mac80211: remove a WARN_ON that causes compile errors on 2.6.32
[openwrt.git] / package / mac80211 / patches / 300-pending_work.patch
index 782f7d7..d3bcece 100644 (file)
---- a/drivers/net/wireless/ath/ath9k/hw.h
-+++ b/drivers/net/wireless/ath/ath9k/hw.h
-@@ -603,7 +603,6 @@ struct ath_hw_ops {
-                                    int power_off);
-       void (*rx_enable)(struct ath_hw *ah);
-       void (*set_desc_link)(void *ds, u32 link);
--      void (*get_desc_link)(void *ds, u32 **link);
-       bool (*calibrate)(struct ath_hw *ah,
-                         struct ath9k_channel *chan,
-                         u8 rxchainmask,
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -62,8 +62,6 @@ static bool ath9k_has_pending_frames(str
-       if (txq->axq_depth || !list_empty(&txq->axq_acq))
-               pending = true;
--      else if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
--              pending = !list_empty(&txq->txq_fifo_pending);
-       spin_unlock_bh(&txq->axq_lock);
-       return pending;
 --- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
 +++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
-@@ -28,11 +28,6 @@ static void ar9002_hw_set_desc_link(void
-       ((struct ath_desc*) ds)->ds_link = ds_link;
+@@ -170,33 +170,104 @@ static bool ar9002_hw_get_isr(struct ath
+       return true;
+ }
+-static void ar9002_hw_fill_txdesc(struct ath_hw *ah, void *ds, u32 seglen,
+-                                bool is_firstseg, bool is_lastseg,
+-                                const void *ds0, dma_addr_t buf_addr,
+-                                unsigned int qcu)
++static void
++ar9002_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
+ {
+       struct ar5416_desc *ads = AR5416DESC(ds);
++      u32 ctl1, ctl6;
+-      ads->ds_data = buf_addr;
+-
+-      if (is_firstseg) {
+-              ads->ds_ctl1 |= seglen | (is_lastseg ? 0 : AR_TxMore);
+-      } else if (is_lastseg) {
+-              ads->ds_ctl0 = 0;
+-              ads->ds_ctl1 = seglen;
+-              ads->ds_ctl2 = AR5416DESC_CONST(ds0)->ds_ctl2;
+-              ads->ds_ctl3 = AR5416DESC_CONST(ds0)->ds_ctl3;
+-      } else {
+-              ads->ds_ctl0 = 0;
+-              ads->ds_ctl1 = seglen | AR_TxMore;
+-              ads->ds_ctl2 = 0;
+-              ads->ds_ctl3 = 0;
+-      }
+       ads->ds_txstatus0 = ads->ds_txstatus1 = 0;
+       ads->ds_txstatus2 = ads->ds_txstatus3 = 0;
+       ads->ds_txstatus4 = ads->ds_txstatus5 = 0;
+       ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
+       ads->ds_txstatus8 = ads->ds_txstatus9 = 0;
++
++      ACCESS_ONCE(ads->ds_link) = i->link;
++      ACCESS_ONCE(ads->ds_data) = i->buf_addr[0];
++
++      ctl1 = i->buf_len[0] | (i->is_last ? 0 : AR_TxMore);
++      ctl6 = SM(i->keytype, AR_EncrType);
++
++      if (AR_SREV_9285(ah)) {
++              ads->ds_ctl8 = 0;
++              ads->ds_ctl9 = 0;
++              ads->ds_ctl10 = 0;
++              ads->ds_ctl11 = 0;
++      }
++
++      if ((i->is_first || i->is_last) &&
++          i->aggr != AGGR_BUF_MIDDLE && i->aggr != AGGR_BUF_LAST) {
++              ACCESS_ONCE(ads->ds_ctl2) = set11nTries(i->rates, 0)
++                      | set11nTries(i->rates, 1)
++                      | set11nTries(i->rates, 2)
++                      | set11nTries(i->rates, 3)
++                      | (i->dur_update ? AR_DurUpdateEna : 0)
++                      | SM(0, AR_BurstDur);
++
++              ACCESS_ONCE(ads->ds_ctl3) = set11nRate(i->rates, 0)
++                      | set11nRate(i->rates, 1)
++                      | set11nRate(i->rates, 2)
++                      | set11nRate(i->rates, 3);
++      } else {
++              ACCESS_ONCE(ads->ds_ctl2) = 0;
++              ACCESS_ONCE(ads->ds_ctl3) = 0;
++      }
++
++      if (!i->is_first) {
++              ACCESS_ONCE(ads->ds_ctl0) = 0;
++              ACCESS_ONCE(ads->ds_ctl1) = ctl1;
++              ACCESS_ONCE(ads->ds_ctl6) = ctl6;
++              return;
++      }
++
++      ctl1 |= (i->keyix != ATH9K_TXKEYIX_INVALID ? SM(i->keyix, AR_DestIdx) : 0)
++              | SM(i->type, AR_FrameType)
++              | (i->flags & ATH9K_TXDESC_NOACK ? AR_NoAck : 0)
++              | (i->flags & ATH9K_TXDESC_EXT_ONLY ? AR_ExtOnly : 0)
++              | (i->flags & ATH9K_TXDESC_EXT_AND_CTL ? AR_ExtAndCtl : 0);
++
++      switch (i->aggr) {
++      case AGGR_BUF_FIRST:
++              ctl6 |= SM(i->aggr_len, AR_AggrLen);
++              /* fall through */
++      case AGGR_BUF_MIDDLE:
++              ctl1 |= AR_IsAggr | AR_MoreAggr;
++              ctl6 |= SM(i->ndelim, AR_PadDelim);
++              break;
++      case AGGR_BUF_LAST:
++              ctl1 |= AR_IsAggr;
++              break;
++      case AGGR_BUF_NONE:
++              break;
++      }
++
++      ACCESS_ONCE(ads->ds_ctl0) = (i->pkt_len & AR_FrameLen)
++              | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
++              | SM(i->txpower, AR_XmitPower)
++              | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
++              | (i->flags & ATH9K_TXDESC_INTREQ ? AR_TxIntrReq : 0)
++              | (i->keyix != ATH9K_TXKEYIX_INVALID ? AR_DestIdxValid : 0)
++              | (i->flags & ATH9K_TXDESC_CLRDMASK ? AR_ClrDestMask : 0)
++              | (i->flags & ATH9K_TXDESC_RTSENA ? AR_RTSEnable :
++                 (i->flags & ATH9K_TXDESC_CTSENA ? AR_CTSEnable : 0));
++
++      ACCESS_ONCE(ads->ds_ctl1) = ctl1;
++      ACCESS_ONCE(ads->ds_ctl6) = ctl6;
++
++      if (i->aggr == AGGR_BUF_MIDDLE || i->aggr == AGGR_BUF_LAST)
++              return;
++
++      ACCESS_ONCE(ads->ds_ctl4) = set11nPktDurRTSCTS(i->rates, 0)
++              | set11nPktDurRTSCTS(i->rates, 1);
++
++      ACCESS_ONCE(ads->ds_ctl5) = set11nPktDurRTSCTS(i->rates, 2)
++              | set11nPktDurRTSCTS(i->rates, 3);
++
++      ACCESS_ONCE(ads->ds_ctl7) = set11nRateFlags(i->rates, 0)
++              | set11nRateFlags(i->rates, 1)
++              | set11nRateFlags(i->rates, 2)
++              | set11nRateFlags(i->rates, 3)
++              | SM(i->rtscts_rate, AR_RTSCTSRate);
+ }
+ static int ar9002_hw_proc_txdesc(struct ath_hw *ah, void *ds,
+@@ -271,145 +342,6 @@ static int ar9002_hw_proc_txdesc(struct 
+       return 0;
  }
  
--static void ar9002_hw_get_desc_link(void *ds, u32 **ds_link)
+-static void ar9002_hw_set11n_txdesc(struct ath_hw *ah, void *ds,
+-                                  u32 pktLen, enum ath9k_pkt_type type,
+-                                  u32 txPower, u8 keyIx,
+-                                  enum ath9k_key_type keyType, u32 flags)
 -{
--      *ds_link = &((struct ath_desc *)ds)->ds_link;
+-      struct ar5416_desc *ads = AR5416DESC(ds);
+-
+-      if (txPower > 63)
+-              txPower = 63;
+-
+-      ads->ds_ctl0 = (pktLen & AR_FrameLen)
+-              | (flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
+-              | SM(txPower, AR_XmitPower)
+-              | (flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
+-              | (flags & ATH9K_TXDESC_INTREQ ? AR_TxIntrReq : 0)
+-              | (keyIx != ATH9K_TXKEYIX_INVALID ? AR_DestIdxValid : 0);
+-
+-      ads->ds_ctl1 =
+-              (keyIx != ATH9K_TXKEYIX_INVALID ? SM(keyIx, AR_DestIdx) : 0)
+-              | SM(type, AR_FrameType)
+-              | (flags & ATH9K_TXDESC_NOACK ? AR_NoAck : 0)
+-              | (flags & ATH9K_TXDESC_EXT_ONLY ? AR_ExtOnly : 0)
+-              | (flags & ATH9K_TXDESC_EXT_AND_CTL ? AR_ExtAndCtl : 0);
+-
+-      ads->ds_ctl6 = SM(keyType, AR_EncrType);
+-
+-      if (AR_SREV_9285(ah) || AR_SREV_9271(ah)) {
+-              ads->ds_ctl8 = 0;
+-              ads->ds_ctl9 = 0;
+-              ads->ds_ctl10 = 0;
+-              ads->ds_ctl11 = 0;
+-      }
+-}
+-
+-static void ar9002_hw_set_clrdmask(struct ath_hw *ah, void *ds, bool val)
+-{
+-      struct ar5416_desc *ads = AR5416DESC(ds);
+-
+-      if (val)
+-              ads->ds_ctl0 |= AR_ClrDestMask;
+-      else
+-              ads->ds_ctl0 &= ~AR_ClrDestMask;
 -}
 -
- static bool ar9002_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
+-static void ar9002_hw_set11n_ratescenario(struct ath_hw *ah, void *ds,
+-                                        void *lastds,
+-                                        u32 durUpdateEn, u32 rtsctsRate,
+-                                        u32 rtsctsDuration,
+-                                        struct ath9k_11n_rate_series series[],
+-                                        u32 nseries, u32 flags)
+-{
+-      struct ar5416_desc *ads = AR5416DESC(ds);
+-      struct ar5416_desc *last_ads = AR5416DESC(lastds);
+-      u32 ds_ctl0;
+-
+-      if (flags & (ATH9K_TXDESC_RTSENA | ATH9K_TXDESC_CTSENA)) {
+-              ds_ctl0 = ads->ds_ctl0;
+-
+-              if (flags & ATH9K_TXDESC_RTSENA) {
+-                      ds_ctl0 &= ~AR_CTSEnable;
+-                      ds_ctl0 |= AR_RTSEnable;
+-              } else {
+-                      ds_ctl0 &= ~AR_RTSEnable;
+-                      ds_ctl0 |= AR_CTSEnable;
+-              }
+-
+-              ads->ds_ctl0 = ds_ctl0;
+-      } else {
+-              ads->ds_ctl0 =
+-                      (ads->ds_ctl0 & ~(AR_RTSEnable | AR_CTSEnable));
+-      }
+-
+-      ads->ds_ctl2 = set11nTries(series, 0)
+-              | set11nTries(series, 1)
+-              | set11nTries(series, 2)
+-              | set11nTries(series, 3)
+-              | (durUpdateEn ? AR_DurUpdateEna : 0)
+-              | SM(0, AR_BurstDur);
+-
+-      ads->ds_ctl3 = set11nRate(series, 0)
+-              | set11nRate(series, 1)
+-              | set11nRate(series, 2)
+-              | set11nRate(series, 3);
+-
+-      ads->ds_ctl4 = set11nPktDurRTSCTS(series, 0)
+-              | set11nPktDurRTSCTS(series, 1);
+-
+-      ads->ds_ctl5 = set11nPktDurRTSCTS(series, 2)
+-              | set11nPktDurRTSCTS(series, 3);
+-
+-      ads->ds_ctl7 = set11nRateFlags(series, 0)
+-              | set11nRateFlags(series, 1)
+-              | set11nRateFlags(series, 2)
+-              | set11nRateFlags(series, 3)
+-              | SM(rtsctsRate, AR_RTSCTSRate);
+-      last_ads->ds_ctl2 = ads->ds_ctl2;
+-      last_ads->ds_ctl3 = ads->ds_ctl3;
+-}
+-
+-static void ar9002_hw_set11n_aggr_first(struct ath_hw *ah, void *ds,
+-                                      u32 aggrLen)
+-{
+-      struct ar5416_desc *ads = AR5416DESC(ds);
+-
+-      ads->ds_ctl1 |= (AR_IsAggr | AR_MoreAggr);
+-      ads->ds_ctl6 &= ~AR_AggrLen;
+-      ads->ds_ctl6 |= SM(aggrLen, AR_AggrLen);
+-}
+-
+-static void ar9002_hw_set11n_aggr_middle(struct ath_hw *ah, void *ds,
+-                                       u32 numDelims)
+-{
+-      struct ar5416_desc *ads = AR5416DESC(ds);
+-      unsigned int ctl6;
+-
+-      ads->ds_ctl1 |= (AR_IsAggr | AR_MoreAggr);
+-
+-      ctl6 = ads->ds_ctl6;
+-      ctl6 &= ~AR_PadDelim;
+-      ctl6 |= SM(numDelims, AR_PadDelim);
+-      ads->ds_ctl6 = ctl6;
+-}
+-
+-static void ar9002_hw_set11n_aggr_last(struct ath_hw *ah, void *ds)
+-{
+-      struct ar5416_desc *ads = AR5416DESC(ds);
+-
+-      ads->ds_ctl1 |= AR_IsAggr;
+-      ads->ds_ctl1 &= ~AR_MoreAggr;
+-      ads->ds_ctl6 &= ~AR_PadDelim;
+-}
+-
+-static void ar9002_hw_clr11n_aggr(struct ath_hw *ah, void *ds)
+-{
+-      struct ar5416_desc *ads = AR5416DESC(ds);
+-
+-      ads->ds_ctl1 &= (~AR_IsAggr & ~AR_MoreAggr);
+-}
+-
+ void ath9k_hw_setuprxdesc(struct ath_hw *ah, struct ath_desc *ds,
+                         u32 size, u32 flags)
  {
-       u32 isr = 0;
-@@ -437,7 +432,6 @@ void ar9002_hw_attach_mac_ops(struct ath
+@@ -433,13 +365,6 @@ void ar9002_hw_attach_mac_ops(struct ath
        ops->rx_enable = ar9002_hw_rx_enable;
        ops->set_desc_link = ar9002_hw_set_desc_link;
--      ops->get_desc_link = ar9002_hw_get_desc_link;
        ops->get_isr = ar9002_hw_get_isr;
-       ops->fill_txdesc = ar9002_hw_fill_txdesc;
+-      ops->fill_txdesc = ar9002_hw_fill_txdesc;
++      ops->set_txdesc = ar9002_set_txdesc;
        ops->proc_txdesc = ar9002_hw_proc_txdesc;
+-      ops->set11n_txdesc = ar9002_hw_set11n_txdesc;
+-      ops->set11n_ratescenario = ar9002_hw_set11n_ratescenario;
+-      ops->set11n_aggr_first = ar9002_hw_set11n_aggr_first;
+-      ops->set11n_aggr_middle = ar9002_hw_set11n_aggr_middle;
+-      ops->set11n_aggr_last = ar9002_hw_set11n_aggr_last;
+-      ops->clr11n_aggr = ar9002_hw_clr11n_aggr;
+-      ops->set_clrdmask = ar9002_hw_set_clrdmask;
+ }
+--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+@@ -652,8 +652,9 @@ static void ar9003_hw_detect_outlier(int
+                       outlier_idx = max_idx;
+               else
+                       outlier_idx = min_idx;
++
++              mp_coeff[outlier_idx] = mp_avg;
+       }
+-      mp_coeff[outlier_idx] = mp_avg;
+ }
+ static void ar9003_hw_tx_iqcal_load_avg_2_passes(struct ath_hw *ah,
+@@ -884,6 +885,7 @@ static bool ar9003_hw_init_cal(struct at
+       if (txiqcal_done)
+               ar9003_hw_tx_iq_cal_post_proc(ah);
++      ath9k_hw_loadnf(ah, chan);
+       ath9k_hw_start_nfcal(ah, true);
+       /* Initialize list pointers */
 --- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
 +++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
-@@ -43,13 +43,6 @@ static void ar9003_hw_set_desc_link(void
-       ads->ctl10 |= ar9003_calc_ptr_chksum(ads);
+@@ -21,6 +21,132 @@ static void ar9003_hw_rx_enable(struct a
+       REG_WRITE(hw, AR_CR, 0);
  }
  
