From c6a1fa12d206882757264869f8e32d606b930e2a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 7 Oct 2008 12:04:32 +0200
Subject: mac80211: minor code cleanups

Nothing very interesting, some checkpatch inspired stuff,
some other things.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'net/mac80211/main.c')

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index ae62ad40ad63..ff39d893a113 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1013,7 +1013,7 @@ static int __init ieee80211_init(void)
 
 	BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb));
 	BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) +
-	             IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb));
+		     IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb));
 
 	ret = rc80211_minstrel_init();
 	if (ret)
-- 
cgit v1.2.3


From d73782fdde76554016abf73b46f843b29f520848 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 7 Oct 2008 12:04:34 +0200
Subject: mac80211: clean up ieee80211_hw_config errors

Warn when ieee80211_hw_config returns an error, it shouldn't
happen; remove a number of printks that would happen in such
a case and one printk that is user-triggerable.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/cfg.c  |  3 +--
 net/mac80211/main.c |  8 +++++++-
 net/mac80211/scan.c | 16 +++-------------
 net/mac80211/util.c |  5 +----
 net/mac80211/wext.c |  6 +-----
 5 files changed, 13 insertions(+), 25 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 8dc5e46cea68..cf3fd5d60665 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -394,8 +394,7 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 	 */
 	if (params->interval) {
 		sdata->local->hw.conf.beacon_int = params->interval;
-		if (ieee80211_hw_config(sdata->local))
-			return -EINVAL;
+		ieee80211_hw_config(sdata->local);
 		/*
 		 * We updated some parameter so if below bails out
 		 * it's not an error.
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index ff39d893a113..2ff26d03cd50 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -222,8 +222,14 @@ int ieee80211_hw_config(struct ieee80211_local *local)
 	       wiphy_name(local->hw.wiphy), chan->center_freq);
 #endif
 
-	if (local->open_count)
+	if (local->open_count) {
 		ret = local->ops->config(local_to_hw(local), &local->hw.conf);
+		/*
+		 * HW reconfiguration should never fail, the driver has told
+		 * us what it can support so it should live up to that promise.
+		 */
+		WARN_ON(ret);
+	}
 
 	return ret;
 }
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 416bb41099f3..0989b1c062e3 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -448,18 +448,12 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
 
 	if (local->hw_scanning) {
 		local->hw_scanning = false;
-		if (ieee80211_hw_config(local))
-			printk(KERN_DEBUG "%s: failed to restore operational "
-			       "channel after scan\n", wiphy_name(local->hw.wiphy));
-
+		ieee80211_hw_config(local);
 		goto done;
 	}
 
 	local->sw_scanning = false;
-	if (ieee80211_hw_config(local))
-		printk(KERN_DEBUG "%s: failed to restore operational "
-		       "channel after scan\n", wiphy_name(local->hw.wiphy));
-
+	ieee80211_hw_config(local);
 
 	netif_tx_lock_bh(local->mdev);
 	netif_addr_lock(local->mdev);
@@ -546,12 +540,8 @@ void ieee80211_scan_work(struct work_struct *work)
 
 		if (!skip) {
 			local->scan_channel = chan;
-			if (ieee80211_hw_config(local)) {
-				printk(KERN_DEBUG "%s: failed to set freq to "
-				       "%d MHz for scan\n", wiphy_name(local->hw.wiphy),
-				       chan->center_freq);
+			if (ieee80211_hw_config(local))
 				skip = 1;
-			}
 		}
 
 		/* advance state machine to next channel/band */
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index cee4884b9d06..1b605457017e 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -638,11 +638,8 @@ int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freqMHz)
 
 	if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
 		if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
-		    chan->flags & IEEE80211_CHAN_NO_IBSS) {
-			printk(KERN_DEBUG "%s: IBSS not allowed on frequency "
-				"%d MHz\n", sdata->dev->name, chan->center_freq);
+		    chan->flags & IEEE80211_CHAN_NO_IBSS)
 			return ret;
-		}
 		local->oper_channel = chan;
 
 		if (local->sw_scanning || local->hw_scanning)
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 742f811ca416..29c41040c8c9 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -689,12 +689,8 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
 		ieee80211_led_radio(local, local->hw.conf.radio_enabled);
 	}
 
-	if (need_reconfig) {
+	if (need_reconfig)
 		ieee80211_hw_config(local);
-		/* The return value of hw_config is not of big interest here,
-		 * as it doesn't say that it failed because of _this_ config
-		 * change or something else. Ignore it. */
-	}
 
 	return 0;
 }
-- 
cgit v1.2.3


From e87a2feea75e3cba7af43ed9317b56b282d87742 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 7 Oct 2008 12:04:35 +0200
Subject: mac80211: remove max_antenna_gain config

