ath9k: do not strip MMIC for key miss frames
[openwrt.git] / package / mac80211 / patches / 300-pending_work.patch
index cc2b1c2..7a8e1b1 100644 (file)
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -324,7 +324,6 @@ static void ath_paprd_activate(struct at
-       if (!caldata || !caldata->paprd_done)
-               return;
+--- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
++++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
+@@ -170,33 +170,104 @@ static bool ar9002_hw_get_isr(struct ath
+       return true;
+ }
  
--      ath9k_ps_wakeup(sc);
-       ar9003_paprd_enable(ah, false);
-       for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
-               if (!(common->tx_chainmask & BIT(chain)))
-@@ -334,7 +333,6 @@ static void ath_paprd_activate(struct at
-       }
+-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;
  
-       ar9003_paprd_enable(ah, true);
--      ath9k_ps_restore(sc);
+-      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 bool ath_paprd_send_frame(struct ath_softc *sc, struct sk_buff *skb, int chain)
-@@ -554,8 +552,11 @@ set_timer:
-       if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_PAPRD) && ah->caldata) {
-               if (!ah->caldata->paprd_done)
-                       ieee80211_queue_work(sc->hw, &sc->paprd_work);
--              else if (!ah->paprd_table_write_done)
-+              else if (!ah->paprd_table_write_done) {
-+                      ath9k_ps_wakeup(sc);
-                       ath_paprd_activate(sc);
-+                      ath9k_ps_restore(sc);
-+              }
+ 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_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 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 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)
+ {
+@@ -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_isr = ar9002_hw_get_isr;
+-      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;
  }
  
-@@ -1376,7 +1377,6 @@ static void ath9k_calculate_summary_stat
+ 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_calculate_iter_data(hw, vif, &iter_data);
++      ath9k_hw_loadnf(ah, chan);
+       ath9k_hw_start_nfcal(ah, true);
  
--      ath9k_ps_wakeup(sc);
-       /* Set BSSID mask. */
-       memcpy(common->bssidmask, iter_data.mask, ETH_ALEN);
-       ath_hw_setbssidmask(common);
-@@ -1411,7 +1411,6 @@ static void ath9k_calculate_summary_stat
      }
+       /* Initialize list pointers */
+--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+@@ -21,6 +21,132 @@ static void ar9003_hw_rx_enable(struct a
+       REG_WRITE(hw, AR_CR, 0);
+ }
  
-       ath9k_hw_set_interrupts(ah, ah->imask);
--      ath9k_ps_restore(sc);
++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;
+ }
  
-       /* Set up ANI */
-       if ((iter_data.naps + iter_data.nadhocs) > 0) {
-@@ -1457,6 +1456,7 @@ static int ath9k_add_interface(struct ie
-       struct ath_vif *avp = (void *)vif->drv_priv;
-       int ret = 0;
+-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 = (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;
+-
+-      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 int ar9003_hw_proc_txdesc(struct ath_hw *ah, void *ds,
+                                struct ath_tx_status *ts)
+ {
+@@ -310,161 +395,6 @@ static int ar9003_hw_proc_txdesc(struct 
+       return 0;
+ }
  
-+      ath9k_ps_wakeup(sc);
-       mutex_lock(&sc->mutex);
+-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_isr = ar9003_hw_get_isr;
+-      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
+@@ -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;
  
-       switch (vif->type) {
-@@ -1503,6 +1503,7 @@ static int ath9k_add_interface(struct ie
-       ath9k_do_vif_add_setup(hw, vif);
- out:
-       mutex_unlock(&sc->mutex);
-+      ath9k_ps_restore(sc);
-       return ret;
+       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);
  }
  
-@@ -1517,6 +1518,7 @@ static int ath9k_change_interface(struct
+ 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 */
  
-       ath_dbg(common, ATH_DBG_CONFIG, "Change Interface\n");
-       mutex_lock(&sc->mutex);
-+      ath9k_ps_wakeup(sc);
+       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
+@@ -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;
  
