1 // SPDX-License-Identifier: GPL-2.0-only
4  * Copyright 2013-2014  Intel Mobile Communications GmbH
36 	switch (skb->priority) {  in wme_downgrade_ac()
37 	case 6:  in wme_downgrade_ac()
38 	case 7:  in wme_downgrade_ac()
39 		skb->priority = 5; /* VO -> VI */  in wme_downgrade_ac()
41 	case 4:  in wme_downgrade_ac()
42 	case 5:  in wme_downgrade_ac()
43 		skb->priority = 3; /* VI -> BE */  in wme_downgrade_ac()
45 	case 0:  in wme_downgrade_ac()
46 	case 3:  in wme_downgrade_ac()
47 		skb->priority = 2; /* BE -> BK */  in wme_downgrade_ac()
50 		return -1;  in wme_downgrade_ac()
55  * ieee80211_fix_reserved_tid - return the TID to use if this one is reserved
56  * @tid: the assumed-reserved TID
58  * Returns: the alternative TID to use, or 0 on error
63 	case 0:  in ieee80211_fix_reserved_tid()
65 	case 1:  in ieee80211_fix_reserved_tid()
67 	case 2:  in ieee80211_fix_reserved_tid()
69 	case 3:  in ieee80211_fix_reserved_tid()
71 	case 4:  in ieee80211_fix_reserved_tid()
73 	case 5:  in ieee80211_fix_reserved_tid()
75 	case 6:  in ieee80211_fix_reserved_tid()
77 	case 7:  in ieee80211_fix_reserved_tid()
87 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;  in ieee80211_downgrade_queue()
89 	/* in case we are a client verify acm is not set for this ac */  in ieee80211_downgrade_queue()
90 	while (sdata->wmm_acm & BIT(skb->priority)) {  in ieee80211_downgrade_queue()
91 		int ac = ieee802_1d_to_ac[skb->priority];  in ieee80211_downgrade_queue()
93 		if (ifmgd->tx_tspec[ac].admitted_time &&  in ieee80211_downgrade_queue()
94 		    skb->priority == ifmgd->tx_tspec[ac].up)  in ieee80211_downgrade_queue()
109 	if (sta && sta->reserved_tid == skb->priority)  in ieee80211_downgrade_queue()
110 		skb->priority = ieee80211_fix_reserved_tid(skb->priority);  in ieee80211_downgrade_queue()
112 	/* look up which queue to use for frames with this 1d tag */  in ieee80211_downgrade_queue()
113 	return ieee802_1d_to_ac[skb->priority];  in ieee80211_downgrade_queue()
116 /* Indicate which queue to use for this fully formed 802.11 frame */
121 	struct ieee80211_local *local = sdata->local;  in ieee80211_select_queue_80211()
128 	if ((info->control.flags & IEEE80211_TX_CTRL_DONT_REORDER) ||  in ieee80211_select_queue_80211()
129 	    local->hw.queues < IEEE80211_NUM_ACS)  in ieee80211_select_queue_80211()
132 	if (!ieee80211_is_data(hdr->frame_control)) {  in ieee80211_select_queue_80211()
133 		skb->priority = 7;  in ieee80211_select_queue_80211()
134 		return ieee802_1d_to_ac[skb->priority];  in ieee80211_select_queue_80211()
136 	if (!ieee80211_is_data_qos(hdr->frame_control)) {  in ieee80211_select_queue_80211()
137 		skb->priority = 0;  in ieee80211_select_queue_80211()
138 		return ieee802_1d_to_ac[skb->priority];  in ieee80211_select_queue_80211()
142 	skb->priority = *p & IEEE80211_QOS_CTL_TAG1D_MASK;  in ieee80211_select_queue_80211()
150 	const struct ethhdr *eth = (void *)skb->data;  in ieee80211_select_queue()
158 	if ((sdata->vif.type == NL80211_IFTYPE_MESH_POINT &&  in ieee80211_select_queue()
159 	    !is_multicast_ether_addr(eth->h_dest)) ||  in ieee80211_select_queue()
160 	    (sdata->vif.type == NL80211_IFTYPE_OCB && sta))  in ieee80211_select_queue()
163 		qos = sta->sta.wme;  in ieee80211_select_queue()
168 		skb->priority = 0; /* required for correct WPA/11i MIC */  in ieee80211_select_queue()
172 	if (skb->protocol == sdata->control_port_protocol) {  in ieee80211_select_queue()
173 		skb->priority = 7;  in ieee80211_select_queue()
177 	/* use the data classifier to determine what 802.1d tag the  in ieee80211_select_queue()
179 	qos_map = rcu_dereference(sdata->qos_map);  in ieee80211_select_queue()
180 	skb->priority = cfg80211_classify8021d(skb, qos_map ?  in ieee80211_select_queue()
181 					       &qos_map->qos_map : NULL);  in ieee80211_select_queue()
188  * ieee80211_set_qos_hdr - Fill in the QoS header if there is one.
196 	struct ieee80211_hdr *hdr = (void *)skb->data;  in ieee80211_set_qos_hdr()
198 	u8 tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;  in ieee80211_set_qos_hdr()
202 	if (!ieee80211_is_data_qos(hdr->frame_control))  in ieee80211_set_qos_hdr()
208 	if (info->flags & IEEE80211_TX_CTL_INJECTED) {  in ieee80211_set_qos_hdr()
211 			info->flags |= IEEE80211_TX_CTL_NO_ACK;  in ieee80211_set_qos_hdr()
224 	if (is_multicast_ether_addr(hdr->addr1) ||  in ieee80211_set_qos_hdr()
225 	    sdata->noack_map & BIT(tid)) {  in ieee80211_set_qos_hdr()
227 		info->flags |= IEEE80211_TX_CTL_NO_ACK;  in ieee80211_set_qos_hdr()
235 	if (ieee80211_vif_is_mesh(&sdata->vif)) {  in ieee80211_set_qos_hdr()
241 		if (!ieee80211_is_qos_nullfunc(hdr->frame_control))  in ieee80211_set_qos_hdr()