X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=net%2Fmac80211%2Ftx.c;h=4788f7b91f493fa64ae664bad13e69488fddba6a;hb=087d833e5a9f67ba933cb32eaf5a2279c1a5b47c;hp=99590e4ce30bf7e126547105037a7c972341c96c;hpb=51fb61e76d952e6bc2fbdd9f0d38425fbab1cf31;p=safe%2Fjmp%2Flinux-2.6

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 99590e4..4788f7b 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -25,11 +25,12 @@
 #include <asm/unaligned.h>
 
 #include "ieee80211_i.h"
-#include "ieee80211_led.h"
+#include "led.h"
+#include "mesh.h"
 #include "wep.h"
 #include "wpa.h"
 #include "wme.h"
-#include "ieee80211_rate.h"
+#include "rate.h"
 
 #define IEEE80211_TX_OK		0
 #define IEEE80211_TX_AGAIN	1
@@ -37,23 +38,12 @@
 
 /* misc utils */
 
-static inline void ieee80211_include_sequence(struct ieee80211_sub_if_data *sdata,
-					      struct ieee80211_hdr *hdr)
-{
-	/* Set the sequence number for this frame. */
-	hdr->seq_ctrl = cpu_to_le16(sdata->sequence);
-
-	/* Increase the sequence number. */
-	sdata->sequence = (sdata->sequence + 0x10) & IEEE80211_SCTL_SEQ;
-}
-
 #ifdef CONFIG_MAC80211_LOWTX_FRAME_DUMP
 static void ieee80211_dump_frame(const char *ifname, const char *title,
 				 const struct sk_buff *skb)
 {
-	const struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	u16 fc;
-	int hdrlen;
+	const struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	unsigned int hdrlen;
 	DECLARE_MAC_BUF(mac);
 
 	printk(KERN_DEBUG "%s: %s (len=%d)", ifname, title, skb->len);
@@ -62,13 +52,12 @@ static void ieee80211_dump_frame(const char *ifname, const char *title,
 		return;
 	}
 
-	fc = le16_to_cpu(hdr->frame_control);
-	hdrlen = ieee80211_get_hdrlen(fc);
+	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 	if (hdrlen > skb->len)
 		hdrlen = skb->len;
 	if (hdrlen >= 4)
 		printk(" FC=0x%04x DUR=0x%04x",
-		       fc, le16_to_cpu(hdr->duration_id));
+		    le16_to_cpu(hdr->frame_control), le16_to_cpu(hdr->duration_id));
 	if (hdrlen >= 10)
 		printk(" A1=%s", print_mac(mac, hdr->addr1));
 	if (hdrlen >= 16)
@@ -86,15 +75,20 @@ static inline void ieee80211_dump_frame(const char *ifname, const char *title,
 }
 #endif /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
 
-static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
-			      int next_frag_len)
+static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
+				 int next_frag_len)
 {
 	int rate, mrate, erp, dur, i;
-	struct ieee80211_rate *txrate = tx->u.tx.rate;
+	struct ieee80211_rate *txrate;
 	struct ieee80211_local *local = tx->local;
-	struct ieee80211_hw_mode *mode = tx->u.tx.mode;
+	struct ieee80211_supported_band *sband;
 
-	erp = txrate->flags & IEEE80211_RATE_ERP;
+	sband = local->hw.wiphy->bands[tx->channel->band];
+	txrate = &sband->bitrates[tx->rate_idx];
+
+	erp = 0;
+	if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+		erp = txrate->flags & IEEE80211_RATE_ERP_G;
 
 	/*
 	 * data and mgmt (except PS Poll):
@@ -134,7 +128,7 @@ static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
 
 	/* data/mgmt */
 	if (0 /* FIX: data/mgmt during CFP */)
-		return 32768;
+		return cpu_to_le16(32768);
 
 	if (group_addr) /* Group address as the destination - no ACK */
 		return 0;
@@ -150,20 +144,36 @@ static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
 	 * Mandatory rates for IEEE 802.11g PHY: 1, 2, 5.5, 11, 6, 12, 24 Mbps
 	 */
 	rate = -1;
-	mrate = 10; /* use 1 Mbps if everything fails */
-	for (i = 0; i < mode->num_rates; i++) {
-		struct ieee80211_rate *r = &mode->rates[i];
-		if (r->rate > txrate->rate)
-			break;
+	/* use lowest available if everything fails */
+	mrate = sband->bitrates[0].bitrate;
+	for (i = 0; i < sband->n_bitrates; i++) {
+		struct ieee80211_rate *r = &sband->bitrates[i];
 
-		if (IEEE80211_RATE_MODULATION(txrate->flags) !=
-		    IEEE80211_RATE_MODULATION(r->flags))
-			continue;
+		if (r->bitrate > txrate->bitrate)
+			break;
 
-		if (r->flags & IEEE80211_RATE_BASIC)
-			rate = r->rate;
-		else if (r->flags & IEEE80211_RATE_MANDATORY)
-			mrate = r->rate;
+		if (tx->sdata->basic_rates & BIT(i))
+			rate = r->bitrate;
+
+		switch (sband->band) {
+		case IEEE80211_BAND_2GHZ: {
+			u32 flag;
+			if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+				flag = IEEE80211_RATE_MANDATORY_G;
+			else
+				flag = IEEE80211_RATE_MANDATORY_B;
+			if (r->flags & flag)
+				mrate = r->bitrate;
+			break;
+		}
+		case IEEE80211_BAND_5GHZ:
+			if (r->flags & IEEE80211_RATE_MANDATORY_A)
+				mrate = r->bitrate;
+			break;
+		case IEEE80211_NUM_BANDS:
+			WARN_ON(1);
+			break;
+		}
 	}
 	if (rate == -1) {
 		/* No matching basic rate found; use highest suitable mandatory
@@ -176,7 +186,7 @@ static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
 	 * to closest integer */
 
 	dur = ieee80211_frame_duration(local, 10, rate, erp,
-		       tx->sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
+				tx->sdata->bss_conf.use_short_preamble);
 
 	if (next_frag_len) {
 		/* Frame is fragmented: duration increases with time needed to
@@ -184,24 +194,11 @@ static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
 		dur *= 2; /* ACK + SIFS */
 		/* next fragment */
 		dur += ieee80211_frame_duration(local, next_frag_len,
-				txrate->rate, erp,
-				tx->sdata->flags &
-					IEEE80211_SDATA_SHORT_PREAMBLE);
+				txrate->bitrate, erp,
+				tx->sdata->bss_conf.use_short_preamble);
 	}
 
-	return dur;
-}
-
-static inline int __ieee80211_queue_stopped(const struct ieee80211_local *local,
-					    int queue)
-{
-	return test_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
-}
-
-static inline int __ieee80211_queue_pending(const struct ieee80211_local *local,
-					    int queue)
-{
-	return test_bit(IEEE80211_LINK_STATE_PENDING, &local->state[queue]);
+	return cpu_to_le16(dur);
 }
 
 static int inline is_ieee80211_device(struct net_device *dev,
@@ -213,29 +210,32 @@ static int inline is_ieee80211_device(struct net_device *dev,
 
 /* tx handlers */
 
-static ieee80211_txrx_result
-ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
+static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
 {
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	struct sk_buff *skb = tx->skb;
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
 	u32 sta_flags;
 
-	if (unlikely(tx->flags & IEEE80211_TXRXD_TX_INJECTED))
-		return TXRX_CONTINUE;
+	if (unlikely(info->flags & IEEE80211_TX_CTL_INJECTED))
+		return TX_CONTINUE;
 
 	if (unlikely(tx->local->sta_sw_scanning) &&
 	    ((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
 	     (tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ))
-		return TXRX_DROP;
+		return TX_DROP;
+
+	if (tx->sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
+		return TX_CONTINUE;
 
-	if (tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED)
-		return TXRX_CONTINUE;
+	if (tx->flags & IEEE80211_TX_PS_BUFFERED)
+		return TX_CONTINUE;
 
-	sta_flags = tx->sta ? tx->sta->flags : 0;
+	sta_flags = tx->sta ? get_sta_flags(tx->sta) : 0;
 
-	if (likely(tx->flags & IEEE80211_TXRXD_TXUNICAST)) {
+	if (likely(tx->flags & IEEE80211_TX_UNICAST)) {
 		if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
 			     tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
 			     (tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
@@ -246,7 +246,7 @@ ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
 			       tx->dev->name, print_mac(mac, hdr->addr1));
 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 			I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc);
-			return TXRX_DROP;
+			return TX_DROP;
 		}
 	} else {
 		if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
@@ -256,23 +256,12 @@ ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
 			 * No associated STAs - no need to send multicast
 			 * frames.
 			 */
-			return TXRX_DROP;
+			return TX_DROP;
 		}
-		return TXRX_CONTINUE;
+		return TX_CONTINUE;
 	}
 
-	return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_tx_h_sequence(struct ieee80211_txrx_data *tx)
-{
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
-
-	if (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control)) >= 24)
-		ieee80211_include_sequence(tx->sdata, hdr);
-
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
 /* This function is called whenever the AP is about to exceed the maximum limit
@@ -293,8 +282,7 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
 
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
 		struct ieee80211_if_ap *ap;
-		if (sdata->dev == local->mdev ||
-		    sdata->vif.type != IEEE80211_IF_TYPE_AP)
+		if (sdata->vif.type != IEEE80211_IF_TYPE_AP)
 			continue;
 		ap = &sdata->u.ap;
 		skb = skb_dequeue(&ap->ps_bc_buf);
@@ -304,10 +292,8 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
 		}
 		total += skb_queue_len(&ap->ps_bc_buf);
 	}
-	rcu_read_unlock();
 
-	read_lock_bh(&local->sta_lock);
-	list_for_each_entry(sta, &local->sta_list, list) {
+	list_for_each_entry_rcu(sta, &local->sta_list, list) {
 		skb = skb_dequeue(&sta->ps_tx_buf);
 		if (skb) {
 			purged++;
@@ -315,16 +301,21 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
 		}
 		total += skb_queue_len(&sta->ps_tx_buf);
 	}
-	read_unlock_bh(&local->sta_lock);
+
+	rcu_read_unlock();
 
 	local->total_ps_buffered = total;
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 	printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n",
 	       wiphy_name(local->hw.wiphy), purged);
+#endif
 }
 
-static ieee80211_txrx_result
-ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
+static ieee80211_tx_result
+ieee80211_tx_h_multicast_ps_buf(struct ieee80211_tx_data *tx)
 {
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+
 	/*
 	 * broadcast/multicast frame
 	 *
@@ -333,13 +324,17 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
 	 * This is done either by the hardware or us.
 	 */
 
