package/mac80211/patches/572-ath9k_xmit_queue_cleanup.patch

   1 --- a/drivers/net/wireless/ath/ath9k/ath9k.h
   2 +++ b/drivers/net/wireless/ath/ath9k/ath9k.h
   3 @@ -195,7 +195,6 @@ enum ATH_AGGR_STATUS {
   4
   5  #define ATH_TXFIFO_DEPTH 8
   6  struct ath_txq {
   7 -       int axq_class;
   8         u32 axq_qnum;
   9         u32 *axq_link;
  10         struct list_head axq_q;
  11 @@ -208,11 +207,12 @@ struct ath_txq {
  12         struct list_head txq_fifo_pending;
  13         u8 txq_headidx;
  14         u8 txq_tailidx;
  15 +       int pending_frames;
  16  };
  17
  18  struct ath_atx_ac {
  19 +       struct ath_txq *txq;
  20         int sched;
  21 -       int qnum;
  22         struct list_head list;
  23         struct list_head tid_q;
  24  };
  25 @@ -290,12 +290,11 @@ struct ath_tx_control {
  26  struct ath_tx {
  27         u16 seq_no;
  28         u32 txqsetup;
  29 -       int hwq_map[WME_NUM_AC];
  30         spinlock_t txbuflock;
  31         struct list_head txbuf;
  32         struct ath_txq txq[ATH9K_NUM_TX_QUEUES];
  33         struct ath_descdma txdma;
  34 -       int pending_frames[WME_NUM_AC];
  35 +       struct ath_txq *txq_map[WME_NUM_AC];
  36  };
  37
  38  struct ath_rx_edma {
  39 @@ -325,7 +324,6 @@ void ath_rx_cleanup(struct ath_softc *sc
  40  int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp);
  41  struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype);
  42  void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq);
  43 -int ath_tx_setup(struct ath_softc *sc, int haltype);
  44  void ath_drain_all_txq(struct ath_softc *sc, bool retry_tx);
  45  void ath_draintxq(struct ath_softc *sc,
  46                      struct ath_txq *txq, bool retry_tx);
  47 @@ -665,7 +663,6 @@ struct ath_wiphy {
  48
  49  void ath9k_tasklet(unsigned long data);
  50  int ath_reset(struct ath_softc *sc, bool retry_tx);
  51 -int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc);
  52  int ath_cabq_update(struct ath_softc *);
  53
  54  static inline void ath_read_cachesize(struct ath_common *common, int *csz)
  55 --- a/drivers/net/wireless/ath/ath9k/beacon.c
  56 +++ b/drivers/net/wireless/ath/ath9k/beacon.c
  57 @@ -28,7 +28,7 @@ int ath_beaconq_config(struct ath_softc
  58         struct ath_hw *ah = sc->sc_ah;
  59         struct ath_common *common = ath9k_hw_common(ah);
  60         struct ath9k_tx_queue_info qi, qi_be;
  61 -       int qnum;
  62 +       struct ath_txq *txq;
  63
  64         ath9k_hw_get_txq_props(ah, sc->beacon.beaconq, &qi);
  65         if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) {
  66 @@ -38,8 +38,8 @@ int ath_beaconq_config(struct ath_softc
  67                 qi.tqi_cwmax = 0;
  68         } else {
  69                 /* Adhoc mode; important thing is to use 2x cwmin. */
  70 -               qnum = sc->tx.hwq_map[WME_AC_BE];
  71 -               ath9k_hw_get_txq_props(ah, qnum, &qi_be);
  72 +               txq = sc->tx.txq_map[WME_AC_BE];
  73 +               ath9k_hw_get_txq_props(ah, txq->axq_qnum, &qi_be);
  74                 qi.tqi_aifs = qi_be.tqi_aifs;
  75                 qi.tqi_cwmin = 4*qi_be.tqi_cwmin;
  76                 qi.tqi_cwmax = qi_be.tqi_cwmax;
  77 --- a/drivers/net/wireless/ath/ath9k/common.h
  78 +++ b/drivers/net/wireless/ath/ath9k/common.h
  79 @@ -31,10 +31,11 @@
  80  #define WME_MAX_BA              WME_BA_BMP_SIZE
  81  #define ATH_TID_MAX_BUFS        (2 * WME_MAX_BA)
  82
  83 -#define WME_AC_BE   0
  84 -#define WME_AC_BK   1
  85 -#define WME_AC_VI   2
  86 -#define WME_AC_VO   3
  87 +/* These must match mac80211 skb queue mapping numbers */
  88 +#define WME_AC_VO   0
  89 +#define WME_AC_VI   1
