2 Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
3 <http://rt2x00.serialmonkey.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the
17 Free Software Foundation, Inc.,
18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 Abstract: rt2x00 queue specific routines.
26 #include <linux/kernel.h>
27 #include <linux/module.h>
28 #include <linux/dma-mapping.h>
31 #include "rt2x00lib.h"
33 struct sk_buff *rt2x00queue_alloc_rxskb(struct rt2x00_dev *rt2x00dev,
34 struct queue_entry *entry)
37 struct skb_frame_desc *skbdesc;
38 unsigned int frame_size;
39 unsigned int head_size = 0;
40 unsigned int tail_size = 0;
43 * The frame size includes descriptor size, because the
44 * hardware directly receive the frame into the skbuffer.
46 frame_size = entry->queue->data_size + entry->queue->desc_size;
49 * The payload should be aligned to a 4-byte boundary,
50 * this means we need at least 3 bytes for moving the frame
51 * into the correct offset.
56 * For IV/EIV/ICV assembly we must make sure there is
57 * at least 8 bytes bytes available in headroom for IV/EIV
58 * and 4 bytes for ICV data as tailroon.
60 #ifdef CONFIG_RT2X00_LIB_CRYPTO
61 if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags)) {
65 #endif /* CONFIG_RT2X00_LIB_CRYPTO */
70 skb = dev_alloc_skb(frame_size + head_size + tail_size);
75 * Make sure we not have a frame with the requested bytes
76 * available in the head and tail.
78 skb_reserve(skb, head_size);
79 skb_put(skb, frame_size);
84 skbdesc = get_skb_frame_desc(skb);
85 memset(skbdesc, 0, sizeof(*skbdesc));
86 skbdesc->entry = entry;
88 if (test_bit(DRIVER_REQUIRE_DMA, &rt2x00dev->flags)) {
89 skbdesc->skb_dma = dma_map_single(rt2x00dev->dev,
93 skbdesc->flags |= SKBDESC_DMA_MAPPED_RX;
99 void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb)
101 struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
104 * If device has requested headroom, we should make sure that
105 * is also mapped to the DMA so it can be used for transfering
106 * additional descriptor information to the hardware.
108 skb_push(skb, rt2x00dev->hw->extra_tx_headroom);
111 dma_map_single(rt2x00dev->dev, skb->data, skb->len, DMA_TO_DEVICE);
114 * Restore data pointer to original location again.
116 skb_pull(skb, rt2x00dev->hw->extra_tx_headroom);
118 skbdesc->flags |= SKBDESC_DMA_MAPPED_TX;
120 EXPORT_SYMBOL_GPL(rt2x00queue_map_txskb);
122 void rt2x00queue_unmap_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb)
124 struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
126 if (skbdesc->flags & SKBDESC_DMA_MAPPED_RX) {
127 dma_unmap_single(rt2x00dev->dev, skbdesc->skb_dma, skb->len,
129 skbdesc->flags &= ~SKBDESC_DMA_MAPPED_RX;
132 if (skbdesc->flags & SKBDESC_DMA_MAPPED_TX) {
134 * Add headroom to the skb length, it has been removed
135 * by the driver, but it was actually mapped to DMA.
137 dma_unmap_single(rt2x00dev->dev, skbdesc->skb_dma,
138 skb->len + rt2x00dev->hw->extra_tx_headroom,
140 skbdesc->flags &= ~SKBDESC_DMA_MAPPED_TX;
144 void rt2x00queue_free_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb)
149 rt2x00queue_unmap_skb(rt2x00dev, skb);
150 dev_kfree_skb_any(skb);
153 static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
154 struct txentry_desc *txdesc)
156 struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
157 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
158 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)entry->skb->data;
159 struct ieee80211_rate *rate =
160 ieee80211_get_tx_rate(rt2x00dev->hw, tx_info);
161 const struct rt2x00_rate *hwrate;
162 unsigned int data_length;
163 unsigned int duration;
164 unsigned int residual;
165 unsigned long irqflags;
167 memset(txdesc, 0, sizeof(*txdesc));
170 * Initialize information from queue
172 txdesc->queue = entry->queue->qid;
173 txdesc->cw_min = entry->queue->cw_min;
174 txdesc->cw_max = entry->queue->cw_max;
175 txdesc->aifs = entry->queue->aifs;
177 /* Data length + CRC + IV/EIV/ICV/MMIC (when using encryption) */
178 data_length = entry->skb->len + 4;
181 * Check whether this frame is to be acked.
