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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
346
347
348 if (info->band != NL80211_BAND_2GHZ)
349 rate_idx += IWL_FIRST_OFDM_RATE;
350
351
352 BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0);
353
354
355 rate_plcp = iwl_mvm_mac80211_idx_to_hwrate(rate_idx);
356
357
358 if ((rate_idx >= IWL_FIRST_CCK_RATE) && (rate_idx <= IWL_LAST_CCK_RATE))
359 rate_flags |= RATE_MCS_CCK_MSK;
360
361 return (u32)rate_plcp | rate_flags;
362}
363
364static u32 iwl_mvm_get_tx_rate_n_flags(struct iwl_mvm *mvm,
365 struct ieee80211_tx_info *info,
366 struct ieee80211_sta *sta, __le16 fc)
367{
368 return iwl_mvm_get_tx_rate(mvm, info, sta) |
369 iwl_mvm_get_tx_ant(mvm, info, sta, fc);
370}
371
372
373
374
375void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, struct iwl_tx_cmd *tx_cmd,
376 struct ieee80211_tx_info *info,
377 struct ieee80211_sta *sta, __le16 fc)
378{
379
380 tx_cmd->rts_retry_limit = IWL_RTS_DFAULT_RETRY_LIMIT;
381
382
383 if (ieee80211_is_probe_resp(fc)) {
384 tx_cmd->data_retry_limit = IWL_MGMT_DFAULT_RETRY_LIMIT;
385 tx_cmd->rts_retry_limit =
386 min(tx_cmd->data_retry_limit, tx_cmd->rts_retry_limit);
387 } else if (ieee80211_is_back_req(fc)) {
388 tx_cmd->data_retry_limit = IWL_BAR_DFAULT_RETRY_LIMIT;
389 } else {
390 tx_cmd->data_retry_limit = IWL_DEFAULT_TX_RETRY;
391 }
392
393
394
395
396
397
398 if (ieee80211_is_data(fc) && sta) {
399 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
400
401 if (mvmsta->sta_state >= IEEE80211_STA_AUTHORIZED) {
402 tx_cmd->initial_rate_index = 0;
403 tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE);
404 return;
405 }
406 } else if (ieee80211_is_back_req(fc)) {
407 tx_cmd->tx_flags |=
408 cpu_to_le32(TX_CMD_FLG_ACK | TX_CMD_FLG_BAR);
409 }
410
411
412 tx_cmd->rate_n_flags =
413 cpu_to_le32(iwl_mvm_get_tx_rate_n_flags(mvm, info, sta, fc));
414}
415
416static inline void iwl_mvm_set_tx_cmd_pn(struct ieee80211_tx_info *info,
417 u8 *crypto_hdr)
418{
419 struct ieee80211_key_conf *keyconf = info->control.hw_key;
420 u64 pn;
421
422 pn = atomic64_inc_return(&keyconf->tx_pn);
423 crypto_hdr[0] = pn;
424 crypto_hdr[2] = 0;
425 crypto_hdr[3] = 0x20 | (keyconf->keyidx << 6);
426 crypto_hdr[1] = pn >> 8;
427 crypto_hdr[4] = pn >> 16;
428 crypto_hdr[5] = pn >> 24;
429 crypto_hdr[6] = pn >> 32;
430 crypto_hdr[7] = pn >> 40;
431}
432
433
434
435
436static void iwl_mvm_set_tx_cmd_crypto(struct iwl_mvm *mvm,
437 struct ieee80211_tx_info *info,
438 struct iwl_tx_cmd *tx_cmd,
439 struct sk_buff *skb_frag,
440 int hdrlen)
441{
442 struct ieee80211_key_conf *keyconf = info->control.hw_key;
443 u8 *crypto_hdr = skb_frag->data + hdrlen;
444 enum iwl_tx_cmd_sec_ctrl type = TX_CMD_SEC_CCM;
445 u64 pn;
446
447 switch (keyconf->cipher) {
448 case WLAN_CIPHER_SUITE_CCMP:
449 iwl_mvm_set_tx_cmd_ccmp(info, tx_cmd);
450 iwl_mvm_set_tx_cmd_pn(info, crypto_hdr);
451 break;
452
453 case WLAN_CIPHER_SUITE_TKIP:
454 tx_cmd->sec_ctl = TX_CMD_SEC_TKIP;
455 pn = atomic64_inc_return(&keyconf->tx_pn);
456 ieee80211_tkip_add_iv(crypto_hdr, keyconf, pn);
457 ieee80211_get_tkip_p2k(keyconf, skb_frag, tx_cmd->key);
458 break;
459
460 case WLAN_CIPHER_SUITE_WEP104:
461 tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128;
462
463 case WLAN_CIPHER_SUITE_WEP40:
464 tx_cmd->sec_ctl |= TX_CMD_SEC_WEP |
465 ((keyconf->keyidx << TX_CMD_SEC_WEP_KEY_IDX_POS) &
466 TX_CMD_SEC_WEP_KEY_IDX_MSK);
467
468 memcpy(&tx_cmd->key[3], keyconf->key, keyconf->keylen);
469 break;
470 case WLAN_CIPHER_SUITE_GCMP:
471 case WLAN_CIPHER_SUITE_GCMP_256:
472 type = TX_CMD_SEC_GCMP;
473
474 case WLAN_CIPHER_SUITE_CCMP_256:
475
476
477
478
479
480
481 tx_cmd->sec_ctl |= type | TX_CMD_SEC_KEY_FROM_TABLE;
482 tx_cmd->key[0] = keyconf->hw_key_idx;
483 iwl_mvm_set_tx_cmd_pn(info, crypto_hdr);
484 break;
485 default:
486 tx_cmd->sec_ctl |= TX_CMD_SEC_EXT;
487 }
488}
489
490
491
492
493static struct iwl_device_tx_cmd *
494iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb,
495 struct ieee80211_tx_info *info, int hdrlen,
496 struct ieee80211_sta *sta, u8 sta_id)
497{
498 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
499 struct iwl_device_tx_cmd *dev_cmd;
500 struct iwl_tx_cmd *tx_cmd;
501
502 dev_cmd = iwl_trans_alloc_tx_cmd(mvm->trans);
503
504 if (unlikely(!dev_cmd))
505 return NULL;
506
507 dev_cmd->hdr.cmd = TX_CMD;
508
509 if (iwl_mvm_has_new_tx_api(mvm)) {
510 u16 offload_assist = 0;
511 u32 rate_n_flags = 0;
512 u16 flags = 0;
513 struct iwl_mvm_sta *mvmsta = sta ?