  90 +#define WME_AC_BE   2
  91 +#define WME_AC_BK   3
  92  #define WME_NUM_AC  4
  93
  94  #define ATH_RSSI_DUMMY_MARKER   0x127
  95 --- a/drivers/net/wireless/ath/ath9k/main.c
  96 +++ b/drivers/net/wireless/ath/ath9k/main.c
  97 @@ -331,7 +331,7 @@ void ath_paprd_calibrate(struct work_str
  98         struct ath_tx_control txctl;
  99         struct ath9k_hw_cal_data *caldata = ah->caldata;
 100         struct ath_common *common = ath9k_hw_common(ah);
 101 -       int qnum, ftype;
 102 +       int ftype;
 103         int chain_ok = 0;
 104         int chain;
 105         int len = 1800;
 106 @@ -358,8 +358,7 @@ void ath_paprd_calibrate(struct work_str
 107         memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN);
 108
 109         memset(&txctl, 0, sizeof(txctl));
 110 -       qnum = sc->tx.hwq_map[WME_AC_BE];
 111 -       txctl.txq = &sc->tx.txq[qnum];
 112 +       txctl.txq = sc->tx.txq_map[WME_AC_BE];
 113
 114         ath9k_ps_wakeup(sc);
 115         ar9003_paprd_init_table(ah);
 116 @@ -1025,56 +1024,6 @@ int ath_reset(struct ath_softc *sc, bool
 117         return r;
 118  }
 119
 120 -static int ath_get_hal_qnum(u16 queue, struct ath_softc *sc)
 121 -{
 122 -       int qnum;
 123 -
 124 -       switch (queue) {
 125 -       case 0:
 126 -               qnum = sc->tx.hwq_map[WME_AC_VO];
 127 -               break;
 128 -       case 1:
 129 -               qnum = sc->tx.hwq_map[WME_AC_VI];
 130 -               break;
 131 -       case 2:
 132 -               qnum = sc->tx.hwq_map[WME_AC_BE];
 133 -               break;
 134 -       case 3:
 135 -               qnum = sc->tx.hwq_map[WME_AC_BK];
 136 -               break;
 137 -       default:
 138 -               qnum = sc->tx.hwq_map[WME_AC_BE];
 139 -               break;
 140 -       }
 141 -
 142 -       return qnum;
 143 -}
 144 -
 145 -int ath_get_mac80211_qnum(u32 queue, struct ath_softc *sc)
 146 -{
 147 -       int qnum;
 148 -
 149 -       switch (queue) {
 150 -       case WME_AC_VO:
 151 -               qnum = 0;
 152 -               break;
 153 -       case WME_AC_VI:
 154 -               qnum = 1;
 155 -               break;
 156 -       case WME_AC_BE:
 157 -               qnum = 2;
 158 -               break;
 159 -       case WME_AC_BK:
 160 -               qnum = 3;
 161 -               break;
 162 -       default:
 163 -               qnum = -1;
 164 -               break;
 165 -       }
 166 -
 167 -       return qnum;
 168 -}
 169 -
 170  /* XXX: Remove me once we don't depend on ath9k_channel for all
 171   * this redundant data */
 172  void ath9k_update_ichannel(struct ath_softc *sc, struct ieee80211_hw *hw,
 173 @@ -1244,7 +1193,6 @@ static int ath9k_tx(struct ieee80211_hw
 174         struct ath_tx_control txctl;
 175         int padpos, padsize;
 176         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 177 -       int qnum;
 178
 179         if (aphy->state != ATH_WIPHY_ACTIVE && aphy->state != ATH_WIPHY_SCAN) {
 180                 ath_print(common, ATH_DBG_XMIT,
 181 @@ -1317,8 +1265,7 @@ static int ath9k_tx(struct ieee80211_hw
 182                 memmove(skb->data, skb->data + padsize, padpos);
 183         }
 184
 185 -       qnum = ath_get_hal_qnum(skb_get_queue_mapping(skb), sc);
 186 -       txctl.txq = &sc->tx.txq[qnum];
 187 +       txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)];
 188
 189         ath_print(common, ATH_DBG_XMIT, "transmitting packet, skb: %p\n", skb);
 190
 191 @@ -1802,12 +1749,15 @@ static int ath9k_conf_tx(struct ieee8021
 192         struct ath_wiphy *aphy = hw->priv;
 193         struct ath_softc *sc = aphy->sc;