183 if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK))
184 __set_bit(ENTRY_TXD_ACK, &txdesc->flags);
186 #ifdef CONFIG_RT2X00_LIB_CRYPTO
187 if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags) &&
188 !entry->skb->do_not_encrypt) {
189 struct ieee80211_key_conf *hw_key = tx_info->control.hw_key;
191 __set_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags);
193 txdesc->cipher = rt2x00crypto_key_to_cipher(hw_key);
195 if (hw_key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
196 __set_bit(ENTRY_TXD_ENCRYPT_PAIRWISE, &txdesc->flags);
198 txdesc->key_idx = hw_key->hw_key_idx;
199 txdesc->iv_offset = ieee80211_get_hdrlen_from_skb(entry->skb);
202 * Extend frame length to include all encryption overhead
203 * that will be added by the hardware.
205 data_length += rt2x00crypto_tx_overhead(tx_info);
207 if (!(hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV))
208 __set_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags);
210 if (!(hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_MMIC))
211 __set_bit(ENTRY_TXD_ENCRYPT_MMIC, &txdesc->flags);
213 #endif /* CONFIG_RT2X00_LIB_CRYPTO */
216 * Check if this is a RTS/CTS frame
218 if (ieee80211_is_rts(hdr->frame_control) ||
219 ieee80211_is_cts(hdr->frame_control)) {
220 __set_bit(ENTRY_TXD_BURST, &txdesc->flags);
221 if (ieee80211_is_rts(hdr->frame_control))
222 __set_bit(ENTRY_TXD_RTS_FRAME, &txdesc->flags);
224 __set_bit(ENTRY_TXD_CTS_FRAME, &txdesc->flags);
225 if (tx_info->control.rts_cts_rate_idx >= 0)
227 ieee80211_get_rts_cts_rate(rt2x00dev->hw, tx_info);
231 * Determine retry information.
233 txdesc->retry_limit = tx_info->control.rates[0].count - 1;
235 * XXX: If at this point we knew whether the HW is going to use
236 * the RETRY_MODE bit or the retry_limit (currently all
237 * use the RETRY_MODE bit) we could do something like b43
238 * does, set the RETRY_MODE bit when the RC algorithm is
239 * requesting more than the long retry limit.
241 if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
242 __set_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags);
245 * Check if more fragments are pending
247 if (ieee80211_has_morefrags(hdr->frame_control)) {
248 __set_bit(ENTRY_TXD_BURST, &txdesc->flags);
249 __set_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags);
253 * Beacons and probe responses require the tsf timestamp
254 * to be inserted into the frame.
256 if (ieee80211_is_beacon(hdr->frame_control) ||
257 ieee80211_is_probe_resp(hdr->frame_control))
258 __set_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags);
261 * Determine with what IFS priority this frame should be send.
262 * Set ifs to IFS_SIFS when the this is not the first fragment,
263 * or this fragment came after RTS/CTS.
265 if (test_bit(ENTRY_TXD_RTS_FRAME, &txdesc->flags)) {
266 txdesc->ifs = IFS_SIFS;
267 } else if (tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) {
268 __set_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags);
269 txdesc->ifs = IFS_BACKOFF;
271 txdesc->ifs = IFS_SIFS;
275 * Hardware should insert sequence counter.
276 * FIXME: We insert a software sequence counter first for
277 * hardware that doesn't support hardware sequence counting.
279 * This is wrong because beacons are not getting sequence
280 * numbers assigned properly.
282 * A secondary problem exists for drivers that cannot toggle
283 * sequence counting per-frame, since those will override the
284 * sequence counter given by mac80211.
286 if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
287 if (likely(tx_info->control.vif)) {
288 struct rt2x00_intf *intf;
290 intf = vif_to_intf(tx_info->control.vif);
292 spin_lock_irqsave(&intf->seqlock, irqflags);
294 if (test_bit(ENTRY_TXD_FIRST_FRAGMENT, &txdesc->flags))
296 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
297 hdr->seq_ctrl |= cpu_to_le16(intf->seqno);
299 spin_unlock_irqrestore(&intf->seqlock, irqflags);
301 __set_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
307 * Length calculation depends on OFDM/CCK rate.
309 hwrate = rt2x00_get_rate(rate->hw_value);
310 txdesc->signal = hwrate->plcp;
311 txdesc->service = 0x04;
313 if (hwrate->flags & DEV_RATE_OFDM) {
314 __set_bit(ENTRY_TXD_OFDM_RATE, &txdesc->flags);
316 txdesc->length_high = (data_length >> 6) & 0x3f;
317 txdesc->length_low = data_length & 0x3f;
320 * Convert length to microseconds.
