Merge branch 'merge-fixes' into devel

43 files changed, 8764 insertions, 3345 deletions

diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index 45c7c0c3875e..520a5180a4f6 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -32,15 +32,6 @@ config MAC80211_RC_DEFAULT_PID
 	  default rate control algorithm. You should choose
 	  this unless you know what you are doing.
 
-config MAC80211_RC_DEFAULT_SIMPLE
-	bool "Simple rate control algorithm"
-	select MAC80211_RC_SIMPLE
-	---help---
-	  Select the simple rate control as the default rate
-	  control algorithm. Note that this is a non-responsive,
-	  dumb algorithm. You should choose the PID rate control
-	  instead.
-
 config MAC80211_RC_DEFAULT_NONE
 	bool "No default algorithm"
 	depends on EMBEDDED
@@ -57,7 +48,6 @@ comment "build the algorithm into mac80211."
 config MAC80211_RC_DEFAULT
 	string
 	default "pid" if MAC80211_RC_DEFAULT_PID
-	default "simple" if MAC80211_RC_DEFAULT_SIMPLE
 	default ""
 
 config MAC80211_RC_PID
@@ -70,16 +60,16 @@ config MAC80211_RC_PID
 	  Say Y or M unless you're sure you want to use a
 	  different rate control algorithm.
 
-config MAC80211_RC_SIMPLE
-	tristate "Simple rate control algorithm (DEPRECATED)"
+endmenu
+
+config MAC80211_MESH
+	bool "Enable mac80211 mesh networking (pre-802.11s) support"
+	depends on MAC80211 && EXPERIMENTAL
 	---help---
-	  This option enables a very simple, non-responsive TX
-	  rate control algorithm. This algorithm is deprecated
-	  and will be removed from the kernel in the near future.
-	  It has been replaced by the PID algorithm.
+	 This options enables support of Draft 802.11s mesh networking.
+	 The implementation is based on Draft 1.08 of the Mesh Networking
+	 amendment. For more information visit http://o11s.org/.
 
-	  Say N unless you know what you are doing.
-endmenu
 
 config MAC80211_LEDS
 	bool "Enable LED triggers"
@@ -166,3 +156,10 @@ config MAC80211_VERBOSE_PS_DEBUG
 	---help---
 	  Say Y here to print out verbose powersave
 	  mode debug messages.
+
+config MAC80211_VERBOSE_MPL_DEBUG
+	bool "Verbose mesh peer link debugging"
+	depends on MAC80211_DEBUG && MAC80211_MESH
+	---help---
+	  Say Y here to print out verbose mesh peer link
+	  debug messages.
diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile
index 54f46bc80cfe..4e5847fd316c 100644
--- a/net/mac80211/Makefile
+++ b/net/mac80211/Makefile
@@ -10,16 +10,15 @@ rc-pid-m := rc80211_pid.o
 
 # mac80211 objects
 mac80211-y := \
-	ieee80211.o \
-	ieee80211_ioctl.o \
+	main.o \
+	wext.o \
 	sta_info.o \
 	wep.o \
 	wpa.o \
-	ieee80211_sta.o \
-	ieee80211_iface.o \
-	ieee80211_rate.o \
+	mlme.o \
+	iface.o \
+	rate.o \
 	michael.o \
-	regdomain.o \
 	tkip.o \
 	aes_ccm.o \
 	cfg.o \
@@ -29,7 +28,7 @@ mac80211-y := \
 	util.o \
 	event.o
 
-mac80211-$(CONFIG_MAC80211_LEDS) += ieee80211_led.o
+mac80211-$(CONFIG_MAC80211_LEDS) += led.o
 mac80211-$(CONFIG_NET_SCHED) += wme.o
 mac80211-$(CONFIG_MAC80211_DEBUGFS) += \
 	debugfs.o \
@@ -37,11 +36,15 @@ mac80211-$(CONFIG_MAC80211_DEBUGFS) += \
 	debugfs_netdev.o \
 	debugfs_key.o
 
+mac80211-$(CONFIG_MAC80211_MESH) += \
+	mesh.o \
+	mesh_pathtbl.o \
+	mesh_plink.o \
+	mesh_hwmp.o
+
 
 # Build rate control algorithm(s)
-CFLAGS_rc80211_simple.o += -DRC80211_SIMPLE_COMPILE
 CFLAGS_rc80211_pid_algo.o += -DRC80211_PID_COMPILE
-mac80211-$(CONFIG_MAC80211_RC_SIMPLE) += rc80211_simple.o
 mac80211-$(CONFIG_MAC80211_RC_PID) += $(rc-pid-$(CONFIG_MAC80211_RC_PID))
 
 # Modular rate algorithms are assigned to mac80211-m - make separate modules
diff --git a/net/mac80211/aes_ccm.c b/net/mac80211/aes_ccm.c
index e62fe55944b8..59f1691f62c8 100644
--- a/net/mac80211/aes_ccm.c
+++ b/net/mac80211/aes_ccm.c
@@ -13,7 +13,7 @@
 #include <linux/err.h>
 
 #include <net/mac80211.h>
-#include "ieee80211_key.h"
+#include "key.h"
 #include "aes_ccm.h"
 
 
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 22c9619ba776..699d97b8de5e 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -14,7 +14,8 @@
 #include <net/cfg80211.h>
 #include "ieee80211_i.h"
 #include "cfg.h"
-#include "ieee80211_rate.h"
+#include "rate.h"
+#include "mesh.h"
 
 static enum ieee80211_if_types
 nl80211_type_to_mac80211_type(enum nl80211_iftype type)
@@ -28,16 +29,26 @@ nl80211_type_to_mac80211_type(enum nl80211_iftype type)
 		return IEEE80211_IF_TYPE_STA;
 	case NL80211_IFTYPE_MONITOR:
 		return IEEE80211_IF_TYPE_MNTR;
+#ifdef CONFIG_MAC80211_MESH
+	case NL80211_IFTYPE_MESH_POINT:
+		return IEEE80211_IF_TYPE_MESH_POINT;
+#endif
+	case NL80211_IFTYPE_WDS:
+		return IEEE80211_IF_TYPE_WDS;
 	default:
 		return IEEE80211_IF_TYPE_INVALID;
 	}
 }
 
 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
-			       enum nl80211_iftype type)
+			       enum nl80211_iftype type, u32 *flags,
+			       struct vif_params *params)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
 	enum ieee80211_if_types itype;
+	struct net_device *dev;
+	struct ieee80211_sub_if_data *sdata;
+	int err;
 
 	if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
 		return -ENODEV;
@@ -46,7 +57,13 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
 	if (itype == IEEE80211_IF_TYPE_INVALID)
 		return -EINVAL;
 
-	return ieee80211_if_add(local->mdev, name, NULL, itype);
+	err = ieee80211_if_add(local->mdev, name, &dev, itype, params);
+	if (err || itype != IEEE80211_IF_TYPE_MNTR || !flags)
+		return err;
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	sdata->u.mntr_flags = *flags;
+	return 0;
 }
 
 static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
@@ -69,7 +86,8 @@ static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
 }
 
 static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
-				  enum nl80211_iftype type)
+				  enum nl80211_iftype type, u32 *flags,
+				  struct vif_params *params)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
 	struct net_device *dev;
@@ -99,6 +117,15 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
 	ieee80211_if_reinit(dev);
 	ieee80211_if_set_type(dev, itype);
 
+	if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
+		ieee80211_if_sta_set_mesh_id(&sdata->u.sta,
+					     params->mesh_id_len,
+					     params->mesh_id);
+
+	if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR || !flags)
+		return 0;
+
+	sdata->u.mntr_flags = *flags;
 	return 0;
 }
 
@@ -109,7 +136,8 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta = NULL;
 	enum ieee80211_key_alg alg;
-	int ret;
+	struct ieee80211_key *key;
+	int err;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
@@ -128,21 +156,28 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 		return -EINVAL;
 	}
 
+	key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key);
+	if (!key)
+		return -ENOMEM;
+
+	rcu_read_lock();
+
 	if (mac_addr) {
 		sta = sta_info_get(sdata->local, mac_addr);
-		if (!sta)
-			return -ENOENT;
+		if (!sta) {
+			ieee80211_key_free(key);
+			err = -ENOENT;
+			goto out_unlock;
+		}
 	}
 
-	ret = 0;
-	if (!ieee80211_key_alloc(sdata, sta, alg, key_idx,
-				 params->key_len, params->key))
-		ret = -ENOMEM;
+	ieee80211_key_link(key, sdata, sta);
 
-	if (sta)
-		sta_info_put(sta);
+	err = 0;
+ out_unlock:
+	rcu_read_unlock();
 
-	return ret;
+	return err;
 }
 
 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
@@ -154,27 +189,37 @@ static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
+	rcu_read_lock();
+
 	if (mac_addr) {
+		ret = -ENOENT;
+
 		sta = sta_info_get(sdata->local, mac_addr);
 		if (!sta)
-			return -ENOENT;
+			goto out_unlock;
 
-		ret = 0;
-		if (sta->key)
+		if (sta->key) {
 			ieee80211_key_free(sta->key);
-		else
-			ret = -ENOENT;
+			WARN_ON(sta->key);
+			ret = 0;
+		}
 
-		sta_info_put(sta);
-		return ret;
+		goto out_unlock;
 	}
 
-	if (!sdata->keys[key_idx])
-		return -ENOENT;
+	if (!sdata->keys[key_idx]) {
+		ret = -ENOENT;
+		goto out_unlock;
+	}
 
 	ieee80211_key_free(sdata->keys[key_idx]);
+	WARN_ON(sdata->keys[key_idx]);
 
-	return 0;
+	ret = 0;
+ out_unlock:
+	rcu_read_unlock();
+
+	return ret;
 }
 
 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
@@ -191,6 +236,8 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 	u16 iv16;
 	int err = -ENOENT;
 
+	rcu_read_lock();
+
 	if (mac_addr) {
 		sta = sta_info_get(sdata->local, mac_addr);
 		if (!sta)
@@ -254,8 +301,7 @@ static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 	err = 0;
 
  out:
-	if (sta)
-		sta_info_put(sta);
+	rcu_read_unlock();
 	return err;
 }
 
@@ -265,35 +311,83 @@ static int ieee80211_config_default_key(struct wiphy *wiphy,
 {
 	struct ieee80211_sub_if_data *sdata;
 
+	rcu_read_lock();
+
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	ieee80211_set_default_key(sdata, key_idx);
 
+	rcu_read_unlock();
+
 	return 0;
 }
 
+static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
+{
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
+
+	sinfo->filled = STATION_INFO_INACTIVE_TIME |
+			STATION_INFO_RX_BYTES |
+			STATION_INFO_TX_BYTES;
+
+	sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
+	sinfo->rx_bytes = sta->rx_bytes;
+	sinfo->tx_bytes = sta->tx_bytes;
+
+	if (ieee80211_vif_is_mesh(&sdata->vif)) {
+#ifdef CONFIG_MAC80211_MESH
+		sinfo->filled |= STATION_INFO_LLID |
+				 STATION_INFO_PLID |
+				 STATION_INFO_PLINK_STATE;
+
+		sinfo->llid = le16_to_cpu(sta->llid);
+		sinfo->plid = le16_to_cpu(sta->plid);
+		sinfo->plink_state = sta->plink_state;
+#endif
+	}
+}
+
+
+static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
+				 int idx, u8 *mac, struct station_info *sinfo)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct sta_info *sta;
+	int ret = -ENOENT;
+
+	rcu_read_lock();
+
+	sta = sta_info_get_by_idx(local, idx, dev);
+	if (sta) {
+		ret = 0;
+		memcpy(mac, sta->addr, ETH_ALEN);
+		sta_set_sinfo(sta, sinfo);
+	}
+
+	rcu_read_unlock();
+
+	return ret;
+}
+
 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
-				 u8 *mac, struct station_stats *stats)
+				 u8 *mac, struct station_info *sinfo)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct sta_info *sta;
+	int ret = -ENOENT;
 
-	sta = sta_info_get(local, mac);
-	if (!sta)
-		return -ENOENT;
+	rcu_read_lock();
 
 	/* XXX: verify sta->dev == dev */
 
-	stats->filled = STATION_STAT_INACTIVE_TIME |
-			STATION_STAT_RX_BYTES |
-			STATION_STAT_TX_BYTES;
-
-	stats->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
-	stats->rx_bytes = sta->rx_bytes;
-	stats->tx_bytes = sta->tx_bytes;
+	sta = sta_info_get(local, mac);
+	if (sta) {
+		ret = 0;
+		sta_set_sinfo(sta, sinfo);
+	}
 
-	sta_info_put(sta);
+	rcu_read_unlock();
 
-	return 0;
+	return ret;
 }
 
 /*
@@ -486,8 +580,8 @@ static void ieee80211_send_layer2_update(struct sta_info *sta)
 	msg->xid_info[1] = 1;	/* LLC types/classes: Type 1 LLC */
 	msg->xid_info[2] = 0;	/* XID sender's receive window size (RW) */
 
-	skb->dev = sta->dev;
-	skb->protocol = eth_type_trans(skb, sta->dev);
+	skb->dev = sta->sdata->dev;
+	skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 	memset(skb->cb, 0, sizeof(skb->cb));
 	netif_rx(skb);
 }
@@ -498,7 +592,14 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 {
 	u32 rates;
 	int i, j;
-	struct ieee80211_hw_mode *mode;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
+
+	/*
+	 * FIXME: updating the flags is racy when this function is
+	 *	  called from ieee80211_change_station(), this will
+	 *	  be resolved in a future patch.
+	 */
 
 	if (params->station_flags & STATION_FLAG_CHANGED) {
 		sta->flags &= ~WLAN_STA_AUTHORIZED;
@@ -514,6 +615,13 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 			sta->flags |= WLAN_STA_WME;
 	}
 
+	/*
+	 * FIXME: updating the following information is racy when this
+	 *	  function is called from ieee80211_change_station().
+	 *	  However, all this information should be static so
+	 *	  maybe we should just reject attemps to change it.
+	 */
+
 	if (params->aid) {
 		sta->aid = params->aid;
 		if (sta->aid > IEEE80211_MAX_AID)
@@ -525,15 +633,27 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 
 	if (params->supported_rates) {
 		rates = 0;
-		mode = local->oper_hw_mode;
+		sband = local->hw.wiphy->bands[local->oper_channel->band];
+
 		for (i = 0; i < params->supported_rates_len; i++) {
 			int rate = (params->supported_rates[i] & 0x7f) * 5;
-			for (j = 0; j < mode->num_rates; j++) {
-				if (mode->rates[j].rate == rate)
+			for (j = 0; j < sband->n_bitrates; j++) {
+				if (sband->bitrates[j].bitrate == rate)
 					rates |= BIT(j);
 			}
 		}
-		sta->supp_rates = rates;
+		sta->supp_rates[local->oper_channel->band] = rates;
+	}
+
+	if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
+		switch (params->plink_action) {
+		case PLINK_ACTION_OPEN:
+			mesh_plink_open(sta);
+			break;
+		case PLINK_ACTION_BLOCK:
+			mesh_plink_block(sta);
+			break;
+		}
 	}
 }
 
@@ -543,18 +663,12 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct sta_info *sta;
 	struct ieee80211_sub_if_data *sdata;
+	int err;
 
 	/* Prevent a race with changing the rate control algorithm */
 	if (!netif_running(dev))
 		return -ENETDOWN;
 
-	/* XXX: get sta belonging to dev */
-	sta = sta_info_get(local, mac);
-	if (sta) {
-		sta_info_put(sta);
-		return -EEXIST;
-	}
-
 	if (params->vlan) {
 		sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 
@@ -564,22 +678,36 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 	} else
 		sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	sta = sta_info_add(local, dev, mac, GFP_KERNEL);
+	if (compare_ether_addr(mac, dev->dev_addr) == 0)
+		return -EINVAL;
+
+	if (is_multicast_ether_addr(mac))
+		return -EINVAL;
+
+	sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 	if (!sta)
 		return -ENOMEM;
 
-	sta->dev = sdata->dev;
-	if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN ||
-	    sdata->vif.type == IEEE80211_IF_TYPE_AP)
-		ieee80211_send_layer2_update(sta);
-
 	sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 
 	sta_apply_parameters(local, sta, params);
 
 	rate_control_rate_init(sta, local);
 
-	sta_info_put(sta);
+	rcu_read_lock();
+
+	err = sta_info_insert(sta);
+	if (err) {
+		/* STA has been freed */
+		rcu_read_unlock();
+		return err;
+	}
+
+	if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN ||
+	    sdata->vif.type == IEEE80211_IF_TYPE_AP)
+		ieee80211_send_layer2_update(sta);
+
+	rcu_read_unlock();
 
 	return 0;
 }
@@ -587,19 +715,26 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 				 u8 *mac)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 
 	if (mac) {
+		rcu_read_lock();
+
 		/* XXX: get sta belonging to dev */
 		sta = sta_info_get(local, mac);
-		if (!sta)
+		if (!sta) {
+			rcu_read_unlock();
 			return -ENOENT;
+		}
+
+		sta_info_unlink(&sta);
+		rcu_read_unlock();
 
-		sta_info_free(sta);
-		sta_info_put(sta);
+		sta_info_destroy(sta);
 	} else
-		sta_info_flush(local, dev);
+		sta_info_flush(local, sdata);
 
 	return 0;
 }
@@ -613,28 +748,203 @@ static int ieee80211_change_station(struct wiphy *wiphy,
 	struct sta_info *sta;
 	struct ieee80211_sub_if_data *vlansdata;
 
+	rcu_read_lock();
+
 	/* XXX: get sta belonging to dev */
 	sta = sta_info_get(local, mac);
-	if (!sta)
+	if (!sta) {
+		rcu_read_unlock();
 		return -ENOENT;
+	}
 
-	if (params->vlan && params->vlan != sta->dev) {
+	if (params->vlan && params->vlan != sta->sdata->dev) {
 		vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 
 		if (vlansdata->vif.type != IEEE80211_IF_TYPE_VLAN ||
-		    vlansdata->vif.type != IEEE80211_IF_TYPE_AP)
+		    vlansdata->vif.type != IEEE80211_IF_TYPE_AP) {
+			rcu_read_unlock();
 			return -EINVAL;
+		}
 
-		sta->dev = params->vlan;
+		sta->sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 		ieee80211_send_layer2_update(sta);
 	}
 
 	sta_apply_parameters(local, sta, params);
 
-	sta_info_put(sta);
+	rcu_read_unlock();
+
+	return 0;
+}
+
+#ifdef CONFIG_MAC80211_MESH
+static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
+				 u8 *dst, u8 *next_hop)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct mesh_path *mpath;
+	struct sta_info *sta;
+	int err;
+
+	if (!netif_running(dev))
+		return -ENETDOWN;
+
+	if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)
+		return -ENOTSUPP;
+
+	rcu_read_lock();
+	sta = sta_info_get(local, next_hop);
+	if (!sta) {
+		rcu_read_unlock();
+		return -ENOENT;
+	}
 
+	err = mesh_path_add(dst, dev);
+	if (err) {
+		rcu_read_unlock();
+		return err;
+	}
+
+	mpath = mesh_path_lookup(dst, dev);
+	if (!mpath) {
+		rcu_read_unlock();
+		return -ENXIO;
+	}
+	mesh_path_fix_nexthop(mpath, sta);
+
+	rcu_read_unlock();
+	return 0;
+}
+
+static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
+				 u8 *dst)
+{
+	if (dst)
+		return mesh_path_del(dst, dev);
+
+	mesh_path_flush(dev);
+	return 0;
+}
+
+static int ieee80211_change_mpath(struct wiphy *wiphy,
+				    struct net_device *dev,
+				    u8 *dst, u8 *next_hop)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct mesh_path *mpath;
+	struct sta_info *sta;
+
+	if (!netif_running(dev))
+		return -ENETDOWN;
+
+	if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)
+		return -ENOTSUPP;
+
+	rcu_read_lock();
+
+	sta = sta_info_get(local, next_hop);
+	if (!sta) {
+		rcu_read_unlock();
+		return -ENOENT;
+	}
+
+	mpath = mesh_path_lookup(dst, dev);
+	if (!mpath) {
+		rcu_read_unlock();
+		return -ENOENT;
+	}
+
+	mesh_path_fix_nexthop(mpath, sta);
+
+	rcu_read_unlock();
+	return 0;
+}
+
+static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
+			    struct mpath_info *pinfo)
+{
+	if (mpath->next_hop)
+		memcpy(next_hop, mpath->next_hop->addr, ETH_ALEN);
+	else
+		memset(next_hop, 0, ETH_ALEN);
+
+	pinfo->filled = MPATH_INFO_FRAME_QLEN |
+			MPATH_INFO_DSN |
+			MPATH_INFO_METRIC |
+			MPATH_INFO_EXPTIME |
+			MPATH_INFO_DISCOVERY_TIMEOUT |
+			MPATH_INFO_DISCOVERY_RETRIES |
+			MPATH_INFO_FLAGS;
+
+	pinfo->frame_qlen = mpath->frame_queue.qlen;
+	pinfo->dsn = mpath->dsn;
+	pinfo->metric = mpath->metric;
+	if (time_before(jiffies, mpath->exp_time))
+		pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
+	pinfo->discovery_timeout =
+			jiffies_to_msecs(mpath->discovery_timeout);
+	pinfo->discovery_retries = mpath->discovery_retries;
+	pinfo->flags = 0;
+	if (mpath->flags & MESH_PATH_ACTIVE)
+		pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
+	if (mpath->flags & MESH_PATH_RESOLVING)
+		pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
+	if (mpath->flags & MESH_PATH_DSN_VALID)
+		pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID;
+	if (mpath->flags & MESH_PATH_FIXED)
+		pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
+	if (mpath->flags & MESH_PATH_RESOLVING)
+		pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
+
+	pinfo->flags = mpath->flags;
+}
+
+static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
+			       u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
+
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct mesh_path *mpath;
+
+	if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)
+		return -ENOTSUPP;
+
+	rcu_read_lock();
+	mpath = mesh_path_lookup(dst, dev);
+	if (!mpath) {
+		rcu_read_unlock();
+		return -ENOENT;
+	}
+	memcpy(dst, mpath->dst, ETH_ALEN);
+	mpath_set_pinfo(mpath, next_hop, pinfo);
+	rcu_read_unlock();
+	return 0;
+}
+
+static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
+				 int idx, u8 *dst, u8 *next_hop,
+				 struct mpath_info *pinfo)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct mesh_path *mpath;
+
+	if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)
+		return -ENOTSUPP;
+
+	rcu_read_lock();
+	mpath = mesh_path_lookup_by_idx(idx, dev);
+	if (!mpath) {
+		rcu_read_unlock();
+		return -ENOENT;
+	}
+	memcpy(dst, mpath->dst, ETH_ALEN);
+	mpath_set_pinfo(mpath, next_hop, pinfo);
+	rcu_read_unlock();
 	return 0;
 }
+#endif
 
 struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
@@ -651,4 +961,12 @@ struct cfg80211_ops mac80211_config_ops = {
 	.del_station = ieee80211_del_station,
 	.change_station = ieee80211_change_station,
 	.get_station = ieee80211_get_station,
+	.dump_station = ieee80211_dump_station,
+#ifdef CONFIG_MAC80211_MESH
+	.add_mpath = ieee80211_add_mpath,
+	.del_mpath = ieee80211_del_mpath,
+	.change_mpath = ieee80211_change_mpath,
+	.get_mpath = ieee80211_get_mpath,
+	.dump_mpath = ieee80211_dump_mpath,
+#endif
 };
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 60514b2c97b9..1cccbfd781f6 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -10,7 +10,7 @@
 #include <linux/debugfs.h>
 #include <linux/rtnetlink.h>
 #include "ieee80211_i.h"
-#include "ieee80211_rate.h"
+#include "rate.h"
 #include "debugfs.h"
 
 int mac80211_open_file_generic(struct inode *inode, struct file *file)
@@ -19,41 +19,6 @@ int mac80211_open_file_generic(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static const char *ieee80211_mode_str(int mode)
-{
-	switch (mode) {
-	case MODE_IEEE80211A:
-		return "IEEE 802.11a";
-	case MODE_IEEE80211B:
-		return "IEEE 802.11b";
-	case MODE_IEEE80211G:
-		return "IEEE 802.11g";
-	default:
-		return "UNKNOWN";
-	}
-}
-
-static ssize_t modes_read(struct file *file, char __user *userbuf,
-			  size_t count, loff_t *ppos)
-{
-	struct ieee80211_local *local = file->private_data;
-	struct ieee80211_hw_mode *mode;
-	char buf[150], *p = buf;
-
-	/* FIXME: locking! */
-	list_for_each_entry(mode, &local->modes_list, list) {
-		p += scnprintf(p, sizeof(buf)+buf-p,
-			       "%s\n", ieee80211_mode_str(mode->mode));
-	}
-
-	return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
-}
-
-static const struct file_operations modes_ops = {
-	.read = modes_read,
-	.open = mac80211_open_file_generic,
-};
-
 #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)		\
 static ssize_t name## _read(struct file *file, char __user *userbuf,	\
 			    size_t count, loff_t *ppos)			\
@@ -72,7 +37,7 @@ static const struct file_operations name## _ops = {			\
 };
 
 #define DEBUGFS_ADD(name)						\
-	local->debugfs.name = debugfs_create_file(#name, 0444, phyd,	\
+	local->debugfs.name = debugfs_create_file(#name, 0400, phyd,	\
 						  local, &name## _ops);
 
 #define DEBUGFS_DEL(name)						\
@@ -80,10 +45,8 @@ static const struct file_operations name## _ops = {			\
 	local->debugfs.name = NULL;
 
 
-DEBUGFS_READONLY_FILE(channel, 20, "%d",
-		      local->hw.conf.channel);
 DEBUGFS_READONLY_FILE(frequency, 20, "%d",
-		      local->hw.conf.freq);
+		      local->hw.conf.channel->center_freq);
 DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d",
 		      local->hw.conf.antenna_sel_tx);
 DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d",
@@ -100,8 +63,6 @@ DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
 		      local->long_retry_limit);
 DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
 		      local->total_ps_buffered);
-DEBUGFS_READONLY_FILE(mode, 20, "%s",
-		      ieee80211_mode_str(local->hw.conf.phymode));
 DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x",
 		      local->wep_iv & 0xffffff);
 DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
@@ -169,7 +130,7 @@ static const struct file_operations stats_ ##name## _ops = {		\
 };
 
 #define DEBUGFS_STATS_ADD(name)						\
-	local->debugfs.stats.name = debugfs_create_file(#name, 0444, statsd,\
+	local->debugfs.stats.name = debugfs_create_file(#name, 0400, statsd,\
 		local, &stats_ ##name## _ops);
 
 #define DEBUGFS_STATS_DEL(name)						\
@@ -294,7 +255,6 @@ void debugfs_hw_add(struct ieee80211_local *local)
 	local->debugfs.stations = debugfs_create_dir("stations", phyd);
 	local->debugfs.keys = debugfs_create_dir("keys", phyd);
 
-	DEBUGFS_ADD(channel);
 	DEBUGFS_ADD(frequency);
 	DEBUGFS_ADD(antenna_sel_tx);
 	DEBUGFS_ADD(antenna_sel_rx);
@@ -304,9 +264,7 @@ void debugfs_hw_add(struct ieee80211_local *local)
 	DEBUGFS_ADD(short_retry_limit);
 	DEBUGFS_ADD(long_retry_limit);
 	DEBUGFS_ADD(total_ps_buffered);
-	DEBUGFS_ADD(mode);
 	DEBUGFS_ADD(wep_iv);
-	DEBUGFS_ADD(modes);
 
 	statsd = debugfs_create_dir("statistics", phyd);
 	local->debugfs.statistics = statsd;
@@ -356,7 +314,6 @@ void debugfs_hw_add(struct ieee80211_local *local)
 
 void debugfs_hw_del(struct ieee80211_local *local)
 {
-	DEBUGFS_DEL(channel);
 	DEBUGFS_DEL(frequency);
 	DEBUGFS_DEL(antenna_sel_tx);
 	DEBUGFS_DEL(antenna_sel_rx);
@@ -366,9 +323,7 @@ void debugfs_hw_del(struct ieee80211_local *local)
 	DEBUGFS_DEL(short_retry_limit);
 	DEBUGFS_DEL(long_retry_limit);
 	DEBUGFS_DEL(total_ps_buffered);
-	DEBUGFS_DEL(mode);
 	DEBUGFS_DEL(wep_iv);
-	DEBUGFS_DEL(modes);
 
 	DEBUGFS_STATS_DEL(transmitted_fragment_count);
 	DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index c881524c8725..879e7210458a 100644
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -10,7 +10,7 @@
 
 #include <linux/kobject.h>
 #include "ieee80211_i.h"
-#include "ieee80211_key.h"
+#include "key.h"
 #include "debugfs.h"
 #include "debugfs_key.h"
 
@@ -184,23 +184,36 @@ KEY_OPS(key);
 	key->debugfs.name = debugfs_create_file(#name, 0400,\
 				key->debugfs.dir, key, &key_##name##_ops);
 
-void ieee80211_debugfs_key_add(struct ieee80211_local *local,
-			       struct ieee80211_key *key)
-{
+void ieee80211_debugfs_key_add(struct ieee80211_key *key)
+  {
 	static int keycount;
-	char buf[20];
+	char buf[50];
+	DECLARE_MAC_BUF(mac);
+	struct sta_info *sta;
 
-	if (!local->debugfs.keys)
+	if (!key->local->debugfs.keys)
 		return;
 
 	sprintf(buf, "%d", keycount);
+	key->debugfs.cnt = keycount;
 	keycount++;
 	key->debugfs.dir = debugfs_create_dir(buf,
-					local->debugfs.keys);
+					key->local->debugfs.keys);
 
 	if (!key->debugfs.dir)
 		return;
 
+	rcu_read_lock();
+	sta = rcu_dereference(key->sta);
+	if (sta)
+		sprintf(buf, "../../stations/%s", print_mac(mac, sta->addr));
+	rcu_read_unlock();
+
+	/* using sta as a boolean is fine outside RCU lock */
+	if (sta)
+		key->debugfs.stalink =
+			debugfs_create_symlink("station", key->debugfs.dir, buf);
+
 	DEBUGFS_ADD(keylen);
 	DEBUGFS_ADD(flags);
 	DEBUGFS_ADD(keyidx);
@@ -246,7 +259,7 @@ void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
 	if (!sdata->debugfsdir)
 		return;
 
-	sprintf(buf, "../keys/%d", sdata->default_key->conf.keyidx);
+	sprintf(buf, "../keys/%d", sdata->default_key->debugfs.cnt);
 	sdata->debugfs.default_key =
 		debugfs_create_symlink("default_key", sdata->debugfsdir, buf);
 }
@@ -258,19 +271,6 @@ void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
 	debugfs_remove(sdata->debugfs.default_key);
 	sdata->debugfs.default_key = NULL;
 }
-void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
-				    struct sta_info *sta)
-{
-	char buf[50];
-	DECLARE_MAC_BUF(mac);
-
-	if (!key->debugfs.dir)
-		return;
-
-	sprintf(buf, "../../stations/%s", print_mac(mac, sta->addr));
-	key->debugfs.stalink =
-		debugfs_create_symlink("station", key->debugfs.dir, buf);
-}
 
 void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
 				   struct sta_info *sta)
diff --git a/net/mac80211/debugfs_key.h b/net/mac80211/debugfs_key.h
index aecfce395da6..b1a3754ee240 100644
--- a/net/mac80211/debugfs_key.h
+++ b/net/mac80211/debugfs_key.h
@@ -2,18 +2,14 @@
 #define __MAC80211_DEBUGFS_KEY_H
 
 #ifdef CONFIG_MAC80211_DEBUGFS
-void ieee80211_debugfs_key_add(struct ieee80211_local *local,
-			       struct ieee80211_key *key);
+void ieee80211_debugfs_key_add(struct ieee80211_key *key);
 void ieee80211_debugfs_key_remove(struct ieee80211_key *key);
 void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata);
 void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata);
-void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
-				    struct sta_info *sta);
 void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
 				   struct sta_info *sta);
 #else
-static inline void ieee80211_debugfs_key_add(struct ieee80211_local *local,
-					     struct ieee80211_key *key)
+static inline void ieee80211_debugfs_key_add(struct ieee80211_key *key)
 {}
 static inline void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
 {}
@@ -23,9 +19,6 @@ static inline void ieee80211_debugfs_key_add_default(
 static inline void ieee80211_debugfs_key_remove_default(
 	struct ieee80211_sub_if_data *sdata)
 {}
-static inline void ieee80211_debugfs_key_sta_link(
-	struct ieee80211_key *key, struct sta_info *sta)
-{}
 static inline void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
 						 struct sta_info *sta)
 {}
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 829872a3ae81..e3326d046944 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -17,7 +17,7 @@
 #include <net/mac80211.h>
 #include <net/cfg80211.h>
 #include "ieee80211_i.h"
-#include "ieee80211_rate.h"
+#include "rate.h"
 #include "debugfs.h"
 #include "debugfs_netdev.h"
 
@@ -31,14 +31,39 @@ static ssize_t ieee80211_if_read(
 	ssize_t ret = -EINVAL;
 
 	read_lock(&dev_base_lock);
-	if (sdata->dev->reg_state == NETREG_REGISTERED) {
+	if (sdata->dev->reg_state == NETREG_REGISTERED)
 		ret = (*format)(sdata, buf, sizeof(buf));
-		ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
-	}
 	read_unlock(&dev_base_lock);
+
+	if (ret != -EINVAL)
+		ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
+
 	return ret;
 }
 
+#ifdef CONFIG_MAC80211_MESH
+static ssize_t ieee80211_if_write(
+	struct ieee80211_sub_if_data *sdata,
+	char const __user *userbuf,
+	size_t count, loff_t *ppos,
+	int (*format)(struct ieee80211_sub_if_data *, char *))
+{
+	char buf[10];
+	int buf_size;
+
+	memset(buf, 0x00, sizeof(buf));
+	buf_size = min(count, (sizeof(buf)-1));
+	if (copy_from_user(buf, userbuf, buf_size))
+		return count;
+	read_lock(&dev_base_lock);
+	if (sdata->dev->reg_state == NETREG_REGISTERED)
+		(*format)(sdata, buf);
+	read_unlock(&dev_base_lock);
+
+	return count;
+}
+#endif
+
 #define IEEE80211_IF_FMT(name, field, format_string)			\
 static ssize_t ieee80211_if_fmt_##name(					\
 	const struct ieee80211_sub_if_data *sdata, char *buf,		\
@@ -46,6 +71,19 @@ static ssize_t ieee80211_if_fmt_##name(					\
 {									\
 	return scnprintf(buf, buflen, format_string, sdata->field);	\
 }
+#define IEEE80211_IF_WFMT(name, field, type)				\
+static int ieee80211_if_wfmt_##name(					\
+	struct ieee80211_sub_if_data *sdata, char *buf)			\
+{									\
+	unsigned long tmp;						\
+	char *endp;							\
+									\
+	tmp = simple_strtoul(buf, &endp, 0);				\
+	if ((endp == buf) || ((type)tmp != tmp))			\
+		return -EINVAL;						\
+	sdata->field = tmp;						\
+	return 0;							\
+}
 #define IEEE80211_IF_FMT_DEC(name, field)				\
 		IEEE80211_IF_FMT(name, field, "%d\n")
 #define IEEE80211_IF_FMT_HEX(name, field)				\
@@ -88,10 +126,37 @@ static const struct file_operations name##_ops = {			\
 		IEEE80211_IF_FMT_##format(name, field)			\
 		__IEEE80211_IF_FILE(name)
 
+#define __IEEE80211_IF_WFILE(name)					\
+static ssize_t ieee80211_if_read_##name(struct file *file,		\
+					char __user *userbuf,		\
+					size_t count, loff_t *ppos)	\
+{									\
+	return ieee80211_if_read(file->private_data,			\
+				 userbuf, count, ppos,			\
+				 ieee80211_if_fmt_##name);		\
+}									\
+static ssize_t ieee80211_if_write_##name(struct file *file,		\
+					const char __user *userbuf,	\
+					size_t count, loff_t *ppos)	\
+{									\
+	return ieee80211_if_write(file->private_data,			\
+				 userbuf, count, ppos,			\
+				 ieee80211_if_wfmt_##name);		\
+}									\
+static const struct file_operations name##_ops = {			\
+	.read = ieee80211_if_read_##name,				\
+	.write = ieee80211_if_write_##name,				\
+	.open = mac80211_open_file_generic,				\
+}
+
+#define IEEE80211_IF_WFILE(name, field, format, type)			\
+		IEEE80211_IF_FMT_##format(name, field)			\
+		IEEE80211_IF_WFMT(name, field, type)			\
+		__IEEE80211_IF_WFILE(name)
+
 /* common attributes */
 IEEE80211_IF_FILE(channel_use, channel_use, DEC);
 IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
-IEEE80211_IF_FILE(ieee802_1x_pac, ieee802_1x_pac, DEC);
 
 /* STA/IBSS attributes */
 IEEE80211_IF_FILE(state, u.sta.state, DEC);
@@ -107,6 +172,7 @@ IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC);
 IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX);
 IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC);
 IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC);
+IEEE80211_IF_FILE(num_beacons_sta, u.sta.num_beacons, DEC);
 
 static ssize_t ieee80211_if_fmt_flags(
 	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
@@ -140,15 +206,50 @@ __IEEE80211_IF_FILE(num_buffered_multicast);
 /* WDS attributes */
 IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
 
+#ifdef CONFIG_MAC80211_MESH
+/* Mesh stats attributes */
+IEEE80211_IF_FILE(fwded_frames, u.sta.mshstats.fwded_frames, DEC);
+IEEE80211_IF_FILE(dropped_frames_ttl, u.sta.mshstats.dropped_frames_ttl, DEC);
+IEEE80211_IF_FILE(dropped_frames_no_route,
+		u.sta.mshstats.dropped_frames_no_route, DEC);
+IEEE80211_IF_FILE(estab_plinks, u.sta.mshstats.estab_plinks, ATOMIC);
+
+/* Mesh parameters */
+IEEE80211_IF_WFILE(dot11MeshMaxRetries,
+		u.sta.mshcfg.dot11MeshMaxRetries, DEC, u8);
+IEEE80211_IF_WFILE(dot11MeshRetryTimeout,
+		u.sta.mshcfg.dot11MeshRetryTimeout, DEC, u16);
+IEEE80211_IF_WFILE(dot11MeshConfirmTimeout,
+		u.sta.mshcfg.dot11MeshConfirmTimeout, DEC, u16);
+IEEE80211_IF_WFILE(dot11MeshHoldingTimeout,
+		u.sta.mshcfg.dot11MeshHoldingTimeout, DEC, u16);
+IEEE80211_IF_WFILE(dot11MeshTTL, u.sta.mshcfg.dot11MeshTTL, DEC, u8);
+IEEE80211_IF_WFILE(auto_open_plinks, u.sta.mshcfg.auto_open_plinks, DEC, u8);
+IEEE80211_IF_WFILE(dot11MeshMaxPeerLinks,
+		u.sta.mshcfg.dot11MeshMaxPeerLinks, DEC, u16);
+IEEE80211_IF_WFILE(dot11MeshHWMPactivePathTimeout,
+		u.sta.mshcfg.dot11MeshHWMPactivePathTimeout, DEC, u32);
+IEEE80211_IF_WFILE(dot11MeshHWMPpreqMinInterval,
+		u.sta.mshcfg.dot11MeshHWMPpreqMinInterval, DEC, u16);
+IEEE80211_IF_WFILE(dot11MeshHWMPnetDiameterTraversalTime,
+		u.sta.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC, u16);
+IEEE80211_IF_WFILE(dot11MeshHWMPmaxPREQretries,
+		u.sta.mshcfg.dot11MeshHWMPmaxPREQretries, DEC, u8);
+IEEE80211_IF_WFILE(path_refresh_time,
+		u.sta.mshcfg.path_refresh_time, DEC, u32);
+IEEE80211_IF_WFILE(min_discovery_timeout,
+		u.sta.mshcfg.min_discovery_timeout, DEC, u16);
+#endif
+
+
 #define DEBUGFS_ADD(name, type)\
-	sdata->debugfs.type.name = debugfs_create_file(#name, 0444,\
+	sdata->debugfs.type.name = debugfs_create_file(#name, 0400,\
 		sdata->debugfsdir, sdata, &name##_ops);
 
 static void add_sta_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(channel_use, sta);
 	DEBUGFS_ADD(drop_unencrypted, sta);
-	DEBUGFS_ADD(ieee802_1x_pac, sta);
 	DEBUGFS_ADD(state, sta);
 	DEBUGFS_ADD(bssid, sta);
 	DEBUGFS_ADD(prev_bssid, sta);
@@ -163,13 +264,13 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata)
 	DEBUGFS_ADD(auth_alg, sta);
 	DEBUGFS_ADD(auth_transaction, sta);
 	DEBUGFS_ADD(flags, sta);
+	DEBUGFS_ADD(num_beacons_sta, sta);
 }
 
 static void add_ap_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(channel_use, ap);
 	DEBUGFS_ADD(drop_unencrypted, ap);
-	DEBUGFS_ADD(ieee802_1x_pac, ap);
 	DEBUGFS_ADD(num_sta_ps, ap);
 	DEBUGFS_ADD(dtim_count, ap);
 	DEBUGFS_ADD(num_beacons, ap);
@@ -182,7 +283,6 @@ static void add_wds_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(channel_use, wds);
 	DEBUGFS_ADD(drop_unencrypted, wds);
-	DEBUGFS_ADD(ieee802_1x_pac, wds);
 	DEBUGFS_ADD(peer, wds);
 }
 
@@ -190,19 +290,63 @@ static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(channel_use, vlan);
 	DEBUGFS_ADD(drop_unencrypted, vlan);
-	DEBUGFS_ADD(ieee802_1x_pac, vlan);
 }
 
 static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
 {
 }
 
+#ifdef CONFIG_MAC80211_MESH
+#define MESHSTATS_ADD(name)\
+	sdata->mesh_stats.name = debugfs_create_file(#name, 0400,\
+		sdata->mesh_stats_dir, sdata, &name##_ops);
+
+static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
+{
+	sdata->mesh_stats_dir = debugfs_create_dir("mesh_stats",
+				sdata->debugfsdir);
+	MESHSTATS_ADD(fwded_frames);
+	MESHSTATS_ADD(dropped_frames_ttl);
+	MESHSTATS_ADD(dropped_frames_no_route);
+	MESHSTATS_ADD(estab_plinks);
+}
+
+#define MESHPARAMS_ADD(name)\
+	sdata->mesh_config.name = debugfs_create_file(#name, 0600,\
+		sdata->mesh_config_dir, sdata, &name##_ops);
+
+static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
+{
+	sdata->mesh_config_dir = debugfs_create_dir("mesh_config",
+				sdata->debugfsdir);
+	MESHPARAMS_ADD(dot11MeshMaxRetries);
+	MESHPARAMS_ADD(dot11MeshRetryTimeout);
+	MESHPARAMS_ADD(dot11MeshConfirmTimeout);
+	MESHPARAMS_ADD(dot11MeshHoldingTimeout);
+	MESHPARAMS_ADD(dot11MeshTTL);
+	MESHPARAMS_ADD(auto_open_plinks);
+	MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
+	MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
+	MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
+	MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
+	MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
+	MESHPARAMS_ADD(path_refresh_time);
+	MESHPARAMS_ADD(min_discovery_timeout);
+}
+#endif
+
 static void add_files(struct ieee80211_sub_if_data *sdata)
 {
 	if (!sdata->debugfsdir)
 		return;
 
 	switch (sdata->vif.type) {
+	case IEEE80211_IF_TYPE_MESH_POINT:
+#ifdef CONFIG_MAC80211_MESH
+		add_mesh_stats(sdata);
+		add_mesh_config(sdata);
+#endif
+		/* fall through */
 	case IEEE80211_IF_TYPE_STA:
 	case IEEE80211_IF_TYPE_IBSS:
 		add_sta_files(sdata);
@@ -234,7 +378,6 @@ static void del_sta_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_DEL(channel_use, sta);
 	DEBUGFS_DEL(drop_unencrypted, sta);
-	DEBUGFS_DEL(ieee802_1x_pac, sta);
 	DEBUGFS_DEL(state, sta);
 	DEBUGFS_DEL(bssid, sta);
 	DEBUGFS_DEL(prev_bssid, sta);
@@ -249,13 +392,13 @@ static void del_sta_files(struct ieee80211_sub_if_data *sdata)
 	DEBUGFS_DEL(auth_alg, sta);
 	DEBUGFS_DEL(auth_transaction, sta);
 	DEBUGFS_DEL(flags, sta);
+	DEBUGFS_DEL(num_beacons_sta, sta);
 }
 
 static void del_ap_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_DEL(channel_use, ap);
 	DEBUGFS_DEL(drop_unencrypted, ap);
-	DEBUGFS_DEL(ieee802_1x_pac, ap);
 	DEBUGFS_DEL(num_sta_ps, ap);
 	DEBUGFS_DEL(dtim_count, ap);
 	DEBUGFS_DEL(num_beacons, ap);
@@ -268,7 +411,6 @@ static void del_wds_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_DEL(channel_use, wds);
 	DEBUGFS_DEL(drop_unencrypted, wds);
-	DEBUGFS_DEL(ieee802_1x_pac, wds);
 	DEBUGFS_DEL(peer, wds);
 }
 
@@ -276,19 +418,67 @@ static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_DEL(channel_use, vlan);
 	DEBUGFS_DEL(drop_unencrypted, vlan);
-	DEBUGFS_DEL(ieee802_1x_pac, vlan);
 }
 
 static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
 {
 }
 
+#ifdef CONFIG_MAC80211_MESH
+#define MESHSTATS_DEL(name)			\
+	do {						\
+		debugfs_remove(sdata->mesh_stats.name);	\
+		sdata->mesh_stats.name = NULL;		\
+	} while (0)
+
+static void del_mesh_stats(struct ieee80211_sub_if_data *sdata)
+{
+	MESHSTATS_DEL(fwded_frames);
+	MESHSTATS_DEL(dropped_frames_ttl);
+	MESHSTATS_DEL(dropped_frames_no_route);
+	MESHSTATS_DEL(estab_plinks);
+	debugfs_remove(sdata->mesh_stats_dir);
+	sdata->mesh_stats_dir = NULL;
+}
+
+#define MESHPARAMS_DEL(name)			\
+	do {						\
+		debugfs_remove(sdata->mesh_config.name);	\
+		sdata->mesh_config.name = NULL;		\
+	} while (0)
+
+static void del_mesh_config(struct ieee80211_sub_if_data *sdata)
+{
+	MESHPARAMS_DEL(dot11MeshMaxRetries);
+	MESHPARAMS_DEL(dot11MeshRetryTimeout);
+	MESHPARAMS_DEL(dot11MeshConfirmTimeout);
+	MESHPARAMS_DEL(dot11MeshHoldingTimeout);
+	MESHPARAMS_DEL(dot11MeshTTL);
+	MESHPARAMS_DEL(auto_open_plinks);
+	MESHPARAMS_DEL(dot11MeshMaxPeerLinks);
+	MESHPARAMS_DEL(dot11MeshHWMPactivePathTimeout);
+	MESHPARAMS_DEL(dot11MeshHWMPpreqMinInterval);
+	MESHPARAMS_DEL(dot11MeshHWMPnetDiameterTraversalTime);
+	MESHPARAMS_DEL(dot11MeshHWMPmaxPREQretries);
+	MESHPARAMS_DEL(path_refresh_time);
+	MESHPARAMS_DEL(min_discovery_timeout);
+	debugfs_remove(sdata->mesh_config_dir);
+	sdata->mesh_config_dir = NULL;
+}
+#endif
+
 static void del_files(struct ieee80211_sub_if_data *sdata, int type)
 {
 	if (!sdata->debugfsdir)
 		return;
 
 	switch (type) {
+	case IEEE80211_IF_TYPE_MESH_POINT:
+#ifdef CONFIG_MAC80211_MESH
+		del_mesh_stats(sdata);
+		del_mesh_config(sdata);
+#endif
+		/* fall through */
 	case IEEE80211_IF_TYPE_STA:
 	case IEEE80211_IF_TYPE_IBSS:
 		del_sta_files(sdata);
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 8f5944c53d4e..6d47a1d31b37 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -33,25 +33,16 @@ static ssize_t sta_ ##name## _read(struct file *file,			\
 #define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
 #define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
 
-#define STA_READ_RATE(name, field)					\
-static ssize_t sta_##name##_read(struct file *file,			\
-				 char __user *userbuf,			\
-				 size_t count, loff_t *ppos)		\
-{									\
-	struct sta_info *sta = file->private_data;			\
-	struct ieee80211_local *local = wdev_priv(sta->dev->ieee80211_ptr);\
-	struct ieee80211_hw_mode *mode = local->oper_hw_mode;		\
-	char buf[20];							\
-	int res = scnprintf(buf, sizeof(buf), "%d\n",			\
-			    (sta->field >= 0 &&				\
-			    sta->field < mode->num_rates) ?		\
-			    mode->rates[sta->field].rate : -1);		\
-	return simple_read_from_buffer(userbuf, count, ppos, buf, res);	\
+#define STA_OPS(name)							\
+static const struct file_operations sta_ ##name## _ops = {		\
+	.read = sta_##name##_read,					\
+	.open = mac80211_open_file_generic,				\
 }
 
-#define STA_OPS(name)							\
+#define STA_OPS_WR(name)						\
 static const struct file_operations sta_ ##name## _ops = {		\
 	.read = sta_##name##_read,					\
+	.write = sta_##name##_write,					\
 	.open = mac80211_open_file_generic,				\
 }
 
@@ -60,7 +51,7 @@ static const struct file_operations sta_ ##name## _ops = {		\
 		STA_OPS(name)
 
 STA_FILE(aid, aid, D);
-STA_FILE(dev, dev->name, S);
+STA_FILE(dev, sdata->dev->name, S);
 STA_FILE(rx_packets, rx_packets, LU);
 STA_FILE(tx_packets, tx_packets, LU);
 STA_FILE(rx_bytes, rx_bytes, LU);
@@ -70,27 +61,23 @@ STA_FILE(rx_fragments, rx_fragments, LU);
 STA_FILE(rx_dropped, rx_dropped, LU);
 STA_FILE(tx_fragments, tx_fragments, LU);
 STA_FILE(tx_filtered, tx_filtered_count, LU);
-STA_FILE(txrate, txrate, RATE);
-STA_FILE(last_txrate, last_txrate, RATE);
 STA_FILE(tx_retry_failed, tx_retry_failed, LU);
 STA_FILE(tx_retry_count, tx_retry_count, LU);
 STA_FILE(last_rssi, last_rssi, D);
 STA_FILE(last_signal, last_signal, D);
 STA_FILE(last_noise, last_noise, D);
 STA_FILE(channel_use, channel_use, D);
-STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D);
+STA_FILE(wep_weak_iv_count, wep_weak_iv_count, LU);
 
 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
 			      size_t count, loff_t *ppos)
 {
 	char buf[100];
 	struct sta_info *sta = file->private_data;
-	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",
 		sta->flags & WLAN_STA_AUTH ? "AUTH\n" : "",
 		sta->flags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
 		sta->flags & WLAN_STA_PS ? "PS\n" : "",
-		sta->flags & WLAN_STA_TIM ? "TIM\n" : "",
-		sta->flags & WLAN_STA_PERM ? "PERM\n" : "",
 		sta->flags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
 		sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
 		sta->flags & WLAN_STA_WME ? "WME\n" : "",
@@ -111,31 +98,6 @@ static ssize_t sta_num_ps_buf_frames_read(struct file *file,
 }
 STA_OPS(num_ps_buf_frames);
 
-static ssize_t sta_last_ack_rssi_read(struct file *file, char __user *userbuf,
-				      size_t count, loff_t *ppos)
-{
-	char buf[100];
-	struct sta_info *sta = file->private_data;
-	int res = scnprintf(buf, sizeof(buf), "%d %d %d\n",
-			    sta->last_ack_rssi[0],
-			    sta->last_ack_rssi[1],
-			    sta->last_ack_rssi[2]);
-	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-STA_OPS(last_ack_rssi);
-
-static ssize_t sta_last_ack_ms_read(struct file *file, char __user *userbuf,
-				    size_t count, loff_t *ppos)
-{
-	char buf[20];
-	struct sta_info *sta = file->private_data;
-	int res = scnprintf(buf, sizeof(buf), "%d\n",
-			    sta->last_ack ?
-			    jiffies_to_msecs(jiffies - sta->last_ack) : -1);
-	return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-STA_OPS(last_ack_ms);
-
 static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
 				    size_t count, loff_t *ppos)
 {
@@ -191,8 +153,120 @@ static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf,
 STA_OPS(wme_tx_queue);
 #endif
 
+static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
+					size_t count, loff_t *ppos)
+{
+	char buf[768], *p = buf;
+	int i;
+	struct sta_info *sta = file->private_data;
+	p += scnprintf(p, sizeof(buf)+buf-p, "Agg state for STA is:\n");
+	p += scnprintf(p, sizeof(buf)+buf-p, " STA next dialog_token is %d \n "
+			"TIDs info is: \n TID :",
+			(sta->ampdu_mlme.dialog_token_allocator + 1));
+	for (i = 0; i < STA_TID_NUM; i++)
+		p += scnprintf(p, sizeof(buf)+buf-p, "%5d", i);
+
+	p += scnprintf(p, sizeof(buf)+buf-p, "\n RX  :");
+	for (i = 0; i < STA_TID_NUM; i++)
+		p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
+			sta->ampdu_mlme.tid_state_rx[i]);
+
+	p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:");
+	for (i = 0; i < STA_TID_NUM; i++)
+		p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
+			sta->ampdu_mlme.tid_state_rx[i]?
+			sta->ampdu_mlme.tid_rx[i]->dialog_token : 0);
+
+	p += scnprintf(p, sizeof(buf)+buf-p, "\n TX  :");
+	for (i = 0; i < STA_TID_NUM; i++)
+		p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
+			sta->ampdu_mlme.tid_state_tx[i]);
+
+	p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:");
+	for (i = 0; i < STA_TID_NUM; i++)
+		p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
+			sta->ampdu_mlme.tid_state_tx[i]?
+			sta->ampdu_mlme.tid_tx[i]->dialog_token : 0);
+
+	p += scnprintf(p, sizeof(buf)+buf-p, "\n SSN :");
+	for (i = 0; i < STA_TID_NUM; i++)
+		p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
+			sta->ampdu_mlme.tid_state_tx[i]?
+			sta->ampdu_mlme.tid_tx[i]->ssn : 0);
+
+	p += scnprintf(p, sizeof(buf)+buf-p, "\n");
+
+	return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
+}
+
+static ssize_t sta_agg_status_write(struct file *file,
+		const char __user *user_buf, size_t count, loff_t *ppos)
+{
+	struct sta_info *sta = file->private_data;
+	struct net_device *dev = sta->sdata->dev;
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_hw *hw = &local->hw;
+	u8 *da = sta->addr;
+	static int tid_static_tx[16] = {0, 0, 0, 0, 0, 0, 0, 0,
+					0, 0, 0, 0, 0, 0, 0, 0};
+	static int tid_static_rx[16] = {1, 1, 1, 1, 1, 1, 1, 1,
+					1, 1, 1, 1, 1, 1, 1, 1};
+	char *endp;
+	char buf[32];
+	int buf_size, rs;
+	unsigned int tid_num;
+	char state[4];
+
+	memset(buf, 0x00, sizeof(buf));
+	buf_size = min(count, (sizeof(buf)-1));
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+
+	tid_num = simple_strtoul(buf, &endp, 0);
+	if (endp == buf)
+		return -EINVAL;
+
+	if ((tid_num >= 100) && (tid_num <= 115)) {
+		/* toggle Rx aggregation command */
+		tid_num = tid_num - 100;
+		if (tid_static_rx[tid_num] == 1) {
+			strcpy(state, "off ");
+			ieee80211_sta_stop_rx_ba_session(dev, da, tid_num, 0,
+					WLAN_REASON_QSTA_REQUIRE_SETUP);
+			sta->ampdu_mlme.tid_state_rx[tid_num] |=
+					HT_AGG_STATE_DEBUGFS_CTL;
+			tid_static_rx[tid_num] = 0;
+		} else {
+			strcpy(state, "on ");
+			sta->ampdu_mlme.tid_state_rx[tid_num] &=
+					~HT_AGG_STATE_DEBUGFS_CTL;
+			tid_static_rx[tid_num] = 1;
+		}
+		printk(KERN_DEBUG "debugfs - try switching tid %u %s\n",
+				tid_num, state);
+	} else if ((tid_num >= 0) && (tid_num <= 15)) {
+		/* toggle Tx aggregation command */
+		if (tid_static_tx[tid_num] == 0) {
+			strcpy(state, "on ");
+			rs =  ieee80211_start_tx_ba_session(hw, da, tid_num);
+			if (rs == 0)
+				tid_static_tx[tid_num] = 1;
+		} else {
+			strcpy(state, "off");
+			rs =  ieee80211_stop_tx_ba_session(hw, da, tid_num, 1);
+			if (rs == 0)
+				tid_static_tx[tid_num] = 0;
+		}
+		printk(KERN_DEBUG "debugfs - switching tid %u %s, return=%d\n",
+				tid_num, state, rs);
+	}
+
+	return count;
+}
+STA_OPS_WR(agg_status);
+
 #define DEBUGFS_ADD(name) \
-	sta->debugfs.name = debugfs_create_file(#name, 0444, \
+	sta->debugfs.name = debugfs_create_file(#name, 0400, \
 		sta->debugfs.dir, sta, &sta_ ##name## _ops);
 
 #define DEBUGFS_DEL(name) \
@@ -203,12 +277,13 @@ STA_OPS(wme_tx_queue);
 void ieee80211_sta_debugfs_add(struct sta_info *sta)
 {
 	struct dentry *stations_dir = sta->local->debugfs.stations;
-	DECLARE_MAC_BUF(mac);
+	DECLARE_MAC_BUF(mbuf);
+	u8 *mac;
 
 	if (!stations_dir)
 		return;
 
-	print_mac(mac, sta->addr);
+	mac = print_mac(mbuf, sta->addr);
 
 	sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
 	if (!sta->debugfs.dir)
@@ -216,28 +291,26 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
 
 	DEBUGFS_ADD(flags);
 	DEBUGFS_ADD(num_ps_buf_frames);
-	DEBUGFS_ADD(last_ack_rssi);
-	DEBUGFS_ADD(last_ack_ms);
 	DEBUGFS_ADD(inactive_ms);
 	DEBUGFS_ADD(last_seq_ctrl);
 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 	DEBUGFS_ADD(wme_rx_queue);
 	DEBUGFS_ADD(wme_tx_queue);
 #endif
+	DEBUGFS_ADD(agg_status);
 }
 
 void ieee80211_sta_debugfs_remove(struct sta_info *sta)
 {
 	DEBUGFS_DEL(flags);
 	DEBUGFS_DEL(num_ps_buf_frames);
-	DEBUGFS_DEL(last_ack_rssi);
-	DEBUGFS_DEL(last_ack_ms);
 	DEBUGFS_DEL(inactive_ms);
 	DEBUGFS_DEL(last_seq_ctrl);
 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 	DEBUGFS_DEL(wme_rx_queue);
 	DEBUGFS_DEL(wme_tx_queue);
 #endif
+	DEBUGFS_DEL(agg_status);
 
 	debugfs_remove(sta->debugfs.dir);
 	sta->debugfs.dir = NULL;
diff --git a/net/mac80211/debugfs_sta.h b/net/mac80211/debugfs_sta.h
index 574a1cd54b96..8b608903259f 100644
--- a/net/mac80211/debugfs_sta.h
+++ b/net/mac80211/debugfs_sta.h
@@ -1,6 +1,8 @@
 #ifndef __MAC80211_DEBUGFS_STA_H
 #define __MAC80211_DEBUGFS_STA_H
 
+#include "sta_info.h"
+
 #ifdef CONFIG_MAC80211_DEBUGFS
 void ieee80211_sta_debugfs_add(struct sta_info *sta);
 void ieee80211_sta_debugfs_remove(struct sta_info *sta);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 72ecbf7bf962..8e53ce7ed444 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -23,7 +23,7 @@
 #include <linux/spinlock.h>
 #include <linux/etherdevice.h>
 #include <net/wireless.h>
-#include "ieee80211_key.h"
+#include "key.h"
 #include "sta_info.h"
 
 /* ieee80211.o internal definitions, etc. These are not included into
@@ -35,9 +35,9 @@
 
 #define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
 
-struct ieee80211_local;
+#define IEEE80211_FC(type, subtype) cpu_to_le16(type | subtype)
 
-#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
+struct ieee80211_local;
 
 /* Maximum number of broadcast/multicast frames to buffer when some of the
  * associated stations are using power saving. */
@@ -73,14 +73,14 @@ struct ieee80211_fragment_entry {
 struct ieee80211_sta_bss {
 	struct list_head list;
 	struct ieee80211_sta_bss *hnext;
+	size_t ssid_len;
+
 	atomic_t users;
 
 	u8 bssid[ETH_ALEN];
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
-	size_t ssid_len;
 	u16 capability; /* host byte order */
-	int hw_mode;
-	int channel;
+	enum ieee80211_band band;
 	int freq;
 	int rssi, signal, noise;
 	u8 *wpa_ie;
@@ -91,13 +91,18 @@ struct ieee80211_sta_bss {
 	size_t wmm_ie_len;
 	u8 *ht_ie;
 	size_t ht_ie_len;
+#ifdef CONFIG_MAC80211_MESH
+	u8 *mesh_id;
+	size_t mesh_id_len;
+	u8 *mesh_cfg;
+#endif
 #define IEEE80211_MAX_SUPP_RATES 32
 	u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
 	size_t supp_rates_len;
-	int beacon_int;
 	u64 timestamp;
+	int beacon_int;
 
-	int probe_resp;
+	bool probe_resp;
 	unsigned long last_update;
 
 	/* during assocation, we save an ERP value from a probe response so
@@ -108,56 +113,98 @@ struct ieee80211_sta_bss {
 	u8 erp_value;
 };
 
+static inline u8 *bss_mesh_cfg(struct ieee80211_sta_bss *bss)
+{
+#ifdef CONFIG_MAC80211_MESH
+	return bss->mesh_cfg;
+#endif
+	return NULL;
+}
 
-typedef enum {
-	TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
-} ieee80211_txrx_result;
+static inline u8 *bss_mesh_id(struct ieee80211_sta_bss *bss)
+{
+#ifdef CONFIG_MAC80211_MESH
+	return bss->mesh_id;
+#endif
+	return NULL;
+}
 
-/* flags used in struct ieee80211_txrx_data.flags */
-/* whether the MSDU was fragmented */
-#define IEEE80211_TXRXD_FRAGMENTED		BIT(0)
-#define IEEE80211_TXRXD_TXUNICAST		BIT(1)
-#define IEEE80211_TXRXD_TXPS_BUFFERED		BIT(2)
-#define IEEE80211_TXRXD_TXPROBE_LAST_FRAG	BIT(3)
-#define IEEE80211_TXRXD_RXIN_SCAN		BIT(4)
-/* frame is destined to interface currently processed (incl. multicast frames) */
-#define IEEE80211_TXRXD_RXRA_MATCH		BIT(5)
-#define IEEE80211_TXRXD_TX_INJECTED		BIT(6)
-#define IEEE80211_TXRXD_RX_AMSDU		BIT(7)
-struct ieee80211_txrx_data {
+static inline u8 bss_mesh_id_len(struct ieee80211_sta_bss *bss)
+{
+#ifdef CONFIG_MAC80211_MESH
+	return bss->mesh_id_len;
+#endif
+	return 0;
+}
+
+
+typedef unsigned __bitwise__ ieee80211_tx_result;
+#define TX_CONTINUE	((__force ieee80211_tx_result) 0u)
+#define TX_DROP		((__force ieee80211_tx_result) 1u)
+#define TX_QUEUED	((__force ieee80211_tx_result) 2u)
+
+#define IEEE80211_TX_FRAGMENTED		BIT(0)
+#define IEEE80211_TX_UNICAST		BIT(1)
+#define IEEE80211_TX_PS_BUFFERED	BIT(2)
+#define IEEE80211_TX_PROBE_LAST_FRAG	BIT(3)
+#define IEEE80211_TX_INJECTED		BIT(4)
+
+struct ieee80211_tx_data {
 	struct sk_buff *skb;
 	struct net_device *dev;
 	struct ieee80211_local *local;
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
+	struct ieee80211_key *key;
+
+	struct ieee80211_tx_control *control;
+	struct ieee80211_channel *channel;
+	struct ieee80211_rate *rate;
+	/* use this rate (if set) for last fragment; rate can
+	 * be set to lower rate for the first fragments, e.g.,
+	 * when using CTS protection with IEEE 802.11g. */
+	struct ieee80211_rate *last_frag_rate;
+
+	/* Extra fragments (in addition to the first fragment
+	 * in skb) */
+	struct sk_buff **extra_frag;
+	int num_extra_frag;
+
 	u16 fc, ethertype;
+	unsigned int flags;
+};
+
+
+typedef unsigned __bitwise__ ieee80211_rx_result;
+#define RX_CONTINUE		((__force ieee80211_rx_result) 0u)
+#define RX_DROP_UNUSABLE	((__force ieee80211_rx_result) 1u)
+#define RX_DROP_MONITOR		((__force ieee80211_rx_result) 2u)
+#define RX_QUEUED		((__force ieee80211_rx_result) 3u)
+
+#define IEEE80211_RX_IN_SCAN		BIT(0)
+/* frame is destined to interface currently processed (incl. multicast frames) */
+#define IEEE80211_RX_RA_MATCH		BIT(1)
+#define IEEE80211_RX_AMSDU		BIT(2)
+#define IEEE80211_RX_CMNTR_REPORTED	BIT(3)
+#define IEEE80211_RX_FRAGMENTED		BIT(4)
+
+struct ieee80211_rx_data {
+	struct sk_buff *skb;
+	struct net_device *dev;
+	struct ieee80211_local *local;
+	struct ieee80211_sub_if_data *sdata;
+	struct sta_info *sta;
 	struct ieee80211_key *key;
+	struct ieee80211_rx_status *status;
+	struct ieee80211_rate *rate;
+
+	u16 fc, ethertype;
 	unsigned int flags;
-	union {
-		struct {
-			struct ieee80211_tx_control *control;
-			struct ieee80211_hw_mode *mode;
-			struct ieee80211_rate *rate;
-			/* use this rate (if set) for last fragment; rate can
-			 * be set to lower rate for the first fragments, e.g.,
-			 * when using CTS protection with IEEE 802.11g. */
-			struct ieee80211_rate *last_frag_rate;
-			int last_frag_hwrate;
-
-			/* Extra fragments (in addition to the first fragment
-			 * in skb) */
-			int num_extra_frag;
-			struct sk_buff **extra_frag;
-		} tx;
-		struct {
-			struct ieee80211_rx_status *status;
-			int sent_ps_buffered;
-			int queue;
-			int load;
-			u32 tkip_iv32;
-			u16 tkip_iv16;
-		} rx;
-	} u;
+	int sent_ps_buffered;
+	int queue;
+	int load;
+	u32 tkip_iv32;
+	u16 tkip_iv16;
 };
 
 /* flags used in struct ieee80211_tx_packet_data.flags */
@@ -165,6 +212,7 @@ struct ieee80211_txrx_data {
 #define IEEE80211_TXPD_DO_NOT_ENCRYPT	BIT(1)
 #define IEEE80211_TXPD_REQUEUE		BIT(2)
 #define IEEE80211_TXPD_EAPOL_FRAME	BIT(3)
+#define IEEE80211_TXPD_AMPDU		BIT(4)
 /* Stored in sk_buff->cb */
 struct ieee80211_tx_packet_data {
 	int ifindex;
@@ -176,20 +224,12 @@ struct ieee80211_tx_packet_data {
 struct ieee80211_tx_stored_packet {
 	struct ieee80211_tx_control control;
 	struct sk_buff *skb;
-	int num_extra_frag;
 	struct sk_buff **extra_frag;
-	int last_frag_rateidx;
-	int last_frag_hwrate;
 	struct ieee80211_rate *last_frag_rate;
+	int num_extra_frag;
 	unsigned int last_frag_rate_ctrl_probe;
 };
 
-typedef ieee80211_txrx_result (*ieee80211_tx_handler)
-(struct ieee80211_txrx_data *tx);
-
-typedef ieee80211_txrx_result (*ieee80211_rx_handler)
-(struct ieee80211_txrx_data *rx);
-
 struct beacon_data {
 	u8 *head, *tail;
 	int head_len, tail_len;
@@ -206,10 +246,10 @@ struct ieee80211_if_ap {
 
 	/* yes, this looks ugly, but guarantees that we can later use
 	 * bitmap_empty :)
-	 * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
+	 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
 	u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
-	atomic_t num_sta_ps; /* number of stations in PS mode */
 	struct sk_buff_head ps_bc_buf;
+	atomic_t num_sta_ps; /* number of stations in PS mode */
 	int dtim_count;
 	int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
 	int max_ratectrl_rateidx; /* max TX rateidx for rate control */
@@ -217,8 +257,8 @@ struct ieee80211_if_ap {
 };
 
 struct ieee80211_if_wds {
-	u8 remote_addr[ETH_ALEN];
 	struct sta_info *sta;
+	u8 remote_addr[ETH_ALEN];
 };
 
 struct ieee80211_if_vlan {
@@ -226,6 +266,41 @@ struct ieee80211_if_vlan {
 	struct list_head list;
 };
 
+struct mesh_stats {
+	__u32 fwded_frames;		/* Mesh forwarded frames */
+	__u32 dropped_frames_ttl;	/* Not transmitted since mesh_ttl == 0*/
+	__u32 dropped_frames_no_route;	/* Not transmitted, no route found */
+	atomic_t estab_plinks;
+};
+
+#define PREQ_Q_F_START		0x1
+#define PREQ_Q_F_REFRESH	0x2
+struct mesh_preq_queue {
+	struct list_head list;
+	u8 dst[ETH_ALEN];
+	u8 flags;
+};
+
+struct mesh_config {
+	/* Timeouts in ms */
+	/* Mesh plink management parameters */
+	u16 dot11MeshRetryTimeout;
+	u16 dot11MeshConfirmTimeout;
+	u16 dot11MeshHoldingTimeout;
+	u16 dot11MeshMaxPeerLinks;
+	u8  dot11MeshMaxRetries;
+	u8  dot11MeshTTL;
+	bool auto_open_plinks;
+	/* HWMP parameters */
+	u8  dot11MeshHWMPmaxPREQretries;
+	u32 path_refresh_time;
+	u16 min_discovery_timeout;
+	u32 dot11MeshHWMPactivePathTimeout;
+	u16 dot11MeshHWMPpreqMinInterval;
+	u16 dot11MeshHWMPnetDiameterTraversalTime;
+};
+
+
 /* flags used in struct ieee80211_if_sta.flags */
 #define IEEE80211_STA_SSID_SET		BIT(0)
 #define IEEE80211_STA_BSSID_SET		BIT(1)
@@ -241,18 +316,47 @@ struct ieee80211_if_vlan {
 #define IEEE80211_STA_AUTO_CHANNEL_SEL	BIT(12)
 #define IEEE80211_STA_PRIVACY_INVOKED	BIT(13)
 struct ieee80211_if_sta {
-	enum {
-		IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
-		IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
-		IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
-	} state;
 	struct timer_list timer;
 	struct work_struct work;
 	u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
+	enum {
+		IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
+		IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
+		IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED,
+		IEEE80211_MESH_UP
+	} state;
 	size_t ssid_len;
 	u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
 	size_t scan_ssid_len;
+#ifdef CONFIG_MAC80211_MESH
+	struct timer_list mesh_path_timer;
+	u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
+	size_t mesh_id_len;
+	/* Active Path Selection Protocol Identifier */
+	u8 mesh_pp_id[4];
+	/* Active Path Selection Metric Identifier */
+	u8 mesh_pm_id[4];
+	/* Congestion Control Mode Identifier */
+	u8 mesh_cc_id[4];
+	/* Local mesh Destination Sequence Number */
+	u32 dsn;
+	/* Last used PREQ ID */
+	u32 preq_id;
+	atomic_t mpaths;
+	/* Timestamp of last DSN update */
+	unsigned long last_dsn_update;
+	/* Timestamp of last DSN sent */
+	unsigned long last_preq;
+	struct mesh_rmc *rmc;
+	spinlock_t mesh_preq_queue_lock;
+	struct mesh_preq_queue preq_queue;
+	int preq_queue_len;
+	struct mesh_stats mshstats;
+	struct mesh_config mshcfg;
+	u8 mesh_seqnum[3];
+	bool accepting_plinks;
+#endif
 	u16 aid;
 	u16 ap_capab, capab;
 	u8 *extra_ie; /* to be added to the end of AssocReq */
@@ -262,16 +366,18 @@ struct ieee80211_if_sta {
 	u8 *assocreq_ies, *assocresp_ies;
 	size_t assocreq_ies_len, assocresp_ies_len;
 
+	struct sk_buff_head skb_queue;
+
 	int auth_tries, assoc_tries;
 
+	unsigned long request;
+
+	unsigned long last_probe;
+
 	unsigned int flags;
 #define IEEE80211_STA_REQ_SCAN 0
 #define IEEE80211_STA_REQ_AUTH 1
 #define IEEE80211_STA_REQ_RUN  2
-	unsigned long request;
-	struct sk_buff_head skb_queue;
-
-	unsigned long last_probe;
 
 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
@@ -282,16 +388,34 @@ struct ieee80211_if_sta {
 
 	unsigned long ibss_join_req;
 	struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
-	u32 supp_rates_bits;
+	u32 supp_rates_bits[IEEE80211_NUM_BANDS];
 
 	int wmm_last_param_set;
+	int num_beacons; /* number of TXed beacon frames by this STA */
 };
 
+static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta *ifsta,
+						u8 mesh_id_len, u8 *mesh_id)
+{
+#ifdef CONFIG_MAC80211_MESH
+	ifsta->mesh_id_len = mesh_id_len;
+	memcpy(ifsta->mesh_id, mesh_id, mesh_id_len);
+#endif
+}
+
+#ifdef CONFIG_MAC80211_MESH
+#define IEEE80211_IFSTA_MESH_CTR_INC(sta, name)	\
+	do { (sta)->mshstats.name++; } while (0)
+#else
+#define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
+	do { } while (0)
+#endif
 
