwl_mvm *mvm,
219 struct ieee80211_vif *vif,
220 enum iwl_mvm_traffic_load load,
221 bool low_latency)
222{
223 int global_cnt = 0;
224
225 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
226 IEEE80211_IFACE_ITER_NORMAL,
227 iwl_mvm_scan_condition_iterator,
228 &global_cnt);
229 if (!global_cnt)
230 return IWL_SCAN_TYPE_UNASSOC;
231
232 if (fw_has_api(&mvm->fw->ucode_capa,
233 IWL_UCODE_TLV_API_FRAGMENTED_SCAN)) {
234 if ((load == IWL_MVM_TRAFFIC_HIGH || low_latency) &&
235 (!vif || vif->type != NL80211_IFTYPE_P2P_DEVICE))
236 return IWL_SCAN_TYPE_FRAGMENTED;
237
238
239
240
241 if (vif && vif->type == NL80211_IFTYPE_STATION &&
242 vif->bss_conf.dtim_period < 220) {
243 struct iwl_is_dcm_with_go_iterator_data data = {
244 .current_vif = vif,
245 .is_dcm_with_p2p_go = false,
246 };
247
248 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
249 IEEE80211_IFACE_ITER_NORMAL,
250 iwl_mvm_is_dcm_with_go_iterator,
251 &data);
252 if (data.is_dcm_with_p2p_go)
253 return IWL_SCAN_TYPE_FAST_BALANCE;
254 }
255 }
256
257 if (load >= IWL_MVM_TRAFFIC_MEDIUM || low_latency)
258 return IWL_SCAN_TYPE_MILD;
259
260 return IWL_SCAN_TYPE_WILD;
261}
262
263static enum
264iwl_mvm_scan_type iwl_mvm_get_scan_type(struct iwl_mvm *mvm,
265 struct ieee80211_vif *vif)
266{
267 enum iwl_mvm_traffic_load load;
268 bool low_latency;
269
270 load = iwl_mvm_get_traffic_load(mvm);
271 low_latency = iwl_mvm_low_latency(mvm);
272
273 return _iwl_mvm_get_scan_type(mvm, vif, load, low_latency);
274}
275
276static enum
277iwl_mvm_scan_type iwl_mvm_get_scan_type_band(struct iwl_mvm *mvm,
278 struct ieee80211_vif *vif,
279 enum nl80211_band band)
280{
281 enum iwl_mvm_traffic_load load;
282 bool low_latency;
283
284 load = iwl_mvm_get_traffic_load_band(mvm, band);
285 low_latency = iwl_mvm_low_latency_band(mvm, band);
286
287 return _iwl_mvm_get_scan_type(mvm, vif, load, low_latency);
288}
289
290static inline bool iwl_mvm_rrm_scan_needed(struct iwl_mvm *mvm)
291{
292
293 return fw_has_capa(&mvm->fw->ucode_capa,
294 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT);
295}
296
297static int iwl_mvm_max_scan_ie_fw_cmd_room(struct iwl_mvm *mvm)
298{
299 int max_probe_len;
300
301 max_probe_len = SCAN_OFFLOAD_PROBE_REQ_SIZE;
302
303
304 max_probe_len -= 24 + 2;
305
306
307 if (iwl_mvm_rrm_scan_needed(mvm))
308 max_probe_len -= 3;
309
310 return max_probe_len;
311}
312
313int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm)
314{
315 int max_ie_len = iwl_mvm_max_scan_ie_fw_cmd_room(mvm);
316
317
318
319
320
321
322
323
324
325
326
327 return max_ie_len;
328}
329
330void iwl_mvm_rx_lmac_scan_iter_complete_notif(struct iwl_mvm *mvm,
331 struct iwl_rx_cmd_buffer *rxb)
332{
333 struct iwl_rx_packet *pkt = rxb_addr(rxb);
334 struct iwl_lmac_scan_complete_notif *notif = (void *)pkt->data;
335
336 IWL_DEBUG_SCAN(mvm,
337 "Scan offload iteration complete: status=0x%x scanned channels=%d\n",
338 notif->status, notif->scanned_channels);
339
340 if (mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_FOUND) {
341 IWL_DEBUG_SCAN(mvm, "Pass all scheduled scan results found\n");
342 ieee80211_sched_scan_results(mvm->hw);
343 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_ENABLED;
344 }
345}
346
347void iwl_mvm_rx_scan_match_found(struct iwl_mvm *mvm,
348 struct iwl_rx_cmd_buffer *rxb)
349{
350 IWL_DEBUG_SCAN(mvm, "Scheduled scan results\n");
351 ieee80211_sched_scan_results(mvm->hw);
352}
353
354static const char *iwl_mvm_ebs_status_str(enum iwl_scan_ebs_status status)
355{
356 switch (status) {
357 case IWL_SCAN_EBS_SUCCESS:
358 return "successful";
359 case IWL_SCAN_EBS_INACTIVE:
360 return "inactive";
361 case IWL_SCAN_EBS_FAILED:
362 case IWL_SCAN_EBS_CHAN_NOT_FOUND:
363 default:
364 return "failed";
365 }
366}
367
368void iwl_mvm_rx_lmac_scan_complete_notif(struct iwl_mvm *mvm,
369 struct iwl_rx_cmd_buffer *rxb)
370{
371 struct iwl_rx_packet *pkt = rxb_addr(rxb);
372 struct iwl_periodic_scan_complete *scan_notif = (void *)pkt->data;
373 bool aborted = (scan_notif->status == IWL_SCAN_OFFLOAD_ABORTED);
374
375
376
377
378 if (WARN_ON_ONCE(fw_has_capa(&mvm->fw->ucode_capa,
379 IWL_UCODE_TLV_CAPA_UMAC_SCAN)))
380 return;
381
382
383 lockdep_assert_held(&mvm->mutex);
384
385
386
387
388
389
390
391
392
393
394
395 if (mvm->scan_status & IWL_MVM_SCAN_STOPPING_SCHED) {
396 WARN_ON_ONCE(mvm->scan_status & IWL_MVM_SCAN_STOPPING_REGULAR);
397
398 IWL_DEBUG_SCAN(mvm, "Scheduled scan %s, EBS status %s\n",
399 aborted ? "aborted" : "completed",
400 iwl_mvm_ebs_status_str(scan_notif->ebs_status));
401 IWL_DEBUG_SCAN(mvm,
402 "Last line %d, Last iteration %d, Time after last iteration %d\n",
403 scan_notif->last_schedule_line,
404 scan_notif->last_schedule_iteration,
405 __le32_to_cpu(scan_notif->time_after_last_iter));
406
407 mvm->scan_status &= ~IWL_MVM_SCAN_STOPPING_SCHED;
408 } else if (mvm->scan_status & IWL_MVM_SCAN_STOPPING_REGULAR) {
409 IWL_DEBUG_SCAN(mvm, "Regular scan %s, EBS status %s\n",
410 aborted ? "aborted" : "completed",
411 iwl_mvm_ebs_status_str(scan_notif->ebs_status));
412
413 mvm->scan_status &= ~IWL_MVM_SCAN_STOPPING_REGULAR;
414 } else if (mvm->scan_status & IWL_MVM_SCAN_SCHED) {
415 WARN_ON_ONCE(mvm->scan_status & IWL_MVM_SCAN_REGULAR);
416
417 IWL_DEBUG_SCAN(mvm, "Scheduled scan %s, EBS status %s\n",
418 aborted ? "aborted" : "completed",
419 iwl_mvm_ebs_status_str(scan_notif->ebs_status));
420 IWL_DEBUG_SCAN(mvm,
421 "Last line %d, Last iteration %d, Time after last iteration %d (FW)\n",
422 scan_notif->last_schedule_line,
423 scan_notif->last_schedule_iteration,
424 __le32_to_cpu(scan_notif->time_after_last_iter));
425
426 mvm->scan_status &= ~IWL_MVM_SCAN_SCHED;
427 ieee80211_sched_scan_stopped(mvm->hw);
428 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
429 } else if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) {
430 struct cfg80211_scan_info info = {
431 .aborted = aborted,
432 };
433
434 IWL_DEBUG_SCAN(mvm, "Regular scan %s, EBS status %s (FW)\n",
435 aborted ? "aborted" : "completed",
436 iwl_mvm_ebs_status_str(scan_notif->ebs_status));
437
438 mvm->scan_status &= ~IWL_MVM_SCAN_REGULAR;
439 ieee80211_scan_completed(mvm->hw, &info);
440 cancel_delayed_work(&mvm->scan_timeout_dwork);
441 iwl_mvm_resume_tcm(mvm);
442 } else {
443 IWL_ERR(mvm,
444 "got scan complete notification but no scan is running\n");
445 }
446
447 mvm->last_ebs_successful =
448 scan_notif->ebs_status == IWL_SCAN_EBS_SUCCESS ||
449 scan_notif->ebs_status == IWL_SCAN_EBS_INACTIVE;
450}
451
452static int iwl_ssid_exist(u8 *ssid, u8 ssid_len, struct iwl_ssid_ie *ssid_list)
453{
454 int i;
455
456 for (i = 0; i < PROBE_OPTION_MAX; i++) {
457 if (!ssid_list[i].len)
458 break;
459 if (ssid_list[i].len == ssid_len &&
460 !memcmp(ssid_list->ssid, ssid, ssid_len))
461 return i;
462 }
463 return -1;
464}
465
466
467
468
469static void iwl_scan_build_ssids(struct iwl_mvm_scan_params *params,
470 struct iwl_ssid_ie *ssids,
471 u32 *ssid_bitmap)
472{
473 int i, j;
474 int index;
475 u32 tmp_bitmap = 0;
476
477
478
479
480
481
482 for (i = 0, j = params->n_match_sets - 1;
483 j >= 0 && i < PROBE_OPTION_MAX;
484 i++, j--) {
485
486 if (!params->match_sets[j].ssid.ssid_len)
487 continue;
488 ssids[i].id = WLAN_EID_SSID;
489 ssids[i].len = params->match_sets[j].ssid.ssid_len;
490 memcpy(ssids[i].ssid, params->match_sets[j].ssid.ssid,
491 ssids[i].len);
492 }
493
494
495 for (j = params->n_ssids - 1;
496 j >= 0 && i < PROBE_OPTION_MAX;
497 i++, j--) {
498 index = iwl_ssid_exist(params->ssids[j].ssid,
499 params->ssids[j].ssid_len,
500 ssids);
501 if (index < 0) {
502 ssids[i].id = WLAN_EID_SSID;
503 ssids[i].len = params->ssids[j].ssid_len;
504 memcpy(ssids[i].ssid, params->ssids[j].ssid,
505 ssids[i].len);
506 tmp_bitmap |= BIT(i);
507 } else {
508 tmp_bitmap |= BIT(index);
509 }
510 }
511 if (ssid_bitmap)
512 *ssid_bitmap = tmp_bitmap;
513}
514
515static int
516iwl_mvm_config_sched_scan_profiles(struct iwl_mvm *mvm,
517 struct cfg80211_sched_scan_request *req)
518{
519 struct iwl_scan_offload_profile *profile;
520 struct iwl_scan_offload_profile_cfg_v1 *profile_cfg_v1;
521 struct iwl_scan_offload_blocklist *blocklist;
522 struct iwl_scan_offload_profile_cfg_data *data;
523 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw);
524 int profile_cfg_size = sizeof(*data) +
525 sizeof(*profile) * max_profiles;
526 struct iwl_host_cmd cmd = {
527 .id = SCAN_OFFLOAD_UPDATE_PROFILES_CMD,
528 .len[1] = profile_cfg_size,
529 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
530 .dataflags[1] = IWL_HCMD_DFL_NOCOPY,
531 };
532 int blocklist_len;
533 int i;
534 int ret;
535
536 if (WARN_ON(req->n_match_sets > max_profiles))
537 return -EIO;
538
539 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SHORT_BL)
540 blocklist_len = IWL_SCAN_SHORT_BLACKLIST_LEN;
541 else
542 blocklist_len = IWL_SCAN_MAX_BLACKLIST_LEN;
543
544 blocklist = kcalloc(blocklist_len, sizeof(*blocklist), GFP_KERNEL);
545 if (!blocklist)
546 return -ENOMEM;
547
548 profile_cfg_v1 = kzalloc(profile_cfg_size, GFP_KERNEL);
549 if (!profile_cfg_v1) {
550 ret = -ENOMEM;
551 goto free_blocklist;
552 }
553
554 cmd.data[0] = blocklist;
555 cmd.len[0] = sizeof(*blocklist) * blocklist_len;
556 cmd.data[1] = profile_cfg_v1;
557
558
559 if (max_profiles == IWL_SCAN_MAX_PROFILES_V2) {
560 struct iwl_scan_offload_profile_cfg *profile_cfg =
561 (struct iwl_scan_offload_profile_cfg *)profile_cfg_v1;
562
563 data = &profile_cfg->data;
564 } else {
565 data = &profile_cfg_v1->data;
566 }
567
568
569 data->num_profiles = req->n_match_sets;
570 data->active_clients = SCAN_CLIENT_SCHED_SCAN;
571 data->pass_match = SCAN_CLIENT_SCHED_SCAN;
572 data->match_notify = SCAN_CLIENT_SCHED_SCAN;
573
574 if (!req->n_match_sets || !req->match_sets[0].ssid.ssid_len)
575 data->any_beacon_notify = SCAN_CLIENT_SCHED_SCAN;
