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63#include <linux/etherdevice.h>
64#include <linux/skbuff.h>
65#include "iwl-trans.h"
66#include "mvm.h"
67#include "fw-api.h"
68
69static void *iwl_mvm_skb_get_hdr(struct sk_buff *skb)
70{
71 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
72 u8 *data = skb->data;
73
74
75 BUILD_BUG_ON(sizeof(struct ieee80211_radiotap_he) % 4);
76 BUILD_BUG_ON(sizeof(struct ieee80211_radiotap_he_mu) % 4);
77 BUILD_BUG_ON(sizeof(struct ieee80211_radiotap_lsig) % 4);
78 BUILD_BUG_ON(sizeof(struct ieee80211_vendor_radiotap) % 4);
79
80 if (rx_status->flag & RX_FLAG_RADIOTAP_HE)
81 data += sizeof(struct ieee80211_radiotap_he);
82 if (rx_status->flag & RX_FLAG_RADIOTAP_HE_MU)
83 data += sizeof(struct ieee80211_radiotap_he_mu);
84 if (rx_status->flag & RX_FLAG_RADIOTAP_LSIG)
85 data += sizeof(struct ieee80211_radiotap_lsig);
86 if (rx_status->flag & RX_FLAG_RADIOTAP_VENDOR_DATA) {
87 struct ieee80211_vendor_radiotap *radiotap = (void *)data;
88
89 data += sizeof(*radiotap) + radiotap->len + radiotap->pad;
90 }
91
92 return data;
93}
94
95static inline int iwl_mvm_check_pn(struct iwl_mvm *mvm, struct sk_buff *skb,
96 int queue, struct ieee80211_sta *sta)
97{
98 struct iwl_mvm_sta *mvmsta;
99 struct ieee80211_hdr *hdr = iwl_mvm_skb_get_hdr(skb);
100 struct ieee80211_rx_status *stats = IEEE80211_SKB_RXCB(skb);
101 struct iwl_mvm_key_pn *ptk_pn;
102 int res;
103 u8 tid, keyidx;
104 u8 pn[IEEE80211_CCMP_PN_LEN];
105 u8 *extiv;
106
107
108
109
110 if (!ieee80211_is_data(hdr->frame_control) ||
111 is_multicast_ether_addr(hdr->addr1))
112 return 0;
113
114
115 if (!(stats->flag & RX_FLAG_DECRYPTED))
116 return 0;
117
118
119
120
121
122
123 if (queue == 0)
124 return 0;
125
126
127 if (IS_ERR_OR_NULL(sta)) {
128 IWL_ERR(mvm,
129 "expected hw-decrypted unicast frame for station\n");
130 return -1;
131 }
132
133 mvmsta = iwl_mvm_sta_from_mac80211(sta);
134
135 extiv = (u8 *)hdr + ieee80211_hdrlen(hdr->frame_control);
136 keyidx = extiv[3] >> 6;
137
138 ptk_pn = rcu_dereference(mvmsta->ptk_pn[keyidx]);
139 if (!ptk_pn)
140 return -1;
141
142 if (ieee80211_is_data_qos(hdr->frame_control))
143 tid = ieee80211_get_tid(hdr);
144 else
145 tid = 0;
146
147
148 if (tid >= IWL_MAX_TID_COUNT)
149 return -1;
150
151
152 pn[0] = extiv[7];
153 pn[1] = extiv[6];
154 pn[2] = extiv[5];
155 pn[3] = extiv[4];
156 pn[4] = extiv[1];
157 pn[5] = extiv[0];
158
159 res = memcmp(pn, ptk_pn->q[queue].pn[tid], IEEE80211_CCMP_PN_LEN);
160 if (res < 0)
161 return -1;
162 if (!res && !(stats->flag & RX_FLAG_ALLOW_SAME_PN))
163 return -1;
164
165 memcpy(ptk_pn->q[queue].pn[tid], pn, IEEE80211_CCMP_PN_LEN);
166 stats->flag |= RX_FLAG_PN_VALIDATED;
167
168 return 0;
169}
170
171
172static int iwl_mvm_create_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
173 struct ieee80211_hdr *hdr, u16 len, u8 crypt_len,
174 struct iwl_rx_cmd_buffer *rxb)
175{
176 struct iwl_rx_packet *pkt = rxb_addr(rxb);
177 struct iwl_rx_mpdu_desc *desc = (void *)pkt->data;
178 unsigned int headlen, fraglen, pad_len = 0;
179 unsigned int hdrlen = ieee80211_hdrlen(hdr->frame_control);
180
181 if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) {
182 len -= 2;
183 pad_len = 2;
184 }
185
186
187
188
189
190
191
192
193
194
195
196
197
198 headlen = (len <= skb_tailroom(skb)) ? len :
199 hdrlen + crypt_len + 8;
200
201
202
203
204
205
206 hdrlen += crypt_len;
207
208 if (WARN_ONCE(headlen < hdrlen,
209 "invalid packet lengths (hdrlen=%d, len=%d, crypt_len=%d)\n",
210 hdrlen, len, crypt_len)) {
211
212
213
214
215 IWL_DEBUG_RX(mvm,
216 "invalid packet lengths (hdrlen=%d, len=%d, crypt_len=%d)\n",
217 hdrlen, len, crypt_len);
218 return -EINVAL;
219 }
220
221 skb_put_data(skb, hdr, hdrlen);
222 skb_put_data(skb, (u8 *)hdr + hdrlen + pad_len, headlen - hdrlen);
223
224 fraglen = len - headlen;
225
226 if (fraglen) {
227 int offset = (void *)hdr + headlen + pad_len -
228 rxb_addr(rxb) + rxb_offset(rxb);
229
230 skb_add_rx_frag(skb, 0, rxb_steal_page(rxb), offset,
231 fraglen, rxb->truesize);
232 }
233
234 return 0;
235}
236
237static void iwl_mvm_add_rtap_sniffer_config(struct iwl_mvm *mvm,
238 struct sk_buff *skb)
239{
240 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
241 struct ieee80211_vendor_radiotap *radiotap;
242 const int size = sizeof(*radiotap) + sizeof(__le16);
243
244 if (!mvm->cur_aid)
245 return;
246
247
248 BUILD_BUG_ON((size + 2) % 4);
249
250 radiotap = skb_put(skb, size + 2);
251 radiotap->align = 1;
252
253 radiotap->oui[0] = 0xf6;
254 radiotap->oui[1] = 0x54;
255 radiotap->oui[2] = 0x25;
256
257 radiotap->subns = 1;
258 radiotap->present = 0x1;
259 radiotap->len = size - sizeof(*radiotap);
260 radiotap->pad = 2;
261
262
263 memcpy(radiotap->data, &mvm->cur_aid, sizeof(mvm->cur_aid));
264
265 memset(radiotap->data + sizeof(__le16), 0, radiotap->pad);
266
267 rx_status->flag |= RX_FLAG_RADIOTAP_VENDOR_DATA;
268}
269
270
271static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm,
272 struct napi_struct *napi,
273 struct sk_buff *skb, int queue,
274 struct ieee80211_sta *sta,
275 bool csi)
276{
277 if (iwl_mvm_check_pn(mvm, skb, queue, sta))
278 kfree_skb(skb);
279 else
280 ieee80211_rx_napi(mvm->hw, sta, skb, napi);
281}
282
283static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm,
284 struct ieee80211_rx_status *rx_status,
285 u32 rate_n_flags, int energy_a,
286 int energy_b)
287{
288 int max_energy;
289 u32 rate_flags = rate_n_flags;
290
291 energy_a = energy_a ? -energy_a : S8_MIN;
292 energy_b = energy_b ? -energy_b : S8_MIN;
293 max_energy = max(energy_a, energy_b);
294
295 IWL_DEBUG_STATS(mvm, "energy In A %d B %d, and max %d\n",
296 energy_a, energy_b, max_energy);
297
298 rx_status->signal = max_energy;
299 rx_status->chains =
300 (rate_flags & RATE_MCS_ANT_AB_MSK) >> RATE_MCS_ANT_POS;
301 rx_status->chain_signal[0] = energy_a;
302 rx_status->chain_signal[1] = energy_b;
303 rx_status->chain_signal[2] = S8_MIN;
304}
305
306static int iwl_mvm_rx_crypto(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
307 struct ieee80211_rx_status *stats, u16 phy_info,
308 struct iwl_rx_mpdu_desc *desc,
309 u32 pkt_flags, int queue, u8 *crypt_len)
310{
311 u16 status = le16_to_cpu(desc->status);
312
313
314
315
316
317
318
319
320 if (phy_info & IWL_RX_MPDU_PHY_AMPDU &&
321 (status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
322 IWL_RX_MPDU_STATUS_SEC_UNKNOWN && !mvm->monitor_on)
323 return -1;
324
325 if (!ieee80211_has_protected(hdr->frame_control) ||
326 (status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
327 IWL_RX_MPDU_STATUS_SEC_NONE)
328 return 0;
329
330
331
332 switch (status & IWL_RX_MPDU_STATUS_SEC_MASK) {
333 case IWL_RX_MPDU_STATUS_SEC_CCM:
334 case IWL_RX_MPDU_STATUS_SEC_GCM:
335 BUILD_BUG_ON(IEEE80211_CCMP_PN_LEN != IEEE80211_GCMP_PN_LEN);
336
337 if (!(status & IWL_RX_MPDU_STATUS_MIC_OK))
338 return -1;
339
340 stats->flag |= RX_FLAG_DECRYPTED;
341 if (pkt_flags & FH_RSCSR_RADA_EN)
342 stats->flag |= RX_FLAG_MIC_STRIPPED;
343 *crypt_len = IEEE80211_CCMP_HDR_LEN;