 194         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 195 +       struct ath_txq *txq;
 196         struct ath9k_tx_queue_info qi;
 197 -       int ret = 0, qnum;
 198 +       int ret = 0;
 199
 200         if (queue >= WME_NUM_AC)
 201                 return 0;
 202
 203 +       txq = sc->tx.txq_map[queue];
 204 +
 205         mutex_lock(&sc->mutex);
 206
 207         memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
 208 @@ -1816,20 +1766,19 @@ static int ath9k_conf_tx(struct ieee8021
 209         qi.tqi_cwmin = params->cw_min;
 210         qi.tqi_cwmax = params->cw_max;
 211         qi.tqi_burstTime = params->txop;
 212 -       qnum = ath_get_hal_qnum(queue, sc);
 213
 214         ath_print(common, ATH_DBG_CONFIG,
 215                   "Configure tx [queue/halq] [%d/%d],  "
 216                   "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
 217 -                 queue, qnum, params->aifs, params->cw_min,
 218 +                 queue, txq->axq_qnum, params->aifs, params->cw_min,
 219                   params->cw_max, params->txop);
 220
 221 -       ret = ath_txq_update(sc, qnum, &qi);
 222 +       ret = ath_txq_update(sc, txq->axq_qnum, &qi);
 223         if (ret)
 224                 ath_print(common, ATH_DBG_FATAL, "TXQ Update failed\n");
 225
 226         if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC)
 227 -               if ((qnum == sc->tx.hwq_map[WME_AC_BE]) && !ret)
 228 +               if (queue == WME_AC_BE && !ret)
 229                         ath_beaconq_config(sc);
 230
 231         mutex_unlock(&sc->mutex);
 232 --- a/drivers/net/wireless/ath/ath9k/xmit.c
 233 +++ b/drivers/net/wireless/ath/ath9k/xmit.c
 234 @@ -124,7 +124,7 @@ static void ath_tx_queue_tid(struct ath_
 235
 236  static void ath_tx_resume_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
 237  {
 238 -       struct ath_txq *txq = &sc->tx.txq[tid->ac->qnum];
 239 +       struct ath_txq *txq = tid->ac->txq;
 240
 241         WARN_ON(!tid->paused);
 242
 243 @@ -142,7 +142,7 @@ unlock:
 244
 245  static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
 246  {
 247 -       struct ath_txq *txq = &sc->tx.txq[tid->ac->qnum];
 248 +       struct ath_txq *txq = tid->ac->txq;
 249         struct ath_buf *bf;
 250         struct list_head bf_head;
 251         struct ath_tx_status ts;
 252 @@ -817,7 +817,7 @@ void ath_tx_aggr_stop(struct ath_softc *
 253  {
 254         struct ath_node *an = (struct ath_node *)sta->drv_priv;
 255         struct ath_atx_tid *txtid = ATH_AN_2_TID(an, tid);
 256 -       struct ath_txq *txq = &sc->tx.txq[txtid->ac->qnum];
 257 +       struct ath_txq *txq = txtid->ac->txq;
 258
 259         if (txtid->state & AGGR_CLEANUP)
 260                 return;
 261 @@ -888,10 +888,16 @@ struct ath_txq *ath_txq_setup(struct ath
 262         struct ath_hw *ah = sc->sc_ah;
 263         struct ath_common *common = ath9k_hw_common(ah);
 264         struct ath9k_tx_queue_info qi;
 265 +       static const int subtype_txq_to_hwq[] = {
 266 +               [WME_AC_BE] = ATH_TXQ_AC_BE,
 267 +               [WME_AC_BK] = ATH_TXQ_AC_BK,
 268 +               [WME_AC_VI] = ATH_TXQ_AC_VI,
 269 +               [WME_AC_VO] = ATH_TXQ_AC_VO,
 270 +       };
 271         int qnum, i;
 272
 273         memset(&qi, 0, sizeof(qi));
 274 -       qi.tqi_subtype = subtype;
 275 +       qi.tqi_subtype = subtype_txq_to_hwq[subtype];
 276         qi.tqi_aifs = ATH9K_TXQ_USEDEFAULT;
 277         qi.tqi_cwmin = ATH9K_TXQ_USEDEFAULT;
 278         qi.tqi_cwmax = ATH9K_TXQ_USEDEFAULT;
 279 @@ -940,7 +946,6 @@ struct ath_txq *ath_txq_setup(struct ath
 280         if (!ATH_TXQ_SETUP(sc, qnum)) {
 281                 struct ath_txq *txq = &sc->tx.txq[qnum];