-       /* See if new interface type is valid. */
-       if ((new_type == NL80211_IFTYPE_ADHOC) &&
-@@ -1546,6 +1548,7 @@ static int ath9k_change_interface(struct
+       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 {
+-              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);
  
-       ath9k_do_vif_add_setup(hw, vif);
- out:
-+      ath9k_ps_restore(sc);
-       mutex_unlock(&sc->mutex);
-       return ret;
+ #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)
+ {
  }
-@@ -1558,6 +1561,7 @@ static void ath9k_remove_interface(struc
  
-       ath_dbg(common, ATH_DBG_CONFIG, "Detach Interface\n");
+--- a/drivers/net/wireless/ath/ath9k/hw-ops.h
++++ b/drivers/net/wireless/ath/ath9k/hw-ops.h
+@@ -54,13 +54,10 @@ static inline bool ath9k_hw_getisr(struc
+       return ath9k_hw_ops(ah)->get_isr(ah, masked);
+ }
  
-+      ath9k_ps_wakeup(sc);
-       mutex_lock(&sc->mutex);
+-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);
+ }
  
-       sc->nvifs--;
-@@ -1569,6 +1573,7 @@ static void ath9k_remove_interface(struc
-       ath9k_calculate_summary_state(hw, NULL);
+-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);
  
-       mutex_unlock(&sc->mutex);
-+      ath9k_ps_restore(sc);
++      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);
+-void ath9k_hw_cleartxdesc(struct ath_hw *ah, void *ds)
+-{
+-      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;
+-}
+-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
  
- static void ath9k_enable_ps(struct ath_softc *sc)
-@@ -1809,6 +1814,7 @@ static int ath9k_conf_tx(struct ieee8021
+-#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
  
-       txq = sc->tx.txq_map[queue];
+ #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, ATH9K_PM_NETWORK_SLEEP);
+  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);
-       mutex_lock(&sc->mutex);
++      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;
+       }
  
-       memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
-@@ -1832,6 +1838,7 @@ static int ath9k_conf_tx(struct ieee8021
-                       ath_beaconq_config(sc);
+-      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);
  
-       mutex_unlock(&sc->mutex);
-+      ath9k_ps_restore(sc);
++out:
+       /* re-enable hardware interrupt */
+       ath9k_hw_enable_interrupts(ah);
  
-       return ret;
+@@ -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));
+       }
  }
-@@ -1908,6 +1915,7 @@ static void ath9k_bss_info_changed(struc
-       int slottime;
-       int error;
+--- 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);
-       mutex_lock(&sc->mutex);
+       /* 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);
  
-       if (changed & BSS_CHANGED_BSSID) {
-@@ -2008,6 +2016,7 @@ static void ath9k_bss_info_changed(struc
-       }
+         /*
+          * 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);
  
-       mutex_unlock(&sc->mutex);
-+      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;
  
- static u64 ath9k_get_tsf(struct ieee80211_hw *hw)
---- a/drivers/net/wireless/ath/ath9k/beacon.c
-+++ b/drivers/net/wireless/ath/ath9k/beacon.c
-@@ -392,14 +392,6 @@ void ath_beacon_tasklet(unsigned long da
-       tsf += TU_TO_USEC(ah->config.sw_beacon_response_time);
-       tsftu = TSF_TO_TU((tsf * ATH_BCBUF) >>32, tsf * ATH_BCBUF);
-       slot = (tsftu % (intval * ATH_BCBUF)) / intval;
--      /*
--       * Reverse the slot order to get slot 0 on the TBTT offset that does
--       * not require TSF adjustment and other slots adding
--       * slot/ATH_BCBUF * beacon_int to timestamp. For example, with
--       * ATH_BCBUF = 4, we process beacon slots as follows: 3 2 1 0 3 2 1 ..
--       * and slot 0 is at correct offset to TBTT.
--       */
--      slot = ATH_BCBUF - slot - 1;
-       vif = sc->beacon.bslot[slot];
-       ath_dbg(common, ATH_DBG_BEACON,
-@@ -708,7 +700,7 @@ void ath_beacon_config(struct ath_softc 
-       if (cur_conf->dtim_period == 0)
-               cur_conf->dtim_period = 1;
--      switch (iftype) {
-+      switch (sc->sc_ah->opmode) {
-       case NL80211_IFTYPE_AP:
-               ath_beacon_config_ap(sc, cur_conf);
-               break;
---- a/net/mac80211/rx.c
-+++ b/net/mac80211/rx.c
-@@ -1585,7 +1585,7 @@ ieee80211_drop_unencrypted_mgmt(struct i
- }
+               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);
  