344 return 0;
345 case IWL_RX_MPDU_STATUS_SEC_TKIP:
346
347 if (!fw_has_api(&mvm->fw->ucode_capa,
348 IWL_UCODE_TLV_API_DEPRECATE_TTAK) &&
349 !(status & IWL_RX_MPDU_RES_STATUS_TTAK_OK))
350 return 0;
351
352 if (mvm->trans->cfg->gen2 &&
353 !(status & RX_MPDU_RES_STATUS_MIC_OK))
354 stats->flag |= RX_FLAG_MMIC_ERROR;
355
356 *crypt_len = IEEE80211_TKIP_IV_LEN;
357
358 case IWL_RX_MPDU_STATUS_SEC_WEP:
359 if (!(status & IWL_RX_MPDU_STATUS_ICV_OK))
360 return -1;
361
362 stats->flag |= RX_FLAG_DECRYPTED;
363 if ((status & IWL_RX_MPDU_STATUS_SEC_MASK) ==
364 IWL_RX_MPDU_STATUS_SEC_WEP)
365 *crypt_len = IEEE80211_WEP_IV_LEN;
366
367 if (pkt_flags & FH_RSCSR_RADA_EN) {
368 stats->flag |= RX_FLAG_ICV_STRIPPED;
369 if (mvm->trans->cfg->gen2)
370 stats->flag |= RX_FLAG_MMIC_STRIPPED;
371 }
372
373 return 0;
374 case IWL_RX_MPDU_STATUS_SEC_EXT_ENC:
375 if (!(status & IWL_RX_MPDU_STATUS_MIC_OK))
376 return -1;
377 stats->flag |= RX_FLAG_DECRYPTED;
378 return 0;
379 default:
380
381 if (!mvm->monitor_on)
382 IWL_ERR(mvm, "Unhandled alg: 0x%x\n", status);
383 }
384
385 return 0;
386}
387
388static void iwl_mvm_rx_csum(struct ieee80211_sta *sta,
389 struct sk_buff *skb,
390 struct iwl_rx_mpdu_desc *desc)
391{
392 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
393 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
394 u16 flags = le16_to_cpu(desc->l3l4_flags);
395 u8 l3_prot = (u8)((flags & IWL_RX_L3L4_L3_PROTO_MASK) >>
396 IWL_RX_L3_PROTO_POS);
397
398 if (mvmvif->features & NETIF_F_RXCSUM &&
399 flags & IWL_RX_L3L4_TCP_UDP_CSUM_OK &&
400 (flags & IWL_RX_L3L4_IP_HDR_CSUM_OK ||
401 l3_prot == IWL_RX_L3_TYPE_IPV6 ||
402 l3_prot == IWL_RX_L3_TYPE_IPV6_FRAG))
403 skb->ip_summed = CHECKSUM_UNNECESSARY;
404}
405
406
407
408
409
410static bool iwl_mvm_is_dup(struct ieee80211_sta *sta, int queue,
411 struct ieee80211_rx_status *rx_status,
412 struct ieee80211_hdr *hdr,
413 struct iwl_rx_mpdu_desc *desc)
414{
415 struct iwl_mvm_sta *mvm_sta;
416 struct iwl_mvm_rxq_dup_data *dup_data;
417 u8 tid, sub_frame_idx;
418
419 if (WARN_ON(IS_ERR_OR_NULL(sta)))
420 return false;
421
422 mvm_sta = iwl_mvm_sta_from_mac80211(sta);
423 dup_data = &mvm_sta->dup_data[queue];
424
425
426
427
428
429 if (ieee80211_is_ctl(hdr->frame_control) ||
430 ieee80211_is_qos_nullfunc(hdr->frame_control) ||
431 is_multicast_ether_addr(hdr->addr1)) {
432 rx_status->flag |= RX_FLAG_DUP_VALIDATED;
433 return false;
434 }
435
436 if (ieee80211_is_data_qos(hdr->frame_control))
437
438 tid = ieee80211_get_tid(hdr);
439 else
440 tid = IWL_MAX_TID_COUNT;
441
442
443 sub_frame_idx = desc->amsdu_info &
444 IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;
445
446 if (unlikely(ieee80211_has_retry(hdr->frame_control) &&
447 dup_data->last_seq[tid] == hdr->seq_ctrl &&
448 dup_data->last_sub_frame[tid] >= sub_frame_idx))
449 return true;
450
451
452 if (dup_data->last_seq[tid] == hdr->seq_ctrl &&
453 sub_frame_idx > dup_data->last_sub_frame[tid] &&
454 desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU)
455 rx_status->flag |= RX_FLAG_ALLOW_SAME_PN;
456
457 dup_data->last_seq[tid] = hdr->seq_ctrl;
458 dup_data->last_sub_frame[tid] = sub_frame_idx;
459
460 rx_status->flag |= RX_FLAG_DUP_VALIDATED;
461
462 return false;
463}
464
465int iwl_mvm_notify_rx_queue(struct iwl_mvm *mvm, u32 rxq_mask,
466 const u8 *data, u32 count, bool async)
467{
468 u8 buf[sizeof(struct iwl_rxq_sync_cmd) +
469 sizeof(struct iwl_mvm_rss_sync_notif)];
470 struct iwl_rxq_sync_cmd *cmd = (void *)buf;
471 u32 data_size = sizeof(*cmd) + count;
472 int ret;
473
474
475
476
477
478 if (WARN_ON(count & 3 ||
479 count > sizeof(struct iwl_mvm_rss_sync_notif)))
480 return -EINVAL;
481
482 cmd->rxq_mask = cpu_to_le32(rxq_mask);
483 cmd->count = cpu_to_le32(count);
484 cmd->flags = 0;
485 memcpy(cmd->payload, data, count);
486
487 ret = iwl_mvm_send_cmd_pdu(mvm,
488 WIDE_ID(DATA_PATH_GROUP,
489 TRIGGER_RX_QUEUES_NOTIF_CMD),
490 async ? CMD_ASYNC : 0, data_size, cmd);
491
492 return ret;
493}
494
495
496
497
498
499
500
501static bool iwl_mvm_is_sn_less(u16 sn1, u16 sn2, u16 buffer_size)
502{
503 return ieee80211_sn_less(sn1, sn2) &&
504 !ieee80211_sn_less(sn1, sn2 - buffer_size);
505}
506
507static void iwl_mvm_sync_nssn(struct iwl_mvm *mvm, u8 baid, u16 nssn)
508{
509 struct iwl_mvm_rss_sync_notif notif = {
510 .metadata.type = IWL_MVM_RXQ_NSSN_SYNC,
511 .metadata.sync = 0,
512 .nssn_sync.baid = baid,
513 .nssn_sync.nssn = nssn,
514 };
515
516 iwl_mvm_sync_rx_queues_internal(mvm, (void *)¬if, sizeof(notif));
517}
518
519#define RX_REORDER_BUF_TIMEOUT_MQ (HZ / 10)
520
521enum iwl_mvm_release_flags {
522 IWL_MVM_RELEASE_SEND_RSS_SYNC = BIT(0),
523 IWL_MVM_RELEASE_FROM_RSS_SYNC = BIT(1),
524};
525
526static void iwl_mvm_release_frames(struct iwl_mvm *mvm,
527 struct ieee80211_sta *sta,
528 struct napi_struct *napi,
529 struct iwl_mvm_baid_data *baid_data,
530 struct iwl_mvm_reorder_buffer *reorder_buf,
531 u16 nssn, u32 flags)
532{
533 struct iwl_mvm_reorder_buf_entry *entries =
534 &baid_data->entries[reorder_buf->queue *
535 baid_data->entries_per_queue];
536 u16 ssn = reorder_buf->head_sn;
537
538 lockdep_assert_held(&reorder_buf->lock);
539
540
541
542
543
544
545
546
547
548 if ((flags & IWL_MVM_RELEASE_FROM_RSS_SYNC) &&
549 ieee80211_sn_less(nssn, ssn))
550 goto set_timer;
551
552
553 if (iwl_mvm_is_sn_less(nssn, ssn, reorder_buf->buf_size))
554 goto set_timer;
555
556 while (iwl_mvm_is_sn_less(ssn, nssn, reorder_buf->buf_size)) {
557 int index = ssn % reorder_buf->buf_size;
558 struct sk_buff_head *skb_list = &entries[index].e.frames;
559 struct sk_buff *skb;
560
561 ssn = ieee80211_sn_inc(ssn);
562 if ((flags & IWL_MVM_RELEASE_SEND_RSS_SYNC) &&
563 (ssn == 2048 || ssn == 0))
564 iwl_mvm_sync_nssn(mvm, baid_data->baid, ssn);
565
566
567
568
569
570
571 while ((skb = __skb_dequeue(skb_list))) {
572 iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb,
573 reorder_buf->queue,
574 sta, false);
575 reorder_buf->num_stored--;
576 }
577 }
578 reorder_buf->head_sn = nssn;
579
580set_timer:
581 if (reorder_buf->num_stored && !reorder_buf->removed) {
582 u16 index = reorder_buf->head_sn % reorder_buf->buf_size;
583
584 while (skb_queue_empty(&entries[index].e.frames))
585 index = (index + 1) % reorder_buf->buf_size;
586
587 mod_timer(&reorder_buf->reorder_timer,
588 entries[index].e.reorder_time + 1 +
589 RX_REORDER_BUF_TIMEOUT_MQ);
590 } else {
591 del_timer(&reorder_buf->reorder_timer);
592 }
593}
594
595void iwl_mvm_reorder_timer_expired(struct timer_list *t)
596{
597 struct iwl_mvm_reorder_buffer *buf = from_timer(buf, t, reorder_timer);
598 struct iwl_mvm_baid_data *baid_data =
599 iwl_mvm_baid_data_from_reorder_buf(buf);
600 struct iwl_mvm_reorder_buf_entry *entries =
601 &baid_data->entries[buf->queue * baid_data->entries_per_queue];
602 int i;
603 u16 sn = 0, index = 0;
604 bool expired = false;
605 bool cont = false;
606
607 spin_lock(&buf->lock);
608
609 if (!buf->num_stored || buf->removed) {
610 spin_unlock(&buf->lock);
611 return;