 /* flags used in struct ieee80211_sub_if_data.flags */
 #define IEEE80211_SDATA_ALLMULTI	BIT(0)
 #define IEEE80211_SDATA_PROMISC		BIT(1)
 #define IEEE80211_SDATA_USERSPACE_MLME	BIT(2)
+#define IEEE80211_SDATA_OPERATING_GMODE	BIT(3)
 struct ieee80211_sub_if_data {
 	struct list_head list;
 
@@ -306,11 +430,11 @@ struct ieee80211_sub_if_data {
 	unsigned int flags;
 
 	int drop_unencrypted;
+
 	/*
-	 * IEEE 802.1X Port access control in effect,
-	 * drop packets to/from unauthorized port
+	 * basic rates of this AP or the AP we're associated to
 	 */
-	int ieee802_1x_pac;
+	u64 basic_rates;
 
 	u16 sequence;
 
@@ -338,6 +462,7 @@ struct ieee80211_sub_if_data {
 		struct ieee80211_if_wds wds;
 		struct ieee80211_if_vlan vlan;
 		struct ieee80211_if_sta sta;
+		u32 mntr_flags;
 	} u;
 	int channel_use;
 	int channel_use_raw;
@@ -348,7 +473,6 @@ struct ieee80211_sub_if_data {
 		struct {
 			struct dentry *channel_use;
 			struct dentry *drop_unencrypted;
-			struct dentry *ieee802_1x_pac;
 			struct dentry *state;
 			struct dentry *bssid;
 			struct dentry *prev_bssid;
@@ -363,11 +487,11 @@ struct ieee80211_sub_if_data {
 			struct dentry *auth_alg;
 			struct dentry *auth_transaction;
 			struct dentry *flags;
+			struct dentry *num_beacons_sta;
 		} sta;
 		struct {
 			struct dentry *channel_use;
 			struct dentry *drop_unencrypted;
-			struct dentry *ieee802_1x_pac;
 			struct dentry *num_sta_ps;
 			struct dentry *dtim_count;
 			struct dentry *num_beacons;
@@ -378,19 +502,46 @@ struct ieee80211_sub_if_data {
 		struct {
 			struct dentry *channel_use;
 			struct dentry *drop_unencrypted;
-			struct dentry *ieee802_1x_pac;
 			struct dentry *peer;
 		} wds;
 		struct {
 			struct dentry *channel_use;
 			struct dentry *drop_unencrypted;
-			struct dentry *ieee802_1x_pac;
 		} vlan;
 		struct {
 			struct dentry *mode;
 		} monitor;
 		struct dentry *default_key;
 	} debugfs;
+
+#ifdef CONFIG_MAC80211_MESH
+	struct dentry *mesh_stats_dir;
+	struct {
+		struct dentry *fwded_frames;
+		struct dentry *dropped_frames_ttl;
+		struct dentry *dropped_frames_no_route;
+		struct dentry *estab_plinks;
+		struct timer_list mesh_path_timer;
+	} mesh_stats;
+
+	struct dentry *mesh_config_dir;
+	struct {
+		struct dentry *dot11MeshRetryTimeout;
+		struct dentry *dot11MeshConfirmTimeout;
+		struct dentry *dot11MeshHoldingTimeout;
+		struct dentry *dot11MeshMaxRetries;
+		struct dentry *dot11MeshTTL;
+		struct dentry *auto_open_plinks;
+		struct dentry *dot11MeshMaxPeerLinks;
+		struct dentry *dot11MeshHWMPactivePathTimeout;
+		struct dentry *dot11MeshHWMPpreqMinInterval;
+		struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
+		struct dentry *dot11MeshHWMPmaxPREQretries;
+		struct dentry *path_refresh_time;
+		struct dentry *min_discovery_timeout;
+	} mesh_config;
+#endif
+
 #endif
 	/* must be last, dynamically sized area in this! */
 	struct ieee80211_vif vif;
@@ -407,6 +558,8 @@ struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
 enum {
 	IEEE80211_RX_MSG	= 1,
 	IEEE80211_TX_STATUS_MSG	= 2,
+	IEEE80211_DELBA_MSG	= 3,
+	IEEE80211_ADDBA_MSG	= 4,
 };
 
 struct ieee80211_local {
@@ -417,15 +570,15 @@ struct ieee80211_local {
 
 	const struct ieee80211_ops *ops;
 
-	/* List of registered struct ieee80211_hw_mode */
-	struct list_head modes_list;
-
 	struct net_device *mdev; /* wmaster# - "master" 802.11 device */
 	int open_count;
-	int monitors;
+	int monitors, cooked_mntrs;
+	/* number of interfaces with corresponding FIF_ flags */
+	int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
 	unsigned int filter_flags; /* FIF_* */
 	struct iw_statistics wstats;
 	u8 wstats_flags;
+	bool tim_in_locked_section; /* see ieee80211_beacon_get() */
 	int tx_headroom; /* required headroom for hardware/radiotap */
 
 	enum {
@@ -443,15 +596,22 @@ struct ieee80211_local {
 	struct sk_buff_head skb_queue;
 	struct sk_buff_head skb_queue_unreliable;
 
-	/* Station data structures */
-	rwlock_t sta_lock; /* protects STA data structures */
-	int num_sta; /* number of stations in sta_list */
+	/* Station data */
+	/*
+	 * The lock only protects the list, hash, timer and counter
+	 * against manipulation, reads are done in RCU. Additionally,
+	 * the lock protects each BSS's TIM bitmap.
+	 */
+	spinlock_t sta_lock;
+	unsigned long num_sta;
 	struct list_head sta_list;
+	struct list_head sta_flush_list;
+	struct work_struct sta_flush_work;
 	struct sta_info *sta_hash[STA_HASH_SIZE];
 	struct timer_list sta_cleanup;
 
-	unsigned long state[NUM_TX_DATA_QUEUES];
-	struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
+	unsigned long state[NUM_TX_DATA_QUEUES_AMPDU];
+	struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES_AMPDU];
 	struct tasklet_struct tx_pending_tasklet;
 
 	/* number of interfaces with corresponding IFF_ flags */
@@ -459,11 +619,6 @@ struct ieee80211_local {
 
 	struct rate_control_ref *rate_ctrl;
 
-	/* Supported and basic rate filters for different modes. These are
-	 * pointers to -1 terminated lists and rates in 100 kbps units. */
-	int *supp_rates[NUM_IEEE80211_MODES];
-	int *basic_rates[NUM_IEEE80211_MODES];
-
 	int rts_threshold;
 	int fragmentation_threshold;
 	int short_retry_limit; /* dot11ShortRetryLimit */
@@ -477,21 +632,25 @@ struct ieee80211_local {
 			     * deliver multicast frames both back to wireless
 			     * media and to the local net stack */
 
-	ieee80211_rx_handler *rx_pre_handlers;
-	ieee80211_rx_handler *rx_handlers;
-	ieee80211_tx_handler *tx_handlers;
-
 	struct list_head interfaces;
 
+	/*
+	 * Key lock, protects sdata's key_list and sta_info's
+	 * key pointers (write access, they're RCU.)
+	 */
+	spinlock_t key_lock;
+
+
 	bool sta_sw_scanning;
 	bool sta_hw_scanning;
 	int scan_channel_idx;
+	enum ieee80211_band scan_band;
+
 	enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
 	unsigned long last_scan_completed;
 	struct delayed_work scan_work;
 	struct net_device *scan_dev;
 	struct ieee80211_channel *oper_channel, *scan_channel;
-	struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
 	u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
 	size_t scan_ssid_len;
 	struct list_head sta_bss_list;
@@ -560,14 +719,8 @@ struct ieee80211_local {
 	int wifi_wme_noack_test;
 	unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
 
-	unsigned int enabled_modes; /* bitfield of allowed modes;
-				      * (1 << MODE_*) */
-	unsigned int hw_modes; /* bitfield of supported hardware modes;
-				* (1 << MODE_*) */
-
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct local_debugfsdentries {
-		struct dentry *channel;
 		struct dentry *frequency;
 		struct dentry *antenna_sel_tx;
 		struct dentry *antenna_sel_rx;
@@ -577,9 +730,7 @@ struct ieee80211_local {
 		struct dentry *short_retry_limit;
 		struct dentry *long_retry_limit;
 		struct dentry *total_ps_buffered;
-		struct dentry *mode;
 		struct dentry *wep_iv;
-		struct dentry *modes;
 		struct dentry *statistics;
 		struct local_debugfsdentries_statsdentries {
 			struct dentry *transmitted_fragment_count;
@@ -627,6 +778,63 @@ struct ieee80211_local {
 #endif
 };
 
+/* this struct represents 802.11n's RA/TID combination */
+struct ieee80211_ra_tid {
+	u8 ra[ETH_ALEN];
+	u16 tid;
+};
+
+/* Parsed Information Elements */
+struct ieee802_11_elems {
+	/* pointers to IEs */
+	u8 *ssid;
+	u8 *supp_rates;
+	u8 *fh_params;
+	u8 *ds_params;
+	u8 *cf_params;
+	u8 *tim;
+	u8 *ibss_params;
+	u8 *challenge;
+	u8 *wpa;
+	u8 *rsn;
+	u8 *erp_info;
+	u8 *ext_supp_rates;
+	u8 *wmm_info;
+	u8 *wmm_param;
+	u8 *ht_cap_elem;
+	u8 *ht_info_elem;
+	u8 *mesh_config;
+	u8 *mesh_id;
+	u8 *peer_link;
+	u8 *preq;
+	u8 *prep;
+	u8 *perr;
+
+	/* length of them, respectively */
+	u8 ssid_len;
+	u8 supp_rates_len;
+	u8 fh_params_len;
+	u8 ds_params_len;
+	u8 cf_params_len;
+	u8 tim_len;
+	u8 ibss_params_len;
+	u8 challenge_len;
+	u8 wpa_len;
+	u8 rsn_len;
+	u8 erp_info_len;
+	u8 ext_supp_rates_len;
+	u8 wmm_info_len;
+	u8 wmm_param_len;
+	u8 ht_cap_elem_len;
+	u8 ht_info_elem_len;
+	u8 mesh_config_len;
+	u8 mesh_id_len;
+	u8 peer_link_len;
+	u8 preq_len;
+	u8 prep_len;
+	u8 perr_len;
+};
+
 static inline struct ieee80211_local *hw_to_local(
 	struct ieee80211_hw *hw)
 {
@@ -650,57 +858,6 @@ struct sta_attribute {
 	ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
 };
 
-static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
-{
-	/*
-	 * This format has been mandated by the IEEE specifications,
-	 * so this line may not be changed to use the __set_bit() format.
-	 */
-	bss->tim[aid / 8] |= (1 << (aid % 8));
-}
-
-static inline void bss_tim_set(struct ieee80211_local *local,
-			       struct ieee80211_if_ap *bss, u16 aid)
-{
-	read_lock_bh(&local->sta_lock);
-	__bss_tim_set(bss, aid);
-	read_unlock_bh(&local->sta_lock);
-}
-
-static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
-{
-	/*
-	 * This format has been mandated by the IEEE specifications,
-	 * so this line may not be changed to use the __clear_bit() format.
-	 */
-	bss->tim[aid / 8] &= ~(1 << (aid % 8));
-}
-
-static inline void bss_tim_clear(struct ieee80211_local *local,
-				 struct ieee80211_if_ap *bss, u16 aid)
-{
-	read_lock_bh(&local->sta_lock);
-	__bss_tim_clear(bss, aid);
-	read_unlock_bh(&local->sta_lock);
-}
-
-/**
- * ieee80211_is_erp_rate - Check if a rate is an ERP rate
- * @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
- * @rate: Transmission rate to check, in 100 kbps
- *
- * Check if a given rate is an Extended Rate PHY (ERP) rate.
- */
-static inline int ieee80211_is_erp_rate(int phymode, int rate)
-{
-	if (phymode == MODE_IEEE80211G) {
-		if (rate != 10 && rate != 20 &&
-		    rate != 55 && rate != 110)
-			return 1;
-	}
-	return 0;
-}
-
 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
 {
 	return compare_ether_addr(raddr, addr) == 0 ||
@@ -712,16 +869,11 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
 int ieee80211_hw_config(struct ieee80211_local *local);
 int ieee80211_if_config(struct net_device *dev);
 int ieee80211_if_config_beacon(struct net_device *dev);
-void ieee80211_prepare_rates(struct ieee80211_local *local,
-			     struct ieee80211_hw_mode *mode);
-void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
-int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
+void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
 void ieee80211_if_setup(struct net_device *dev);
-struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
-					  int phymode, int hwrate);
-int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
-			   struct ieee80211_ht_info *req_ht_cap,
-			   struct ieee80211_ht_bss_info *req_bss_cap);
+u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
+			struct ieee80211_ht_info *req_ht_cap,
+			struct ieee80211_ht_bss_info *req_bss_cap);
 
 /* ieee80211_ioctl.c */
 extern const struct iw_handler_def ieee80211_iw_handler_def;
@@ -747,9 +899,7 @@ extern const struct iw_handler_def ieee80211_iw_handler_def;
 
 
 /* ieee80211_ioctl.c */
-int ieee80211_set_compression(struct ieee80211_local *local,
-			      struct net_device *dev, struct sta_info *sta);
-int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
+int ieee80211_set_freq(struct ieee80211_local *local, int freq);
 /* ieee80211_sta.c */
 void ieee80211_sta_timer(unsigned long data);
 void ieee80211_sta_work(struct work_struct *work);
@@ -763,9 +913,9 @@ int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
 void ieee80211_sta_req_auth(struct net_device *dev,
 			    struct ieee80211_if_sta *ifsta);
 int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
-ieee80211_txrx_result ieee80211_sta_rx_scan(struct net_device *dev,
-					    struct sk_buff *skb,
-			   struct ieee80211_rx_status *rx_status);
+ieee80211_rx_result ieee80211_sta_rx_scan(
+	struct net_device *dev, struct sk_buff *skb,
+	struct ieee80211_rx_status *rx_status);
 void ieee80211_rx_bss_list_init(struct net_device *dev);
 void ieee80211_rx_bss_list_deinit(struct net_device *dev);
 int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
@@ -782,12 +932,36 @@ int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
 			struct ieee80211_ht_addt_info *ht_add_info_ie,
 			struct ieee80211_ht_bss_info *bss_info);
+void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
+				  u16 tid, u8 dialog_token, u16 start_seq_num,
+				  u16 agg_size, u16 timeout);
+void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
+				u16 initiator, u16 reason_code);
+
 void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
 				u16 tid, u16 initiator, u16 reason);
 void sta_rx_agg_session_timer_expired(unsigned long data);
+void sta_addba_resp_timer_expired(unsigned long data);
+void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr);
+u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
+			    struct ieee802_11_elems *elems,
+			    enum ieee80211_band band);
+void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
+		int encrypt);
+void ieee802_11_parse_elems(u8 *start, size_t len,
+				   struct ieee802_11_elems *elems);
+
+#ifdef CONFIG_MAC80211_MESH
+void ieee80211_start_mesh(struct net_device *dev);
+#else
+static inline void ieee80211_start_mesh(struct net_device *dev)
+{}
+#endif
+
 /* ieee80211_iface.c */
 int ieee80211_if_add(struct net_device *dev, const char *name,
-		     struct net_device **new_dev, int type);
+		     struct net_device **new_dev, int type,
+		     struct vif_params *params);
 void ieee80211_if_set_type(struct net_device *dev, int type);
 void ieee80211_if_reinit(struct net_device *dev);
 void __ieee80211_if_del(struct ieee80211_local *local,
@@ -796,16 +970,7 @@ int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
 void ieee80211_if_free(struct net_device *dev);
 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
 
-/* regdomain.c */
-void ieee80211_regdomain_init(void);
-void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode);
-
-/* rx handling */
-extern ieee80211_rx_handler ieee80211_rx_pre_handlers[];
-extern ieee80211_rx_handler ieee80211_rx_handlers[];
-
 /* tx handling */
-extern ieee80211_tx_handler ieee80211_tx_handlers[];
 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
 void ieee80211_tx_pending(unsigned long data);
 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
diff --git a/net/mac80211/ieee80211_iface.c b/net/mac80211/iface.c
index 92f1eb2da311..80954a512185 100644
--- a/net/mac80211/ieee80211_iface.c
+++ b/net/mac80211/iface.c
@@ -15,6 +15,7 @@
 #include "ieee80211_i.h"
 #include "sta_info.h"
 #include "debugfs_netdev.h"
+#include "mesh.h"
 
 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
 {
@@ -39,7 +40,8 @@ static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata)
 
 /* Must be called with rtnl lock held. */
 int ieee80211_if_add(struct net_device *dev, const char *name,
-		     struct net_device **new_dev, int type)
+		     struct net_device **new_dev, int type,
+		     struct vif_params *params)
 {
 	struct net_device *ndev;
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
@@ -78,6 +80,12 @@ int ieee80211_if_add(struct net_device *dev, const char *name,
 	ieee80211_debugfs_add_netdev(sdata);
 	ieee80211_if_set_type(ndev, type);
 
+	if (ieee80211_vif_is_mesh(&sdata->vif) &&
+	    params && params->mesh_id_len)
+		ieee80211_if_sta_set_mesh_id(&sdata->u.sta,
+					     params->mesh_id_len,
+					     params->mesh_id);
+
 	/* we're under RTNL so all this is fine */
 	if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) {
 		__ieee80211_if_del(local, sdata);
@@ -118,6 +126,8 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
 	sdata->bss = NULL;
 	sdata->vif.type = type;
 
+	sdata->basic_rates = 0;
+
 	switch (type) {
 	case IEEE80211_IF_TYPE_WDS:
 		/* nothing special */
@@ -132,6 +142,7 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
 		sdata->bss = &sdata->u.ap;
 		INIT_LIST_HEAD(&sdata->u.ap.vlans);
 		break;
+	case IEEE80211_IF_TYPE_MESH_POINT:
 	case IEEE80211_IF_TYPE_STA:
 	case IEEE80211_IF_TYPE_IBSS: {
 		struct ieee80211_sub_if_data *msdata;
@@ -153,15 +164,20 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
 
 		msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
 		sdata->bss = &msdata->u.ap;
+
+		if (ieee80211_vif_is_mesh(&sdata->vif))
+			ieee80211_mesh_init_sdata(sdata);
 		break;
 	}
 	case IEEE80211_IF_TYPE_MNTR:
 		dev->type = ARPHRD_IEEE80211_RADIOTAP;
 		dev->hard_start_xmit = ieee80211_monitor_start_xmit;
+		sdata->u.mntr_flags = MONITOR_FLAG_CONTROL |
+				      MONITOR_FLAG_OTHER_BSS;
 		break;
 	default:
 		printk(KERN_WARNING "%s: %s: Unknown interface type 0x%x",
-		       dev->name, __FUNCTION__, type);
+		       dev->name, __func__, type);
 	}
 	ieee80211_debugfs_change_if_type(sdata, oldtype);
 }
@@ -171,8 +187,8 @@ void ieee80211_if_reinit(struct net_device *dev)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct sta_info *sta;
 	struct sk_buff *skb;
+	int flushed;
 
 	ASSERT_RTNL();
 
@@ -180,6 +196,10 @@ void ieee80211_if_reinit(struct net_device *dev)
 
 	ieee80211_if_sdata_deinit(sdata);
 
+	/* Need to handle mesh specially to allow eliding the function call */
+	if (ieee80211_vif_is_mesh(&sdata->vif))
+		mesh_rmc_free(dev);
+
 	switch (sdata->vif.type) {
 	case IEEE80211_IF_TYPE_INVALID:
 		/* cannot happen */
@@ -189,6 +209,7 @@ void ieee80211_if_reinit(struct net_device *dev)
 		/* Remove all virtual interfaces that use this BSS
 		 * as their sdata->bss */
 		struct ieee80211_sub_if_data *tsdata, *n;
+		struct beacon_data *beacon;
 
 		list_for_each_entry_safe(tsdata, n, &local->interfaces, list) {
 			if (tsdata != sdata && tsdata->bss == &sdata->u.ap) {
@@ -206,7 +227,10 @@ void ieee80211_if_reinit(struct net_device *dev)
 			}
 		}
 
-		kfree(sdata->u.ap.beacon);
+		beacon = sdata->u.ap.beacon;
+		rcu_assign_pointer(sdata->u.ap.beacon, NULL);
+		synchronize_rcu();
+		kfree(beacon);
 
 		while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
 			local->total_ps_buffered--;
@@ -216,17 +240,9 @@ void ieee80211_if_reinit(struct net_device *dev)
 		break;
 	}
 	case IEEE80211_IF_TYPE_WDS:
-		sta = sta_info_get(local, sdata->u.wds.remote_addr);
-		if (sta) {
-			sta_info_free(sta);
-			sta_info_put(sta);
-		} else {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-			printk(KERN_DEBUG "%s: Someone had deleted my STA "
-			       "entry for the WDS link\n", dev->name);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-		}
+		/* nothing to do */
 		break;
+	case IEEE80211_IF_TYPE_MESH_POINT:
 	case IEEE80211_IF_TYPE_STA:
 	case IEEE80211_IF_TYPE_IBSS:
 		kfree(sdata->u.sta.extra_ie);
@@ -249,8 +265,8 @@ void ieee80211_if_reinit(struct net_device *dev)
 		break;
 	}
 
-	/* remove all STAs that are bound to this virtual interface */
-	sta_info_flush(local, dev);
+	flushed = sta_info_flush(local, sdata);
+	WARN_ON(flushed);
 
 	memset(&sdata->u, 0, sizeof(sdata->u));
 	ieee80211_if_sdata_init(sdata);
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index ed57fb8e82fc..150d66dbda9d 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -2,7 +2,7 @@
  * Copyright 2002-2005, Instant802 Networks, Inc.
  * Copyright 2005-2006, Devicescape Software, Inc.
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
- * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2007-2008	Johannes Berg <johannes@sipsolutions.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -13,14 +13,15 @@
 #include <linux/etherdevice.h>
 #include <linux/list.h>
 #include <linux/rcupdate.h>
+#include <linux/rtnetlink.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
 #include "debugfs_key.h"
 #include "aes_ccm.h"
 
 
-/*
- * Key handling basics
+/**
+ * DOC: Key handling basics
  *
  * Key handling in mac80211 is done based on per-interface (sub_if_data)
  * keys and per-station keys. Since each station belongs to an interface,
@@ -32,13 +33,81 @@
  * There is currently no way of knowing this except by looking into
  * debugfs.
  *
- * All operations here are called under RTNL so no extra locking is
- * required.
+ * All key operations are protected internally so you can call them at
+ * any time.
+ *
+ * Within mac80211, key references are, just as STA structure references,
+ * protected by RCU. Note, however, that some things are unprotected,
+ * namely the key->sta dereferences within the hardware acceleration
+ * functions. This means that sta_info_destroy() must flush the key todo
+ * list.
+ *
+ * All the direct key list manipulation functions must not sleep because
+ * they can operate on STA info structs that are protected by RCU.
  */
 
 static const u8 bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
 static const u8 zero_addr[ETH_ALEN];
 
+/* key mutex: used to synchronise todo runners */
+static DEFINE_MUTEX(key_mutex);
+static DEFINE_SPINLOCK(todo_lock);
+static LIST_HEAD(todo_list);
+
+static void key_todo(struct work_struct *work)
+{
+	ieee80211_key_todo();
+}
+
+static DECLARE_WORK(todo_work, key_todo);
+
+/**
+ * add_todo - add todo item for a key
+ *
+ * @key: key to add to do item for
+ * @flag: todo flag(s)
+ */
+static void add_todo(struct ieee80211_key *key, u32 flag)
+{
+	if (!key)
+		return;
+
+	spin_lock(&todo_lock);
+	key->flags |= flag;
+	/*
+	 * Remove again if already on the list so that we move it to the end.
+	 */
+	if (!list_empty(&key->todo))
+		list_del(&key->todo);
+	list_add_tail(&key->todo, &todo_list);
+	schedule_work(&todo_work);
+	spin_unlock(&todo_lock);
+}
+
+/**
+ * ieee80211_key_lock - lock the mac80211 key operation lock
+ *
+ * This locks the (global) mac80211 key operation lock, all
+ * key operations must be done under this lock.
+ */
+static void ieee80211_key_lock(void)
+{
+	mutex_lock(&key_mutex);
+}
+
+/**
+ * ieee80211_key_unlock - unlock the mac80211 key operation lock
+ */
+static void ieee80211_key_unlock(void)
+{
+	mutex_unlock(&key_mutex);
+}
+
+static void assert_key_lock(void)
+{
+	WARN_ON(!mutex_is_locked(&key_mutex));
+}
+
 static const u8 *get_mac_for_key(struct ieee80211_key *key)
 {
 	const u8 *addr = bcast_addr;
@@ -65,6 +134,9 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 	int ret;
 	DECLARE_MAC_BUF(mac);
 
+	assert_key_lock();
+	might_sleep();
+
 	if (!key->local->ops->set_key)
 		return;
 
@@ -74,8 +146,11 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 				       key->sdata->dev->dev_addr, addr,
 				       &key->conf);
 
-	if (!ret)
+	if (!ret) {
+		spin_lock(&todo_lock);
 		key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
+		spin_unlock(&todo_lock);
+	}
 
 	if (ret && ret != -ENOSPC && ret != -EOPNOTSUPP)
 		printk(KERN_ERR "mac80211-%s: failed to set key "
@@ -90,11 +165,18 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
 	int ret;
 	DECLARE_MAC_BUF(mac);
 
-	if (!key->local->ops->set_key)
+	assert_key_lock();
+	might_sleep();
+
+	if (!key || !key->local->ops->set_key)
 		return;
 
-	if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
+	spin_lock(&todo_lock);
+	if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
+		spin_unlock(&todo_lock);
 		return;
+	}
+	spin_unlock(&todo_lock);
 
 	addr = get_mac_for_key(key);
 
@@ -108,12 +190,75 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
 		       wiphy_name(key->local->hw.wiphy),
 		       key->conf.keyidx, print_mac(mac, addr), ret);
 
+	spin_lock(&todo_lock);
 	key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
+	spin_unlock(&todo_lock);
 }
 
-struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
-					  struct sta_info *sta,
-					  enum ieee80211_key_alg alg,
+static void __ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata,
+					int idx)
+{
+	struct ieee80211_key *key = NULL;
+
+	if (idx >= 0 && idx < NUM_DEFAULT_KEYS)
+		key = sdata->keys[idx];
+
+	rcu_assign_pointer(sdata->default_key, key);
+
+	if (key)
+		add_todo(key, KEY_FLAG_TODO_DEFKEY);
+}
+
+void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&sdata->local->key_lock, flags);
+	__ieee80211_set_default_key(sdata, idx);
+	spin_unlock_irqrestore(&sdata->local->key_lock, flags);
+}
+
+
+static void __ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
+				    struct sta_info *sta,
+				    struct ieee80211_key *old,
+				    struct ieee80211_key *new)
+{
+	int idx, defkey;
+
+	if (new)
+		list_add(&new->list, &sdata->key_list);
+
+	if (sta) {
+		rcu_assign_pointer(sta->key, new);
+	} else {
+		WARN_ON(new && old && new->conf.keyidx != old->conf.keyidx);
+
+		if (old)
+			idx = old->conf.keyidx;
+		else
+			idx = new->conf.keyidx;
+
+		defkey = old && sdata->default_key == old;
+
+		if (defkey && !new)
+			__ieee80211_set_default_key(sdata, -1);
+
+		rcu_assign_pointer(sdata->keys[idx], new);
+		if (defkey && new)
+			__ieee80211_set_default_key(sdata, new->conf.keyidx);
+	}
+
+	if (old) {
+		/*
+		 * We'll use an empty list to indicate that the key
+		 * has already been removed.
+		 */
+		list_del_init(&old->list);
+	}
+}
+
+struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
 					  int idx,
 					  size_t key_len,
 					  const u8 *key_data)
@@ -137,10 +282,8 @@ struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
 	key->conf.keyidx = idx;
 	key->conf.keylen = key_len;
 	memcpy(key->conf.key, key_data, key_len);
-
-	key->local = sdata->local;
-	key->sdata = sdata;
-	key->sta = sta;
+	INIT_LIST_HEAD(&key->list);
+	INIT_LIST_HEAD(&key->todo);
 
 	if (alg == ALG_CCMP) {
 		/*
@@ -149,22 +292,31 @@ struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
 		 */
 		key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(key_data);
 		if (!key->u.ccmp.tfm) {
-			ieee80211_key_free(key);
+			kfree(key);
 			return NULL;
 		}
 	}
 
-	ieee80211_debugfs_key_add(key->local, key);
+	return key;
+}
 
-	/* remove key first */
-	if (sta)
-		ieee80211_key_free(sta->key);
-	else
-		ieee80211_key_free(sdata->keys[idx]);
+void ieee80211_key_link(struct ieee80211_key *key,
+			struct ieee80211_sub_if_data *sdata,
+			struct sta_info *sta)
+{
+	struct ieee80211_key *old_key;
+	unsigned long flags;
+	int idx;
 
-	if (sta) {
-		ieee80211_debugfs_key_sta_link(key, sta);
+	BUG_ON(!sdata);
+	BUG_ON(!key);
 
+	idx = key->conf.keyidx;
+	key->local = sdata->local;
+	key->sdata = sdata;
+	key->sta = sta;
+
+	if (sta) {
 		/*
 		 * some hardware cannot handle TKIP with QoS, so
 		 * we indicate whether QoS could be in use.
@@ -175,105 +327,194 @@ struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
 		if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
 			struct sta_info *ap;
 
+			/*
+			 * We're getting a sta pointer in,
+			 * so must be under RCU read lock.
+			 */
+
 			/* same here, the AP could be using QoS */
 			ap = sta_info_get(key->local, key->sdata->u.sta.bssid);
 			if (ap) {
 				if (ap->flags & WLAN_STA_WME)
 					key->conf.flags |=
 						IEEE80211_KEY_FLAG_WMM_STA;
-				sta_info_put(ap);
 			}
 		}
 	}
 
-	/* enable hwaccel if appropriate */
-	if (netif_running(key->sdata->dev))
-		ieee80211_key_enable_hw_accel(key);
+	spin_lock_irqsave(&sdata->local->key_lock, flags);
 
 	if (sta)
-		rcu_assign_pointer(sta->key, key);
+		old_key = sta->key;
 	else
-		rcu_assign_pointer(sdata->keys[idx], key);
+		old_key = sdata->keys[idx];
 
-	list_add(&key->list, &sdata->key_list);
+	__ieee80211_key_replace(sdata, sta, old_key, key);
 
-	return key;
+	spin_unlock_irqrestore(&sdata->local->key_lock, flags);
+
+	/* free old key later */
+	add_todo(old_key, KEY_FLAG_TODO_DELETE);
+
+	add_todo(key, KEY_FLAG_TODO_ADD_DEBUGFS);
+	if (netif_running(sdata->dev))
+		add_todo(key, KEY_FLAG_TODO_HWACCEL_ADD);
+}
+
+static void __ieee80211_key_free(struct ieee80211_key *key)
+{
+	/*
+	 * Replace key with nothingness if it was ever used.
+	 */
+	if (key->sdata)
+		__ieee80211_key_replace(key->sdata, key->sta,
+					key, NULL);
+
+	add_todo(key, KEY_FLAG_TODO_DELETE);
 }
 
 void ieee80211_key_free(struct ieee80211_key *key)
 {
+	unsigned long flags;
+
 	if (!key)
 		return;
 
-	if (key->sta) {
-		rcu_assign_pointer(key->sta->key, NULL);
-	} else {
-		if (key->sdata->default_key == key)
-			ieee80211_set_default_key(key->sdata, -1);
-		if (key->conf.keyidx >= 0 &&
-		    key->conf.keyidx < NUM_DEFAULT_KEYS)
-			rcu_assign_pointer(key->sdata->keys[key->conf.keyidx],
-					   NULL);
-		else
-			WARN_ON(1);
-	}
+	spin_lock_irqsave(&key->sdata->local->key_lock, flags);
+	__ieee80211_key_free(key);
+	spin_unlock_irqrestore(&key->sdata->local->key_lock, flags);
+}
 
-	/* wait for all key users to complete */
-	synchronize_rcu();
+/*
+ * To be safe against concurrent manipulations of the list (which shouldn't
+ * actually happen) we need to hold the spinlock. But under the spinlock we
+ * can't actually do much, so we defer processing to the todo list. Then run
+ * the todo list to be sure the operation and possibly previously pending
+ * operations are completed.
+ */
+static void ieee80211_todo_for_each_key(struct ieee80211_sub_if_data *sdata,
+					u32 todo_flags)
+{
+	struct ieee80211_key *key;
+	unsigned long flags;
+
+	might_sleep();
+
+	spin_lock_irqsave(&sdata->local->key_lock, flags);
+	list_for_each_entry(key, &sdata->key_list, list)
+		add_todo(key, todo_flags);
+	spin_unlock_irqrestore(&sdata->local->key_lock, flags);
+
+	ieee80211_key_todo();
+}
+
+void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata)
+{
+	ASSERT_RTNL();
+
+	if (WARN_ON(!netif_running(sdata->dev)))
+		return;
+
+	ieee80211_todo_for_each_key(sdata, KEY_FLAG_TODO_HWACCEL_ADD);
+}
+
+void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata)
+{
+	ASSERT_RTNL();
+
+	ieee80211_todo_for_each_key(sdata, KEY_FLAG_TODO_HWACCEL_REMOVE);
+}
+
+static void __ieee80211_key_destroy(struct ieee80211_key *key)
+{
+	if (!key)
+		return;
 
-	/* remove from hwaccel if appropriate */
 	ieee80211_key_disable_hw_accel(key);
 
 	if (key->conf.alg == ALG_CCMP)
 		ieee80211_aes_key_free(key->u.ccmp.tfm);
 	ieee80211_debugfs_key_remove(key);
 
-	list_del(&key->list);
-
 	kfree(key);
 }
 
-void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx)
+static void __ieee80211_key_todo(void)
 {
-	struct ieee80211_key *key = NULL;
+	struct ieee80211_key *key;
+	bool work_done;
+	u32 todoflags;
 
-	if (idx >= 0 && idx < NUM_DEFAULT_KEYS)
-		key = sdata->keys[idx];
+	/*
+	 * NB: sta_info_destroy relies on this!
+	 */
+	synchronize_rcu();
 
-	if (sdata->default_key != key) {
-		ieee80211_debugfs_key_remove_default(sdata);
+	spin_lock(&todo_lock);
+	while (!list_empty(&todo_list)) {
+		key = list_first_entry(&todo_list, struct ieee80211_key, todo);
+		list_del_init(&key->todo);
+		todoflags = key->flags & (KEY_FLAG_TODO_ADD_DEBUGFS |
+					  KEY_FLAG_TODO_DEFKEY |
+					  KEY_FLAG_TODO_HWACCEL_ADD |
+					  KEY_FLAG_TODO_HWACCEL_REMOVE |
+					  KEY_FLAG_TODO_DELETE);
+		key->flags &= ~todoflags;
+		spin_unlock(&todo_lock);
+
+		work_done = false;
+
+		if (todoflags & KEY_FLAG_TODO_ADD_DEBUGFS) {
+			ieee80211_debugfs_key_add(key);
+			work_done = true;
+		}
+		if (todoflags & KEY_FLAG_TODO_DEFKEY) {
+			ieee80211_debugfs_key_remove_default(key->sdata);
+			ieee80211_debugfs_key_add_default(key->sdata);
+			work_done = true;
+		}
+		if (todoflags & KEY_FLAG_TODO_HWACCEL_ADD) {
+			ieee80211_key_enable_hw_accel(key);
+			work_done = true;
+		}
+		if (todoflags & KEY_FLAG_TODO_HWACCEL_REMOVE) {
+			ieee80211_key_disable_hw_accel(key);
+			work_done = true;
+		}
+		if (todoflags & KEY_FLAG_TODO_DELETE) {
+			__ieee80211_key_destroy(key);
+			work_done = true;
+		}
 
-		rcu_assign_pointer(sdata->default_key, key);
+		WARN_ON(!work_done);
 
-		if (sdata->default_key)
-			ieee80211_debugfs_key_add_default(sdata);
+		spin_lock(&todo_lock);
 	}
+	spin_unlock(&todo_lock);
 }
 
-void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata)
+void ieee80211_key_todo(void)
 {
-	struct ieee80211_key *key, *tmp;
-
-	list_for_each_entry_safe(key, tmp, &sdata->key_list, list)
-		ieee80211_key_free(key);
+	ieee80211_key_lock();
+	__ieee80211_key_todo();
+	ieee80211_key_unlock();
 }
 
-void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata)
+void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata)
 {
-	struct ieee80211_key *key;
+	struct ieee80211_key *key, *tmp;
+	unsigned long flags;
 
-	WARN_ON(!netif_running(sdata->dev));
-	if (!netif_running(sdata->dev))
-		return;
+	ieee80211_key_lock();
 
-	list_for_each_entry(key, &sdata->key_list, list)
-		ieee80211_key_enable_hw_accel(key);
-}
+	ieee80211_debugfs_key_remove_default(sdata);
 
-void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_key *key;
+	spin_lock_irqsave(&sdata->local->key_lock, flags);
+	list_for_each_entry_safe(key, tmp, &sdata->key_list, list)
+		__ieee80211_key_free(key);
+	spin_unlock_irqrestore(&sdata->local->key_lock, flags);
 
-	list_for_each_entry(key, &sdata->key_list, list)
-		ieee80211_key_disable_hw_accel(key);
+	__ieee80211_key_todo();
+
+	ieee80211_key_unlock();
 }
diff --git a/net/mac80211/ieee80211_key.h b/net/mac80211/key.h
index fc770e98d47b..f52c3df1fe9a 100644
--- a/net/mac80211/ieee80211_key.h
+++ b/net/mac80211/key.h
@@ -13,6 +13,7 @@
 #include <linux/types.h>
 #include <linux/list.h>
 #include <linux/crypto.h>
+#include <linux/rcupdate.h>
 #include <net/mac80211.h>
 
 /* ALG_TKIP
@@ -45,15 +46,40 @@ struct ieee80211_local;
 struct ieee80211_sub_if_data;
 struct sta_info;
 
-#define KEY_FLAG_UPLOADED_TO_HARDWARE	(1<<0)
+/**
+ * enum ieee80211_internal_key_flags - internal key flags
+ *
+ * @KEY_FLAG_UPLOADED_TO_HARDWARE: Indicates that this key is present
+ *	in the hardware for TX crypto hardware acceleration.
+ * @KEY_FLAG_TODO_DELETE: Key is marked for deletion and will, after an
+ *	RCU grace period, no longer be reachable other than from the
+ *	todo list.
+ * @KEY_FLAG_TODO_HWACCEL_ADD: Key needs to be added to hardware acceleration.
+ * @KEY_FLAG_TODO_HWACCEL_REMOVE: Key needs to be removed from hardware
+ *	acceleration.
+ * @KEY_FLAG_TODO_DEFKEY: Key is default key and debugfs needs to be updated.
+ * @KEY_FLAG_TODO_ADD_DEBUGFS: Key needs to be added to debugfs.
+ */
+enum ieee80211_internal_key_flags {
+	KEY_FLAG_UPLOADED_TO_HARDWARE	= BIT(0),
+	KEY_FLAG_TODO_DELETE		= BIT(1),
+	KEY_FLAG_TODO_HWACCEL_ADD	= BIT(2),
+	KEY_FLAG_TODO_HWACCEL_REMOVE	= BIT(3),
+	KEY_FLAG_TODO_DEFKEY		= BIT(4),
+	KEY_FLAG_TODO_ADD_DEBUGFS	= BIT(5),
+};
 
 struct ieee80211_key {
 	struct ieee80211_local *local;
 	struct ieee80211_sub_if_data *sdata;
 	struct sta_info *sta;
 
+	/* for sdata list */
 	struct list_head list;
+	/* for todo list */
+	struct list_head todo;
 
+	/* protected by todo lock! */
 	unsigned int flags;
 
 	union {
@@ -102,6 +128,7 @@ struct ieee80211_key {
 		struct dentry *replays;
 		struct dentry *key;
 		struct dentry *ifindex;
+		int cnt;
 	} debugfs;
 #endif
 
@@ -112,16 +139,23 @@ struct ieee80211_key {
 	struct ieee80211_key_conf conf;
 };
 
-struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
-					  struct sta_info *sta,
-					  enum ieee80211_key_alg alg,
+struct ieee80211_key *ieee80211_key_alloc(enum ieee80211_key_alg alg,
 					  int idx,
 					  size_t key_len,
 					  const u8 *key_data);
+/*
+ * Insert a key into data structures (sdata, sta if necessary)
+ * to make it used, free old key.
+ */
+void ieee80211_key_link(struct ieee80211_key *key,
+			struct ieee80211_sub_if_data *sdata,
+			struct sta_info *sta);
 void ieee80211_key_free(struct ieee80211_key *key);
 void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx);
 void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata);
 void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata);
 void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata);
 
+void ieee80211_key_todo(void);
+
 #endif /* IEEE80211_KEY_H */
diff --git a/net/mac80211/ieee80211_led.c b/net/mac80211/led.c
index f401484ab6d7..162a643f16b6 100644
--- a/net/mac80211/ieee80211_led.c
+++ b/net/mac80211/led.c
@@ -8,7 +8,7 @@
 
 /* just for IFNAMSIZ */
 #include <linux/if.h>
-#include "ieee80211_led.h"
+#include "led.h"
 
 void ieee80211_led_rx(struct ieee80211_local *local)
 {
diff --git a/net/mac80211/ieee80211_led.h b/net/mac80211/led.h
index 77b1e1ba6039..77b1e1ba6039 100644
--- a/net/mac80211/ieee80211_led.h
+++ b/net/mac80211/led.h
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/main.c
index 8e586390a2ef..e9a978979d38 100644
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/main.c
@@ -25,11 +25,12 @@
 #include <net/cfg80211.h>
 
 #include "ieee80211_i.h"
-#include "ieee80211_rate.h"
+#include "rate.h"
+#include "mesh.h"
 #include "wep.h"
 #include "wme.h"
 #include "aes_ccm.h"
-#include "ieee80211_led.h"
+#include "led.h"
 #include "cfg.h"
 #include "debugfs.h"
 #include "debugfs_netdev.h"
@@ -67,9 +68,19 @@ static void ieee80211_configure_filter(struct ieee80211_local *local)
 		new_flags |= FIF_ALLMULTI;
 
 	if (local->monitors)
-		new_flags |= FIF_CONTROL |
-			     FIF_OTHER_BSS |
-			     FIF_BCN_PRBRESP_PROMISC;
+		new_flags |= FIF_BCN_PRBRESP_PROMISC;
+
+	if (local->fif_fcsfail)
+		new_flags |= FIF_FCSFAIL;
+
+	if (local->fif_plcpfail)
+		new_flags |= FIF_PLCPFAIL;
+
+	if (local->fif_control)
+		new_flags |= FIF_CONTROL;
+
+	if (local->fif_other_bss)
+		new_flags |= FIF_OTHER_BSS;
 
 	changed_flags = local->filter_flags ^ new_flags;
 
@@ -128,9 +139,15 @@ static void ieee80211_master_set_multicast_list(struct net_device *dev)
 
 static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
 {
+	int meshhdrlen;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	meshhdrlen = (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) ? 5 : 0;
+
 	/* FIX: what would be proper limits for MTU?
 	 * This interface uses 802.3 frames. */
-	if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6) {
+	if (new_mtu < 256 ||
+		new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6 - meshhdrlen) {
 		printk(KERN_WARNING "%s: invalid MTU %d\n",
 		       dev->name, new_mtu);
 		return -EINVAL;
@@ -166,6 +183,7 @@ static int ieee80211_open(struct net_device *dev)
 	struct ieee80211_if_init_conf conf;
 	int res;
 	bool need_hw_reconfig = 0;
+	struct sta_info *sta;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
@@ -173,8 +191,52 @@ static int ieee80211_open(struct net_device *dev)
 	list_for_each_entry(nsdata, &local->interfaces, list) {
 		struct net_device *ndev = nsdata->dev;
 
-		if (ndev != dev && ndev != local->mdev && netif_running(ndev) &&
-		    compare_ether_addr(dev->dev_addr, ndev->dev_addr) == 0) {
+		if (ndev != dev && ndev != local->mdev && netif_running(ndev)) {
+			/*
+			 * Allow only a single IBSS interface to be up at any
+			 * time. This is restricted because beacon distribution
+			 * cannot work properly if both are in the same IBSS.
+			 *
+			 * To remove this restriction we'd have to disallow them
+			 * from setting the same SSID on different IBSS interfaces
+			 * belonging to the same hardware. Then, however, we're
+			 * faced with having to adopt two different TSF timers...
+			 */
+			if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
+			    nsdata->vif.type == IEEE80211_IF_TYPE_IBSS)
+				return -EBUSY;
+
+			/*
+			 * Disallow multiple IBSS/STA mode interfaces.
+			 *
+			 * This is a technical restriction, it is possible although
+			 * most likely not IEEE 802.11 compliant to have multiple
+			 * STAs with just a single hardware (the TSF timer will not
+			 * be adjusted properly.)
+			 *
+			 * However, because mac80211 uses the master device's BSS
+			 * information for each STA/IBSS interface, doing this will
+			 * currently corrupt that BSS information completely, unless,
+			 * a not very useful case, both STAs are associated to the
+			 * same BSS.
+			 *
+			 * To remove this restriction, the BSS information needs to
+			 * be embedded in the STA/IBSS mode sdata instead of using
+			 * the master device's BSS structure.
+			 */
+			if ((sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+			     sdata->vif.type == IEEE80211_IF_TYPE_IBSS) &&
+			    (nsdata->vif.type == IEEE80211_IF_TYPE_STA ||
+			     nsdata->vif.type == IEEE80211_IF_TYPE_IBSS))
+				return -EBUSY;
+
+			/*
+			 * The remaining checks are only performed for interfaces
+			 * with the same MAC address.
+			 */
+			if (compare_ether_addr(dev->dev_addr, ndev->dev_addr))
+				continue;
+
 			/*
 			 * check whether it may have the same address
 			 */
@@ -186,8 +248,7 @@ static int ieee80211_open(struct net_device *dev)
 			 * can only add VLANs to enabled APs
 			 */
 			if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN &&
-			    nsdata->vif.type == IEEE80211_IF_TYPE_AP &&
-			    netif_running(nsdata->dev))
+			    nsdata->vif.type == IEEE80211_IF_TYPE_AP)
 				sdata->u.vlan.ap = nsdata;
 		}
 	}
@@ -196,6 +257,20 @@ static int ieee80211_open(struct net_device *dev)
 	case IEEE80211_IF_TYPE_WDS:
 		if (is_zero_ether_addr(sdata->u.wds.remote_addr))
 			return -ENOLINK;
+
+		/* Create STA entry for the WDS peer */
+		sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
+				     GFP_KERNEL);
+		if (!sta)
+			return -ENOMEM;
+
+		sta->flags |= WLAN_STA_AUTHORIZED;
+
+		res = sta_info_insert(sta);
+		if (res) {
+			/* STA has been freed */
+			return res;
+		}
 		break;
 	case IEEE80211_IF_TYPE_VLAN:
 		if (!sdata->u.vlan.ap)
@@ -205,6 +280,7 @@ static int ieee80211_open(struct net_device *dev)
 	case IEEE80211_IF_TYPE_STA:
 	case IEEE80211_IF_TYPE_MNTR:
 	case IEEE80211_IF_TYPE_IBSS:
+	case IEEE80211_IF_TYPE_MESH_POINT:
 		/* no special treatment */
 		break;
 	case IEEE80211_IF_TYPE_INVALID:
@@ -229,15 +305,28 @@ static int ieee80211_open(struct net_device *dev)
 		/* no need to tell driver */
 		break;
 	case IEEE80211_IF_TYPE_MNTR:
+		if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) {
+			local->cooked_mntrs++;
+			break;
+		}
+
 		/* must be before the call to ieee80211_configure_filter */
 		local->monitors++;
-		if (local->monitors == 1) {
-			netif_tx_lock_bh(local->mdev);
-			ieee80211_configure_filter(local);
-			netif_tx_unlock_bh(local->mdev);
-
+		if (local->monitors == 1)
 			local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
-		}
+
+		if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
+			local->fif_fcsfail++;
+		if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
+			local->fif_plcpfail++;
+		if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
+			local->fif_control++;
+		if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
+			local->fif_other_bss++;
+
+		netif_tx_lock_bh(local->mdev);
+		ieee80211_configure_filter(local);
+		netif_tx_unlock_bh(local->mdev);
 		break;
 	case IEEE80211_IF_TYPE_STA:
 	case IEEE80211_IF_TYPE_IBSS:
@@ -305,24 +394,46 @@ static int ieee80211_open(struct net_device *dev)
 
 static int ieee80211_stop(struct net_device *dev)
 {
-	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_init_conf conf;
 	struct sta_info *sta;
-	int i;
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	/*
+	 * Stop TX on this interface first.
+	 */
+	netif_stop_queue(dev);
 
-	list_for_each_entry(sta, &local->sta_list, list) {
-		if (sta->dev == dev)
-			for (i = 0; i <  STA_TID_NUM; i++)
-				ieee80211_sta_stop_rx_ba_session(sta->dev,
-						sta->addr, i,
-						WLAN_BACK_RECIPIENT,
-						WLAN_REASON_QSTA_LEAVE_QBSS);
+	/*
+	 * Now delete all active aggregation sessions.
+	 */
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(sta, &local->sta_list, list) {
+		if (sta->sdata == sdata)
+			ieee80211_sta_tear_down_BA_sessions(dev, sta->addr);
 	}
 
-	netif_stop_queue(dev);
+	rcu_read_unlock();
+
+	/*
+	 * Remove all stations associated with this interface.
+	 *
+	 * This must be done before calling ops->remove_interface()
+	 * because otherwise we can later invoke ops->sta_notify()
+	 * whenever the STAs are removed, and that invalidates driver
+	 * assumptions about always getting a vif pointer that is valid
+	 * (because if we remove a STA after ops->remove_interface()
+	 * the driver will have removed the vif info already!)
+	 *
+	 * We could relax this and only unlink the stations from the
+	 * hash table and list but keep them on a per-sdata list that
+	 * will be inserted back again when the interface is brought
+	 * up again, but I don't currently see a use case for that,
+	 * except with WDS which gets a STA entry created when it is
+	 * brought up.
+	 */
+	sta_info_flush(local, sdata);
 
 	/*
 	 * Don't count this interface for promisc/allmulti while it
@@ -364,15 +475,29 @@ static int ieee80211_stop(struct net_device *dev)
 		/* no need to tell driver */
 		break;
 	case IEEE80211_IF_TYPE_MNTR:
-		local->monitors--;
-		if (local->monitors == 0) {
-			netif_tx_lock_bh(local->mdev);
-			ieee80211_configure_filter(local);
-			netif_tx_unlock_bh(local->mdev);
+		if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) {
+			local->cooked_mntrs--;
+			break;
+		}
 
+		local->monitors--;
+		if (local->monitors == 0)
 			local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
-		}
+
+		if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
+			local->fif_fcsfail--;
+		if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
+			local->fif_plcpfail--;
+		if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
+			local->fif_control--;
+		if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
+			local->fif_other_bss--;
+
+		netif_tx_lock_bh(local->mdev);
+		ieee80211_configure_filter(local);
+		netif_tx_unlock_bh(local->mdev);
 		break;
+	case IEEE80211_IF_TYPE_MESH_POINT:
 	case IEEE80211_IF_TYPE_STA:
 	case IEEE80211_IF_TYPE_IBSS:
 		sdata->u.sta.state = IEEE80211_DISABLED;
@@ -426,6 +551,357 @@ static int ieee80211_stop(struct net_device *dev)
 	return 0;
 }
 
+int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct sta_info *sta;
+	struct ieee80211_sub_if_data *sdata;
+	u16 start_seq_num = 0;
+	u8 *state;
+	int ret;
+	DECLARE_MAC_BUF(mac);
+
+	if (tid >= STA_TID_NUM)
+		return -EINVAL;
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "Open BA session requested for %s tid %u\n",
+				print_mac(mac, ra), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+	rcu_read_lock();
+
+	sta = sta_info_get(local, ra);
+	if (!sta) {
+		printk(KERN_DEBUG "Could not find the station\n");
+		rcu_read_unlock();
+		return -ENOENT;
+	}
+
+	spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
+
+	/* we have tried too many times, receiver does not want A-MPDU */
+	if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_MAX_RETRIES) {
+		ret = -EBUSY;
+		goto start_ba_exit;
+	}
+
+	state = &sta->ampdu_mlme.tid_state_tx[tid];
+	/* check if the TID is not in aggregation flow already */
+	if (*state != HT_AGG_STATE_IDLE) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "BA request denied - session is not "
+				 "idle on tid %u\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+		ret = -EAGAIN;
+		goto start_ba_exit;
+	}
+
+	/* prepare A-MPDU MLME for Tx aggregation */
+	sta->ampdu_mlme.tid_tx[tid] =
+			kmalloc(sizeof(struct tid_ampdu_tx), GFP_ATOMIC);
+	if (!sta->ampdu_mlme.tid_tx[tid]) {
+		if (net_ratelimit())
+			printk(KERN_ERR "allocate tx mlme to tid %d failed\n",
+					tid);
+		ret = -ENOMEM;
+		goto start_ba_exit;
+	}
+	/* Tx timer */
+	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.function =
+			sta_addba_resp_timer_expired;
+	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.data =
+			(unsigned long)&sta->timer_to_tid[tid];
+	init_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
+
+	/* ensure that TX flow won't interrupt us
+	 * until the end of the call to requeue function */
+	spin_lock_bh(&local->mdev->queue_lock);
+
+	/* create a new queue for this aggregation */
+	ret = ieee80211_ht_agg_queue_add(local, sta, tid);
+
+	/* case no queue is available to aggregation
+	 * don't switch to aggregation */
+	if (ret) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "BA request denied - queue unavailable for"
+					" tid %d\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+		goto start_ba_err;
+	}
+	sdata = sta->sdata;
+
+	/* Ok, the Addba frame hasn't been sent yet, but if the driver calls the
+	 * call back right away, it must see that the flow has begun */
+	*state |= HT_ADDBA_REQUESTED_MSK;
+
+	if (local->ops->ampdu_action)
+		ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START,
+						ra, tid, &start_seq_num);
+
+	if (ret) {
+		/* No need to requeue the packets in the agg queue, since we
+		 * held the tx lock: no packet could be enqueued to the newly
+		 * allocated queue */
+		 ieee80211_ht_agg_queue_remove(local, sta, tid, 0);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "BA request denied - HW unavailable for"
+					" tid %d\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+		*state = HT_AGG_STATE_IDLE;
+		goto start_ba_err;
+	}
+
+	/* Will put all the packets in the new SW queue */
+	ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
+	spin_unlock_bh(&local->mdev->queue_lock);
+
+	/* send an addBA request */
+	sta->ampdu_mlme.dialog_token_allocator++;
+	sta->ampdu_mlme.tid_tx[tid]->dialog_token =
+			sta->ampdu_mlme.dialog_token_allocator;
+	sta->ampdu_mlme.tid_tx[tid]->ssn = start_seq_num;
+
+	ieee80211_send_addba_request(sta->sdata->dev, ra, tid,
+			 sta->ampdu_mlme.tid_tx[tid]->dialog_token,
+			 sta->ampdu_mlme.tid_tx[tid]->ssn,
+			 0x40, 5000);
+
+	/* activate the timer for the recipient's addBA response */
+	sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer.expires =
+				jiffies + ADDBA_RESP_INTERVAL;
+	add_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
+	printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid);
+	goto start_ba_exit;
+
+start_ba_err:
+	kfree(sta->ampdu_mlme.tid_tx[tid]);
+	sta->ampdu_mlme.tid_tx[tid] = NULL;
+	spin_unlock_bh(&local->mdev->queue_lock);
+	ret = -EBUSY;
+start_ba_exit:
+	spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+	rcu_read_unlock();
+	return ret;
+}
+EXPORT_SYMBOL(ieee80211_start_tx_ba_session);
+
+int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
+				 u8 *ra, u16 tid,
+				 enum ieee80211_back_parties initiator)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct sta_info *sta;
+	u8 *state;
+	int ret = 0;
+	DECLARE_MAC_BUF(mac);
+
+	if (tid >= STA_TID_NUM)
+		return -EINVAL;
+
+	rcu_read_lock();
+	sta = sta_info_get(local, ra);
+	if (!sta) {
+		rcu_read_unlock();
+		return -ENOENT;
+	}
+
+	/* check if the TID is in aggregation */
+	state = &sta->ampdu_mlme.tid_state_tx[tid];
+	spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
+
+	if (*state != HT_AGG_STATE_OPERATIONAL) {
+		ret = -ENOENT;
+		goto stop_BA_exit;
+	}
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "Tx BA session stop requested for %s tid %u\n",
+				print_mac(mac, ra), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+	ieee80211_stop_queue(hw, sta->tid_to_tx_q[tid]);
+
+	*state = HT_AGG_STATE_REQ_STOP_BA_MSK |
+		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
+
+	if (local->ops->ampdu_action)
+		ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_STOP,
+						ra, tid, NULL);
+
+	/* case HW denied going back to legacy */
+	if (ret) {
+		WARN_ON(ret != -EBUSY);
+		*state = HT_AGG_STATE_OPERATIONAL;
+		ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+		goto stop_BA_exit;
+	}
+
+stop_BA_exit:
+	spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+	rcu_read_unlock();
+	return ret;
+}
+EXPORT_SYMBOL(ieee80211_stop_tx_ba_session);
+
+void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct sta_info *sta;
+	u8 *state;
+	DECLARE_MAC_BUF(mac);
+
+	if (tid >= STA_TID_NUM) {
+		printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
+				tid, STA_TID_NUM);
+		return;
+	}
+
+	rcu_read_lock();
+	sta = sta_info_get(local, ra);
+	if (!sta) {
+		rcu_read_unlock();
+		printk(KERN_DEBUG "Could not find station: %s\n",
+				print_mac(mac, ra));
+		return;
+	}
+
+	state = &sta->ampdu_mlme.tid_state_tx[tid];
+	spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
+
+	if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+		printk(KERN_DEBUG "addBA was not requested yet, state is %d\n",
+				*state);
+		spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+		rcu_read_unlock();
+		return;
+	}
+
+	WARN_ON_ONCE(*state & HT_ADDBA_DRV_READY_MSK);
+
+	*state |= HT_ADDBA_DRV_READY_MSK;
+
+	if (*state == HT_AGG_STATE_OPERATIONAL) {
+		printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
+		ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+	}
+	spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+	rcu_read_unlock();
+}
+EXPORT_SYMBOL(ieee80211_start_tx_ba_cb);
+
+void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct sta_info *sta;
+	u8 *state;
+	int agg_queue;
+	DECLARE_MAC_BUF(mac);
+
+	if (tid >= STA_TID_NUM) {
+		printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
+				tid, STA_TID_NUM);
+		return;
+	}
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "Stopping Tx BA session for %s tid %d\n",
+				print_mac(mac, ra), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+	rcu_read_lock();
+	sta = sta_info_get(local, ra);
+	if (!sta) {
+		printk(KERN_DEBUG "Could not find station: %s\n",
+				print_mac(mac, ra));
+		rcu_read_unlock();
+		return;
+	}
+	state = &sta->ampdu_mlme.tid_state_tx[tid];
+
+	spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
+	if ((*state & HT_AGG_STATE_REQ_STOP_BA_MSK) == 0) {
+		printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n");
+		spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+		rcu_read_unlock();
+		return;
+	}
+
+	if (*state & HT_AGG_STATE_INITIATOR_MSK)
+		ieee80211_send_delba(sta->sdata->dev, ra, tid,
+			WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
+
+	agg_queue = sta->tid_to_tx_q[tid];
+
+	/* avoid ordering issues: we are the only one that can modify
+	 * the content of the qdiscs */
+	spin_lock_bh(&local->mdev->queue_lock);
+	/* remove the queue for this aggregation */
+	ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
+	spin_unlock_bh(&local->mdev->queue_lock);
+
+	/* we just requeued the all the frames that were in the removed
+	 * queue, and since we might miss a softirq we do netif_schedule.
+	 * ieee80211_wake_queue is not used here as this queue is not
+	 * necessarily stopped */
+	netif_schedule(local->mdev);
+	*state = HT_AGG_STATE_IDLE;
+	sta->ampdu_mlme.addba_req_num[tid] = 0;
+	kfree(sta->ampdu_mlme.tid_tx[tid]);
+	sta->ampdu_mlme.tid_tx[tid] = NULL;
+	spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+
+	rcu_read_unlock();
+}
+EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb);
+
+void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
+				      const u8 *ra, u16 tid)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct ieee80211_ra_tid *ra_tid;
+	struct sk_buff *skb = dev_alloc_skb(0);
+
+	if (unlikely(!skb)) {
+		if (net_ratelimit())
+			printk(KERN_WARNING "%s: Not enough memory, "
+			       "dropping start BA session", skb->dev->name);
+		return;
+	}
+	ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
+	memcpy(&ra_tid->ra, ra, ETH_ALEN);
+	ra_tid->tid = tid;
+
+	skb->pkt_type = IEEE80211_ADDBA_MSG;
+	skb_queue_tail(&local->skb_queue, skb);
+	tasklet_schedule(&local->tasklet);
+}
+EXPORT_SYMBOL(ieee80211_start_tx_ba_cb_irqsafe);
+
+void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
+				     const u8 *ra, u16 tid)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct ieee80211_ra_tid *ra_tid;
+	struct sk_buff *skb = dev_alloc_skb(0);
+
+	if (unlikely(!skb)) {
+		if (net_ratelimit())
+			printk(KERN_WARNING "%s: Not enough memory, "
+			       "dropping stop BA session", skb->dev->name);
+		return;
+	}
+	ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
+	memcpy(&ra_tid->ra, ra, ETH_ALEN);
+	ra_tid->tid = tid;
+
+	skb->pkt_type = IEEE80211_DELBA_MSG;
+	skb_queue_tail(&local->skb_queue, skb);
+	tasklet_schedule(&local->tasklet);
+}
+EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb_irqsafe);
+
 static void ieee80211_set_multicast_list(struct net_device *dev)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
@@ -477,41 +953,6 @@ void ieee80211_if_setup(struct net_device *dev)
 	dev->destructor = ieee80211_if_free;
 }
 
-/* WDS specialties */
-
-int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct sta_info *sta;
-	DECLARE_MAC_BUF(mac);
-
-	if (compare_ether_addr(remote_addr, sdata->u.wds.remote_addr) == 0)
-		return 0;
-
-	/* Create STA entry for the new peer */
-	sta = sta_info_add(local, dev, remote_addr, GFP_KERNEL);
-	if (!sta)
-		return -ENOMEM;
-	sta_info_put(sta);
-
-	/* Remove STA entry for the old peer */
-	sta = sta_info_get(local, sdata->u.wds.remote_addr);
-	if (sta) {
-		sta_info_free(sta);
-		sta_info_put(sta);
-	} else {
-		printk(KERN_DEBUG "%s: could not find STA entry for WDS link "
-		       "peer %s\n",
-		       dev->name, print_mac(mac, sdata->u.wds.remote_addr));
-	}
-
-	/* Update WDS link data */
-	memcpy(&sdata->u.wds.remote_addr, remote_addr, ETH_ALEN);
-
-	return 0;
-}
-
 /* everything else */
 
 static int __ieee80211_if_config(struct net_device *dev,
@@ -532,6 +973,9 @@ static int __ieee80211_if_config(struct net_device *dev,
 		conf.bssid = sdata->u.sta.bssid;
 		conf.ssid = sdata->u.sta.ssid;
 		conf.ssid_len = sdata->u.sta.ssid_len;
+	} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
+		conf.beacon = beacon;
+		ieee80211_start_mesh(dev);
 	} else if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
 		conf.ssid = sdata->u.ap.ssid;
 		conf.ssid_len = sdata->u.ap.ssid_len;
@@ -544,6 +988,11 @@ static int __ieee80211_if_config(struct net_device *dev,
 
 int ieee80211_if_config(struct net_device *dev)
 {
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	if (sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT &&
+	    (local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
+		return ieee80211_if_config_beacon(dev);
 	return __ieee80211_if_config(dev, NULL, NULL);
 }
 
@@ -565,37 +1014,28 @@ int ieee80211_if_config_beacon(struct net_device *dev)
 
 int ieee80211_hw_config(struct ieee80211_local *local)
 {
-	struct ieee80211_hw_mode *mode;
 	struct ieee80211_channel *chan;
 	int ret = 0;
 
-	if (local->sta_sw_scanning) {
+	if (local->sta_sw_scanning)
 		chan = local->scan_channel;
-		mode = local->scan_hw_mode;
-	} else {
+	else
 		chan = local->oper_channel;
-		mode = local->oper_hw_mode;
-	}
 
-	local->hw.conf.channel = chan->chan;
-	local->hw.conf.channel_val = chan->val;
-	if (!local->hw.conf.power_level) {
-		local->hw.conf.power_level = chan->power_level;
-	} else {
-		local->hw.conf.power_level = min(chan->power_level,
-						 local->hw.conf.power_level);
-	}
-	local->hw.conf.freq = chan->freq;
-	local->hw.conf.phymode = mode->mode;
-	local->hw.conf.antenna_max = chan->antenna_max;
-	local->hw.conf.chan = chan;
-	local->hw.conf.mode = mode;
+	local->hw.conf.channel = chan;
+
+	if (!local->hw.conf.power_level)
+		local->hw.conf.power_level = chan->max_power;
+	else
+		local->hw.conf.power_level = min(chan->max_power,
+					       local->hw.conf.power_level);
+
+	local->hw.conf.max_antenna_gain = chan->max_antenna_gain;
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	printk(KERN_DEBUG "HW CONFIG: channel=%d freq=%d "
-	       "phymode=%d\n", local->hw.conf.channel, local->hw.conf.freq,
-	       local->hw.conf.phymode);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+	printk(KERN_DEBUG "%s: HW CONFIG: freq=%d\n",
+	       wiphy_name(local->hw.wiphy), chan->center_freq);
+#endif
 
 	if (local->open_count)
 		ret = local->ops->config(local_to_hw(local), &local->hw.conf);
@@ -604,52 +1044,69 @@ int ieee80211_hw_config(struct ieee80211_local *local)
 }
 
 /**
- * ieee80211_hw_config_ht should be used only after legacy configuration
- * has been determined, as ht configuration depends upon the hardware's
- * HT abilities for a _specific_ band.
+ * ieee80211_handle_ht should be used only after legacy configuration
+ * has been determined namely band, as ht configuration depends upon
+ * the hardware's HT abilities for a _specific_ band.
  */
-int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
+u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
 			   struct ieee80211_ht_info *req_ht_cap,
 			   struct ieee80211_ht_bss_info *req_bss_cap)
 {
 	struct ieee80211_conf *conf = &local->hw.conf;
-	struct ieee80211_hw_mode *mode = conf->mode;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_ht_info ht_conf;
+	struct ieee80211_ht_bss_info ht_bss_conf;
 	int i;
+	u32 changed = 0;
+
+	sband = local->hw.wiphy->bands[conf->channel->band];
 
 	/* HT is not supported */
-	if (!mode->ht_info.ht_supported) {
+	if (!sband->ht_info.ht_supported) {
 		conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
-		return -EOPNOTSUPP;
+		return 0;
 	}
 
-	/* disable HT */
-	if (!enable_ht) {
-		conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
-	} else {
+	memset(&ht_conf, 0, sizeof(struct ieee80211_ht_info));
+	memset(&ht_bss_conf, 0, sizeof(struct ieee80211_ht_bss_info));
+
+	if (enable_ht) {
+		if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE))
+			changed |= BSS_CHANGED_HT;
+
 		conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE;
-		conf->ht_conf.cap = req_ht_cap->cap & mode->ht_info.cap;
-		conf->ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS);
-		conf->ht_conf.cap |=
-			mode->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS;
-		conf->ht_bss_conf.primary_channel =
-			req_bss_cap->primary_channel;
-		conf->ht_bss_conf.bss_cap = req_bss_cap->bss_cap;
-		conf->ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode;
+		ht_conf.ht_supported = 1;
+
+		ht_conf.cap = req_ht_cap->cap & sband->ht_info.cap;
+		ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS);
+		ht_conf.cap |= sband->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS;
+
 		for (i = 0; i < SUPP_MCS_SET_LEN; i++)
-			conf->ht_conf.supp_mcs_set[i] =
-				mode->ht_info.supp_mcs_set[i] &
-				  req_ht_cap->supp_mcs_set[i];
-
-		/* In STA mode, this gives us indication
-		 * to the AP's mode of operation */
-		conf->ht_conf.ht_supported = 1;
-		conf->ht_conf.ampdu_factor = req_ht_cap->ampdu_factor;
-		conf->ht_conf.ampdu_density = req_ht_cap->ampdu_density;
+			ht_conf.supp_mcs_set[i] =
+					sband->ht_info.supp_mcs_set[i] &
+					req_ht_cap->supp_mcs_set[i];
+
+		ht_bss_conf.primary_channel = req_bss_cap->primary_channel;
+		ht_bss_conf.bss_cap = req_bss_cap->bss_cap;
+		ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode;
+
+		ht_conf.ampdu_factor = req_ht_cap->ampdu_factor;
+		ht_conf.ampdu_density = req_ht_cap->ampdu_density;
+
+		/* if bss configuration changed store the new one */
+		if (memcmp(&conf->ht_conf, &ht_conf, sizeof(ht_conf)) ||
+		    memcmp(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf))) {
+			changed |= BSS_CHANGED_HT;
+			memcpy(&conf->ht_conf, &ht_conf, sizeof(ht_conf));
+			memcpy(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf));
+		}
+	} else {
+		if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)
+			changed |= BSS_CHANGED_HT;
+		conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
 	}
 
-	local->ops->conf_ht(local_to_hw(local), &local->hw.conf);
-
-	return 0;
+	return changed;
 }
 
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
@@ -725,6 +1182,7 @@ static void ieee80211_tasklet_handler(unsigned long data)
 	struct sk_buff *skb;
 	struct ieee80211_rx_status rx_status;
 	struct ieee80211_tx_status *tx_status;
+	struct ieee80211_ra_tid *ra_tid;
 
 	while ((skb = skb_dequeue(&local->skb_queue)) ||
 	       (skb = skb_dequeue(&local->skb_queue_unreliable))) {
@@ -745,6 +1203,18 @@ static void ieee80211_tasklet_handler(unsigned long data)
 					    skb, tx_status);
 			kfree(tx_status);
 			break;
+		case IEEE80211_DELBA_MSG:
+			ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
+			ieee80211_stop_tx_ba_cb(local_to_hw(local),
+						ra_tid->ra, ra_tid->tid);
+			dev_kfree_skb(skb);
+			break;
+		case IEEE80211_ADDBA_MSG:
+			ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
+			ieee80211_start_tx_ba_cb(local_to_hw(local),
+						 ra_tid->ra, ra_tid->tid);
+			dev_kfree_skb(skb);
+			break ;
 		default: /* should never get here! */
 			printk(KERN_ERR "%s: Unknown message type (%d)\n",
 			       wiphy_name(local->hw.wiphy), skb->pkt_type);
@@ -822,6 +1292,77 @@ no_key:
 	}
 }
 
+static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
+					    struct sta_info *sta,
+					    struct sk_buff *skb,
+					    struct ieee80211_tx_status *status)
+{
+	sta->tx_filtered_count++;
+
+	/*
+	 * Clear the TX filter mask for this STA when sending the next
+	 * packet. If the STA went to power save mode, this will happen
+	 * happen when it wakes up for the next time.
+	 */
+	sta->flags |= WLAN_STA_CLEAR_PS_FILT;
+
+	/*
+	 * This code races in the following way:
+	 *
+	 *  (1) STA sends frame indicating it will go to sleep and does so
+	 *  (2) hardware/firmware adds STA to filter list, passes frame up
+	 *  (3) hardware/firmware processes TX fifo and suppresses a frame
+	 *  (4) we get TX status before having processed the frame and
+	 *	knowing that the STA has gone to sleep.
+	 *
+	 * This is actually quite unlikely even when both those events are
+	 * processed from interrupts coming in quickly after one another or
+	 * even at the same time because we queue both TX status events and
+	 * RX frames to be processed by a tasklet and process them in the
+	 * same order that they were received or TX status last. Hence, there
+	 * is no race as long as the frame RX is processed before the next TX
+	 * status, which drivers can ensure, see below.
+	 *
+	 * Note that this can only happen if the hardware or firmware can
+	 * actually add STAs to the filter list, if this is done by the
+	 * driver in response to set_tim() (which will only reduce the race
+	 * this whole filtering tries to solve, not completely solve it)
+	 * this situation cannot happen.
+	 *
+	 * To completely solve this race drivers need to make sure that they
+	 *  (a) don't mix the irq-safe/not irq-safe TX status/RX processing
+	 *	functions and
+	 *  (b) always process RX events before TX status events if ordering
+	 *      can be unknown, for example with different interrupt status
+	 *	bits.
+	 */
+	if (sta->flags & WLAN_STA_PS &&
+	    skb_queue_len(&sta->tx_filtered) < STA_MAX_TX_BUFFER) {
+		ieee80211_remove_tx_extra(local, sta->key, skb,
+					  &status->control);
+		skb_queue_tail(&sta->tx_filtered, skb);
+		return;
+	}
+
+	if (!(sta->flags & WLAN_STA_PS) &&
+	    !(status->control.flags & IEEE80211_TXCTL_REQUEUE)) {
+		/* Software retry the packet once */
+		status->control.flags |= IEEE80211_TXCTL_REQUEUE;
+		ieee80211_remove_tx_extra(local, sta->key, skb,
+					  &status->control);
+		dev_queue_xmit(skb);
+		return;
+	}
+
+	if (net_ratelimit())
+		printk(KERN_DEBUG "%s: dropped TX filtered frame, "
+		       "queue_len=%d PS=%d @%lu\n",
+		       wiphy_name(local->hw.wiphy),
+		       skb_queue_len(&sta->tx_filtered),
+		       !!(sta->flags & WLAN_STA_PS), jiffies);
+	dev_kfree_skb(skb);
+}
+
 void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
 			 struct ieee80211_tx_status *status)
 {
@@ -831,7 +1372,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
 	u16 frag, type;
 	struct ieee80211_tx_status_rtap_hdr *rthdr;
 	struct ieee80211_sub_if_data *sdata;
-	int monitors;
+	struct net_device *prev_dev = NULL;
 
 	if (!status) {
 		printk(KERN_ERR
@@ -841,18 +1382,24 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
 		return;
 	}
 