- static int
--__ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
-+__ieee80211_data_to_8023(struct ieee80211_rx_data *rx, bool *port_control)
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -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, 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,
+-                           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 ieee80211_sub_if_data *sdata = rx->sdata;
-       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
-@@ -1593,6 +1593,7 @@ __ieee80211_data_to_8023(struct ieee8021
-       struct ethhdr *ehdr;
-       int ret;
-+      *port_control = false;
-       if (ieee80211_has_a4(hdr->frame_control) &&
-           sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
-               return -1;
-@@ -1611,12 +1612,16 @@ __ieee80211_data_to_8023(struct ieee8021
-               return -1;
-       ret = ieee80211_data_to_8023(rx->skb, sdata->vif.addr, sdata->vif.type);
--      if (ret < 0 || !check_port_control)
-+      if (ret < 0)
-               return ret;
-       ehdr = (struct ethhdr *) rx->skb->data;
--      if (ehdr->h_proto != rx->sdata->control_port_protocol)
--              return -1;
-+      if (ehdr->h_proto == rx->sdata->control_port_protocol) {
-+              *port_control = true;
-+
-+              if (check_port_control)
-+                      return -1;
-+      }
+       struct ath_frame_info *fi = get_frame_info(skb);
++      struct ath_buf *bf = fi->bf;
+       struct ieee80211_hdr *hdr;
  
-       return 0;
+       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);
  }
-@@ -1916,6 +1921,7 @@ ieee80211_rx_h_data(struct ieee80211_rx_
-       struct net_device *dev = sdata->dev;
-       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
-       __le16 fc = hdr->frame_control;
-+      bool port_control;
-       int err;
  
      if (unlikely(!ieee80211_is_data(hdr->frame_control)))
-@@ -1932,13 +1938,21 @@ ieee80211_rx_h_data(struct ieee80211_rx_
-           sdata->vif.type == NL80211_IFTYPE_AP)
-               return RX_DROP_MONITOR;
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;
  
--      err = __ieee80211_data_to_8023(rx);
-+      err = __ieee80211_data_to_8023(rx, &port_control);
-       if (unlikely(err))
-               return RX_DROP_UNUSABLE;
+-                      bf->bf_state.bf_type |= BUF_XRETRY;
+                       if (!bf->bf_stale || bf_next != NULL)
+                               list_move_tail(&bf->list, &bf_head);
  
-       if (!ieee80211_frame_allowed(rx, fc))
-               return RX_DROP_MONITOR;
+-                      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_
+               }
+               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;
  
-+      if (rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
-+          unlikely(port_control) && sdata->bss) {
-+              sdata = container_of(sdata->bss, struct ieee80211_sub_if_data,
-+                                   u.ap);
-+              dev = sdata->dev;
-+              rx->sdata = sdata;
+               __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);
 +      }
 +
-       rx->skb->dev = dev;
++      /* 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
++                      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;
  
-       dev->stats.rx_packets++;
---- a/drivers/net/wireless/ath/ath9k/recv.c
-+++ b/drivers/net/wireless/ath/ath9k/recv.c
-@@ -75,7 +75,6 @@ static void ath_rx_buf_link(struct ath_s
-               *sc->rx.rxlink = bf->bf_daddr;
+@@ -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);
  
-       sc->rx.rxlink = &ds->ds_link;
--      ath9k_hw_rxena(ah);
+               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 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);
+               }
+-              /* 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;
  
- static void ath_setdefantenna(struct ath_softc *sc, u32 antenna)
-@@ -426,9 +425,7 @@ u32 ath_calcrxfilter(struct ath_softc *s
-       else
-               rfilt |= ATH9K_RX_FILTER_BEACON;
+-      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);
  