-	/* not AP/IBSS or ordered frame */
-	if (!tx->sdata->bss || (tx->fc & IEEE80211_FCTL_ORDER))
-		return TXRX_CONTINUE;
+	/* powersaving STAs only in AP/VLAN mode */
+	if (!tx->sdata->bss)
+		return TX_CONTINUE;
+
+	/* no buffering for ordered frames */
+	if (tx->fc & IEEE80211_FCTL_ORDER)
+		return TX_CONTINUE;
 
 	/* no stations in PS mode */
 	if (!atomic_read(&tx->sdata->bss->num_sta_ps))
-		return TXRX_CONTINUE;
+		return TX_CONTINUE;
 
 	/* buffered in mac80211 */
 	if (tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) {
@@ -347,110 +342,114 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
 			purge_old_ps_buffers(tx->local);
 		if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >=
 		    AP_MAX_BC_BUFFER) {
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 			if (net_ratelimit()) {
 				printk(KERN_DEBUG "%s: BC TX buffer full - "
 				       "dropping the oldest frame\n",
 				       tx->dev->name);
 			}
+#endif
 			dev_kfree_skb(skb_dequeue(&tx->sdata->bss->ps_bc_buf));
 		} else
 			tx->local->total_ps_buffered++;
 		skb_queue_tail(&tx->sdata->bss->ps_bc_buf, tx->skb);
-		return TXRX_QUEUED;
+		return TX_QUEUED;
 	}
 
 	/* buffered in hardware */
-	tx->u.tx.control->flags |= IEEE80211_TXCTL_SEND_AFTER_DTIM;
+	info->flags |= IEEE80211_TX_CTL_SEND_AFTER_DTIM;
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
-static ieee80211_txrx_result
-ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
+static ieee80211_tx_result
+ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx)
 {
 	struct sta_info *sta = tx->sta;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+	u32 staflags;
 	DECLARE_MAC_BUF(mac);
 
 	if (unlikely(!sta ||
 		     ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
 		      (tx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP)))
-		return TXRX_CONTINUE;
+		return TX_CONTINUE;
 
-	if (unlikely((sta->flags & WLAN_STA_PS) && !sta->pspoll)) {
-		struct ieee80211_tx_packet_data *pkt_data;
+	staflags = get_sta_flags(sta);
+
+	if (unlikely((staflags & WLAN_STA_PS) &&
+		     !(staflags & WLAN_STA_PSPOLL))) {
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 		printk(KERN_DEBUG "STA %s aid %d: PS buffer (entries "
 		       "before %d)\n",
 		       print_mac(mac, sta->addr), sta->aid,
 		       skb_queue_len(&sta->ps_tx_buf));
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-		sta->flags |= WLAN_STA_TIM;
 		if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
 			purge_old_ps_buffers(tx->local);
 		if (skb_queue_len(&sta->ps_tx_buf) >= STA_MAX_TX_BUFFER) {
 			struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf);
+#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 			if (net_ratelimit()) {
 				printk(KERN_DEBUG "%s: STA %s TX "
 				       "buffer full - dropping oldest frame\n",
 				       tx->dev->name, print_mac(mac, sta->addr));
 			}
+#endif
 			dev_kfree_skb(old);
 		} else
 			tx->local->total_ps_buffered++;
+
 		/* Queue frame to be sent after STA sends an PS Poll frame */
-		if (skb_queue_empty(&sta->ps_tx_buf)) {
-			if (tx->local->ops->set_tim)
-				tx->local->ops->set_tim(local_to_hw(tx->local),
-						       sta->aid, 1);
-			if (tx->sdata->bss)
-				bss_tim_set(tx->local, tx->sdata->bss, sta->aid);
-		}
-		pkt_data = (struct ieee80211_tx_packet_data *)tx->skb->cb;
-		pkt_data->jiffies = jiffies;
+		if (skb_queue_empty(&sta->ps_tx_buf))
+			sta_info_set_tim_bit(sta);
+
+		info->control.jiffies = jiffies;
 		skb_queue_tail(&sta->ps_tx_buf, tx->skb);
-		return TXRX_QUEUED;
+		return TX_QUEUED;
 	}
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
-	else if (unlikely(sta->flags & WLAN_STA_PS)) {
+	else if (unlikely(test_sta_flags(sta, WLAN_STA_PS))) {
 		printk(KERN_DEBUG "%s: STA %s in PS mode, but pspoll "
 		       "set -> send frame\n", tx->dev->name,
 		       print_mac(mac, sta->addr));
 	}
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-	sta->pspoll = 0;
+	clear_sta_flags(sta, WLAN_STA_PSPOLL);
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
-static ieee80211_txrx_result
-ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
+static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_ps_buf(struct ieee80211_tx_data *tx)
 {
-	if (unlikely(tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED))
-		return TXRX_CONTINUE;
+	if (unlikely(tx->flags & IEEE80211_TX_PS_BUFFERED))
+		return TX_CONTINUE;
 
-	if (tx->flags & IEEE80211_TXRXD_TXUNICAST)
+	if (tx->flags & IEEE80211_TX_UNICAST)
 		return ieee80211_tx_h_unicast_ps_buf(tx);
 	else
 		return ieee80211_tx_h_multicast_ps_buf(tx);
 }
 
-static ieee80211_txrx_result
-ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
+static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 {
 	struct ieee80211_key *key;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
 	u16 fc = tx->fc;
 
-	if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
+	if (unlikely(tx->skb->do_not_encrypt))
 		tx->key = NULL;
 	else if (tx->sta && (key = rcu_dereference(tx->sta->key)))
 		tx->key = key;
 	else if ((key = rcu_dereference(tx->sdata->default_key)))
 		tx->key = key;
 	else if (tx->sdata->drop_unencrypted &&
-		 !(tx->u.tx.control->flags & IEEE80211_TXCTL_EAPOL_FRAME) &&
-		 !(tx->flags & IEEE80211_TXRXD_TX_INJECTED)) {
+		 (tx->skb->protocol != cpu_to_be16(ETH_P_PAE)) &&
+		 !(info->flags & IEEE80211_TX_CTL_INJECTED)) {
 		I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted);
-		return TXRX_DROP;
+		return TX_DROP;
 	} else
 		tx->key = NULL;
 
@@ -477,15 +476,197 @@ ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
 	}
 
 	if (!tx->key || !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
-		tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+		tx->skb->do_not_encrypt = 1;
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
-static ieee80211_txrx_result
-ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
+static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 {
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
+	struct rate_selection rsel;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+
+	sband = tx->local->hw.wiphy->bands[tx->channel->band];
+
+	if (likely(tx->rate_idx < 0)) {
+		rate_control_get_rate(tx->dev, sband, tx->skb, &rsel);
+		tx->rate_idx = rsel.rate_idx;
+		if (unlikely(rsel.probe_idx >= 0)) {
+			info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
+			tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG;
+			info->control.alt_retry_rate_idx = tx->rate_idx;
+			tx->rate_idx = rsel.probe_idx;
+		} else
+			info->control.alt_retry_rate_idx = -1;
+
+		if (unlikely(tx->rate_idx < 0))
+			return TX_DROP;
+	} else
+		info->control.alt_retry_rate_idx = -1;
+
+	if (tx->sdata->bss_conf.use_cts_prot &&
+	    (tx->flags & IEEE80211_TX_FRAGMENTED) && (rsel.nonerp_idx >= 0)) {
+		tx->last_frag_rate_idx = tx->rate_idx;
+		if (rsel.probe_idx >= 0)
+			tx->flags &= ~IEEE80211_TX_PROBE_LAST_FRAG;
+		else
+			tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG;
+		tx->rate_idx = rsel.nonerp_idx;
+		info->tx_rate_idx = rsel.nonerp_idx;
+		info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE;
+	} else {
+		tx->last_frag_rate_idx = tx->rate_idx;
+		info->tx_rate_idx = tx->rate_idx;
+	}
+	info->tx_rate_idx = tx->rate_idx;
+
+	return TX_CONTINUE;
+}
+
+static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+	struct ieee80211_supported_band *sband;
+
+	sband = tx->local->hw.wiphy->bands[tx->channel->band];
+
+	if (tx->sta)
+		info->control.aid = tx->sta->aid;
+
+	if (!info->control.retry_limit) {
+		if (!is_multicast_ether_addr(hdr->addr1)) {
+			int len = min_t(int, tx->skb->len + FCS_LEN,
+					tx->local->fragmentation_threshold);
+			if (len > tx->local->rts_threshold
+			    && tx->local->rts_threshold <
+						IEEE80211_MAX_RTS_THRESHOLD) {
+				info->flags |= IEEE80211_TX_CTL_USE_RTS_CTS;
+				info->flags |=
+					IEEE80211_TX_CTL_LONG_RETRY_LIMIT;
+				info->control.retry_limit =
+					tx->local->long_retry_limit;
+			} else {
+				info->control.retry_limit =
+					tx->local->short_retry_limit;
+			}
+		} else {
+			info->control.retry_limit = 1;
+		}
+	}
+
+	if (tx->flags & IEEE80211_TX_FRAGMENTED) {
+		/* Do not use multiple retry rates when sending fragmented
+		 * frames.
+		 * TODO: The last fragment could still use multiple retry
+		 * rates. */
+		info->control.alt_retry_rate_idx = -1;
+	}
+
+	/* Use CTS protection for unicast frames sent using extended rates if
+	 * there are associated non-ERP stations and RTS/CTS is not configured
+	 * for the frame. */
+	if ((tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) &&
+	    (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_ERP_G) &&
+	    (tx->flags & IEEE80211_TX_UNICAST) &&
+	    tx->sdata->bss_conf.use_cts_prot &&
+	    !(info->flags & IEEE80211_TX_CTL_USE_RTS_CTS))
+		info->flags |= IEEE80211_TX_CTL_USE_CTS_PROTECT;
+
+	/* Transmit data frames using short preambles if the driver supports
+	 * short preambles at the selected rate and short preambles are
+	 * available on the network at the current point in time. */
+	if (ieee80211_is_data(hdr->frame_control) &&
+	    (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
+	    tx->sdata->bss_conf.use_short_preamble &&
+	    (!tx->sta || test_sta_flags(tx->sta, WLAN_STA_SHORT_PREAMBLE))) {
+		info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE;
+	}
+
+	if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ||
+	    (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) {
+		struct ieee80211_rate *rate;
+		s8 baserate = -1;
+		int idx;
+
+		/* Do not use multiple retry rates when using RTS/CTS */
+		info->control.alt_retry_rate_idx = -1;
+
+		/* Use min(data rate, max base rate) as CTS/RTS rate */
+		rate = &sband->bitrates[tx->rate_idx];
+
+		for (idx = 0; idx < sband->n_bitrates; idx++) {
+			if (sband->bitrates[idx].bitrate > rate->bitrate)
+				continue;
+			if (tx->sdata->basic_rates & BIT(idx) &&
+			    (baserate < 0 ||
+			     (sband->bitrates[baserate].bitrate
+			      < sband->bitrates[idx].bitrate)))
+				baserate = idx;
+		}
+
+		if (baserate >= 0)
+			info->control.rts_cts_rate_idx = baserate;
+		else
+			info->control.rts_cts_rate_idx = 0;
+	}
+
+	if (tx->sta)
+		info->control.aid = tx->sta->aid;
+
+	return TX_CONTINUE;
+}
+
+static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
+	u16 *seq;
+	u8 *qc;
+	int tid;
+
+	/* only for injected frames */
+	if (unlikely(ieee80211_is_ctl(hdr->frame_control)))
+		return TX_CONTINUE;
+
+	if (ieee80211_hdrlen(hdr->frame_control) < 24)
+		return TX_CONTINUE;
+
+	if (!ieee80211_is_data_qos(hdr->frame_control)) {
+		info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
+		return TX_CONTINUE;
+	}
+
+	/*
+	 * This should be true for injected/management frames only, for
+	 * management frames we have set the IEEE80211_TX_CTL_ASSIGN_SEQ
+	 * above since they are not QoS-data frames.
+	 */
+	if (!tx->sta)
+		return TX_CONTINUE;
+
+	/* include per-STA, per-TID sequence counter */
+
+	qc = ieee80211_get_qos_ctl(hdr);
+	tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
+	seq = &tx->sta->tid_seq[tid];
+
+	hdr->seq_ctrl = cpu_to_le16(*seq);
+
+	/* Increase the sequence number. */
+	*seq = (*seq + 0x10) & IEEE80211_SCTL_SEQ;
+
+	return TX_CONTINUE;
+}
+
+static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
 	size_t hdrlen, per_fragm, num_fragm, payload_len, left;
 	struct sk_buff **frags, *first, *frag;
 	int i;
@@ -493,12 +674,22 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
 	u8 *pos;
 	int frag_threshold = tx->local->fragmentation_threshold;
 