576
577 for (i = 0; i < req->n_match_sets; i++) {
578 profile = &profile_cfg_v1->profiles[i];
579 profile->ssid_index = i;
580
581 profile->unicast_cipher = 0xff;
582 profile->auth_alg = 0xff;
583 profile->network_type = IWL_NETWORK_TYPE_ANY;
584 profile->band_selection = IWL_SCAN_OFFLOAD_SELECT_ANY;
585 profile->client_bitmap = SCAN_CLIENT_SCHED_SCAN;
586 }
587
588 IWL_DEBUG_SCAN(mvm, "Sending scheduled scan profile config\n");
589
590 ret = iwl_mvm_send_cmd(mvm, &cmd);
591 kfree(profile_cfg_v1);
592free_blocklist:
593 kfree(blocklist);
594
595 return ret;
596}
597
598static bool iwl_mvm_scan_pass_all(struct iwl_mvm *mvm,
599 struct cfg80211_sched_scan_request *req)
600{
601 if (req->n_match_sets && req->match_sets[0].ssid.ssid_len) {
602 IWL_DEBUG_SCAN(mvm,
603 "Sending scheduled scan with filtering, n_match_sets %d\n",
604 req->n_match_sets);
605 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
606 return false;
607 }
608
609 IWL_DEBUG_SCAN(mvm, "Sending Scheduled scan without filtering\n");
610
611 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_ENABLED;
612 return true;
613}
614
615static int iwl_mvm_lmac_scan_abort(struct iwl_mvm *mvm)
616{
617 int ret;
618 struct iwl_host_cmd cmd = {
619 .id = SCAN_OFFLOAD_ABORT_CMD,
620 };
621 u32 status = CAN_ABORT_STATUS;
622
623 ret = iwl_mvm_send_cmd_status(mvm, &cmd, &status);
624 if (ret)
625 return ret;
626
627 if (status != CAN_ABORT_STATUS) {
628
629
630
631
632
633
634
635 IWL_DEBUG_SCAN(mvm, "SCAN OFFLOAD ABORT ret %d.\n", status);
636 ret = -ENOENT;
637 }
638
639 return ret;
640}
641
642static void iwl_mvm_scan_fill_tx_cmd(struct iwl_mvm *mvm,
643 struct iwl_scan_req_tx_cmd *tx_cmd,
644 bool no_cck)
645{
646 tx_cmd[0].tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL |
647 TX_CMD_FLG_BT_DIS);
648 tx_cmd[0].rate_n_flags = iwl_mvm_scan_rate_n_flags(mvm,
649 NL80211_BAND_2GHZ,
650 no_cck);
651
652 if (iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
653 ADD_STA,
654 0) < 12) {
655 tx_cmd[0].sta_id = mvm->aux_sta.sta_id;
656 tx_cmd[1].sta_id = mvm->aux_sta.sta_id;
657
658
659
660
661
662 } else {
663 tx_cmd[0].sta_id = 0xff;
664 tx_cmd[1].sta_id = 0xff;
665 }
666
667 tx_cmd[1].tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL |
668 TX_CMD_FLG_BT_DIS);
669
670 tx_cmd[1].rate_n_flags = iwl_mvm_scan_rate_n_flags(mvm,
671 NL80211_BAND_5GHZ,
672 no_cck);
673}
674
675static void
676iwl_mvm_lmac_scan_cfg_channels(struct iwl_mvm *mvm,
677 struct ieee80211_channel **channels,
678 int n_channels, u32 ssid_bitmap,
679 struct iwl_scan_req_lmac *cmd)
680{
681 struct iwl_scan_channel_cfg_lmac *channel_cfg = (void *)&cmd->data;
682 int i;
683
684 for (i = 0; i < n_channels; i++) {
685 channel_cfg[i].channel_num =
686 cpu_to_le16(channels[i]->hw_value);
687 channel_cfg[i].iter_count = cpu_to_le16(1);
688 channel_cfg[i].iter_interval = 0;
689 channel_cfg[i].flags =
690 cpu_to_le32(IWL_UNIFIED_SCAN_CHANNEL_PARTIAL |
691 ssid_bitmap);
692 }
693}
694
695static u8 *iwl_mvm_copy_and_insert_ds_elem(struct iwl_mvm *mvm, const u8 *ies,
696 size_t len, u8 *const pos)
697{
698 static const u8 before_ds_params[] = {
699 WLAN_EID_SSID,
700 WLAN_EID_SUPP_RATES,
701 WLAN_EID_REQUEST,
702 WLAN_EID_EXT_SUPP_RATES,
703 };
704 size_t offs;
705 u8 *newpos = pos;
706
707 if (!iwl_mvm_rrm_scan_needed(mvm)) {
708 memcpy(newpos, ies, len);
709 return newpos + len;
710 }
711
712 offs = ieee80211_ie_split(ies, len,
713 before_ds_params,
714 ARRAY_SIZE(before_ds_params),
715 0);
716
717 memcpy(newpos, ies, offs);
718 newpos += offs;
719
720
721 *newpos++ = WLAN_EID_DS_PARAMS;
722 *newpos++ = 1;
723 *newpos++ = 0;
724
725 memcpy(newpos, ies + offs, len - offs);
726 newpos += len - offs;
727
728 return newpos;
729}
730
731#define WFA_TPC_IE_LEN 9
732
733static void iwl_mvm_add_tpc_report_ie(u8 *pos)
734{
735 pos[0] = WLAN_EID_VENDOR_SPECIFIC;
736 pos[1] = WFA_TPC_IE_LEN - 2;
737 pos[2] = (WLAN_OUI_MICROSOFT >> 16) & 0xff;
738 pos[3] = (WLAN_OUI_MICROSOFT >> 8) & 0xff;
739 pos[4] = WLAN_OUI_MICROSOFT & 0xff;
740 pos[5] = WLAN_OUI_TYPE_MICROSOFT_TPC;
741 pos[6] = 0;
742
743 pos[7] = 0;
744 pos[8] = 0;
745}
746
747static void
748iwl_mvm_build_scan_probe(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
749 struct ieee80211_scan_ies *ies,
750 struct iwl_mvm_scan_params *params)
751{
752 struct ieee80211_mgmt *frame = (void *)params->preq.buf;
753 u8 *pos, *newpos;
754 const u8 *mac_addr = params->flags & NL80211_SCAN_FLAG_RANDOM_ADDR ?
755 params->mac_addr : NULL;
756
757
758
759
760
761
762
763 if (mac_addr)
764 get_random_mask_addr(frame->sa, mac_addr,
765 params->mac_addr_mask);
766 else
767 memcpy(frame->sa, vif->addr, ETH_ALEN);
768
769 frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
770 eth_broadcast_addr(frame->da);
771 eth_broadcast_addr(frame->bssid);
772 frame->seq_ctrl = 0;
773
774 pos = frame->u.probe_req.variable;
775 *pos++ = WLAN_EID_SSID;
776 *pos++ = 0;
777
778 params->preq.mac_header.offset = 0;
779 params->preq.mac_header.len = cpu_to_le16(24 + 2);
780
781
782 newpos = iwl_mvm_copy_and_insert_ds_elem(mvm,
783 ies->ies[NL80211_BAND_2GHZ],
784 ies->len[NL80211_BAND_2GHZ],
785 pos);
786 params->preq.band_data[0].offset = cpu_to_le16(pos - params->preq.buf);
787 params->preq.band_data[0].len = cpu_to_le16(newpos - pos);
788 pos = newpos;
789
790 memcpy(pos, ies->ies[NL80211_BAND_5GHZ],
791 ies->len[NL80211_BAND_5GHZ]);
792 params->preq.band_data[1].offset = cpu_to_le16(pos - params->preq.buf);
793 params->preq.band_data[1].len =
794 cpu_to_le16(ies->len[NL80211_BAND_5GHZ]);
795 pos += ies->len[NL80211_BAND_5GHZ];
796
797 memcpy(pos, ies->ies[NL80211_BAND_6GHZ],
798 ies->len[NL80211_BAND_6GHZ]);
799 params->preq.band_data[2].offset = cpu_to_le16(pos - params->preq.buf);
800 params->preq.band_data[2].len =
801 cpu_to_le16(ies->len[NL80211_BAND_6GHZ]);
802 pos += ies->len[NL80211_BAND_6GHZ];
803 memcpy(pos, ies->common_ies, ies->common_ie_len);
804 params->preq.common_data.offset = cpu_to_le16(pos - params->preq.buf);
805
806 if (iwl_mvm_rrm_scan_needed(mvm) &&
807 !fw_has_capa(&mvm->fw->ucode_capa,
808 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) {
809 iwl_mvm_add_tpc_report_ie(pos + ies->common_ie_len);
810 params->preq.common_data.len = cpu_to_le16(ies->common_ie_len +
811 WFA_TPC_IE_LEN);
812 } else {
813 params->preq.common_data.len = cpu_to_le16(ies->common_ie_len);
814 }
815}
816
817static void iwl_mvm_scan_lmac_dwell(struct iwl_mvm *mvm,
818 struct iwl_scan_req_lmac *cmd,
819 struct iwl_mvm_scan_params *params)
820{
821 cmd->active_dwell = IWL_SCAN_DWELL_ACTIVE;
822 cmd->passive_dwell = IWL_SCAN_DWELL_PASSIVE;
823 cmd->fragmented_dwell = IWL_SCAN_DWELL_FRAGMENTED;
824 cmd->extended_dwell = IWL_SCAN_DWELL_EXTENDED;
825 cmd->max_out_time = cpu_to_le32(scan_timing[params->type].max_out_time);
826 cmd->suspend_time = cpu_to_le32(scan_timing[params->type].suspend_time);
827 cmd->scan_prio = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
828}
829
830static inline bool iwl_mvm_scan_fits(struct iwl_mvm *mvm, int n_ssids,
831 struct ieee80211_scan_ies *ies,
832 int n_channels)
833{
834 return ((n_ssids <= PROBE_OPTION_MAX) &&
835 (n_channels <= mvm->fw->ucode_capa.n_scan_channels) &
836 (ies->common_ie_len +
837 ies->len[NL80211_BAND_2GHZ] +
838 ies->len[NL80211_BAND_5GHZ] <=
839 iwl_mvm_max_scan_ie_fw_cmd_room(mvm)));
840}
841
842static inline bool iwl_mvm_scan_use_ebs(struct iwl_mvm *mvm,
843 struct ieee80211_vif *vif)
844{
845 const struct iwl_ucode_capabilities *capa = &mvm->fw->ucode_capa;
846 bool low_latency;
847
848 if (iwl_mvm_is_cdb_supported(mvm))
849 low_latency = iwl_mvm_low_latency_band(mvm, NL80211_BAND_5GHZ);
850 else
851 low_latency = iwl_mvm_low_latency(mvm);
852
853
854
855
856
857
858
859
860
861 return ((capa->flags & IWL_UCODE_TLV_FLAGS_EBS_SUPPORT) &&
862 mvm->last_ebs_successful && IWL_MVM_ENABLE_EBS &&
863 vif->type != NL80211_IFTYPE_P2P_DEVICE &&
864 (!low_latency || iwl_mvm_is_frag_ebs_supported(mvm)));
865}
866
867static inline bool iwl_mvm_is_regular_scan(struct iwl_mvm_scan_params *params)
868{
869 return params->n_scan_plans == 1 &&
870 params->scan_plans[0].iterations == 1;
871}
872
873static bool iwl_mvm_is_scan_fragmented(enum iwl_mvm_scan_type type)
874{
875 return (type == IWL_SCAN_TYPE_FRAGMENTED ||
876 type == IWL_SCAN_TYPE_FAST_BALANCE);
877}
878
879static int iwl_mvm_scan_lmac_flags(struct iwl_mvm *mvm,
880 struct iwl_mvm_scan_params *params,
881 struct ieee80211_vif *vif)
882{
883 int flags = 0;
884
885 if (params->n_ssids == 0)
886 flags |= IWL_MVM_LMAC_SCAN_FLAG_PASSIVE;
887
888 if (params->n_ssids == 1 && params->ssids[0].ssid_len != 0)
889 flags |= IWL_MVM_LMAC_SCAN_FLAG_PRE_CONNECTION;
890
891 if (iwl_mvm_is_scan_fragmented(params->type))
892 flags |= IWL_MVM_LMAC_SCAN_FLAG_FRAGMENTED;
893
894 if (iwl_mvm_rrm_scan_needed(mvm) &&
895 fw_has_capa(&mvm->fw->ucode_capa,
896 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
897 flags |= IWL_MVM_LMAC_SCAN_FLAGS_RRM_ENABLED;
898
899 if (params->pass_all)
900 flags |= IWL_MVM_LMAC_SCAN_FLAG_PASS_ALL;
901 else
902 flags |= IWL_MVM_LMAC_SCAN_FLAG_MATCH;
903
904#ifdef CONFIG_IWLWIFI_DEBUGFS
905 if (mvm->scan_iter_notif_enabled)
906 flags |= IWL_MVM_LMAC_SCAN_FLAG_ITER_COMPLETE;
907#endif
908
909 if (mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_ENABLED)
910 flags |= IWL_MVM_LMAC_SCAN_FLAG_ITER_COMPLETE;
911
912 if (iwl_mvm_is_regular_scan(params) &&
913 vif->type != NL80211_IFTYPE_P2P_DEVICE &&
914 !iwl_mvm_is_scan_fragmented(params->type))
915 flags |= IWL_MVM_LMAC_SCAN_FLAG_EXTENDED_DWELL;
916
917 return flags;
918}
919
920static void
921iwl_mvm_scan_set_legacy_probe_req(struct iwl_scan_probe_req_v1 *p_req,
922 struct iwl_scan_probe_req *src_p_req)
923{
924 int i;
925
926 p_req->mac_header = src_p_req->mac_header;