--static void ar9003_hw_get_desc_link(void *ds, u32 **ds_link)
++static void
++ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i)
++{
++      struct ar9003_txc *ads = ds;
++      int checksum = 0;
++      u32 val, ctl12, ctl17;
++
++      val = (ATHEROS_VENDOR_ID << AR_DescId_S) |
++            (1 << AR_TxRxDesc_S) |
++            (1 << AR_CtrlStat_S) |
++            (i->qcu << AR_TxQcuNum_S) | 0x17;
++
++      checksum += val;
++      ACCESS_ONCE(ads->info) = val;
++
++      checksum += i->link;
++      ACCESS_ONCE(ads->link) = i->link;
++
++      checksum += i->buf_addr[0];
++      ACCESS_ONCE(ads->data0) = i->buf_addr[0];
++      checksum += i->buf_addr[1];
++      ACCESS_ONCE(ads->data1) = i->buf_addr[1];
++      checksum += i->buf_addr[2];
++      ACCESS_ONCE(ads->data2) = i->buf_addr[2];
++      checksum += i->buf_addr[3];
++      ACCESS_ONCE(ads->data3) = i->buf_addr[3];
++
++      checksum += (val = (i->buf_len[0] << AR_BufLen_S) & AR_BufLen);
++      ACCESS_ONCE(ads->ctl3) = val;
++      checksum += (val = (i->buf_len[1] << AR_BufLen_S) & AR_BufLen);
++      ACCESS_ONCE(ads->ctl5) = val;
++      checksum += (val = (i->buf_len[2] << AR_BufLen_S) & AR_BufLen);
++      ACCESS_ONCE(ads->ctl7) = val;
++      checksum += (val = (i->buf_len[3] << AR_BufLen_S) & AR_BufLen);
++      ACCESS_ONCE(ads->ctl9) = val;
++
++      checksum = (u16) (((checksum & 0xffff) + (checksum >> 16)) & 0xffff);
++      ACCESS_ONCE(ads->ctl10) = checksum;
++
++      if (i->is_first || i->is_last) {
++              ACCESS_ONCE(ads->ctl13) = set11nTries(i->rates, 0)
++                      | set11nTries(i->rates, 1)
++                      | set11nTries(i->rates, 2)
++                      | set11nTries(i->rates, 3)
++                      | (i->dur_update ? AR_DurUpdateEna : 0)
++                      | SM(0, AR_BurstDur);
++
++              ACCESS_ONCE(ads->ctl14) = set11nRate(i->rates, 0)
++                      | set11nRate(i->rates, 1)
++                      | set11nRate(i->rates, 2)
++                      | set11nRate(i->rates, 3);
++      } else {
++              ACCESS_ONCE(ads->ctl13) = 0;
++              ACCESS_ONCE(ads->ctl14) = 0;
++      }
++
++      ads->ctl20 = 0;
++      ads->ctl21 = 0;
++      ads->ctl22 = 0;
++
++      ctl17 = SM(i->keytype, AR_EncrType);
++      if (!i->is_first) {
++              ACCESS_ONCE(ads->ctl11) = 0;
++              ACCESS_ONCE(ads->ctl12) = i->is_last ? 0 : AR_TxMore;
++              ACCESS_ONCE(ads->ctl15) = 0;
++              ACCESS_ONCE(ads->ctl16) = 0;
++              ACCESS_ONCE(ads->ctl17) = ctl17;
++              ACCESS_ONCE(ads->ctl18) = 0;
++              ACCESS_ONCE(ads->ctl19) = 0;
++              return;
++      }
++
++      ACCESS_ONCE(ads->ctl11) = (i->pkt_len & AR_FrameLen)
++              | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
++              | SM(i->txpower, AR_XmitPower)
++              | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
++              | (i->keyix != ATH9K_TXKEYIX_INVALID ? AR_DestIdxValid : 0)
++              | (i->flags & ATH9K_TXDESC_LOWRXCHAIN ? AR_LowRxChain : 0)
++              | (i->flags & ATH9K_TXDESC_CLRDMASK ? AR_ClrDestMask : 0)
++              | (i->flags & ATH9K_TXDESC_RTSENA ? AR_RTSEnable :
++                 (i->flags & ATH9K_TXDESC_CTSENA ? AR_CTSEnable : 0));
++
++      ctl12 = (i->keyix != ATH9K_TXKEYIX_INVALID ?
++               SM(i->keyix, AR_DestIdx) : 0)
++              | SM(i->type, AR_FrameType)
++              | (i->flags & ATH9K_TXDESC_NOACK ? AR_NoAck : 0)
++              | (i->flags & ATH9K_TXDESC_EXT_ONLY ? AR_ExtOnly : 0)
++              | (i->flags & ATH9K_TXDESC_EXT_AND_CTL ? AR_ExtAndCtl : 0);
++
++      ctl17 |= (i->flags & ATH9K_TXDESC_LDPC ? AR_LDPC : 0);
++      switch (i->aggr) {
++      case AGGR_BUF_FIRST:
++              ctl17 |= SM(i->aggr_len, AR_AggrLen);
++              /* fall through */
++      case AGGR_BUF_MIDDLE:
++              ctl12 |= AR_IsAggr | AR_MoreAggr;
++              ctl17 |= SM(i->ndelim, AR_PadDelim);
++              break;
++      case AGGR_BUF_LAST:
++              ctl12 |= AR_IsAggr;
++              break;
++      case AGGR_BUF_NONE:
++              break;
++      }
++
++      val = (i->flags & ATH9K_TXDESC_PAPRD) >> ATH9K_TXDESC_PAPRD_S;
++      ctl12 |= SM(val, AR_PAPRDChainMask);
++
++      ACCESS_ONCE(ads->ctl12) = ctl12;
++      ACCESS_ONCE(ads->ctl17) = ctl17;
++
++      ACCESS_ONCE(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0)
++              | set11nPktDurRTSCTS(i->rates, 1);
++
++      ACCESS_ONCE(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2)
++              | set11nPktDurRTSCTS(i->rates, 3);
++
++      ACCESS_ONCE(ads->ctl18) = set11nRateFlags(i->rates, 0)
++              | set11nRateFlags(i->rates, 1)
++              | set11nRateFlags(i->rates, 2)
++              | set11nRateFlags(i->rates, 3)
++              | SM(i->rtscts_rate, AR_RTSCTSRate);
++
++      ACCESS_ONCE(ads->ctl19) = AR_Not_Sounding;
++}
++
+ static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads)
+ {
+       int checksum;
+@@ -185,47 +311,6 @@ static bool ar9003_hw_get_isr(struct ath
+       return true;
+ }
+-static void ar9003_hw_fill_txdesc(struct ath_hw *ah, void *ds, u32 seglen,
+-                                bool is_firstseg, bool is_lastseg,
+-                                const void *ds0, dma_addr_t buf_addr,
+-                                unsigned int qcu)
 -{
--      struct ar9003_txc *ads = ds;
+-      struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+-      unsigned int descid = 0;
+-
+-      ads->info = (ATHEROS_VENDOR_ID << AR_DescId_S) |
+-                                   (1 << AR_TxRxDesc_S) |
+-                                   (1 << AR_CtrlStat_S) |
+-                                   (qcu << AR_TxQcuNum_S) | 0x17;
 -
--      *ds_link = &ads->link;
+-      ads->data0 = buf_addr;
+-      ads->data1 = 0;
+-      ads->data2 = 0;
+-      ads->data3 = 0;
+-
+-      ads->ctl3 = (seglen << AR_BufLen_S);
+-      ads->ctl3 &= AR_BufLen;
+-
+-      /* Fill in pointer checksum and descriptor id */
+-      ads->ctl10 = ar9003_calc_ptr_chksum(ads);
+-      ads->ctl10 |= (descid << AR_TxDescId_S);
+-
+-      if (is_firstseg) {
+-              ads->ctl12 |= (is_lastseg ? 0 : AR_TxMore);
+-      } else if (is_lastseg) {
+-              ads->ctl11 = 0;
+-              ads->ctl12 = 0;
+-              ads->ctl13 = AR9003TXC_CONST(ds0)->ctl13;
+-              ads->ctl14 = AR9003TXC_CONST(ds0)->ctl14;
+-      } else {
+-              /* XXX Intermediate descriptor in a multi-descriptor frame.*/
+-              ads->ctl11 = 0;
+-              ads->ctl12 = AR_TxMore;
+-              ads->ctl13 = 0;
+-              ads->ctl14 = 0;
+-      }
 -}
 -
- static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
+ static int ar9003_hw_proc_txdesc(struct ath_hw *ah, void *ds,
+                                struct ath_tx_status *ts)
  {
-       u32 isr = 0;
-@@ -498,7 +491,6 @@ void ar9003_hw_attach_mac_ops(struct ath
+@@ -310,161 +395,6 @@ static int ar9003_hw_proc_txdesc(struct 
+       return 0;
+ }
  
+-static void ar9003_hw_set11n_txdesc(struct ath_hw *ah, void *ds,
+-              u32 pktlen, enum ath9k_pkt_type type, u32 txpower,
+-              u8 keyIx, enum ath9k_key_type keyType, u32 flags)
+-{
+-      struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+-
+-      if (txpower > ah->txpower_limit)
+-              txpower = ah->txpower_limit;
+-
+-      if (txpower > 63)
+-              txpower = 63;
+-
+-      ads->ctl11 = (pktlen & AR_FrameLen)
+-              | (flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
+-              | SM(txpower, AR_XmitPower)
+-              | (flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
+-              | (keyIx != ATH9K_TXKEYIX_INVALID ? AR_DestIdxValid : 0)
+-              | (flags & ATH9K_TXDESC_LOWRXCHAIN ? AR_LowRxChain : 0);
+-
+-      ads->ctl12 =
+-              (keyIx != ATH9K_TXKEYIX_INVALID ? SM(keyIx, AR_DestIdx) : 0)
+-              | SM(type, AR_FrameType)
+-              | (flags & ATH9K_TXDESC_NOACK ? AR_NoAck : 0)
+-              | (flags & ATH9K_TXDESC_EXT_ONLY ? AR_ExtOnly : 0)
+-              | (flags & ATH9K_TXDESC_EXT_AND_CTL ? AR_ExtAndCtl : 0);
+-
+-      ads->ctl17 = SM(keyType, AR_EncrType) |
+-                   (flags & ATH9K_TXDESC_LDPC ? AR_LDPC : 0);
+-      ads->ctl18 = 0;
+-      ads->ctl19 = AR_Not_Sounding;
+-
+-      ads->ctl20 = 0;
+-      ads->ctl21 = 0;
+-      ads->ctl22 = 0;
+-}
+-
+-static void ar9003_hw_set_clrdmask(struct ath_hw *ah, void *ds, bool val)
+-{
+-      struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+-
+-      if (val)
+-              ads->ctl11 |= AR_ClrDestMask;
+-      else
+-              ads->ctl11 &= ~AR_ClrDestMask;
+-}
+-
+-static void ar9003_hw_set11n_ratescenario(struct ath_hw *ah, void *ds,
+-                                        void *lastds,
+-                                        u32 durUpdateEn, u32 rtsctsRate,
+-                                        u32 rtsctsDuration,
+-                                        struct ath9k_11n_rate_series series[],
+-                                        u32 nseries, u32 flags)
+-{
+-      struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+-      struct ar9003_txc *last_ads = (struct ar9003_txc *) lastds;
+-      u_int32_t ctl11;
+-
+-      if (flags & (ATH9K_TXDESC_RTSENA | ATH9K_TXDESC_CTSENA)) {
+-              ctl11 = ads->ctl11;
+-
+-              if (flags & ATH9K_TXDESC_RTSENA) {
+-                      ctl11 &= ~AR_CTSEnable;
+-                      ctl11 |= AR_RTSEnable;
+-              } else {
+-                      ctl11 &= ~AR_RTSEnable;
+-                      ctl11 |= AR_CTSEnable;
+-              }
+-
+-              ads->ctl11 = ctl11;
+-      } else {
+-              ads->ctl11 = (ads->ctl11 & ~(AR_RTSEnable | AR_CTSEnable));
+-      }
+-
+-      ads->ctl13 = set11nTries(series, 0)
+-              |  set11nTries(series, 1)
+-              |  set11nTries(series, 2)
+-              |  set11nTries(series, 3)
+-              |  (durUpdateEn ? AR_DurUpdateEna : 0)
+-              |  SM(0, AR_BurstDur);
+-
+-      ads->ctl14 = set11nRate(series, 0)
+-              |  set11nRate(series, 1)
+-              |  set11nRate(series, 2)
+-              |  set11nRate(series, 3);
+-
+-      ads->ctl15 = set11nPktDurRTSCTS(series, 0)
+-              |  set11nPktDurRTSCTS(series, 1);
+-
+-      ads->ctl16 = set11nPktDurRTSCTS(series, 2)
+-              |  set11nPktDurRTSCTS(series, 3);
+-
+-      ads->ctl18 = set11nRateFlags(series, 0)
+-              |  set11nRateFlags(series, 1)
+-              |  set11nRateFlags(series, 2)
+-              |  set11nRateFlags(series, 3)
+-              | SM(rtsctsRate, AR_RTSCTSRate);
+-      ads->ctl19 = AR_Not_Sounding;
+-
+-      last_ads->ctl13 = ads->ctl13;
+-      last_ads->ctl14 = ads->ctl14;
+-}
+-
+-static void ar9003_hw_set11n_aggr_first(struct ath_hw *ah, void *ds,
+-                                      u32 aggrLen)
+-{
+-      struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+-
+-      ads->ctl12 |= (AR_IsAggr | AR_MoreAggr);
+-
+-      ads->ctl17 &= ~AR_AggrLen;
+-      ads->ctl17 |= SM(aggrLen, AR_AggrLen);
+-}
+-
+-static void ar9003_hw_set11n_aggr_middle(struct ath_hw *ah, void *ds,
+-                                       u32 numDelims)
+-{
+-      struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+-      unsigned int ctl17;
+-
+-      ads->ctl12 |= (AR_IsAggr | AR_MoreAggr);
+-
+-      /*
+-       * We use a stack variable to manipulate ctl6 to reduce uncached
+-       * read modify, modfiy, write.
+-       */
+-      ctl17 = ads->ctl17;
+-      ctl17 &= ~AR_PadDelim;
+-      ctl17 |= SM(numDelims, AR_PadDelim);
+-      ads->ctl17 = ctl17;
+-}
+-
+-static void ar9003_hw_set11n_aggr_last(struct ath_hw *ah, void *ds)
+-{
+-      struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+-
+-      ads->ctl12 |= AR_IsAggr;
+-      ads->ctl12 &= ~AR_MoreAggr;
+-      ads->ctl17 &= ~AR_PadDelim;
+-}
+-
+-static void ar9003_hw_clr11n_aggr(struct ath_hw *ah, void *ds)
+-{
+-      struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+-
+-      ads->ctl12 &= (~AR_IsAggr & ~AR_MoreAggr);
+-}
+-
+-void ar9003_hw_set_paprd_txdesc(struct ath_hw *ah, void *ds, u8 chains)
+-{
+-      struct ar9003_txc *ads = ds;
+-
+-      ads->ctl12 |= SM(chains, AR_PAPRDChainMask);
+-}
+-EXPORT_SYMBOL(ar9003_hw_set_paprd_txdesc);
+-
+ void ar9003_hw_attach_mac_ops(struct ath_hw *hw)
+ {
+       struct ath_hw_ops *ops = ath9k_hw_ops(hw);
+@@ -472,15 +402,8 @@ void ar9003_hw_attach_mac_ops(struct ath
        ops->rx_enable = ar9003_hw_rx_enable;
        ops->set_desc_link = ar9003_hw_set_desc_link;
--      ops->get_desc_link = ar9003_hw_get_desc_link;
        ops->get_isr = ar9003_hw_get_isr;
-       ops->fill_txdesc = ar9003_hw_fill_txdesc;
+-      ops->fill_txdesc = ar9003_hw_fill_txdesc;
++      ops->set_txdesc = ar9003_set_txdesc;
        ops->proc_txdesc = ar9003_hw_proc_txdesc;
+-      ops->set11n_txdesc = ar9003_hw_set11n_txdesc;
+-      ops->set11n_ratescenario = ar9003_hw_set11n_ratescenario;
+-      ops->set11n_aggr_first = ar9003_hw_set11n_aggr_first;
+-      ops->set11n_aggr_middle = ar9003_hw_set11n_aggr_middle;
+-      ops->set11n_aggr_last = ar9003_hw_set11n_aggr_last;
+-      ops->clr11n_aggr = ar9003_hw_clr11n_aggr;
+-      ops->set_clrdmask = ar9003_hw_set_clrdmask;
+ }
+ void ath9k_hw_set_rx_bufsize(struct ath_hw *ah, u16 buf_size)
 --- a/drivers/net/wireless/ath/ath9k/ath9k.h
 +++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -179,7 +179,7 @@ enum ATH_AGGR_STATUS {
- struct ath_txq {
-       int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
-       u32 axq_qnum; /* ath9k hardware queue number */
--      u32 *axq_link;
-+      void *axq_link;
-       struct list_head axq_q;
-       spinlock_t axq_lock;
-       u32 axq_depth;
-@@ -188,7 +188,6 @@ struct ath_txq {
-       bool axq_tx_inprogress;
-       struct list_head axq_acq;
-       struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
--      struct list_head txq_fifo_pending;
-       u8 txq_headidx;
-       u8 txq_tailidx;
-       int pending_frames;
+@@ -87,17 +87,14 @@ struct ath_config {
+  * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX)
+  * @BUF_AGGR: Indicates whether the buffer can be aggregated
+  *    (used in aggregation scheduling)
+- * @BUF_XRETRY: To denote excessive retries of the buffer
+  */
+ enum buffer_type {
+       BUF_AMPDU               = BIT(0),
+       BUF_AGGR                = BIT(1),
+-      BUF_XRETRY              = BIT(2),
+ };
+ #define bf_isampdu(bf)                (bf->bf_state.bf_type & BUF_AMPDU)
+ #define bf_isaggr(bf)         (bf->bf_state.bf_type & BUF_AGGR)
+-#define bf_isxretried(bf)     (bf->bf_state.bf_type & BUF_XRETRY)
+ #define ATH_TXSTATUS_RING_SIZE 64
+@@ -216,6 +213,7 @@ struct ath_frame_info {
+ struct ath_buf_state {
+       u8 bf_type;
+       u8 bfs_paprd;
++      u8 ndelim;
+       u16 seqno;
+       unsigned long bfs_paprd_timestamp;
+ };
+@@ -230,7 +228,6 @@ struct ath_buf {
+       dma_addr_t bf_daddr;            /* physical addr of desc */
+       dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */
+       bool bf_stale;
+-      u16 bf_flags;
+       struct ath_buf_state bf_state;
+ };
+@@ -277,8 +274,7 @@ struct ath_tx_control {
+ };
+ #define ATH_TX_ERROR        0x01
+-#define ATH_TX_XRETRY       0x02
+-#define ATH_TX_BAR          0x04
++#define ATH_TX_BAR          0x02
+ /**
+  * @txq_map:  Index is mac80211 queue number.  This is
+--- a/drivers/net/wireless/ath/ath9k/beacon.c
++++ b/drivers/net/wireless/ath/ath9k/beacon.c
+@@ -73,44 +73,39 @@ static void ath_beacon_setup(struct ath_
+       struct sk_buff *skb = bf->bf_mpdu;
+       struct ath_hw *ah = sc->sc_ah;
+       struct ath_common *common = ath9k_hw_common(ah);
+-      struct ath_desc *ds;
+-      struct ath9k_11n_rate_series series[4];
+-      int flags, ctsrate = 0, ctsduration = 0;
++      struct ath_tx_info info;
+       struct ieee80211_supported_band *sband;
++      u8 chainmask = ah->txchainmask;
+       u8 rate = 0;
+       ath9k_reset_beacon_status(sc);
+-      ds = bf->bf_desc;
+-      flags = ATH9K_TXDESC_NOACK;
+-
+-      ds->ds_link = 0;
+-
+       sband = &sc->sbands[common->hw->conf.channel->band];
+       rate = sband->bitrates[rateidx].hw_value;
+       if (sc->sc_flags & SC_OP_PREAMBLE_SHORT)
+               rate |= sband->bitrates[rateidx].hw_value_short;
+-      ath9k_hw_set11n_txdesc(ah, ds, skb->len + FCS_LEN,
+-                             ATH9K_PKT_TYPE_BEACON,
+-                             MAX_RATE_POWER,
+-                             ATH9K_TXKEYIX_INVALID,
+-                             ATH9K_KEY_TYPE_CLEAR,
+-                             flags);
+-
+-      /* NB: beacon's BufLen must be a multiple of 4 bytes */
+-      ath9k_hw_filltxdesc(ah, ds, roundup(skb->len, 4),
+-                          true, true, ds, bf->bf_buf_addr,
+-                          sc->beacon.beaconq);
+-
+-      memset(series, 0, sizeof(struct ath9k_11n_rate_series) * 4);
+-      series[0].Tries = 1;
+-      series[0].Rate = rate;
+-      series[0].ChSel = ath_txchainmask_reduction(sc,
+-                      ah->txchainmask, series[0].Rate);
+-      series[0].RateFlags = (ctsrate) ? ATH9K_RATESERIES_RTS_CTS : 0;
+-      ath9k_hw_set11n_ratescenario(ah, ds, ds, 0, ctsrate, ctsduration,
+-                                   series, 4, 0);
++      memset(&info, 0, sizeof(info));
++      info.pkt_len = skb->len + FCS_LEN;
++      info.type = ATH9K_PKT_TYPE_BEACON;
++      info.txpower = MAX_RATE_POWER;
++      info.keyix = ATH9K_TXKEYIX_INVALID;
++      info.keytype = ATH9K_KEY_TYPE_CLEAR;
++      info.flags = ATH9K_TXDESC_NOACK;
++
++      info.buf_addr[0] = bf->bf_buf_addr;
++      info.buf_len[0] = roundup(skb->len, 4);
++
++      info.is_first = true;
++      info.is_last = true;
++
++      info.qcu = sc->beacon.beaconq;
++
++      info.rates[0].Tries = 1;
++      info.rates[0].Rate = rate;
++      info.rates[0].ChSel = ath_txchainmask_reduction(sc, chainmask, rate);
++
++      ath9k_hw_set_txdesc(ah, bf->bf_desc, &info);
+ }
+ static void ath_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb)
+@@ -517,6 +512,7 @@ static void ath_beacon_config_ap(struct 
+       /* Set the computed AP beacon timers */
+       ath9k_hw_disable_interrupts(ah);
++      sc->sc_flags |= SC_OP_TSF_RESET;
+       ath9k_beacon_init(sc, nexttbtt, intval);
+       sc->beacon.bmisscnt = 0;
+       ath9k_hw_set_interrupts(ah, ah->imask);
 --- a/drivers/net/wireless/ath/ath9k/debug.c
 +++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -550,6 +550,7 @@ static ssize_t read_file_xmit(struct fil
-       PR("MPDUs Queued:    ", queued);
-       PR("MPDUs Completed: ", completed);
-+      PR("MPDUs XRetried:  ", xretries);
-       PR("Aggregates:      ", a_aggr);
-       PR("AMPDUs Queued HW:", a_queued_hw);
-       PR("AMPDUs Queued SW:", a_queued_sw);
-@@ -587,7 +588,6 @@ static ssize_t read_file_xmit(struct fil
-       PRQLE("axq_q empty:       ", axq_q);
-       PRQLE("axq_acq empty:     ", axq_acq);
--      PRQLE("txq_fifo_pending:  ", txq_fifo_pending);
-       for (i = 0; i < ATH_TXFIFO_DEPTH; i++) {
-               snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i);
-               PRQLE(tmp, txq_fifo[i]);
-@@ -807,7 +807,10 @@ void ath_debug_stat_tx(struct ath_softc 
+@@ -826,7 +826,8 @@ static ssize_t read_file_misc(struct fil
+ }
+ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
+-                     struct ath_tx_status *ts, struct ath_txq *txq)
++                     struct ath_tx_status *ts, struct ath_txq *txq,
++                     unsigned int flags)
+ {
+ #define TX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].ts\
+                       [sc->debug.tsidx].c)
+@@ -836,12 +837,12 @@ void ath_debug_stat_tx(struct ath_softc 
+       sc->debug.stats.txstats[qnum].tx_bytes_all += bf->bf_mpdu->len;
+       if (bf_isampdu(bf)) {
+-              if (bf_isxretried(bf))
++              if (flags & ATH_TX_BAR)
+                       TX_STAT_INC(qnum, a_xretries);
                else
                        TX_STAT_INC(qnum, a_completed);
        } else {
--              TX_STAT_INC(qnum, completed);
-+              if (bf_isxretried(bf))
-+                      TX_STAT_INC(qnum, xretries);
-+              else
-+                      TX_STAT_INC(qnum, completed);
-       }
+-              if (bf_isxretried(bf))
++              if (ts->ts_status & ATH9K_TXERR_XRETRY)
+                       TX_STAT_INC(qnum, xretries);
+               else
+                       TX_STAT_INC(qnum, completed);
+--- a/drivers/net/wireless/ath/ath9k/debug.h
++++ b/drivers/net/wireless/ath/ath9k/debug.h
+@@ -230,7 +230,8 @@ int ath9k_init_debug(struct ath_hw *ah);
+ void ath9k_debug_samp_bb_mac(struct ath_softc *sc);
+ void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
+ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
+-                     struct ath_tx_status *ts, struct ath_txq *txq);
++                     struct ath_tx_status *ts, struct ath_txq *txq,
++                     unsigned int flags);
+ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs);
+ #else
+@@ -252,7 +253,8 @@ static inline void ath_debug_stat_interr
+ static inline void ath_debug_stat_tx(struct ath_softc *sc,
+                                    struct ath_buf *bf,
+                                    struct ath_tx_status *ts,
+-                                   struct ath_txq *txq)
++                                   struct ath_txq *txq,
++                                   unsigned int flags)
+ {
+ }
  