514 iwl_mvm_sta_from_mac80211(sta) : NULL;
515
516 if (ieee80211_is_data_qos(hdr->frame_control)) {
517 u8 *qc = ieee80211_get_qos_ctl(hdr);
518
519 if (*qc & IEEE80211_QOS_CTL_A_MSDU_PRESENT)
520 offload_assist |= BIT(TX_CMD_OFFLD_AMSDU);
521 }
522
523 offload_assist = iwl_mvm_tx_csum(mvm, skb, hdr, info,
524 offload_assist);
525
526
527 if (ieee80211_hdrlen(hdr->frame_control) % 4 &&
528 !(offload_assist & BIT(TX_CMD_OFFLD_AMSDU)))
529 offload_assist |= BIT(TX_CMD_OFFLD_PAD);
530
531 if (!info->control.hw_key)
532 flags |= IWL_TX_FLAGS_ENCRYPT_DIS;
533
534
535
536
537
538
539 if (!sta || !ieee80211_is_data(hdr->frame_control) ||
540 mvmsta->sta_state < IEEE80211_STA_AUTHORIZED) {
541 flags |= IWL_TX_FLAGS_CMD_RATE;
542 rate_n_flags =
543 iwl_mvm_get_tx_rate_n_flags(mvm, info, sta,
544 hdr->frame_control);
545 }
546
547 if (mvm->trans->trans_cfg->device_family >=
548 IWL_DEVICE_FAMILY_AX210) {
549 struct iwl_tx_cmd_gen3 *cmd = (void *)dev_cmd->payload;
550
551 cmd->offload_assist |= cpu_to_le32(offload_assist);
552
553
554 cmd->len = cpu_to_le16((u16)skb->len);
555
556
557 memcpy(cmd->hdr, hdr, hdrlen);
558
559 cmd->flags = cpu_to_le16(flags);
560 cmd->rate_n_flags = cpu_to_le32(rate_n_flags);
561 } else {
562 struct iwl_tx_cmd_gen2 *cmd = (void *)dev_cmd->payload;
563
564 cmd->offload_assist |= cpu_to_le16(offload_assist);
565
566
567 cmd->len = cpu_to_le16((u16)skb->len);
568
569
570 memcpy(cmd->hdr, hdr, hdrlen);
571
572 cmd->flags = cpu_to_le32(flags);
573 cmd->rate_n_flags = cpu_to_le32(rate_n_flags);
574 }
575 goto out;
576 }
577
578 tx_cmd = (struct iwl_tx_cmd *)dev_cmd->payload;
579
580 if (info->control.hw_key)
581 iwl_mvm_set_tx_cmd_crypto(mvm, info, tx_cmd, skb, hdrlen);
582
583 iwl_mvm_set_tx_cmd(mvm, skb, tx_cmd, info, sta_id);
584
585 iwl_mvm_set_tx_cmd_rate(mvm, tx_cmd, info, sta, hdr->frame_control);
586
587
588 memcpy(tx_cmd->hdr, hdr, hdrlen);
589
590out:
591 return dev_cmd;
592}
593
594static void iwl_mvm_skb_prepare_status(struct sk_buff *skb,
595 struct iwl_device_tx_cmd *cmd)
596{
597 struct ieee80211_tx_info *skb_info = IEEE80211_SKB_CB(skb);
598
599 memset(&skb_info->status, 0, sizeof(skb_info->status));
600 memset(skb_info->driver_data, 0, sizeof(skb_info->driver_data));
601
602 skb_info->driver_data[1] = cmd;
603}
604
605static int iwl_mvm_get_ctrl_vif_queue(struct iwl_mvm *mvm,
606 struct ieee80211_tx_info *info,
607 struct ieee80211_hdr *hdr)
608{
609 struct iwl_mvm_vif *mvmvif =
610 iwl_mvm_vif_from_mac80211(info->control.vif);
611 __le16 fc = hdr->frame_control;
612
613 switch (info->control.vif->type) {
614 case NL80211_IFTYPE_AP:
615 case NL80211_IFTYPE_ADHOC:
616
617
618
619
620
621
622
623
624
625
626 if (ieee80211_is_mgmt(fc) &&
627 (!ieee80211_is_bufferable_mmpdu(fc) ||
628 ieee80211_is_deauth(fc) || ieee80211_is_disassoc(fc)))
629 return mvm->probe_queue;
630
631 if (!ieee80211_has_order(fc) && !ieee80211_is_probe_req(fc) &&
632 is_multicast_ether_addr(hdr->addr1))
633 return mvmvif->cab_queue;
634
635 WARN_ONCE(info->control.vif->type != NL80211_IFTYPE_ADHOC,
636 "fc=0x%02x", le16_to_cpu(fc));
637 return mvm->probe_queue;
638 case NL80211_IFTYPE_P2P_DEVICE:
639 if (ieee80211_is_mgmt(fc))
640 return mvm->p2p_dev_queue;
641
642 WARN_ON_ONCE(1);
643 return mvm->p2p_dev_queue;
644 default:
645 WARN_ONCE(1, "Not a ctrl vif, no available queue\n");
646 return -1;
647 }
648}
649
650static void iwl_mvm_probe_resp_set_noa(struct iwl_mvm *mvm,
651 struct sk_buff *skb)
652{
653 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
654 struct iwl_mvm_vif *mvmvif =
655 iwl_mvm_vif_from_mac80211(info->control.vif);
656 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
657 int base_len = (u8 *)mgmt->u.probe_resp.variable - (u8 *)mgmt;
658 struct iwl_probe_resp_data *resp_data;
659 u8 *ie, *pos;
660 u8 match[] = {
661 (WLAN_OUI_WFA >> 16) & 0xff,
662 (WLAN_OUI_WFA >> 8) & 0xff,
663 WLAN_OUI_WFA & 0xff,
664 WLAN_OUI_TYPE_WFA_P2P,
665 };
666
667 rcu_read_lock();
668
669 resp_data = rcu_dereference(mvmvif->probe_resp_data);
670 if (!resp_data)
671 goto out;
672
673 if (!resp_data->notif.noa_active)
674 goto out;
675
676 ie = (u8 *)cfg80211_find_ie_match(WLAN_EID_VENDOR_SPECIFIC,
677 mgmt->u.probe_resp.variable,
678 skb->len - base_len,
679 match, 4, 2);
680 if (!ie) {
681 IWL_DEBUG_TX(mvm, "probe resp doesn't have P2P IE\n");
682 goto out;
683 }
684
685 if (skb_tailroom(skb) < resp_data->noa_len) {
686 if (pskb_expand_head(skb, 0, resp_data->noa_len, GFP_ATOMIC)) {
687 IWL_ERR(mvm,
688 "Failed to reallocate probe resp\n");
689 goto out;
690 }
691 }
692
693 pos = skb_put(skb, resp_data->noa_len);
694
695 *pos++ = WLAN_EID_VENDOR_SPECIFIC;
696
697 *pos++ = resp_data->noa_len - 2;
698 *pos++ = (WLAN_OUI_WFA >> 16) & 0xff;
699 *pos++ = (WLAN_OUI_WFA >> 8) & 0xff;
700 *pos++ = WLAN_OUI_WFA & 0xff;
701 *pos++ = WLAN_OUI_TYPE_WFA_P2P;
702
703 memcpy(pos, &resp_data->notif.noa_attr,
704 resp_data->noa_len - sizeof(struct ieee80211_vendor_ie));
705
706out:
707 rcu_read_unlock();
708}
709
710int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
711{
712 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
713 struct ieee80211_tx_info info;
714 struct iwl_device_tx_cmd *dev_cmd;
715 u8 sta_id;
716 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
717 __le16 fc = hdr->frame_control;
718 bool offchannel = IEEE80211_SKB_CB(skb)->flags &
719 IEEE80211_TX_CTL_TX_OFFCHAN;
720 int queue = -1;
721
722 if (IWL_MVM_NON_TRANSMITTING_AP && ieee80211_is_probe_resp(fc))
723 return -1;
724
725 memcpy(&info, skb->cb, sizeof(info));
726
727 if (WARN_ON_ONCE(skb->len > IEEE80211_MAX_DATA_LEN + hdrlen))
728 return -1;
729
730 if (WARN_ON_ONCE(info.flags & IEEE80211_TX_CTL_AMPDU))
731 return -1;
732
733 if (info.control.vif) {