927 for (i = 0; i < SCAN_NUM_BAND_PROBE_DATA_V_1; i++)
928 p_req->band_data[i] = src_p_req->band_data[i];
929 p_req->common_data = src_p_req->common_data;
930 memcpy(p_req->buf, src_p_req->buf, sizeof(p_req->buf));
931}
932
933static int iwl_mvm_scan_lmac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
934 struct iwl_mvm_scan_params *params)
935{
936 struct iwl_scan_req_lmac *cmd = mvm->scan_cmd;
937 struct iwl_scan_probe_req_v1 *preq =
938 (void *)(cmd->data + sizeof(struct iwl_scan_channel_cfg_lmac) *
939 mvm->fw->ucode_capa.n_scan_channels);
940 u32 ssid_bitmap = 0;
941 int i;
942 u8 band;
943
944 if (WARN_ON(params->n_scan_plans > IWL_MAX_SCHED_SCAN_PLANS))
945 return -EINVAL;
946
947 iwl_mvm_scan_lmac_dwell(mvm, cmd, params);
948
949 cmd->rx_chain_select = iwl_mvm_scan_rx_chain(mvm);
950 cmd->iter_num = cpu_to_le32(1);
951 cmd->n_channels = (u8)params->n_channels;
952
953 cmd->delay = cpu_to_le32(params->delay);
954
955 cmd->scan_flags = cpu_to_le32(iwl_mvm_scan_lmac_flags(mvm, params,
956 vif));
957
958 band = iwl_mvm_phy_band_from_nl80211(params->channels[0]->band);
959 cmd->flags = cpu_to_le32(band);
960 cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP |
961 MAC_FILTER_IN_BEACON);
962 iwl_mvm_scan_fill_tx_cmd(mvm, cmd->tx_cmd, params->no_cck);
963 iwl_scan_build_ssids(params, cmd->direct_scan, &ssid_bitmap);
964
965
966 ssid_bitmap <<= 1;
967
968 for (i = 0; i < params->n_scan_plans; i++) {
969 struct cfg80211_sched_scan_plan *scan_plan =
970 ¶ms->scan_plans[i];
971
972 cmd->schedule[i].delay =
973 cpu_to_le16(scan_plan->interval);
974 cmd->schedule[i].iterations = scan_plan->iterations;
975 cmd->schedule[i].full_scan_mul = 1;
976 }
977
978
979
980
981
982
983
984 if (!cmd->schedule[i - 1].iterations)
985 cmd->schedule[i - 1].iterations = 0xff;
986
987 if (iwl_mvm_scan_use_ebs(mvm, vif)) {
988 cmd->channel_opt[0].flags =
989 cpu_to_le16(IWL_SCAN_CHANNEL_FLAG_EBS |
990 IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
991 IWL_SCAN_CHANNEL_FLAG_CACHE_ADD);
992 cmd->channel_opt[0].non_ebs_ratio =
993 cpu_to_le16(IWL_DENSE_EBS_SCAN_RATIO);
994 cmd->channel_opt[1].flags =
995 cpu_to_le16(IWL_SCAN_CHANNEL_FLAG_EBS |
996 IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
997 IWL_SCAN_CHANNEL_FLAG_CACHE_ADD);
998 cmd->channel_opt[1].non_ebs_ratio =
999 cpu_to_le16(IWL_SPARSE_EBS_SCAN_RATIO);
1000 }
1001
1002 iwl_mvm_lmac_scan_cfg_channels(mvm, params->channels,
1003 params->n_channels, ssid_bitmap, cmd);
1004
1005 iwl_mvm_scan_set_legacy_probe_req(preq, ¶ms->preq);
1006
1007 return 0;
1008}
1009
1010static int rate_to_scan_rate_flag(unsigned int rate)
1011{
1012 static const int rate_to_scan_rate[IWL_RATE_COUNT] = {
1013 [IWL_RATE_1M_INDEX] = SCAN_CONFIG_RATE_1M,
1014 [IWL_RATE_2M_INDEX] = SCAN_CONFIG_RATE_2M,
1015 [IWL_RATE_5M_INDEX] = SCAN_CONFIG_RATE_5M,
1016 [IWL_RATE_11M_INDEX] = SCAN_CONFIG_RATE_11M,
1017 [IWL_RATE_6M_INDEX] = SCAN_CONFIG_RATE_6M,
1018 [IWL_RATE_9M_INDEX] = SCAN_CONFIG_RATE_9M,
1019 [IWL_RATE_12M_INDEX] = SCAN_CONFIG_RATE_12M,
1020 [IWL_RATE_18M_INDEX] = SCAN_CONFIG_RATE_18M,
1021 [IWL_RATE_24M_INDEX] = SCAN_CONFIG_RATE_24M,
1022 [IWL_RATE_36M_INDEX] = SCAN_CONFIG_RATE_36M,
1023 [IWL_RATE_48M_INDEX] = SCAN_CONFIG_RATE_48M,
1024 [IWL_RATE_54M_INDEX] = SCAN_CONFIG_RATE_54M,
1025 };
1026
1027 return rate_to_scan_rate[rate];
1028}
1029
1030static __le32 iwl_mvm_scan_config_rates(struct iwl_mvm *mvm)
1031{
1032 struct ieee80211_supported_band *band;
1033 unsigned int rates = 0;
1034 int i;
1035
1036 band = &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
1037 for (i = 0; i < band->n_bitrates; i++)
1038 rates |= rate_to_scan_rate_flag(band->bitrates[i].hw_value);
1039 band = &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
1040 for (i = 0; i < band->n_bitrates; i++)
1041 rates |= rate_to_scan_rate_flag(band->bitrates[i].hw_value);
1042
1043
1044 rates |= SCAN_CONFIG_SUPPORTED_RATE(rates);
1045
1046 return cpu_to_le32(rates);
1047}
1048
1049static void iwl_mvm_fill_scan_dwell(struct iwl_mvm *mvm,
1050 struct iwl_scan_dwell *dwell)
1051{
1052 dwell->active = IWL_SCAN_DWELL_ACTIVE;
1053 dwell->passive = IWL_SCAN_DWELL_PASSIVE;
1054 dwell->fragmented = IWL_SCAN_DWELL_FRAGMENTED;
1055 dwell->extended = IWL_SCAN_DWELL_EXTENDED;
1056}
1057
1058static void iwl_mvm_fill_channels(struct iwl_mvm *mvm, u8 *channels,
1059 u32 max_channels)
1060{
1061 struct ieee80211_supported_band *band;
1062 int i, j = 0;
1063
1064 band = &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
1065 for (i = 0; i < band->n_channels && j < max_channels; i++, j++)
1066 channels[j] = band->channels[i].hw_value;
1067 band = &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
1068 for (i = 0; i < band->n_channels && j < max_channels; i++, j++)
1069 channels[j] = band->channels[i].hw_value;
1070}
1071
1072static void iwl_mvm_fill_scan_config_v1(struct iwl_mvm *mvm, void *config,
1073 u32 flags, u8 channel_flags,
1074 u32 max_channels)
1075{
1076 enum iwl_mvm_scan_type type = iwl_mvm_get_scan_type(mvm, NULL);
1077 struct iwl_scan_config_v1 *cfg = config;
1078
1079 cfg->flags = cpu_to_le32(flags);
1080 cfg->tx_chains = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm));
1081 cfg->rx_chains = cpu_to_le32(iwl_mvm_scan_rx_ant(mvm));
1082 cfg->legacy_rates = iwl_mvm_scan_config_rates(mvm);
1083 cfg->out_of_channel_time = cpu_to_le32(scan_timing[type].max_out_time);
1084 cfg->suspend_time = cpu_to_le32(scan_timing[type].suspend_time);
1085
1086 iwl_mvm_fill_scan_dwell(mvm, &cfg->dwell);
1087
1088 memcpy(&cfg->mac_addr, &mvm->addresses[0].addr, ETH_ALEN);
1089
1090
1091 WARN_ON_ONCE(iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
1092 ADD_STA, 0) >= 12);
1093
1094 cfg->bcast_sta_id = mvm->aux_sta.sta_id;
1095 cfg->channel_flags = channel_flags;
1096
1097 iwl_mvm_fill_channels(mvm, cfg->channel_array, max_channels);
1098}
1099
1100static void iwl_mvm_fill_scan_config_v2(struct iwl_mvm *mvm, void *config,
1101 u32 flags, u8 channel_flags,
1102 u32 max_channels)
1103{
1104 struct iwl_scan_config_v2 *cfg = config;
1105
1106 cfg->flags = cpu_to_le32(flags);
1107 cfg->tx_chains = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm));
1108 cfg->rx_chains = cpu_to_le32(iwl_mvm_scan_rx_ant(mvm));
1109 cfg->legacy_rates = iwl_mvm_scan_config_rates(mvm);
1110
1111 if (iwl_mvm_is_cdb_supported(mvm)) {
1112 enum iwl_mvm_scan_type lb_type, hb_type;
1113
1114 lb_type = iwl_mvm_get_scan_type_band(mvm, NULL,
1115 NL80211_BAND_2GHZ);
1116 hb_type = iwl_mvm_get_scan_type_band(mvm, NULL,
1117 NL80211_BAND_5GHZ);
1118
1119 cfg->out_of_channel_time[SCAN_LB_LMAC_IDX] =
1120 cpu_to_le32(scan_timing[lb_type].max_out_time);
1121 cfg->suspend_time[SCAN_LB_LMAC_IDX] =
1122 cpu_to_le32(scan_timing[lb_type].suspend_time);
1123
1124 cfg->out_of_channel_time[SCAN_HB_LMAC_IDX] =
1125 cpu_to_le32(scan_timing[hb_type].max_out_time);
1126 cfg->suspend_time[SCAN_HB_LMAC_IDX] =
1127 cpu_to_le32(scan_timing[hb_type].suspend_time);
1128 } else {
1129 enum iwl_mvm_scan_type type =
1130 iwl_mvm_get_scan_type(mvm, NULL);
1131
1132 cfg->out_of_channel_time[SCAN_LB_LMAC_IDX] =
1133 cpu_to_le32(scan_timing[type].max_out_time);
1134 cfg->suspend_time[SCAN_LB_LMAC_IDX] =
1135 cpu_to_le32(scan_timing[type].suspend_time);
1136 }
1137
1138 iwl_mvm_fill_scan_dwell(mvm, &cfg->dwell);
1139
1140 memcpy(&cfg->mac_addr, &mvm->addresses[0].addr, ETH_ALEN);
1141
1142
1143 WARN_ON_ONCE(iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
1144 ADD_STA, 0) >= 12);
1145
1146 cfg->bcast_sta_id = mvm->aux_sta.sta_id;
1147 cfg->channel_flags = channel_flags;
1148
1149 iwl_mvm_fill_channels(mvm, cfg->channel_array, max_channels);
1150}
1151
1152static int iwl_mvm_legacy_config_scan(struct iwl_mvm *mvm)
1153{
1154 void *cfg;
1155 int ret, cmd_size;
1156 struct iwl_host_cmd cmd = {
1157 .id = iwl_cmd_id(SCAN_CFG_CMD, IWL_ALWAYS_LONG_GROUP, 0),
1158 };
1159 enum iwl_mvm_scan_type type;
1160 enum iwl_mvm_scan_type hb_type = IWL_SCAN_TYPE_NOT_SET;
1161 int num_channels =
1162 mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels +
1163 mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels;
1164 u32 flags;
1165 u8 channel_flags;
1166
1167 if (WARN_ON(num_channels > mvm->fw->ucode_capa.n_scan_channels))
1168 num_channels = mvm->fw->ucode_capa.n_scan_channels;
1169
1170 if (iwl_mvm_is_cdb_supported(mvm)) {
1171 type = iwl_mvm_get_scan_type_band(mvm, NULL,
1172 NL80211_BAND_2GHZ);
1173 hb_type = iwl_mvm_get_scan_type_band(mvm, NULL,
1174 NL80211_BAND_5GHZ);
1175 if (type == mvm->scan_type && hb_type == mvm->hb_scan_type)
1176 return 0;
1177 } else {
1178 type = iwl_mvm_get_scan_type(mvm, NULL);
1179 if (type == mvm->scan_type)
1180 return 0;
1181 }
1182
1183 if (iwl_mvm_cdb_scan_api(mvm))
1184 cmd_size = sizeof(struct iwl_scan_config_v2);
1185 else
1186 cmd_size = sizeof(struct iwl_scan_config_v1);
1187 cmd_size += mvm->fw->ucode_capa.n_scan_channels;
1188
1189 cfg = kzalloc(cmd_size, GFP_KERNEL);
1190 if (!cfg)
1191 return -ENOMEM;
1192
1193 flags = SCAN_CONFIG_FLAG_ACTIVATE |
1194 SCAN_CONFIG_FLAG_ALLOW_CHUB_REQS |
1195 SCAN_CONFIG_FLAG_SET_TX_CHAINS |
1196 SCAN_CONFIG_FLAG_SET_RX_CHAINS |
1197 SCAN_CONFIG_FLAG_SET_AUX_STA_ID |
1198 SCAN_CONFIG_FLAG_SET_ALL_TIMES |
1199 SCAN_CONFIG_FLAG_SET_LEGACY_RATES |
1200 SCAN_CONFIG_FLAG_SET_MAC_ADDR |
1201 SCAN_CONFIG_FLAG_SET_CHANNEL_FLAGS |
1202 SCAN_CONFIG_N_CHANNELS(num_channels) |
1203 (iwl_mvm_is_scan_fragmented(type) ?
1204 SCAN_CONFIG_FLAG_SET_FRAGMENTED :
1205 SCAN_CONFIG_FLAG_CLEAR_FRAGMENTED);
1206
1207 channel_flags = IWL_CHANNEL_FLAG_EBS |
1208 IWL_CHANNEL_FLAG_ACCURATE_EBS |
1209 IWL_CHANNEL_FLAG_EBS_ADD |
1210 IWL_CHANNEL_FLAG_PRE_SCAN_PASSIVE2ACTIVE;
1211
1212
1213
1214
1215
1216 if (iwl_mvm_cdb_scan_api(mvm)) {
1217 if (iwl_mvm_is_cdb_supported(mvm))
1218 flags |= (iwl_mvm_is_scan_fragmented(hb_type)) ?