+	rcu_read_lock();
+
 	if (status->excessive_retries) {
 		struct sta_info *sta;
 		sta = sta_info_get(local, hdr->addr1);
 		if (sta) {
 			if (sta->flags & WLAN_STA_PS) {
-				/* The STA is in power save mode, so assume
+				/*
+				 * The STA is in power save mode, so assume
 				 * that this TX packet failed because of that.
 				 */
 				status->excessive_retries = 0;
 				status->flags |= IEEE80211_TX_STATUS_TX_FILTERED;
+				ieee80211_handle_filtered_frame(local, sta,
+								skb, status);
+				rcu_read_unlock();
+				return;
 			}
-			sta_info_put(sta);
 		}
 	}
 
@@ -860,53 +1407,16 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
 		struct sta_info *sta;
 		sta = sta_info_get(local, hdr->addr1);
 		if (sta) {
-			sta->tx_filtered_count++;
-
-			/* Clear the TX filter mask for this STA when sending
-			 * the next packet. If the STA went to power save mode,
-			 * this will happen when it is waking up for the next
-			 * time. */
-			sta->clear_dst_mask = 1;
-
-			/* TODO: Is the WLAN_STA_PS flag always set here or is
-			 * the race between RX and TX status causing some
-			 * packets to be filtered out before 80211.o gets an
-			 * update for PS status? This seems to be the case, so
-			 * no changes are likely to be needed. */
-			if (sta->flags & WLAN_STA_PS &&
-			    skb_queue_len(&sta->tx_filtered) <
-			    STA_MAX_TX_BUFFER) {
-				ieee80211_remove_tx_extra(local, sta->key,
-							  skb,
-							  &status->control);
-				skb_queue_tail(&sta->tx_filtered, skb);
-			} else if (!(sta->flags & WLAN_STA_PS) &&
-				   !(status->control.flags & IEEE80211_TXCTL_REQUEUE)) {
-				/* Software retry the packet once */
-				status->control.flags |= IEEE80211_TXCTL_REQUEUE;
-				ieee80211_remove_tx_extra(local, sta->key,
-							  skb,
-							  &status->control);
-				dev_queue_xmit(skb);
-			} else {
-				if (net_ratelimit()) {
-					printk(KERN_DEBUG "%s: dropped TX "
-					       "filtered frame queue_len=%d "
-					       "PS=%d @%lu\n",
-					       wiphy_name(local->hw.wiphy),
-					       skb_queue_len(
-						       &sta->tx_filtered),
-					       !!(sta->flags & WLAN_STA_PS),
-					       jiffies);
-				}
-				dev_kfree_skb(skb);
-			}
-			sta_info_put(sta);
+			ieee80211_handle_filtered_frame(local, sta, skb,
+							status);
+			rcu_read_unlock();
 			return;
 		}
 	} else
 		rate_control_tx_status(local->mdev, skb, status);
 
+	rcu_read_unlock();
+
 	ieee80211_led_tx(local, 0);
 
 	/* SNMP counters
@@ -944,7 +1454,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
 	/* this was a transmitted frame, but now we want to reuse it */
 	skb_orphan(skb);
 
-	if (!local->monitors) {
+	/*
+	 * This is a bit racy but we can avoid a lot of work
+	 * with this test...
+	 */
+	if (!local->monitors && !local->cooked_mntrs) {
 		dev_kfree_skb(skb);
 		return;
 	}
@@ -978,51 +1492,44 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
 
 	rthdr->data_retries = status->retry_count;
 
+	/* XXX: is this sufficient for BPF? */
+	skb_set_mac_header(skb, 0);
+	skb->ip_summed = CHECKSUM_UNNECESSARY;
+	skb->pkt_type = PACKET_OTHERHOST;
+	skb->protocol = htons(ETH_P_802_2);
+	memset(skb->cb, 0, sizeof(skb->cb));
+
 	rcu_read_lock();
-	monitors = local->monitors;
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-		/*
-		 * Using the monitors counter is possibly racy, but
-		 * if the value is wrong we simply either clone the skb
-		 * once too much or forget sending it to one monitor iface
-		 * The latter case isn't nice but fixing the race is much
-		 * more complicated.
-		 */
-		if (!monitors || !skb)
-			goto out;
-
 		if (sdata->vif.type == IEEE80211_IF_TYPE_MNTR) {
 			if (!netif_running(sdata->dev))
 				continue;
-			monitors--;
-			if (monitors)
+
+			if (prev_dev) {
 				skb2 = skb_clone(skb, GFP_ATOMIC);
-			else
-				skb2 = NULL;
-			skb->dev = sdata->dev;
-			/* XXX: is this sufficient for BPF? */
-			skb_set_mac_header(skb, 0);
-			skb->ip_summed = CHECKSUM_UNNECESSARY;
-			skb->pkt_type = PACKET_OTHERHOST;
-			skb->protocol = htons(ETH_P_802_2);
-			memset(skb->cb, 0, sizeof(skb->cb));
-			netif_rx(skb);
-			skb = skb2;
+				if (skb2) {
+					skb2->dev = prev_dev;
+					netif_rx(skb2);
+				}
+			}
+
+			prev_dev = sdata->dev;
 		}
 	}
- out:
+	if (prev_dev) {
+		skb->dev = prev_dev;
+		netif_rx(skb);
+		skb = NULL;
+	}
 	rcu_read_unlock();
-	if (skb)
-		dev_kfree_skb(skb);
+	dev_kfree_skb(skb);
 }
 EXPORT_SYMBOL(ieee80211_tx_status);
 
 struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 					const struct ieee80211_ops *ops)
 {
-	struct net_device *mdev;
 	struct ieee80211_local *local;
-	struct ieee80211_sub_if_data *sdata;
 	int priv_size;
 	struct wiphy *wiphy;
 
@@ -1068,25 +1575,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	BUG_ON(!ops->configure_filter);
 	local->ops = ops;
 
-	/* for now, mdev needs sub_if_data :/ */
-	mdev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
-			    "wmaster%d", ether_setup);
-	if (!mdev) {
-		wiphy_free(wiphy);
-		return NULL;
-	}
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(mdev);
-	mdev->ieee80211_ptr = &sdata->wdev;
-	sdata->wdev.wiphy = wiphy;
-
 	local->hw.queues = 1; /* default */
 
-	local->mdev = mdev;
-	local->rx_pre_handlers = ieee80211_rx_pre_handlers;
-	local->rx_handlers = ieee80211_rx_handlers;
-	local->tx_handlers = ieee80211_tx_handlers;
-
 	local->bridge_packets = 1;
 
 	local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
@@ -1095,33 +1585,14 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	local->long_retry_limit = 4;
 	local->hw.conf.radio_enabled = 1;
 
-	local->enabled_modes = ~0;
-
-	INIT_LIST_HEAD(&local->modes_list);
-
 	INIT_LIST_HEAD(&local->interfaces);
 
+	spin_lock_init(&local->key_lock);
+
 	INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work);
-	ieee80211_rx_bss_list_init(mdev);
 
 	sta_info_init(local);
 
-	mdev->hard_start_xmit = ieee80211_master_start_xmit;
-	mdev->open = ieee80211_master_open;
-	mdev->stop = ieee80211_master_stop;
-	mdev->type = ARPHRD_IEEE80211;
-	mdev->header_ops = &ieee80211_header_ops;
-	mdev->set_multicast_list = ieee80211_master_set_multicast_list;
-
-	sdata->vif.type = IEEE80211_IF_TYPE_AP;
-	sdata->dev = mdev;
-	sdata->local = local;
-	sdata->u.ap.force_unicast_rateidx = -1;
-	sdata->u.ap.max_ratectrl_rateidx = -1;
-	ieee80211_if_sdata_init(sdata);
-	/* no RCU needed since we're still during init phase */
-	list_add_tail(&sdata->list, &local->interfaces);
-
 	tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
 		     (unsigned long)local);
 	tasklet_disable(&local->tx_pending_tasklet);
@@ -1143,11 +1614,63 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	struct ieee80211_local *local = hw_to_local(hw);
 	const char *name;
 	int result;
+	enum ieee80211_band band;
+	struct net_device *mdev;
+	struct ieee80211_sub_if_data *sdata;
+
+	/*
+	 * generic code guarantees at least one band,
+	 * set this very early because much code assumes
+	 * that hw.conf.channel is assigned
+	 */
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		struct ieee80211_supported_band *sband;
+
+		sband = local->hw.wiphy->bands[band];
+		if (sband) {
+			/* init channel we're on */
+			local->hw.conf.channel =
+			local->oper_channel =
+			local->scan_channel = &sband->channels[0];
+			break;
+		}
+	}
 
 	result = wiphy_register(local->hw.wiphy);
 	if (result < 0)
 		return result;
 
+	/* for now, mdev needs sub_if_data :/ */
+	mdev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
+			    "wmaster%d", ether_setup);
+	if (!mdev)
+		goto fail_mdev_alloc;
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(mdev);
+	mdev->ieee80211_ptr = &sdata->wdev;
+	sdata->wdev.wiphy = local->hw.wiphy;
+
+	local->mdev = mdev;
+
+	ieee80211_rx_bss_list_init(mdev);
+
+	mdev->hard_start_xmit = ieee80211_master_start_xmit;
+	mdev->open = ieee80211_master_open;
+	mdev->stop = ieee80211_master_stop;
+	mdev->type = ARPHRD_IEEE80211;
+	mdev->header_ops = &ieee80211_header_ops;
+	mdev->set_multicast_list = ieee80211_master_set_multicast_list;
+
+	sdata->vif.type = IEEE80211_IF_TYPE_AP;
+	sdata->dev = mdev;
+	sdata->local = local;
+	sdata->u.ap.force_unicast_rateidx = -1;
+	sdata->u.ap.max_ratectrl_rateidx = -1;
+	ieee80211_if_sdata_init(sdata);
+
+	/* no RCU needed since we're still during init phase */
+	list_add_tail(&sdata->list, &local->interfaces);
+
 	name = wiphy_dev(local->hw.wiphy)->driver->name;
 	local->hw.workqueue = create_singlethread_workqueue(name);
 	if (!local->hw.workqueue) {
@@ -1215,7 +1738,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
 	/* add one default STA interface */
 	result = ieee80211_if_add(local->mdev, "wlan%d", NULL,
-				  IEEE80211_IF_TYPE_STA);
+				  IEEE80211_IF_TYPE_STA, NULL);
 	if (result)
 		printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
 		       wiphy_name(local->hw.wiphy));
@@ -1239,49 +1762,18 @@ fail_sta_info:
 	debugfs_hw_del(local);
 	destroy_workqueue(local->hw.workqueue);
 fail_workqueue:
+	ieee80211_if_free(local->mdev);
+	local->mdev = NULL;
+fail_mdev_alloc:
 	wiphy_unregister(local->hw.wiphy);
 	return result;
 }
 EXPORT_SYMBOL(ieee80211_register_hw);
 
-int ieee80211_register_hwmode(struct ieee80211_hw *hw,
-			      struct ieee80211_hw_mode *mode)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct ieee80211_rate *rate;
-	int i;
-
-	INIT_LIST_HEAD(&mode->list);
-	list_add_tail(&mode->list, &local->modes_list);
-
-	local->hw_modes |= (1 << mode->mode);
-	for (i = 0; i < mode->num_rates; i++) {
-		rate = &(mode->rates[i]);
-		rate->rate_inv = CHAN_UTIL_RATE_LCM / rate->rate;
-	}
-	ieee80211_prepare_rates(local, mode);
-
-	if (!local->oper_hw_mode) {
-		/* Default to this mode */
-		local->hw.conf.phymode = mode->mode;
-		local->oper_hw_mode = local->scan_hw_mode = mode;
-		local->oper_channel = local->scan_channel = &mode->channels[0];
-		local->hw.conf.mode = local->oper_hw_mode;
-		local->hw.conf.chan = local->oper_channel;
-	}
-
-	if (!(hw->flags & IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED))
-		ieee80211_set_default_regdomain(mode);
-
-	return 0;
-}
-EXPORT_SYMBOL(ieee80211_register_hwmode);
-
 void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata, *tmp;
-	int i;
 
 	tasklet_kill(&local->tx_pending_tasklet);
 	tasklet_kill(&local->tasklet);
@@ -1322,11 +1814,6 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 	rate_control_deinitialize(local);
 	debugfs_hw_del(local);
 
-	for (i = 0; i < NUM_IEEE80211_MODES; i++) {
-		kfree(local->supp_rates[i]);
-		kfree(local->basic_rates[i]);
-	}
-
 	if (skb_queue_len(&local->skb_queue)
 			|| skb_queue_len(&local->skb_queue_unreliable))
 		printk(KERN_WARNING "%s: skb_queue not empty\n",
@@ -1338,6 +1825,8 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw)
 	wiphy_unregister(local->hw.wiphy);
 	ieee80211_wep_free(local);
 	ieee80211_led_exit(local);
+	ieee80211_if_free(local->mdev);
+	local->mdev = NULL;
 }
 EXPORT_SYMBOL(ieee80211_unregister_hw);
 
@@ -1345,7 +1834,6 @@ void ieee80211_free_hw(struct ieee80211_hw *hw)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
-	ieee80211_if_free(local->mdev);
 	wiphy_free(local->hw.wiphy);
 }
 EXPORT_SYMBOL(ieee80211_free_hw);
@@ -1357,13 +1845,9 @@ static int __init ieee80211_init(void)
 
 	BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb));
 
-	ret = rc80211_simple_init();
-	if (ret)
-		goto out;
-
 	ret = rc80211_pid_init();
 	if (ret)
-		goto out_cleanup_simple;
+		goto out;
 
 	ret = ieee80211_wme_register();
 	if (ret) {
@@ -1373,23 +1857,28 @@ static int __init ieee80211_init(void)
 	}
 
 	ieee80211_debugfs_netdev_init();
-	ieee80211_regdomain_init();
 
 	return 0;
 
  out_cleanup_pid:
 	rc80211_pid_exit();
- out_cleanup_simple:
-	rc80211_simple_exit();
  out:
 	return ret;
 }
 
 static void __exit ieee80211_exit(void)
 {
-	rc80211_simple_exit();
 	rc80211_pid_exit();
 
+	/*
+	 * For key todo, it'll be empty by now but the work
+	 * might still be scheduled.
+	 */
+	flush_scheduled_work();
+
+	if (mesh_allocated)
+		ieee80211s_stop();
+
 	ieee80211_wme_unregister();
 	ieee80211_debugfs_netdev_exit();
 }
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
new file mode 100644
index 000000000000..594a3356a508
--- /dev/null
+++ b/net/mac80211/mesh.c
@@ -0,0 +1,449 @@
+/*
+ * Copyright (c) 2008 open80211s Ltd.
+ * Authors:    Luis Carlos Cobo <luisca@cozybit.com>
+ * 	       Javier Cardona <javier@cozybit.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "ieee80211_i.h"
+#include "mesh.h"
+
+#define PP_OFFSET 	1		/* Path Selection Protocol */
+#define PM_OFFSET	5		/* Path Selection Metric   */
+#define CC_OFFSET	9		/* Congestion Control Mode */
+#define CAPAB_OFFSET 17
+#define ACCEPT_PLINKS 0x80
+
+int mesh_allocated;
+static struct kmem_cache *rm_cache;
+
+void ieee80211s_init(void)
+{
+	mesh_pathtbl_init();
+	mesh_allocated = 1;
+	rm_cache = kmem_cache_create("mesh_rmc", sizeof(struct rmc_entry),
+				     0, 0, NULL);
+}
+
+void ieee80211s_stop(void)
+{
+	mesh_pathtbl_unregister();
+	kmem_cache_destroy(rm_cache);
+}
+
+/**
+ * mesh_matches_local - check if the config of a mesh point matches ours
+ *
+ * @ie: information elements of a management frame from the mesh peer
+ * @dev: local mesh interface
+ *
+ * This function checks if the mesh configuration of a mesh point matches the
+ * local mesh configuration, i.e. if both nodes belong to the same mesh network.
+ */
+bool mesh_matches_local(struct ieee802_11_elems *ie, struct net_device *dev)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_if_sta *sta = &sdata->u.sta;
+
+	/*
+	 * As support for each feature is added, check for matching
+	 * - On mesh config capabilities
+	 *   - Power Save Support En
+	 *   - Sync support enabled
+	 *   - Sync support active
+	 *   - Sync support required from peer
+	 *   - MDA enabled
+	 * - Power management control on fc
+	 */
+	if (sta->mesh_id_len == ie->mesh_id_len &&
+		memcmp(sta->mesh_id, ie->mesh_id, ie->mesh_id_len) == 0 &&
+		memcmp(sta->mesh_pp_id, ie->mesh_config + PP_OFFSET, 4) == 0 &&
+		memcmp(sta->mesh_pm_id, ie->mesh_config + PM_OFFSET, 4) == 0 &&
+		memcmp(sta->mesh_cc_id, ie->mesh_config + CC_OFFSET, 4) == 0)
+		return true;
+
+	return false;
+}
+
+/**
+ * mesh_peer_accepts_plinks - check if an mp is willing to establish peer links
+ *
+ * @ie: information elements of a management frame from the mesh peer
+ * @dev: local mesh interface
+ */
+bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie,
+			      struct net_device *dev)
+{
+	return (*(ie->mesh_config + CAPAB_OFFSET) & ACCEPT_PLINKS) != 0;
+}
+
+/**
+ * mesh_accept_plinks_update: update accepting_plink in local mesh beacons
+ *
+ * @sdata: mesh interface in which mesh beacons are going to be updated
+ */
+void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata)
+{
+	bool free_plinks;
+
+	/* In case mesh_plink_free_count > 0 and mesh_plinktbl_capacity == 0,
+	 * the mesh interface might be able to establish plinks with peers that
+	 * are already on the table but are not on PLINK_ESTAB state. However,
+	 * in general the mesh interface is not accepting peer link requests
+	 * from new peers, and that must be reflected in the beacon
+	 */
+	free_plinks = mesh_plink_availables(sdata);
+
+	if (free_plinks != sdata->u.sta.accepting_plinks)
+		ieee80211_sta_timer((unsigned long) sdata);
+}
+
+void mesh_ids_set_default(struct ieee80211_if_sta *sta)
+{
+	u8 def_id[4] = {0x00, 0x0F, 0xAC, 0xff};
+
+	memcpy(sta->mesh_pp_id, def_id, 4);
+	memcpy(sta->mesh_pm_id, def_id, 4);
+	memcpy(sta->mesh_cc_id, def_id, 4);
+}
+
+int mesh_rmc_init(struct net_device *dev)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	int i;
+
+	sdata->u.sta.rmc = kmalloc(sizeof(struct mesh_rmc), GFP_KERNEL);
+	if (!sdata->u.sta.rmc)
+		return -ENOMEM;
+	sdata->u.sta.rmc->idx_mask = RMC_BUCKETS - 1;
+	for (i = 0; i < RMC_BUCKETS; i++)
+		INIT_LIST_HEAD(&sdata->u.sta.rmc->bucket[i].list);
+	return 0;
+}
+
+void mesh_rmc_free(struct net_device *dev)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct mesh_rmc *rmc = sdata->u.sta.rmc;
+	struct rmc_entry *p, *n;
+	int i;
+
+	if (!sdata->u.sta.rmc)
+		return;
+
+	for (i = 0; i < RMC_BUCKETS; i++)
+		list_for_each_entry_safe(p, n, &rmc->bucket[i].list, list) {
+			list_del(&p->list);
+			kmem_cache_free(rm_cache, p);
+		}
+
+	kfree(rmc);
+	sdata->u.sta.rmc = NULL;
+}
+
+/**
+ * mesh_rmc_check - Check frame in recent multicast cache and add if absent.
+ *
+ * @sa:		source address
+ * @mesh_hdr:	mesh_header
+ *
+ * Returns: 0 if the frame is not in the cache, nonzero otherwise.
+ *
+ * Checks using the source address and the mesh sequence number if we have
+ * received this frame lately. If the frame is not in the cache, it is added to
+ * it.
+ */
+int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr,
+		   struct net_device *dev)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct mesh_rmc *rmc = sdata->u.sta.rmc;
+	u32 seqnum = 0;
+	int entries = 0;
+	u8 idx;
+	struct rmc_entry *p, *n;
+
+	/* Don't care about endianness since only match matters */
+	memcpy(&seqnum, mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum));
+	idx = mesh_hdr->seqnum[0] & rmc->idx_mask;
+	list_for_each_entry_safe(p, n, &rmc->bucket[idx].list, list) {
+		++entries;
+		if (time_after(jiffies, p->exp_time) ||
+				(entries == RMC_QUEUE_MAX_LEN)) {
+			list_del(&p->list);
+			kmem_cache_free(rm_cache, p);
+			--entries;
+		} else if ((seqnum == p->seqnum)
+				&& (memcmp(sa, p->sa, ETH_ALEN) == 0))
+			return -1;
+	}
+
+	p = kmem_cache_alloc(rm_cache, GFP_ATOMIC);
+	if (!p) {
+		printk(KERN_DEBUG "o11s: could not allocate RMC entry\n");
+		return 0;
+	}
+	p->seqnum = seqnum;
+	p->exp_time = jiffies + RMC_TIMEOUT;
+	memcpy(p->sa, sa, ETH_ALEN);
+	list_add(&p->list, &rmc->bucket[idx].list);
+	return 0;
+}
+
+void mesh_mgmt_ies_add(struct sk_buff *skb, struct net_device *dev)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_supported_band *sband;
+	u8 *pos;
+	int len, i, rate;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+	len = sband->n_bitrates;
+	if (len > 8)
+		len = 8;
+	pos = skb_put(skb, len + 2);
+	*pos++ = WLAN_EID_SUPP_RATES;
+	*pos++ = len;
+	for (i = 0; i < len; i++) {
+		rate = sband->bitrates[i].bitrate;
+		*pos++ = (u8) (rate / 5);
+	}
+
+	if (sband->n_bitrates > len) {
+		pos = skb_put(skb, sband->n_bitrates - len + 2);
+		*pos++ = WLAN_EID_EXT_SUPP_RATES;
+		*pos++ = sband->n_bitrates - len;
+		for (i = len; i < sband->n_bitrates; i++) {
+			rate = sband->bitrates[i].bitrate;
+			*pos++ = (u8) (rate / 5);
+		}
+	}
+
+	pos = skb_put(skb, 2 + sdata->u.sta.mesh_id_len);
+	*pos++ = WLAN_EID_MESH_ID;
+	*pos++ = sdata->u.sta.mesh_id_len;
+	if (sdata->u.sta.mesh_id_len)
+		memcpy(pos, sdata->u.sta.mesh_id, sdata->u.sta.mesh_id_len);
+
+	pos = skb_put(skb, 21);
+	*pos++ = WLAN_EID_MESH_CONFIG;
+	*pos++ = MESH_CFG_LEN;
+	/* Version */
+	*pos++ = 1;
+
+	/* Active path selection protocol ID */
+	memcpy(pos, sdata->u.sta.mesh_pp_id, 4);
+	pos += 4;
+
+	/* Active path selection metric ID   */
+	memcpy(pos, sdata->u.sta.mesh_pm_id, 4);
+	pos += 4;
+
+	/* Congestion control mode identifier */
+	memcpy(pos, sdata->u.sta.mesh_cc_id, 4);
+	pos += 4;
+
+	/* Channel precedence:
+	 * Not running simple channel unification protocol
+	 */
+	memset(pos, 0x00, 4);
+	pos += 4;
+
+	/* Mesh capability */
+	sdata->u.sta.accepting_plinks = mesh_plink_availables(sdata);
+	*pos++ = sdata->u.sta.accepting_plinks ? ACCEPT_PLINKS : 0x00;
+	*pos++ = 0x00;
+
+	return;
+}
+
+u32 mesh_table_hash(u8 *addr, struct net_device *dev, struct mesh_table *tbl)
+{
+	/* Use last four bytes of hw addr and interface index as hash index */
+	return jhash_2words(*(u32 *)(addr+2), dev->ifindex, tbl->hash_rnd)
+		& tbl->hash_mask;
+}
+
+u8 mesh_id_hash(u8 *mesh_id, int mesh_id_len)
+{
+	if (!mesh_id_len)
+		return 1;
+	else if (mesh_id_len == 1)
+		return (u8) mesh_id[0];
+	else
+		return (u8) (mesh_id[0] + 2 * mesh_id[1]);
+}
+
+struct mesh_table *mesh_table_alloc(int size_order)
+{
+	int i;
+	struct mesh_table *newtbl;
+
+	newtbl = kmalloc(sizeof(struct mesh_table), GFP_KERNEL);
+	if (!newtbl)
+		return NULL;
+
+	newtbl->hash_buckets = kzalloc(sizeof(struct hlist_head) *
+			(1 << size_order), GFP_KERNEL);
+
+	if (!newtbl->hash_buckets) {
+		kfree(newtbl);
+		return NULL;
+	}
+
+	newtbl->hashwlock = kmalloc(sizeof(spinlock_t) *
+			(1 << size_order), GFP_KERNEL);
+	if (!newtbl->hashwlock) {
+		kfree(newtbl->hash_buckets);
+		kfree(newtbl);
+		return NULL;
+	}
+
+	newtbl->size_order = size_order;
+	newtbl->hash_mask = (1 << size_order) - 1;
+	atomic_set(&newtbl->entries,  0);
+	get_random_bytes(&newtbl->hash_rnd,
+			sizeof(newtbl->hash_rnd));
+	for (i = 0; i <= newtbl->hash_mask; i++)
+		spin_lock_init(&newtbl->hashwlock[i]);
+
+	return newtbl;
+}
+
+void mesh_table_free(struct mesh_table *tbl, bool free_leafs)
+{
+	struct hlist_head *mesh_hash;
+	struct hlist_node *p, *q;
+	int i;
+
+	mesh_hash = tbl->hash_buckets;
+	for (i = 0; i <= tbl->hash_mask; i++) {
+		spin_lock(&tbl->hashwlock[i]);
+		hlist_for_each_safe(p, q, &mesh_hash[i]) {
+			tbl->free_node(p, free_leafs);
+			atomic_dec(&tbl->entries);
+		}
+		spin_unlock(&tbl->hashwlock[i]);
+	}
+	kfree(tbl->hash_buckets);
+	kfree(tbl->hashwlock);
+	kfree(tbl);
+}
+
+static void ieee80211_mesh_path_timer(unsigned long data)
+{
+	struct ieee80211_sub_if_data *sdata =
+		(struct ieee80211_sub_if_data *) data;
+	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct ieee80211_local *local = wdev_priv(&sdata->wdev);
+
+	queue_work(local->hw.workqueue, &ifsta->work);
+}
+
+struct mesh_table *mesh_table_grow(struct mesh_table *tbl)
+{
+	struct mesh_table *newtbl;
+	struct hlist_head *oldhash;
+	struct hlist_node *p;
+	int err = 0;
+	int i;
+
+	if (atomic_read(&tbl->entries)
+			< tbl->mean_chain_len * (tbl->hash_mask + 1)) {
+		err = -EPERM;
+		goto endgrow;
+	}
+
+	newtbl = mesh_table_alloc(tbl->size_order + 1);
+	if (!newtbl) {
+		err = -ENOMEM;
+		goto endgrow;
+	}
+
+	newtbl->free_node = tbl->free_node;
+	newtbl->mean_chain_len = tbl->mean_chain_len;
+	newtbl->copy_node = tbl->copy_node;
+	atomic_set(&newtbl->entries, atomic_read(&tbl->entries));
+
+	oldhash = tbl->hash_buckets;
+	for (i = 0; i <= tbl->hash_mask; i++)
+		hlist_for_each(p, &oldhash[i])
+			tbl->copy_node(p, newtbl);
+
+endgrow:
+	if (err)
+		return NULL;
+	else
+		return newtbl;
+}
+
+/**
+ * ieee80211_new_mesh_header - create a new mesh header
+ * @meshhdr:    uninitialized mesh header
+ * @sdata:	mesh interface to be used
+ *
+ * Return the header length.
+ */
+int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
+		struct ieee80211_sub_if_data *sdata)
+{
+	meshhdr->flags = 0;
+	meshhdr->ttl = sdata->u.sta.mshcfg.dot11MeshTTL;
+
+	meshhdr->seqnum[0] = sdata->u.sta.mesh_seqnum[0]++;
+	meshhdr->seqnum[1] = sdata->u.sta.mesh_seqnum[1];
+	meshhdr->seqnum[2] = sdata->u.sta.mesh_seqnum[2];
+
+	if (sdata->u.sta.mesh_seqnum[0] == 0) {
+		sdata->u.sta.mesh_seqnum[1]++;
+		if (sdata->u.sta.mesh_seqnum[1] == 0)
+			sdata->u.sta.mesh_seqnum[2]++;
+	}
+
+	return 5;
+}
+
+void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+
+	ifsta->mshcfg.dot11MeshRetryTimeout = MESH_RET_T;
+	ifsta->mshcfg.dot11MeshConfirmTimeout = MESH_CONF_T;
+	ifsta->mshcfg.dot11MeshHoldingTimeout = MESH_HOLD_T;
+	ifsta->mshcfg.dot11MeshMaxRetries = MESH_MAX_RETR;
+	ifsta->mshcfg.dot11MeshTTL = MESH_TTL;
+	ifsta->mshcfg.auto_open_plinks = true;
+	ifsta->mshcfg.dot11MeshMaxPeerLinks =
+		MESH_MAX_ESTAB_PLINKS;
+	ifsta->mshcfg.dot11MeshHWMPactivePathTimeout =
+		MESH_PATH_TIMEOUT;
+	ifsta->mshcfg.dot11MeshHWMPpreqMinInterval =
+		MESH_PREQ_MIN_INT;
+	ifsta->mshcfg.dot11MeshHWMPnetDiameterTraversalTime =
+		MESH_DIAM_TRAVERSAL_TIME;
+	ifsta->mshcfg.dot11MeshHWMPmaxPREQretries =
+		MESH_MAX_PREQ_RETRIES;
+	ifsta->mshcfg.path_refresh_time =
+		MESH_PATH_REFRESH_TIME;
+	ifsta->mshcfg.min_discovery_timeout =
+		MESH_MIN_DISCOVERY_TIMEOUT;
+	ifsta->accepting_plinks = true;
+	ifsta->preq_id = 0;
+	ifsta->dsn = 0;
+	atomic_set(&ifsta->mpaths, 0);
+	mesh_rmc_init(sdata->dev);
+	ifsta->last_preq = jiffies;
+	/* Allocate all mesh structures when creating the first mesh interface. */
+	if (!mesh_allocated)
+		ieee80211s_init();
+	mesh_ids_set_default(ifsta);
+	setup_timer(&ifsta->mesh_path_timer,
+		    ieee80211_mesh_path_timer,
+		    (unsigned long) sdata);
+	INIT_LIST_HEAD(&ifsta->preq_queue.list);
+	spin_lock_init(&ifsta->mesh_preq_queue_lock);
+}
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
new file mode 100644
index 000000000000..742003d3a841
--- /dev/null
+++ b/net/mac80211/mesh.h
@@ -0,0 +1,290 @@
+/*
+ * Copyright (c) 2008 open80211s Ltd.
+ * Authors:    Luis Carlos Cobo <luisca@cozybit.com>
+ *             Javier Cardona <javier@cozybit.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef IEEE80211S_H
+#define IEEE80211S_H
+
+#include <linux/types.h>
+#include <linux/jhash.h>
+#include "ieee80211_i.h"
+
+
+/* Data structures */
+
+/**
+ * enum mesh_path_flags - mac80211 mesh path flags
+ *
+ *
+ *
+ * @MESH_PATH_ACTIVE: the mesh path is can be used for forwarding
+ * @MESH_PATH_RESOLVED: the discovery process is running for this mesh path
+ * @MESH_PATH_DSN_VALID: the mesh path contains a valid destination sequence
+ * 	number
+ * @MESH_PATH_FIXED: the mesh path has been manually set and should not be
+ * 	modified
+ * @MESH_PATH_RESOLVED: the mesh path can has been resolved
+ *
+ * MESH_PATH_RESOLVED and MESH_PATH_DELETE are used by the mesh path timer to
+ * decide when to stop or cancel the mesh path discovery.
+ */
+enum mesh_path_flags {
+	MESH_PATH_ACTIVE =	BIT(0),
+	MESH_PATH_RESOLVING =	BIT(1),
+	MESH_PATH_DSN_VALID =	BIT(2),
+	MESH_PATH_FIXED	=	BIT(3),
+	MESH_PATH_RESOLVED =	BIT(4),
+};
+
+/**
+ * struct mesh_path - mac80211 mesh path structure
+ *
+ * @dst: mesh path destination mac address
+ * @dev: mesh path device
+ * @next_hop: mesh neighbor to which frames for this destination will be
+ * 	forwarded
+ * @timer: mesh path discovery timer
+ * @frame_queue: pending queue for frames sent to this destination while the
+ * 	path is unresolved
+ * @dsn: destination sequence number of the destination
+ * @metric: current metric to this destination
+ * @hop_count: hops to destination
+ * @exp_time: in jiffies, when the path will expire or when it expired
+ * @discovery_timeout: timeout (lapse in jiffies) used for the last discovery
+ * 	retry
+ * @discovery_retries: number of discovery retries
+ * @flags: mesh path flags, as specified on &enum mesh_path_flags
+ * @state_lock: mesh pat state lock
+ *
+ *
+ * The combination of dst and dev is unique in the mesh path table. Since the
+ * next_hop STA is only protected by RCU as well, deleting the STA must also
+ * remove/substitute the mesh_path structure and wait until that is no longer
+ * reachable before destroying the STA completely.
+ */
+struct mesh_path {
+	u8 dst[ETH_ALEN];
+	struct net_device *dev;
+	struct sta_info *next_hop;
+	struct timer_list timer;
+	struct sk_buff_head frame_queue;
+	struct rcu_head rcu;
+	u32 dsn;
+	u32 metric;
+	u8 hop_count;
+	unsigned long exp_time;
+	u32 discovery_timeout;
+	u8 discovery_retries;
+	enum mesh_path_flags flags;
+	spinlock_t state_lock;
+};
+
+/**
+ * struct mesh_table
+ *
+ * @hash_buckets: array of hash buckets of the table
+ * @hashwlock: array of locks to protect write operations, one per bucket
+ * @hash_mask: 2^size_order - 1, used to compute hash idx
+ * @hash_rnd: random value used for hash computations
+ * @entries: number of entries in the table
+ * @free_node: function to free nodes of the table
+ * @copy_node: fuction to copy nodes of the table
+ * @size_order: determines size of the table, there will be 2^size_order hash
+ *	buckets
+ * @mean_chain_len: maximum average length for the hash buckets' list, if it is
+ *	reached, the table will grow
+ */
+struct mesh_table {
+	/* Number of buckets will be 2^N */
+	struct hlist_head *hash_buckets;
+	spinlock_t *hashwlock;		/* One per bucket, for add/del */
+	unsigned int hash_mask;		/* (2^size_order) - 1 */
+	__u32 hash_rnd;			/* Used for hash generation */
+	atomic_t entries;		/* Up to MAX_MESH_NEIGHBOURS */
+	void (*free_node) (struct hlist_node *p, bool free_leafs);
+	void (*copy_node) (struct hlist_node *p, struct mesh_table *newtbl);
+	int size_order;
+	int mean_chain_len;
+};
+
+/* Recent multicast cache */
+/* RMC_BUCKETS must be a power of 2, maximum 256 */
+#define RMC_BUCKETS		256
+#define RMC_QUEUE_MAX_LEN	4
+#define RMC_TIMEOUT		(3 * HZ)
+
+/**
+ * struct rmc_entry - entry in the Recent Multicast Cache
+ *
+ * @seqnum: mesh sequence number of the frame
+ * @exp_time: expiration time of the entry, in jiffies
+ * @sa: source address of the frame
+ *
+ * The Recent Multicast Cache keeps track of the latest multicast frames that
+ * have been received by a mesh interface and discards received multicast frames
+ * that are found in the cache.
+ */
+struct rmc_entry {
+	struct list_head list;
+	u32 seqnum;
+	unsigned long exp_time;
+	u8 sa[ETH_ALEN];
+};
+
+struct mesh_rmc {
+	struct rmc_entry bucket[RMC_BUCKETS];
+	u8 idx_mask;
+};
+
+
+/* Mesh IEs constants */
+#define MESH_CFG_LEN		19
+
+/*
+ * MESH_CFG_COMP_LEN Includes:
+ * 	- Active path selection protocol ID.
+ * 	- Active path selection metric ID.
+ * 	- Congestion control mode identifier.
+ * 	- Channel precedence.
+ * Does not include mesh capabilities, which may vary across nodes in the same
+ * mesh
+ */
+#define MESH_CFG_CMP_LEN 	17
+
+/* Default values, timeouts in ms */
+#define MESH_TTL 		5
+#define MESH_MAX_RETR	 	3
+#define MESH_RET_T 		100
+#define MESH_CONF_T 		100
+#define MESH_HOLD_T 		100
+
+#define MESH_PATH_TIMEOUT	5000
+/* Minimum interval between two consecutive PREQs originated by the same
+ * interface
+ */
+#define MESH_PREQ_MIN_INT	10
+#define MESH_DIAM_TRAVERSAL_TIME 50
+/* Paths will be refreshed if they are closer than PATH_REFRESH_TIME to their
+ * expiration
+ */
+#define MESH_PATH_REFRESH_TIME			1000
+#define MESH_MIN_DISCOVERY_TIMEOUT (2 * MESH_DIAM_TRAVERSAL_TIME)
+
+#define MESH_MAX_PREQ_RETRIES 4
+#define MESH_PATH_EXPIRE (600 * HZ)
+
+/* Default maximum number of established plinks per interface */
+#define MESH_MAX_ESTAB_PLINKS	32
+
+/* Default maximum number of plinks per interface */
+#define MESH_MAX_PLINKS		256
+
+/* Maximum number of paths per interface */
+#define MESH_MAX_MPATHS		1024
+
+/* Pending ANA approval */
+#define PLINK_CATEGORY		30
+#define MESH_PATH_SEL_CATEGORY	32
+
+/* Mesh Header Flags */
+#define IEEE80211S_FLAGS_AE	0x3
+
+/* Public interfaces */
+/* Various */
+u8 mesh_id_hash(u8 *mesh_id, int mesh_id_len);
+int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr);
+int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
+		struct ieee80211_sub_if_data *sdata);
+int mesh_rmc_check(u8 *addr, struct ieee80211s_hdr *mesh_hdr,
+		struct net_device *dev);
+bool mesh_matches_local(struct ieee802_11_elems *ie, struct net_device *dev);
+void mesh_ids_set_default(struct ieee80211_if_sta *sta);
+void mesh_mgmt_ies_add(struct sk_buff *skb, struct net_device *dev);
+void mesh_rmc_free(struct net_device *dev);
+int mesh_rmc_init(struct net_device *dev);
+void ieee80211s_init(void);
+void ieee80211s_stop(void);
+void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata);
+
+/* Mesh paths */
+int mesh_nexthop_lookup(u8 *next_hop, struct sk_buff *skb,
+		struct net_device *dev);
+void mesh_path_start_discovery(struct net_device *dev);
+struct mesh_path *mesh_path_lookup(u8 *dst, struct net_device *dev);
+struct mesh_path *mesh_path_lookup_by_idx(int idx, struct net_device *dev);
+void mesh_path_fix_nexthop(struct mesh_path *mpath, struct sta_info *next_hop);
+void mesh_path_expire(struct net_device *dev);
+void mesh_path_flush(struct net_device *dev);
+void mesh_rx_path_sel_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
+		size_t len);
+int mesh_path_add(u8 *dst, struct net_device *dev);
+/* Mesh plinks */
+void mesh_neighbour_update(u8 *hw_addr, u64 rates, struct net_device *dev,
+		bool add);
+bool mesh_peer_accepts_plinks(struct ieee802_11_elems *ie,
+			      struct net_device *dev);
+void mesh_accept_plinks_update(struct ieee80211_sub_if_data *sdata);
+void mesh_plink_broken(struct sta_info *sta);
+void mesh_plink_deactivate(struct sta_info *sta);
+int mesh_plink_open(struct sta_info *sta);
+int mesh_plink_close(struct sta_info *sta);
+void mesh_plink_block(struct sta_info *sta);
+void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
+			 size_t len, struct ieee80211_rx_status *rx_status);
+
+/* Private interfaces */
+/* Mesh tables */
+struct mesh_table *mesh_table_alloc(int size_order);
+void mesh_table_free(struct mesh_table *tbl, bool free_leafs);
+struct mesh_table *mesh_table_grow(struct mesh_table *tbl);
+u32 mesh_table_hash(u8 *addr, struct net_device *dev, struct mesh_table *tbl);
+/* Mesh paths */
+int mesh_path_error_tx(u8 *dest, __le32 dest_dsn, u8 *ra,
+		struct net_device *dev);
+void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta);
+void mesh_path_flush_pending(struct mesh_path *mpath);
+void mesh_path_tx_pending(struct mesh_path *mpath);
+int mesh_pathtbl_init(void);
+void mesh_pathtbl_unregister(void);
+int mesh_path_del(u8 *addr, struct net_device *dev);
+void mesh_path_timer(unsigned long data);
+void mesh_path_flush_by_nexthop(struct sta_info *sta);
+void mesh_path_discard_frame(struct sk_buff *skb, struct net_device *dev);
+
+#ifdef CONFIG_MAC80211_MESH
+extern int mesh_allocated;
+
+static inline int mesh_plink_free_count(struct ieee80211_sub_if_data *sdata)
+{
+	return sdata->u.sta.mshcfg.dot11MeshMaxPeerLinks -
+	       atomic_read(&sdata->u.sta.mshstats.estab_plinks);
+}
+
+static inline bool mesh_plink_availables(struct ieee80211_sub_if_data *sdata)
+{
+	return (min_t(long, mesh_plink_free_count(sdata),
+		   MESH_MAX_PLINKS - sdata->local->num_sta)) > 0;
+}
+
+static inline void mesh_path_activate(struct mesh_path *mpath)
+{
+	mpath->flags |= MESH_PATH_ACTIVE | MESH_PATH_RESOLVED;
+}
+
+#define for_each_mesh_entry(x, p, node, i) \
+	for (i = 0; i <= x->hash_mask; i++) \
+		hlist_for_each_entry_rcu(node, p, &x->hash_buckets[i], list)
+
+#else
+#define mesh_allocated	0
+#endif
+
+#define MESH_PREQ(skb)	(skb->cb + 30)
+
+#endif /* IEEE80211S_H */
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
new file mode 100644
index 000000000000..02de8f1522a3
--- /dev/null
+++ b/net/mac80211/mesh_hwmp.c
@@ -0,0 +1,855 @@
+/*
+ * Copyright (c) 2008 open80211s Ltd.
+ * Author:     Luis Carlos Cobo <luisca@cozybit.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <asm/unaligned.h>
+#include "mesh.h"
+
+#define TEST_FRAME_LEN	8192
+#define MAX_METRIC	0xffffffff
+#define ARITH_SHIFT	8
+
+/* Number of frames buffered per destination for unresolved destinations */
+#define MESH_FRAME_QUEUE_LEN	10
+#define MAX_PREQ_QUEUE_LEN	64
+
+/* Destination only */
+#define MP_F_DO	0x1
+/* Reply and forward */
+#define MP_F_RF	0x2
+
+static inline u32 u32_field_get(u8 *preq_elem, int offset, bool ae)
+{
+	if (ae)
+		offset += 6;
+	return le32_to_cpu(get_unaligned((__le32 *) (preq_elem + offset)));
+}
+
+/* HWMP IE processing macros */
+#define AE_F			(1<<6)
+#define AE_F_SET(x)		(*x & AE_F)
+#define PREQ_IE_FLAGS(x)	(*(x))
+#define PREQ_IE_HOPCOUNT(x)	(*(x + 1))
+#define PREQ_IE_TTL(x)		(*(x + 2))
+#define PREQ_IE_PREQ_ID(x)	u32_field_get(x, 3, 0)
+#define PREQ_IE_ORIG_ADDR(x)	(x + 7)
+#define PREQ_IE_ORIG_DSN(x)	u32_field_get(x, 13, 0);
+#define PREQ_IE_LIFETIME(x)	u32_field_get(x, 17, AE_F_SET(x));
+#define PREQ_IE_METRIC(x) 	u32_field_get(x, 21, AE_F_SET(x));
+#define PREQ_IE_DST_F(x)	(*(AE_F_SET(x) ? x + 32 : x + 26))
+#define PREQ_IE_DST_ADDR(x) 	(AE_F_SET(x) ? x + 33 : x + 27)
+#define PREQ_IE_DST_DSN(x) 	u32_field_get(x, 33, AE_F_SET(x));
+
+
+#define PREP_IE_FLAGS(x)	PREQ_IE_FLAGS(x)
+#define PREP_IE_HOPCOUNT(x)	PREQ_IE_HOPCOUNT(x)
+#define PREP_IE_TTL(x)		PREQ_IE_TTL(x)
+#define PREP_IE_ORIG_ADDR(x)	(x + 3)
+#define PREP_IE_ORIG_DSN(x)	u32_field_get(x, 9, 0);
+#define PREP_IE_LIFETIME(x)	u32_field_get(x, 13, AE_F_SET(x));
+#define PREP_IE_METRIC(x)	u32_field_get(x, 17, AE_F_SET(x));
+#define PREP_IE_DST_ADDR(x)	(AE_F_SET(x) ? x + 27 : x + 21)
+#define PREP_IE_DST_DSN(x)	u32_field_get(x, 27, AE_F_SET(x));
+
+#define PERR_IE_DST_ADDR(x)	(x + 2)
+#define PERR_IE_DST_DSN(x)	u32_field_get(x, 8, 0);
+
+#define TU_TO_EXP_TIME(x) (jiffies + msecs_to_jiffies(x * 1024 / 1000))
+#define MSEC_TO_TU(x) (x*1000/1024)
+#define DSN_GT(x, y) ((long) (y) - (long) (x) < 0)
+#define DSN_LT(x, y) ((long) (x) - (long) (y) < 0)
+
+#define net_traversal_jiffies(s) \
+	msecs_to_jiffies(s->u.sta.mshcfg.dot11MeshHWMPnetDiameterTraversalTime)
+#define default_lifetime(s) \
+	MSEC_TO_TU(s->u.sta.mshcfg.dot11MeshHWMPactivePathTimeout)
+#define min_preq_int_jiff(s) \
+	(msecs_to_jiffies(s->u.sta.mshcfg.dot11MeshHWMPpreqMinInterval))
+#define max_preq_retries(s) (s->u.sta.mshcfg.dot11MeshHWMPmaxPREQretries)
+#define disc_timeout_jiff(s) \
+	msecs_to_jiffies(sdata->u.sta.mshcfg.min_discovery_timeout)
+
+enum mpath_frame_type {
+	MPATH_PREQ = 0,
+	MPATH_PREP,
+	MPATH_PERR
+};
+
+static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
+		u8 *orig_addr, __le32 orig_dsn, u8 dst_flags, u8 *dst,
+		__le32 dst_dsn, u8 *da, u8 hop_count, u8 ttl, __le32 lifetime,
+		__le32 metric, __le32 preq_id, struct net_device *dev)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
+	struct ieee80211_mgmt *mgmt;
+	u8 *pos;
+	int ie_len;
+
+	if (!skb)
+		return -1;
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+	/* 25 is the size of the common mgmt part (24) plus the size of the
+	 * common action part (1)
+	 */
+	mgmt = (struct ieee80211_mgmt *)
+		skb_put(skb, 25 + sizeof(mgmt->u.action.u.mesh_action));
+	memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.mesh_action));
+	mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+					   IEEE80211_STYPE_ACTION);
+
+	memcpy(mgmt->da, da, ETH_ALEN);
+	memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+	/* BSSID is left zeroed, wildcard value */
+	mgmt->u.action.category = MESH_PATH_SEL_CATEGORY;
+	mgmt->u.action.u.mesh_action.action_code = action;
+
+	switch (action) {
+	case MPATH_PREQ:
+		ie_len = 37;
+		pos = skb_put(skb, 2 + ie_len);
+		*pos++ = WLAN_EID_PREQ;
+		break;
+	case MPATH_PREP:
+		ie_len = 31;
+		pos = skb_put(skb, 2 + ie_len);
+		*pos++ = WLAN_EID_PREP;
+		break;
+	default:
+		kfree(skb);
+		return -ENOTSUPP;
+		break;
+	}
+	*pos++ = ie_len;
+	*pos++ = flags;
+	*pos++ = hop_count;
+	*pos++ = ttl;
+	if (action == MPATH_PREQ) {
+		memcpy(pos, &preq_id, 4);
+		pos += 4;
+	}
+	memcpy(pos, orig_addr, ETH_ALEN);
+	pos += ETH_ALEN;
+	memcpy(pos, &orig_dsn, 4);
+	pos += 4;
+	memcpy(pos, &lifetime, 4);
+	pos += 4;
+	memcpy(pos, &metric, 4);
+	pos += 4;
+	if (action == MPATH_PREQ) {
+		/* destination count */
+		*pos++ = 1;
+		*pos++ = dst_flags;
+	}
+	memcpy(pos, dst, ETH_ALEN);
+	pos += ETH_ALEN;
+	memcpy(pos, &dst_dsn, 4);
+
+	ieee80211_sta_tx(dev, skb, 0);
+	return 0;
+}
+
+/**
+ * mesh_send_path error - Sends a PERR mesh management frame
+ *
+ * @dst: broken destination
+ * @dst_dsn: dsn of the broken destination
+ * @ra: node this frame is addressed to
+ */
+int mesh_path_error_tx(u8 *dst, __le32 dst_dsn, u8 *ra,
+		struct net_device *dev)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
+	struct ieee80211_mgmt *mgmt;
+	u8 *pos;
+	int ie_len;
+
+	if (!skb)
+		return -1;
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+	/* 25 is the size of the common mgmt part (24) plus the size of the
+	 * common action part (1)
+	 */
+	mgmt = (struct ieee80211_mgmt *)
+		skb_put(skb, 25 + sizeof(mgmt->u.action.u.mesh_action));
+	memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.mesh_action));
+	mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+					   IEEE80211_STYPE_ACTION);
+
+	memcpy(mgmt->da, ra, ETH_ALEN);
+	memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+	/* BSSID is left zeroed, wildcard value */
+	mgmt->u.action.category = MESH_PATH_SEL_CATEGORY;
+	mgmt->u.action.u.mesh_action.action_code = MPATH_PERR;
+	ie_len = 12;
+	pos = skb_put(skb, 2 + ie_len);
+	*pos++ = WLAN_EID_PERR;
+	*pos++ = ie_len;
+	/* mode flags, reserved */
+	*pos++ = 0;
+	/* number of destinations */
+	*pos++ = 1;
+	memcpy(pos, dst, ETH_ALEN);
+	pos += ETH_ALEN;
+	memcpy(pos, &dst_dsn, 4);
+
+	ieee80211_sta_tx(dev, skb, 0);
+	return 0;
+}
+
+static u32 airtime_link_metric_get(struct ieee80211_local *local,
+				   struct sta_info *sta)
+{
+	struct ieee80211_supported_band *sband;
+	/* This should be adjusted for each device */
+	int device_constant = 1 << ARITH_SHIFT;
+	int test_frame_len = TEST_FRAME_LEN << ARITH_SHIFT;
+	int s_unit = 1 << ARITH_SHIFT;
+	int rate, err;
+	u32 tx_time, estimated_retx;
+	u64 result;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+	if (sta->fail_avg >= 100)
+		return MAX_METRIC;
+	err = (sta->fail_avg << ARITH_SHIFT) / 100;
+
+	/* bitrate is in units of 100 Kbps, while we need rate in units of
+	 * 1Mbps. This will be corrected on tx_time computation.
+	 */
+	rate = sband->bitrates[sta->txrate_idx].bitrate;
+	tx_time = (device_constant + 10 * test_frame_len / rate);
+	estimated_retx = ((1 << (2 * ARITH_SHIFT)) / (s_unit - err));
+	result = (tx_time * estimated_retx) >> (2 * ARITH_SHIFT) ;
+	return (u32)result;
+}
+
+/**
+ * hwmp_route_info_get - Update routing info to originator and transmitter
+ *
+ * @dev: local mesh interface
+ * @mgmt: mesh management frame
+ * @hwmp_ie: hwmp information element (PREP or PREQ)
+ *
+ * This function updates the path routing information to the originator and the
+ * transmitter of a HWMP PREQ or PREP fram.
+ *
+ * Returns: metric to frame originator or 0 if the frame should not be further
+ * processed
+ *
+ * Notes: this function is the only place (besides user-provided info) where
+ * path routing information is updated.
+ */
+static u32 hwmp_route_info_get(struct net_device *dev,
+			    struct ieee80211_mgmt *mgmt,
+			    u8 *hwmp_ie)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct mesh_path *mpath;
+	struct sta_info *sta;
+	bool fresh_info;
+	u8 *orig_addr, *ta;
+	u32 orig_dsn, orig_metric;
+	unsigned long orig_lifetime, exp_time;
+	u32 last_hop_metric, new_metric;
+	bool process = true;
+	u8 action = mgmt->u.action.u.mesh_action.action_code;
+
+	rcu_read_lock();
+	sta = sta_info_get(local, mgmt->sa);
+	if (!sta) {
+		rcu_read_unlock();
+		return 0;
+	}
+
+	last_hop_metric = airtime_link_metric_get(local, sta);
+	/* Update and check originator routing info */
+	fresh_info = true;
+
+	switch (action) {
+	case MPATH_PREQ:
+		orig_addr = PREQ_IE_ORIG_ADDR(hwmp_ie);
+		orig_dsn = PREQ_IE_ORIG_DSN(hwmp_ie);
+		orig_lifetime = PREQ_IE_LIFETIME(hwmp_ie);
+		orig_metric = PREQ_IE_METRIC(hwmp_ie);
+		break;
+	case MPATH_PREP:
+		/* Originator here refers to the MP that was the destination in
+		 * the Path Request. The draft refers to that MP as the
+		 * destination address, even though usually it is the origin of
+		 * the PREP frame. We divert from the nomenclature in the draft
+		 * so that we can easily use a single function to gather path
+		 * information from both PREQ and PREP frames.
+		 */
+		orig_addr = PREP_IE_ORIG_ADDR(hwmp_ie);
+		orig_dsn = PREP_IE_ORIG_DSN(hwmp_ie);
+		orig_lifetime = PREP_IE_LIFETIME(hwmp_ie);
+		orig_metric = PREP_IE_METRIC(hwmp_ie);
+		break;
+	default:
+		rcu_read_unlock();
+		return 0;
+	}
+	new_metric = orig_metric + last_hop_metric;
+	if (new_metric < orig_metric)
+		new_metric = MAX_METRIC;
+	exp_time = TU_TO_EXP_TIME(orig_lifetime);
+
+	if (memcmp(orig_addr, dev->dev_addr, ETH_ALEN) == 0) {
+		/* This MP is the originator, we are not interested in this
+		 * frame, except for updating transmitter's path info.
+		 */
+		process = false;
+		fresh_info = false;
+	} else {
+		mpath = mesh_path_lookup(orig_addr, dev);
+		if (mpath) {
+			spin_lock_bh(&mpath->state_lock);
+			if (mpath->flags & MESH_PATH_FIXED)
+				fresh_info = false;
+			else if ((mpath->flags & MESH_PATH_ACTIVE) &&
+			    (mpath->flags & MESH_PATH_DSN_VALID)) {
+				if (DSN_GT(mpath->dsn, orig_dsn) ||
+				    (mpath->dsn == orig_dsn &&
+				     action == MPATH_PREQ &&
+				     new_metric > mpath->metric)) {
+					process = false;
+					fresh_info = false;
+				}
+			}
+		} else {
+			mesh_path_add(orig_addr, dev);
+			mpath = mesh_path_lookup(orig_addr, dev);
+			if (!mpath) {
+				rcu_read_unlock();
+				return 0;
+			}
+			spin_lock_bh(&mpath->state_lock);
+		}
+
+		if (fresh_info) {
+			mesh_path_assign_nexthop(mpath, sta);
+			mpath->flags |= MESH_PATH_DSN_VALID;
+			mpath->metric = new_metric;
+			mpath->dsn = orig_dsn;
+			mpath->exp_time = time_after(mpath->exp_time, exp_time)
+					  ?  mpath->exp_time : exp_time;
+			mesh_path_activate(mpath);
+			spin_unlock_bh(&mpath->state_lock);
+			mesh_path_tx_pending(mpath);
+			/* draft says preq_id should be saved to, but there does
+			 * not seem to be any use for it, skipping by now
+			 */
+		} else
+			spin_unlock_bh(&mpath->state_lock);
+	}
+
+	/* Update and check transmitter routing info */
+	ta = mgmt->sa;
+	if (memcmp(orig_addr, ta, ETH_ALEN) == 0)
+		fresh_info = false;
+	else {
+		fresh_info = true;
+
+		mpath = mesh_path_lookup(ta, dev);
+		if (mpath) {
+			spin_lock_bh(&mpath->state_lock);
+			if ((mpath->flags & MESH_PATH_FIXED) ||
+				((mpath->flags & MESH_PATH_ACTIVE) &&
+					(last_hop_metric > mpath->metric)))
+				fresh_info = false;
+		} else {
+			mesh_path_add(ta, dev);
+			mpath = mesh_path_lookup(ta, dev);
+			if (!mpath) {
+				rcu_read_unlock();
+				return 0;
+			}
+			spin_lock_bh(&mpath->state_lock);
+		}
+
+		if (fresh_info) {
+			mesh_path_assign_nexthop(mpath, sta);
+			mpath->flags &= ~MESH_PATH_DSN_VALID;
+			mpath->metric = last_hop_metric;
+			mpath->exp_time = time_after(mpath->exp_time, exp_time)
+					  ?  mpath->exp_time : exp_time;
+			mesh_path_activate(mpath);
+			spin_unlock_bh(&mpath->state_lock);
+			mesh_path_tx_pending(mpath);
+		} else
+			spin_unlock_bh(&mpath->state_lock);
+	}
+
+	rcu_read_unlock();
+
+	return process ? new_metric : 0;
+}
+
+static void hwmp_preq_frame_process(struct net_device *dev,
+				    struct ieee80211_mgmt *mgmt,
+				    u8 *preq_elem, u32 metric) {
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct mesh_path *mpath;
+	u8 *dst_addr, *orig_addr;
+	u8 dst_flags, ttl;
+	u32 orig_dsn, dst_dsn, lifetime;
+	bool reply = false;
+	bool forward = true;
+
+	/* Update destination DSN, if present */
+	dst_addr = PREQ_IE_DST_ADDR(preq_elem);
+	orig_addr = PREQ_IE_ORIG_ADDR(preq_elem);
+	dst_dsn = PREQ_IE_DST_DSN(preq_elem);
+	orig_dsn = PREQ_IE_ORIG_DSN(preq_elem);
+	dst_flags = PREQ_IE_DST_F(preq_elem);
+
+	if (memcmp(dst_addr, dev->dev_addr, ETH_ALEN) == 0) {
+		forward = false;
+		reply = true;
+		metric = 0;
+		if (time_after(jiffies, ifsta->last_dsn_update +
+					net_traversal_jiffies(sdata)) ||
+		    time_before(jiffies, ifsta->last_dsn_update)) {
+			dst_dsn = ++ifsta->dsn;
+			ifsta->last_dsn_update = jiffies;
+		}
+	} else {
+		rcu_read_lock();
+		mpath = mesh_path_lookup(dst_addr, dev);
+		if (mpath) {
+			if ((!(mpath->flags & MESH_PATH_DSN_VALID)) ||
+					DSN_LT(mpath->dsn, dst_dsn)) {
+				mpath->dsn = dst_dsn;
+				mpath->flags &= MESH_PATH_DSN_VALID;
+			} else if ((!(dst_flags & MP_F_DO)) &&
+					(mpath->flags & MESH_PATH_ACTIVE)) {
+				reply = true;
+				metric = mpath->metric;
+				dst_dsn = mpath->dsn;
+				if (dst_flags & MP_F_RF)
+					dst_flags |= MP_F_DO;
+				else
+					forward = false;
+			}
+		}
+		rcu_read_unlock();
+	}
+
+	if (reply) {
+		lifetime = PREQ_IE_LIFETIME(preq_elem);
+		ttl = ifsta->mshcfg.dot11MeshTTL;
+		if (ttl != 0)
+			mesh_path_sel_frame_tx(MPATH_PREP, 0, dst_addr,
+				cpu_to_le32(dst_dsn), 0, orig_addr,
+				cpu_to_le32(orig_dsn), mgmt->sa, 0, ttl,
+				cpu_to_le32(lifetime), cpu_to_le32(metric),
+				0, dev);
+		else
+			ifsta->mshstats.dropped_frames_ttl++;
+	}
+
+	if (forward) {
+		u32 preq_id;
+		u8 hopcount, flags;
+
+		ttl = PREQ_IE_TTL(preq_elem);
+		lifetime = PREQ_IE_LIFETIME(preq_elem);
+		if (ttl <= 1) {
+			ifsta->mshstats.dropped_frames_ttl++;
+			return;
+		}
+		--ttl;
+		flags = PREQ_IE_FLAGS(preq_elem);
+		preq_id = PREQ_IE_PREQ_ID(preq_elem);
+		hopcount = PREQ_IE_HOPCOUNT(preq_elem) + 1;
+		mesh_path_sel_frame_tx(MPATH_PREQ, flags, orig_addr,
+				cpu_to_le32(orig_dsn), dst_flags, dst_addr,
+				cpu_to_le32(dst_dsn), dev->broadcast,
+				hopcount, ttl, cpu_to_le32(lifetime),
+				cpu_to_le32(metric), cpu_to_le32(preq_id),
+				dev);
+		ifsta->mshstats.fwded_frames++;
+	}
+}
+
+
+static void hwmp_prep_frame_process(struct net_device *dev,
+				    struct ieee80211_mgmt *mgmt,
+				    u8 *prep_elem, u32 metric)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct mesh_path *mpath;
+	u8 *dst_addr, *orig_addr;
+	u8 ttl, hopcount, flags;
+	u8 next_hop[ETH_ALEN];
+	u32 dst_dsn, orig_dsn, lifetime;
+
+	/* Note that we divert from the draft nomenclature and denominate
+	 * destination to what the draft refers to as origininator. So in this
+	 * function destnation refers to the final destination of the PREP,
+	 * which corresponds with the originator of the PREQ which this PREP
+	 * replies
+	 */
+	dst_addr = PREP_IE_DST_ADDR(prep_elem);
+	if (memcmp(dst_addr, dev->dev_addr, ETH_ALEN) == 0)
+		/* destination, no forwarding required */
+		return;
+
+	ttl = PREP_IE_TTL(prep_elem);
+	if (ttl <= 1) {
+		sdata->u.sta.mshstats.dropped_frames_ttl++;
+		return;
+	}
+
+	rcu_read_lock();
+	mpath = mesh_path_lookup(dst_addr, dev);
+	if (mpath)
+		spin_lock_bh(&mpath->state_lock);
+	else
+		goto fail;
+	if (!(mpath->flags & MESH_PATH_ACTIVE)) {
+		spin_unlock_bh(&mpath->state_lock);
+		goto fail;
+	}
+	memcpy(next_hop, mpath->next_hop->addr, ETH_ALEN);
+	spin_unlock_bh(&mpath->state_lock);
+	--ttl;
+	flags = PREP_IE_FLAGS(prep_elem);
+	lifetime = PREP_IE_LIFETIME(prep_elem);
+	hopcount = PREP_IE_HOPCOUNT(prep_elem) + 1;
+	orig_addr = PREP_IE_ORIG_ADDR(prep_elem);
+	dst_dsn = PREP_IE_DST_DSN(prep_elem);
+	orig_dsn = PREP_IE_ORIG_DSN(prep_elem);
+
+	mesh_path_sel_frame_tx(MPATH_PREP, flags, orig_addr,
+		cpu_to_le32(orig_dsn), 0, dst_addr,
+		cpu_to_le32(dst_dsn), mpath->next_hop->addr, hopcount, ttl,
+		cpu_to_le32(lifetime), cpu_to_le32(metric),
+		0, dev);
+	rcu_read_unlock();
+	sdata->u.sta.mshstats.fwded_frames++;
+	return;
+
+fail:
+	rcu_read_unlock();
+	sdata->u.sta.mshstats.dropped_frames_no_route++;
+	return;
+}
+
+static void hwmp_perr_frame_process(struct net_device *dev,
+			     struct ieee80211_mgmt *mgmt, u8 *perr_elem)
+{
+	struct mesh_path *mpath;
+	u8 *ta, *dst_addr;
+	u32 dst_dsn;
+
+	ta = mgmt->sa;
+	dst_addr = PERR_IE_DST_ADDR(perr_elem);
+	dst_dsn = PERR_IE_DST_DSN(perr_elem);
+	rcu_read_lock();
+	mpath = mesh_path_lookup(dst_addr, dev);
+	if (mpath) {
+		spin_lock_bh(&mpath->state_lock);
+		if (mpath->flags & MESH_PATH_ACTIVE &&
+		    memcmp(ta, mpath->next_hop->addr, ETH_ALEN) == 0 &&
+		    (!(mpath->flags & MESH_PATH_DSN_VALID) ||
+		    DSN_GT(dst_dsn, mpath->dsn))) {
+			mpath->flags &= ~MESH_PATH_ACTIVE;
+			mpath->dsn = dst_dsn;
+			spin_unlock_bh(&mpath->state_lock);
+			mesh_path_error_tx(dst_addr, cpu_to_le32(dst_dsn),
+					   dev->broadcast, dev);
+		} else
+			spin_unlock_bh(&mpath->state_lock);
+	}
+	rcu_read_unlock();
+}
+
+
+
+void mesh_rx_path_sel_frame(struct net_device *dev,
+			    struct ieee80211_mgmt *mgmt,
+			    size_t len)
+{
+	struct ieee802_11_elems elems;
+	size_t baselen;
+	u32 last_hop_metric;
+
+	baselen = (u8 *) mgmt->u.action.u.mesh_action.variable - (u8 *) mgmt;
+	ieee802_11_parse_elems(mgmt->u.action.u.mesh_action.variable,
+			len - baselen, &elems);
+
+	switch (mgmt->u.action.u.mesh_action.action_code) {
+	case MPATH_PREQ:
+		if (!elems.preq || elems.preq_len != 37)
+			/* Right now we support just 1 destination and no AE */
+			return;
+		last_hop_metric = hwmp_route_info_get(dev, mgmt, elems.preq);
+		if (!last_hop_metric)
+			return;
+		hwmp_preq_frame_process(dev, mgmt, elems.preq, last_hop_metric);
+		break;
+	case MPATH_PREP:
+		if (!elems.prep || elems.prep_len != 31)
+			/* Right now we support no AE */
+			return;
+		last_hop_metric = hwmp_route_info_get(dev, mgmt, elems.prep);
+		if (!last_hop_metric)
+			return;
+		hwmp_prep_frame_process(dev, mgmt, elems.prep, last_hop_metric);
+		break;
+	case MPATH_PERR:
+		if (!elems.perr || elems.perr_len != 12)
+			/* Right now we support only one destination per PERR */
+			return;
+		hwmp_perr_frame_process(dev, mgmt, elems.perr);
+	default:
+		return;
+	}
+
+}
+
+/**
+ * mesh_queue_preq - queue a PREQ to a given destination
+ *
+ * @mpath: mesh path to discover
+ * @flags: special attributes of the PREQ to be sent
+ *
+ * Locking: the function must be called from within a rcu read lock block.
+ *
+ */
+static void mesh_queue_preq(struct mesh_path *mpath, u8 flags)
+{
+	struct ieee80211_sub_if_data *sdata =
+		IEEE80211_DEV_TO_SUB_IF(mpath->dev);
+	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct mesh_preq_queue *preq_node;
+
+	preq_node = kmalloc(sizeof(struct mesh_preq_queue), GFP_KERNEL);
+	if (!preq_node) {
+		printk(KERN_DEBUG "Mesh HWMP: could not allocate PREQ node\n");
+		return;
+	}
+
+	spin_lock(&ifsta->mesh_preq_queue_lock);
+	if (ifsta->preq_queue_len == MAX_PREQ_QUEUE_LEN) {
+		spin_unlock(&ifsta->mesh_preq_queue_lock);
+		kfree(preq_node);
+		if (printk_ratelimit())
+			printk(KERN_DEBUG "Mesh HWMP: PREQ node queue full\n");
+		return;
+	}
+
+	memcpy(preq_node->dst, mpath->dst, ETH_ALEN);
+	preq_node->flags = flags;
+
+	list_add_tail(&preq_node->list, &ifsta->preq_queue.list);
+	++ifsta->preq_queue_len;
+	spin_unlock(&ifsta->mesh_preq_queue_lock);
+
+	if (time_after(jiffies, ifsta->last_preq + min_preq_int_jiff(sdata)))
+		queue_work(sdata->local->hw.workqueue, &ifsta->work);
+
+	else if (time_before(jiffies, ifsta->last_preq)) {
+		/* avoid long wait if did not send preqs for a long time
+		 * and jiffies wrapped around
+		 */
+		ifsta->last_preq = jiffies - min_preq_int_jiff(sdata) - 1;
+		queue_work(sdata->local->hw.workqueue, &ifsta->work);
+	} else
+		mod_timer(&ifsta->mesh_path_timer, ifsta->last_preq +
+						min_preq_int_jiff(sdata));
+}
+
+/**
+ * mesh_path_start_discovery - launch a path discovery from the PREQ queue
+ *
+ * @dev: local mesh interface
+ */
+void mesh_path_start_discovery(struct net_device *dev)
+{
+	struct ieee80211_sub_if_data *sdata =
+		IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct mesh_preq_queue *preq_node;
+	struct mesh_path *mpath;
+	u8 ttl, dst_flags;
+	u32 lifetime;
+
+	spin_lock(&ifsta->mesh_preq_queue_lock);
+	if (!ifsta->preq_queue_len ||
+		time_before(jiffies, ifsta->last_preq +
+				min_preq_int_jiff(sdata))) {
+		spin_unlock(&ifsta->mesh_preq_queue_lock);
+		return;
+	}
+
+	preq_node = list_first_entry(&ifsta->preq_queue.list,
+			struct mesh_preq_queue, list);
+	list_del(&preq_node->list);
+	--ifsta->preq_queue_len;
+	spin_unlock(&ifsta->mesh_preq_queue_lock);
+
+	rcu_read_lock();
+	mpath = mesh_path_lookup(preq_node->dst, dev);
+	if (!mpath)
+		goto enddiscovery;
+
+	spin_lock_bh(&mpath->state_lock);
+	if (preq_node->flags & PREQ_Q_F_START) {
+		if (mpath->flags & MESH_PATH_RESOLVING) {
+			spin_unlock_bh(&mpath->state_lock);
+			goto enddiscovery;
+		} else {
+			mpath->flags &= ~MESH_PATH_RESOLVED;
+			mpath->flags |= MESH_PATH_RESOLVING;
+			mpath->discovery_retries = 0;
+			mpath->discovery_timeout = disc_timeout_jiff(sdata);
+		}
+	} else if (!(mpath->flags & MESH_PATH_RESOLVING) ||
+			mpath->flags & MESH_PATH_RESOLVED) {
+		mpath->flags &= ~MESH_PATH_RESOLVING;
+		spin_unlock_bh(&mpath->state_lock);
+		goto enddiscovery;
+	}
+
+	ifsta->last_preq = jiffies;
+
+	if (time_after(jiffies, ifsta->last_dsn_update +
+				net_traversal_jiffies(sdata)) ||
+	    time_before(jiffies, ifsta->last_dsn_update)) {
+		++ifsta->dsn;
+		sdata->u.sta.last_dsn_update = jiffies;
+	}
+	lifetime = default_lifetime(sdata);
+	ttl = sdata->u.sta.mshcfg.dot11MeshTTL;
+	if (ttl == 0) {
+		sdata->u.sta.mshstats.dropped_frames_ttl++;
+		spin_unlock_bh(&mpath->state_lock);
+		goto enddiscovery;
+	}
+
+	if (preq_node->flags & PREQ_Q_F_REFRESH)
+		dst_flags = MP_F_DO;
+	else
+		dst_flags = MP_F_RF;
+
+	spin_unlock_bh(&mpath->state_lock);
+	mesh_path_sel_frame_tx(MPATH_PREQ, 0, dev->dev_addr,
+			cpu_to_le32(ifsta->dsn), dst_flags, mpath->dst,
+			cpu_to_le32(mpath->dsn), dev->broadcast, 0,
+			ttl, cpu_to_le32(lifetime), 0,
+			cpu_to_le32(ifsta->preq_id++), dev);
+	mod_timer(&mpath->timer, jiffies + mpath->discovery_timeout);
+
+enddiscovery:
+	rcu_read_unlock();
+	kfree(preq_node);
+}
+
+/**
+ * ieee80211s_lookup_nexthop - put the appropriate next hop on a mesh frame
+ *
+ * @next_hop: output argument for next hop address
+ * @skb: frame to be sent
+ * @dev: network device the frame will be sent through
+ *
+ * Returns: 0 if the next hop was found. Nonzero otherwise. If no next hop is
+ * found, the function will start a path discovery and queue the frame so it is
+ * sent when the path is resolved. This means the caller must not free the skb
+ * in this case.
+ */
+int mesh_nexthop_lookup(u8 *next_hop, struct sk_buff *skb,
+		struct net_device *dev)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct sk_buff *skb_to_free = NULL;
+	struct mesh_path *mpath;
+	int err = 0;
+
+	rcu_read_lock();
+	mpath = mesh_path_lookup(skb->data, dev);
+
+	if (!mpath) {
+		mesh_path_add(skb->data, dev);
+		mpath = mesh_path_lookup(skb->data, dev);
+		if (!mpath) {
+			dev_kfree_skb(skb);
+			sdata->u.sta.mshstats.dropped_frames_no_route++;
+			err = -ENOSPC;
+			goto endlookup;
+		}
+	}
+
+	if (mpath->flags & MESH_PATH_ACTIVE) {
+		if (time_after(jiffies, mpath->exp_time -
+			msecs_to_jiffies(sdata->u.sta.mshcfg.path_refresh_time))
+				&& skb->pkt_type != PACKET_OTHERHOST
+				&& !(mpath->flags & MESH_PATH_RESOLVING)
+				&& !(mpath->flags & MESH_PATH_FIXED)) {
+			mesh_queue_preq(mpath,
+					PREQ_Q_F_START | PREQ_Q_F_REFRESH);
+		}
+		memcpy(next_hop, mpath->next_hop->addr,
+				ETH_ALEN);
+	} else {
+		if (!(mpath->flags & MESH_PATH_RESOLVING)) {
+			/* Start discovery only if it is not running yet */
+			mesh_queue_preq(mpath, PREQ_Q_F_START);
+		}
+
+		if (skb_queue_len(&mpath->frame_queue) >=
+				MESH_FRAME_QUEUE_LEN) {
+			skb_to_free = mpath->frame_queue.next;
+			skb_unlink(skb_to_free, &mpath->frame_queue);
+		}
+
+		skb_queue_tail(&mpath->frame_queue, skb);
+		if (skb_to_free)
+			mesh_path_discard_frame(skb_to_free, dev);
+		err = -ENOENT;
+	}
+
+endlookup:
+	rcu_read_unlock();
+	return err;
+}
+
+void mesh_path_timer(unsigned long data)
+{
+	struct ieee80211_sub_if_data *sdata;
+	struct mesh_path *mpath;
+
+	rcu_read_lock();
+	mpath = (struct mesh_path *) data;
+	mpath = rcu_dereference(mpath);
+	if (!mpath)
+		goto endmpathtimer;
+	spin_lock_bh(&mpath->state_lock);
+	sdata = IEEE80211_DEV_TO_SUB_IF(mpath->dev);
+	if (mpath->flags & MESH_PATH_RESOLVED ||
+			(!(mpath->flags & MESH_PATH_RESOLVING)))
+		mpath->flags &= ~(MESH_PATH_RESOLVING | MESH_PATH_RESOLVED);
+	else if (mpath->discovery_retries < max_preq_retries(sdata)) {
+		++mpath->discovery_retries;
+		mpath->discovery_timeout *= 2;
+		mesh_queue_preq(mpath, 0);
+	} else {
+		mpath->flags = 0;
+		mpath->exp_time = jiffies;
+		mesh_path_flush_pending(mpath);
+	}
+
+	spin_unlock_bh(&mpath->state_lock);
+endmpathtimer:
+	rcu_read_unlock();
+}
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
new file mode 100644
index 000000000000..5845dc21ce85
--- /dev/null
+++ b/net/mac80211/mesh_pathtbl.c
@@ -0,0 +1,516 @@
+/*
+ * Copyright (c) 2008 open80211s Ltd.
+ * Author:     Luis Carlos Cobo <luisca@cozybit.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/random.h>
+#include <linux/spinlock.h>
+#include <linux/string.h>
+#include <net/mac80211.h>
+#include "ieee80211_i.h"
+#include "mesh.h"
+
+/* There will be initially 2^INIT_PATHS_SIZE_ORDER buckets */
+#define INIT_PATHS_SIZE_ORDER	2
+
+/* Keep the mean chain length below this constant */
+#define MEAN_CHAIN_LEN		2
+
+#define MPATH_EXPIRED(mpath) ((mpath->flags & MESH_PATH_ACTIVE) && \
+				time_after(jiffies, mpath->exp_time) && \
+				!(mpath->flags & MESH_PATH_FIXED))
+
+struct mpath_node {
+	struct hlist_node list;
+	struct rcu_head rcu;
+	/* This indirection allows two different tables to point to the same
+	 * mesh_path structure, useful when resizing
+	 */
+	struct mesh_path *mpath;
+};
+
+static struct mesh_table *mesh_paths;
+
+/* This lock will have the grow table function as writer and add / delete nodes
+ * as readers. When reading the table (i.e. doing lookups) we are well protected
+ * by RCU
+ */
+static DEFINE_RWLOCK(pathtbl_resize_lock);
+
+/**
+ *
+ * mesh_path_assign_nexthop - update mesh path next hop
+ *
+ * @mpath: mesh path to update
+ * @sta: next hop to assign
+ *
+ * Locking: mpath->state_lock must be held when calling this function
+ */
+void mesh_path_assign_nexthop(struct mesh_path *mpath, struct sta_info *sta)
+{
+	rcu_assign_pointer(mpath->next_hop, sta);
+}
+
+
+/**
+ * mesh_path_lookup - look up a path in the mesh path table
+ * @dst: hardware address (ETH_ALEN length) of destination
+ * @dev: local interface
+ *
+ * Returns: pointer to the mesh path structure, or NULL if not found
+ *
+ * Locking: must be called within a read rcu section.
+ */
+struct mesh_path *mesh_path_lookup(u8 *dst, struct net_device *dev)
+{
+	struct mesh_path *mpath;
+	struct hlist_node *n;
+	struct hlist_head *bucket;
+	struct mesh_table *tbl;
+	struct mpath_node *node;
+
+	tbl = rcu_dereference(mesh_paths);
+
+	bucket = &tbl->hash_buckets[mesh_table_hash(dst, dev, tbl)];
+	hlist_for_each_entry_rcu(node, n, bucket, list) {
+		mpath = node->mpath;
+		if (mpath->dev == dev &&
+				memcmp(dst, mpath->dst, ETH_ALEN) == 0) {
+			if (MPATH_EXPIRED(mpath)) {
+				spin_lock_bh(&mpath->state_lock);
+				if (MPATH_EXPIRED(mpath))
+					mpath->flags &= ~MESH_PATH_ACTIVE;
+				spin_unlock_bh(&mpath->state_lock);
+			}
+			return mpath;
+		}
+	}
+	return NULL;
+}
+
+/**
+ * mesh_path_lookup_by_idx - look up a path in the mesh path table by its index
+ * @idx: index
+ * @dev: local interface, or NULL for all entries
+ *
+ * Returns: pointer to the mesh path structure, or NULL if not found.
+ *
+ * Locking: must be called within a read rcu section.
+ */
+struct mesh_path *mesh_path_lookup_by_idx(int idx, struct net_device *dev)
+{
+	struct mpath_node *node;
+	struct hlist_node *p;
+	int i;
+	int j = 0;
+
+	for_each_mesh_entry(mesh_paths, p, node, i) {
+		if (dev && node->mpath->dev != dev)
+			continue;
+		if (j++ == idx) {
+			if (MPATH_EXPIRED(node->mpath)) {
+				spin_lock_bh(&node->mpath->state_lock);
+				if (MPATH_EXPIRED(node->mpath))
+					node->mpath->flags &= ~MESH_PATH_ACTIVE;
+				spin_unlock_bh(&node->mpath->state_lock);
+			}
+			return node->mpath;
+		}
+	}
+
+	return NULL;
+}
+
+/**
+ * mesh_path_add - allocate and add a new path to the mesh path table
+ * @addr: destination address of the path (ETH_ALEN length)
+ * @dev: local interface
+ *
+ * Returns: 0 on sucess
+ *
+ * State: the initial state of the new path is set to 0
+ */
+int mesh_path_add(u8 *dst, struct net_device *dev)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct mesh_path *mpath, *new_mpath;
+	struct mpath_node *node, *new_node;
+	struct hlist_head *bucket;
+	struct hlist_node *n;
+	int grow = 0;
+	int err = 0;
+	u32 hash_idx;
+
+	if (memcmp(dst, dev->dev_addr, ETH_ALEN) == 0)
+		/* never add ourselves as neighbours */
+		return -ENOTSUPP;
+
+	if (is_multicast_ether_addr(dst))
+		return -ENOTSUPP;
+
+	if (atomic_add_unless(&sdata->u.sta.mpaths, 1, MESH_MAX_MPATHS) == 0)
+		return -ENOSPC;
+
+	read_lock(&pathtbl_resize_lock);
+
+	new_mpath = kzalloc(sizeof(struct mesh_path), GFP_KERNEL);
+	if (!new_mpath) {
+		atomic_dec(&sdata->u.sta.mpaths);
+		err = -ENOMEM;
+		goto endadd2;
+	}
+	memcpy(new_mpath->dst, dst, ETH_ALEN);
+	new_mpath->dev = dev;
+	new_mpath->flags = 0;
+	skb_queue_head_init(&new_mpath->frame_queue);
+	new_node = kmalloc(sizeof(struct mpath_node), GFP_KERNEL);
+	new_node->mpath = new_mpath;
+	new_mpath->timer.data = (unsigned long) new_mpath;
+	new_mpath->timer.function = mesh_path_timer;
+	new_mpath->exp_time = jiffies;
+	spin_lock_init(&new_mpath->state_lock);
+	init_timer(&new_mpath->timer);
+
+	hash_idx = mesh_table_hash(dst, dev, mesh_paths);
+	bucket = &mesh_paths->hash_buckets[hash_idx];
+
+	spin_lock(&mesh_paths->hashwlock[hash_idx]);
+
+	hlist_for_each_entry(node, n, bucket, list) {
+		mpath = node->mpath;
+		if (mpath->dev == dev && memcmp(dst, mpath->dst, ETH_ALEN)
+				== 0) {
+			err = -EEXIST;
+			atomic_dec(&sdata->u.sta.mpaths);
+			kfree(new_node);
+			kfree(new_mpath);
+			goto endadd;
+		}
+	}
+
+	hlist_add_head_rcu(&new_node->list, bucket);
+	if (atomic_inc_return(&mesh_paths->entries) >=
+		mesh_paths->mean_chain_len * (mesh_paths->hash_mask + 1))
+		grow = 1;
+
+endadd:
+	spin_unlock(&mesh_paths->hashwlock[hash_idx]);
+endadd2:
+	read_unlock(&pathtbl_resize_lock);
+	if (!err && grow) {
+		struct mesh_table *oldtbl, *newtbl;
+
+		write_lock(&pathtbl_resize_lock);
+		oldtbl = mesh_paths;
+		newtbl = mesh_table_grow(mesh_paths);
+		if (!newtbl) {
+			write_unlock(&pathtbl_resize_lock);
+			return -ENOMEM;
+		}
+		rcu_assign_pointer(mesh_paths, newtbl);
+		synchronize_rcu();
+		mesh_table_free(oldtbl, false);
+		write_unlock(&pathtbl_resize_lock);
+	}
+	return err;
+}
+
+
+/**
+ * mesh_plink_broken - deactivates paths and sends perr when a link breaks
+ *
+ * @sta: broken peer link
+ *
+ * This function must be called from the rate control algorithm if enough
+ * delivery errors suggest that a peer link is no longer usable.
+ */
+void mesh_plink_broken(struct sta_info *sta)
+{
+	struct mesh_path *mpath;
+	struct mpath_node *node;
+	struct hlist_node *p;
+	struct net_device *dev = sta->sdata->dev;
+	int i;
+
+	rcu_read_lock();
+	for_each_mesh_entry(mesh_paths, p, node, i) {
+		mpath = node->mpath;
+		spin_lock_bh(&mpath->state_lock);
+		if (mpath->next_hop == sta &&
+		    mpath->flags & MESH_PATH_ACTIVE &&
+		    !(mpath->flags & MESH_PATH_FIXED)) {
+			mpath->flags &= ~MESH_PATH_ACTIVE;
+			++mpath->dsn;
+			spin_unlock_bh(&mpath->state_lock);
+			mesh_path_error_tx(mpath->dst,
+					cpu_to_le32(mpath->dsn),
+					dev->broadcast, dev);
+		} else
+		spin_unlock_bh(&mpath->state_lock);
+	}
+	rcu_read_unlock();
+}
+EXPORT_SYMBOL(mesh_plink_broken);
+
+/**
+ * mesh_path_flush_by_nexthop - Deletes mesh paths if their next hop matches
+ *
+ * @sta - mesh peer to match
+ *
+ * RCU notes: this function is called when a mesh plink transitions from
+ * PLINK_ESTAB to any other state, since PLINK_ESTAB state is the only one that
+ * allows path creation. This will happen before the sta can be freed (because
+ * sta_info_destroy() calls this) so any reader in a rcu read block will be
+ * protected against the plink disappearing.
+ */
+void mesh_path_flush_by_nexthop(struct sta_info *sta)
+{
+	struct mesh_path *mpath;
+	struct mpath_node *node;
+	struct hlist_node *p;
+	int i;
+
+	for_each_mesh_entry(mesh_paths, p, node, i) {
+		mpath = node->mpath;
+		if (mpath->next_hop == sta)
+			mesh_path_del(mpath->dst, mpath->dev);
+	}
+}
+
+void mesh_path_flush(struct net_device *dev)
+{
+	struct mesh_path *mpath;
+	struct mpath_node *node;
+	struct hlist_node *p;
+	int i;
+
+	for_each_mesh_entry(mesh_paths, p, node, i) {
+		mpath = node->mpath;
+		if (mpath->dev == dev)
+			mesh_path_del(mpath->dst, mpath->dev);
+	}
+}
+
+static void mesh_path_node_reclaim(struct rcu_head *rp)
+{
+	struct mpath_node *node = container_of(rp, struct mpath_node, rcu);
+	struct ieee80211_sub_if_data *sdata =
+		IEEE80211_DEV_TO_SUB_IF(node->mpath->dev);
+
+	del_timer_sync(&node->mpath->timer);
+	atomic_dec(&sdata->u.sta.mpaths);
+	kfree(node->mpath);
+	kfree(node);
+}
+
+/**
+ * mesh_path_del - delete a mesh path from the table
+ *
+ * @addr: dst address (ETH_ALEN length)
+ * @dev: local interface
+ *
+ * Returns: 0 if succesful
+ */
+int mesh_path_del(u8 *addr, struct net_device *dev)
+{
+	struct mesh_path *mpath;
+	struct mpath_node *node;
+	struct hlist_head *bucket;
+	struct hlist_node *n;
+	int hash_idx;
+	int err = 0;
+
+	read_lock(&pathtbl_resize_lock);
+	hash_idx = mesh_table_hash(addr, dev, mesh_paths);
+	bucket = &mesh_paths->hash_buckets[hash_idx];
+
+	spin_lock(&mesh_paths->hashwlock[hash_idx]);
+	hlist_for_each_entry(node, n, bucket, list) {
+		mpath = node->mpath;
+		if (mpath->dev == dev &&
+				memcmp(addr, mpath->dst, ETH_ALEN) == 0) {
+			spin_lock_bh(&mpath->state_lock);
+			mpath->flags |= MESH_PATH_RESOLVING;
+			hlist_del_rcu(&node->list);
+			call_rcu(&node->rcu, mesh_path_node_reclaim);
+			atomic_dec(&mesh_paths->entries);
+			spin_unlock_bh(&mpath->state_lock);
+			goto enddel;
+		}
+	}
+
+	err = -ENXIO;
+enddel:
+	spin_unlock(&mesh_paths->hashwlock[hash_idx]);
+	read_unlock(&pathtbl_resize_lock);
+	return err;
+}
+
+/**
+ * mesh_path_tx_pending - sends pending frames in a mesh path queue
+ *
+ * @mpath: mesh path to activate
+ *
+ * Locking: the state_lock of the mpath structure must NOT be held when calling
+ * this function.
+ */
+void mesh_path_tx_pending(struct mesh_path *mpath)
+{
+	struct sk_buff *skb;
+
+	while ((skb = skb_dequeue(&mpath->frame_queue)) &&
+			(mpath->flags & MESH_PATH_ACTIVE))
+		dev_queue_xmit(skb);
+}
+
+/**
+ * mesh_path_discard_frame - discard a frame whose path could not be resolved
+ *
+ * @skb: frame to discard
+ * @dev: network device the frame was to be sent through
+ *
+ * If the frame was beign forwarded from another MP, a PERR frame will be sent
+ * to the precursor.
+ *
+ * Locking: the function must me called within a rcu_read_lock region
+ */
+void mesh_path_discard_frame(struct sk_buff *skb, struct net_device *dev)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct mesh_path *mpath;
+	u32 dsn = 0;
+
+	if (skb->pkt_type == PACKET_OTHERHOST) {
+		struct ieee80211s_hdr *prev_meshhdr;
+		int mshhdrlen;
+		u8 *ra, *da;
+
+		prev_meshhdr = ((struct ieee80211s_hdr *)skb->cb);
+		mshhdrlen = ieee80211_get_mesh_hdrlen(prev_meshhdr);
+		da = skb->data;
+		ra = MESH_PREQ(skb);
+		mpath = mesh_path_lookup(da, dev);
+		if (mpath)
+			dsn = ++mpath->dsn;
+		mesh_path_error_tx(skb->data, cpu_to_le32(dsn), ra, dev);
+	}
+
+	kfree_skb(skb);
+	sdata->u.sta.mshstats.dropped_frames_no_route++;
+}
+
+/**
+ * mesh_path_flush_pending - free the pending queue of a mesh path
+ *
+ * @mpath: mesh path whose queue has to be freed
+ *
+ * Locking: the function must me called withing a rcu_read_lock region
+ */
+void mesh_path_flush_pending(struct mesh_path *mpath)
+{
+	struct ieee80211_sub_if_data *sdata;
+	struct sk_buff *skb;
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(mpath->dev);
+
+	while ((skb = skb_dequeue(&mpath->frame_queue)) &&
+			(mpath->flags & MESH_PATH_ACTIVE))
+		mesh_path_discard_frame(skb, mpath->dev);
+}
+
+/**
+ * mesh_path_fix_nexthop - force a specific next hop for a mesh path
+ *
+ * @mpath: the mesh path to modify
+ * @next_hop: the next hop to force
+ *
+ * Locking: this function must be called holding mpath->state_lock
+ */
+void mesh_path_fix_nexthop(struct mesh_path *mpath, struct sta_info *next_hop)
+{
+	spin_lock_bh(&mpath->state_lock);
+	mesh_path_assign_nexthop(mpath, next_hop);
+	mpath->dsn = 0xffff;
+	mpath->metric = 0;
+	mpath->hop_count = 0;
+	mpath->exp_time = 0;
+	mpath->flags |= MESH_PATH_FIXED;
+	mesh_path_activate(mpath);
+	spin_unlock_bh(&mpath->state_lock);
+	mesh_path_tx_pending(mpath);
+}
+
+static void mesh_path_node_free(struct hlist_node *p, bool free_leafs)
+{
+	struct mesh_path *mpath;
+	struct mpath_node *node = hlist_entry(p, struct mpath_node, list);
+	mpath = node->mpath;
+	hlist_del_rcu(p);
+	synchronize_rcu();
+	if (free_leafs)
+		kfree(mpath);
+	kfree(node);
+}
+
+static void mesh_path_node_copy(struct hlist_node *p, struct mesh_table *newtbl)
+{
+	struct mesh_path *mpath;
+	struct mpath_node *node, *new_node;
+	u32 hash_idx;
+
+	node = hlist_entry(p, struct mpath_node, list);
+	mpath = node->mpath;
+	new_node = kmalloc(sizeof(struct mpath_node), GFP_KERNEL);
+	new_node->mpath = mpath;
+	hash_idx = mesh_table_hash(mpath->dst, mpath->dev, newtbl);
+	hlist_add_head(&new_node->list,
+			&newtbl->hash_buckets[hash_idx]);
+}
+
+int mesh_pathtbl_init(void)
+{
+	mesh_paths = mesh_table_alloc(INIT_PATHS_SIZE_ORDER);
+	mesh_paths->free_node = &mesh_path_node_free;
+	mesh_paths->copy_node = &mesh_path_node_copy;
+	mesh_paths->mean_chain_len = MEAN_CHAIN_LEN;
+	if (!mesh_paths)
+		return -ENOMEM;
+	return 0;
+}
+
+void mesh_path_expire(struct net_device *dev)
+{
+	struct mesh_path *mpath;
+	struct mpath_node *node;
+	struct hlist_node *p;
+	int i;
+
+	read_lock(&pathtbl_resize_lock);
+	for_each_mesh_entry(mesh_paths, p, node, i) {
+		if (node->mpath->dev != dev)
+			continue;
+		mpath = node->mpath;
+		spin_lock_bh(&mpath->state_lock);
+		if ((!(mpath->flags & MESH_PATH_RESOLVING)) &&
+		    (!(mpath->flags & MESH_PATH_FIXED)) &&
+			time_after(jiffies,
+			 mpath->exp_time + MESH_PATH_EXPIRE)) {
+			spin_unlock_bh(&mpath->state_lock);
+			mesh_path_del(mpath->dst, mpath->dev);
+		} else
+			spin_unlock_bh(&mpath->state_lock);
+	}
+	read_unlock(&pathtbl_resize_lock);
+}
+
+void mesh_pathtbl_unregister(void)
+{
+	mesh_table_free(mesh_paths, true);
+}
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
new file mode 100644
index 000000000000..37f0c2b94ae7
--- /dev/null
+++ b/net/mac80211/mesh_plink.c
@@ -0,0 +1,762 @@
+/*
+ * Copyright (c) 2008 open80211s Ltd.
+ * Author:     Luis Carlos Cobo <luisca@cozybit.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/random.h>
+#include "ieee80211_i.h"
+#include "rate.h"
+#include "mesh.h"
+
+#ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG
+#define mpl_dbg(fmt, args...)	printk(KERN_DEBUG fmt, ##args)
+#else
+#define mpl_dbg(fmt, args...)	do { (void)(0); } while (0)
+#endif
+
+#define PLINK_GET_FRAME_SUBTYPE(p) (p)
+#define PLINK_GET_LLID(p) (p + 1)
+#define PLINK_GET_PLID(p) (p + 3)
+
+#define mod_plink_timer(s, t) (mod_timer(&s->plink_timer, \
+				jiffies + HZ * t / 1000))
+
+/* Peer link cancel reasons, all subject to ANA approval */
+#define MESH_LINK_CANCELLED			2
+#define MESH_MAX_NEIGHBORS			3
+#define MESH_CAPABILITY_POLICY_VIOLATION	4
+#define MESH_CLOSE_RCVD				5
+#define MESH_MAX_RETRIES			6
+#define MESH_CONFIRM_TIMEOUT			7
+#define MESH_SECURITY_ROLE_NEGOTIATION_DIFFERS	8
+#define MESH_SECURITY_AUTHENTICATION_IMPOSSIBLE	9
+#define MESH_SECURITY_FAILED_VERIFICATION	10
+
+#define dot11MeshMaxRetries(s) (s->u.sta.mshcfg.dot11MeshMaxRetries)
+#define dot11MeshRetryTimeout(s) (s->u.sta.mshcfg.dot11MeshRetryTimeout)
+#define dot11MeshConfirmTimeout(s) (s->u.sta.mshcfg.dot11MeshConfirmTimeout)
+#define dot11MeshHoldingTimeout(s) (s->u.sta.mshcfg.dot11MeshHoldingTimeout)
+#define dot11MeshMaxPeerLinks(s) (s->u.sta.mshcfg.dot11MeshMaxPeerLinks)
+
+enum plink_frame_type {
+	PLINK_OPEN = 0,
+	PLINK_CONFIRM,
+	PLINK_CLOSE
+};
+
+enum plink_event {
+	PLINK_UNDEFINED,
+	OPN_ACPT,
+	OPN_RJCT,
+	OPN_IGNR,
+	CNF_ACPT,
+	CNF_RJCT,
+	CNF_IGNR,
+	CLS_ACPT,
+	CLS_IGNR
+};
+
+static inline
+void mesh_plink_inc_estab_count(struct ieee80211_sub_if_data *sdata)
+{
+	atomic_inc(&sdata->u.sta.mshstats.estab_plinks);
+	mesh_accept_plinks_update(sdata);
+}
+
+static inline
+void mesh_plink_dec_estab_count(struct ieee80211_sub_if_data *sdata)
+{
+	atomic_dec(&sdata->u.sta.mshstats.estab_plinks);
+	mesh_accept_plinks_update(sdata);
+}
+
+/**
+ * mesh_plink_fsm_restart - restart a mesh peer link finite state machine
+ *
+ * @sta: mes peer link to restart
+ *
+ * Locking: this function must be called holding sta->plink_lock
+ */
+static inline void mesh_plink_fsm_restart(struct sta_info *sta)
+{
+	sta->plink_state = PLINK_LISTEN;
+	sta->llid = sta->plid = sta->reason = 0;
+	sta->plink_retries = 0;
+}
+
+/*
+ * NOTE: This is just an alias for sta_info_alloc(), see notes
+ *       on it in the lifecycle management section!
+ */
+static struct sta_info *mesh_plink_alloc(struct ieee80211_sub_if_data *sdata,
+					 u8 *hw_addr, u64 rates)
+{
+	struct ieee80211_local *local = sdata->local;
+	struct sta_info *sta;
+
+	if (local->num_sta >= MESH_MAX_PLINKS)
+		return NULL;
+
+	sta = sta_info_alloc(sdata, hw_addr, GFP_ATOMIC);
+	if (!sta)
+		return NULL;
+
+	sta->flags |= WLAN_STA_AUTHORIZED;
+	sta->supp_rates[local->hw.conf.channel->band] = rates;
+
+	return sta;
+}
+
+/**
+ * mesh_plink_deactivate - deactivate mesh peer link
+ *
+ * @sta: mesh peer link to deactivate
+ *
+ * All mesh paths with this peer as next hop will be flushed
+ *
+ * Locking: the caller must hold sta->plink_lock
+ */
+static void __mesh_plink_deactivate(struct sta_info *sta)
+{
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
+
+	if (sta->plink_state == PLINK_ESTAB)
+		mesh_plink_dec_estab_count(sdata);
+	sta->plink_state = PLINK_BLOCKED;
+	mesh_path_flush_by_nexthop(sta);
+}
+
+/**
+ * __mesh_plink_deactivate - deactivate mesh peer link
+ *
+ * @sta: mesh peer link to deactivate
+ *
+ * All mesh paths with this peer as next hop will be flushed
+ */
+void mesh_plink_deactivate(struct sta_info *sta)
+{
+	spin_lock_bh(&sta->plink_lock);
+	__mesh_plink_deactivate(sta);
+	spin_unlock_bh(&sta->plink_lock);
+}
+
+static int mesh_plink_frame_tx(struct net_device *dev,
+		enum plink_frame_type action, u8 *da, __le16 llid, __le16 plid,
+		__le16 reason) {
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
+	struct ieee80211_mgmt *mgmt;
+	bool include_plid = false;
+	u8 *pos;
+	int ie_len;
+
+	if (!skb)
+		return -1;
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+	/* 25 is the size of the common mgmt part (24) plus the size of the
+	 * common action part (1)
+	 */
+	mgmt = (struct ieee80211_mgmt *)
+		skb_put(skb, 25 + sizeof(mgmt->u.action.u.plink_action));
+	memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.plink_action));
+	mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+					   IEEE80211_STYPE_ACTION);
+	memcpy(mgmt->da, da, ETH_ALEN);
+	memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+	/* BSSID is left zeroed, wildcard value */
+	mgmt->u.action.category = PLINK_CATEGORY;
+	mgmt->u.action.u.plink_action.action_code = action;
+
+	if (action == PLINK_CLOSE)
+		mgmt->u.action.u.plink_action.aux = reason;
+	else {
+		mgmt->u.action.u.plink_action.aux = cpu_to_le16(0x0);
+		if (action == PLINK_CONFIRM) {
+			pos = skb_put(skb, 4);
+			/* two-byte status code followed by two-byte AID */
+			memset(pos, 0, 4);
+		}
+		mesh_mgmt_ies_add(skb, dev);
+	}
+
+	/* Add Peer Link Management element */
+	switch (action) {
+	case PLINK_OPEN:
+		ie_len = 3;
+		break;
+	case PLINK_CONFIRM:
+		ie_len = 5;
+		include_plid = true;
+		break;
+	case PLINK_CLOSE:
+	default:
+		if (!plid)
+			ie_len = 5;
+		else {
+			ie_len = 7;
+			include_plid = true;
+		}
+		break;
+	}
+
+	pos = skb_put(skb, 2 + ie_len);
+	*pos++ = WLAN_EID_PEER_LINK;
+	*pos++ = ie_len;
+	*pos++ = action;
+	memcpy(pos, &llid, 2);
+	if (include_plid) {
+		pos += 2;
+		memcpy(pos, &plid, 2);
+	}
+	if (action == PLINK_CLOSE) {
+		pos += 2;
+		memcpy(pos, &reason, 2);
+	}
+
+	ieee80211_sta_tx(dev, skb, 0);
+	return 0;
+}
+
+void mesh_neighbour_update(u8 *hw_addr, u64 rates, struct net_device *dev,
+			   bool peer_accepting_plinks)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct sta_info *sta;
+
+	rcu_read_lock();
+
+	sta = sta_info_get(local, hw_addr);
+	if (!sta) {
+		sta = mesh_plink_alloc(sdata, hw_addr, rates);
+		if (!sta) {
+			rcu_read_unlock();
+			return;
+		}
+		if (sta_info_insert(sta)) {
+			rcu_read_unlock();
+			return;
+		}
+	}
+
+	sta->last_rx = jiffies;
+	sta->supp_rates[local->hw.conf.channel->band] = rates;
+	if (peer_accepting_plinks && sta->plink_state == PLINK_LISTEN &&
+			sdata->u.sta.accepting_plinks &&
+			sdata->u.sta.mshcfg.auto_open_plinks)
+		mesh_plink_open(sta);
+
+	rcu_read_unlock();
+}
+
+static void mesh_plink_timer(unsigned long data)
+{
+	struct sta_info *sta;
+	__le16 llid, plid, reason;
+	struct net_device *dev = NULL;
+	struct ieee80211_sub_if_data *sdata;
+#ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG
+	DECLARE_MAC_BUF(mac);
+#endif
+
+	/*
+	 * This STA is valid because sta_info_destroy() will
+	 * del_timer_sync() this timer after having made sure
+	 * it cannot be readded (by deleting the plink.)
+	 */
+	sta = (struct sta_info *) data;
+
+	spin_lock_bh(&sta->plink_lock);
+	if (sta->ignore_plink_timer) {
+		sta->ignore_plink_timer = false;
+		spin_unlock_bh(&sta->plink_lock);
+		return;
+	}
+	mpl_dbg("Mesh plink timer for %s fired on state %d\n",
+			print_mac(mac, sta->addr), sta->plink_state);
+	reason = 0;
+	llid = sta->llid;
+	plid = sta->plid;
+	sdata = sta->sdata;
+	dev = sdata->dev;
+
+	switch (sta->plink_state) {
+	case PLINK_OPN_RCVD:
+	case PLINK_OPN_SNT:
+		/* retry timer */
+		if (sta->plink_retries < dot11MeshMaxRetries(sdata)) {
+			u32 rand;
+			mpl_dbg("Mesh plink for %s (retry, timeout): %d %d\n",
+					print_mac(mac, sta->addr),
+					sta->plink_retries, sta->plink_timeout);
+			get_random_bytes(&rand, sizeof(u32));
+			sta->plink_timeout = sta->plink_timeout +
+					     rand % sta->plink_timeout;
+			++sta->plink_retries;
+			mod_plink_timer(sta, sta->plink_timeout);
+			spin_unlock_bh(&sta->plink_lock);
+			mesh_plink_frame_tx(dev, PLINK_OPEN, sta->addr, llid,
+					    0, 0);
+			break;
+		}
+		reason = cpu_to_le16(MESH_MAX_RETRIES);
+		/* fall through on else */
+	case PLINK_CNF_RCVD:
+		/* confirm timer */
+		if (!reason)
+			reason = cpu_to_le16(MESH_CONFIRM_TIMEOUT);
+		sta->plink_state = PLINK_HOLDING;
+		mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata));
+		spin_unlock_bh(&sta->plink_lock);
+		mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid, plid,
+				    reason);
+		break;
+	case PLINK_HOLDING:
+		/* holding timer */
+		del_timer(&sta->plink_timer);
+		mesh_plink_fsm_restart(sta);
+		spin_unlock_bh(&sta->plink_lock);
+		break;
+	default:
+		spin_unlock_bh(&sta->plink_lock);
+		break;
+	}
+}
+
+static inline void mesh_plink_timer_set(struct sta_info *sta, int timeout)
+{
+	sta->plink_timer.expires = jiffies + (HZ * timeout / 1000);
+	sta->plink_timer.data = (unsigned long) sta;
+	sta->plink_timer.function = mesh_plink_timer;
+	sta->plink_timeout = timeout;
+	add_timer(&sta->plink_timer);
+}
+
+int mesh_plink_open(struct sta_info *sta)
+{
+	__le16 llid;
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
+#ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG
+	DECLARE_MAC_BUF(mac);
+#endif
+
+	spin_lock_bh(&sta->plink_lock);
+	get_random_bytes(&llid, 2);
+	sta->llid = llid;
+	if (sta->plink_state != PLINK_LISTEN) {
+		spin_unlock_bh(&sta->plink_lock);
+		return -EBUSY;
+	}
+	sta->plink_state = PLINK_OPN_SNT;
+	mesh_plink_timer_set(sta, dot11MeshRetryTimeout(sdata));
+	spin_unlock_bh(&sta->plink_lock);
+	mpl_dbg("Mesh plink: starting establishment with %s\n",
+		print_mac(mac, sta->addr));
+
+	return mesh_plink_frame_tx(sdata->dev, PLINK_OPEN,
+				   sta->addr, llid, 0, 0);
+}
+
+void mesh_plink_block(struct sta_info *sta)
+{
+#ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG
+	DECLARE_MAC_BUF(mac);
+#endif
+
+	spin_lock_bh(&sta->plink_lock);
+	__mesh_plink_deactivate(sta);
+	sta->plink_state = PLINK_BLOCKED;
+	spin_unlock_bh(&sta->plink_lock);
+}
+
+int mesh_plink_close(struct sta_info *sta)
+{
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	__le16 llid, plid, reason;
+#ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG
+	DECLARE_MAC_BUF(mac);
+#endif
+
+	mpl_dbg("Mesh plink: closing link with %s\n",
+			print_mac(mac, sta->addr));
+	spin_lock_bh(&sta->plink_lock);
+	sta->reason = cpu_to_le16(MESH_LINK_CANCELLED);
+	reason = sta->reason;
+
+	if (sta->plink_state == PLINK_LISTEN ||
+	    sta->plink_state == PLINK_BLOCKED) {
+		mesh_plink_fsm_restart(sta);
+		spin_unlock_bh(&sta->plink_lock);
+		return 0;
+	} else if (sta->plink_state == PLINK_ESTAB) {
+		__mesh_plink_deactivate(sta);
+		/* The timer should not be running */
+		mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata));
+	} else if (!mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata)))
+		sta->ignore_plink_timer = true;
+
+	sta->plink_state = PLINK_HOLDING;
+	llid = sta->llid;
+	plid = sta->plid;
+	spin_unlock_bh(&sta->plink_lock);
+	mesh_plink_frame_tx(sta->sdata->dev, PLINK_CLOSE, sta->addr, llid,
+			    plid, reason);
+	return 0;
+}
+
+void mesh_rx_plink_frame(struct net_device *dev, struct ieee80211_mgmt *mgmt,
+			 size_t len, struct ieee80211_rx_status *rx_status)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = sdata->local;
+	struct ieee802_11_elems elems;
+	struct sta_info *sta;
+	enum plink_event event;
+	enum plink_frame_type ftype;
+	size_t baselen;
+	u8 ie_len;
+	u8 *baseaddr;
+	__le16 plid, llid, reason;
+#ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG
+	DECLARE_MAC_BUF(mac);
+#endif
+
+	if (is_multicast_ether_addr(mgmt->da)) {
+		mpl_dbg("Mesh plink: ignore frame from multicast address");
+		return;
+	}
+
+	baseaddr = mgmt->u.action.u.plink_action.variable;
+	baselen = (u8 *) mgmt->u.action.u.plink_action.variable - (u8 *) mgmt;
+	if (mgmt->u.action.u.plink_action.action_code == PLINK_CONFIRM) {
+		baseaddr += 4;
+		baselen -= 4;
+	}
+	ieee802_11_parse_elems(baseaddr, len - baselen, &elems);
+	if (!elems.peer_link) {
+		mpl_dbg("Mesh plink: missing necessary peer link ie\n");
+		return;
+	}
+
+	ftype = *((u8 *)PLINK_GET_FRAME_SUBTYPE(elems.peer_link));
+	ie_len = elems.peer_link_len;
+	if ((ftype == PLINK_OPEN && ie_len != 3) ||
+	    (ftype == PLINK_CONFIRM && ie_len != 5) ||
+	    (ftype == PLINK_CLOSE && ie_len != 5 && ie_len != 7)) {
+		mpl_dbg("Mesh plink: incorrect plink ie length\n");
+		return;
+	}
+
+	if (ftype != PLINK_CLOSE && (!elems.mesh_id || !elems.mesh_config)) {
+		mpl_dbg("Mesh plink: missing necessary ie\n");
+		return;
+	}
+	/* Note the lines below are correct, the llid in the frame is the plid
+	 * from the point of view of this host.
+	 */
+	memcpy(&plid, PLINK_GET_LLID(elems.peer_link), 2);
+	if (ftype == PLINK_CONFIRM || (ftype == PLINK_CLOSE && ie_len == 7))
+		memcpy(&llid, PLINK_GET_PLID(elems.peer_link), 2);
+
+	rcu_read_lock();
+
+	sta = sta_info_get(local, mgmt->sa);
+	if (!sta && ftype != PLINK_OPEN) {
+		mpl_dbg("Mesh plink: cls or cnf from unknown peer\n");
+		rcu_read_unlock();
+		return;
+	}
+
+	if (sta && sta->plink_state == PLINK_BLOCKED) {
+		rcu_read_unlock();
+		return;
+	}
+
+	/* Now we will figure out the appropriate event... */
+	event = PLINK_UNDEFINED;
+	if (ftype != PLINK_CLOSE && (!mesh_matches_local(&elems, dev))) {
+		switch (ftype) {
+		case PLINK_OPEN:
+			event = OPN_RJCT;
+			break;
+		case PLINK_CONFIRM:
+			event = CNF_RJCT;
+			break;
+		case PLINK_CLOSE:
+			/* avoid warning */
+			break;
+		}
+		spin_lock_bh(&sta->plink_lock);
+	} else if (!sta) {
+		/* ftype == PLINK_OPEN */
+		u64 rates;
+		if (!mesh_plink_free_count(sdata)) {
+			mpl_dbg("Mesh plink error: no more free plinks\n");
+			rcu_read_unlock();
+			return;
+		}
+
+		rates = ieee80211_sta_get_rates(local, &elems, rx_status->band);
+		sta = mesh_plink_alloc(sdata, mgmt->sa, rates);
+		if (!sta) {
+			mpl_dbg("Mesh plink error: plink table full\n");
+			rcu_read_unlock();
+			return;
+		}
+		if (sta_info_insert(sta)) {
+			rcu_read_unlock();
+			return;
+		}
+		event = OPN_ACPT;
+		spin_lock_bh(&sta->plink_lock);
+	} else {
+		spin_lock_bh(&sta->plink_lock);
+		switch (ftype) {
+		case PLINK_OPEN:
+			if (!mesh_plink_free_count(sdata) ||
+			    (sta->plid && sta->plid != plid))
+				event = OPN_IGNR;
+			else
+				event = OPN_ACPT;
+			break;
+		case PLINK_CONFIRM:
+			if (!mesh_plink_free_count(sdata) ||
+			    (sta->llid != llid || sta->plid != plid))
+				event = CNF_IGNR;
+			else
+				event = CNF_ACPT;
+			break;
+		case PLINK_CLOSE:
+			if (sta->plink_state == PLINK_ESTAB)
+				/* Do not check for llid or plid. This does not
+				 * follow the standard but since multiple plinks
+				 * per sta are not supported, it is necessary in
+				 * order to avoid a livelock when MP A sees an
+				 * establish peer link to MP B but MP B does not
+				 * see it. This can be caused by a timeout in
+				 * B's peer link establishment or B beign
+				 * restarted.
+				 */
+				event = CLS_ACPT;
+			else if (sta->plid != plid)
+				event = CLS_IGNR;
+			else if (ie_len == 7 && sta->llid != llid)
+				event = CLS_IGNR;
+			else
+				event = CLS_ACPT;
+			break;
+		default:
+			mpl_dbg("Mesh plink: unknown frame subtype\n");
+			spin_unlock_bh(&sta->plink_lock);
+			rcu_read_unlock();
+			return;
+		}
+	}
+
+	mpl_dbg("Mesh plink (peer, state, llid, plid, event): %s %d %d %d %d\n",
+			print_mac(mac, mgmt->sa), sta->plink_state,
+			le16_to_cpu(sta->llid), le16_to_cpu(sta->plid),
+			event);
+	reason = 0;
+	switch (sta->plink_state) {
+		/* spin_unlock as soon as state is updated at each case */
+	case PLINK_LISTEN:
+		switch (event) {
+		case CLS_ACPT:
+			mesh_plink_fsm_restart(sta);
+			spin_unlock_bh(&sta->plink_lock);
+			break;
+		case OPN_ACPT:
+			sta->plink_state = PLINK_OPN_RCVD;
+			sta->plid = plid;
+			get_random_bytes(&llid, 2);
+			sta->llid = llid;
+			mesh_plink_timer_set(sta, dot11MeshRetryTimeout(sdata));
+			spin_unlock_bh(&sta->plink_lock);
+			mesh_plink_frame_tx(dev, PLINK_OPEN, sta->addr, llid,
+					    0, 0);
+			mesh_plink_frame_tx(dev, PLINK_CONFIRM, sta->addr,
+					    llid, plid, 0);
+			break;
+		default:
+			spin_unlock_bh(&sta->plink_lock);
+			break;
+		}
+		break;
+
+	case PLINK_OPN_SNT:
+		switch (event) {
+		case OPN_RJCT:
+		case CNF_RJCT:
+			reason = cpu_to_le16(MESH_CAPABILITY_POLICY_VIOLATION);
+		case CLS_ACPT:
+			if (!reason)
+				reason = cpu_to_le16(MESH_CLOSE_RCVD);
+			sta->reason = reason;
+			sta->plink_state = PLINK_HOLDING;
+			if (!mod_plink_timer(sta,
+					     dot11MeshHoldingTimeout(sdata)))
+				sta->ignore_plink_timer = true;
+
+			llid = sta->llid;
+			spin_unlock_bh(&sta->plink_lock);
+			mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid,
+					    plid, reason);
+			break;
+		case OPN_ACPT:
+			/* retry timer is left untouched */
+			sta->plink_state = PLINK_OPN_RCVD;
+			sta->plid = plid;
+			llid = sta->llid;
+			spin_unlock_bh(&sta->plink_lock);
+			mesh_plink_frame_tx(dev, PLINK_CONFIRM, sta->addr, llid,
+					    plid, 0);
+			break;
+		case CNF_ACPT:
+			sta->plink_state = PLINK_CNF_RCVD;
+			if (!mod_plink_timer(sta,
+					     dot11MeshConfirmTimeout(sdata)))
+				sta->ignore_plink_timer = true;
+
+			spin_unlock_bh(&sta->plink_lock);
+			break;
+		default:
+			spin_unlock_bh(&sta->plink_lock);
+			break;
+		}
+		break;
+
+	case PLINK_OPN_RCVD:
+		switch (event) {
+		case OPN_RJCT:
+		case CNF_RJCT:
+			reason = cpu_to_le16(MESH_CAPABILITY_POLICY_VIOLATION);
+		case CLS_ACPT:
+			if (!reason)
+				reason = cpu_to_le16(MESH_CLOSE_RCVD);
+			sta->reason = reason;
+			sta->plink_state = PLINK_HOLDING;
+			if (!mod_plink_timer(sta,
+					     dot11MeshHoldingTimeout(sdata)))
+				sta->ignore_plink_timer = true;
+
+			llid = sta->llid;
+			spin_unlock_bh(&sta->plink_lock);
+			mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid,
+					    plid, reason);
+			break;
+		case OPN_ACPT:
+			llid = sta->llid;
+			spin_unlock_bh(&sta->plink_lock);
+			mesh_plink_frame_tx(dev, PLINK_CONFIRM, sta->addr, llid,
+					    plid, 0);
+			break;
+		case CNF_ACPT:
+			del_timer(&sta->plink_timer);
+			sta->plink_state = PLINK_ESTAB;
+			mesh_plink_inc_estab_count(sdata);
+			spin_unlock_bh(&sta->plink_lock);
+			mpl_dbg("Mesh plink with %s ESTABLISHED\n",
+					print_mac(mac, sta->addr));
+			break;
+		default:
+			spin_unlock_bh(&sta->plink_lock);
+			break;
+		}
+		break;
+
+	case PLINK_CNF_RCVD:
+		switch (event) {
+		case OPN_RJCT:
+		case CNF_RJCT:
+			reason = cpu_to_le16(MESH_CAPABILITY_POLICY_VIOLATION);
+		case CLS_ACPT:
+			if (!reason)
+				reason = cpu_to_le16(MESH_CLOSE_RCVD);
+			sta->reason = reason;
+			sta->plink_state = PLINK_HOLDING;
+			if (!mod_plink_timer(sta,
+					     dot11MeshHoldingTimeout(sdata)))
+				sta->ignore_plink_timer = true;
+
+			llid = sta->llid;
+			spin_unlock_bh(&sta->plink_lock);
+			mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid,
+					    plid, reason);
+			break;
+		case OPN_ACPT:
+			del_timer(&sta->plink_timer);
+			sta->plink_state = PLINK_ESTAB;
+			mesh_plink_inc_estab_count(sdata);
+			spin_unlock_bh(&sta->plink_lock);
+			mpl_dbg("Mesh plink with %s ESTABLISHED\n",
+					print_mac(mac, sta->addr));
+			mesh_plink_frame_tx(dev, PLINK_CONFIRM, sta->addr, llid,
+					    plid, 0);
+			break;
+		default:
+			spin_unlock_bh(&sta->plink_lock);
+			break;
+		}
+		break;
+
+	case PLINK_ESTAB:
+		switch (event) {
+		case CLS_ACPT:
+			reason = cpu_to_le16(MESH_CLOSE_RCVD);
+			sta->reason = reason;
+			__mesh_plink_deactivate(sta);
+			sta->plink_state = PLINK_HOLDING;
+			llid = sta->llid;
+			mod_plink_timer(sta, dot11MeshHoldingTimeout(sdata));
+			spin_unlock_bh(&sta->plink_lock);
+			mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid,
+					    plid, reason);
+			break;
+		case OPN_ACPT:
+			llid = sta->llid;
+			spin_unlock_bh(&sta->plink_lock);
+			mesh_plink_frame_tx(dev, PLINK_CONFIRM, sta->addr, llid,
+					    plid, 0);
+			break;
+		default:
+			spin_unlock_bh(&sta->plink_lock);
+			break;
+		}
+		break;
+	case PLINK_HOLDING:
+		switch (event) {
+		case CLS_ACPT:
+			if (del_timer(&sta->plink_timer))
+				sta->ignore_plink_timer = 1;
+			mesh_plink_fsm_restart(sta);
+			spin_unlock_bh(&sta->plink_lock);
+			break;
+		case OPN_ACPT:
+		case CNF_ACPT:
+		case OPN_RJCT:
+		case CNF_RJCT:
+			llid = sta->llid;
+			reason = sta->reason;
+			spin_unlock_bh(&sta->plink_lock);
+			mesh_plink_frame_tx(dev, PLINK_CLOSE, sta->addr, llid,
+					    plid, reason);
+			break;
+		default:
+			spin_unlock_bh(&sta->plink_lock);
+		}
+		break;
+	default:
+		/* should not get here, PLINK_BLOCKED is dealt with at the
+		 * beggining of the function
+		 */
+		spin_unlock_bh(&sta->plink_lock);
+		break;
+	}
+
+	rcu_read_unlock();
+}
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/mlme.c
index c1706855460a..6b75cb6c6300 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/mlme.c
@@ -24,19 +24,22 @@
 #include <linux/wireless.h>
 #include <linux/random.h>
 #include <linux/etherdevice.h>
+#include <linux/rtnetlink.h>
 #include <net/iw_handler.h>
 #include <asm/types.h>
 
