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64#include <linux/ieee80211.h>
65#include <linux/etherdevice.h>
66#include <linux/tcp.h>
67#include <net/ip.h>
68#include <net/ipv6.h>
69
70#include "iwl-trans.h"
71#include "iwl-eeprom-parse.h"
72#include "mvm.h"
73#include "sta.h"
74
75static void
76iwl_mvm_bar_check_trigger(struct iwl_mvm *mvm, const u8 *addr,
77 u16 tid, u16 ssn)
78{
79 struct iwl_fw_dbg_trigger_tlv *trig;
80 struct iwl_fw_dbg_trigger_ba *ba_trig;
81
82 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, FW_DBG_TRIGGER_BA);
83 if (!trig)
84 return;
85
86 ba_trig = (void *)trig->data;
87
88 if (!(le16_to_cpu(ba_trig->tx_bar) & BIT(tid)))
89 return;
90
91 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
92 "BAR sent to %pM, tid %d, ssn %d",
93 addr, tid, ssn);
94}
95
96#define OPT_HDR(type, skb, off) \
97 (type *)(skb_network_header(skb) + (off))
98
99static u16 iwl_mvm_tx_csum(struct iwl_mvm *mvm, struct sk_buff *skb,
100 struct ieee80211_hdr *hdr,
101 struct ieee80211_tx_info *info,
102 u16 offload_assist)
103{
104#if IS_ENABLED(CONFIG_INET)
105 u16 mh_len = ieee80211_hdrlen(hdr->frame_control);
106 u8 protocol = 0;
107
108
109
110
111
112 if (skb->ip_summed != CHECKSUM_PARTIAL || IWL_MVM_SW_TX_CSUM_OFFLOAD)
113 goto out;
114
115
116 if (WARN_ONCE(!(mvm->hw->netdev_features & IWL_TX_CSUM_NETIF_FLAGS) ||
117 (skb->protocol != htons(ETH_P_IP) &&
118 skb->protocol != htons(ETH_P_IPV6)),
119 "No support for requested checksum\n")) {
120 skb_checksum_help(skb);
121 goto out;
122 }
123
124 if (skb->protocol == htons(ETH_P_IP)) {
125 protocol = ip_hdr(skb)->protocol;
126 } else {
127#if IS_ENABLED(CONFIG_IPV6)
128 struct ipv6hdr *ipv6h =
129 (struct ipv6hdr *)skb_network_header(skb);
130 unsigned int off = sizeof(*ipv6h);
131
132 protocol = ipv6h->nexthdr;
133 while (protocol != NEXTHDR_NONE && ipv6_ext_hdr(protocol)) {
134 struct ipv6_opt_hdr *hp;
135
136
137 if (protocol != NEXTHDR_ROUTING &&
138 protocol != NEXTHDR_HOP &&
139 protocol != NEXTHDR_DEST) {
140 skb_checksum_help(skb);
141 goto out;
142 }
143
144 hp = OPT_HDR(struct ipv6_opt_hdr, skb, off);
145 protocol = hp->nexthdr;
146 off += ipv6_optlen(hp);
147 }
148
149#endif
150 }
151
152 if (protocol != IPPROTO_TCP && protocol != IPPROTO_UDP) {
153 WARN_ON_ONCE(1);
154 skb_checksum_help(skb);
155 goto out;
156 }
157
158
159 offload_assist |= BIT(TX_CMD_OFFLD_L4_EN);
160
161
162
163
164
165
166 offload_assist |= (4 << TX_CMD_OFFLD_IP_HDR);
167
168
169 if (skb->protocol == htons(ETH_P_IP) &&
170 (offload_assist & BIT(TX_CMD_OFFLD_AMSDU))) {
171 ip_hdr(skb)->check = 0;
172 offload_assist |= BIT(TX_CMD_OFFLD_L3_EN);
173 }
174
175
176 if (protocol == IPPROTO_TCP)
177 tcp_hdr(skb)->check = 0;
178 else
179 udp_hdr(skb)->check = 0;
180
181
182
183
184
185
186 if (!iwl_mvm_has_new_tx_api(mvm) && info->control.hw_key &&
187 info->control.hw_key->cipher != WLAN_CIPHER_SUITE_WEP40 &&
188 info->control.hw_key->cipher != WLAN_CIPHER_SUITE_WEP104)
189 mh_len += info->control.hw_key->iv_len;
190 mh_len /= 2;
191 offload_assist |= mh_len << TX_CMD_OFFLD_MH_SIZE;
192
193out:
194#endif
195 return offload_assist;
196}
197
198
199
200
201void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb,
202 struct iwl_tx_cmd *tx_cmd,
203 struct ieee80211_tx_info *info, u8 sta_id)
204{
205 struct ieee80211_hdr *hdr = (void *)skb->data;
206 __le16 fc = hdr->frame_control;
207 u32 tx_flags = le32_to_cpu(tx_cmd->tx_flags);
208 u32 len = skb->len + FCS_LEN;
209 u16 offload_assist = 0;
210 u8 ac;
211
212 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) ||
213 (ieee80211_is_probe_resp(fc) &&
214 !is_multicast_ether_addr(hdr->addr1)))
215 tx_flags |= TX_CMD_FLG_ACK;
216 else
217 tx_flags &= ~TX_CMD_FLG_ACK;
218
219 if (ieee80211_is_probe_resp(fc))
220 tx_flags |= TX_CMD_FLG_TSF;
221
222 if (ieee80211_has_morefrags(fc))
223 tx_flags |= TX_CMD_FLG_MORE_FRAG;
224
225 if (ieee80211_is_data_qos(fc)) {
226 u8 *qc = ieee80211_get_qos_ctl(hdr);
227 tx_cmd->tid_tspec = qc[0] & 0xf;
228 tx_flags &= ~TX_CMD_FLG_SEQ_CTL;
229 if (*qc & IEEE80211_QOS_CTL_A_MSDU_PRESENT)
230 offload_assist |= BIT(TX_CMD_OFFLD_AMSDU);
231 } else if (ieee80211_is_back_req(fc)) {
232 struct ieee80211_bar *bar = (void *)skb->data;
233 u16 control = le16_to_cpu(bar->control);
234 u16 ssn = le16_to_cpu(bar->start_seq_num);
235
236 tx_flags |= TX_CMD_FLG_ACK | TX_CMD_FLG_BAR;
237 tx_cmd->tid_tspec = (control &
238 IEEE80211_BAR_CTRL_TID_INFO_MASK) >>
239 IEEE80211_BAR_CTRL_TID_INFO_SHIFT;
240 WARN_ON_ONCE(tx_cmd->tid_tspec >= IWL_MAX_TID_COUNT);
241 iwl_mvm_bar_check_trigger(mvm, bar->ra, tx_cmd->tid_tspec,
242 ssn);
243 } else {
244 if (ieee80211_is_data(fc))
245 tx_cmd->tid_tspec = IWL_TID_NON_QOS;
246 else
247 tx_cmd->tid_tspec = IWL_MAX_TID_COUNT;
248
249 if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)
250 tx_flags |= TX_CMD_FLG_SEQ_CTL;
251 else
252 tx_flags &= ~TX_CMD_FLG_SEQ_CTL;
253 }
254
255
256 if (tx_cmd->tid_tspec < IWL_MAX_TID_COUNT)
257 ac = tid_to_mac80211_ac[tx_cmd->tid_tspec];
258 else
259 ac = tid_to_mac80211_ac[0];
260
261 tx_flags |= iwl_mvm_bt_coex_tx_prio(mvm, hdr, info, ac) <<
262 TX_CMD_FLG_BT_PRIO_POS;
263
264 if (ieee80211_is_mgmt(fc)) {
265 if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
266 tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_ASSOC);
267 else if (ieee80211_is_action(fc))
268 tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_NONE);
269 else
270 tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_MGMT);
271
272
273
274
275 WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_AMPDU);
276 } else if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO) {
277 tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_MGMT);
278 } else {
279 tx_cmd->pm_frame_timeout = cpu_to_le16(PM_FRAME_NONE);
280 }
281
282 if (ieee80211_is_data(fc) && len > mvm->rts_threshold &&
283 !is_multicast_ether_addr(hdr->addr1))
284 tx_flags |= TX_CMD_FLG_PROT_REQUIRE;
285
286 if (fw_has_capa(&mvm->fw->ucode_capa,
287 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT) &&
288 ieee80211_action_contains_tpc(skb))
289 tx_flags |= TX_CMD_FLG_WRITE_TX_POWER;
290
