Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 into lvs-next-2.6

12 files changed, 179 insertions, 295 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index a279bf1dc9b..6fc5e7361f2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -36,8 +36,6 @@
 
 #include <linux/workqueue.h>
 
-#include "../net/mac80211/rate.h"
-
 #include "iwl-3945.h"
 
 #define RS_NAME "iwl-3945-rs"
@@ -319,10 +317,10 @@ static void iwl3945_collect_tx_data(struct iwl3945_rs_sta *rs_sta,
 	}
 }
 
-static void rs_rate_init(void *priv_rate, void *priv_sta,
-			 struct ieee80211_local *local, struct sta_info *sta)
+static void rs_rate_init(void *priv, struct ieee80211_supported_band *sband,
+			 struct ieee80211_sta *sta, void *priv_sta)
 {
-	struct iwl3945_rs_sta *rs_sta = (void *)sta->rate_ctrl_priv;
+	struct iwl3945_rs_sta *rs_sta = priv_sta;
 	int i;
 
 	IWL_DEBUG_RATE("enter\n");
@@ -333,22 +331,22 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
 	 * after assoc.. */
 
 	for (i = IWL_RATE_COUNT - 1; i >= 0; i--) {
-		if (sta->sta.supp_rates[local->hw.conf.channel->band] & (1 << i)) {
+		if (sta->supp_rates[sband->band] & (1 << i)) {
 			rs_sta->last_txrate_idx = i;
 			break;
 		}
 	}
 
 	/* For 5 GHz band it start at IWL_FIRST_OFDM_RATE */
-	if (local->hw.conf.channel->band == IEEE80211_BAND_5GHZ)
+	if (sband->band == IEEE80211_BAND_5GHZ)
 		rs_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
 
 	IWL_DEBUG_RATE("leave\n");
 }
 
-static void *rs_alloc(struct ieee80211_local *local)
+static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
 {
-	return local->hw.priv;
+	return hw->priv;
 }
 
 /* rate scale requires free function to be implemented */
@@ -356,17 +354,24 @@ static void rs_free(void *priv)
 {
 	return;
 }
+
 static void rs_clear(void *priv)
 {
 	return;
 }
 
 
-static void *rs_alloc_sta(void *priv, gfp_t gfp)
+static void *rs_alloc_sta(void *priv, struct ieee80211_sta *sta, gfp_t gfp)
 {
 	struct iwl3945_rs_sta *rs_sta;
+	struct iwl3945_sta_priv *psta = (void *) sta->drv_priv;
 	int i;
 
+	/*
+	 * XXX: If it's using sta->drv_priv anyway, it might
+	 *	as well just put all the information there.
+	 */
+
 	IWL_DEBUG_RATE("enter\n");
 
 	rs_sta = kzalloc(sizeof(struct iwl3945_rs_sta), gfp);
@@ -375,6 +380,8 @@ static void *rs_alloc_sta(void *priv, gfp_t gfp)
 		return NULL;
 	}
 
+	psta->rs_sta = rs_sta;
+
 	spin_lock_init(&rs_sta->lock);
 
 	rs_sta->start_rate = IWL_RATE_INVALID;
@@ -400,10 +407,14 @@ static void *rs_alloc_sta(void *priv, gfp_t gfp)
 	return rs_sta;
 }
 
-static void rs_free_sta(void *priv, void *priv_sta)
+static void rs_free_sta(void *priv, struct ieee80211_sta *sta,
+			void *priv_sta)
 {
+	struct iwl3945_sta_priv *psta = (void *) sta->drv_priv;
 	struct iwl3945_rs_sta *rs_sta = priv_sta;
 
+	psta->rs_sta = NULL;
+
 	IWL_DEBUG_RATE("enter\n");
 	del_timer_sync(&rs_sta->rate_scale_flush);
 	kfree(rs_sta);
@@ -445,26 +456,19 @@ static int rs_adjust_next_rate(struct iwl3945_priv *priv, int rate)
  * NOTE: Uses iwl3945_priv->retry_rate for the # of retries attempted by
  * the hardware for each rate.
  */
-static void rs_tx_status(void *priv_rate,
-			 struct net_device *dev,
+static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband,
+			 struct ieee80211_sta *sta, void *priv_sta,
 			 struct sk_buff *skb)
 {
 	u8 retries, current_count;
 	int scale_rate_index, first_index, last_index;
 	unsigned long flags;
-	struct sta_info *sta;
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate;
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct iwl3945_rs_sta *rs_sta;
-	struct ieee80211_supported_band *sband;
+	struct iwl3945_rs_sta *rs_sta = priv_sta;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
 	IWL_DEBUG_RATE("enter\n");
 
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
-
 	retries = info->status.retry_count;
 	first_index = sband->bitrates[info->tx_rate_idx].hw_value;
 	if ((first_index < 0) || (first_index >= IWL_RATE_COUNT)) {
@@ -472,17 +476,11 @@ static void rs_tx_status(void *priv_rate,
 		return;
 	}
 
-	rcu_read_lock();
-
-	sta = sta_info_get(local, hdr->addr1);
-	if (!sta || !sta->rate_ctrl_priv) {
-		rcu_read_unlock();
+	if (!priv_sta) {
 		IWL_DEBUG_RATE("leave: No STA priv data to update!\n");
 		return;
 	}
 
-	rs_sta = (void *)sta->rate_ctrl_priv;
-
 	rs_sta->tx_packets++;
 
 	scale_rate_index = first_index;
@@ -549,8 +547,6 @@ static void rs_tx_status(void *priv_rate,
 
 	spin_unlock_irqrestore(&rs_sta->lock, flags);
 