-	if (!(tx->flags & IEEE80211_TXRXD_FRAGMENTED))
-		return TXRX_CONTINUE;
+	if (!(tx->flags & IEEE80211_TX_FRAGMENTED))
+		return TX_CONTINUE;
+
+	/*
+	 * Warn when submitting a fragmented A-MPDU frame and drop it.
+	 * This scenario is handled in __ieee80211_tx_prepare but extra
+	 * caution taken here as fragmented ampdu may cause Tx stop.
+	 */
+	if (WARN_ON(tx->flags & IEEE80211_TX_CTL_AMPDU ||
+		    skb_get_queue_mapping(tx->skb) >=
+			ieee80211_num_regular_queues(&tx->local->hw)))
+		return TX_DROP;
 
 	first = tx->skb;
 
-	hdrlen = ieee80211_get_hdrlen(tx->fc);
+	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 	payload_len = first->len - hdrlen;
 	per_fragm = frag_threshold - hdrlen - FCS_LEN;
 	num_fragm = DIV_ROUND_UP(payload_len, per_fragm);
@@ -539,19 +730,21 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
 		fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG));
 		copylen = left > per_fragm ? per_fragm : left;
 		memcpy(skb_put(frag, copylen), pos, copylen);
+		memcpy(frag->cb, first->cb, sizeof(frag->cb));
+		skb_copy_queue_mapping(frag, first);
+		frag->do_not_encrypt = first->do_not_encrypt;
 
 		pos += copylen;
 		left -= copylen;
 	}
 	skb_trim(first, hdrlen + per_fragm);
 
-	tx->u.tx.num_extra_frag = num_fragm - 1;
-	tx->u.tx.extra_frag = frags;
+	tx->num_extra_frag = num_fragm - 1;
+	tx->extra_frag = frags;
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 
  fail:
-	printk(KERN_DEBUG "%s: failed to fragment frame\n", tx->dev->name);
 	if (frags) {
 		for (i = 0; i < num_fragm - 1; i++)
 			if (frags[i])
@@ -559,14 +752,14 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
 		kfree(frags);
 	}
 	I802_DEBUG_INC(tx->local->tx_handlers_drop_fragment);
-	return TXRX_DROP;
+	return TX_DROP;
 }
 
-static ieee80211_txrx_result
-ieee80211_tx_h_encrypt(struct ieee80211_txrx_data *tx)
+static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_encrypt(struct ieee80211_tx_data *tx)
 {
 	if (!tx->key)
-		return TXRX_CONTINUE;
+		return TX_CONTINUE;
 
 	switch (tx->key->conf.alg) {
 	case ALG_WEP:
@@ -579,222 +772,59 @@ ieee80211_tx_h_encrypt(struct ieee80211_txrx_data *tx)
 
 	/* not reached */
 	WARN_ON(1);
-	return TXRX_DROP;
+	return TX_DROP;
 }
 
-static ieee80211_txrx_result
-ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
+static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_calculate_duration(struct ieee80211_tx_data *tx)
 {
-	struct rate_selection rsel;
-
-	if (likely(!tx->u.tx.rate)) {
-		rate_control_get_rate(tx->dev, tx->u.tx.mode, tx->skb, &rsel);
-		tx->u.tx.rate = rsel.rate;
-		if (unlikely(rsel.probe != NULL)) {
-			tx->u.tx.control->flags |=
-				IEEE80211_TXCTL_RATE_CTRL_PROBE;
-			tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
-			tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val;
-			tx->u.tx.rate = rsel.probe;
-		} else
-			tx->u.tx.control->alt_retry_rate = -1;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
+	int next_len, i;
+	int group_addr = is_multicast_ether_addr(hdr->addr1);
 
-		if (!tx->u.tx.rate)
-			return TXRX_DROP;
-	} else
-		tx->u.tx.control->alt_retry_rate = -1;
-
-	if (tx->u.tx.mode->mode == MODE_IEEE80211G &&
-	    (tx->sdata->flags & IEEE80211_SDATA_USE_PROTECTION) &&
-	    (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && rsel.nonerp) {
-		tx->u.tx.last_frag_rate = tx->u.tx.rate;
-		if (rsel.probe)
-			tx->flags &= ~IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
-		else
-			tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
-		tx->u.tx.rate = rsel.nonerp;
-		tx->u.tx.control->rate = rsel.nonerp;
-		tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
-	} else {
-		tx->u.tx.last_frag_rate = tx->u.tx.rate;
-		tx->u.tx.control->rate = tx->u.tx.rate;
+	if (!(tx->flags & IEEE80211_TX_FRAGMENTED)) {
+		hdr->duration_id = ieee80211_duration(tx, group_addr, 0);
+		return TX_CONTINUE;
 	}
-	tx->u.tx.control->tx_rate = tx->u.tx.rate->val;
 
-	return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
-{
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
-	u16 fc = le16_to_cpu(hdr->frame_control);
-	u16 dur;
-	struct ieee80211_tx_control *control = tx->u.tx.control;
-	struct ieee80211_hw_mode *mode = tx->u.tx.mode;
+	hdr->duration_id = ieee80211_duration(tx, group_addr,
+					      tx->extra_frag[0]->len);
 
-	if (!control->retry_limit) {
-		if (!is_multicast_ether_addr(hdr->addr1)) {
-			if (tx->skb->len + FCS_LEN > tx->local->rts_threshold
-			    && tx->local->rts_threshold <
-					IEEE80211_MAX_RTS_THRESHOLD) {
-				control->flags |=
-					IEEE80211_TXCTL_USE_RTS_CTS;
-				control->flags |=
-					IEEE80211_TXCTL_LONG_RETRY_LIMIT;
-				control->retry_limit =
-					tx->local->long_retry_limit;
-			} else {
-				control->retry_limit =
-					tx->local->short_retry_limit;
-			}
+	for (i = 0; i < tx->num_extra_frag; i++) {
+		if (i + 1 < tx->num_extra_frag) {
+			next_len = tx->extra_frag[i + 1]->len;
 		} else {
-			control->retry_limit = 1;
+			next_len = 0;
+			tx->rate_idx = tx->last_frag_rate_idx;
 		}
-	}
-
-	if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
-		/* Do not use multiple retry rates when sending fragmented
-		 * frames.
-		 * TODO: The last fragment could still use multiple retry
-		 * rates. */
-		control->alt_retry_rate = -1;
-	}
-
-	/* Use CTS protection for unicast frames sent using extended rates if
-	 * there are associated non-ERP stations and RTS/CTS is not configured
-	 * for the frame. */
-	if (mode->mode == MODE_IEEE80211G &&
-	    (tx->u.tx.rate->flags & IEEE80211_RATE_ERP) &&
-	    (tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
-	    (tx->sdata->flags & IEEE80211_SDATA_USE_PROTECTION) &&
-	    !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
-		control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT;
-
-	/* Transmit data frames using short preambles if the driver supports
-	 * short preambles at the selected rate and short preambles are
-	 * available on the network at the current point in time. */
-	if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
-	    (tx->u.tx.rate->flags & IEEE80211_RATE_PREAMBLE2) &&
-	    (tx->sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
-	    (!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) {
-		tx->u.tx.control->tx_rate = tx->u.tx.rate->val2;
-	}
-
-	/* Setup duration field for the first fragment of the frame. Duration
-	 * for remaining fragments will be updated when they are being sent
-	 * to low-level driver in ieee80211_tx(). */
-	dur = ieee80211_duration(tx, is_multicast_ether_addr(hdr->addr1),
-				 (tx->flags & IEEE80211_TXRXD_FRAGMENTED) ?
-				 tx->u.tx.extra_frag[0]->len : 0);
-	hdr->duration_id = cpu_to_le16(dur);
-
-	if ((control->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
-	    (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) {
-		struct ieee80211_rate *rate;
-
-		/* Do not use multiple retry rates when using RTS/CTS */
-		control->alt_retry_rate = -1;
-
-		/* Use min(data rate, max base rate) as CTS/RTS rate */
-		rate = tx->u.tx.rate;
-		while (rate > mode->rates &&
-		       !(rate->flags & IEEE80211_RATE_BASIC))
-			rate--;
-
-		control->rts_cts_rate = rate->val;
-		control->rts_rate = rate;
-	}
 