612 }
613
614 for (i = 0; i < buf->buf_size ; i++) {
615 index = (buf->head_sn + i) % buf->buf_size;
616
617 if (skb_queue_empty(&entries[index].e.frames)) {
618
619
620
621
622 cont = false;
623 continue;
624 }
625 if (!cont &&
626 !time_after(jiffies, entries[index].e.reorder_time +
627 RX_REORDER_BUF_TIMEOUT_MQ))
628 break;
629
630 expired = true;
631
632 cont = true;
633 sn = ieee80211_sn_add(buf->head_sn, i + 1);
634 }
635
636 if (expired) {
637 struct ieee80211_sta *sta;
638 struct iwl_mvm_sta *mvmsta;
639 u8 sta_id = baid_data->sta_id;
640
641 rcu_read_lock();
642 sta = rcu_dereference(buf->mvm->fw_id_to_mac_id[sta_id]);
643 mvmsta = iwl_mvm_sta_from_mac80211(sta);
644
645
646 IWL_DEBUG_HT(buf->mvm,
647 "Releasing expired frames for sta %u, sn %d\n",
648 sta_id, sn);
649 iwl_mvm_event_frame_timeout_callback(buf->mvm, mvmsta->vif,
650 sta, baid_data->tid);
651 iwl_mvm_release_frames(buf->mvm, sta, NULL, baid_data,
652 buf, sn, IWL_MVM_RELEASE_SEND_RSS_SYNC);
653 rcu_read_unlock();
654 } else {
655
656
657
658
659
660 mod_timer(&buf->reorder_timer,
661 entries[index].e.reorder_time +
662 1 + RX_REORDER_BUF_TIMEOUT_MQ);
663 }
664 spin_unlock(&buf->lock);
665}
666
667static void iwl_mvm_del_ba(struct iwl_mvm *mvm, int queue,
668 struct iwl_mvm_delba_data *data)
669{
670 struct iwl_mvm_baid_data *ba_data;
671 struct ieee80211_sta *sta;
672 struct iwl_mvm_reorder_buffer *reorder_buf;
673 u8 baid = data->baid;
674
675 if (WARN_ONCE(baid >= IWL_MAX_BAID, "invalid BAID: %x\n", baid))
676 return;
677
678 rcu_read_lock();
679
680 ba_data = rcu_dereference(mvm->baid_map[baid]);
681 if (WARN_ON_ONCE(!ba_data))
682 goto out;
683
684 sta = rcu_dereference(mvm->fw_id_to_mac_id[ba_data->sta_id]);
685 if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))
686 goto out;
687
688 reorder_buf = &ba_data->reorder_buf[queue];
689
690
691 spin_lock_bh(&reorder_buf->lock);
692 iwl_mvm_release_frames(mvm, sta, NULL, ba_data, reorder_buf,
693 ieee80211_sn_add(reorder_buf->head_sn,
694 reorder_buf->buf_size),
695 0);
696 spin_unlock_bh(&reorder_buf->lock);
697 del_timer_sync(&reorder_buf->reorder_timer);
698
699out:
700 rcu_read_unlock();
701}
702
703static void iwl_mvm_release_frames_from_notif(struct iwl_mvm *mvm,
704 struct napi_struct *napi,
705 u8 baid, u16 nssn, int queue,
706 u32 flags)
707{
708 struct ieee80211_sta *sta;
709 struct iwl_mvm_reorder_buffer *reorder_buf;
710 struct iwl_mvm_baid_data *ba_data;
711
712 IWL_DEBUG_HT(mvm, "Frame release notification for BAID %u, NSSN %d\n",
713 baid, nssn);
714
715 if (WARN_ON_ONCE(baid == IWL_RX_REORDER_DATA_INVALID_BAID ||
716 baid >= ARRAY_SIZE(mvm->baid_map)))
717 return;
718
719 rcu_read_lock();
720
721 ba_data = rcu_dereference(mvm->baid_map[baid]);
722 if (WARN_ON_ONCE(!ba_data))
723 goto out;
724
725 sta = rcu_dereference(mvm->fw_id_to_mac_id[ba_data->sta_id]);
726 if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta)))
727 goto out;
728
729 reorder_buf = &ba_data->reorder_buf[queue];
730
731 spin_lock_bh(&reorder_buf->lock);
732 iwl_mvm_release_frames(mvm, sta, napi, ba_data,
733 reorder_buf, nssn, flags);
734 spin_unlock_bh(&reorder_buf->lock);
735
736out:
737 rcu_read_unlock();
738}
739
740static void iwl_mvm_nssn_sync(struct iwl_mvm *mvm,
741 struct napi_struct *napi, int queue,
742 const struct iwl_mvm_nssn_sync_data *data)
743{
744 iwl_mvm_release_frames_from_notif(mvm, napi, data->baid,
745 data->nssn, queue,
746 IWL_MVM_RELEASE_FROM_RSS_SYNC);
747}
748
749void iwl_mvm_rx_queue_notif(struct iwl_mvm *mvm, struct napi_struct *napi,
750 struct iwl_rx_cmd_buffer *rxb, int queue)
751{
752 struct iwl_rx_packet *pkt = rxb_addr(rxb);
753 struct iwl_rxq_sync_notification *notif;
754 struct iwl_mvm_internal_rxq_notif *internal_notif;
755
756 notif = (void *)pkt->data;
757 internal_notif = (void *)notif->payload;
758
759 if (internal_notif->sync &&
760 mvm->queue_sync_cookie != internal_notif->cookie) {
761 WARN_ONCE(1, "Received expired RX queue sync message\n");
762 return;
763 }
764
765 switch (internal_notif->type) {
766 case IWL_MVM_RXQ_EMPTY:
767 break;
768 case IWL_MVM_RXQ_NOTIF_DEL_BA:
769 iwl_mvm_del_ba(mvm, queue, (void *)internal_notif->data);
770 break;
771 case IWL_MVM_RXQ_NSSN_SYNC:
772 iwl_mvm_nssn_sync(mvm, napi, queue,
773 (void *)internal_notif->data);
774 break;
775 default:
776 WARN_ONCE(1, "Invalid identifier %d", internal_notif->type);
777 }
778
779 if (internal_notif->sync &&
780 !atomic_dec_return(&mvm->queue_sync_counter))
781 wake_up(&mvm->rx_sync_waitq);
782}
783
784
785
786
787
788static bool iwl_mvm_reorder(struct iwl_mvm *mvm,
789 struct napi_struct *napi,
790 int queue,
791 struct ieee80211_sta *sta,
792 struct sk_buff *skb,
793 struct iwl_rx_mpdu_desc *desc)
794{
795 struct ieee80211_hdr *hdr = iwl_mvm_skb_get_hdr(skb);
796 struct iwl_mvm_sta *mvm_sta;
797 struct iwl_mvm_baid_data *baid_data;
798 struct iwl_mvm_reorder_buffer *buffer;
799 struct sk_buff *tail;
800 u32 reorder = le32_to_cpu(desc->reorder_data);
801 bool amsdu = desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU;
802 bool last_subframe =
803 desc->amsdu_info & IWL_RX_MPDU_AMSDU_LAST_SUBFRAME;
804 u8 tid = ieee80211_get_tid(hdr);
805 u8 sub_frame_idx = desc->amsdu_info &
806 IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;
807 struct iwl_mvm_reorder_buf_entry *entries;
808 int index;
809 u16 nssn, sn;
810 u8 baid;
811
812 baid = (reorder & IWL_RX_MPDU_REORDER_BAID_MASK) >>
813 IWL_RX_MPDU_REORDER_BAID_SHIFT;
814
815
816
817
818
819
820
821
822 if (baid == IWL_RX_REORDER_DATA_INVALID_BAID)
823 return false;
824
825
826 if (WARN_ONCE(IS_ERR_OR_NULL(sta),
827 "Got valid BAID without a valid station assigned\n"))
828 return false;
829
830 mvm_sta = iwl_mvm_sta_from_mac80211(sta);
831
832
833 if (!ieee80211_is_back_req(hdr->frame_control) &&
834 (!ieee80211_is_data_qos(hdr->frame_control) ||
835 is_multicast_ether_addr(hdr->addr1)))
836 return false;
837
838 if (unlikely(!ieee80211_is_data_present(hdr->frame_control)))
839 return false;
840
841 baid_data = rcu_dereference(mvm->baid_map[baid]);
842 if (!baid_data) {
843 IWL_DEBUG_RX(mvm,
844 "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d reorder 0x%x\n",
845 baid, reorder);
846 return false;
847 }
848
849 if (WARN(tid != baid_data->tid || mvm_sta->sta_id != baid_data->sta_id,
850 "baid 0x%x is mapped to sta:%d tid:%d, but was received for sta:%d tid:%d\n",
851 baid, baid_data->sta_id, baid_data->tid, mvm_sta->sta_id,
852 tid))
853 return false;
854
855 nssn = reorder & IWL_RX_MPDU_REORDER_NSSN_MASK;
856 sn = (reorder & IWL_RX_MPDU_REORDER_SN_MASK) >>
857 IWL_RX_MPDU_REORDER_SN_SHIFT;
858
859 buffer = &baid_data->reorder_buf[queue];
860 entries = &baid_data->entries[queue * baid_data->entries_per_queue];
861
862 spin_lock_bh(&buffer->lock);
863
864 if (!buffer->valid) {
865 if (reorder & IWL_RX_MPDU_REORDER_BA_OLD_SN) {
866 spin_unlock_bh(&buffer->lock);
867 return false;
868 }
869 buffer->valid = true;
870 }
871
872 if (ieee80211_is_back_req(hdr->frame_control)) {