-	rcu_read_unlock();
-
 	IWL_DEBUG_RATE("leave\n");
 
 	return;
@@ -634,16 +630,15 @@ static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta,
  * rate table and must reference the driver allocated rate table
  *
  */
-static void rs_get_rate(void *priv_rate, struct net_device *dev,
-			struct ieee80211_supported_band *sband,
-			struct sk_buff *skb,
-			struct rate_selection *sel)
+static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband,
+			struct ieee80211_sta *sta, void *priv_sta,
+			struct sk_buff *skb, struct rate_selection *sel)
 {
 	u8 low = IWL_RATE_INVALID;
 	u8 high = IWL_RATE_INVALID;
 	u16 high_low;
 	int index;
-	struct iwl3945_rs_sta *rs_sta;
+	struct iwl3945_rs_sta *rs_sta = priv_sta;
 	struct iwl3945_rate_scale_data *window = NULL;
 	int current_tpt = IWL_INV_TPT;
 	int low_tpt = IWL_INV_TPT;
@@ -651,34 +646,25 @@ static void rs_get_rate(void *priv_rate, struct net_device *dev,
 	u32 fail_count;
 	s8 scale_action = 0;
 	unsigned long flags;
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	struct sta_info *sta;
 	u16 fc, rate_mask;
-	struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate;
+	struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_r;
 	DECLARE_MAC_BUF(mac);
 
 	IWL_DEBUG_RATE("enter\n");
 
-	rcu_read_lock();
-
-	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 || !sta->rate_ctrl_priv) {
+	    !sta || !priv_sta) {
 		IWL_DEBUG_RATE("leave: No STA priv data to update!\n");
-		sel->rate_idx = rate_lowest_index(local, sband, sta);
-		rcu_read_unlock();
+		sel->rate_idx = rate_lowest_index(sband, sta);
 		return;
 	}
 
-	rs_sta = (void *)sta->rate_ctrl_priv;
-
-	rate_mask = sta->sta.supp_rates[sband->band];
+	rate_mask = sta->supp_rates[sband->band];
 	index = min(rs_sta->last_txrate_idx & 0xffff, IWL_RATE_COUNT - 1);
 
 	if (sband->band == IEEE80211_BAND_5GHZ)
@@ -811,8 +797,6 @@ static void rs_get_rate(void *priv_rate, struct net_device *dev,
 	else
 		sel->rate_idx = rs_sta->last_txrate_idx;
 
-	rcu_read_unlock();
-
 	IWL_DEBUG_RATE("leave: %d\n", index);
 }
 
@@ -829,114 +813,28 @@ static struct rate_control_ops rs_ops = {
 	.free_sta = rs_free_sta,
 };
 
-int iwl3945_fill_rs_info(struct ieee80211_hw *hw, char *buf, u8 sta_id)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-	struct iwl3945_priv *priv = hw->priv;
-	struct iwl3945_rs_sta *rs_sta;
-	struct sta_info *sta;
-	unsigned long flags;
-	int count = 0, i;
-	u32 samples = 0, success = 0, good = 0;
-	unsigned long now = jiffies;
-	u32 max_time = 0;
-
-	rcu_read_lock();
-
-	sta = sta_info_get(local, priv->stations[sta_id].sta.sta.addr);
-	if (!sta || !sta->rate_ctrl_priv) {
-		if (sta)
-			IWL_DEBUG_RATE("leave - no private rate data!\n");
-		else
-			IWL_DEBUG_RATE("leave - no station!\n");
-		rcu_read_unlock();
-		return sprintf(buf, "station %d not found\n", sta_id);
-	}
-
-	rs_sta = (void *)sta->rate_ctrl_priv;
-	spin_lock_irqsave(&rs_sta->lock, flags);
-	i = IWL_RATE_54M_INDEX;
-	while (1) {
-		u64 mask;
-		int j;
-
-		count +=
-		    sprintf(&buf[count], " %2dMbs: ", iwl3945_rates[i].ieee / 2);
-
-		mask = (1ULL << (IWL_RATE_MAX_WINDOW - 1));
-		for (j = 0; j < IWL_RATE_MAX_WINDOW; j++, mask >>= 1)
-			buf[count++] =
-			    (rs_sta->win[i].data & mask) ? '1' : '0';
-
-		samples += rs_sta->win[i].counter;
-		good += rs_sta->win[i].success_counter;
-		success += rs_sta->win[i].success_counter *
-						iwl3945_rates[i].ieee;
-
-		if (rs_sta->win[i].stamp) {
-			int delta =
-			    jiffies_to_msecs(now - rs_sta->win[i].stamp);
-
-			if (delta > max_time)
-				max_time = delta;
-
-			count += sprintf(&buf[count], "%5dms\n", delta);
-		} else
-			buf[count++] = '\n';
-
-		j = iwl3945_get_prev_ieee_rate(i);
-		if (j == i)
-			break;
-		i = j;
-	}
-	spin_unlock_irqrestore(&rs_sta->lock, flags);
-	rcu_read_unlock();
-
-	/* Display the average rate of all samples taken.
-	 *
-	 * NOTE:  We multiple # of samples by 2 since the IEEE measurement
-	 * added from iwl3945_rates is actually 2X the rate */
-	if (samples)
-		count += sprintf(
-			&buf[count],
-			"\nAverage rate is %3d.%02dMbs over last %4dms\n"
-			"%3d%% success (%d good packets over %d tries)\n",
-			success / (2 * samples), (success * 5 / samples) % 10,
-			max_time, good * 100 / samples, good, samples);
-	else
-		count += sprintf(&buf[count], "\nAverage rate: 0Mbs\n");
-
-	return count;
-}
-
 void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
 {
 	struct iwl3945_priv *priv = hw->priv;
 	s32 rssi = 0;
 	unsigned long flags;
-	struct ieee80211_local *local = hw_to_local(hw);
 	struct iwl3945_rs_sta *rs_sta;
-	struct sta_info *sta;
+	struct ieee80211_sta *sta;
+	struct iwl3945_sta_priv *psta;
 