291 tx_cmd->tx_flags = cpu_to_le32(tx_flags);
292
293 tx_cmd->len = cpu_to_le16((u16)skb->len);
294 tx_cmd->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE);
295 tx_cmd->sta_id = sta_id;
296
297
298 if (ieee80211_hdrlen(fc) % 4 &&
299 !(offload_assist & BIT(TX_CMD_OFFLD_AMSDU)))
300 offload_assist |= BIT(TX_CMD_OFFLD_PAD);
301
302 tx_cmd->offload_assist |=
303 cpu_to_le16(iwl_mvm_tx_csum(mvm, skb, hdr, info,
304 offload_assist));
305}
306
307static u32 iwl_mvm_get_tx_ant(struct iwl_mvm *mvm,
308 struct ieee80211_tx_info *info,
309 struct ieee80211_sta *sta, __le16 fc)
310{
311 if (info->band == NL80211_BAND_2GHZ &&
312 !iwl_mvm_bt_coex_is_shared_ant_avail(mvm))
313 return mvm->cfg->non_shared_ant << RATE_MCS_ANT_POS;
314
315 if (sta && ieee80211_is_data(fc)) {
316 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
317
318 return BIT(mvmsta->tx_ant) << RATE_MCS_ANT_POS;
319 }
320
321 return BIT(mvm->mgmt_last_antenna_idx) << RATE_MCS_ANT_POS;
322}
323
324static u32 iwl_mvm_get_tx_rate(struct iwl_mvm *mvm,
325 struct ieee80211_tx_info *info,
326 struct ieee80211_sta *sta)
327{
328 int rate_idx;
329 u8 rate_plcp;
330 u32 rate_flags = 0;
331
332
333 WARN_ONCE(info->control.rates[0].flags & IEEE80211_TX_RC_MCS,
334 "Got an HT rate (flags:0x%x/mcs:%d) for a non data frame\n",
335 info->control.rates[0].flags,
336 info->control.rates[0].idx);
337
338 rate_idx = info->control.rates[0].idx;
339
340 if (rate_idx < 0 || rate_idx >= IWL_RATE_COUNT_LEGACY)
341 rate_idx = rate_lowest_index(
342 &mvm->nvm_data->bands[info->band], sta);
343
344
345 if (info->band == NL80211_BAND_5GHZ)
346 rate_idx += IWL_FIRST_OFDM_RATE;
347
348
349 BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0);
350
351
352 rate_plcp = iwl_mvm_mac80211_idx_to_hwrate(rate_idx);
353
354
355 if ((rate_idx >= IWL_FIRST_CCK_RATE) && (rate_idx <= IWL_LAST_CCK_RATE))
356 rate_flags |= RATE_MCS_CCK_MSK;
357
358 return (u32)rate_plcp | rate_flags;
359}
360
361static u32 iwl_mvm_get_tx_rate_n_flags(struct iwl_mvm *mvm,
362 struct ieee80211_tx_info *info,
363 struct ieee80211_sta *sta, __le16 fc)
364{
365 return iwl_mvm_get_tx_rate(mvm, info, sta) |
366 iwl_mvm_get_tx_ant(mvm, info, sta, fc);
367}
368
369
370
371
372void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, struct iwl_tx_cmd *tx_cmd,
373 struct ieee80211_tx_info *info,
374 struct ieee80211_sta *sta, __le16 fc)
375{
376
377 tx_cmd->rts_retry_limit = IWL_RTS_DFAULT_RETRY_LIMIT;
378
379
380 if (ieee80211_is_probe_resp(fc)) {
381 tx_cmd->data_retry_limit = IWL_MGMT_DFAULT_RETRY_LIMIT;
382 tx_cmd->rts_retry_limit =
383 min(tx_cmd->data_retry_limit, tx_cmd->rts_retry_limit);
384 } else if (ieee80211_is_back_req(fc)) {
385 tx_cmd->data_retry_limit = IWL_BAR_DFAULT_RETRY_LIMIT;
386 } else {
387 tx_cmd->data_retry_limit = IWL_DEFAULT_TX_RETRY;
388 }
389
390
391
392
393
394
395 if (ieee80211_is_data(fc) && sta) {
396 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
397
398 if (mvmsta->sta_state >= IEEE80211_STA_AUTHORIZED) {
399 tx_cmd->initial_rate_index = 0;
400 tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE);
401 return;
402 }
403 } else if (ieee80211_is_back_req(fc)) {
404 tx_cmd->tx_flags |=
405 cpu_to_le32(TX_CMD_FLG_ACK | TX_CMD_FLG_BAR);
406 }
407
408
409 tx_cmd->rate_n_flags =
410 cpu_to_le32(iwl_mvm_get_tx_rate_n_flags(mvm, info, sta, fc));
411}
412
413static inline void iwl_mvm_set_tx_cmd_pn(struct ieee80211_tx_info *info,
414 u8 *crypto_hdr)
415{
416 struct ieee80211_key_conf *keyconf = info->control.hw_key;
417 u64 pn;
418
419 pn = atomic64_inc_return(&keyconf->tx_pn);
420 crypto_hdr[0] = pn;
421 crypto_hdr[2] = 0;
422 crypto_hdr[3] = 0x20 | (keyconf->keyidx << 6);
423 crypto_hdr[1] = pn >> 8;
424 crypto_hdr[4] = pn >> 16;
425 crypto_hdr[5] = pn >> 24;
426 crypto_hdr[6] = pn >> 32;
427 crypto_hdr[7] = pn >> 40;
428}
429
430
431
432
433static void iwl_mvm_set_tx_cmd_crypto(struct iwl_mvm *mvm,
434 struct ieee80211_tx_info *info,
435 struct iwl_tx_cmd *tx_cmd,
436 struct sk_buff *skb_frag,
437 int hdrlen)
438{
439 struct ieee80211_key_conf *keyconf = info->control.hw_key;
440 u8 *crypto_hdr = skb_frag->data + hdrlen;
441 enum iwl_tx_cmd_sec_ctrl type = TX_CMD_SEC_CCM;
442 u64 pn;
443
444 switch (keyconf->cipher) {
445 case WLAN_CIPHER_SUITE_CCMP:
446 iwl_mvm_set_tx_cmd_ccmp(info, tx_cmd);
447 iwl_mvm_set_tx_cmd_pn(info, crypto_hdr);
448 break;
449
450 case WLAN_CIPHER_SUITE_TKIP:
451 tx_cmd->sec_ctl = TX_CMD_SEC_TKIP;
452 pn = atomic64_inc_return(&keyconf->tx_pn);
453 ieee80211_tkip_add_iv(crypto_hdr, keyconf, pn);
454 ieee80211_get_tkip_p2k(keyconf, skb_frag, tx_cmd->key);
455 break;
456
457 case WLAN_CIPHER_SUITE_WEP104:
458 tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128;
459
460 case WLAN_CIPHER_SUITE_WEP40:
461 tx_cmd->sec_ctl |= TX_CMD_SEC_WEP |
462 ((keyconf->keyidx << TX_CMD_SEC_WEP_KEY_IDX_POS) &
463 TX_CMD_SEC_WEP_KEY_IDX_MSK);
464
465 memcpy(&tx_cmd->key[3], keyconf->key, keyconf->keylen);
466 break;
467 case WLAN_CIPHER_SUITE_GCMP:
468 case WLAN_CIPHER_SUITE_GCMP_256:
469 type = TX_CMD_SEC_GCMP;
470
471 case WLAN_CIPHER_SUITE_CCMP_256:
472
473
474
475
476
477
478 tx_cmd->sec_ctl |= type | TX_CMD_SEC_KEY_FROM_TABLE;
479 tx_cmd->key[0] = keyconf->hw_key_idx;
480 iwl_mvm_set_tx_cmd_pn(info, crypto_hdr);
481 break;
482 default:
483 tx_cmd->sec_ctl |= TX_CMD_SEC_EXT;
484 }
485}
486
487
488
489
490static struct iwl_device_cmd *
491iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb,
492 struct ieee80211_tx_info *info, int hdrlen,
493 struct ieee80211_sta *sta, u8 sta_id)
494{
495 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
496 struct iwl_device_cmd *dev_cmd;
497 struct iwl_tx_cmd *tx_cmd;
498
499 dev_cmd = iwl_trans_alloc_tx_cmd(mvm->trans);
500
501 if (unlikely(!dev_cmd))
502 return NULL;
503
504
505 BUILD_BUG_ON(sizeof(struct iwl_tx_cmd_gen2) > sizeof(*tx_cmd));
506 BUILD_BUG_ON(sizeof(struct iwl_tx_cmd_gen3) > sizeof(*tx_cmd));
507
508 memset(dev_cmd, 0, sizeof(dev_cmd->hdr) + sizeof(*tx_cmd));
509 dev_cmd->hdr.cmd = TX_CMD;
510
511 if (iwl_mvm_has_new_tx_api(mvm)) {
512 u16 offload_assist = 0;
513 u32 rate_n_flags = 0;
514 u16 flags = 0;
515 struct iwl_mvm_sta *mvmsta = sta ?