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "ieee80211_led.h"
+#include "rate.h"
+#include "led.h"
+#include "mesh.h"
 
 #define IEEE80211_AUTH_TIMEOUT (HZ / 5)
 #define IEEE80211_AUTH_MAX_TRIES 3
 #define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
 #define IEEE80211_ASSOC_MAX_TRIES 3
 #define IEEE80211_MONITORING_INTERVAL (2 * HZ)
+#define IEEE80211_MESH_HOUSEKEEPING_INTERVAL (60 * HZ)
 #define IEEE80211_PROBE_INTERVAL (60 * HZ)
 #define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
 #define IEEE80211_SCAN_INTERVAL (2 * HZ)
@@ -49,12 +52,11 @@
 #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
 #define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
 #define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
+#define IEEE80211_MESH_PEER_INACTIVITY_LIMIT (1800 * HZ)
 
 #define IEEE80211_IBSS_MAX_STA_ENTRIES 128
 
 
-#define IEEE80211_FC(type, stype) cpu_to_le16(type | stype)
-
 #define ERP_INFO_USE_PROTECTION BIT(1)
 
 /* mgmt header + 1 byte action code */
@@ -74,7 +76,7 @@
 static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
 				     u8 *ssid, size_t ssid_len);
 static struct ieee80211_sta_bss *
-ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int channel,
+ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq,
 		     u8 *ssid, u8 ssid_len);
 static void ieee80211_rx_bss_put(struct net_device *dev,
 				 struct ieee80211_sta_bss *bss);
@@ -87,46 +89,8 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
 				     struct ieee80211_if_sta *ifsta);
 
 
-/* Parsed Information Elements */
-struct ieee802_11_elems {
-	/* pointers to IEs */
-	u8 *ssid;
-	u8 *supp_rates;
-	u8 *fh_params;
-	u8 *ds_params;
-	u8 *cf_params;
-	u8 *tim;
-	u8 *ibss_params;
-	u8 *challenge;
-	u8 *wpa;
-	u8 *rsn;
-	u8 *erp_info;
-	u8 *ext_supp_rates;
-	u8 *wmm_info;
-	u8 *wmm_param;
-	u8 *ht_cap_elem;
-	u8 *ht_info_elem;
-	/* length of them, respectively */
-	u8 ssid_len;
-	u8 supp_rates_len;
-	u8 fh_params_len;
-	u8 ds_params_len;
-	u8 cf_params_len;
-	u8 tim_len;
-	u8 ibss_params_len;
-	u8 challenge_len;
-	u8 wpa_len;
-	u8 rsn_len;
-	u8 erp_info_len;
-	u8 ext_supp_rates_len;
-	u8 wmm_info_len;
-	u8 wmm_param_len;
-	u8 ht_cap_elem_len;
-	u8 ht_info_elem_len;
-};
-
-static void ieee802_11_parse_elems(u8 *start, size_t len,
-				   struct ieee802_11_elems *elems)
+void ieee802_11_parse_elems(u8 *start, size_t len,
+			    struct ieee802_11_elems *elems)
 {
 	size_t left = len;
 	u8 *pos = start;
@@ -215,6 +179,30 @@ static void ieee802_11_parse_elems(u8 *start, size_t len,
 			elems->ht_info_elem = pos;
 			elems->ht_info_elem_len = elen;
 			break;
+		case WLAN_EID_MESH_ID:
+			elems->mesh_id = pos;
+			elems->mesh_id_len = elen;
+			break;
+		case WLAN_EID_MESH_CONFIG:
+			elems->mesh_config = pos;
+			elems->mesh_config_len = elen;
+			break;
+		case WLAN_EID_PEER_LINK:
+			elems->peer_link = pos;
+			elems->peer_link_len = elen;
+			break;
+		case WLAN_EID_PREQ:
+			elems->preq = pos;
+			elems->preq_len = elen;
+			break;
+		case WLAN_EID_PREP:
+			elems->prep = pos;
+			elems->prep_len = elen;
+			break;
+		case WLAN_EID_PERR:
+			elems->perr = pos;
+			elems->perr_len = elen;
+			break;
 		default:
 			break;
 		}
@@ -227,12 +215,61 @@ static void ieee802_11_parse_elems(u8 *start, size_t len,
 
 static int ecw2cw(int ecw)
 {
-	int cw = 1;
-	while (ecw > 0) {
-		cw <<= 1;
-		ecw--;
+	return (1 << ecw) - 1;
+}
+
+
+static void ieee80211_sta_def_wmm_params(struct net_device *dev,
+					 struct ieee80211_sta_bss *bss,
+					 int ibss)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = sdata->local;
+	int i, have_higher_than_11mbit = 0;
+
+
+	/* cf. IEEE 802.11 9.2.12 */
+	for (i = 0; i < bss->supp_rates_len; i++)
+		if ((bss->supp_rates[i] & 0x7f) * 5 > 110)
+			have_higher_than_11mbit = 1;
+
+	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
+	    have_higher_than_11mbit)
+		sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
+	else
+		sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
+
+
+	if (local->ops->conf_tx) {
+		struct ieee80211_tx_queue_params qparam;
+
+		memset(&qparam, 0, sizeof(qparam));
+
+		qparam.aifs = 2;
+
+		if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
+		    !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE))
+			qparam.cw_min = 31;
+		else
+			qparam.cw_min = 15;
+
+		qparam.cw_max = 1023;
+		qparam.txop = 0;
+
+		for (i = IEEE80211_TX_QUEUE_DATA0; i < NUM_TX_DATA_QUEUES; i++)
+			local->ops->conf_tx(local_to_hw(local),
+					   i + IEEE80211_TX_QUEUE_DATA0,
+					   &qparam);
+
+		if (ibss) {
+			/* IBSS uses different parameters for Beacon sending */
+			qparam.cw_min++;
+			qparam.cw_min *= 2;
+			qparam.cw_min--;
+			local->ops->conf_tx(local_to_hw(local),
+					   IEEE80211_TX_QUEUE_BEACON, &qparam);
+		}
 	}
-	return cw - 1;
 }
 
 static void ieee80211_sta_wmm_params(struct net_device *dev,
@@ -297,12 +334,13 @@ static void ieee80211_sta_wmm_params(struct net_device *dev,
 		params.aifs = pos[0] & 0x0f;
 		params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
 		params.cw_min = ecw2cw(pos[1] & 0x0f);
-		/* TXOP is in units of 32 usec; burst_time in 0.1 ms */
-		params.burst_time = (pos[2] | (pos[3] << 8)) * 32 / 100;
+		params.txop = pos[2] | (pos[3] << 8);
+#ifdef CONFIG_MAC80211_DEBUG
 		printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
-		       "cWmin=%d cWmax=%d burst=%d\n",
+		       "cWmin=%d cWmax=%d txop=%d\n",
 		       dev->name, queue, aci, acm, params.aifs, params.cw_min,
-		       params.cw_max, params.burst_time);
+		       params.cw_max, params.txop);
+#endif
 		/* TODO: handle ACM (block TX, fallback to next lowest allowed
 		 * AC for now) */
 		if (local->ops->conf_tx(local_to_hw(local), queue, &params)) {
@@ -477,6 +515,7 @@ static void ieee80211_set_associated(struct net_device *dev,
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_conf *conf = &local_to_hw(local)->conf;
 	union iwreq_data wrqu;
 	u32 changed = BSS_CHANGED_ASSOC;
 
@@ -489,31 +528,49 @@ static void ieee80211_set_associated(struct net_device *dev,
 			return;
 
 		bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
-					   local->hw.conf.channel,
+					   conf->channel->center_freq,
 					   ifsta->ssid, ifsta->ssid_len);
 		if (bss) {
+			/* set timing information */
+			sdata->bss_conf.beacon_int = bss->beacon_int;
+			sdata->bss_conf.timestamp = bss->timestamp;
+
 			changed |= ieee80211_handle_bss_capability(sdata, bss);
+
 			ieee80211_rx_bss_put(dev, bss);
 		}
 
+		if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
+			changed |= BSS_CHANGED_HT;
+			sdata->bss_conf.assoc_ht = 1;
+			sdata->bss_conf.ht_conf = &conf->ht_conf;
+			sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf;
+		}
+
 		netif_carrier_on(dev);
 		ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
 		memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
 		memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
 		ieee80211_sta_send_associnfo(dev, ifsta);
 	} else {
+		ieee80211_sta_tear_down_BA_sessions(dev, ifsta->bssid);
 		ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
-
 		netif_carrier_off(dev);
 		ieee80211_reset_erp_info(dev);
+
+		sdata->bss_conf.assoc_ht = 0;
+		sdata->bss_conf.ht_conf = NULL;
+		sdata->bss_conf.ht_bss_conf = NULL;
+
 		memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
 	}
-	wrqu.ap_addr.sa_family = ARPHRD_ETHER;
-	wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
 	ifsta->last_probe = jiffies;
 	ieee80211_led_assoc(local, assoc);
 
+	sdata->bss_conf.assoc = assoc;
 	ieee80211_bss_info_change_notify(sdata, changed);
+	wrqu.ap_addr.sa_family = ARPHRD_ETHER;
+	wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
 }
 
 static void ieee80211_set_disassoc(struct net_device *dev,
@@ -525,8 +582,8 @@ static void ieee80211_set_disassoc(struct net_device *dev,
 	ieee80211_set_associated(dev, ifsta, 0);
 }
 
-static void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
-			     int encrypt)
+void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
+		      int encrypt)
 {
 	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_tx_packet_data *pkt_data;
@@ -613,7 +670,6 @@ static void ieee80211_send_assoc(struct net_device *dev,
 				 struct ieee80211_if_sta *ifsta)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_hw_mode *mode;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
 	u8 *pos, *ies;
@@ -621,6 +677,7 @@ static void ieee80211_send_assoc(struct net_device *dev,
 	u16 capab;
 	struct ieee80211_sta_bss *bss;
 	int wmm = 0;
+	struct ieee80211_supported_band *sband;
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
 			    sizeof(*mgmt) + 200 + ifsta->extra_ie_len +
@@ -632,13 +689,19 @@ static void ieee80211_send_assoc(struct net_device *dev,
 	}
 	skb_reserve(skb, local->hw.extra_tx_headroom);
 
-	mode = local->oper_hw_mode;
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
 	capab = ifsta->capab;
-	if (mode->mode == MODE_IEEE80211G) {
-		capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME |
-			WLAN_CAPABILITY_SHORT_PREAMBLE;
+
+	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) {
+		if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
+			capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
+		if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
+			capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
 	}
-	bss = ieee80211_rx_bss_get(dev, ifsta->bssid, local->hw.conf.channel,
+
+	bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
+				   local->hw.conf.channel->center_freq,
 				   ifsta->ssid, ifsta->ssid_len);
 	if (bss) {
 		if (bss->capability & WLAN_CAPABILITY_PRIVACY)
@@ -677,23 +740,23 @@ static void ieee80211_send_assoc(struct net_device *dev,
 	*pos++ = ifsta->ssid_len;
 	memcpy(pos, ifsta->ssid, ifsta->ssid_len);
 
-	len = mode->num_rates;
+	len = sband->n_bitrates;
 	if (len > 8)
 		len = 8;
 	pos = skb_put(skb, len + 2);
 	*pos++ = WLAN_EID_SUPP_RATES;
 	*pos++ = len;
 	for (i = 0; i < len; i++) {
-		int rate = mode->rates[i].rate;
+		int rate = sband->bitrates[i].bitrate;
 		*pos++ = (u8) (rate / 5);
 	}
 
-	if (mode->num_rates > len) {
-		pos = skb_put(skb, mode->num_rates - len + 2);
+	if (sband->n_bitrates > len) {
+		pos = skb_put(skb, sband->n_bitrates - len + 2);
 		*pos++ = WLAN_EID_EXT_SUPP_RATES;
-		*pos++ = mode->num_rates - len;
-		for (i = len; i < mode->num_rates; i++) {
-			int rate = mode->rates[i].rate;
+		*pos++ = sband->n_bitrates - len;
+		for (i = len; i < sband->n_bitrates; i++) {
+			int rate = sband->bitrates[i].bitrate;
 			*pos++ = (u8) (rate / 5);
 		}
 	}
@@ -716,17 +779,18 @@ static void ieee80211_send_assoc(struct net_device *dev,
 		*pos++ = 0;
 	}
 	/* wmm support is a must to HT */
-	if (wmm && mode->ht_info.ht_supported) {
-		__le16 tmp = cpu_to_le16(mode->ht_info.cap);
+	if (wmm && sband->ht_info.ht_supported) {
+		__le16 tmp = cpu_to_le16(sband->ht_info.cap);
 		pos = skb_put(skb, sizeof(struct ieee80211_ht_cap)+2);
 		*pos++ = WLAN_EID_HT_CAPABILITY;
 		*pos++ = sizeof(struct ieee80211_ht_cap);
 		memset(pos, 0, sizeof(struct ieee80211_ht_cap));
 		memcpy(pos, &tmp, sizeof(u16));
 		pos += sizeof(u16);
-		*pos++ = (mode->ht_info.ampdu_factor |
-				(mode->ht_info.ampdu_density << 2));
-		memcpy(pos, mode->ht_info.supp_mcs_set, 16);
+		/* TODO: needs a define here for << 2 */
+		*pos++ = sband->ht_info.ampdu_factor |
+			 (sband->ht_info.ampdu_density << 2);
+		memcpy(pos, sband->ht_info.supp_mcs_set, 16);
 	}
 
 	kfree(ifsta->assocreq_ies);
@@ -809,7 +873,8 @@ static int ieee80211_privacy_mismatch(struct net_device *dev,
 	if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL))
 		return 0;
 
-	bss = ieee80211_rx_bss_get(dev, ifsta->bssid, local->hw.conf.channel,
+	bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
+				   local->hw.conf.channel->center_freq,
 				   ifsta->ssid, ifsta->ssid_len);
 	if (!bss)
 		return 0;
@@ -872,6 +937,8 @@ static void ieee80211_associated(struct net_device *dev,
 
 	ifsta->state = IEEE80211_ASSOCIATED;
 
+	rcu_read_lock();
+
 	sta = sta_info_get(local, ifsta->bssid);
 	if (!sta) {
 		printk(KERN_DEBUG "%s: No STA entry for own AP %s\n",
@@ -887,7 +954,7 @@ static void ieee80211_associated(struct net_device *dev,
 				       "range\n",
 				       dev->name, print_mac(mac, ifsta->bssid));
 				disassoc = 1;
-				sta_info_free(sta);
+				sta_info_unlink(&sta);
 			} else
 				ieee80211_send_probe_req(dev, ifsta->bssid,
 							 local->scan_ssid,
@@ -903,8 +970,13 @@ static void ieee80211_associated(struct net_device *dev,
 							 ifsta->ssid_len);
 			}
 		}
-		sta_info_put(sta);
 	}
+
+	rcu_read_unlock();
+
+	if (disassoc && sta)
+		sta_info_destroy(sta);
+
 	if (disassoc) {
 		ifsta->state = IEEE80211_DISABLED;
 		ieee80211_set_associated(dev, ifsta, 0);
@@ -919,7 +991,7 @@ static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
 				     u8 *ssid, size_t ssid_len)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_hw_mode *mode;
+	struct ieee80211_supported_band *sband;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
 	u8 *pos, *supp_rates, *esupp_rates = NULL;
@@ -953,11 +1025,10 @@ static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
 	supp_rates = skb_put(skb, 2);
 	supp_rates[0] = WLAN_EID_SUPP_RATES;
 	supp_rates[1] = 0;
-	mode = local->oper_hw_mode;
-	for (i = 0; i < mode->num_rates; i++) {
-		struct ieee80211_rate *rate = &mode->rates[i];
-		if (!(rate->flags & IEEE80211_RATE_SUPPORTED))
-			continue;
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+	for (i = 0; i < sband->n_bitrates; i++) {
+		struct ieee80211_rate *rate = &sband->bitrates[i];
 		if (esupp_rates) {
 			pos = skb_put(skb, 1);
 			esupp_rates[1]++;
@@ -970,7 +1041,7 @@ static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
 			pos = skb_put(skb, 1);
 			supp_rates[1]++;
 		}
-		*pos = rate->rate / 5;
+		*pos = rate->bitrate / 5;
 	}
 
 	ieee80211_sta_tx(dev, skb, 0);
@@ -1065,6 +1136,58 @@ static void ieee80211_send_addba_resp(struct net_device *dev, u8 *da, u16 tid,
 	return;
 }
 
+void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
+				u16 tid, u8 dialog_token, u16 start_seq_num,
+				u16 agg_size, u16 timeout)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	u16 capab;
+
+	skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom + 1 +
+				sizeof(mgmt->u.action.u.addba_req));
+
+
+	if (!skb) {
+		printk(KERN_ERR "%s: failed to allocate buffer "
+				"for addba request frame\n", dev->name);
+		return;
+	}
+	skb_reserve(skb, local->hw.extra_tx_headroom);
+	mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+	memset(mgmt, 0, 24);
+	memcpy(mgmt->da, da, ETH_ALEN);
+	memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+	if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
+		memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN);
+	else
+		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+
+	mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+					IEEE80211_STYPE_ACTION);
+
+	skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_req));
+
+	mgmt->u.action.category = WLAN_CATEGORY_BACK;
+	mgmt->u.action.u.addba_req.action_code = WLAN_ACTION_ADDBA_REQ;
+
+	mgmt->u.action.u.addba_req.dialog_token = dialog_token;
+	capab = (u16)(1 << 1);		/* bit 1 aggregation policy */
+	capab |= (u16)(tid << 2); 	/* bit 5:2 TID number */
+	capab |= (u16)(agg_size << 6);	/* bit 15:6 max size of aggergation */
+
+	mgmt->u.action.u.addba_req.capab = cpu_to_le16(capab);
+
+	mgmt->u.action.u.addba_req.timeout = cpu_to_le16(timeout);
+	mgmt->u.action.u.addba_req.start_seq_num =
+					cpu_to_le16(start_seq_num << 4);
+
+	ieee80211_sta_tx(dev, skb, 0);
+}
+
 static void ieee80211_sta_process_addba_request(struct net_device *dev,
 						struct ieee80211_mgmt *mgmt,
 						size_t len)
@@ -1079,9 +1202,13 @@ static void ieee80211_sta_process_addba_request(struct net_device *dev,
 	int ret = -EOPNOTSUPP;
 	DECLARE_MAC_BUF(mac);
 
+	rcu_read_lock();
+
 	sta = sta_info_get(local, mgmt->sa);
-	if (!sta)
+	if (!sta) {
+		rcu_read_unlock();
 		return;
+	}
 
 	/* extract session parameters from addba request frame */
 	dialog_token = mgmt->u.action.u.addba_req.dialog_token;
@@ -1105,7 +1232,7 @@ static void ieee80211_sta_process_addba_request(struct net_device *dev,
 		status = WLAN_STATUS_INVALID_QOS_PARAM;
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		if (net_ratelimit())
-			printk(KERN_DEBUG "Block Ack Req with bad params from "
+			printk(KERN_DEBUG "AddBA Req with bad params from "
 				"%s on tid %u. policy %d, buffer size %d\n",
 				print_mac(mac, mgmt->sa), tid, ba_policy,
 				buf_size);
@@ -1114,26 +1241,45 @@ static void ieee80211_sta_process_addba_request(struct net_device *dev,
 	}
 	/* determine default buffer size */
 	if (buf_size == 0) {
-		struct ieee80211_hw_mode *mode = conf->mode;
+		struct ieee80211_supported_band *sband;
+
+		sband = local->hw.wiphy->bands[conf->channel->band];
 		buf_size = IEEE80211_MIN_AMPDU_BUF;
-		buf_size = buf_size << mode->ht_info.ampdu_factor;
+		buf_size = buf_size << sband->ht_info.ampdu_factor;
 	}
 
-	tid_agg_rx = &sta->ampdu_mlme.tid_rx[tid];
 
 	/* examine state machine */
 	spin_lock_bh(&sta->ampdu_mlme.ampdu_rx);
 
-	if (tid_agg_rx->state != HT_AGG_STATE_IDLE) {
+	if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_IDLE) {
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		if (net_ratelimit())
-			printk(KERN_DEBUG "unexpected Block Ack Req from "
+			printk(KERN_DEBUG "unexpected AddBA Req from "
 				"%s on tid %u\n",
 				print_mac(mac, mgmt->sa), tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 		goto end;
 	}
 
+	/* prepare A-MPDU MLME for Rx aggregation */
+	sta->ampdu_mlme.tid_rx[tid] =
+			kmalloc(sizeof(struct tid_ampdu_rx), GFP_ATOMIC);
+	if (!sta->ampdu_mlme.tid_rx[tid]) {
+		if (net_ratelimit())
+			printk(KERN_ERR "allocate rx mlme to tid %d failed\n",
+					tid);
+		goto end;
+	}
+	/* rx timer */
+	sta->ampdu_mlme.tid_rx[tid]->session_timer.function =
+				sta_rx_agg_session_timer_expired;
+	sta->ampdu_mlme.tid_rx[tid]->session_timer.data =
+				(unsigned long)&sta->timer_to_tid[tid];
+	init_timer(&sta->ampdu_mlme.tid_rx[tid]->session_timer);
+
+	tid_agg_rx = sta->ampdu_mlme.tid_rx[tid];
+
 	/* prepare reordering buffer */
 	tid_agg_rx->reorder_buf =
 		kmalloc(buf_size * sizeof(struct sk_buf *), GFP_ATOMIC);
@@ -1141,6 +1287,7 @@ static void ieee80211_sta_process_addba_request(struct net_device *dev,
 		if (net_ratelimit())
 			printk(KERN_ERR "can not allocate reordering buffer "
 			       "to tid %d\n", tid);
+		kfree(sta->ampdu_mlme.tid_rx[tid]);
 		goto end;
 	}
 	memset(tid_agg_rx->reorder_buf, 0,
@@ -1148,18 +1295,20 @@ static void ieee80211_sta_process_addba_request(struct net_device *dev,
 
 	if (local->ops->ampdu_action)
 		ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START,
-					       sta->addr, tid, start_seq_num);
+					       sta->addr, tid, &start_seq_num);
 #ifdef CONFIG_MAC80211_HT_DEBUG
-	printk(KERN_DEBUG "Rx A-MPDU on tid %d result %d", tid, ret);
+	printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
 	if (ret) {
 		kfree(tid_agg_rx->reorder_buf);
+		kfree(tid_agg_rx);
+		sta->ampdu_mlme.tid_rx[tid] = NULL;
 		goto end;
 	}
 
 	/* change state and send addba resp */
-	tid_agg_rx->state = HT_AGG_STATE_OPERATIONAL;
+	sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_OPERATIONAL;
 	tid_agg_rx->dialog_token = dialog_token;
 	tid_agg_rx->ssn = start_seq_num;
 	tid_agg_rx->head_seq_num = start_seq_num;
@@ -1171,13 +1320,89 @@ end:
 	spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
 
 end_no_lock:
-	ieee80211_send_addba_resp(sta->dev, sta->addr, tid, dialog_token,
-				status, 1, buf_size, timeout);
-	sta_info_put(sta);
+	ieee80211_send_addba_resp(sta->sdata->dev, sta->addr, tid,
+				  dialog_token, status, 1, buf_size, timeout);
+	rcu_read_unlock();
 }
 
-static void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
-				 u16 initiator, u16 reason_code)
+static void ieee80211_sta_process_addba_resp(struct net_device *dev,
+					     struct ieee80211_mgmt *mgmt,
+					     size_t len)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_hw *hw = &local->hw;
+	struct sta_info *sta;
+	u16 capab;
+	u16 tid;
+	u8 *state;
+
+	rcu_read_lock();
+
+	sta = sta_info_get(local, mgmt->sa);
+	if (!sta) {
+		rcu_read_unlock();
+		return;
+	}
+
+	capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab);
+	tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
+
+	state = &sta->ampdu_mlme.tid_state_tx[tid];
+
+	spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
+
+	if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+		spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+		printk(KERN_DEBUG "state not HT_ADDBA_REQUESTED_MSK:"
+			"%d\n", *state);
+		goto addba_resp_exit;
+	}
+
+	if (mgmt->u.action.u.addba_resp.dialog_token !=
+		sta->ampdu_mlme.tid_tx[tid]->dialog_token) {
+		spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+		printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+		goto addba_resp_exit;
+	}
+
+	del_timer_sync(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "switched off addBA timer for tid %d \n", tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+	if (le16_to_cpu(mgmt->u.action.u.addba_resp.status)
+			== WLAN_STATUS_SUCCESS) {
+		if (*state & HT_ADDBA_RECEIVED_MSK)
+			printk(KERN_DEBUG "double addBA response\n");
+
+		*state |= HT_ADDBA_RECEIVED_MSK;
+		sta->ampdu_mlme.addba_req_num[tid] = 0;
+
+		if (*state == HT_AGG_STATE_OPERATIONAL) {
+			printk(KERN_DEBUG "Aggregation on for tid %d \n", tid);
+			ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+		}
+
+		spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+		printk(KERN_DEBUG "recipient accepted agg: tid %d \n", tid);
+	} else {
+		printk(KERN_DEBUG "recipient rejected agg: tid %d \n", tid);
+
+		sta->ampdu_mlme.addba_req_num[tid]++;
+		/* this will allow the state check in stop_BA_session */
+		*state = HT_AGG_STATE_OPERATIONAL;
+		spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+		ieee80211_stop_tx_ba_session(hw, sta->addr, tid,
+					     WLAN_BACK_INITIATOR);
+	}
+
+addba_resp_exit:
+	rcu_read_unlock();
+}
+
+void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
+			  u16 initiator, u16 reason_code)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
@@ -1227,58 +1452,71 @@ void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *ra, u16 tid,
 	struct ieee80211_hw *hw = &local->hw;
 	struct sta_info *sta;
 	int ret, i;
+	DECLARE_MAC_BUF(mac);
+
+	rcu_read_lock();
 
 	sta = sta_info_get(local, ra);
-	if (!sta)
+	if (!sta) {
+		rcu_read_unlock();
 		return;
+	}
 
 	/* check if TID is in operational state */
 	spin_lock_bh(&sta->ampdu_mlme.ampdu_rx);
-	if (sta->ampdu_mlme.tid_rx[tid].state
+	if (sta->ampdu_mlme.tid_state_rx[tid]
 				!= HT_AGG_STATE_OPERATIONAL) {
 		spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
-		sta_info_put(sta);
+		rcu_read_unlock();
 		return;
 	}
-	sta->ampdu_mlme.tid_rx[tid].state =
+	sta->ampdu_mlme.tid_state_rx[tid] =
 		HT_AGG_STATE_REQ_STOP_BA_MSK |
 		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
-		spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
+	spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
 
 	/* stop HW Rx aggregation. ampdu_action existence
 	 * already verified in session init so we add the BUG_ON */
 	BUG_ON(!local->ops->ampdu_action);
 
+#ifdef CONFIG_MAC80211_HT_DEBUG
+	printk(KERN_DEBUG "Rx BA session stop requested for %s tid %u\n",
+				print_mac(mac, ra), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
 	ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP,
-					ra, tid, EINVAL);
+					ra, tid, NULL);
 	if (ret)
 		printk(KERN_DEBUG "HW problem - can not stop rx "
 				"aggergation for tid %d\n", tid);
 