873 iwl_mvm_release_frames(mvm, sta, napi, baid_data,
874 buffer, nssn, 0);
875 goto drop;
876 }
877
878
879
880
881
882
883
884
885
886
887
888 if (!iwl_mvm_is_sn_less(nssn, buffer->head_sn + buffer->buf_size,
889 buffer->buf_size) ||
890 !ieee80211_sn_less(sn, buffer->head_sn + buffer->buf_size)) {
891 u16 min_sn = ieee80211_sn_less(sn, nssn) ? sn : nssn;
892
893 iwl_mvm_release_frames(mvm, sta, napi, baid_data, buffer,
894 min_sn, IWL_MVM_RELEASE_SEND_RSS_SYNC);
895 }
896
897
898 if (ieee80211_sn_less(sn, buffer->head_sn))
899 goto drop;
900
901
902 if (!buffer->num_stored && ieee80211_sn_less(sn, nssn)) {
903 if (iwl_mvm_is_sn_less(buffer->head_sn, nssn,
904 buffer->buf_size) &&
905 (!amsdu || last_subframe)) {
906
907
908
909
910
911
912
913
914
915
916
917
918 if (sn == 2048 || sn == 0)
919 iwl_mvm_sync_nssn(mvm, baid, sn);
920 buffer->head_sn = nssn;
921 }
922
923 spin_unlock_bh(&buffer->lock);
924 return false;
925 }
926
927
928
929
930
931
932
933
934
935 if (!buffer->num_stored && sn == buffer->head_sn) {
936 if (!amsdu || last_subframe) {
937 if (sn == 2048 || sn == 0)
938 iwl_mvm_sync_nssn(mvm, baid, sn);
939 buffer->head_sn = ieee80211_sn_inc(buffer->head_sn);
940 }
941
942 spin_unlock_bh(&buffer->lock);
943 return false;
944 }
945
946 index = sn % buffer->buf_size;
947
948
949
950
951
952
953
954
955
956 tail = skb_peek_tail(&entries[index].e.frames);
957 if (tail && !amsdu)
958 goto drop;
959 else if (tail && (sn != buffer->last_amsdu ||
960 buffer->last_sub_index >= sub_frame_idx))
961 goto drop;
962
963
964 __skb_queue_tail(&entries[index].e.frames, skb);
965 buffer->num_stored++;
966 entries[index].e.reorder_time = jiffies;
967
968 if (amsdu) {
969 buffer->last_amsdu = sn;
970 buffer->last_sub_index = sub_frame_idx;
971 }
972
973
974
975
976
977
978
979
980
981
982
983
984 if (!amsdu || last_subframe)
985 iwl_mvm_release_frames(mvm, sta, napi, baid_data,
986 buffer, nssn,
987 IWL_MVM_RELEASE_SEND_RSS_SYNC);
988
989 spin_unlock_bh(&buffer->lock);
990 return true;
991
992drop:
993 kfree_skb(skb);
994 spin_unlock_bh(&buffer->lock);
995 return true;
996}
997
998static void iwl_mvm_agg_rx_received(struct iwl_mvm *mvm,
999 u32 reorder_data, u8 baid)
1000{
1001 unsigned long now = jiffies;
1002 unsigned long timeout;
1003 struct iwl_mvm_baid_data *data;
1004
1005 rcu_read_lock();
1006
1007 data = rcu_dereference(mvm->baid_map[baid]);
1008 if (!data) {
1009 IWL_DEBUG_RX(mvm,
1010 "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d reorder 0x%x\n",
1011 baid, reorder_data);
1012 goto out;
1013 }
1014
1015 if (!data->timeout)
1016 goto out;
1017
1018 timeout = data->timeout;
1019
1020
1021
1022
1023
1024
1025 if (time_before(data->last_rx + TU_TO_JIFFIES(timeout), now))
1026
1027 data->last_rx = now;
1028
1029out:
1030 rcu_read_unlock();
1031}
1032
1033static void iwl_mvm_flip_address(u8 *addr)
1034{
1035 int i;
1036 u8 mac_addr[ETH_ALEN];
1037
1038 for (i = 0; i < ETH_ALEN; i++)
1039 mac_addr[i] = addr[ETH_ALEN - i - 1];
1040 ether_addr_copy(addr, mac_addr);
1041}
1042
1043struct iwl_mvm_rx_phy_data {
1044 enum iwl_rx_phy_info_type info_type;
1045 __le32 d0, d1, d2, d3;
1046 __le16 d4;
1047};
1048
1049static void iwl_mvm_decode_he_mu_ext(struct iwl_mvm *mvm,
1050 struct iwl_mvm_rx_phy_data *phy_data,
1051 u32 rate_n_flags,
1052 struct ieee80211_radiotap_he_mu *he_mu)
1053{
1054 u32 phy_data2 = le32_to_cpu(phy_data->d2);
1055 u32 phy_data3 = le32_to_cpu(phy_data->d3);
1056 u16 phy_data4 = le16_to_cpu(phy_data->d4);
1057
1058 if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CRC_OK, phy_data4)) {
1059 he_mu->flags1 |=
1060 cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_RU_KNOWN |
1061 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU_KNOWN);
1062
1063 he_mu->flags1 |=
1064 le16_encode_bits(FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CTR_RU,
1065 phy_data4),
1066 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU);
1067
1068 he_mu->ru_ch1[0] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH1_RU0,
1069 phy_data2);
1070 he_mu->ru_ch1[1] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH1_RU1,
1071 phy_data3);
1072 he_mu->ru_ch1[2] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH1_RU2,
1073 phy_data2);
1074 he_mu->ru_ch1[3] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH1_RU3,
1075 phy_data3);
1076 }
1077
1078 if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH2_CRC_OK, phy_data4) &&
1079 (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) != RATE_MCS_CHAN_WIDTH_20) {
1080 he_mu->flags1 |=
1081 cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_RU_KNOWN |
1082 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_CTR_26T_RU_KNOWN);
1083
1084 he_mu->flags2 |=
1085 le16_encode_bits(FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH2_CTR_RU,
1086 phy_data4),
1087 IEEE80211_RADIOTAP_HE_MU_FLAGS2_CH2_CTR_26T_RU);
1088
1089 he_mu->ru_ch2[0] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH2_RU0,
1090 phy_data2);
1091 he_mu->ru_ch2[1] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH2_RU1,
1092 phy_data3);
1093 he_mu->ru_ch2[2] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH2_RU2,
1094 phy_data2);
1095 he_mu->ru_ch2[3] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH2_RU3,
1096 phy_data3);
1097 }
1098}
1099
1100static void
1101iwl_mvm_decode_he_phy_ru_alloc(struct iwl_mvm_rx_phy_data *phy_data,
1102 u32 rate_n_flags,
1103 struct ieee80211_radiotap_he *he,
1104 struct ieee80211_radiotap_he_mu *he_mu,
1105 struct ieee80211_rx_status *rx_status)
1106{
1107
1108
1109
1110
1111
1112
1113
1114
1115 u8 ru = le32_get_bits(phy_data->d1, IWL_RX_PHY_DATA1_HE_RU_ALLOC_MASK);
1116 u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;
1117 u8 offs = 0;
1118
1119 rx_status->bw = RATE_INFO_BW_HE_RU;
1120
1121 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN);
1122
1123 switch (ru) {
1124 case 0 ... 36:
1125 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_26;
1126 offs = ru;
1127 break;
1128 case 37 ... 52:
1129 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_52;
1130 offs = ru - 37;
1131 break;
1132 case 53 ... 60:
1133 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106;
1134 offs = ru - 53;
1135 break;
1136 case 61 ... 64:
1137 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_242;
1138 offs = ru - 61;
1139 break;
1140 case 65 ... 66:
1141 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_484;
1142 offs = ru - 65;
1143 break;
1144 case 67:
1145 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_996;
1146 break;
1147 case 68:
1148 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_2x996;
1149 break;
1150 }
1151 he->data2 |= le16_encode_bits(offs,
1152 IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET);
1153 he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_KNOWN |
1154 IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET_KNOWN);
1155 if (phy_data->d1 & cpu_to_le32(IWL_RX_PHY_DATA1_HE_RU_ALLOC_SEC80))
1156 he->data2 |=
1157 cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_SEC);