 282
 283 -               txq->axq_class = subtype;
 284                 txq->axq_qnum = qnum;
 285                 txq->axq_link = NULL;
 286                 INIT_LIST_HEAD(&txq->axq_q);
 287 @@ -1210,24 +1215,6 @@ void ath_txq_schedule(struct ath_softc *
 288         }
 289  }
 290
 291 -int ath_tx_setup(struct ath_softc *sc, int haltype)
 292 -{
 293 -       struct ath_txq *txq;
 294 -
 295 -       if (haltype >= ARRAY_SIZE(sc->tx.hwq_map)) {
 296 -               ath_print(ath9k_hw_common(sc->sc_ah), ATH_DBG_FATAL,
 297 -                         "HAL AC %u out of range, max %zu!\n",
 298 -                        haltype, ARRAY_SIZE(sc->tx.hwq_map));
 299 -               return 0;
 300 -       }
 301 -       txq = ath_txq_setup(sc, ATH9K_TX_QUEUE_DATA, haltype);
 302 -       if (txq != NULL) {
 303 -               sc->tx.hwq_map[haltype] = txq->axq_qnum;
 304 -               return 1;
 305 -       } else
 306 -               return 0;
 307 -}
 308 -
 309  /***********/
 310  /* TX, DMA */
 311  /***********/
 312 @@ -1708,6 +1695,7 @@ static void ath_tx_start_dma(struct ath_
 313                         goto tx_done;
 314                 }
 315
 316 +               WARN_ON(tid->ac->txq != txctl->txq);
 317                 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
 318                         /*
 319                          * Try aggregation if it's a unicast data frame
 320 @@ -1747,6 +1735,7 @@ int ath_tx_start(struct ieee80211_hw *hw
 321                 return -1;
 322         }
 323
 324 +       q = skb_get_queue_mapping(skb);
 325         r = ath_tx_setup_buffer(hw, bf, skb, txctl);
 326         if (unlikely(r)) {
 327                 ath_print(common, ATH_DBG_FATAL, "TX mem alloc failure\n");
 328 @@ -1756,8 +1745,9 @@ int ath_tx_start(struct ieee80211_hw *hw
 329                  * we will at least have to run TX completionon one buffer
 330                  * on the queue */
 331                 spin_lock_bh(&txq->axq_lock);
 332 -               if (!txq->stopped && txq->axq_depth > 1) {
 333 -                       ath_mac80211_stop_queue(sc, skb_get_queue_mapping(skb));
 334 +               if (txq == sc->tx.txq_map[q] && !txq->stopped &&
 335 +                   txq->axq_depth > 1) {
 336 +                       ath_mac80211_stop_queue(sc, q);
 337                         txq->stopped = 1;
 338                 }
 339                 spin_unlock_bh(&txq->axq_lock);
 340 @@ -1767,13 +1757,10 @@ int ath_tx_start(struct ieee80211_hw *hw
 341                 return r;
 342         }
 343
 344 -       q = skb_get_queue_mapping(skb);
 345 -       if (q >= 4)
 346 -               q = 0;
 347 -
 348         spin_lock_bh(&txq->axq_lock);
 349 -       if (++sc->tx.pending_frames[q] > ATH_MAX_QDEPTH && !txq->stopped) {
 350 -               ath_mac80211_stop_queue(sc, skb_get_queue_mapping(skb));
 351 +       if (txq == sc->tx.txq_map[q] &&
 352 +           ++txq->pending_frames > ATH_MAX_QDEPTH && !txq->stopped) {
 353 +               ath_mac80211_stop_queue(sc, q);
 354                 txq->stopped = 1;
 355         }
 356         spin_unlock_bh(&txq->axq_lock);
 357 @@ -1841,7 +1828,8 @@ exit:
 358  /*****************/
 359
 360  static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
 361 -                           struct ath_wiphy *aphy, int tx_flags)
 362 +                           struct ath_wiphy *aphy, int tx_flags,
 363 +                           struct ath_txq *txq)
 364  {
 365         struct ieee80211_hw *hw = sc->hw;
 366         struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
 367 @@ -1888,11 +1876,12 @@ static void ath_tx_complete(struct ath_s
 368                 ath9k_tx_status(hw, skb);