-	if (tx->sta) {
-		tx->sta->tx_packets++;
-		tx->sta->tx_fragments++;
-		tx->sta->tx_bytes += tx->skb->len;
-		if (tx->u.tx.extra_frag) {
-			int i;
-			tx->sta->tx_fragments += tx->u.tx.num_extra_frag;
-			for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
-				tx->sta->tx_bytes +=
-					tx->u.tx.extra_frag[i]->len;
-			}
-		}
+		hdr = (struct ieee80211_hdr *)tx->extra_frag[i]->data;
+		hdr->duration_id = ieee80211_duration(tx, 0, next_len);
 	}
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
-static ieee80211_txrx_result
-ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx)
+static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_stats(struct ieee80211_tx_data *tx)
 {
-	struct ieee80211_local *local = tx->local;
-	struct ieee80211_hw_mode *mode = tx->u.tx.mode;
-	struct sk_buff *skb = tx->skb;
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	u32 load = 0, hdrtime;
-
-	/* TODO: this could be part of tx_status handling, so that the number
-	 * of retries would be known; TX rate should in that case be stored
-	 * somewhere with the packet */
-
-	/* Estimate total channel use caused by this frame */
-
-	/* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
-	 * 1 usec = 1/8 * (1080 / 10) = 13.5 */
-
-	if (mode->mode == MODE_IEEE80211A ||
-	    (mode->mode == MODE_IEEE80211G &&
-	     tx->u.tx.rate->flags & IEEE80211_RATE_ERP))
-		hdrtime = CHAN_UTIL_HDR_SHORT;
-	else
-		hdrtime = CHAN_UTIL_HDR_LONG;
-
-	load = hdrtime;
-	if (!is_multicast_ether_addr(hdr->addr1))
-		load += hdrtime;
-
-	if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_RTS_CTS)
-		load += 2 * hdrtime;
-	else if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
-		load += hdrtime;
-
-	load += skb->len * tx->u.tx.rate->rate_inv;
+	int i;
 
-	if (tx->u.tx.extra_frag) {
-		int i;
-		for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
-			load += 2 * hdrtime;
-			load += tx->u.tx.extra_frag[i]->len *
-				tx->u.tx.rate->rate;
-		}
+	if (!tx->sta)
+		return TX_CONTINUE;
+
+	tx->sta->tx_packets++;
+	tx->sta->tx_fragments++;
+	tx->sta->tx_bytes += tx->skb->len;
+	if (tx->extra_frag) {
+		tx->sta->tx_fragments += tx->num_extra_frag;
+		for (i = 0; i < tx->num_extra_frag; i++)
+			tx->sta->tx_bytes += tx->extra_frag[i]->len;
 	}
 
-	/* Divide channel_use by 8 to avoid wrapping around the counter */
-	load >>= CHAN_UTIL_SHIFT;
-	local->channel_use_raw += load;
-	if (tx->sta)
-		tx->sta->channel_use_raw += load;
-	tx->sdata->channel_use_raw += load;
-
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
-/* TODO: implement register/unregister functions for adding TX/RX handlers
- * into ordered list */
-
-ieee80211_tx_handler ieee80211_tx_handlers[] =
-{
-	ieee80211_tx_h_check_assoc,
-	ieee80211_tx_h_sequence,
-	ieee80211_tx_h_ps_buf,
-	ieee80211_tx_h_select_key,
-	ieee80211_tx_h_michael_mic_add,
-	ieee80211_tx_h_fragment,
-	ieee80211_tx_h_encrypt,
-	ieee80211_tx_h_rate_ctrl,
-	ieee80211_tx_h_misc,
-	ieee80211_tx_h_load_stats,
-	NULL
-};
 
 /* actual transmit path */
 
@@ -802,8 +832,8 @@ ieee80211_tx_handler ieee80211_tx_handlers[] =
  * deal with packet injection down monitor interface
  * with Radiotap Header -- only called for monitor mode interface
  */
-static ieee80211_txrx_result
-__ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
+static ieee80211_tx_result
+__ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
 			      struct sk_buff *skb)
 {
 	/*
@@ -817,13 +847,15 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
 	struct ieee80211_radiotap_iterator iterator;
 	struct ieee80211_radiotap_header *rthdr =
 		(struct ieee80211_radiotap_header *) skb->data;
-	struct ieee80211_hw_mode *mode = tx->local->hw.conf.mode;
+	struct ieee80211_supported_band *sband;
 	int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len);
-	struct ieee80211_tx_control *control = tx->u.tx.control;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
+	sband = tx->local->hw.wiphy->bands[tx->channel->band];
 
-	control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
-	tx->flags |= IEEE80211_TXRXD_TX_INJECTED;
-	tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
+	skb->do_not_encrypt = 1;
+	info->flags |= IEEE80211_TX_CTL_INJECTED;
+	tx->flags &= ~IEEE80211_TX_FRAGMENTED;
 
 	/*
 	 * for every radiotap entry that is present
@@ -853,11 +885,13 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
 			 * ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps
 			 */
 			target_rate = (*iterator.this_arg) * 5;
-			for (i = 0; i < mode->num_rates; i++) {
-				struct ieee80211_rate *r = &mode->rates[i];
+			for (i = 0; i < sband->n_bitrates; i++) {
+				struct ieee80211_rate *r;
+
+				r = &sband->bitrates[i];
 
-				if (r->rate == target_rate) {
-					tx->u.tx.rate = r;
+				if (r->bitrate == target_rate) {
+					tx->rate_idx = i;
 					break;
 				}
 			}
@@ -868,12 +902,14 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
 			 * radiotap uses 0 for 1st ant, mac80211 is 1 for
 			 * 1st ant
 			 */
-			control->antenna_sel_tx = (*iterator.this_arg) + 1;
+			info->antenna_sel_tx = (*iterator.this_arg) + 1;
 			break;
 
+#if 0
 		case IEEE80211_RADIOTAP_DBM_TX_POWER:
 			control->power_level = *iterator.this_arg;
 			break;
+#endif
 
 		case IEEE80211_RADIOTAP_FLAGS:
 			if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) {
@@ -885,15 +921,14 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
 				 * on transmission
 				 */
 				if (skb->len < (iterator.max_length + FCS_LEN))
-					return TXRX_DROP;
+					return TX_DROP;
 
 				skb_trim(skb, skb->len - FCS_LEN);
 			}
 			if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP)
-				control->flags &=
-					~IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+				tx->skb->do_not_encrypt = 0;
 			if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG)
-				tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+				tx->flags |= IEEE80211_TX_FRAGMENTED;
 			break;
 
 		/*
@@ -908,7 +943,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
 	}
 
 	if (ret != -ENOENT) /* ie, if we didn't simply run out of fields */
-		return TXRX_DROP;
+		return TX_DROP;
 
 	/*
 	 * remove the radiotap header
@@ -917,21 +952,21 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
 	 */
 	skb_pull(skb, iterator.max_length);
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
 /*
  * initialises @tx
  */
-static ieee80211_txrx_result
-__ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
+static ieee80211_tx_result
+__ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 		       struct sk_buff *skb,
-		       struct net_device *dev,
-		       struct ieee80211_tx_control *control)
+		       struct net_device *dev)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct ieee80211_hdr *hdr;
 	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
 	int hdrlen;
 
@@ -940,18 +975,20 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
 	tx->dev = dev; /* use original interface */
 	tx->local = local;
 	tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	tx->u.tx.control = control;
+	tx->channel = local->hw.conf.channel;
+	tx->rate_idx = -1;
+	tx->last_frag_rate_idx = -1;
 	/*
 	 * Set this flag (used below to indicate "automatic fragmentation"),
 	 * it will be cleared/left by radiotap as desired.
 	 */
-	tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+	tx->flags |= IEEE80211_TX_FRAGMENTED;
 
 	/* process and remove the injection radiotap header */
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (unlikely(sdata->vif.type == IEEE80211_IF_TYPE_MNTR)) {
-		if (__ieee80211_parse_tx_radiotap(tx, skb) == TXRX_DROP)
-			return TXRX_DROP;
+		if (__ieee80211_parse_tx_radiotap(tx, skb) == TX_DROP)
+			return TX_DROP;
 
 		/*
 		 * __ieee80211_parse_tx_radiotap has now removed
@@ -966,52 +1003,48 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
 	tx->fc = le16_to_cpu(hdr->frame_control);
 
 	if (is_multicast_ether_addr(hdr->addr1)) {
-		tx->flags &= ~IEEE80211_TXRXD_TXUNICAST;
-		control->flags |= IEEE80211_TXCTL_NO_ACK;
+		tx->flags &= ~IEEE80211_TX_UNICAST;
+		info->flags |= IEEE80211_TX_CTL_NO_ACK;
 	} else {
-		tx->flags |= IEEE80211_TXRXD_TXUNICAST;
-		control->flags &= ~IEEE80211_TXCTL_NO_ACK;
+		tx->flags |= IEEE80211_TX_UNICAST;
+		info->flags &= ~IEEE80211_TX_CTL_NO_ACK;
 	}
 
-	if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
-		if ((tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
+	if (tx->flags & IEEE80211_TX_FRAGMENTED) {
+		if ((tx->flags & IEEE80211_TX_UNICAST) &&
 		    skb->len + FCS_LEN > local->fragmentation_threshold &&
-		    !local->ops->set_frag_threshold)
-			tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+		    !local->ops->set_frag_threshold &&
+		    !(info->flags & IEEE80211_TX_CTL_AMPDU))
+			tx->flags |= IEEE80211_TX_FRAGMENTED;
 		else
-			tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
+			tx->flags &= ~IEEE80211_TX_FRAGMENTED;
 	}
 
 	if (!tx->sta)
-		control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
-	else if (tx->sta->clear_dst_mask) {
-		control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
-		tx->sta->clear_dst_mask = 0;
-	}
+		info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
+	else if (test_and_clear_sta_flags(tx->sta, WLAN_STA_CLEAR_PS_FILT))
+		info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
 
 	hdrlen = ieee80211_get_hdrlen(tx->fc);
 	if (skb->len > hdrlen + sizeof(rfc1042_header) + 2) {
 		u8 *pos = &skb->data[hdrlen + sizeof(rfc1042_header)];
 		tx->ethertype = (pos[0] << 8) | pos[1];
 	}
-	control->flags |= IEEE80211_TXCTL_FIRST_FRAGMENT;
+	info->flags |= IEEE80211_TX_CTL_FIRST_FRAGMENT;
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
 /*
  * NB: @tx is uninitialised when passed in here
  */
-static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
+static int ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 				struct sk_buff *skb,
-				struct net_device *mdev,
-				struct ieee80211_tx_control *control)
+				struct net_device *mdev)
 {
-	struct ieee80211_tx_packet_data *pkt_data;
 	struct net_device *dev;
 
-	pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
-	dev = dev_get_by_index(&init_net, pkt_data->ifindex);
+	dev = dev_get_by_index(&init_net, skb->iif);
 	if (unlikely(dev && !is_ieee80211_device(dev, mdev))) {
 		dev_put(dev);
 		dev = NULL;
@@ -1019,215 +1052,264 @@ static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
 	if (unlikely(!dev))
 		return -ENODEV;
 	/* initialises tx with control */
-	__ieee80211_tx_prepare(tx, skb, dev, control);
+	__ieee80211_tx_prepare(tx, skb, dev);
 	dev_put(dev);
 	return 0;
 }
 
 static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
-			  struct ieee80211_txrx_data *tx)
+			  struct ieee80211_tx_data *tx)
 {
-	struct ieee80211_tx_control *control = tx->u.tx.control;
+	struct ieee80211_tx_info *info;
 	int ret, i;
 