516 iwl_mvm_sta_from_mac80211(sta) : NULL;
517
518 if (ieee80211_is_data_qos(hdr->frame_control)) {
519 u8 *qc = ieee80211_get_qos_ctl(hdr);
520
521 if (*qc & IEEE80211_QOS_CTL_A_MSDU_PRESENT)
522 offload_assist |= BIT(TX_CMD_OFFLD_AMSDU);
523 }
524
525 offload_assist = iwl_mvm_tx_csum(mvm, skb, hdr, info,
526 offload_assist);
527
528
529 if (ieee80211_hdrlen(hdr->frame_control) % 4 &&
530 !(offload_assist & BIT(TX_CMD_OFFLD_AMSDU)))
531 offload_assist |= BIT(TX_CMD_OFFLD_PAD);
532
533 if (!info->control.hw_key)
534 flags |= IWL_TX_FLAGS_ENCRYPT_DIS;
535
536
537
538
539
540
541 if (!sta || !ieee80211_is_data(hdr->frame_control) ||
542 mvmsta->sta_state < IEEE80211_STA_AUTHORIZED) {
543 flags |= IWL_TX_FLAGS_CMD_RATE;
544 rate_n_flags =
545 iwl_mvm_get_tx_rate_n_flags(mvm, info, sta,
546 hdr->frame_control);
547 }
548
549 if (mvm->trans->cfg->device_family >=
550 IWL_DEVICE_FAMILY_22560) {
551 struct iwl_tx_cmd_gen3 *cmd = (void *)dev_cmd->payload;
552
553 cmd->offload_assist |= cpu_to_le32(offload_assist);
554
555
556 cmd->len = cpu_to_le16((u16)skb->len);
557
558
559 memcpy(cmd->hdr, hdr, hdrlen);
560
561 cmd->flags = cpu_to_le16(flags);
562 cmd->rate_n_flags = cpu_to_le32(rate_n_flags);
563 } else {
564 struct iwl_tx_cmd_gen2 *cmd = (void *)dev_cmd->payload;
565
566 cmd->offload_assist |= cpu_to_le16(offload_assist);
567
568
569 cmd->len = cpu_to_le16((u16)skb->len);
570
571
572 memcpy(cmd->hdr, hdr, hdrlen);
573
574 cmd->flags = cpu_to_le32(flags);
575 cmd->rate_n_flags = cpu_to_le32(rate_n_flags);
576 }
577 goto out;
578 }
579
580 tx_cmd = (struct iwl_tx_cmd *)dev_cmd->payload;
581
582 if (info->control.hw_key)
583 iwl_mvm_set_tx_cmd_crypto(mvm, info, tx_cmd, skb, hdrlen);
584
585 iwl_mvm_set_tx_cmd(mvm, skb, tx_cmd, info, sta_id);
586
587 iwl_mvm_set_tx_cmd_rate(mvm, tx_cmd, info, sta, hdr->frame_control);
588
589
590 memcpy(tx_cmd->hdr, hdr, hdrlen);
591
592out:
593 return dev_cmd;
594}
595
596static void iwl_mvm_skb_prepare_status(struct sk_buff *skb,
597 struct iwl_device_cmd *cmd)
598{
599 struct ieee80211_tx_info *skb_info = IEEE80211_SKB_CB(skb);
600
601 memset(&skb_info->status, 0, sizeof(skb_info->status));
602 memset(skb_info->driver_data, 0, sizeof(skb_info->driver_data));
603
604 skb_info->driver_data[1] = cmd;
605}
606
607static int iwl_mvm_get_ctrl_vif_queue(struct iwl_mvm *mvm,
608 struct ieee80211_tx_info *info,
609 struct ieee80211_hdr *hdr)
610{
611 struct iwl_mvm_vif *mvmvif =
612 iwl_mvm_vif_from_mac80211(info->control.vif);
613 __le16 fc = hdr->frame_control;
614
615 switch (info->control.vif->type) {
616 case NL80211_IFTYPE_AP:
617 case NL80211_IFTYPE_ADHOC:
618
619
620
621
622
623
624
625
626
627
628 if (ieee80211_is_mgmt(fc) &&
629 (!ieee80211_is_bufferable_mmpdu(fc) ||
630 ieee80211_is_deauth(fc) || ieee80211_is_disassoc(fc)))
631 return mvm->probe_queue;
632
633 if (!ieee80211_has_order(fc) && !ieee80211_is_probe_req(fc) &&
634 is_multicast_ether_addr(hdr->addr1))
635 return mvmvif->cab_queue;
636
637 WARN_ONCE(info->control.vif->type != NL80211_IFTYPE_ADHOC,
638 "fc=0x%02x", le16_to_cpu(fc));
639 return mvm->probe_queue;
640 case NL80211_IFTYPE_P2P_DEVICE:
641 if (ieee80211_is_mgmt(fc))
642 return mvm->p2p_dev_queue;
643
644 WARN_ON_ONCE(1);
645 return mvm->p2p_dev_queue;
646 default:
647 WARN_ONCE(1, "Not a ctrl vif, no available queue\n");
648 return -1;
649 }
650}
651
652static void iwl_mvm_probe_resp_set_noa(struct iwl_mvm *mvm,
653 struct sk_buff *skb)
654{
655 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
656 struct iwl_mvm_vif *mvmvif =
657 iwl_mvm_vif_from_mac80211(info->control.vif);
658 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
659 int base_len = (u8 *)mgmt->u.probe_resp.variable - (u8 *)mgmt;
660 struct iwl_probe_resp_data *resp_data;
661 u8 *ie, *pos;
662 u8 match[] = {
663 (WLAN_OUI_WFA >> 16) & 0xff,
664 (WLAN_OUI_WFA >> 8) & 0xff,
665 WLAN_OUI_WFA & 0xff,
666 WLAN_OUI_TYPE_WFA_P2P,
667 };
668
669 rcu_read_lock();
670
671 resp_data = rcu_dereference(mvmvif->probe_resp_data);
672 if (!resp_data)
673 goto out;
674
675 if (!resp_data->notif.noa_active)
676 goto out;
677
678 ie = (u8 *)cfg80211_find_ie_match(WLAN_EID_VENDOR_SPECIFIC,
679 mgmt->u.probe_resp.variable,
680 skb->len - base_len,
681 match, 4, 2);
682 if (!ie) {
683 IWL_DEBUG_TX(mvm, "probe resp doesn't have P2P IE\n");
684 goto out;
685 }
686
687 if (skb_tailroom(skb) < resp_data->noa_len) {
688 if (pskb_expand_head(skb, 0, resp_data->noa_len, GFP_ATOMIC)) {
689 IWL_ERR(mvm,
690 "Failed to reallocate probe resp\n");
691 goto out;
692 }
693 }
694
695 pos = skb_put(skb, resp_data->noa_len);
696
697 *pos++ = WLAN_EID_VENDOR_SPECIFIC;
698
699 *pos++ = resp_data->noa_len - 2;
700 *pos++ = (WLAN_OUI_WFA >> 16) & 0xff;
701 *pos++ = (WLAN_OUI_WFA >> 8) & 0xff;
702 *pos++ = WLAN_OUI_WFA & 0xff;
703 *pos++ = WLAN_OUI_TYPE_WFA_P2P;
704
705 memcpy(pos, &resp_data->notif.noa_attr,
706 resp_data->noa_len - sizeof(struct ieee80211_vendor_ie));
707
708out:
709 rcu_read_unlock();
710}
711
712int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
713{
714 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
715 struct ieee80211_tx_info info;
716 struct iwl_device_cmd *dev_cmd;
717 u8 sta_id;
718 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
719 __le16 fc = hdr->frame_control;
720 bool offchannel = IEEE80211_SKB_CB(skb)->flags &
721 IEEE80211_TX_CTL_TX_OFFCHAN;
722 int queue = -1;
723
724 if (IWL_MVM_NON_TRANSMITTING_AP && ieee80211_is_probe_resp(fc))
725 return -1;
726
727 memcpy(&info, skb->cb, sizeof(info));
728
729 if (WARN_ON_ONCE(skb->len > IEEE80211_MAX_DATA_LEN + hdrlen))
730 return -1;
731
732 if (WARN_ON_ONCE(info.flags & IEEE80211_TX_CTL_AMPDU))
733 return -1;
734
735 if (info.control.vif) {
736 struct iwl_mvm_vif *mvmvif =
737 iwl_mvm_vif_from_mac80211(info.control.vif);
738
739 if (info.control.vif->type == NL80211_IFTYPE_P2P_DEVICE ||
740 info.control.vif->type == NL80211_IFTYPE_AP ||
741 info.control.vif->type == NL80211_IFTYPE_ADHOC) {
742 if (!ieee80211_is_data(hdr->frame_control))
743 sta_id = mvmvif->bcast_sta.sta_id;
744 else
745 sta_id = mvmvif->mcast_sta.sta_id;
746
747 queue = iwl_mvm_get_ctrl_vif_queue(mvm, &info, hdr);
748 } else if (info.control.vif->type == NL80211_IFTYPE_MONITOR) {
749 queue = mvm->snif_queue;
750 sta_id = mvm->snif_sta.sta_id;
751 } else if (info.control.vif->type == NL80211_IFTYPE_STATION &&
752 offchannel) {
753
754
755
756
757
758
759
760
761 sta_id = mvm->aux_sta.sta_id;
762 queue = mvm->aux_queue;
763 }
764 }
765
766 if (queue < 0) {
767 IWL_ERR(mvm, "No queue was found. Dropping TX\n");
768 return -1;
769 }
770
771 if (unlikely(ieee80211_is_probe_resp(fc)))
772 iwl_mvm_probe_resp_set_noa(mvm, skb);
773
