51 static __le16 ieee80211_duration(struct ieee80211_tx_data *tx,  in ieee80211_duration()  argument
57 	struct ieee80211_local *local = tx->local;  in ieee80211_duration()
65 	if (tx->rate.flags & (IEEE80211_TX_RC_MCS | IEEE80211_TX_RC_VHT_MCS))  in ieee80211_duration()
69 	chanctx_conf = rcu_dereference(tx->sdata->vif.chanctx_conf);  in ieee80211_duration()
77 	if (WARN_ON_ONCE(tx->rate.idx < 0))  in ieee80211_duration()
81 	txrate = &sband->bitrates[tx->rate.idx];  in ieee80211_duration()
150 		if (tx->sdata->vif.bss_conf.basic_rates & BIT(i))  in ieee80211_duration()
156 			if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)  in ieee80211_duration()
191 				tx->sdata->vif.bss_conf.use_short_preamble,  in ieee80211_duration()
201 				tx->sdata->vif.bss_conf.use_short_preamble,  in ieee80211_duration()
208 /* tx handlers */
210 ieee80211_tx_h_dynamic_ps(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_dynamic_ps()  argument
212 	struct ieee80211_local *local = tx->local;  in ieee80211_tx_h_dynamic_ps()
214 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);  in ieee80211_tx_h_dynamic_ps()
240 	if (tx->sdata->vif.type != NL80211_IFTYPE_STATION)  in ieee80211_tx_h_dynamic_ps()
246 	ifmgd = &tx->sdata->u.mgd;  in ieee80211_tx_h_dynamic_ps()
263 	    skb_get_queue_mapping(tx->skb) == IEEE80211_AC_VO)  in ieee80211_tx_h_dynamic_ps()
287 ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_check_assoc()  argument
290 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;  in ieee80211_tx_h_check_assoc()
291 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);  in ieee80211_tx_h_check_assoc()
297 	if (unlikely(test_bit(SCAN_SW_SCANNING, &tx->local->scanning)) &&  in ieee80211_tx_h_check_assoc()
298 	    test_bit(SDATA_STATE_OFFCHANNEL, &tx->sdata->state) &&  in ieee80211_tx_h_check_assoc()
314 	if (tx->sdata->vif.type == NL80211_IFTYPE_OCB)  in ieee80211_tx_h_check_assoc()
317 	if (tx->sdata->vif.type == NL80211_IFTYPE_WDS)  in ieee80211_tx_h_check_assoc()
320 	if (tx->flags & IEEE80211_TX_PS_BUFFERED)  in ieee80211_tx_h_check_assoc()
323 	if (tx->sta)  in ieee80211_tx_h_check_assoc()
324 		assoc = test_sta_flag(tx->sta, WLAN_STA_ASSOC);  in ieee80211_tx_h_check_assoc()
326 	if (likely(tx->flags & IEEE80211_TX_UNICAST)) {  in ieee80211_tx_h_check_assoc()
330 			sdata_info(tx->sdata,  in ieee80211_tx_h_check_assoc()
334 			I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc);  in ieee80211_tx_h_check_assoc()
338 			    ieee80211_vif_get_num_mcast_if(tx->sdata) == 0)) {  in ieee80211_tx_h_check_assoc()
401 ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_multicast_ps_buf()  argument
403 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);  in ieee80211_tx_h_multicast_ps_buf()
404 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;  in ieee80211_tx_h_multicast_ps_buf()
416 	if (tx->sdata->vif.type == NL80211_IFTYPE_AP ||  in ieee80211_tx_h_multicast_ps_buf()
417 	    tx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {  in ieee80211_tx_h_multicast_ps_buf()
