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authorFelix Fietkau <nbd@openwrt.org>2010-11-03 14:55:59 +0000
committerFelix Fietkau <nbd@openwrt.org>2010-11-03 14:55:59 +0000
commit8bab3639b3053479badcb91cce12d634f248b906 (patch)
tree27393dc378a24dc542059a7cecc364bde990ca38 /package/mac80211
parentb4e2c09b46d37dd2e7020b9f8f157c3fcfc9b76d (diff)
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ath9k: fix queue pending frame counter tracking by cleaning up tx queue selection
SVN-Revision: 23823
Diffstat (limited to 'package/mac80211')
-rw-r--r--package/mac80211/patches/572-ath9k_xmit_queue_cleanup.patch686
1 files changed, 686 insertions, 0 deletions
diff --git a/package/mac80211/patches/572-ath9k_xmit_queue_cleanup.patch b/package/mac80211/patches/572-ath9k_xmit_queue_cleanup.patch
new file mode 100644
index 0000000000..522c1ef969
--- /dev/null
+++ b/package/mac80211/patches/572-ath9k_xmit_queue_cleanup.patch
@@ -0,0 +1,686 @@
+--- a/drivers/net/wireless/ath/ath9k/ath9k.h
++++ b/drivers/net/wireless/ath/ath9k/ath9k.h
+@@ -195,7 +195,6 @@ enum ATH_AGGR_STATUS {
+
+ #define ATH_TXFIFO_DEPTH 8
+ struct ath_txq {
+- int axq_class;
+ u32 axq_qnum;
+ u32 *axq_link;
+ struct list_head axq_q;
+@@ -208,11 +207,12 @@ struct ath_txq {
+ struct list_head txq_fifo_pending;
+ u8 txq_headidx;
+ u8 txq_tailidx;
++ int pending_frames;
+ };
+
+ struct ath_atx_ac {
++ struct ath_txq *txq;
+ int sched;
+- int qnum;
+ struct list_head list;
+ struct list_head tid_q;
+ };
+@@ -290,12 +290,11 @@ struct ath_tx_control {
+ struct ath_tx {
+ u16 seq_no;
+ u32 txqsetup;
+- int hwq_map[WME_NUM_AC];
+ spinlock_t txbuflock;
+ struct list_head txbuf;
+ struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
+ struct ath_descdma txdma;
+- int pending_frames[WME_NUM_AC];
++ struct ath_txq *txq_map[WME_NUM_AC];
+ };
+
+ struct ath_rx_edma {
+@@ -325,7 +324,6 @@ void ath_rx_cleanup(struct ath_softc *sc
+ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
+ struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
+ void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
+-int ath_tx_setup(struct ath_softc *sc, int haltype);
+ void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx);
+ void ath_draintxq(struct ath_softc *sc,
+ struct ath_txq *txq, bool retry_tx);
+@@ -665,7 +663,6 @@ struct ath_wiphy {
+
+ void ath9k_tasklet(unsigned long data);
+ int ath_reset(struct ath_softc *sc, bool retry_tx);
+-int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc);
+ int ath_cabq_update(struct ath_softc *);
+
+ static inline void ath_read_cachesize(struct ath_common *common, int *csz)
+--- a/drivers/net/wireless/ath/ath9k/beacon.c
++++ b/drivers/net/wireless/ath/ath9k/beacon.c
+@@ -28,7 +28,7 @@ int ath_beaconq_config(struct ath_softc
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ath9k_tx_queue_info qi, qi_be;
+- int qnum;
++ struct ath_txq *txq;
+
+ ath9k_hw_get_txq_props(ah, sc->beacon.beaconq, &qi);
+ if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) {
+@@ -38,8 +38,8 @@ int ath_beaconq_config(struct ath_softc