1219 SCAN_CONFIG_FLAG_SET_LMAC2_FRAGMENTED :
1220 SCAN_CONFIG_FLAG_CLEAR_LMAC2_FRAGMENTED;
1221 iwl_mvm_fill_scan_config_v2(mvm, cfg, flags, channel_flags,
1222 num_channels);
1223 } else {
1224 iwl_mvm_fill_scan_config_v1(mvm, cfg, flags, channel_flags,
1225 num_channels);
1226 }
1227
1228 cmd.data[0] = cfg;
1229 cmd.len[0] = cmd_size;
1230 cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
1231
1232 IWL_DEBUG_SCAN(mvm, "Sending UMAC scan config\n");
1233
1234 ret = iwl_mvm_send_cmd(mvm, &cmd);
1235 if (!ret) {
1236 mvm->scan_type = type;
1237 mvm->hb_scan_type = hb_type;
1238 }
1239
1240 kfree(cfg);
1241 return ret;
1242}
1243
1244int iwl_mvm_config_scan(struct iwl_mvm *mvm)
1245{
1246 struct iwl_scan_config cfg;
1247 struct iwl_host_cmd cmd = {
1248 .id = iwl_cmd_id(SCAN_CFG_CMD, IWL_ALWAYS_LONG_GROUP, 0),
1249 .len[0] = sizeof(cfg),
1250 .data[0] = &cfg,
1251 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1252 };
1253
1254 if (!iwl_mvm_is_reduced_config_scan_supported(mvm))
1255 return iwl_mvm_legacy_config_scan(mvm);
1256
1257 memset(&cfg, 0, sizeof(cfg));
1258
1259 if (iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
1260 ADD_STA, 0) < 12) {
1261 cfg.bcast_sta_id = mvm->aux_sta.sta_id;
1262 } else if (iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
1263 SCAN_CFG_CMD, 0) < 5) {
1264
1265
1266
1267
1268 cfg.bcast_sta_id = 0xff;
1269 }
1270
1271 cfg.tx_chains = cpu_to_le32(iwl_mvm_get_valid_tx_ant(mvm));
1272 cfg.rx_chains = cpu_to_le32(iwl_mvm_scan_rx_ant(mvm));
1273
1274 IWL_DEBUG_SCAN(mvm, "Sending UMAC scan config\n");
1275
1276 return iwl_mvm_send_cmd(mvm, &cmd);
1277}
1278
1279static int iwl_mvm_scan_uid_by_status(struct iwl_mvm *mvm, int status)
1280{
1281 int i;
1282
1283 for (i = 0; i < mvm->max_scans; i++)
1284 if (mvm->scan_uid_status[i] == status)
1285 return i;
1286
1287 return -ENOENT;
1288}
1289
1290static void iwl_mvm_scan_umac_dwell(struct iwl_mvm *mvm,
1291 struct iwl_scan_req_umac *cmd,
1292 struct iwl_mvm_scan_params *params)
1293{
1294 struct iwl_mvm_scan_timing_params *timing, *hb_timing;
1295 u8 active_dwell, passive_dwell;
1296
1297 timing = &scan_timing[params->type];
1298 active_dwell = IWL_SCAN_DWELL_ACTIVE;
1299 passive_dwell = IWL_SCAN_DWELL_PASSIVE;
1300
1301 if (iwl_mvm_is_adaptive_dwell_supported(mvm)) {
1302 cmd->v7.adwell_default_n_aps_social =
1303 IWL_SCAN_ADWELL_DEFAULT_N_APS_SOCIAL;
1304 cmd->v7.adwell_default_n_aps =
1305 IWL_SCAN_ADWELL_DEFAULT_LB_N_APS;
1306
1307 if (iwl_mvm_is_adwell_hb_ap_num_supported(mvm))
1308 cmd->v9.adwell_default_hb_n_aps =
1309 IWL_SCAN_ADWELL_DEFAULT_HB_N_APS;
1310
1311
1312 if (IWL_MVM_ADWELL_MAX_BUDGET)
1313 cmd->v7.adwell_max_budget =
1314 cpu_to_le16(IWL_MVM_ADWELL_MAX_BUDGET);
1315 else if (params->ssids && params->ssids[0].ssid_len)
1316 cmd->v7.adwell_max_budget =
1317 cpu_to_le16(IWL_SCAN_ADWELL_MAX_BUDGET_DIRECTED_SCAN);
1318 else
1319 cmd->v7.adwell_max_budget =
1320 cpu_to_le16(IWL_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN);
1321
1322 cmd->v7.scan_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
1323 cmd->v7.max_out_time[SCAN_LB_LMAC_IDX] =
1324 cpu_to_le32(timing->max_out_time);
1325 cmd->v7.suspend_time[SCAN_LB_LMAC_IDX] =
1326 cpu_to_le32(timing->suspend_time);
1327
1328 if (iwl_mvm_is_cdb_supported(mvm)) {
1329 hb_timing = &scan_timing[params->hb_type];
1330
1331 cmd->v7.max_out_time[SCAN_HB_LMAC_IDX] =
1332 cpu_to_le32(hb_timing->max_out_time);
1333 cmd->v7.suspend_time[SCAN_HB_LMAC_IDX] =
1334 cpu_to_le32(hb_timing->suspend_time);
1335 }
1336
1337 if (!iwl_mvm_is_adaptive_dwell_v2_supported(mvm)) {
1338 cmd->v7.active_dwell = active_dwell;
1339 cmd->v7.passive_dwell = passive_dwell;
1340 cmd->v7.fragmented_dwell = IWL_SCAN_DWELL_FRAGMENTED;
1341 } else {
1342 cmd->v8.active_dwell[SCAN_LB_LMAC_IDX] = active_dwell;
1343 cmd->v8.passive_dwell[SCAN_LB_LMAC_IDX] = passive_dwell;
1344 if (iwl_mvm_is_cdb_supported(mvm)) {
1345 cmd->v8.active_dwell[SCAN_HB_LMAC_IDX] =
1346 active_dwell;
1347 cmd->v8.passive_dwell[SCAN_HB_LMAC_IDX] =
1348 passive_dwell;
1349 }
1350 }
1351 } else {
1352 cmd->v1.extended_dwell = IWL_SCAN_DWELL_EXTENDED;
1353 cmd->v1.active_dwell = active_dwell;
1354 cmd->v1.passive_dwell = passive_dwell;
1355 cmd->v1.fragmented_dwell = IWL_SCAN_DWELL_FRAGMENTED;
1356
1357 if (iwl_mvm_is_cdb_supported(mvm)) {
1358 hb_timing = &scan_timing[params->hb_type];
1359
1360 cmd->v6.max_out_time[SCAN_HB_LMAC_IDX] =
1361 cpu_to_le32(hb_timing->max_out_time);
1362 cmd->v6.suspend_time[SCAN_HB_LMAC_IDX] =
1363 cpu_to_le32(hb_timing->suspend_time);
1364 }
1365
1366 if (iwl_mvm_cdb_scan_api(mvm)) {
1367 cmd->v6.scan_priority =
1368 cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
1369 cmd->v6.max_out_time[SCAN_LB_LMAC_IDX] =
1370 cpu_to_le32(timing->max_out_time);
1371 cmd->v6.suspend_time[SCAN_LB_LMAC_IDX] =
1372 cpu_to_le32(timing->suspend_time);
1373 } else {
1374 cmd->v1.scan_priority =
1375 cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
1376 cmd->v1.max_out_time =
1377 cpu_to_le32(timing->max_out_time);
1378 cmd->v1.suspend_time =
1379 cpu_to_le32(timing->suspend_time);
1380 }
1381 }
1382
1383 if (iwl_mvm_is_regular_scan(params))
1384 cmd->ooc_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
1385 else
1386 cmd->ooc_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_2);
1387}
1388
1389static u32 iwl_mvm_scan_umac_ooc_priority(struct iwl_mvm_scan_params *params)
1390{
1391 return iwl_mvm_is_regular_scan(params) ?
1392 IWL_SCAN_PRIORITY_EXT_6 :
1393 IWL_SCAN_PRIORITY_EXT_2;
1394}
1395
1396static void
1397iwl_mvm_scan_umac_dwell_v10(struct iwl_mvm *mvm,
1398 struct iwl_scan_general_params_v10 *general_params,
1399 struct iwl_mvm_scan_params *params)
1400{
1401 struct iwl_mvm_scan_timing_params *timing, *hb_timing;
1402 u8 active_dwell, passive_dwell;
1403
1404 timing = &scan_timing[params->type];
1405 active_dwell = IWL_SCAN_DWELL_ACTIVE;
1406 passive_dwell = IWL_SCAN_DWELL_PASSIVE;
1407
1408 general_params->adwell_default_social_chn =
1409 IWL_SCAN_ADWELL_DEFAULT_N_APS_SOCIAL;
1410 general_params->adwell_default_2g = IWL_SCAN_ADWELL_DEFAULT_LB_N_APS;
1411 general_params->adwell_default_5g = IWL_SCAN_ADWELL_DEFAULT_HB_N_APS;
1412
1413
1414 if (IWL_MVM_ADWELL_MAX_BUDGET)
1415 general_params->adwell_max_budget =
1416 cpu_to_le16(IWL_MVM_ADWELL_MAX_BUDGET);
1417 else if (params->ssids && params->ssids[0].ssid_len)
1418 general_params->adwell_max_budget =
1419 cpu_to_le16(IWL_SCAN_ADWELL_MAX_BUDGET_DIRECTED_SCAN);
1420 else
1421 general_params->adwell_max_budget =
1422 cpu_to_le16(IWL_SCAN_ADWELL_MAX_BUDGET_FULL_SCAN);
1423
1424 general_params->scan_priority = cpu_to_le32(IWL_SCAN_PRIORITY_EXT_6);
1425 general_params->max_out_of_time[SCAN_LB_LMAC_IDX] =
1426 cpu_to_le32(timing->max_out_time);
1427 general_params->suspend_time[SCAN_LB_LMAC_IDX] =
1428 cpu_to_le32(timing->suspend_time);
1429
1430 hb_timing = &scan_timing[params->hb_type];
1431
1432 general_params->max_out_of_time[SCAN_HB_LMAC_IDX] =
1433 cpu_to_le32(hb_timing->max_out_time);
1434 general_params->suspend_time[SCAN_HB_LMAC_IDX] =
1435 cpu_to_le32(hb_timing->suspend_time);
1436
1437 general_params->active_dwell[SCAN_LB_LMAC_IDX] = active_dwell;
1438 general_params->passive_dwell[SCAN_LB_LMAC_IDX] = passive_dwell;
1439 general_params->active_dwell[SCAN_HB_LMAC_IDX] = active_dwell;
1440 general_params->passive_dwell[SCAN_HB_LMAC_IDX] = passive_dwell;
1441}
1442
1443struct iwl_mvm_scan_channel_segment {
1444 u8 start_idx;
1445 u8 end_idx;
1446 u8 first_channel_id;
1447 u8 last_channel_id;
1448 u8 channel_spacing_shift;
1449 u8 band;
1450};
1451
1452static const struct iwl_mvm_scan_channel_segment scan_channel_segments[] = {
1453 {
1454 .start_idx = 0,
1455 .end_idx = 13,
1456 .first_channel_id = 1,
1457 .last_channel_id = 14,
1458 .channel_spacing_shift = 0,
1459 .band = PHY_BAND_24
1460 },
1461 {
1462 .start_idx = 14,
1463 .end_idx = 41,
1464 .first_channel_id = 36,
1465 .last_channel_id = 144,
1466 .channel_spacing_shift = 2,
1467 .band = PHY_BAND_5
1468 },
1469 {
1470 .start_idx = 42,
1471 .end_idx = 50,
1472 .first_channel_id = 149,
1473 .last_channel_id = 181,
1474 .channel_spacing_shift = 2,
1475 .band = PHY_BAND_5
1476 },
1477 {
1478 .start_idx = 51,
1479 .end_idx = 111,
1480 .first_channel_id = 1,
1481 .last_channel_id = 241,
1482 .channel_spacing_shift = 2,
1483 .band = PHY_BAND_6
1484 },
1485};
1486
1487static int iwl_mvm_scan_ch_and_band_to_idx(u8 channel_id, u8 band)
1488{
1489 int i, index;
1490
1491 if (!channel_id)
1492 return -EINVAL;
1493
1494 for (i = 0; i < ARRAY_SIZE(scan_channel_segments); i++) {
1495 const struct iwl_mvm_scan_channel_segment *ch_segment =
1496 &scan_channel_segments[i];
1497 u32 ch_offset;
1498
1499 if (ch_segment->band != band ||
1500 ch_segment->first_channel_id > channel_id ||
1501 ch_segment->last_channel_id < channel_id)
1502 continue;
1503
1504 ch_offset = (channel_id - ch_segment->first_channel_id) >>
1505 ch_segment->channel_spacing_shift;
1506
1507 index = scan_channel_segments[i].start_idx + ch_offset;
1508 if (index < IWL_SCAN_NUM_CHANNELS)
1509 return index;
1510
1511 break;
1512 }
1513
1514 return -EINVAL;
1515}
1516
1517static const u8 p2p_go_friendly_chs[] = {
1518 36, 40, 44, 48, 149, 153, 157, 161, 165,
1519};
1520
1521static const u8 social_chs[] = {
1522 1, 6, 11
1523};
1524
1525static void iwl_mvm_scan_ch_add_n_aps_override(enum nl80211_iftype vif_type,
1526 u8 ch_id, u8 band, u8 *ch_bitmap,
1527 size_t bitmap_n_entries)
1528{
1529 int i;
1530
1531 if (vif_type != NL80211_IFTYPE_P2P_DEVICE)
1532 return;
1533
1534 for (i = 0; i < ARRAY_SIZE(p2p_go_friendly_chs); i++) {
1535 if (p2p_go_friendly_chs[i] == ch_id) {
1536 int ch_idx, bitmap_idx;
1537
1538 ch_idx = iwl_mvm_scan_ch_and_band_to_idx(ch_id, band);
1539 if (ch_idx < 0)
1540 return;
1541
1542 bitmap_idx = ch_idx / 8;
1543 if (bitmap_idx >= bitmap_n_entries)
1544 return;
1545
1546 ch_idx = ch_idx % 8;
1547 ch_bitmap[bitmap_idx] |= BIT(ch_idx);
1548
1549 return;
1550 }
1551 }
1552}
1553
1554static u32 iwl_mvm_scan_ch_n_aps_flag(enum nl80211_iftype vif_type, u8 ch_id)
1555{
1556 int i;
1557 u32 flags = 0;
1558
1559 if (vif_type != NL80211_IFTYPE_P2P_DEVICE)
1560 goto out;
1561
1562 for (i = 0; i < ARRAY_SIZE(p2p_go_friendly_chs); i++) {
1563 if (p2p_go_friendly_chs[i] == ch_id) {
1564 flags |= IWL_SCAN_ADWELL_N_APS_GO_FRIENDLY_BIT;
1565 break;
1566 }
1567 }
1568
1569 if (flags)
1570 goto out;
1571
1572 for (i = 0; i < ARRAY_SIZE(social_chs); i++) {
1573 if (social_chs[i] == ch_id) {
1574 flags |= IWL_SCAN_ADWELL_N_APS_SOCIAL_CHS_BIT;