 	IWL_DEBUG_RATE("enter\n");
 
-	if (!local->rate_ctrl->ops->name ||
-	    strcmp(local->rate_ctrl->ops->name, RS_NAME)) {
-		IWL_WARNING("iwl-3945-rs not selected as rate control algo!\n");
-		IWL_DEBUG_RATE("leave - mac80211 picked the wrong RC algo.\n");
-		return;
-	}
-
 	rcu_read_lock();
 
-	sta = sta_info_get(local, priv->stations[sta_id].sta.sta.addr);
-	if (!sta || !sta->rate_ctrl_priv) {
+	sta = ieee80211_find_sta(hw, priv->stations[sta_id].sta.sta.addr);
+	psta = (void *) sta->drv_priv;
+	if (!sta || !psta) {
 		IWL_DEBUG_RATE("leave - no private rate data!\n");
 		rcu_read_unlock();
 		return;
 	}
 
-	rs_sta = (void *)sta->rate_ctrl_priv;
+	rs_sta = psta->rs_sta;
 
 	spin_lock_irqsave(&rs_sta->lock, flags);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.h b/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
index f085d330bdc..98b17ae6ef2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
@@ -176,15 +176,6 @@ static inline u8 iwl3945_get_prev_ieee_rate(u8 rate_index)
 }
 
 /**
- * iwl3945_fill_rs_info - Fill an output text buffer with the rate representation
- *
- * NOTE:  This is provided as a quick mechanism for a user to visualize
- * the performance of the rate control algorithm and is not meant to be
- * parsed software.
- */
-extern int iwl3945_fill_rs_info(struct ieee80211_hw *, char *buf, u8 sta_id);
-
-/**
  * iwl3945_rate_scale_init - Initialize the rate scale table based on assoc info
  *
  * The specific throughput table used is based on the type of network
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index 2a4933b5fb6..bdd32475b99 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -73,6 +73,10 @@ extern struct pci_device_id iwl3945_hw_card_ids[];
 extern int iwl3945_param_hwcrypto;
 extern int iwl3945_param_queues_num;
 
+struct iwl3945_sta_priv {
+	struct iwl3945_rs_sta *rs_sta;
+};
+
 enum iwl3945_antenna {
 	IWL_ANTENNA_DIVERSITY,
 	IWL_ANTENNA_MAIN,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 8b57b390c8b..93944de923c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -35,8 +35,6 @@
 
 #include <linux/workqueue.h>
 
-#include "../net/mac80211/rate.h"
-
 #include "iwl-dev.h"
 #include "iwl-sta.h"
 #include "iwl-core.h"
@@ -169,9 +167,9 @@ struct iwl_lq_sta {
 };
 
 static void rs_rate_scale_perform(struct iwl_priv *priv,
-				   struct net_device *dev,
 				   struct ieee80211_hdr *hdr,
-				   struct sta_info *sta);
+				   struct ieee80211_sta *sta,
+				   struct iwl_lq_sta *lq_sta);
 static void rs_fill_link_cmd(const struct iwl_priv *priv,
 			     struct iwl_lq_sta *lq_sta, u32 rate_n_flags);
 
@@ -357,20 +355,20 @@ static u32 rs_tl_get_load(struct iwl_lq_sta *lq_data, u8 tid)
 
 static void rs_tl_turn_on_agg_for_tid(struct iwl_priv *priv,
 				      struct iwl_lq_sta *lq_data, u8 tid,
-				      struct sta_info *sta)
+				      struct ieee80211_sta *sta)
 {
 	DECLARE_MAC_BUF(mac);
 
 	if (rs_tl_get_load(lq_data, tid) > IWL_AGG_LOAD_THRESHOLD) {
 		IWL_DEBUG_HT("Starting Tx agg: STA: %s tid: %d\n",
-				print_mac(mac, sta->sta.addr), tid);
-		ieee80211_start_tx_ba_session(priv->hw, sta->sta.addr, tid);
+				print_mac(mac, sta->addr), tid);
+		ieee80211_start_tx_ba_session(priv->hw, sta->addr, tid);
 	}
 }
 
 static void rs_tl_turn_on_agg(struct iwl_priv *priv, u8 tid,
 			      struct iwl_lq_sta *lq_data,
-			      struct sta_info *sta)
+			      struct ieee80211_sta *sta)
 {
 	if ((tid < TID_MAX_LOAD_COUNT))
 		rs_tl_turn_on_agg_for_tid(priv, lq_data, tid, sta);
@@ -770,7 +768,8 @@ out:
 /*
  * mac80211 sends us Tx status
  */
-static void rs_tx_status(void *priv_rate, struct net_device *dev,
+static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
+			 struct ieee80211_sta *sta, void *priv_sta,
 			 struct sk_buff *skb)
 {
 	int status;
@@ -778,11 +777,9 @@ static void rs_tx_status(void *priv_rate, struct net_device *dev,
 	int rs_index, index = 0;
 	struct iwl_lq_sta *lq_sta;
 	struct iwl_link_quality_cmd *table;
-	struct sta_info *sta;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_hw *hw = local_to_hw(local);
+	struct iwl_priv *priv = (struct iwl_priv *)priv_r;
+	struct ieee80211_hw *hw = priv->hw;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct iwl_rate_scale_data *window = NULL;
 	struct iwl_rate_scale_data *search_win = NULL;
@@ -808,15 +805,7 @@ static void rs_tx_status(void *priv_rate, struct net_device *dev,
 	if (retries > 15)
 		retries = 15;
 