-	if (!ieee80211_qdisc_installed(local->mdev) &&
-	    __ieee80211_queue_stopped(local, 0)) {
-		netif_stop_queue(local->mdev);
-		return IEEE80211_TX_AGAIN;
-	}
 	if (skb) {
+		if (netif_subqueue_stopped(local->mdev, skb))
+			return IEEE80211_TX_AGAIN;
+		info =  IEEE80211_SKB_CB(skb);
+
 		ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
 				     "TX to low-level driver", skb);
-		ret = local->ops->tx(local_to_hw(local), skb, control);
+		ret = local->ops->tx(local_to_hw(local), skb);
 		if (ret)
 			return IEEE80211_TX_AGAIN;
 		local->mdev->trans_start = jiffies;
 		ieee80211_led_tx(local, 1);
 	}
-	if (tx->u.tx.extra_frag) {
-		control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS |
-				    IEEE80211_TXCTL_USE_CTS_PROTECT |
-				    IEEE80211_TXCTL_CLEAR_DST_MASK |
-				    IEEE80211_TXCTL_FIRST_FRAGMENT);
-		for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
-			if (!tx->u.tx.extra_frag[i])
+	if (tx->extra_frag) {
+		for (i = 0; i < tx->num_extra_frag; i++) {
+			if (!tx->extra_frag[i])
 				continue;
-			if (__ieee80211_queue_stopped(local, control->queue))
+			info = IEEE80211_SKB_CB(tx->extra_frag[i]);
+			info->flags &= ~(IEEE80211_TX_CTL_USE_RTS_CTS |
+					 IEEE80211_TX_CTL_USE_CTS_PROTECT |
+					 IEEE80211_TX_CTL_CLEAR_PS_FILT |
+					 IEEE80211_TX_CTL_FIRST_FRAGMENT);
+			if (netif_subqueue_stopped(local->mdev,
+						   tx->extra_frag[i]))
 				return IEEE80211_TX_FRAG_AGAIN;
-			if (i == tx->u.tx.num_extra_frag) {
-				control->tx_rate = tx->u.tx.last_frag_hwrate;
-				control->rate = tx->u.tx.last_frag_rate;
-				if (tx->flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG)
-					control->flags |=
-						IEEE80211_TXCTL_RATE_CTRL_PROBE;
+			if (i == tx->num_extra_frag) {
+				info->tx_rate_idx = tx->last_frag_rate_idx;
+
+				if (tx->flags & IEEE80211_TX_PROBE_LAST_FRAG)
+					info->flags |=
+						IEEE80211_TX_CTL_RATE_CTRL_PROBE;
 				else
-					control->flags &=
-						~IEEE80211_TXCTL_RATE_CTRL_PROBE;
+					info->flags &=
+						~IEEE80211_TX_CTL_RATE_CTRL_PROBE;
 			}
 
 			ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
 					     "TX to low-level driver",
-					     tx->u.tx.extra_frag[i]);
+					     tx->extra_frag[i]);
 			ret = local->ops->tx(local_to_hw(local),
-					    tx->u.tx.extra_frag[i],
-					    control);
+					    tx->extra_frag[i]);
 			if (ret)
 				return IEEE80211_TX_FRAG_AGAIN;
 			local->mdev->trans_start = jiffies;
 			ieee80211_led_tx(local, 1);
-			tx->u.tx.extra_frag[i] = NULL;
+			tx->extra_frag[i] = NULL;
 		}
-		kfree(tx->u.tx.extra_frag);
-		tx->u.tx.extra_frag = NULL;
+		kfree(tx->extra_frag);
+		tx->extra_frag = NULL;
 	}
 	return IEEE80211_TX_OK;
 }
 
-static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
-			struct ieee80211_tx_control *control)
+/*
+ * Invoke TX handlers, return 0 on success and non-zero if the
+ * frame was dropped or queued.
+ */
+static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
+{
+	struct sk_buff *skb = tx->skb;
+	ieee80211_tx_result res = TX_DROP;
+	int i;
+
+#define CALL_TXH(txh)		\
+	res = txh(tx);		\
+	if (res != TX_CONTINUE)	\
+		goto txh_done;
+
+	CALL_TXH(ieee80211_tx_h_check_assoc)
+	CALL_TXH(ieee80211_tx_h_ps_buf)
+	CALL_TXH(ieee80211_tx_h_select_key)
+	CALL_TXH(ieee80211_tx_h_michael_mic_add)
+	CALL_TXH(ieee80211_tx_h_rate_ctrl)
+	CALL_TXH(ieee80211_tx_h_misc)
+	CALL_TXH(ieee80211_tx_h_sequence)
+	CALL_TXH(ieee80211_tx_h_fragment)
+	/* handlers after fragment must be aware of tx info fragmentation! */
+	CALL_TXH(ieee80211_tx_h_encrypt)
+	CALL_TXH(ieee80211_tx_h_calculate_duration)
+	CALL_TXH(ieee80211_tx_h_stats)
+#undef CALL_TXH
+
+ txh_done:
+	if (unlikely(res == TX_DROP)) {
+		I802_DEBUG_INC(tx->local->tx_handlers_drop);
+		dev_kfree_skb(skb);
+		for (i = 0; i < tx->num_extra_frag; i++)
+			if (tx->extra_frag[i])
+				dev_kfree_skb(tx->extra_frag[i]);
+		kfree(tx->extra_frag);
+		return -1;
+	} else if (unlikely(res == TX_QUEUED)) {
+		I802_DEBUG_INC(tx->local->tx_handlers_queued);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct sta_info *sta;
-	ieee80211_tx_handler *handler;
-	struct ieee80211_txrx_data tx;
-	ieee80211_txrx_result res = TXRX_DROP, res_prepare;
+	struct ieee80211_tx_data tx;
+	ieee80211_tx_result res_prepare;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	int ret, i;
+	u16 queue;
 
-	WARN_ON(__ieee80211_queue_pending(local, control->queue));
-
-	if (unlikely(skb->len < 10)) {
-		dev_kfree_skb(skb);
-		return 0;
-	}
+	queue = skb_get_queue_mapping(skb);
 
-	/* initialises tx */
-	res_prepare = __ieee80211_tx_prepare(&tx, skb, dev, control);
+	WARN_ON(test_bit(queue, local->queues_pending));
 
-	if (res_prepare == TXRX_DROP) {
+	if (unlikely(skb->len < 10)) {
 		dev_kfree_skb(skb);
 		return 0;
 	}
 
-	/*
-	 * key references are protected using RCU and this requires that
-	 * we are in a read-site RCU section during receive processing
-	 */
 	rcu_read_lock();
 
-	sta = tx.sta;
-	tx.u.tx.mode = local->hw.conf.mode;
-
-	for (handler = local->tx_handlers; *handler != NULL;
-	     handler++) {
-		res = (*handler)(&tx);
-		if (res != TXRX_CONTINUE)
-			break;
-	}
-
-	skb = tx.skb; /* handlers are allowed to change skb */
-
-	if (sta)
-		sta_info_put(sta);
-
-	if (unlikely(res == TXRX_DROP)) {
-		I802_DEBUG_INC(local->tx_handlers_drop);
-		goto drop;
-	}
+	/* initialises tx */
+	res_prepare = __ieee80211_tx_prepare(&tx, skb, dev);
 
-	if (unlikely(res == TXRX_QUEUED)) {
-		I802_DEBUG_INC(local->tx_handlers_queued);
+	if (res_prepare == TX_DROP) {
+		dev_kfree_skb(skb);
 		rcu_read_unlock();
 		return 0;
 	}
 
-	if (tx.u.tx.extra_frag) {
-		for (i = 0; i < tx.u.tx.num_extra_frag; i++) {
-			int next_len, dur;
-			struct ieee80211_hdr *hdr =
-				(struct ieee80211_hdr *)
-				tx.u.tx.extra_frag[i]->data;
+	sta = tx.sta;
+	tx.channel = local->hw.conf.channel;
+	info->band = tx.channel->band;
 
-			if (i + 1 < tx.u.tx.num_extra_frag) {
-				next_len = tx.u.tx.extra_frag[i + 1]->len;
-			} else {
-				next_len = 0;
-				tx.u.tx.rate = tx.u.tx.last_frag_rate;
-				tx.u.tx.last_frag_hwrate = tx.u.tx.rate->val;
-			}
-			dur = ieee80211_duration(&tx, 0, next_len);
-			hdr->duration_id = cpu_to_le16(dur);
-		}
-	}
+	if (invoke_tx_handlers(&tx))
+		goto out;
 
 retry:
 	ret = __ieee80211_tx(local, skb, &tx);
 	if (ret) {
-		struct ieee80211_tx_stored_packet *store =
-			&local->pending_packet[control->queue];
+		struct ieee80211_tx_stored_packet *store;
+
+		/*
+		 * Since there are no fragmented frames on A-MPDU
+		 * queues, there's no reason for a driver to reject
+		 * a frame there, warn and drop it.
+		 */
+		if (WARN_ON(queue >= ieee80211_num_regular_queues(&local->hw)))
+			goto drop;
+
+		store = &local->pending_packet[queue];
 
 		if (ret == IEEE80211_TX_FRAG_AGAIN)
 			skb = NULL;
-		set_bit(IEEE80211_LINK_STATE_PENDING,
-			&local->state[control->queue]);
+
+		set_bit(queue, local->queues_pending);
 		smp_mb();
-		/* When the driver gets out of buffers during sending of
-		 * fragments and calls ieee80211_stop_queue, there is
-		 * a small window between IEEE80211_LINK_STATE_XOFF and
-		 * IEEE80211_LINK_STATE_PENDING flags are set. If a buffer
+		/*
+		 * When the driver gets out of buffers during sending of
+		 * fragments and calls ieee80211_stop_queue, the netif
+		 * subqueue is stopped. There is, however, a small window
+		 * in which the PENDING bit is not yet set. If a buffer
 		 * gets available in that window (i.e. driver calls
 		 * ieee80211_wake_queue), we would end up with ieee80211_tx
-		 * called with IEEE80211_LINK_STATE_PENDING. Prevent this by
+		 * called with the PENDING bit still set. Prevent this by
 		 * continuing transmitting here when that situation is
-		 * possible to have happened. */
-		if (!__ieee80211_queue_stopped(local, control->queue)) {
-			clear_bit(IEEE80211_LINK_STATE_PENDING,
-				  &local->state[control->queue]);
+		 * possible to have happened.
+		 */
+		if (!__netif_subqueue_stopped(local->mdev, queue)) {
+			clear_bit(queue, local->queues_pending);
 			goto retry;
 		}
-		memcpy(&store->control, control,
-		       sizeof(struct ieee80211_tx_control));
 		store->skb = skb;
-		store->extra_frag = tx.u.tx.extra_frag;
-		store->num_extra_frag = tx.u.tx.num_extra_frag;
-		store->last_frag_hwrate = tx.u.tx.last_frag_hwrate;
-		store->last_frag_rate = tx.u.tx.last_frag_rate;
+		store->extra_frag = tx.extra_frag;
+		store->num_extra_frag = tx.num_extra_frag;
+		store->last_frag_rate_idx = tx.last_frag_rate_idx;
 		store->last_frag_rate_ctrl_probe =
-			!!(tx.flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG);
+			!!(tx.flags & IEEE80211_TX_PROBE_LAST_FRAG);
 	}
+ out:
 	rcu_read_unlock();
 	return 0;
 
  drop:
 	if (skb)
 		dev_kfree_skb(skb);
-	for (i = 0; i < tx.u.tx.num_extra_frag; i++)
-		if (tx.u.tx.extra_frag[i])
-			dev_kfree_skb(tx.u.tx.extra_frag[i]);
-	kfree(tx.u.tx.extra_frag);
+	for (i = 0; i < tx.num_extra_frag; i++)
+		if (tx.extra_frag[i])
+			dev_kfree_skb(tx.extra_frag[i]);
+	kfree(tx.extra_frag);
 	rcu_read_unlock();
 	return 0;
 }
 