734 struct iwl_mvm_vif *mvmvif =
735 iwl_mvm_vif_from_mac80211(info.control.vif);
736
737 if (info.control.vif->type == NL80211_IFTYPE_P2P_DEVICE ||
738 info.control.vif->type == NL80211_IFTYPE_AP ||
739 info.control.vif->type == NL80211_IFTYPE_ADHOC) {
740 if (!ieee80211_is_data(hdr->frame_control))
741 sta_id = mvmvif->bcast_sta.sta_id;
742 else
743 sta_id = mvmvif->mcast_sta.sta_id;
744
745 queue = iwl_mvm_get_ctrl_vif_queue(mvm, &info, hdr);
746 } else if (info.control.vif->type == NL80211_IFTYPE_MONITOR) {
747 queue = mvm->snif_queue;
748 sta_id = mvm->snif_sta.sta_id;
749 } else if (info.control.vif->type == NL80211_IFTYPE_STATION &&
750 offchannel) {
751
752
753
754
755
756
757
758
759 sta_id = mvm->aux_sta.sta_id;
760 queue = mvm->aux_queue;
761 }
762 }
763
764 if (queue < 0) {
765 IWL_ERR(mvm, "No queue was found. Dropping TX\n");
766 return -1;
767 }
768
769 if (unlikely(ieee80211_is_probe_resp(fc)))
770 iwl_mvm_probe_resp_set_noa(mvm, skb);
771
772 IWL_DEBUG_TX(mvm, "station Id %d, queue=%d\n", sta_id, queue);
773
774 dev_cmd = iwl_mvm_set_tx_params(mvm, skb, &info, hdrlen, NULL, sta_id);
775 if (!dev_cmd)
776 return -1;
777
778
779 iwl_mvm_skb_prepare_status(skb, dev_cmd);
780
781 if (iwl_trans_tx(mvm->trans, skb, dev_cmd, queue)) {
782 iwl_trans_free_tx_cmd(mvm->trans, dev_cmd);
783 return -1;
784 }
785
786 return 0;
787}
788
789unsigned int iwl_mvm_max_amsdu_size(struct iwl_mvm *mvm,
790 struct ieee80211_sta *sta, unsigned int tid)
791{
792 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
793 enum nl80211_band band = mvmsta->vif->bss_conf.chandef.chan->band;
794 u8 ac = tid_to_mac80211_ac[tid];
795 unsigned int txf;
796 int lmac = IWL_LMAC_24G_INDEX;
797
798 if (iwl_mvm_is_cdb_supported(mvm) &&
799 band == NL80211_BAND_5GHZ)
800 lmac = IWL_LMAC_5G_INDEX;
801
802
803 if (sta->he_cap.has_he && !WARN_ON(!iwl_mvm_has_new_tx_api(mvm)))
804 ac += 4;
805
806 txf = iwl_mvm_mac_ac_to_tx_fifo(mvm, ac);
807
808
809
810
811
812
813
814 return min_t(unsigned int, mvmsta->max_amsdu_len,
815 mvm->fwrt.smem_cfg.lmac[lmac].txfifo_size[txf] - 256);
816}
817
818#ifdef CONFIG_INET
819
820static int
821iwl_mvm_tx_tso_segment(struct sk_buff *skb, unsigned int num_subframes,
822 netdev_features_t netdev_flags,
823 struct sk_buff_head *mpdus_skb)
824{
825 struct sk_buff *tmp, *next;
826 struct ieee80211_hdr *hdr = (void *)skb->data;
827 char cb[sizeof(skb->cb)];
828 u16 i = 0;
829 unsigned int tcp_payload_len;
830 unsigned int mss = skb_shinfo(skb)->gso_size;
831 bool ipv4 = (skb->protocol == htons(ETH_P_IP));
832 bool qos = ieee80211_is_data_qos(hdr->frame_control);
833 u16 ip_base_id = ipv4 ? ntohs(ip_hdr(skb)->id) : 0;
834
835 skb_shinfo(skb)->gso_size = num_subframes * mss;
836 memcpy(cb, skb->cb, sizeof(cb));
837
838 next = skb_gso_segment(skb, netdev_flags);
839 skb_shinfo(skb)->gso_size = mss;
840 if (WARN_ON_ONCE(IS_ERR(next)))
841 return -EINVAL;
842 else if (next)
843 consume_skb(skb);
844
845 skb_list_walk_safe(next, tmp, next) {
846 memcpy(tmp->cb, cb, sizeof(tmp->cb));
847
848
849
850
851
852
853 tcp_payload_len = skb_tail_pointer(tmp) -
854 skb_transport_header(tmp) -
855 tcp_hdrlen(tmp) + tmp->data_len;
856
857 if (ipv4)
858 ip_hdr(tmp)->id = htons(ip_base_id + i * num_subframes);
859
860 if (tcp_payload_len > mss) {
861 skb_shinfo(tmp)->gso_size = mss;
862 } else {
863 if (qos) {
864 u8 *qc;
865
866 if (ipv4)
867 ip_send_check(ip_hdr(tmp));
868
869 qc = ieee80211_get_qos_ctl((void *)tmp->data);
870 *qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
871 }
872 skb_shinfo(tmp)->gso_size = 0;
873 }
874
875 skb_mark_not_on_list(tmp);
876 __skb_queue_tail(mpdus_skb, tmp);
877 i++;
878 }
879
880 return 0;
881}
882
883static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
884 struct ieee80211_tx_info *info,
885 struct ieee80211_sta *sta,
886 struct sk_buff_head *mpdus_skb)
887{
888 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
889 struct ieee80211_hdr *hdr = (void *)skb->data;
890 unsigned int mss = skb_shinfo(skb)->gso_size;
891 unsigned int num_subframes, tcp_payload_len, subf_len, max_amsdu_len;
892 u16 snap_ip_tcp, pad;
893 netdev_features_t netdev_flags = NETIF_F_CSUM_MASK | NETIF_F_SG;
894 u8 tid;
895
896 snap_ip_tcp = 8 + skb_transport_header(skb) - skb_network_header(skb) +
897 tcp_hdrlen(skb);
898
899 if (!mvmsta->max_amsdu_len ||
900 !ieee80211_is_data_qos(hdr->frame_control) ||
901 !mvmsta->amsdu_enabled)
902 return iwl_mvm_tx_tso_segment(skb, 1, netdev_flags, mpdus_skb);
903
904
905
906
907
908 if (skb->protocol == htons(ETH_P_IPV6) &&
909 ((struct ipv6hdr *)skb_network_header(skb))->nexthdr !=
910 IPPROTO_TCP) {
911 netdev_flags &= ~NETIF_F_CSUM_MASK;
912 return iwl_mvm_tx_tso_segment(skb, 1, netdev_flags, mpdus_skb);
913 }
914
915 tid = ieee80211_get_tid(hdr);
916 if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT))
917 return -EINVAL;
918
919
920
921
922
923 if ((info->flags & IEEE80211_TX_CTL_AMPDU &&
924 !mvmsta->tid_data[tid].amsdu_in_ampdu_allowed) ||
925 !(mvmsta->amsdu_enabled & BIT(tid)))
926 return iwl_mvm_tx_tso_segment(skb, 1, netdev_flags, mpdus_skb);
927
928
929
930
931 max_amsdu_len =
932 min_t(unsigned int, sta->max_amsdu_len,
933 iwl_mvm_max_amsdu_size(mvm, sta, tid));
934
935
936
937
938
939
940 if (info->flags & IEEE80211_TX_CTL_AMPDU &&
941 !sta->vht_cap.vht_supported)
942 max_amsdu_len = min_t(unsigned int, max_amsdu_len, 4095);
943
944
945 subf_len = sizeof(struct ethhdr) + snap_ip_tcp + mss;
946 pad = (4 - subf_len) & 0x3;
947
948
949
950
951
952 num_subframes = (max_amsdu_len + pad) / (subf_len + pad);
953
954 if (sta->max_amsdu_subframes &&
955 num_subframes > sta->max_amsdu_subframes)
956 num_subframes = sta->max_amsdu_subframes;
957