The antenna gain isn't exactly configurable, despite the belief of
some unnamed individual who thinks that the EEPROM might influence
it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 2 --
 net/mac80211/main.c    | 2 --
 2 files changed, 4 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index e41b9a8d186f..2fab5a7e5db7 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -470,7 +470,6 @@ enum ieee80211_conf_flags {
  * @listen_interval: listen interval in units of beacon interval
  * @flags: configuration flags defined above
  * @power_level: requested transmit power (in dBm)
- * @max_antenna_gain: maximum antenna gain (in dBi)
  * @antenna_sel_tx: transmit antenna selection, 0: default/diversity,
  *	1/2: antenna 0/1
  * @antenna_sel_rx: receive antenna selection, like @antenna_sel_tx
@@ -485,7 +484,6 @@ struct ieee80211_conf {
 	u16 listen_interval;
 	u32 flags;
 	int power_level;
-	int max_antenna_gain;
 	u8 antenna_sel_tx;
 	u8 antenna_sel_rx;
 
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 2ff26d03cd50..d1c4e86b215c 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -215,8 +215,6 @@ int ieee80211_hw_config(struct ieee80211_local *local)
 		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 "%s: HW CONFIG: freq=%d\n",
 	       wiphy_name(local->hw.wiphy), chan->center_freq);
-- 
cgit v1.2.3


From 7a5158ef8da70fdedeb0530faaa8128aa645be3c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 8 Oct 2008 10:59:33 +0200
Subject: mac80211: fix short slot handling

This patch makes mac80211 handle short slot requests from the AP
properly. Also warn about uses of IEEE80211_CONF_SHORT_SLOT_TIME
and optimise out the code since it cannot ever be hit anyway.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h | 28 +++++++++++--------
 net/mac80211/main.c    |  9 ++++--
 net/mac80211/mlme.c    | 74 +++++++++++++++++++++++++++-----------------------
 3 files changed, 62 insertions(+), 49 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 2fab5a7e5db7..d1466e7a47b8 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -180,8 +180,12 @@ enum ieee80211_bss_change {
  * @assoc: association status
  * @aid: association ID number, valid only when @assoc is true
  * @use_cts_prot: use CTS protection
- * @use_short_preamble: use 802.11b short preamble
- * @use_short_slot: use short slot time (only relevant for ERP)
+ * @use_short_preamble: use 802.11b short preamble;
+ *	if the hardware cannot handle this it must set the
+ *	IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE hardware flag
+ * @use_short_slot: use short slot time (only relevant for ERP);
+ *	if the hardware cannot handle this it must set the
+ *	IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE hardware flag
  * @dtim_period: num of beacons before the next DTIM, for PSM
  * @timestamp: beacon timestamp
  * @beacon_int: beacon interval
@@ -442,23 +446,23 @@ struct ieee80211_rx_status {
  *
  * Flags to define PHY configuration options
  *
- * @IEEE80211_CONF_SHORT_SLOT_TIME: use 802.11g short slot time
  * @IEEE80211_CONF_RADIOTAP: add radiotap header at receive time (if supported)
  * @IEEE80211_CONF_SUPPORT_HT_MODE: use 802.11n HT capabilities (if supported)
  * @IEEE80211_CONF_PS: Enable 802.11 power save mode
  */
 enum ieee80211_conf_flags {
-	/*
-	 * TODO: IEEE80211_CONF_SHORT_SLOT_TIME will be removed once drivers
-	 * have been converted to use bss_info_changed() for slot time
-	 * configuration
-	 */
-	IEEE80211_CONF_SHORT_SLOT_TIME	= (1<<0),
-	IEEE80211_CONF_RADIOTAP		= (1<<1),
-	IEEE80211_CONF_SUPPORT_HT_MODE	= (1<<2),
-	IEEE80211_CONF_PS		= (1<<3),
+	IEEE80211_CONF_RADIOTAP		= (1<<0),
+	IEEE80211_CONF_SUPPORT_HT_MODE	= (1<<1),
+	IEEE80211_CONF_PS		= (1<<2),
 };
 