774 IWL_DEBUG_TX(mvm, "station Id %d, queue=%d\n", sta_id, queue);
775
776 dev_cmd = iwl_mvm_set_tx_params(mvm, skb, &info, hdrlen, NULL, sta_id);
777 if (!dev_cmd)
778 return -1;
779
780
781 iwl_mvm_skb_prepare_status(skb, dev_cmd);
782
783 if (iwl_trans_tx(mvm->trans, skb, dev_cmd, queue)) {
784 iwl_trans_free_tx_cmd(mvm->trans, dev_cmd);
785 return -1;
786 }
787
788 return 0;
789}
790
791unsigned int iwl_mvm_max_amsdu_size(struct iwl_mvm *mvm,
792 struct ieee80211_sta *sta, unsigned int tid)
793{
794 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
795 enum nl80211_band band = mvmsta->vif->bss_conf.chandef.chan->band;
796 u8 ac = tid_to_mac80211_ac[tid];
797 unsigned int txf;
798 int lmac = IWL_LMAC_24G_INDEX;
799
800 if (iwl_mvm_is_cdb_supported(mvm) &&
801 band == NL80211_BAND_5GHZ)
802 lmac = IWL_LMAC_5G_INDEX;
803
804
805 if (sta->he_cap.has_he && !WARN_ON(!iwl_mvm_has_new_tx_api(mvm)))
806 ac += 4;
807
808 txf = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac);
809
810
811
812
813
814
815
816 return min_t(unsigned int, mvmsta->max_amsdu_len,
817 mvm->fwrt.smem_cfg.lmac[lmac].txfifo_size[txf] - 256);
818}
819
820#ifdef CONFIG_INET
821
822static int
823iwl_mvm_tx_tso_segment(struct sk_buff *skb, unsigned int num_subframes,
824 netdev_features_t netdev_flags,
825 struct sk_buff_head *mpdus_skb)
826{
827 struct sk_buff *tmp, *next;
828 struct ieee80211_hdr *hdr = (void *)skb->data;
829 char cb[sizeof(skb->cb)];
830 u16 i = 0;
831 unsigned int tcp_payload_len;
832 unsigned int mss = skb_shinfo(skb)->gso_size;
833 bool ipv4 = (skb->protocol == htons(ETH_P_IP));
834 bool qos = ieee80211_is_data_qos(hdr->frame_control);
835 u16 ip_base_id = ipv4 ? ntohs(ip_hdr(skb)->id) : 0;
836
837 skb_shinfo(skb)->gso_size = num_subframes * mss;
838 memcpy(cb, skb->cb, sizeof(cb));
839
840 next = skb_gso_segment(skb, netdev_flags);
841 skb_shinfo(skb)->gso_size = mss;
842 if (WARN_ON_ONCE(IS_ERR(next)))
843 return -EINVAL;
844 else if (next)
845 consume_skb(skb);
846
847 while (next) {
848 tmp = next;
849 next = tmp->next;
850
851 memcpy(tmp->cb, cb, sizeof(tmp->cb));
852
853
854
855
856
857
858 tcp_payload_len = skb_tail_pointer(tmp) -
859 skb_transport_header(tmp) -
860 tcp_hdrlen(tmp) + tmp->data_len;
861
862 if (ipv4)
863 ip_hdr(tmp)->id = htons(ip_base_id + i * num_subframes);
864
865 if (tcp_payload_len > mss) {
866 skb_shinfo(tmp)->gso_size = mss;
867 } else {
868 if (qos) {
869 u8 *qc;
870
871 if (ipv4)
872 ip_send_check(ip_hdr(tmp));
873
874 qc = ieee80211_get_qos_ctl((void *)tmp->data);
875 *qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
876 }
877 skb_shinfo(tmp)->gso_size = 0;
878 }
879
880 tmp->prev = NULL;
881 tmp->next = NULL;
882
883 __skb_queue_tail(mpdus_skb, tmp);
884 i++;
885 }
886
887 return 0;
888}
889
890static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
891 struct ieee80211_tx_info *info,
892 struct ieee80211_sta *sta,
893 struct sk_buff_head *mpdus_skb)
894{
895 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
896 struct ieee80211_hdr *hdr = (void *)skb->data;
897 unsigned int mss = skb_shinfo(skb)->gso_size;
898 unsigned int num_subframes, tcp_payload_len, subf_len, max_amsdu_len;
899 u16 snap_ip_tcp, pad;
900 netdev_features_t netdev_flags = NETIF_F_CSUM_MASK | NETIF_F_SG;
901 u8 tid;
902
903 snap_ip_tcp = 8 + skb_transport_header(skb) - skb_network_header(skb) +
904 tcp_hdrlen(skb);
905
906 if (!mvmsta->max_amsdu_len ||
907 !ieee80211_is_data_qos(hdr->frame_control) ||
908 !mvmsta->amsdu_enabled)
909 return iwl_mvm_tx_tso_segment(skb, 1, netdev_flags, mpdus_skb);
910
911
912
913
914
915 if (skb->protocol == htons(ETH_P_IPV6) &&
916 ((struct ipv6hdr *)skb_network_header(skb))->nexthdr !=
917 IPPROTO_TCP) {
918 netdev_flags &= ~NETIF_F_CSUM_MASK;
919 return iwl_mvm_tx_tso_segment(skb, 1, netdev_flags, mpdus_skb);
920 }
921
922 tid = ieee80211_get_tid(hdr);
923 if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT))
924 return -EINVAL;
925
926
927
928
929
930 if (info->flags & IEEE80211_TX_CTL_AMPDU &&
931 !mvmsta->tid_data[tid].amsdu_in_ampdu_allowed)
932 return iwl_mvm_tx_tso_segment(skb, 1, netdev_flags, mpdus_skb);
933
934 if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(mvmsta->vif)) ||
935 !(mvmsta->amsdu_enabled & BIT(tid)))
936 return iwl_mvm_tx_tso_segment(skb, 1, netdev_flags, mpdus_skb);
937
938 max_amsdu_len = iwl_mvm_max_amsdu_size(mvm, sta, tid);
939
940
941
942
943
944
945 if (info->flags & IEEE80211_TX_CTL_AMPDU &&
946 !sta->vht_cap.vht_supported)
947 max_amsdu_len = min_t(unsigned int, max_amsdu_len, 4095);
948
949
950 subf_len = sizeof(struct ethhdr) + snap_ip_tcp + mss;
951 pad = (4 - subf_len) & 0x3;
952
953
954
955
956
957 num_subframes = (max_amsdu_len + pad) / (subf_len + pad);
958
959 if (sta->max_amsdu_subframes &&
960 num_subframes > sta->max_amsdu_subframes)
961 num_subframes = sta->max_amsdu_subframes;
962
963 tcp_payload_len = skb_tail_pointer(skb) - skb_transport_header(skb) -
964 tcp_hdrlen(skb) + skb->data_len;
965
966
967
968
969
970
971
972 if ((num_subframes * 2 + skb_shinfo(skb)->nr_frags + 1) >
973 mvm->trans->max_skb_frags)
974 num_subframes = 1;
975
976 if (num_subframes > 1)
977 *ieee80211_get_qos_ctl(hdr) |= IEEE80211_QOS_CTL_A_MSDU_PRESENT;
978
979
980 if (num_subframes * mss >= tcp_payload_len) {
981 __skb_queue_tail(mpdus_skb, skb);
982 return 0;
983 }
984
985
986
987
988
989 return iwl_mvm_tx_tso_segment(skb, num_subframes, netdev_flags,
990 mpdus_skb);
991}
992#else
993static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
994 struct ieee80211_tx_info *info,
995 struct ieee80211_sta *sta,
996 struct sk_buff_head *mpdus_skb)
997{
998
999 WARN_ON(1);
1000
1001 return -1;
1002}
1003#endif
1004
1005
1006static bool iwl_mvm_txq_should_update(struct iwl_mvm *mvm, int txq_id)
1007{
1008 unsigned long queue_tid_bitmap = mvm->queue_info[txq_id].tid_bitmap;
1009 unsigned long now = jiffies;
1010 int tid;
1011
1012 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
1013 return false;
1014
1015 for_each_set_bit(tid, &queue_tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1016 if (time_before(mvm->queue_info[txq_id].last_frame_time[tid] +
1017 IWL_MVM_DQA_QUEUE_TIMEOUT, now))
1018 return true;
1019 }
1020
1021 return false;
1022}
1023
1024static void iwl_mvm_tx_airtime(struct iwl_mvm *mvm,
1025 struct iwl_mvm_sta *mvmsta,
1026 int airtime)
1027{
1028 int mac = mvmsta->mac_id_n_color & FW_CTXT_ID_MSK;
1029 struct iwl_mvm_tcm_mac *mdata;
1030
1031 if (mac >= NUM_MAC_INDEX_DRIVER)
1032 return;
1033
1034 mdata = &mvm->tcm.data[mac];
1035
1036 if (mvm->tcm.paused)
1037 return;
1038
1039 if (time_after(jiffies, mvm->tcm.ts + MVM_TCM_PERIOD))
1040 schedule_delayed_work(&mvm->tcm.work, 0);
1041
1042 mdata->tx.airtime += airtime;