418 		if (!tx->sdata->bss)  in ieee80211_tx_h_multicast_ps_buf()
421 		ps = &tx->sdata->bss->ps;  in ieee80211_tx_h_multicast_ps_buf()
422 	} else if (ieee80211_vif_is_mesh(&tx->sdata->vif)) {  in ieee80211_tx_h_multicast_ps_buf()
423 		ps = &tx->sdata->u.mesh.ps;  in ieee80211_tx_h_multicast_ps_buf()
436 	if (ieee80211_hw_check(&tx->local->hw, QUEUE_CONTROL))  in ieee80211_tx_h_multicast_ps_buf()
437 		info->hw_queue = tx->sdata->vif.cab_queue;  in ieee80211_tx_h_multicast_ps_buf()
446 	if (!ieee80211_hw_check(&tx->local->hw, HOST_BROADCAST_PS_BUFFERING))  in ieee80211_tx_h_multicast_ps_buf()
450 	if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)  in ieee80211_tx_h_multicast_ps_buf()
451 		purge_old_ps_buffers(tx->local);  in ieee80211_tx_h_multicast_ps_buf()
454 		ps_dbg(tx->sdata,  in ieee80211_tx_h_multicast_ps_buf()
455 		       "BC TX buffer full - dropping the oldest frame\n");  in ieee80211_tx_h_multicast_ps_buf()
456 		ieee80211_free_txskb(&tx->local->hw, skb_dequeue(&ps->bc_buf));  in ieee80211_tx_h_multicast_ps_buf()
458 		tx->local->total_ps_buffered++;  in ieee80211_tx_h_multicast_ps_buf()
460 	skb_queue_tail(&ps->bc_buf, tx->skb);  in ieee80211_tx_h_multicast_ps_buf()
481 ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_unicast_ps_buf()  argument
483 	struct sta_info *sta = tx->sta;  in ieee80211_tx_h_unicast_ps_buf()
484 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);  in ieee80211_tx_h_unicast_ps_buf()
485 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;  in ieee80211_tx_h_unicast_ps_buf()
486 	struct ieee80211_local *local = tx->local;  in ieee80211_tx_h_unicast_ps_buf()
495 		int ac = skb_get_queue_mapping(tx->skb);  in ieee80211_tx_h_unicast_ps_buf()
505 		if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)  in ieee80211_tx_h_unicast_ps_buf()
506 			purge_old_ps_buffers(tx->local);  in ieee80211_tx_h_unicast_ps_buf()
513 		 * ahead and Tx the packet.  in ieee80211_tx_h_unicast_ps_buf()
524 			ps_dbg(tx->sdata,  in ieee80211_tx_h_unicast_ps_buf()
525 			       "STA %pM TX buffer for AC %d full - dropping oldest frame\n",  in ieee80211_tx_h_unicast_ps_buf()
529 			tx->local->total_ps_buffered++;  in ieee80211_tx_h_unicast_ps_buf()
532 		info->control.vif = &tx->sdata->vif;  in ieee80211_tx_h_unicast_ps_buf()
535 		skb_queue_tail(&sta->ps_tx_buf[ac], tx->skb);  in ieee80211_tx_h_unicast_ps_buf()
551 		ps_dbg(tx->sdata,  in ieee80211_tx_h_unicast_ps_buf()
560 ieee80211_tx_h_ps_buf(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_ps_buf()  argument
562 	if (unlikely(tx->flags & IEEE80211_TX_PS_BUFFERED))  in ieee80211_tx_h_ps_buf()
565 	if (tx->flags & IEEE80211_TX_UNICAST)  in ieee80211_tx_h_ps_buf()
566 		return ieee80211_tx_h_unicast_ps_buf(tx);  in ieee80211_tx_h_ps_buf()
568 		return ieee80211_tx_h_multicast_ps_buf(tx);  in ieee80211_tx_h_ps_buf()
572 ieee80211_tx_h_check_control_port_protocol(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_check_control_port_protocol()  argument
574 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);  in ieee80211_tx_h_check_control_port_protocol()