+/* XXX: remove all this once drivers stop trying to use it */
+static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
+{
+	return 0;
+}
+#define IEEE80211_CONF_SHORT_SLOT_TIME (__IEEE80211_CONF_SHORT_SLOT_TIME())
+
 /**
  * struct ieee80211_conf - configuration of the device
  *
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index d1c4e86b215c..c427954fe8e8 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -346,9 +346,12 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)
 {
-	sdata->bss_conf.use_cts_prot = 0;
-	sdata->bss_conf.use_short_preamble = 0;
-	return BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_ERP_PREAMBLE;
+	sdata->bss_conf.use_cts_prot = false;
+	sdata->bss_conf.use_short_preamble = false;
+	sdata->bss_conf.use_short_slot = false;
+	return BSS_CHANGED_ERP_CTS_PROT |
+	       BSS_CHANGED_ERP_PREAMBLE |
+	       BSS_CHANGED_ERP_SLOT;
 }
 
 void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 6ad2619db85f..829995e740a7 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -568,15 +568,27 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 	}
 }
 
-static u32 ieee80211_handle_protect_preamb(struct ieee80211_sub_if_data *sdata,
-					   bool use_protection,
-					   bool use_short_preamble)
+static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
+					   u16 capab, bool erp_valid, u8 erp)
 {
 	struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
 #endif
 	u32 changed = 0;
+	bool use_protection;
+	bool use_short_preamble;
+	bool use_short_slot;
+
+	if (erp_valid) {
+		use_protection = (erp & WLAN_ERP_USE_PROTECTION) != 0;
+		use_short_preamble = (erp & WLAN_ERP_BARKER_PREAMBLE) == 0;
+	} else {
+		use_protection = false;
+		use_short_preamble = !!(capab & WLAN_CAPABILITY_SHORT_PREAMBLE);
+	}
+
+	use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME);
 
 	if (use_protection != bss_conf->use_cts_prot) {
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
@@ -605,30 +617,18 @@ static u32 ieee80211_handle_protect_preamb(struct ieee80211_sub_if_data *sdata,
 		changed |= BSS_CHANGED_ERP_PREAMBLE;
 	}
 
-	return changed;
-}
-
-static u32 ieee80211_handle_erp_ie(struct ieee80211_sub_if_data *sdata,
-				   u8 erp_value)
-{
-	bool use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
-	bool use_short_preamble = (erp_value & WLAN_ERP_BARKER_PREAMBLE) == 0;
-
-	return ieee80211_handle_protect_preamb(sdata,
-			use_protection, use_short_preamble);
-}
-
-static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
-					   struct ieee80211_bss *bss)
-{
-	u32 changed = 0;
-
-	if (bss->has_erp_value)
-		changed |= ieee80211_handle_erp_ie(sdata, bss->erp_value);
-	else {
-		u16 capab = bss->capability;
-		changed |= ieee80211_handle_protect_preamb(sdata, false,
-				(capab & WLAN_CAPABILITY_SHORT_PREAMBLE) != 0);
+	if (use_short_slot != bss_conf->use_short_slot) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+		if (net_ratelimit()) {
+			printk(KERN_DEBUG "%s: switched to %s slot"
+			       " (BSSID=%s)\n",
+			       sdata->dev->name,
+			       use_short_slot ? "short" : "long",
+			       ifsta->bssid);
+		}
+#endif
+		bss_conf->use_short_slot = use_short_slot;
+		changed |= BSS_CHANGED_ERP_SLOT;
 	}
 
 	return changed;
@@ -721,7 +721,8 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 		sdata->bss_conf.timestamp = bss->timestamp;
 		sdata->bss_conf.dtim_period = bss->dtim_period;
 
-		changed |= ieee80211_handle_bss_capability(sdata, bss);
+		changed |= ieee80211_handle_bss_capability(sdata,
+			bss->capability, bss->has_erp_value, bss->erp_value);
 
 		ieee80211_rx_bss_put(local, bss);
 	}
@@ -1657,6 +1658,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_conf *conf = &local->hw.conf;
 	u32 changed = 0;
+	bool erp_valid;
+	u8 erp_value = 0;
 
 	/* Process beacon from the current BSS */
 	baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
@@ -1678,13 +1681,16 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	ieee80211_sta_wmm_params(local, ifsta, elems.wmm_param,
 				 elems.wmm_param_len);
 
-	if (elems.erp_info && elems.erp_info_len >= 1)
-		changed |= ieee80211_handle_erp_ie(sdata, elems.erp_info[0]);
-	else {
-		u16 capab = le16_to_cpu(mgmt->u.beacon.capab_info);
-		changed |= ieee80211_handle_protect_preamb(sdata, false,
-				(capab & WLAN_CAPABILITY_SHORT_PREAMBLE) != 0);
+
+	if (elems.erp_info && elems.erp_info_len >= 1) {
+		erp_valid = true;
+		erp_value = elems.erp_info[0];
+	} else {
+		erp_valid = false;
 	}
+	changed |= ieee80211_handle_bss_capability(sdata,
+			le16_to_cpu(mgmt->u.beacon.capab_info),
+			erp_valid, erp_value);
 
 	if (elems.ht_cap_elem && elems.ht_info_elem &&
 	    elems.wmm_param && conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
-- 
cgit v1.2.3