 	/* shutdown timer has not expired */
 	if (initiator != WLAN_BACK_TIMER)
-		del_timer_sync(&sta->ampdu_mlme.tid_rx[tid].
-					session_timer);
+		del_timer_sync(&sta->ampdu_mlme.tid_rx[tid]->session_timer);
 
 	/* check if this is a self generated aggregation halt */
 	if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER)
 		ieee80211_send_delba(dev, ra, tid, 0, reason);
 
 	/* free the reordering buffer */
-	for (i = 0; i < sta->ampdu_mlme.tid_rx[tid].buf_size; i++) {
-		if (sta->ampdu_mlme.tid_rx[tid].reorder_buf[i]) {
+	for (i = 0; i < sta->ampdu_mlme.tid_rx[tid]->buf_size; i++) {
+		if (sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]) {
 			/* release the reordered frames */
-			dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid].reorder_buf[i]);
-			sta->ampdu_mlme.tid_rx[tid].stored_mpdu_num--;
-			sta->ampdu_mlme.tid_rx[tid].reorder_buf[i] = NULL;
+			dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i]);
+			sta->ampdu_mlme.tid_rx[tid]->stored_mpdu_num--;
+			sta->ampdu_mlme.tid_rx[tid]->reorder_buf[i] = NULL;
 		}
 	}
-	kfree(sta->ampdu_mlme.tid_rx[tid].reorder_buf);
+	/* free resources */
+	kfree(sta->ampdu_mlme.tid_rx[tid]->reorder_buf);
+	kfree(sta->ampdu_mlme.tid_rx[tid]);
+	sta->ampdu_mlme.tid_rx[tid] = NULL;
+	sta->ampdu_mlme.tid_state_rx[tid] = HT_AGG_STATE_IDLE;
 
-	sta->ampdu_mlme.tid_rx[tid].state = HT_AGG_STATE_IDLE;
-	sta_info_put(sta);
+	rcu_read_unlock();
 }
 
+
 static void ieee80211_sta_process_delba(struct net_device *dev,
 			struct ieee80211_mgmt *mgmt, size_t len)
 {
@@ -1288,9 +1526,13 @@ static void ieee80211_sta_process_delba(struct net_device *dev,
 	u16 initiator;
 	DECLARE_MAC_BUF(mac);
 
+	rcu_read_lock();
+
 	sta = sta_info_get(local, mgmt->sa);
-	if (!sta)
+	if (!sta) {
+		rcu_read_unlock();
 		return;
+	}
 
 	params = le16_to_cpu(mgmt->u.action.u.delba.params);
 	tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12;
@@ -1298,27 +1540,87 @@ static void ieee80211_sta_process_delba(struct net_device *dev,
 
 #ifdef CONFIG_MAC80211_HT_DEBUG
 	if (net_ratelimit())
-		printk(KERN_DEBUG "delba from %s on tid %d reason code %d\n",
-			print_mac(mac, mgmt->sa), tid,
+		printk(KERN_DEBUG "delba from %s (%s) tid %d reason code %d\n",
+			print_mac(mac, mgmt->sa),
+			initiator ? "initiator" : "recipient", tid,
 			mgmt->u.action.u.delba.reason_code);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
 	if (initiator == WLAN_BACK_INITIATOR)
 		ieee80211_sta_stop_rx_ba_session(dev, sta->addr, tid,
 						 WLAN_BACK_INITIATOR, 0);
-	sta_info_put(sta);
+	else { /* WLAN_BACK_RECIPIENT */
+		spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
+		sta->ampdu_mlme.tid_state_tx[tid] =
+				HT_AGG_STATE_OPERATIONAL;
+		spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+		ieee80211_stop_tx_ba_session(&local->hw, sta->addr, tid,
+					     WLAN_BACK_RECIPIENT);
+	}
+	rcu_read_unlock();
 }
 
 /*
- * After receiving Block Ack Request (BAR) we activated a
- * timer after each frame arrives from the originator.
+ * After sending add Block Ack request we activated a timer until
+ * add Block Ack response will arrive from the recipient.
+ * If this timer expires sta_addba_resp_timer_expired will be executed.
+ */
+void sta_addba_resp_timer_expired(unsigned long data)
+{
+	/* not an elegant detour, but there is no choice as the timer passes
+	 * only one argument, and both sta_info and TID are needed, so init
+	 * flow in sta_info_create gives the TID as data, while the timer_to_id
+	 * array gives the sta through container_of */
+	u16 tid = *(int *)data;
+	struct sta_info *temp_sta = container_of((void *)data,
+		struct sta_info, timer_to_tid[tid]);
+
+	struct ieee80211_local *local = temp_sta->local;
+	struct ieee80211_hw *hw = &local->hw;
+	struct sta_info *sta;
+	u8 *state;
+
+	rcu_read_lock();
+
+	sta = sta_info_get(local, temp_sta->addr);
+	if (!sta) {
+		rcu_read_unlock();
+		return;
+	}
+
+	state = &sta->ampdu_mlme.tid_state_tx[tid];
+	/* check if the TID waits for addBA response */
+	spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
+	if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
+		spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+		*state = HT_AGG_STATE_IDLE;
+		printk(KERN_DEBUG "timer expired on tid %d but we are not "
+				"expecting addBA response there", tid);
+		goto timer_expired_exit;
+	}
+
+	printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid);
+
+	/* go through the state check in stop_BA_session */
+	*state = HT_AGG_STATE_OPERATIONAL;
+	spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
+	ieee80211_stop_tx_ba_session(hw, temp_sta->addr, tid,
+				     WLAN_BACK_INITIATOR);
+
+timer_expired_exit:
+	rcu_read_unlock();
+}
+
+/*
+ * After accepting the AddBA Request we activated a timer,
+ * resetting it after each frame that arrives from the originator.
  * if this timer expires ieee80211_sta_stop_rx_ba_session will be executed.
  */
 void sta_rx_agg_session_timer_expired(unsigned long data)
 {
 	/* not an elegant detour, but there is no choice as the timer passes
 	 * only one argument, and verious sta_info are needed here, so init
-	 * flow in sta_info_add gives the TID as data, while the timer_to_id
+	 * flow in sta_info_create gives the TID as data, while the timer_to_id
 	 * array gives the sta through container_of */
 	u8 *ptid = (u8 *)data;
 	u8 *timer_to_id = ptid - *ptid;
@@ -1326,11 +1628,24 @@ void sta_rx_agg_session_timer_expired(unsigned long data)
 					 timer_to_tid[0]);
 
 	printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid);
-	ieee80211_sta_stop_rx_ba_session(sta->dev, sta->addr, (u16)*ptid,
-					 WLAN_BACK_TIMER,
+	ieee80211_sta_stop_rx_ba_session(sta->sdata->dev, sta->addr,
+					 (u16)*ptid, WLAN_BACK_TIMER,
 					 WLAN_REASON_QSTA_TIMEOUT);
 }
 
+void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	int i;
+
+	for (i = 0; i <  STA_TID_NUM; i++) {
+		ieee80211_stop_tx_ba_session(&local->hw, addr, i,
+					     WLAN_BACK_INITIATOR);
+		ieee80211_sta_stop_rx_ba_session(dev, addr, i,
+						 WLAN_BACK_RECIPIENT,
+						 WLAN_REASON_QSTA_LEAVE_QBSS);
+	}
+}
 
 static void ieee80211_rx_mgmt_auth(struct net_device *dev,
 				   struct ieee80211_if_sta *ifsta,
@@ -1557,15 +1872,16 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 {
 	struct ieee80211_local *local = sdata->local;
 	struct net_device *dev = sdata->dev;
-	struct ieee80211_hw_mode *mode;
+	struct ieee80211_supported_band *sband;
 	struct sta_info *sta;
-	u32 rates;
+	u64 rates, basic_rates;
 	u16 capab_info, status_code, aid;
 	struct ieee802_11_elems elems;
 	struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
 	u8 *pos;
 	int i, j;
 	DECLARE_MAC_BUF(mac);
+	bool have_higher_than_11mbit = false;
 
 	/* AssocResp and ReassocResp have identical structure, so process both
 	 * of them in this function. */
@@ -1635,22 +1951,23 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	if (ifsta->assocresp_ies)
 		memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len);
 
-	/* set AID, ieee80211_set_associated() will tell the driver */
-	bss_conf->aid = aid;
-	ieee80211_set_associated(dev, ifsta, 1);
+	rcu_read_lock();
 
 	/* Add STA entry for the AP */
 	sta = sta_info_get(local, ifsta->bssid);
 	if (!sta) {
 		struct ieee80211_sta_bss *bss;
-		sta = sta_info_add(local, dev, ifsta->bssid, GFP_KERNEL);
+		int err;
+
+		sta = sta_info_alloc(sdata, ifsta->bssid, GFP_ATOMIC);
 		if (!sta) {
-			printk(KERN_DEBUG "%s: failed to add STA entry for the"
-			       " AP\n", dev->name);
+			printk(KERN_DEBUG "%s: failed to alloc STA entry for"
+			       " the AP\n", dev->name);
+			rcu_read_unlock();
 			return;
 		}
 		bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
-					   local->hw.conf.channel,
+					   local->hw.conf.channel->center_freq,
 					   ifsta->ssid, ifsta->ssid_len);
 		if (bss) {
 			sta->last_rssi = bss->rssi;
@@ -1658,50 +1975,97 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 			sta->last_noise = bss->noise;
 			ieee80211_rx_bss_put(dev, bss);
 		}
+
+		err = sta_info_insert(sta);
+		if (err) {
+			printk(KERN_DEBUG "%s: failed to insert STA entry for"
+			       " the AP (error %d)\n", dev->name, err);
+			rcu_read_unlock();
+			return;
+		}
 	}
 
-	sta->dev = dev;
-	sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP;
+	/*
+	 * FIXME: Do we really need to update the sta_info's information here?
+	 *	  We already know about the AP (we found it in our list) so it
+	 *	  should already be filled with the right info, no?
+	 *	  As is stands, all this is racy because typically we assume
+	 *	  the information that is filled in here (except flags) doesn't
+	 *	  change while a STA structure is alive. As such, it should move
+	 *	  to between the sta_info_alloc() and sta_info_insert() above.
+	 */
+
+	sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP |
+		      WLAN_STA_AUTHORIZED;
 
 	rates = 0;
-	mode = local->oper_hw_mode;
+	basic_rates = 0;
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
 	for (i = 0; i < elems.supp_rates_len; i++) {
 		int rate = (elems.supp_rates[i] & 0x7f) * 5;
-		for (j = 0; j < mode->num_rates; j++)
-			if (mode->rates[j].rate == rate)
+
+		if (rate > 110)
+			have_higher_than_11mbit = true;
+
+		for (j = 0; j < sband->n_bitrates; j++) {
+			if (sband->bitrates[j].bitrate == rate)
 				rates |= BIT(j);
+			if (elems.supp_rates[i] & 0x80)
+				basic_rates |= BIT(j);
+		}
 	}
+
 	for (i = 0; i < elems.ext_supp_rates_len; i++) {
 		int rate = (elems.ext_supp_rates[i] & 0x7f) * 5;
-		for (j = 0; j < mode->num_rates; j++)
-			if (mode->rates[j].rate == rate)
+
+		if (rate > 110)
+			have_higher_than_11mbit = true;
+
+		for (j = 0; j < sband->n_bitrates; j++) {
+			if (sband->bitrates[j].bitrate == rate)
 				rates |= BIT(j);
+			if (elems.ext_supp_rates[i] & 0x80)
+				basic_rates |= BIT(j);
+		}
 	}
-	sta->supp_rates = rates;
 
-	if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
-	    local->ops->conf_ht) {
-		struct ieee80211_ht_bss_info bss_info;
+	sta->supp_rates[local->hw.conf.channel->band] = rates;
+	sdata->basic_rates = basic_rates;
 
+	/* cf. IEEE 802.11 9.2.12 */
+	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
+	    have_higher_than_11mbit)
+		sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
+	else
+		sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
+
+	if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param) {
+		struct ieee80211_ht_bss_info bss_info;
 		ieee80211_ht_cap_ie_to_ht_info(
 				(struct ieee80211_ht_cap *)
 				elems.ht_cap_elem, &sta->ht_info);
 		ieee80211_ht_addt_info_ie_to_ht_bss_info(
 				(struct ieee80211_ht_addt_info *)
 				elems.ht_info_elem, &bss_info);
-		ieee80211_hw_config_ht(local, 1, &sta->ht_info, &bss_info);
+		ieee80211_handle_ht(local, 1, &sta->ht_info, &bss_info);
 	}
 
 	rate_control_rate_init(sta, local);
 
 	if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
 		sta->flags |= WLAN_STA_WME;
+		rcu_read_unlock();
 		ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
 					 elems.wmm_param_len);
-	}
-
+	} else
+		rcu_read_unlock();
 
-	sta_info_put(sta);
+	/* set AID and assoc capability,
+	 * ieee80211_set_associated() will tell the driver */
+	bss_conf->aid = aid;
+	bss_conf->assoc_capability = capab_info;
+	ieee80211_set_associated(dev, ifsta, 1);
 
 	ieee80211_associated(dev, ifsta);
 }
@@ -1712,8 +2076,16 @@ static void __ieee80211_rx_bss_hash_add(struct net_device *dev,
 					struct ieee80211_sta_bss *bss)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	bss->hnext = local->sta_bss_hash[STA_HASH(bss->bssid)];
-	local->sta_bss_hash[STA_HASH(bss->bssid)] = bss;
+	u8 hash_idx;
+
+	if (bss_mesh_cfg(bss))
+		hash_idx = mesh_id_hash(bss_mesh_id(bss),
+					bss_mesh_id_len(bss));
+	else
+		hash_idx = STA_HASH(bss->bssid);
+
+	bss->hnext = local->sta_bss_hash[hash_idx];
+	local->sta_bss_hash[hash_idx] = bss;
 }
 
 
@@ -1740,7 +2112,7 @@ static void __ieee80211_rx_bss_hash_del(struct net_device *dev,
 
 
 static struct ieee80211_sta_bss *
-ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid, int channel,
+ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid, int freq,
 		     u8 *ssid, u8 ssid_len)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
@@ -1752,7 +2124,7 @@ ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid, int channel,
 	atomic_inc(&bss->users);
 	atomic_inc(&bss->users);
 	memcpy(bss->bssid, bssid, ETH_ALEN);
-	bss->channel = channel;
+	bss->freq = freq;
 	if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) {
 		memcpy(bss->ssid, ssid, ssid_len);
 		bss->ssid_len = ssid_len;
@@ -1766,9 +2138,8 @@ ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid, int channel,
 	return bss;
 }
 
-
 static struct ieee80211_sta_bss *
-ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int channel,
+ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq,
 		     u8 *ssid, u8 ssid_len)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
@@ -1777,8 +2148,9 @@ ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int channel,
 	spin_lock_bh(&local->sta_bss_lock);
 	bss = local->sta_bss_hash[STA_HASH(bssid)];
 	while (bss) {
-		if (!memcmp(bss->bssid, bssid, ETH_ALEN) &&
-		    bss->channel == channel &&
+		if (!bss_mesh_cfg(bss) &&
+		    !memcmp(bss->bssid, bssid, ETH_ALEN) &&
+		    bss->freq == freq &&
 		    bss->ssid_len == ssid_len &&
 		    (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) {
 			atomic_inc(&bss->users);
@@ -1790,6 +2162,75 @@ ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int channel,
 	return bss;
 }
 
+#ifdef CONFIG_MAC80211_MESH
+static struct ieee80211_sta_bss *
+ieee80211_rx_mesh_bss_get(struct net_device *dev, u8 *mesh_id, int mesh_id_len,
+			  u8 *mesh_cfg, int freq)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sta_bss *bss;
+
+	spin_lock_bh(&local->sta_bss_lock);
+	bss = local->sta_bss_hash[mesh_id_hash(mesh_id, mesh_id_len)];
+	while (bss) {
+		if (bss_mesh_cfg(bss) &&
+		    !memcmp(bss_mesh_cfg(bss), mesh_cfg, MESH_CFG_CMP_LEN) &&
+		    bss->freq == freq &&
+		    mesh_id_len == bss->mesh_id_len &&
+		    (mesh_id_len == 0 || !memcmp(bss->mesh_id, mesh_id,
+						 mesh_id_len))) {
+			atomic_inc(&bss->users);
+			break;
+		}
+		bss = bss->hnext;
+	}
+	spin_unlock_bh(&local->sta_bss_lock);
+	return bss;
+}
+
+static struct ieee80211_sta_bss *
+ieee80211_rx_mesh_bss_add(struct net_device *dev, u8 *mesh_id, int mesh_id_len,
+			  u8 *mesh_cfg, int mesh_config_len, int freq)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	struct ieee80211_sta_bss *bss;
+
+	if (mesh_config_len != MESH_CFG_LEN)
+		return NULL;
+
+	bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
+	if (!bss)
+		return NULL;
+
+	bss->mesh_cfg = kmalloc(MESH_CFG_CMP_LEN, GFP_ATOMIC);
+	if (!bss->mesh_cfg) {
+		kfree(bss);
+		return NULL;
+	}
+
+	if (mesh_id_len && mesh_id_len <= IEEE80211_MAX_MESH_ID_LEN) {
+		bss->mesh_id = kmalloc(mesh_id_len, GFP_ATOMIC);
+		if (!bss->mesh_id) {
+			kfree(bss->mesh_cfg);
+			kfree(bss);
+			return NULL;
+		}
+		memcpy(bss->mesh_id, mesh_id, mesh_id_len);
+	}
+
+	atomic_inc(&bss->users);
+	atomic_inc(&bss->users);
+	memcpy(bss->mesh_cfg, mesh_cfg, MESH_CFG_CMP_LEN);
+	bss->mesh_id_len = mesh_id_len;
+	bss->freq = freq;
+	spin_lock_bh(&local->sta_bss_lock);
+	/* TODO: order by RSSI? */
+	list_add_tail(&bss->list, &local->sta_bss_list);
+	__ieee80211_rx_bss_hash_add(dev, bss);
+	spin_unlock_bh(&local->sta_bss_lock);
+	return bss;
+}
+#endif
 
 static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
 {
@@ -1797,6 +2238,8 @@ static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
 	kfree(bss->rsn_ie);
 	kfree(bss->wmm_ie);
 	kfree(bss->ht_ie);
+	kfree(bss_mesh_id(bss));
+	kfree(bss_mesh_cfg(bss));
 	kfree(bss);
 }
 
@@ -1834,6 +2277,204 @@ void ieee80211_rx_bss_list_deinit(struct net_device *dev)
 }
 
 
+static int ieee80211_sta_join_ibss(struct net_device *dev,
+				   struct ieee80211_if_sta *ifsta,
+				   struct ieee80211_sta_bss *bss)
+{
+	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+	int res, rates, i, j;
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	struct ieee80211_tx_control control;
+	struct rate_selection ratesel;
+	u8 *pos;
+	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_supported_band *sband;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	/* Remove possible STA entries from other IBSS networks. */
+	sta_info_flush_delayed(sdata);
+
+	if (local->ops->reset_tsf) {
+		/* Reset own TSF to allow time synchronization work. */
+		local->ops->reset_tsf(local_to_hw(local));
+	}
+	memcpy(ifsta->bssid, bss->bssid, ETH_ALEN);
+	res = ieee80211_if_config(dev);
+	if (res)
+		return res;
+
+	local->hw.conf.beacon_int = bss->beacon_int >= 10 ? bss->beacon_int : 10;
+
+	sdata->drop_unencrypted = bss->capability &
+		WLAN_CAPABILITY_PRIVACY ? 1 : 0;
+
+	res = ieee80211_set_freq(local, bss->freq);
+
+	if (local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS) {
+		printk(KERN_DEBUG "%s: IBSS not allowed on frequency "
+		       "%d MHz\n", dev->name, local->oper_channel->center_freq);
+		return -1;
+	}
+
+	/* Set beacon template */
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
+	do {
+		if (!skb)
+			break;
+
+		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 = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+						   IEEE80211_STYPE_BEACON);
+		memset(mgmt->da, 0xff, ETH_ALEN);
+		memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+		mgmt->u.beacon.beacon_int =
+			cpu_to_le16(local->hw.conf.beacon_int);
+		mgmt->u.beacon.capab_info = cpu_to_le16(bss->capability);
+
+		pos = skb_put(skb, 2 + ifsta->ssid_len);
+		*pos++ = WLAN_EID_SSID;
+		*pos++ = ifsta->ssid_len;
+		memcpy(pos, ifsta->ssid, ifsta->ssid_len);
+
+		rates = bss->supp_rates_len;
+		if (rates > 8)
+			rates = 8;
+		pos = skb_put(skb, 2 + rates);
+		*pos++ = WLAN_EID_SUPP_RATES;
+		*pos++ = rates;
+		memcpy(pos, bss->supp_rates, rates);
+
+		if (bss->band == IEEE80211_BAND_2GHZ) {
+			pos = skb_put(skb, 2 + 1);
+			*pos++ = WLAN_EID_DS_PARAMS;
+			*pos++ = 1;
+			*pos++ = ieee80211_frequency_to_channel(bss->freq);
+		}
+
+		pos = skb_put(skb, 2 + 2);
+		*pos++ = WLAN_EID_IBSS_PARAMS;
+		*pos++ = 2;
+		/* FIX: set ATIM window based on scan results */
+		*pos++ = 0;
+		*pos++ = 0;
+
+		if (bss->supp_rates_len > 8) {
+			rates = bss->supp_rates_len - 8;
+			pos = skb_put(skb, 2 + rates);
+			*pos++ = WLAN_EID_EXT_SUPP_RATES;
+			*pos++ = rates;
+			memcpy(pos, &bss->supp_rates[8], rates);
+		}
+
+		memset(&control, 0, sizeof(control));
+		rate_control_get_rate(dev, sband, skb, &ratesel);
+		if (!ratesel.rate) {
+			printk(KERN_DEBUG "%s: Failed to determine TX rate "
+			       "for IBSS beacon\n", dev->name);
+			break;
+		}
+		control.vif = &sdata->vif;
+		control.tx_rate = ratesel.rate;
+		if (sdata->bss_conf.use_short_preamble &&
+		    ratesel.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
+			control.flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
+		control.antenna_sel_tx = local->hw.conf.antenna_sel_tx;
+		control.flags |= IEEE80211_TXCTL_NO_ACK;
+		control.retry_limit = 1;
+
+		ifsta->probe_resp = skb_copy(skb, GFP_ATOMIC);
+		if (ifsta->probe_resp) {
+			mgmt = (struct ieee80211_mgmt *)
+				ifsta->probe_resp->data;
+			mgmt->frame_control =
+				IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+					     IEEE80211_STYPE_PROBE_RESP);
+		} else {
+			printk(KERN_DEBUG "%s: Could not allocate ProbeResp "
+			       "template for IBSS\n", dev->name);
+		}
+
+		if (local->ops->beacon_update &&
+		    local->ops->beacon_update(local_to_hw(local),
+					     skb, &control) == 0) {
+			printk(KERN_DEBUG "%s: Configured IBSS beacon "
+			       "template\n", dev->name);
+			skb = NULL;
+		}
+
+		rates = 0;
+		sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+		for (i = 0; i < bss->supp_rates_len; i++) {
+			int bitrate = (bss->supp_rates[i] & 0x7f) * 5;
+			for (j = 0; j < sband->n_bitrates; j++)
+				if (sband->bitrates[j].bitrate == bitrate)
+					rates |= BIT(j);
+		}
+		ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates;
+
+		ieee80211_sta_def_wmm_params(dev, bss, 1);
+	} while (0);
+
+	if (skb) {
+		printk(KERN_DEBUG "%s: Failed to configure IBSS beacon "
+		       "template\n", dev->name);
+		dev_kfree_skb(skb);
+	}
+
+	ifsta->state = IEEE80211_IBSS_JOINED;
+	mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
+
+	ieee80211_rx_bss_put(dev, bss);
+
+	return res;
+}
+
+u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
+			    struct ieee802_11_elems *elems,
+			    enum ieee80211_band band)
+{
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_rate *bitrates;
+	size_t num_rates;
+	u64 supp_rates;
+	int i, j;
+	sband = local->hw.wiphy->bands[band];
+
+	if (!sband) {
+		WARN_ON(1);
+		sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+	}
+
+	bitrates = sband->bitrates;
+	num_rates = sband->n_bitrates;
+	supp_rates = 0;
+	for (i = 0; i < elems->supp_rates_len +
+		     elems->ext_supp_rates_len; i++) {
+		u8 rate = 0;
+		int own_rate;
+		if (i < elems->supp_rates_len)
+			rate = elems->supp_rates[i];
+		else if (elems->ext_supp_rates)
+			rate = elems->ext_supp_rates
+				[i - elems->supp_rates_len];
+		own_rate = 5 * (rate & 0x7f);
+		for (j = 0; j < num_rates; j++)
+			if (bitrates[j].bitrate == own_rate)
+				supp_rates |= BIT(j);
+	}
+	return supp_rates;
+}
+
+
 static void ieee80211_rx_bss_info(struct net_device *dev,
 				  struct ieee80211_mgmt *mgmt,
 				  size_t len,
@@ -1843,11 +2484,12 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct ieee802_11_elems elems;
 	size_t baselen;
-	int channel, clen;
+	int freq, clen;
 	struct ieee80211_sta_bss *bss;
 	struct sta_info *sta;
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	u64 timestamp;
+	u64 beacon_timestamp, rx_timestamp;
+	struct ieee80211_channel *channel;
 	DECLARE_MAC_BUF(mac);
 	DECLARE_MAC_BUF(mac2);
 
@@ -1864,104 +2506,77 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
 	if (baselen > len)
 		return;
 
-	timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
+	beacon_timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
+	ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
 
-	if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && beacon &&
-	    memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
-		static unsigned long last_tsf_debug = 0;
-		u64 tsf;
-		if (local->ops->get_tsf)
-			tsf = local->ops->get_tsf(local_to_hw(local));
-		else
-			tsf = -1LLU;
-		if (time_after(jiffies, last_tsf_debug + 5 * HZ)) {
-			printk(KERN_DEBUG "RX beacon SA=%s BSSID="
-			       "%s TSF=0x%llx BCN=0x%llx diff=%lld "
-			       "@%lu\n",
-			       print_mac(mac, mgmt->sa), print_mac(mac2, mgmt->bssid),
-			       (unsigned long long)tsf,
-			       (unsigned long long)timestamp,
-			       (unsigned long long)(tsf - timestamp),
-			       jiffies);
-			last_tsf_debug = jiffies;
-		}
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+	if (ieee80211_vif_is_mesh(&sdata->vif) && elems.mesh_id &&
+	    elems.mesh_config && mesh_matches_local(&elems, dev)) {
+		u64 rates = ieee80211_sta_get_rates(local, &elems,
+						rx_status->band);
+
+		mesh_neighbour_update(mgmt->sa, rates, dev,
+				      mesh_peer_accepts_plinks(&elems, dev));
 	}
 
-	ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
+	rcu_read_lock();
 
 	if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
 	    memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
 	    (sta = sta_info_get(local, mgmt->sa))) {
-		struct ieee80211_hw_mode *mode;
-		struct ieee80211_rate *rates;
-		size_t num_rates;
-		u32 supp_rates, prev_rates;
-		int i, j;
-
-		mode = local->sta_sw_scanning ?
-		       local->scan_hw_mode : local->oper_hw_mode;
-
-		if (local->sta_hw_scanning) {
-			/* search for the correct mode matches the beacon */
-			list_for_each_entry(mode, &local->modes_list, list)
-				if (mode->mode == rx_status->phymode)
-					break;
-
-			if (mode == NULL)
-				mode = local->oper_hw_mode;
-		}
-		rates = mode->rates;
-		num_rates = mode->num_rates;
-
-		supp_rates = 0;
-		for (i = 0; i < elems.supp_rates_len +
-			     elems.ext_supp_rates_len; i++) {
-			u8 rate = 0;
-			int own_rate;
-			if (i < elems.supp_rates_len)
-				rate = elems.supp_rates[i];
-			else if (elems.ext_supp_rates)
-				rate = elems.ext_supp_rates
-					[i - elems.supp_rates_len];
-			own_rate = 5 * (rate & 0x7f);
-			for (j = 0; j < num_rates; j++)
-				if (rates[j].rate == own_rate)
-					supp_rates |= BIT(j);
-		}
+		u64 prev_rates;
+		u64 supp_rates = ieee80211_sta_get_rates(local, &elems,
+							rx_status->band);
 
-		prev_rates = sta->supp_rates;
-		sta->supp_rates &= supp_rates;
-		if (sta->supp_rates == 0) {
+		prev_rates = sta->supp_rates[rx_status->band];
+		sta->supp_rates[rx_status->band] &= supp_rates;
+		if (sta->supp_rates[rx_status->band] == 0) {
 			/* No matching rates - this should not really happen.
 			 * Make sure that at least one rate is marked
 			 * supported to avoid issues with TX rate ctrl. */
-			sta->supp_rates = sdata->u.sta.supp_rates_bits;
+			sta->supp_rates[rx_status->band] =
+				sdata->u.sta.supp_rates_bits[rx_status->band];
 		}
-		if (sta->supp_rates != prev_rates) {
+		if (sta->supp_rates[rx_status->band] != prev_rates) {
 			printk(KERN_DEBUG "%s: updated supp_rates set for "
-			       "%s based on beacon info (0x%x & 0x%x -> "
-			       "0x%x)\n",
-			       dev->name, print_mac(mac, sta->addr), prev_rates,
-			       supp_rates, sta->supp_rates);
+			       "%s based on beacon info (0x%llx & 0x%llx -> "
+			       "0x%llx)\n",
+			       dev->name, print_mac(mac, sta->addr),
+			       (unsigned long long) prev_rates,
+			       (unsigned long long) supp_rates,
+			       (unsigned long long) sta->supp_rates[rx_status->band]);
 		}
-		sta_info_put(sta);
 	}
 
-	if (!elems.ssid)
-		return;
+	rcu_read_unlock();
 
 	if (elems.ds_params && elems.ds_params_len == 1)
-		channel = elems.ds_params[0];
+		freq = ieee80211_channel_to_frequency(elems.ds_params[0]);
 	else
-		channel = rx_status->channel;
+		freq = rx_status->freq;
 
-	bss = ieee80211_rx_bss_get(dev, mgmt->bssid, channel,
-				   elems.ssid, elems.ssid_len);
-	if (!bss) {
-		bss = ieee80211_rx_bss_add(dev, mgmt->bssid, channel,
+	channel = ieee80211_get_channel(local->hw.wiphy, freq);
+
+	if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
+		return;
+
+#ifdef CONFIG_MAC80211_MESH
+	if (elems.mesh_config)
+		bss = ieee80211_rx_mesh_bss_get(dev, elems.mesh_id,
+				elems.mesh_id_len, elems.mesh_config, freq);
+	else
+#endif
+		bss = ieee80211_rx_bss_get(dev, mgmt->bssid, freq,
 					   elems.ssid, elems.ssid_len);
+	if (!bss) {
+#ifdef CONFIG_MAC80211_MESH
+		if (elems.mesh_config)
+			bss = ieee80211_rx_mesh_bss_add(dev, elems.mesh_id,
+				elems.mesh_id_len, elems.mesh_config,
+				elems.mesh_config_len, freq);
+		else
+#endif
+			bss = ieee80211_rx_bss_add(dev, mgmt->bssid, freq,
+						   elems.ssid, elems.ssid_len);
 		if (!bss)
 			return;
 	} else {
@@ -1973,18 +2588,29 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
 #endif
 	}
 
-	if (bss->probe_resp && beacon) {
-		/* Do not allow beacon to override data from Probe Response. */
-		ieee80211_rx_bss_put(dev, bss);
-		return;
-	}
-
 	/* save the ERP value so that it is available at association time */
 	if (elems.erp_info && elems.erp_info_len >= 1) {
 		bss->erp_value = elems.erp_info[0];
 		bss->has_erp_value = 1;
 	}
 
+	if (elems.ht_cap_elem &&
+	     (!bss->ht_ie || bss->ht_ie_len != elems.ht_cap_elem_len ||
+	     memcmp(bss->ht_ie, elems.ht_cap_elem, elems.ht_cap_elem_len))) {
+		kfree(bss->ht_ie);
+		bss->ht_ie = kmalloc(elems.ht_cap_elem_len + 2, GFP_ATOMIC);
+		if (bss->ht_ie) {
+			memcpy(bss->ht_ie, elems.ht_cap_elem - 2,
+				elems.ht_cap_elem_len + 2);
+			bss->ht_ie_len = elems.ht_cap_elem_len + 2;
+		} else
+			bss->ht_ie_len = 0;
+	} else if (!elems.ht_cap_elem && bss->ht_ie) {
+		kfree(bss->ht_ie);
+		bss->ht_ie = NULL;
+		bss->ht_ie_len = 0;
+	}
+
 	bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
 	bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
 
@@ -2006,6 +2632,26 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
 		bss->supp_rates_len += clen;
 	}
 
+	bss->band = rx_status->band;
+
+	bss->timestamp = beacon_timestamp;
+	bss->last_update = jiffies;
+	bss->rssi = rx_status->ssi;
+	bss->signal = rx_status->signal;
+	bss->noise = rx_status->noise;
+	if (!beacon && !bss->probe_resp)
+		bss->probe_resp = true;
+
+	/*
+	 * In STA mode, the remaining parameters should not be overridden
+	 * by beacons because they're not necessarily accurate there.
+	 */
+	if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
+	    bss->probe_resp && beacon) {
+		ieee80211_rx_bss_put(dev, bss);
+		return;
+	}
+
 	if (elems.wpa &&
 	    (!bss->wpa_ie || bss->wpa_ie_len != elems.wpa_len ||
 	     memcmp(bss->wpa_ie, elems.wpa, elems.wpa_len))) {
@@ -2038,6 +2684,20 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
 		bss->rsn_ie_len = 0;
 	}
 
+	/*
+	 * Cf.
+	 * http://www.wipo.int/pctdb/en/wo.jsp?wo=2007047181&IA=WO2007047181&DISPLAY=DESC
+	 *
+	 * quoting:
+	 *
+	 * In particular, "Wi-Fi CERTIFIED for WMM - Support for Multimedia
+	 * Applications with Quality of Service in Wi-Fi Networks," Wi- Fi
+	 * Alliance (September 1, 2004) is incorporated by reference herein.
+	 * The inclusion of the WMM Parameters in probe responses and
+	 * association responses is mandatory for WMM enabled networks. The
+	 * inclusion of the WMM Parameters in beacons, however, is optional.
+	 */
+
 	if (elems.wmm_param &&
 	    (!bss->wmm_ie || bss->wmm_ie_len != elems.wmm_param_len ||
 	     memcmp(bss->wmm_ie, elems.wmm_param, elems.wmm_param_len))) {
@@ -2054,44 +2714,62 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
 		bss->wmm_ie = NULL;
 		bss->wmm_ie_len = 0;
 	}
-	if (elems.ht_cap_elem &&
-	    (!bss->ht_ie || bss->ht_ie_len != elems.ht_cap_elem_len ||
-	     memcmp(bss->ht_ie, elems.ht_cap_elem, elems.ht_cap_elem_len))) {
-		kfree(bss->ht_ie);
-		bss->ht_ie = kmalloc(elems.ht_cap_elem_len + 2, GFP_ATOMIC);
-		if (bss->ht_ie) {
-			memcpy(bss->ht_ie, elems.ht_cap_elem - 2,
-			       elems.ht_cap_elem_len + 2);
-			bss->ht_ie_len = elems.ht_cap_elem_len + 2;
-		} else
-			bss->ht_ie_len = 0;
-	} else if (!elems.ht_cap_elem && bss->ht_ie) {
-		kfree(bss->ht_ie);
-		bss->ht_ie = NULL;
-		bss->ht_ie_len = 0;
+
+	/* check if we need to merge IBSS */
+	if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && beacon &&
+	    !local->sta_sw_scanning && !local->sta_hw_scanning &&
+	    bss->capability & WLAN_CAPABILITY_IBSS &&
+	    bss->freq == local->oper_channel->center_freq &&
+	    elems.ssid_len == sdata->u.sta.ssid_len &&
+	    memcmp(elems.ssid, sdata->u.sta.ssid, sdata->u.sta.ssid_len) == 0) {
+		if (rx_status->flag & RX_FLAG_TSFT) {
+			/* in order for correct IBSS merging we need mactime
+			 *
+			 * since mactime is defined as the time the first data
+			 * symbol of the frame hits the PHY, and the timestamp
+			 * of the beacon is defined as "the time that the data
+			 * symbol containing the first bit of the timestamp is
+			 * transmitted to the PHY plus the transmitting STA’s
+			 * delays through its local PHY from the MAC-PHY
+			 * interface to its interface with the WM"
+			 * (802.11 11.1.2) - equals the time this bit arrives at
+			 * the receiver - we have to take into account the
+			 * offset between the two.
+			 * e.g: at 1 MBit that means mactime is 192 usec earlier
+			 * (=24 bytes * 8 usecs/byte) than the beacon timestamp.
+			 */
+			int rate = local->hw.wiphy->bands[rx_status->band]->
+					bitrates[rx_status->rate_idx].bitrate;
+			rx_timestamp = rx_status->mactime + (24 * 8 * 10 / rate);
+		} else if (local && local->ops && local->ops->get_tsf)
+			/* second best option: get current TSF */
+			rx_timestamp = local->ops->get_tsf(local_to_hw(local));
+		else
+			/* can't merge without knowing the TSF */
+			rx_timestamp = -1LLU;
+#ifdef CONFIG_MAC80211_IBSS_DEBUG
+		printk(KERN_DEBUG "RX beacon SA=%s BSSID="
+		       "%s TSF=0x%llx BCN=0x%llx diff=%lld @%lu\n",
+		       print_mac(mac, mgmt->sa),
+		       print_mac(mac2, mgmt->bssid),
+		       (unsigned long long)rx_timestamp,
+		       (unsigned long long)beacon_timestamp,
+		       (unsigned long long)(rx_timestamp - beacon_timestamp),
+		       jiffies);
+#endif /* CONFIG_MAC80211_IBSS_DEBUG */
+		if (beacon_timestamp > rx_timestamp) {
+#ifndef CONFIG_MAC80211_IBSS_DEBUG
+			if (net_ratelimit())
+#endif
+				printk(KERN_DEBUG "%s: beacon TSF higher than "
+				       "local TSF - IBSS merge with BSSID %s\n",
+				       dev->name, print_mac(mac, mgmt->bssid));
+			ieee80211_sta_join_ibss(dev, &sdata->u.sta, bss);
+			ieee80211_ibss_add_sta(dev, NULL,
+					       mgmt->bssid, mgmt->sa);
+		}
 	}
 
-	bss->hw_mode = rx_status->phymode;
-	bss->freq = rx_status->freq;
-	if (channel != rx_status->channel &&
-	    (bss->hw_mode == MODE_IEEE80211G ||
-	     bss->hw_mode == MODE_IEEE80211B) &&
-	    channel >= 1 && channel <= 14) {
-		static const int freq_list[] = {
-			2412, 2417, 2422, 2427, 2432, 2437, 2442,
-			2447, 2452, 2457, 2462, 2467, 2472, 2484
-		};
-		/* IEEE 802.11g/b mode can receive packets from neighboring
-		 * channels, so map the channel into frequency. */
-		bss->freq = freq_list[channel - 1];
-	}
-	bss->timestamp = timestamp;
-	bss->last_update = jiffies;
-	bss->rssi = rx_status->ssi;
-	bss->signal = rx_status->signal;
-	bss->noise = rx_status->noise;
-	if (!beacon)
-		bss->probe_resp++;
 	ieee80211_rx_bss_put(dev, bss);
 }
 
@@ -2136,6 +2814,17 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
 
 	ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
 
+	if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
+		ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
+					 elems.wmm_param_len);
+	}
+
+	/* Do not send changes to driver if we are scanning. This removes
+	 * requirement that driver's bss_info_changed function needs to be
+	 * atomic. */
+	if (local->sta_sw_scanning || local->sta_hw_scanning)
+		return;
+
 	if (elems.erp_info && elems.erp_info_len >= 1)
 		changed |= ieee80211_handle_erp_ie(sdata, elems.erp_info[0]);
 	else {
@@ -2145,25 +2834,14 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
 	}
 
 	if (elems.ht_cap_elem && elems.ht_info_elem &&
-	    elems.wmm_param && local->ops->conf_ht &&
-	    conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
+	    elems.wmm_param && conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
 		struct ieee80211_ht_bss_info bss_info;
 
 		ieee80211_ht_addt_info_ie_to_ht_bss_info(
 				(struct ieee80211_ht_addt_info *)
 				elems.ht_info_elem, &bss_info);
-		/* check if AP changed bss inforamation */
-		if ((conf->ht_bss_conf.primary_channel !=
-		     bss_info.primary_channel) ||
-		    (conf->ht_bss_conf.bss_cap != bss_info.bss_cap) ||
-		    (conf->ht_bss_conf.bss_op_mode != bss_info.bss_op_mode))
-			ieee80211_hw_config_ht(local, 1, &conf->ht_conf,
-						&bss_info);
-	}
-
-	if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
-		ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
-					 elems.wmm_param_len);
+		changed |= ieee80211_handle_ht(local, 1, &conf->ht_conf,
+					       &bss_info);
 	}
 
 	ieee80211_bss_info_change_notify(sdata, changed);
@@ -2247,8 +2925,11 @@ static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
 static void ieee80211_rx_mgmt_action(struct net_device *dev,
 				     struct ieee80211_if_sta *ifsta,
 				     struct ieee80211_mgmt *mgmt,
-				     size_t len)
+				     size_t len,
+				     struct ieee80211_rx_status *rx_status)
 {
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
 	if (len < IEEE80211_MIN_ACTION_SIZE)
 		return;
 
@@ -2261,6 +2942,12 @@ static void ieee80211_rx_mgmt_action(struct net_device *dev,
 				break;
 			ieee80211_sta_process_addba_request(dev, mgmt, len);
 			break;
+		case WLAN_ACTION_ADDBA_RESP:
+			if (len < (IEEE80211_MIN_ACTION_SIZE +
+				   sizeof(mgmt->u.action.u.addba_resp)))
+				break;
+			ieee80211_sta_process_addba_resp(dev, mgmt, len);
+			break;
 		case WLAN_ACTION_DELBA:
 			if (len < (IEEE80211_MIN_ACTION_SIZE +
 				   sizeof(mgmt->u.action.u.delba)))
@@ -2274,7 +2961,18 @@ static void ieee80211_rx_mgmt_action(struct net_device *dev,
 			break;
 		}
 		break;
+	case PLINK_CATEGORY:
+		if (ieee80211_vif_is_mesh(&sdata->vif))
+			mesh_rx_plink_frame(dev, mgmt, len, rx_status);
+		break;
+	case MESH_PATH_SEL_CATEGORY:
+		if (ieee80211_vif_is_mesh(&sdata->vif))
+			mesh_rx_path_sel_frame(dev, mgmt, len);
+		break;
 	default:
+		if (net_ratelimit())
+			printk(KERN_DEBUG "%s: Rx unknown action frame - "
+			"category=%d\n", dev->name, mgmt->u.action.category);
 		break;
 	}
 }
@@ -2301,13 +2999,13 @@ void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
 	case IEEE80211_STYPE_PROBE_REQ:
 	case IEEE80211_STYPE_PROBE_RESP:
 	case IEEE80211_STYPE_BEACON:
+	case IEEE80211_STYPE_ACTION:
 		memcpy(skb->cb, rx_status, sizeof(*rx_status));
 	case IEEE80211_STYPE_AUTH:
 	case IEEE80211_STYPE_ASSOC_RESP:
 	case IEEE80211_STYPE_REASSOC_RESP:
 	case IEEE80211_STYPE_DEAUTH:
 	case IEEE80211_STYPE_DISASSOC:
-	case IEEE80211_STYPE_ACTION:
 		skb_queue_tail(&ifsta->skb_queue, skb);
 		queue_work(local->hw.workqueue, &ifsta->work);
 		return;
@@ -2366,7 +3064,7 @@ static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
 		ieee80211_rx_mgmt_disassoc(dev, ifsta, mgmt, skb->len);
 		break;
 	case IEEE80211_STYPE_ACTION:
-		ieee80211_rx_mgmt_action(dev, ifsta, mgmt, skb->len);
+		ieee80211_rx_mgmt_action(dev, ifsta, mgmt, skb->len, rx_status);
 		break;
 	}
 
@@ -2374,7 +3072,7 @@ static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
 }
 
 
-ieee80211_txrx_result
+ieee80211_rx_result
 ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
 		      struct ieee80211_rx_status *rx_status)
 {
@@ -2382,31 +3080,31 @@ ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
 	u16 fc;
 
 	if (skb->len < 2)
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 
 	mgmt = (struct ieee80211_mgmt *) skb->data;
 	fc = le16_to_cpu(mgmt->frame_control);
 
 	if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL)
-		return TXRX_CONTINUE;
+		return RX_CONTINUE;
 
 	if (skb->len < 24)
-		return TXRX_DROP;
+		return RX_DROP_MONITOR;
 
 	if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
 		if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP) {
 			ieee80211_rx_mgmt_probe_resp(dev, mgmt,
 						     skb->len, rx_status);
 			dev_kfree_skb(skb);
-			return TXRX_QUEUED;
+			return RX_QUEUED;
 		} else if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) {
 			ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len,
 						 rx_status);
 			dev_kfree_skb(skb);
-			return TXRX_QUEUED;
+			return RX_QUEUED;
 		}
 	}
-	return TXRX_CONTINUE;
+	return RX_CONTINUE;
 }
 
 
@@ -2415,45 +3113,46 @@ static int ieee80211_sta_active_ibss(struct net_device *dev)
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	int active = 0;
 	struct sta_info *sta;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+	rcu_read_lock();
 
-	read_lock_bh(&local->sta_lock);
-	list_for_each_entry(sta, &local->sta_list, list) {
-		if (sta->dev == dev &&
+	list_for_each_entry_rcu(sta, &local->sta_list, list) {
+		if (sta->sdata == sdata &&
 		    time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
 			       jiffies)) {
 			active++;
 			break;
 		}
 	}
-	read_unlock_bh(&local->sta_lock);
+
+	rcu_read_unlock();
 
 	return active;
 }
 
 
-static void ieee80211_sta_expire(struct net_device *dev)
+static void ieee80211_sta_expire(struct net_device *dev, unsigned long exp_time)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct sta_info *sta, *tmp;
 	LIST_HEAD(tmp_list);
 	DECLARE_MAC_BUF(mac);
+	unsigned long flags;
 
-	write_lock_bh(&local->sta_lock);
+	spin_lock_irqsave(&local->sta_lock, flags);
 	list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
-		if (time_after(jiffies, sta->last_rx +
-			       IEEE80211_IBSS_INACTIVITY_LIMIT)) {
+		if (time_after(jiffies, sta->last_rx + exp_time)) {
 			printk(KERN_DEBUG "%s: expiring inactive STA %s\n",
 			       dev->name, print_mac(mac, sta->addr));
-			__sta_info_get(sta);
-			sta_info_remove(sta);
-			list_add(&sta->list, &tmp_list);
+			__sta_info_unlink(&sta);
+			if (sta)
+				list_add(&sta->list, &tmp_list);
 		}
-	write_unlock_bh(&local->sta_lock);
+	spin_unlock_irqrestore(&local->sta_lock, flags);
 
-	list_for_each_entry_safe(sta, tmp, &tmp_list, list) {
-		sta_info_free(sta);
-		sta_info_put(sta);
-	}
+	list_for_each_entry_safe(sta, tmp, &tmp_list, list)
+		sta_info_destroy(sta);
 }
 
 
@@ -2462,7 +3161,7 @@ static void ieee80211_sta_merge_ibss(struct net_device *dev,
 {
 	mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
 
-	ieee80211_sta_expire(dev);
+	ieee80211_sta_expire(dev, IEEE80211_IBSS_INACTIVITY_LIMIT);
 	if (ieee80211_sta_active_ibss(dev))
 		return;
 
@@ -2472,6 +3171,36 @@ static void ieee80211_sta_merge_ibss(struct net_device *dev,
 }
 
 
+#ifdef CONFIG_MAC80211_MESH
+static void ieee80211_mesh_housekeeping(struct net_device *dev,
+			   struct ieee80211_if_sta *ifsta)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	bool free_plinks;
+
+	ieee80211_sta_expire(dev, IEEE80211_MESH_PEER_INACTIVITY_LIMIT);
+	mesh_path_expire(dev);
+
+	free_plinks = mesh_plink_availables(sdata);
+	if (free_plinks != sdata->u.sta.accepting_plinks)
+		ieee80211_if_config_beacon(dev);
+
+	mod_timer(&ifsta->timer, jiffies +
+			IEEE80211_MESH_HOUSEKEEPING_INTERVAL);
+}
+
+
+void ieee80211_start_mesh(struct net_device *dev)
+{
+	struct ieee80211_if_sta *ifsta;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	ifsta = &sdata->u.sta;
+	ifsta->state = IEEE80211_MESH_UP;
+	ieee80211_sta_timer((unsigned long)sdata);
+}
+#endif
+
+
 void ieee80211_sta_timer(unsigned long data)
 {
 	struct ieee80211_sub_if_data *sdata =
@@ -2483,7 +3212,6 @@ void ieee80211_sta_timer(unsigned long data)
 	queue_work(local->hw.workqueue, &ifsta->work);
 }
 
-
 void ieee80211_sta_work(struct work_struct *work)
 {
 	struct ieee80211_sub_if_data *sdata =
@@ -2500,7 +3228,8 @@ void ieee80211_sta_work(struct work_struct *work)
 		return;
 
 	if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
-	    sdata->vif.type != IEEE80211_IF_TYPE_IBSS) {
+	    sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
+	    sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT) {
 		printk(KERN_DEBUG "%s: ieee80211_sta_work: non-STA interface "
 		       "(type=%d)\n", dev->name, sdata->vif.type);
 		return;
@@ -2510,6 +3239,13 @@ void ieee80211_sta_work(struct work_struct *work)
 	while ((skb = skb_dequeue(&ifsta->skb_queue)))
 		ieee80211_sta_rx_queued_mgmt(dev, skb);
 
+#ifdef CONFIG_MAC80211_MESH
+	if (ifsta->preq_queue_len &&
+	    time_after(jiffies,
+		       ifsta->last_preq + msecs_to_jiffies(ifsta->mshcfg.dot11MeshHWMPpreqMinInterval)))
+		mesh_path_start_discovery(dev);
+#endif
+
 	if (ifsta->state != IEEE80211_AUTHENTICATE &&
 	    ifsta->state != IEEE80211_ASSOCIATE &&
 	    test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
@@ -2545,6 +3281,11 @@ void ieee80211_sta_work(struct work_struct *work)
 	case IEEE80211_IBSS_JOINED:
 		ieee80211_sta_merge_ibss(dev, ifsta);
 		break;
+#ifdef CONFIG_MAC80211_MESH
+	case IEEE80211_MESH_UP:
+		ieee80211_mesh_housekeeping(dev, ifsta);
+		break;
+#endif
 	default:
 		printk(KERN_DEBUG "ieee80211_sta_work: Unknown state %d\n",
 		       ifsta->state);
@@ -2655,7 +3396,7 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
 	}
 
 	spin_lock_bh(&local->sta_bss_lock);
-	freq = local->oper_channel->freq;
+	freq = local->oper_channel->center_freq;
 	list_for_each_entry(bss, &local->sta_bss_list, list) {
 		if (!(bss->capability & WLAN_CAPABILITY_ESS))
 			continue;
@@ -2686,11 +3427,12 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
 	spin_unlock_bh(&local->sta_bss_lock);
 
 	if (selected) {
-		ieee80211_set_channel(local, -1, selected->freq);
+		ieee80211_set_freq(local, selected->freq);
 		if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
 			ieee80211_sta_set_ssid(dev, selected->ssid,
 					       selected->ssid_len);
 		ieee80211_sta_set_bssid(dev, selected->bssid);
+		ieee80211_sta_def_wmm_params(dev, selected, 0);
 		ieee80211_rx_bss_put(dev, selected);
 		ifsta->state = IEEE80211_AUTHENTICATE;
 		ieee80211_sta_reset_auth(dev, ifsta);
@@ -2710,162 +3452,6 @@ static int ieee80211_sta_config_auth(struct net_device *dev,
 	return -1;
 }
 
-static int ieee80211_sta_join_ibss(struct net_device *dev,
-				   struct ieee80211_if_sta *ifsta,
-				   struct ieee80211_sta_bss *bss)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	int res, rates, i, j;
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
-	struct ieee80211_tx_control control;
-	struct ieee80211_hw_mode *mode;
-	struct rate_selection ratesel;
-	u8 *pos;
-	struct ieee80211_sub_if_data *sdata;
-
-	/* Remove possible STA entries from other IBSS networks. */
-	sta_info_flush(local, NULL);
-
-	if (local->ops->reset_tsf) {
-		/* Reset own TSF to allow time synchronization work. */
-		local->ops->reset_tsf(local_to_hw(local));
-	}
-	memcpy(ifsta->bssid, bss->bssid, ETH_ALEN);
-	res = ieee80211_if_config(dev);
-	if (res)
-		return res;
-
-	local->hw.conf.beacon_int = bss->beacon_int >= 10 ? bss->beacon_int : 10;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	sdata->drop_unencrypted = bss->capability &
-		WLAN_CAPABILITY_PRIVACY ? 1 : 0;
-
-	res = ieee80211_set_channel(local, -1, bss->freq);
-
-	if (!(local->oper_channel->flag & IEEE80211_CHAN_W_IBSS)) {
-		printk(KERN_DEBUG "%s: IBSS not allowed on channel %d "
-		       "(%d MHz)\n", dev->name, local->hw.conf.channel,
-		       local->hw.conf.freq);
-		return -1;
-	}
-
-	/* Set beacon template based on scan results */
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
-	do {
-		if (!skb)
-			break;
-
-		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 = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
-						   IEEE80211_STYPE_BEACON);
-		memset(mgmt->da, 0xff, ETH_ALEN);
-		memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
-		memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-		mgmt->u.beacon.beacon_int =
-			cpu_to_le16(local->hw.conf.beacon_int);
-		mgmt->u.beacon.capab_info = cpu_to_le16(bss->capability);
-
-		pos = skb_put(skb, 2 + ifsta->ssid_len);
-		*pos++ = WLAN_EID_SSID;
-		*pos++ = ifsta->ssid_len;
-		memcpy(pos, ifsta->ssid, ifsta->ssid_len);
-
-		rates = bss->supp_rates_len;
-		if (rates > 8)
-			rates = 8;
-		pos = skb_put(skb, 2 + rates);
-		*pos++ = WLAN_EID_SUPP_RATES;
-		*pos++ = rates;
-		memcpy(pos, bss->supp_rates, rates);
-
-		pos = skb_put(skb, 2 + 1);
-		*pos++ = WLAN_EID_DS_PARAMS;
-		*pos++ = 1;
-		*pos++ = bss->channel;
-
-		pos = skb_put(skb, 2 + 2);
-		*pos++ = WLAN_EID_IBSS_PARAMS;
-		*pos++ = 2;
-		/* FIX: set ATIM window based on scan results */
-		*pos++ = 0;
-		*pos++ = 0;
-
-		if (bss->supp_rates_len > 8) {
-			rates = bss->supp_rates_len - 8;
-			pos = skb_put(skb, 2 + rates);
-			*pos++ = WLAN_EID_EXT_SUPP_RATES;
-			*pos++ = rates;
-			memcpy(pos, &bss->supp_rates[8], rates);
-		}
-
-		memset(&control, 0, sizeof(control));
-		rate_control_get_rate(dev, local->oper_hw_mode, skb, &ratesel);
-		if (!ratesel.rate) {
-			printk(KERN_DEBUG "%s: Failed to determine TX rate "
-			       "for IBSS beacon\n", dev->name);
-			break;
-		}
-		control.vif = &sdata->vif;
-		control.tx_rate =
-			(sdata->bss_conf.use_short_preamble &&
-			(ratesel.rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
-			ratesel.rate->val2 : ratesel.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;
-
-		ifsta->probe_resp = skb_copy(skb, GFP_ATOMIC);
-		if (ifsta->probe_resp) {
-			mgmt = (struct ieee80211_mgmt *)
-				ifsta->probe_resp->data;
-			mgmt->frame_control =
-				IEEE80211_FC(IEEE80211_FTYPE_MGMT,
-					     IEEE80211_STYPE_PROBE_RESP);
-		} else {
-			printk(KERN_DEBUG "%s: Could not allocate ProbeResp "
-			       "template for IBSS\n", dev->name);
-		}
-
-		if (local->ops->beacon_update &&
-		    local->ops->beacon_update(local_to_hw(local),
-					     skb, &control) == 0) {
-			printk(KERN_DEBUG "%s: Configured IBSS beacon "
-			       "template based on scan results\n", dev->name);
-			skb = NULL;
-		}
-
-		rates = 0;
-		mode = local->oper_hw_mode;
-		for (i = 0; i < bss->supp_rates_len; i++) {
-			int bitrate = (bss->supp_rates[i] & 0x7f) * 5;
-			for (j = 0; j < mode->num_rates; j++)
-				if (mode->rates[j].rate == bitrate)
-					rates |= BIT(j);
-		}
-		ifsta->supp_rates_bits = rates;
-	} while (0);
-
-	if (skb) {
-		printk(KERN_DEBUG "%s: Failed to configure IBSS beacon "
-		       "template\n", dev->name);
-		dev_kfree_skb(skb);
-	}
-
-	ifsta->state = IEEE80211_IBSS_JOINED;
-	mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
-
-	ieee80211_rx_bss_put(dev, bss);
-
-	return res;
-}
-
 
 static int ieee80211_sta_create_ibss(struct net_device *dev,
 				     struct ieee80211_if_sta *ifsta)
@@ -2873,7 +3459,7 @@ static int ieee80211_sta_create_ibss(struct net_device *dev,
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct ieee80211_sta_bss *bss;
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct ieee80211_hw_mode *mode;
+	struct ieee80211_supported_band *sband;
 	u8 bssid[ETH_ALEN], *pos;
 	int i;
 	DECLARE_MAC_BUF(mac);
@@ -2895,28 +3481,28 @@ static int ieee80211_sta_create_ibss(struct net_device *dev,
 	printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %s\n",
 	       dev->name, print_mac(mac, bssid));
 
-	bss = ieee80211_rx_bss_add(dev, bssid, local->hw.conf.channel,
+	bss = ieee80211_rx_bss_add(dev, bssid,
+				   local->hw.conf.channel->center_freq,
 				   sdata->u.sta.ssid, sdata->u.sta.ssid_len);
 	if (!bss)
 		return -ENOMEM;
 
-	mode = local->oper_hw_mode;
+	bss->band = local->hw.conf.channel->band;
+	sband = local->hw.wiphy->bands[bss->band];
 
 	if (local->hw.conf.beacon_int == 0)
-		local->hw.conf.beacon_int = 100;
+		local->hw.conf.beacon_int = 10000;
 	bss->beacon_int = local->hw.conf.beacon_int;
-	bss->hw_mode = local->hw.conf.phymode;
-	bss->freq = local->hw.conf.freq;
 	bss->last_update = jiffies;
 	bss->capability = WLAN_CAPABILITY_IBSS;
 	if (sdata->default_key) {
 		bss->capability |= WLAN_CAPABILITY_PRIVACY;
 	} else
 		sdata->drop_unencrypted = 0;
-	bss->supp_rates_len = mode->num_rates;
+	bss->supp_rates_len = sband->n_bitrates;
 	pos = bss->supp_rates;
-	for (i = 0; i < mode->num_rates; i++) {
-		int rate = mode->rates[i].rate;
+	for (i = 0; i < sband->n_bitrates; i++) {
+		int rate = sband->bitrates[i].bitrate;
 		*pos++ = (u8) (rate / 5);
 	}
 
@@ -2965,7 +3551,8 @@ static int ieee80211_sta_find_ibss(struct net_device *dev,
 	       "%s\n", print_mac(mac, bssid), print_mac(mac2, ifsta->bssid));
 #endif /* CONFIG_MAC80211_IBSS_DEBUG */
 	if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0 &&
-	    (bss = ieee80211_rx_bss_get(dev, bssid, local->hw.conf.channel,
+	    (bss = ieee80211_rx_bss_get(dev, bssid,
+					local->hw.conf.channel->center_freq,
 					ifsta->ssid, ifsta->ssid_len))) {
 		printk(KERN_DEBUG "%s: Selected IBSS BSSID %s"
 		       " based on configured SSID\n",
@@ -2993,13 +3580,13 @@ static int ieee80211_sta_find_ibss(struct net_device *dev,
 		if (time_after(jiffies, ifsta->ibss_join_req +
 			       IEEE80211_IBSS_JOIN_TIMEOUT)) {
 			if ((ifsta->flags & IEEE80211_STA_CREATE_IBSS) &&
-			    local->oper_channel->flag & IEEE80211_CHAN_W_IBSS)
+			    (!(local->oper_channel->flags &
+					IEEE80211_CHAN_NO_IBSS)))
 				return ieee80211_sta_create_ibss(dev, ifsta);
 			if (ifsta->flags & IEEE80211_STA_CREATE_IBSS) {
-				printk(KERN_DEBUG "%s: IBSS not allowed on the"
-				       " configured channel %d (%d MHz)\n",
-				       dev->name, local->hw.conf.channel,
-				       local->hw.conf.freq);
+				printk(KERN_DEBUG "%s: IBSS not allowed on"
+				       " %d MHz\n", dev->name,
+				       local->hw.conf.channel->center_freq);
 			}
 
 			/* No IBSS found - decrease scan interval and continue
@@ -3018,41 +3605,12 @@ static int ieee80211_sta_find_ibss(struct net_device *dev,
 
 int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_if_sta *ifsta;
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 
 	if (len > IEEE80211_MAX_SSID_LEN)
 		return -EINVAL;
 
-	/* TODO: This should always be done for IBSS, even if IEEE80211_QOS is
-	 * not defined. */
-	if (local->ops->conf_tx) {
-		struct ieee80211_tx_queue_params qparam;
-		int i;
-
-		memset(&qparam, 0, sizeof(qparam));
-		/* TODO: are these ok defaults for all hw_modes? */
-		qparam.aifs = 2;
-		qparam.cw_min =
-			local->hw.conf.phymode == MODE_IEEE80211B ? 31 : 15;
-		qparam.cw_max = 1023;
-		qparam.burst_time = 0;
-		for (i = IEEE80211_TX_QUEUE_DATA0; i < NUM_TX_DATA_QUEUES; i++)
-		{
-			local->ops->conf_tx(local_to_hw(local),
-					   i + IEEE80211_TX_QUEUE_DATA0,
-					   &qparam);
-		}
-		/* IBSS uses different parameters for Beacon sending */
-		qparam.cw_min++;
-		qparam.cw_min *= 2;
-		qparam.cw_min--;
-		local->ops->conf_tx(local_to_hw(local),
-				   IEEE80211_TX_QUEUE_BEACON, &qparam);
-	}
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	ifsta = &sdata->u.sta;
 
 	if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0)
@@ -3144,6 +3702,13 @@ static void ieee80211_send_nullfunc(struct ieee80211_local *local,
 }
 
 
+static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
+{
+	if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+	    ieee80211_vif_is_mesh(&sdata->vif))
+		ieee80211_sta_timer((unsigned long)sdata);
+}
+
 void ieee80211_scan_completed(struct ieee80211_hw *hw)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
@@ -3157,6 +3722,15 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
 
 	if (local->sta_hw_scanning) {
 		local->sta_hw_scanning = 0;
+		if (ieee80211_hw_config(local))
+			printk(KERN_DEBUG "%s: failed to restore operational "
+			       "channel after scan\n", dev->name);
+		/* Restart STA timer for HW scan case */
+		rcu_read_lock();
+		list_for_each_entry_rcu(sdata, &local->interfaces, list)
+			ieee80211_restart_sta_timer(sdata);
+		rcu_read_unlock();
+
 		goto done;
 	}
 
@@ -3183,11 +3757,12 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
 		if (sdata->dev == local->mdev)
 			continue;
 
-		if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
-			if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
-				ieee80211_send_nullfunc(local, sdata, 0);
-			ieee80211_sta_timer((unsigned long)sdata);
-		}
+		/* Tell AP we're back */
+		if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
+		    sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
+			ieee80211_send_nullfunc(local, sdata, 0);
+
+		ieee80211_restart_sta_timer(sdata);
 
 		netif_wake_queue(sdata->dev);
 	}
@@ -3211,7 +3786,7 @@ void ieee80211_sta_scan_work(struct work_struct *work)
 		container_of(work, struct ieee80211_local, scan_work.work);
 	struct net_device *dev = local->scan_dev;
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct ieee80211_hw_mode *mode;
+	struct ieee80211_supported_band *sband;
 	struct ieee80211_channel *chan;
 	int skip;
 	unsigned long next_delay = 0;
@@ -3221,44 +3796,59 @@ void ieee80211_sta_scan_work(struct work_struct *work)
 
 	switch (local->scan_state) {
 	case SCAN_SET_CHANNEL:
-		mode = local->scan_hw_mode;
-		if (local->scan_hw_mode->list.next == &local->modes_list &&
-		    local->scan_channel_idx >= mode->num_channels) {
+		/*
+		 * Get current scan band. scan_band may be IEEE80211_NUM_BANDS
+		 * after we successfully scanned the last channel of the last
+		 * band (and the last band is supported by the hw)
+		 */
+		if (local->scan_band < IEEE80211_NUM_BANDS)
+			sband = local->hw.wiphy->bands[local->scan_band];
+		else
+			sband = NULL;
+
+		/*
+		 * If we are at an unsupported band and have more bands
+		 * left to scan, advance to the next supported one.
+		 */
+		while (!sband && local->scan_band < IEEE80211_NUM_BANDS - 1) {
+			local->scan_band++;
+			sband = local->hw.wiphy->bands[local->scan_band];
+			local->scan_channel_idx = 0;
+		}
+
+		/* if no more bands/channels left, complete scan */
+		if (!sband || local->scan_channel_idx >= sband->n_channels) {
 			ieee80211_scan_completed(local_to_hw(local));
 			return;
 		}
-		skip = !(local->enabled_modes & (1 << mode->mode));
-		chan = &mode->channels[local->scan_channel_idx];
-		if (!(chan->flag & IEEE80211_CHAN_W_SCAN) ||
+		skip = 0;
+		chan = &sband->channels[local->scan_channel_idx];
+
+		if (chan->flags & IEEE80211_CHAN_DISABLED ||
 		    (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
-		     !(chan->flag & IEEE80211_CHAN_W_IBSS)) ||
-		    (local->hw_modes & local->enabled_modes &
-		     (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
+		     chan->flags & IEEE80211_CHAN_NO_IBSS))
 			skip = 1;
 
 		if (!skip) {
-#if 0
-			printk(KERN_DEBUG "%s: scan channel %d (%d MHz)\n",
-			       dev->name, chan->chan, chan->freq);
-#endif
-
 			local->scan_channel = chan;
 			if (ieee80211_hw_config(local)) {
-				printk(KERN_DEBUG "%s: failed to set channel "
-				       "%d (%d MHz) for scan\n", dev->name,
-				       chan->chan, chan->freq);
+				printk(KERN_DEBUG "%s: failed to set freq to "
+				       "%d MHz for scan\n", dev->name,
+				       chan->center_freq);
 				skip = 1;
 			}
 		}
 
+		/* advance state machine to next channel/band */
 		local->scan_channel_idx++;
-		if (local->scan_channel_idx >= local->scan_hw_mode->num_channels) {
-			if (local->scan_hw_mode->list.next != &local->modes_list) {
-				local->scan_hw_mode = list_entry(local->scan_hw_mode->list.next,
-								 struct ieee80211_hw_mode,
-								 list);
-				local->scan_channel_idx = 0;
-			}
+		if (local->scan_channel_idx >= sband->n_channels) {
+			/*
+			 * scan_band may end up == IEEE80211_NUM_BANDS, but
+			 * we'll catch that case above and complete the scan
+			 * if that is the case.
+			 */
+			local->scan_band++;
+			local->scan_channel_idx = 0;
 		}
 
 		if (skip)
@@ -3269,13 +3859,14 @@ void ieee80211_sta_scan_work(struct work_struct *work)
 		local->scan_state = SCAN_SEND_PROBE;
 		break;
 	case SCAN_SEND_PROBE:
-		if (local->scan_channel->flag & IEEE80211_CHAN_W_ACTIVE_SCAN) {
-			ieee80211_send_probe_req(dev, NULL, local->scan_ssid,
-						 local->scan_ssid_len);
-			next_delay = IEEE80211_CHANNEL_TIME;
-		} else
-			next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
+		next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
 		local->scan_state = SCAN_SET_CHANNEL;
+
+		if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN)
+			break;
+		ieee80211_send_probe_req(dev, NULL, local->scan_ssid,
+					 local->scan_ssid_len);
+		next_delay = IEEE80211_CHANNEL_TIME;
 		break;
 	}
 
@@ -3350,10 +3941,8 @@ static int ieee80211_sta_start_scan(struct net_device *dev,
 	} else
 		local->scan_ssid_len = 0;
 	local->scan_state = SCAN_SET_CHANNEL;
-	local->scan_hw_mode = list_entry(local->modes_list.next,
-					 struct ieee80211_hw_mode,
-					 list);
 	local->scan_channel_idx = 0;
+	local->scan_band = IEEE80211_BAND_2GHZ;
 	local->scan_dev = dev;
 
 	netif_tx_lock_bh(local->mdev);
@@ -3408,9 +3997,6 @@ ieee80211_sta_scan_result(struct net_device *dev,
 		       bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE))
 		return current_ev;
 
-	if (!(local->enabled_modes & (1 << bss->hw_mode)))
-		return current_ev;
-
 	memset(&iwe, 0, sizeof(iwe));
 	iwe.cmd = SIOCGIWAP;
 	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
@@ -3420,15 +4006,25 @@ ieee80211_sta_scan_result(struct net_device *dev,
 
 	memset(&iwe, 0, sizeof(iwe));
 	iwe.cmd = SIOCGIWESSID;
-	iwe.u.data.length = bss->ssid_len;
-	iwe.u.data.flags = 1;
-	current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
-					  bss->ssid);
+	if (bss_mesh_cfg(bss)) {
+		iwe.u.data.length = bss_mesh_id_len(bss);
+		iwe.u.data.flags = 1;
+		current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+						  bss_mesh_id(bss));
+	} else {
+		iwe.u.data.length = bss->ssid_len;
+		iwe.u.data.flags = 1;
+		current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
+						  bss->ssid);
+	}
 
-	if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
+	if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)
+	    || bss_mesh_cfg(bss)) {
 		memset(&iwe, 0, sizeof(iwe));
 		iwe.cmd = SIOCGIWMODE;
-		if (bss->capability & WLAN_CAPABILITY_ESS)
+		if (bss_mesh_cfg(bss))
+			iwe.u.mode = IW_MODE_MESH;
+		else if (bss->capability & WLAN_CAPABILITY_ESS)
 			iwe.u.mode = IW_MODE_MASTER;
 		else
 			iwe.u.mode = IW_MODE_ADHOC;
@@ -3438,12 +4034,15 @@ ieee80211_sta_scan_result(struct net_device *dev,
 
 	memset(&iwe, 0, sizeof(iwe));
 	iwe.cmd = SIOCGIWFREQ;
-	iwe.u.freq.m = bss->channel;
-	iwe.u.freq.e = 0;
+	iwe.u.freq.m = bss->freq;
+	iwe.u.freq.e = 6;
 	current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
 					  IW_EV_FREQ_LEN);
-	iwe.u.freq.m = bss->freq * 100000;
-	iwe.u.freq.e = 1;
+
+	memset(&iwe, 0, sizeof(iwe));
+	iwe.cmd = SIOCGIWFREQ;
+	iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq);
+	iwe.u.freq.e = 0;
 	current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
 					  IW_EV_FREQ_LEN);
 
@@ -3514,6 +4113,45 @@ ieee80211_sta_scan_result(struct net_device *dev,
 		}
 	}
 
+	if (bss_mesh_cfg(bss)) {
+		char *buf;
+		u8 *cfg = bss_mesh_cfg(bss);
+		buf = kmalloc(50, GFP_ATOMIC);
+		if (buf) {
+			memset(&iwe, 0, sizeof(iwe));
+			iwe.cmd = IWEVCUSTOM;
+			sprintf(buf, "Mesh network (version %d)", cfg[0]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(current_ev, end_buf,
+							  &iwe, buf);
+			sprintf(buf, "Path Selection Protocol ID: "
+				"0x%02X%02X%02X%02X", cfg[1], cfg[2], cfg[3],
+							cfg[4]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(current_ev, end_buf,
+							  &iwe, buf);
+			sprintf(buf, "Path Selection Metric ID: "
+				"0x%02X%02X%02X%02X", cfg[5], cfg[6], cfg[7],
+							cfg[8]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(current_ev, end_buf,
+							  &iwe, buf);
+			sprintf(buf, "Congestion Control Mode ID: "
+				"0x%02X%02X%02X%02X", cfg[9], cfg[10],
+							cfg[11], cfg[12]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(current_ev, end_buf,
+							  &iwe, buf);
+			sprintf(buf, "Channel Precedence: "
+				"0x%02X%02X%02X%02X", cfg[13], cfg[14],
+							cfg[15], cfg[16]);
+			iwe.u.data.length = strlen(buf);
+			current_ev = iwe_stream_add_point(current_ev, end_buf,
+							  &iwe, buf);
+			kfree(buf);
+		}
+	}
+
 	return current_ev;
 }
 
@@ -3582,15 +4220,21 @@ struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
 	printk(KERN_DEBUG "%s: Adding new IBSS station %s (dev=%s)\n",
 	       wiphy_name(local->hw.wiphy), print_mac(mac, addr), dev->name);
 
-	sta = sta_info_add(local, dev, addr, GFP_ATOMIC);
+	sta = sta_info_alloc(sdata, addr, GFP_ATOMIC);
 	if (!sta)
 		return NULL;
 
-	sta->supp_rates = sdata->u.sta.supp_rates_bits;
+	sta->flags |= WLAN_STA_AUTHORIZED;
+
+	sta->supp_rates[local->hw.conf.channel->band] =
+		sdata->u.sta.supp_rates_bits[local->hw.conf.channel->band];
 
 	rate_control_rate_init(sta, local);
 
-	return sta; /* caller will call sta_info_put() */
+	if (sta_info_insert(sta))
+		return NULL;
+
+	return sta;
 }
 