--      if ((AR_SREV_9280_20_OR_LATER(sc->sc_ah) ||
--          AR_SREV_9285_12_OR_LATER(sc->sc_ah)) &&
--          (sc->sc_ah->opmode == NL80211_IFTYPE_AP) &&
-+      if ((sc->sc_ah->opmode == NL80211_IFTYPE_AP) ||
-           (sc->rx.rxfilter & FIF_PSPOLL))
-               rfilt |= ATH9K_RX_FILTER_PSPOLL;
+@@ -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);
+ }
  
-@@ -486,12 +483,12 @@ start_recv:
- bool ath_stoprecv(struct ath_softc *sc)
+-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;
+-}
+-
+-/*
+- * 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;
+-}
+-
+ u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate)
  {
        struct ath_hw *ah = sc->sc_ah;
--      bool stopped;
-+      bool stopped, reset = false;
-       spin_lock_bh(&sc->rx.rxbuflock);
-       ath9k_hw_abortpcurecv(ah);
-       ath9k_hw_setrxfilter(ah, 0);
--      stopped = ath9k_hw_stopdmarecv(ah);
-+      stopped = ath9k_hw_stopdmarecv(ah, &reset);
-       if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
-               ath_edma_stop_recv(sc);
-@@ -506,7 +503,7 @@ bool ath_stoprecv(struct ath_softc *sc)
-                       "confusing the DMA engine when we start RX up\n");
-               ATH_DBG_WARN_ON_ONCE(!stopped);
+@@ -1632,118 +1767,6 @@ u8 ath_txchainmask_reduction(struct ath_
+               return chainmask;
+ }
+-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;
+-
+-      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;
+-
+-              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 {
+-                      is_sp = false;
+-              }
+-
+-              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;
+       }
+-      bf->bf_flags = setup_tx_flags(skb);
+       bf->bf_mpdu = skb;
+       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;
+       }
+-      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;
+       return bf;
+@@ -1849,16 +1852,9 @@ static void ath_tx_start_dma(struct ath_
+               bf->bf_state.bfs_paprd = txctl->paprd;
+-              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;
+-              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);
+       }
+@@ -1899,15 +1895,18 @@ int ath_tx_start(struct ieee80211_hw *hw
+               hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no);
+       }
+-      /* 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;
++
++                      skb_push(skb, padsize);
++                      memmove(skb->data, skb->data + padsize, padpos);
++                      hdr = (struct ieee80211_hdr *) skb->data;
++              }
+       }
+       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;
+-      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;
+-      }
+-      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);
++              }
+       }
+       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 sk_buff *skb = bf->bf_mpdu;
++      struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
+       unsigned long flags;
+       int tx_flags = 0;
+       if (sendbar)
+               tx_flags = ATH_TX_BAR;
+-      if (!txok) {
++      if (!txok)
+               tx_flags |= ATH_TX_ERROR;
+-              if (bf_isxretried(bf))
+-                      tx_flags |= ATH_TX_XRETRY;
+-      }
++      if (ts->ts_status & ATH9K_TXERR_FILT)
++              tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
+       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);
        }
--      return stopped;
-+      return stopped || reset;
+       /* 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
+ 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 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_
+       }
+       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);
+       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
+@@ -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);
++      else if (sdata->vif.type == NL80211_IFTYPE_WDS)
++              memcpy(mgmt->bssid, da, ETH_ALEN);
+       mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+                                         IEEE80211_STYPE_ACTION);
+--- a/net/mac80211/agg-tx.c
++++ b/net/mac80211/agg-tx.c
+@@ -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 ||
+-          sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
++          sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
++          sdata->vif.type == NL80211_IFTYPE_WDS)
+               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);
+@@ -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 &&
+-          sdata->vif.type != NL80211_IFTYPE_AP)
++          sdata->vif.type != NL80211_IFTYPE_AP &&
++          sdata->vif.type != NL80211_IFTYPE_WDS)
+               return -EINVAL;
+       if (test_sta_flags(sta, WLAN_STA_BLOCK_BA)) {
+--- a/net/mac80211/debugfs_sta.c
++++ b/net/mac80211/debugfs_sta.c
+@@ -59,7 +59,7 @@ static ssize_t sta_flags_read(struct fil
+       char buf[100];
+       struct sta_info *sta = file->private_data;
+       u32 staflags = get_sta_flags(sta);
+-      int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
++      int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s",
+               staflags & WLAN_STA_AUTH ? "AUTH\n" : "",
+               staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
+               staflags & WLAN_STA_PS_STA ? "PS (sta)\n" : "",
+@@ -67,7 +67,6 @@ static ssize_t sta_flags_read(struct fil
+               staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
+               staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
+               staflags & WLAN_STA_WME ? "WME\n" : "",
+-              staflags & WLAN_STA_WDS ? "WDS\n" : "",
+               staflags & WLAN_STA_MFP ? "MFP\n" : "");
+       return simple_read_from_buffer(userbuf, count, ppos, buf, res);
  }
+--- a/net/mac80211/iface.c
++++ b/net/mac80211/iface.c
+@@ -178,7 +178,6 @@ static int ieee80211_do_open(struct net_
+ {
+       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+       struct ieee80211_local *local = sdata->local;
+-      struct sta_info *sta;
+       u32 changed = 0;
+       int res;
+       u32 hw_reconf_flags = 0;
+@@ -290,27 +289,6 @@ static int ieee80211_do_open(struct net_
  