-       if (ts->ts_status & ATH9K_TXERR_FIFO)
 --- a/drivers/net/wireless/ath/ath9k/hw-ops.h
 +++ b/drivers/net/wireless/ath/ath9k/hw-ops.h
-@@ -39,11 +39,6 @@ static inline void ath9k_hw_set_desc_lin
-       ath9k_hw_ops(ah)->set_desc_link(ds, link);
+@@ -54,13 +54,10 @@ static inline bool ath9k_hw_getisr(struc
+       return ath9k_hw_ops(ah)->get_isr(ah, masked);
+ }
+-static inline void ath9k_hw_filltxdesc(struct ath_hw *ah, void *ds, u32 seglen,
+-                                bool is_firstseg, bool is_lastseg,
+-                                const void *ds0, dma_addr_t buf_addr,
+-                                unsigned int qcu)
++static inline void ath9k_hw_set_txdesc(struct ath_hw *ah, void *ds,
++                                     struct ath_tx_info *i)
+ {
+-      ath9k_hw_ops(ah)->fill_txdesc(ah, ds, seglen, is_firstseg, is_lastseg,
+-                                    ds0, buf_addr, qcu);
++      return ath9k_hw_ops(ah)->set_txdesc(ah, ds, i);
+ }
+ static inline int ath9k_hw_txprocdesc(struct ath_hw *ah, void *ds,
+@@ -69,55 +66,6 @@ static inline int ath9k_hw_txprocdesc(st
+       return ath9k_hw_ops(ah)->proc_txdesc(ah, ds, ts);
+ }
+-static inline void ath9k_hw_set11n_txdesc(struct ath_hw *ah, void *ds,
+-                                        u32 pktLen, enum ath9k_pkt_type type,
+-                                        u32 txPower, u32 keyIx,
+-                                        enum ath9k_key_type keyType,
+-                                        u32 flags)
+-{
+-      ath9k_hw_ops(ah)->set11n_txdesc(ah, ds, pktLen, type, txPower, keyIx,
+-                                    keyType, flags);
+-}
+-
+-static inline void ath9k_hw_set11n_ratescenario(struct ath_hw *ah, void *ds,
+-                                      void *lastds,
+-                                      u32 durUpdateEn, u32 rtsctsRate,
+-                                      u32 rtsctsDuration,
+-                                      struct ath9k_11n_rate_series series[],
+-                                      u32 nseries, u32 flags)
+-{
+-      ath9k_hw_ops(ah)->set11n_ratescenario(ah, ds, lastds, durUpdateEn,
+-                                          rtsctsRate, rtsctsDuration, series,
+-                                          nseries, flags);
+-}
+-
+-static inline void ath9k_hw_set11n_aggr_first(struct ath_hw *ah, void *ds,
+-                                      u32 aggrLen)
+-{
+-      ath9k_hw_ops(ah)->set11n_aggr_first(ah, ds, aggrLen);
+-}
+-
+-static inline void ath9k_hw_set11n_aggr_middle(struct ath_hw *ah, void *ds,
+-                                             u32 numDelims)
+-{
+-      ath9k_hw_ops(ah)->set11n_aggr_middle(ah, ds, numDelims);
+-}
+-
+-static inline void ath9k_hw_set11n_aggr_last(struct ath_hw *ah, void *ds)
+-{
+-      ath9k_hw_ops(ah)->set11n_aggr_last(ah, ds);
+-}
+-
+-static inline void ath9k_hw_clr11n_aggr(struct ath_hw *ah, void *ds)
+-{
+-      ath9k_hw_ops(ah)->clr11n_aggr(ah, ds);
+-}
+-
+-static inline void ath9k_hw_set_clrdmask(struct ath_hw *ah, void *ds, bool val)
+-{
+-      ath9k_hw_ops(ah)->set_clrdmask(ah, ds, val);
+-}
+-
+ static inline void ath9k_hw_antdiv_comb_conf_get(struct ath_hw *ah,
+               struct ath_hw_antcomb_conf *antconf)
+ {
+@@ -233,11 +181,6 @@ static inline void ath9k_hw_restore_chai
+       return ath9k_hw_private_ops(ah)->restore_chainmask(ah);
+ }
+-static inline void ath9k_hw_set_diversity(struct ath_hw *ah, bool value)
+-{
+-      return ath9k_hw_private_ops(ah)->set_diversity(ah, value);
+-}
+-
+ static inline bool ath9k_hw_ani_control(struct ath_hw *ah,
+                                       enum ath9k_ani_cmd cmd, int param)
+ {
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -1496,14 +1496,16 @@ int ath9k_hw_reset(struct ath_hw *ah, st
+       }
+       ah->noise = ath9k_hw_getchan_noise(ah, chan);
++      if ((AR_SREV_9280(ah) && common->bus_ops->ath_bus_type == ATH_PCI) ||
++          (AR_SREV_9300_20_OR_LATER(ah) && IS_CHAN_5GHZ(chan)))
++              bChannelChange = false;
++
+       if (bChannelChange &&
+           (ah->chip_fullsleep != true) &&
+           (ah->curchan != NULL) &&
+           (chan->channel != ah->curchan->channel) &&
+           ((chan->channelFlags & CHANNEL_ALL) ==
+-           (ah->curchan->channelFlags & CHANNEL_ALL)) &&
+-          (!AR_SREV_9280(ah) || AR_DEVID_7010(ah))) {
+-
++           (ah->curchan->channelFlags & CHANNEL_ALL))) {
+               if (ath9k_hw_channel_change(ah, chan)) {
+                       ath9k_hw_loadnf(ah, ah->curchan);
+                       ath9k_hw_start_nfcal(ah, true);
+--- a/drivers/net/wireless/ath/ath9k/hw.h
++++ b/drivers/net/wireless/ath/ath9k/hw.h
+@@ -583,7 +583,6 @@ struct ath_hw_private_ops {
+       bool (*rfbus_req)(struct ath_hw *ah);
+       void (*rfbus_done)(struct ath_hw *ah);
+       void (*restore_chainmask)(struct ath_hw *ah);
+-      void (*set_diversity)(struct ath_hw *ah, bool value);
+       u32 (*compute_pll_control)(struct ath_hw *ah,
+                                  struct ath9k_channel *chan);
+       bool (*ani_control)(struct ath_hw *ah, enum ath9k_ani_cmd cmd,
+@@ -615,30 +614,10 @@ struct ath_hw_ops {
+                         u8 rxchainmask,
+                         bool longcal);
+       bool (*get_isr)(struct ath_hw *ah, enum ath9k_int *masked);
+-      void (*fill_txdesc)(struct ath_hw *ah, void *ds, u32 seglen,
+-                          bool is_firstseg, bool is_is_lastseg,
+-                          const void *ds0, dma_addr_t buf_addr,
+-                          unsigned int qcu);
++      void (*set_txdesc)(struct ath_hw *ah, void *ds,
++                         struct ath_tx_info *i);
+       int (*proc_txdesc)(struct ath_hw *ah, void *ds,
+                          struct ath_tx_status *ts);
+-      void (*set11n_txdesc)(struct ath_hw *ah, void *ds,
+-                            u32 pktLen, enum ath9k_pkt_type type,
+-                            u32 txPower, u8 keyIx,
+-                            enum ath9k_key_type keyType,
+-                            u32 flags);
+-      void (*set11n_ratescenario)(struct ath_hw *ah, void *ds,
+-                              void *lastds,
+-                              u32 durUpdateEn, u32 rtsctsRate,
+-                              u32 rtsctsDuration,
+-                              struct ath9k_11n_rate_series series[],
+-                              u32 nseries, u32 flags);
+-      void (*set11n_aggr_first)(struct ath_hw *ah, void *ds,
+-                                u32 aggrLen);
+-      void (*set11n_aggr_middle)(struct ath_hw *ah, void *ds,
+-                                 u32 numDelims);
+-      void (*set11n_aggr_last)(struct ath_hw *ah, void *ds);
+-      void (*clr11n_aggr)(struct ath_hw *ah, void *ds);
+-      void (*set_clrdmask)(struct ath_hw *ah, void *ds, bool val);
+       void (*antdiv_comb_conf_get)(struct ath_hw *ah,
+                       struct ath_hw_antcomb_conf *antconf);
+       void (*antdiv_comb_conf_set)(struct ath_hw *ah,
+--- a/drivers/net/wireless/ath/ath9k/mac.c
++++ b/drivers/net/wireless/ath/ath9k/mac.c
+@@ -62,18 +62,6 @@ void ath9k_hw_txstart(struct ath_hw *ah,
  }
+ EXPORT_SYMBOL(ath9k_hw_txstart);
  