-	rcu_read_lock();
-
-	sta = sta_info_get(local, hdr->addr1);
-
-	if (!sta || !sta->rate_ctrl_priv)
-		goto out;
-
-
-	lq_sta = (struct iwl_lq_sta *)sta->rate_ctrl_priv;
+	lq_sta = (struct iwl_lq_sta *)priv_sta;
 
 	if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
 	    !lq_sta->ibss_sta_added)
@@ -962,9 +951,8 @@ static void rs_tx_status(void *priv_rate, struct net_device *dev,
 	}
 
 	/* See if there's a better rate or modulation mode to try. */
-	rs_rate_scale_perform(priv, dev, hdr, sta);
+	rs_rate_scale_perform(priv, hdr, sta, lq_sta);
 out:
-	rcu_read_unlock();
 	return;
 }
 
@@ -1140,7 +1128,7 @@ static s32 rs_get_best_rate(struct iwl_priv *priv,
 static int rs_switch_to_mimo2(struct iwl_priv *priv,
 			     struct iwl_lq_sta *lq_sta,
 			     struct ieee80211_conf *conf,
-			     struct sta_info *sta,
+			     struct ieee80211_sta *sta,
 			     struct iwl_scale_tbl_info *tbl, int index)
 {
 	u16 rate_mask;
@@ -1148,10 +1136,10 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
 	s8 is_green = lq_sta->is_green;
 
 	if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) ||
-	    !sta->sta.ht_info.ht_supported)
+	    !sta->ht_info.ht_supported)
 		return -1;
 
-	if (((sta->sta.ht_info.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
+	if (((sta->ht_info.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
 						== WLAN_HT_CAP_SM_PS_STATIC)
 		return -1;
 
@@ -1208,7 +1196,7 @@ static int rs_switch_to_mimo2(struct iwl_priv *priv,
 static int rs_switch_to_siso(struct iwl_priv *priv,
 			     struct iwl_lq_sta *lq_sta,
 			     struct ieee80211_conf *conf,
-			     struct sta_info *sta,
+			     struct ieee80211_sta *sta,
 			     struct iwl_scale_tbl_info *tbl, int index)
 {
 	u16 rate_mask;
@@ -1216,7 +1204,7 @@ static int rs_switch_to_siso(struct iwl_priv *priv,
 	s32 rate;
 
 	if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) ||
-	    !sta->sta.ht_info.ht_supported)
+	    !sta->ht_info.ht_supported)
 		return -1;
 
 	IWL_DEBUG_RATE("LQ: try to switch to SISO\n");
@@ -1268,7 +1256,7 @@ static int rs_switch_to_siso(struct iwl_priv *priv,
 static int rs_move_legacy_other(struct iwl_priv *priv,
 				struct iwl_lq_sta *lq_sta,
 				struct ieee80211_conf *conf,
-				struct sta_info *sta,
+				struct ieee80211_sta *sta,
 				int index)
 {
 	struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
@@ -1376,7 +1364,7 @@ out:
 static int rs_move_siso_to_other(struct iwl_priv *priv,
 				 struct iwl_lq_sta *lq_sta,
 				 struct ieee80211_conf *conf,
-				 struct sta_info *sta, int index)
+				 struct ieee80211_sta *sta, int index)
 {
 	u8 is_green = lq_sta->is_green;
 	struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
@@ -1487,7 +1475,7 @@ static int rs_move_siso_to_other(struct iwl_priv *priv,
 static int rs_move_mimo_to_other(struct iwl_priv *priv,
 				 struct iwl_lq_sta *lq_sta,
 				 struct ieee80211_conf *conf,
-				 struct sta_info *sta, int index)
+				 struct ieee80211_sta *sta, int index)
 {
 	s8 is_green = lq_sta->is_green;
 	struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
@@ -1680,12 +1668,11 @@ static void rs_stay_in_table(struct iwl_lq_sta *lq_sta)
  * Do rate scaling and search for new modulation mode.
  */
 static void rs_rate_scale_perform(struct iwl_priv *priv,
-				  struct net_device *dev,
 				  struct ieee80211_hdr *hdr,
-				  struct sta_info *sta)
+				  struct ieee80211_sta *sta,
+				  struct iwl_lq_sta *lq_sta)
 {
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_hw *hw = local_to_hw(local);
+	struct ieee80211_hw *hw = priv->hw;
 	struct ieee80211_conf *conf = &hw->conf;
 	int low = IWL_RATE_INVALID;
 	int high = IWL_RATE_INVALID;
@@ -1700,7 +1687,6 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 	__le16 fc;
 	u16 rate_mask;
 	u8 update_lq = 0;
-	struct iwl_lq_sta *lq_sta;
 	struct iwl_scale_tbl_info *tbl, *tbl1;
 	u16 rate_scale_index_msk = 0;
 	u32 rate;
@@ -1721,11 +1707,10 @@ static void rs_rate_scale_perform(struct iwl_priv *priv,
 		return;
 	}
 
-	if (!sta || !sta->rate_ctrl_priv)
+	if (!sta || !lq_sta)
 		return;
 
-	lq_sta = (struct iwl_lq_sta *)sta->rate_ctrl_priv;
-	lq_sta->supp_rates = sta->sta.supp_rates[lq_sta->band];
+	lq_sta->supp_rates = sta->supp_rates[lq_sta->band];
 
 	tid = rs_tl_add_packet(lq_sta, hdr);
 