+ qi.tqi_cwmax = 0;
+ } else {
+ /* Adhoc mode; important thing is to use 2x cwmin. */
+- qnum = sc->tx.hwq_map[WME_AC_BE];
+- ath9k_hw_get_txq_props(ah, qnum, &qi_be);
++ txq = sc->tx.txq_map[WME_AC_BE];
++ ath9k_hw_get_txq_props(ah, txq->axq_qnum, &qi_be);
+ qi.tqi_aifs = qi_be.tqi_aifs;
+ qi.tqi_cwmin = 4*qi_be.tqi_cwmin;
+ qi.tqi_cwmax = qi_be.tqi_cwmax;
+--- a/drivers/net/wireless/ath/ath9k/common.h
++++ b/drivers/net/wireless/ath/ath9k/common.h
+@@ -31,10 +31,11 @@
+ #define WME_MAX_BA WME_BA_BMP_SIZE
+ #define ATH_TID_MAX_BUFS (2 * WME_MAX_BA)
+
+-#define WME_AC_BE 0
+-#define WME_AC_BK 1
+-#define WME_AC_VI 2
+-#define WME_AC_VO 3
++/* These must match mac80211 skb queue mapping numbers */
++#define WME_AC_VO 0
++#define WME_AC_VI 1
++#define WME_AC_BE 2
++#define WME_AC_BK 3
+ #define WME_NUM_AC 4
+
+ #define ATH_RSSI_DUMMY_MARKER 0x127
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -331,7 +331,7 @@ void ath_paprd_calibrate(struct work_str
+ struct ath_tx_control txctl;
+ struct ath9k_hw_cal_data *caldata = ah->caldata;
+ struct ath_common *common = ath9k_hw_common(ah);
+- int qnum, ftype;
++ int ftype;
+ int chain_ok = 0;
+ int chain;
+ int len = 1800;
+@@ -358,8 +358,7 @@ void ath_paprd_calibrate(struct work_str
+ memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN);
+
+ memset(&txctl, 0, sizeof(txctl));
+- qnum = sc->tx.hwq_map[WME_AC_BE];
+- txctl.txq = &sc->tx.txq[qnum];
++ txctl.txq = sc->tx.txq_map[WME_AC_BE];
+
+ ath9k_ps_wakeup(sc);
+ ar9003_paprd_init_table(ah);
+@@ -1025,56 +1024,6 @@ int ath_reset(struct ath_softc *sc, bool
+ return r;
+ }
+
+-static int ath_get_hal_qnum(u16 queue, struct ath_softc *sc)
+-{
+- int qnum;
+-
+- switch (queue) {
+- case 0:
+- qnum = sc->tx.hwq_map[WME_AC_VO];
+- break;
+- case 1:
+- qnum = sc->tx.hwq_map[WME_AC_VI];
+- break;
+- case 2:
+- qnum = sc->tx.hwq_map[WME_AC_BE];
+- break;
+- case 3:
+- qnum = sc->tx.hwq_map[WME_AC_BK];
+- break;
+- default:
+- qnum = sc->tx.hwq_map[WME_AC_BE];
+- break;
+- }
+-
+- return qnum;
+-}
+-
+-int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc)
+-{
+- int qnum;
+-
+- switch (queue) {
+- case WME_AC_VO:
+- qnum = 0;
+- break;
+- case WME_AC_VI:
+- qnum = 1;
+- break;
+- case WME_AC_BE:
+- qnum = 2;
+- break;
+- case WME_AC_BK:
+- qnum = 3;
+- break;
+- default:
+- qnum = -1;
+- break;
+- }
+-
+- return qnum;
+-}
+-
+ /* XXX: Remove me once we don't depend on ath9k_channel for all
+ * this redundant data */
+ void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw,
+@@ -1244,7 +1193,6 @@ static int ath9k_tx(struct ieee80211_hw
+ struct ath_tx_control txctl;
+ int padpos, padsize;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+- int qnum;
+
+ if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) {
+ ath_print(common, ATH_DBG_XMIT,
+@@ -1317,8 +1265,7 @@ static int ath9k_tx(struct ieee80211_hw
+ memmove(skb->data, skb->data + padsize, padpos);
+ }
+
+- qnum = ath_get_hal_qnum(skb_get_queue_mapping(skb), sc);
+- txctl.txq = &sc->tx.txq[qnum];
++ txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)];
+