 
@@ -3630,3 +4274,26 @@ int ieee80211_sta_disassociate(struct net_device *dev, u16 reason)
 	ieee80211_set_disassoc(dev, ifsta, 0);
 	return 0;
 }
+
+void ieee80211_notify_mac(struct ieee80211_hw *hw,
+			  enum ieee80211_notification_types  notif_type)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	struct ieee80211_sub_if_data *sdata;
+
+	switch (notif_type) {
+	case IEEE80211_NOTIFY_RE_ASSOC:
+		rcu_read_lock();
+		list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+
+			if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
+				ieee80211_sta_req_auth(sdata->dev,
+						       &sdata->u.sta);
+			}
+
+		}
+		rcu_read_unlock();
+		break;
+	}
+}
+EXPORT_SYMBOL(ieee80211_notify_mac);
diff --git a/net/mac80211/ieee80211_rate.c b/net/mac80211/rate.c
index b957e67c5fba..841df93807fc 100644
--- a/net/mac80211/ieee80211_rate.c
+++ b/net/mac80211/rate.c
@@ -10,7 +10,7 @@
 
 #include <linux/kernel.h>
 #include <linux/rtnetlink.h>
-#include "ieee80211_rate.h"
+#include "rate.h"
 #include "ieee80211_i.h"
 
 struct rate_control_alg {
@@ -163,34 +163,37 @@ static void rate_control_release(struct kref *kref)
 }
 
 void rate_control_get_rate(struct net_device *dev,
-			   struct ieee80211_hw_mode *mode, struct sk_buff *skb,
+			   struct ieee80211_supported_band *sband,
+			   struct sk_buff *skb,
 			   struct rate_selection *sel)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct rate_control_ref *ref = local->rate_ctrl;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	struct sta_info *sta = sta_info_get(local, hdr->addr1);
+	struct sta_info *sta;
 	int i;
 
+	rcu_read_lock();
+	sta = sta_info_get(local, hdr->addr1);
+
 	memset(sel, 0, sizeof(struct rate_selection));
 
-	ref->ops->get_rate(ref->priv, dev, mode, skb, sel);
+	ref->ops->get_rate(ref->priv, dev, sband, skb, sel);
 
 	/* Select a non-ERP backup rate. */
 	if (!sel->nonerp) {
-		for (i = 0; i < mode->num_rates - 1; i++) {
-			struct ieee80211_rate *rate = &mode->rates[i];
-			if (sel->rate->rate < rate->rate)
+		for (i = 0; i < sband->n_bitrates; i++) {
+			struct ieee80211_rate *rate = &sband->bitrates[i];
+			if (sel->rate->bitrate < rate->bitrate)
 				break;
 
-			if (rate_supported(sta, mode, i) &&
-			    !(rate->flags & IEEE80211_RATE_ERP))
+			if (rate_supported(sta, sband->band, i) &&
+			    !(rate->flags & IEEE80211_RATE_ERP_G))
 				sel->nonerp = rate;
 		}
 	}
 
-	if (sta)
-		sta_info_put(sta);
+	rcu_read_unlock();
 }
 
 struct rate_control_ref *rate_control_get(struct rate_control_ref *ref)
diff --git a/net/mac80211/ieee80211_rate.h b/net/mac80211/rate.h
index 73f19e8aa51c..5b45f33cb766 100644
--- a/net/mac80211/ieee80211_rate.h
+++ b/net/mac80211/rate.h
@@ -14,10 +14,12 @@
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>
 #include <linux/types.h>
+#include <linux/kref.h>
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
 #include "sta_info.h"
 
+/* TODO: kdoc */
 struct rate_selection {
 	/* Selected transmission rate */
 	struct ieee80211_rate *rate;
@@ -34,7 +36,8 @@ struct rate_control_ops {
 			  struct sk_buff *skb,
 			  struct ieee80211_tx_status *status);
 	void (*get_rate)(void *priv, struct net_device *dev,
-			 struct ieee80211_hw_mode *mode, struct sk_buff *skb,
+			 struct ieee80211_supported_band *band,
+			 struct sk_buff *skb,
 			 struct rate_selection *sel);
 	void (*rate_init)(void *priv, void *priv_sta,
 			  struct ieee80211_local *local, struct sta_info *sta);
@@ -66,7 +69,8 @@ void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
 struct rate_control_ref *rate_control_alloc(const char *name,
 					    struct ieee80211_local *local);
 void rate_control_get_rate(struct net_device *dev,
-			   struct ieee80211_hw_mode *mode, struct sk_buff *skb,
+			   struct ieee80211_supported_band *sband,
+			   struct sk_buff *skb,
 			   struct rate_selection *sel);
 struct rate_control_ref *rate_control_get(struct rate_control_ref *ref);
 void rate_control_put(struct rate_control_ref *ref);
@@ -127,23 +131,23 @@ static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
 #endif
 }
 
-static inline int
-rate_supported(struct sta_info *sta, struct ieee80211_hw_mode *mode, int index)
+static inline int rate_supported(struct sta_info *sta,
+				 enum ieee80211_band band,
+				 int index)
 {
-	return (sta == NULL || sta->supp_rates & BIT(index)) &&
-	       (mode->rates[index].flags & IEEE80211_RATE_SUPPORTED);
+	return (sta == NULL || sta->supp_rates[band] & BIT(index));
 }
 
 static inline int
-rate_lowest_index(struct ieee80211_local *local, struct ieee80211_hw_mode *mode,
+rate_lowest_index(struct ieee80211_local *local,
+		  struct ieee80211_supported_band *sband,
 		  struct sta_info *sta)
 {
 	int i;
 
-	for (i = 0; i < mode->num_rates; i++) {
-		if (rate_supported(sta, mode, i))
+	for (i = 0; i < sband->n_bitrates; i++)
+		if (rate_supported(sta, sband->band, i))
 			return i;
-	}
 
 	/* warn when we cannot find a rate. */
 	WARN_ON(1);
@@ -152,10 +156,11 @@ rate_lowest_index(struct ieee80211_local *local, struct ieee80211_hw_mode *mode,
 }
 
 static inline struct ieee80211_rate *
-rate_lowest(struct ieee80211_local *local, struct ieee80211_hw_mode *mode,
+rate_lowest(struct ieee80211_local *local,
+	    struct ieee80211_supported_band *sband,
 	    struct sta_info *sta)
 {
-	return &mode->rates[rate_lowest_index(local, mode, sta)];
+	return &sband->bitrates[rate_lowest_index(local, sband, sta)];
 }
 
 
@@ -166,21 +171,6 @@ void rate_control_deinitialize(struct ieee80211_local *local);
 
 
 /* Rate control algorithms */
-#if defined(RC80211_SIMPLE_COMPILE) || \
-	(defined(CONFIG_MAC80211_RC_SIMPLE) && \
-	 !defined(CONFIG_MAC80211_RC_SIMPLE_MODULE))
-extern int rc80211_simple_init(void);
-extern void rc80211_simple_exit(void);
-#else
-static inline int rc80211_simple_init(void)
-{
-	return 0;
-}
-static inline void rc80211_simple_exit(void)
-{
-}
-#endif
-
 #if defined(RC80211_PID_COMPILE) || \
 	(defined(CONFIG_MAC80211_RC_PID) && \
 	 !defined(CONFIG_MAC80211_RC_PID_MODULE))
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 3b77410588e7..a849b745bdb5 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -14,8 +14,8 @@
 #include <linux/skbuff.h>
 #include <linux/debugfs.h>
 #include <net/mac80211.h>
-#include "ieee80211_rate.h"
-
+#include "rate.h"
+#include "mesh.h"
 #include "rc80211_pid.h"
 
 
@@ -63,6 +63,7 @@
  * RC_PID_ARITH_SHIFT.
  */
 
+
 /* Adjust the rate while ensuring that we won't switch to a lower rate if it
  * exhibited a worse failed frames behaviour and we'll choose the highest rate
  * whose failed frames behaviour is not worse than the one of the original rate
@@ -72,14 +73,14 @@ static void rate_control_pid_adjust_rate(struct ieee80211_local *local,
 					 struct rc_pid_rateinfo *rinfo)
 {
 	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_hw_mode *mode;
-	int cur_sorted, new_sorted, probe, tmp, n_bitrates;
-	int cur = sta->txrate;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+	struct ieee80211_supported_band *sband;
+	int cur_sorted, new_sorted, probe, tmp, n_bitrates, band;
+	int cur = sta->txrate_idx;
 
-	mode = local->oper_hw_mode;
-	n_bitrates = mode->num_rates;
+	sdata = sta->sdata;
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+	band = sband->band;
+	n_bitrates = sband->n_bitrates;
 
 	/* Map passed arguments to sorted values. */
 	cur_sorted = rinfo[cur].rev_index;
@@ -97,20 +98,20 @@ static void rate_control_pid_adjust_rate(struct ieee80211_local *local,
 		/* Ensure that the rate decrease isn't disadvantageous. */
 		for (probe = cur_sorted; probe >= new_sorted; probe--)
 			if (rinfo[probe].diff <= rinfo[cur_sorted].diff &&
-			    rate_supported(sta, mode, rinfo[probe].index))
+			    rate_supported(sta, band, rinfo[probe].index))
 				tmp = probe;
 	} else {
 		/* Look for rate increase with zero (or below) cost. */
 		for (probe = new_sorted + 1; probe < n_bitrates; probe++)
 			if (rinfo[probe].diff <= rinfo[new_sorted].diff &&
-			    rate_supported(sta, mode, rinfo[probe].index))
+			    rate_supported(sta, band, rinfo[probe].index))
 				tmp = probe;
 	}
 
 	/* Fit the rate found to the nearest supported rate. */
 	do {
-		if (rate_supported(sta, mode, rinfo[tmp].index)) {
-			sta->txrate = rinfo[tmp].index;
+		if (rate_supported(sta, band, rinfo[tmp].index)) {
+			sta->txrate_idx = rinfo[tmp].index;
 			break;
 		}
 		if (adj < 0)
@@ -122,7 +123,7 @@ static void rate_control_pid_adjust_rate(struct ieee80211_local *local,
 #ifdef CONFIG_MAC80211_DEBUGFS
 	rate_control_pid_event_rate_change(
 		&((struct rc_pid_sta_info *)sta->rate_ctrl_priv)->events,
-		cur, mode->rates[cur].rate);
+		sta->txrate_idx, sband->bitrates[sta->txrate_idx].bitrate);
 #endif
 }
 
@@ -147,9 +148,12 @@ static void rate_control_pid_sample(struct rc_pid_info *pinfo,
 				    struct ieee80211_local *local,
 				    struct sta_info *sta)
 {
+#ifdef CONFIG_MAC80211_MESH
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
+#endif
 	struct rc_pid_sta_info *spinfo = sta->rate_ctrl_priv;
 	struct rc_pid_rateinfo *rinfo = pinfo->rinfo;
-	struct ieee80211_hw_mode *mode;
+	struct ieee80211_supported_band *sband;
 	u32 pf;
 	s32 err_avg;
 	u32 err_prop;
@@ -158,7 +162,7 @@ static void rate_control_pid_sample(struct rc_pid_info *pinfo,
 	int adj, i, j, tmp;
 	unsigned long period;
 
-	mode = local->oper_hw_mode;
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 	spinfo = sta->rate_ctrl_priv;
 
 	/* In case nothing happened during the previous control interval, turn
@@ -177,25 +181,32 @@ static void rate_control_pid_sample(struct rc_pid_info *pinfo,
 		pf = spinfo->last_pf;
 	else {
 		pf = spinfo->tx_num_failed * 100 / spinfo->tx_num_xmit;
+#ifdef CONFIG_MAC80211_MESH
+		if (pf == 100 &&
+		    sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
+			mesh_plink_broken(sta);
+#endif
 		pf <<= RC_PID_ARITH_SHIFT;
+		sta->fail_avg = ((pf + (spinfo->last_pf << 3)) / 9)
+					>> RC_PID_ARITH_SHIFT;
 	}
 
 	spinfo->tx_num_xmit = 0;
 	spinfo->tx_num_failed = 0;
 
 	/* If we just switched rate, update the rate behaviour info. */
-	if (pinfo->oldrate != sta->txrate) {
+	if (pinfo->oldrate != sta->txrate_idx) {
 
 		i = rinfo[pinfo->oldrate].rev_index;
-		j = rinfo[sta->txrate].rev_index;
+		j = rinfo[sta->txrate_idx].rev_index;
 
 		tmp = (pf - spinfo->last_pf);
 		tmp = RC_PID_DO_ARITH_RIGHT_SHIFT(tmp, RC_PID_ARITH_SHIFT);
 
 		rinfo[j].diff = rinfo[i].diff + tmp;
-		pinfo->oldrate = sta->txrate;
+		pinfo->oldrate = sta->txrate_idx;
 	}
-	rate_control_pid_normalize(pinfo, mode->num_rates);
+	rate_control_pid_normalize(pinfo, sband->n_bitrates);
 
 	/* Compute the proportional, integral and derivative errors. */
 	err_prop = (pinfo->target << RC_PID_ARITH_SHIFT) - pf;
@@ -236,23 +247,27 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
 	struct sta_info *sta;
 	struct rc_pid_sta_info *spinfo;
 	unsigned long period;
+	struct ieee80211_supported_band *sband;
+
+	rcu_read_lock();
 
 	sta = sta_info_get(local, hdr->addr1);
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 
 	if (!sta)
-		return;
+		goto unlock;
 
 	/* Don't update the state if we're not controlling the rate. */
-	sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+	sdata = sta->sdata;
 	if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
-		sta->txrate = sdata->bss->max_ratectrl_rateidx;
-		return;
+		sta->txrate_idx = sdata->bss->max_ratectrl_rateidx;
+		goto unlock;
 	}
 
 	/* Ignore all frames that were sent with a different rate than the rate
 	 * we currently advise mac80211 to use. */
-	if (status->control.rate != &local->oper_hw_mode->rates[sta->txrate])
-		goto ignore;
+	if (status->control.tx_rate != &sband->bitrates[sta->txrate_idx])
+		goto unlock;
 
 	spinfo = sta->rate_ctrl_priv;
 	spinfo->tx_num_xmit++;
@@ -277,9 +292,6 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
 		sta->tx_num_consecutive_failures++;
 		sta->tx_num_mpdu_fail++;
 	} else {
-		sta->last_ack_rssi[0] = sta->last_ack_rssi[1];
-		sta->last_ack_rssi[1] = sta->last_ack_rssi[2];
-		sta->last_ack_rssi[2] = status->ack_signal;
 		sta->tx_num_consecutive_failures = 0;
 		sta->tx_num_mpdu_ok++;
 	}
@@ -293,12 +305,12 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
 	if (time_after(jiffies, spinfo->last_sample + period))
 		rate_control_pid_sample(pinfo, local, sta);
 
-ignore:
-	sta_info_put(sta);
+ unlock:
+	rcu_read_unlock();
 }
 
 static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
-				      struct ieee80211_hw_mode *mode,
+				      struct ieee80211_supported_band *sband,
 				      struct sk_buff *skb,
 				      struct rate_selection *sel)
 {
@@ -309,6 +321,8 @@ static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
 	int rateidx;
 	u16 fc;
 
+	rcu_read_lock();
+
 	sta = sta_info_get(local, hdr->addr1);
 
 	/* Send management frames and broadcast/multicast data using lowest
@@ -316,32 +330,31 @@ static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
 	fc = le16_to_cpu(hdr->frame_control);
 	if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
 	    is_multicast_ether_addr(hdr->addr1) || !sta) {
-		sel->rate = rate_lowest(local, mode, sta);
-		if (sta)
-			sta_info_put(sta);
+		sel->rate = rate_lowest(local, sband, sta);
+		rcu_read_unlock();
 		return;
 	}
 
 	/* If a forced rate is in effect, select it. */
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
-		sta->txrate = sdata->bss->force_unicast_rateidx;
+		sta->txrate_idx = sdata->bss->force_unicast_rateidx;
 
-	rateidx = sta->txrate;
+	rateidx = sta->txrate_idx;
 
-	if (rateidx >= mode->num_rates)
-		rateidx = mode->num_rates - 1;
+	if (rateidx >= sband->n_bitrates)
+		rateidx = sband->n_bitrates - 1;
 
-	sta->last_txrate = rateidx;
+	sta->last_txrate_idx = rateidx;
 
-	sta_info_put(sta);
+	rcu_read_unlock();
 
-	sel->rate = &mode->rates[rateidx];
+	sel->rate = &sband->bitrates[rateidx];
 
 #ifdef CONFIG_MAC80211_DEBUGFS
 	rate_control_pid_event_tx_rate(
 		&((struct rc_pid_sta_info *) sta->rate_ctrl_priv)->events,
-		rateidx, mode->rates[rateidx].rate);
+		rateidx, sband->bitrates[rateidx].bitrate);
 #endif
 }
 
@@ -353,28 +366,33 @@ static void rate_control_pid_rate_init(void *priv, void *priv_sta,
 	 * as we need to have IEEE 802.1X auth succeed immediately after assoc..
 	 * Until that method is implemented, we will use the lowest supported
 	 * rate as a workaround. */
-	sta->txrate = rate_lowest_index(local, local->oper_hw_mode, sta);
+	struct ieee80211_supported_band *sband;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+	sta->txrate_idx = rate_lowest_index(local, sband, sta);
+	sta->fail_avg = 0;
 }
 
 static void *rate_control_pid_alloc(struct ieee80211_local *local)
 {
 	struct rc_pid_info *pinfo;
 	struct rc_pid_rateinfo *rinfo;
-	struct ieee80211_hw_mode *mode;
+	struct ieee80211_supported_band *sband;
 	int i, j, tmp;
 	bool s;
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct rc_pid_debugfs_entries *de;
 #endif
 
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
 	pinfo = kmalloc(sizeof(*pinfo), GFP_ATOMIC);
 	if (!pinfo)
 		return NULL;
 
-	/* We can safely assume that oper_hw_mode won't change unless we get
+	/* We can safely assume that sband won't change unless we get
 	 * reinitialized. */
-	mode = local->oper_hw_mode;
-	rinfo = kmalloc(sizeof(*rinfo) * mode->num_rates, GFP_ATOMIC);
+	rinfo = kmalloc(sizeof(*rinfo) * sband->n_bitrates, GFP_ATOMIC);
 	if (!rinfo) {
 		kfree(pinfo);
 		return NULL;
@@ -383,7 +401,7 @@ static void *rate_control_pid_alloc(struct ieee80211_local *local)
 	/* Sort the rates. This is optimized for the most common case (i.e.
 	 * almost-sorted CCK+OFDM rates). Kind of bubble-sort with reversed
 	 * mapping too. */
-	for (i = 0; i < mode->num_rates; i++) {
+	for (i = 0; i < sband->n_bitrates; i++) {
 		rinfo[i].index = i;
 		rinfo[i].rev_index = i;
 		if (pinfo->fast_start)
@@ -391,11 +409,11 @@ static void *rate_control_pid_alloc(struct ieee80211_local *local)
 		else
 			rinfo[i].diff = i * pinfo->norm_offset;
 	}
-	for (i = 1; i < mode->num_rates; i++) {
+	for (i = 1; i < sband->n_bitrates; i++) {
 		s = 0;
-		for (j = 0; j < mode->num_rates - i; j++)
-			if (unlikely(mode->rates[rinfo[j].index].rate >
-				     mode->rates[rinfo[j + 1].index].rate)) {
+		for (j = 0; j < sband->n_bitrates - i; j++)
+			if (unlikely(sband->bitrates[rinfo[j].index].bitrate >
+				     sband->bitrates[rinfo[j + 1].index].bitrate)) {
 				tmp = rinfo[j].index;
 				rinfo[j].index = rinfo[j + 1].index;
 				rinfo[j + 1].index = tmp;
diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c
index 88b8dc9999bb..ae75d4178739 100644
--- a/net/mac80211/rc80211_pid_debugfs.c
+++ b/net/mac80211/rc80211_pid_debugfs.c
@@ -13,7 +13,7 @@
 #include <linux/skbuff.h>
 
 #include <net/mac80211.h>
-#include "ieee80211_rate.h"
+#include "rate.h"
 
 #include "rc80211_pid.h"
 
diff --git a/net/mac80211/rc80211_simple.c b/net/mac80211/rc80211_simple.c
deleted file mode 100644
index 9a78b116acff..000000000000
--- a/net/mac80211/rc80211_simple.c
+++ /dev/null
@@ -1,400 +0,0 @@
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/compiler.h>
-#include <linux/module.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "debugfs.h"
-
-
-/* This is a minimal implementation of TX rate controlling that can be used
- * as the default when no improved mechanisms are available. */
-
-#define RATE_CONTROL_NUM_DOWN 20
-#define RATE_CONTROL_NUM_UP   15
-
-#define RATE_CONTROL_EMERG_DEC 2
-#define RATE_CONTROL_INTERVAL (HZ / 20)
-#define RATE_CONTROL_MIN_TX 10
-
-static void rate_control_rate_inc(struct ieee80211_local *local,
-				  struct sta_info *sta)
-{
-	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_hw_mode *mode;
-	int i = sta->txrate;
-	int maxrate;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
-	if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
-		/* forced unicast rate - do not change STA rate */
-		return;
-	}
-
-	mode = local->oper_hw_mode;
-	maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1;
-
-	if (i > mode->num_rates)
-		i = mode->num_rates - 2;
-
-	while (i + 1 < mode->num_rates) {
-		i++;
-		if (sta->supp_rates & BIT(i) &&
-		    mode->rates[i].flags & IEEE80211_RATE_SUPPORTED &&
-		    (maxrate < 0 || i <= maxrate)) {
-			sta->txrate = i;
-			break;
-		}
-	}
-}
-
-
-static void rate_control_rate_dec(struct ieee80211_local *local,
-				  struct sta_info *sta)
-{
-	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_hw_mode *mode;
-	int i = sta->txrate;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
-	if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
-		/* forced unicast rate - do not change STA rate */
-		return;
-	}
-
-	mode = local->oper_hw_mode;
-	if (i > mode->num_rates)
-		i = mode->num_rates;
-
-	while (i > 0) {
-		i--;
-		if (sta->supp_rates & BIT(i) &&
-		    mode->rates[i].flags & IEEE80211_RATE_SUPPORTED) {
-			sta->txrate = i;
-			break;
-		}
-	}
-}
-
-struct global_rate_control {
-	int dummy;
-};
-
-struct sta_rate_control {
-	unsigned long last_rate_change;
-	u32 tx_num_failures;
-	u32 tx_num_xmit;
-
-	unsigned long avg_rate_update;
-	u32 tx_avg_rate_sum;
-	u32 tx_avg_rate_num;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-	struct dentry *tx_avg_rate_sum_dentry;
-	struct dentry *tx_avg_rate_num_dentry;
-#endif
-};
-
-
-static void rate_control_simple_tx_status(void *priv, struct net_device *dev,
-					  struct sk_buff *skb,
-					  struct ieee80211_tx_status *status)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	struct sta_info *sta;
-	struct sta_rate_control *srctrl;
-
-	sta = sta_info_get(local, hdr->addr1);
-
-	if (!sta)
-	    return;
-
-	srctrl = sta->rate_ctrl_priv;
-	srctrl->tx_num_xmit++;
-	if (status->excessive_retries) {
-		srctrl->tx_num_failures++;
-		sta->tx_retry_failed++;
-		sta->tx_num_consecutive_failures++;
-		sta->tx_num_mpdu_fail++;
-	} else {
-		sta->last_ack_rssi[0] = sta->last_ack_rssi[1];
-		sta->last_ack_rssi[1] = sta->last_ack_rssi[2];
-		sta->last_ack_rssi[2] = status->ack_signal;
-		sta->tx_num_consecutive_failures = 0;
-		sta->tx_num_mpdu_ok++;
-	}
-	sta->tx_retry_count += status->retry_count;
-	sta->tx_num_mpdu_fail += status->retry_count;
-
-	if (time_after(jiffies,
-		       srctrl->last_rate_change + RATE_CONTROL_INTERVAL) &&
-		srctrl->tx_num_xmit > RATE_CONTROL_MIN_TX) {
-		u32 per_failed;
-		srctrl->last_rate_change = jiffies;
-
-		per_failed = (100 * sta->tx_num_mpdu_fail) /
-			(sta->tx_num_mpdu_fail + sta->tx_num_mpdu_ok);
-		/* TODO: calculate average per_failed to make adjusting
-		 * parameters easier */
-#if 0
-		if (net_ratelimit()) {
-			printk(KERN_DEBUG "MPDU fail=%d ok=%d per_failed=%d\n",
-			       sta->tx_num_mpdu_fail, sta->tx_num_mpdu_ok,
-			       per_failed);
-		}
-#endif
-
-		/*
-		 * XXX: Make these configurable once we have an
-		 * interface to the rate control algorithms
-		 */
-		if (per_failed > RATE_CONTROL_NUM_DOWN) {
-			rate_control_rate_dec(local, sta);
-		} else if (per_failed < RATE_CONTROL_NUM_UP) {
-			rate_control_rate_inc(local, sta);
-		}
-		srctrl->tx_avg_rate_sum += status->control.rate->rate;
-		srctrl->tx_avg_rate_num++;
-		srctrl->tx_num_failures = 0;
-		srctrl->tx_num_xmit = 0;
-	} else if (sta->tx_num_consecutive_failures >=
-		   RATE_CONTROL_EMERG_DEC) {
-		rate_control_rate_dec(local, sta);
-	}
-
-	if (srctrl->avg_rate_update + 60 * HZ < jiffies) {
-		srctrl->avg_rate_update = jiffies;
-		if (srctrl->tx_avg_rate_num > 0) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-			DECLARE_MAC_BUF(mac);
-			printk(KERN_DEBUG "%s: STA %s Average rate: "
-			       "%d (%d/%d)\n",
-			       dev->name, print_mac(mac, sta->addr),
-			       srctrl->tx_avg_rate_sum /
-			       srctrl->tx_avg_rate_num,
-			       srctrl->tx_avg_rate_sum,
-			       srctrl->tx_avg_rate_num);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-			srctrl->tx_avg_rate_sum = 0;
-			srctrl->tx_avg_rate_num = 0;
-		}
-	}
-
-	sta_info_put(sta);
-}
-
-
-static void
-rate_control_simple_get_rate(void *priv, struct net_device *dev,
-			     struct ieee80211_hw_mode *mode,
-			     struct sk_buff *skb,
-			     struct rate_selection *sel)
-{
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	struct ieee80211_sub_if_data *sdata;
-	struct sta_info *sta;
-	int rateidx;
-	u16 fc;
-
-	sta = sta_info_get(local, hdr->addr1);
-
-	/* Send management frames and broadcast/multicast data using lowest
-	 * rate. */
-	fc = le16_to_cpu(hdr->frame_control);
-	if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
-	    is_multicast_ether_addr(hdr->addr1) || !sta) {
-		sel->rate = rate_lowest(local, mode, sta);
-		if (sta)
-			sta_info_put(sta);
-		return;
-	}
-
-	/* If a forced rate is in effect, select it. */
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
-		sta->txrate = sdata->bss->force_unicast_rateidx;
-
-	rateidx = sta->txrate;
-
-	if (rateidx >= mode->num_rates)
-		rateidx = mode->num_rates - 1;
-
-	sta->last_txrate = rateidx;
-
-	sta_info_put(sta);
-
-	sel->rate = &mode->rates[rateidx];
-}
-
-
-static void rate_control_simple_rate_init(void *priv, void *priv_sta,
-					  struct ieee80211_local *local,
-					  struct sta_info *sta)
-{
-	struct ieee80211_hw_mode *mode;
-	int i;
-	sta->txrate = 0;
-	mode = local->oper_hw_mode;
-	/* TODO: This routine should consider using RSSI from previous packets
-	 * as we need to have IEEE 802.1X auth succeed immediately after assoc..
-	 * Until that method is implemented, we will use the lowest supported rate
-	 * as a workaround, */
-	for (i = 0; i < mode->num_rates; i++) {
-		if ((sta->supp_rates & BIT(i)) &&
-		    (mode->rates[i].flags & IEEE80211_RATE_SUPPORTED)) {
-			sta->txrate = i;
-			break;
-		}
-	}
-}
-
-
-static void * rate_control_simple_alloc(struct ieee80211_local *local)
-{
-	struct global_rate_control *rctrl;
-
-	rctrl = kzalloc(sizeof(*rctrl), GFP_ATOMIC);
-
-	return rctrl;
-}
-
-
-static void rate_control_simple_free(void *priv)
-{
-	struct global_rate_control *rctrl = priv;
-	kfree(rctrl);
-}
-
-
-static void rate_control_simple_clear(void *priv)
-{
-}
-
-
-static void * rate_control_simple_alloc_sta(void *priv, gfp_t gfp)
-{
-	struct sta_rate_control *rctrl;
-
-	rctrl = kzalloc(sizeof(*rctrl), gfp);
-
-	return rctrl;
-}
-
-
-static void rate_control_simple_free_sta(void *priv, void *priv_sta)
-{
-	struct sta_rate_control *rctrl = priv_sta;
-	kfree(rctrl);
-}
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-
-static int open_file_generic(struct inode *inode, struct file *file)
-{
-	file->private_data = inode->i_private;
-	return 0;
-}
-
-static ssize_t sta_tx_avg_rate_sum_read(struct file *file,
-					char __user *userbuf,
-					size_t count, loff_t *ppos)
-{
-	struct sta_rate_control *srctrl = file->private_data;
-	char buf[20];
-
-	sprintf(buf, "%d\n", srctrl->tx_avg_rate_sum);
-	return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
-}
-
-static const struct file_operations sta_tx_avg_rate_sum_ops = {
-	.read = sta_tx_avg_rate_sum_read,
-	.open = open_file_generic,
-};
-
-static ssize_t sta_tx_avg_rate_num_read(struct file *file,
-					char __user *userbuf,
-					size_t count, loff_t *ppos)
-{
-	struct sta_rate_control *srctrl = file->private_data;
-	char buf[20];
-
-	sprintf(buf, "%d\n", srctrl->tx_avg_rate_num);
-	return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
-}
-
-static const struct file_operations sta_tx_avg_rate_num_ops = {
-	.read = sta_tx_avg_rate_num_read,
-	.open = open_file_generic,
-};
-
-static void rate_control_simple_add_sta_debugfs(void *priv, void *priv_sta,
-						struct dentry *dir)
-{
-	struct sta_rate_control *srctrl = priv_sta;
-
-	srctrl->tx_avg_rate_num_dentry =
-		debugfs_create_file("rc_simple_sta_tx_avg_rate_num", 0400,
-				    dir, srctrl, &sta_tx_avg_rate_num_ops);
-	srctrl->tx_avg_rate_sum_dentry =
-		debugfs_create_file("rc_simple_sta_tx_avg_rate_sum", 0400,
-				    dir, srctrl, &sta_tx_avg_rate_sum_ops);
-}
-
-static void rate_control_simple_remove_sta_debugfs(void *priv, void *priv_sta)
-{
-	struct sta_rate_control *srctrl = priv_sta;
-
-	debugfs_remove(srctrl->tx_avg_rate_sum_dentry);
-	debugfs_remove(srctrl->tx_avg_rate_num_dentry);
-}
-#endif
-
-static struct rate_control_ops mac80211_rcsimple = {
-	.name = "simple",
-	.tx_status = rate_control_simple_tx_status,
-	.get_rate = rate_control_simple_get_rate,
-	.rate_init = rate_control_simple_rate_init,
-	.clear = rate_control_simple_clear,
-	.alloc = rate_control_simple_alloc,
-	.free = rate_control_simple_free,
-	.alloc_sta = rate_control_simple_alloc_sta,
-	.free_sta = rate_control_simple_free_sta,
-#ifdef CONFIG_MAC80211_DEBUGFS
-	.add_sta_debugfs = rate_control_simple_add_sta_debugfs,
-	.remove_sta_debugfs = rate_control_simple_remove_sta_debugfs,
-#endif
-};
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Simple rate control algorithm");
-
-int __init rc80211_simple_init(void)
-{
-	return ieee80211_rate_control_register(&mac80211_rcsimple);
-}
-
-void rc80211_simple_exit(void)
-{
-	ieee80211_rate_control_unregister(&mac80211_rcsimple);
-}
-
-#ifdef CONFIG_MAC80211_RC_SIMPLE_MODULE
-module_init(rc80211_simple_init);
-module_exit(rc80211_simple_exit);
-#endif
diff --git a/net/mac80211/regdomain.c b/net/mac80211/regdomain.c
deleted file mode 100644
index f42678fa62d1..000000000000
--- a/net/mac80211/regdomain.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * This regulatory domain control implementation is known to be incomplete
- * and confusing. mac80211 regulatory domain control will be significantly
- * reworked in the not-too-distant future.
- *
- * For now, drivers wishing to control which channels are and aren't available
- * are advised as follows:
- *  - set the IEEE80211_HW_DEFAULT_REG_DOMAIN_CONFIGURED flag
- *  - continue to include *ALL* possible channels in the modes registered
- *    through ieee80211_register_hwmode()
- *  - for each allowable ieee80211_channel structure registered in the above
- *    call, set the flag member to some meaningful value such as
- *    IEEE80211_CHAN_W_SCAN | IEEE80211_CHAN_W_ACTIVE_SCAN |
- *    IEEE80211_CHAN_W_IBSS.
- *  - leave flag as 0 for non-allowable channels
- *
- * The usual implementation is for a driver to read a device EEPROM to
- * determine which regulatory domain it should be operating under, then
- * looking up the allowable channels in a driver-local table, then performing
- * the above.
- */
-
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-
-static int ieee80211_regdom = 0x10; /* FCC */
-module_param(ieee80211_regdom, int, 0444);
-MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain; 64=MKK");
-
-/*
- * If firmware is upgraded by the vendor, additional channels can be used based
- * on the new Japanese regulatory rules. This is indicated by setting
- * ieee80211_japan_5ghz module parameter to one when loading the 80211 kernel
- * module.
- */
-static int ieee80211_japan_5ghz /* = 0 */;
-module_param(ieee80211_japan_5ghz, int, 0444);
-MODULE_PARM_DESC(ieee80211_japan_5ghz, "Vendor-updated firmware for 5 GHz");
-
-
-struct ieee80211_channel_range {
-	short start_freq;
-	short end_freq;
-	unsigned char power_level;
-	unsigned char antenna_max;
-};
-
-static const struct ieee80211_channel_range ieee80211_fcc_channels[] = {
-	{ 2412, 2462, 27, 6 } /* IEEE 802.11b/g, channels 1..11 */,
-	{ 5180, 5240, 17, 6 } /* IEEE 802.11a, channels 36..48 */,
-	{ 5260, 5320, 23, 6 } /* IEEE 802.11a, channels 52..64 */,
-	{ 5745, 5825, 30, 6 } /* IEEE 802.11a, channels 149..165, outdoor */,
-	{ 0 }
-};
-
-static const struct ieee80211_channel_range ieee80211_mkk_channels[] = {
-	{ 2412, 2472, 20, 6 } /* IEEE 802.11b/g, channels 1..13 */,
-	{ 5170, 5240, 20, 6 } /* IEEE 802.11a, channels 34..48 */,
-	{ 5260, 5320, 20, 6 } /* IEEE 802.11a, channels 52..64 */,
-	{ 0 }
-};
-
-
-static const struct ieee80211_channel_range *channel_range =
-	ieee80211_fcc_channels;
-
-
-static void ieee80211_unmask_channel(int mode, struct ieee80211_channel *chan)
-{
-	int i;
-
-	chan->flag = 0;
-
-	for (i = 0; channel_range[i].start_freq; i++) {
-		const struct ieee80211_channel_range *r = &channel_range[i];
-		if (r->start_freq <= chan->freq && r->end_freq >= chan->freq) {
-			if (ieee80211_regdom == 64 && !ieee80211_japan_5ghz &&
-			    chan->freq >= 5260 && chan->freq <= 5320) {
-				/*
-				 * Skip new channels in Japan since the
-				 * firmware was not marked having been upgraded
-				 * by the vendor.
-				 */
-				continue;
-			}
-
-			if (ieee80211_regdom == 0x10 &&
-			    (chan->freq == 5190 || chan->freq == 5210 ||
-			     chan->freq == 5230)) {
-				    /* Skip MKK channels when in FCC domain. */
-				    continue;
-			}
-
-			chan->flag |= IEEE80211_CHAN_W_SCAN |
-				IEEE80211_CHAN_W_ACTIVE_SCAN |
-				IEEE80211_CHAN_W_IBSS;
-			chan->power_level = r->power_level;
-			chan->antenna_max = r->antenna_max;
-
-			if (ieee80211_regdom == 64 &&
-			    (chan->freq == 5170 || chan->freq == 5190 ||
-			     chan->freq == 5210 || chan->freq == 5230)) {
-				/*
-				 * New regulatory rules in Japan have backwards
-				 * compatibility with old channels in 5.15-5.25
-				 * GHz band, but the station is not allowed to
-				 * use active scan on these old channels.
-				 */
-				chan->flag &= ~IEEE80211_CHAN_W_ACTIVE_SCAN;
-			}
-
-			if (ieee80211_regdom == 64 &&
-			    (chan->freq == 5260 || chan->freq == 5280 ||
-			     chan->freq == 5300 || chan->freq == 5320)) {
-				/*
-				 * IBSS is not allowed on 5.25-5.35 GHz band
-				 * due to radar detection requirements.
-				 */
-				chan->flag &= ~IEEE80211_CHAN_W_IBSS;
-			}
-
-			break;
-		}
-	}
-}
-
-
-void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode)
-{
-	int c;
-	for (c = 0; c < mode->num_channels; c++)
-		ieee80211_unmask_channel(mode->mode, &mode->channels[c]);
-}
-
-
-void ieee80211_regdomain_init(void)
-{
-	if (ieee80211_regdom == 0x40)
-		channel_range = ieee80211_mkk_channels;
-}
-
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 535407d07fa4..52e4554fdde7 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -9,6 +9,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/jiffies.h>
 #include <linux/kernel.h>
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
@@ -18,7 +19,8 @@
 #include <net/ieee80211_radiotap.h>
 
 #include "ieee80211_i.h"
-#include "ieee80211_led.h"
+#include "led.h"
+#include "mesh.h"
 #include "wep.h"
 #include "wpa.h"
 #include "tkip.h"
@@ -82,10 +84,10 @@ static inline int should_drop_frame(struct ieee80211_rx_status *status,
  */
 static struct sk_buff *
 ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
-		     struct ieee80211_rx_status *status)
+		     struct ieee80211_rx_status *status,
+		     struct ieee80211_rate *rate)
 {
 	struct ieee80211_sub_if_data *sdata;
-	struct ieee80211_rate *rate;
 	int needed_headroom = 0;
 	struct ieee80211_radiotap_header *rthdr;
 	__le64 *rttsft = NULL;
@@ -194,14 +196,11 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 			rtfixed->rx_flags |=
 				cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADFCS);
 
-		rate = ieee80211_get_rate(local, status->phymode,
-					  status->rate);
-		if (rate)
-			rtfixed->rate = rate->rate / 5;
+		rtfixed->rate = rate->bitrate / 5;
 
 		rtfixed->chan_freq = cpu_to_le16(status->freq);
 
-		if (status->phymode == MODE_IEEE80211A)
+		if (status->band == IEEE80211_BAND_5GHZ)
 			rtfixed->chan_flags =
 				cpu_to_le16(IEEE80211_CHAN_OFDM |
 					    IEEE80211_CHAN_5GHZ);
@@ -226,6 +225,9 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 		if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR)
 			continue;
 
+		if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES)
+			continue;
+
 		if (prev_dev) {
 			skb2 = skb_clone(skb, GFP_ATOMIC);
 			if (skb2) {
@@ -249,15 +251,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
 }
 
 
-/* pre-rx handlers
- *
- * these don't have dev/sdata fields in the rx data
- * The sta value should also not be used because it may
- * be NULL even though a STA (in IBSS mode) will be added.
- */
-
-static ieee80211_txrx_result
-ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx)
+static void ieee80211_parse_qos(struct ieee80211_rx_data *rx)
 {
 	u8 *data = rx->skb->data;
 	int tid;
@@ -268,9 +262,9 @@ ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx)
 		/* frame has qos control */
 		tid = qc[0] & QOS_CONTROL_TID_MASK;
 		if (qc[0] & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT)
-			rx->flags |= IEEE80211_TXRXD_RX_AMSDU;
+			rx->flags |= IEEE80211_RX_AMSDU;
 		else
-			rx->flags &= ~IEEE80211_TXRXD_RX_AMSDU;
+			rx->flags &= ~IEEE80211_RX_AMSDU;
 	} else {
 		if (unlikely((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)) {
 			/* Separate TID for management frames */
@@ -286,68 +280,19 @@ ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx)
 	if (rx->sta)
 		I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]);
 
-	rx->u.rx.queue = tid;
+	rx->queue = tid;
 	/* Set skb->priority to 1d tag if highest order bit of TID is not set.
 	 * For now, set skb->priority to 0 for other cases. */
 	rx->skb->priority = (tid > 7) ? 0 : tid;
-
-	return TXRX_CONTINUE;
 }
 
-
-static u32 ieee80211_rx_load_stats(struct ieee80211_local *local,
-			      struct sk_buff *skb,
-			      struct ieee80211_rx_status *status)
+static void ieee80211_verify_ip_alignment(struct ieee80211_rx_data *rx)
 {
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	u32 load = 0, hdrtime;
-	struct ieee80211_rate *rate;
-	struct ieee80211_hw_mode *mode = local->hw.conf.mode;
-	int i;
-
-	/* Estimate total channel use caused by this frame */
-
-	if (unlikely(mode->num_rates < 0))
-		return TXRX_CONTINUE;
-
-	rate = &mode->rates[0];
-	for (i = 0; i < mode->num_rates; i++) {
-		if (mode->rates[i].val == status->rate) {
-			rate = &mode->rates[i];
-			break;
-		}
-	}
-
-	/* 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 &&
-	     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;
-
-	load += skb->len * rate->rate_inv;
-
-	/* Divide channel_use by 8 to avoid wrapping around the counter */
-	load >>= CHAN_UTIL_SHIFT;
-
-	return load;
-}
-
 #ifdef CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT
-static ieee80211_txrx_result
-ieee80211_rx_h_verify_ip_alignment(struct ieee80211_txrx_data *rx)
-{
 	int hdrlen;
 
 	if (!WLAN_FC_DATA_PRESENT(rx->fc))
-		return TXRX_CONTINUE;
+		return;
 
 	/*
 	 * Drivers are required to align the payload data in a way that
@@ -369,83 +314,158 @@ ieee80211_rx_h_verify_ip_alignment(struct ieee80211_txrx_data *rx)
 	 * to move the 802.11 header further back in that case.
 	 */
 	hdrlen = ieee80211_get_hdrlen(rx->fc);
-	if (rx->flags & IEEE80211_TXRXD_RX_AMSDU)
+	if (rx->flags & IEEE80211_RX_AMSDU)
 		hdrlen += ETH_HLEN;
 	WARN_ON_ONCE(((unsigned long)(rx->skb->data + hdrlen)) & 3);
-
-	return TXRX_CONTINUE;
-}
 #endif
+}
+
 
-ieee80211_rx_handler ieee80211_rx_pre_handlers[] =
+static u32 ieee80211_rx_load_stats(struct ieee80211_local *local,
+				   struct sk_buff *skb,
+				   struct ieee80211_rx_status *status,
+				   struct ieee80211_rate *rate)
 {
-	ieee80211_rx_h_parse_qos,
-#ifdef CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT
-	ieee80211_rx_h_verify_ip_alignment,
-#endif
-	NULL
-};
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	u32 load = 0, hdrtime;
+
+	/* 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 (status->band == IEEE80211_BAND_5GHZ ||
+	    (status->band == IEEE80211_BAND_5GHZ &&
+	     rate->flags & IEEE80211_RATE_ERP_G))
+		hdrtime = CHAN_UTIL_HDR_SHORT;
+	else
+		hdrtime = CHAN_UTIL_HDR_LONG;
+
+	load = hdrtime;
+	if (!is_multicast_ether_addr(hdr->addr1))
+		load += hdrtime;
+
+	/* TODO: optimise again */
+	load += skb->len * CHAN_UTIL_RATE_LCM / rate->bitrate;
+
+	/* Divide channel_use by 8 to avoid wrapping around the counter */
+	load >>= CHAN_UTIL_SHIFT;
+
+	return load;
+}
 
 /* rx handlers */
 
-static ieee80211_txrx_result
-ieee80211_rx_h_if_stats(struct ieee80211_txrx_data *rx)
+static ieee80211_rx_result
+ieee80211_rx_h_if_stats(struct ieee80211_rx_data *rx)
 {
 	if (rx->sta)
-		rx->sta->channel_use_raw += rx->u.rx.load;
-	rx->sdata->channel_use_raw += rx->u.rx.load;
-	return TXRX_CONTINUE;
+		rx->sta->channel_use_raw += rx->load;
+	rx->sdata->channel_use_raw += rx->load;
+	return RX_CONTINUE;
 }
 
-static ieee80211_txrx_result
-ieee80211_rx_h_passive_scan(struct ieee80211_txrx_data *rx)
+static ieee80211_rx_result
+ieee80211_rx_h_passive_scan(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_local *local = rx->local;
 	struct sk_buff *skb = rx->skb;
 
 	if (unlikely(local->sta_hw_scanning))
-		return ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status);
+		return ieee80211_sta_rx_scan(rx->dev, skb, rx->status);
 
 	if (unlikely(local->sta_sw_scanning)) {
 		/* drop all the other packets during a software scan anyway */
-		if (ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status)
-		    != TXRX_QUEUED)
+		if (ieee80211_sta_rx_scan(rx->dev, skb, rx->status)
+		    != RX_QUEUED)
 			dev_kfree_skb(skb);
-		return TXRX_QUEUED;
+		return RX_QUEUED;
 	}
 
-	if (unlikely(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) {
+	if (unlikely(rx->flags & IEEE80211_RX_IN_SCAN)) {
 		/* scanning finished during invoking of handlers */
 		I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 	}
 
-	return TXRX_CONTINUE;
+	return RX_CONTINUE;
 }
 
-static ieee80211_txrx_result
-ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
+static ieee80211_rx_result
+ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
+{
+	int hdrlen = ieee80211_get_hdrlen(rx->fc);
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
+
+#define msh_h_get(h, l) ((struct ieee80211s_hdr *) ((u8 *)h + l))
+
+	if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) {
+		if (!((rx->fc & IEEE80211_FCTL_FROMDS) &&
+		      (rx->fc & IEEE80211_FCTL_TODS)))
+			return RX_DROP_MONITOR;
+		if (memcmp(hdr->addr4, rx->dev->dev_addr, ETH_ALEN) == 0)
+			return RX_DROP_MONITOR;
+	}
+
+	/* If there is not an established peer link and this is not a peer link
+	 * establisment frame, beacon or probe, drop the frame.
+	 */
+
+	if (!rx->sta || sta_plink_state(rx->sta) != PLINK_ESTAB) {
+		struct ieee80211_mgmt *mgmt;
+
+		if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT)
+			return RX_DROP_MONITOR;
+
+		switch (rx->fc & IEEE80211_FCTL_STYPE) {
+		case IEEE80211_STYPE_ACTION:
+			mgmt = (struct ieee80211_mgmt *)hdr;
+			if (mgmt->u.action.category != PLINK_CATEGORY)
+				return RX_DROP_MONITOR;
+			/* fall through on else */
+		case IEEE80211_STYPE_PROBE_REQ:
+		case IEEE80211_STYPE_PROBE_RESP:
+		case IEEE80211_STYPE_BEACON:
+			return RX_CONTINUE;
+			break;
+		default:
+			return RX_DROP_MONITOR;
+		}
+
+	 } else if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
+		    is_multicast_ether_addr(hdr->addr1) &&
+		    mesh_rmc_check(hdr->addr4, msh_h_get(hdr, hdrlen), rx->dev))
+		return RX_DROP_MONITOR;
+#undef msh_h_get
+
+	return RX_CONTINUE;
+}
+
+
+static ieee80211_rx_result
+ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_hdr *hdr;
+
 	hdr = (struct ieee80211_hdr *) rx->skb->data;
 
 	/* Drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.2.9) */
 	if (rx->sta && !is_multicast_ether_addr(hdr->addr1)) {
 		if (unlikely(rx->fc & IEEE80211_FCTL_RETRY &&
-			     rx->sta->last_seq_ctrl[rx->u.rx.queue] ==
+			     rx->sta->last_seq_ctrl[rx->queue] ==
 			     hdr->seq_ctrl)) {
-			if (rx->flags & IEEE80211_TXRXD_RXRA_MATCH) {
+			if (rx->flags & IEEE80211_RX_RA_MATCH) {
 				rx->local->dot11FrameDuplicateCount++;
 				rx->sta->num_duplicates++;
 			}
-			return TXRX_DROP;
+			return RX_DROP_MONITOR;
 		} else
-			rx->sta->last_seq_ctrl[rx->u.rx.queue] = hdr->seq_ctrl;
+			rx->sta->last_seq_ctrl[rx->queue] = hdr->seq_ctrl;
 	}
 
 	if (unlikely(rx->skb->len < 16)) {
 		I802_DEBUG_INC(rx->local->rx_handlers_drop_short);
-		return TXRX_DROP;
+		return RX_DROP_MONITOR;
 	}
 
 	/* Drop disallowed frame classes based on STA auth/assoc state;
@@ -456,6 +476,10 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
 	 * deauth/disassoc frames when needed. In addition, hostapd is
 	 * responsible for filtering on both auth and assoc states.
 	 */
+
+	if (ieee80211_vif_is_mesh(&rx->sdata->vif))
+		return ieee80211_rx_mesh_check(rx);
+
 	if (unlikely(((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA ||
 		      ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL &&
 		       (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)) &&
@@ -464,26 +488,26 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
 		if ((!(rx->fc & IEEE80211_FCTL_FROMDS) &&
 		     !(rx->fc & IEEE80211_FCTL_TODS) &&
 		     (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
-		    || !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
+		    || !(rx->flags & IEEE80211_RX_RA_MATCH)) {
 			/* Drop IBSS frames and frames for other hosts
 			 * silently. */
-			return TXRX_DROP;
+			return RX_DROP_MONITOR;
 		}
 
-		return TXRX_DROP;
+		return RX_DROP_MONITOR;
 	}
 
-	return TXRX_CONTINUE;
+	return RX_CONTINUE;
 }
 
 
-static ieee80211_txrx_result
-ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
+static ieee80211_rx_result
+ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
 	int keyidx;
 	int hdrlen;
-	ieee80211_txrx_result result = TXRX_DROP;
+	ieee80211_rx_result result = RX_DROP_UNUSABLE;
 	struct ieee80211_key *stakey = NULL;
 
 	/*
@@ -513,14 +537,14 @@ ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
 	 */
 
 	if (!(rx->fc & IEEE80211_FCTL_PROTECTED))
-		return TXRX_CONTINUE;
+		return RX_CONTINUE;
 
 	/*
 	 * No point in finding a key and decrypting if the frame is neither
 	 * addressed to us nor a multicast frame.
 	 */
-	if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
-		return TXRX_CONTINUE;
+	if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+		return RX_CONTINUE;
 
 	if (rx->sta)
 		stakey = rcu_dereference(rx->sta->key);
@@ -537,14 +561,14 @@ ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
 		 * we somehow allow the driver to tell us which key
 		 * the hardware used if this flag is set?
 		 */
-		if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
-		    (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED))
-			return TXRX_CONTINUE;
+		if ((rx->status->flag & RX_FLAG_DECRYPTED) &&
+		    (rx->status->flag & RX_FLAG_IV_STRIPPED))
+			return RX_CONTINUE;
 
 		hdrlen = ieee80211_get_hdrlen(rx->fc);
 
 		if (rx->skb->len < 8 + hdrlen)
-			return TXRX_DROP; /* TODO: count this? */
+			return RX_DROP_UNUSABLE; /* TODO: count this? */
 
 		/*
 		 * no need to call ieee80211_wep_get_keyidx,
@@ -573,14 +597,14 @@ ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
 			printk(KERN_DEBUG "%s: RX protected frame,"
 			       " but have no key\n", rx->dev->name);
 #endif /* CONFIG_MAC80211_DEBUG */
-		return TXRX_DROP;
+		return RX_DROP_MONITOR;
 	}
 
 	/* Check for weak IVs if possible */
 	if (rx->sta && rx->key->conf.alg == ALG_WEP &&
 	    ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
-	    (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) ||
-	     !(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) &&
+	    (!(rx->status->flag & RX_FLAG_IV_STRIPPED) ||
+	     !(rx->status->flag & RX_FLAG_DECRYPTED)) &&
 	    ieee80211_wep_is_weak_iv(rx->skb, rx->key))
 		rx->sta->wep_weak_iv_count++;
 
@@ -597,7 +621,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
 	}
 
 	/* either the frame has been decrypted or will be dropped */
-	rx->u.rx.status->flag |= RX_FLAG_DECRYPTED;
+	rx->status->flag |= RX_FLAG_DECRYPTED;
 
 	return result;
 }
@@ -607,12 +631,12 @@ static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta)
 	struct ieee80211_sub_if_data *sdata;
 	DECLARE_MAC_BUF(mac);
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+	sdata = sta->sdata;
 
 	if (sdata->bss)
 		atomic_inc(&sdata->bss->num_sta_ps);
 	sta->flags |= WLAN_STA_PS;
-	sta->pspoll = 0;
+	sta->flags &= ~WLAN_STA_PSPOLL;
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 	printk(KERN_DEBUG "%s: STA %s aid %d enters power save mode\n",
 	       dev->name, print_mac(mac, sta->addr), sta->aid);
@@ -628,21 +652,21 @@ static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
 	struct ieee80211_tx_packet_data *pkt_data;
 	DECLARE_MAC_BUF(mac);
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+	sdata = sta->sdata;
+
 	if (sdata->bss)
 		atomic_dec(&sdata->bss->num_sta_ps);
-	sta->flags &= ~(WLAN_STA_PS | WLAN_STA_TIM);
-	sta->pspoll = 0;
-	if (!skb_queue_empty(&sta->ps_tx_buf)) {
-		if (local->ops->set_tim)
-			local->ops->set_tim(local_to_hw(local), sta->aid, 0);
-		if (sdata->bss)
-			bss_tim_clear(local, sdata->bss, sta->aid);
-	}
+
+	sta->flags &= ~(WLAN_STA_PS | WLAN_STA_PSPOLL);
+
+	if (!skb_queue_empty(&sta->ps_tx_buf))
+		sta_info_clear_tim_bit(sta);
+
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 	printk(KERN_DEBUG "%s: STA %s aid %d exits power save mode\n",
 	       dev->name, print_mac(mac, sta->addr), sta->aid);
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
+
 	/* Send all buffered frames to the station */
 	while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
 		pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
@@ -666,15 +690,15 @@ static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
 	return sent;
 }
 
-static ieee80211_txrx_result
-ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
+static ieee80211_rx_result
+ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
 {
 	struct sta_info *sta = rx->sta;
 	struct net_device *dev = rx->dev;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
 
 	if (!sta)
-		return TXRX_CONTINUE;
+		return RX_CONTINUE;
 
 	/* Update last_rx only for IBSS packets which are for the current
 	 * BSSID to avoid keeping the current IBSS network alive in cases where
@@ -690,24 +714,26 @@ ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
 		/* Update last_rx only for unicast frames in order to prevent
 		 * the Probe Request frames (the only broadcast frames from a
 		 * STA in infrastructure mode) from keeping a connection alive.
+		 * Mesh beacons will update last_rx when if they are found to
+		 * match the current local configuration when processed.
 		 */
 		sta->last_rx = jiffies;
 	}
 
-	if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
-		return TXRX_CONTINUE;
+	if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+		return RX_CONTINUE;
 
 	sta->rx_fragments++;
 	sta->rx_bytes += rx->skb->len;
-	sta->last_rssi = rx->u.rx.status->ssi;
-	sta->last_signal = rx->u.rx.status->signal;
-	sta->last_noise = rx->u.rx.status->noise;
+	sta->last_rssi = rx->status->ssi;
+	sta->last_signal = rx->status->signal;
+	sta->last_noise = rx->status->noise;
 
 	if (!(rx->fc & IEEE80211_FCTL_MOREFRAGS)) {
 		/* Change STA power saving mode only in the end of a frame
 		 * exchange sequence */
 		if ((sta->flags & WLAN_STA_PS) && !(rx->fc & IEEE80211_FCTL_PM))
-			rx->u.rx.sent_ps_buffered += ap_sta_ps_end(dev, sta);
+			rx->sent_ps_buffered += ap_sta_ps_end(dev, sta);
 		else if (!(sta->flags & WLAN_STA_PS) &&
 			 (rx->fc & IEEE80211_FCTL_PM))
 			ap_sta_ps_start(dev, sta);
@@ -722,10 +748,10 @@ ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
 		 * as a dropped packed. */
 		sta->rx_packets++;
 		dev_kfree_skb(rx->skb);
-		return TXRX_QUEUED;
+		return RX_QUEUED;
 	}
 
-	return TXRX_CONTINUE;
+	return RX_CONTINUE;
 } /* ieee80211_rx_h_sta_process */
 
 static inline struct ieee80211_fragment_entry *
@@ -801,7 +827,7 @@ ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
 		    compare_ether_addr(hdr->addr2, f_hdr->addr2) != 0)
 			continue;
 
-		if (entry->first_frag_time + 2 * HZ < jiffies) {
+		if (time_after(jiffies, entry->first_frag_time + 2 * HZ)) {
 			__skb_queue_purge(&entry->skb_list);
 			continue;
 		}
@@ -811,8 +837,8 @@ ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
 	return NULL;
 }
 
-static ieee80211_txrx_result
-ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
+static ieee80211_rx_result
+ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_hdr *hdr;
 	u16 sc;
@@ -838,27 +864,27 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
 	if (frag == 0) {
 		/* This is the first fragment of a new frame. */
 		entry = ieee80211_reassemble_add(rx->sdata, frag, seq,
-						 rx->u.rx.queue, &(rx->skb));
+						 rx->queue, &(rx->skb));
 		if (rx->key && rx->key->conf.alg == ALG_CCMP &&
 		    (rx->fc & IEEE80211_FCTL_PROTECTED)) {
 			/* Store CCMP PN so that we can verify that the next
 			 * fragment has a sequential PN value. */
 			entry->ccmp = 1;
 			memcpy(entry->last_pn,
-			       rx->key->u.ccmp.rx_pn[rx->u.rx.queue],
+			       rx->key->u.ccmp.rx_pn[rx->queue],
 			       CCMP_PN_LEN);
 		}
-		return TXRX_QUEUED;
+		return RX_QUEUED;
 	}
 
 	/* This is a fragment for a frame that should already be pending in
 	 * fragment cache. Add this fragment to the end of the pending entry.
 	 */
 	entry = ieee80211_reassemble_find(rx->sdata, rx->fc, frag, seq,
-					  rx->u.rx.queue, hdr);
+					  rx->queue, hdr);
 	if (!entry) {
 		I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
-		return TXRX_DROP;
+		return RX_DROP_MONITOR;
 	}
 
 	/* Verify that MPDUs within one MSDU have sequential PN values.
@@ -867,14 +893,14 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
 		int i;
 		u8 pn[CCMP_PN_LEN], *rpn;
 		if (!rx->key || rx->key->conf.alg != ALG_CCMP)
-			return TXRX_DROP;
+			return RX_DROP_UNUSABLE;
 		memcpy(pn, entry->last_pn, CCMP_PN_LEN);
 		for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
 			pn[i]++;
 			if (pn[i])
 				break;
 		}
-		rpn = rx->key->u.ccmp.rx_pn[rx->u.rx.queue];
+		rpn = rx->key->u.ccmp.rx_pn[rx->queue];
 		if (memcmp(pn, rpn, CCMP_PN_LEN) != 0) {
 			if (net_ratelimit())
 				printk(KERN_DEBUG "%s: defrag: CCMP PN not "
@@ -885,7 +911,7 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
 				       rpn[0], rpn[1], rpn[2], rpn[3], rpn[4],
 				       rpn[5], pn[0], pn[1], pn[2], pn[3],
 				       pn[4], pn[5]);
-			return TXRX_DROP;
+			return RX_DROP_UNUSABLE;
 		}
 		memcpy(entry->last_pn, pn, CCMP_PN_LEN);
 	}
@@ -896,7 +922,7 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
 	entry->extra_len += rx->skb->len;
 	if (rx->fc & IEEE80211_FCTL_MOREFRAGS) {
 		rx->skb = NULL;
-		return TXRX_QUEUED;
+		return RX_QUEUED;
 	}
 
 	rx->skb = __skb_dequeue(&entry->skb_list);
@@ -906,7 +932,7 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
 					      GFP_ATOMIC))) {
 			I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
 			__skb_queue_purge(&entry->skb_list);
-			return TXRX_DROP;
+			return RX_DROP_UNUSABLE;
 		}
 	}
 	while ((skb = __skb_dequeue(&entry->skb_list))) {
@@ -915,7 +941,7 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
 	}
 
 	/* Complete frame has been reassembled - process it now */
-	rx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+	rx->flags |= IEEE80211_RX_FRAGMENTED;
 
  out:
 	if (rx->sta)
@@ -924,11 +950,11 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
 		rx->local->dot11MulticastReceivedFrameCount++;
 	else
 		ieee80211_led_rx(rx->local);
-	return TXRX_CONTINUE;
+	return RX_CONTINUE;
 }
 
-static ieee80211_txrx_result
-ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
+static ieee80211_rx_result
+ieee80211_rx_h_ps_poll(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 	struct sk_buff *skb;
@@ -938,12 +964,12 @@ ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
 	if (likely(!rx->sta ||
 		   (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL ||
 		   (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL ||
-		   !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)))
-		return TXRX_CONTINUE;
+		   !(rx->flags & IEEE80211_RX_RA_MATCH)))
+		return RX_CONTINUE;
 
 	if ((sdata->vif.type != IEEE80211_IF_TYPE_AP) &&
 	    (sdata->vif.type != IEEE80211_IF_TYPE_VLAN))
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 
 	skb = skb_dequeue(&rx->sta->tx_filtered);
 	if (!skb) {
@@ -958,9 +984,11 @@ ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
 		struct ieee80211_hdr *hdr =
 			(struct ieee80211_hdr *) skb->data;
 
-		/* tell TX path to send one frame even though the STA may
-		 * still remain is PS mode after this frame exchange */
-		rx->sta->pspoll = 1;
+		/*
+		 * Tell TX path to send one frame even though the STA may
+		 * still remain is PS mode after this frame exchange.
+		 */
+		rx->sta->flags |= WLAN_STA_PSPOLL;
 
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 		printk(KERN_DEBUG "STA %s aid %d: PS Poll (entries after %d)\n",
@@ -970,46 +998,45 @@ ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
 
 		/* Use MoreData flag to indicate whether there are more
 		 * buffered frames for this STA */
-		if (no_pending_pkts) {
+		if (no_pending_pkts)
 			hdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREDATA);
-			rx->sta->flags &= ~WLAN_STA_TIM;
-		} else
+		else
 			hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
 
 		dev_queue_xmit(skb);
 
-		if (no_pending_pkts) {
-			if (rx->local->ops->set_tim)
-				rx->local->ops->set_tim(local_to_hw(rx->local),
-						       rx->sta->aid, 0);
-			if (rx->sdata->bss)
-				bss_tim_clear(rx->local, rx->sdata->bss, rx->sta->aid);
-		}
+		if (no_pending_pkts)
+			sta_info_clear_tim_bit(rx->sta);
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
-	} else if (!rx->u.rx.sent_ps_buffered) {
+	} else if (!rx->sent_ps_buffered) {
+		/*
+		 * FIXME: This can be the result of a race condition between
+		 *	  us expiring a frame and the station polling for it.
+		 *	  Should we send it a null-func frame indicating we
+		 *	  have nothing buffered for it?
+		 */
 		printk(KERN_DEBUG "%s: STA %s sent PS Poll even "
 		       "though there is no buffered frames for it\n",
 		       rx->dev->name, print_mac(mac, rx->sta->addr));
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-
 	}
 
-	/* Free PS Poll skb here instead of returning TXRX_DROP that would
+	/* Free PS Poll skb here instead of returning RX_DROP that would
 	 * count as an dropped frame. */
 	dev_kfree_skb(rx->skb);
 
-	return TXRX_QUEUED;
+	return RX_QUEUED;
 }
 
-static ieee80211_txrx_result
-ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
+static ieee80211_rx_result
+ieee80211_rx_h_remove_qos_control(struct ieee80211_rx_data *rx)
 {
 	u16 fc = rx->fc;
 	u8 *data = rx->skb->data;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) data;
 
 	if (!WLAN_FC_IS_QOS_DATA(fc))
-		return TXRX_CONTINUE;
+		return RX_CONTINUE;
 
 	/* remove the qos control field, update frame type and meta-data */
 	memmove(data + 2, data, ieee80211_get_hdrlen(fc) - 2);
@@ -1018,17 +1045,17 @@ ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
 	rx->fc = fc &= ~IEEE80211_STYPE_QOS_DATA;
 	hdr->frame_control = cpu_to_le16(fc);
 
-	return TXRX_CONTINUE;
+	return RX_CONTINUE;
 }
 
 static int
-ieee80211_802_1x_port_control(struct ieee80211_txrx_data *rx)
+ieee80211_802_1x_port_control(struct ieee80211_rx_data *rx)
 {
-	if (unlikely(rx->sdata->ieee802_1x_pac &&
-		     (!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED)))) {
+	if (unlikely(!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED))) {
 #ifdef CONFIG_MAC80211_DEBUG
-		printk(KERN_DEBUG "%s: dropped frame "
-		       "(unauthorized port)\n", rx->dev->name);
+		if (net_ratelimit())
+			printk(KERN_DEBUG "%s: dropped frame "
+			       "(unauthorized port)\n", rx->dev->name);
 #endif /* CONFIG_MAC80211_DEBUG */
 		return -EACCES;
 	}
@@ -1037,30 +1064,27 @@ ieee80211_802_1x_port_control(struct ieee80211_txrx_data *rx)
 }
 
 static int
-ieee80211_drop_unencrypted(struct ieee80211_txrx_data *rx)
+ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx)
 {
 	/*
 	 * Pass through unencrypted frames if the hardware has
 	 * decrypted them already.
 	 */
-	if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED)
+	if (rx->status->flag & RX_FLAG_DECRYPTED)
 		return 0;
 
 	/* Drop unencrypted frames if key is set. */
 	if (unlikely(!(rx->fc & IEEE80211_FCTL_PROTECTED) &&
 		     (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
 		     (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
-		     (rx->key || rx->sdata->drop_unencrypted))) {
-		if (net_ratelimit())
-			printk(KERN_DEBUG "%s: RX non-WEP frame, but expected "
-			       "encryption\n", rx->dev->name);
+		     (rx->key || rx->sdata->drop_unencrypted)))
 		return -EACCES;
-	}
+
 	return 0;
 }
 
 static int
-ieee80211_data_to_8023(struct ieee80211_txrx_data *rx)
+ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
 {
 	struct net_device *dev = rx->dev;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
@@ -1082,6 +1106,21 @@ ieee80211_data_to_8023(struct ieee80211_txrx_data *rx)
 
 	hdrlen = ieee80211_get_hdrlen(fc);
 
+	if (ieee80211_vif_is_mesh(&sdata->vif)) {
+		int meshhdrlen = ieee80211_get_mesh_hdrlen(
+				(struct ieee80211s_hdr *) (skb->data + hdrlen));
+		/* Copy on cb:
+		 *  - mesh header: to be used for mesh forwarding
+		 * decision. It will also be used as mesh header template at
+		 * tx.c:ieee80211_subif_start_xmit() if interface
+		 * type is mesh and skb->pkt_type == PACKET_OTHERHOST
+		 *  - ta: to be used if a RERR needs to be sent.
+		 */
+		memcpy(skb->cb, skb->data + hdrlen, meshhdrlen);
+		memcpy(MESH_PREQ(skb), hdr->addr2, ETH_ALEN);
+		hdrlen += meshhdrlen;
+	}
+
 	/* convert IEEE 802.11 header + possible LLC headers into Ethernet
 	 * header
 	 * IEEE 802.11 address fields:
@@ -1115,9 +1154,10 @@ ieee80211_data_to_8023(struct ieee80211_txrx_data *rx)
 		memcpy(dst, hdr->addr3, ETH_ALEN);
 		memcpy(src, hdr->addr4, ETH_ALEN);
 
-		if (unlikely(sdata->vif.type != IEEE80211_IF_TYPE_WDS)) {
-			if (net_ratelimit())
-				printk(KERN_DEBUG "%s: dropped FromDS&ToDS "
+		 if (unlikely(sdata->vif.type != IEEE80211_IF_TYPE_WDS &&
+			     sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT)) {
+			 if (net_ratelimit())
+				 printk(KERN_DEBUG "%s: dropped FromDS&ToDS "
 				       "frame (RA=%s TA=%s DA=%s SA=%s)\n",
 				       rx->dev->name,
 				       print_mac(mac, hdr->addr1),
@@ -1192,7 +1232,7 @@ ieee80211_data_to_8023(struct ieee80211_txrx_data *rx)
 /*
  * requires that rx->skb is a frame with ethernet header
  */
-static bool ieee80211_frame_allowed(struct ieee80211_txrx_data *rx)
+static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx)
 {
 	static const u8 pae_group_addr[ETH_ALEN]
 		= { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x03 };
@@ -1218,7 +1258,7 @@ static bool ieee80211_frame_allowed(struct ieee80211_txrx_data *rx)
  * requires that rx->skb is a frame with ethernet header
  */
 static void
-ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
+ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
 {
 	struct net_device *dev = rx->dev;
 	struct ieee80211_local *local = rx->local;
@@ -1232,7 +1272,7 @@ ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
 
 	if (local->bridge_packets && (sdata->vif.type == IEEE80211_IF_TYPE_AP ||
 				      sdata->vif.type == IEEE80211_IF_TYPE_VLAN) &&
-	    (rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
+	    (rx->flags & IEEE80211_RX_RA_MATCH)) {
 		if (is_multicast_ether_addr(ehdr->h_dest)) {
 			/*
 			 * send multicast frames both to higher layers in
@@ -1244,7 +1284,7 @@ ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
 				       "multicast frame\n", dev->name);
 		} else {
 			dsta = sta_info_get(local, skb->data);
-			if (dsta && dsta->dev == dev) {
+			if (dsta && dsta->sdata->dev == dev) {
 				/*
 				 * The destination station is associated to
 				 * this AP (in this VLAN), so send the frame
@@ -1254,8 +1294,38 @@ ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
 				xmit_skb = skb;
 				skb = NULL;
 			}
-			if (dsta)
-				sta_info_put(dsta);
+		}
+	}
+
+	/* Mesh forwarding */
+	if (ieee80211_vif_is_mesh(&sdata->vif)) {
+		u8 *mesh_ttl = &((struct ieee80211s_hdr *)skb->cb)->ttl;
+		(*mesh_ttl)--;
+
+		if (is_multicast_ether_addr(skb->data)) {
+			if (*mesh_ttl > 0) {
+				xmit_skb = skb_copy(skb, GFP_ATOMIC);
+				if (!xmit_skb && net_ratelimit())
+					printk(KERN_DEBUG "%s: failed to clone "
+					       "multicast frame\n", dev->name);
+				else
+					xmit_skb->pkt_type = PACKET_OTHERHOST;
+			} else
+				IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.sta,
+							     dropped_frames_ttl);
+		} else if (skb->pkt_type != PACKET_OTHERHOST &&
+			compare_ether_addr(dev->dev_addr, skb->data) != 0) {
+			if (*mesh_ttl == 0) {
+				IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.sta,
+							     dropped_frames_ttl);
+				dev_kfree_skb(skb);
+				skb = NULL;
+			} else {
+				xmit_skb = skb;
+				xmit_skb->pkt_type = PACKET_OTHERHOST;
+				if (!(dev->flags & IFF_PROMISC))
+					skb  = NULL;
+			}
 		}
 	}
 
@@ -1275,8 +1345,8 @@ ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
 	}
 }
 
-static ieee80211_txrx_result
-ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
+static ieee80211_rx_result
+ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
 {
 	struct net_device *dev = rx->dev;
 	struct ieee80211_local *local = rx->local;
@@ -1291,17 +1361,17 @@ ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
 
 	fc = rx->fc;
 	if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
-		return TXRX_CONTINUE;
+		return RX_CONTINUE;
 
 	if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
-		return TXRX_DROP;
+		return RX_DROP_MONITOR;
 
-	if (!(rx->flags & IEEE80211_TXRXD_RX_AMSDU))
-		return TXRX_CONTINUE;
+	if (!(rx->flags & IEEE80211_RX_AMSDU))
+		return RX_CONTINUE;
 
 	err = ieee80211_data_to_8023(rx);
 	if (unlikely(err))
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 
 	skb->dev = dev;
 
@@ -1311,7 +1381,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
 	/* skip the wrapping header */
 	eth = (struct ethhdr *) skb_pull(skb, sizeof(struct ethhdr));
 	if (!eth)
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 
 	while (skb != frame) {
 		u8 padding;
@@ -1326,7 +1396,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
 		/* the last MSDU has no padding */
 		if (subframe_len > remaining) {
 			printk(KERN_DEBUG "%s: wrong buffer size", dev->name);
-			return TXRX_DROP;
+			return RX_DROP_UNUSABLE;
 		}
 
 		skb_pull(skb, sizeof(struct ethhdr));
@@ -1338,7 +1408,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
 					      subframe_len);
 
 			if (frame == NULL)
-				return TXRX_DROP;
+				return RX_DROP_UNUSABLE;
 
 			skb_reserve(frame, local->hw.extra_tx_headroom +
 				    sizeof(struct ethhdr));
@@ -1351,7 +1421,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
 				printk(KERN_DEBUG "%s: wrong buffer size ",
 				       dev->name);
 				dev_kfree_skb(frame);
-				return TXRX_DROP;
+				return RX_DROP_UNUSABLE;
 			}
 		}
 
@@ -1381,7 +1451,7 @@ ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
 
 		if (!ieee80211_frame_allowed(rx)) {
 			if (skb == frame) /* last frame */
-				return TXRX_DROP;
+				return RX_DROP_UNUSABLE;
 			dev_kfree_skb(frame);
 			continue;
 		}
@@ -1389,11 +1459,11 @@ ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
 		ieee80211_deliver_skb(rx);
 	}
 
