1 // SPDX-License-Identifier: GPL-2.0-only
4  * Copyright 2013-2014  Intel Mobile Communications GmbH
35 	switch (skb->priority) {  in wme_downgrade_ac()
36 	case 6:  in wme_downgrade_ac()
37 	case 7:  in wme_downgrade_ac()
38 		skb->priority = 5; /* VO -> VI */  in wme_downgrade_ac()
40 	case 4:  in wme_downgrade_ac()
41 	case 5:  in wme_downgrade_ac()
42 		skb->priority = 3; /* VI -> BE */  in wme_downgrade_ac()
44 	case 0:  in wme_downgrade_ac()
45 	case 3:  in wme_downgrade_ac()
46 		skb->priority = 2; /* BE -> BK */  in wme_downgrade_ac()
49 		return -1;  in wme_downgrade_ac()
54  * ieee80211_fix_reserved_tid - return the TID to use if this one is reserved
55  * @tid: the assumed-reserved TID
57  * Returns: the alternative TID to use, or 0 on error
62 	case 0:  in ieee80211_fix_reserved_tid()
64 	case 1:  in ieee80211_fix_reserved_tid()
66 	case 2:  in ieee80211_fix_reserved_tid()
68 	case 3:  in ieee80211_fix_reserved_tid()
70 	case 4:  in ieee80211_fix_reserved_tid()
72 	case 5:  in ieee80211_fix_reserved_tid()
74 	case 6:  in ieee80211_fix_reserved_tid()
76 	case 7:  in ieee80211_fix_reserved_tid()
86 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;  in ieee80211_downgrade_queue()
88 	/* in case we are a client verify acm is not set for this ac */  in ieee80211_downgrade_queue()
89 	while (sdata->wmm_acm & BIT(skb->priority)) {  in ieee80211_downgrade_queue()
90 		int ac = ieee802_1d_to_ac[skb->priority];  in ieee80211_downgrade_queue()
92 		if (ifmgd->tx_tspec[ac].admitted_time &&  in ieee80211_downgrade_queue()
93 		    skb->priority == ifmgd->tx_tspec[ac].up)  in ieee80211_downgrade_queue()
108 	if (sta && sta->reserved_tid == skb->priority)  in ieee80211_downgrade_queue()
109 		skb->priority = ieee80211_fix_reserved_tid(skb->priority);  in ieee80211_downgrade_queue()
111 	/* look up which queue to use for frames with this 1d tag */  in ieee80211_downgrade_queue()
112 	return ieee802_1d_to_ac[skb->priority];  in ieee80211_downgrade_queue()
115 /* Indicate which queue to use for this fully formed 802.11 frame */
120 	struct ieee80211_local *local = sdata->local;  in ieee80211_select_queue_80211()
123 	if (local->hw.queues < IEEE80211_NUM_ACS)  in ieee80211_select_queue_80211()
126 	if (!ieee80211_is_data(hdr->frame_control)) {  in ieee80211_select_queue_80211()
127 		skb->priority = 7;  in ieee80211_select_queue_80211()
128 		return ieee802_1d_to_ac[skb->priority];  in ieee80211_select_queue_80211()
130 	if (!ieee80211_is_data_qos(hdr->frame_control)) {  in ieee80211_select_queue_80211()
131 		skb->priority = 0;  in ieee80211_select_queue_80211()
132 		return ieee802_1d_to_ac[skb->priority];  in ieee80211_select_queue_80211()
136 	skb->priority = *p & IEEE80211_QOS_CTL_TAG1D_MASK;  in ieee80211_select_queue_80211()
148 	if (sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||  in __ieee80211_select_queue()
149 	    sdata->vif.type == NL80211_IFTYPE_OCB)  in __ieee80211_select_queue()
152 		qos = sta->sta.wme;  in __ieee80211_select_queue()
157 		skb->priority = 0; /* required for correct WPA/11i MIC */  in __ieee80211_select_queue()
161 	if (skb->protocol == sdata->control_port_protocol) {  in __ieee80211_select_queue()
162 		skb->priority = 7;  in __ieee80211_select_queue()
166 	/* use the data classifier to determine what 802.1d tag the  in __ieee80211_select_queue()
168 	qos_map = rcu_dereference(sdata->qos_map);  in __ieee80211_select_queue()
169 	skb->priority = cfg80211_classify8021d(skb, qos_map ?  in __ieee80211_select_queue()
170 					       &qos_map->qos_map : NULL);  in __ieee80211_select_queue()
177 /* Indicate which queue to use. */
181 	struct ieee80211_local *local = sdata->local;  in ieee80211_select_queue()
187 	if (local->ops->wake_tx_queue)  in ieee80211_select_queue()
190 	if (local->hw.queues < IEEE80211_NUM_ACS || skb->len < 6) {  in ieee80211_select_queue()
191 		skb->priority = 0; /* required for correct WPA/11i MIC */  in ieee80211_select_queue()
196 	switch (sdata->vif.type) {  in ieee80211_select_queue()
197 	case NL80211_IFTYPE_AP_VLAN:  in ieee80211_select_queue()
198 		sta = rcu_dereference(sdata->u.vlan.sta);  in ieee80211_select_queue()
202 	case NL80211_IFTYPE_AP:  in ieee80211_select_queue()
203 		ra = skb->data;  in ieee80211_select_queue()
205 	case NL80211_IFTYPE_WDS:  in ieee80211_select_queue()
206 		ra = sdata->u.wds.remote_addr;  in ieee80211_select_queue()
208 	case NL80211_IFTYPE_STATION:  in ieee80211_select_queue()
210 		sta = sta_info_get(sdata, skb->data);  in ieee80211_select_queue()
214 		ra = sdata->u.mgd.bssid;  in ieee80211_select_queue()
216 	case NL80211_IFTYPE_ADHOC:  in ieee80211_select_queue()
217 		ra = skb->data;  in ieee80211_select_queue()
233  * ieee80211_set_qos_hdr - Fill in the QoS header if there is one.
241 	struct ieee80211_hdr *hdr = (void *)skb->data;  in ieee80211_set_qos_hdr()
243 	u8 tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;  in ieee80211_set_qos_hdr()
247 	if (!ieee80211_is_data_qos(hdr->frame_control))  in ieee80211_set_qos_hdr()
261 	if (is_multicast_ether_addr(hdr->addr1) ||  in ieee80211_set_qos_hdr()
262 	    sdata->noack_map & BIT(tid)) {  in ieee80211_set_qos_hdr()
264 		info->flags |= IEEE80211_TX_CTL_NO_ACK;  in ieee80211_set_qos_hdr()
272 	if (ieee80211_vif_is_mesh(&sdata->vif)) {  in ieee80211_set_qos_hdr()
278 		if (!ieee80211_is_qos_nullfunc(hdr->frame_control))  in ieee80211_set_qos_hdr()