+ ath_print(common, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb);
+
+@@ -1802,12 +1749,15 @@ static int ath9k_conf_tx(struct ieee8021
+ struct ath_wiphy *aphy = hw->priv;
+ struct ath_softc *sc = aphy->sc;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
++ struct ath_txq *txq;
+ struct ath9k_tx_queue_info qi;
+- int ret = 0, qnum;
++ int ret = 0;
+
+ if (queue >= WME_NUM_AC)
+ return 0;
+
++ txq = sc->tx.txq_map[queue];
++
+ mutex_lock(&sc->mutex);
+
+ memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
+@@ -1816,20 +1766,19 @@ static int ath9k_conf_tx(struct ieee8021
+ qi.tqi_cwmin = params->cw_min;
+ qi.tqi_cwmax = params->cw_max;
+ qi.tqi_burstTime = params->txop;
+- qnum = ath_get_hal_qnum(queue, sc);
+
+ ath_print(common, ATH_DBG_CONFIG,
+ "Configure tx [queue/halq] [%d/%d], "
+ "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
+- queue, qnum, params->aifs, params->cw_min,
++ queue, txq->axq_qnum, params->aifs, params->cw_min,
+ params->cw_max, params->txop);
+
+- ret = ath_txq_update(sc, qnum, &qi);
++ ret = ath_txq_update(sc, txq->axq_qnum, &qi);
+ if (ret)
+ ath_print(common, ATH_DBG_FATAL, "TXQ Update failed\n");
+
+ if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC)
+- if ((qnum == sc->tx.hwq_map[WME_AC_BE]) && !ret)
++ if (queue == WME_AC_BE && !ret)
+ ath_beaconq_config(sc);
+
+ mutex_unlock(&sc->mutex);
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -124,7 +124,7 @@ static void ath_tx_queue_tid(struct ath_
+
+ static void ath_tx_resume_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
+ {
+- struct ath_txq *txq = &sc->tx.txq[tid->ac->qnum];
++ struct ath_txq *txq = tid->ac->txq;
+
+ WARN_ON(!tid->paused);
+
+@@ -142,7 +142,7 @@ unlock:
+
+ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
+ {
+- struct ath_txq *txq = &sc->tx.txq[tid->ac->qnum];
++ struct ath_txq *txq = tid->ac->txq;
+ struct ath_buf *bf;
+ struct list_head bf_head;
+ struct ath_tx_status ts;
+@@ -817,7 +817,7 @@ void ath_tx_aggr_stop(struct ath_softc *
+ {
+ struct ath_node *an = (struct ath_node *)sta->drv_priv;
+ struct ath_atx_tid *txtid = ATH_AN_2_TID(an, tid);
+- struct ath_txq *txq = &sc->tx.txq[txtid->ac->qnum];
++ struct ath_txq *txq = txtid->ac->txq;
+
+ if (txtid->state & AGGR_CLEANUP)
+ return;
+@@ -888,10 +888,16 @@ struct ath_txq *ath_txq_setup(struct ath
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ath9k_tx_queue_info qi;
++ static const int subtype_txq_to_hwq[] = {
++ [WME_AC_BE] = ATH_TXQ_AC_BE,
++ [WME_AC_BK] = ATH_TXQ_AC_BK,
++ [WME_AC_VI] = ATH_TXQ_AC_VI,
++ [WME_AC_VO] = ATH_TXQ_AC_VO,
++ };
+ int qnum, i;
+
+ memset(&qi, 0, sizeof(qi));
+- qi.tqi_subtype = subtype;
++ qi.tqi_subtype = subtype_txq_to_hwq[subtype];
+ qi.tqi_aifs = ATH9K_TXQ_USEDEFAULT;
+ qi.tqi_cwmin = ATH9K_TXQ_USEDEFAULT;
+ qi.tqi_cwmax = ATH9K_TXQ_USEDEFAULT;
+@@ -940,7 +946,6 @@ struct ath_txq *ath_txq_setup(struct ath
+ if (!ATH_TXQ_SETUP(sc, qnum)) {
+ struct ath_txq *txq = &sc->tx.txq[qnum];
+
+- txq->axq_class = subtype;
+ txq->axq_qnum = qnum;
+ txq->axq_link = NULL;
+ INIT_LIST_HEAD(&txq->axq_q);
