Lines Matching refs:queue
12 Abstract: rt2x00 queue specific routines.
25 struct data_queue *queue = entry->queue;
26 struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
37 frame_size = queue->data_size + queue->desc_size + queue->winfo_size;
95 struct device *dev = entry->queue->rt2x00dev->dev;
112 struct device *dev = entry->queue->rt2x00dev->dev;
488 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
493 * a queue corruption!
498 "Corrupt queue %d, accessing entry which is not ours\n"
500 entry->queue->qid, DRV_PROJECT);
529 struct data_queue *queue = entry->queue;
531 queue->rt2x00dev->ops->lib->write_tx_desc(entry, txdesc);
537 rt2x00debug_dump_frame(queue->rt2x00dev, DUMP_FRAME_TX, entry);
540 static void rt2x00queue_kick_tx_queue(struct data_queue *queue,
544 * Check if we need to kick the queue, there are however a few rules
550 * in the queue are less then a certain threshold.
552 if (rt2x00queue_threshold(queue) ||
554 queue->rt2x00dev->ops->lib->kick_queue(queue);
559 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
599 int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
614 rt2x00queue_create_tx_descriptor(queue->rt2x00dev, skb, &txdesc, sta);
639 if (rt2x00_has_cap_flag(queue->rt2x00dev, REQUIRE_COPY_IV))
653 if (rt2x00_has_cap_flag(queue->rt2x00dev, REQUIRE_L2PAD))
655 else if (rt2x00_has_cap_flag(queue->rt2x00dev, REQUIRE_DMA))
661 spin_lock(&queue->tx_lock);
663 if (unlikely(rt2x00queue_full(queue))) {
664 rt2x00_dbg(queue->rt2x00dev, "Dropping frame due to full tx queue %d\n",
665 queue->qid);
670 entry = rt2x00queue_get_entry(queue, Q_INDEX);
674 rt2x00_err(queue->rt2x00dev,
675 "Arrived at non-free entry in the non-full queue %d\n"
677 queue->qid, DRV_PROJECT);
685 * It could be possible that the queue was corrupted and this
705 rt2x00queue_kick_tx_queue(queue, &txdesc);
709 * Pausing queue has to be serialized with rt2x00lib_txdone(), so we
710 * do this under queue->tx_lock. Bottom halve was already disabled
713 if (rt2x00queue_threshold(queue))
714 rt2x00queue_pause_queue(queue);
716 spin_unlock(&queue->tx_lock);
735 * since the beacon queue will get stopped anyway).
784 bool rt2x00queue_for_each_entry(struct data_queue *queue,
797 rt2x00_err(queue->rt2x00dev,
809 spin_lock_irqsave(&queue->index_lock, irqflags);
810 index_start = queue->index[start];
811 index_end = queue->index[end];
812 spin_unlock_irqrestore(&queue->index_lock, irqflags);
820 if (fn(&queue->entries[i], data))
824 for (i = index_start; i < queue->limit; i++) {
825 if (fn(&queue->entries[i], data))
830 if (fn(&queue->entries[i], data))
839 struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue,
846 rt2x00_err(queue->rt2x00dev, "Entry requested from invalid index type (%d)\n",
851 spin_lock_irqsave(&queue->index_lock, irqflags);
853 entry = &queue->entries[queue->index[index]];
855 spin_unlock_irqrestore(&queue->index_lock, irqflags);
863 struct data_queue *queue = entry->queue;
867 rt2x00_err(queue->rt2x00dev,
872 spin_lock_irqsave(&queue->index_lock, irqflags);
874 queue->index[index]++;
875 if (queue->index[index] >= queue->limit)
876 queue->index[index] = 0;
881 queue->length++;
883 queue->length--;
884 queue->count++;
887 spin_unlock_irqrestore(&queue->index_lock, irqflags);
890 static void rt2x00queue_pause_queue_nocheck(struct data_queue *queue)
892 switch (queue->qid) {
898 * For TX queues, we have to disable the queue
901 ieee80211_stop_queue(queue->rt2x00dev->hw, queue->qid);
907 void rt2x00queue_pause_queue(struct data_queue *queue)
909 if (!test_bit(DEVICE_STATE_PRESENT, &queue->rt2x00dev->flags) ||
910 !test_bit(QUEUE_STARTED, &queue->flags) ||
911 test_and_set_bit(QUEUE_PAUSED, &queue->flags))
914 rt2x00queue_pause_queue_nocheck(queue);
918 void rt2x00queue_unpause_queue(struct data_queue *queue)
920 if (!test_bit(DEVICE_STATE_PRESENT, &queue->rt2x00dev->flags) ||
921 !test_bit(QUEUE_STARTED, &queue->flags) ||
922 !test_and_clear_bit(QUEUE_PAUSED, &queue->flags))
925 switch (queue->qid) {
931 * For TX queues, we have to enable the queue
934 ieee80211_wake_queue(queue->rt2x00dev->hw, queue->qid);
938 * For RX we need to kick the queue now in order to
941 queue->rt2x00dev->ops->lib->kick_queue(queue);
949 void rt2x00queue_start_queue(struct data_queue *queue)
951 mutex_lock(&queue->status_lock);
953 if (!test_bit(DEVICE_STATE_PRESENT, &queue->rt2x00dev->flags) ||
954 test_and_set_bit(QUEUE_STARTED, &queue->flags)) {
955 mutex_unlock(&queue->status_lock);
959 set_bit(QUEUE_PAUSED, &queue->flags);
961 queue->rt2x00dev->ops->lib->start_queue(queue);
963 rt2x00queue_unpause_queue(queue);
965 mutex_unlock(&queue->status_lock);
969 void rt2x00queue_stop_queue(struct data_queue *queue)
971 mutex_lock(&queue->status_lock);
973 if (!test_and_clear_bit(QUEUE_STARTED, &queue->flags)) {
974 mutex_unlock(&queue->status_lock);
978 rt2x00queue_pause_queue_nocheck(queue);
980 queue->rt2x00dev->ops->lib->stop_queue(queue);
982 mutex_unlock(&queue->status_lock);
986 void rt2x00queue_flush_queue(struct data_queue *queue, bool drop)
989 (queue->qid == QID_AC_VO) ||
990 (queue->qid == QID_AC_VI) ||
991 (queue->qid == QID_AC_BE) ||
992 (queue->qid == QID_AC_BK);
994 if (rt2x00queue_empty(queue))
1000 * to the queue to make sure the hardware will
1004 queue->rt2x00dev->ops->lib->kick_queue(queue);
1009 * alternative which just waits for the queue to become empty.