322 residual = GET_DURATION_RES(data_length, hwrate->bitrate);
323 duration = GET_DURATION(data_length, hwrate->bitrate);
329 * Check if we need to set the Length Extension
331 if (hwrate->bitrate == 110 && residual <= 30)
332 txdesc->service |= 0x80;
335 txdesc->length_high = (duration >> 8) & 0xff;
336 txdesc->length_low = duration & 0xff;
339 * When preamble is enabled we should set the
340 * preamble bit for the signal.
342 if (rt2x00_get_rate_preamble(rate->hw_value))
343 txdesc->signal |= 0x08;
347 static void rt2x00queue_write_tx_descriptor(struct queue_entry *entry,
348 struct txentry_desc *txdesc)
350 struct data_queue *queue = entry->queue;
351 struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
353 rt2x00dev->ops->lib->write_tx_desc(rt2x00dev, entry->skb, txdesc);
356 * All processing on the frame has been completed, this means
357 * it is now ready to be dumped to userspace through debugfs.
359 rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_TX, entry->skb);
362 * Check if we need to kick the queue, there are however a few rules
363 * 1) Don't kick beacon queue
364 * 2) Don't kick unless this is the last in frame in a burst.
365 * When the burst flag is set, this frame is always followed
366 * by another frame which in some way are related to eachother.
367 * This is true for fragments, RTS or CTS-to-self frames.
368 * 3) Rule 2 can be broken when the available entries
369 * in the queue are less then a certain threshold.
371 if (entry->queue->qid == QID_BEACON)
374 if (rt2x00queue_threshold(queue) ||
375 !test_bit(ENTRY_TXD_BURST, &txdesc->flags))
376 rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, queue->qid);
379 int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb)
381 struct ieee80211_tx_info *tx_info;
382 struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX);
383 struct txentry_desc txdesc;
384 struct skb_frame_desc *skbdesc;
385 unsigned int iv_len = 0;
386 u8 rate_idx, rate_flags;
388 if (unlikely(rt2x00queue_full(queue)))
391 if (test_and_set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags)) {
392 ERROR(queue->rt2x00dev,
393 "Arrived at non-free entry in the non-full queue %d.\n"
394 "Please file bug report to %s.\n",
395 queue->qid, DRV_PROJECT);
400 * Copy all TX descriptor information into txdesc,
401 * after that we are free to use the skb->cb array
402 * for our information.
405 rt2x00queue_create_tx_descriptor(entry, &txdesc);
407 if (IEEE80211_SKB_CB(skb)->control.hw_key != NULL)
408 iv_len = IEEE80211_SKB_CB(skb)->control.hw_key->iv_len;
411 * All information is retrieved from the skb->cb array,
412 * now we should claim ownership of the driver part of that
413 * array, preserving the bitrate index and flags.
415 tx_info = IEEE80211_SKB_CB(skb);
416 rate_idx = tx_info->control.rates[0].idx;
417 rate_flags = tx_info->control.rates[0].flags;
418 skbdesc = get_skb_frame_desc(skb);
419 memset(skbdesc, 0, sizeof(*skbdesc));
420 skbdesc->entry = entry;
421 skbdesc->tx_rate_idx = rate_idx;
422 skbdesc->tx_rate_flags = rate_flags;
425 * When hardware encryption is supported, and this frame
426 * is to be encrypted, we should strip the IV/EIV data from
427 * the frame so we can provide it to the driver seperately.
429 if (test_bit(ENTRY_TXD_ENCRYPT, &txdesc.flags) &&
430 !test_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc.flags))
431 rt2x00crypto_tx_remove_iv(skb, iv_len);
434 * It could be possible that the queue was corrupted and this
435 * call failed. Since we always return NETDEV_TX_OK to mac80211,
436 * this frame will simply be dropped.
438 if (unlikely(queue->rt2x00dev->ops->lib->write_tx_data(entry))) {
439 clear_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags);
444 if (test_bit(DRIVER_REQUIRE_DMA, &queue->rt2x00dev->flags))
445 rt2x00queue_map_txskb(queue->rt2x00dev, skb);
447 set_bit(ENTRY_DATA_PENDING, &entry->flags);
449 rt2x00queue_index_inc(queue, Q_INDEX);
450 rt2x00queue_write_tx_descriptor(entry, &txdesc);
455 int rt2x00queue_update_beacon(struct rt2x00_dev *rt2x00dev,
456 struct ieee80211_vif *vif)
458 struct rt2x00_intf *intf = vif_to_intf(vif);
459 struct skb_frame_desc *skbdesc;
460 struct txentry_desc txdesc;
463 if (unlikely(!intf->beacon))
466 intf->beacon->skb = ieee80211_beacon_get(rt2x00dev->hw, vif);
467 if (!intf->beacon->skb)
471 * Copy all TX descriptor information into txdesc,
472 * after that we are free to use the skb->cb array
473 * for our information.