1043}
1044
1045static int iwl_mvm_tx_pkt_queued(struct iwl_mvm *mvm,
1046 struct iwl_mvm_sta *mvmsta, int tid)
1047{
1048 u32 ac = tid_to_mac80211_ac[tid];
1049 int mac = mvmsta->mac_id_n_color & FW_CTXT_ID_MSK;
1050 struct iwl_mvm_tcm_mac *mdata;
1051
1052 if (mac >= NUM_MAC_INDEX_DRIVER)
1053 return -EINVAL;
1054
1055 mdata = &mvm->tcm.data[mac];
1056
1057 mdata->tx.pkts[ac]++;
1058
1059 return 0;
1060}
1061
1062
1063
1064
1065
1066
1067static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb,
1068 struct ieee80211_tx_info *info,
1069 struct ieee80211_sta *sta)
1070{
1071 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1072 struct iwl_mvm_sta *mvmsta;
1073 struct iwl_device_cmd *dev_cmd;
1074 __le16 fc;
1075 u16 seq_number = 0;
1076 u8 tid = IWL_MAX_TID_COUNT;
1077 u16 txq_id;
1078 bool is_ampdu = false;
1079 int hdrlen;
1080
1081 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1082 fc = hdr->frame_control;
1083 hdrlen = ieee80211_hdrlen(fc);
1084
1085 if (IWL_MVM_NON_TRANSMITTING_AP && ieee80211_is_probe_resp(fc))
1086 return -1;
1087
1088 if (WARN_ON_ONCE(!mvmsta))
1089 return -1;
1090
1091 if (WARN_ON_ONCE(mvmsta->sta_id == IWL_MVM_INVALID_STA))
1092 return -1;
1093
1094 if (unlikely(ieee80211_is_probe_resp(fc)))
1095 iwl_mvm_probe_resp_set_noa(mvm, skb);
1096
1097 dev_cmd = iwl_mvm_set_tx_params(mvm, skb, info, hdrlen,
1098 sta, mvmsta->sta_id);
1099 if (!dev_cmd)
1100 goto drop;
1101
1102
1103
1104
1105
1106
1107 info->flags &= ~IEEE80211_TX_STATUS_EOSP;
1108
1109 spin_lock(&mvmsta->lock);
1110
1111
1112
1113
1114
1115 if (ieee80211_is_data_qos(fc) && !ieee80211_is_qos_nullfunc(fc)) {
1116 tid = ieee80211_get_tid(hdr);
1117 if (WARN_ONCE(tid >= IWL_MAX_TID_COUNT, "Invalid TID %d", tid))
1118 goto drop_unlock_sta;
1119
1120 is_ampdu = info->flags & IEEE80211_TX_CTL_AMPDU;
1121 if (WARN_ONCE(is_ampdu &&
1122 mvmsta->tid_data[tid].state != IWL_AGG_ON,
1123 "Invalid internal agg state %d for TID %d",
1124 mvmsta->tid_data[tid].state, tid))
1125 goto drop_unlock_sta;
1126
1127 seq_number = mvmsta->tid_data[tid].seq_number;
1128 seq_number &= IEEE80211_SCTL_SEQ;
1129
1130 if (!iwl_mvm_has_new_tx_api(mvm)) {
1131 struct iwl_tx_cmd *tx_cmd = (void *)dev_cmd->payload;
1132
1133 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
1134 hdr->seq_ctrl |= cpu_to_le16(seq_number);
1135
1136 tx_cmd->hdr->seq_ctrl = hdr->seq_ctrl;
1137 }
1138 } else if (ieee80211_is_data(fc) && !ieee80211_is_data_qos(fc)) {
1139 tid = IWL_TID_NON_QOS;
1140 }
1141
1142 txq_id = mvmsta->tid_data[tid].txq_id;
1143
1144 WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM);
1145
1146 if (WARN_ONCE(txq_id == IWL_MVM_INVALID_QUEUE, "Invalid TXQ id")) {
1147 iwl_trans_free_tx_cmd(mvm->trans, dev_cmd);
1148 spin_unlock(&mvmsta->lock);
1149 return 0;
1150 }
1151
1152 if (!iwl_mvm_has_new_tx_api(mvm)) {
1153
1154 mvm->queue_info[txq_id].last_frame_time[tid] = jiffies;
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166 if (unlikely(mvm->queue_info[txq_id].status ==
1167 IWL_MVM_QUEUE_SHARED &&
1168 iwl_mvm_txq_should_update(mvm, txq_id)))
1169 schedule_work(&mvm->add_stream_wk);
1170 }
1171
1172 IWL_DEBUG_TX(mvm, "TX to [%d|%d] Q:%d - seq: 0x%x\n", mvmsta->sta_id,
1173 tid, txq_id, IEEE80211_SEQ_TO_SN(seq_number));
1174
1175
1176 iwl_mvm_skb_prepare_status(skb, dev_cmd);
1177
1178 if (iwl_trans_tx(mvm->trans, skb, dev_cmd, txq_id))
1179 goto drop_unlock_sta;
1180
1181 if (tid < IWL_MAX_TID_COUNT && !ieee80211_has_morefrags(fc))
1182 mvmsta->tid_data[tid].seq_number = seq_number + 0x10;
1183
1184 spin_unlock(&mvmsta->lock);
1185
1186 if (iwl_mvm_tx_pkt_queued(mvm, mvmsta,
1187 tid == IWL_MAX_TID_COUNT ? 0 : tid))
1188 goto drop;
1189
1190 return 0;
1191
1192drop_unlock_sta:
1193 iwl_trans_free_tx_cmd(mvm->trans, dev_cmd);
1194 spin_unlock(&mvmsta->lock);
1195drop:
1196 IWL_DEBUG_TX(mvm, "TX to [%d|%d] dropped\n", mvmsta->sta_id, tid);
1197 return -1;
1198}
1199
1200int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
1201 struct ieee80211_sta *sta)
1202{
1203 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1204 struct ieee80211_tx_info info;
1205 struct sk_buff_head mpdus_skbs;
1206 unsigned int payload_len;
1207 int ret;
1208
1209 if (WARN_ON_ONCE(!mvmsta))
1210 return -1;
1211
1212 if (WARN_ON_ONCE(mvmsta->sta_id == IWL_MVM_INVALID_STA))
1213 return -1;
1214
1215 memcpy(&info, skb->cb, sizeof(info));
1216
1217 if (!skb_is_gso(skb))
1218 return iwl_mvm_tx_mpdu(mvm, skb, &info, sta);
1219
1220 payload_len = skb_tail_pointer(skb) - skb_transport_header(skb) -
1221 tcp_hdrlen(skb) + skb->data_len;
1222
1223 if (payload_len <= skb_shinfo(skb)->gso_size)
1224 return iwl_mvm_tx_mpdu(mvm, skb, &info, sta);
1225
1226 __skb_queue_head_init(&mpdus_skbs);
1227
1228 ret = iwl_mvm_tx_tso(mvm, skb, &info, sta, &mpdus_skbs);
1229 if (ret)
1230 return ret;
1231
1232 if (WARN_ON(skb_queue_empty(&mpdus_skbs)))
1233 return ret;
1234
1235 while (!skb_queue_empty(&mpdus_skbs)) {
1236 skb = __skb_dequeue(&mpdus_skbs);
1237
1238 ret = iwl_mvm_tx_mpdu(mvm, skb, &info, sta);
1239 if (ret) {
1240 __skb_queue_purge(&mpdus_skbs);
1241 return ret;
1242 }
1243 }
1244
1245 return 0;
1246}
1247
1248static void iwl_mvm_check_ratid_empty(struct iwl_mvm *mvm,
1249 struct ieee80211_sta *sta, u8 tid)
1250{
1251 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1252 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
1253 struct ieee80211_vif *vif = mvmsta->vif;
1254 u16 normalized_ssn;
1255
1256 lockdep_assert_held(&mvmsta->lock);
1257
1258 if ((tid_data->state == IWL_AGG_ON ||
1259 tid_data->state == IWL_EMPTYING_HW_QUEUE_DELBA) &&
1260 iwl_mvm_tid_queued(mvm, tid_data) == 0) {
1261
1262
1263
1264
1265
1266 ieee80211_sta_set_buffered(sta, tid, false);
1267 }
1268
1269
1270
1271
1272
1273 normalized_ssn = tid_data->ssn;
1274 if (mvm->trans->cfg->gen2)
1275 normalized_ssn &= 0xff;
1276
1277 if (normalized_ssn != tid_data->next_reclaimed)
1278 return;
1279
1280 switch (tid_data->state) {
1281 case IWL_EMPTYING_HW_QUEUE_ADDBA:
1282 IWL_DEBUG_TX_QUEUES(mvm,
1283 "Can continue addBA flow ssn = next_recl = %d\n",
1284 tid_data->next_reclaimed);
1285 tid_data->state = IWL_AGG_STARTING;
1286 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1287 break;
1288
1289 case IWL_EMPTYING_HW_QUEUE_DELBA:
1290 IWL_DEBUG_TX_QUEUES(mvm,
1291 "Can continue DELBA flow ssn = next_recl = %d\n",
1292 tid_data->next_reclaimed);
1293 tid_data->state = IWL_AGG_OFF;
1294 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1295 break;
1296
1297 default:
1298 break;
1299 }
1300}
1301
1302#ifdef CONFIG_IWLWIFI_DEBUG
1303const char *iwl_mvm_get_tx_fail_reason(u32 status)
1304{
1305#define TX_STATUS_FAIL(x) case TX_STATUS_FAIL_ ## x: return #x
