sys/net80211/ieee80211_power.c

108 ieee80211_psq_init(struct ieee80211_psq *psq, const char *name)
110 	memset(psq, 0, sizeof(*psq));
111 	psq->psq_maxlen = IEEE80211_PS_MAX_QUEUE;
112 	IEEE80211_PSQ_INIT(psq, name);		/* OS-dependent setup */
116 ieee80211_psq_cleanup(struct ieee80211_psq *psq)
119 	psq_drain(psq);				/* XXX should not be needed? */
121 	KASSERT(psq->psq_len == 0, ("%d frames on ps q", psq->psq_len));
123 	IEEE80211_PSQ_DESTROY(psq);		/* OS-dependent cleanup */
132 	struct ieee80211_psq *psq = &ni->ni_psq;
136 	IEEE80211_PSQ_LOCK(psq);
137 	qhead = &psq->psq_head[0];
144 		KASSERT(psq->psq_len > 0, ("psq len %d", psq->psq_len));
145 		psq->psq_len--;
148 	if (m == NULL && qhead == &psq->psq_head[0]) {
150 		qhead = &psq->psq_head[1];
154 		*qlen = psq->psq_len;
155 	IEEE80211_PSQ_UNLOCK(psq);
179 psq_drain(struct ieee80211_psq *psq)
185 	IEEE80211_PSQ_LOCK(psq);
186 	qlen = psq->psq_len;
187 	qhead = &psq->psq_head[0];
195 	if (qhead == &psq->psq_head[0]) {	/* Algol-68 style for loop */
196 		qhead = &psq->psq_head[1];
199 	psq->psq_len = 0;
200 	IEEE80211_PSQ_UNLOCK(psq);
228 	struct ieee80211_psq *psq = &ni->ni_psq;
231 	if (psq->psq_len != 0) {
238 		IEEE80211_PSQ_LOCK(psq);
239 		qhead = &psq->psq_head[0];
249 			KASSERT(psq->psq_len > 0, ("psq len %d", psq->psq_len));
250 			psq->psq_len--;
254 		if (qhead == &psq->psq_head[0]) { /* Algol-68 style for loop */
255 			qhead = &psq->psq_head[1];
260 		IEEE80211_PSQ_UNLOCK(psq);
326 	struct ieee80211_psq *psq = &ni->ni_psq;
332 	IEEE80211_PSQ_LOCK(psq);
333 	if (psq->psq_len >= psq->psq_maxlen) {
334 		psq->psq_drops++;
335 		IEEE80211_PSQ_UNLOCK(psq);
338 		    psq->psq_drops, psq->psq_len);
363 		qhead = &psq->psq_head[0];
365 		qhead = &psq->psq_head[1];
376 		if (qhead == &psq->psq_head[1]) {
377 			mh = psq->psq_head[0].head;
381 			mh = psq->psq_head[1].head;
397 	qlen = ++(psq->psq_len);
398 	IEEE80211_PSQ_UNLOCK(psq);
418 	struct ieee80211_psq *psq = &ni->ni_psq;
426 	    "flush ps queue, %u packets queued", psq->psq_len);
428 	IEEE80211_PSQ_LOCK(psq);
429 	qhead = &psq->psq_head[0];	/* 802.11 frames */
439 	qhead = &psq->psq_head[1];	/* 802.3 frames */
447 	psq->psq_len = 0;
448 	IEEE80211_PSQ_UNLOCK(psq);
450 	/* NB: do this outside the psq lock */