Lines Matching defs: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;
490 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
495 * a queue corruption!
500 "Corrupt queue %d, accessing entry which is not ours\n"
502 entry->queue->qid, DRV_PROJECT);
531 struct data_queue *queue = entry->queue;
533 queue->rt2x00dev->ops->lib->write_tx_desc(entry, txdesc);
539 rt2x00debug_dump_frame(queue->rt2x00dev, DUMP_FRAME_TX, entry);
542 static void rt2x00queue_kick_tx_queue(struct data_queue *queue,
546 * Check if we need to kick the queue, there are however a few rules
552 * in the queue are less then a certain threshold.
554 if (rt2x00queue_threshold(queue) ||
556 queue->rt2x00dev->ops->lib->kick_queue(queue);
561 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
601 int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
616 rt2x00queue_create_tx_descriptor(queue->rt2x00dev, skb, &txdesc, sta);
641 if (rt2x00_has_cap_flag(queue->rt2x00dev, REQUIRE_COPY_IV))
655 if (rt2x00_has_cap_flag(queue->rt2x00dev, REQUIRE_L2PAD))
657 else if (rt2x00_has_cap_flag(queue->rt2x00dev, REQUIRE_DMA))
663 spin_lock(&queue->tx_lock);
665 if (unlikely(rt2x00queue_full(queue))) {
666 rt2x00_dbg(queue->rt2x00dev, "Dropping frame due to full tx queue %d\n",
667 queue->qid);
672 entry = rt2x00queue_get_entry(queue, Q_INDEX);
676 rt2x00_err(queue->rt2x00dev,
677 "Arrived at non-free entry in the non-full queue %d\n"
679 queue->qid, DRV_PROJECT);
687 * It could be possible that the queue was corrupted and this
707 rt2x00queue_kick_tx_queue(queue, &txdesc);
711 * Pausing queue has to be serialized with rt2x00lib_txdone(), so we
712 * do this under queue->tx_lock. Bottom halve was already disabled
715 if (rt2x00queue_threshold(queue))
716 rt2x00queue_pause_queue(queue);
718 spin_unlock(&queue->tx_lock);
737 * since the beacon queue will get stopped anyway).
786 bool rt2x00queue_for_each_entry(struct data_queue *queue,
799 rt2x00_err(queue->rt2x00dev,
811 spin_lock_irqsave(&queue->index_lock, irqflags);
812 index_start = queue->index[start];
813 index_end = queue->index[end];
814 spin_unlock_irqrestore(&queue->index_lock, irqflags);
822 if (fn(&queue->entries[i], data))
826 for (i = index_start; i < queue->limit; i++) {
827 if (fn(&queue->entries[i], data))
832 if (fn(&queue->entries[i], data))
841 struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue,
848 rt2x00_err(queue->rt2x00dev, "Entry requested from invalid index type (%d)\n",
853 spin_lock_irqsave(&queue->index_lock, irqflags);
855 entry = &queue->entries[queue->index[index]];
857 spin_unlock_irqrestore(&queue->index_lock, irqflags);
865 struct data_queue *queue = entry->queue;
869 rt2x00_err(queue->rt2x00dev,
874 spin_lock_irqsave(&queue->index_lock, irqflags);
876 queue->index[index]++;
877 if (queue->index[index] >= queue->limit)
878 queue->index[index] = 0;
883 queue->length++;
885 queue->length--;
886 queue->count++;
889 spin_unlock_irqrestore(&queue->index_lock, irqflags);
892 static void rt2x00queue_pause_queue_nocheck(struct data_queue *queue)
894 switch (queue->qid) {
900 * For TX queues, we have to disable the queue
903 ieee80211_stop_queue(queue->rt2x00dev->hw, queue->qid);
909 void rt2x00queue_pause_queue(struct data_queue *queue)
911 if (!test_bit(DEVICE_STATE_PRESENT, &queue->rt2x00dev->flags) ||
912 !test_bit(QUEUE_STARTED, &queue->flags) ||
913 test_and_set_bit(QUEUE_PAUSED, &queue->flags))
916 rt2x00queue_pause_queue_nocheck(queue);
920 void rt2x00queue_unpause_queue(struct data_queue *queue)
922 if (!test_bit(DEVICE_STATE_PRESENT, &queue->rt2x00dev->flags) ||
923 !test_bit(QUEUE_STARTED, &queue->flags) ||
924 !test_and_clear_bit(QUEUE_PAUSED, &queue->flags))
927 switch (queue->qid) {
933 * For TX queues, we have to enable the queue
936 ieee80211_wake_queue(queue->rt2x00dev->hw, queue->qid);
940 * For RX we need to kick the queue now in order to
943 queue->rt2x00dev->ops->lib->kick_queue(queue);
950 void rt2x00queue_start_queue(struct data_queue *queue)
952 mutex_lock(&queue->status_lock);
954 if (!test_bit(DEVICE_STATE_PRESENT, &queue->rt2x00dev->flags) ||
955 test_and_set_bit(QUEUE_STARTED, &queue->flags)) {
956 mutex_unlock(&queue->status_lock);
960 set_bit(QUEUE_PAUSED, &queue->flags);
962 queue->rt2x00dev->ops->lib->start_queue(queue);
964 rt2x00queue_unpause_queue(queue);
966 mutex_unlock(&queue->status_lock);
970 void rt2x00queue_stop_queue(struct data_queue *queue)
972 mutex_lock(&queue->status_lock);
974 if (!test_and_clear_bit(QUEUE_STARTED, &queue->flags)) {
975 mutex_unlock(&queue->status_lock);
979 rt2x00queue_pause_queue_nocheck(queue);
981 queue->rt2x00dev->ops->lib->stop_queue(queue);
983 mutex_unlock(&queue->status_lock);
987 void rt2x00queue_flush_queue(struct data_queue *queue, bool drop)
990 (queue->qid == QID_AC_VO) ||
991 (queue->qid == QID_AC_VI) ||
992 (queue->qid == QID_AC_BE) ||
993 (queue->qid == QID_AC_BK);
995 if (rt2x00queue_empty(queue))
1001 * to the queue to make sure the hardware will
1005 queue->rt2x00dev->ops->lib->kick_queue(queue);
1010 * alternative which just waits for the queue to become empty.