- void ath_flushrecv(struct ath_softc *sc)
-@@ -1767,6 +1764,7 @@ requeue:
-               } else {
-                       list_move_tail(&bf->list, &sc->rx.rxbuf);
-                       ath_rx_buf_link(sc, bf);
-+                      ath9k_hw_rxena(ah);
-               }
-       } while (1);
+       set_bit(SDATA_STATE_RUNNING, &sdata->state);
  
---- a/drivers/net/wireless/ath/ath9k/hw.c
-+++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -1244,6 +1244,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
-       u32 saveDefAntenna;
-       u32 macStaId1;
-       u64 tsf = 0;
-+      bool reset = false;
-       int i, r;
-       ah->txchainmask = common->tx_chainmask;
-@@ -1251,11 +1252,13 @@ int ath9k_hw_reset(struct ath_hw *ah, st
-       if ((common->bus_ops->ath_bus_type != ATH_USB) && !ah->chip_fullsleep) {
-               ath9k_hw_abortpcurecv(ah);
--              if (!ath9k_hw_stopdmarecv(ah)) {
-+              if (!ath9k_hw_stopdmarecv(ah, &reset)) {
-                       ath_dbg(common, ATH_DBG_XMIT,
-                               "Failed to stop receive dma\n");
-                       bChannelChange = false;
+-      if (sdata->vif.type == NL80211_IFTYPE_WDS) {
+-              /* Create STA entry for the WDS peer */
+-              sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
+-                                   GFP_KERNEL);
+-              if (!sta) {
+-                      res = -ENOMEM;
+-                      goto err_del_interface;
+-              }
+-
+-              /* no locking required since STA is not live yet */
+-              sta->flags |= WLAN_STA_AUTHORIZED;
+-
+-              res = sta_info_insert(sta);
+-              if (res) {
+-                      /* STA has been freed */
+-                      goto err_del_interface;
+-              }
+-
+-              rate_control_rate_init(sta);
+-      }
+-
+       /*
+        * set_multicast_list will be invoked by the networking core
+        * which will check whether any increments here were done in
+@@ -344,8 +322,7 @@ static int ieee80211_do_open(struct net_
+       netif_tx_start_all_queues(dev);
+       return 0;
+- err_del_interface:
+-      drv_remove_interface(local, &sdata->vif);
++
+  err_stop:
+       if (!local->open_count)
+               drv_stop(local);
+@@ -718,6 +695,70 @@ static void ieee80211_if_setup(struct ne
+       dev->destructor = free_netdev;
+ }
++static void ieee80211_wds_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
++                                       struct sk_buff *skb)
++{
++      struct ieee80211_local *local = sdata->local;
++      struct ieee80211_rx_status *rx_status;
++      struct ieee802_11_elems elems;
++      struct ieee80211_mgmt *mgmt;
++      struct sta_info *sta;
++      size_t baselen;
++      u32 rates = 0;
++      u16 stype;
++      bool new = false;
++      enum ieee80211_band band = local->hw.conf.channel->band;
++      struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
++
++      rx_status = IEEE80211_SKB_RXCB(skb);
++      mgmt = (struct ieee80211_mgmt *) skb->data;
++      stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
++
++      if (stype != IEEE80211_STYPE_BEACON)
++              return;
++
++      baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
++      if (baselen > skb->len)
++              return;
++
++      ieee802_11_parse_elems(mgmt->u.probe_resp.variable,
++                             skb->len - baselen, &elems);
++
++      rates = ieee80211_sta_get_rates(local, &elems, band);
++
++      rcu_read_lock();
++
++      sta = sta_info_get(sdata, sdata->u.wds.remote_addr);
++
++      if (!sta) {
++              rcu_read_unlock();
++              sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
++                                   GFP_KERNEL);
++              if (!sta)
++                      return;
++
++              new = true;
++      }
++
++      sta->last_rx = jiffies;
++      sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
++
++      if (elems.ht_cap_elem)
++              ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