 /* device xmit handlers */
 
+static int ieee80211_skb_resize(struct ieee80211_local *local,
+				struct sk_buff *skb,
+				int head_need, bool may_encrypt)
+{
+	int tail_need = 0;
+
+	/*
+	 * This could be optimised, devices that do full hardware
+	 * crypto (including TKIP MMIC) need no tailroom... But we
+	 * have no drivers for such devices currently.
+	 */
+	if (may_encrypt) {
+		tail_need = IEEE80211_ENCRYPT_TAILROOM;
+		tail_need -= skb_tailroom(skb);
+		tail_need = max_t(int, tail_need, 0);
+	}
+
+	if (head_need || tail_need) {
+		/* Sorry. Can't account for this any more */
+		skb_orphan(skb);
+	}
+
+	if (skb_header_cloned(skb))
+		I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
+	else
+		I802_DEBUG_INC(local->tx_expand_skb_head);
+
+	if (pskb_expand_head(skb, head_need, tail_need, GFP_ATOMIC)) {
+		printk(KERN_DEBUG "%s: failed to reallocate TX buffer\n",
+		       wiphy_name(local->hw.wiphy));
+		return -ENOMEM;
+	}
+
+	/* update truesize too */
+	skb->truesize += head_need + tail_need;
+
+	return 0;
+}
+
 int ieee80211_master_start_xmit(struct sk_buff *skb,
 				struct net_device *dev)
 {
-	struct ieee80211_tx_control control;
-	struct ieee80211_tx_packet_data *pkt_data;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 	struct net_device *odev = NULL;
 	struct ieee80211_sub_if_data *osdata;
 	int headroom;
+	bool may_encrypt;
 	int ret;
 
-	/*
-	 * copy control out of the skb so other people can use skb->cb
-	 */
-	pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
-	memset(&control, 0, sizeof(struct ieee80211_tx_control));
-
-	if (pkt_data->ifindex)
-		odev = dev_get_by_index(&init_net, pkt_data->ifindex);
+	if (skb->iif)
+		odev = dev_get_by_index(&init_net, skb->iif);
 	if (unlikely(odev && !is_ieee80211_device(odev, dev))) {
 		dev_put(odev);
 		odev = NULL;
@@ -1240,30 +1322,43 @@ int ieee80211_master_start_xmit(struct sk_buff *skb,
 		dev_kfree_skb(skb);
 		return 0;
 	}
+
+	memset(info, 0, sizeof(*info));
+
+	info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
+
 	osdata = IEEE80211_DEV_TO_SUB_IF(odev);
 
-	headroom = osdata->local->tx_headroom + IEEE80211_ENCRYPT_HEADROOM;
-	if (skb_headroom(skb) < headroom) {
-		if (pskb_expand_head(skb, headroom, 0, GFP_ATOMIC)) {
-			dev_kfree_skb(skb);
-			dev_put(odev);
-			return 0;
+	if (ieee80211_vif_is_mesh(&osdata->vif) &&
+	    ieee80211_is_data(hdr->frame_control)) {
+		if (ieee80211_is_data(hdr->frame_control)) {
+			if (is_multicast_ether_addr(hdr->addr3))
+				memcpy(hdr->addr1, hdr->addr3, ETH_ALEN);
+			else
+				if (mesh_nexthop_lookup(skb, odev))
+					return  0;
+			if (memcmp(odev->dev_addr, hdr->addr4, ETH_ALEN) != 0)
+				IEEE80211_IFSTA_MESH_CTR_INC(&osdata->u.sta,
+							     fwded_frames);
 		}
 	}
 
-	control.vif = &osdata->vif;
-	control.type = osdata->vif.type;
-	if (pkt_data->flags & IEEE80211_TXPD_REQ_TX_STATUS)
-		control.flags |= IEEE80211_TXCTL_REQ_TX_STATUS;
-	if (pkt_data->flags & IEEE80211_TXPD_DO_NOT_ENCRYPT)
-		control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
-	if (pkt_data->flags & IEEE80211_TXPD_REQUEUE)
-		control.flags |= IEEE80211_TXCTL_REQUEUE;
-	if (pkt_data->flags & IEEE80211_TXPD_EAPOL_FRAME)
-		control.flags |= IEEE80211_TXCTL_EAPOL_FRAME;
-	control.queue = pkt_data->queue;
-
-	ret = ieee80211_tx(odev, skb, &control);
+	may_encrypt = !skb->do_not_encrypt;
+
+	headroom = osdata->local->tx_headroom;
+	if (may_encrypt)
+		headroom += IEEE80211_ENCRYPT_HEADROOM;
+	headroom -= skb_headroom(skb);
+	headroom = max_t(int, 0, headroom);
+
+	if (ieee80211_skb_resize(osdata->local, skb, headroom, may_encrypt)) {
+		dev_kfree_skb(skb);
+		dev_put(odev);
+		return 0;
+	}
+
+	info->control.vif = &osdata->vif;
+	ret = ieee80211_tx(odev, skb);
 	dev_put(odev);
 
 	return ret;
@@ -1273,7 +1368,6 @@ int ieee80211_monitor_start_xmit(struct sk_buff *skb,
 				 struct net_device *dev)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_tx_packet_data *pkt_data;
 	struct ieee80211_radiotap_header *prthdr =
 		(struct ieee80211_radiotap_header *)skb->data;
 	u16 len_rthdr;
@@ -1295,12 +1389,12 @@ int ieee80211_monitor_start_xmit(struct sk_buff *skb,
 
 	skb->dev = local->mdev;
 
-	pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
-	memset(pkt_data, 0, sizeof(*pkt_data));
 	/* needed because we set skb device to master */
-	pkt_data->ifindex = dev->ifindex;
+	skb->iif = dev->ifindex;
 
-	pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
+	/* sometimes we do encrypt injected frames, will be fixed
+	 * up in radiotap parser if not wanted */
+	skb->do_not_encrypt = 0;
 
 	/*
 	 * fix up the pointers accounting for the radiotap
@@ -1344,11 +1438,12 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 			       struct net_device *dev)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_tx_packet_data *pkt_data;
 	struct ieee80211_sub_if_data *sdata;
 	int ret = 1, head_need;
-	u16 ethertype, hdrlen, fc;
+	u16 ethertype, hdrlen,  meshhdrlen = 0;
+	__le16 fc;
 	struct ieee80211_hdr hdr;
+	struct ieee80211s_hdr mesh_hdr;
 	const u8 *encaps_data;
 	int encaps_len, skip_header_bytes;
 	int nh_pos, h_pos;
@@ -1357,8 +1452,6 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (unlikely(skb->len < ETH_HLEN)) {
-		printk(KERN_DEBUG "%s: short skb (len=%d)\n",
-		       dev->name, skb->len);
 		ret = 0;
 		goto fail;
 	}
@@ -1369,12 +1462,12 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 	/* convert Ethernet header to proper 802.11 header (based on
 	 * operation mode) */
 	ethertype = (skb->data[12] << 8) | skb->data[13];
-	fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA;
+	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
 
 	switch (sdata->vif.type) {
 	case IEEE80211_IF_TYPE_AP:
 	case IEEE80211_IF_TYPE_VLAN:
-		fc |= IEEE80211_FCTL_FROMDS;
+		fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
 		/* DA BSSID SA */
 		memcpy(hdr.addr1, skb->data, ETH_ALEN);
 		memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
@@ -1382,7 +1475,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 		hdrlen = 24;
 		break;
 	case IEEE80211_IF_TYPE_WDS:
-		fc |= IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS;
+		fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
 		/* RA TA DA SA */
 		memcpy(hdr.addr1, sdata->u.wds.remote_addr, ETH_ALEN);
 		memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
@@ -1390,8 +1483,26 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 		memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
 		hdrlen = 30;
 		break;
+#ifdef CONFIG_MAC80211_MESH
+	case IEEE80211_IF_TYPE_MESH_POINT:
+		fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
+		/* RA TA DA SA */
+		memset(hdr.addr1, 0, ETH_ALEN);
+		memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
+		memcpy(hdr.addr3, skb->data, ETH_ALEN);
+		memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
+		if (!sdata->u.sta.mshcfg.dot11MeshTTL) {
+			/* Do not send frames with mesh_ttl == 0 */
+			sdata->u.sta.mshstats.dropped_frames_ttl++;
+			ret = 0;
+			goto fail;
+		}
+		meshhdrlen = ieee80211_new_mesh_header(&mesh_hdr, sdata);
+		hdrlen = 30;
+		break;
+#endif
 	case IEEE80211_IF_TYPE_STA:
-		fc |= IEEE80211_FCTL_TODS;
+		fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
 		/* BSSID SA DA */
 		memcpy(hdr.addr1, sdata->u.sta.bssid, ETH_ALEN);
 		memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
@@ -1410,25 +1521,34 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 		goto fail;
 	}
 
-	sta = sta_info_get(local, hdr.addr1);
-	if (sta) {
-		sta_flags = sta->flags;
-		sta_info_put(sta);
+	/*
+	 * There's no need to try to look up the destination
+	 * if it is a multicast address (which can only happen
+	 * in AP mode)
+	 */
+	if (!is_multicast_ether_addr(hdr.addr1)) {
+		rcu_read_lock();
+		sta = sta_info_get(local, hdr.addr1);
+		if (sta)
+			sta_flags = get_sta_flags(sta);
+		rcu_read_unlock();
 	}
 