--static inline void ath9k_hw_get_desc_link(struct ath_hw *ah, void *ds,
--                                        u32 **link)
+-void ath9k_hw_cleartxdesc(struct ath_hw *ah, void *ds)
 -{
--      ath9k_hw_ops(ah)->get_desc_link(ds, link);
+-      struct ar5416_desc *ads = AR5416DESC(ds);
+-
+-      ads->ds_txstatus0 = ads->ds_txstatus1 = 0;
+-      ads->ds_txstatus2 = ads->ds_txstatus3 = 0;
+-      ads->ds_txstatus4 = ads->ds_txstatus5 = 0;
+-      ads->ds_txstatus6 = ads->ds_txstatus7 = 0;
+-      ads->ds_txstatus8 = ads->ds_txstatus9 = 0;
 -}
- static inline bool ath9k_hw_calibrate(struct ath_hw *ah,
-                                     struct ath9k_channel *chan,
-                                     u8 rxchainmask,
+-EXPORT_SYMBOL(ath9k_hw_cleartxdesc);
+-
+ u32 ath9k_hw_numtxpending(struct ath_hw *ah, u32 q)
+ {
+       u32 npend;
+@@ -596,7 +584,7 @@ int ath9k_hw_rxprocdesc(struct ath_hw *a
+       else
+               rs->rs_keyix = ATH9K_RXKEYIX_INVALID;
+-      rs->rs_rate = RXSTATUS_RATE(ah, (&ads));
++      rs->rs_rate = MS(ads.ds_rxstatus0, AR_RxRate);
+       rs->rs_more = (ads.ds_rxstatus1 & AR_RxMore) ? 1 : 0;
+       rs->rs_isaggr = (ads.ds_rxstatus8 & AR_RxAggr) ? 1 : 0;
+--- a/drivers/net/wireless/ath/ath9k/mac.h
++++ b/drivers/net/wireless/ath/ath9k/mac.h
+@@ -17,10 +17,6 @@
+ #ifndef MAC_H
+ #define MAC_H
+-#define RXSTATUS_RATE(ah, ads) (AR_SREV_5416_20_OR_LATER(ah) ?                \
+-                              MS(ads->ds_rxstatus0, AR_RxRate) :      \
+-                              (ads->ds_rxstatus3 >> 2) & 0xFF)
+-
+ #define set11nTries(_series, _index) \
+       (SM((_series)[_index].Tries, AR_XmitDataTries##_index))
+@@ -263,7 +259,11 @@ struct ath_desc {
+ #define ATH9K_TXDESC_VMF              0x0100
+ #define ATH9K_TXDESC_FRAG_IS_ON       0x0200
+ #define ATH9K_TXDESC_LOWRXCHAIN               0x0400
+-#define ATH9K_TXDESC_LDPC             0x00010000
++#define ATH9K_TXDESC_LDPC             0x0800
++#define ATH9K_TXDESC_CLRDMASK         0x1000
++
++#define ATH9K_TXDESC_PAPRD            0x70000
++#define ATH9K_TXDESC_PAPRD_S          16
+ #define ATH9K_RXDESC_INTREQ           0x0020
+@@ -659,6 +659,13 @@ struct ath9k_11n_rate_series {
+       u32 RateFlags;
+ };
++enum aggr_type {
++      AGGR_BUF_NONE,
++      AGGR_BUF_FIRST,
++      AGGR_BUF_MIDDLE,
++      AGGR_BUF_LAST,
++};
++
+ enum ath9k_key_type {
+       ATH9K_KEY_TYPE_CLEAR,
+       ATH9K_KEY_TYPE_WEP,
+@@ -666,6 +673,33 @@ enum ath9k_key_type {
+       ATH9K_KEY_TYPE_TKIP,
+ };
++struct ath_tx_info {
++      u8 qcu;
++
++      bool is_first;
++      bool is_last;
++
++      enum aggr_type aggr;
++      u8 ndelim;
++      u16 aggr_len;
++
++      dma_addr_t link;
++      int pkt_len;
++      u32 flags;
++
++      dma_addr_t buf_addr[4];
++      int buf_len[4];
++
++      struct ath9k_11n_rate_series rates[4];
++      u8 rtscts_rate;
++      bool dur_update;
++
++      enum ath9k_pkt_type type;
++      enum ath9k_key_type keytype;
++      u8 keyix;
++      u8 txpower;
++};
++
+ struct ath_hw;
+ struct ath9k_channel;
+ enum ath9k_int;
+@@ -673,7 +707,6 @@ enum ath9k_int;
+ u32 ath9k_hw_gettxbuf(struct ath_hw *ah, u32 q);
+ void ath9k_hw_puttxbuf(struct ath_hw *ah, u32 q, u32 txdp);
+ void ath9k_hw_txstart(struct ath_hw *ah, u32 q);
+-void ath9k_hw_cleartxdesc(struct ath_hw *ah, void *ds);
+ u32 ath9k_hw_numtxpending(struct ath_hw *ah, u32 q);
+ bool ath9k_hw_updatetxtriglevel(struct ath_hw *ah, bool bIncTrigLevel);
+ bool ath9k_hw_stop_dma_queue(struct ath_hw *ah, u32 q);
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -111,24 +111,29 @@ void ath9k_ps_wakeup(struct ath_softc *s
+ void ath9k_ps_restore(struct ath_softc *sc)
+ {
+       struct ath_common *common = ath9k_hw_common(sc->sc_ah);
++      enum ath9k_power_mode mode;
+       unsigned long flags;
+       spin_lock_irqsave(&sc->sc_pm_lock, flags);
+       if (--sc->ps_usecount != 0)
+               goto unlock;
+-      spin_lock(&common->cc_lock);
+-      ath_hw_cycle_counters_update(common);
+-      spin_unlock(&common->cc_lock);
+-
+       if (sc->ps_idle)
+-              ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_FULL_SLEEP);
++              mode = ATH9K_PM_FULL_SLEEP;
+       else if (sc->ps_enabled &&
+                !(sc->ps_flags & (PS_WAIT_FOR_BEACON |
+                             PS_WAIT_FOR_CAB |
+                             PS_WAIT_FOR_PSPOLL_DATA |
+                             PS_WAIT_FOR_TX_ACK)))
+-              ath9k_hw_setpower(sc->sc_ah, ATH9K_PM_NETWORK_SLEEP);
++              mode = ATH9K_PM_NETWORK_SLEEP;
++      else
++              goto unlock;
++
++      spin_lock(&common->cc_lock);
++      ath_hw_cycle_counters_update(common);
++      spin_unlock(&common->cc_lock);
++
++      ath9k_hw_setpower(sc->sc_ah, mode);
+  unlock:
+       spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
+@@ -247,8 +252,8 @@ static bool ath_prepare_reset(struct ath
+       if (!flush) {
+               if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
+-                      ath_rx_tasklet(sc, 0, true);
+-              ath_rx_tasklet(sc, 0, false);
++                      ath_rx_tasklet(sc, 1, true);
++              ath_rx_tasklet(sc, 1, false);
+       } else {
+               ath_flushrecv(sc);
+       }
+@@ -669,15 +674,15 @@ void ath9k_tasklet(unsigned long data)
+       u32 status = sc->intrstatus;
+       u32 rxmask;
++      ath9k_ps_wakeup(sc);
++      spin_lock(&sc->sc_pcu_lock);
++
+       if ((status & ATH9K_INT_FATAL) ||
+           (status & ATH9K_INT_BB_WATCHDOG)) {
+               ieee80211_queue_work(sc->hw, &sc->hw_reset_work);
+-              return;
++              goto out;
+       }
+-      ath9k_ps_wakeup(sc);
+-      spin_lock(&sc->sc_pcu_lock);
+-
+       /*
+        * Only run the baseband hang check if beacons stop working in AP or
+        * IBSS mode, because it has a high false positive rate. For station
+@@ -725,6 +730,7 @@ void ath9k_tasklet(unsigned long data)
+               if (status & ATH9K_INT_GENTIMER)
+                       ath_gen_timer_isr(sc->sc_ah);
++out:
+       /* re-enable hardware interrupt */
+       ath9k_hw_enable_interrupts(ah);
+@@ -2015,6 +2021,7 @@ static void ath9k_config_bss(struct ath_
+               /* Stop ANI */
+               sc->sc_flags &= ~SC_OP_ANI_RUN;
+               del_timer_sync(&common->ani.timer);
++              memset(&sc->caldata, 0, sizeof(sc->caldata));
+       }
+ }
+--- a/drivers/net/wireless/ath/ath9k/pci.c
++++ b/drivers/net/wireless/ath/ath9k/pci.c
+@@ -332,16 +332,16 @@ static int ath_pci_resume(struct device 
+       if ((val & 0x0000ff00) != 0)
+               pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
++      ath9k_ps_wakeup(sc);
+       /* Enable LED */
+       ath9k_hw_cfg_output(sc->sc_ah, sc->sc_ah->led_pin,
+                           AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+-      ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 1);
++      ath9k_hw_set_gpio(sc->sc_ah, sc->sc_ah->led_pin, 0);
+         /*
+          * Reset key cache to sane defaults (all entries cleared) instead of
+          * semi-random values after suspend/resume.
+          */
+-      ath9k_ps_wakeup(sc);
+       ath9k_cmn_init_crypto(sc->sc_ah);
+       ath9k_ps_restore(sc);
+--- a/drivers/net/wireless/ath/ath9k/recv.c
++++ b/drivers/net/wireless/ath/ath9k/recv.c
+@@ -1839,7 +1839,7 @@ int ath_rx_tasklet(struct ath_softc *sc,
+                * If we're asked to flush receive queue, directly
+                * chain it back at the queue without processing it.
+                */
+-              if (flush)
++              if (sc->sc_flags & SC_OP_RXFLUSH)
+                       goto requeue_drop_frag;
+               retval = ath9k_rx_skb_preprocess(common, hw, hdr, &rs,
+@@ -1967,7 +1967,8 @@ requeue:
+               } else {
+                       list_move_tail(&bf->list, &sc->rx.rxbuf);
+                       ath_rx_buf_link(sc, bf);
+-                      ath9k_hw_rxena(ah);
++                      if (!flush)
++                              ath9k_hw_rxena(ah);
+               }
+       } while (1);
 --- a/drivers/net/wireless/ath/ath9k/xmit.c
 +++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -53,7 +53,7 @@ static void ath_tx_complete_buf(struct a
-                               struct ath_txq *txq, struct list_head *bf_q,
+@@ -56,10 +56,9 @@ static void ath_tx_complete_buf(struct a
                                struct ath_tx_status *ts, int txok, int sendbar);
  static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
--                           struct list_head *head);
-+                           struct list_head *head, bool internal);
- static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf, int len);
+                            struct list_head *head, bool internal);
+-static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf, int len);
  static void ath_tx_rc_status(struct ath_softc *sc, struct ath_buf *bf,
                             struct ath_tx_status *ts, int nframes, int nbad,
-@@ -377,8 +377,7 @@ static void ath_tx_complete_aggr(struct 
+-                           int txok, bool update_rc);
++                           int txok);
+ static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
+                             int seqno);
+ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc,
+@@ -263,6 +262,7 @@ static void ath_tx_set_retry(struct ath_
+                            struct sk_buff *skb)
+ {
+       struct ath_frame_info *fi = get_frame_info(skb);
++      struct ath_buf *bf = fi->bf;
+       struct ieee80211_hdr *hdr;
+       TX_STAT_INC(txq->axq_qnum, a_retries);
+@@ -271,6 +271,8 @@ static void ath_tx_set_retry(struct ath_
+       hdr = (struct ieee80211_hdr *)skb->data;
+       hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_RETRY);
++      dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
++              sizeof(*hdr), DMA_TO_DEVICE);
+ }
+ static struct ath_buf *ath_tx_get_buffer(struct ath_softc *sc)
+@@ -390,11 +392,9 @@ static void ath_tx_complete_aggr(struct 
+               while (bf) {
                        bf_next = bf->bf_next;
  
-                       bf->bf_state.bf_type |= BUF_XRETRY;
--                      if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) ||
--                          !bf->bf_stale || bf_next != NULL)
-+                      if (!bf->bf_stale || bf_next != NULL)
+-                      bf->bf_state.bf_type |= BUF_XRETRY;
+                       if (!bf->bf_stale || bf_next != NULL)
                                list_move_tail(&bf->list, &bf_head);
  
-                       ath_tx_rc_status(sc, bf, ts, 1, 1, 0, false);
-@@ -463,20 +462,14 @@ static void ath_tx_complete_aggr(struct 
+-                      ath_tx_rc_status(sc, bf, ts, 1, 1, 0, false);
+                       ath_tx_complete_buf(sc, bf, txq, &bf_head, ts,
+                               0, 0);
+@@ -470,7 +470,6 @@ static void ath_tx_complete_aggr(struct 
+                               clear_filter = true;
+                               txpending = 1;
+                       } else {
+-                              bf->bf_state.bf_type |= BUF_XRETRY;
+                               txfail = 1;
+                               sendbar = 1;
+                               txfail_cnt++;
+@@ -497,17 +496,14 @@ static void ath_tx_complete_aggr(struct 
+                       if (rc_update && (acked_cnt == 1 || txfail_cnt == 1)) {
+                               memcpy(tx_info->control.rates, rates, sizeof(rates));
+-                              ath_tx_rc_status(sc, bf, ts, nframes, nbad, txok, true);
++                              ath_tx_rc_status(sc, bf, ts, nframes, nbad, txok);
+                               rc_update = false;
+-                      } else {
+-                              ath_tx_rc_status(sc, bf, ts, nframes, nbad, txok, false);
+                       }
+                       ath_tx_complete_buf(sc, bf, txq, &bf_head, ts,
+                               !txfail, sendbar);
+               } else {
+                       /* retry the un-acked ones */
+-                      ath9k_hw_set_clrdmask(sc->sc_ah, bf->bf_desc, false);
+                       if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)) {
+                               if (bf->bf_next == NULL && bf_last->bf_stale) {
+                                       struct ath_buf *tbf;
+@@ -523,26 +519,13 @@ static void ath_tx_complete_aggr(struct 
+                                               ath_tx_update_baw(sc, tid, seqno);
+                                               spin_unlock_bh(&txq->axq_lock);
+-                                              bf->bf_state.bf_type |=
+-                                                      BUF_XRETRY;
+-                                              ath_tx_rc_status(sc, bf, ts, nframes,
+-                                                              nbad, 0, false);
+                                               ath_tx_complete_buf(sc, bf, txq,
+                                                                   &bf_head,
+-                                                                  ts, 0, 0);
++                                                                  ts, 0, 1);
+                                               break;
+                                       }
+-                                      ath9k_hw_cleartxdesc(sc->sc_ah,
+-                                                           tbf->bf_desc);
+                                       fi->bf = tbf;
+-                              } else {
+-                                      /*
+-                                       * Clear descriptor status words for
+-                                       * software retry
+-                                       */
+-                                      ath9k_hw_cleartxdesc(sc->sc_ah,
+-                                                           bf->bf_desc);
+                               }
                        }
+@@ -778,7 +761,7 @@ static enum ATH_AGGR_STATUS ath_tx_form_
+               if (!bf)
+                       continue;
+-              bf->bf_state.bf_type |= BUF_AMPDU;
++              bf->bf_state.bf_type = BUF_AMPDU | BUF_AGGR;
+               seqno = bf->bf_state.seqno;
+               if (!bf_first)
+                       bf_first = bf;
+@@ -805,8 +788,7 @@ static enum ATH_AGGR_STATUS ath_tx_form_
                }
  
--              if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
--                  bf_next == NULL) {
--                      /*
--                       * Make sure the last desc is reclaimed if it
--                       * not a holding desc.
--                       */
--                      if (!bf_last->bf_stale)
--                              list_move_tail(&bf->list, &bf_head);
--                      else
--                              INIT_LIST_HEAD(&bf_head);
--              } else {
--                      BUG_ON(list_empty(bf_q));
-+              /*
-+               * Make sure the last desc is reclaimed if it
-+               * not a holding desc.
-+               */
-+              if (!bf_last->bf_stale || bf_next != NULL)
-                       list_move_tail(&bf->list, &bf_head);
+               tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
+-              if (nframes && ((tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) ||
+-                      !(tx_info->control.rates[0].flags & IEEE80211_TX_RC_MCS)))
++              if (nframes && (tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE))
+                       break;
+               /* do not exceed subframe limit */
+@@ -828,20 +810,17 @@ static enum ATH_AGGR_STATUS ath_tx_form_
+               nframes++;
+               bf->bf_next = NULL;
+-              ath9k_hw_set_desc_link(sc->sc_ah, bf->bf_desc, 0);
+               /* link buffers of this frame to the aggregate */
+               if (!fi->retries)
+                       ath_tx_addto_baw(sc, tid, seqno);
+-              ath9k_hw_set11n_aggr_middle(sc->sc_ah, bf->bf_desc, ndelim);
++              bf->bf_state.ndelim = ndelim;
+               __skb_unlink(skb, &tid->buf_q);
+               list_add_tail(&bf->list, bf_q);
+-              if (bf_prev) {
++              if (bf_prev)
+                       bf_prev->bf_next = bf;
+-                      ath9k_hw_set_desc_link(sc->sc_ah, bf_prev->bf_desc,
+-                                             bf->bf_daddr);
 -              }
++
+               bf_prev = bf;
+       } while (!skb_queue_empty(&tid->buf_q));
+@@ -852,12 +831,245 @@ static enum ATH_AGGR_STATUS ath_tx_form_
+ #undef PADBYTES
+ }
++/*
++ * rix - rate index
++ * pktlen - total bytes (delims + data + fcs + pads + pad delims)
++ * width  - 0 for 20 MHz, 1 for 40 MHz
++ * half_gi - to use 4us v/s 3.6 us for symbol time
++ */
++static u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, int pktlen,
++                          int width, int half_gi, bool shortPreamble)
++{
++      u32 nbits, nsymbits, duration, nsymbols;
++      int streams;
++
++      /* find number of symbols: PLCP + data */
++      streams = HT_RC_2_STREAMS(rix);
++      nbits = (pktlen << 3) + OFDM_PLCP_BITS;
++      nsymbits = bits_per_symbol[rix % 8][width] * streams;
++      nsymbols = (nbits + nsymbits - 1) / nsymbits;
++
++      if (!half_gi)
++              duration = SYMBOL_TIME(nsymbols);
++      else
++              duration = SYMBOL_TIME_HALFGI(nsymbols);
++
++      /* addup duration for legacy/ht training and signal fields */
++      duration += L_STF + L_LTF + L_SIG + HT_SIG + HT_STF + HT_LTF(streams);
++
++      return duration;
++}
++
++static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf,
++                           struct ath_tx_info *info, int len)
++{
++      struct ath_hw *ah = sc->sc_ah;
++      struct sk_buff *skb;
++      struct ieee80211_tx_info *tx_info;
++      struct ieee80211_tx_rate *rates;
++      const struct ieee80211_rate *rate;
++      struct ieee80211_hdr *hdr;
++      int i;
++      u8 rix = 0;
++
++      skb = bf->bf_mpdu;
++      tx_info = IEEE80211_SKB_CB(skb);
++      rates = tx_info->control.rates;
++      hdr = (struct ieee80211_hdr *)skb->data;
++
++      /* set dur_update_en for l-sig computation except for PS-Poll frames */
++      info->dur_update = !ieee80211_is_pspoll(hdr->frame_control);
++
++      /*
++       * We check if Short Preamble is needed for the CTS rate by
++       * checking the BSS's global flag.
++       * But for the rate series, IEEE80211_TX_RC_USE_SHORT_PREAMBLE is used.
++       */
++      rate = ieee80211_get_rts_cts_rate(sc->hw, tx_info);
++      info->rtscts_rate = rate->hw_value;
++      if (sc->sc_flags & SC_OP_PREAMBLE_SHORT)
++              info->rtscts_rate |= rate->hw_value_short;
++
++      for (i = 0; i < 4; i++) {
++              bool is_40, is_sgi, is_sp;
++              int phy;
++
++              if (!rates[i].count || (rates[i].idx < 0))
++                      continue;
++
++              rix = rates[i].idx;
++              info->rates[i].Tries = rates[i].count;
++
++                  if (rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
++                      info->rates[i].RateFlags |= ATH9K_RATESERIES_RTS_CTS;
++                      info->flags |= ATH9K_TXDESC_RTSENA;
++              } else if (rates[i].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
++                      info->rates[i].RateFlags |= ATH9K_RATESERIES_RTS_CTS;
++                      info->flags |= ATH9K_TXDESC_CTSENA;
++              }
++
++              if (rates[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
++                      info->rates[i].RateFlags |= ATH9K_RATESERIES_2040;
++              if (rates[i].flags & IEEE80211_TX_RC_SHORT_GI)
++                      info->rates[i].RateFlags |= ATH9K_RATESERIES_HALFGI;
++
++              is_sgi = !!(rates[i].flags & IEEE80211_TX_RC_SHORT_GI);
++              is_40 = !!(rates[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH);
++              is_sp = !!(rates[i].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE);
++
++              if (rates[i].flags & IEEE80211_TX_RC_MCS) {
++                      /* MCS rates */
++                      info->rates[i].Rate = rix | 0x80;
++                      info->rates[i].ChSel = ath_txchainmask_reduction(sc,
++                                      ah->txchainmask, info->rates[i].Rate);
++                      info->rates[i].PktDuration = ath_pkt_duration(sc, rix, len,
++                               is_40, is_sgi, is_sp);
++                      if (rix < 8 && (tx_info->flags & IEEE80211_TX_CTL_STBC))
++                              info->rates[i].RateFlags |= ATH9K_RATESERIES_STBC;
++                      continue;
++              }
++
++              /* legacy rates */
++              if ((tx_info->band == IEEE80211_BAND_2GHZ) &&
++                  !(rate->flags & IEEE80211_RATE_ERP_G))
++                      phy = WLAN_RC_PHY_CCK;
++              else
++                      phy = WLAN_RC_PHY_OFDM;
++
++              rate = &sc->sbands[tx_info->band].bitrates[rates[i].idx];
++              info->rates[i].Rate = rate->hw_value;
++              if (rate->hw_value_short) {
++                      if (rates[i].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
++                              info->rates[i].Rate |= rate->hw_value_short;
++              } else {
++                      is_sp = false;
++              }
++
++              if (bf->bf_state.bfs_paprd)
++                      info->rates[i].ChSel = ah->txchainmask;
++              else
++                      info->rates[i].ChSel = ath_txchainmask_reduction(sc,
++                                      ah->txchainmask, info->rates[i].Rate);
++
++              info->rates[i].PktDuration = ath9k_hw_computetxtime(sc->sc_ah,
++                      phy, rate->bitrate * 100, len, rix, is_sp);
++      }
++
++      /* For AR5416 - RTS cannot be followed by a frame larger than 8K */
++      if (bf_isaggr(bf) && (len > sc->sc_ah->caps.rts_aggr_limit))
++              info->flags &= ~ATH9K_TXDESC_RTSENA;
++
++      /* ATH9K_TXDESC_RTSENA and ATH9K_TXDESC_CTSENA are mutually exclusive. */
++      if (info->flags & ATH9K_TXDESC_RTSENA)
++              info->flags &= ~ATH9K_TXDESC_CTSENA;
++}
++
++static enum ath9k_pkt_type get_hw_packet_type(struct sk_buff *skb)
++{
++      struct ieee80211_hdr *hdr;
++      enum ath9k_pkt_type htype;
++      __le16 fc;
++
++      hdr = (struct ieee80211_hdr *)skb->data;
++      fc = hdr->frame_control;
++
++      if (ieee80211_is_beacon(fc))
++              htype = ATH9K_PKT_TYPE_BEACON;
++      else if (ieee80211_is_probe_resp(fc))
++              htype = ATH9K_PKT_TYPE_PROBE_RESP;
++      else if (ieee80211_is_atim(fc))
++              htype = ATH9K_PKT_TYPE_ATIM;
++      else if (ieee80211_is_pspoll(fc))
++              htype = ATH9K_PKT_TYPE_PSPOLL;
++      else
++              htype = ATH9K_PKT_TYPE_NORMAL;
++
++      return htype;
++}
++
++static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf,
++                           struct ath_txq *txq, int len)
++{
++      struct ath_hw *ah = sc->sc_ah;
++      struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
++      struct ath_buf *bf_first = bf;
++      struct ath_tx_info info;
++      bool aggr = !!(bf->bf_state.bf_type & BUF_AGGR);
++
++      memset(&info, 0, sizeof(info));
++      info.is_first = true;
++      info.is_last = true;
++      info.txpower = MAX_RATE_POWER;
++      info.qcu = txq->axq_qnum;
++
++      info.flags = ATH9K_TXDESC_INTREQ;
++      if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK)
++              info.flags |= ATH9K_TXDESC_NOACK;
++      if (tx_info->flags & IEEE80211_TX_CTL_LDPC)
++              info.flags |= ATH9K_TXDESC_LDPC;
++
++      ath_buf_set_rate(sc, bf, &info, len);
++
++      if (tx_info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT)
++              info.flags |= ATH9K_TXDESC_CLRDMASK;
++
++      if (bf->bf_state.bfs_paprd)
++              info.flags |= (u32) bf->bf_state.bfs_paprd << ATH9K_TXDESC_PAPRD_S;
++
++
++      while (bf) {
++              struct sk_buff *skb = bf->bf_mpdu;
++              struct ath_frame_info *fi = get_frame_info(skb);
++              struct ieee80211_hdr *hdr;
++              int padpos, padsize;
++
++              info.type = get_hw_packet_type(skb);
++              if (bf->bf_next)
++                      info.link = bf->bf_next->bf_daddr;
 +              else
-+                      INIT_LIST_HEAD(&bf_head);
++                      info.link = 0;
++
++              if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
++                      hdr = (struct ieee80211_hdr *)skb->data;
++                      padpos = ath9k_cmn_padpos(hdr->frame_control);
++                      padsize = padpos & 3;
++
++                      info.buf_addr[0] = bf->bf_buf_addr;
++                      info.buf_len[0] = padpos + padsize;
++                      info.buf_addr[1] = info.buf_addr[0] + padpos;
++                      info.buf_len[1] = skb->len - padpos;
++              } else {
++                      info.buf_addr[0] = bf->bf_buf_addr;
++                      info.buf_len[0] = skb->len;
++              }
++
++              info.pkt_len = fi->framelen;
++              info.keyix = fi->keyix;
++              info.keytype = fi->keytype;
++
++              if (aggr) {
++                      if (bf == bf_first)
++                              info.aggr = AGGR_BUF_FIRST;
++                      else if (!bf->bf_next)
++                              info.aggr = AGGR_BUF_LAST;
++                      else
++                              info.aggr = AGGR_BUF_MIDDLE;
++
++                      info.ndelim = bf->bf_state.ndelim;
++                      info.aggr_len = len;
++              }
++
++              ath9k_hw_set_txdesc(ah, bf->bf_desc, &info);
++              bf = bf->bf_next;
++      }
++}
++
+ static void ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq,
+                             struct ath_atx_tid *tid)
+ {
+       struct ath_buf *bf;
+       enum ATH_AGGR_STATUS status;
+-      struct ath_frame_info *fi;
++      struct ieee80211_tx_info *tx_info;
+       struct list_head bf_q;
+       int aggr_len;
+@@ -878,34 +1090,25 @@ static void ath_tx_sched_aggr(struct ath
+               bf = list_first_entry(&bf_q, struct ath_buf, list);
+               bf->bf_lastbf = list_entry(bf_q.prev, struct ath_buf, list);
++              tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
+               if (tid->ac->clear_ps_filter) {
+                       tid->ac->clear_ps_filter = false;
+-                      ath9k_hw_set_clrdmask(sc->sc_ah, bf->bf_desc, true);
++                      tx_info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
++              } else {
++                      tx_info->flags &= ~IEEE80211_TX_CTL_CLEAR_PS_FILT;
+               }
  