958 tcp_payload_len = skb_tail_pointer(skb) - skb_transport_header(skb) -
959 tcp_hdrlen(skb) + skb->data_len;
960
961
962
963
964
965
966
967 if ((num_subframes * 2 + skb_shinfo(skb)->nr_frags + 1) >
968 mvm->trans->max_skb_frags)
969 num_subframes = 1;
970
971 if (num_subframes > 1)
972 *ieee80211_get_qos_ctl(hdr) |= IEEE80211_QOS_CTL_A_MSDU_PRESENT;
973
974
975 if (num_subframes * mss >= tcp_payload_len) {
976 __skb_queue_tail(mpdus_skb, skb);
977 return 0;
978 }
979
980
981
982
983
984 return iwl_mvm_tx_tso_segment(skb, num_subframes, netdev_flags,
985 mpdus_skb);
986}
987#else
988static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
989 struct ieee80211_tx_info *info,
990 struct ieee80211_sta *sta,
991 struct sk_buff_head *mpdus_skb)
992{
993
994 WARN_ON(1);
995
996 return -1;
997}
998#endif
999
1000
1001static bool iwl_mvm_txq_should_update(struct iwl_mvm *mvm, int txq_id)
1002{
1003 unsigned long queue_tid_bitmap = mvm->queue_info[txq_id].tid_bitmap;
1004 unsigned long now = jiffies;
1005 int tid;
1006
1007 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
1008 return false;
1009
1010 for_each_set_bit(tid, &queue_tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1011 if (time_before(mvm->queue_info[txq_id].last_frame_time[tid] +
1012 IWL_MVM_DQA_QUEUE_TIMEOUT, now))
1013 return true;
1014 }
1015
1016 return false;
1017}
1018
1019static void iwl_mvm_tx_airtime(struct iwl_mvm *mvm,
1020 struct iwl_mvm_sta *mvmsta,
1021 int airtime)
1022{
1023 int mac = mvmsta->mac_id_n_color & FW_CTXT_ID_MSK;
1024 struct iwl_mvm_tcm_mac *mdata;
1025
1026 if (mac >= NUM_MAC_INDEX_DRIVER)
1027 return;
1028
1029 mdata = &mvm->tcm.data[mac];
1030
1031 if (mvm->tcm.paused)
1032 return;
1033
1034 if (time_after(jiffies, mvm->tcm.ts + MVM_TCM_PERIOD))
1035 schedule_delayed_work(&mvm->tcm.work, 0);
1036
1037 mdata->tx.airtime += airtime;
1038}
1039
1040static int iwl_mvm_tx_pkt_queued(struct iwl_mvm *mvm,
1041 struct iwl_mvm_sta *mvmsta, int tid)
1042{
1043 u32 ac = tid_to_mac80211_ac[tid];
1044 int mac = mvmsta->mac_id_n_color & FW_CTXT_ID_MSK;
1045 struct iwl_mvm_tcm_mac *mdata;
1046
1047 if (mac >= NUM_MAC_INDEX_DRIVER)
1048 return -EINVAL;
1049
1050 mdata = &mvm->tcm.data[mac];
1051
1052 mdata->tx.pkts[ac]++;
1053
1054 return 0;
1055}
1056
1057
1058
1059
1060
1061
1062static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb,
1063 struct ieee80211_tx_info *info,
1064 struct ieee80211_sta *sta)
1065{
1066 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1067 struct iwl_mvm_sta *mvmsta;
1068 struct iwl_device_tx_cmd *dev_cmd;
1069 __le16 fc;
1070 u16 seq_number = 0;
1071 u8 tid = IWL_MAX_TID_COUNT;
1072 u16 txq_id;
1073 bool is_ampdu = false;
1074 int hdrlen;
1075
1076 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1077 fc = hdr->frame_control;
1078 hdrlen = ieee80211_hdrlen(fc);
1079
1080 if (IWL_MVM_NON_TRANSMITTING_AP && ieee80211_is_probe_resp(fc))
1081 return -1;
1082
1083 if (WARN_ON_ONCE(!mvmsta))
1084 return -1;
1085
1086 if (WARN_ON_ONCE(mvmsta->sta_id == IWL_MVM_INVALID_STA))
1087 return -1;
1088
1089 if (unlikely(ieee80211_is_probe_resp(fc)))
1090 iwl_mvm_probe_resp_set_noa(mvm, skb);
1091
1092 dev_cmd = iwl_mvm_set_tx_params(mvm, skb, info, hdrlen,
1093 sta, mvmsta->sta_id);
1094 if (!dev_cmd)
1095 goto drop;
1096
1097
1098
1099
1100
1101
1102 info->flags &= ~IEEE80211_TX_STATUS_EOSP;
1103
1104 spin_lock(&mvmsta->lock);
1105
1106
1107
1108
1109
1110 if (ieee80211_is_data_qos(fc) && !ieee80211_is_qos_nullfunc(fc)) {
1111 tid = ieee80211_get_tid(hdr);
1112 if (WARN_ONCE(tid >= IWL_MAX_TID_COUNT, "Invalid TID %d", tid))
1113 goto drop_unlock_sta;
1114
1115 is_ampdu = info->flags & IEEE80211_TX_CTL_AMPDU;
1116 if (WARN_ONCE(is_ampdu &&
1117 mvmsta->tid_data[tid].state != IWL_AGG_ON,
1118 "Invalid internal agg state %d for TID %d",
1119 mvmsta->tid_data[tid].state, tid))
1120 goto drop_unlock_sta;
1121
1122 seq_number = mvmsta->tid_data[tid].seq_number;
1123 seq_number &= IEEE80211_SCTL_SEQ;
1124
1125 if (!iwl_mvm_has_new_tx_api(mvm)) {
1126 struct iwl_tx_cmd *tx_cmd = (void *)dev_cmd->payload;
1127
1128 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
1129 hdr->seq_ctrl |= cpu_to_le16(seq_number);
1130
1131 tx_cmd->hdr->seq_ctrl = hdr->seq_ctrl;
1132 }
1133 } else if (ieee80211_is_data(fc) && !ieee80211_is_data_qos(fc)) {
1134 tid = IWL_TID_NON_QOS;
1135 }
1136
1137 txq_id = mvmsta->tid_data[tid].txq_id;
1138
1139 WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM);
1140
1141 if (WARN_ONCE(txq_id == IWL_MVM_INVALID_QUEUE, "Invalid TXQ id")) {
1142 iwl_trans_free_tx_cmd(mvm->trans, dev_cmd);
1143 spin_unlock(&mvmsta->lock);
1144 return -1;
1145 }
1146
1147 if (!iwl_mvm_has_new_tx_api(mvm)) {
1148
1149 mvm->queue_info[txq_id].last_frame_time[tid] = jiffies;
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161 if (unlikely(mvm->queue_info[txq_id].status ==
1162 IWL_MVM_QUEUE_SHARED &&
1163 iwl_mvm_txq_should_update(mvm, txq_id)))
1164 schedule_work(&mvm->add_stream_wk);
1165 }
1166
1167 IWL_DEBUG_TX(mvm, "TX to [%d|%d] Q:%d - seq: 0x%x len %d\n",
1168 mvmsta->sta_id, tid, txq_id,
1169 IEEE80211_SEQ_TO_SN(seq_number), skb->len);
1170
1171
1172 iwl_mvm_skb_prepare_status(skb, dev_cmd);
1173
1174 if (iwl_trans_tx(mvm->trans, skb, dev_cmd, txq_id))
1175 goto drop_unlock_sta;
1176
1177 if (tid < IWL_MAX_TID_COUNT && !ieee80211_has_morefrags(fc))
1178 mvmsta->tid_data[tid].seq_number = seq_number + 0x10;
1179
1180 spin_unlock(&mvmsta->lock);
1181
1182 if (iwl_mvm_tx_pkt_queued(mvm, mvmsta,
1183 tid == IWL_MAX_TID_COUNT ? 0 : tid))
1184 goto drop;
1185
1186 return 0;
1187
1188drop_unlock_sta:
1189 iwl_trans_free_tx_cmd(mvm->trans, dev_cmd);
1190 spin_unlock(&mvmsta->lock);
1191drop:
1192 IWL_DEBUG_TX(mvm, "TX to [%d|%d] dropped\n", mvmsta->sta_id, tid);