-	/* receiver is QoS enabled, use a QoS type frame */
-	if (sta_flags & WLAN_STA_WME) {
-		fc |= IEEE80211_STYPE_QOS_DATA;
+	/* receiver and we are QoS enabled, use a QoS type frame */
+	if (sta_flags & WLAN_STA_WME &&
+	    ieee80211_num_regular_queues(&local->hw) >= 4) {
+		fc |= cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
 		hdrlen += 2;
 	}
 
 	/*
-	 * If port access control is enabled, drop frames to unauthorised
-	 * stations unless they are EAPOL frames from the local station.
+	 * Drop unicast frames to unauthorised stations unless they are
+	 * EAPOL frames from the local station.
 	 */
-	if (unlikely(sdata->ieee802_1x_pac &&
-		     !(sta_flags & WLAN_STA_AUTHORIZED) &&
-		     !(ethertype == ETH_P_PAE &&
+	if (!ieee80211_vif_is_mesh(&sdata->vif) &&
+		unlikely(!is_multicast_ether_addr(hdr.addr1) &&
+		      !(sta_flags & WLAN_STA_AUTHORIZED) &&
+		      !(ethertype == ETH_P_PAE &&
 		       compare_ether_addr(dev->dev_addr,
 					  skb->data + ETH_ALEN) == 0))) {
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
@@ -1446,7 +1566,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 		goto fail;
 	}
 
-	hdr.frame_control = cpu_to_le16(fc);
+	hdr.frame_control = fc;
 	hdr.duration_id = 0;
 	hdr.seq_ctrl = 0;
 
@@ -1481,32 +1601,26 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 	 * build in headroom in __dev_alloc_skb() (linux/skbuff.h) and
 	 * alloc_skb() (net/core/skbuff.c)
 	 */
-	head_need = hdrlen + encaps_len + local->tx_headroom;
-	head_need -= skb_headroom(skb);
+	head_need = hdrlen + encaps_len + meshhdrlen - skb_headroom(skb);
 
-	/* We are going to modify skb data, so make a copy of it if happens to
-	 * be cloned. This could happen, e.g., with Linux bridge code passing
-	 * us broadcast frames. */
+	/*
+	 * So we need to modify the skb header and hence need a copy of
+	 * that. The head_need variable above doesn't, so far, include
+	 * the needed header space that we don't need right away. If we
+	 * can, then we don't reallocate right now but only after the
+	 * frame arrives at the master device (if it does...)
+	 *
+	 * If we cannot, however, then we will reallocate to include all
+	 * the ever needed space. Also, if we need to reallocate it anyway,
+	 * make it big enough for everything we may ever need.
+	 */
 
 	if (head_need > 0 || skb_cloned(skb)) {
-#if 0
-		printk(KERN_DEBUG "%s: need to reallocate buffer for %d bytes "
-		       "of headroom\n", dev->name, head_need);
-#endif
-
-		if (skb_cloned(skb))
-			I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
-		else
-			I802_DEBUG_INC(local->tx_expand_skb_head);
-		/* Since we have to reallocate the buffer, make sure that there
-		 * is enough room for possible WEP IV/ICV and TKIP (8 bytes
-		 * before payload and 12 after). */
-		if (pskb_expand_head(skb, (head_need > 0 ? head_need + 8 : 8),
-				     12, GFP_ATOMIC)) {
-			printk(KERN_DEBUG "%s: failed to reallocate TX buffer"
-			       "\n", dev->name);
+		head_need += IEEE80211_ENCRYPT_HEADROOM;
+		head_need += local->tx_headroom;
+		head_need = max_t(int, 0, head_need);
+		if (ieee80211_skb_resize(local, skb, head_need, true))
 			goto fail;
-		}
 	}
 
 	if (encaps_data) {
@@ -1515,7 +1629,13 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 		h_pos += encaps_len;
 	}
 
-	if (fc & IEEE80211_STYPE_QOS_DATA) {
+	if (meshhdrlen > 0) {
+		memcpy(skb_push(skb, meshhdrlen), &mesh_hdr, meshhdrlen);
+		nh_pos += meshhdrlen;
+		h_pos += meshhdrlen;
+	}
+
+	if (ieee80211_is_data_qos(fc)) {
 		__le16 *qos_control;
 
 		qos_control = (__le16*) skb_push(skb, 2);
@@ -1531,11 +1651,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 	nh_pos += hdrlen;
 	h_pos += hdrlen;
 
-	pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
-	memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
-	pkt_data->ifindex = dev->ifindex;
-	if (ethertype == ETH_P_PAE)
-		pkt_data->flags |= IEEE80211_TXPD_EAPOL_FRAME;
+	skb->iif = dev->ifindex;
 
 	skb->dev = local->mdev;
 	dev->stats.tx_packets++;
@@ -1560,75 +1676,81 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 	return ret;
 }
 
-/* helper functions for pending packets for when queues are stopped */
 
+/*
+ * ieee80211_clear_tx_pending may not be called in a context where
+ * it is possible that it packets could come in again.
+ */
 void ieee80211_clear_tx_pending(struct ieee80211_local *local)
 {
 	int i, j;
 	struct ieee80211_tx_stored_packet *store;
 
-	for (i = 0; i < local->hw.queues; i++) {
-		if (!__ieee80211_queue_pending(local, i))
+	for (i = 0; i < ieee80211_num_regular_queues(&local->hw); i++) {
+		if (!test_bit(i, local->queues_pending))
 			continue;
 		store = &local->pending_packet[i];
 		kfree_skb(store->skb);
 		for (j = 0; j < store->num_extra_frag; j++)
 			kfree_skb(store->extra_frag[j]);
 		kfree(store->extra_frag);
-		clear_bit(IEEE80211_LINK_STATE_PENDING, &local->state[i]);
+		clear_bit(i, local->queues_pending);
 	}
 }
 
+/*
+ * Transmit all pending packets. Called from tasklet, locks master device
+ * TX lock so that no new packets can come in.
+ */
 void ieee80211_tx_pending(unsigned long data)
 {
 	struct ieee80211_local *local = (struct ieee80211_local *)data;
 	struct net_device *dev = local->mdev;
 	struct ieee80211_tx_stored_packet *store;
-	struct ieee80211_txrx_data tx;
-	int i, ret, reschedule = 0;
+	struct ieee80211_tx_data tx;
+	int i, ret;
 
 	netif_tx_lock_bh(dev);
-	for (i = 0; i < local->hw.queues; i++) {
-		if (__ieee80211_queue_stopped(local, i))
+	for (i = 0; i < ieee80211_num_regular_queues(&local->hw); i++) {
+		/* Check that this queue is ok */
+		if (__netif_subqueue_stopped(local->mdev, i) &&
+		    !test_bit(i, local->queues_pending_run))
 			continue;
-		if (!__ieee80211_queue_pending(local, i)) {
-			reschedule = 1;
+
+		if (!test_bit(i, local->queues_pending)) {
+			clear_bit(i, local->queues_pending_run);
+			ieee80211_wake_queue(&local->hw, i);
 			continue;
 		}
+
+		clear_bit(i, local->queues_pending_run);
+		netif_start_subqueue(local->mdev, i);
+
 		store = &local->pending_packet[i];
-		tx.u.tx.control = &store->control;
-		tx.u.tx.extra_frag = store->extra_frag;
-		tx.u.tx.num_extra_frag = store->num_extra_frag;
-		tx.u.tx.last_frag_hwrate = store->last_frag_hwrate;
-		tx.u.tx.last_frag_rate = store->last_frag_rate;
+		tx.extra_frag = store->extra_frag;
+		tx.num_extra_frag = store->num_extra_frag;
+		tx.last_frag_rate_idx = store->last_frag_rate_idx;
 		tx.flags = 0;
 		if (store->last_frag_rate_ctrl_probe)
-			tx.flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
+			tx.flags |= IEEE80211_TX_PROBE_LAST_FRAG;
 		ret = __ieee80211_tx(local, store->skb, &tx);
 		if (ret) {
 			if (ret == IEEE80211_TX_FRAG_AGAIN)
 				store->skb = NULL;
 		} else {
-			clear_bit(IEEE80211_LINK_STATE_PENDING,
-				  &local->state[i]);
-			reschedule = 1;
+			clear_bit(i, local->queues_pending);
+			ieee80211_wake_queue(&local->hw, i);
 		}
 	}
 	netif_tx_unlock_bh(dev);
-	if (reschedule) {
-		if (!ieee80211_qdisc_installed(dev)) {
-			if (!__ieee80211_queue_stopped(local, 0))
-				netif_wake_queue(dev);
-		} else
-			netif_schedule(dev);
-	}
 }
 
 /* functions for drivers to get certain frames */
 
 static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
 				     struct ieee80211_if_ap *bss,
-				     struct sk_buff *skb)
+				     struct sk_buff *skb,
+				     struct beacon_data *beacon)
 {
 	u8 *pos, *tim;
 	int aid0 = 0;
@@ -1636,7 +1758,6 @@ static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
 
 	/* Generate bitmap for TIM only if there are any STAs in power save
 	 * mode. */
-	read_lock_bh(&local->sta_lock);
 	if (atomic_read(&bss->num_sta_ps) > 0)
 		/* in the hope that this is faster than
 		 * checking byte-for-byte */
@@ -1644,7 +1765,7 @@ static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
 					  IEEE80211_MAX_AID+1);
 
 	if (bss->dtim_count == 0)
-		bss->dtim_count = bss->dtim_period - 1;
+		bss->dtim_count = beacon->dtim_period - 1;
 	else
 		bss->dtim_count--;
 
@@ -1652,7 +1773,7 @@ static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
 	*pos++ = WLAN_EID_TIM;
 	*pos++ = 4;
 	*pos++ = bss->dtim_count;
-	*pos++ = bss->dtim_period;
+	*pos++ = beacon->dtim_period;
 
 	if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf))
 		aid0 = 1;
@@ -1687,97 +1808,169 @@ static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
 		*pos++ = aid0; /* Bitmap control */
 		*pos++ = 0; /* Part Virt Bitmap */
 	}
-	read_unlock_bh(&local->sta_lock);
 }
 
 struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
-				     struct ieee80211_vif *vif,
-				     struct ieee80211_tx_control *control)
+				     struct ieee80211_vif *vif)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
-	struct sk_buff *skb;
+	struct sk_buff *skb = NULL;
+	struct ieee80211_tx_info *info;
 	struct net_device *bdev;
 	struct ieee80211_sub_if_data *sdata = NULL;
 	struct ieee80211_if_ap *ap = NULL;
+	struct ieee80211_if_sta *ifsta = NULL;
 	struct rate_selection rsel;
-	u8 *b_head, *b_tail;
-	int bh_len, bt_len;
+	struct beacon_data *beacon;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_mgmt *mgmt;
+	int *num_beacons;
+	enum ieee80211_band band = local->hw.conf.channel->band;
+	u8 *pos;
+
+	sband = local->hw.wiphy->bands[band];
+
+	rcu_read_lock();
 
 	sdata = vif_to_sdata(vif);
 	bdev = sdata->dev;
-	ap = &sdata->u.ap;
 