-               if (!txpending || (tid->state & AGGR_CLEANUP)) {
-                       /*
-@@ -837,7 +830,7 @@ static void ath_tx_sched_aggr(struct ath
-                       bf->bf_state.bf_type &= ~BUF_AGGR;
-                       ath9k_hw_clr11n_aggr(sc->sc_ah, bf->bf_desc);
-                       ath_buf_set_rate(sc, bf, fi->framelen);
--                      ath_tx_txqaddbuf(sc, txq, &bf_q);
-+                      ath_tx_txqaddbuf(sc, txq, &bf_q, false);
-                       continue;
+               /* if only one frame, send as non-aggregate */
+               if (bf == bf->bf_lastbf) {
+-                      fi = get_frame_info(bf->bf_mpdu);
+-
+-                      bf->bf_state.bf_type &= ~BUF_AGGR;
+-                      ath9k_hw_clr11n_aggr(sc->sc_ah, bf->bf_desc);
+-                      ath_buf_set_rate(sc, bf, fi->framelen);
+-                      ath_tx_txqaddbuf(sc, txq, &bf_q, false);
+-                      continue;
++                      aggr_len = get_frame_info(bf->bf_mpdu)->framelen;
++                      bf->bf_state.bf_type = BUF_AMPDU;
++              } else {
++                      TX_STAT_INC(txq->axq_qnum, a_aggr);
                }
  
-@@ -849,7 +842,7 @@ static void ath_tx_sched_aggr(struct ath
-               /* anchor last desc of aggregate */
-               ath9k_hw_set11n_aggr_last(sc->sc_ah, bf->bf_lastbf->bf_desc);
+-              /* setup first desc of aggregate */
+-              bf->bf_state.bf_type |= BUF_AGGR;
+-              ath_buf_set_rate(sc, bf, aggr_len);
+-              ath9k_hw_set11n_aggr_first(sc->sc_ah, bf->bf_desc, aggr_len);
+-
+-              /* anchor last desc of aggregate */
+-              ath9k_hw_set11n_aggr_last(sc->sc_ah, bf->bf_lastbf->bf_desc);
+-
++              ath_tx_fill_desc(sc, bf, txq, aggr_len);
+               ath_tx_txqaddbuf(sc, txq, &bf_q, false);
+-              TX_STAT_INC(txq->axq_qnum, a_aggr);
+-
+       } while (txq->axq_ampdu_depth < ATH_AGGR_MIN_QDEPTH &&
+                status != ATH_AGGR_BAW_CLOSED);
+ }
+@@ -1483,7 +1686,7 @@ static void ath_tx_send_ampdu(struct ath
+       if (!bf)
+               return;
  
--              ath_tx_txqaddbuf(sc, txq, &bf_q);
-+              ath_tx_txqaddbuf(sc, txq, &bf_q, false);
-               TX_STAT_INC(txq->axq_qnum, a_aggr);
+-      bf->bf_state.bf_type |= BUF_AMPDU;
++      bf->bf_state.bf_type = BUF_AMPDU;
+       INIT_LIST_HEAD(&bf_head);
+       list_add(&bf->list, &bf_head);
  
-       } while (txq->axq_ampdu_depth < ATH_AGGR_MIN_QDEPTH &&
-@@ -1085,7 +1078,6 @@ struct ath_txq *ath_txq_setup(struct ath
-               txq->txq_headidx = txq->txq_tailidx = 0;
-               for (i = 0; i < ATH_TXFIFO_DEPTH; i++)
-                       INIT_LIST_HEAD(&txq->txq_fifo[i]);
--              INIT_LIST_HEAD(&txq->txq_fifo_pending);
-       }
-       return &sc->tx.txq[axq_qnum];
+@@ -1493,7 +1696,7 @@ static void ath_tx_send_ampdu(struct ath
+       /* Queue to h/w without aggregation */
+       TX_STAT_INC(txctl->txq->axq_qnum, a_queued_hw);
+       bf->bf_lastbf = bf;
+-      ath_buf_set_rate(sc, bf, fi->framelen);
++      ath_tx_fill_desc(sc, bf, txctl->txq, fi->framelen);
+       ath_tx_txqaddbuf(sc, txctl->txq, &bf_head, false);
+ }
+@@ -1513,41 +1716,18 @@ static void ath_tx_send_normal(struct at
+       INIT_LIST_HEAD(&bf_head);
+       list_add_tail(&bf->list, &bf_head);
+-      bf->bf_state.bf_type &= ~BUF_AMPDU;
++      bf->bf_state.bf_type = 0;
+       /* update starting sequence number for subsequent ADDBA request */
+       if (tid)
+               INCR(tid->seq_start, IEEE80211_SEQ_MAX);
+       bf->bf_lastbf = bf;
+-      ath_buf_set_rate(sc, bf, fi->framelen);
++      ath_tx_fill_desc(sc, bf, txq, fi->framelen);
+       ath_tx_txqaddbuf(sc, txq, &bf_head, false);
+       TX_STAT_INC(txq->axq_qnum, queued);
  }
-@@ -1155,13 +1147,8 @@ static bool bf_is_ampdu_not_probing(stru
-     return bf_isampdu(bf) && !(info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE);
+-static enum ath9k_pkt_type get_hw_packet_type(struct sk_buff *skb)
+-{
+-      struct ieee80211_hdr *hdr;
+-      enum ath9k_pkt_type htype;
+-      __le16 fc;
+-
+-      hdr = (struct ieee80211_hdr *)skb->data;
+-      fc = hdr->frame_control;
+-
+-      if (ieee80211_is_beacon(fc))
+-              htype = ATH9K_PKT_TYPE_BEACON;
+-      else if (ieee80211_is_probe_resp(fc))
+-              htype = ATH9K_PKT_TYPE_PROBE_RESP;
+-      else if (ieee80211_is_atim(fc))
+-              htype = ATH9K_PKT_TYPE_ATIM;
+-      else if (ieee80211_is_pspoll(fc))
+-              htype = ATH9K_PKT_TYPE_PSPOLL;
+-      else
+-              htype = ATH9K_PKT_TYPE_NORMAL;
+-
+-      return htype;
+-}
+-
+ static void setup_frame_info(struct ieee80211_hw *hw, struct sk_buff *skb,
+                            int framelen)
+ {
+@@ -1575,51 +1755,6 @@ static void setup_frame_info(struct ieee
+       fi->framelen = framelen;
  }
  
+-static int setup_tx_flags(struct sk_buff *skb)
+-{
+-      struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
+-      int flags = 0;
+-
+-      flags |= ATH9K_TXDESC_INTREQ;
+-
+-      if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK)
+-              flags |= ATH9K_TXDESC_NOACK;
+-
+-      if (tx_info->flags & IEEE80211_TX_CTL_LDPC)
+-              flags |= ATH9K_TXDESC_LDPC;
+-
+-      return flags;
+-}
+-
 -/*
-- * Drain a given TX queue (could be Beacon or Data)
-- *
-- * This assumes output has been stopped and
-- * we do not need to block ath_tx_tasklet.
+- * rix - rate index
+- * pktlen - total bytes (delims + data + fcs + pads + pad delims)
+- * width  - 0 for 20 MHz, 1 for 40 MHz
+- * half_gi - to use 4us v/s 3.6 us for symbol time
 - */
--void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq, bool retry_tx)
-+static void ath_drain_txq_list(struct ath_softc *sc, struct ath_txq *txq,
-+                             struct list_head *list, bool retry_tx)
+-static u32 ath_pkt_duration(struct ath_softc *sc, u8 rix, int pktlen,
+-                          int width, int half_gi, bool shortPreamble)
+-{
+-      u32 nbits, nsymbits, duration, nsymbols;
+-      int streams;
+-
+-      /* find number of symbols: PLCP + data */
+-      streams = HT_RC_2_STREAMS(rix);
+-      nbits = (pktlen << 3) + OFDM_PLCP_BITS;
+-      nsymbits = bits_per_symbol[rix % 8][width] * streams;
+-      nsymbols = (nbits + nsymbits - 1) / nsymbits;
+-
+-      if (!half_gi)
+-              duration = SYMBOL_TIME(nsymbols);
+-      else
+-              duration = SYMBOL_TIME_HALFGI(nsymbols);
+-
+-      /* addup duration for legacy/ht training and signal fields */
+-      duration += L_STF + L_LTF + L_SIG + HT_SIG + HT_STF + HT_LTF(streams);
+-
+-      return duration;
+-}
+-
+ u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate)
  {
-       struct ath_buf *bf, *lastbf;
-       struct list_head bf_head;
-@@ -1170,93 +1157,63 @@ void ath_draintxq(struct ath_softc *sc, 
-       memset(&ts, 0, sizeof(ts));
-       INIT_LIST_HEAD(&bf_head);
--      for (;;) {
--              spin_lock_bh(&txq->axq_lock);
-+      while (!list_empty(list)) {
-+              bf = list_first_entry(list, struct ath_buf, list);
+       struct ath_hw *ah = sc->sc_ah;
+@@ -1632,118 +1767,6 @@ u8 ath_txchainmask_reduction(struct ath_
+               return chainmask;
+ }
  
--              if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
--                      if (list_empty(&txq->txq_fifo[txq->txq_tailidx])) {
--                              txq->txq_headidx = txq->txq_tailidx = 0;
--                              spin_unlock_bh(&txq->axq_lock);
--                              break;
--                      } else {
--                              bf = list_first_entry(&txq->txq_fifo[txq->txq_tailidx],
--                                                    struct ath_buf, list);
--                      }
--              } else {
--                      if (list_empty(&txq->axq_q)) {
--                              txq->axq_link = NULL;
--                              spin_unlock_bh(&txq->axq_lock);
--                              break;
--                      }
--                      bf = list_first_entry(&txq->axq_q, struct ath_buf,
--                                            list);
+-static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf, int len)
+-{
+-      struct ath_hw *ah = sc->sc_ah;
+-      struct ath9k_11n_rate_series series[4];
+-      struct sk_buff *skb;
+-      struct ieee80211_tx_info *tx_info;
+-      struct ieee80211_tx_rate *rates;
+-      const struct ieee80211_rate *rate;
+-      struct ieee80211_hdr *hdr;
+-      int i, flags = 0;
+-      u8 rix = 0, ctsrate = 0;
+-      bool is_pspoll;
 -
--                      if (bf->bf_stale) {
--                              list_del(&bf->list);
--                              spin_unlock_bh(&txq->axq_lock);
-+              if (bf->bf_stale) {
-+                      list_del(&bf->list);
--                              ath_tx_return_buffer(sc, bf);
--                              continue;
--                      }
-+                      ath_tx_return_buffer(sc, bf);
-+                      continue;
-               }
-               lastbf = bf->bf_lastbf;
+-      memset(series, 0, sizeof(struct ath9k_11n_rate_series) * 4);
+-
+-      skb = bf->bf_mpdu;
+-      tx_info = IEEE80211_SKB_CB(skb);
+-      rates = tx_info->control.rates;
+-      hdr = (struct ieee80211_hdr *)skb->data;
+-      is_pspoll = ieee80211_is_pspoll(hdr->frame_control);
+-
+-      /*
+-       * We check if Short Preamble is needed for the CTS rate by
+-       * checking the BSS's global flag.
+-       * But for the rate series, IEEE80211_TX_RC_USE_SHORT_PREAMBLE is used.
+-       */
+-      rate = ieee80211_get_rts_cts_rate(sc->hw, tx_info);
+-      ctsrate = rate->hw_value;
+-      if (sc->sc_flags & SC_OP_PREAMBLE_SHORT)
+-              ctsrate |= rate->hw_value_short;
+-
+-      for (i = 0; i < 4; i++) {
+-              bool is_40, is_sgi, is_sp;
+-              int phy;
+-
+-              if (!rates[i].count || (rates[i].idx < 0))
+-                      continue;
+-
+-              rix = rates[i].idx;
+-              series[i].Tries = rates[i].count;
+-
+-                  if (rates[i].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
+-                      series[i].RateFlags |= ATH9K_RATESERIES_RTS_CTS;
+-                      flags |= ATH9K_TXDESC_RTSENA;
+-              } else if (rates[i].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
+-                      series[i].RateFlags |= ATH9K_RATESERIES_RTS_CTS;
+-                      flags |= ATH9K_TXDESC_CTSENA;
+-              }
+-
+-              if (rates[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
+-                      series[i].RateFlags |= ATH9K_RATESERIES_2040;
+-              if (rates[i].flags & IEEE80211_TX_RC_SHORT_GI)
+-                      series[i].RateFlags |= ATH9K_RATESERIES_HALFGI;
+-
+-              is_sgi = !!(rates[i].flags & IEEE80211_TX_RC_SHORT_GI);
+-              is_40 = !!(rates[i].flags & IEEE80211_TX_RC_40_MHZ_WIDTH);
+-              is_sp = !!(rates[i].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE);
+-
+-              if (rates[i].flags & IEEE80211_TX_RC_MCS) {
+-                      /* MCS rates */
+-                      series[i].Rate = rix | 0x80;
+-                      series[i].ChSel = ath_txchainmask_reduction(sc,
+-                                      ah->txchainmask, series[i].Rate);
+-                      series[i].PktDuration = ath_pkt_duration(sc, rix, len,
+-                               is_40, is_sgi, is_sp);
+-                      if (rix < 8 && (tx_info->flags & IEEE80211_TX_CTL_STBC))
+-                              series[i].RateFlags |= ATH9K_RATESERIES_STBC;
+-                      continue;
+-              }
+-
+-              /* legacy rates */
+-              if ((tx_info->band == IEEE80211_BAND_2GHZ) &&
+-                  !(rate->flags & IEEE80211_RATE_ERP_G))
+-                      phy = WLAN_RC_PHY_CCK;
+-              else
+-                      phy = WLAN_RC_PHY_OFDM;
 -
--              if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
--                      list_cut_position(&bf_head,
--                                        &txq->txq_fifo[txq->txq_tailidx],
--                                        &lastbf->list);
--                      INCR(txq->txq_tailidx, ATH_TXFIFO_DEPTH);
+-              rate = &sc->sbands[tx_info->band].bitrates[rates[i].idx];
+-              series[i].Rate = rate->hw_value;
+-              if (rate->hw_value_short) {
+-                      if (rates[i].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
+-                              series[i].Rate |= rate->hw_value_short;
 -              } else {
--                      /* remove ath_buf's of the same mpdu from txq */
--                      list_cut_position(&bf_head, &txq->axq_q, &lastbf->list);
+-                      is_sp = false;
 -              }
-+              list_cut_position(&bf_head, list, &lastbf->list);
+-
+-              if (bf->bf_state.bfs_paprd)
+-                      series[i].ChSel = ah->txchainmask;
+-              else
+-                      series[i].ChSel = ath_txchainmask_reduction(sc,
+-                                      ah->txchainmask, series[i].Rate);
+-
+-              series[i].PktDuration = ath9k_hw_computetxtime(sc->sc_ah,
+-                      phy, rate->bitrate * 100, len, rix, is_sp);
+-      }
+-
+-      /* For AR5416 - RTS cannot be followed by a frame larger than 8K */
+-      if (bf_isaggr(bf) && (len > sc->sc_ah->caps.rts_aggr_limit))
+-              flags &= ~ATH9K_TXDESC_RTSENA;
+-
+-      /* ATH9K_TXDESC_RTSENA and ATH9K_TXDESC_CTSENA are mutually exclusive. */
+-      if (flags & ATH9K_TXDESC_RTSENA)
+-              flags &= ~ATH9K_TXDESC_CTSENA;
+-
+-      /* set dur_update_en for l-sig computation except for PS-Poll frames */
+-      ath9k_hw_set11n_ratescenario(sc->sc_ah, bf->bf_desc,
+-                                   bf->bf_lastbf->bf_desc,
+-                                   !is_pspoll, ctsrate,
+-                                   0, series, 4, flags);
+-
+-}
+-
+ /*
+  * Assign a descriptor (and sequence number if necessary,
+  * and map buffer for DMA. Frees skb on error
+@@ -1753,13 +1776,10 @@ static struct ath_buf *ath_tx_setup_buff
+                                          struct ath_atx_tid *tid,
+                                          struct sk_buff *skb)
+ {
+-      struct ath_hw *ah = sc->sc_ah;
+       struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+       struct ath_frame_info *fi = get_frame_info(skb);
+       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+       struct ath_buf *bf;
+-      struct ath_desc *ds;
+-      int frm_type;
+       u16 seqno;
+       bf = ath_tx_get_buffer(sc);
+@@ -1777,7 +1797,6 @@ static struct ath_buf *ath_tx_setup_buff
+               bf->bf_state.seqno = seqno;
+       }
  