475 rt2x00queue_create_tx_descriptor(intf->beacon, &txdesc);
478 * For the descriptor we use a local array from where the
479 * driver can move it to the correct location required for
482 memset(desc, 0, sizeof(desc));
485 * Fill in skb descriptor
487 skbdesc = get_skb_frame_desc(intf->beacon->skb);
488 memset(skbdesc, 0, sizeof(*skbdesc));
489 skbdesc->desc = desc;
490 skbdesc->desc_len = intf->beacon->queue->desc_size;
491 skbdesc->entry = intf->beacon;
494 * Write TX descriptor into reserved room in front of the beacon.
496 rt2x00queue_write_tx_descriptor(intf->beacon, &txdesc);
499 * Send beacon to hardware.
500 * Also enable beacon generation, which might have been disabled
501 * by the driver during the config_beacon() callback function.
503 rt2x00dev->ops->lib->write_beacon(intf->beacon);
504 rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, QID_BEACON);
509 struct data_queue *rt2x00queue_get_queue(struct rt2x00_dev *rt2x00dev,
510 const enum data_queue_qid queue)
512 int atim = test_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
514 if (queue < rt2x00dev->ops->tx_queues && rt2x00dev->tx)
515 return &rt2x00dev->tx[queue];
520 if (queue == QID_BEACON)
521 return &rt2x00dev->bcn[0];
522 else if (queue == QID_ATIM && atim)
523 return &rt2x00dev->bcn[1];
527 EXPORT_SYMBOL_GPL(rt2x00queue_get_queue);
529 struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue,
530 enum queue_index index)
532 struct queue_entry *entry;
533 unsigned long irqflags;
535 if (unlikely(index >= Q_INDEX_MAX)) {
536 ERROR(queue->rt2x00dev,
537 "Entry requested from invalid index type (%d)\n", index);
541 spin_lock_irqsave(&queue->lock, irqflags);
543 entry = &queue->entries[queue->index[index]];
545 spin_unlock_irqrestore(&queue->lock, irqflags);
549 EXPORT_SYMBOL_GPL(rt2x00queue_get_entry);
551 void rt2x00queue_index_inc(struct data_queue *queue, enum queue_index index)
553 unsigned long irqflags;
555 if (unlikely(index >= Q_INDEX_MAX)) {
556 ERROR(queue->rt2x00dev,
557 "Index change on invalid index type (%d)\n", index);
561 spin_lock_irqsave(&queue->lock, irqflags);
563 queue->index[index]++;
564 if (queue->index[index] >= queue->limit)
565 queue->index[index] = 0;
567 if (index == Q_INDEX) {
569 } else if (index == Q_INDEX_DONE) {
574 spin_unlock_irqrestore(&queue->lock, irqflags);
577 static void rt2x00queue_reset(struct data_queue *queue)
579 unsigned long irqflags;
581 spin_lock_irqsave(&queue->lock, irqflags);
585 memset(queue->index, 0, sizeof(queue->index));
587 spin_unlock_irqrestore(&queue->lock, irqflags);
590 void rt2x00queue_init_queues(struct rt2x00_dev *rt2x00dev)
592 struct data_queue *queue;
595 queue_for_each(rt2x00dev, queue) {
596 rt2x00queue_reset(queue);
598 for (i = 0; i < queue->limit; i++) {
599 queue->entries[i].flags = 0;
601 rt2x00dev->ops->lib->clear_entry(&queue->entries[i]);
606 static int rt2x00queue_alloc_entries(struct data_queue *queue,
607 const struct data_queue_desc *qdesc)
609 struct queue_entry *entries;
610 unsigned int entry_size;
613 rt2x00queue_reset(queue);
615 queue->limit = qdesc->entry_num;
616 queue->threshold = DIV_ROUND_UP(qdesc->entry_num, 10);
617 queue->data_size = qdesc->data_size;
618 queue->desc_size = qdesc->desc_size;
621 * Allocate all queue entries.