++                              elems.ht_cap_elem, &sta->sta.ht_cap);
++
++      if (elems.wmm_param)
++              set_sta_flags(sta, WLAN_STA_WME);
++
++      if (new) {
++              sta->flags = WLAN_STA_AUTHORIZED;
++              rate_control_rate_init(sta);
++              sta_info_insert_rcu(sta);
++      }
++
++      rcu_read_unlock();
++}
++
+ static void ieee80211_iface_work(struct work_struct *work)
+ {
+       struct ieee80211_sub_if_data *sdata =
+@@ -822,6 +863,9 @@ static void ieee80211_iface_work(struct 
+                               break;
+                       ieee80211_mesh_rx_queued_mgmt(sdata, skb);
+                       break;
++              case NL80211_IFTYPE_WDS:
++                      ieee80211_wds_rx_queued_mgmt(sdata, skb);
++                      break;
+               default:
+                       WARN(1, "frame for unexpected interface type");
+                       break;
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -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 &&
+-                  sdata->vif.type != NL80211_IFTYPE_AP)
++                  sdata->vif.type != NL80211_IFTYPE_AP &&
++                  sdata->vif.type != NL80211_IFTYPE_WDS)
+                       break;
+               /* verify action_code is present */
+@@ -2378,13 +2379,14 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
+       if (!ieee80211_vif_is_mesh(&sdata->vif) &&
+           sdata->vif.type != NL80211_IFTYPE_ADHOC &&
+-          sdata->vif.type != NL80211_IFTYPE_STATION)
++          sdata->vif.type != NL80211_IFTYPE_STATION &&
++          sdata->vif.type != NL80211_IFTYPE_WDS)
+               return RX_DROP_MONITOR;
+       switch (stype) {
+       case cpu_to_le16(IEEE80211_STYPE_BEACON):
+       case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
+-              /* process for all: mesh, mlme, ibss */
++              /* process for all: mesh, mlme, ibss, wds */
+               break;
+       case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
+       case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
+@@ -2727,10 +2729,16 @@ static int prepare_for_handlers(struct i
                }
-+              if (reset)
-+                      bChannelChange = false;
+               break;
+       case NL80211_IFTYPE_WDS:
+-              if (bssid || !ieee80211_is_data(hdr->frame_control))
+-                      return 0;
+               if (compare_ether_addr(sdata->u.wds.remote_addr, hdr->addr2))
+                       return 0;
++
++              if (ieee80211_is_data(hdr->frame_control) ||
++                  ieee80211_is_action(hdr->frame_control)) {
++                      if (compare_ether_addr(sdata->vif.addr, hdr->addr1))
++                              return 0;
++              } else if (!ieee80211_is_beacon(hdr->frame_control))
++                      return 0;
++
+               break;
+       default:
+               /* should never get here */
+--- a/net/mac80211/sta_info.h
++++ b/net/mac80211/sta_info.h
+@@ -31,7 +31,6 @@
+  *    frames.
+  * @WLAN_STA_ASSOC_AP: We're associated to that station, it is an AP.
+  * @WLAN_STA_WME: Station is a QoS-STA.
+- * @WLAN_STA_WDS: Station is one of our WDS peers.
+  * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the
+  *    IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next
+  *    frame to this station is transmitted.
+@@ -54,7 +53,6 @@ enum ieee80211_sta_info_flags {
+       WLAN_STA_SHORT_PREAMBLE = 1<<4,
+       WLAN_STA_ASSOC_AP       = 1<<5,
+       WLAN_STA_WME            = 1<<6,
+-      WLAN_STA_WDS            = 1<<7,
+       WLAN_STA_CLEAR_PS_FILT  = 1<<9,
+       WLAN_STA_MFP            = 1<<10,
+       WLAN_STA_BLOCK_BA       = 1<<11,
+--- 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 (!ath9k_hw_setpower(ah, ATH9K_PM_AWAKE))
---- a/drivers/net/wireless/ath/ath9k/mac.c
-+++ b/drivers/net/wireless/ath/ath9k/mac.c
-@@ -710,18 +710,36 @@ void ath9k_hw_abortpcurecv(struct ath_hw
+-      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
+       }
  }
- EXPORT_SYMBOL(ath9k_hw_abortpcurecv);
  