1158
1159#define CHECK_BW(bw) \
1160 BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_ ## bw ## MHZ != \
1161 RATE_MCS_CHAN_WIDTH_##bw >> RATE_MCS_CHAN_WIDTH_POS); \
1162 BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW_ ## bw ## MHZ != \
1163 RATE_MCS_CHAN_WIDTH_##bw >> RATE_MCS_CHAN_WIDTH_POS)
1164 CHECK_BW(20);
1165 CHECK_BW(40);
1166 CHECK_BW(80);
1167 CHECK_BW(160);
1168
1169 if (he_mu)
1170 he_mu->flags2 |=
1171 le16_encode_bits(FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK,
1172 rate_n_flags),
1173 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW);
1174 else if (he_type == RATE_MCS_HE_TYPE_TRIG)
1175 he->data6 |=
1176 cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW_KNOWN) |
1177 le16_encode_bits(FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK,
1178 rate_n_flags),
1179 IEEE80211_RADIOTAP_HE_DATA6_TB_PPDU_BW);
1180}
1181
1182static void iwl_mvm_decode_he_phy_data(struct iwl_mvm *mvm,
1183 struct iwl_mvm_rx_phy_data *phy_data,
1184 struct ieee80211_radiotap_he *he,
1185 struct ieee80211_radiotap_he_mu *he_mu,
1186 struct ieee80211_rx_status *rx_status,
1187 u32 rate_n_flags, int queue)
1188{
1189 switch (phy_data->info_type) {
1190 case IWL_RX_PHY_INFO_TYPE_NONE:
1191 case IWL_RX_PHY_INFO_TYPE_CCK:
1192 case IWL_RX_PHY_INFO_TYPE_OFDM_LGCY:
1193 case IWL_RX_PHY_INFO_TYPE_HT:
1194 case IWL_RX_PHY_INFO_TYPE_VHT_SU:
1195 case IWL_RX_PHY_INFO_TYPE_VHT_MU:
1196 return;
1197 case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
1198 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN |
1199 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE2_KNOWN |
1200 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE3_KNOWN |
1201 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE4_KNOWN);
1202 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,
1203 IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE1),
1204 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE1);
1205 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,
1206 IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE2),
1207 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE2);
1208 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,
1209 IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE3),
1210 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE3);
1211 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d2,
1212 IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE4),
1213 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE4);
1214
1215 case IWL_RX_PHY_INFO_TYPE_HE_SU:
1216 case IWL_RX_PHY_INFO_TYPE_HE_MU:
1217 case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
1218 case IWL_RX_PHY_INFO_TYPE_HE_TB:
1219
1220 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_LDPC_XSYMSEG_KNOWN |
1221 IEEE80211_RADIOTAP_HE_DATA1_DOPPLER_KNOWN |
1222 IEEE80211_RADIOTAP_HE_DATA1_BSS_COLOR_KNOWN);
1223 he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRE_FEC_PAD_KNOWN |
1224 IEEE80211_RADIOTAP_HE_DATA2_PE_DISAMBIG_KNOWN |
1225 IEEE80211_RADIOTAP_HE_DATA2_TXOP_KNOWN |
1226 IEEE80211_RADIOTAP_HE_DATA2_NUM_LTF_SYMS_KNOWN);
1227 he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1228 IWL_RX_PHY_DATA0_HE_BSS_COLOR_MASK),
1229 IEEE80211_RADIOTAP_HE_DATA3_BSS_COLOR);
1230 if (phy_data->info_type != IWL_RX_PHY_INFO_TYPE_HE_TB &&
1231 phy_data->info_type != IWL_RX_PHY_INFO_TYPE_HE_TB_EXT) {
1232 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_UL_DL_KNOWN);
1233 he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1234 IWL_RX_PHY_DATA0_HE_UPLINK),
1235 IEEE80211_RADIOTAP_HE_DATA3_UL_DL);
1236 }
1237 he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1238 IWL_RX_PHY_DATA0_HE_LDPC_EXT_SYM),
1239 IEEE80211_RADIOTAP_HE_DATA3_LDPC_XSYMSEG);
1240 he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1241 IWL_RX_PHY_DATA0_HE_PRE_FEC_PAD_MASK),
1242 IEEE80211_RADIOTAP_HE_DATA5_PRE_FEC_PAD);
1243 he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1244 IWL_RX_PHY_DATA0_HE_PE_DISAMBIG),
1245 IEEE80211_RADIOTAP_HE_DATA5_PE_DISAMBIG);
1246 he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d1,
1247 IWL_RX_PHY_DATA1_HE_LTF_NUM_MASK),
1248 IEEE80211_RADIOTAP_HE_DATA5_NUM_LTF_SYMS);
1249 he->data6 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1250 IWL_RX_PHY_DATA0_HE_TXOP_DUR_MASK),
1251 IEEE80211_RADIOTAP_HE_DATA6_TXOP);
1252 he->data6 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1253 IWL_RX_PHY_DATA0_HE_DOPPLER),
1254 IEEE80211_RADIOTAP_HE_DATA6_DOPPLER);
1255 break;
1256 }
1257
1258 switch (phy_data->info_type) {
1259 case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
1260 case IWL_RX_PHY_INFO_TYPE_HE_MU:
1261 case IWL_RX_PHY_INFO_TYPE_HE_SU:
1262 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN);
1263 he->data4 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1264 IWL_RX_PHY_DATA0_HE_SPATIAL_REUSE_MASK),
1265 IEEE80211_RADIOTAP_HE_DATA4_SU_MU_SPTL_REUSE);
1266 break;
1267 default:
1268
1269 break;
1270 }
1271
1272 switch (phy_data->info_type) {
1273 case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
1274 he_mu->flags1 |=
1275 le16_encode_bits(le16_get_bits(phy_data->d4,
1276 IWL_RX_PHY_DATA4_HE_MU_EXT_SIGB_DCM),
1277 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM);
1278 he_mu->flags1 |=
1279 le16_encode_bits(le16_get_bits(phy_data->d4,
1280 IWL_RX_PHY_DATA4_HE_MU_EXT_SIGB_MCS_MASK),
1281 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS);
1282 he_mu->flags2 |=
1283 le16_encode_bits(le16_get_bits(phy_data->d4,
1284 IWL_RX_PHY_DATA4_HE_MU_EXT_PREAMBLE_PUNC_TYPE_MASK),
1285 IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW);
1286 iwl_mvm_decode_he_mu_ext(mvm, phy_data, rate_n_flags, he_mu);
1287
1288 case IWL_RX_PHY_INFO_TYPE_HE_MU:
1289 he_mu->flags2 |=
1290 le16_encode_bits(le32_get_bits(phy_data->d1,
1291 IWL_RX_PHY_DATA1_HE_MU_SIBG_SYM_OR_USER_NUM_MASK),
1292 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_SYMS_USERS);
1293 he_mu->flags2 |=
1294 le16_encode_bits(le32_get_bits(phy_data->d1,
1295 IWL_RX_PHY_DATA1_HE_MU_SIGB_COMPRESSION),
1296 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_COMP);
1297
1298 case IWL_RX_PHY_INFO_TYPE_HE_TB:
1299 case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
1300 iwl_mvm_decode_he_phy_ru_alloc(phy_data, rate_n_flags,
1301 he, he_mu, rx_status);
1302 break;
1303 case IWL_RX_PHY_INFO_TYPE_HE_SU:
1304 he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BEAM_CHANGE_KNOWN);
1305 he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0,
1306 IWL_RX_PHY_DATA0_HE_BEAM_CHNG),
1307 IEEE80211_RADIOTAP_HE_DATA3_BEAM_CHANGE);
1308 break;
1309 default:
1310
1311 break;
1312 }
1313}
1314
1315static void iwl_mvm_rx_he(struct iwl_mvm *mvm, struct sk_buff *skb,
1316 struct iwl_mvm_rx_phy_data *phy_data,
1317 u32 rate_n_flags, u16 phy_info, int queue)
1318{
1319 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
1320 struct ieee80211_radiotap_he *he = NULL;
1321 struct ieee80211_radiotap_he_mu *he_mu = NULL;