576 	if (unlikely(tx->sdata->control_port_protocol == tx->skb->protocol)) {  in ieee80211_tx_h_check_control_port_protocol()
577 		if (tx->sdata->control_port_no_encrypt)  in ieee80211_tx_h_check_control_port_protocol()
587 ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_select_key()  argument
590 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);  in ieee80211_tx_h_select_key()
591 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;  in ieee80211_tx_h_select_key()
594 		tx->key = NULL;  in ieee80211_tx_h_select_key()
595 	else if (tx->sta &&  in ieee80211_tx_h_select_key()
596 		 (key = rcu_dereference(tx->sta->ptk[tx->sta->ptk_idx])))  in ieee80211_tx_h_select_key()
597 		tx->key = key;  in ieee80211_tx_h_select_key()
598 	else if (ieee80211_is_group_privacy_action(tx->skb) &&  in ieee80211_tx_h_select_key()
599 		(key = rcu_dereference(tx->sdata->default_multicast_key)))  in ieee80211_tx_h_select_key()
600 		tx->key = key;  in ieee80211_tx_h_select_key()
603 		 ieee80211_is_robust_mgmt_frame(tx->skb) &&  in ieee80211_tx_h_select_key()
604 		 (key = rcu_dereference(tx->sdata->default_mgmt_key)))  in ieee80211_tx_h_select_key()
605 		tx->key = key;  in ieee80211_tx_h_select_key()
607 		 (key = rcu_dereference(tx->sdata->default_multicast_key)))  in ieee80211_tx_h_select_key()
608 		tx->key = key;  in ieee80211_tx_h_select_key()
610 		 (key = rcu_dereference(tx->sdata->default_unicast_key)))  in ieee80211_tx_h_select_key()
611 		tx->key = key;  in ieee80211_tx_h_select_key()
613 		tx->key = NULL;  in ieee80211_tx_h_select_key()
615 	if (tx->key) {  in ieee80211_tx_h_select_key()
620 		switch (tx->key->conf.cipher) {  in ieee80211_tx_h_select_key()
625 				tx->key = NULL;  in ieee80211_tx_h_select_key()
632 			    !ieee80211_use_mfp(hdr->frame_control, tx->sta,  in ieee80211_tx_h_select_key()
633 					       tx->skb) &&  in ieee80211_tx_h_select_key()
634 			    !ieee80211_is_group_privacy_action(tx->skb))  in ieee80211_tx_h_select_key()
635 				tx->key = NULL;  in ieee80211_tx_h_select_key()
637 				skip_hw = (tx->key->conf.flags &  in ieee80211_tx_h_select_key()
646 				tx->key = NULL;  in ieee80211_tx_h_select_key()
650 		if (unlikely(tx->key && tx->key->flags & KEY_FLAG_TAINTED &&  in ieee80211_tx_h_select_key()
654 		if (!skip_hw && tx->key &&  in ieee80211_tx_h_select_key()
655 		    tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)  in ieee80211_tx_h_select_key()
656 			info->control.hw_key = &tx->key->conf;  in ieee80211_tx_h_select_key()
663 ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_rate_ctrl()  argument
665 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);  in ieee80211_tx_h_rate_ctrl()
666 	struct ieee80211_hdr *hdr = (void *)tx->skb->data;  in ieee80211_tx_h_rate_ctrl()
675 	sband = tx->local->hw.wiphy->bands[info->band];  in ieee80211_tx_h_rate_ctrl()
677 	len = min_t(u32, tx->skb->len + FCS_LEN,  in ieee80211_tx_h_rate_ctrl()
678 			 tx->local->hw.wiphy->frag_threshold);  in ieee80211_tx_h_rate_ctrl()