@@ -2064,9 +2049,9 @@ out:
 
 static void rs_initialize_lq(struct iwl_priv *priv,
 			     struct ieee80211_conf *conf,
-			     struct sta_info *sta)
+			     struct ieee80211_sta *sta,
+			     struct iwl_lq_sta *lq_sta)
 {
-	struct iwl_lq_sta *lq_sta;
 	struct iwl_scale_tbl_info *tbl;
 	int rate_idx;
 	int i;
@@ -2075,10 +2060,9 @@ static void rs_initialize_lq(struct iwl_priv *priv,
 	u8 active_tbl = 0;
 	u8 valid_tx_ant;
 
-	if (!sta || !sta->rate_ctrl_priv)
+	if (!sta || !lq_sta)
 		goto out;
 
-	lq_sta = (struct iwl_lq_sta *)sta->rate_ctrl_priv;
 	i = lq_sta->last_txrate_idx;
 
 	if ((lq_sta->lq.sta_id == 0xff) &&
@@ -2119,37 +2103,30 @@ static void rs_initialize_lq(struct iwl_priv *priv,
 	return;
 }
 
-static void rs_get_rate(void *priv_rate, struct net_device *dev,
-			struct ieee80211_supported_band *sband,
-			struct sk_buff *skb,
-			struct rate_selection *sel)
+static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband,
+			struct ieee80211_sta *sta, void *priv_sta,
+			struct sk_buff *skb, struct rate_selection *sel)
 {
 
 	int i;
-	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	struct ieee80211_conf *conf = &local->hw.conf;
+	struct iwl_priv *priv = (struct iwl_priv *)priv_r;
+	struct ieee80211_conf *conf = &priv->hw->conf;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	struct sta_info *sta;
 	__le16 fc;
-	struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
 	struct iwl_lq_sta *lq_sta;
 
 	IWL_DEBUG_RATE_LIMIT("rate scale calculate new rate for skb\n");
 
-	rcu_read_lock();
-
-	sta = sta_info_get(local, hdr->addr1);
-
 	/* Send management frames and broadcast/multicast data using lowest
 	 * rate. */
 	fc = hdr->frame_control;
 	if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1) ||
-	    !sta || !sta->rate_ctrl_priv) {
-		sel->rate_idx = rate_lowest_index(local, sband, sta);
-		goto out;
+	    !sta || !priv_sta) {
+		sel->rate_idx = rate_lowest_index(sband, sta);
+		return;
 	}
 
-	lq_sta = (struct iwl_lq_sta *)sta->rate_ctrl_priv;
+	lq_sta = (struct iwl_lq_sta *)priv_sta;
 	i = lq_sta->last_txrate_idx;
 
 	if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) &&
@@ -2167,23 +2144,22 @@ static void rs_get_rate(void *priv_rate, struct net_device *dev,
 			lq_sta->lq.sta_id = sta_id;
 			lq_sta->lq.rs_table[0].rate_n_flags = 0;
 			lq_sta->ibss_sta_added = 1;
-			rs_initialize_lq(priv, conf, sta);
+			rs_initialize_lq(priv, conf, sta, lq_sta);
 		}
 	}
 
 	if ((i < 0) || (i > IWL_RATE_COUNT)) {
-		sel->rate_idx = rate_lowest_index(local, sband, sta);
-		goto out;
+		sel->rate_idx = rate_lowest_index(sband, sta);
+		return;
 	}
 
 	if (sband->band == IEEE80211_BAND_5GHZ)
 		i -= IWL_FIRST_OFDM_RATE;
 	sel->rate_idx = i;
-out:
-	rcu_read_unlock();
 }
 
-static void *rs_alloc_sta(void *priv_rate, gfp_t gfp)
+static void *rs_alloc_sta(void *priv_rate, struct ieee80211_sta *sta,
+			  gfp_t gfp)
 {
 	struct iwl_lq_sta *lq_sta;
 	struct iwl_priv *priv;
@@ -2206,20 +2182,16 @@ static void *rs_alloc_sta(void *priv_rate, gfp_t gfp)
 	return lq_sta;
 }
 
-static void rs_rate_init(void *priv_rate, void *priv_sta,
-			 struct ieee80211_local *local,
-			 struct sta_info *sta)
+static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
+			 struct ieee80211_sta *sta, void *priv_sta)
 {
 	int i, j;
-	struct ieee80211_conf *conf = &local->hw.conf;
-	struct ieee80211_supported_band *sband;
-	struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
+	struct iwl_priv *priv = (struct iwl_priv *)priv_r;
+	struct ieee80211_conf *conf = &priv->hw->conf;
 	struct iwl_lq_sta *lq_sta = priv_sta;
 
-	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
 	lq_sta->flush_timer = 0;
-	lq_sta->supp_rates = sta->sta.supp_rates[sband->band];
+	lq_sta->supp_rates = sta->supp_rates[sband->band];
 	for (j = 0; j < LQ_SIZE; j++)
 		for (i = 0; i < IWL_RATE_COUNT; i++)
 			rs_rate_scale_clear_window(&lq_sta->lq_info[j].win[i]);
@@ -2232,17 +2204,17 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
 
 	lq_sta->ibss_sta_added = 0;
 	if (priv->iw_mode == NL80211_IFTYPE_AP) {
-		u8 sta_id = iwl_find_station(priv, sta->sta.addr);
+		u8 sta_id = iwl_find_station(priv, sta->addr);
 		DECLARE_MAC_BUF(mac);
 