+@@ -1210,24 +1215,6 @@ void ath_txq_schedule(struct ath_softc *
+ }
+ }
+
+-int ath_tx_setup(struct ath_softc *sc, int haltype)
+-{
+- struct ath_txq *txq;
+-
+- if (haltype >= ARRAY_SIZE(sc->tx.hwq_map)) {
+- ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL,
+- "HAL AC %u out of range, max %zu!\n",
+- haltype, ARRAY_SIZE(sc->tx.hwq_map));
+- return 0;
+- }
+- txq = ath_txq_setup(sc, ATH9K_TX_QUEUE_DATA, haltype);
+- if (txq != NULL) {
+- sc->tx.hwq_map[haltype] = txq->axq_qnum;
+- return 1;
+- } else
+- return 0;
+-}
+-
+ /***********/
+ /* TX, DMA */
+ /***********/
+@@ -1747,6 +1734,7 @@ int ath_tx_start(struct ieee80211_hw *hw
+ return -1;
+ }
+
++ q = skb_get_queue_mapping(skb);
+ r = ath_tx_setup_buffer(hw, bf, skb, txctl);
+ if (unlikely(r)) {
+ ath_print(common, ATH_DBG_FATAL, "TX mem alloc failure\n");
+@@ -1756,8 +1744,9 @@ int ath_tx_start(struct ieee80211_hw *hw
+ * we will at least have to run TX completionon one buffer
+ * on the queue */
+ spin_lock_bh(&txq->axq_lock);
+- if (!txq->stopped && txq->axq_depth > 1) {
+- ath_mac80211_stop_queue(sc, skb_get_queue_mapping(skb));
++ if (txq == sc->tx.txq_map[q] && !txq->stopped &&
++ txq->axq_depth > 1) {
++ ath_mac80211_stop_queue(sc, q);
+ txq->stopped = 1;
+ }
+ spin_unlock_bh(&txq->axq_lock);
+@@ -1767,13 +1756,10 @@ int ath_tx_start(struct ieee80211_hw *hw
+ return r;
+ }
+
+- q = skb_get_queue_mapping(skb);
+- if (q >= 4)
+- q = 0;
+-
+ spin_lock_bh(&txq->axq_lock);
+- if (++sc->tx.pending_frames[q] > ATH_MAX_QDEPTH && !txq->stopped) {
+- ath_mac80211_stop_queue(sc, skb_get_queue_mapping(skb));
++ if (txq == sc->tx.txq_map[q] &&
++ ++txq->pending_frames > ATH_MAX_QDEPTH && !txq->stopped) {
++ ath_mac80211_stop_queue(sc, q);
+ txq->stopped = 1;
+ }
+ spin_unlock_bh(&txq->axq_lock);
+@@ -1887,12 +1873,12 @@ static void ath_tx_complete(struct ath_s
+ if (unlikely(tx_info->pad[0] & ATH_TX_INFO_FRAME_TYPE_INTERNAL))
+ ath9k_tx_status(hw, skb);
+ else {
+- q = skb_get_queue_mapping(skb);
+- if (q >= 4)
+- q = 0;
++ struct ath_txq *txq;
+
+- if (--sc->tx.pending_frames[q] < 0)
+- sc->tx.pending_frames[q] = 0;
++ q = skb_get_queue_mapping(skb);
++ txq = sc->tx.txq_map[q];
++ if (--txq->pending_frames < 0)
++ txq->pending_frames = 0;
+
+ ieee80211_tx_status(hw, skb);
+ }
+@@ -1927,7 +1913,7 @@ static void ath_tx_complete_buf(struct a
+ else
+ complete(&sc->paprd_complete);
+ } else {
+- ath_debug_stat_tx(sc, txq, bf, ts);
++ ath_debug_stat_tx(sc, bf, ts);
+ ath_tx_complete(sc, skb, bf->aphy, tx_flags);
+ }
+ /* At this point, skb (bf->bf_mpdu) is consumed...make sure we don't
+@@ -2018,16 +2004,13 @@ static void ath_tx_rc_status(struct ath_
+ tx_info->status.rates[tx_rateindex].count = ts->ts_longretry + 1;
+ }
+
+-static void ath_wake_mac80211_queue(struct ath_softc *sc, struct ath_txq *txq)
++static void ath_wake_mac80211_queue(struct ath_softc *sc, int qnum)
+ {
+- int qnum;
+-
+- qnum = ath_get_mac80211_qnum(txq->axq_class, sc);
+- if (qnum == -1)
+- return;
++ struct ath_txq *txq;
+
++ txq = sc->tx.txq_map[qnum];
+ spin_lock_bh(&txq->axq_lock);