1575 break;
1576 }
1577 }
1578
1579out:
1580 return flags;
1581}
1582
1583static void
1584iwl_mvm_umac_scan_cfg_channels(struct iwl_mvm *mvm,
1585 struct ieee80211_channel **channels,
1586 int n_channels, u32 flags,
1587 struct iwl_scan_channel_cfg_umac *channel_cfg)
1588{
1589 int i;
1590
1591 for (i = 0; i < n_channels; i++) {
1592 channel_cfg[i].flags = cpu_to_le32(flags);
1593 channel_cfg[i].v1.channel_num = channels[i]->hw_value;
1594 if (iwl_mvm_is_scan_ext_chan_supported(mvm)) {
1595 enum nl80211_band band = channels[i]->band;
1596
1597 channel_cfg[i].v2.band =
1598 iwl_mvm_phy_band_from_nl80211(band);
1599 channel_cfg[i].v2.iter_count = 1;
1600 channel_cfg[i].v2.iter_interval = 0;
1601 } else {
1602 channel_cfg[i].v1.iter_count = 1;
1603 channel_cfg[i].v1.iter_interval = 0;
1604 }
1605 }
1606}
1607
1608static void
1609iwl_mvm_umac_scan_cfg_channels_v4(struct iwl_mvm *mvm,
1610 struct ieee80211_channel **channels,
1611 struct iwl_scan_channel_params_v4 *cp,
1612 int n_channels, u32 flags,
1613 enum nl80211_iftype vif_type)
1614{
1615 u8 *bitmap = cp->adwell_ch_override_bitmap;
1616 size_t bitmap_n_entries = ARRAY_SIZE(cp->adwell_ch_override_bitmap);
1617 int i;
1618
1619 for (i = 0; i < n_channels; i++) {
1620 enum nl80211_band band = channels[i]->band;
1621 struct iwl_scan_channel_cfg_umac *cfg =
1622 &cp->channel_config[i];
1623
1624 cfg->flags = cpu_to_le32(flags);
1625 cfg->v2.channel_num = channels[i]->hw_value;
1626 cfg->v2.band = iwl_mvm_phy_band_from_nl80211(band);
1627 cfg->v2.iter_count = 1;
1628 cfg->v2.iter_interval = 0;
1629
1630 iwl_mvm_scan_ch_add_n_aps_override(vif_type,
1631 cfg->v2.channel_num,
1632 cfg->v2.band, bitmap,
1633 bitmap_n_entries);
1634 }
1635}
1636
1637static void
1638iwl_mvm_umac_scan_cfg_channels_v6(struct iwl_mvm *mvm,
1639 struct ieee80211_channel **channels,
1640 struct iwl_scan_channel_params_v6 *cp,
1641 int n_channels, u32 flags,
1642 enum nl80211_iftype vif_type)
1643{
1644 int i;
1645
1646 for (i = 0; i < n_channels; i++) {
1647 enum nl80211_band band = channels[i]->band;
1648 struct iwl_scan_channel_cfg_umac *cfg = &cp->channel_config[i];
1649 u32 n_aps_flag =
1650 iwl_mvm_scan_ch_n_aps_flag(vif_type,
1651 cfg->v2.channel_num);
1652
1653 cfg->flags = cpu_to_le32(flags | n_aps_flag);
1654 cfg->v2.channel_num = channels[i]->hw_value;
1655 cfg->v2.band = iwl_mvm_phy_band_from_nl80211(band);
1656 if (cfg80211_channel_is_psc(channels[i]))
1657 cfg->flags = 0;
1658 cfg->v2.iter_count = 1;
1659 cfg->v2.iter_interval = 0;
1660 }
1661}
1662
1663static int
1664iwl_mvm_umac_scan_fill_6g_chan_list(struct iwl_mvm_scan_params *params,
1665 __le32 *cmd_short_ssid, u8 *cmd_bssid,
1666 u8 *scan_ssid_num, u8 *bssid_num)
1667{
1668 int j, idex_s = 0, idex_b = 0;
1669 struct cfg80211_scan_6ghz_params *scan_6ghz_params =
1670 params->scan_6ghz_params;
1671
1672 if (!params->n_6ghz_params) {
1673 for (j = 0; j < params->n_ssids; j++) {
1674 cmd_short_ssid[idex_s++] =
1675 cpu_to_le32(~crc32_le(~0, params->ssids[j].ssid,
1676 params->ssids[j].ssid_len));
1677 (*scan_ssid_num)++;
1678 }
1679 return 0;
1680 }
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690 for (j = 0; j < params->n_6ghz_params; j++) {
1691 int k;
1692
1693
1694 if (scan_6ghz_params[j].short_ssid_valid) {
1695 for (k = 0; k < idex_s; k++) {
1696 if (cmd_short_ssid[k] ==
1697 cpu_to_le32(scan_6ghz_params[j].short_ssid))
1698 break;
1699 }
1700
1701 if (k == idex_s && idex_s < SCAN_SHORT_SSID_MAX_SIZE) {
1702 cmd_short_ssid[idex_s++] =
1703 cpu_to_le32(scan_6ghz_params[j].short_ssid);
1704 (*scan_ssid_num)++;
1705 }
1706 }
1707
1708
1709 for (k = 0; k < idex_b; k++) {
1710 if (!memcmp(&cmd_bssid[ETH_ALEN * k],
1711 scan_6ghz_params[j].bssid, ETH_ALEN))
1712 break;
1713 }
1714
1715 if (k == idex_b && idex_b < SCAN_BSSID_MAX_SIZE) {
1716 memcpy(&cmd_bssid[ETH_ALEN * idex_b++],
1717 scan_6ghz_params[j].bssid, ETH_ALEN);
1718 (*bssid_num)++;
1719 }
1720 }
1721 return 0;
1722}
1723
1724
1725static void
1726iwl_mvm_umac_scan_cfg_channels_v6_6g(struct iwl_mvm_scan_params *params,
1727 u32 n_channels, __le32 *cmd_short_ssid,
1728 u8 *cmd_bssid, u8 scan_ssid_num,
1729 u8 bssid_num,
1730 struct iwl_scan_channel_params_v6 *cp,
1731 enum nl80211_iftype vif_type)
1732{
1733 struct iwl_scan_channel_cfg_umac *channel_cfg = cp->channel_config;
1734 int i;
1735 struct cfg80211_scan_6ghz_params *scan_6ghz_params =
1736 params->scan_6ghz_params;
1737
1738 for (i = 0; i < params->n_channels; i++) {
1739 struct iwl_scan_channel_cfg_umac *cfg =
1740 &cp->channel_config[i];
1741
1742 u32 s_ssid_bitmap = 0, bssid_bitmap = 0, flags = 0;
1743 u8 j, k, s_max = 0, b_max = 0, n_used_bssid_entries;
1744 bool force_passive, found = false,
1745 unsolicited_probe_on_chan = false, psc_no_listen = false;
1746
1747 cfg->v1.channel_num = params->channels[i]->hw_value;
1748 cfg->v2.band = 2;
1749 cfg->v2.iter_count = 1;
1750 cfg->v2.iter_interval = 0;
1751
1752
1753
1754
1755
1756
1757
1758
1759 n_used_bssid_entries = 3;
1760 for (j = 0; j < params->n_6ghz_params; j++) {
1761 if (!(scan_6ghz_params[j].channel_idx == i))
1762 continue;
1763
1764 found = false;
1765 unsolicited_probe_on_chan |=
1766 scan_6ghz_params[j].unsolicited_probe;
1767 psc_no_listen |= scan_6ghz_params[j].psc_no_listen;
1768
1769 for (k = 0; k < scan_ssid_num; k++) {
1770 if (!scan_6ghz_params[j].unsolicited_probe &&
1771 le32_to_cpu(cmd_short_ssid[k]) ==
1772 scan_6ghz_params[j].short_ssid) {
1773
1774 if (s_ssid_bitmap & BIT(k)) {
1775 found = true;
1776 break;
1777 }
1778
1779
1780
1781
1782
1783 if (n_used_bssid_entries >= 3) {
1784 s_ssid_bitmap |= BIT(k);
1785 s_max++;
1786 n_used_bssid_entries -= 3;
1787 found = true;
1788 break;
1789 }
1790 }
1791 }
1792
1793 if (found)
1794 continue;
1795
1796 for (k = 0; k < bssid_num; k++) {
1797 if (!memcmp(&cmd_bssid[ETH_ALEN * k],
1798 scan_6ghz_params[j].bssid,
1799 ETH_ALEN)) {
1800 if (!(bssid_bitmap & BIT(k))) {
1801 bssid_bitmap |= BIT(k);
1802 b_max++;
1803 n_used_bssid_entries++;
1804 }
1805 break;
1806 }
1807 }
1808 }
1809
1810 flags = bssid_bitmap | (s_ssid_bitmap << 16);
1811
1812 if (cfg80211_channel_is_psc(params->channels[i]) &&
1813 psc_no_listen)
1814 flags |= IWL_UHB_CHAN_CFG_FLAG_PSC_CHAN_NO_LISTEN;
1815
1816 if (unsolicited_probe_on_chan)
1817 flags |= IWL_UHB_CHAN_CFG_FLAG_UNSOLICITED_PROBE_RES;
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836 if (!iwl_mvm_is_scan_fragmented(params->type)) {
1837 if (!cfg80211_channel_is_psc(params->channels[i]) ||
1838 flags & IWL_UHB_CHAN_CFG_FLAG_PSC_CHAN_NO_LISTEN) {
1839 force_passive = (s_max > 3 || b_max > 9);
1840 force_passive |= (unsolicited_probe_on_chan &&
1841 (s_max > 2 || b_max > 6));
1842 } else {
1843 force_passive = (s_max > 2 || b_max > 6);
1844 }
1845 } else if (cfg80211_channel_is_psc(params->channels[i])) {
1846 force_passive = (s_max > 1 || b_max > 3);
1847 } else {
1848 force_passive = (s_max > 2 || b_max > 6);
1849 force_passive |= (unsolicited_probe_on_chan &&
1850 (s_max > 1 || b_max > 3));
1851 }
1852 if (force_passive ||
1853 (!flags && !cfg80211_channel_is_psc(params->channels[i])))
1854 flags |= IWL_UHB_CHAN_CFG_FLAG_FORCE_PASSIVE;
1855
1856 channel_cfg[i].flags |= cpu_to_le32(flags);
1857 }
1858}
1859
1860static u8 iwl_mvm_scan_umac_chan_flags_v2(struct iwl_mvm *mvm,
1861 struct iwl_mvm_scan_params *params,
1862 struct ieee80211_vif *vif)
1863{
1864 u8 flags = 0;
1865
1866 flags |= IWL_SCAN_CHANNEL_FLAG_ENABLE_CHAN_ORDER;
1867
1868 if (iwl_mvm_scan_use_ebs(mvm, vif))
1869 flags |= IWL_SCAN_CHANNEL_FLAG_EBS |
1870 IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
1871 IWL_SCAN_CHANNEL_FLAG_CACHE_ADD;
1872
1873
1874 if (iwl_mvm_is_scan_fragmented(params->hb_type))
1875 flags |= IWL_SCAN_CHANNEL_FLAG_EBS_FRAG;
1876
1877 return flags;
1878}
1879
1880static void iwl_mvm_scan_6ghz_passive_scan(struct iwl_mvm *mvm,
1881 struct iwl_mvm_scan_params *params,
1882 struct ieee80211_vif *vif)
1883{
1884 struct ieee80211_supported_band *sband =
1885 &mvm->nvm_data->bands[NL80211_BAND_6GHZ];
1886 u32 n_disabled, i;
1887
1888 params->enable_6ghz_passive = false;
1889
1890 if (params->scan_6ghz)
1891 return;
1892
1893 if (!fw_has_capa(&mvm->fw->ucode_capa,
1894 IWL_UCODE_TLV_CAPA_PASSIVE_6GHZ_SCAN)) {
1895 IWL_DEBUG_SCAN(mvm,
1896 "6GHz passive scan: Not supported by FW\n");
1897 return;
1898 }
1899
1900
1901 if (vif->type != NL80211_IFTYPE_STATION) {
1902 IWL_DEBUG_SCAN(mvm,
1903 "6GHz passive scan: not station interface\n");
1904 return;
1905 }
1906
1907
1908
1909
1910
1911 if (vif->bss_conf.assoc &&
1912 (time_before(mvm->last_reset_or_resume_time_jiffies +
1913 (IWL_MVM_6GHZ_PASSIVE_SCAN_ASSOC_TIMEOUT * HZ),
1914 jiffies))) {
1915 IWL_DEBUG_SCAN(mvm, "6GHz passive scan: associated\n");
1916 return;
1917 }
1918
1919
1920 if (time_after(mvm->last_6ghz_passive_scan_jiffies +
1921 (IWL_MVM_6GHZ_PASSIVE_SCAN_TIMEOUT * HZ), jiffies)) {
1922 IWL_DEBUG_SCAN(mvm,
1923 "6GHz passive scan: timeout did not expire\n");
1924 return;
1925 }
1926
1927
1928 if (params->n_channels < IWL_MVM_6GHZ_PASSIVE_SCAN_MIN_CHANS) {
1929 IWL_DEBUG_SCAN(mvm,
1930 "6GHz passive scan: not enough channels\n");
1931 return;
1932 }
1933
1934 for (i = 0; i < params->n_ssids; i++) {
1935 if (!params->ssids[i].ssid_len)
1936 break;
1937 }
1938
1939
1940 if (i == params->n_ssids) {
1941 IWL_DEBUG_SCAN(mvm,
1942 "6GHz passive scan: no wildcard SSID\n");
1943 return;
1944 }
1945
1946 if (!sband || !sband->n_channels) {
1947 IWL_DEBUG_SCAN(mvm,
1948 "6GHz passive scan: no 6GHz channels\n");
1949 return;
1950 }
1951
1952 for (i = 0, n_disabled = 0; i < sband->n_channels; i++) {
1953 if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED))
1954 n_disabled++;
1955 }
1956
1957
1958
1959
1960
1961 if (n_disabled != sband->n_channels) {
1962 IWL_DEBUG_SCAN(mvm,
1963 "6GHz passive scan: 6GHz channels enabled\n");
1964 return;
1965 }
1966
1967
1968 IWL_DEBUG_SCAN(mvm, "6GHz passive scan: can be enabled\n");
1969 params->enable_6ghz_passive = true;
1970}
1971
1972static u16 iwl_mvm_scan_umac_flags_v2(struct iwl_mvm *mvm,
1973 struct iwl_mvm_scan_params *params,
1974 struct ieee80211_vif *vif,
1975 int type)
1976{
1977 u16 flags = 0;
1978
1979 if (params->n_ssids == 0)
1980 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_FORCE_PASSIVE;
1981
1982 if (iwl_mvm_is_scan_fragmented(params->type))
1983 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_FRAGMENTED_LMAC1;
1984
1985 if (iwl_mvm_is_scan_fragmented(params->hb_type))
1986 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_FRAGMENTED_LMAC2;