1011 if (likely(queue->rt2x00dev->ops->lib->flush_queue))
1012 queue->rt2x00dev->ops->lib->flush_queue(queue, drop);
1015 * The queue flush has failed...
1017 if (unlikely(!rt2x00queue_empty(queue)))
1018 rt2x00_warn(queue->rt2x00dev, "Queue %d failed to flush\n",
1019 queue->qid);
1025 struct data_queue *queue;
1029 * for each queue after is has been properly initialized.
1031 tx_queue_for_each(rt2x00dev, queue)
1032 rt2x00queue_start_queue(queue);
1040 struct data_queue *queue;
1050 tx_queue_for_each(rt2x00dev, queue)
1051 rt2x00queue_stop_queue(queue);
1059 struct data_queue *queue;
1061 tx_queue_for_each(rt2x00dev, queue)
1062 rt2x00queue_flush_queue(queue, drop);
1068 static void rt2x00queue_reset(struct data_queue *queue)
1073 spin_lock_irqsave(&queue->index_lock, irqflags);
1075 queue->count = 0;
1076 queue->length = 0;
1079 queue->index[i] = 0;
1081 spin_unlock_irqrestore(&queue->index_lock, irqflags);
1086 struct data_queue *queue;
1089 queue_for_each(rt2x00dev, queue) {
1090 rt2x00queue_reset(queue);
1092 for (i = 0; i < queue->limit; i++)
1093 rt2x00dev->ops->lib->clear_entry(&queue->entries[i]);
1097 static int rt2x00queue_alloc_entries(struct data_queue *queue)
1103 rt2x00queue_reset(queue);
1106 * Allocate all queue entries.
1108 entry_size = sizeof(*entries) + queue->priv_size;
1109 entries = kcalloc(queue->limit, entry_size, GFP_KERNEL);
1117 for (i = 0; i < queue->limit; i++) {
1119 entries[i].queue = queue;
1123 QUEUE_ENTRY_PRIV_OFFSET(entries, i, queue->limit,
1124 sizeof(*entries), queue->priv_size);
1129 queue->entries = entries;
1134 static void rt2x00queue_free_skbs(struct data_queue *queue)
1138 if (!queue->entries)
1141 for (i = 0; i < queue->limit; i++) {
1142 rt2x00queue_free_skb(&queue->entries[i]);
1146 static int rt2x00queue_alloc_rxskbs(struct data_queue *queue)
1151 for (i = 0; i < queue->limit; i++) {
1152 skb = rt2x00queue_alloc_rxskb(&queue->entries[i], GFP_KERNEL);
1155 queue->entries[i].skb = skb;
1163 struct data_queue *queue;
1170 tx_queue_for_each(rt2x00dev, queue) {
1171 status = rt2x00queue_alloc_entries(queue);
1202 struct data_queue *queue;
1206 queue_for_each(rt2x00dev, queue) {
1207 kfree(queue->entries);
1208 queue->entries = NULL;
1213 struct data_queue *queue, enum data_queue_qid qid)
1215 mutex_init(&queue->status_lock);
1216 spin_lock_init(&queue->tx_lock);
1217 spin_lock_init(&queue->index_lock);
1219 queue->rt2x00dev = rt2x00dev;
1220 queue->qid = qid;
1221 queue->txop = 0;
1222 queue->aifs = 2;
1223 queue->cw_min = 5;
1224 queue->cw_max = 10;
1226 rt2x00dev->ops->queue_init(queue);
1228 queue->threshold = DIV_ROUND_UP(queue->limit, 10);
1233 struct data_queue *queue;
1247 queue = kcalloc(rt2x00dev->data_queues, sizeof(*queue), GFP_KERNEL);
1248 if (!queue)
1254 rt2x00dev->rx = queue;
1255 rt2x00dev->tx = &queue[1];
1256 rt2x00dev->bcn = &queue[1 + rt2x00dev->ops->tx_queues];
1257 rt2x00dev->atim = req_atim ? &queue[2 + rt2x00dev->ops->tx_queues] : NULL;
1260 * Initialize queue parameters.
1271 tx_queue_for_each(rt2x00dev, queue)
1272 rt2x00queue_init(rt2x00dev, queue, qid++);