680 	/* set up the tx rate control struct we give the RC algo */  in ieee80211_tx_h_rate_ctrl()
681 	txrc.hw = &tx->local->hw;  in ieee80211_tx_h_rate_ctrl()
683 	txrc.bss_conf = &tx->sdata->vif.bss_conf;  in ieee80211_tx_h_rate_ctrl()
684 	txrc.skb = tx->skb;  in ieee80211_tx_h_rate_ctrl()
686 	txrc.rate_idx_mask = tx->sdata->rc_rateidx_mask[info->band];  in ieee80211_tx_h_rate_ctrl()
688 	if (tx->sdata->rc_has_mcs_mask[info->band])  in ieee80211_tx_h_rate_ctrl()
690 			tx->sdata->rc_rateidx_mcs_mask[info->band];  in ieee80211_tx_h_rate_ctrl()
692 	txrc.bss = (tx->sdata->vif.type == NL80211_IFTYPE_AP ||  in ieee80211_tx_h_rate_ctrl()
693 		    tx->sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||  in ieee80211_tx_h_rate_ctrl()
694 		    tx->sdata->vif.type == NL80211_IFTYPE_ADHOC ||  in ieee80211_tx_h_rate_ctrl()
695 		    tx->sdata->vif.type == NL80211_IFTYPE_OCB);  in ieee80211_tx_h_rate_ctrl()
698 	if (len > tx->local->hw.wiphy->rts_threshold) {  in ieee80211_tx_h_rate_ctrl()
703 	info->control.use_cts_prot = tx->sdata->vif.bss_conf.use_cts_prot;  in ieee80211_tx_h_rate_ctrl()
711 	if (tx->sdata->vif.bss_conf.use_short_preamble &&  in ieee80211_tx_h_rate_ctrl()
713 	     (tx->sta && test_sta_flag(tx->sta, WLAN_STA_SHORT_PREAMBLE))))  in ieee80211_tx_h_rate_ctrl()
722 	if (tx->sta)  in ieee80211_tx_h_rate_ctrl()
723 		assoc = test_sta_flag(tx->sta, WLAN_STA_ASSOC);  in ieee80211_tx_h_rate_ctrl()
729 	if (WARN(test_bit(SCAN_SW_SCANNING, &tx->local->scanning) && assoc &&  in ieee80211_tx_h_rate_ctrl()
730 		 !rate_usable_index_exists(sband, &tx->sta->sta),  in ieee80211_tx_h_rate_ctrl()
734 		 tx->sdata->name, hdr->addr1,  in ieee80211_tx_h_rate_ctrl()
742 	rate_control_get_rate(tx->sdata, tx->sta, &txrc);  in ieee80211_tx_h_rate_ctrl()
744 	if (tx->sta && !info->control.skip_table)  in ieee80211_tx_h_rate_ctrl()
745 		ratetbl = rcu_dereference(tx->sta->sta.rates);  in ieee80211_tx_h_rate_ctrl()
758 			tx->rate = rate;  in ieee80211_tx_h_rate_ctrl()
763 		tx->rate = info->control.rates[0];  in ieee80211_tx_h_rate_ctrl()
767 		txrc.reported_rate = tx->rate;  in ieee80211_tx_h_rate_ctrl()
768 		if (tx->sta && ieee80211_is_data(hdr->frame_control))  in ieee80211_tx_h_rate_ctrl()
769 			tx->sta->tx_stats.last_rate = txrc.reported_rate;  in ieee80211_tx_h_rate_ctrl()
770 	} else if (tx->sta)  in ieee80211_tx_h_rate_ctrl()
771 		tx->sta->tx_stats.last_rate = txrc.reported_rate;  in ieee80211_tx_h_rate_ctrl()
798 ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_sequence()  argument
800 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);  in ieee80211_tx_h_sequence()
801 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;  in ieee80211_tx_h_sequence()
829 		if (tx->flags & IEEE80211_TX_NO_SEQNO)  in ieee80211_tx_h_sequence()
834 		hdr->seq_ctrl = cpu_to_le16(tx->sdata->sequence_number);  in ieee80211_tx_h_sequence()
835 		tx->sdata->sequence_number += 0x10;  in ieee80211_tx_h_sequence()
836 		if (tx->sta)  in ieee80211_tx_h_sequence()
837 			tx->sta->tx_stats.msdu[IEEE80211_NUM_TIDS]++;  in ieee80211_tx_h_sequence()