 		/* for IBSS the call are from tasklet */
 		IWL_DEBUG_RATE("LQ: ADD station %s\n",
-			     print_mac(mac, sta->sta.addr));
+			     print_mac(mac, sta->addr));
 
 		if (sta_id == IWL_INVALID_STATION) {
 			IWL_DEBUG_RATE("LQ: ADD station %s\n",
-				       print_mac(mac, sta->sta.addr));
-			sta_id = iwl_add_station_flags(priv, sta->sta.addr,
+				       print_mac(mac, sta->addr));
+			sta_id = iwl_add_station_flags(priv, sta->addr,
 							0, CMD_ASYNC, NULL);
 		}
 		if ((sta_id != IWL_INVALID_STATION)) {
@@ -2256,11 +2228,11 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
 	/* Find highest tx rate supported by hardware and destination station */
 	lq_sta->last_txrate_idx = 3;
 	for (i = 0; i < sband->n_bitrates; i++)
-		if (sta->sta.supp_rates[sband->band] & BIT(i))
+		if (sta->supp_rates[sband->band] & BIT(i))
 			lq_sta->last_txrate_idx = i;
 
 	/* For MODE_IEEE80211A, skip over cck rates in global rate table */
-	if (local->hw.conf.channel->band == IEEE80211_BAND_5GHZ)
+	if (sband->band == IEEE80211_BAND_5GHZ)
 		lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
 
 	lq_sta->is_dup = 0;
@@ -2301,7 +2273,7 @@ static void rs_rate_init(void *priv_rate, void *priv_sta,
 	lq_sta->tx_agg_tid_en = IWL_AGG_ALL_TID;
 	lq_sta->drv = priv;
 
-	rs_initialize_lq(priv, conf, sta);
+	rs_initialize_lq(priv, conf, sta, lq_sta);
 }
 
 static void rs_fill_link_cmd(const struct iwl_priv *priv,
@@ -2423,9 +2395,9 @@ static void rs_fill_link_cmd(const struct iwl_priv *priv,
 	lq_cmd->agg_params.agg_time_limit = cpu_to_le16(4000);
 }
 
-static void *rs_alloc(struct ieee80211_local *local)
+static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
 {
-	return local->hw.priv;
+	return hw->priv;
 }
 /* rate scale requires free function to be implemented */
 static void rs_free(void *priv_rate)
@@ -2446,12 +2418,12 @@ static void rs_clear(void *priv_rate)
 #endif /* CONFIG_IWLWIFI_DEBUG */
 }
 
-static void rs_free_sta(void *priv_rate, void *priv_sta)
+static void rs_free_sta(void *priv_r, struct ieee80211_sta *sta,
+			void *priv_sta)
 {
 	struct iwl_lq_sta *lq_sta = priv_sta;
-	struct iwl_priv *priv;
+	struct iwl_priv *priv = priv_r;
 
-	priv = (struct iwl_priv *)priv_rate;
 	IWL_DEBUG_RATE("enter\n");
 	kfree(lq_sta);
 	IWL_DEBUG_RATE("leave\n");
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 27376276976..204abab7644 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2504,8 +2504,7 @@ static void iwl4965_post_associate(struct iwl_priv *priv)
 
 	priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
 
-	if (priv->current_ht_config.is_ht)
-		iwl_set_rxon_ht(priv, &priv->current_ht_config);
+	iwl_set_rxon_ht(priv, &priv->current_ht_config);
 
 	iwl_set_rxon_chain(priv);
 	priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
@@ -2568,8 +2567,6 @@ static void iwl4965_post_associate(struct iwl_priv *priv)
 	iwl_chain_noise_reset(priv);
 	priv->start_calib = 1;
 
-	/* we have just associated, don't start scan too early */
-	priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
 }
 
 static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
@@ -2878,6 +2875,13 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co
 		goto out;
 	}
 
+	if (conf->flags & IEEE80211_CONF_PS)
+		ret = iwl_power_set_user_mode(priv, IWL_POWER_INDEX_3);
+	else
+		ret = iwl_power_set_user_mode(priv, IWL_POWER_MODE_CAM);
+	if (ret)
+		IWL_DEBUG_MAC80211("Error setting power level\n");
+
 	IWL_DEBUG_MAC80211("TX Power old=%d new=%d\n",
 			   priv->tx_power_user_lmt, conf->power_level);
 
@@ -3171,6 +3175,10 @@ static void iwl4965_bss_info_changed(struct ieee80211_hw *hw,
 			priv->power_data.dtim_period = bss_conf->dtim_period;
 			priv->timestamp = bss_conf->timestamp;
 			priv->assoc_capability = bss_conf->assoc_capability;
+
+			/* we have just associated, don't start scan too early
+			 * leave time for EAPOL exchange to complete
+			 */
 			priv->next_scan_jiffies = jiffies +
 					IWL_DELAY_NEXT_SCAN_AFTER_ASSOC;
 			mutex_lock(&priv->mutex);
@@ -3189,9 +3197,9 @@ static void iwl4965_bss_info_changed(struct ieee80211_hw *hw,
 
 static int iwl_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t ssid_len)
 {
-	int ret;
 	unsigned long flags;
 	struct iwl_priv *priv = hw->priv;
+	int ret;
 
 	IWL_DEBUG_MAC80211("enter\n");
 
@@ -3210,20 +3218,27 @@ static int iwl_mac_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t ssid_len)
 		goto out_unlock;
 	}
 
-	/* we don't schedule scan within next_scan_jiffies period */
+	/* We don't schedule scan within next_scan_jiffies period.
+	 * Avoid scanning during possible EAPOL exchange, return
+	 * success immediately.
+	 */
 	if (priv->next_scan_jiffies &&
 	    time_after(priv->next_scan_jiffies, jiffies)) {
 		IWL_DEBUG_SCAN("scan rejected: within next scan period\n");
-		ret = -EAGAIN;
+		queue_work(priv->workqueue, &priv->scan_completed);
+		ret = 0;
 		goto out_unlock;
 	}
+
 	/* if we just finished scan ask for delay */
 	if (iwl_is_associated(priv) && priv->last_scan_jiffies &&
 	    time_after(priv->last_scan_jiffies + IWL_DELAY_NEXT_SCAN, jiffies)) {
 		IWL_DEBUG_SCAN("scan rejected: within previous scan period\n");
-		ret = -EAGAIN;
+		queue_work(priv->workqueue, &priv->scan_completed);
+		ret = 0;
 		goto out_unlock;
 	}
+
 	if (ssid_len) {
 		priv->one_direct_scan = 1;
 		priv->direct_ssid_len =  min_t(u8, ssid_len, IW_ESSID_MAX_SIZE);
@@ -4228,13 +4243,13 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 
 	pci_set_master(pdev);
 