1322 u32 he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;
1323 u8 stbc, ltf;
1324 static const struct ieee80211_radiotap_he known = {
1325 .data1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_DATA_MCS_KNOWN |
1326 IEEE80211_RADIOTAP_HE_DATA1_DATA_DCM_KNOWN |
1327 IEEE80211_RADIOTAP_HE_DATA1_STBC_KNOWN |
1328 IEEE80211_RADIOTAP_HE_DATA1_CODING_KNOWN),
1329 .data2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_GI_KNOWN |
1330 IEEE80211_RADIOTAP_HE_DATA2_TXBF_KNOWN),
1331 };
1332 static const struct ieee80211_radiotap_he_mu mu_known = {
1333 .flags1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS_KNOWN |
1334 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM_KNOWN |
1335 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_SYMS_USERS_KNOWN |
1336 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_COMP_KNOWN),
1337 .flags2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW_KNOWN |
1338 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN),
1339 };
1340
1341 he = skb_put_data(skb, &known, sizeof(known));
1342 rx_status->flag |= RX_FLAG_RADIOTAP_HE;
1343
1344 if (phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU ||
1345 phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU_EXT) {
1346 he_mu = skb_put_data(skb, &mu_known, sizeof(mu_known));
1347 rx_status->flag |= RX_FLAG_RADIOTAP_HE_MU;
1348 }
1349
1350
1351 if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
1352 rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
1353 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
1354 if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_HE_DELIM_EOF))
1355 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
1356 }
1357
1358 if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
1359 iwl_mvm_decode_he_phy_data(mvm, phy_data, he, he_mu, rx_status,
1360 rate_n_flags, queue);
1361
1362
1363 if (!queue && (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) &&
1364 (phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
1365 bool toggle_bit = phy_info & IWL_RX_MPDU_PHY_AMPDU_TOGGLE;
1366
1367
1368 if (toggle_bit != mvm->ampdu_toggle) {
1369 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
1370 if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_HE_DELIM_EOF))
1371 rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
1372 }
1373 }
1374
1375 if (he_type == RATE_MCS_HE_TYPE_EXT_SU &&
1376 rate_n_flags & RATE_MCS_HE_106T_MSK) {
1377 rx_status->bw = RATE_INFO_BW_HE_RU;
1378 rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106;
1379 }
1380
1381
1382 if (he_type == RATE_MCS_HE_TYPE_SU ||
1383 he_type == RATE_MCS_HE_TYPE_EXT_SU)
1384 he->data1 |=
1385 cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN);
1386
1387 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >> RATE_MCS_STBC_POS;
1388 rx_status->nss =
1389 ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >>
1390 RATE_VHT_MCS_NSS_POS) + 1;
1391 rx_status->rate_idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK;
1392 rx_status->encoding = RX_ENC_HE;
1393 rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
1394 if (rate_n_flags & RATE_MCS_BF_MSK)
1395 rx_status->enc_flags |= RX_ENC_FLAG_BF;
1396
1397 rx_status->he_dcm =
1398 !!(rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK);
1399
1400#define CHECK_TYPE(F) \
1401 BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA1_FORMAT_ ## F != \
1402 (RATE_MCS_HE_TYPE_ ## F >> RATE_MCS_HE_TYPE_POS))
1403
1404 CHECK_TYPE(SU);
1405 CHECK_TYPE(EXT_SU);
1406 CHECK_TYPE(MU);
1407 CHECK_TYPE(TRIG);
1408
1409 he->data1 |= cpu_to_le16(he_type >> RATE_MCS_HE_TYPE_POS);
1410
1411 if (rate_n_flags & RATE_MCS_BF_MSK)
1412 he->data5 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA5_TXBF);
1413
1414 switch ((rate_n_flags & RATE_MCS_HE_GI_LTF_MSK) >>
1415 RATE_MCS_HE_GI_LTF_POS) {
1416 case 0:
1417 if (he_type == RATE_MCS_HE_TYPE_TRIG)
1418 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
1419 else
1420 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
1421 if (he_type == RATE_MCS_HE_TYPE_MU)
1422 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1423 else
1424 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_1X;
1425 break;
1426 case 1:
1427 if (he_type == RATE_MCS_HE_TYPE_TRIG)
1428 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
1429 else
1430 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
1431 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;
1432 break;
1433 case 2:
1434 if (he_type == RATE_MCS_HE_TYPE_TRIG) {
1435 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
1436 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1437 } else {
1438 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
1439 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;
1440 }
1441 break;
1442 case 3:
1443 if ((he_type == RATE_MCS_HE_TYPE_SU ||
1444 he_type == RATE_MCS_HE_TYPE_EXT_SU) &&
1445 rate_n_flags & RATE_MCS_SGI_MSK)
1446 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
1447 else
1448 rx_status->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
1449 ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
1450 break;
1451 }
1452
1453 he->data5 |= le16_encode_bits(ltf,
1454 IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE);
1455}
1456
1457static void iwl_mvm_decode_lsig(struct sk_buff *skb,
1458 struct iwl_mvm_rx_phy_data *phy_data)
1459{
1460 struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
1461 struct ieee80211_radiotap_lsig *lsig;
1462
1463 switch (phy_data->info_type) {
1464 case IWL_RX_PHY_INFO_TYPE_HT:
1465 case IWL_RX_PHY_INFO_TYPE_VHT_SU:
1466 case IWL_RX_PHY_INFO_TYPE_VHT_MU:
1467 case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
1468 case IWL_RX_PHY_INFO_TYPE_HE_SU:
1469 case IWL_RX_PHY_INFO_TYPE_HE_MU:
1470 case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
1471 case IWL_RX_PHY_INFO_TYPE_HE_TB:
1472 lsig = skb_put(skb, sizeof(*lsig));
1473 lsig->data1 = cpu_to_le16(IEEE80211_RADIOTAP_LSIG_DATA1_LENGTH_KNOWN);
1474 lsig->data2 = le16_encode_bits(le32_get_bits(phy_data->d1,
1475 IWL_RX_PHY_DATA1_LSIG_LEN_MASK),
1476 IEEE80211_RADIOTAP_LSIG_DATA2_LENGTH);
1477 rx_status->flag |= RX_FLAG_RADIOTAP_LSIG;
1478 break;
1479 default:
1480 break;
1481 }
1482}
1483
1484void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
1485 struct iwl_rx_cmd_buffer *rxb, int queue)
1486{
1487 struct ieee80211_rx_status *rx_status;
1488 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1489 struct iwl_rx_mpdu_desc *desc = (void *)pkt->data;
1490 struct ieee80211_hdr *hdr;
1491 u32 len = le16_to_cpu(desc->mpdu_len);
1492 u32 rate_n_flags, gp2_on_air_rise;
1493 u16 phy_info = le16_to_cpu(desc->phy_info);
1494 struct ieee80211_sta *sta = NULL;
1495 struct sk_buff *skb;
1496 u8 crypt_len = 0, channel, energy_a, energy_b;
1497 size_t desc_size;
1498 struct iwl_mvm_rx_phy_data phy_data = {
1499 .d4 = desc->phy_data4,
1500 .info_type = IWL_RX_PHY_INFO_TYPE_NONE,
1501 };
1502 bool csi = false;
1503
1504 if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))