846 	if (!tx->sta)  in ieee80211_tx_h_sequence()
851 	tx->sta->tx_stats.msdu[tid]++;  in ieee80211_tx_h_sequence()
853 	hdr->seq_ctrl = ieee80211_tx_next_seq(tx->sta, tid);  in ieee80211_tx_h_sequence()
858 static int ieee80211_fragment(struct ieee80211_tx_data *tx,  in ieee80211_fragment()  argument
862 	struct ieee80211_local *local = tx->local;  in ieee80211_fragment()
882 				    tx->sdata->encrypt_headroom +  in ieee80211_fragment()
887 		__skb_queue_tail(&tx->skbs, tmp);  in ieee80211_fragment()
890 			    local->tx_headroom + tx->sdata->encrypt_headroom);  in ieee80211_fragment()
919 ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_fragment()  argument
921 	struct sk_buff *skb = tx->skb;  in ieee80211_tx_h_fragment()
924 	int frag_threshold = tx->local->hw.wiphy->frag_threshold;  in ieee80211_tx_h_fragment()
928 	/* no matter what happens, tx->skb moves to tx->skbs */  in ieee80211_tx_h_fragment()
929 	__skb_queue_tail(&tx->skbs, skb);  in ieee80211_tx_h_fragment()
930 	tx->skb = NULL;  in ieee80211_tx_h_fragment()
935 	if (ieee80211_hw_check(&tx->local->hw, SUPPORTS_TX_FRAG))  in ieee80211_tx_h_fragment()
941 	 * caution taken here as fragmented ampdu may cause Tx stop.  in ieee80211_tx_h_fragment()
960 	if (ieee80211_fragment(tx, skb, hdrlen, frag_threshold))  in ieee80211_tx_h_fragment()
966 	skb_queue_walk(&tx->skbs, skb) {  in ieee80211_tx_h_fragment()
972 		if (!skb_queue_is_last(&tx->skbs, skb)) {  in ieee80211_tx_h_fragment()
994 ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_stats()  argument
999 	if (!tx->sta)  in ieee80211_tx_h_stats()
1002 	skb_queue_walk(&tx->skbs, skb) {  in ieee80211_tx_h_stats()
1004 		tx->sta->tx_stats.bytes[ac] += skb->len;  in ieee80211_tx_h_stats()
1007 		tx->sta->tx_stats.packets[ac]++;  in ieee80211_tx_h_stats()
1013 ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_encrypt()  argument
1015 	if (!tx->key)  in ieee80211_tx_h_encrypt()
1018 	switch (tx->key->conf.cipher) {  in ieee80211_tx_h_encrypt()
1021 		return ieee80211_crypto_wep_encrypt(tx);  in ieee80211_tx_h_encrypt()
1023 		return ieee80211_crypto_tkip_encrypt(tx);  in ieee80211_tx_h_encrypt()
1026 			tx, IEEE80211_CCMP_MIC_LEN);  in ieee80211_tx_h_encrypt()
1029 			tx, IEEE80211_CCMP_256_MIC_LEN);  in ieee80211_tx_h_encrypt()
1031 		return ieee80211_crypto_aes_cmac_encrypt(tx);  in ieee80211_tx_h_encrypt()
1033 		return ieee80211_crypto_aes_cmac_256_encrypt(tx);  in ieee80211_tx_h_encrypt()
1036 		return ieee80211_crypto_aes_gmac_encrypt(tx);  in ieee80211_tx_h_encrypt()
1039 		return ieee80211_crypto_gcmp_encrypt(tx);  in ieee80211_tx_h_encrypt()
1041 		return ieee80211_crypto_hw_encrypt(tx);  in ieee80211_tx_h_encrypt()
1048 ieee80211_tx_h_calculate_duration(struct ieee80211_tx_data *tx)  in ieee80211_tx_h_calculate_duration()  argument
1055 	skb_queue_walk(&tx->skbs, skb) {  in ieee80211_tx_h_calculate_duration()
1059 		if (!skb_queue_is_last(&tx->skbs, skb)) {  in ieee80211_tx_h_calculate_duration()