1306#define TX_STATUS_POSTPONE(x) case TX_STATUS_POSTPONE_ ## x: return #x
1307
1308 switch (status & TX_STATUS_MSK) {
1309 case TX_STATUS_SUCCESS:
1310 return "SUCCESS";
1311 TX_STATUS_POSTPONE(DELAY);
1312 TX_STATUS_POSTPONE(FEW_BYTES);
1313 TX_STATUS_POSTPONE(BT_PRIO);
1314 TX_STATUS_POSTPONE(QUIET_PERIOD);
1315 TX_STATUS_POSTPONE(CALC_TTAK);
1316 TX_STATUS_FAIL(INTERNAL_CROSSED_RETRY);
1317 TX_STATUS_FAIL(SHORT_LIMIT);
1318 TX_STATUS_FAIL(LONG_LIMIT);
1319 TX_STATUS_FAIL(UNDERRUN);
1320 TX_STATUS_FAIL(DRAIN_FLOW);
1321 TX_STATUS_FAIL(RFKILL_FLUSH);
1322 TX_STATUS_FAIL(LIFE_EXPIRE);
1323 TX_STATUS_FAIL(DEST_PS);
1324 TX_STATUS_FAIL(HOST_ABORTED);
1325 TX_STATUS_FAIL(BT_RETRY);
1326 TX_STATUS_FAIL(STA_INVALID);
1327 TX_STATUS_FAIL(FRAG_DROPPED);
1328 TX_STATUS_FAIL(TID_DISABLE);
1329 TX_STATUS_FAIL(FIFO_FLUSHED);
1330 TX_STATUS_FAIL(SMALL_CF_POLL);
1331 TX_STATUS_FAIL(FW_DROP);
1332 TX_STATUS_FAIL(STA_COLOR_MISMATCH);
1333 }
1334
1335 return "UNKNOWN";
1336
1337#undef TX_STATUS_FAIL
1338#undef TX_STATUS_POSTPONE
1339}
1340#endif
1341
1342void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags,
1343 enum nl80211_band band,
1344 struct ieee80211_tx_rate *r)
1345{
1346 if (rate_n_flags & RATE_HT_MCS_GF_MSK)
1347 r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
1348 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
1349 case RATE_MCS_CHAN_WIDTH_20:
1350 break;
1351 case RATE_MCS_CHAN_WIDTH_40:
1352 r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
1353 break;
1354 case RATE_MCS_CHAN_WIDTH_80:
1355 r->flags |= IEEE80211_TX_RC_80_MHZ_WIDTH;
1356 break;
1357 case RATE_MCS_CHAN_WIDTH_160:
1358 r->flags |= IEEE80211_TX_RC_160_MHZ_WIDTH;
1359 break;
1360 }
1361 if (rate_n_flags & RATE_MCS_SGI_MSK)
1362 r->flags |= IEEE80211_TX_RC_SHORT_GI;
1363 if (rate_n_flags & RATE_MCS_HT_MSK) {
1364 r->flags |= IEEE80211_TX_RC_MCS;
1365 r->idx = rate_n_flags & RATE_HT_MCS_INDEX_MSK;
1366 } else if (rate_n_flags & RATE_MCS_VHT_MSK) {
1367 ieee80211_rate_set_vht(
1368 r, rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK,
1369 ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >>
1370 RATE_VHT_MCS_NSS_POS) + 1);
1371 r->flags |= IEEE80211_TX_RC_VHT_MCS;
1372 } else {
1373 r->idx = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags,
1374 band);
1375 }
1376}
1377
1378
1379
1380
1381static void iwl_mvm_hwrate_to_tx_status(u32 rate_n_flags,
1382 struct ieee80211_tx_info *info)
1383{
1384 struct ieee80211_tx_rate *r = &info->status.rates[0];
1385
1386 info->status.antenna =
1387 ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
1388 iwl_mvm_hwrate_to_tx_rate(rate_n_flags, info->band, r);
1389}
1390
1391static void iwl_mvm_tx_status_check_trigger(struct iwl_mvm *mvm,
1392 u32 status)
1393{
1394 struct iwl_fw_dbg_trigger_tlv *trig;
1395 struct iwl_fw_dbg_trigger_tx_status *status_trig;
1396 int i;
1397
1398 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
1399 FW_DBG_TRIGGER_TX_STATUS);
1400 if (!trig)
1401 return;
1402
1403 status_trig = (void *)trig->data;
1404
1405 for (i = 0; i < ARRAY_SIZE(status_trig->statuses); i++) {
1406
1407 if (!status_trig->statuses[i].status)
1408 break;
1409
1410 if (status_trig->statuses[i].status != (status & TX_STATUS_MSK))
1411 continue;
1412
1413 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
1414 "Tx status %d was received",
1415 status & TX_STATUS_MSK);
1416 break;
1417 }
1418}
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433static inline u32 iwl_mvm_get_scd_ssn(struct iwl_mvm *mvm,
1434 struct iwl_mvm_tx_resp *tx_resp)
1435{
1436 return le32_to_cpup((__le32 *)iwl_mvm_get_agg_status(mvm, tx_resp) +
1437 tx_resp->frame_count) & 0xfff;
1438}
1439
1440static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
1441 struct iwl_rx_packet *pkt)
1442{
1443 struct ieee80211_sta *sta;
1444 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
1445 int txq_id = SEQ_TO_QUEUE(sequence);
1446
1447 struct iwl_mvm_tx_resp *tx_resp = (void *)pkt->data;
1448 int sta_id = IWL_MVM_TX_RES_GET_RA(tx_resp->ra_tid);
1449 int tid = IWL_MVM_TX_RES_GET_TID(tx_resp->ra_tid);
1450 struct agg_tx_status *agg_status =
1451 iwl_mvm_get_agg_status(mvm, tx_resp);
1452 u32 status = le16_to_cpu(agg_status->status);
1453 u16 ssn = iwl_mvm_get_scd_ssn(mvm, tx_resp);
1454 struct sk_buff_head skbs;
1455 u8 skb_freed = 0;
1456 u8 lq_color;
1457 u16 next_reclaimed, seq_ctl;
1458 bool is_ndp = false;
1459
1460 __skb_queue_head_init(&skbs);
1461
1462 if (iwl_mvm_has_new_tx_api(mvm))
1463 txq_id = le16_to_cpu(tx_resp->tx_queue);
1464
1465 seq_ctl = le16_to_cpu(tx_resp->seq_ctl);
1466
1467
1468 iwl_trans_reclaim(mvm->trans, txq_id, ssn, &skbs);
1469
1470 while (!skb_queue_empty(&skbs)) {
1471 struct sk_buff *skb = __skb_dequeue(&skbs);
1472 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1473 struct ieee80211_hdr *hdr = (void *)skb->data;
1474 bool flushed = false;
1475
1476 skb_freed++;
1477
1478 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1479
1480 memset(&info->status, 0, sizeof(info->status));
1481
1482
1483 switch (status & TX_STATUS_MSK) {
1484 case TX_STATUS_SUCCESS:
1485 case TX_STATUS_DIRECT_DONE:
1486 info->flags |= IEEE80211_TX_STAT_ACK;
1487 break;
1488 case TX_STATUS_FAIL_FIFO_FLUSHED:
1489 case TX_STATUS_FAIL_DRAIN_FLOW:
1490 flushed = true;
1491 break;
1492 case TX_STATUS_FAIL_DEST_PS:
1493
1494
1495
1496 WARN_ON(1);
1497 info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
1498 break;
1499 default:
1500 break;
1501 }
1502
1503 if ((status & TX_STATUS_MSK) != TX_STATUS_SUCCESS &&
1504 ieee80211_is_mgmt(hdr->frame_control))
1505 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
1506
1507
1508
1509
1510
1511
1512 if (skb_freed > 1)
1513 info->flags |= IEEE80211_TX_STAT_ACK;
1514
1515 iwl_mvm_tx_status_check_trigger(mvm, status);
1516
1517 info->status.rates[0].count = tx_resp->failure_frame + 1;
1518 iwl_mvm_hwrate_to_tx_status(le32_to_cpu(tx_resp->initial_rate),
1519 info);
1520 info->status.status_driver_data[1] =
1521 (void *)(uintptr_t)le32_to_cpu(tx_resp->initial_rate);
1522
1523
1524 if (info->flags & IEEE80211_TX_CTL_AMPDU &&
1525 !(info->flags & IEEE80211_TX_STAT_ACK) &&
1526 !(info->flags & IEEE80211_TX_STAT_TX_FILTERED) && !flushed)
1527 info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
1528 info->flags &= ~IEEE80211_TX_CTL_AMPDU;
1529
1530
1531 if (ieee80211_is_back_req(hdr->frame_control))
1532 seq_ctl = 0;
1533 else if (status != TX_STATUS_SUCCESS)
1534 seq_ctl = le16_to_cpu(hdr->seq_ctrl);
1535
1536 if (unlikely(!seq_ctl)) {
1537 struct ieee80211_hdr *hdr = (void *)skb->data;
1538
1539
1540
1541
1542
1543
1544
1545
1546 if (ieee80211_is_qos_nullfunc(hdr->frame_control))
1547 is_ndp = true;
1548 }
1549
1550
1551
1552
1553