From d9fe60dea7779d412b34679f1177c5ca1940ea8d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 9 Oct 2008 12:13:49 +0200
Subject: 802.11: clean up/fix HT support

This patch cleans up a number of things:
 * the unusable definition of the HT capabilities/HT information
   information elements
 * variable names that are hard to understand
 * mac80211: move ieee80211_handle_ht to ht.c and remove the unused
             enable_ht parameter
 * mac80211: fix bug with MCS rate 32 in ieee80211_handle_ht
 * mac80211: fix bug with casting the result of ieee80211_bss_get_ie
             to an information element _contents_ rather than the
             whole element, add size checking (another out-of-bounds
             access bug fixed!)
 * mac80211: remove some unused return values in favour of BUG_ON
             checking
 * a few minor other things

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath9k/main.c         |  57 ++++++-----
 drivers/net/wireless/ath9k/rc.c           |  10 +-
 drivers/net/wireless/ath9k/rc.h           |   1 -
 drivers/net/wireless/ath9k/recv.c         |   2 +-
 drivers/net/wireless/ath9k/xmit.c         |   2 +-
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c |  18 ++--
 drivers/net/wireless/iwlwifi/iwl-agn.c    |  20 ++--
 drivers/net/wireless/iwlwifi/iwl-core.c   |  71 +++++++-------
 drivers/net/wireless/iwlwifi/iwl-core.h   |   2 +-
 drivers/net/wireless/iwlwifi/iwl-dev.h    |   4 +-
 drivers/net/wireless/iwlwifi/iwl-scan.c   |  12 +--
 drivers/net/wireless/iwlwifi/iwl-sta.c    |   6 +-
 drivers/net/wireless/mac80211_hwsim.c     |  19 ++--
 include/linux/ieee80211.h                 | 133 ++++++++++++++++++--------
 include/net/mac80211.h                    |  12 +--
 include/net/wireless.h                    |  15 +--
 net/mac80211/cfg.c                        |   7 +-
 net/mac80211/ht.c                         | 151 +++++++++++++++++++++++++-----
 net/mac80211/ieee80211_i.h                |  16 ++--
 net/mac80211/main.c                       |  94 -------------------
 net/mac80211/mlme.c                       |  45 ++++-----
 net/mac80211/util.c                       |   4 +-
 net/mac80211/wext.c                       |   4 +-
 23 files changed, 386 insertions(+), 319 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 186d75acb326..5e087c92a6d9 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -61,24 +61,24 @@ static u32 ath_get_extchanmode(struct ath_softc *sc,
 
 	switch (chan->band) {
 	case IEEE80211_BAND_2GHZ:
-		if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_NONE) &&
+		if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE) &&
 		    (tx_chan_width == ATH9K_HT_MACMODE_20))
 			chanmode = CHANNEL_G_HT20;
-		if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_ABOVE) &&
+		if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) &&
 		    (tx_chan_width == ATH9K_HT_MACMODE_2040))
 			chanmode = CHANNEL_G_HT40PLUS;
-		if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_BELOW) &&
+		if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) &&
 		    (tx_chan_width == ATH9K_HT_MACMODE_2040))
 			chanmode = CHANNEL_G_HT40MINUS;
 		break;
 	case IEEE80211_BAND_5GHZ:
-		if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_NONE) &&
+		if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE) &&
 		    (tx_chan_width == ATH9K_HT_MACMODE_20))
 			chanmode = CHANNEL_A_HT20;
-		if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_ABOVE) &&
+		if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE) &&
 		    (tx_chan_width == ATH9K_HT_MACMODE_2040))
 			chanmode = CHANNEL_A_HT40PLUS;
-		if ((ext_chan_offset == IEEE80211_HT_IE_CHA_SEC_BELOW) &&
+		if ((ext_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW) &&
 		    (tx_chan_width == ATH9K_HT_MACMODE_2040))
 			chanmode = CHANNEL_A_HT40MINUS;
 		break;
@@ -215,24 +215,24 @@ static void ath_key_delete(struct ath_softc *sc, struct ieee80211_key_conf *key)
 	ath_key_reset(sc, key->keyidx, freeslot);
 }
 
-static void setup_ht_cap(struct ieee80211_ht_info *ht_info)
+static void setup_ht_cap(struct ieee80211_sta_ht_cap *ht_info)
 {
 #define	ATH9K_HT_CAP_MAXRXAMPDU_65536 0x3	/* 2 ^ 16 */
 #define	ATH9K_HT_CAP_MPDUDENSITY_8 0x6		/* 8 usec */
 