 369         else {
 370                 q = skb_get_queue_mapping(skb);
 371 -               if (q >= 4)
 372 -                       q = 0;
 373 -
 374 -               if (--sc->tx.pending_frames[q] < 0)
 375 -                       sc->tx.pending_frames[q] = 0;
 376 +               if (txq == sc->tx.txq_map[q]) {
 377 +                       spin_lock_bh(&txq->axq_lock);
 378 +                       if (WARN_ON(--txq->pending_frames < 0))
 379 +                               txq->pending_frames = 0;
 380 +                       spin_unlock_bh(&txq->axq_lock);
 381 +               }
 382
 383                 ieee80211_tx_status(hw, skb);
 384         }
 385 @@ -1927,8 +1916,8 @@ static void ath_tx_complete_buf(struct a
 386                 else
 387                         complete(&sc->paprd_complete);
 388         } else {
 389 -               ath_debug_stat_tx(sc, txq, bf, ts);
 390 -               ath_tx_complete(sc, skb, bf->aphy, tx_flags);
 391 +               ath_debug_stat_tx(sc, bf, ts);
 392 +               ath_tx_complete(sc, skb, bf->aphy, tx_flags, txq);
 393         }
 394         /* At this point, skb (bf->bf_mpdu) is consumed...make sure we don't
 395          * accidentally reference it later.
 396 @@ -2018,16 +2007,13 @@ static void ath_tx_rc_status(struct ath_
 397         tx_info->status.rates[tx_rateindex].count = ts->ts_longretry + 1;
 398  }
 399
 400 -static void ath_wake_mac80211_queue(struct ath_softc *sc, struct ath_txq *txq)
 401 +static void ath_wake_mac80211_queue(struct ath_softc *sc, int qnum)
 402  {
 403 -       int qnum;
 404 -
 405 -       qnum = ath_get_mac80211_qnum(txq->axq_class, sc);
 406 -       if (qnum == -1)
 407 -               return;
 408 +       struct ath_txq *txq;
 409
 410 +       txq = sc->tx.txq_map[qnum];
 411         spin_lock_bh(&txq->axq_lock);
 412 -       if (txq->stopped && sc->tx.pending_frames[qnum] < ATH_MAX_QDEPTH) {
 413 +       if (txq->stopped && txq->pending_frames < ATH_MAX_QDEPTH) {
 414                 if (ath_mac80211_start_queue(sc, qnum))
 415                         txq->stopped = 0;
 416         }
 417 @@ -2044,6 +2030,7 @@ static void ath_tx_processq(struct ath_s
 418         struct ath_tx_status ts;
 419         int txok;
 420         int status;
 421 +       int qnum;
 422
 423         ath_print(common, ATH_DBG_QUEUE, "tx queue %d (%x), link %p\n",
 424                   txq->axq_qnum, ath9k_hw_gettxbuf(sc->sc_ah, txq->axq_qnum),
 425 @@ -2119,12 +2106,15 @@ static void ath_tx_processq(struct ath_s
 426                         ath_tx_rc_status(bf, &ts, txok ? 0 : 1, txok, true);
 427                 }
 428
 429 +               qnum = skb_get_queue_mapping(bf->bf_mpdu);
 430 +
 431                 if (bf_isampdu(bf))
 432                         ath_tx_complete_aggr(sc, txq, bf, &bf_head, &ts, txok);
 433                 else
 434                         ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, txok, 0);
 435
 436 -               ath_wake_mac80211_queue(sc, txq);
 437 +               if (txq == sc->tx.txq_map[qnum])
 438 +                       ath_wake_mac80211_queue(sc, qnum);
 439
 440                 spin_lock_bh(&txq->axq_lock);
 441                 if (sc->sc_flags & SC_OP_TXAGGR)
 442 @@ -2194,6 +2184,7 @@ void ath_tx_edma_tasklet(struct ath_soft
 443         struct list_head bf_head;
 444         int status;
 445         int txok;
 446 +       int qnum;
 447
 448         for (;;) {
 449                 status = ath9k_hw_txprocdesc(ah, NULL, (void *)&txs);
 450 @@ -2237,13 +2228,16 @@ void ath_tx_edma_tasklet(struct ath_soft
 451                         ath_tx_rc_status(bf, &txs, txok ? 0 : 1, txok, true);