-	err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
 	if (!err)
-		err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+		err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36));
 	if (err) {
-		err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+		err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
 		if (!err)
-			err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+			err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
 		/* both attempts failed: */
 		if (err) {
 			printk(KERN_WARNING "%s: No suitable DMA available.\n",
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index d80184ee911..4c312c55f90 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -646,8 +646,14 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info)
 	struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
 	u32 val;
 
-	if (!ht_info->is_ht)
+	if (!ht_info->is_ht) {
+		rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED_MSK |
+			RXON_FLG_CHANNEL_MODE_PURE_40_MSK |
+			RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK |
+			RXON_FLG_FAT_PROT_MSK |
+			RXON_FLG_HT_PROT_MSK);
 		return;
+	}
 
 	/* Set up channel bandwidth:  20 MHz only, or 20/40 mixed if fat ok */
 	if (iwl_is_fat_tx_allowed(priv, NULL))
@@ -697,8 +703,12 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info)
 }
 EXPORT_SYMBOL(iwl_set_rxon_ht);
 
-/*
- * Determine how many receiver/antenna chains to use.
+#define IWL_NUM_RX_CHAINS_MULTIPLE	3
+#define IWL_NUM_RX_CHAINS_SINGLE	2
+#define IWL_NUM_IDLE_CHAINS_DUAL	2
+#define IWL_NUM_IDLE_CHAINS_SINGLE	1
+
+/* Determine how many receiver/antenna chains to use.
  * More provides better reception via diversity.  Fewer saves power.
  * MIMO (dual stream) requires at least 2, but works better with 3.
  * This does not determine *which* chains to use, just how many.
@@ -711,9 +721,9 @@ static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
 	/* # of Rx chains to use when expecting MIMO. */
 	if (is_single || (!is_cam && (priv->current_ht_config.sm_ps ==
 						 WLAN_HT_CAP_SM_PS_STATIC)))
-		return 2;
+		return IWL_NUM_RX_CHAINS_SINGLE;
 	else
-		return 3;
+		return IWL_NUM_RX_CHAINS_MULTIPLE;
 }
 
 static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
@@ -724,10 +734,11 @@ static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
 	switch (priv->current_ht_config.sm_ps) {
 	case WLAN_HT_CAP_SM_PS_STATIC:
 	case WLAN_HT_CAP_SM_PS_DYNAMIC:
-		idle_cnt = (is_cam) ? 2 : 1;
+		idle_cnt = (is_cam) ? IWL_NUM_IDLE_CHAINS_DUAL :
+					IWL_NUM_IDLE_CHAINS_SINGLE;
 		break;
 	case WLAN_HT_CAP_SM_PS_DISABLED:
-		idle_cnt = (is_cam) ? active_cnt : 1;
+		idle_cnt = (is_cam) ? active_cnt : IWL_NUM_IDLE_CHAINS_SINGLE;
 		break;
 	case WLAN_HT_CAP_SM_PS_INVALID:
 	default:
@@ -796,7 +807,7 @@ void iwl_set_rxon_chain(struct iwl_priv *priv)
 
 	priv->staging_rxon.rx_chain = cpu_to_le16(rx_chain);
 
-	if (!is_single && (active_rx_cnt >= 2) && is_cam)
+	if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam)
 		priv->staging_rxon.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
 	else
 		priv->staging_rxon.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h
index 52629fbd835..662edf4f8d2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-csr.h
+++ b/drivers/net/wireless/iwlwifi/iwl-csr.h
@@ -64,7 +64,7 @@
 #define CSR_BASE    (0x000)
 
 #define CSR_HW_IF_CONFIG_REG    (CSR_BASE+0x000) /* hardware interface config */
-#define CSR_INT_COALESCING      (CSR_BASE+0x004) /* accum ints, 32-usec units */
+#define CSR_INT_COALESCING     (CSR_BASE+0x004) /* accum ints, 32-usec units */
 #define CSR_INT                 (CSR_BASE+0x008) /* host interrupt status/ack */
 #define CSR_INT_MASK            (CSR_BASE+0x00c) /* host interrupt enable */
 #define CSR_FH_INT_STATUS       (CSR_BASE+0x010) /* busmaster int status/ack*/
diff --git a/drivers/net/wireless/iwlwifi/iwl-fh.h b/drivers/net/wireless/iwlwifi/iwl-fh.h
index cd11c0ca299..a72efdf6d1d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fh.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fh.h
@@ -247,8 +247,8 @@
 #define FH_RCSR_CHNL0_RX_CONFIG_RBDBC_SIZE_MSK (0x00F00000) /* bits 20-23 */
 #define FH_RCSR_CHNL0_RX_CONFIG_DMA_CHNL_EN_MSK (0xC0000000) /* bits 30-31*/
 
-#define FH_RCSR_RX_CONFIG_RBDCB_SIZE_BITSHIFT	(20)
-#define FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_BITSHIFT	(4)
+#define FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS	(20)
+#define FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS	(4)
 #define RX_RB_TIMEOUT	(0x10)
 