1193 return -1;
1194}
1195
1196int iwl_mvm_tx_skb_sta(struct iwl_mvm *mvm, struct sk_buff *skb,
1197 struct ieee80211_sta *sta)
1198{
1199 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1200 struct ieee80211_tx_info info;
1201 struct sk_buff_head mpdus_skbs;
1202 unsigned int payload_len;
1203 int ret;
1204
1205 if (WARN_ON_ONCE(!mvmsta))
1206 return -1;
1207
1208 if (WARN_ON_ONCE(mvmsta->sta_id == IWL_MVM_INVALID_STA))
1209 return -1;
1210
1211 memcpy(&info, skb->cb, sizeof(info));
1212
1213 if (!skb_is_gso(skb))
1214 return iwl_mvm_tx_mpdu(mvm, skb, &info, sta);
1215
1216 payload_len = skb_tail_pointer(skb) - skb_transport_header(skb) -
1217 tcp_hdrlen(skb) + skb->data_len;
1218
1219 if (payload_len <= skb_shinfo(skb)->gso_size)
1220 return iwl_mvm_tx_mpdu(mvm, skb, &info, sta);
1221
1222 __skb_queue_head_init(&mpdus_skbs);
1223
1224 ret = iwl_mvm_tx_tso(mvm, skb, &info, sta, &mpdus_skbs);
1225 if (ret)
1226 return ret;
1227
1228 if (WARN_ON(skb_queue_empty(&mpdus_skbs)))
1229 return ret;
1230
1231 while (!skb_queue_empty(&mpdus_skbs)) {
1232 skb = __skb_dequeue(&mpdus_skbs);
1233
1234 ret = iwl_mvm_tx_mpdu(mvm, skb, &info, sta);
1235 if (ret) {
1236 __skb_queue_purge(&mpdus_skbs);
1237 return ret;
1238 }
1239 }
1240
1241 return 0;
1242}
1243
1244static void iwl_mvm_check_ratid_empty(struct iwl_mvm *mvm,
1245 struct ieee80211_sta *sta, u8 tid)
1246{
1247 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1248 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
1249 struct ieee80211_vif *vif = mvmsta->vif;
1250 u16 normalized_ssn;
1251
1252 lockdep_assert_held(&mvmsta->lock);
1253
1254 if ((tid_data->state == IWL_AGG_ON ||
1255 tid_data->state == IWL_EMPTYING_HW_QUEUE_DELBA) &&
1256 iwl_mvm_tid_queued(mvm, tid_data) == 0) {
1257
1258
1259
1260
1261
1262 ieee80211_sta_set_buffered(sta, tid, false);
1263 }
1264
1265
1266
1267
1268
1269 normalized_ssn = tid_data->ssn;
1270 if (mvm->trans->trans_cfg->gen2)
1271 normalized_ssn &= 0xff;
1272
1273 if (normalized_ssn != tid_data->next_reclaimed)
1274 return;
1275
1276 switch (tid_data->state) {
1277 case IWL_EMPTYING_HW_QUEUE_ADDBA:
1278 IWL_DEBUG_TX_QUEUES(mvm,
1279 "Can continue addBA flow ssn = next_recl = %d\n",
1280 tid_data->next_reclaimed);
1281 tid_data->state = IWL_AGG_STARTING;
1282 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1283 break;
1284
1285 case IWL_EMPTYING_HW_QUEUE_DELBA:
1286 IWL_DEBUG_TX_QUEUES(mvm,
1287 "Can continue DELBA flow ssn = next_recl = %d\n",
1288 tid_data->next_reclaimed);
1289 tid_data->state = IWL_AGG_OFF;
1290 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1291 break;
1292
1293 default:
1294 break;
1295 }
1296}
1297
1298#ifdef CONFIG_IWLWIFI_DEBUG
1299const char *iwl_mvm_get_tx_fail_reason(u32 status)
1300{
1301#define TX_STATUS_FAIL(x) case TX_STATUS_FAIL_ ## x: return #x
1302#define TX_STATUS_POSTPONE(x) case TX_STATUS_POSTPONE_ ## x: return #x
1303
1304 switch (status & TX_STATUS_MSK) {
1305 case TX_STATUS_SUCCESS:
1306 return "SUCCESS";
1307 TX_STATUS_POSTPONE(DELAY);
1308 TX_STATUS_POSTPONE(FEW_BYTES);
1309 TX_STATUS_POSTPONE(BT_PRIO);
1310 TX_STATUS_POSTPONE(QUIET_PERIOD);
1311 TX_STATUS_POSTPONE(CALC_TTAK);
1312 TX_STATUS_FAIL(INTERNAL_CROSSED_RETRY);
1313 TX_STATUS_FAIL(SHORT_LIMIT);
1314 TX_STATUS_FAIL(LONG_LIMIT);
1315 TX_STATUS_FAIL(UNDERRUN);
1316 TX_STATUS_FAIL(DRAIN_FLOW);
1317 TX_STATUS_FAIL(RFKILL_FLUSH);
1318 TX_STATUS_FAIL(LIFE_EXPIRE);
1319 TX_STATUS_FAIL(DEST_PS);
1320 TX_STATUS_FAIL(HOST_ABORTED);
1321 TX_STATUS_FAIL(BT_RETRY);
1322 TX_STATUS_FAIL(STA_INVALID);
1323 TX_STATUS_FAIL(FRAG_DROPPED);
1324 TX_STATUS_FAIL(TID_DISABLE);
1325 TX_STATUS_FAIL(FIFO_FLUSHED);
1326 TX_STATUS_FAIL(SMALL_CF_POLL);
1327 TX_STATUS_FAIL(FW_DROP);
1328 TX_STATUS_FAIL(STA_COLOR_MISMATCH);
1329 }
1330
1331 return "UNKNOWN";
1332
1333#undef TX_STATUS_FAIL
1334#undef TX_STATUS_POSTPONE
1335}
1336#endif
1337
1338void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags,
1339 enum nl80211_band band,
1340 struct ieee80211_tx_rate *r)
1341{
1342 if (rate_n_flags & RATE_HT_MCS_GF_MSK)
1343 r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
1344 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
1345 case RATE_MCS_CHAN_WIDTH_20:
1346 break;
1347 case RATE_MCS_CHAN_WIDTH_40:
1348 r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
1349 break;
1350 case RATE_MCS_CHAN_WIDTH_80:
1351 r->flags |= IEEE80211_TX_RC_80_MHZ_WIDTH;
1352 break;
1353 case RATE_MCS_CHAN_WIDTH_160:
1354 r->flags |= IEEE80211_TX_RC_160_MHZ_WIDTH;
1355 break;
1356 }
1357 if (rate_n_flags & RATE_MCS_SGI_MSK)
1358 r->flags |= IEEE80211_TX_RC_SHORT_GI;
1359 if (rate_n_flags & RATE_MCS_HT_MSK) {
1360 r->flags |= IEEE80211_TX_RC_MCS;
1361 r->idx = rate_n_flags & RATE_HT_MCS_INDEX_MSK;
1362 } else if (rate_n_flags & RATE_MCS_VHT_MSK) {
1363 ieee80211_rate_set_vht(
1364 r, rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK,
1365 ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >>
1366 RATE_VHT_MCS_NSS_POS) + 1);
1367 r->flags |= IEEE80211_TX_RC_VHT_MCS;
1368 } else {
1369 r->idx = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags,
1370 band);
1371 }
1372}
1373
1374
1375
1376
1377static void iwl_mvm_hwrate_to_tx_status(u32 rate_n_flags,
1378 struct ieee80211_tx_info *info)
1379{
1380 struct ieee80211_tx_rate *r = &info->status.rates[0];
1381
1382 info->status.antenna =
1383 ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
1384 iwl_mvm_hwrate_to_tx_rate(rate_n_flags, info->band, r);
1385}
1386
1387static void iwl_mvm_tx_status_check_trigger(struct iwl_mvm *mvm,
1388 u32 status)
1389{
1390 struct iwl_fw_dbg_trigger_tlv *trig;
1391 struct iwl_fw_dbg_trigger_tx_status *status_trig;
1392 int i;
1393
1394 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