1987
1988 if (params->pass_all)
1989 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_PASS_ALL;
1990 else
1991 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_MATCH;
1992
1993 if (!iwl_mvm_is_regular_scan(params))
1994 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_PERIODIC;
1995
1996 if (params->iter_notif ||
1997 mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_ENABLED)
1998 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_NTFY_ITER_COMPLETE;
1999
2000 if (IWL_MVM_ADWELL_ENABLE)
2001 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_ADAPTIVE_DWELL;
2002
2003 if (type == IWL_MVM_SCAN_SCHED || type == IWL_MVM_SCAN_NETDETECT)
2004 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_PREEMPTIVE;
2005
2006 if ((type == IWL_MVM_SCAN_SCHED || type == IWL_MVM_SCAN_NETDETECT) &&
2007 params->flags & NL80211_SCAN_FLAG_COLOCATED_6GHZ)
2008 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_TRIGGER_UHB_SCAN;
2009
2010 if (params->enable_6ghz_passive)
2011 flags |= IWL_UMAC_SCAN_GEN_FLAGS_V2_6GHZ_PASSIVE_SCAN;
2012
2013 return flags;
2014}
2015
2016static u16 iwl_mvm_scan_umac_flags(struct iwl_mvm *mvm,
2017 struct iwl_mvm_scan_params *params,
2018 struct ieee80211_vif *vif)
2019{
2020 u16 flags = 0;
2021
2022 if (params->n_ssids == 0)
2023 flags = IWL_UMAC_SCAN_GEN_FLAGS_PASSIVE;
2024
2025 if (params->n_ssids == 1 && params->ssids[0].ssid_len != 0)
2026 flags |= IWL_UMAC_SCAN_GEN_FLAGS_PRE_CONNECT;
2027
2028 if (iwl_mvm_is_scan_fragmented(params->type))
2029 flags |= IWL_UMAC_SCAN_GEN_FLAGS_FRAGMENTED;
2030
2031 if (iwl_mvm_is_cdb_supported(mvm) &&
2032 iwl_mvm_is_scan_fragmented(params->hb_type))
2033 flags |= IWL_UMAC_SCAN_GEN_FLAGS_LMAC2_FRAGMENTED;
2034
2035 if (iwl_mvm_rrm_scan_needed(mvm) &&
2036 fw_has_capa(&mvm->fw->ucode_capa,
2037 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
2038 flags |= IWL_UMAC_SCAN_GEN_FLAGS_RRM_ENABLED;
2039
2040 if (params->pass_all)
2041 flags |= IWL_UMAC_SCAN_GEN_FLAGS_PASS_ALL;
2042 else
2043 flags |= IWL_UMAC_SCAN_GEN_FLAGS_MATCH;
2044
2045 if (!iwl_mvm_is_regular_scan(params))
2046 flags |= IWL_UMAC_SCAN_GEN_FLAGS_PERIODIC;
2047
2048 if (params->iter_notif)
2049 flags |= IWL_UMAC_SCAN_GEN_FLAGS_ITER_COMPLETE;
2050
2051#ifdef CONFIG_IWLWIFI_DEBUGFS
2052 if (mvm->scan_iter_notif_enabled)
2053 flags |= IWL_UMAC_SCAN_GEN_FLAGS_ITER_COMPLETE;
2054#endif
2055
2056 if (mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_ENABLED)
2057 flags |= IWL_UMAC_SCAN_GEN_FLAGS_ITER_COMPLETE;
2058
2059 if (iwl_mvm_is_adaptive_dwell_supported(mvm) && IWL_MVM_ADWELL_ENABLE)
2060 flags |= IWL_UMAC_SCAN_GEN_FLAGS_ADAPTIVE_DWELL;
2061
2062
2063
2064
2065
2066
2067 if (iwl_mvm_is_regular_scan(params) &&
2068 vif->type != NL80211_IFTYPE_P2P_DEVICE &&
2069 !iwl_mvm_is_scan_fragmented(params->type) &&
2070 !iwl_mvm_is_adaptive_dwell_supported(mvm) &&
2071 !iwl_mvm_is_oce_supported(mvm))
2072 flags |= IWL_UMAC_SCAN_GEN_FLAGS_EXTENDED_DWELL;
2073
2074 if (iwl_mvm_is_oce_supported(mvm)) {
2075 if ((params->flags &
2076 NL80211_SCAN_FLAG_OCE_PROBE_REQ_HIGH_TX_RATE))
2077 flags |= IWL_UMAC_SCAN_GEN_FLAGS_PROB_REQ_HIGH_TX_RATE;
2078
2079
2080
2081
2082
2083 if ((params->flags &
2084 NL80211_SCAN_FLAG_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION) &&
2085 !WARN_ON_ONCE(!iwl_mvm_is_adaptive_dwell_supported(mvm)))
2086 flags |= IWL_UMAC_SCAN_GEN_FLAGS_PROB_REQ_DEFER_SUPP;
2087 if ((params->flags & NL80211_SCAN_FLAG_FILS_MAX_CHANNEL_TIME))
2088 flags |= IWL_UMAC_SCAN_GEN_FLAGS_MAX_CHNL_TIME;
2089 }
2090
2091 return flags;
2092}
2093
2094static int
2095iwl_mvm_fill_scan_sched_params(struct iwl_mvm_scan_params *params,
2096 struct iwl_scan_umac_schedule *schedule,
2097 __le16 *delay)
2098{
2099 int i;
2100 if (WARN_ON(!params->n_scan_plans ||
2101 params->n_scan_plans > IWL_MAX_SCHED_SCAN_PLANS))
2102 return -EINVAL;
2103
2104 for (i = 0; i < params->n_scan_plans; i++) {
2105 struct cfg80211_sched_scan_plan *scan_plan =
2106 ¶ms->scan_plans[i];
2107
2108 schedule[i].iter_count = scan_plan->iterations;
2109 schedule[i].interval =
2110 cpu_to_le16(scan_plan->interval);
2111 }
2112
2113
2114
2115
2116
2117
2118
2119 if (!schedule[params->n_scan_plans - 1].iter_count)
2120 schedule[params->n_scan_plans - 1].iter_count = 0xff;
2121
2122 *delay = cpu_to_le16(params->delay);
2123
2124 return 0;
2125}
2126
2127static int iwl_mvm_scan_umac(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2128 struct iwl_mvm_scan_params *params,
2129 int type, int uid)
2130{
2131 struct iwl_scan_req_umac *cmd = mvm->scan_cmd;
2132 struct iwl_scan_umac_chan_param *chan_param;
2133 void *cmd_data = iwl_mvm_get_scan_req_umac_data(mvm);
2134 void *sec_part = cmd_data + sizeof(struct iwl_scan_channel_cfg_umac) *
2135 mvm->fw->ucode_capa.n_scan_channels;
2136 struct iwl_scan_req_umac_tail_v2 *tail_v2 =
2137 (struct iwl_scan_req_umac_tail_v2 *)sec_part;
2138 struct iwl_scan_req_umac_tail_v1 *tail_v1;
2139 struct iwl_ssid_ie *direct_scan;
2140 int ret = 0;
2141 u32 ssid_bitmap = 0;
2142 u8 channel_flags = 0;
2143 u16 gen_flags;
2144 struct iwl_mvm_vif *scan_vif = iwl_mvm_vif_from_mac80211(vif);
2145
2146 chan_param = iwl_mvm_get_scan_req_umac_channel(mvm);
2147
2148 iwl_mvm_scan_umac_dwell(mvm, cmd, params);
2149
2150 mvm->scan_uid_status[uid] = type;
2151
2152 cmd->uid = cpu_to_le32(uid);
2153 gen_flags = iwl_mvm_scan_umac_flags(mvm, params, vif);
2154 cmd->general_flags = cpu_to_le16(gen_flags);
2155 if (iwl_mvm_is_adaptive_dwell_v2_supported(mvm)) {
2156 if (gen_flags & IWL_UMAC_SCAN_GEN_FLAGS_FRAGMENTED)
2157 cmd->v8.num_of_fragments[SCAN_LB_LMAC_IDX] =
2158 IWL_SCAN_NUM_OF_FRAGS;
2159 if (gen_flags & IWL_UMAC_SCAN_GEN_FLAGS_LMAC2_FRAGMENTED)
2160 cmd->v8.num_of_fragments[SCAN_HB_LMAC_IDX] =
2161 IWL_SCAN_NUM_OF_FRAGS;
2162
2163 cmd->v8.general_flags2 =
2164 IWL_UMAC_SCAN_GEN_FLAGS2_ALLOW_CHNL_REORDER;
2165 }
2166
2167 cmd->scan_start_mac_id = scan_vif->id;
2168
2169 if (type == IWL_MVM_SCAN_SCHED || type == IWL_MVM_SCAN_NETDETECT)
2170 cmd->flags = cpu_to_le32(IWL_UMAC_SCAN_FLAG_PREEMPTIVE);
2171
2172 if (iwl_mvm_scan_use_ebs(mvm, vif)) {
2173 channel_flags = IWL_SCAN_CHANNEL_FLAG_EBS |
2174 IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE |
2175 IWL_SCAN_CHANNEL_FLAG_CACHE_ADD;
2176
2177
2178 if (iwl_mvm_is_frag_ebs_supported(mvm)) {
2179 if (gen_flags &
2180 IWL_UMAC_SCAN_GEN_FLAGS_LMAC2_FRAGMENTED ||
2181 (!iwl_mvm_is_cdb_supported(mvm) &&
2182 gen_flags & IWL_UMAC_SCAN_GEN_FLAGS_FRAGMENTED))
2183 channel_flags |= IWL_SCAN_CHANNEL_FLAG_EBS_FRAG;
2184 }
2185 }
2186
2187 chan_param->flags = channel_flags;
2188 chan_param->count = params->n_channels;
2189
2190 ret = iwl_mvm_fill_scan_sched_params(params, tail_v2->schedule,
2191 &tail_v2->delay);
2192 if (ret) {
2193 mvm->scan_uid_status[uid] = 0;
2194 return ret;
2195 }
2196
2197 if (iwl_mvm_is_scan_ext_chan_supported(mvm)) {
2198 tail_v2->preq = params->preq;
2199 direct_scan = tail_v2->direct_scan;
2200 } else {
2201 tail_v1 = (struct iwl_scan_req_umac_tail_v1 *)sec_part;
2202 iwl_mvm_scan_set_legacy_probe_req(&tail_v1->preq,
2203 ¶ms->preq);
2204 direct_scan = tail_v1->direct_scan;
2205 }
2206 iwl_scan_build_ssids(params, direct_scan, &ssid_bitmap);
2207 iwl_mvm_umac_scan_cfg_channels(mvm, params->channels,
2208 params->n_channels, ssid_bitmap,
2209 cmd_data);
2210 return 0;
2211}
2212
2213static void
2214iwl_mvm_scan_umac_fill_general_p_v10(struct iwl_mvm *mvm,
2215 struct iwl_mvm_scan_params *params,
2216 struct ieee80211_vif *vif,
2217 struct iwl_scan_general_params_v10 *gp,
2218 u16 gen_flags)
2219{
2220 struct iwl_mvm_vif *scan_vif = iwl_mvm_vif_from_mac80211(vif);
2221
2222 iwl_mvm_scan_umac_dwell_v10(mvm, gp, params);
2223
2224 gp->flags = cpu_to_le16(gen_flags);
2225
2226 if (gen_flags & IWL_UMAC_SCAN_GEN_FLAGS_V2_FRAGMENTED_LMAC1)
2227 gp->num_of_fragments[SCAN_LB_LMAC_IDX] = IWL_SCAN_NUM_OF_FRAGS;
2228 if (gen_flags & IWL_UMAC_SCAN_GEN_FLAGS_V2_FRAGMENTED_LMAC2)
2229 gp->num_of_fragments[SCAN_HB_LMAC_IDX] = IWL_SCAN_NUM_OF_FRAGS;
2230
2231 gp->scan_start_mac_id = scan_vif->id;
2232}
2233
2234static void
2235iwl_mvm_scan_umac_fill_probe_p_v3(struct iwl_mvm_scan_params *params,
2236 struct iwl_scan_probe_params_v3 *pp)
2237{
2238 pp->preq = params->preq;
2239 pp->ssid_num = params->n_ssids;
2240 iwl_scan_build_ssids(params, pp->direct_scan, NULL);
2241}
2242
2243static void
2244iwl_mvm_scan_umac_fill_probe_p_v4(struct iwl_mvm_scan_params *params,
2245 struct iwl_scan_probe_params_v4 *pp,
2246 u32 *bitmap_ssid)
2247{
2248 pp->preq = params->preq;
2249 iwl_scan_build_ssids(params, pp->direct_scan, bitmap_ssid);
2250}
2251
2252static void
2253iwl_mvm_scan_umac_fill_ch_p_v4(struct iwl_mvm *mvm,
2254 struct iwl_mvm_scan_params *params,
2255 struct ieee80211_vif *vif,
2256 struct iwl_scan_channel_params_v4 *cp,
2257 u32 channel_cfg_flags)
2258{
2259 cp->flags = iwl_mvm_scan_umac_chan_flags_v2(mvm, params, vif);
2260 cp->count = params->n_channels;
2261 cp->num_of_aps_override = IWL_SCAN_ADWELL_N_APS_GO_FRIENDLY;
2262
2263 iwl_mvm_umac_scan_cfg_channels_v4(mvm, params->channels, cp,
2264 params->n_channels,
2265 channel_cfg_flags,
2266 vif->type);
2267}
2268
2269static void
2270iwl_mvm_scan_umac_fill_ch_p_v6(struct iwl_mvm *mvm,
2271 struct iwl_mvm_scan_params *params,
2272 struct ieee80211_vif *vif,
2273 struct iwl_scan_channel_params_v6 *cp,
2274 u32 channel_cfg_flags)
2275{
2276 cp->flags = iwl_mvm_scan_umac_chan_flags_v2(mvm, params, vif);
2277 cp->count = params->n_channels;
2278 cp->n_aps_override[0] = IWL_SCAN_ADWELL_N_APS_GO_FRIENDLY;
2279 cp->n_aps_override[1] = IWL_SCAN_ADWELL_N_APS_SOCIAL_CHS;
2280
2281 iwl_mvm_umac_scan_cfg_channels_v6(mvm, params->channels, cp,
2282 params->n_channels,
2283 channel_cfg_flags,
2284 vif->type);
2285
2286 if (params->enable_6ghz_passive) {
2287 struct ieee80211_supported_band *sband =
2288 &mvm->nvm_data->bands[NL80211_BAND_6GHZ];
2289 u32 i;
2290
2291 for (i = 0; i < sband->n_channels; i++) {
2292 struct ieee80211_channel *channel =
2293 &sband->channels[i];
2294
2295 struct iwl_scan_channel_cfg_umac *cfg =
2296 &cp->channel_config[cp->count];
2297
2298 if (!cfg80211_channel_is_psc(channel))
2299 continue;
2300
2301 cfg->flags = 0;
2302 cfg->v2.channel_num = channel->hw_value;
2303 cfg->v2.band = PHY_BAND_6;
2304 cfg->v2.iter_count = 1;
2305 cfg->v2.iter_interval = 0;
2306 cp->count++;
2307 }
2308 }
2309}
2310
2311static int iwl_mvm_scan_umac_v12(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2312 struct iwl_mvm_scan_params *params, int type,
2313 int uid)