1012 if (likely(queue->rt2x00dev->ops->lib->flush_queue))
1013 queue->rt2x00dev->ops->lib->flush_queue(queue, drop);
1016 * The queue flush has failed...
1018 if (unlikely(!rt2x00queue_empty(queue)))
1019 rt2x00_warn(queue->rt2x00dev, "Queue %d failed to flush\n",
1020 queue->qid);
1026 struct data_queue *queue;
1030 * for each queue after is has been properly initialized.
1032 tx_queue_for_each(rt2x00dev, queue)
1033 rt2x00queue_start_queue(queue);
1041 struct data_queue *queue;
1051 tx_queue_for_each(rt2x00dev, queue)
1052 rt2x00queue_stop_queue(queue);
1060 struct data_queue *queue;
1062 tx_queue_for_each(rt2x00dev, queue)
1063 rt2x00queue_flush_queue(queue, drop);
1069 static void rt2x00queue_reset(struct data_queue *queue)
1074 spin_lock_irqsave(&queue->index_lock, irqflags);
1076 queue->count = 0;
1077 queue->length = 0;
1080 queue->index[i] = 0;
1082 spin_unlock_irqrestore(&queue->index_lock, irqflags);
1087 struct data_queue *queue;
1090 queue_for_each(rt2x00dev, queue) {
1091 rt2x00queue_reset(queue);
1093 for (i = 0; i < queue->limit; i++)
1094 rt2x00dev->ops->lib->clear_entry(&queue->entries[i]);
1098 static int rt2x00queue_alloc_entries(struct data_queue *queue)
1104 rt2x00queue_reset(queue);
1107 * Allocate all queue entries.
1109 entry_size = sizeof(*entries) + queue->priv_size;
1110 entries = kcalloc(queue->limit, entry_size, GFP_KERNEL);
1118 for (i = 0; i < queue->limit; i++) {
1120 entries[i].queue = queue;
1124 QUEUE_ENTRY_PRIV_OFFSET(entries, i, queue->limit,
1125 sizeof(*entries), queue->priv_size);
1130 queue->entries = entries;
1135 static void rt2x00queue_free_skbs(struct data_queue *queue)
1139 if (!queue->entries)
1142 for (i = 0; i < queue->limit; i++) {
1143 rt2x00queue_free_skb(&queue->entries[i]);
1147 static int rt2x00queue_alloc_rxskbs(struct data_queue *queue)
1152 for (i = 0; i < queue->limit; i++) {
1153 skb = rt2x00queue_alloc_rxskb(&queue->entries[i], GFP_KERNEL);
1156 queue->entries[i].skb = skb;
1164 struct data_queue *queue;
1171 tx_queue_for_each(rt2x00dev, queue) {
1172 status = rt2x00queue_alloc_entries(queue);
1203 struct data_queue *queue;
1207 queue_for_each(rt2x00dev, queue) {
1208 kfree(queue->entries);
1209 queue->entries = NULL;
1214 struct data_queue *queue, enum data_queue_qid qid)
1216 mutex_init(&queue->status_lock);
1217 spin_lock_init(&queue->tx_lock);
1218 spin_lock_init(&queue->index_lock);
1220 queue->rt2x00dev = rt2x00dev;
1221 queue->qid = qid;
1222 queue->txop = 0;
1223 queue->aifs = 2;
1224 queue->cw_min = 5;
1225 queue->cw_max = 10;
1227 rt2x00dev->ops->queue_init(queue);
1229 queue->threshold = DIV_ROUND_UP(queue->limit, 10);
1234 struct data_queue *queue;
1248 queue = kcalloc(rt2x00dev->data_queues, sizeof(*queue), GFP_KERNEL);
1249 if (!queue)
1255 rt2x00dev->rx = queue;
1256 rt2x00dev->tx = &queue[1];
1257 rt2x00dev->bcn = &queue[1 + rt2x00dev->ops->tx_queues];
1258 rt2x00dev->atim = req_atim ? &queue[2 + rt2x00dev->ops->tx_queues] : NULL;
1261 * Initialize queue parameters.
1272 tx_queue_for_each(rt2x00dev, queue)
1273 rt2x00queue_init(rt2x00dev, queue, qid++);