623 entry_size = sizeof(*entries) + qdesc->priv_size;
624 entries = kzalloc(queue->limit * entry_size, GFP_KERNEL);
628 #define QUEUE_ENTRY_PRIV_OFFSET(__base, __index, __limit, __esize, __psize) \
629 ( ((char *)(__base)) + ((__limit) * (__esize)) + \
630 ((__index) * (__psize)) )
632 for (i = 0; i < queue->limit; i++) {
633 entries[i].flags = 0;
634 entries[i].queue = queue;
635 entries[i].skb = NULL;
636 entries[i].entry_idx = i;
637 entries[i].priv_data =
638 QUEUE_ENTRY_PRIV_OFFSET(entries, i, queue->limit,
639 sizeof(*entries), qdesc->priv_size);
642 #undef QUEUE_ENTRY_PRIV_OFFSET
644 queue->entries = entries;
649 static void rt2x00queue_free_skbs(struct rt2x00_dev *rt2x00dev,
650 struct data_queue *queue)
657 for (i = 0; i < queue->limit; i++) {
658 if (queue->entries[i].skb)
659 rt2x00queue_free_skb(rt2x00dev, queue->entries[i].skb);
663 static int rt2x00queue_alloc_rxskbs(struct rt2x00_dev *rt2x00dev,
664 struct data_queue *queue)
669 for (i = 0; i < queue->limit; i++) {
670 skb = rt2x00queue_alloc_rxskb(rt2x00dev, &queue->entries[i]);
673 queue->entries[i].skb = skb;
679 int rt2x00queue_initialize(struct rt2x00_dev *rt2x00dev)
681 struct data_queue *queue;
684 status = rt2x00queue_alloc_entries(rt2x00dev->rx, rt2x00dev->ops->rx);
688 tx_queue_for_each(rt2x00dev, queue) {
689 status = rt2x00queue_alloc_entries(queue, rt2x00dev->ops->tx);
694 status = rt2x00queue_alloc_entries(rt2x00dev->bcn, rt2x00dev->ops->bcn);
698 if (test_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags)) {
699 status = rt2x00queue_alloc_entries(&rt2x00dev->bcn[1],
700 rt2x00dev->ops->atim);
705 status = rt2x00queue_alloc_rxskbs(rt2x00dev, rt2x00dev->rx);
712 ERROR(rt2x00dev, "Queue entries allocation failed.\n");
714 rt2x00queue_uninitialize(rt2x00dev);
719 void rt2x00queue_uninitialize(struct rt2x00_dev *rt2x00dev)
721 struct data_queue *queue;
723 rt2x00queue_free_skbs(rt2x00dev, rt2x00dev->rx);
725 queue_for_each(rt2x00dev, queue) {
726 kfree(queue->entries);
727 queue->entries = NULL;
731 static void rt2x00queue_init(struct rt2x00_dev *rt2x00dev,
732 struct data_queue *queue, enum data_queue_qid qid)
734 spin_lock_init(&queue->lock);
736 queue->rt2x00dev = rt2x00dev;
744 int rt2x00queue_allocate(struct rt2x00_dev *rt2x00dev)
746 struct data_queue *queue;
747 enum data_queue_qid qid;
748 unsigned int req_atim =
749 !!test_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
752 * We need the following queues:
756 * Atim: 1 (if required)
758 rt2x00dev->data_queues = 2 + rt2x00dev->ops->tx_queues + req_atim;
760 queue = kzalloc(rt2x00dev->data_queues * sizeof(*queue), GFP_KERNEL);
762 ERROR(rt2x00dev, "Queue allocation failed.\n");
767 * Initialize pointers
769 rt2x00dev->rx = queue;
770 rt2x00dev->tx = &queue[1];
771 rt2x00dev->bcn = &queue[1 + rt2x00dev->ops->tx_queues];
774 * Initialize queue parameters.
776 * TX: qid = QID_AC_BE + index
777 * TX: cw_min: 2^5 = 32.
778 * TX: cw_max: 2^10 = 1024.
779 * BCN: qid = QID_BEACON
780 * ATIM: qid = QID_ATIM
782 rt2x00queue_init(rt2x00dev, rt2x00dev->rx, QID_RX);
785 tx_queue_for_each(rt2x00dev, queue)
786 rt2x00queue_init(rt2x00dev, queue, qid++);
788 rt2x00queue_init(rt2x00dev, &rt2x00dev->bcn[0], QID_BEACON);
790 rt2x00queue_init(rt2x00dev, &rt2x00dev->bcn[1], QID_ATIM);
795 void rt2x00queue_free(struct rt2x00_dev *rt2x00dev)
797 kfree(rt2x00dev->rx);
798 rt2x00dev->rx = NULL;
799 rt2x00dev->tx = NULL;
800 rt2x00dev->bcn = NULL;