+- if (txq->stopped && sc->tx.pending_frames[qnum] < ATH_MAX_QDEPTH) {
++ if (txq->stopped && txq->pending_frames < ATH_MAX_QDEPTH) {
+ if (ath_mac80211_start_queue(sc, qnum))
+ txq->stopped = 0;
+ }
+@@ -2044,6 +2027,7 @@ static void ath_tx_processq(struct ath_s
+ struct ath_tx_status ts;
+ int txok;
+ int status;
++ int qnum;
+
+ ath_print(common, ATH_DBG_QUEUE, "tx queue %d (%x), link %p\n",
+ txq->axq_qnum, ath9k_hw_gettxbuf(sc->sc_ah, txq->axq_qnum),
+@@ -2119,12 +2103,15 @@ static void ath_tx_processq(struct ath_s
+ ath_tx_rc_status(bf, &ts, txok ? 0 : 1, txok, true);
+ }
+
++ qnum = skb_get_queue_mapping(bf->bf_mpdu);
++
+ if (bf_isampdu(bf))
+ ath_tx_complete_aggr(sc, txq, bf, &bf_head, &ts, txok);
+ else
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, txok, 0);
+
+- ath_wake_mac80211_queue(sc, txq);
++ if (txq == sc->tx.txq_map[qnum])
++ ath_wake_mac80211_queue(sc, qnum);
+
+ spin_lock_bh(&txq->axq_lock);
+ if (sc->sc_flags & SC_OP_TXAGGR)
+@@ -2194,6 +2181,7 @@ void ath_tx_edma_tasklet(struct ath_soft
+ struct list_head bf_head;
+ int status;
+ int txok;
++ int qnum;
+
+ for (;;) {
+ status = ath9k_hw_txprocdesc(ah, NULL, (void *)&txs);
+@@ -2237,13 +2225,16 @@ void ath_tx_edma_tasklet(struct ath_soft
+ ath_tx_rc_status(bf, &txs, txok ? 0 : 1, txok, true);
+ }
+
++ qnum = skb_get_queue_mapping(bf->bf_mpdu);
++
+ if (bf_isampdu(bf))
+ ath_tx_complete_aggr(sc, txq, bf, &bf_head, &txs, txok);
+ else
+ ath_tx_complete_buf(sc, bf, txq, &bf_head,
+ &txs, txok, 0);
+
+- ath_wake_mac80211_queue(sc, txq);
++ if (txq == sc->tx.txq_map[qnum])
++ ath_wake_mac80211_queue(sc, qnum);
+
+ spin_lock_bh(&txq->axq_lock);
+ if (!list_empty(&txq->txq_fifo_pending)) {
+@@ -2375,7 +2366,7 @@ void ath_tx_node_init(struct ath_softc *
+ for (acno = 0, ac = &an->ac[acno];
+ acno < WME_NUM_AC; acno++, ac++) {
+ ac->sched = false;
+- ac->qnum = sc->tx.hwq_map[acno];
++ ac->txq = sc->tx.txq_map[acno];
+ INIT_LIST_HEAD(&ac->tid_q);
+ }
+ }
+@@ -2385,17 +2376,13 @@ void ath_tx_node_cleanup(struct ath_soft
+ struct ath_atx_ac *ac;
+ struct ath_atx_tid *tid;
+ struct ath_txq *txq;
+- int i, tidno;
++ int tidno;
+
+ for (tidno = 0, tid = &an->tid[tidno];
+ tidno < WME_NUM_TID; tidno++, tid++) {
+- i = tid->ac->qnum;
+-
+- if (!ATH_TXQ_SETUP(sc, i))
+- continue;
+
+- txq = &sc->tx.txq[i];
+ ac = tid->ac;
++ txq = ac->txq;
+
+ spin_lock_bh(&txq->axq_lock);
+
+--- a/drivers/net/wireless/ath/ath9k/hw.h
++++ b/drivers/net/wireless/ath/ath9k/hw.h
+@@ -157,6 +157,13 @@
+ #define PAPRD_GAIN_TABLE_ENTRIES 32
+ #define PAPRD_TABLE_SZ 24
+
++enum ath_hw_txq_subtype {
++ ATH_TXQ_AC_BE = 0,
++ ATH_TXQ_AC_BK = 1,
++ ATH_TXQ_AC_VI = 2,
++ ATH_TXQ_AC_VO = 3,
++};
++
+ enum ath_ini_subsys {
+ ATH_INI_PRE = 0,
+ ATH_INI_CORE,
+--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
++++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+@@ -20,8 +20,15 @@
+ /* TX */
+ /******/
+
++static const int subtype_txq_to_hwq[] = {
++ [WME_AC_BE] = ATH_TXQ_AC_BE,
++ [WME_AC_BK] = ATH_TXQ_AC_BK,
++ [WME_AC_VI] = ATH_TXQ_AC_VI,
++ [WME_AC_VO] = ATH_TXQ_AC_VO,