1554 info->status.tx_time =
1555 le16_to_cpu(tx_resp->wireless_media_time);
1556 BUILD_BUG_ON(ARRAY_SIZE(info->status.status_driver_data) < 1);
1557 lq_color = TX_RES_RATE_TABLE_COL_GET(tx_resp->tlc_info);
1558 info->status.status_driver_data[0] =
1559 RS_DRV_DATA_PACK(lq_color, tx_resp->reduced_tpc);
1560
1561 ieee80211_tx_status(mvm->hw, skb);
1562 }
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578 next_reclaimed = ssn;
1579
1580 IWL_DEBUG_TX_REPLY(mvm,
1581 "TXQ %d status %s (0x%08x)\n",
1582 txq_id, iwl_mvm_get_tx_fail_reason(status), status);
1583
1584 IWL_DEBUG_TX_REPLY(mvm,
1585 "\t\t\t\tinitial_rate 0x%x retries %d, idx=%d ssn=%d next_reclaimed=0x%x seq_ctl=0x%x\n",
1586 le32_to_cpu(tx_resp->initial_rate),
1587 tx_resp->failure_frame, SEQ_TO_INDEX(sequence),
1588 ssn, next_reclaimed, seq_ctl);
1589
1590 rcu_read_lock();
1591
1592 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1593
1594
1595
1596
1597 if (WARN_ON_ONCE(!sta))
1598 goto out;
1599
1600 if (!IS_ERR(sta)) {
1601 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1602
1603 iwl_mvm_tx_airtime(mvm, mvmsta,
1604 le16_to_cpu(tx_resp->wireless_media_time));
1605
1606 if ((status & TX_STATUS_MSK) != TX_STATUS_SUCCESS &&
1607 mvmsta->sta_state < IEEE80211_STA_AUTHORIZED)
1608 iwl_mvm_toggle_tx_ant(mvm, &mvmsta->tx_ant);
1609
1610 if (sta->wme && tid != IWL_MGMT_TID) {
1611 struct iwl_mvm_tid_data *tid_data =
1612 &mvmsta->tid_data[tid];
1613 bool send_eosp_ndp = false;
1614
1615 spin_lock_bh(&mvmsta->lock);
1616
1617 if (!is_ndp) {
1618 tid_data->next_reclaimed = next_reclaimed;
1619 IWL_DEBUG_TX_REPLY(mvm,
1620 "Next reclaimed packet:%d\n",
1621 next_reclaimed);
1622 } else {
1623 IWL_DEBUG_TX_REPLY(mvm,
1624 "NDP - don't update next_reclaimed\n");
1625 }
1626
1627 iwl_mvm_check_ratid_empty(mvm, sta, tid);
1628
1629 if (mvmsta->sleep_tx_count) {
1630 mvmsta->sleep_tx_count--;
1631 if (mvmsta->sleep_tx_count &&
1632 !iwl_mvm_tid_queued(mvm, tid_data)) {
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646 send_eosp_ndp = true;
1647 }
1648 }
1649
1650 spin_unlock_bh(&mvmsta->lock);
1651 if (send_eosp_ndp) {
1652 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta,
1653 IEEE80211_FRAME_RELEASE_UAPSD,
1654 1, tid, false, false);
1655 mvmsta->sleep_tx_count = 0;
1656 ieee80211_send_eosp_nullfunc(sta, tid);
1657 }
1658 }
1659
1660 if (mvmsta->next_status_eosp) {
1661 mvmsta->next_status_eosp = false;
1662 ieee80211_sta_eosp(sta);
1663 }
1664 }
1665out:
1666 rcu_read_unlock();
1667}
1668
1669#ifdef CONFIG_IWLWIFI_DEBUG
1670#define AGG_TX_STATE_(x) case AGG_TX_STATE_ ## x: return #x
1671static const char *iwl_get_agg_tx_status(u16 status)
1672{
1673 switch (status & AGG_TX_STATE_STATUS_MSK) {
1674 AGG_TX_STATE_(TRANSMITTED);
1675 AGG_TX_STATE_(UNDERRUN);
1676 AGG_TX_STATE_(BT_PRIO);
1677 AGG_TX_STATE_(FEW_BYTES);
1678 AGG_TX_STATE_(ABORT);
1679 AGG_TX_STATE_(TX_ON_AIR_DROP);
1680 AGG_TX_STATE_(LAST_SENT_TRY_CNT);
1681 AGG_TX_STATE_(LAST_SENT_BT_KILL);
1682 AGG_TX_STATE_(SCD_QUERY);
1683 AGG_TX_STATE_(TEST_BAD_CRC32);
1684 AGG_TX_STATE_(RESPONSE);
1685 AGG_TX_STATE_(DUMP_TX);
1686 AGG_TX_STATE_(DELAY_TX);
1687 }
1688
1689 return "UNKNOWN";
1690}
1691
1692static void iwl_mvm_rx_tx_cmd_agg_dbg(struct iwl_mvm *mvm,
1693 struct iwl_rx_packet *pkt)
1694{
1695 struct iwl_mvm_tx_resp *tx_resp = (void *)pkt->data;
1696 struct agg_tx_status *frame_status =
1697 iwl_mvm_get_agg_status(mvm, tx_resp);
1698 int i;
1699
1700 for (i = 0; i < tx_resp->frame_count; i++) {
1701 u16 fstatus = le16_to_cpu(frame_status[i].status);
1702
1703 IWL_DEBUG_TX_REPLY(mvm,
1704 "status %s (0x%04x), try-count (%d) seq (0x%x)\n",
1705 iwl_get_agg_tx_status(fstatus),
1706 fstatus & AGG_TX_STATE_STATUS_MSK,
1707 (fstatus & AGG_TX_STATE_TRY_CNT_MSK) >>
1708 AGG_TX_STATE_TRY_CNT_POS,
1709 le16_to_cpu(frame_status[i].sequence));
1710 }
1711}
1712#else
1713static void iwl_mvm_rx_tx_cmd_agg_dbg(struct iwl_mvm *mvm,
1714 struct iwl_rx_packet *pkt)
1715{}
1716#endif
1717
1718static void iwl_mvm_rx_tx_cmd_agg(struct iwl_mvm *mvm,
1719 struct iwl_rx_packet *pkt)
1720{
1721 struct iwl_mvm_tx_resp *tx_resp = (void *)pkt->data;
1722 int sta_id = IWL_MVM_TX_RES_GET_RA(tx_resp->ra_tid);
1723 int tid = IWL_MVM_TX_RES_GET_TID(tx_resp->ra_tid);
1724 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
1725 struct iwl_mvm_sta *mvmsta;
1726 int queue = SEQ_TO_QUEUE(sequence);
1727 struct ieee80211_sta *sta;
1728
1729 if (WARN_ON_ONCE(queue < IWL_MVM_DQA_MIN_DATA_QUEUE &&
1730 (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)))
1731 return;
1732
1733 iwl_mvm_rx_tx_cmd_agg_dbg(mvm, pkt);
1734
1735 rcu_read_lock();
1736
1737 mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, sta_id);
1738
1739 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1740 if (WARN_ON_ONCE(!sta || !sta->wme)) {
1741 rcu_read_unlock();
1742 return;
1743 }
1744
1745 if (!WARN_ON_ONCE(!mvmsta)) {
1746 mvmsta->tid_data[tid].rate_n_flags =
1747 le32_to_cpu(tx_resp->initial_rate);
1748 mvmsta->tid_data[tid].tx_time =
1749 le16_to_cpu(tx_resp->wireless_media_time);
1750 mvmsta->tid_data[tid].lq_color =
1751 TX_RES_RATE_TABLE_COL_GET(tx_resp->tlc_info);
1752 iwl_mvm_tx_airtime(mvm, mvmsta,
1753 le16_to_cpu(tx_resp->wireless_media_time));
1754 }
1755
1756 rcu_read_unlock();
1757}
1758
1759void iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
1760{
1761 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1762 struct iwl_mvm_tx_resp *tx_resp = (void *)pkt->data;
1763
1764 if (tx_resp->frame_count == 1)
1765 iwl_mvm_rx_tx_cmd_single(mvm, pkt);
1766 else
1767 iwl_mvm_rx_tx_cmd_agg(mvm, pkt);
1768}
1769
1770static void iwl_mvm_tx_reclaim(struct iwl_mvm *mvm, int sta_id, int tid,
1771 int txq, int index,
1772 struct ieee80211_tx_info *ba_info, u32 rate)
1773{
1774 struct sk_buff_head reclaimed_skbs;
1775 struct iwl_mvm_tid_data *tid_data;
1776 struct ieee80211_sta *sta;
1777 struct iwl_mvm_sta *mvmsta;
1778 struct sk_buff *skb;
1779 int freed;
1780
1781 if (WARN_ONCE(sta_id >= IWL_MVM_STATION_COUNT ||
1782 tid > IWL_MAX_TID_COUNT,
1783 "sta_id %d tid %d", sta_id, tid))
1784 return;
1785
1786 rcu_read_lock();
1787
1788 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1789
1790
1791 if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) {
1792 rcu_read_unlock();
1793 return;
1794 }
1795
1796 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1797 tid_data = &mvmsta->tid_data[tid];
1798
1799 if (tid_data->txq_id != txq) {
1800 IWL_ERR(mvm,
1801 "invalid BA notification: Q %d, tid %d\n",
1802 tid_data->txq_id, tid);
1803 rcu_read_unlock();
1804 return;
1805 }
1806
1807 __skb_queue_head_init(&reclaimed_skbs);
1808
1809
1810
1811
1812
1813
1814 iwl_trans_reclaim(mvm->trans, txq, index, &reclaimed_skbs);