-	return TXRX_QUEUED;
+	return RX_QUEUED;
 }
 
-static ieee80211_txrx_result
-ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
+static ieee80211_rx_result
+ieee80211_rx_h_data(struct ieee80211_rx_data *rx)
 {
 	struct net_device *dev = rx->dev;
 	u16 fc;
@@ -1401,17 +1471,17 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
 
 	fc = rx->fc;
 	if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
-		return TXRX_CONTINUE;
+		return RX_CONTINUE;
 
 	if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
-		return TXRX_DROP;
+		return RX_DROP_MONITOR;
 
 	err = ieee80211_data_to_8023(rx);
 	if (unlikely(err))
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 
 	if (!ieee80211_frame_allowed(rx))
-		return TXRX_DROP;
+		return RX_DROP_MONITOR;
 
 	rx->skb->dev = dev;
 
@@ -1420,11 +1490,11 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
 
 	ieee80211_deliver_skb(rx);
 
-	return TXRX_QUEUED;
+	return RX_QUEUED;
 }
 
-static ieee80211_txrx_result
-ieee80211_rx_h_ctrl(struct ieee80211_txrx_data *rx)
+static ieee80211_rx_result
+ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_local *local = rx->local;
 	struct ieee80211_hw *hw = &local->hw;
@@ -1435,15 +1505,16 @@ ieee80211_rx_h_ctrl(struct ieee80211_txrx_data *rx)
 	u16 tid;
 
 	if (likely((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL))
-		return TXRX_CONTINUE;
+		return RX_CONTINUE;
 
 	if ((rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BACK_REQ) {
 		if (!rx->sta)
-			return TXRX_CONTINUE;
+			return RX_CONTINUE;
 		tid = le16_to_cpu(bar->control) >> 12;
-		tid_agg_rx = &(rx->sta->ampdu_mlme.tid_rx[tid]);
-		if (tid_agg_rx->state != HT_AGG_STATE_OPERATIONAL)
-			return TXRX_CONTINUE;
+		if (rx->sta->ampdu_mlme.tid_state_rx[tid]
+					!= HT_AGG_STATE_OPERATIONAL)
+			return RX_CONTINUE;
+		tid_agg_rx = rx->sta->ampdu_mlme.tid_rx[tid];
 
 		start_seq_num = le16_to_cpu(bar->start_seq_num) >> 4;
 
@@ -1460,77 +1531,35 @@ ieee80211_rx_h_ctrl(struct ieee80211_txrx_data *rx)
 		ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, NULL,
 						 start_seq_num, 1);
 		rcu_read_unlock();
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 	}
 
-	return TXRX_CONTINUE;
+	return RX_CONTINUE;
 }
 
-static ieee80211_txrx_result
-ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
+static ieee80211_rx_result
+ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_sub_if_data *sdata;
 
-	if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
-		return TXRX_DROP;
+	if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+		return RX_DROP_MONITOR;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
 	if ((sdata->vif.type == IEEE80211_IF_TYPE_STA ||
-	     sdata->vif.type == IEEE80211_IF_TYPE_IBSS) &&
+	     sdata->vif.type == IEEE80211_IF_TYPE_IBSS ||
+	     sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT) &&
 	    !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
-		ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status);
+		ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->status);
 	else
-		return TXRX_DROP;
+		return RX_DROP_MONITOR;
 
-	return TXRX_QUEUED;
-}
-
-static inline ieee80211_txrx_result __ieee80211_invoke_rx_handlers(
-				struct ieee80211_local *local,
-				ieee80211_rx_handler *handlers,
-				struct ieee80211_txrx_data *rx,
-				struct sta_info *sta)
-{
-	ieee80211_rx_handler *handler;
-	ieee80211_txrx_result res = TXRX_DROP;
-
-	for (handler = handlers; *handler != NULL; handler++) {
-		res = (*handler)(rx);
-
-		switch (res) {
-		case TXRX_CONTINUE:
-			continue;
-		case TXRX_DROP:
-			I802_DEBUG_INC(local->rx_handlers_drop);
-			if (sta)
-				sta->rx_dropped++;
-			break;
-		case TXRX_QUEUED:
-			I802_DEBUG_INC(local->rx_handlers_queued);
-			break;
-		}
-		break;
-	}
-
-	if (res == TXRX_DROP)
-		dev_kfree_skb(rx->skb);
-	return res;
-}
-
-static inline void ieee80211_invoke_rx_handlers(struct ieee80211_local *local,
-						ieee80211_rx_handler *handlers,
-						struct ieee80211_txrx_data *rx,
-						struct sta_info *sta)
-{
-	if (__ieee80211_invoke_rx_handlers(local, handlers, rx, sta) ==
-	    TXRX_CONTINUE)
-		dev_kfree_skb(rx->skb);
+	return RX_QUEUED;
 }
 
 static void ieee80211_rx_michael_mic_report(struct net_device *dev,
 					    struct ieee80211_hdr *hdr,
-					    struct sta_info *sta,
-					    struct ieee80211_txrx_data *rx)
+					    struct ieee80211_rx_data *rx)
 {
 	int keyidx, hdrlen;
 	DECLARE_MAC_BUF(mac);
@@ -1548,7 +1577,7 @@ static void ieee80211_rx_michael_mic_report(struct net_device *dev,
 		       dev->name, print_mac(mac, hdr->addr2),
 		       print_mac(mac2, hdr->addr1), keyidx);
 
-	if (!sta) {
+	if (!rx->sta) {
 		/*
 		 * Some hardware seem to generate incorrect Michael MIC
 		 * reports; ignore them to avoid triggering countermeasures.
@@ -1600,7 +1629,89 @@ static void ieee80211_rx_michael_mic_report(struct net_device *dev,
 	rx->skb = NULL;
 }
 
-ieee80211_rx_handler ieee80211_rx_handlers[] =
+/* TODO: use IEEE80211_RX_FRAGMENTED */
+static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx)
+{
+	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_local *local = rx->local;
+	struct ieee80211_rtap_hdr {
+		struct ieee80211_radiotap_header hdr;
+		u8 flags;
+		u8 rate;
+		__le16 chan_freq;
+		__le16 chan_flags;
+	} __attribute__ ((packed)) *rthdr;
+	struct sk_buff *skb = rx->skb, *skb2;
+	struct net_device *prev_dev = NULL;
+	struct ieee80211_rx_status *status = rx->status;
+
+	if (rx->flags & IEEE80211_RX_CMNTR_REPORTED)
+		goto out_free_skb;
+
+	if (skb_headroom(skb) < sizeof(*rthdr) &&
+	    pskb_expand_head(skb, sizeof(*rthdr), 0, GFP_ATOMIC))
+		goto out_free_skb;
+
+	rthdr = (void *)skb_push(skb, sizeof(*rthdr));
+	memset(rthdr, 0, sizeof(*rthdr));
+	rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
+	rthdr->hdr.it_present =
+		cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
+			    (1 << IEEE80211_RADIOTAP_RATE) |
+			    (1 << IEEE80211_RADIOTAP_CHANNEL));
+
+	rthdr->rate = rx->rate->bitrate / 5;
+	rthdr->chan_freq = cpu_to_le16(status->freq);
+
+	if (status->band == IEEE80211_BAND_5GHZ)
+		rthdr->chan_flags = cpu_to_le16(IEEE80211_CHAN_OFDM |
+						IEEE80211_CHAN_5GHZ);
+	else
+		rthdr->chan_flags = cpu_to_le16(IEEE80211_CHAN_DYN |
+						IEEE80211_CHAN_2GHZ);
+
+	skb_set_mac_header(skb, 0);
+	skb->ip_summed = CHECKSUM_UNNECESSARY;
+	skb->pkt_type = PACKET_OTHERHOST;
+	skb->protocol = htons(ETH_P_802_2);
+
+	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+		if (!netif_running(sdata->dev))
+			continue;
+
+		if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR ||
+		    !(sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
+			continue;
+
+		if (prev_dev) {
+			skb2 = skb_clone(skb, GFP_ATOMIC);
+			if (skb2) {
+				skb2->dev = prev_dev;
+				netif_rx(skb2);
+			}
+		}
+
+		prev_dev = sdata->dev;
+		sdata->dev->stats.rx_packets++;
+		sdata->dev->stats.rx_bytes += skb->len;
+	}
+
+	if (prev_dev) {
+		skb->dev = prev_dev;
+		netif_rx(skb);
+		skb = NULL;
+	} else
+		goto out_free_skb;
+
+	rx->flags |= IEEE80211_RX_CMNTR_REPORTED;
+	return;
+
+ out_free_skb:
+	dev_kfree_skb(skb);
+}
+
+typedef ieee80211_rx_result (*ieee80211_rx_handler)(struct ieee80211_rx_data *);
+static ieee80211_rx_handler ieee80211_rx_handlers[] =
 {
 	ieee80211_rx_h_if_stats,
 	ieee80211_rx_h_passive_scan,
@@ -1622,10 +1733,51 @@ ieee80211_rx_handler ieee80211_rx_handlers[] =
 	NULL
 };
 
+static void ieee80211_invoke_rx_handlers(struct ieee80211_sub_if_data *sdata,
+					 struct ieee80211_rx_data *rx,
+					 struct sk_buff *skb)
+{
+	ieee80211_rx_handler *handler;
+	ieee80211_rx_result res = RX_DROP_MONITOR;
+
+	rx->skb = skb;
+	rx->sdata = sdata;
+	rx->dev = sdata->dev;
+
+	for (handler = ieee80211_rx_handlers; *handler != NULL; handler++) {
+		res = (*handler)(rx);
+
+		switch (res) {
+		case RX_CONTINUE:
+			continue;
+		case RX_DROP_UNUSABLE:
+		case RX_DROP_MONITOR:
+			I802_DEBUG_INC(sdata->local->rx_handlers_drop);
+			if (rx->sta)
+				rx->sta->rx_dropped++;
+			break;
+		case RX_QUEUED:
+			I802_DEBUG_INC(sdata->local->rx_handlers_queued);
+			break;
+		}
+		break;
+	}
+
+	switch (res) {
+	case RX_CONTINUE:
+	case RX_DROP_MONITOR:
+		ieee80211_rx_cooked_monitor(rx);
+		break;
+	case RX_DROP_UNUSABLE:
+		dev_kfree_skb(rx->skb);
+		break;
+	}
+}
+
 /* main receive path */
 
 static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
-				u8 *bssid, struct ieee80211_txrx_data *rx,
+				u8 *bssid, struct ieee80211_rx_data *rx,
 				struct ieee80211_hdr *hdr)
 {
 	int multicast = is_multicast_ether_addr(hdr->addr1);
@@ -1635,34 +1787,47 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 		if (!bssid)
 			return 0;
 		if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
-			if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+			if (!(rx->flags & IEEE80211_RX_IN_SCAN))
 				return 0;
-			rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+			rx->flags &= ~IEEE80211_RX_RA_MATCH;
 		} else if (!multicast &&
 			   compare_ether_addr(sdata->dev->dev_addr,
 					      hdr->addr1) != 0) {
 			if (!(sdata->dev->flags & IFF_PROMISC))
 				return 0;
-			rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+			rx->flags &= ~IEEE80211_RX_RA_MATCH;
 		}
 		break;
 	case IEEE80211_IF_TYPE_IBSS:
 		if (!bssid)
 			return 0;
-		if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
-			if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+		if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
+		    (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON)
+			return 1;
+		else if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
+			if (!(rx->flags & IEEE80211_RX_IN_SCAN))
 				return 0;
-			rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+			rx->flags &= ~IEEE80211_RX_RA_MATCH;
 		} else if (!multicast &&
 			   compare_ether_addr(sdata->dev->dev_addr,
 					      hdr->addr1) != 0) {
 			if (!(sdata->dev->flags & IFF_PROMISC))
 				return 0;
-			rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+			rx->flags &= ~IEEE80211_RX_RA_MATCH;
 		} else if (!rx->sta)
 			rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
 							 bssid, hdr->addr2);
 		break;
+	case IEEE80211_IF_TYPE_MESH_POINT:
+		if (!multicast &&
+		    compare_ether_addr(sdata->dev->dev_addr,
+				       hdr->addr1) != 0) {
+			if (!(sdata->dev->flags & IFF_PROMISC))
+				return 0;
+
+			rx->flags &= ~IEEE80211_RX_RA_MATCH;
+		}
+		break;
 	case IEEE80211_IF_TYPE_VLAN:
 	case IEEE80211_IF_TYPE_AP:
 		if (!bssid) {
@@ -1671,12 +1836,12 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 				return 0;
 		} else if (!ieee80211_bssid_match(bssid,
 					sdata->dev->dev_addr)) {
-			if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+			if (!(rx->flags & IEEE80211_RX_IN_SCAN))
 				return 0;
-			rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
+			rx->flags &= ~IEEE80211_RX_RA_MATCH;
 		}
 		if (sdata->dev == sdata->local->mdev &&
-		    !(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
+		    !(rx->flags & IEEE80211_RX_IN_SCAN))
 			/* do not receive anything via
 			 * master device when not scanning */
 			return 0;
@@ -1707,13 +1872,13 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
 					 struct sk_buff *skb,
 					 struct ieee80211_rx_status *status,
-					 u32 load)
+					 u32 load,
+					 struct ieee80211_rate *rate)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata;
-	struct sta_info *sta;
 	struct ieee80211_hdr *hdr;
-	struct ieee80211_txrx_data rx;
+	struct ieee80211_rx_data rx;
 	u16 type;
 	int prepares;
 	struct ieee80211_sub_if_data *prev = NULL;
@@ -1725,42 +1890,33 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
 	rx.skb = skb;
 	rx.local = local;
 
-	rx.u.rx.status = status;
-	rx.u.rx.load = load;
+	rx.status = status;
+	rx.load = load;
+	rx.rate = rate;
 	rx.fc = le16_to_cpu(hdr->frame_control);
 	type = rx.fc & IEEE80211_FCTL_FTYPE;
 
 	if (type == IEEE80211_FTYPE_DATA || type == IEEE80211_FTYPE_MGMT)
 		local->dot11ReceivedFragmentCount++;
 
-	sta = rx.sta = sta_info_get(local, hdr->addr2);
-	if (sta) {
-		rx.dev = rx.sta->dev;
-		rx.sdata = IEEE80211_DEV_TO_SUB_IF(rx.dev);
+	rx.sta = sta_info_get(local, hdr->addr2);
+	if (rx.sta) {
+		rx.sdata = rx.sta->sdata;
+		rx.dev = rx.sta->sdata->dev;
 	}
 
 	if ((status->flag & RX_FLAG_MMIC_ERROR)) {
-		ieee80211_rx_michael_mic_report(local->mdev, hdr, sta, &rx);
-		goto end;
+		ieee80211_rx_michael_mic_report(local->mdev, hdr, &rx);
+		return;
 	}
 
 	if (unlikely(local->sta_sw_scanning || local->sta_hw_scanning))
-		rx.flags |= IEEE80211_TXRXD_RXIN_SCAN;
+		rx.flags |= IEEE80211_RX_IN_SCAN;
 
-	if (__ieee80211_invoke_rx_handlers(local, local->rx_pre_handlers, &rx,
-					   sta) != TXRX_CONTINUE)
-		goto end;
-	skb = rx.skb;
+	ieee80211_parse_qos(&rx);
+	ieee80211_verify_ip_alignment(&rx);
 
-	if (sta && !(sta->flags & (WLAN_STA_WDS | WLAN_STA_ASSOC_AP)) &&
-	    !atomic_read(&local->iff_promiscs) &&
-	    !is_multicast_ether_addr(hdr->addr1)) {
-		rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
-		ieee80211_invoke_rx_handlers(local, local->rx_handlers, &rx,
-					     rx.sta);
-		sta_info_put(sta);
-		return;
-	}
+	skb = rx.skb;
 
 	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
 		if (!netif_running(sdata->dev))
@@ -1770,10 +1926,8 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
 			continue;
 
 		bssid = ieee80211_get_bssid(hdr, skb->len, sdata->vif.type);
-		rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
+		rx.flags |= IEEE80211_RX_RA_MATCH;
 		prepares = prepare_for_handlers(sdata, bssid, &rx, hdr);
-		/* prepare_for_handlers can change sta */
-		sta = rx.sta;
 
 		if (!prepares)
 			continue;
@@ -1804,26 +1958,14 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
 			continue;
 		}
 		rx.fc = le16_to_cpu(hdr->frame_control);
-		rx.skb = skb_new;
-		rx.dev = prev->dev;
-		rx.sdata = prev;
-		ieee80211_invoke_rx_handlers(local, local->rx_handlers,
-					     &rx, sta);
+		ieee80211_invoke_rx_handlers(prev, &rx, skb_new);
 		prev = sdata;
 	}
 	if (prev) {
 		rx.fc = le16_to_cpu(hdr->frame_control);
-		rx.skb = skb;
-		rx.dev = prev->dev;
-		rx.sdata = prev;
-		ieee80211_invoke_rx_handlers(local, local->rx_handlers,
-					     &rx, sta);
+		ieee80211_invoke_rx_handlers(prev, &rx, skb);
 	} else
 		dev_kfree_skb(skb);
-
- end:
-	if (sta)
-		sta_info_put(sta);
 }
 
 #define SEQ_MODULO 0x1000
@@ -1859,6 +2001,8 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
 	u16 head_seq_num, buf_size;
 	int index;
 	u32 pkt_load;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_rate *rate;
 
 	buf_size = tid_agg_rx->buf_size;
 	head_seq_num = tid_agg_rx->head_seq_num;
@@ -1889,12 +2033,14 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
 				memcpy(&status,
 					tid_agg_rx->reorder_buf[index]->cb,
 					sizeof(status));
+				sband = local->hw.wiphy->bands[status.band];
+				rate = &sband->bitrates[status.rate_idx];
 				pkt_load = ieee80211_rx_load_stats(local,
 						tid_agg_rx->reorder_buf[index],
-						&status);
+						&status, rate);
 				__ieee80211_rx_handle_packet(hw,
 					tid_agg_rx->reorder_buf[index],
-					&status, pkt_load);
+					&status, pkt_load, rate);
 				tid_agg_rx->stored_mpdu_num--;
 				tid_agg_rx->reorder_buf[index] = NULL;
 			}
@@ -1934,11 +2080,13 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
 		/* release the reordered frame back to stack */
 		memcpy(&status, tid_agg_rx->reorder_buf[index]->cb,
 			sizeof(status));
+		sband = local->hw.wiphy->bands[status.band];
+		rate = &sband->bitrates[status.rate_idx];
 		pkt_load = ieee80211_rx_load_stats(local,
 					tid_agg_rx->reorder_buf[index],
-					&status);
+					&status, rate);
 		__ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index],
-						&status, pkt_load);
+					     &status, pkt_load, rate);
 		tid_agg_rx->stored_mpdu_num--;
 		tid_agg_rx->reorder_buf[index] = NULL;
 		tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);
@@ -1973,11 +2121,12 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
 
 	qc = skb->data + ieee80211_get_hdrlen(fc) - QOS_CONTROL_LEN;
 	tid = qc[0] & QOS_CONTROL_TID_MASK;
-	tid_agg_rx = &(sta->ampdu_mlme.tid_rx[tid]);
 
-	if (tid_agg_rx->state != HT_AGG_STATE_OPERATIONAL)
+	if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_OPERATIONAL)
 		goto end_reorder;
 
+	tid_agg_rx = sta->ampdu_mlme.tid_rx[tid];
+
 	/* null data frames are excluded */
 	if (unlikely(fc & IEEE80211_STYPE_NULLFUNC))
 		goto end_reorder;
@@ -1994,7 +2143,7 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
 	/* if this mpdu is fragmented - terminate rx aggregation session */
 	sc = le16_to_cpu(hdr->seq_ctrl);
 	if (sc & IEEE80211_SCTL_FRAG) {
-		ieee80211_sta_stop_rx_ba_session(sta->dev, sta->addr,
+		ieee80211_sta_stop_rx_ba_session(sta->sdata->dev, sta->addr,
 			tid, 0, WLAN_REASON_QSTA_REQUIRE_SETUP);
 		ret = 1;
 		goto end_reorder;
@@ -2004,9 +2153,7 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
 	mpdu_seq_num = (sc & IEEE80211_SCTL_SEQ) >> 4;
 	ret = ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb,
 						mpdu_seq_num, 0);
-end_reorder:
-	if (sta)
-		sta_info_put(sta);
+ end_reorder:
 	return ret;
 }
 
@@ -2019,6 +2166,25 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	u32 pkt_load;
+	struct ieee80211_rate *rate = NULL;
+	struct ieee80211_supported_band *sband;
+
+	if (status->band < 0 ||
+	    status->band > IEEE80211_NUM_BANDS) {
+		WARN_ON(1);
+		return;
+	}
+
+	sband = local->hw.wiphy->bands[status->band];
+
+	if (!sband ||
+	    status->rate_idx < 0 ||
+	    status->rate_idx >= sband->n_bitrates) {
+		WARN_ON(1);
+		return;
+	}
+
+	rate = &sband->bitrates[status->rate_idx];
 
 	/*
 	 * key references and virtual interfaces are protected using RCU
@@ -2033,17 +2199,17 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
 	 * if it was previously present.
 	 * Also, frames with less than 16 bytes are dropped.
 	 */
-	skb = ieee80211_rx_monitor(local, skb, status);
+	skb = ieee80211_rx_monitor(local, skb, status, rate);
 	if (!skb) {
 		rcu_read_unlock();
 		return;
 	}
 
-	pkt_load = ieee80211_rx_load_stats(local, skb, status);
+	pkt_load = ieee80211_rx_load_stats(local, skb, status, rate);
 	local->channel_use_raw += pkt_load;
 
 	if (!ieee80211_rx_reorder_ampdu(local, skb))
-		__ieee80211_rx_handle_packet(hw, skb, status, pkt_load);
+		__ieee80211_rx_handle_packet(hw, skb, status, pkt_load, rate);
 
 	rcu_read_unlock();
 }
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 1f74bd296357..7d4fe4a52929 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -15,21 +15,57 @@
 #include <linux/skbuff.h>
 #include <linux/if_arp.h>
 #include <linux/timer.h>
+#include <linux/rtnetlink.h>
 
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
-#include "ieee80211_rate.h"
+#include "rate.h"
 #include "sta_info.h"
 #include "debugfs_sta.h"
+#include "mesh.h"
 
-/* Caller must hold local->sta_lock */
-static void sta_info_hash_add(struct ieee80211_local *local,
-			      struct sta_info *sta)
-{
-	sta->hnext = local->sta_hash[STA_HASH(sta->addr)];
-	local->sta_hash[STA_HASH(sta->addr)] = sta;
-}
-
+/**
+ * DOC: STA information lifetime rules
+ *
+ * STA info structures (&struct sta_info) are managed in a hash table
+ * for faster lookup and a list for iteration. They are managed using
+ * RCU, i.e. access to the list and hash table is protected by RCU.
+ *
+ * Upon allocating a STA info structure with sta_info_alloc(), the caller owns
+ * that structure. It must then either destroy it using sta_info_destroy()
+ * (which is pretty useless) or insert it into the hash table using
+ * sta_info_insert() which demotes the reference from ownership to a regular
+ * RCU-protected reference; if the function is called without protection by an
+ * RCU critical section the reference is instantly invalidated. Note that the
+ * caller may not do much with the STA info before inserting it, in particular,
+ * it may not start any mesh peer link management or add encryption keys.
+ *
+ * When the insertion fails (sta_info_insert()) returns non-zero), the
+ * structure will have been freed by sta_info_insert()!
+ *
+ * Because there are debugfs entries for each station, and adding those
+ * must be able to sleep, it is also possible to "pin" a station entry,
+ * that means it can be removed from the hash table but not be freed.
+ * See the comment in __sta_info_unlink() for more information, this is
+ * an internal capability only.
+ *
+ * In order to remove a STA info structure, the caller needs to first
+ * unlink it (sta_info_unlink()) from the list and hash tables and
+ * then destroy it; sta_info_destroy() will wait for an RCU grace period
+ * to elapse before actually freeing it. Due to the pinning and the
+ * possibility of multiple callers trying to remove the same STA info at
+ * the same time, sta_info_unlink() can clear the STA info pointer it is
+ * passed to indicate that the STA info is owned by somebody else now.
+ *
+ * If sta_info_unlink() did not clear the pointer then the caller owns
+ * the STA info structure now and is responsible of destroying it with
+ * a call to sta_info_destroy().
+ *
+ * In all other cases, there is no concept of ownership on a STA entry,
+ * each structure is owned by the global hash table/list until it is
+ * removed. All users of the structure need to be RCU protected so that
+ * the structure won't be freed before they are done using it.
+ */
 
 /* Caller must hold local->sta_lock */
 static int sta_info_hash_del(struct ieee80211_local *local,
@@ -41,237 +77,439 @@ static int sta_info_hash_del(struct ieee80211_local *local,
 	if (!s)
 		return -ENOENT;
 	if (s == sta) {
-		local->sta_hash[STA_HASH(sta->addr)] = s->hnext;
+		rcu_assign_pointer(local->sta_hash[STA_HASH(sta->addr)],
+				   s->hnext);
 		return 0;
 	}
 
 	while (s->hnext && s->hnext != sta)
 		s = s->hnext;
 	if (s->hnext) {
-		s->hnext = sta->hnext;
+		rcu_assign_pointer(s->hnext, sta->hnext);
 		return 0;
 	}
 
 	return -ENOENT;
 }
 
-struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr)
+/* protected by RCU */
+static struct sta_info *__sta_info_find(struct ieee80211_local *local,
+					u8 *addr)
 {
 	struct sta_info *sta;
 
-	read_lock_bh(&local->sta_lock);
-	sta = local->sta_hash[STA_HASH(addr)];
+	sta = rcu_dereference(local->sta_hash[STA_HASH(addr)]);
 	while (sta) {
-		if (memcmp(sta->addr, addr, ETH_ALEN) == 0) {
-			__sta_info_get(sta);
+		if (compare_ether_addr(sta->addr, addr) == 0)
 			break;
-		}
-		sta = sta->hnext;
+		sta = rcu_dereference(sta->hnext);
 	}
-	read_unlock_bh(&local->sta_lock);
-
 	return sta;
 }
+
+struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr)
+{
+	return __sta_info_find(local, addr);
+}
 EXPORT_SYMBOL(sta_info_get);
 
-int sta_info_min_txrate_get(struct ieee80211_local *local)
+struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx,
+				     struct net_device *dev)
 {
 	struct sta_info *sta;
-	struct ieee80211_hw_mode *mode;
-	int min_txrate = 9999999;
-	int i;
-
-	read_lock_bh(&local->sta_lock);
-	mode = local->oper_hw_mode;
-	for (i = 0; i < STA_HASH_SIZE; i++) {
-		sta = local->sta_hash[i];
-		while (sta) {
-			if (sta->txrate < min_txrate)
-				min_txrate = sta->txrate;
-			sta = sta->hnext;
+	int i = 0;
+
+	list_for_each_entry_rcu(sta, &local->sta_list, list) {
+		if (dev && dev != sta->sdata->dev)
+			continue;
+		if (i < idx) {
+			++i;
+			continue;
 		}
+		return sta;
 	}
-	read_unlock_bh(&local->sta_lock);
-	if (min_txrate == 9999999)
-		min_txrate = 0;
 
-	return mode->rates[min_txrate].rate;
+	return NULL;
 }
 
+/**
+ * __sta_info_free - internal STA free helper
+ *
+ * @sta: STA info to free
+ *
+ * This function must undo everything done by sta_info_alloc()
+ * that may happen before sta_info_insert().
+ */
+static void __sta_info_free(struct ieee80211_local *local,
+			    struct sta_info *sta)
+{
+	DECLARE_MAC_BUF(mbuf);
+
+	rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv);
+	rate_control_put(sta->rate_ctrl);
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+	printk(KERN_DEBUG "%s: Destroyed STA %s\n",
+	       wiphy_name(local->hw.wiphy), print_mac(mbuf, sta->addr));
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 
-static void sta_info_release(struct kref *kref)
+	kfree(sta);
+}
+
+void sta_info_destroy(struct sta_info *sta)
 {
-	struct sta_info *sta = container_of(kref, struct sta_info, kref);
-	struct ieee80211_local *local = sta->local;
+	struct ieee80211_local *local;
 	struct sk_buff *skb;
 	int i;
 
-	/* free sta structure; it has already been removed from
-	 * hash table etc. external structures. Make sure that all
-	 * buffered frames are release (one might have been added
-	 * after sta_info_free() was called). */
+	might_sleep();
+
+	if (!sta)
+		return;
+
+	local = sta->local;
+
+	rate_control_remove_sta_debugfs(sta);
+	ieee80211_sta_debugfs_remove(sta);
+
+#ifdef CONFIG_MAC80211_MESH
+	if (ieee80211_vif_is_mesh(&sta->sdata->vif))
+		mesh_plink_deactivate(sta);
+#endif
+
+	/*
+	 * We have only unlinked the key, and actually destroying it
+	 * may mean it is removed from hardware which requires that
+	 * the key->sta pointer is still valid, so flush the key todo
+	 * list here.
+	 *
+	 * ieee80211_key_todo() will synchronize_rcu() so after this
+	 * nothing can reference this sta struct any more.
+	 */
+	ieee80211_key_todo();
+
+#ifdef CONFIG_MAC80211_MESH
+	if (ieee80211_vif_is_mesh(&sta->sdata->vif))
+		del_timer_sync(&sta->plink_timer);
+#endif
+
 	while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
 		local->total_ps_buffered--;
 		dev_kfree_skb_any(skb);
 	}
-	while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
+
+	while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL)
 		dev_kfree_skb_any(skb);
+
+	for (i = 0; i <  STA_TID_NUM; i++) {
+		spin_lock_bh(&sta->ampdu_mlme.ampdu_rx);
+		if (sta->ampdu_mlme.tid_rx[i])
+		  del_timer_sync(&sta->ampdu_mlme.tid_rx[i]->session_timer);
+		spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
+		spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
+		if (sta->ampdu_mlme.tid_tx[i])
+		  del_timer_sync(&sta->ampdu_mlme.tid_tx[i]->addba_resp_timer);
+		spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
 	}
-	for (i = 0; i <  STA_TID_NUM; i++)
-		del_timer_sync(&sta->ampdu_mlme.tid_rx[i].session_timer);
-	rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv);
-	rate_control_put(sta->rate_ctrl);
-	kfree(sta);
+
+	__sta_info_free(local, sta);
 }
 
 
-void sta_info_put(struct sta_info *sta)
+/* Caller must hold local->sta_lock */
+static void sta_info_hash_add(struct ieee80211_local *local,
+			      struct sta_info *sta)
 {
-	kref_put(&sta->kref, sta_info_release);
+	sta->hnext = local->sta_hash[STA_HASH(sta->addr)];
+	rcu_assign_pointer(local->sta_hash[STA_HASH(sta->addr)], sta);
 }
-EXPORT_SYMBOL(sta_info_put);
 
-
-struct sta_info * sta_info_add(struct ieee80211_local *local,
-			       struct net_device *dev, u8 *addr, gfp_t gfp)
+struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
+				u8 *addr, gfp_t gfp)
 {
+	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta;
 	int i;
-	DECLARE_MAC_BUF(mac);
+	DECLARE_MAC_BUF(mbuf);
 
 	sta = kzalloc(sizeof(*sta), gfp);
 	if (!sta)
 		return NULL;
 
-	kref_init(&sta->kref);
+	memcpy(sta->addr, addr, ETH_ALEN);
+	sta->local = local;
+	sta->sdata = sdata;
 
 	sta->rate_ctrl = rate_control_get(local->rate_ctrl);
-	sta->rate_ctrl_priv = rate_control_alloc_sta(sta->rate_ctrl, gfp);
+	sta->rate_ctrl_priv = rate_control_alloc_sta(sta->rate_ctrl,
+						     gfp);
 	if (!sta->rate_ctrl_priv) {
 		rate_control_put(sta->rate_ctrl);
 		kfree(sta);
 		return NULL;
 	}
 
-	memcpy(sta->addr, addr, ETH_ALEN);
-	sta->local = local;
-	sta->dev = dev;
 	spin_lock_init(&sta->ampdu_mlme.ampdu_rx);
+	spin_lock_init(&sta->ampdu_mlme.ampdu_tx);
 	for (i = 0; i < STA_TID_NUM; i++) {
 		/* timer_to_tid must be initialized with identity mapping to
 		 * enable session_timer's data differentiation. refer to
 		 * sta_rx_agg_session_timer_expired for useage */
 		sta->timer_to_tid[i] = i;
-		/* rx timers */
-		sta->ampdu_mlme.tid_rx[i].session_timer.function =
-			sta_rx_agg_session_timer_expired;
-		sta->ampdu_mlme.tid_rx[i].session_timer.data =
-			(unsigned long)&sta->timer_to_tid[i];
-		init_timer(&sta->ampdu_mlme.tid_rx[i].session_timer);
+		/* tid to tx queue: initialize according to HW (0 is valid) */
+		sta->tid_to_tx_q[i] = local->hw.queues;
+		/* rx */
+		sta->ampdu_mlme.tid_state_rx[i] = HT_AGG_STATE_IDLE;
+		sta->ampdu_mlme.tid_rx[i] = NULL;
+		/* tx */
+		sta->ampdu_mlme.tid_state_tx[i] = HT_AGG_STATE_IDLE;
+		sta->ampdu_mlme.tid_tx[i] = NULL;
+		sta->ampdu_mlme.addba_req_num[i] = 0;
 	}
 	skb_queue_head_init(&sta->ps_tx_buf);
 	skb_queue_head_init(&sta->tx_filtered);
-	__sta_info_get(sta);	/* sta used by caller, decremented by
-				 * sta_info_put() */
-	write_lock_bh(&local->sta_lock);
+
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+	printk(KERN_DEBUG "%s: Allocated STA %s\n",
+	       wiphy_name(local->hw.wiphy), print_mac(mbuf, sta->addr));
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+
+#ifdef CONFIG_MAC80211_MESH
+	sta->plink_state = PLINK_LISTEN;
+	spin_lock_init(&sta->plink_lock);
+	init_timer(&sta->plink_timer);
+#endif
+
+	return sta;
+}
+
+int sta_info_insert(struct sta_info *sta)
+{
+	struct ieee80211_local *local = sta->local;
+	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	unsigned long flags;
+	int err = 0;
+	DECLARE_MAC_BUF(mac);
+
+	/*
+	 * Can't be a WARN_ON because it can be triggered through a race:
+	 * something inserts a STA (on one CPU) without holding the RTNL
+	 * and another CPU turns off the net device.
+	 */
+	if (unlikely(!netif_running(sdata->dev))) {
+		err = -ENETDOWN;
+		goto out_free;
+	}
+
+	if (WARN_ON(compare_ether_addr(sta->addr, sdata->dev->dev_addr) == 0 ||
+	            is_multicast_ether_addr(sta->addr))) {
+		err = -EINVAL;
+		goto out_free;
+	}
+
+	spin_lock_irqsave(&local->sta_lock, flags);
+	/* check if STA exists already */
+	if (__sta_info_find(local, sta->addr)) {
+		spin_unlock_irqrestore(&local->sta_lock, flags);
+		err = -EEXIST;
+		goto out_free;
+	}
 	list_add(&sta->list, &local->sta_list);
 	local->num_sta++;
 	sta_info_hash_add(local, sta);
-	if (local->ops->sta_notify) {
-		struct ieee80211_sub_if_data *sdata;
 
-		sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	/* notify driver */
+	if (local->ops->sta_notify) {
 		if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
 			sdata = sdata->u.vlan.ap;
 
 		local->ops->sta_notify(local_to_hw(local), &sdata->vif,
-				       STA_NOTIFY_ADD, addr);
+				       STA_NOTIFY_ADD, sta->addr);
 	}
-	write_unlock_bh(&local->sta_lock);
 
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	printk(KERN_DEBUG "%s: Added STA %s\n",
-	       wiphy_name(local->hw.wiphy), print_mac(mac, addr));
+	printk(KERN_DEBUG "%s: Inserted STA %s\n",
+	       wiphy_name(local->hw.wiphy), print_mac(mac, sta->addr));
 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 
+	spin_unlock_irqrestore(&local->sta_lock, flags);
+
 #ifdef CONFIG_MAC80211_DEBUGFS
-	/* debugfs entry adding might sleep, so schedule process
+	/*
+	 * Debugfs entry adding might sleep, so schedule process
 	 * context task for adding entry for STAs that do not yet
-	 * have one. */
-	queue_work(local->hw.workqueue, &local->sta_debugfs_add);
+	 * have one.
+	 * NOTE: due to auto-freeing semantics this may only be done
+	 *       if the insertion is successful!
+	 */
+	schedule_work(&local->sta_debugfs_add);
 #endif
 
-	return sta;
+	if (ieee80211_vif_is_mesh(&sdata->vif))
+		mesh_accept_plinks_update(sdata);
+
+	return 0;
+ out_free:
+	BUG_ON(!err);
+	__sta_info_free(local, sta);
+	return err;
 }
 
-/* Caller must hold local->sta_lock */
-void sta_info_remove(struct sta_info *sta)
+static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
 {
-	struct ieee80211_local *local = sta->local;
-	struct ieee80211_sub_if_data *sdata;
+	/*
+	 * This format has been mandated by the IEEE specifications,
+	 * so this line may not be changed to use the __set_bit() format.
+	 */
+	bss->tim[aid / 8] |= (1 << (aid % 8));
+}
 
-	/* don't do anything if we've been removed already */
-	if (sta_info_hash_del(local, sta))
-		return;
+static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
+{
+	/*
+	 * This format has been mandated by the IEEE specifications,
+	 * so this line may not be changed to use the __clear_bit() format.
+	 */
+	bss->tim[aid / 8] &= ~(1 << (aid % 8));
+}
 
-	list_del(&sta->list);
-	sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
-	if (sta->flags & WLAN_STA_PS) {
-		sta->flags &= ~WLAN_STA_PS;
-		if (sdata->bss)
-			atomic_dec(&sdata->bss->num_sta_ps);
+static void __sta_info_set_tim_bit(struct ieee80211_if_ap *bss,
+				   struct sta_info *sta)
+{
+	if (bss)
+		__bss_tim_set(bss, sta->aid);
+	if (sta->local->ops->set_tim) {
+		sta->local->tim_in_locked_section = true;
+		sta->local->ops->set_tim(local_to_hw(sta->local), sta->aid, 1);
+		sta->local->tim_in_locked_section = false;
 	}
-	local->num_sta--;
-	sta_info_remove_aid_ptr(sta);
+}
+
+void sta_info_set_tim_bit(struct sta_info *sta)
+{
+	unsigned long flags;
 
+	spin_lock_irqsave(&sta->local->sta_lock, flags);
+	__sta_info_set_tim_bit(sta->sdata->bss, sta);
+	spin_unlock_irqrestore(&sta->local->sta_lock, flags);
 }
 
-void sta_info_free(struct sta_info *sta)
+static void __sta_info_clear_tim_bit(struct ieee80211_if_ap *bss,
+				     struct sta_info *sta)
 {
-	struct sk_buff *skb;
-	struct ieee80211_local *local = sta->local;
-	DECLARE_MAC_BUF(mac);
+	if (bss)
+		__bss_tim_clear(bss, sta->aid);
+	if (sta->local->ops->set_tim) {
+		sta->local->tim_in_locked_section = true;
+		sta->local->ops->set_tim(local_to_hw(sta->local), sta->aid, 0);
+		sta->local->tim_in_locked_section = false;
+	}
+}
 
-	might_sleep();
+void sta_info_clear_tim_bit(struct sta_info *sta)
+{
+	unsigned long flags;
 
-	write_lock_bh(&local->sta_lock);
-	sta_info_remove(sta);
-	write_unlock_bh(&local->sta_lock);
+	spin_lock_irqsave(&sta->local->sta_lock, flags);
+	__sta_info_clear_tim_bit(sta->sdata->bss, sta);
+	spin_unlock_irqrestore(&sta->local->sta_lock, flags);
+}
 
-	while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
-		local->total_ps_buffered--;
-		dev_kfree_skb(skb);
-	}
-	while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
-		dev_kfree_skb(skb);
+void __sta_info_unlink(struct sta_info **sta)
+{
+	struct ieee80211_local *local = (*sta)->local;
+	struct ieee80211_sub_if_data *sdata = (*sta)->sdata;
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+	DECLARE_MAC_BUF(mbuf);
+#endif
+	/*
+	 * pull caller's reference if we're already gone.
+	 */
+	if (sta_info_hash_del(local, *sta)) {
+		*sta = NULL;
+		return;
 	}
 
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	printk(KERN_DEBUG "%s: Removed STA %s\n",
-	       wiphy_name(local->hw.wiphy), print_mac(mac, sta->addr));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+	if ((*sta)->key) {
+		ieee80211_key_free((*sta)->key);
+		WARN_ON((*sta)->key);
+	}
 
-	ieee80211_key_free(sta->key);
-	sta->key = NULL;
+	list_del(&(*sta)->list);
 
-	if (local->ops->sta_notify) {
-		struct ieee80211_sub_if_data *sdata;
+	if ((*sta)->flags & WLAN_STA_PS) {
+		(*sta)->flags &= ~WLAN_STA_PS;
+		if (sdata->bss)
+			atomic_dec(&sdata->bss->num_sta_ps);
+		__sta_info_clear_tim_bit(sdata->bss, *sta);
+	}
 
-		sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+	local->num_sta--;
 
+	if (local->ops->sta_notify) {
 		if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
 			sdata = sdata->u.vlan.ap;
 
 		local->ops->sta_notify(local_to_hw(local), &sdata->vif,
-				       STA_NOTIFY_REMOVE, sta->addr);
+				       STA_NOTIFY_REMOVE, (*sta)->addr);
 	}
 
-	rate_control_remove_sta_debugfs(sta);
-	ieee80211_sta_debugfs_remove(sta);
+	if (ieee80211_vif_is_mesh(&sdata->vif)) {
+		mesh_accept_plinks_update(sdata);
+#ifdef CONFIG_MAC80211_MESH
+		del_timer(&(*sta)->plink_timer);
+#endif
+	}
 
-	sta_info_put(sta);
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+	printk(KERN_DEBUG "%s: Removed STA %s\n",
+	       wiphy_name(local->hw.wiphy), print_mac(mbuf, (*sta)->addr));
+#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+
+	/*
+	 * Finally, pull caller's reference if the STA is pinned by the
+	 * task that is adding the debugfs entries. In that case, we
+	 * leave the STA "to be freed".
+	 *
+	 * The rules are not trivial, but not too complex either:
+	 *  (1) pin_status is only modified under the sta_lock
+	 *  (2) STAs may only be pinned under the RTNL so that
+	 *	sta_info_flush() is guaranteed to actually destroy
+	 *	all STAs that are active for a given interface, this
+	 *	is required for correctness because otherwise we
+	 *	could notify a driver that an interface is going
+	 *	away and only after that (!) notify it about a STA
+	 *	on that interface going away.
+	 *  (3) sta_info_debugfs_add_work() will set the status
+	 *	to PINNED when it found an item that needs a new
+	 *	debugfs directory created. In that case, that item
+	 *	must not be freed although all *RCU* users are done
+	 *	with it. Hence, we tell the caller of _unlink()
+	 *	that the item is already gone (as can happen when
+	 *	two tasks try to unlink/destroy at the same time)
+	 *  (4) We set the pin_status to DESTROY here when we
+	 *	find such an item.
+	 *  (5) sta_info_debugfs_add_work() will reset the pin_status
+	 *	from PINNED to NORMAL when it is done with the item,
+	 *	but will check for DESTROY before resetting it in
+	 *	which case it will free the item.
+	 */
+	if ((*sta)->pin_status == STA_INFO_PIN_STAT_PINNED) {
+		(*sta)->pin_status = STA_INFO_PIN_STAT_DESTROY;
+		*sta = NULL;
+		return;
+	}
 }
 
+void sta_info_unlink(struct sta_info **sta)
+{
+	struct ieee80211_local *local = (*sta)->local;
+	unsigned long flags;
+
+	spin_lock_irqsave(&local->sta_lock, flags);
+	__sta_info_unlink(sta);
+	spin_unlock_irqrestore(&local->sta_lock, flags);
+}
 
 static inline int sta_info_buffer_expired(struct ieee80211_local *local,
 					  struct sta_info *sta,
@@ -299,6 +537,7 @@ static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
 {
 	unsigned long flags;
 	struct sk_buff *skb;
+	struct ieee80211_sub_if_data *sdata;
 	DECLARE_MAC_BUF(mac);
 
 	if (skb_queue_empty(&sta->ps_tx_buf))
@@ -307,21 +546,23 @@ static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
 	for (;;) {
 		spin_lock_irqsave(&sta->ps_tx_buf.lock, flags);
 		skb = skb_peek(&sta->ps_tx_buf);
-		if (sta_info_buffer_expired(local, sta, skb)) {
+		if (sta_info_buffer_expired(local, sta, skb))
 			skb = __skb_dequeue(&sta->ps_tx_buf);
-			if (skb_queue_empty(&sta->ps_tx_buf))
-				sta->flags &= ~WLAN_STA_TIM;
-		} else
+		else
 			skb = NULL;
 		spin_unlock_irqrestore(&sta->ps_tx_buf.lock, flags);
 
-		if (skb) {
-			local->total_ps_buffered--;
-			printk(KERN_DEBUG "Buffered frame expired (STA "
-			       "%s)\n", print_mac(mac, sta->addr));
-			dev_kfree_skb(skb);
-		} else
+		if (!skb)
 			break;
+
+		sdata = sta->sdata;
+		local->total_ps_buffered--;
+		printk(KERN_DEBUG "Buffered frame expired (STA "
+		       "%s)\n", print_mac(mac, sta->addr));
+		dev_kfree_skb(skb);
+
+		if (skb_queue_empty(&sta->ps_tx_buf))
+			sta_info_clear_tim_bit(sta);
 	}
 }
 
@@ -331,13 +572,10 @@ static void sta_info_cleanup(unsigned long data)
 	struct ieee80211_local *local = (struct ieee80211_local *) data;
 	struct sta_info *sta;
 
-	read_lock_bh(&local->sta_lock);
-	list_for_each_entry(sta, &local->sta_list, list) {
-		__sta_info_get(sta);
+	rcu_read_lock();
+	list_for_each_entry_rcu(sta, &local->sta_list, list)
 		sta_info_cleanup_expire_buffered(local, sta);
-		sta_info_put(sta);
-	}
-	read_unlock_bh(&local->sta_lock);
+	rcu_read_unlock();
 
 	local->sta_cleanup.expires =
 		round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL);
@@ -345,38 +583,106 @@ static void sta_info_cleanup(unsigned long data)
 }
 
 #ifdef CONFIG_MAC80211_DEBUGFS
-static void sta_info_debugfs_add_task(struct work_struct *work)
+/*
+ * See comment in __sta_info_unlink,
+ * caller must hold local->sta_lock.
+ */
+static void __sta_info_pin(struct sta_info *sta)
+{
+	WARN_ON(sta->pin_status != STA_INFO_PIN_STAT_NORMAL);
+	sta->pin_status = STA_INFO_PIN_STAT_PINNED;
+}
+
+/*
+ * See comment in __sta_info_unlink, returns sta if it
+ * needs to be destroyed.
+ */
+static struct sta_info *__sta_info_unpin(struct sta_info *sta)
+{
+	struct sta_info *ret = NULL;
+	unsigned long flags;
+
+	spin_lock_irqsave(&sta->local->sta_lock, flags);
+	WARN_ON(sta->pin_status != STA_INFO_PIN_STAT_DESTROY &&
+		sta->pin_status != STA_INFO_PIN_STAT_PINNED);
+	if (sta->pin_status == STA_INFO_PIN_STAT_DESTROY)
+		ret = sta;
+	sta->pin_status = STA_INFO_PIN_STAT_NORMAL;
+	spin_unlock_irqrestore(&sta->local->sta_lock, flags);
+
+	return ret;
+}
+
+static void sta_info_debugfs_add_work(struct work_struct *work)
 {
 	struct ieee80211_local *local =
 		container_of(work, struct ieee80211_local, sta_debugfs_add);
 	struct sta_info *sta, *tmp;
+	unsigned long flags;
 
+	/* We need to keep the RTNL across the whole pinned status. */
+	rtnl_lock();
 	while (1) {
 		sta = NULL;
-		read_lock_bh(&local->sta_lock);
+
+		spin_lock_irqsave(&local->sta_lock, flags);
 		list_for_each_entry(tmp, &local->sta_list, list) {
 			if (!tmp->debugfs.dir) {
 				sta = tmp;
-				__sta_info_get(sta);
+				__sta_info_pin(sta);
 				break;
 			}
 		}
-		read_unlock_bh(&local->sta_lock);
+		spin_unlock_irqrestore(&local->sta_lock, flags);
 
 		if (!sta)
 			break;
 
 		ieee80211_sta_debugfs_add(sta);
 		rate_control_add_sta_debugfs(sta);
-		sta_info_put(sta);
+
+		sta = __sta_info_unpin(sta);
+		sta_info_destroy(sta);
 	}
+	rtnl_unlock();
 }
 #endif
 
+static void __ieee80211_run_pending_flush(struct ieee80211_local *local)
+{
+	struct sta_info *sta;
+	unsigned long flags;
+
+	ASSERT_RTNL();
+
+	spin_lock_irqsave(&local->sta_lock, flags);
+	while (!list_empty(&local->sta_flush_list)) {
+		sta = list_first_entry(&local->sta_flush_list,
+				       struct sta_info, list);
+		list_del(&sta->list);
+		spin_unlock_irqrestore(&local->sta_lock, flags);
+		sta_info_destroy(sta);
+		spin_lock_irqsave(&local->sta_lock, flags);
+	}
+	spin_unlock_irqrestore(&local->sta_lock, flags);
+}
+
+static void ieee80211_sta_flush_work(struct work_struct *work)
+{
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local, sta_flush_work);
+
+	rtnl_lock();
+	__ieee80211_run_pending_flush(local);
+	rtnl_unlock();
+}
+
 void sta_info_init(struct ieee80211_local *local)
 {
-	rwlock_init(&local->sta_lock);
+	spin_lock_init(&local->sta_lock);
 	INIT_LIST_HEAD(&local->sta_list);
+	INIT_LIST_HEAD(&local->sta_flush_list);
+	INIT_WORK(&local->sta_flush_work, ieee80211_sta_flush_work);
 
 	setup_timer(&local->sta_cleanup, sta_info_cleanup,
 		    (unsigned long)local);
@@ -384,7 +690,7 @@ void sta_info_init(struct ieee80211_local *local)
 		round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL);
 
 #ifdef CONFIG_MAC80211_DEBUGFS
-	INIT_WORK(&local->sta_debugfs_add, sta_info_debugfs_add_task);
+	INIT_WORK(&local->sta_debugfs_add, sta_info_debugfs_add_work);
 #endif
 }
 
@@ -397,47 +703,89 @@ int sta_info_start(struct ieee80211_local *local)
 void sta_info_stop(struct ieee80211_local *local)
 {
 	del_timer(&local->sta_cleanup);
+	cancel_work_sync(&local->sta_flush_work);
+#ifdef CONFIG_MAC80211_DEBUGFS
+	/*
+	 * Make sure the debugfs adding work isn't pending after this
+	 * because we're about to be destroyed. It doesn't matter
+	 * whether it ran or not since we're going to flush all STAs
+	 * anyway.
+	 */
+	cancel_work_sync(&local->sta_debugfs_add);
+#endif
+
+	rtnl_lock();
 	sta_info_flush(local, NULL);
+	__ieee80211_run_pending_flush(local);
+	rtnl_unlock();
 }
 
-void sta_info_remove_aid_ptr(struct sta_info *sta)
+/**
+ * sta_info_flush - flush matching STA entries from the STA table
+ *
+ * Returns the number of removed STA entries.
+ *
+ * @local: local interface data
+ * @sdata: matching rule for the net device (sta->dev) or %NULL to match all STAs
+ */
+int sta_info_flush(struct ieee80211_local *local,
+		    struct ieee80211_sub_if_data *sdata)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct sta_info *sta, *tmp;
+	LIST_HEAD(tmp_list);
+	int ret = 0;
+	unsigned long flags;
 
-	if (sta->aid <= 0)
-		return;
+	might_sleep();
+	ASSERT_RTNL();
+
+	spin_lock_irqsave(&local->sta_lock, flags);
+	list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
+		if (!sdata || sdata == sta->sdata) {
+			__sta_info_unlink(&sta);
+			if (sta) {
+				list_add_tail(&sta->list, &tmp_list);
+				ret++;
+			}
+		}
+	}
+	spin_unlock_irqrestore(&local->sta_lock, flags);
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+	list_for_each_entry_safe(sta, tmp, &tmp_list, list)
+		sta_info_destroy(sta);
 
-	if (sdata->local->ops->set_tim)
-		sdata->local->ops->set_tim(local_to_hw(sdata->local),
-					  sta->aid, 0);
-	if (sdata->bss)
-		__bss_tim_clear(sdata->bss, sta->aid);
+	return ret;
 }
 
-
 /**
- * sta_info_flush - flush matching STA entries from the STA table
- * @local: local interface data
- * @dev: matching rule for the net device (sta->dev) or %NULL to match all STAs
+ * sta_info_flush_delayed - flush matching STA entries from the STA table
+ *
+ * This function unlinks all stations for a given interface and queues
+ * them for freeing. Note that the workqueue function scheduled here has
+ * to run before any new keys can be added to the system to avoid set_key()
+ * callback ordering issues.
+ *
+ * @sdata: the interface
  */
-void sta_info_flush(struct ieee80211_local *local, struct net_device *dev)
+void sta_info_flush_delayed(struct ieee80211_sub_if_data *sdata)
 {
+	struct ieee80211_local *local = sdata->local;
 	struct sta_info *sta, *tmp;
-	LIST_HEAD(tmp_list);
-
-	write_lock_bh(&local->sta_lock);
-	list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
-		if (!dev || dev == sta->dev) {
-			__sta_info_get(sta);
-			sta_info_remove(sta);
-			list_add_tail(&sta->list, &tmp_list);
+	unsigned long flags;
+	bool work = false;
+
+	spin_lock_irqsave(&local->sta_lock, flags);
+	list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
+		if (sdata == sta->sdata) {
+			__sta_info_unlink(&sta);
+			if (sta) {
+				list_add_tail(&sta->list,
+					      &local->sta_flush_list);
+				work = true;
+			}
 		}
-	write_unlock_bh(&local->sta_lock);
-
-	list_for_each_entry_safe(sta, tmp, &tmp_list, list) {
-		sta_info_free(sta);
-		sta_info_put(sta);
 	}
+	if (work)
+		schedule_work(&local->sta_flush_work);
+	spin_unlock_irqrestore(&local->sta_lock, flags);
 }
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 96fe3ed95038..f8c95bc9659c 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -12,160 +12,293 @@
 #include <linux/list.h>
 #include <linux/types.h>
 #include <linux/if_ether.h>
-#include <linux/kref.h>
-#include "ieee80211_key.h"
-
-/* Stations flags (struct sta_info::flags) */
-#define WLAN_STA_AUTH BIT(0)
-#define WLAN_STA_ASSOC BIT(1)
-#define WLAN_STA_PS BIT(2)
-#define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */
-#define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */
-#define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is
-				    * controlling whether STA is authorized to
-				    * send and receive non-IEEE 802.1X frames
-				    */
-#define WLAN_STA_SHORT_PREAMBLE BIT(7)
-/* whether this is an AP that we are associated with as a client */
-#define WLAN_STA_ASSOC_AP BIT(8)
-#define WLAN_STA_WME BIT(9)
-#define WLAN_STA_WDS BIT(27)
+#include "key.h"
+
+/**
+ * enum ieee80211_sta_info_flags - Stations flags
+ *
+ * These flags are used with &struct sta_info's @flags member.
+ *
+ * @WLAN_STA_AUTH: Station is authenticated.
+ * @WLAN_STA_ASSOC: Station is associated.
+ * @WLAN_STA_PS: Station is in power-save mode
+ * @WLAN_STA_AUTHORIZED: Station is authorized to send/receive traffic.
+ *	This bit is always checked so needs to be enabled for all stations
+ *	when virtual port control is not in use.
+ * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble
+ *	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_PSPOLL: Station has just PS-polled us.
+ * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the
+ *	IEEE80211_TXCTL_CLEAR_PS_FILT control flag) when the next
+ *	frame to this station is transmitted.
+ */
+enum ieee80211_sta_info_flags {
+	WLAN_STA_AUTH		= 1<<0,
+	WLAN_STA_ASSOC		= 1<<1,
+	WLAN_STA_PS		= 1<<2,
+	WLAN_STA_AUTHORIZED	= 1<<3,
+	WLAN_STA_SHORT_PREAMBLE	= 1<<4,
+	WLAN_STA_ASSOC_AP	= 1<<5,
+	WLAN_STA_WME		= 1<<6,
+	WLAN_STA_WDS		= 1<<7,
+	WLAN_STA_PSPOLL		= 1<<8,
+	WLAN_STA_CLEAR_PS_FILT	= 1<<9,
+};
 
 #define STA_TID_NUM 16
 #define ADDBA_RESP_INTERVAL HZ
+#define HT_AGG_MAX_RETRIES		(0x3)
 
 #define HT_AGG_STATE_INITIATOR_SHIFT	(4)
 
+#define HT_ADDBA_REQUESTED_MSK		BIT(0)
+#define HT_ADDBA_DRV_READY_MSK		BIT(1)
+#define HT_ADDBA_RECEIVED_MSK		BIT(2)
 #define HT_AGG_STATE_REQ_STOP_BA_MSK	BIT(3)
-
+#define HT_AGG_STATE_INITIATOR_MSK      BIT(HT_AGG_STATE_INITIATOR_SHIFT)
 #define HT_AGG_STATE_IDLE		(0x0)
-#define HT_AGG_STATE_OPERATIONAL	(0x7)
+#define HT_AGG_STATE_OPERATIONAL	(HT_ADDBA_REQUESTED_MSK |	\
+					 HT_ADDBA_DRV_READY_MSK |	\
+					 HT_ADDBA_RECEIVED_MSK)
+#define HT_AGG_STATE_DEBUGFS_CTL	BIT(7)
 
 /**
- * struct tid_ampdu_rx - TID aggregation information (Rx).
+ * struct tid_ampdu_tx - TID aggregation information (Tx).
  *
- * @state: TID's state in session state machine.
+ * @addba_resp_timer: timer for peer's response to addba request
+ * @ssn: Starting Sequence Number expected to be aggregated.
  * @dialog_token: dialog token for aggregation session
+ */
+struct tid_ampdu_tx {
+	struct timer_list addba_resp_timer;
+	u16 ssn;
+	u8 dialog_token;
+};
+
+/**
+ * struct tid_ampdu_rx - TID aggregation information (Rx).
+ *
+ * @reorder_buf: buffer to reorder incoming aggregated MPDUs
+ * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
+ * @head_seq_num: head sequence number in reordering buffer.
+ * @stored_mpdu_num: number of MPDUs in reordering buffer
  * @ssn: Starting Sequence Number expected to be aggregated.
  * @buf_size: buffer size for incoming A-MPDUs
  * @timeout: reset timer value.
- * @head_seq_num: head sequence number in reordering buffer.
- * @stored_mpdu_num: number of MPDUs in reordering buffer
- * @reorder_buf: buffer to reorder incoming aggregated MPDUs
- * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
+ * @dialog_token: dialog token for aggregation session
  */
 struct tid_ampdu_rx {
-	u8 state;
-	u8 dialog_token;
+	struct sk_buff **reorder_buf;
+	struct timer_list session_timer;
+	u16 head_seq_num;
+	u16 stored_mpdu_num;
 	u16 ssn;
 	u16 buf_size;
 	u16 timeout;
-	u16 head_seq_num;
-	u16 stored_mpdu_num;
-	struct sk_buff **reorder_buf;
-	struct timer_list session_timer;
+	u8 dialog_token;
+};
+
+/**
+ * enum plink_state - state of a mesh peer link finite state machine
+ *
+ * @PLINK_LISTEN: initial state, considered the implicit state of non existant
+ * 	mesh peer links
+ * @PLINK_OPN_SNT: mesh plink open frame has been sent to this mesh peer
+ * @PLINK_OPN_RCVD: mesh plink open frame has been received from this mesh peer
+ * @PLINK_CNF_RCVD: mesh plink confirm frame has been received from this mesh
+ * 	peer
+ * @PLINK_ESTAB: mesh peer link is established
+ * @PLINK_HOLDING: mesh peer link is being closed or cancelled
+ * @PLINK_BLOCKED: all frames transmitted from this mesh plink are discarded
+ */
+enum plink_state {
+	PLINK_LISTEN,
+	PLINK_OPN_SNT,
+	PLINK_OPN_RCVD,
+	PLINK_CNF_RCVD,
+	PLINK_ESTAB,
+	PLINK_HOLDING,
+	PLINK_BLOCKED
 };
 
 /**
  * struct sta_ampdu_mlme - STA aggregation information.
  *
- * @tid_agg_info_rx: aggregation info for Rx per TID
+ * @tid_state_rx: TID's state in Rx session state machine.
+ * @tid_rx: aggregation info for Rx per TID
  * @ampdu_rx: for locking sections in aggregation Rx flow
+ * @tid_state_tx: TID's state in Tx session state machine.
+ * @tid_tx: aggregation info for Tx per TID
+ * @addba_req_num: number of times addBA request has been sent.
+ * @ampdu_tx: for locking sectionsi in aggregation Tx flow
+ * @dialog_token_allocator: dialog token enumerator for each new session;
  */
 struct sta_ampdu_mlme {
-	struct tid_ampdu_rx tid_rx[STA_TID_NUM];
+	/* rx */
+	u8 tid_state_rx[STA_TID_NUM];
+	struct tid_ampdu_rx *tid_rx[STA_TID_NUM];
 	spinlock_t ampdu_rx;
+	/* tx */
+	u8 tid_state_tx[STA_TID_NUM];
+	struct tid_ampdu_tx *tid_tx[STA_TID_NUM];
+	u8 addba_req_num[STA_TID_NUM];
+	spinlock_t ampdu_tx;
+	u8 dialog_token_allocator;
 };
 
+
+/* see __sta_info_unlink */
+#define STA_INFO_PIN_STAT_NORMAL	0
+#define STA_INFO_PIN_STAT_PINNED	1
+#define STA_INFO_PIN_STAT_DESTROY	2
+
+/**
+ * struct sta_info - STA information
+ *
+ * This structure collects information about a station that
+ * mac80211 is communicating with.
+ *
+ * @list: global linked list entry
+ * @hnext: hash table linked list pointer
+ * @local: pointer to the global information
+ * @addr: MAC address of this STA
+ * @aid: STA's unique AID (1..2007, 0 = not assigned yet),
+ *	only used in AP (and IBSS?) mode
+ * @flags: STA flags, see &enum ieee80211_sta_info_flags
+ * @ps_tx_buf: buffer of frames to transmit to this station
+ *	when it leaves power saving state
+ * @tx_filtered: buffer of frames we already tried to transmit
+ *	but were filtered by hardware due to STA having entered
+ *	power saving state
+ * @rx_packets: Number of MSDUs received from this STA
+ * @rx_bytes: Number of bytes received from this STA
+ * @supp_rates: Bitmap of supported rates (per band)
+ * @ht_info: HT capabilities of this STA
+ */
 struct sta_info {
-	struct kref kref;
+	/* General information, mostly static */
 	struct list_head list;
-	struct sta_info *hnext; /* next entry in hash table list */
-
+	struct sta_info *hnext;
 	struct ieee80211_local *local;
-
-	u8 addr[ETH_ALEN];
-	u16 aid; /* STA's unique AID (1..2007), 0 = not yet assigned */
-	u32 flags; /* WLAN_STA_ */
-
-	struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in
-					* power saving state */
-	int pspoll; /* whether STA has send a PS Poll frame */
-	struct sk_buff_head tx_filtered; /* buffer of TX frames that were
-					  * already given to low-level driver,
-					  * but were filtered */
-	int clear_dst_mask;
-
-	unsigned long rx_packets, tx_packets; /* number of RX/TX MSDUs */
-	unsigned long rx_bytes, tx_bytes;
-	unsigned long tx_retry_failed, tx_retry_count;
-	unsigned long tx_filtered_count;
-
-	unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */
-
-	unsigned long last_rx;
-	u32 supp_rates; /* bitmap of supported rates in local->curr_rates */
-	int txrate; /* index in local->curr_rates */
-	int last_txrate; /* last rate used to send a frame to this STA */
-	int last_nonerp_idx;
-
-	struct net_device *dev; /* which net device is this station associated
-				 * to */
-
+	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_key *key;
-
-	u32 tx_num_consecutive_failures;
-	u32 tx_num_mpdu_ok;
-	u32 tx_num_mpdu_fail;
-
 	struct rate_control_ref *rate_ctrl;
 	void *rate_ctrl_priv;
+	struct ieee80211_ht_info ht_info;
+	u64 supp_rates[IEEE80211_NUM_BANDS];
+	u8 addr[ETH_ALEN];
+	u16 aid;
+	u16 listen_interval;
 
-	/* last received seq/frag number from this STA (per RX queue) */
-	__le16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
+	/*
+	 * for use by the internal lifetime management,
+	 * see __sta_info_unlink
+	 */
+	u8 pin_status;
+
+	/* frequently updated information, needs locking? */
+	u32 flags;
+
+	/*
+	 * STA powersave frame queues, no more than the internal
+	 * locking required.
+	 */
+	struct sk_buff_head ps_tx_buf;
+	struct sk_buff_head tx_filtered;
+
+	/* Updated from RX path only, no locking requirements */
+	unsigned long rx_packets, rx_bytes;
+	unsigned long wep_weak_iv_count;
+	unsigned long last_rx;
 	unsigned long num_duplicates; /* number of duplicate frames received
 				       * from this STA */
-	unsigned long tx_fragments; /* number of transmitted MPDUs */
 	unsigned long rx_fragments; /* number of received MPDUs */
 	unsigned long rx_dropped; /* number of dropped MPDUs from this STA */
-
 	int last_rssi; /* RSSI of last received frame from this STA */
 	int last_signal; /* signal of last received frame from this STA */
 	int last_noise; /* noise of last received frame from this STA */
-	int last_ack_rssi[3]; /* RSSI of last received ACKs from this STA */
-	unsigned long last_ack;
-	int channel_use;
-	int channel_use_raw;
-
+	/* last received seq/frag number from this STA (per RX queue) */
+	__le16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 	unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
+#endif
+
+	/* Updated from TX status path only, no locking requirements */
+	unsigned long tx_filtered_count;
+	unsigned long tx_retry_failed, tx_retry_count;
+	/* TODO: update in generic code not rate control? */
+	u32 tx_num_consecutive_failures;
+	u32 tx_num_mpdu_ok;
+	u32 tx_num_mpdu_fail;
+	/* moving percentage of failed MSDUs */
+	unsigned int fail_avg;
+
+	/* Updated from TX path only, no locking requirements */
+	unsigned long tx_packets; /* number of RX/TX MSDUs */
+	unsigned long tx_bytes;
+	unsigned long tx_fragments; /* number of transmitted MPDUs */
+	int txrate_idx;
+	int last_txrate_idx;
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 	unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
-#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
+#endif
 
-	u16 listen_interval;
+	/* Debug counters, no locking doesn't matter */
+	int channel_use;
+	int channel_use_raw;
 
-	struct ieee80211_ht_info ht_info; /* 802.11n HT capabilities
-					     of this STA */
+	/*
+	 * Aggregation information, comes with own locking.
+	 */
 	struct sta_ampdu_mlme ampdu_mlme;
-	u8 timer_to_tid[STA_TID_NUM];	/* convert timer id to tid */
+	u8 timer_to_tid[STA_TID_NUM];	/* identity mapping to ID timers */
+	u8 tid_to_tx_q[STA_TID_NUM];	/* map tid to tx queue */
+
+#ifdef CONFIG_MAC80211_MESH
+	/*
+	 * Mesh peer link attributes
+	 * TODO: move to a sub-structure that is referenced with pointer?
+	 */
+	__le16 llid;		/* Local link ID */
+	__le16 plid;		/* Peer link ID */
+	__le16 reason;		/* Cancel reason on PLINK_HOLDING state */
+	u8 plink_retries;	/* Retries in establishment */
+	bool ignore_plink_timer;
+	enum plink_state plink_state;
+	u32 plink_timeout;
+	struct timer_list plink_timer;
+	spinlock_t plink_lock;	/* For peer_state reads / updates and other
+				   updates in the structure. Ensures robust
+				   transitions for the peerlink FSM */
+#endif
 
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct sta_info_debugfsdentries {
 		struct dentry *dir;
 		struct dentry *flags;
 		struct dentry *num_ps_buf_frames;
-		struct dentry *last_ack_rssi;
-		struct dentry *last_ack_ms;
 		struct dentry *inactive_ms;
 		struct dentry *last_seq_ctrl;
 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
 		struct dentry *wme_rx_queue;
 		struct dentry *wme_tx_queue;
 #endif
+		struct dentry *agg_status;
 	} debugfs;
 #endif
 };
 
+static inline enum plink_state sta_plink_state(struct sta_info *sta)
+{
+#ifdef CONFIG_MAC80211_MESH
+	return sta->plink_state;
+#endif
+	return PLINK_LISTEN;
+}
+
 
 /* Maximum number of concurrently registered stations */
 #define MAX_STA_COUNT 2007
@@ -185,22 +318,46 @@ struct sta_info {
  */
 #define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
 
-static inline void __sta_info_get(struct sta_info *sta)
-{
-	kref_get(&sta->kref);
-}
+/*
+ * Get a STA info, must have be under RCU read lock.
+ */
+struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr);
+/*
+ * Get STA info by index, BROKEN!
+ */
+struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx,
+				      struct net_device *dev);
+/*
+ * Create a new STA info, caller owns returned structure
+ * until sta_info_insert().
+ */
+struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
+				u8 *addr, gfp_t gfp);
+/*
+ * Insert STA info into hash table/list, returns zero or a
+ * -EEXIST if (if the same MAC address is already present).
+ *
+ * Calling this without RCU protection makes the caller
+ * relinquish its reference to @sta.
+ */
+int sta_info_insert(struct sta_info *sta);
+/*
+ * Unlink a STA info from the hash table/list.
+ * This can NULL the STA pointer if somebody else
+ * has already unlinked it.
+ */
+void sta_info_unlink(struct sta_info **sta);
+void __sta_info_unlink(struct sta_info **sta);
+
+void sta_info_destroy(struct sta_info *sta);
+void sta_info_set_tim_bit(struct sta_info *sta);
+void sta_info_clear_tim_bit(struct sta_info *sta);
 
-struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr);
-int sta_info_min_txrate_get(struct ieee80211_local *local);
-void sta_info_put(struct sta_info *sta);
-struct sta_info * sta_info_add(struct ieee80211_local *local,
-			       struct net_device *dev, u8 *addr, gfp_t gfp);
-void sta_info_remove(struct sta_info *sta);
-void sta_info_free(struct sta_info *sta);
 void sta_info_init(struct ieee80211_local *local);
 int sta_info_start(struct ieee80211_local *local);
 void sta_info_stop(struct ieee80211_local *local);
-void sta_info_remove_aid_ptr(struct sta_info *sta);
-void sta_info_flush(struct ieee80211_local *local, struct net_device *dev);
+int sta_info_flush(struct ieee80211_local *local,
+		    struct ieee80211_sub_if_data *sdata);
+void sta_info_flush_delayed(struct ieee80211_sub_if_data *sdata);
 
 #endif /* STA_INFO_H */
diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c
index 3abe194e4d55..dddbfd60f351 100644
--- a/net/mac80211/tkip.c
+++ b/net/mac80211/tkip.c
@@ -12,7 +12,7 @@
 #include <linux/netdevice.h>
 
 #include <net/mac80211.h>
-#include "ieee80211_key.h"
+#include "key.h"
 #include "tkip.h"
 #include "wep.h"
 
@@ -214,6 +214,59 @@ void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
 			   key->u.tkip.iv16, rc4key);
 }
 
+void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
+			struct sk_buff *skb, enum ieee80211_tkip_key_type type,
+			u8 *outkey)
+{
+	struct ieee80211_key *key = (struct ieee80211_key *)
+			container_of(keyconf, struct ieee80211_key, conf);
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	u8 *data = (u8 *) hdr;
+	u16 fc = le16_to_cpu(hdr->frame_control);
+	int hdr_len = ieee80211_get_hdrlen(fc);
+	u8 *ta = hdr->addr2;
+	u16 iv16;
+	u32 iv32;
+
+	iv16 = data[hdr_len] << 8;
+	iv16 += data[hdr_len + 2];
+	iv32 = data[hdr_len + 4] +
+		(data[hdr_len + 5] >> 8) +
+		(data[hdr_len + 6] >> 16) +
+		(data[hdr_len + 7] >> 24);
+
+#ifdef CONFIG_TKIP_DEBUG
+	printk(KERN_DEBUG "TKIP encrypt: iv16 = 0x%04x, iv32 = 0x%08x\n",
+			iv16, iv32);
+
+	if (iv32 != key->u.tkip.iv32) {
+		printk(KERN_DEBUG "skb: iv32 = 0x%08x key: iv32 = 0x%08x\n",
+			iv32, key->u.tkip.iv32);
+		printk(KERN_DEBUG "Wrap around of iv16 in the middle of a "
+			"fragmented packet\n");
+	}
+#endif /* CONFIG_TKIP_DEBUG */
+
+	/* Update the p1k only when the iv16 in the packet wraps around, this
+	 * might occur after the wrap around of iv16 in the key in case of
+	 * fragmented packets. */
+	if (iv16 == 0 || !key->u.tkip.tx_initialized) {
+		/* IV16 wrapped around - perform TKIP phase 1 */
+		tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
+			iv32, key->u.tkip.p1k);
+		key->u.tkip.tx_initialized = 1;
+	}
+
+	if (type == IEEE80211_TKIP_P1_KEY) {
+		memcpy(outkey, key->u.tkip.p1k, sizeof(u16) * 5);
+		return;
+	}
+
+	tkip_mixing_phase2(key->u.tkip.p1k,
+		&key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],	iv16, outkey);
+}
+EXPORT_SYMBOL(ieee80211_get_tkip_key);
+
 /* Encrypt packet payload with TKIP using @key. @pos is a pointer to the
  * beginning of the buffer containing payload. This payload must include
  * headroom of eight octets for IV and Ext. IV and taildroom of four octets
@@ -238,7 +291,7 @@ void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
 int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 				struct ieee80211_key *key,
 				u8 *payload, size_t payload_len, u8 *ta,
-				int only_iv, int queue,
+				u8 *ra, int only_iv, int queue,
 				u32 *out_iv32, u16 *out_iv16)
 {
 	u32 iv32;
@@ -315,6 +368,19 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 			printk("\n");
 		}
 #endif /* CONFIG_TKIP_DEBUG */
+		if (key->local->ops->update_tkip_key &&
+			key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
+			u8 bcast[ETH_ALEN] =
+				{0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+			u8 *sta_addr = key->sta->addr;
+
+			if (is_multicast_ether_addr(ra))
+				sta_addr = bcast;
+
+			key->local->ops->update_tkip_key(
+				local_to_hw(key->local), &key->conf,
+				sta_addr, iv32, key->u.tkip.p1k_rx[queue]);
+		}
 	}
 
 	tkip_mixing_phase2(key->u.tkip.p1k_rx[queue],
diff --git a/net/mac80211/tkip.h b/net/mac80211/tkip.h
index 73d8ef2a93b0..b7c2ee763d9d 100644
--- a/net/mac80211/tkip.h
+++ b/net/mac80211/tkip.h
@@ -11,7 +11,7 @@
 