1060 			struct sk_buff *next = skb_queue_next(&tx->skbs, skb);  in ieee80211_tx_h_calculate_duration()
1067 			ieee80211_duration(tx, skb, group_addr, next_len);  in ieee80211_tx_h_calculate_duration()
1075 static bool ieee80211_tx_prep_agg(struct ieee80211_tx_data *tx,  in ieee80211_tx_prep_agg()  argument
1093 	} else if (!tx->sta->sta.txq[tid]) {  in ieee80211_tx_prep_agg()
1094 		spin_lock(&tx->sta->lock);  in ieee80211_tx_prep_agg()
1113 		tid_tx = rcu_dereference_protected_tid_tx(tx->sta, tid);  in ieee80211_tx_prep_agg()
1123 				clear_sta_flag(tx->sta, WLAN_STA_SP);  in ieee80211_tx_prep_agg()
1124 				ps_dbg(tx->sta->sdata,  in ieee80211_tx_prep_agg()
1126 				       tx->sta->sta.addr, tx->sta->sta.aid);  in ieee80211_tx_prep_agg()
1128 			info->control.vif = &tx->sdata->vif;  in ieee80211_tx_prep_agg()
1135 		spin_unlock(&tx->sta->lock);  in ieee80211_tx_prep_agg()
1138 			ieee80211_free_txskb(&tx->local->hw, purge_skb);  in ieee80211_tx_prep_agg()
1149  * initialises @tx
1155 		     struct ieee80211_tx_data *tx,  in ieee80211_tx_prepare()  argument
1163 	memset(tx, 0, sizeof(*tx));  in ieee80211_tx_prepare()
1164 	tx->skb = skb;  in ieee80211_tx_prepare()
1165 	tx->local = local;  in ieee80211_tx_prepare()
1166 	tx->sdata = sdata;  in ieee80211_tx_prepare()
1167 	__skb_queue_head_init(&tx->skbs);  in ieee80211_tx_prepare()
1180 			tx->sta = sta;  in ieee80211_tx_prepare()
1183 			tx->sta = rcu_dereference(sdata->u.vlan.sta);  in ieee80211_tx_prepare()
1184 			if (!tx->sta && sdata->wdev.use_4addr)  in ieee80211_tx_prepare()
1188 			   tx->sdata->control_port_protocol == tx->skb->protocol) {  in ieee80211_tx_prepare()
1189 			tx->sta = sta_info_get_bss(sdata, hdr->addr1);  in ieee80211_tx_prepare()
1191 		if (!tx->sta && !is_multicast_ether_addr(hdr->addr1))  in ieee80211_tx_prepare()
1192 			tx->sta = sta_info_get(sdata, hdr->addr1);  in ieee80211_tx_prepare()
1195 	if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) &&  in ieee80211_tx_prepare()
1203 		tid_tx = rcu_dereference(tx->sta->ampdu_mlme.tid_tx[tid]);  in ieee80211_tx_prepare()
1207 			queued = ieee80211_tx_prep_agg(tx, skb, info,  in ieee80211_tx_prepare()
1216 		tx->flags &= ~IEEE80211_TX_UNICAST;  in ieee80211_tx_prepare()
1219 		tx->flags |= IEEE80211_TX_UNICAST;  in ieee80211_tx_prepare()
1222 		if (!(tx->flags & IEEE80211_TX_UNICAST) ||  in ieee80211_tx_prepare()
1228 	if (!tx->sta)  in ieee80211_tx_prepare()
1230 	else if (test_and_clear_sta_flag(tx->sta, WLAN_STA_CLEAR_PS_FILT)) {  in ieee80211_tx_prepare()
1232 		ieee80211_check_fast_xmit(tx->sta);  in ieee80211_tx_prepare()
1664 				 * later transmission from the tx-pending  in ieee80211_tx_frags()
1758  * Invoke TX handlers, return 0 on success and non-zero if the
1765 static int invoke_tx_handlers_early(struct ieee80211_tx_data *tx)  in invoke_tx_handlers_early()  argument
1771 		res = txh(tx);		\  in invoke_tx_handlers_early()
1781 	if (!ieee80211_hw_check(&tx->local->hw, HAS_RATE_CONTROL))  in invoke_tx_handlers_early()
1786 		I802_DEBUG_INC(tx->local->tx_handlers_drop);  in invoke_tx_handlers_early()