1505 return;
1506
1507 if (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560) {
1508 rate_n_flags = le32_to_cpu(desc->v3.rate_n_flags);
1509 channel = desc->v3.channel;
1510 gp2_on_air_rise = le32_to_cpu(desc->v3.gp2_on_air_rise);
1511 energy_a = desc->v3.energy_a;
1512 energy_b = desc->v3.energy_b;
1513 desc_size = sizeof(*desc);
1514
1515 phy_data.d0 = desc->v3.phy_data0;
1516 phy_data.d1 = desc->v3.phy_data1;
1517 phy_data.d2 = desc->v3.phy_data2;
1518 phy_data.d3 = desc->v3.phy_data3;
1519 } else {
1520 rate_n_flags = le32_to_cpu(desc->v1.rate_n_flags);
1521 channel = desc->v1.channel;
1522 gp2_on_air_rise = le32_to_cpu(desc->v1.gp2_on_air_rise);
1523 energy_a = desc->v1.energy_a;
1524 energy_b = desc->v1.energy_b;
1525 desc_size = IWL_RX_DESC_SIZE_V1;
1526
1527 phy_data.d0 = desc->v1.phy_data0;
1528 phy_data.d1 = desc->v1.phy_data1;
1529 phy_data.d2 = desc->v1.phy_data2;
1530 phy_data.d3 = desc->v1.phy_data3;
1531 }
1532
1533 if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD)
1534 phy_data.info_type =
1535 le32_get_bits(phy_data.d1,
1536 IWL_RX_PHY_DATA1_INFO_TYPE_MASK);
1537
1538 hdr = (void *)(pkt->data + desc_size);
1539
1540
1541
1542 skb = alloc_skb(128, GFP_ATOMIC);
1543 if (!skb) {
1544 IWL_ERR(mvm, "alloc_skb failed\n");
1545 return;
1546 }
1547
1548 if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) {
1549
1550
1551
1552
1553
1554
1555 skb_reserve(skb, 2);
1556 }
1557
1558 rx_status = IEEE80211_SKB_RXCB(skb);
1559
1560
1561 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
1562 case RATE_MCS_CHAN_WIDTH_20:
1563 break;
1564 case RATE_MCS_CHAN_WIDTH_40:
1565 rx_status->bw = RATE_INFO_BW_40;
1566 break;
1567 case RATE_MCS_CHAN_WIDTH_80:
1568 rx_status->bw = RATE_INFO_BW_80;
1569 break;
1570 case RATE_MCS_CHAN_WIDTH_160:
1571 rx_status->bw = RATE_INFO_BW_160;
1572 break;
1573 }
1574
1575 if (rate_n_flags & RATE_MCS_HE_MSK)
1576 iwl_mvm_rx_he(mvm, skb, &phy_data, rate_n_flags,
1577 phy_info, queue);
1578
1579 iwl_mvm_decode_lsig(skb, &phy_data);
1580
1581 rx_status = IEEE80211_SKB_RXCB(skb);
1582
1583 if (iwl_mvm_rx_crypto(mvm, hdr, rx_status, phy_info, desc,
1584 le32_to_cpu(pkt->len_n_flags), queue,
1585 &crypt_len)) {
1586 kfree_skb(skb);
1587 return;
1588 }
1589
1590
1591
1592
1593
1594 if (!(desc->status & cpu_to_le16(IWL_RX_MPDU_STATUS_CRC_OK)) ||
1595 !(desc->status & cpu_to_le16(IWL_RX_MPDU_STATUS_OVERRUN_OK))) {
1596 IWL_DEBUG_RX(mvm, "Bad CRC or FIFO: 0x%08X.\n",
1597 le16_to_cpu(desc->status));
1598 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
1599 }
1600
1601 if (rate_n_flags & RATE_MCS_CCK_MSK &&
1602 phy_info & IWL_RX_MPDU_PHY_SHORT_PREAMBLE)
1603 rx_status->enc_flags |= RX_ENC_FLAG_SHORTPRE;
1604
1605 if (likely(!(phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD))) {
1606 u64 tsf_on_air_rise;
1607
1608 if (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560)
1609 tsf_on_air_rise = le64_to_cpu(desc->v3.tsf_on_air_rise);
1610 else
1611 tsf_on_air_rise = le64_to_cpu(desc->v1.tsf_on_air_rise);
1612
1613 rx_status->mactime = tsf_on_air_rise;
1614
1615 rx_status->flag |= RX_FLAG_MACTIME_PLCP_START;
1616 }
1617
1618 rx_status->device_timestamp = gp2_on_air_rise;
1619 rx_status->band = channel > 14 ? NL80211_BAND_5GHZ :
1620 NL80211_BAND_2GHZ;
1621 rx_status->freq = ieee80211_channel_to_frequency(channel,
1622 rx_status->band);
1623 iwl_mvm_get_signal_strength(mvm, rx_status, rate_n_flags, energy_a,
1624 energy_b);
1625
1626
1627 if (!queue && (phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
1628 bool toggle_bit = phy_info & IWL_RX_MPDU_PHY_AMPDU_TOGGLE;
1629
1630 rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
1631
1632
1633
1634
1635
1636 if (toggle_bit != mvm->ampdu_toggle) {
1637 mvm->ampdu_ref++;
1638 if (mvm->ampdu_ref == 0)
1639 mvm->ampdu_ref++;
1640 mvm->ampdu_toggle = toggle_bit;
1641 }
1642 rx_status->ampdu_reference = mvm->ampdu_ref;
1643 }
1644
1645 if (unlikely(mvm->monitor_on))
1646 iwl_mvm_add_rtap_sniffer_config(mvm, skb);
1647
1648 rcu_read_lock();
1649
1650 if (desc->status & cpu_to_le16(IWL_RX_MPDU_STATUS_SRC_STA_FOUND)) {
1651 u8 id = desc->sta_id_flags & IWL_RX_MPDU_SIF_STA_ID_MASK;
1652
1653 if (!WARN_ON_ONCE(id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) {
1654 sta = rcu_dereference(mvm->fw_id_to_mac_id[id]);
1655 if (IS_ERR(sta))
1656 sta = NULL;
1657 }
1658 } else if (!is_multicast_ether_addr(hdr->addr2)) {
1659
1660
1661
1662
1663 sta = ieee80211_find_sta_by_ifaddr(mvm->hw, hdr->addr2, NULL);
1664 }
1665
1666 if (sta) {
1667 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1668 struct ieee80211_vif *tx_blocked_vif =
1669 rcu_dereference(mvm->csa_tx_blocked_vif);
1670 u8 baid = (u8)((le32_to_cpu(desc->reorder_data) &
1671 IWL_RX_MPDU_REORDER_BAID_MASK) >>
1672 IWL_RX_MPDU_REORDER_BAID_SHIFT);
1673 struct iwl_fw_dbg_trigger_tlv *trig;
1674 struct ieee80211_vif *vif = mvmsta->vif;
1675
1676 if (!mvm->tcm.paused && len >= sizeof(*hdr) &&
1677 !is_multicast_ether_addr(hdr->addr1) &&
1678 ieee80211_is_data(hdr->frame_control) &&
1679 time_after(jiffies, mvm->tcm.ts + MVM_TCM_PERIOD))
1680 schedule_delayed_work(&mvm->tcm.work, 0);
1681
1682
1683
1684
1685
1686
1687 if (unlikely(tx_blocked_vif) && tx_blocked_vif == vif) {
1688 struct iwl_mvm_vif *mvmvif =
1689 iwl_mvm_vif_from_mac80211(tx_blocked_vif);
1690
1691 if (mvmvif->csa_target_freq == rx_status->freq)
1692 iwl_mvm_sta_modify_disable_tx_ap(mvm, sta,
1693 false);
1694 }
1695
1696 rs_update_last_rssi(mvm, mvmsta, rx_status);
1697
1698 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt,
1699 ieee80211_vif_to_wdev(vif),
1700 FW_DBG_TRIGGER_RSSI);
1701
1702 if (trig && ieee80211_is_beacon(hdr->frame_control)) {
1703 struct iwl_fw_dbg_trigger_low_rssi *rssi_trig;
1704 s32 rssi;
1705
1706 rssi_trig = (void *)trig->data;
1707 rssi = le32_to_cpu(rssi_trig->rssi);
1708
1709 if (rx_status->signal < rssi)
1710 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
1711 NULL);
1712 }
1713
1714 if (ieee80211_is_data(hdr->frame_control))
1715 iwl_mvm_rx_csum(sta, skb, desc);
1716
1717 if (iwl_mvm_is_dup(sta, queue, rx_status, hdr, desc)) {
1718 kfree_skb(skb);
1719 goto out;
1720 }
1721
1722
1723
1724
1725
1726
1727
1728 if ((desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) &&
1729 !WARN_ON(!ieee80211_is_data_qos(hdr->frame_control))) {
1730 u8 *qc = ieee80211_get_qos_ctl(hdr);
1731
1732 *qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
1733
1734 if (mvm->trans->cfg->device_family ==
1735 IWL_DEVICE_FAMILY_9000) {
1736 iwl_mvm_flip_address(hdr->addr3);
1737
1738 if (ieee80211_has_a4(hdr->frame_control))
1739 iwl_mvm_flip_address(hdr->addr4);
1740 }
1741 }
1742 if (baid != IWL_RX_REORDER_DATA_INVALID_BAID) {
1743 u32 reorder_data = le32_to_cpu(desc->reorder_data);
1744
1745 iwl_mvm_agg_rx_received(mvm, reorder_data, baid);
1746 }
1747 }
1748
1749 if (!(rate_n_flags & RATE_MCS_CCK_MSK) &&
1750 rate_n_flags & RATE_MCS_SGI_MSK)
1751 rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
1752 if (rate_n_flags & RATE_HT_MCS_GF_MSK)