1815
1816 spin_lock_bh(&mvmsta->lock);
1817
1818 tid_data->next_reclaimed = index;
1819
1820 iwl_mvm_check_ratid_empty(mvm, sta, tid);
1821
1822 freed = 0;
1823
1824
1825 ba_info->status.status_driver_data[0] =
1826 RS_DRV_DATA_PACK(tid_data->lq_color,
1827 ba_info->status.status_driver_data[0]);
1828 ba_info->status.status_driver_data[1] = (void *)(uintptr_t)rate;
1829
1830 skb_queue_walk(&reclaimed_skbs, skb) {
1831 struct ieee80211_hdr *hdr = (void *)skb->data;
1832 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1833
1834 if (ieee80211_is_data_qos(hdr->frame_control))
1835 freed++;
1836 else
1837 WARN_ON_ONCE(tid != IWL_MAX_TID_COUNT);
1838
1839 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1840
1841 memset(&info->status, 0, sizeof(info->status));
1842
1843
1844
1845
1846 info->flags |= IEEE80211_TX_STAT_ACK;
1847
1848
1849
1850 if (freed == 1) {
1851 info->flags |= IEEE80211_TX_STAT_AMPDU;
1852 memcpy(&info->status, &ba_info->status,
1853 sizeof(ba_info->status));
1854 iwl_mvm_hwrate_to_tx_status(rate, info);
1855 }
1856 }
1857
1858 spin_unlock_bh(&mvmsta->lock);
1859
1860
1861
1862
1863
1864 if (skb_queue_empty(&reclaimed_skbs)) {
1865 struct ieee80211_chanctx_conf *chanctx_conf = NULL;
1866
1867 if (mvmsta->vif)
1868 chanctx_conf =
1869 rcu_dereference(mvmsta->vif->chanctx_conf);
1870
1871 if (WARN_ON_ONCE(!chanctx_conf))
1872 goto out;
1873
1874 ba_info->band = chanctx_conf->def.chan->band;
1875 iwl_mvm_hwrate_to_tx_status(rate, ba_info);
1876
1877 if (!iwl_mvm_has_tlc_offload(mvm)) {
1878 IWL_DEBUG_TX_REPLY(mvm,
1879 "No reclaim. Update rs directly\n");
1880 iwl_mvm_rs_tx_status(mvm, sta, tid, ba_info, false);
1881 }
1882 }
1883
1884out:
1885 rcu_read_unlock();
1886
1887 while (!skb_queue_empty(&reclaimed_skbs)) {
1888 skb = __skb_dequeue(&reclaimed_skbs);
1889 ieee80211_tx_status(mvm->hw, skb);
1890 }
1891}
1892
1893void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
1894{
1895 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1896 int sta_id, tid, txq, index;
1897 struct ieee80211_tx_info ba_info = {};
1898 struct iwl_mvm_ba_notif *ba_notif;
1899 struct iwl_mvm_tid_data *tid_data;
1900 struct iwl_mvm_sta *mvmsta;
1901
1902 ba_info.flags = IEEE80211_TX_STAT_AMPDU;
1903
1904 if (iwl_mvm_has_new_tx_api(mvm)) {
1905 struct iwl_mvm_compressed_ba_notif *ba_res =
1906 (void *)pkt->data;
1907 u8 lq_color = TX_RES_RATE_TABLE_COL_GET(ba_res->tlc_rate_info);
1908 int i;
1909
1910 sta_id = ba_res->sta_id;
1911 ba_info.status.ampdu_ack_len = (u8)le16_to_cpu(ba_res->done);
1912 ba_info.status.ampdu_len = (u8)le16_to_cpu(ba_res->txed);
1913 ba_info.status.tx_time =
1914 (u16)le32_to_cpu(ba_res->wireless_time);
1915 ba_info.status.status_driver_data[0] =
1916 (void *)(uintptr_t)ba_res->reduced_txp;
1917
1918 if (!le16_to_cpu(ba_res->tfd_cnt))
1919 goto out;
1920
1921 rcu_read_lock();
1922
1923 mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, sta_id);
1924 if (!mvmsta)
1925 goto out_unlock;
1926
1927
1928 for (i = 0; i < le16_to_cpu(ba_res->tfd_cnt); i++) {
1929 struct iwl_mvm_compressed_ba_tfd *ba_tfd =
1930 &ba_res->tfd[i];
1931
1932 tid = ba_tfd->tid;
1933 if (tid == IWL_MGMT_TID)
1934 tid = IWL_MAX_TID_COUNT;
1935
1936 mvmsta->tid_data[i].lq_color = lq_color;
1937 iwl_mvm_tx_reclaim(mvm, sta_id, tid,
1938 (int)(le16_to_cpu(ba_tfd->q_num)),
1939 le16_to_cpu(ba_tfd->tfd_index),
1940 &ba_info,
1941 le32_to_cpu(ba_res->tx_rate));
1942 }
1943
1944 iwl_mvm_tx_airtime(mvm, mvmsta,
1945 le32_to_cpu(ba_res->wireless_time));
1946out_unlock:
1947 rcu_read_unlock();
1948out:
1949 IWL_DEBUG_TX_REPLY(mvm,
1950 "BA_NOTIFICATION Received from sta_id = %d, flags %x, sent:%d, acked:%d\n",
1951 sta_id, le32_to_cpu(ba_res->flags),
1952 le16_to_cpu(ba_res->txed),
1953 le16_to_cpu(ba_res->done));
1954 return;
1955 }
1956
1957 ba_notif = (void *)pkt->data;
1958 sta_id = ba_notif->sta_id;
1959 tid = ba_notif->tid;
1960
1961 txq = le16_to_cpu(ba_notif->scd_flow);
1962
1963
1964 index = le16_to_cpu(ba_notif->scd_ssn);
1965
1966 rcu_read_lock();
1967 mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, sta_id);
1968 if (WARN_ON_ONCE(!mvmsta)) {
1969 rcu_read_unlock();
1970 return;
1971 }
1972
1973 tid_data = &mvmsta->tid_data[tid];
1974
1975 ba_info.status.ampdu_ack_len = ba_notif->txed_2_done;
1976 ba_info.status.ampdu_len = ba_notif->txed;
1977 ba_info.status.tx_time = tid_data->tx_time;
1978 ba_info.status.status_driver_data[0] =
1979 (void *)(uintptr_t)ba_notif->reduced_txp;
1980
1981 rcu_read_unlock();
1982
1983 iwl_mvm_tx_reclaim(mvm, sta_id, tid, txq, index, &ba_info,
1984 tid_data->rate_n_flags);
1985
1986 IWL_DEBUG_TX_REPLY(mvm,
1987 "BA_NOTIFICATION Received from %pM, sta_id = %d\n",
1988 ba_notif->sta_addr, ba_notif->sta_id);
1989
1990 IWL_DEBUG_TX_REPLY(mvm,
1991 "TID = %d, SeqCtl = %d, bitmap = 0x%llx, scd_flow = %d, scd_ssn = %d sent:%d, acked:%d\n",
1992 ba_notif->tid, le16_to_cpu(ba_notif->seq_ctl),
1993 le64_to_cpu(ba_notif->bitmap), txq, index,
1994 ba_notif->txed, ba_notif->txed_2_done);
1995
1996 IWL_DEBUG_TX_REPLY(mvm, "reduced txp from ba notif %d\n",
1997 ba_notif->reduced_txp);
1998}
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, u32 flags)
2009{
2010 int ret;
2011 struct iwl_tx_path_flush_cmd_v1 flush_cmd = {
2012 .queues_ctl = cpu_to_le32(tfd_msk),
2013 .flush_ctl = cpu_to_le16(DUMP_TX_FIFO_FLUSH),
2014 };
2015
2016 WARN_ON(iwl_mvm_has_new_tx_api(mvm));
2017
2018 ret = iwl_mvm_send_cmd_pdu(mvm, TXPATH_FLUSH, flags,
2019 sizeof(flush_cmd), &flush_cmd);
2020 if (ret)
2021 IWL_ERR(mvm, "Failed to send flush command (%d)\n", ret);
2022 return ret;
2023}
2024
2025int iwl_mvm_flush_sta_tids(struct iwl_mvm *mvm, u32 sta_id,
2026 u16 tids, u32 flags)
2027{
2028 int ret;
2029 struct iwl_tx_path_flush_cmd flush_cmd = {
2030 .sta_id = cpu_to_le32(sta_id),
2031 .tid_mask = cpu_to_le16(tids),
2032 };
2033
2034 WARN_ON(!iwl_mvm_has_new_tx_api(mvm));
2035
2036 ret = iwl_mvm_send_cmd_pdu(mvm, TXPATH_FLUSH, flags,
2037 sizeof(flush_cmd), &flush_cmd);
2038 if (ret)
2039 IWL_ERR(mvm, "Failed to send flush command (%d)\n", ret);
2040 return ret;
2041}
2042
2043int iwl_mvm_flush_sta(struct iwl_mvm *mvm, void *sta, bool internal, u32 flags)
2044{
2045 struct iwl_mvm_int_sta *int_sta = sta;
2046 struct iwl_mvm_sta *mvm_sta = sta;
2047
2048 BUILD_BUG_ON(offsetof(struct iwl_mvm_int_sta, sta_id) !=
2049 offsetof(struct iwl_mvm_sta, sta_id));
2050
2051 if (iwl_mvm_has_new_tx_api(mvm))
2052 return iwl_mvm_flush_sta_tids(mvm, mvm_sta->sta_id,
2053 0xff | BIT(IWL_MGMT_TID), flags);
2054
2055 if (internal)
2056 return iwl_mvm_flush_tx_path(mvm, int_sta->tfd_queue_msk,
2057 flags);
2058
2059 return iwl_mvm_flush_tx_path(mvm, mvm_sta->tfd_queue_msk, flags);
2060}
2061