1787 		if (tx->skb)  in invoke_tx_handlers_early()
1788 			ieee80211_free_txskb(&tx->local->hw, tx->skb);  in invoke_tx_handlers_early()
1790 			ieee80211_purge_tx_queue(&tx->local->hw, &tx->skbs);  in invoke_tx_handlers_early()
1793 		I802_DEBUG_INC(tx->local->tx_handlers_queued);  in invoke_tx_handlers_early()
1804 static int invoke_tx_handlers_late(struct ieee80211_tx_data *tx)  in invoke_tx_handlers_late()  argument
1806 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);  in invoke_tx_handlers_late()
1810 		__skb_queue_tail(&tx->skbs, tx->skb);  in invoke_tx_handlers_late()
1811 		tx->skb = NULL;  in invoke_tx_handlers_late()
1818 	/* handlers after fragment must be aware of tx info fragmentation! */  in invoke_tx_handlers_late()
1821 	if (!ieee80211_hw_check(&tx->local->hw, HAS_RATE_CONTROL))  in invoke_tx_handlers_late()
1827 		I802_DEBUG_INC(tx->local->tx_handlers_drop);  in invoke_tx_handlers_late()
1828 		if (tx->skb)  in invoke_tx_handlers_late()
1829 			ieee80211_free_txskb(&tx->local->hw, tx->skb);  in invoke_tx_handlers_late()
1831 			ieee80211_purge_tx_queue(&tx->local->hw, &tx->skbs);  in invoke_tx_handlers_late()
1834 		I802_DEBUG_INC(tx->local->tx_handlers_queued);  in invoke_tx_handlers_late()
1841 static int invoke_tx_handlers(struct ieee80211_tx_data *tx)  in invoke_tx_handlers()  argument
1843 	int r = invoke_tx_handlers_early(tx);  in invoke_tx_handlers()
1847 	return invoke_tx_handlers_late(tx);  in invoke_tx_handlers()
1856 	struct ieee80211_tx_data tx;  in ieee80211_tx_prepare_skb()  local
1859 	if (ieee80211_tx_prepare(sdata, &tx, NULL, skb) == TX_DROP)  in ieee80211_tx_prepare_skb()
1866 	if (invoke_tx_handlers(&tx))  in ieee80211_tx_prepare_skb()
1870 		if (tx.sta)  in ieee80211_tx_prepare_skb()
1871 			*sta = &tx.sta->sta;  in ieee80211_tx_prepare_skb()
1877 	skb2 = __skb_dequeue(&tx.skbs);  in ieee80211_tx_prepare_skb()
1878 	if (WARN_ON(skb2 != skb || !skb_queue_empty(&tx.skbs))) {  in ieee80211_tx_prepare_skb()
1880 		ieee80211_purge_tx_queue(hw, &tx.skbs);  in ieee80211_tx_prepare_skb()
1896 	struct ieee80211_tx_data tx;  in ieee80211_tx()  local
1907 	/* initialises tx */  in ieee80211_tx()
1909 	res_prepare = ieee80211_tx_prepare(sdata, &tx, sta, skb);  in ieee80211_tx()
1911 	tx.flags |= txdata_flags;  in ieee80211_tx()
1926 	if (invoke_tx_handlers_early(&tx))  in ieee80211_tx()
1929 	if (ieee80211_queue_skb(local, sdata, tx.sta, tx.skb))  in ieee80211_tx()
1932 	if (!invoke_tx_handlers_late(&tx))  in ieee80211_tx()
1933 		result = __ieee80211_tx(local, &tx.skbs, led_len,  in ieee80211_tx()
1934 					tx.sta, txpending);  in ieee80211_tx()
1972 			    "failed to reallocate TX buffer\n");  in ieee80211_skb_resize()
2317 	 * NO TX unless the channel is explicitly allowed in which case  in ieee80211_monitor_start_xmit()
2321 	 * Since AP mode uses monitor interfaces to inject/TX management  in ieee80211_monitor_start_xmit()
2438  * Note that this function also takes care of the TX status request and
2858  * maintained if any of the TX path checks change.