-	if (!ap || sdata->vif.type != IEEE80211_IF_TYPE_AP ||
-	    !ap->beacon_head) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-		if (net_ratelimit())
-			printk(KERN_DEBUG "no beacon data avail for %s\n",
-			       bdev->name);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-		return NULL;
-	}
+	if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
+		ap = &sdata->u.ap;
+		beacon = rcu_dereference(ap->beacon);
+		if (ap && beacon) {
+			/*
+			 * headroom, head length,
+			 * tail length and maximum TIM length
+			 */
+			skb = dev_alloc_skb(local->tx_headroom +
+					    beacon->head_len +
+					    beacon->tail_len + 256);
+			if (!skb)
+				goto out;
 
-	/* Assume we are generating the normal beacon locally */
-	b_head = ap->beacon_head;
-	b_tail = ap->beacon_tail;
-	bh_len = ap->beacon_head_len;
-	bt_len = ap->beacon_tail_len;
+			skb_reserve(skb, local->tx_headroom);
+			memcpy(skb_put(skb, beacon->head_len), beacon->head,
+			       beacon->head_len);
 
-	skb = dev_alloc_skb(local->tx_headroom +
-		bh_len + bt_len + 256 /* maximum TIM len */);
-	if (!skb)
-		return NULL;
+			/*
+			 * Not very nice, but we want to allow the driver to call
+			 * ieee80211_beacon_get() as a response to the set_tim()
+			 * callback. That, however, is already invoked under the
+			 * sta_lock to guarantee consistent and race-free update
+			 * of the tim bitmap in mac80211 and the driver.
+			 */
+			if (local->tim_in_locked_section) {
+				ieee80211_beacon_add_tim(local, ap, skb, beacon);
+			} else {
+				unsigned long flags;
+
+				spin_lock_irqsave(&local->sta_lock, flags);
+				ieee80211_beacon_add_tim(local, ap, skb, beacon);
+				spin_unlock_irqrestore(&local->sta_lock, flags);
+			}
+
+			if (beacon->tail)
+				memcpy(skb_put(skb, beacon->tail_len),
+				       beacon->tail, beacon->tail_len);
 
-	skb_reserve(skb, local->tx_headroom);
-	memcpy(skb_put(skb, bh_len), b_head, bh_len);
+			num_beacons = &ap->num_beacons;
+		} else
+			goto out;
+	} else if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
+		struct ieee80211_hdr *hdr;
+		ifsta = &sdata->u.sta;
+
+		if (!ifsta->probe_resp)
+			goto out;
 
-	ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data);
+		skb = skb_copy(ifsta->probe_resp, GFP_ATOMIC);
+		if (!skb)
+			goto out;
 
-	ieee80211_beacon_add_tim(local, ap, skb);
+		hdr = (struct ieee80211_hdr *) skb->data;
+		hdr->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+						  IEEE80211_STYPE_BEACON);
 
-	if (b_tail) {
-		memcpy(skb_put(skb, bt_len), b_tail, bt_len);
+		num_beacons = &ifsta->num_beacons;
+	} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
+		/* headroom, head length, tail length and maximum TIM length */
+		skb = dev_alloc_skb(local->tx_headroom + 400);
+		if (!skb)
+			goto out;
+
+		skb_reserve(skb, local->hw.extra_tx_headroom);
+		mgmt = (struct ieee80211_mgmt *)
+			skb_put(skb, 24 + sizeof(mgmt->u.beacon));
+		memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
+		mgmt->frame_control =
+		    cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
+		memset(mgmt->da, 0xff, ETH_ALEN);
+		memcpy(mgmt->sa, sdata->dev->dev_addr, ETH_ALEN);
+		/* BSSID is left zeroed, wildcard value */
+		mgmt->u.beacon.beacon_int =
+			cpu_to_le16(local->hw.conf.beacon_int);
+		mgmt->u.beacon.capab_info = 0x0; /* 0x0 for MPs */
+
+		pos = skb_put(skb, 2);
+		*pos++ = WLAN_EID_SSID;
+		*pos++ = 0x0;
+
+		mesh_mgmt_ies_add(skb, sdata->dev);
+
+		num_beacons = &sdata->u.sta.num_beacons;
+	} else {
+		WARN_ON(1);
+		goto out;
 	}
 
-	if (control) {
-		rate_control_get_rate(local->mdev, local->oper_hw_mode, skb,
-				      &rsel);
-		if (!rsel.rate) {
-			if (net_ratelimit()) {
-				printk(KERN_DEBUG "%s: ieee80211_beacon_get: "
-				       "no rate found\n",
-				       wiphy_name(local->hw.wiphy));
-			}
-			dev_kfree_skb(skb);
-			return NULL;
-		}
+	info = IEEE80211_SKB_CB(skb);
+
+	skb->do_not_encrypt = 1;
+
+	info->band = band;
+	rate_control_get_rate(local->mdev, sband, skb, &rsel);
 
-		control->tx_rate =
-			((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
-			(rsel.rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
-			rsel.rate->val2 : rsel.rate->val;
-		control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
-		control->power_level = local->hw.conf.power_level;
-		control->flags |= IEEE80211_TXCTL_NO_ACK;
-		control->retry_limit = 1;
-		control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
+	if (unlikely(rsel.rate_idx < 0)) {
+		if (net_ratelimit()) {
+			printk(KERN_DEBUG "%s: ieee80211_beacon_get: "
+			       "no rate found\n",
+			       wiphy_name(local->hw.wiphy));
+		}
+		dev_kfree_skb_any(skb);
+		skb = NULL;
+		goto out;
 	}
 
-	ap->num_beacons++;
+	info->control.vif = vif;
+	info->tx_rate_idx = rsel.rate_idx;
+
+	info->flags |= IEEE80211_TX_CTL_NO_ACK;
+	info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
+	info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
+	if (sdata->bss_conf.use_short_preamble &&
+	    sband->bitrates[rsel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE)
+		info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE;
+
+	info->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
+	info->control.retry_limit = 1;
+
+	(*num_beacons)++;
+out:
+	rcu_read_unlock();
 	return skb;
 }
 EXPORT_SYMBOL(ieee80211_beacon_get);
 
 void ieee80211_rts_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		       const void *frame, size_t frame_len,
-		       const struct ieee80211_tx_control *frame_txctl,
+		       const struct ieee80211_tx_info *frame_txctl,
 		       struct ieee80211_rts *rts)
 {
 	const struct ieee80211_hdr *hdr = frame;
-	u16 fctl;
 
-	fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS;
-	rts->frame_control = cpu_to_le16(fctl);
+	rts->frame_control =
+	    cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 	rts->duration = ieee80211_rts_duration(hw, vif, frame_len,
 					       frame_txctl);
 	memcpy(rts->ra, hdr->addr1, sizeof(rts->ra));
@@ -1787,14 +1980,13 @@ EXPORT_SYMBOL(ieee80211_rts_get);
 
 void ieee80211_ctstoself_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 			     const void *frame, size_t frame_len,
-			     const struct ieee80211_tx_control *frame_txctl,
+			     const struct ieee80211_tx_info *frame_txctl,
 			     struct ieee80211_cts *cts)
 {
 	const struct ieee80211_hdr *hdr = frame;
-	u16 fctl;
 
-	fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS;
-	cts->frame_control = cpu_to_le16(fctl);
+	cts->frame_control =
+	    cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS);
 	cts->duration = ieee80211_ctstoself_duration(hw, vif,
 						     frame_len, frame_txctl);
 	memcpy(cts->ra, hdr->addr1, sizeof(cts->ra));
@@ -1803,33 +1995,38 @@ EXPORT_SYMBOL(ieee80211_ctstoself_get);
 
 struct sk_buff *
 ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
-			  struct ieee80211_vif *vif,
-			  struct ieee80211_tx_control *control)
+			  struct ieee80211_vif *vif)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
-	struct sk_buff *skb;
+	struct sk_buff *skb = NULL;
 	struct sta_info *sta;
-	ieee80211_tx_handler *handler;
-	struct ieee80211_txrx_data tx;
-	ieee80211_txrx_result res = TXRX_DROP;
+	struct ieee80211_tx_data tx;
 	struct net_device *bdev;
 	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_if_ap *bss = NULL;
+	struct beacon_data *beacon;
+	struct ieee80211_tx_info *info;
 
 	sdata = vif_to_sdata(vif);
 	bdev = sdata->dev;
+	bss = &sdata->u.ap;
 
-	if (!bss || sdata->vif.type != IEEE80211_IF_TYPE_AP ||
-	    !bss->beacon_head)
+	if (!bss)
 		return NULL;
 
+	rcu_read_lock();
+	beacon = rcu_dereference(bss->beacon);
+
+	if (sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon || !beacon->head)
+		goto out;
+
 	if (bss->dtim_count != 0)
-		return NULL; /* send buffered bc/mc only after DTIM beacon */
-	memset(control, 0, sizeof(*control));
+		goto out; /* send buffered bc/mc only after DTIM beacon */
+
 	while (1) {
 		skb = skb_dequeue(&bss->ps_bc_buf);
 		if (!skb)
-			return NULL;
+			goto out;
 		local->total_ps_buffered--;
 
 		if (!skb_queue_empty(&bss->ps_bc_buf) && skb->len >= 2) {
@@ -1842,32 +2039,22 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
 				cpu_to_le16(IEEE80211_FCTL_MOREDATA);
 		}
 
-		if (!ieee80211_tx_prepare(&tx, skb, local->mdev, control))
+		if (!ieee80211_tx_prepare(&tx, skb, local->mdev))
 			break;
 		dev_kfree_skb_any(skb);
 	}
-	sta = tx.sta;
-	tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED;
-	tx.u.tx.mode = local->hw.conf.mode;
 
-	for (handler = local->tx_handlers; *handler != NULL; handler++) {
-		res = (*handler)(&tx);
-		if (res == TXRX_DROP || res == TXRX_QUEUED)
-			break;
-	}
-	skb = tx.skb; /* handlers are allowed to change skb */
+	info = IEEE80211_SKB_CB(skb);
 
-	if (res == TXRX_DROP) {
-		I802_DEBUG_INC(local->tx_handlers_drop);
-		dev_kfree_skb(skb);
-		skb = NULL;
-	} else if (res == TXRX_QUEUED) {
-		I802_DEBUG_INC(local->tx_handlers_queued);
-		skb = NULL;
-	}
+	sta = tx.sta;
+	tx.flags |= IEEE80211_TX_PS_BUFFERED;
+	tx.channel = local->hw.conf.channel;
+	info->band = tx.channel->band;
 
-	if (sta)
-		sta_info_put(sta);
+	if (invoke_tx_handlers(&tx))
+		skb = NULL;
+ out:
+	rcu_read_unlock();
 
 	return skb;
 }