1753 rx_status->enc_flags |= RX_ENC_FLAG_HT_GF;
1754 if (rate_n_flags & RATE_MCS_LDPC_MSK)
1755 rx_status->enc_flags |= RX_ENC_FLAG_LDPC;
1756 if (rate_n_flags & RATE_MCS_HT_MSK) {
1757 u8 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >>
1758 RATE_MCS_STBC_POS;
1759 rx_status->encoding = RX_ENC_HT;
1760 rx_status->rate_idx = rate_n_flags & RATE_HT_MCS_INDEX_MSK;
1761 rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
1762 } else if (rate_n_flags & RATE_MCS_VHT_MSK) {
1763 u8 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >>
1764 RATE_MCS_STBC_POS;
1765 rx_status->nss =
1766 ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >>
1767 RATE_VHT_MCS_NSS_POS) + 1;
1768 rx_status->rate_idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK;
1769 rx_status->encoding = RX_ENC_VHT;
1770 rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
1771 if (rate_n_flags & RATE_MCS_BF_MSK)
1772 rx_status->enc_flags |= RX_ENC_FLAG_BF;
1773 } else if (!(rate_n_flags & RATE_MCS_HE_MSK)) {
1774 int rate = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags,
1775 rx_status->band);
1776
1777 if (WARN(rate < 0 || rate > 0xFF,
1778 "Invalid rate flags 0x%x, band %d,\n",
1779 rate_n_flags, rx_status->band)) {
1780 kfree_skb(skb);
1781 goto out;
1782 }
1783 rx_status->rate_idx = rate;
1784 }
1785
1786
1787 if (!queue) {
1788 if (unlikely((ieee80211_is_beacon(hdr->frame_control) ||
1789 ieee80211_is_probe_resp(hdr->frame_control)) &&
1790 mvm->sched_scan_pass_all ==
1791 SCHED_SCAN_PASS_ALL_ENABLED))
1792 mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_FOUND;
1793
1794 if (unlikely(ieee80211_is_beacon(hdr->frame_control) ||
1795 ieee80211_is_probe_resp(hdr->frame_control)))
1796 rx_status->boottime_ns = ktime_get_boottime_ns();
1797 }
1798
1799 if (iwl_mvm_create_skb(mvm, skb, hdr, len, crypt_len, rxb)) {
1800 kfree_skb(skb);
1801 goto out;
1802 }
1803
1804 if (!iwl_mvm_reorder(mvm, napi, queue, sta, skb, desc))
1805 iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb, queue,
1806 sta, csi);
1807out:
1808 rcu_read_unlock();
1809}
1810
1811void iwl_mvm_rx_monitor_no_data(struct iwl_mvm *mvm, struct napi_struct *napi,
1812 struct iwl_rx_cmd_buffer *rxb, int queue)
1813{
1814 struct ieee80211_rx_status *rx_status;
1815 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1816 struct iwl_rx_no_data *desc = (void *)pkt->data;
1817 u32 rate_n_flags = le32_to_cpu(desc->rate);
1818 u32 gp2_on_air_rise = le32_to_cpu(desc->on_air_rise_time);
1819 u32 rssi = le32_to_cpu(desc->rssi);
1820 u32 info_type = le32_to_cpu(desc->info) & RX_NO_DATA_INFO_TYPE_MSK;
1821 u16 phy_info = IWL_RX_MPDU_PHY_TSF_OVERLOAD;
1822 struct ieee80211_sta *sta = NULL;
1823 struct sk_buff *skb;
1824 u8 channel, energy_a, energy_b;
1825 struct iwl_mvm_rx_phy_data phy_data = {
1826 .d0 = desc->phy_info[0],
1827 .info_type = IWL_RX_PHY_INFO_TYPE_NONE,
1828 };
1829
1830 if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))
1831 return;
1832
1833 energy_a = (rssi & RX_NO_DATA_CHAIN_A_MSK) >> RX_NO_DATA_CHAIN_A_POS;
1834 energy_b = (rssi & RX_NO_DATA_CHAIN_B_MSK) >> RX_NO_DATA_CHAIN_B_POS;
1835 channel = (rssi & RX_NO_DATA_CHANNEL_MSK) >> RX_NO_DATA_CHANNEL_POS;
1836
1837 phy_data.info_type =
1838 le32_get_bits(desc->phy_info[1],
1839 IWL_RX_PHY_DATA1_INFO_TYPE_MASK);
1840
1841
1842
1843
1844 skb = alloc_skb(128, GFP_ATOMIC);
1845 if (!skb) {
1846 IWL_ERR(mvm, "alloc_skb failed\n");
1847 return;
1848 }
1849
1850 rx_status = IEEE80211_SKB_RXCB(skb);
1851
1852
1853 rx_status->flag |= RX_FLAG_NO_PSDU;
1854
1855 switch (info_type) {
1856 case RX_NO_DATA_INFO_TYPE_NDP:
1857 rx_status->zero_length_psdu_type =
1858 IEEE80211_RADIOTAP_ZERO_LEN_PSDU_SOUNDING;
1859 break;
1860 case RX_NO_DATA_INFO_TYPE_MU_UNMATCHED:
1861 case RX_NO_DATA_INFO_TYPE_HE_TB_UNMATCHED:
1862 rx_status->zero_length_psdu_type =
1863 IEEE80211_RADIOTAP_ZERO_LEN_PSDU_NOT_CAPTURED;
1864 break;
1865 default:
1866 rx_status->zero_length_psdu_type =
1867 IEEE80211_RADIOTAP_ZERO_LEN_PSDU_VENDOR;
1868 break;
1869 }
1870
1871
1872 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
1873 case RATE_MCS_CHAN_WIDTH_20:
1874 break;
1875 case RATE_MCS_CHAN_WIDTH_40:
1876 rx_status->bw = RATE_INFO_BW_40;
1877 break;
1878 case RATE_MCS_CHAN_WIDTH_80:
1879 rx_status->bw = RATE_INFO_BW_80;
1880 break;
1881 case RATE_MCS_CHAN_WIDTH_160:
1882 rx_status->bw = RATE_INFO_BW_160;
1883 break;
1884 }
1885
1886 if (rate_n_flags & RATE_MCS_HE_MSK)
1887 iwl_mvm_rx_he(mvm, skb, &phy_data, rate_n_flags,
1888 phy_info, queue);
1889
1890 iwl_mvm_decode_lsig(skb, &phy_data);
1891
1892 rx_status->device_timestamp = gp2_on_air_rise;
1893 rx_status->band = channel > 14 ? NL80211_BAND_5GHZ :
1894 NL80211_BAND_2GHZ;
1895 rx_status->freq = ieee80211_channel_to_frequency(channel,
1896 rx_status->band);
1897 iwl_mvm_get_signal_strength(mvm, rx_status, rate_n_flags, energy_a,
1898 energy_b);
1899
1900 rcu_read_lock();
1901
1902 if (!(rate_n_flags & RATE_MCS_CCK_MSK) &&
1903 rate_n_flags & RATE_MCS_SGI_MSK)
1904 rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
1905 if (rate_n_flags & RATE_HT_MCS_GF_MSK)
1906 rx_status->enc_flags |= RX_ENC_FLAG_HT_GF;
1907 if (rate_n_flags & RATE_MCS_LDPC_MSK)
1908 rx_status->enc_flags |= RX_ENC_FLAG_LDPC;
1909 if (rate_n_flags & RATE_MCS_HT_MSK) {
1910 u8 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >>
1911 RATE_MCS_STBC_POS;
1912 rx_status->encoding = RX_ENC_HT;
1913 rx_status->rate_idx = rate_n_flags & RATE_HT_MCS_INDEX_MSK;
1914 rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
1915 } else if (rate_n_flags & RATE_MCS_VHT_MSK) {
1916 u8 stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >>
1917 RATE_MCS_STBC_POS;
1918 rx_status->rate_idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK;
1919 rx_status->encoding = RX_ENC_VHT;
1920 rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
1921 if (rate_n_flags & RATE_MCS_BF_MSK)
1922 rx_status->enc_flags |= RX_ENC_FLAG_BF;
1923
1924
1925
1926
1927
1928 rx_status->nss =
1929 le32_get_bits(desc->rx_vec[0],
1930 RX_NO_DATA_RX_VEC0_VHT_NSTS_MSK) + 1;
1931 } else if (rate_n_flags & RATE_MCS_HE_MSK) {
1932 rx_status->nss =
1933 le32_get_bits(desc->rx_vec[0],
1934 RX_NO_DATA_RX_VEC0_HE_NSTS_MSK) + 1;
1935 } else {
1936 int rate = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags,
1937 rx_status->band);
1938
1939 if (WARN(rate < 0 || rate > 0xFF,
1940 "Invalid rate flags 0x%x, band %d,\n",
1941 rate_n_flags, rx_status->band)) {
1942 kfree_skb(skb);
1943 goto out;
1944 }
1945 rx_status->rate_idx = rate;
1946 }
1947
1948 ieee80211_rx_napi(mvm->hw, sta, skb, napi);
1949out:
1950 rcu_read_unlock();
1951}
1952
1953void iwl_mvm_rx_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi,
1954 struct iwl_rx_cmd_buffer *rxb, int queue)
1955{
1956 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1957 struct iwl_frame_release *release = (void *)pkt->data;
1958
1959 iwl_mvm_release_frames_from_notif(mvm, napi, release->baid,
1960 le16_to_cpu(release->nssn),
1961 queue, 0);
1962}
1963