2881 	 * key and the fast-tx assignment are done atomically, so the CPU that  in ieee80211_check_fast_xmit()
3138 				    "failed to reallocate TX buffer\n");  in ieee80211_amsdu_realloc_pad()
3419 	struct ieee80211_tx_data tx;  in ieee80211_xmit_fast()  local
3432 	/* don't handle TX status request here either */  in ieee80211_xmit_fast()
3500 	__skb_queue_head_init(&tx.skbs);  in ieee80211_xmit_fast()
3502 	tx.flags = IEEE80211_TX_UNICAST;  in ieee80211_xmit_fast()
3503 	tx.local = local;  in ieee80211_xmit_fast()
3504 	tx.sdata = sdata;  in ieee80211_xmit_fast()
3505 	tx.sta = sta;  in ieee80211_xmit_fast()
3506 	tx.key = fast_tx->key;  in ieee80211_xmit_fast()
3509 		tx.skb = skb;  in ieee80211_xmit_fast()
3510 		r = ieee80211_tx_h_rate_ctrl(&tx);  in ieee80211_xmit_fast()
3511 		skb = tx.skb;  in ieee80211_xmit_fast()
3512 		tx.skb = NULL;  in ieee80211_xmit_fast()
3531 	__skb_queue_tail(&tx.skbs, skb);  in ieee80211_xmit_fast()
3532 	ieee80211_tx_frags(local, &sdata->vif, &sta->sta, &tx.skbs, false);  in ieee80211_xmit_fast()
3546 	struct ieee80211_tx_data tx;  in ieee80211_tx_dequeue()  local
3578 	memset(&tx, 0, sizeof(tx));  in ieee80211_tx_dequeue()
3579 	__skb_queue_head_init(&tx.skbs);  in ieee80211_tx_dequeue()
3580 	tx.local = local;  in ieee80211_tx_dequeue()
3581 	tx.skb = skb;  in ieee80211_tx_dequeue()
3582 	tx.sdata = vif_to_sdata(info->control.vif);  in ieee80211_tx_dequeue()
3585 		tx.sta = container_of(txq->sta, struct sta_info, sta);  in ieee80211_tx_dequeue()
3591 	r = ieee80211_tx_h_select_key(&tx);  in ieee80211_tx_dequeue()
3607 		if (tx.key &&  in ieee80211_tx_dequeue()
3608 		    (tx.key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))  in ieee80211_tx_dequeue()
3612 					   tx.key, skb);  in ieee80211_tx_dequeue()
3614 		if (invoke_tx_handlers_late(&tx))  in ieee80211_tx_dequeue()
3617 		skb = __skb_dequeue(&tx.skbs);  in ieee80211_tx_dequeue()
3619 		if (!skb_queue_empty(&tx.skbs)) {  in ieee80211_tx_dequeue()
3621 			skb_queue_splice_tail(&tx.skbs, &txqi->frags);  in ieee80211_tx_dequeue()
3634 	switch (tx.sdata->vif.type) {  in ieee80211_tx_dequeue()
3636 		if (tx.sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE) {  in ieee80211_tx_dequeue()
3637 			vif = &tx.sdata->vif;  in ieee80211_tx_dequeue()
3640 		tx.sdata = rcu_dereference(local->monitor_sdata);  in ieee80211_tx_dequeue()
3641 		if (tx.sdata) {  in ieee80211_tx_dequeue()
3642 			vif = &tx.sdata->vif;  in ieee80211_tx_dequeue()
3653 		tx.sdata = container_of(tx.sdata->bss,  in ieee80211_tx_dequeue()
3657 		vif = &tx.sdata->vif;  in ieee80211_tx_dequeue()
4037 	struct ieee80211_tx_data tx = {  in ieee80211_build_data_template()  local
4056 	tx.sta = sta_info_get(sdata, hdr->addr1);  in ieee80211_build_data_template()
4057 	tx.skb = skb;  in ieee80211_build_data_template()
4059 	if (ieee80211_tx_h_select_key(&tx) != TX_CONTINUE) {  in ieee80211_build_data_template()
4865 	struct ieee80211_tx_data tx;  in ieee80211_get_buffered_bc()  local
4914 		if (!ieee80211_tx_prepare(sdata, &tx, NULL, skb))  in ieee80211_get_buffered_bc()
4921 	tx.flags |= IEEE80211_TX_PS_BUFFERED;  in ieee80211_get_buffered_bc()
4924 	if (invoke_tx_handlers(&tx))  in ieee80211_get_buffered_bc()
5039 	 * requirements are that we do not come into tx with bhs on.  in __ieee80211_tx_skb_tid_band()