--bool ath9k_hw_stopdmarecv(struct ath_hw *ah)
-+bool ath9k_hw_stopdmarecv(struct ath_hw *ah, bool *reset)
+-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)
  {
- #define AH_RX_STOP_DMA_TIMEOUT 10000   /* usec */
-       struct ath_common *common = ath9k_hw_common(ah);
-+      u32 mac_status, last_mac_status = 0;
-       int i;
+@@ -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;
  
-+      /* Enable access to the DMA observation bus */
-+      REG_WRITE(ah, AR_MACMISC,
-+                ((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
-+                 (AR_MACMISC_MISC_OBS_BUS_1 <<
-+                  AR_MACMISC_MISC_OBS_BUS_MSB_S)));
+@@ -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_WRITE(ah, AR_CR, AR_CR_RXD);
++      REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
++                  AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV);
+ }
  
-       /* Wait for rx enable bit to go low */
-       for (i = AH_RX_STOP_DMA_TIMEOUT / AH_TIME_QUANTUM; i != 0; i--) {
-               if ((REG_READ(ah, AR_CR) & AR_CR_RXE) == 0)
-                       break;
+ 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);
+-              }
 +
-+              if (!AR_SREV_9300_20_OR_LATER(ah)) {
-+                      mac_status = REG_READ(ah, AR_DMADBG_7) & 0x7f0;
-+                      if (mac_status == 0x1c0 && mac_status == last_mac_status) {
-+                              *reset = true;
-+                              break;
-+                      }
++      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;
 +
-+                      last_mac_status = mac_status;
-+              }
++              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);
 +
-               udelay(AH_TIME_QUANTUM);
++              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);
        }
+ }
  
---- a/drivers/net/wireless/ath/ath9k/mac.h
-+++ b/drivers/net/wireless/ath/ath9k/mac.h
-@@ -695,7 +695,7 @@ bool ath9k_hw_setrxabort(struct ath_hw *
- void ath9k_hw_putrxbuf(struct ath_hw *ah, u32 rxdp);
- void ath9k_hw_startpcureceive(struct ath_hw *ah, bool is_scanning);
- void ath9k_hw_abortpcurecv(struct ath_hw *ah);
--bool ath9k_hw_stopdmarecv(struct ath_hw *ah);
-+bool ath9k_hw_stopdmarecv(struct ath_hw *ah, bool *reset);
- int ath9k_hw_beaconq_setup(struct ath_hw *ah);
- /* Interrupt Handling */
+@@ -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
+@@ -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);
+       }
+       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 */
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