-               txq->axq_depth--;
-               if (bf_is_ampdu_not_probing(bf))
-                       txq->axq_ampdu_depth--;
--              spin_unlock_bh(&txq->axq_lock);
+-      bf->bf_flags = setup_tx_flags(skb);
+       bf->bf_mpdu = skb;
  
-+              spin_unlock_bh(&txq->axq_lock);
-               if (bf_isampdu(bf))
-                       ath_tx_complete_aggr(sc, txq, bf, &bf_head, &ts, 0,
-                                            retry_tx);
-               else
-                       ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0, 0);
-+              spin_lock_bh(&txq->axq_lock);
+       bf->bf_buf_addr = dma_map_single(sc->dev, skb->data,
+@@ -1791,22 +1810,6 @@ static struct ath_buf *ath_tx_setup_buff
+               goto error;
        }
-+}
  
-+/*
-+ * Drain a given TX queue (could be Beacon or Data)
-+ *
-+ * This assumes output has been stopped and
-+ * we do not need to block ath_tx_tasklet.
-+ */
-+void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq, bool retry_tx)
-+{
-       spin_lock_bh(&txq->axq_lock);
--      txq->axq_tx_inprogress = false;
--      spin_unlock_bh(&txq->axq_lock);
--
-       if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
--              spin_lock_bh(&txq->axq_lock);
--              while (!list_empty(&txq->txq_fifo_pending)) {
--                      bf = list_first_entry(&txq->txq_fifo_pending,
--                                            struct ath_buf, list);
--                      list_cut_position(&bf_head,
--                                        &txq->txq_fifo_pending,
--                                        &bf->bf_lastbf->list);
--                      spin_unlock_bh(&txq->axq_lock);
-+              int idx = txq->txq_tailidx;
--                      if (bf_isampdu(bf))
--                              ath_tx_complete_aggr(sc, txq, bf, &bf_head,
--                                                   &ts, 0, retry_tx);
--                      else
--                              ath_tx_complete_buf(sc, bf, txq, &bf_head,
--                                                  &ts, 0, 0);
--                      spin_lock_bh(&txq->axq_lock);
-+              while (!list_empty(&txq->txq_fifo[idx])) {
-+                      ath_drain_txq_list(sc, txq, &txq->txq_fifo[idx],
-+                                         retry_tx);
-+
-+                      INCR(idx, ATH_TXFIFO_DEPTH);
-               }
--              spin_unlock_bh(&txq->axq_lock);
-+              txq->txq_tailidx = idx;
-       }
+-      frm_type = get_hw_packet_type(skb);
+-
+-      ds = bf->bf_desc;
+-      ath9k_hw_set_desc_link(ah, ds, 0);
+-
+-      ath9k_hw_set11n_txdesc(ah, ds, fi->framelen, frm_type, MAX_RATE_POWER,
+-                             fi->keyix, fi->keytype, bf->bf_flags);
+-
+-      ath9k_hw_filltxdesc(ah, ds,
+-                          skb->len,   /* segment length */
+-                          true,       /* first segment */
+-                          true,       /* last segment */
+-                          ds,         /* first descriptor */
+-                          bf->bf_buf_addr,
+-                          txq->axq_qnum);
+-
+       fi->bf = bf;
  
-+      txq->axq_link = NULL;
-+      txq->axq_tx_inprogress = false;
-+      ath_drain_txq_list(sc, txq, &txq->axq_q, retry_tx);
-+
-       /* flush any pending frames if aggregation is enabled */
--      if (sc->sc_flags & SC_OP_TXAGGR) {
--              if (!retry_tx) {
--                      spin_lock_bh(&txq->axq_lock);
--                      ath_txq_drain_pending_buffers(sc, txq);
--                      spin_unlock_bh(&txq->axq_lock);
--              }
--      }
-+      if ((sc->sc_flags & SC_OP_TXAGGR) && !retry_tx)
-+              ath_txq_drain_pending_buffers(sc, txq);
-+
-+      spin_unlock_bh(&txq->axq_lock);
- }
+       return bf;
+@@ -1849,16 +1852,9 @@ static void ath_tx_start_dma(struct ath_
  
- bool ath_drain_all_txq(struct ath_softc *sc, bool retry_tx)
-@@ -1370,11 +1327,13 @@ void ath_txq_schedule(struct ath_softc *
-  * assume the descriptors are already chained together by caller.
-  */
- static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
--                           struct list_head *head)
-+                           struct list_head *head, bool internal)
- {
-       struct ath_hw *ah = sc->sc_ah;
-       struct ath_common *common = ath9k_hw_common(ah);
--      struct ath_buf *bf;
-+      struct ath_buf *bf, *bf_last;
-+      bool puttxbuf = false;
-+      bool edma;
+               bf->bf_state.bfs_paprd = txctl->paprd;
  
-       /*
-        * Insert the frame on the outbound list and
-@@ -1384,51 +1343,49 @@ static void ath_tx_txqaddbuf(struct ath_
-       if (list_empty(head))
-               return;
+-              if (bf->bf_state.bfs_paprd)
+-                      ar9003_hw_set_paprd_txdesc(sc->sc_ah, bf->bf_desc,
+-                                                 bf->bf_state.bfs_paprd);
+-
+               if (txctl->paprd)
+                       bf->bf_state.bfs_paprd_timestamp = jiffies;
  
-+      edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
-       bf = list_first_entry(head, struct ath_buf, list);
-+      bf_last = list_entry(head->prev, struct ath_buf, list);
+-              if (tx_info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT)
+-                      ath9k_hw_set_clrdmask(sc->sc_ah, bf->bf_desc, true);
+-
+               ath_tx_send_normal(sc, txctl->txq, tid, skb);
+       }
  
-       ath_dbg(common, ATH_DBG_QUEUE,
-               "qnum: %d, txq depth: %d\n", txq->axq_qnum, txq->axq_depth);
+@@ -1899,15 +1895,18 @@ int ath_tx_start(struct ieee80211_hw *hw
+               hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no);
+       }
  
--      if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
--              if (txq->axq_depth >= ATH_TXFIFO_DEPTH) {
--                      list_splice_tail_init(head, &txq->txq_fifo_pending);
--                      return;
--              }
--              if (!list_empty(&txq->txq_fifo[txq->txq_headidx]))
--                      ath_dbg(common, ATH_DBG_XMIT,
--                              "Initializing tx fifo %d which is non-empty\n",
--                              txq->txq_headidx);
--              INIT_LIST_HEAD(&txq->txq_fifo[txq->txq_headidx]);
--              list_splice_init(head, &txq->txq_fifo[txq->txq_headidx]);
-+      if (edma && list_empty(&txq->txq_fifo[txq->txq_headidx])) {
-+              list_splice_tail_init(head, &txq->txq_fifo[txq->txq_headidx]);
-               INCR(txq->txq_headidx, ATH_TXFIFO_DEPTH);
--              TX_STAT_INC(txq->axq_qnum, puttxbuf);
--              ath9k_hw_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
--              ath_dbg(common, ATH_DBG_XMIT, "TXDP[%u] = %llx (%p)\n",
--                      txq->axq_qnum, ito64(bf->bf_daddr), bf->bf_desc);
-+              puttxbuf = true;
-       } else {
-               list_splice_tail_init(head, &txq->axq_q);
--              if (txq->axq_link == NULL) {
--                      TX_STAT_INC(txq->axq_qnum, puttxbuf);
--                      ath9k_hw_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
--                      ath_dbg(common, ATH_DBG_XMIT, "TXDP[%u] = %llx (%p)\n",
--                              txq->axq_qnum, ito64(bf->bf_daddr),
--                              bf->bf_desc);
--              } else {
--                      *txq->axq_link = bf->bf_daddr;
-+              if (txq->axq_link) {
-+                      ath9k_hw_set_desc_link(ah, txq->axq_link, bf->bf_daddr);
-                       ath_dbg(common, ATH_DBG_XMIT,
-                               "link[%u] (%p)=%llx (%p)\n",
-                               txq->axq_qnum, txq->axq_link,
-                               ito64(bf->bf_daddr), bf->bf_desc);
--              }
--              ath9k_hw_get_desc_link(ah, bf->bf_lastbf->bf_desc,
--                                     &txq->axq_link);
-+              } else if (!edma)
-+                      puttxbuf = true;
-+
-+              txq->axq_link = bf_last->bf_desc;
-+      }
-+
-+      if (puttxbuf) {
-+              TX_STAT_INC(txq->axq_qnum, puttxbuf);
-+              ath9k_hw_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
-+              ath_dbg(common, ATH_DBG_XMIT, "TXDP[%u] = %llx (%p)\n",
-+                      txq->axq_qnum, ito64(bf->bf_daddr), bf->bf_desc);
-+      }
+-      /* Add the padding after the header if this is not already done */
+-      padpos = ath9k_cmn_padpos(hdr->frame_control);
+-      padsize = padpos & 3;
+-      if (padsize && skb->len > padpos) {
+-              if (skb_headroom(skb) < padsize)
+-                      return -ENOMEM;
+-
+-              skb_push(skb, padsize);
+-              memmove(skb->data, skb->data + padsize, padpos);
++      if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)) {
++              /* Add the padding after the header if this is not already done */
++              padpos = ath9k_cmn_padpos(hdr->frame_control);
++              padsize = padpos & 3;
++              if (padsize && skb->len > padpos) {
++                      if (skb_headroom(skb) < padsize)
++                              return -ENOMEM;
 +
-+      if (!edma) {
-               TX_STAT_INC(txq->axq_qnum, txstart);
-               ath9k_hw_txstart(ah, txq->axq_qnum);
++                      skb_push(skb, padsize);
++                      memmove(skb->data, skb->data + padsize, padpos);
++                      hdr = (struct ieee80211_hdr *) skb->data;
++              }
        }
--      txq->axq_depth++;
--      if (bf_is_ampdu_not_probing(bf))
--              txq->axq_ampdu_depth++;
-+
-+      if (!internal) {
-+              txq->axq_depth++;
-+              if (bf_is_ampdu_not_probing(bf))
-+                      txq->axq_ampdu_depth++;
-+      }
- }
  
- static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid,
-@@ -1470,7 +1427,7 @@ static void ath_tx_send_ampdu(struct ath
-       TX_STAT_INC(txctl->txq->axq_qnum, a_queued_hw);
-       bf->bf_lastbf = bf;
-       ath_buf_set_rate(sc, bf, fi->framelen);
--      ath_tx_txqaddbuf(sc, txctl->txq, &bf_head);
-+      ath_tx_txqaddbuf(sc, txctl->txq, &bf_head, false);
- }
+       if ((vif && vif->type != NL80211_IFTYPE_AP &&
+@@ -1953,20 +1952,21 @@ static void ath_tx_complete(struct ath_s
+       if (tx_flags & ATH_TX_BAR)
+               tx_info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
  
- static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
-@@ -1490,7 +1447,7 @@ static void ath_tx_send_normal(struct at
-       bf->bf_lastbf = bf;
-       fi = get_frame_info(bf->bf_mpdu);
-       ath_buf_set_rate(sc, bf, fi->framelen);
--      ath_tx_txqaddbuf(sc, txq, bf_head);
-+      ath_tx_txqaddbuf(sc, txq, bf_head, false);
-       TX_STAT_INC(txq->axq_qnum, queued);
- }
+-      if (!(tx_flags & (ATH_TX_ERROR | ATH_TX_XRETRY))) {
++      if (!(tx_flags & ATH_TX_ERROR))
+               /* Frame was ACKed */
+               tx_info->flags |= IEEE80211_TX_STAT_ACK;
+-      }
  
-@@ -2077,6 +2034,38 @@ static void ath_tx_rc_status(struct ath_
-       tx_info->status.rates[tx_rateindex].count = ts->ts_longretry + 1;
- }
+-      padpos = ath9k_cmn_padpos(hdr->frame_control);
+-      padsize = padpos & 3;
+-      if (padsize && skb->len>padpos+padsize) {
+-              /*
+-               * Remove MAC header padding before giving the frame back to
+-               * mac80211.
+-               */
+-              memmove(skb->data + padsize, skb->data, padpos);
+-              skb_pull(skb, padsize);
++      if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)) {
++              padpos = ath9k_cmn_padpos(hdr->frame_control);
++              padsize = padpos & 3;
++              if (padsize && skb->len>padpos+padsize) {
++                      /*
++                       * Remove MAC header padding before giving the frame back to
++                       * mac80211.
++                       */
++                      memmove(skb->data + padsize, skb->data, padpos);
++                      skb_pull(skb, padsize);
++              }
+       }
  
-+static void ath_tx_process_buffer(struct ath_softc *sc, struct ath_txq *txq,
-+                                struct ath_tx_status *ts, struct ath_buf *bf,
-+                                struct list_head *bf_head)
-+{
-+      int txok;
-+
-+      txq->axq_depth--;
-+      txok = !(ts->ts_status & ATH9K_TXERR_MASK);
-+      txq->axq_tx_inprogress = false;
-+      if (bf_is_ampdu_not_probing(bf))
-+              txq->axq_ampdu_depth--;
-+
-+      spin_unlock_bh(&txq->axq_lock);
-+
-+      if (!bf_isampdu(bf)) {
-+              /*
-+               * This frame is sent out as a single frame.
-+               * Use hardware retry status for this frame.
-+               */
-+              if (ts->ts_status & ATH9K_TXERR_XRETRY)
-+                      bf->bf_state.bf_type |= BUF_XRETRY;
-+              ath_tx_rc_status(sc, bf, ts, 1, txok ? 0 : 1, txok, true);
-+              ath_tx_complete_buf(sc, bf, txq, bf_head, ts, txok, 0);
-+      } else
-+              ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok, true);
-+
-+      spin_lock_bh(&txq->axq_lock);
-+
-+      if (sc->sc_flags & SC_OP_TXAGGR)
-+              ath_txq_schedule(sc, txq);
-+}
-+
- static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
+       if (sc->ps_flags & PS_WAIT_FOR_TX_ACK) {
+@@ -2000,18 +2000,18 @@ static void ath_tx_complete_buf(struct a
+                               struct ath_tx_status *ts, int txok, int sendbar)
  {
-       struct ath_hw *ah = sc->sc_ah;
-@@ -2085,20 +2074,18 @@ static void ath_tx_processq(struct ath_s
-       struct list_head bf_head;
-       struct ath_desc *ds;
-       struct ath_tx_status ts;
--      int txok;
-       int status;
-       ath_dbg(common, ATH_DBG_QUEUE, "tx queue %d (%x), link %p\n",
-               txq->axq_qnum, ath9k_hw_gettxbuf(sc->sc_ah, txq->axq_qnum),
-               txq->axq_link);
-+      spin_lock_bh(&txq->axq_lock);
-       for (;;) {
--              spin_lock_bh(&txq->axq_lock);
-               if (list_empty(&txq->axq_q)) {
-                       txq->axq_link = NULL;
-                       if (sc->sc_flags & SC_OP_TXAGGR)
-                               ath_txq_schedule(sc, txq);
--                      spin_unlock_bh(&txq->axq_lock);
-                       break;
-               }
-               bf = list_first_entry(&txq->axq_q, struct ath_buf, list);
-@@ -2114,13 +2101,11 @@ static void ath_tx_processq(struct ath_s
-               bf_held = NULL;
-               if (bf->bf_stale) {
-                       bf_held = bf;
--                      if (list_is_last(&bf_held->list, &txq->axq_q)) {
--                              spin_unlock_bh(&txq->axq_lock);
-+                      if (list_is_last(&bf_held->list, &txq->axq_q))
-                               break;
--                      } else {
--                              bf = list_entry(bf_held->list.next,
--                                              struct ath_buf, list);
--                      }
-+
-+                      bf = list_entry(bf_held->list.next, struct ath_buf,
-+                                      list);
-               }
+       struct sk_buff *skb = bf->bf_mpdu;
++      struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
+       unsigned long flags;
+       int tx_flags = 0;
  
-               lastbf = bf->bf_lastbf;
-@@ -2128,10 +2113,9 @@ static void ath_tx_processq(struct ath_s
+       if (sendbar)
+               tx_flags = ATH_TX_BAR;
  
-               memset(&ts, 0, sizeof(ts));
-               status = ath9k_hw_txprocdesc(ah, ds, &ts);
--              if (status == -EINPROGRESS) {
--                      spin_unlock_bh(&txq->axq_lock);
-+              if (status == -EINPROGRESS)
-                       break;
--              }
-+
-               TX_STAT_INC(txq->axq_qnum, txprocdesc);
+-      if (!txok) {
++      if (!txok)
+               tx_flags |= ATH_TX_ERROR;
  