 452                 }
 453
 454 +               qnum = skb_get_queue_mapping(bf->bf_mpdu);
 455 +
 456                 if (bf_isampdu(bf))
 457                         ath_tx_complete_aggr(sc, txq, bf, &bf_head, &txs, txok);
 458                 else
 459                         ath_tx_complete_buf(sc, bf, txq, &bf_head,
 460                                             &txs, txok, 0);
 461
 462 -               ath_wake_mac80211_queue(sc, txq);
 463 +               if (txq == sc->tx.txq_map[qnum])
 464 +                       ath_wake_mac80211_queue(sc, qnum);
 465
 466                 spin_lock_bh(&txq->axq_lock);
 467                 if (!list_empty(&txq->txq_fifo_pending)) {
 468 @@ -2375,7 +2369,7 @@ void ath_tx_node_init(struct ath_softc *
 469         for (acno = 0, ac = &an->ac[acno];
 470              acno < WME_NUM_AC; acno++, ac++) {
 471                 ac->sched    = false;
 472 -               ac->qnum = sc->tx.hwq_map[acno];
 473 +               ac->txq = sc->tx.txq_map[acno];
 474                 INIT_LIST_HEAD(&ac->tid_q);
 475         }
 476  }
 477 @@ -2385,17 +2379,13 @@ void ath_tx_node_cleanup(struct ath_soft
 478         struct ath_atx_ac *ac;
 479         struct ath_atx_tid *tid;
 480         struct ath_txq *txq;
 481 -       int i, tidno;
 482 +       int tidno;
 483
 484         for (tidno = 0, tid = &an->tid[tidno];
 485              tidno < WME_NUM_TID; tidno++, tid++) {
 486 -               i = tid->ac->qnum;
 487 -
 488 -               if (!ATH_TXQ_SETUP(sc, i))
 489 -                       continue;
 490
 491 -               txq = &sc->tx.txq[i];
 492                 ac = tid->ac;
 493 +               txq = ac->txq;
 494
 495                 spin_lock_bh(&txq->axq_lock);
 496
 497 --- a/drivers/net/wireless/ath/ath9k/hw.h
 498 +++ b/drivers/net/wireless/ath/ath9k/hw.h
 499 @@ -157,6 +157,13 @@
 500  #define PAPRD_GAIN_TABLE_ENTRIES    32
 501  #define PAPRD_TABLE_SZ              24
 502
 503 +enum ath_hw_txq_subtype {
 504 +       ATH_TXQ_AC_BE = 0,
 505 +       ATH_TXQ_AC_BK = 1,
 506 +       ATH_TXQ_AC_VI = 2,
 507 +       ATH_TXQ_AC_VO = 3,
 508 +};
 509 +
 510  enum ath_ini_subsys {
 511         ATH_INI_PRE = 0,
 512         ATH_INI_CORE,
 513 --- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
 514 +++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
 515 @@ -20,8 +20,15 @@
 516  /* TX */
 517  /******/
 518
 519 +static const int subtype_txq_to_hwq[] = {
 520 +       [WME_AC_BE] = ATH_TXQ_AC_BE,
 521 +       [WME_AC_BK] = ATH_TXQ_AC_BK,
 522 +       [WME_AC_VI] = ATH_TXQ_AC_VI,
 523 +       [WME_AC_VO] = ATH_TXQ_AC_VO,
 524 +};
 525 +
 526  #define ATH9K_HTC_INIT_TXQ(subtype) do {                       \
 527 -               qi.tqi_subtype = subtype;                       \
 528 +               qi.tqi_subtype = subtype_txq_to_hwq[subtype];   \
 529                 qi.tqi_aifs = ATH9K_TXQ_USEDEFAULT;             \
 530                 qi.tqi_cwmin = ATH9K_TXQ_USEDEFAULT;            \
 531                 qi.tqi_cwmax = ATH9K_TXQ_USEDEFAULT;            \
 532 --- a/drivers/net/wireless/ath/ath9k/init.c
 533 +++ b/drivers/net/wireless/ath/ath9k/init.c
 534 @@ -396,7 +396,8 @@ static void ath9k_init_crypto(struct ath
 535
 536  static int ath9k_init_btcoex(struct ath_softc *sc)
 537  {
 538 -       int r, qnum;
 539 +       struct ath_txq *txq;
 540 +       int r;
 541
 542         switch (sc->sc_ah->btcoex_hw.scheme) {
 543         case ATH_BTCOEX_CFG_NONE:
 544 @@ -409,8 +410,8 @@ static int ath9k_init_btcoex(struct ath_
 545                 r = ath_init_btcoex_timer(sc);
 546                 if (r)
 547                         return -1;