1395 FW_DBG_TRIGGER_TX_STATUS);
1396 if (!trig)
1397 return;
1398
1399 status_trig = (void *)trig->data;
1400
1401 for (i = 0; i < ARRAY_SIZE(status_trig->statuses); i++) {
1402
1403 if (!status_trig->statuses[i].status)
1404 break;
1405
1406 if (status_trig->statuses[i].status != (status & TX_STATUS_MSK))
1407 continue;
1408
1409 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
1410 "Tx status %d was received",
1411 status & TX_STATUS_MSK);
1412 break;
1413 }
1414}
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429static inline u32 iwl_mvm_get_scd_ssn(struct iwl_mvm *mvm,
1430 struct iwl_mvm_tx_resp *tx_resp)
1431{
1432 return le32_to_cpup((__le32 *)iwl_mvm_get_agg_status(mvm, tx_resp) +
1433 tx_resp->frame_count) & 0xfff;
1434}
1435
1436static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
1437 struct iwl_rx_packet *pkt)
1438{
1439 struct ieee80211_sta *sta;
1440 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
1441 int txq_id = SEQ_TO_QUEUE(sequence);
1442
1443 struct iwl_mvm_tx_resp *tx_resp = (void *)pkt->data;
1444 int sta_id = IWL_MVM_TX_RES_GET_RA(tx_resp->ra_tid);
1445 int tid = IWL_MVM_TX_RES_GET_TID(tx_resp->ra_tid);
1446 struct agg_tx_status *agg_status =
1447 iwl_mvm_get_agg_status(mvm, tx_resp);
1448 u32 status = le16_to_cpu(agg_status->status);
1449 u16 ssn = iwl_mvm_get_scd_ssn(mvm, tx_resp);
1450 struct sk_buff_head skbs;
1451 u8 skb_freed = 0;
1452 u8 lq_color;
1453 u16 next_reclaimed, seq_ctl;
1454 bool is_ndp = false;
1455
1456 __skb_queue_head_init(&skbs);
1457
1458 if (iwl_mvm_has_new_tx_api(mvm))
1459 txq_id = le16_to_cpu(tx_resp->tx_queue);
1460
1461 seq_ctl = le16_to_cpu(tx_resp->seq_ctl);
1462
1463
1464 iwl_trans_reclaim(mvm->trans, txq_id, ssn, &skbs);
1465
1466 while (!skb_queue_empty(&skbs)) {
1467 struct sk_buff *skb = __skb_dequeue(&skbs);
1468 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1469 struct ieee80211_hdr *hdr = (void *)skb->data;
1470 bool flushed = false;
1471
1472 skb_freed++;
1473
1474 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1475
1476 memset(&info->status, 0, sizeof(info->status));
1477
1478
1479 switch (status & TX_STATUS_MSK) {
1480 case TX_STATUS_SUCCESS:
1481 case TX_STATUS_DIRECT_DONE:
1482 info->flags |= IEEE80211_TX_STAT_ACK;
1483 break;
1484 case TX_STATUS_FAIL_FIFO_FLUSHED:
1485 case TX_STATUS_FAIL_DRAIN_FLOW:
1486 flushed = true;
1487 break;
1488 case TX_STATUS_FAIL_DEST_PS:
1489
1490
1491
1492 WARN_ON(1);
1493 info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
1494 break;
1495 default:
1496 break;
1497 }
1498
1499 if ((status & TX_STATUS_MSK) != TX_STATUS_SUCCESS &&
1500 ieee80211_is_mgmt(hdr->frame_control))
1501 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
1502
1503
1504
1505
1506
1507
1508 if (skb_freed > 1)
1509 info->flags |= IEEE80211_TX_STAT_ACK;
1510
1511 iwl_mvm_tx_status_check_trigger(mvm, status);
1512
1513 info->status.rates[0].count = tx_resp->failure_frame + 1;
1514 iwl_mvm_hwrate_to_tx_status(le32_to_cpu(tx_resp->initial_rate),
1515 info);
1516 info->status.status_driver_data[1] =
1517 (void *)(uintptr_t)le32_to_cpu(tx_resp->initial_rate);
1518
1519
1520 if (info->flags & IEEE80211_TX_CTL_AMPDU &&
1521 !(info->flags & IEEE80211_TX_STAT_ACK) &&
1522 !(info->flags & IEEE80211_TX_STAT_TX_FILTERED) && !flushed)
1523 info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
1524 info->flags &= ~IEEE80211_TX_CTL_AMPDU;
1525
1526
1527 if (ieee80211_is_back_req(hdr->frame_control))
1528 seq_ctl = 0;
1529 else if (status != TX_STATUS_SUCCESS)
1530 seq_ctl = le16_to_cpu(hdr->seq_ctrl);
1531
1532 if (unlikely(!seq_ctl)) {
1533 struct ieee80211_hdr *hdr = (void *)skb->data;
1534
1535
1536
1537
1538
1539
1540
1541
1542 if (ieee80211_is_qos_nullfunc(hdr->frame_control))
1543 is_ndp = true;
1544 }
1545
1546
1547
1548
1549
1550 info->status.tx_time =
1551 le16_to_cpu(tx_resp->wireless_media_time);
1552 BUILD_BUG_ON(ARRAY_SIZE(info->status.status_driver_data) < 1);
1553 lq_color = TX_RES_RATE_TABLE_COL_GET(tx_resp->tlc_info);
1554 info->status.status_driver_data[0] =
1555 RS_DRV_DATA_PACK(lq_color, tx_resp->reduced_tpc);
1556
1557 ieee80211_tx_status(mvm->hw, skb);
1558 }
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574 next_reclaimed = ssn;
1575
1576 IWL_DEBUG_TX_REPLY(mvm,
1577 "TXQ %d status %s (0x%08x)\n",
1578 txq_id, iwl_mvm_get_tx_fail_reason(status), status);
1579
1580 IWL_DEBUG_TX_REPLY(mvm,
1581 "\t\t\t\tinitial_rate 0x%x retries %d, idx=%d ssn=%d next_reclaimed=0x%x seq_ctl=0x%x\n",
1582 le32_to_cpu(tx_resp->initial_rate),
1583 tx_resp->failure_frame, SEQ_TO_INDEX(sequence),
1584 ssn, next_reclaimed, seq_ctl);
1585
1586 rcu_read_lock();
1587
1588 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1589
1590
1591
1592
1593 if (WARN_ON_ONCE(!sta))
1594 goto out;
1595
1596 if (!IS_ERR(sta)) {
1597 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1598
1599 iwl_mvm_tx_airtime(mvm, mvmsta,
1600 le16_to_cpu(tx_resp->wireless_media_time));
1601
1602 if ((status & TX_STATUS_MSK) != TX_STATUS_SUCCESS &&
1603 mvmsta->sta_state < IEEE80211_STA_AUTHORIZED)
1604 iwl_mvm_toggle_tx_ant(mvm, &mvmsta->tx_ant);
1605
1606 if (sta->wme && tid != IWL_MGMT_TID) {
1607 struct iwl_mvm_tid_data *tid_data =
1608 &mvmsta->tid_data[tid];
1609 bool send_eosp_ndp = false;
1610
1611 spin_lock_bh(&mvmsta->lock);
1612
1613 if (!is_ndp) {
1614 tid_data->next_reclaimed = next_reclaimed;
1615 IWL_DEBUG_TX_REPLY(mvm,
1616 "Next reclaimed packet:%d\n",
1617 next_reclaimed);
1618 } else {
1619 IWL_DEBUG_TX_REPLY(mvm,
1620 "NDP - don't update next_reclaimed\n");
1621 }
1622
1623 iwl_mvm_check_ratid_empty(mvm, sta, tid);
1624
1625 if (mvmsta->sleep_tx_count) {
1626 mvmsta->sleep_tx_count--;
1627 if (mvmsta->sleep_tx_count &&