++};
++
+ #define ATH9K_HTC_INIT_TXQ(subtype) do { \
+- qi.tqi_subtype = subtype; \
++ qi.tqi_subtype = subtype_txq_to_hwq[subtype]; \
+ qi.tqi_aifs = ATH9K_TXQ_USEDEFAULT; \
+ qi.tqi_cwmin = ATH9K_TXQ_USEDEFAULT; \
+ qi.tqi_cwmax = ATH9K_TXQ_USEDEFAULT; \
+--- a/drivers/net/wireless/ath/ath9k/init.c
++++ b/drivers/net/wireless/ath/ath9k/init.c
+@@ -396,7 +396,8 @@ static void ath9k_init_crypto(struct ath
+
+ static int ath9k_init_btcoex(struct ath_softc *sc)
+ {
+- int r, qnum;
++ struct ath_txq *txq;
++ int r;
+
+ switch (sc->sc_ah->btcoex_hw.scheme) {
+ case ATH_BTCOEX_CFG_NONE:
+@@ -409,8 +410,8 @@ static int ath9k_init_btcoex(struct ath_
+ r = ath_init_btcoex_timer(sc);
+ if (r)
+ return -1;
+- qnum = sc->tx.hwq_map[WME_AC_BE];
+- ath9k_hw_init_btcoex_hw(sc->sc_ah, qnum);
++ txq = sc->tx.txq_map[WME_AC_BE];
++ ath9k_hw_init_btcoex_hw(sc->sc_ah, txq->axq_qnum);
+ sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
+ break;
+ default:
+@@ -423,59 +424,18 @@ static int ath9k_init_btcoex(struct ath_
+
+ static int ath9k_init_queues(struct ath_softc *sc)
+ {
+- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ int i = 0;
+
+- for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++)
+- sc->tx.hwq_map[i] = -1;
+-
+ sc->beacon.beaconq = ath9k_hw_beaconq_setup(sc->sc_ah);
+- if (sc->beacon.beaconq == -1) {
+- ath_print(common, ATH_DBG_FATAL,
+- "Unable to setup a beacon xmit queue\n");
+- goto err;
+- }
+-
+ sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0);
+- if (sc->beacon.cabq == NULL) {
+- ath_print(common, ATH_DBG_FATAL,
+- "Unable to setup CAB xmit queue\n");
+- goto err;
+- }
+
+ sc->config.cabqReadytime = ATH_CABQ_READY_TIME;
+ ath_cabq_update(sc);
+
+- if (!ath_tx_setup(sc, WME_AC_BK)) {
+- ath_print(common, ATH_DBG_FATAL,
+- "Unable to setup xmit queue for BK traffic\n");
+- goto err;
+- }
+-
+- if (!ath_tx_setup(sc, WME_AC_BE)) {
+- ath_print(common, ATH_DBG_FATAL,
+- "Unable to setup xmit queue for BE traffic\n");
+- goto err;
+- }
+- if (!ath_tx_setup(sc, WME_AC_VI)) {
+- ath_print(common, ATH_DBG_FATAL,
+- "Unable to setup xmit queue for VI traffic\n");
+- goto err;
+- }
+- if (!ath_tx_setup(sc, WME_AC_VO)) {
+- ath_print(common, ATH_DBG_FATAL,
+- "Unable to setup xmit queue for VO traffic\n");
+- goto err;
+- }
++ for (i = 0; i < WME_NUM_AC; i++)
++ sc->tx.txq_map[i] = ath_txq_setup(sc, ATH9K_TX_QUEUE_DATA, i);
+
+ return 0;
+-
+-err:
+- for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
+- if (ATH_TXQ_SETUP(sc, i))
+- ath_tx_cleanupq(sc, &sc->tx.txq[i]);
+-
+- return -EIO;
+ }
+
+ static int ath9k_init_channels_rates(struct ath_softc *sc)
+--- a/drivers/net/wireless/ath/ath9k/virtual.c
++++ b/drivers/net/wireless/ath/ath9k/virtual.c
+@@ -187,7 +187,7 @@ static int ath9k_send_nullfunc(struct at
+ info->control.rates[1].idx = -1;
+
+ memset(&txctl, 0, sizeof(struct ath_tx_control));
+- txctl.txq = &sc->tx.txq[sc->tx.hwq_map[WME_AC_VO]];
++ txctl.txq = sc->tx.txq_map[WME_AC_VO];
+ txctl.frame_type = ps ? ATH9K_IFT_PAUSE : ATH9K_IFT_UNPAUSE;
+
+ if (ath_tx_start(aphy->hw, skb, &txctl) != 0)