 548 -               qnum = sc->tx.hwq_map[WME_AC_BE];
 549 -               ath9k_hw_init_btcoex_hw(sc->sc_ah, qnum);
 550 +               txq = sc->tx.txq_map[WME_AC_BE];
 551 +               ath9k_hw_init_btcoex_hw(sc->sc_ah, txq->axq_qnum);
 552                 sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
 553                 break;
 554         default:
 555 @@ -423,59 +424,18 @@ static int ath9k_init_btcoex(struct ath_
 556
 557  static int ath9k_init_queues(struct ath_softc *sc)
 558  {
 559 -       struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 560         int i = 0;
 561
 562 -       for (i = 0; i < ARRAY_SIZE(sc->tx.hwq_map); i++)
 563 -               sc->tx.hwq_map[i] = -1;
 564 -
 565         sc->beacon.beaconq = ath9k_hw_beaconq_setup(sc->sc_ah);
 566 -       if (sc->beacon.beaconq == -1) {
 567 -               ath_print(common, ATH_DBG_FATAL,
 568 -                         "Unable to setup a beacon xmit queue\n");
 569 -               goto err;
 570 -       }
 571 -
 572         sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0);
 573 -       if (sc->beacon.cabq == NULL) {
 574 -               ath_print(common, ATH_DBG_FATAL,
 575 -                         "Unable to setup CAB xmit queue\n");
 576 -               goto err;
 577 -       }
 578
 579         sc->config.cabqReadytime = ATH_CABQ_READY_TIME;
 580         ath_cabq_update(sc);
 581
 582 -       if (!ath_tx_setup(sc, WME_AC_BK)) {
 583 -               ath_print(common, ATH_DBG_FATAL,
 584 -                         "Unable to setup xmit queue for BK traffic\n");
 585 -               goto err;
 586 -       }
 587 -
 588 -       if (!ath_tx_setup(sc, WME_AC_BE)) {
 589 -               ath_print(common, ATH_DBG_FATAL,
 590 -                         "Unable to setup xmit queue for BE traffic\n");
 591 -               goto err;
 592 -       }
 593 -       if (!ath_tx_setup(sc, WME_AC_VI)) {
 594 -               ath_print(common, ATH_DBG_FATAL,
 595 -                         "Unable to setup xmit queue for VI traffic\n");
 596 -               goto err;
 597 -       }
 598 -       if (!ath_tx_setup(sc, WME_AC_VO)) {
 599 -               ath_print(common, ATH_DBG_FATAL,
 600 -                         "Unable to setup xmit queue for VO traffic\n");
 601 -               goto err;
 602 -       }
 603 +       for (i = 0; i < WME_NUM_AC; i++)
 604 +               sc->tx.txq_map[i] = ath_txq_setup(sc, ATH9K_TX_QUEUE_DATA, i);
 605
 606         return 0;
 607 -
 608 -err:
 609 -       for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++)
 610 -               if (ATH_TXQ_SETUP(sc, i))
 611 -                       ath_tx_cleanupq(sc, &sc->tx.txq[i]);
 612 -
 613 -       return -EIO;
 614  }
 615
 616  static int ath9k_init_channels_rates(struct ath_softc *sc)
 617 --- a/drivers/net/wireless/ath/ath9k/virtual.c
 618 +++ b/drivers/net/wireless/ath/ath9k/virtual.c
 619 @@ -187,7 +187,7 @@ static int ath9k_send_nullfunc(struct at
 620         info->control.rates[1].idx = -1;
 621
 622         memset(&txctl, 0, sizeof(struct ath_tx_control));
 623 -       txctl.txq = &sc->tx.txq[sc->tx.hwq_map[WME_AC_VO]];
 624 +       txctl.txq = sc->tx.txq_map[WME_AC_VO];
 625         txctl.frame_type = ps ? ATH9K_IFT_PAUSE : ATH9K_IFT_UNPAUSE;
 626
 627         if (ath_tx_start(aphy->hw, skb, &txctl) != 0)
 628 --- a/drivers/net/wireless/ath/ath9k/debug.c
 629 +++ b/drivers/net/wireless/ath/ath9k/debug.c
 630 @@ -579,10 +579,10 @@ static const struct file_operations fops
 631         do {                                                            \
 632                 len += snprintf(buf + len, size - len,                  \
 633                                 "%s%13u%11u%10u%10u\n", str,            \