1628 !iwl_mvm_tid_queued(mvm, tid_data)) {
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642 send_eosp_ndp = true;
1643 }
1644 }
1645
1646 spin_unlock_bh(&mvmsta->lock);
1647 if (send_eosp_ndp) {
1648 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta,
1649 IEEE80211_FRAME_RELEASE_UAPSD,
1650 1, tid, false, false);
1651 mvmsta->sleep_tx_count = 0;
1652 ieee80211_send_eosp_nullfunc(sta, tid);
1653 }
1654 }
1655
1656 if (mvmsta->next_status_eosp) {
1657 mvmsta->next_status_eosp = false;
1658 ieee80211_sta_eosp(sta);
1659 }
1660 }
1661out:
1662 rcu_read_unlock();
1663}
1664
1665#ifdef CONFIG_IWLWIFI_DEBUG
1666#define AGG_TX_STATE_(x) case AGG_TX_STATE_ ## x: return #x
1667static const char *iwl_get_agg_tx_status(u16 status)
1668{
1669 switch (status & AGG_TX_STATE_STATUS_MSK) {
1670 AGG_TX_STATE_(TRANSMITTED);
1671 AGG_TX_STATE_(UNDERRUN);
1672 AGG_TX_STATE_(BT_PRIO);
1673 AGG_TX_STATE_(FEW_BYTES);
1674 AGG_TX_STATE_(ABORT);
1675 AGG_TX_STATE_(TX_ON_AIR_DROP);
1676 AGG_TX_STATE_(LAST_SENT_TRY_CNT);
1677 AGG_TX_STATE_(LAST_SENT_BT_KILL);
1678 AGG_TX_STATE_(SCD_QUERY);
1679 AGG_TX_STATE_(TEST_BAD_CRC32);
1680 AGG_TX_STATE_(RESPONSE);
1681 AGG_TX_STATE_(DUMP_TX);
1682 AGG_TX_STATE_(DELAY_TX);
1683 }
1684
1685 return "UNKNOWN";
1686}
1687
1688static void iwl_mvm_rx_tx_cmd_agg_dbg(struct iwl_mvm *mvm,
1689 struct iwl_rx_packet *pkt)
1690{
1691 struct iwl_mvm_tx_resp *tx_resp = (void *)pkt->data;
1692 struct agg_tx_status *frame_status =
1693 iwl_mvm_get_agg_status(mvm, tx_resp);
1694 int i;
1695
1696 for (i = 0; i < tx_resp->frame_count; i++) {
1697 u16 fstatus = le16_to_cpu(frame_status[i].status);
1698
1699 IWL_DEBUG_TX_REPLY(mvm,
1700 "status %s (0x%04x), try-count (%d) seq (0x%x)\n",
1701 iwl_get_agg_tx_status(fstatus),
1702 fstatus & AGG_TX_STATE_STATUS_MSK,
1703 (fstatus & AGG_TX_STATE_TRY_CNT_MSK) >>
1704 AGG_TX_STATE_TRY_CNT_POS,
1705 le16_to_cpu(frame_status[i].sequence));
1706 }
1707}
1708#else
1709static void iwl_mvm_rx_tx_cmd_agg_dbg(struct iwl_mvm *mvm,
1710 struct iwl_rx_packet *pkt)
1711{}
1712#endif
1713
1714static void iwl_mvm_rx_tx_cmd_agg(struct iwl_mvm *mvm,
1715 struct iwl_rx_packet *pkt)
1716{
1717 struct iwl_mvm_tx_resp *tx_resp = (void *)pkt->data;
1718 int sta_id = IWL_MVM_TX_RES_GET_RA(tx_resp->ra_tid);
1719 int tid = IWL_MVM_TX_RES_GET_TID(tx_resp->ra_tid);
1720 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
1721 struct iwl_mvm_sta *mvmsta;
1722 int queue = SEQ_TO_QUEUE(sequence);
1723 struct ieee80211_sta *sta;
1724
1725 if (WARN_ON_ONCE(queue < IWL_MVM_DQA_MIN_DATA_QUEUE &&
1726 (queue != IWL_MVM_DQA_BSS_CLIENT_QUEUE)))
1727 return;
1728
1729 iwl_mvm_rx_tx_cmd_agg_dbg(mvm, pkt);
1730
1731 rcu_read_lock();
1732
1733 mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, sta_id);
1734
1735 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1736 if (WARN_ON_ONCE(!sta || !sta->wme)) {
1737 rcu_read_unlock();
1738 return;
1739 }
1740
1741 if (!WARN_ON_ONCE(!mvmsta)) {
1742 mvmsta->tid_data[tid].rate_n_flags =
1743 le32_to_cpu(tx_resp->initial_rate);
1744 mvmsta->tid_data[tid].tx_time =
1745 le16_to_cpu(tx_resp->wireless_media_time);
1746 mvmsta->tid_data[tid].lq_color =
1747 TX_RES_RATE_TABLE_COL_GET(tx_resp->tlc_info);
1748 iwl_mvm_tx_airtime(mvm, mvmsta,
1749 le16_to_cpu(tx_resp->wireless_media_time));
1750 }
1751
1752 rcu_read_unlock();
1753}
1754
1755void iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
1756{
1757 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1758 struct iwl_mvm_tx_resp *tx_resp = (void *)pkt->data;
1759
1760 if (tx_resp->frame_count == 1)
1761 iwl_mvm_rx_tx_cmd_single(mvm, pkt);
1762 else
1763 iwl_mvm_rx_tx_cmd_agg(mvm, pkt);
1764}
1765
1766static void iwl_mvm_tx_reclaim(struct iwl_mvm *mvm, int sta_id, int tid,
1767 int txq, int index,
1768 struct ieee80211_tx_info *ba_info, u32 rate)
1769{
1770 struct sk_buff_head reclaimed_skbs;
1771 struct iwl_mvm_tid_data *tid_data;
1772 struct ieee80211_sta *sta;
1773 struct iwl_mvm_sta *mvmsta;
1774 struct sk_buff *skb;
1775 int freed;
1776
1777 if (WARN_ONCE(sta_id >= IWL_MVM_STATION_COUNT ||
1778 tid > IWL_MAX_TID_COUNT,
1779 "sta_id %d tid %d", sta_id, tid))
1780 return;
1781
1782 rcu_read_lock();
1783
1784 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1785
1786
1787 if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) {
1788 rcu_read_unlock();
1789 return;
1790 }
1791
1792 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1793 tid_data = &mvmsta->tid_data[tid];
1794
1795 if (tid_data->txq_id != txq) {
1796 IWL_ERR(mvm,
1797 "invalid BA notification: Q %d, tid %d\n",
1798 tid_data->txq_id, tid);
1799 rcu_read_unlock();
1800 return;
1801 }
1802
1803 __skb_queue_head_init(&reclaimed_skbs);
1804
1805
1806
1807
1808
1809
1810 iwl_trans_reclaim(mvm->trans, txq, index, &reclaimed_skbs);
1811
1812 spin_lock_bh(&mvmsta->lock);
1813
1814 tid_data->next_reclaimed = index;
1815
1816 iwl_mvm_check_ratid_empty(mvm, sta, tid);
1817
1818 freed = 0;
1819
1820
1821 ba_info->status.status_driver_data[0] =
1822 RS_DRV_DATA_PACK(tid_data->lq_color,
1823 ba_info->status.status_driver_data[0]);
1824 ba_info->status.status_driver_data[1] = (void *)(uintptr_t)rate;
1825
1826 skb_queue_walk(&reclaimed_skbs, skb) {
1827 struct ieee80211_hdr *hdr = (void *)skb->data;
1828 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1829
1830 if (ieee80211_is_data_qos(hdr->frame_control))
1831 freed++;
1832 else
1833 WARN_ON_ONCE(tid != IWL_MAX_TID_COUNT);
1834
1835 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1836
1837 memset(&info->status, 0, sizeof(info->status));
1838
1839
1840
1841
1842 info->flags |= IEEE80211_TX_STAT_ACK;
1843
1844
1845
1846 if (freed == 1) {
1847 info->flags |= IEEE80211_TX_STAT_AMPDU;