-               /*
-@@ -2145,42 +2129,14 @@ static void ath_tx_processq(struct ath_s
-                       list_cut_position(&bf_head,
-                               &txq->axq_q, lastbf->list.prev);
--              txq->axq_depth--;
--              txok = !(ts.ts_status & ATH9K_TXERR_MASK);
--              txq->axq_tx_inprogress = false;
--              if (bf_held)
-+              if (bf_held) {
-                       list_del(&bf_held->list);
--
--              if (bf_is_ampdu_not_probing(bf))
--                      txq->axq_ampdu_depth--;
--
--              spin_unlock_bh(&txq->axq_lock);
--
--              if (bf_held)
-                       ath_tx_return_buffer(sc, bf_held);
--
--              if (!bf_isampdu(bf)) {
--                      /*
--                       * This frame is sent out as a single frame.
--                       * Use hardware retry status for this frame.
--                       */
--                      if (ts.ts_status & ATH9K_TXERR_XRETRY)
--                              bf->bf_state.bf_type |= BUF_XRETRY;
--                      ath_tx_rc_status(sc, bf, &ts, 1, txok ? 0 : 1, txok, true);
-               }
+-              if (bf_isxretried(bf))
+-                      tx_flags |= ATH_TX_XRETRY;
+-      }
++      if (ts->ts_status & ATH9K_TXERR_FILT)
++              tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
  
--              if (bf_isampdu(bf))
--                      ath_tx_complete_aggr(sc, txq, bf, &bf_head, &ts, txok,
--                                           true);
--              else
--                      ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, txok, 0);
--
--              spin_lock_bh(&txq->axq_lock);
--
--              if (sc->sc_flags & SC_OP_TXAGGR)
--                      ath_txq_schedule(sc, txq);
--              spin_unlock_bh(&txq->axq_lock);
-+              ath_tx_process_buffer(sc, txq, &ts, bf, &bf_head);
+       dma_unmap_single(sc->dev, bf->bf_buf_addr, skb->len, DMA_TO_DEVICE);
+       bf->bf_buf_addr = 0;
+@@ -2024,7 +2024,7 @@ static void ath_tx_complete_buf(struct a
+               else
+                       complete(&sc->paprd_complete);
+       } else {
+-              ath_debug_stat_tx(sc, bf, ts, txq);
++              ath_debug_stat_tx(sc, bf, ts, txq, tx_flags);
+               ath_tx_complete(sc, skb, tx_flags, txq);
        }
-+      spin_unlock_bh(&txq->axq_lock);
- }
- static void ath_tx_complete_poll_work(struct work_struct *work)
-@@ -2237,17 +2193,16 @@ void ath_tx_tasklet(struct ath_softc *sc
+       /* At this point, skb (bf->bf_mpdu) is consumed...make sure we don't
+@@ -2042,7 +2042,7 @@ static void ath_tx_complete_buf(struct a
  
- void ath_tx_edma_tasklet(struct ath_softc *sc)
+ static void ath_tx_rc_status(struct ath_softc *sc, struct ath_buf *bf,
+                            struct ath_tx_status *ts, int nframes, int nbad,
+-                           int txok, bool update_rc)
++                           int txok)
  {
--      struct ath_tx_status txs;
-+      struct ath_tx_status ts;
-       struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-       struct ath_hw *ah = sc->sc_ah;
-       struct ath_txq *txq;
-       struct ath_buf *bf, *lastbf;
-       struct list_head bf_head;
-       int status;
--      int txok;
-       for (;;) {
--              status = ath9k_hw_txprocdesc(ah, NULL, (void *)&txs);
-+              status = ath9k_hw_txprocdesc(ah, NULL, (void *)&ts);
-               if (status == -EINPROGRESS)
-                       break;
-               if (status == -EIO) {
-@@ -2257,12 +2212,13 @@ void ath_tx_edma_tasklet(struct ath_soft
-               }
-               /* Skip beacon completions */
--              if (txs.qid == sc->beacon.beaconq)
-+              if (ts.qid == sc->beacon.beaconq)
-                       continue;
+       struct sk_buff *skb = bf->bf_mpdu;
+       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+@@ -2057,9 +2057,7 @@ static void ath_tx_rc_status(struct ath_
+       tx_rateindex = ts->ts_rateindex;
+       WARN_ON(tx_rateindex >= hw->max_rates);
+-      if (ts->ts_status & ATH9K_TXERR_FILT)
+-              tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
+-      if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && update_rc) {
++      if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
+               tx_info->flags |= IEEE80211_TX_STAT_AMPDU;
+               BUG_ON(nbad > nframes);
+@@ -2069,7 +2067,7 @@ static void ath_tx_rc_status(struct ath_
+       }
  
--              txq = &sc->tx.txq[txs.qid];
-+              txq = &sc->tx.txq[ts.qid];
-               spin_lock_bh(&txq->axq_lock);
-+
-               if (list_empty(&txq->txq_fifo[txq->txq_tailidx])) {
-                       spin_unlock_bh(&txq->axq_lock);
-                       return;
-@@ -2275,41 +2231,21 @@ void ath_tx_edma_tasklet(struct ath_soft
-               INIT_LIST_HEAD(&bf_head);
-               list_cut_position(&bf_head, &txq->txq_fifo[txq->txq_tailidx],
-                                 &lastbf->list);
--              INCR(txq->txq_tailidx, ATH_TXFIFO_DEPTH);
--              txq->axq_depth--;
--              txq->axq_tx_inprogress = false;
--              if (bf_is_ampdu_not_probing(bf))
--                      txq->axq_ampdu_depth--;
--              spin_unlock_bh(&txq->axq_lock);
--              txok = !(txs.ts_status & ATH9K_TXERR_MASK);
--
--              if (!bf_isampdu(bf)) {
--                      if (txs.ts_status & ATH9K_TXERR_XRETRY)
--                              bf->bf_state.bf_type |= BUF_XRETRY;
--                      ath_tx_rc_status(sc, bf, &txs, 1, txok ? 0 : 1, txok, true);
--              }
--
--              if (bf_isampdu(bf))
--                      ath_tx_complete_aggr(sc, txq, bf, &bf_head, &txs,
--                                           txok, true);
--              else
--                      ath_tx_complete_buf(sc, bf, txq, &bf_head,
--                                          &txs, txok, 0);
-+              if (list_empty(&txq->txq_fifo[txq->txq_tailidx])) {
-+                      INCR(txq->txq_tailidx, ATH_TXFIFO_DEPTH);
--              spin_lock_bh(&txq->axq_lock);
-+                      if (!list_empty(&txq->axq_q)) {
-+                              struct list_head bf_q;
--              if (!list_empty(&txq->txq_fifo_pending)) {
--                      INIT_LIST_HEAD(&bf_head);
--                      bf = list_first_entry(&txq->txq_fifo_pending,
--                                            struct ath_buf, list);
--                      list_cut_position(&bf_head,
--                                        &txq->txq_fifo_pending,
--                                        &bf->bf_lastbf->list);
--                      ath_tx_txqaddbuf(sc, txq, &bf_head);
--              } else if (sc->sc_flags & SC_OP_TXAGGR)
--                      ath_txq_schedule(sc, txq);
-+                              INIT_LIST_HEAD(&bf_q);
-+                              txq->axq_link = NULL;
-+                              list_splice_tail_init(&txq->axq_q, &bf_q);
-+                              ath_tx_txqaddbuf(sc, txq, &bf_q, true);
-+                      }
-+              }
+       if ((ts->ts_status & ATH9K_TXERR_FILT) == 0 &&
+-          (bf->bf_flags & ATH9K_TXDESC_NOACK) == 0 && update_rc) {
++          (tx_info->flags & IEEE80211_TX_CTL_NO_ACK) == 0) {
+               /*
+                * If an underrun error is seen assume it as an excessive
+                * retry only if max frame trigger level has been reached
+@@ -2082,9 +2080,9 @@ static void ath_tx_rc_status(struct ath_
+                * successfully by eventually preferring slower rates.
+                * This itself should also alleviate congestion on the bus.
+                */
+-              if (ieee80211_is_data(hdr->frame_control) &&
+-                  (ts->ts_flags & (ATH9K_TX_DATA_UNDERRUN |
+-                                   ATH9K_TX_DELIM_UNDERRUN)) &&
++              if (unlikely(ts->ts_flags & (ATH9K_TX_DATA_UNDERRUN |
++                                           ATH9K_TX_DELIM_UNDERRUN)) &&
++                  ieee80211_is_data(hdr->frame_control) &&
+                   ah->tx_trig_level >= sc->sc_ah->config.max_txtrig_level)
+                       tx_info->status.rates[tx_rateindex].count =
+                               hw->max_rate_tries;
+@@ -2115,13 +2113,7 @@ static void ath_tx_process_buffer(struct
+       spin_unlock_bh(&txq->axq_lock);
  
-+              ath_tx_process_buffer(sc, txq, &ts, bf, &bf_head);
-               spin_unlock_bh(&txq->axq_lock);
-       }
- }
+       if (!bf_isampdu(bf)) {
+-              /*
+-               * This frame is sent out as a single frame.
+-               * Use hardware retry status for this frame.
+-               */
+-              if (ts->ts_status & ATH9K_TXERR_XRETRY)
+-                      bf->bf_state.bf_type |= BUF_XRETRY;
+-              ath_tx_rc_status(sc, bf, ts, 1, txok ? 0 : 1, txok, true);
++              ath_tx_rc_status(sc, bf, ts, 1, txok ? 0 : 1, txok);
+               ath_tx_complete_buf(sc, bf, txq, bf_head, ts, txok, 0);
+       } else
+               ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok, true);
 --- a/net/mac80211/agg-rx.c
 +++ b/net/mac80211/agg-rx.c
-@@ -161,6 +161,8 @@ static void ieee80211_send_addba_resp(st
+@@ -180,6 +180,8 @@ static void ieee80211_send_addba_resp(st
                memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
        else if (sdata->vif.type == NL80211_IFTYPE_STATION)
                memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
                                          IEEE80211_STYPE_ACTION);
 --- a/net/mac80211/agg-tx.c
 +++ b/net/mac80211/agg-tx.c
-@@ -79,7 +79,8 @@ static void ieee80211_send_addba_request
+@@ -77,7 +77,8 @@ static void ieee80211_send_addba_request
        memcpy(mgmt->da, da, ETH_ALEN);
        memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
        if (sdata->vif.type == NL80211_IFTYPE_AP ||
                memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
        else if (sdata->vif.type == NL80211_IFTYPE_STATION)
                memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
-@@ -388,7 +389,8 @@ int ieee80211_start_tx_ba_session(struct
+@@ -397,7 +398,8 @@ int ieee80211_start_tx_ba_session(struct
         */
        if (sdata->vif.type != NL80211_IFTYPE_STATION &&
            sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
                        break;
 --- a/net/mac80211/rx.c
 +++ b/net/mac80211/rx.c
-@@ -2137,7 +2137,8 @@ ieee80211_rx_h_action(struct ieee80211_r
+@@ -2163,7 +2163,8 @@ ieee80211_rx_h_action(struct ieee80211_r
                 */
                if (sdata->vif.type != NL80211_IFTYPE_STATION &&
                    sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
                        break;
  
                /* verify action_code is present */
-@@ -2335,13 +2336,14 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
+@@ -2378,13 +2379,14 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
  