 634 -               sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BE]].elem, \
 635 -               sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BK]].elem, \
 636 -               sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VI]].elem, \
 637 -               sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VO]].elem); \
 638 +               sc->debug.stats.txstats[WME_AC_BE].elem, \
 639 +               sc->debug.stats.txstats[WME_AC_BK].elem, \
 640 +               sc->debug.stats.txstats[WME_AC_VI].elem, \
 641 +               sc->debug.stats.txstats[WME_AC_VO].elem); \
 642  } while(0)
 643
 644  static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 645 @@ -624,33 +624,35 @@ static ssize_t read_file_xmit(struct fil
 646         return retval;
 647  }
 648
 649 -void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
 650 -                      struct ath_buf *bf, struct ath_tx_status *ts)
 651 +void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 652 +                      struct ath_tx_status *ts)
 653  {
 654 -       TX_STAT_INC(txq->axq_qnum, tx_pkts_all);
 655 -       sc->debug.stats.txstats[txq->axq_qnum].tx_bytes_all += bf->bf_mpdu->len;
 656 +       int qnum = skb_get_queue_mapping(bf->bf_mpdu);
 657 +
 658 +       TX_STAT_INC(qnum, tx_pkts_all);
 659 +       sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
 660
 661         if (bf_isampdu(bf)) {
 662                 if (bf_isxretried(bf))
 663 -                       TX_STAT_INC(txq->axq_qnum, a_xretries);
 664 +                       TX_STAT_INC(qnum, a_xretries);
 665                 else
 666 -                       TX_STAT_INC(txq->axq_qnum, a_completed);
 667 +                       TX_STAT_INC(qnum, a_completed);
 668         } else {
 669 -               TX_STAT_INC(txq->axq_qnum, completed);
 670 +               TX_STAT_INC(qnum, completed);
 671         }
 672
 673         if (ts->ts_status & ATH9K_TXERR_FIFO)
 674 -               TX_STAT_INC(txq->axq_qnum, fifo_underrun);
 675 +               TX_STAT_INC(qnum, fifo_underrun);
 676         if (ts->ts_status & ATH9K_TXERR_XTXOP)
 677 -               TX_STAT_INC(txq->axq_qnum, xtxop);
 678 +               TX_STAT_INC(qnum, xtxop);
 679         if (ts->ts_status & ATH9K_TXERR_TIMER_EXPIRED)
 680 -               TX_STAT_INC(txq->axq_qnum, timer_exp);
 681 +               TX_STAT_INC(qnum, timer_exp);
 682         if (ts->ts_flags & ATH9K_TX_DESC_CFG_ERR)
 683 -               TX_STAT_INC(txq->axq_qnum, desc_cfg_err);
 684 +               TX_STAT_INC(qnum, desc_cfg_err);
 685         if (ts->ts_flags & ATH9K_TX_DATA_UNDERRUN)
 686 -               TX_STAT_INC(txq->axq_qnum, data_underrun);
 687 +               TX_STAT_INC(qnum, data_underrun);
 688         if (ts->ts_flags & ATH9K_TX_DELIM_UNDERRUN)
 689 -               TX_STAT_INC(txq->axq_qnum, delim_underrun);
 690 +               TX_STAT_INC(qnum, delim_underrun);
 691  }
 692
 693  static const struct file_operations fops_xmit = {
 694 --- a/drivers/net/wireless/ath/ath9k/debug.h
 695 +++ b/drivers/net/wireless/ath/ath9k/debug.h
 696 @@ -169,8 +169,8 @@ void ath9k_exit_debug(struct ath_hw *ah)
 697  int ath9k_debug_create_root(void);
 698  void ath9k_debug_remove_root(void);
 699  void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
 700 -void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
 701 -                      struct ath_buf *bf, struct ath_tx_status *ts);
 702 +void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 703 +                      struct ath_tx_status *ts);
 704  void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs);
 705
 706  #else