1848 memcpy(&info->status, &ba_info->status,
1849 sizeof(ba_info->status));
1850 iwl_mvm_hwrate_to_tx_status(rate, info);
1851 }
1852 }
1853
1854 spin_unlock_bh(&mvmsta->lock);
1855
1856
1857
1858
1859
1860 if (skb_queue_empty(&reclaimed_skbs)) {
1861 struct ieee80211_chanctx_conf *chanctx_conf = NULL;
1862
1863 if (mvmsta->vif)
1864 chanctx_conf =
1865 rcu_dereference(mvmsta->vif->chanctx_conf);
1866
1867 if (WARN_ON_ONCE(!chanctx_conf))
1868 goto out;
1869
1870 ba_info->band = chanctx_conf->def.chan->band;
1871 iwl_mvm_hwrate_to_tx_status(rate, ba_info);
1872
1873 if (!iwl_mvm_has_tlc_offload(mvm)) {
1874 IWL_DEBUG_TX_REPLY(mvm,
1875 "No reclaim. Update rs directly\n");
1876 iwl_mvm_rs_tx_status(mvm, sta, tid, ba_info, false);
1877 }
1878 }
1879
1880out:
1881 rcu_read_unlock();
1882
1883 while (!skb_queue_empty(&reclaimed_skbs)) {
1884 skb = __skb_dequeue(&reclaimed_skbs);
1885 ieee80211_tx_status(mvm->hw, skb);
1886 }
1887}
1888
1889void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
1890{
1891 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1892 int sta_id, tid, txq, index;
1893 struct ieee80211_tx_info ba_info = {};
1894 struct iwl_mvm_ba_notif *ba_notif;
1895 struct iwl_mvm_tid_data *tid_data;
1896 struct iwl_mvm_sta *mvmsta;
1897
1898 ba_info.flags = IEEE80211_TX_STAT_AMPDU;
1899
1900 if (iwl_mvm_has_new_tx_api(mvm)) {
1901 struct iwl_mvm_compressed_ba_notif *ba_res =
1902 (void *)pkt->data;
1903 u8 lq_color = TX_RES_RATE_TABLE_COL_GET(ba_res->tlc_rate_info);
1904 int i;
1905
1906 sta_id = ba_res->sta_id;
1907 ba_info.status.ampdu_ack_len = (u8)le16_to_cpu(ba_res->done);
1908 ba_info.status.ampdu_len = (u8)le16_to_cpu(ba_res->txed);
1909 ba_info.status.tx_time =
1910 (u16)le32_to_cpu(ba_res->wireless_time);
1911 ba_info.status.status_driver_data[0] =
1912 (void *)(uintptr_t)ba_res->reduced_txp;
1913
1914 if (!le16_to_cpu(ba_res->tfd_cnt))
1915 goto out;
1916
1917 rcu_read_lock();
1918
1919 mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, sta_id);
1920 if (!mvmsta)
1921 goto out_unlock;
1922
1923
1924 for (i = 0; i < le16_to_cpu(ba_res->tfd_cnt); i++) {
1925 struct iwl_mvm_compressed_ba_tfd *ba_tfd =
1926 &ba_res->tfd[i];
1927
1928 tid = ba_tfd->tid;
1929 if (tid == IWL_MGMT_TID)
1930 tid = IWL_MAX_TID_COUNT;
1931
1932 mvmsta->tid_data[i].lq_color = lq_color;
1933 iwl_mvm_tx_reclaim(mvm, sta_id, tid,
1934 (int)(le16_to_cpu(ba_tfd->q_num)),
1935 le16_to_cpu(ba_tfd->tfd_index),
1936 &ba_info,
1937 le32_to_cpu(ba_res->tx_rate));
1938 }
1939
1940 iwl_mvm_tx_airtime(mvm, mvmsta,
1941 le32_to_cpu(ba_res->wireless_time));
1942out_unlock:
1943 rcu_read_unlock();
1944out:
1945 IWL_DEBUG_TX_REPLY(mvm,
1946 "BA_NOTIFICATION Received from sta_id = %d, flags %x, sent:%d, acked:%d\n",
1947 sta_id, le32_to_cpu(ba_res->flags),
1948 le16_to_cpu(ba_res->txed),
1949 le16_to_cpu(ba_res->done));
1950 return;
1951 }
1952
1953 ba_notif = (void *)pkt->data;
1954 sta_id = ba_notif->sta_id;
1955 tid = ba_notif->tid;
1956
1957 txq = le16_to_cpu(ba_notif->scd_flow);
1958
1959
1960 index = le16_to_cpu(ba_notif->scd_ssn);
1961
1962 rcu_read_lock();
1963 mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, sta_id);
1964 if (WARN_ON_ONCE(!mvmsta)) {
1965 rcu_read_unlock();
1966 return;
1967 }
1968
1969 tid_data = &mvmsta->tid_data[tid];
1970
1971 ba_info.status.ampdu_ack_len = ba_notif->txed_2_done;
1972 ba_info.status.ampdu_len = ba_notif->txed;
1973 ba_info.status.tx_time = tid_data->tx_time;
1974 ba_info.status.status_driver_data[0] =
1975 (void *)(uintptr_t)ba_notif->reduced_txp;
1976
1977 rcu_read_unlock();
1978
1979 iwl_mvm_tx_reclaim(mvm, sta_id, tid, txq, index, &ba_info,
1980 tid_data->rate_n_flags);
1981
1982 IWL_DEBUG_TX_REPLY(mvm,
1983 "BA_NOTIFICATION Received from %pM, sta_id = %d\n",
1984 ba_notif->sta_addr, ba_notif->sta_id);
1985
1986 IWL_DEBUG_TX_REPLY(mvm,
1987 "TID = %d, SeqCtl = %d, bitmap = 0x%llx, scd_flow = %d, scd_ssn = %d sent:%d, acked:%d\n",
1988 ba_notif->tid, le16_to_cpu(ba_notif->seq_ctl),
1989 le64_to_cpu(ba_notif->bitmap), txq, index,
1990 ba_notif->txed, ba_notif->txed_2_done);
1991
1992 IWL_DEBUG_TX_REPLY(mvm, "reduced txp from ba notif %d\n",
1993 ba_notif->reduced_txp);
1994}
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, u32 flags)
2005{
2006 int ret;
2007 struct iwl_tx_path_flush_cmd_v1 flush_cmd = {
2008 .queues_ctl = cpu_to_le32(tfd_msk),
2009 .flush_ctl = cpu_to_le16(DUMP_TX_FIFO_FLUSH),
2010 };
2011
2012 WARN_ON(iwl_mvm_has_new_tx_api(mvm));
2013
2014 ret = iwl_mvm_send_cmd_pdu(mvm, TXPATH_FLUSH, flags,
2015 sizeof(flush_cmd), &flush_cmd);
2016 if (ret)
2017 IWL_ERR(mvm, "Failed to send flush command (%d)\n", ret);
2018 return ret;
2019}
2020
2021int iwl_mvm_flush_sta_tids(struct iwl_mvm *mvm, u32 sta_id,
2022 u16 tids, u32 flags)
2023{
2024 int ret;
2025 struct iwl_tx_path_flush_cmd flush_cmd = {
2026 .sta_id = cpu_to_le32(sta_id),
2027 .tid_mask = cpu_to_le16(tids),
2028 };
2029
2030 WARN_ON(!iwl_mvm_has_new_tx_api(mvm));
2031
2032 ret = iwl_mvm_send_cmd_pdu(mvm, TXPATH_FLUSH, flags,
2033 sizeof(flush_cmd), &flush_cmd);
2034 if (ret)
2035 IWL_ERR(mvm, "Failed to send flush command (%d)\n", ret);
2036 return ret;
2037}
2038
2039int iwl_mvm_flush_sta(struct iwl_mvm *mvm, void *sta, bool internal, u32 flags)
2040{
2041 struct iwl_mvm_int_sta *int_sta = sta;
2042 struct iwl_mvm_sta *mvm_sta = sta;
2043
2044 BUILD_BUG_ON(offsetof(struct iwl_mvm_int_sta, sta_id) !=
2045 offsetof(struct iwl_mvm_sta, sta_id));
2046
2047 if (iwl_mvm_has_new_tx_api(mvm))
2048 return iwl_mvm_flush_sta_tids(mvm, mvm_sta->sta_id,
2049 0xffff, flags);
2050
2051 if (internal)
2052 return iwl_mvm_flush_tx_path(mvm, int_sta->tfd_queue_msk,
2053 flags);
2054
2055 return iwl_mvm_flush_tx_path(mvm, mvm_sta->tfd_queue_msk, flags);
2056}
2057