        if (!ieee80211_vif_is_mesh(&sdata->vif) &&
            sdata->vif.type != NL80211_IFTYPE_ADHOC &&
                break;
        case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
        case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
-@@ -2680,10 +2682,16 @@ static int prepare_for_handlers(struct i
+@@ -2727,10 +2729,16 @@ static int prepare_for_handlers(struct i
                }
                break;
        case NL80211_IFTYPE_WDS:
        WLAN_STA_CLEAR_PS_FILT  = 1<<9,
        WLAN_STA_MFP            = 1<<10,
        WLAN_STA_BLOCK_BA       = 1<<11,
---- a/drivers/net/wireless/ath/ath9k/debug.h
-+++ b/drivers/net/wireless/ath/ath9k/debug.h
-@@ -116,6 +116,7 @@ struct ath_tx_stats {
-       u32 tx_bytes_all;
-       u32 queued;
-       u32 completed;
-+      u32 xretries;
-       u32 a_aggr;
-       u32 a_queued_hw;
-       u32 a_queued_sw;
---- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
-@@ -4645,10 +4645,16 @@ static void ar9003_hw_set_power_per_rate
-       case 1:
-               break;
-       case 2:
--              scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
-+              if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN)
-+                      scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
-+              else
-+                      scaledPower = 0;
-               break;
-       case 3:
--              scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
-+              if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN)
-+                      scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
-+              else
-+                      scaledPower = 0;
-               break;
+--- a/net/mac80211/status.c
++++ b/net/mac80211/status.c
+@@ -278,17 +278,19 @@ void ieee80211_tx_status(struct ieee8021
+               }
+               if (!acked && ieee80211_is_back_req(fc)) {
++                      u16 control;
++
+                       /*
+-                       * BAR failed, let's tear down the BA session as a
+-                       * last resort as some STAs (Intel 5100 on Windows)
+-                       * can get stuck when the BA window isn't flushed
+-                       * correctly.
++                       * BAR failed, store the last SSN and retry sending
++                       * the BAR when the next unicast transmission on the
++                       * same TID succeeds.
+                        */
+                       bar = (struct ieee80211_bar *) skb->data;
+-                      if (!(bar->control & IEEE80211_BAR_CTRL_MULTI_TID)) {
++                      control = le16_to_cpu(bar->control);
++                      if (!(control & IEEE80211_BAR_CTRL_MULTI_TID)) {
+                               u16 ssn = le16_to_cpu(bar->start_seq_num);
+-                              tid = (bar->control &
++                              tid = (control &
+                                      IEEE80211_BAR_CTRL_TID_INFO_MASK) >>
+                                     IEEE80211_BAR_CTRL_TID_INFO_SHIFT;
+--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
++++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+@@ -704,8 +704,10 @@ static void ar5008_hw_override_ini(struc
+               REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
+       }
+-      if (!AR_SREV_5416_20_OR_LATER(ah) ||
+-          AR_SREV_9280_20_OR_LATER(ah))
++      REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
++                  AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV);
++
++      if (AR_SREV_9280_20_OR_LATER(ah))
+               return;
+       /*
+        * Disable BB clock gating
+@@ -802,7 +804,8 @@ static int ar5008_hw_process_ini(struct 
+       /* Write ADDAC shifts */
+       REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_EXTERNAL_RADIO);
+-      ah->eep_ops->set_addac(ah, chan);
++      if (ah->eep_ops->set_addac)
++              ah->eep_ops->set_addac(ah, chan);
+       if (AR_SREV_5416_22_OR_LATER(ah)) {
+               REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
+@@ -1007,24 +1010,6 @@ static void ar5008_restore_chainmask(str
+       }
+ }
+-static void ar5008_set_diversity(struct ath_hw *ah, bool value)
+-{
+-      u32 v = REG_READ(ah, AR_PHY_CCK_DETECT);
+-      if (value)
+-              v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
+-      else
+-              v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
+-      REG_WRITE(ah, AR_PHY_CCK_DETECT, v);
+-}
+-
+-static u32 ar9100_hw_compute_pll_control(struct ath_hw *ah,
+-                                       struct ath9k_channel *chan)
+-{
+-      if (chan && IS_CHAN_5GHZ(chan))
+-              return 0x1450;
+-      return 0x1458;
+-}
+-
+ static u32 ar9160_hw_compute_pll_control(struct ath_hw *ah,
+                                        struct ath9k_channel *chan)
+ {
+@@ -1654,7 +1639,6 @@ void ar5008_hw_attach_phy_ops(struct ath
+       priv_ops->rfbus_req = ar5008_hw_rfbus_req;
+       priv_ops->rfbus_done = ar5008_hw_rfbus_done;
+       priv_ops->restore_chainmask = ar5008_restore_chainmask;
+-      priv_ops->set_diversity = ar5008_set_diversity;
+       priv_ops->do_getnf = ar5008_hw_do_getnf;
+       priv_ops->set_radar_params = ar5008_hw_set_radar_params;
+@@ -1664,9 +1648,7 @@ void ar5008_hw_attach_phy_ops(struct ath
+       } else
+               priv_ops->ani_control = ar5008_hw_ani_control_old;
+-      if (AR_SREV_9100(ah))
+-              priv_ops->compute_pll_control = ar9100_hw_compute_pll_control;
+-      else if (AR_SREV_9160_10_OR_LATER(ah))
++      if (AR_SREV_9100(ah) || AR_SREV_9160_10_OR_LATER(ah))
+               priv_ops->compute_pll_control = ar9160_hw_compute_pll_control;
+       else
+               priv_ops->compute_pll_control = ar5008_hw_compute_pll_control;
+--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+@@ -592,6 +592,9 @@ static void ar9003_hw_override_ini(struc
+       val = REG_READ(ah, AR_PCU_MISC_MODE2) & (~AR_ADHOC_MCAST_KEYID_ENABLE);
+       REG_WRITE(ah, AR_PCU_MISC_MODE2,
+                 val | AR_AGG_WEP_ENABLE_FIX | AR_AGG_WEP_ENABLE);
++
++      REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
++                  AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV);
+ }
+ static void ar9003_hw_prog_ini(struct ath_hw *ah,
+@@ -785,16 +788,6 @@ static void ar9003_hw_rfbus_done(struct 
+       REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
+ }
+-static void ar9003_hw_set_diversity(struct ath_hw *ah, bool value)
+-{
+-      u32 v = REG_READ(ah, AR_PHY_CCK_DETECT);
+-      if (value)
+-              v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
+-      else
+-              v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
+-      REG_WRITE(ah, AR_PHY_CCK_DETECT, v);
+-}
+-
+ static bool ar9003_hw_ani_control(struct ath_hw *ah,
+                                 enum ath9k_ani_cmd cmd, int param)
+ {
+@@ -1277,7 +1270,6 @@ void ar9003_hw_attach_phy_ops(struct ath
+       priv_ops->set_delta_slope = ar9003_hw_set_delta_slope;
+       priv_ops->rfbus_req = ar9003_hw_rfbus_req;
+       priv_ops->rfbus_done = ar9003_hw_rfbus_done;
+-      priv_ops->set_diversity = ar9003_hw_set_diversity;
+       priv_ops->ani_control = ar9003_hw_ani_control;
+       priv_ops->do_getnf = ar9003_hw_do_getnf;
+       priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs;
+--- a/drivers/net/wireless/ath/ath9k/eeprom.c
++++ b/drivers/net/wireless/ath/ath9k/eeprom.c
+@@ -456,12 +456,7 @@ void ath9k_hw_get_gain_boundaries_pdadcs
+               pPdGainBoundaries[i] =
+                       min((u16)MAX_RATE_POWER, pPdGainBoundaries[i]);
+-              if ((i == 0) && !AR_SREV_5416_20_OR_LATER(ah)) {
+-                      minDelta = pPdGainBoundaries[0] - 23;
+-                      pPdGainBoundaries[0] = 23;
+-              } else {
+-                      minDelta = 0;
+-              }
++              minDelta = 0;
+               if (i == 0) {
+                       if (AR_SREV_9280_20_OR_LATER(ah))
+--- a/drivers/net/wireless/ath/ath9k/eeprom_4k.c
++++ b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
+@@ -405,12 +405,7 @@ static void ath9k_hw_set_4k_power_cal_ta
+       REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_PD_GAIN_3, 0);
+       for (i = 0; i < AR5416_EEP4K_MAX_CHAINS; i++) {
+-              if (AR_SREV_5416_20_OR_LATER(ah) &&
+-                  (ah->rxchainmask == 5 || ah->txchainmask == 5) &&
+-                  (i != 0)) {
+-                      regChainOffset = (i == 1) ? 0x2000 : 0x1000;
+-              } else
+-                      regChainOffset = i * 0x1000;
++              regChainOffset = i * 0x1000;
+               if (pEepData->baseEepHeader.txMask & (1 << i)) {
+                       pRawDataset = pEepData->calPierData2G[i];
+@@ -423,19 +418,17 @@ static void ath9k_hw_set_4k_power_cal_ta
+                       ENABLE_REGWRITE_BUFFER(ah);
+-                      if ((i == 0) || AR_SREV_5416_20_OR_LATER(ah)) {
+-                              REG_WRITE(ah, AR_PHY_TPCRG5 + regChainOffset,
+-                                        SM(pdGainOverlap_t2,
+-                                           AR_PHY_TPCRG5_PD_GAIN_OVERLAP)
+-                                        | SM(gainBoundaries[0],
+-                                             AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1)
+-                                        | SM(gainBoundaries[1],
+-                                             AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2)
+-                                        | SM(gainBoundaries[2],
+-                                             AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3)
+-                                        | SM(gainBoundaries[3],
+-                                     AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
+-                      }
++                      REG_WRITE(ah, AR_PHY_TPCRG5 + regChainOffset,
++                                SM(pdGainOverlap_t2,
++                                   AR_PHY_TPCRG5_PD_GAIN_OVERLAP)
++                                | SM(gainBoundaries[0],
++                                     AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1)
++                                | SM(gainBoundaries[1],
++                                     AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2)
++                                | SM(gainBoundaries[2],
++                                     AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3)
++                                | SM(gainBoundaries[3],
++                             AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
+                       regOffset = AR_PHY_BASE + (672 << 2) + regChainOffset;
+                       for (j = 0; j < 32; j++) {
+@@ -715,10 +708,8 @@ static void ath9k_hw_4k_set_txpower(stru
+       if (test)
+           return;
+-      if (AR_SREV_9280_20_OR_LATER(ah)) {
+-              for (i = 0; i < Ar5416RateSize; i++)
+-                      ratesArray[i] -= AR5416_PWR_TABLE_OFFSET_DB * 2;
+-      }
++      for (i = 0; i < Ar5416RateSize; i++)
++              ratesArray[i] -= AR5416_PWR_TABLE_OFFSET_DB * 2;
+       ENABLE_REGWRITE_BUFFER(ah);
+@@ -788,28 +779,6 @@ static void ath9k_hw_4k_set_txpower(stru
+       REGWRITE_BUFFER_FLUSH(ah);
+ }
+-static void ath9k_hw_4k_set_addac(struct ath_hw *ah,
+-                                struct ath9k_channel *chan)
+-{
+-      struct modal_eep_4k_header *pModal;
+-      struct ar5416_eeprom_4k *eep = &ah->eeprom.map4k;
+-      u8 biaslevel;
+-
+-      if (ah->hw_version.macVersion != AR_SREV_VERSION_9160)
+-              return;
+-
+-      if (ah->eep_ops->get_eeprom_rev(ah) < AR5416_EEP_MINOR_VER_7)
+-              return;
+-
+-      pModal = &eep->modalHeader;
+-
+-      if (pModal->xpaBiasLvl != 0xff) {
+-              biaslevel = pModal->xpaBiasLvl;
+-              INI_RA(&ah->iniAddac, 7, 1) =
+-                (INI_RA(&ah->iniAddac, 7, 1) & (~0x18)) | biaslevel << 3;
+-      }
+-}
+-
+ static void ath9k_hw_4k_set_gain(struct ath_hw *ah,
+                                struct modal_eep_4k_header *pModal,
+                                struct ar5416_eeprom_4k *eep,
+@@ -877,6 +846,7 @@ static void ath9k_hw_4k_set_board_values
+       u8 txRxAttenLocal;
+       u8 ob[5], db1[5], db2[5];
+       u8 ant_div_control1, ant_div_control2;
++      u8 bb_desired_scale;
+       u32 regVal;
+       pModal = &eep->modalHeader;
+@@ -1096,30 +1066,29 @@ static void ath9k_hw_4k_set_board_values
+                                     AR_PHY_SETTLING_SWITCH,
+                                     pModal->swSettleHt40);
+       }
+-      if (AR_SREV_9271(ah) || AR_SREV_9285(ah)) {
+-              u8 bb_desired_scale = (pModal->bb_scale_smrt_antenna &
+-                              EEP_4K_BB_DESIRED_SCALE_MASK);
+-              if ((pBase->txGainType == 0) && (bb_desired_scale != 0)) {
+-                      u32 pwrctrl, mask, clr;
+-
+-                      mask = BIT(0)|BIT(5)|BIT(10)|BIT(15)|BIT(20)|BIT(25);
+-                      pwrctrl = mask * bb_desired_scale;
+-                      clr = mask * 0x1f;
+-                      REG_RMW(ah, AR_PHY_TX_PWRCTRL8, pwrctrl, clr);
+-                      REG_RMW(ah, AR_PHY_TX_PWRCTRL10, pwrctrl, clr);
+-                      REG_RMW(ah, AR_PHY_CH0_TX_PWRCTRL12, pwrctrl, clr);
+-
+-                      mask = BIT(0)|BIT(5)|BIT(15);
+-                      pwrctrl = mask * bb_desired_scale;
+-                      clr = mask * 0x1f;
+-                      REG_RMW(ah, AR_PHY_TX_PWRCTRL9, pwrctrl, clr);
+-
+-                      mask = BIT(0)|BIT(5);
+-                      pwrctrl = mask * bb_desired_scale;
+-                      clr = mask * 0x1f;
+-                      REG_RMW(ah, AR_PHY_CH0_TX_PWRCTRL11, pwrctrl, clr);
+-                      REG_RMW(ah, AR_PHY_CH0_TX_PWRCTRL13, pwrctrl, clr);
+-              }
++
++      bb_desired_scale = (pModal->bb_scale_smrt_antenna &
++                      EEP_4K_BB_DESIRED_SCALE_MASK);
++      if ((pBase->txGainType == 0) && (bb_desired_scale != 0)) {
++              u32 pwrctrl, mask, clr;
++
++              mask = BIT(0)|BIT(5)|BIT(10)|BIT(15)|BIT(20)|BIT(25);
++              pwrctrl = mask * bb_desired_scale;
++              clr = mask * 0x1f;
++              REG_RMW(ah, AR_PHY_TX_PWRCTRL8, pwrctrl, clr);
++              REG_RMW(ah, AR_PHY_TX_PWRCTRL10, pwrctrl, clr);
++              REG_RMW(ah, AR_PHY_CH0_TX_PWRCTRL12, pwrctrl, clr);
++
++              mask = BIT(0)|BIT(5)|BIT(15);
++              pwrctrl = mask * bb_desired_scale;
++              clr = mask * 0x1f;
++              REG_RMW(ah, AR_PHY_TX_PWRCTRL9, pwrctrl, clr);
++
++              mask = BIT(0)|BIT(5);
++              pwrctrl = mask * bb_desired_scale;
++              clr = mask * 0x1f;
++              REG_RMW(ah, AR_PHY_CH0_TX_PWRCTRL11, pwrctrl, clr);
++              REG_RMW(ah, AR_PHY_CH0_TX_PWRCTRL13, pwrctrl, clr);
        }
+ }
  
+@@ -1161,7 +1130,6 @@ const struct eeprom_ops eep_4k_ops = {
+       .get_eeprom_ver         = ath9k_hw_4k_get_eeprom_ver,
+       .get_eeprom_rev         = ath9k_hw_4k_get_eeprom_rev,
+       .set_board_values       = ath9k_hw_4k_set_board_values,
+-      .set_addac              = ath9k_hw_4k_set_addac,
+       .set_txpower            = ath9k_hw_4k_set_txpower,
+       .get_spur_channel       = ath9k_hw_4k_get_spur_channel
+ };
 --- a/drivers/net/wireless/ath/ath9k/eeprom_9287.c
 +++ b/drivers/net/wireless/ath/ath9k/eeprom_9287.c
-@@ -524,10 +524,16 @@ static void ath9k_hw_set_ar9287_power_pe
-       case 1:
-               break;
-       case 2:
--              scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
-+              if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN)
-+                      scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
-+              else
-+                      scaledPower = 0;
-               break;
-       case 3:
--              scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
-+              if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN)
-+                      scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
-+              else
-+                      scaledPower = 0;
-               break;
+@@ -851,10 +851,8 @@ static void ath9k_hw_ar9287_set_txpower(
+       if (test)
+               return;
+-      if (AR_SREV_9280_20_OR_LATER(ah)) {
+-              for (i = 0; i < Ar5416RateSize; i++)
+-                      ratesArray[i] -= AR9287_PWR_TABLE_OFFSET_DB * 2;
+-      }
++      for (i = 0; i < Ar5416RateSize; i++)
++              ratesArray[i] -= AR9287_PWR_TABLE_OFFSET_DB * 2;
+       ENABLE_REGWRITE_BUFFER(ah);
+@@ -944,11 +942,6 @@ static void ath9k_hw_ar9287_set_txpower(
+       REGWRITE_BUFFER_FLUSH(ah);
+ }
+-static void ath9k_hw_ar9287_set_addac(struct ath_hw *ah,
+-                                    struct ath9k_channel *chan)
+-{
+-}
+-
+ static void ath9k_hw_ar9287_set_board_values(struct ath_hw *ah,
+                                            struct ath9k_channel *chan)
+ {
+@@ -1100,7 +1093,6 @@ const struct eeprom_ops eep_ar9287_ops =
+       .get_eeprom_ver         = ath9k_hw_ar9287_get_eeprom_ver,
+       .get_eeprom_rev         = ath9k_hw_ar9287_get_eeprom_rev,
+       .set_board_values       = ath9k_hw_ar9287_set_board_values,
+-      .set_addac              = ath9k_hw_ar9287_set_addac,
+       .set_txpower            = ath9k_hw_ar9287_set_txpower,
+       .get_spur_channel       = ath9k_hw_ar9287_get_spur_channel
+ };
+--- a/drivers/net/wireless/ath/ath9k/eeprom_def.c
++++ b/drivers/net/wireless/ath/ath9k/eeprom_def.c
+@@ -547,8 +547,7 @@ static void ath9k_hw_def_set_board_value
+                               break;
+               }
+-              if (AR_SREV_5416_20_OR_LATER(ah) &&
+-                  (ah->rxchainmask == 5 || ah->txchainmask == 5) && (i != 0))
++              if ((ah->rxchainmask == 5 || ah->txchainmask == 5) && (i != 0))
+                       regChainOffset = (i == 1) ? 0x2000 : 0x1000;
+               else
+                       regChainOffset = i * 0x1000;
+@@ -565,9 +564,8 @@ static void ath9k_hw_def_set_board_value
+                         SM(pModal->iqCalQCh[i],
+                            AR_PHY_TIMING_CTRL4_IQCORR_Q_Q_COFF));
+-              if ((i == 0) || AR_SREV_5416_20_OR_LATER(ah))
+-                      ath9k_hw_def_set_gain(ah, pModal, eep, txRxAttenLocal,
+-                                            regChainOffset, i);
++              ath9k_hw_def_set_gain(ah, pModal, eep, txRxAttenLocal,
++                                    regChainOffset, i);
        }
-       scaledPower = max((u16)0, scaledPower);
+       if (AR_SREV_9280_20_OR_LATER(ah)) {
+@@ -893,8 +891,7 @@ static void ath9k_hw_set_def_power_cal_t
+                     xpdGainValues[2]);
+       for (i = 0; i < AR5416_MAX_CHAINS; i++) {
+-              if (AR_SREV_5416_20_OR_LATER(ah) &&
+-                  (ah->rxchainmask == 5 || ah->txchainmask == 5) &&
++              if ((ah->rxchainmask == 5 || ah->txchainmask == 5) &&
+                   (i != 0)) {
+                       regChainOffset = (i == 1) ? 0x2000 : 0x1000;
+               } else
+@@ -935,27 +932,24 @@ static void ath9k_hw_set_def_power_cal_t
+                       ENABLE_REGWRITE_BUFFER(ah);
+-                      if ((i == 0) || AR_SREV_5416_20_OR_LATER(ah)) {
+-                              if (OLC_FOR_AR9280_20_LATER) {
+-                                      REG_WRITE(ah,
+-                                              AR_PHY_TPCRG5 + regChainOffset,
+-                                              SM(0x6,
+-                                              AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
+-                                              SM_PD_GAIN(1) | SM_PD_GAIN(2) |
+-                                              SM_PD_GAIN(3) | SM_PD_GAIN(4));
+-                              } else {
+-                                      REG_WRITE(ah,
+-                                              AR_PHY_TPCRG5 + regChainOffset,
+-                                              SM(pdGainOverlap_t2,
+-                                              AR_PHY_TPCRG5_PD_GAIN_OVERLAP)|
+-                                              SM_PDGAIN_B(0, 1) |
+-                                              SM_PDGAIN_B(1, 2) |
+-                                              SM_PDGAIN_B(2, 3) |
+-                                              SM_PDGAIN_B(3, 4));
+-                              }
++                      if (OLC_FOR_AR9280_20_LATER) {
++                              REG_WRITE(ah,
++                                      AR_PHY_TPCRG5 + regChainOffset,
++                                      SM(0x6,
++                                      AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
++                                      SM_PD_GAIN(1) | SM_PD_GAIN(2) |
++                                      SM_PD_GAIN(3) | SM_PD_GAIN(4));
++                      } else {
++                              REG_WRITE(ah,
++                                      AR_PHY_TPCRG5 + regChainOffset,
++                                      SM(pdGainOverlap_t2,
++                                      AR_PHY_TPCRG5_PD_GAIN_OVERLAP)|
++                                      SM_PDGAIN_B(0, 1) |
++                                      SM_PDGAIN_B(1, 2) |
++                                      SM_PDGAIN_B(2, 3) |
++                                      SM_PDGAIN_B(3, 4));
+                       }
+-
+                       ath9k_adjust_pdadc_values(ah, pwr_table_offset,
+                                                 diff, pdadcValues);
+--- a/drivers/net/wireless/ath/ath9k/init.c
++++ b/drivers/net/wireless/ath/ath9k/init.c
+@@ -506,7 +506,6 @@ static void ath9k_init_misc(struct ath_s
+               sc->sc_flags |= SC_OP_RXAGGR;
+       }
+-      ath9k_hw_set_diversity(sc->sc_ah, true);
+       sc->rx.defant = ath9k_hw_getdefantenna(sc->sc_ah);
+       memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
+--- a/drivers/net/wireless/ath/ath9k/reg.h
++++ b/drivers/net/wireless/ath/ath9k/reg.h
+@@ -800,10 +800,6 @@
+ #define AR_SREV_5416(_ah) \
+       (((_ah)->hw_version.macVersion == AR_SREV_VERSION_5416_PCI) || \
+        ((_ah)->hw_version.macVersion == AR_SREV_VERSION_5416_PCIE))
+-#define AR_SREV_5416_20_OR_LATER(_ah) \
+-      (((AR_SREV_5416(_ah)) && \
+-       ((_ah)->hw_version.macRev >= AR_SREV_REVISION_5416_20)) || \
+-       ((_ah)->hw_version.macVersion >= AR_SREV_VERSION_9100))
+ #define AR_SREV_5416_22_OR_LATER(_ah) \
+       (((AR_SREV_5416(_ah)) && \
+        ((_ah)->hw_version.macRev >= AR_SREV_REVISION_5416_22)) || \
+--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+@@ -869,6 +869,7 @@ static bool ar9002_hw_init_cal(struct at
+       ar9002_hw_pa_cal(ah, true);
+       /* Do NF Calibration after DC offset and other calibrations */
++      ath9k_hw_loadnf(ah, chan);
+       ath9k_hw_start_nfcal(ah, true);
+       if (ah->caldata)
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -671,7 +671,6 @@ enum queue_stop_reason {
+       IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
+       IEEE80211_QUEUE_STOP_REASON_SUSPEND,
+       IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
+-      IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE,
+ };
+ #ifdef CONFIG_MAC80211_LEDS
+--- a/net/mac80211/mlme.c
++++ b/net/mac80211/mlme.c
+@@ -1921,24 +1921,8 @@ static void ieee80211_rx_mgmt_beacon(str
+               rcu_read_unlock();
+-              /*
+-               * Whenever the AP announces the HT mode change that can be
+-               * 40MHz intolerant or etc., it would be safer to stop tx
+-               * queues before doing hw config to avoid buffer overflow.
+-               */
+-              ieee80211_stop_queues_by_reason(&sdata->local->hw,
+-                              IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE);
+-
+-              /* flush out all packets */
+-              synchronize_net();
+-
+-              drv_flush(local, false);
+-
+               changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
+                                              bssid, ap_ht_cap_flags);
+-
+-              ieee80211_wake_queues_by_reason(&sdata->local->hw,
+-                              IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE);
+       }
+       /* Note: country IE parsing is done for us by cfg80211 */
+--- a/drivers/net/wireless/b43/main.c
++++ b/drivers/net/wireless/b43/main.c
+@@ -1613,7 +1613,8 @@ static void handle_irq_beacon(struct b43
+       u32 cmd, beacon0_valid, beacon1_valid;
+       if (!b43_is_mode(wl, NL80211_IFTYPE_AP) &&
+-          !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT))
++          !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) &&
++          !b43_is_mode(wl, NL80211_IFTYPE_ADHOC))
+               return;
+       /* This is the bottom half of the asynchronous beacon update. */
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