 #include <linux/types.h>
 #include <linux/crypto.h>
-#include "ieee80211_key.h"
+#include "key.h"
 
 u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
 			   u8 iv0, u8 iv1, u8 iv2);
@@ -31,7 +31,7 @@ enum {
 int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 				struct ieee80211_key *key,
 				u8 *payload, size_t payload_len, u8 *ta,
-				int only_iv, int queue,
+				u8 *ra, int only_iv, int queue,
 				u32 *out_iv32, u16 *out_iv16);
 
 #endif /* TKIP_H */
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 67b509edd431..f35eaea98e73 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
@@ -86,15 +87,19 @@ 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,
+static u16 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 = tx->rate;
 	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[local->hw.conf.channel->band];
+
+	erp = 0;
+	if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+		erp = txrate->flags & IEEE80211_RATE_ERP_G;
 
 	/*
 	 * data and mgmt (except PS Poll):
@@ -150,20 +155,36 @@ 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
@@ -184,7 +205,7 @@ 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,
+				txrate->bitrate, erp,
 				tx->sdata->bss_conf.use_short_preamble);
 	}
 
@@ -212,8 +233,8 @@ 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
+ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx)
 {
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 	struct sk_buff *skb = tx->skb;
@@ -221,20 +242,23 @@ ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 	u32 sta_flags;
 
-	if (unlikely(tx->flags & IEEE80211_TXRXD_TX_INJECTED))
-		return TXRX_CONTINUE;
+	if (unlikely(tx->flags & IEEE80211_TX_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->flags & IEEE80211_TXRXD_TXPS_BUFFERED)
-		return TXRX_CONTINUE;
+	if (tx->sdata->vif.type == IEEE80211_IF_TYPE_MESH_POINT)
+		return TX_CONTINUE;
+
+	if (tx->flags & IEEE80211_TX_PS_BUFFERED)
+		return TX_CONTINUE;
 
 	sta_flags = tx->sta ? tx->sta->flags : 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)) {
@@ -245,7 +269,7 @@ 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 &&
@@ -255,23 +279,23 @@ 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;
+	return TX_CONTINUE;
 }
 
-static ieee80211_txrx_result
-ieee80211_tx_h_sequence(struct ieee80211_txrx_data *tx)
+static ieee80211_tx_result
+ieee80211_tx_h_sequence(struct ieee80211_tx_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
@@ -303,10 +327,8 @@ 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++;
@@ -314,15 +336,16 @@ 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;
 	printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n",
 	       wiphy_name(local->hw.wiphy), purged);
 }
 
-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)
 {
 	/*
 	 * broadcast/multicast frame
@@ -334,11 +357,11 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
 
 	/* not AP/IBSS or ordered frame */
 	if (!tx->sdata->bss || (tx->fc & IEEE80211_FCTL_ORDER))
-		return TXRX_CONTINUE;
+		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) {
@@ -355,17 +378,17 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
 		} 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;
+	tx->control->flags |= IEEE80211_TXCTL_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;
 	DECLARE_MAC_BUF(mac);
@@ -373,9 +396,10 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
 	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)) {
+	if (unlikely((sta->flags & WLAN_STA_PS) &&
+		     !(sta->flags & WLAN_STA_PSPOLL))) {
 		struct ieee80211_tx_packet_data *pkt_data;
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
 		printk(KERN_DEBUG "STA %s aid %d: PS buffer (entries "
@@ -383,7 +407,6 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
 		       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) {
@@ -396,18 +419,15 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
 			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);
-		}
+		if (skb_queue_empty(&sta->ps_tx_buf))
+			sta_info_set_tim_bit(sta);
+
 		pkt_data = (struct ieee80211_tx_packet_data *)tx->skb->cb;
 		pkt_data->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)) {
@@ -416,40 +436,40 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
 		       print_mac(mac, sta->addr));
 	}
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-	sta->pspoll = 0;
+	sta->flags &= ~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
+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
+ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 {
 	struct ieee80211_key *key;
 	u16 fc = tx->fc;
 
-	if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
+	if (unlikely(tx->control->flags & IEEE80211_TXCTL_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->control->flags & IEEE80211_TXCTL_EAPOL_FRAME) &&
+		 !(tx->flags & IEEE80211_TX_INJECTED)) {
 		I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted);
-		return TXRX_DROP;
+		return TX_DROP;
 	} else
 		tx->key = NULL;
 
@@ -476,13 +496,13 @@ 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->control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
-static ieee80211_txrx_result
-ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
+static ieee80211_tx_result
+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;
@@ -492,8 +512,8 @@ 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;
 
 	first = tx->skb;
 
@@ -544,10 +564,10 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
 	}
 	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);
@@ -558,14 +578,14 @@ 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
+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:
@@ -578,59 +598,60 @@ 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
+ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 {
 	struct rate_selection rsel;
+	struct ieee80211_supported_band *sband;
+
+	sband = tx->local->hw.wiphy->bands[tx->local->hw.conf.channel->band];
 
-	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 |=
+	if (likely(!tx->rate)) {
+		rate_control_get_rate(tx->dev, sband, tx->skb, &rsel);
+		tx->rate = rsel.rate;
+		if (unlikely(rsel.probe)) {
+			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;
+			tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG;
+			tx->control->alt_retry_rate = tx->rate;
+			tx->rate = rsel.probe;
 		} else
-			tx->u.tx.control->alt_retry_rate = -1;
+			tx->control->alt_retry_rate = NULL;
 
-		if (!tx->u.tx.rate)
-			return TXRX_DROP;
+		if (!tx->rate)
+			return TX_DROP;
 	} else
-		tx->u.tx.control->alt_retry_rate = -1;
+		tx->control->alt_retry_rate = NULL;
 
-	if (tx->u.tx.mode->mode == MODE_IEEE80211G &&
-	    tx->sdata->bss_conf.use_cts_prot &&
-	    (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && rsel.nonerp) {
-		tx->u.tx.last_frag_rate = tx->u.tx.rate;
+	if (tx->sdata->bss_conf.use_cts_prot &&
+	    (tx->flags & IEEE80211_TX_FRAGMENTED) && rsel.nonerp) {
+		tx->last_frag_rate = tx->rate;
 		if (rsel.probe)
-			tx->flags &= ~IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
+			tx->flags &= ~IEEE80211_TX_PROBE_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;
+			tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG;
+		tx->rate = rsel.nonerp;
+		tx->control->tx_rate = rsel.nonerp;
+		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;
+		tx->last_frag_rate = tx->rate;
+		tx->control->tx_rate = tx->rate;
 	}
-	tx->u.tx.control->tx_rate = tx->u.tx.rate->val;
+	tx->control->tx_rate = tx->rate;
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
-static ieee80211_txrx_result
-ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
+static ieee80211_tx_result
+ieee80211_tx_h_misc(struct ieee80211_tx_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;
+	struct ieee80211_tx_control *control = tx->control;
 
 	if (!control->retry_limit) {
 		if (!is_multicast_ether_addr(hdr->addr1)) {
@@ -652,20 +673,20 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
 		}
 	}
 
-	if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
+	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. */
-		control->alt_retry_rate = -1;
+		control->alt_retry_rate = NULL;
 	}
 
 	/* 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) &&
+	if ((tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) &&
+	    (tx->rate->flags & IEEE80211_RATE_ERP_G) &&
+	    (tx->flags & IEEE80211_TX_UNICAST) &&
 	    tx->sdata->bss_conf.use_cts_prot &&
 	    !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
 		control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT;
@@ -674,62 +695,77 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
 	 * 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->rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
 	    tx->sdata->bss_conf.use_short_preamble &&
 	    (!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) {
-		tx->u.tx.control->tx_rate = tx->u.tx.rate->val2;
+		tx->control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
 	}
 
 	/* 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);
+				 (tx->flags & IEEE80211_TX_FRAGMENTED) ?
+				 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;
+		struct ieee80211_supported_band *sband;
+		struct ieee80211_rate *rate, *baserate;
+		int idx;
+
+		sband = tx->local->hw.wiphy->bands[
+				tx->local->hw.conf.channel->band];
 
 		/* Do not use multiple retry rates when using RTS/CTS */
-		control->alt_retry_rate = -1;
+		control->alt_retry_rate = NULL;
 
 		/* 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--;
+		rate = tx->rate;
+		baserate = NULL;
+
+		for (idx = 0; idx < sband->n_bitrates; idx++) {
+			if (sband->bitrates[idx].bitrate > rate->bitrate)
+				continue;
+			if (tx->sdata->basic_rates & BIT(idx) &&
+			    (!baserate ||
+			     (baserate->bitrate < sband->bitrates[idx].bitrate)))
+				baserate = &sband->bitrates[idx];
+		}
 
-		control->rts_cts_rate = rate->val;
-		control->rts_rate = rate;
+		if (baserate)
+			control->rts_cts_rate = baserate;
+		else
+			control->rts_cts_rate = &sband->bitrates[0];
 	}
 
 	if (tx->sta) {
+		control->aid = tx->sta->aid;
 		tx->sta->tx_packets++;
 		tx->sta->tx_fragments++;
 		tx->sta->tx_bytes += tx->skb->len;
-		if (tx->u.tx.extra_frag) {
+		if (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_fragments += tx->num_extra_frag;
+			for (i = 0; i < tx->num_extra_frag; i++) {
 				tx->sta->tx_bytes +=
-					tx->u.tx.extra_frag[i]->len;
+					tx->extra_frag[i]->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
+ieee80211_tx_h_load_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;
+	struct ieee80211_rate *rate = tx->rate;
 
 	/* 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
@@ -740,9 +776,9 @@ ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx)
 	/* 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))
+	if (tx->channel->band == IEEE80211_BAND_5GHZ ||
+	    (tx->channel->band == IEEE80211_BAND_2GHZ &&
+	     rate->flags & IEEE80211_RATE_ERP_G))
 		hdrtime = CHAN_UTIL_HDR_SHORT;
 	else
 		hdrtime = CHAN_UTIL_HDR_LONG;
@@ -751,19 +787,20 @@ ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx)
 	if (!is_multicast_ether_addr(hdr->addr1))
 		load += hdrtime;
 
-	if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_RTS_CTS)
+	if (tx->control->flags & IEEE80211_TXCTL_USE_RTS_CTS)
 		load += 2 * hdrtime;
-	else if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
+	else if (tx->control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
 		load += hdrtime;
 
-	load += skb->len * tx->u.tx.rate->rate_inv;
+	/* TODO: optimise again */
+	load += skb->len * CHAN_UTIL_RATE_LCM / rate->bitrate;
 
-	if (tx->u.tx.extra_frag) {
+	if (tx->extra_frag) {
 		int i;
-		for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+		for (i = 0; i < tx->num_extra_frag; i++) {
 			load += 2 * hdrtime;
-			load += tx->u.tx.extra_frag[i]->len *
-				tx->u.tx.rate->rate;
+			load += tx->extra_frag[i]->len *
+				tx->rate->bitrate;
 		}
 	}
 
@@ -774,13 +811,12 @@ ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx)
 		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[] =
+typedef ieee80211_tx_result (*ieee80211_tx_handler)(struct ieee80211_tx_data *);
+static ieee80211_tx_handler ieee80211_tx_handlers[] =
 {
 	ieee80211_tx_h_check_assoc,
 	ieee80211_tx_h_sequence,
@@ -801,8 +837,8 @@ 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)
 {
 	/*
@@ -816,13 +852,15 @@ __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_control *control = tx->control;
+
+	sband = tx->local->hw.wiphy->bands[tx->local->hw.conf.channel->band];
 
 	control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
-	tx->flags |= IEEE80211_TXRXD_TX_INJECTED;
-	tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
+	tx->flags |= IEEE80211_TX_INJECTED;
+	tx->flags &= ~IEEE80211_TX_FRAGMENTED;
 
 	/*
 	 * for every radiotap entry that is present
@@ -852,11 +890,13 @@ __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 = r;
 					break;
 				}
 			}
@@ -870,9 +910,11 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
 			control->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) {
@@ -884,7 +926,7 @@ __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);
 			}
@@ -892,7 +934,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
 				control->flags &=
 					~IEEE80211_TXCTL_DO_NOT_ENCRYPT;
 			if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG)
-				tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
+				tx->flags |= IEEE80211_TX_FRAGMENTED;
 			break;
 
 		/*
@@ -907,7 +949,7 @@ __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
@@ -916,14 +958,14 @@ __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)
@@ -939,18 +981,18 @@ __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->control = control;
 	/*
 	 * 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
@@ -965,27 +1007,27 @@ __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;
+		tx->flags &= ~IEEE80211_TX_UNICAST;
 		control->flags |= IEEE80211_TXCTL_NO_ACK;
 	} else {
-		tx->flags |= IEEE80211_TXRXD_TXUNICAST;
+		tx->flags |= IEEE80211_TX_UNICAST;
 		control->flags &= ~IEEE80211_TXCTL_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;
+			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;
+		control->flags |= IEEE80211_TXCTL_CLEAR_PS_FILT;
+	else if (tx->sta->flags & WLAN_STA_CLEAR_PS_FILT) {
+		control->flags |= IEEE80211_TXCTL_CLEAR_PS_FILT;
+		tx->sta->flags &= ~WLAN_STA_CLEAR_PS_FILT;
 	}
 
 	hdrlen = ieee80211_get_hdrlen(tx->fc);
@@ -995,13 +1037,13 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
 	}
 	control->flags |= IEEE80211_TXCTL_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)
@@ -1024,9 +1066,9 @@ static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
 }
 
 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_control *control = tx->control;
 	int ret, i;
 
 	if (!ieee80211_qdisc_installed(local->mdev) &&
@@ -1043,20 +1085,20 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
 		local->mdev->trans_start = jiffies;
 		ieee80211_led_tx(local, 1);
 	}
-	if (tx->u.tx.extra_frag) {
+	if (tx->extra_frag) {
 		control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS |
 				    IEEE80211_TXCTL_USE_CTS_PROTECT |
-				    IEEE80211_TXCTL_CLEAR_DST_MASK |
+				    IEEE80211_TXCTL_CLEAR_PS_FILT |
 				    IEEE80211_TXCTL_FIRST_FRAGMENT);
-		for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
-			if (!tx->u.tx.extra_frag[i])
+		for (i = 0; i < tx->num_extra_frag; i++) {
+			if (!tx->extra_frag[i])
 				continue;
 			if (__ieee80211_queue_stopped(local, control->queue))
 				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)
+			if (i == tx->num_extra_frag) {
+				control->tx_rate = tx->last_frag_rate;
+
+				if (tx->flags & IEEE80211_TX_PROBE_LAST_FRAG)
 					control->flags |=
 						IEEE80211_TXCTL_RATE_CTRL_PROBE;
 				else
@@ -1066,18 +1108,18 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
 
 			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],
+					    tx->extra_frag[i],
 					    control);
 			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;
 }
@@ -1088,8 +1130,8 @@ 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 = TX_DROP, res_prepare;
 	int ret, i;
 
 	WARN_ON(__ieee80211_queue_pending(local, control->queue));
@@ -1099,59 +1141,52 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
 		return 0;
 	}
 
+	rcu_read_lock();
+
 	/* initialises tx */
 	res_prepare = __ieee80211_tx_prepare(&tx, skb, dev, control);
 
-	if (res_prepare == TXRX_DROP) {
+	if (res_prepare == TX_DROP) {
 		dev_kfree_skb(skb);
+		rcu_read_unlock();
 		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;
+	tx.channel = local->hw.conf.channel;
 
-	for (handler = local->tx_handlers; *handler != NULL;
+	for (handler = ieee80211_tx_handlers; *handler != NULL;
 	     handler++) {
 		res = (*handler)(&tx);
-		if (res != TXRX_CONTINUE)
+		if (res != TX_CONTINUE)
 			break;
 	}
 
 	skb = tx.skb; /* handlers are allowed to change skb */
 
-	if (sta)
-		sta_info_put(sta);
-
-	if (unlikely(res == TXRX_DROP)) {
+	if (unlikely(res == TX_DROP)) {
 		I802_DEBUG_INC(local->tx_handlers_drop);
 		goto drop;
 	}
 
-	if (unlikely(res == TXRX_QUEUED)) {
+	if (unlikely(res == TX_QUEUED)) {
 		I802_DEBUG_INC(local->tx_handlers_queued);
 		rcu_read_unlock();
 		return 0;
 	}
 
-	if (tx.u.tx.extra_frag) {
-		for (i = 0; i < tx.u.tx.num_extra_frag; i++) {
+	if (tx.extra_frag) {
+		for (i = 0; i < tx.num_extra_frag; i++) {
 			int next_len, dur;
 			struct ieee80211_hdr *hdr =
 				(struct ieee80211_hdr *)
-				tx.u.tx.extra_frag[i]->data;
+				tx.extra_frag[i]->data;
 
-			if (i + 1 < tx.u.tx.num_extra_frag) {
-				next_len = tx.u.tx.extra_frag[i + 1]->len;
+			if (i + 1 < tx.num_extra_frag) {
+				next_len = 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;
+				tx.rate = tx.last_frag_rate;
 			}
 			dur = ieee80211_duration(&tx, 0, next_len);
 			hdr->duration_id = cpu_to_le16(dur);
@@ -1186,12 +1221,11 @@ 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 = tx.last_frag_rate;
 		store->last_frag_rate_ctrl_probe =
-			!!(tx.flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG);
+			!!(tx.flags & IEEE80211_TX_PROBE_LAST_FRAG);
 	}
 	rcu_read_unlock();
 	return 0;
@@ -1199,10 +1233,10 @@ retry:
  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;
 }
@@ -1260,6 +1294,8 @@ int ieee80211_master_start_xmit(struct sk_buff *skb,
 		control.flags |= IEEE80211_TXCTL_REQUEUE;
 	if (pkt_data->flags & IEEE80211_TXPD_EAPOL_FRAME)
 		control.flags |= IEEE80211_TXCTL_EAPOL_FRAME;
+	if (pkt_data->flags & IEEE80211_TXPD_AMPDU)
+		control.flags |= IEEE80211_TXCTL_AMPDU;
 	control.queue = pkt_data->queue;
 
 	ret = ieee80211_tx(odev, skb, &control);
@@ -1346,8 +1382,9 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 	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, 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;
@@ -1389,6 +1426,37 @@ 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 |= IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS;
+		/* RA TA DA SA */
+		if (is_multicast_ether_addr(skb->data))
+			memcpy(hdr.addr1, skb->data, ETH_ALEN);
+		else if (mesh_nexthop_lookup(hdr.addr1, skb, dev))
+				return 0;
+		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 (skb->pkt_type == PACKET_OTHERHOST) {
+			/* Forwarded frame, keep mesh ttl and seqnum */
+			struct ieee80211s_hdr *prev_meshhdr;
+			prev_meshhdr = ((struct ieee80211s_hdr *)skb->cb);
+			meshhdrlen = ieee80211_get_mesh_hdrlen(prev_meshhdr);
+			memcpy(&mesh_hdr, prev_meshhdr, meshhdrlen);
+			sdata->u.sta.mshstats.fwded_frames++;
+		} else {
+			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;
 		/* BSSID SA DA */
@@ -1409,10 +1477,17 @@ 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 = sta->flags;
+		rcu_read_unlock();
 	}
 
 	/* receiver is QoS enabled, use a QoS type frame */
@@ -1422,12 +1497,12 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 	}
 
 	/*
-	 * 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 (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
@@ -1480,7 +1555,7 @@ 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 = hdrlen + encaps_len + meshhdrlen + local->tx_headroom;
 	head_need -= skb_headroom(skb);
 
 	/* We are going to modify skb data, so make a copy of it if happens to
@@ -1514,6 +1589,12 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 		h_pos += encaps_len;
 	}
 
+	if (meshhdrlen > 0) {
+		memcpy(skb_push(skb, meshhdrlen), &mesh_hdr, meshhdrlen);
+		nh_pos += meshhdrlen;
+		h_pos += meshhdrlen;
+	}
+
 	if (fc & IEEE80211_STYPE_QOS_DATA) {
 		__le16 *qos_control;
 
@@ -1583,7 +1664,7 @@ 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;
+	struct ieee80211_tx_data tx;
 	int i, ret, reschedule = 0;
 
 	netif_tx_lock_bh(dev);
@@ -1595,14 +1676,13 @@ void ieee80211_tx_pending(unsigned long data)
 			continue;
 		}
 		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.control = &store->control;
+		tx.extra_frag = store->extra_frag;
+		tx.num_extra_frag = store->num_extra_frag;
+		tx.last_frag_rate = store->last_frag_rate;
 		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)
@@ -1636,7 +1716,6 @@ 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 */
@@ -1687,7 +1766,6 @@ 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,
@@ -1701,16 +1779,96 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 	struct ieee80211_if_ap *ap = NULL;
 	struct rate_selection rsel;
 	struct beacon_data *beacon;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_mgmt *mgmt;
+	int *num_beacons;
+	bool err = true;
+	u8 *pos;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 
 	rcu_read_lock();
 
 	sdata = vif_to_sdata(vif);
 	bdev = sdata->dev;
-	ap = &sdata->u.ap;
 
-	beacon = rcu_dereference(ap->beacon);
+	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;
+
+			skb_reserve(skb, local->tx_headroom);
+			memcpy(skb_put(skb, beacon->head_len), beacon->head,
+			       beacon->head_len);
+
+			ieee80211_include_sequence(sdata,
+					(struct ieee80211_hdr *)skb->data);
+
+			/*
+			 * 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);
 
-	if (!ap || sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon) {
+			num_beacons = &ap->num_beacons;
+
+			err = false;
+		}
+	} 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 = IEEE80211_FC(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;
+
+		err = false;
+	}
+
+	if (err) {
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 		if (net_ratelimit())
 			printk(KERN_DEBUG "no beacon data avail for %s\n",
@@ -1720,27 +1878,8 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 		goto out;
 	}
 
-	/* 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;
-
-	skb_reserve(skb, local->tx_headroom);
-	memcpy(skb_put(skb, beacon->head_len), beacon->head,
-	       beacon->head_len);
-
-	ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data);
-
-	ieee80211_beacon_add_tim(local, ap, skb, beacon);
-
-	if (beacon->tail)
-		memcpy(skb_put(skb, beacon->tail_len), beacon->tail,
-		       beacon->tail_len);
-
 	if (control) {
-		rate_control_get_rate(local->mdev, local->oper_hw_mode, skb,
-				      &rsel);
+		rate_control_get_rate(local->mdev, sband, skb, &rsel);
 		if (!rsel.rate) {
 			if (net_ratelimit()) {
 				printk(KERN_DEBUG "%s: ieee80211_beacon_get: "
@@ -1753,20 +1892,17 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 		}
 
 		control->vif = vif;
-		control->tx_rate =
-			(sdata->bss_conf.use_short_preamble &&
-			(rsel.rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
-			rsel.rate->val2 : rsel.rate->val;
+		control->tx_rate = rsel.rate;
+		if (sdata->bss_conf.use_short_preamble &&
+		    rsel.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
+			control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
 		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;
+		control->flags |= IEEE80211_TXCTL_CLEAR_PS_FILT;
 	}
-
-	ap->num_beacons++;
-
- out:
+	(*num_beacons)++;
+out:
 	rcu_read_unlock();
 	return skb;
 }
@@ -1814,8 +1950,8 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
 	struct sk_buff *skb;
 	struct sta_info *sta;
 	ieee80211_tx_handler *handler;
-	struct ieee80211_txrx_data tx;
-	ieee80211_txrx_result res = TXRX_DROP;
+	struct ieee80211_tx_data tx;
+	ieee80211_tx_result res = TX_DROP;
 	struct net_device *bdev;
 	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_if_ap *bss = NULL;
@@ -1836,7 +1972,6 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
 		rcu_read_unlock();
 		return NULL;
 	}
-	rcu_read_unlock();
 
 	if (bss->dtim_count != 0)
 		return NULL; /* send buffered bc/mc only after DTIM beacon */
@@ -1862,27 +1997,26 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
 		dev_kfree_skb_any(skb);
 	}
 	sta = tx.sta;
-	tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED;
-	tx.u.tx.mode = local->hw.conf.mode;
+	tx.flags |= IEEE80211_TX_PS_BUFFERED;
+	tx.channel = local->hw.conf.channel;
 
-	for (handler = local->tx_handlers; *handler != NULL; handler++) {
+	for (handler = ieee80211_tx_handlers; *handler != NULL; handler++) {
 		res = (*handler)(&tx);
-		if (res == TXRX_DROP || res == TXRX_QUEUED)
+		if (res == TX_DROP || res == TX_QUEUED)
 			break;
 	}
 	skb = tx.skb; /* handlers are allowed to change skb */
 
-	if (res == TXRX_DROP) {
+	if (res == TX_DROP) {
 		I802_DEBUG_INC(local->tx_handlers_drop);
 		dev_kfree_skb(skb);
 		skb = NULL;
-	} else if (res == TXRX_QUEUED) {
+	} else if (res == TX_QUEUED) {
 		I802_DEBUG_INC(local->tx_handlers_queued);
 		skb = NULL;
 	}
 
-	if (sta)
-		sta_info_put(sta);
+	rcu_read_unlock();
 
 	return skb;
 }
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 5e631ce98d7e..cc9f715c7bfc 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -25,7 +25,8 @@
 #include <net/rtnetlink.h>
 
 #include "ieee80211_i.h"
-#include "ieee80211_rate.h"
+#include "rate.h"
+#include "mesh.h"
 #include "wme.h"
 
 /* privid for wiphys to determine whether they belong to us or not */
@@ -41,92 +42,6 @@ const unsigned char bridge_tunnel_header[] =
 	{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
 
 
-static int rate_list_match(const int *rate_list, int rate)
-{
-	int i;
-
-	if (!rate_list)
-		return 0;
-
-	for (i = 0; rate_list[i] >= 0; i++)
-		if (rate_list[i] == rate)
-			return 1;
-
-	return 0;
-}
-
-void ieee80211_prepare_rates(struct ieee80211_local *local,
-			     struct ieee80211_hw_mode *mode)
-{
-	int i;
-
-	for (i = 0; i < mode->num_rates; i++) {
-		struct ieee80211_rate *rate = &mode->rates[i];
-
-		rate->flags &= ~(IEEE80211_RATE_SUPPORTED |
-				 IEEE80211_RATE_BASIC);
-
-		if (local->supp_rates[mode->mode]) {
-			if (!rate_list_match(local->supp_rates[mode->mode],
-					     rate->rate))
-				continue;
-		}
-
-		rate->flags |= IEEE80211_RATE_SUPPORTED;
-
-		/* Use configured basic rate set if it is available. If not,
-		 * use defaults that are sane for most cases. */
-		if (local->basic_rates[mode->mode]) {
-			if (rate_list_match(local->basic_rates[mode->mode],
-					    rate->rate))
-				rate->flags |= IEEE80211_RATE_BASIC;
-		} else switch (mode->mode) {
-		case MODE_IEEE80211A:
-			if (rate->rate == 60 || rate->rate == 120 ||
-			    rate->rate == 240)
-				rate->flags |= IEEE80211_RATE_BASIC;
-			break;
-		case MODE_IEEE80211B:
-			if (rate->rate == 10 || rate->rate == 20)
-				rate->flags |= IEEE80211_RATE_BASIC;
-			break;
-		case MODE_IEEE80211G:
-			if (rate->rate == 10 || rate->rate == 20 ||
-			    rate->rate == 55 || rate->rate == 110)
-				rate->flags |= IEEE80211_RATE_BASIC;
-			break;
-		case NUM_IEEE80211_MODES:
-			/* not useful */
-			break;
-		}
-
-		/* Set ERP and MANDATORY flags based on phymode */
-		switch (mode->mode) {
-		case MODE_IEEE80211A:
-			if (rate->rate == 60 || rate->rate == 120 ||
-			    rate->rate == 240)
-				rate->flags |= IEEE80211_RATE_MANDATORY;
-			break;
-		case MODE_IEEE80211B:
-			if (rate->rate == 10)
-				rate->flags |= IEEE80211_RATE_MANDATORY;
-			break;
-		case MODE_IEEE80211G:
-			if (rate->rate == 10 || rate->rate == 20 ||
-			    rate->rate == 55 || rate->rate == 110 ||
-			    rate->rate == 60 || rate->rate == 120 ||
-			    rate->rate == 240)
-				rate->flags |= IEEE80211_RATE_MANDATORY;
-			break;
-		case NUM_IEEE80211_MODES:
-			/* not useful */
-			break;
-		}
-		if (ieee80211_is_erp_rate(mode->mode, rate->rate))
-			rate->flags |= IEEE80211_RATE_ERP;
-	}
-}
-
 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
 			enum ieee80211_if_types type)
 {
@@ -232,17 +147,35 @@ int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
 }
 EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
 
-void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx)
+int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
+{
+	int ae = meshhdr->flags & IEEE80211S_FLAGS_AE;
+	/* 7.1.3.5a.2 */
+	switch (ae) {
+	case 0:
+		return 5;
+	case 1:
+		return 11;
+	case 2:
+		return 17;
+	case 3:
+		return 23;
+	default:
+		return 5;
+	}
+}
+
+void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
 
 	hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
-	if (tx->u.tx.extra_frag) {
+	if (tx->extra_frag) {
 		struct ieee80211_hdr *fhdr;
 		int i;
-		for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
+		for (i = 0; i < tx->num_extra_frag; i++) {
 			fhdr = (struct ieee80211_hdr *)
-				tx->u.tx.extra_frag[i]->data;
+				tx->extra_frag[i]->data;
 			fhdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
 		}
 	}
@@ -262,7 +195,7 @@ int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
 	 * DIV_ROUND_UP() operations.
 	 */
 
-	if (local->hw.conf.phymode == MODE_IEEE80211A || erp) {
+	if (local->hw.conf.channel->band == IEEE80211_BAND_5GHZ || erp) {
 		/*
 		 * OFDM:
 		 *
@@ -304,15 +237,19 @@ int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
 /* Exported duration function for driver use */
 __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
 					struct ieee80211_vif *vif,
-					size_t frame_len, int rate)
+					size_t frame_len,
+					struct ieee80211_rate *rate)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
 	u16 dur;
 	int erp;
 
-	erp = ieee80211_is_erp_rate(hw->conf.phymode, rate);
-	dur = ieee80211_frame_duration(local, frame_len, rate, erp,
+	erp = 0;
+	if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+		erp = rate->flags & IEEE80211_RATE_ERP_G;
+
+	dur = ieee80211_frame_duration(local, frame_len, rate->bitrate, erp,
 				       sdata->bss_conf.use_short_preamble);
 
 	return cpu_to_le16(dur);
@@ -332,17 +269,20 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
 
 	short_preamble = sdata->bss_conf.use_short_preamble;
 
-	rate = frame_txctl->rts_rate;
-	erp = !!(rate->flags & IEEE80211_RATE_ERP);
+	rate = frame_txctl->rts_cts_rate;
+
+	erp = 0;
+	if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+		erp = rate->flags & IEEE80211_RATE_ERP_G;
 
 	/* CTS duration */
-	dur = ieee80211_frame_duration(local, 10, rate->rate,
+	dur = ieee80211_frame_duration(local, 10, rate->bitrate,
 				       erp, short_preamble);
 	/* Data frame duration */
-	dur += ieee80211_frame_duration(local, frame_len, rate->rate,
+	dur += ieee80211_frame_duration(local, frame_len, rate->bitrate,
 					erp, short_preamble);
 	/* ACK duration */
-	dur += ieee80211_frame_duration(local, 10, rate->rate,
+	dur += ieee80211_frame_duration(local, 10, rate->bitrate,
 					erp, short_preamble);
 
 	return cpu_to_le16(dur);
@@ -363,15 +303,17 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
 
 	short_preamble = sdata->bss_conf.use_short_preamble;
 
-	rate = frame_txctl->rts_rate;
-	erp = !!(rate->flags & IEEE80211_RATE_ERP);
+	rate = frame_txctl->rts_cts_rate;
+	erp = 0;
+	if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+		erp = rate->flags & IEEE80211_RATE_ERP_G;
 
 	/* Data frame duration */
-	dur = ieee80211_frame_duration(local, frame_len, rate->rate,
+	dur = ieee80211_frame_duration(local, frame_len, rate->bitrate,
 				       erp, short_preamble);
 	if (!(frame_txctl->flags & IEEE80211_TXCTL_NO_ACK)) {
 		/* ACK duration */
-		dur += ieee80211_frame_duration(local, 10, rate->rate,
+		dur += ieee80211_frame_duration(local, 10, rate->bitrate,
 						erp, short_preamble);
 	}
 
@@ -379,27 +321,6 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
 }
 EXPORT_SYMBOL(ieee80211_ctstoself_duration);
 
-struct ieee80211_rate *
-ieee80211_get_rate(struct ieee80211_local *local, int phymode, int hw_rate)
-{
-	struct ieee80211_hw_mode *mode;
-	int r;
-
-	list_for_each_entry(mode, &local->modes_list, list) {
-		if (mode->mode != phymode)
-			continue;
-		for (r = 0; r < mode->num_rates; r++) {
-			struct ieee80211_rate *rate = &mode->rates[r];
-			if (rate->val == hw_rate ||
-			    (rate->flags & IEEE80211_RATE_PREAMBLE2 &&
-			     rate->val2 == hw_rate))
-				return rate;
-		}
-	}
-
-	return NULL;
-}
-
 void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
@@ -480,6 +401,7 @@ void ieee80211_iterate_active_interfaces(
 		case IEEE80211_IF_TYPE_STA:
 		case IEEE80211_IF_TYPE_IBSS:
 		case IEEE80211_IF_TYPE_WDS:
+		case IEEE80211_IF_TYPE_MESH_POINT:
 			break;
 		}
 		if (sdata->dev == local->mdev)
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index a0cff72a580b..affcecd78c10 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -305,39 +305,39 @@ u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key)
 	return NULL;
 }
 
-ieee80211_txrx_result
-ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx)
+ieee80211_rx_result
+ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx)
 {
 	if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
 	    ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
 	     (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH))
-		return TXRX_CONTINUE;
+		return RX_CONTINUE;
 
-	if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) {
+	if (!(rx->status->flag & RX_FLAG_DECRYPTED)) {
 		if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) {
 #ifdef CONFIG_MAC80211_DEBUG
 			if (net_ratelimit())
 				printk(KERN_DEBUG "%s: RX WEP frame, decrypt "
 				       "failed\n", rx->dev->name);
 #endif /* CONFIG_MAC80211_DEBUG */
-			return TXRX_DROP;
+			return RX_DROP_UNUSABLE;
 		}
-	} else if (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED)) {
+	} else if (!(rx->status->flag & RX_FLAG_IV_STRIPPED)) {
 		ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
 		/* remove ICV */
 		skb_trim(rx->skb, rx->skb->len - 4);
 	}
 
-	return TXRX_CONTINUE;
+	return RX_CONTINUE;
 }
 
-static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb)
+static int wep_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 {
 	if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
 		if (ieee80211_wep_encrypt(tx->local, skb, tx->key))
 			return -1;
 	} else {
-		tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
+		tx->control->key_idx = tx->key->conf.hw_key_idx;
 		if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) {
 			if (!ieee80211_wep_add_iv(tx->local, skb, tx->key))
 				return -1;
@@ -346,28 +346,28 @@ static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb)
 	return 0;
 }
 
-ieee80211_txrx_result
-ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx)
+ieee80211_tx_result
+ieee80211_crypto_wep_encrypt(struct ieee80211_tx_data *tx)
 {
-	tx->u.tx.control->iv_len = WEP_IV_LEN;
-	tx->u.tx.control->icv_len = WEP_ICV_LEN;
-	ieee80211_tx_set_iswep(tx);
+	tx->control->iv_len = WEP_IV_LEN;
+	tx->control->icv_len = WEP_ICV_LEN;
+	ieee80211_tx_set_protected(tx);
 
 	if (wep_encrypt_skb(tx, tx->skb) < 0) {
 		I802_DEBUG_INC(tx->local->tx_handlers_drop_wep);
-		return TXRX_DROP;
+		return TX_DROP;
 	}
 
-	if (tx->u.tx.extra_frag) {
+	if (tx->extra_frag) {
 		int i;
-		for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
-			if (wep_encrypt_skb(tx, tx->u.tx.extra_frag[i]) < 0) {
+		for (i = 0; i < tx->num_extra_frag; i++) {
+			if (wep_encrypt_skb(tx, tx->extra_frag[i]) < 0) {
 				I802_DEBUG_INC(tx->local->
 					       tx_handlers_drop_wep);
-				return TXRX_DROP;
+				return TX_DROP;
 			}
 		}
 	}
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
diff --git a/net/mac80211/wep.h b/net/mac80211/wep.h
index 785fbb4e0dd7..363779c50658 100644
--- a/net/mac80211/wep.h
+++ b/net/mac80211/wep.h
@@ -14,7 +14,7 @@
 #include <linux/skbuff.h>
 #include <linux/types.h>
 #include "ieee80211_i.h"
-#include "ieee80211_key.h"
+#include "key.h"
 
 int ieee80211_wep_init(struct ieee80211_local *local);
 void ieee80211_wep_free(struct ieee80211_local *local);
@@ -28,9 +28,9 @@ int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
 			  struct ieee80211_key *key);
 u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key);
 
-ieee80211_txrx_result
-ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx);
-ieee80211_txrx_result
-ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx);
+ieee80211_rx_result
+ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx);
+ieee80211_tx_result
+ieee80211_crypto_wep_encrypt(struct ieee80211_tx_data *tx);
 
 #endif /* WEP_H */
diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/wext.c
index 5024d3733834..76e1de1dc735 100644
--- a/net/mac80211/ieee80211_ioctl.c
+++ b/net/mac80211/wext.c
@@ -21,8 +21,8 @@
 
 #include <net/mac80211.h>
 #include "ieee80211_i.h"
-#include "ieee80211_led.h"
-#include "ieee80211_rate.h"
+#include "led.h"
+#include "rate.h"
 #include "wpa.h"
 #include "aes_ccm.h"
 
@@ -33,10 +33,10 @@ static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
 				    size_t key_len)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	int ret = 0;
 	struct sta_info *sta;
 	struct ieee80211_key *key;
 	struct ieee80211_sub_if_data *sdata;
+	int err;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
@@ -46,59 +46,65 @@ static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
 		return -EINVAL;
 	}
 
-	if (is_broadcast_ether_addr(sta_addr)) {
-		sta = NULL;
-		key = sdata->keys[idx];
-	} else {
-		set_tx_key = 0;
-		/*
-		 * According to the standard, the key index of a pairwise
-		 * key must be zero. However, some AP are broken when it
-		 * comes to WEP key indices, so we work around this.
-		 */
-		if (idx != 0 && alg != ALG_WEP) {
-			printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for "
-			       "individual key\n", dev->name);
-			return -EINVAL;
-		}
+	if (remove) {
+		rcu_read_lock();
 
-		sta = sta_info_get(local, sta_addr);
-		if (!sta) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-			DECLARE_MAC_BUF(mac);
-			printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
-			       "%s\n",
-			       dev->name, print_mac(mac, sta_addr));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
+		err = 0;
 
-			return -ENOENT;
+		if (is_broadcast_ether_addr(sta_addr)) {
+			key = sdata->keys[idx];
+		} else {
+			sta = sta_info_get(local, sta_addr);
+			if (!sta) {
+				err = -ENOENT;
+				goto out_unlock;
+			}
+			key = sta->key;
 		}
 
-		key = sta->key;
-	}
-
-	if (remove) {
 		ieee80211_key_free(key);
-		key = NULL;
 	} else {
-		/*
-		 * Automatically frees any old key if present.
-		 */
-		key = ieee80211_key_alloc(sdata, sta, alg, idx, key_len, _key);
-		if (!key) {
-			ret = -ENOMEM;
-			goto err_out;
+		key = ieee80211_key_alloc(alg, idx, key_len, _key);
+		if (!key)
+			return -ENOMEM;
+
+		sta = NULL;
+		err = 0;
+
+		rcu_read_lock();
+
+		if (!is_broadcast_ether_addr(sta_addr)) {
+			set_tx_key = 0;
+			/*
+			 * According to the standard, the key index of a
+			 * pairwise key must be zero. However, some AP are
+			 * broken when it comes to WEP key indices, so we
+			 * work around this.
+			 */
+			if (idx != 0 && alg != ALG_WEP) {
+				ieee80211_key_free(key);
+				err = -EINVAL;
+				goto out_unlock;
+			}
+
+			sta = sta_info_get(local, sta_addr);
+			if (!sta) {
+				ieee80211_key_free(key);
+				err = -ENOENT;
+				goto out_unlock;
+			}
 		}
+
+		ieee80211_key_link(key, sdata, sta);
+
+		if (set_tx_key || (!sta && !sdata->default_key && key))
+			ieee80211_set_default_key(sdata, idx);
 	}
 
-	if (set_tx_key || (!sta && !sdata->default_key && key))
-		ieee80211_set_default_key(sdata, idx);
+ out_unlock:
+	rcu_read_unlock();
 
-	ret = 0;
- err_out:
-	if (sta)
-		sta_info_put(sta);
-	return ret;
+	return err;
 }
 
 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
@@ -129,22 +135,7 @@ static int ieee80211_ioctl_giwname(struct net_device *dev,
 				   struct iw_request_info *info,
 				   char *name, char *extra)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
-	switch (local->hw.conf.phymode) {
-	case MODE_IEEE80211A:
-		strcpy(name, "IEEE 802.11a");
-		break;
-	case MODE_IEEE80211B:
-		strcpy(name, "IEEE 802.11b");
-		break;
-	case MODE_IEEE80211G:
-		strcpy(name, "IEEE 802.11g");
-		break;
-	default:
-		strcpy(name, "IEEE 802.11");
-		break;
-	}
+	strcpy(name, "IEEE 802.11");
 
 	return 0;
 }
@@ -156,7 +147,7 @@ static int ieee80211_ioctl_giwrange(struct net_device *dev,
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct iw_range *range = (struct iw_range *) extra;
-	struct ieee80211_hw_mode *mode = NULL;
+	enum ieee80211_band band;
 	int c = 0;
 
 	data->length = sizeof(struct iw_range);
@@ -191,24 +182,27 @@ static int ieee80211_ioctl_giwrange(struct net_device *dev,
 	range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
 			  IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
 
-	list_for_each_entry(mode, &local->modes_list, list) {
-		int i = 0;
 
-		if (!(local->enabled_modes & (1 << mode->mode)) ||
-		    (local->hw_modes & local->enabled_modes &
-		     (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
+	for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
+		int i;
+		struct ieee80211_supported_band *sband;
+
+		sband = local->hw.wiphy->bands[band];
+
+		if (!sband)
 			continue;
 
-		while (i < mode->num_channels && c < IW_MAX_FREQUENCIES) {
-			struct ieee80211_channel *chan = &mode->channels[i];
+		for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
+			struct ieee80211_channel *chan = &sband->channels[i];
 
-			if (chan->flag & IEEE80211_CHAN_W_SCAN) {
-				range->freq[c].i = chan->chan;
-				range->freq[c].m = chan->freq * 100000;
-				range->freq[c].e = 1;
+			if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
+				range->freq[c].i =
+					ieee80211_frequency_to_channel(
+						chan->center_freq);
+				range->freq[c].m = chan->center_freq;
+				range->freq[c].e = 6;
 				c++;
 			}
-			i++;
 		}
 	}
 	range->num_channels = c;
@@ -242,6 +236,9 @@ static int ieee80211_ioctl_siwmode(struct net_device *dev,
 	case IW_MODE_ADHOC:
 		type = IEEE80211_IF_TYPE_IBSS;
 		break;
+	case IW_MODE_REPEAT:
+		type = IEEE80211_IF_TYPE_WDS;
+		break;
 	case IW_MODE_MONITOR:
 		type = IEEE80211_IF_TYPE_MNTR;
 		break;
@@ -294,31 +291,17 @@ static int ieee80211_ioctl_giwmode(struct net_device *dev,
 	return 0;
 }
 
-int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
+int ieee80211_set_freq(struct ieee80211_local *local, int freqMHz)
 {
-	struct ieee80211_hw_mode *mode;
-	int c, set = 0;
 	int ret = -EINVAL;
+	struct ieee80211_channel *chan;
 
-	list_for_each_entry(mode, &local->modes_list, list) {
-		if (!(local->enabled_modes & (1 << mode->mode)))
-			continue;
-		for (c = 0; c < mode->num_channels; c++) {
-			struct ieee80211_channel *chan = &mode->channels[c];
-			if (chan->flag & IEEE80211_CHAN_W_SCAN &&
-			    ((chan->chan == channel) || (chan->freq == freq))) {
-				local->oper_channel = chan;
-				local->oper_hw_mode = mode;
-				set = 1;
-				break;
-			}
-		}
-		if (set)
-			break;
-	}
+	chan = ieee80211_get_channel(local->hw.wiphy, freqMHz);
 
-	if (set) {
-		if (local->sta_sw_scanning)
+	if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
+		local->oper_channel = chan;
+
+		if (local->sta_sw_scanning || local->sta_hw_scanning)
 			ret = 0;
 		else
 			ret = ieee80211_hw_config(local);
@@ -347,13 +330,14 @@ static int ieee80211_ioctl_siwfreq(struct net_device *dev,
 					IEEE80211_STA_AUTO_CHANNEL_SEL;
 			return 0;
 		} else
-			return ieee80211_set_channel(local, freq->m, -1);
+			return ieee80211_set_freq(local,
+				ieee80211_channel_to_frequency(freq->m));
 	} else {
 		int i, div = 1000000;
 		for (i = 0; i < freq->e; i++)
 			div /= 10;
 		if (div > 0)
-			return ieee80211_set_channel(local, -1, freq->m / div);
+			return ieee80211_set_freq(local, freq->m / div);
 		else
 			return -EINVAL;
 	}
@@ -366,10 +350,7 @@ static int ieee80211_ioctl_giwfreq(struct net_device *dev,
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 
-	/* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
-	 * driver for the current channel with firmware-based management */
-
-	freq->m = local->hw.conf.freq;
+	freq->m = local->hw.conf.channel->center_freq;
 	freq->e = 6;
 
 	return 0;
@@ -480,10 +461,20 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
 		ieee80211_sta_req_auth(dev, &sdata->u.sta);
 		return 0;
 	} else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
-		if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
-			   ETH_ALEN) == 0)
-			return 0;
-		return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
+		/*
+		 * If it is necessary to update the WDS peer address
+		 * while the interface is running, then we need to do
+		 * more work here, namely if it is running we need to
+		 * add a new and remove the old STA entry, this is
+		 * normally handled by _open() and _stop().
+		 */
+		if (netif_running(dev))
+			return -EBUSY;
+
+		memcpy(&sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
+		       ETH_ALEN);
+
+		return 0;
 	}
 
 	return -EOPNOTSUPP;
@@ -526,6 +517,7 @@ static int ieee80211_ioctl_siwscan(struct net_device *dev,
 
 	if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
 	    sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
+	    sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT &&
 	    sdata->vif.type != IEEE80211_IF_TYPE_AP)
 		return -EOPNOTSUPP;
 
@@ -566,15 +558,17 @@ static int ieee80211_ioctl_siwrate(struct net_device *dev,
 				  struct iw_param *rate, char *extra)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_hw_mode *mode;
-	int i;
+	int i, err = -EINVAL;
 	u32 target_rate = rate->value / 100000;
 	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_supported_band *sband;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	if (!sdata->bss)
 		return -ENODEV;
-	mode = local->oper_hw_mode;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
 	/* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
 	 * target_rate = X, rate->fixed = 1 means only rate X
 	 * target_rate = X, rate->fixed = 0 means all rates <= X */
@@ -582,18 +576,20 @@ static int ieee80211_ioctl_siwrate(struct net_device *dev,
 	sdata->bss->force_unicast_rateidx = -1;
 	if (rate->value < 0)
 		return 0;
-	for (i=0; i < mode->num_rates; i++) {
-		struct ieee80211_rate *rates = &mode->rates[i];
-		int this_rate = rates->rate;
+
+	for (i=0; i< sband->n_bitrates; i++) {
+		struct ieee80211_rate *brate = &sband->bitrates[i];
+		int this_rate = brate->bitrate;
 
 		if (target_rate == this_rate) {
 			sdata->bss->max_ratectrl_rateidx = i;
 			if (rate->fixed)
 				sdata->bss->force_unicast_rateidx = i;
-			return 0;
+			err = 0;
+			break;
 		}
 	}
-	return -EINVAL;
+	return err;
 }
 
 static int ieee80211_ioctl_giwrate(struct net_device *dev,
@@ -603,19 +599,31 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev,
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct sta_info *sta;
 	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_supported_band *sband;
 
 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
-		sta = sta_info_get(local, sdata->u.sta.bssid);
-	else
+
+	if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
 		return -EOPNOTSUPP;
-	if (!sta)
-		return -ENODEV;
-	if (sta->txrate < local->oper_hw_mode->num_rates)
-		rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
+
+	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+	rcu_read_lock();
+
+	sta = sta_info_get(local, sdata->u.sta.bssid);
+
+	if (sta && sta->txrate_idx < sband->n_bitrates)
+		rate->value = sband->bitrates[sta->txrate_idx].bitrate;
 	else
 		rate->value = 0;
-	sta_info_put(sta);
+
+	rcu_read_unlock();
+
+	if (!sta)
+		return -ENODEV;
+
+	rate->value *= 100000;
+
 	return 0;
 }
 
@@ -625,7 +633,7 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	bool need_reconfig = 0;
-	u8 new_power_level;
+	int new_power_level;
 
 	if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 		return -EINVAL;
@@ -635,13 +643,15 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
 	if (data->txpower.fixed) {
 		new_power_level = data->txpower.value;
 	} else {
-		/* Automatic power level. Get the px power from the current
-		 * channel. */
-		struct ieee80211_channel* chan = local->oper_channel;
+		/*
+		 * Automatic power level. Use maximum power for the current
+		 * channel. Should be part of rate control.
+		 */
+		struct ieee80211_channel* chan = local->hw.conf.channel;
 		if (!chan)
 			return -EINVAL;
 
-		new_power_level = chan->power_level;
+		new_power_level = chan->max_power;
 	}
 
 	if (local->hw.conf.power_level != new_power_level) {
@@ -973,6 +983,8 @@ static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct sta_info *sta = NULL;
 
+	rcu_read_lock();
+
 	if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
 	    sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
 		sta = sta_info_get(local, sdata->u.sta.bssid);
@@ -988,8 +1000,10 @@ static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev
 		wstats->qual.qual = sta->last_signal;
 		wstats->qual.noise = sta->last_noise;
 		wstats->qual.updated = local->wstats_flags;
-		sta_info_put(sta);
 	}
+
+	rcu_read_unlock();
+
 	return wstats;
 }
 
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 4e236599dd31..4e94e4026e78 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -19,10 +19,13 @@
 #include "wme.h"
 
 /* maximum number of hardware queues we support. */
-#define TC_80211_MAX_QUEUES 8
+#define TC_80211_MAX_QUEUES 16
+
+const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
 
 struct ieee80211_sched_data
 {
+	unsigned long qdisc_pool[BITS_TO_LONGS(TC_80211_MAX_QUEUES)];
 	struct tcf_proto *filter_list;
 	struct Qdisc *queues[TC_80211_MAX_QUEUES];
 	struct sk_buff_head requeued[TC_80211_MAX_QUEUES];
@@ -98,7 +101,6 @@ static inline int classify80211(struct sk_buff *skb, struct Qdisc *qd)
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 	unsigned short fc = le16_to_cpu(hdr->frame_control);
 	int qos;
-	const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
 
 	/* see if frame is data or non data frame */
 	if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)) {
@@ -146,9 +148,26 @@ static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
 	unsigned short fc = le16_to_cpu(hdr->frame_control);
 	struct Qdisc *qdisc;
 	int err, queue;
+	struct sta_info *sta;
+	u8 tid;
 
 	if (pkt_data->flags & IEEE80211_TXPD_REQUEUE) {
-		skb_queue_tail(&q->requeued[pkt_data->queue], skb);
+		queue = pkt_data->queue;
+		rcu_read_lock();
+		sta = sta_info_get(local, hdr->addr1);
+		tid = skb->priority & QOS_CONTROL_TAG1D_MASK;
+		if (sta) {
+			int ampdu_queue = sta->tid_to_tx_q[tid];
+			if ((ampdu_queue < local->hw.queues) &&
+			    test_bit(ampdu_queue, q->qdisc_pool)) {
+				queue = ampdu_queue;
+				pkt_data->flags |= IEEE80211_TXPD_AMPDU;
+			} else {
+				pkt_data->flags &= ~IEEE80211_TXPD_AMPDU;
+			}
+		}
+		rcu_read_unlock();
+		skb_queue_tail(&q->requeued[queue], skb);
 		qd->q.qlen++;
 		return 0;
 	}
@@ -159,14 +178,31 @@ static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
 	 */
 	if (WLAN_FC_IS_QOS_DATA(fc)) {
 		u8 *p = skb->data + ieee80211_get_hdrlen(fc) - 2;
-		u8 qos_hdr = skb->priority & QOS_CONTROL_TAG1D_MASK;
+		u8 ack_policy = 0;
+		tid = skb->priority & QOS_CONTROL_TAG1D_MASK;
 		if (local->wifi_wme_noack_test)
-			qos_hdr |= QOS_CONTROL_ACK_POLICY_NOACK <<
+			ack_policy |= QOS_CONTROL_ACK_POLICY_NOACK <<
 					QOS_CONTROL_ACK_POLICY_SHIFT;
 		/* qos header is 2 bytes, second reserved */
-		*p = qos_hdr;
+		*p = ack_policy | tid;
 		p++;
 		*p = 0;
+
+		rcu_read_lock();
+
+		sta = sta_info_get(local, hdr->addr1);
+		if (sta) {
+			int ampdu_queue = sta->tid_to_tx_q[tid];
+			if ((ampdu_queue < local->hw.queues) &&
+				test_bit(ampdu_queue, q->qdisc_pool)) {
+				queue = ampdu_queue;
+				pkt_data->flags |= IEEE80211_TXPD_AMPDU;
+			} else {
+				pkt_data->flags &= ~IEEE80211_TXPD_AMPDU;
+			}
+		}
+
+		rcu_read_unlock();
 	}
 
 	if (unlikely(queue >= local->hw.queues)) {
@@ -184,6 +220,7 @@ static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
 			kfree_skb(skb);
 			err = NET_XMIT_DROP;
 	} else {
+		tid = skb->priority & QOS_CONTROL_TAG1D_MASK;
 		pkt_data->queue = (unsigned int) queue;
 		qdisc = q->queues[queue];
 		err = qdisc->enqueue(skb, qdisc);
@@ -235,10 +272,11 @@ static struct sk_buff *wme_qdiscop_dequeue(struct Qdisc* qd)
 	/* check all the h/w queues in numeric/priority order */
 	for (queue = 0; queue < hw->queues; queue++) {
 		/* see if there is room in this hardware queue */
-		if (test_bit(IEEE80211_LINK_STATE_XOFF,
-			     &local->state[queue]) ||
-		    test_bit(IEEE80211_LINK_STATE_PENDING,
-			     &local->state[queue]))
+		if ((test_bit(IEEE80211_LINK_STATE_XOFF,
+				&local->state[queue])) ||
+		    (test_bit(IEEE80211_LINK_STATE_PENDING,
+				&local->state[queue])) ||
+			 (!test_bit(queue, q->qdisc_pool)))
 			continue;
 
 		/* there is space - try and get a frame */
@@ -360,6 +398,10 @@ static int wme_qdiscop_init(struct Qdisc *qd, struct nlattr *opt)
 		}
 	}
 
+	/* reserve all legacy QoS queues */
+	for (i = 0; i < min(IEEE80211_TX_QUEUE_DATA4, queues); i++)
+		set_bit(i, q->qdisc_pool);
+
 	return err;
 }
 
@@ -605,3 +647,80 @@ void ieee80211_wme_unregister(void)
 {
 	unregister_qdisc(&wme_qdisc_ops);
 }
+
+int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
+			struct sta_info *sta, u16 tid)
+{
+	int i;
+	struct ieee80211_sched_data *q =
+			qdisc_priv(local->mdev->qdisc_sleeping);
+	DECLARE_MAC_BUF(mac);
+
+	/* prepare the filter and save it for the SW queue
+	 * matching the recieved HW queue */
+
+	/* try to get a Qdisc from the pool */
+	for (i = IEEE80211_TX_QUEUE_BEACON; i < local->hw.queues; i++)
+		if (!test_and_set_bit(i, q->qdisc_pool)) {
+			ieee80211_stop_queue(local_to_hw(local), i);
+			sta->tid_to_tx_q[tid] = i;
+
+			/* IF there are already pending packets
+			 * on this tid first we need to drain them
+			 * on the previous queue
+			 * since HT is strict in order */
+#ifdef CONFIG_MAC80211_HT_DEBUG
+			if (net_ratelimit())
+				printk(KERN_DEBUG "allocated aggregation queue"
+					" %d tid %d addr %s pool=0x%lX",
+					i, tid, print_mac(mac, sta->addr),
+					q->qdisc_pool[0]);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+			return 0;
+		}
+
+	return -EAGAIN;
+}
+
+/**
+ * the caller needs to hold local->mdev->queue_lock
+ */
+void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local,
+				   struct sta_info *sta, u16 tid,
+				   u8 requeue)
+{
+	struct ieee80211_sched_data *q =
+		qdisc_priv(local->mdev->qdisc_sleeping);
+	int agg_queue = sta->tid_to_tx_q[tid];
+
+	/* return the qdisc to the pool */
+	clear_bit(agg_queue, q->qdisc_pool);
+	sta->tid_to_tx_q[tid] = local->hw.queues;
+
+	if (requeue)
+		ieee80211_requeue(local, agg_queue);
+	else
+		q->queues[agg_queue]->ops->reset(q->queues[agg_queue]);
+}
+
+void ieee80211_requeue(struct ieee80211_local *local, int queue)
+{
+	struct Qdisc *root_qd = local->mdev->qdisc_sleeping;
+	struct ieee80211_sched_data *q = qdisc_priv(root_qd);
+	struct Qdisc *qdisc = q->queues[queue];
+	struct sk_buff *skb = NULL;
+	u32 len = qdisc->q.qlen;
+
+	if (!qdisc || !qdisc->dequeue)
+		return;
+
+	printk(KERN_DEBUG "requeue: qlen = %d\n", qdisc->q.qlen);
+	for (len = qdisc->q.qlen; len > 0; len--) {
+		skb = qdisc->dequeue(qdisc);
+		root_qd->q.qlen--;
+		/* packet will be classified again and */
+		/* skb->packet_data->queue will be overridden if needed */
+		if (skb)
+			wme_qdiscop_enqueue(skb, root_qd);
+	}
+}
diff --git a/net/mac80211/wme.h b/net/mac80211/wme.h
index 76c713a6450c..fcc6b05508cc 100644
--- a/net/mac80211/wme.h
+++ b/net/mac80211/wme.h
@@ -24,6 +24,8 @@
 
 #define QOS_CONTROL_TAG1D_MASK 0x07
 
+extern const int ieee802_1d_to_ac[8];
+
 static inline int WLAN_FC_IS_QOS_DATA(u16 fc)
 {
 	return (fc & 0x8C) == 0x88;
@@ -32,7 +34,12 @@ static inline int WLAN_FC_IS_QOS_DATA(u16 fc)
 #ifdef CONFIG_NET_SCHED
 void ieee80211_install_qdisc(struct net_device *dev);
 int ieee80211_qdisc_installed(struct net_device *dev);
-
+int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
+			       struct sta_info *sta, u16 tid);
+void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local,
+				   struct sta_info *sta, u16 tid,
+				   u8 requeue);
+void ieee80211_requeue(struct ieee80211_local *local, int queue);
 int ieee80211_wme_register(void);
 void ieee80211_wme_unregister(void);
 #else
@@ -43,7 +50,19 @@ static inline int ieee80211_qdisc_installed(struct net_device *dev)
 {
 	return 0;
 }
-
+static inline int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
+					     struct sta_info *sta, u16 tid)
+{
+	return -EAGAIN;
+}
+static inline void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local,
+						 struct sta_info *sta, u16 tid,
+						 u8 requeue)
+{
+}
+static inline void ieee80211_requeue(struct ieee80211_local *local, int queue)
+{
+}
 static inline int ieee80211_wme_register(void)
 {
 	return 0;
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 6f04311cf0a0..45709ada8fee 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -70,8 +70,8 @@ static int ieee80211_get_hdr_info(const struct sk_buff *skb, u8 **sa, u8 **da,
 }
 
 
-ieee80211_txrx_result
-ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx)
+ieee80211_tx_result
+ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx)
 {
 	u8 *data, *sa, *da, *key, *mic, qos_tid;
 	size_t data_len;
@@ -84,18 +84,18 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx)
 
 	if (!tx->key || tx->key->conf.alg != ALG_TKIP || skb->len < 24 ||
 	    !WLAN_FC_DATA_PRESENT(fc))
-		return TXRX_CONTINUE;
+		return TX_CONTINUE;
 
 	if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len))
-		return TXRX_DROP;
+		return TX_DROP;
 
 	if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
-	    !(tx->flags & IEEE80211_TXRXD_FRAGMENTED) &&
+	    !(tx->flags & IEEE80211_TX_FRAGMENTED) &&
 	    !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) &&
 	    !wpa_test) {
 		/* hwaccel - with no need for preallocated room for Michael MIC
 		 */
-		return TXRX_CONTINUE;
+		return TX_CONTINUE;
 	}
 
 	if (skb_tailroom(skb) < MICHAEL_MIC_LEN) {
@@ -105,7 +105,7 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx)
 					      GFP_ATOMIC))) {
 			printk(KERN_DEBUG "%s: failed to allocate more memory "
 			       "for Michael MIC\n", tx->dev->name);
-			return TXRX_DROP;
+			return TX_DROP;
 		}
 	}
 
@@ -119,12 +119,12 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx)
 	mic = skb_put(skb, MICHAEL_MIC_LEN);
 	michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
 
-ieee80211_txrx_result
-ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
+ieee80211_rx_result
+ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx)
 {
 	u8 *data, *sa, *da, *key = NULL, qos_tid;
 	size_t data_len;
@@ -139,16 +139,16 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
 	/*
 	 * No way to verify the MIC if the hardware stripped it
 	 */
-	if (rx->u.rx.status->flag & RX_FLAG_MMIC_STRIPPED)
-		return TXRX_CONTINUE;
+	if (rx->status->flag & RX_FLAG_MMIC_STRIPPED)
+		return RX_CONTINUE;
 
 	if (!rx->key || rx->key->conf.alg != ALG_TKIP ||
 	    !(rx->fc & IEEE80211_FCTL_PROTECTED) || !WLAN_FC_DATA_PRESENT(fc))
-		return TXRX_CONTINUE;
+		return RX_CONTINUE;
 
 	if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len)
 	    || data_len < MICHAEL_MIC_LEN)
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 
 	data_len -= MICHAEL_MIC_LEN;
 
@@ -161,29 +161,29 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
 				 ALG_TKIP_TEMP_AUTH_TX_MIC_KEY];
 	michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
 	if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) {
-		if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
-			return TXRX_DROP;
+		if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+			return RX_DROP_UNUSABLE;
 
 		printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from "
 		       "%s\n", rx->dev->name, print_mac(mac, sa));
 
 		mac80211_ev_michael_mic_failure(rx->dev, rx->key->conf.keyidx,
 						(void *) skb->data);
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 	}
 
 	/* remove Michael MIC from payload */
 	skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
 
 	/* update IV in key information to be able to detect replays */
-	rx->key->u.tkip.iv32_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv32;
-	rx->key->u.tkip.iv16_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv16;
+	rx->key->u.tkip.iv32_rx[rx->queue] = rx->tkip_iv32;
+	rx->key->u.tkip.iv16_rx[rx->queue] = rx->tkip_iv16;
 
-	return TXRX_CONTINUE;
+	return RX_CONTINUE;
 }
 
 
-static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,
+static int tkip_encrypt_skb(struct ieee80211_tx_data *tx,
 			    struct sk_buff *skb, int test)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
@@ -228,7 +228,7 @@ static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,
 					    0x7f),
 				      (u8) key->u.tkip.iv16);
 
-		tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
+		tx->control->key_idx = tx->key->conf.hw_key_idx;
 		return 0;
 	}
 
@@ -242,42 +242,42 @@ static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,
 }
 
 
-ieee80211_txrx_result
-ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx)
+ieee80211_tx_result
+ieee80211_crypto_tkip_encrypt(struct ieee80211_tx_data *tx)
 {
 	struct sk_buff *skb = tx->skb;
 	int wpa_test = 0, test = 0;
 
-	tx->u.tx.control->icv_len = TKIP_ICV_LEN;
-	tx->u.tx.control->iv_len = TKIP_IV_LEN;
-	ieee80211_tx_set_iswep(tx);
+	tx->control->icv_len = TKIP_ICV_LEN;
+	tx->control->iv_len = TKIP_IV_LEN;
+	ieee80211_tx_set_protected(tx);
 
 	if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
 	    !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) &&
 	    !wpa_test) {
 		/* hwaccel - with no need for preallocated room for IV/ICV */
-		tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
-		return TXRX_CONTINUE;
+		tx->control->key_idx = tx->key->conf.hw_key_idx;
+		return TX_CONTINUE;
 	}
 
 	if (tkip_encrypt_skb(tx, skb, test) < 0)
-		return TXRX_DROP;
+		return TX_DROP;
 
-	if (tx->u.tx.extra_frag) {
+	if (tx->extra_frag) {
 		int i;
-		for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
-			if (tkip_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
+		for (i = 0; i < tx->num_extra_frag; i++) {
+			if (tkip_encrypt_skb(tx, tx->extra_frag[i], test)
 			    < 0)
-				return TXRX_DROP;
+				return TX_DROP;
 		}
 	}
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
 
-ieee80211_txrx_result
-ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx)
+ieee80211_rx_result
+ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
 	u16 fc;
@@ -290,19 +290,19 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx)
 	hdrlen = ieee80211_get_hdrlen(fc);
 
 	if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
-		return TXRX_CONTINUE;
+		return RX_CONTINUE;
 
 	if (!rx->sta || skb->len - hdrlen < 12)
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 
-	if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED) {
-		if (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) {
+	if (rx->status->flag & RX_FLAG_DECRYPTED) {
+		if (rx->status->flag & RX_FLAG_IV_STRIPPED) {
 			/*
 			 * Hardware took care of all processing, including
 			 * replay protection, and stripped the ICV/IV so
 			 * we cannot do any checks here.
 			 */
-			return TXRX_CONTINUE;
+			return RX_CONTINUE;
 		}
 
 		/* let TKIP code verify IV, but skip decryption */
@@ -312,9 +312,9 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx)
 	res = ieee80211_tkip_decrypt_data(rx->local->wep_rx_tfm,
 					  key, skb->data + hdrlen,
 					  skb->len - hdrlen, rx->sta->addr,
-					  hwaccel, rx->u.rx.queue,
-					  &rx->u.rx.tkip_iv32,
-					  &rx->u.rx.tkip_iv16);
+					  hdr->addr1, hwaccel, rx->queue,
+					  &rx->tkip_iv32,
+					  &rx->tkip_iv16);
 	if (res != TKIP_DECRYPT_OK || wpa_test) {
 #ifdef CONFIG_MAC80211_DEBUG
 		if (net_ratelimit())
@@ -322,7 +322,7 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx)
 			       "frame from %s (res=%d)\n", rx->dev->name,
 			       print_mac(mac, rx->sta->addr), res);
 #endif /* CONFIG_MAC80211_DEBUG */
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 	}
 
 	/* Trim ICV */
@@ -332,7 +332,7 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx)
 	memmove(skb->data + TKIP_IV_LEN, skb->data, hdrlen);
 	skb_pull(skb, TKIP_IV_LEN);
 
-	return TXRX_CONTINUE;
+	return RX_CONTINUE;
 }
 
 
@@ -429,7 +429,7 @@ static inline int ccmp_hdr2pn(u8 *pn, u8 *hdr)
 }
 
 
-static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx,
+static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx,
 			    struct sk_buff *skb, int test)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
@@ -478,7 +478,7 @@ static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx,
 
 	if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
 		/* hwaccel - with preallocated room for CCMP header */
-		tx->u.tx.control->key_idx = key->conf.hw_key_idx;
+		tx->control->key_idx = key->conf.hw_key_idx;
 		return 0;
 	}
 
@@ -491,42 +491,42 @@ static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx,
 }
 
 
-ieee80211_txrx_result
-ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx)
+ieee80211_tx_result
+ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx)
 {
 	struct sk_buff *skb = tx->skb;
 	int test = 0;
 
-	tx->u.tx.control->icv_len = CCMP_MIC_LEN;
-	tx->u.tx.control->iv_len = CCMP_HDR_LEN;
-	ieee80211_tx_set_iswep(tx);
+	tx->control->icv_len = CCMP_MIC_LEN;
+	tx->control->iv_len = CCMP_HDR_LEN;
+	ieee80211_tx_set_protected(tx);
 
 	if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
 	    !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 		/* hwaccel - with no need for preallocated room for CCMP "
 		 * header or MIC fields */
-		tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
-		return TXRX_CONTINUE;
+		tx->control->key_idx = tx->key->conf.hw_key_idx;
+		return TX_CONTINUE;
 	}
 
 	if (ccmp_encrypt_skb(tx, skb, test) < 0)
-		return TXRX_DROP;
+		return TX_DROP;
 
-	if (tx->u.tx.extra_frag) {
+	if (tx->extra_frag) {
 		int i;
-		for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
-			if (ccmp_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
+		for (i = 0; i < tx->num_extra_frag; i++) {
+			if (ccmp_encrypt_skb(tx, tx->extra_frag[i], test)
 			    < 0)
-				return TXRX_DROP;
+				return TX_DROP;
 		}
 	}
 
-	return TXRX_CONTINUE;
+	return TX_CONTINUE;
 }
 
 
-ieee80211_txrx_result
-ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx)
+ieee80211_rx_result
+ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
 	u16 fc;
@@ -541,21 +541,21 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx)
 	hdrlen = ieee80211_get_hdrlen(fc);
 
 	if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
-		return TXRX_CONTINUE;
+		return RX_CONTINUE;
 
 	data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
 	if (!rx->sta || data_len < 0)
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 
-	if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
-	    (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED))
-		return TXRX_CONTINUE;
+	if ((rx->status->flag & RX_FLAG_DECRYPTED) &&
+	    (rx->status->flag & RX_FLAG_IV_STRIPPED))
+		return RX_CONTINUE;
 
 	(void) ccmp_hdr2pn(pn, skb->data + hdrlen);
 
-	if (memcmp(pn, key->u.ccmp.rx_pn[rx->u.rx.queue], CCMP_PN_LEN) <= 0) {
+	if (memcmp(pn, key->u.ccmp.rx_pn[rx->queue], CCMP_PN_LEN) <= 0) {
 #ifdef CONFIG_MAC80211_DEBUG
-		u8 *ppn = key->u.ccmp.rx_pn[rx->u.rx.queue];
+		u8 *ppn = key->u.ccmp.rx_pn[rx->queue];
 
 		printk(KERN_DEBUG "%s: CCMP replay detected for RX frame from "
 		       "%s (RX PN %02x%02x%02x%02x%02x%02x <= prev. PN "
@@ -565,10 +565,10 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx)
 		       ppn[0], ppn[1], ppn[2], ppn[3], ppn[4], ppn[5]);
 #endif /* CONFIG_MAC80211_DEBUG */
 		key->u.ccmp.replays++;
-		return TXRX_DROP;
+		return RX_DROP_UNUSABLE;
 	}
 
-	if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) {
+	if (!(rx->status->flag & RX_FLAG_DECRYPTED)) {
 		/* hardware didn't decrypt/verify MIC */
 		u8 *scratch, *b_0, *aad;
 
@@ -589,16 +589,16 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx)
 				       "for RX frame from %s\n", rx->dev->name,
 				       print_mac(mac, rx->sta->addr));
 #endif /* CONFIG_MAC80211_DEBUG */
-			return TXRX_DROP;
+			return RX_DROP_UNUSABLE;
 		}
 	}
 
-	memcpy(key->u.ccmp.rx_pn[rx->u.rx.queue], pn, CCMP_PN_LEN);
+	memcpy(key->u.ccmp.rx_pn[rx->queue], pn, CCMP_PN_LEN);
 
 	/* Remove CCMP header and MIC */
 	skb_trim(skb, skb->len - CCMP_MIC_LEN);
 	memmove(skb->data + CCMP_HDR_LEN, skb->data, hdrlen);
 	skb_pull(skb, CCMP_HDR_LEN);
 
-	return TXRX_CONTINUE;
+	return RX_CONTINUE;
 }
diff --git a/net/mac80211/wpa.h b/net/mac80211/wpa.h
index 49d80cf0cd75..d42d221d8a1d 100644
--- a/net/mac80211/wpa.h
+++ b/net/mac80211/wpa.h
@@ -13,19 +13,19 @@
 #include <linux/types.h>
 #include "ieee80211_i.h"
 
-ieee80211_txrx_result
-ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx);
-ieee80211_txrx_result
-ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx);
+ieee80211_tx_result
+ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx);
+ieee80211_rx_result
+ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx);
 
-ieee80211_txrx_result
-ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx);
-ieee80211_txrx_result
-ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx);
+ieee80211_tx_result
+ieee80211_crypto_tkip_encrypt(struct ieee80211_tx_data *tx);
+ieee80211_rx_result
+ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx);
 
-ieee80211_txrx_result
-ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx);
-ieee80211_txrx_result
-ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx);
+ieee80211_tx_result
+ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx);
+ieee80211_rx_result
+ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx);
 
 #endif /* WPA_H */