+--- a/drivers/net/wireless/ath/ath9k/debug.c
++++ b/drivers/net/wireless/ath/ath9k/debug.c
+@@ -579,10 +579,10 @@ static const struct file_operations fops
+ do { \
+ len += snprintf(buf + len, size - len, \
+ "%s%13u%11u%10u%10u\n", str, \
+- sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BE]].elem, \
+- sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BK]].elem, \
+- sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VI]].elem, \
+- sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VO]].elem); \
++ sc->debug.stats.txstats[WME_AC_BE].elem, \
++ sc->debug.stats.txstats[WME_AC_BK].elem, \
++ sc->debug.stats.txstats[WME_AC_VI].elem, \
++ sc->debug.stats.txstats[WME_AC_VO].elem); \
+ } while(0)
+
+ static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
+@@ -624,33 +624,35 @@ static ssize_t read_file_xmit(struct fil
+ return retval;
+ }
+
+-void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
+- struct ath_buf *bf, struct ath_tx_status *ts)
++void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
++ struct ath_tx_status *ts)
+ {
+- TX_STAT_INC(txq->axq_qnum, tx_pkts_all);
+- sc->debug.stats.txstats[txq->axq_qnum].tx_bytes_all += bf->bf_mpdu->len;
++ int qnum = skb_get_queue_mapping(bf->bf_mpdu);
++
++ TX_STAT_INC(qnum, tx_pkts_all);
++ sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
+
+ if (bf_isampdu(bf)) {
+ if (bf_isxretried(bf))
+- TX_STAT_INC(txq->axq_qnum, a_xretries);
++ TX_STAT_INC(qnum, a_xretries);
+ else
+- TX_STAT_INC(txq->axq_qnum, a_completed);
++ TX_STAT_INC(qnum, a_completed);
+ } else {
+- TX_STAT_INC(txq->axq_qnum, completed);
++ TX_STAT_INC(qnum, completed);
+ }
+
+ if (ts->ts_status & ATH9K_TXERR_FIFO)
+- TX_STAT_INC(txq->axq_qnum, fifo_underrun);
++ TX_STAT_INC(qnum, fifo_underrun);
+ if (ts->ts_status & ATH9K_TXERR_XTXOP)
+- TX_STAT_INC(txq->axq_qnum, xtxop);
++ TX_STAT_INC(qnum, xtxop);
+ if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
+- TX_STAT_INC(txq->axq_qnum, timer_exp);
++ TX_STAT_INC(qnum, timer_exp);
+ if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
+- TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
++ TX_STAT_INC(qnum, desc_cfg_err);
+ if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
+- TX_STAT_INC(txq->axq_qnum, data_underrun);
++ TX_STAT_INC(qnum, data_underrun);
+ if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
+- TX_STAT_INC(txq->axq_qnum, delim_underrun);
++ TX_STAT_INC(qnum, delim_underrun);
+ }
+
+ static const struct file_operations fops_xmit = {
+--- a/drivers/net/wireless/ath/ath9k/debug.h
++++ b/drivers/net/wireless/ath/ath9k/debug.h
+@@ -169,8 +169,8 @@ void ath9k_exit_debug(struct ath_hw *ah)
+ int ath9k_debug_create_root(void);
+ void ath9k_debug_remove_root(void);
+ void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
+-void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
+- struct ath_buf *bf, struct ath_tx_status *ts);
++void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
++ struct ath_tx_status *ts);
+ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs);
+
+ #else