2314{
2315 struct iwl_scan_req_umac_v12 *cmd = mvm->scan_cmd;
2316 struct iwl_scan_req_params_v12 *scan_p = &cmd->scan_params;
2317 int ret;
2318 u16 gen_flags;
2319
2320 mvm->scan_uid_status[uid] = type;
2321
2322 cmd->ooc_priority = cpu_to_le32(iwl_mvm_scan_umac_ooc_priority(params));
2323 cmd->uid = cpu_to_le32(uid);
2324
2325 gen_flags = iwl_mvm_scan_umac_flags_v2(mvm, params, vif, type);
2326 iwl_mvm_scan_umac_fill_general_p_v10(mvm, params, vif,
2327 &scan_p->general_params,
2328 gen_flags);
2329
2330 ret = iwl_mvm_fill_scan_sched_params(params,
2331 scan_p->periodic_params.schedule,
2332 &scan_p->periodic_params.delay);
2333 if (ret)
2334 return ret;
2335
2336 iwl_mvm_scan_umac_fill_probe_p_v3(params, &scan_p->probe_params);
2337 iwl_mvm_scan_umac_fill_ch_p_v4(mvm, params, vif,
2338 &scan_p->channel_params, 0);
2339
2340 return 0;
2341}
2342
2343static int iwl_mvm_scan_umac_v14(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2344 struct iwl_mvm_scan_params *params, int type,
2345 int uid)
2346{
2347 struct iwl_scan_req_umac_v14 *cmd = mvm->scan_cmd;
2348 struct iwl_scan_req_params_v14 *scan_p = &cmd->scan_params;
2349 struct iwl_scan_channel_params_v6 *cp = &scan_p->channel_params;
2350 struct iwl_scan_probe_params_v4 *pb = &scan_p->probe_params;
2351 int ret;
2352 u16 gen_flags;
2353 u32 bitmap_ssid = 0;
2354
2355 mvm->scan_uid_status[uid] = type;
2356
2357 cmd->ooc_priority = cpu_to_le32(iwl_mvm_scan_umac_ooc_priority(params));
2358 cmd->uid = cpu_to_le32(uid);
2359
2360 gen_flags = iwl_mvm_scan_umac_flags_v2(mvm, params, vif, type);
2361 iwl_mvm_scan_umac_fill_general_p_v10(mvm, params, vif,
2362 &scan_p->general_params,
2363 gen_flags);
2364
2365 ret = iwl_mvm_fill_scan_sched_params(params,
2366 scan_p->periodic_params.schedule,
2367 &scan_p->periodic_params.delay);
2368 if (ret)
2369 return ret;
2370
2371 iwl_mvm_scan_umac_fill_probe_p_v4(params, &scan_p->probe_params,
2372 &bitmap_ssid);
2373 if (!params->scan_6ghz) {
2374 iwl_mvm_scan_umac_fill_ch_p_v6(mvm, params, vif,
2375 &scan_p->channel_params, bitmap_ssid);
2376
2377 return 0;
2378 }
2379 cp->flags = iwl_mvm_scan_umac_chan_flags_v2(mvm, params, vif);
2380 cp->n_aps_override[0] = IWL_SCAN_ADWELL_N_APS_GO_FRIENDLY;
2381 cp->n_aps_override[1] = IWL_SCAN_ADWELL_N_APS_SOCIAL_CHS;
2382
2383 ret = iwl_mvm_umac_scan_fill_6g_chan_list(params, pb->short_ssid,
2384 pb->bssid_array[0],
2385 &pb->short_ssid_num,
2386 &pb->bssid_num);
2387 if (ret)
2388 return ret;
2389
2390 iwl_mvm_umac_scan_cfg_channels_v6_6g(params,
2391 params->n_channels,
2392 pb->short_ssid,
2393 pb->bssid_array[0],
2394 pb->short_ssid_num,
2395 pb->bssid_num, cp,
2396 vif->type);
2397 cp->count = params->n_channels;
2398 if (!params->n_ssids ||
2399 (params->n_ssids == 1 && !params->ssids[0].ssid_len))
2400 cp->flags |= IWL_SCAN_CHANNEL_FLAG_6G_PSC_NO_FILTER;
2401
2402 return 0;
2403}
2404
2405static int iwl_mvm_num_scans(struct iwl_mvm *mvm)
2406{
2407 return hweight32(mvm->scan_status & IWL_MVM_SCAN_MASK);
2408}
2409
2410static int iwl_mvm_check_running_scans(struct iwl_mvm *mvm, int type)
2411{
2412 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2413 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426 if ((type == IWL_MVM_SCAN_SCHED || type == IWL_MVM_SCAN_NETDETECT) &&
2427 mvm->scan_status & (IWL_MVM_SCAN_SCHED | IWL_MVM_SCAN_NETDETECT))
2428 return -EBUSY;
2429
2430 if (iwl_mvm_num_scans(mvm) < mvm->max_scans)
2431 return 0;
2432
2433
2434
2435
2436 switch (type) {
2437 case IWL_MVM_SCAN_REGULAR:
2438 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR_MASK)
2439 return -EBUSY;
2440 return iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
2441 case IWL_MVM_SCAN_SCHED:
2442 if (mvm->scan_status & IWL_MVM_SCAN_SCHED_MASK)
2443 return -EBUSY;
2444 return iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
2445 case IWL_MVM_SCAN_NETDETECT:
2446
2447
2448
2449
2450
2451 if (!unified_image)
2452 return 0;
2453
2454
2455
2456
2457
2458
2459
2460 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR_MASK)
2461 return iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR,
2462 true);
2463 if (mvm->scan_status & IWL_MVM_SCAN_SCHED_MASK)
2464 return iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED,
2465 true);
2466
2467
2468
2469 fallthrough;
2470 default:
2471 WARN_ON(1);
2472 break;
2473 }
2474
2475 return -EIO;
2476}
2477
2478#define SCAN_TIMEOUT 20000
2479
2480void iwl_mvm_scan_timeout_wk(struct work_struct *work)
2481{
2482 struct delayed_work *delayed_work = to_delayed_work(work);
2483 struct iwl_mvm *mvm = container_of(delayed_work, struct iwl_mvm,
2484 scan_timeout_dwork);
2485
2486 IWL_ERR(mvm, "regular scan timed out\n");
2487
2488 iwl_force_nmi(mvm->trans);
2489}
2490
2491static void iwl_mvm_fill_scan_type(struct iwl_mvm *mvm,
2492 struct iwl_mvm_scan_params *params,
2493 struct ieee80211_vif *vif)
2494{
2495 if (iwl_mvm_is_cdb_supported(mvm)) {
2496 params->type =
2497 iwl_mvm_get_scan_type_band(mvm, vif,
2498 NL80211_BAND_2GHZ);
2499 params->hb_type =
2500 iwl_mvm_get_scan_type_band(mvm, vif,
2501 NL80211_BAND_5GHZ);
2502 } else {
2503 params->type = iwl_mvm_get_scan_type(mvm, vif);
2504 }
2505}
2506
2507struct iwl_scan_umac_handler {
2508 u8 version;
2509 int (*handler)(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2510 struct iwl_mvm_scan_params *params, int type, int uid);
2511};
2512
2513#define IWL_SCAN_UMAC_HANDLER(_ver) { \
2514 .version = _ver, \
2515 .handler = iwl_mvm_scan_umac_v##_ver, \
2516}
2517
2518static const struct iwl_scan_umac_handler iwl_scan_umac_handlers[] = {
2519
2520 IWL_SCAN_UMAC_HANDLER(14),
2521 IWL_SCAN_UMAC_HANDLER(12),
2522};
2523
2524static int iwl_mvm_build_scan_cmd(struct iwl_mvm *mvm,
2525 struct ieee80211_vif *vif,
2526 struct iwl_host_cmd *hcmd,
2527 struct iwl_mvm_scan_params *params,
2528 int type)
2529{
2530 int uid, i, err;
2531 u8 scan_ver;
2532
2533 lockdep_assert_held(&mvm->mutex);
2534 memset(mvm->scan_cmd, 0, ksize(mvm->scan_cmd));
2535
2536 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2537 hcmd->id = SCAN_OFFLOAD_REQUEST_CMD;
2538
2539 return iwl_mvm_scan_lmac(mvm, vif, params);
2540 }
2541
2542 uid = iwl_mvm_scan_uid_by_status(mvm, 0);
2543 if (uid < 0)
2544 return uid;
2545
2546 hcmd->id = iwl_cmd_id(SCAN_REQ_UMAC, IWL_ALWAYS_LONG_GROUP, 0);
2547
2548 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP,
2549 SCAN_REQ_UMAC,
2550 IWL_FW_CMD_VER_UNKNOWN);
2551
2552 for (i = 0; i < ARRAY_SIZE(iwl_scan_umac_handlers); i++) {
2553 const struct iwl_scan_umac_handler *ver_handler =
2554 &iwl_scan_umac_handlers[i];
2555
2556 if (ver_handler->version != scan_ver)
2557 continue;
2558
2559 return ver_handler->handler(mvm, vif, params, type, uid);
2560 }
2561
2562 err = iwl_mvm_scan_umac(mvm, vif, params, type, uid);
2563 if (err)
2564 return err;
2565
2566 return uid;
2567}
2568
2569int iwl_mvm_reg_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2570 struct cfg80211_scan_request *req,
2571 struct ieee80211_scan_ies *ies)
2572{
2573 struct iwl_host_cmd hcmd = {
2574 .len = { iwl_mvm_scan_size(mvm), },
2575 .data = { mvm->scan_cmd, },
2576 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
2577 };
2578 struct iwl_mvm_scan_params params = {};
2579 int ret, uid;
2580 struct cfg80211_sched_scan_plan scan_plan = { .iterations = 1 };
2581
2582 lockdep_assert_held(&mvm->mutex);
2583
2584 if (iwl_mvm_is_lar_supported(mvm) && !mvm->lar_regdom_set) {
2585 IWL_ERR(mvm, "scan while LAR regdomain is not set\n");
2586 return -EBUSY;
2587 }
2588
2589 ret = iwl_mvm_check_running_scans(mvm, IWL_MVM_SCAN_REGULAR);
2590 if (ret)
2591 return ret;
2592
2593
2594 if (WARN_ON(!mvm->scan_cmd))
2595 return -ENOMEM;
2596
2597 if (!iwl_mvm_scan_fits(mvm, req->n_ssids, ies, req->n_channels))
2598 return -ENOBUFS;
2599
2600 params.n_ssids = req->n_ssids;
2601 params.flags = req->flags;
2602 params.n_channels = req->n_channels;
2603 params.delay = 0;
2604 params.ssids = req->ssids;
2605 params.channels = req->channels;
2606 params.mac_addr = req->mac_addr;
2607 params.mac_addr_mask = req->mac_addr_mask;
2608 params.no_cck = req->no_cck;
2609 params.pass_all = true;
2610 params.n_match_sets = 0;
2611 params.match_sets = NULL;
2612
2613 params.scan_plans = &scan_plan;
2614 params.n_scan_plans = 1;
2615
2616 params.n_6ghz_params = req->n_6ghz_params;
2617 params.scan_6ghz_params = req->scan_6ghz_params;
2618 params.scan_6ghz = req->scan_6ghz;
2619 iwl_mvm_fill_scan_type(mvm, ¶ms, vif);
2620
2621 if (req->duration)
2622 params.iter_notif = true;
2623
2624 iwl_mvm_build_scan_probe(mvm, vif, ies, ¶ms);
2625
2626 iwl_mvm_scan_6ghz_passive_scan(mvm, ¶ms, vif);
2627
2628 uid = iwl_mvm_build_scan_cmd(mvm, vif, &hcmd, ¶ms,
2629 IWL_MVM_SCAN_REGULAR);
2630
2631 if (uid < 0)
2632 return uid;
2633
2634 iwl_mvm_pause_tcm(mvm, false);
2635
2636 ret = iwl_mvm_send_cmd(mvm, &hcmd);
2637 if (ret) {
2638
2639
2640
2641
2642 IWL_ERR(mvm, "Scan failed! ret %d\n", ret);
2643 iwl_mvm_resume_tcm(mvm);
2644 mvm->scan_uid_status[uid] = 0;
2645 return ret;
2646 }
2647
2648 IWL_DEBUG_SCAN(mvm, "Scan request was sent successfully\n");
2649 mvm->scan_status |= IWL_MVM_SCAN_REGULAR;
2650 mvm->scan_vif = iwl_mvm_vif_from_mac80211(vif);
2651
2652 if (params.enable_6ghz_passive)
2653 mvm->last_6ghz_passive_scan_jiffies = jiffies;
2654
2655 schedule_delayed_work(&mvm->scan_timeout_dwork,
2656 msecs_to_jiffies(SCAN_TIMEOUT));
2657
2658 return 0;
2659}
2660
2661int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
2662 struct ieee80211_vif *vif,
2663 struct cfg80211_sched_scan_request *req,
2664 struct ieee80211_scan_ies *ies,
2665 int type)
2666{
2667 struct iwl_host_cmd hcmd = {
2668 .len = { iwl_mvm_scan_size(mvm), },
2669 .data = { mvm->scan_cmd, },
2670 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
2671 };
2672 struct iwl_mvm_scan_params params = {};
2673 int ret, uid;
2674 int i, j;
2675 bool non_psc_included = false;
2676
2677 lockdep_assert_held(&mvm->mutex);
2678
2679 if (iwl_mvm_is_lar_supported(mvm) && !mvm->lar_regdom_set) {
2680 IWL_ERR(mvm, "sched-scan while LAR regdomain is not set\n");
2681 return -EBUSY;
2682 }
2683
2684 ret = iwl_mvm_check_running_scans(mvm, type);
2685 if (ret)
2686 return ret;
2687
2688
2689 if (WARN_ON(!mvm->scan_cmd))
2690 return -ENOMEM;
2691
2692
2693 params.n_ssids = req->n_ssids;
2694 params.flags = req->flags;
2695 params.n_channels = req->n_channels;
2696 params.ssids = req->ssids;
2697 params.channels = req->channels;
2698 params.mac_addr = req->mac_addr;
2699 params.mac_addr_mask = req->mac_addr_mask;