 #define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_VAL         (0x00000000)
@@ -260,8 +260,9 @@
 #define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_12K   (0x00020000)
 #define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_16K   (0x00030000)
 
-#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL       (0x00000000)
-#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL     (0x00001000)
+#define FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY              (0x00000004)
+#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL    (0x00000000)
+#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL  (0x00001000)
 
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 38b2946b1d8..7cde9d76ff5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -376,7 +376,9 @@ int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
 {
 	int ret;
 	unsigned long flags;
-	unsigned int rb_size;
+	u32 rb_size;
+	const u32 rfdnlog = RX_QUEUE_SIZE_LOG; /* 256 RBDs */
+	const u32 rb_timeout = 0; /* FIXME: RX_RB_TIMEOUT why this stalls RX */
 
 	spin_lock_irqsave(&priv->lock, flags);
 	ret = iwl_grab_nic_access(priv);
@@ -398,26 +400,32 @@ int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
 
 	/* Tell device where to find RBD circular buffer in DRAM */
 	iwl_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_BASE_REG,
-			   rxq->dma_addr >> 8);
+			   (u32)(rxq->dma_addr >> 8));
 
 	/* Tell device where in DRAM to update its Rx status */
 	iwl_write_direct32(priv, FH_RSCSR_CHNL0_STTS_WPTR_REG,
 			   (priv->shared_phys + priv->rb_closed_offset) >> 4);
 
-	/* Enable Rx DMA, enable host interrupt, Rx buffer size 4k, 256 RBDs */
+	/* Enable Rx DMA
+	 * FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY is set becuase of HW bug in
+	 *      the credit mechanism in 5000 HW RX FIFO
+	 * Direct rx interrupts to hosts
+	 * Rx buffer size 4 or 8k
+	 * RB timeout 0x10
+	 * 256 RBDs
+	 */
 	iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG,
 			   FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL |
+			   FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY |
 			   FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL |
-			   rb_size |
-			     /* 0x10 << 4 | */
-			   (RX_QUEUE_SIZE_LOG <<
-			      FH_RCSR_RX_CONFIG_RBDCB_SIZE_BITSHIFT));
-
-	/*
-	 * iwl_write32(priv,CSR_INT_COAL_REG,0);
-	 */
+			   rb_size|
+			   (rb_timeout << FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS)|
+			   (rfdnlog << FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS));
 
 	iwl_release_nic_access(priv);
+
+	iwl_write32(priv, CSR_INT_COALESCING, 0x40);
+
 	spin_unlock_irqrestore(&priv->lock, flags);
 
 	return 0;
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 09c264be049..bf855c35b0c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -463,11 +463,6 @@ void iwl_init_scan_params(struct iwl_priv *priv)
 
 int iwl_scan_initiate(struct iwl_priv *priv)
 {
-	if (priv->iw_mode == NL80211_IFTYPE_AP) {
-		IWL_ERROR("APs don't scan.\n");
-		return 0;
-	}
-
 	if (!iwl_is_ready_rf(priv)) {
 		IWL_DEBUG_SCAN("Aborting scan due to not ready.\n");
 		return -EIO;
@@ -479,8 +474,7 @@ int iwl_scan_initiate(struct iwl_priv *priv)
 	}
 
 	if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
-		IWL_DEBUG_SCAN("Scan request while abort pending.  "
-			       "Queuing.\n");
+		IWL_DEBUG_SCAN("Scan request while abort pending\n");
 		return -EAGAIN;
 	}
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index e9feca4033f..907a53ebc6e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -1200,10 +1200,9 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 	/* If a Tx command is being handled and it isn't in the actual
 	 * command queue then there a command routing bug has been introduced
 	 * in the queue management code. */
-	if (txq_id != IWL_CMD_QUEUE_NUM)
-		IWL_ERROR("Error wrong command queue %d command id 0x%X\n",
-			  txq_id, pkt->hdr.cmd);
-	BUG_ON(txq_id != IWL_CMD_QUEUE_NUM);
+	if (WARN(txq_id != IWL_CMD_QUEUE_NUM,
+		 "wrong command queue %d, command id 0x%X\n", txq_id, pkt->hdr.cmd))
+		return;
 
 	cmd_index = get_cmd_index(&priv->txq[IWL_CMD_QUEUE_NUM].q, index, huge);
 	cmd = priv->txq[IWL_CMD_QUEUE_NUM].cmd[cmd_index];
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 62b26befddc..d15a2c99795 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -7370,15 +7370,6 @@ static ssize_t show_temperature(struct device *d,
 
 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
 
-static ssize_t show_rs_window(struct device *d,
-			      struct device_attribute *attr,
-			      char *buf)
-{
-	struct iwl3945_priv *priv = d->driver_data;
-	return iwl3945_fill_rs_info(priv->hw, buf, IWL_AP_ID);
-}
-static DEVICE_ATTR(rs_window, S_IRUGO, show_rs_window, NULL);
-
 static ssize_t show_tx_power(struct device *d,
 			     struct device_attribute *attr, char *buf)
 {
@@ -7840,7 +7831,6 @@ static struct attribute *iwl3945_sysfs_entries[] = {
 #endif
 	&dev_attr_power_level.attr,
 	&dev_attr_retry_rate.attr,
-	&dev_attr_rs_window.attr,
 	&dev_attr_statistics.attr,
 	&dev_attr_status.attr,
 	&dev_attr_temperature.attr,
@@ -7908,6 +7898,7 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 	SET_IEEE80211_DEV(hw, &pdev->dev);
 
 	hw->rate_control_algorithm = "iwl-3945-rs";
+	hw->sta_data_size = sizeof(struct iwl3945_sta_priv);
 
 	IWL_DEBUG_INFO("*** LOAD DRIVER ***\n");
 	priv = hw->priv;