2700 params.no_cck = false;
2701 params.pass_all = iwl_mvm_scan_pass_all(mvm, req);
2702 params.n_match_sets = req->n_match_sets;
2703 params.match_sets = req->match_sets;
2704 if (!req->n_scan_plans)
2705 return -EINVAL;
2706
2707 params.n_scan_plans = req->n_scan_plans;
2708 params.scan_plans = req->scan_plans;
2709
2710 iwl_mvm_fill_scan_type(mvm, ¶ms, vif);
2711
2712
2713
2714
2715
2716
2717 if (req->delay > U16_MAX) {
2718 IWL_DEBUG_SCAN(mvm,
2719 "delay value is > 16-bits, set to max possible\n");
2720 params.delay = U16_MAX;
2721 } else {
2722 params.delay = req->delay;
2723 }
2724
2725 ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
2726 if (ret)
2727 return ret;
2728
2729 iwl_mvm_build_scan_probe(mvm, vif, ies, ¶ms);
2730
2731
2732 for (i = 0; i < params.n_channels; i++) {
2733 struct ieee80211_channel *channel = params.channels[i];
2734
2735 if (channel->band == NL80211_BAND_6GHZ &&
2736 !cfg80211_channel_is_psc(channel)) {
2737 non_psc_included = true;
2738 break;
2739 }
2740 }
2741
2742 if (non_psc_included) {
2743 params.channels = kmemdup(params.channels,
2744 sizeof(params.channels[0]) *
2745 params.n_channels,
2746 GFP_KERNEL);
2747 if (!params.channels)
2748 return -ENOMEM;
2749
2750 for (i = j = 0; i < params.n_channels; i++) {
2751 if (params.channels[i]->band == NL80211_BAND_6GHZ &&
2752 !cfg80211_channel_is_psc(params.channels[i]))
2753 continue;
2754 params.channels[j++] = params.channels[i];
2755 }
2756 params.n_channels = j;
2757 }
2758
2759 if (non_psc_included &&
2760 !iwl_mvm_scan_fits(mvm, req->n_ssids, ies, params.n_channels)) {
2761 kfree(params.channels);
2762 return -ENOBUFS;
2763 }
2764
2765 uid = iwl_mvm_build_scan_cmd(mvm, vif, &hcmd, ¶ms, type);
2766
2767 if (non_psc_included)
2768 kfree(params.channels);
2769 if (uid < 0)
2770 return uid;
2771
2772 ret = iwl_mvm_send_cmd(mvm, &hcmd);
2773 if (!ret) {
2774 IWL_DEBUG_SCAN(mvm,
2775 "Sched scan request was sent successfully\n");
2776 mvm->scan_status |= type;
2777 } else {
2778
2779
2780
2781
2782 IWL_ERR(mvm, "Sched scan failed! ret %d\n", ret);
2783 mvm->scan_uid_status[uid] = 0;
2784 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
2785 }
2786
2787 return ret;
2788}
2789
2790void iwl_mvm_rx_umac_scan_complete_notif(struct iwl_mvm *mvm,
2791 struct iwl_rx_cmd_buffer *rxb)
2792{
2793 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2794 struct iwl_umac_scan_complete *notif = (void *)pkt->data;
2795 u32 uid = __le32_to_cpu(notif->uid);
2796 bool aborted = (notif->status == IWL_SCAN_OFFLOAD_ABORTED);
2797
2798 if (WARN_ON(!(mvm->scan_uid_status[uid] & mvm->scan_status)))
2799 return;
2800
2801
2802 if (mvm->scan_uid_status[uid] == IWL_MVM_SCAN_REGULAR) {
2803 struct cfg80211_scan_info info = {
2804 .aborted = aborted,
2805 .scan_start_tsf = mvm->scan_start,
2806 };
2807
2808 memcpy(info.tsf_bssid, mvm->scan_vif->bssid, ETH_ALEN);
2809 ieee80211_scan_completed(mvm->hw, &info);
2810 mvm->scan_vif = NULL;
2811 cancel_delayed_work(&mvm->scan_timeout_dwork);
2812 iwl_mvm_resume_tcm(mvm);
2813 } else if (mvm->scan_uid_status[uid] == IWL_MVM_SCAN_SCHED) {
2814 ieee80211_sched_scan_stopped(mvm->hw);
2815 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
2816 }
2817
2818 mvm->scan_status &= ~mvm->scan_uid_status[uid];
2819 IWL_DEBUG_SCAN(mvm,
2820 "Scan completed, uid %u type %u, status %s, EBS status %s\n",
2821 uid, mvm->scan_uid_status[uid],
2822 notif->status == IWL_SCAN_OFFLOAD_COMPLETED ?
2823 "completed" : "aborted",
2824 iwl_mvm_ebs_status_str(notif->ebs_status));
2825 IWL_DEBUG_SCAN(mvm,
2826 "Last line %d, Last iteration %d, Time from last iteration %d\n",
2827 notif->last_schedule, notif->last_iter,
2828 __le32_to_cpu(notif->time_from_last_iter));
2829
2830 if (notif->ebs_status != IWL_SCAN_EBS_SUCCESS &&
2831 notif->ebs_status != IWL_SCAN_EBS_INACTIVE)
2832 mvm->last_ebs_successful = false;
2833
2834 mvm->scan_uid_status[uid] = 0;
2835}
2836
2837void iwl_mvm_rx_umac_scan_iter_complete_notif(struct iwl_mvm *mvm,
2838 struct iwl_rx_cmd_buffer *rxb)
2839{
2840 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2841 struct iwl_umac_scan_iter_complete_notif *notif = (void *)pkt->data;
2842
2843 mvm->scan_start = le64_to_cpu(notif->start_tsf);
2844
2845 IWL_DEBUG_SCAN(mvm,
2846 "UMAC Scan iteration complete: status=0x%x scanned_channels=%d\n",
2847 notif->status, notif->scanned_channels);
2848
2849 if (mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_FOUND) {
2850 IWL_DEBUG_SCAN(mvm, "Pass all scheduled scan results found\n");
2851 ieee80211_sched_scan_results(mvm->hw);
2852 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_ENABLED;
2853 }
2854
2855 IWL_DEBUG_SCAN(mvm,
2856 "UMAC Scan iteration complete: scan started at %llu (TSF)\n",
2857 mvm->scan_start);
2858}
2859
2860static int iwl_mvm_umac_scan_abort(struct iwl_mvm *mvm, int type)
2861{
2862 struct iwl_umac_scan_abort cmd = {};
2863 int uid, ret;
2864
2865 lockdep_assert_held(&mvm->mutex);
2866
2867
2868
2869
2870
2871 uid = iwl_mvm_scan_uid_by_status(mvm, type);
2872 if (WARN_ON_ONCE(uid < 0))
2873 return uid;
2874
2875 cmd.uid = cpu_to_le32(uid);
2876
2877 IWL_DEBUG_SCAN(mvm, "Sending scan abort, uid %u\n", uid);
2878
2879 ret = iwl_mvm_send_cmd_pdu(mvm,
2880 iwl_cmd_id(SCAN_ABORT_UMAC,
2881 IWL_ALWAYS_LONG_GROUP, 0),
2882 0, sizeof(cmd), &cmd);
2883 if (!ret)
2884 mvm->scan_uid_status[uid] = type << IWL_MVM_SCAN_STOPPING_SHIFT;
2885
2886 return ret;
2887}
2888
2889static int iwl_mvm_scan_stop_wait(struct iwl_mvm *mvm, int type)
2890{
2891 struct iwl_notification_wait wait_scan_done;
2892 static const u16 scan_done_notif[] = { SCAN_COMPLETE_UMAC,
2893 SCAN_OFFLOAD_COMPLETE, };
2894 int ret;
2895
2896 lockdep_assert_held(&mvm->mutex);
2897
2898 iwl_init_notification_wait(&mvm->notif_wait, &wait_scan_done,
2899 scan_done_notif,
2900 ARRAY_SIZE(scan_done_notif),
2901 NULL, NULL);
2902
2903 IWL_DEBUG_SCAN(mvm, "Preparing to stop scan, type %x\n", type);
2904
2905 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2906 ret = iwl_mvm_umac_scan_abort(mvm, type);
2907 else
2908 ret = iwl_mvm_lmac_scan_abort(mvm);
2909
2910 if (ret) {
2911 IWL_DEBUG_SCAN(mvm, "couldn't stop scan type %d\n", type);
2912 iwl_remove_notification(&mvm->notif_wait, &wait_scan_done);
2913 return ret;
2914 }
2915
2916 return iwl_wait_notification(&mvm->notif_wait, &wait_scan_done,
2917 1 * HZ);
2918}
2919
2920#define IWL_SCAN_REQ_UMAC_HANDLE_SIZE(_ver) { \
2921 case (_ver): return sizeof(struct iwl_scan_req_umac_v##_ver); \
2922}
2923
2924static int iwl_scan_req_umac_get_size(u8 scan_ver)
2925{
2926 switch (scan_ver) {
2927 IWL_SCAN_REQ_UMAC_HANDLE_SIZE(14);
2928 IWL_SCAN_REQ_UMAC_HANDLE_SIZE(12);
2929 }
2930
2931 return 0;
2932}
2933
2934int iwl_mvm_scan_size(struct iwl_mvm *mvm)
2935{
2936 int base_size, tail_size;
2937 u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP,
2938 SCAN_REQ_UMAC,
2939 IWL_FW_CMD_VER_UNKNOWN);
2940
2941 base_size = iwl_scan_req_umac_get_size(scan_ver);
2942 if (base_size)
2943 return base_size;
2944
2945
2946 if (iwl_mvm_is_adaptive_dwell_v2_supported(mvm))
2947 base_size = IWL_SCAN_REQ_UMAC_SIZE_V8;
2948 else if (iwl_mvm_is_adaptive_dwell_supported(mvm))
2949 base_size = IWL_SCAN_REQ_UMAC_SIZE_V7;
2950 else if (iwl_mvm_cdb_scan_api(mvm))
2951 base_size = IWL_SCAN_REQ_UMAC_SIZE_V6;
2952 else
2953 base_size = IWL_SCAN_REQ_UMAC_SIZE_V1;
2954
2955 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2956 if (iwl_mvm_is_scan_ext_chan_supported(mvm))
2957 tail_size = sizeof(struct iwl_scan_req_umac_tail_v2);
2958 else
2959 tail_size = sizeof(struct iwl_scan_req_umac_tail_v1);
2960
2961 return base_size +
2962 sizeof(struct iwl_scan_channel_cfg_umac) *
2963 mvm->fw->ucode_capa.n_scan_channels +
2964 tail_size;
2965 }
2966 return sizeof(struct iwl_scan_req_lmac) +
2967 sizeof(struct iwl_scan_channel_cfg_lmac) *
2968 mvm->fw->ucode_capa.n_scan_channels +
2969 sizeof(struct iwl_scan_probe_req_v1);
2970}
2971
2972
2973
2974
2975
2976void iwl_mvm_report_scan_aborted(struct iwl_mvm *mvm)
2977{
2978 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2979 int uid, i;
2980
2981 uid = iwl_mvm_scan_uid_by_status(mvm, IWL_MVM_SCAN_REGULAR);
2982 if (uid >= 0) {
2983 struct cfg80211_scan_info info = {
2984 .aborted = true,
2985 };
2986
2987 cancel_delayed_work(&mvm->scan_timeout_dwork);
2988
2989 ieee80211_scan_completed(mvm->hw, &info);
2990 mvm->scan_uid_status[uid] = 0;
2991 }
2992 uid = iwl_mvm_scan_uid_by_status(mvm, IWL_MVM_SCAN_SCHED);
2993 if (uid >= 0) {
2994
2995
2996
2997
2998 if (!mvm->fw_restart)
2999 ieee80211_sched_scan_stopped(mvm->hw);
3000 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
3001 mvm->scan_uid_status[uid] = 0;
3002 }
3003 uid = iwl_mvm_scan_uid_by_status(mvm,
3004 IWL_MVM_SCAN_STOPPING_REGULAR);
3005 if (uid >= 0)
3006 mvm->scan_uid_status[uid] = 0;
3007
3008 uid = iwl_mvm_scan_uid_by_status(mvm,
3009 IWL_MVM_SCAN_STOPPING_SCHED);
3010 if (uid >= 0)
3011 mvm->scan_uid_status[uid] = 0;
3012
3013
3014
3015
3016
3017 for (i = 0; i < mvm->max_scans; i++) {
3018 if (WARN_ONCE(mvm->scan_uid_status[i],
3019 "UMAC scan UID %d status was not cleaned\n",
3020 i))
3021 mvm->scan_uid_status[i] = 0;
3022 }
3023 } else {
3024 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) {
3025 struct cfg80211_scan_info info = {
3026 .aborted = true,
3027 };
3028
3029 cancel_delayed_work(&mvm->scan_timeout_dwork);
3030 ieee80211_scan_completed(mvm->hw, &info);
3031 }
3032
3033
3034
3035
3036
3037 if ((mvm->scan_status & IWL_MVM_SCAN_SCHED) &&
3038 !mvm->fw_restart) {
3039 ieee80211_sched_scan_stopped(mvm->hw);
3040 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
3041 }
3042 }
3043}
3044
3045int iwl_mvm_scan_stop(struct iwl_mvm *mvm, int type, bool notify)
3046{
3047 int ret;
3048
3049 if (!(mvm->scan_status & type))
3050 return 0;
3051
3052 if (iwl_mvm_is_radio_killed(mvm)) {
3053 ret = 0;
3054 goto out;
3055 }
3056
3057 ret = iwl_mvm_scan_stop_wait(mvm, type);
3058 if (!ret)
3059 mvm->scan_status |= type << IWL_MVM_SCAN_STOPPING_SHIFT;
3060out:
3061
3062
3063
3064
3065
3066 mvm->scan_status &= ~type;
3067
3068 if (type == IWL_MVM_SCAN_REGULAR) {
3069 cancel_delayed_work(&mvm->scan_timeout_dwork);
3070 if (notify) {
3071 struct cfg80211_scan_info info = {
3072 .aborted = true,
3073 };
3074
3075 ieee80211_scan_completed(mvm->hw, &info);
3076 }
3077 } else if (notify) {
3078 ieee80211_sched_scan_stopped(mvm->hw);
3079 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_DISABLED;
3080 }
3081
3082 return ret;
3083}
3084