-	ht_info->ht_supported = 1;
-	ht_info->cap = (u16)IEEE80211_HT_CAP_SUP_WIDTH
-			|(u16)IEEE80211_HT_CAP_SM_PS
-			|(u16)IEEE80211_HT_CAP_SGI_40
-			|(u16)IEEE80211_HT_CAP_DSSSCCK40;
+	ht_info->ht_supported = true;
+	ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
+		       IEEE80211_HT_CAP_SM_PS |
+		       IEEE80211_HT_CAP_SGI_40 |
+		       IEEE80211_HT_CAP_DSSSCCK40;
 
 	ht_info->ampdu_factor = ATH9K_HT_CAP_MAXRXAMPDU_65536;
 	ht_info->ampdu_density = ATH9K_HT_CAP_MPDUDENSITY_8;
-	/* setup supported mcs set */
-	memset(ht_info->supp_mcs_set, 0, 16);
-	ht_info->supp_mcs_set[0] = 0xff;
-	ht_info->supp_mcs_set[1] = 0xff;
-	ht_info->supp_mcs_set[12] = IEEE80211_HT_CAP_MCS_TX_DEFINED;
+	/* set up supported mcs set */
+	memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
+	ht_info->mcs.rx_mask[0] = 0xff;
+	ht_info->mcs.rx_mask[1] = 0xff;
+	ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
 }
 
 static int ath_rate2idx(struct ath_softc *sc, int rate)
@@ -328,31 +328,28 @@ static u8 parse_mpdudensity(u8 mpdudensity)
 static void ath9k_ht_conf(struct ath_softc *sc,
 			  struct ieee80211_bss_conf *bss_conf)
 {
-#define IEEE80211_HT_CAP_40MHZ_INTOLERANT BIT(14)
 	struct ath_ht_info *ht_info = &sc->sc_ht_info;
 
 	if (bss_conf->assoc_ht) {
 		ht_info->ext_chan_offset =
 			bss_conf->ht_bss_conf->bss_cap &
-				IEEE80211_HT_IE_CHA_SEC_OFFSET;
+				IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
 
-		if (!(bss_conf->ht_conf->cap &
+		if (!(bss_conf->ht_cap->cap &
 			IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
 			    (bss_conf->ht_bss_conf->bss_cap &
-				IEEE80211_HT_IE_CHA_WIDTH))
+				IEEE80211_HT_PARAM_CHAN_WIDTH_ANY))
 			ht_info->tx_chan_width = ATH9K_HT_MACMODE_2040;
 		else
 			ht_info->tx_chan_width = ATH9K_HT_MACMODE_20;
 
 		ath9k_hw_set11nmac2040(sc->sc_ah, ht_info->tx_chan_width);
 		ht_info->maxampdu = 1 << (IEEE80211_HTCAP_MAXRXAMPDU_FACTOR +
-					bss_conf->ht_conf->ampdu_factor);
+					bss_conf->ht_cap->ampdu_factor);
 		ht_info->mpdudensity =
-			parse_mpdudensity(bss_conf->ht_conf->ampdu_density);
+			parse_mpdudensity(bss_conf->ht_cap->ampdu_density);
 
 	}
-
-#undef IEEE80211_HT_CAP_40MHZ_INTOLERANT
 }
 
 static void ath9k_bss_assoc_info(struct ath_softc *sc,
@@ -411,7 +408,7 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc,
 			return;
 		}
 
-		if (hw->conf.ht_conf.ht_supported)
+		if (hw->conf.ht_cap.ht_supported)
 			sc->sc_ah->ah_channels[pos].chanmode =
 				ath_get_extchanmode(sc, curchan);
 		else
@@ -534,7 +531,7 @@ int _ath_rx_indicate(struct ath_softc *sc,
 
 	if (an) {
 		ath_rx_input(sc, an,
-			     hw->conf.ht_conf.ht_supported,
+			     hw->conf.ht_cap.ht_supported,
 			     skb, status, &st);
 	}
 	if (!an || (st != ATH_RX_CONSUMED))
@@ -943,7 +940,7 @@ static int ath_attach(u16 devid,
 
 	if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT)
 		/* Setup HT capabilities for 2.4Ghz*/
-		setup_ht_cap(&sc->sbands[IEEE80211_BAND_2GHZ].ht_info);
+		setup_ht_cap(&sc->sbands[IEEE80211_BAND_2GHZ].ht_cap);
 
 	hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
 		&sc->sbands[IEEE80211_BAND_2GHZ];
@@ -958,7 +955,7 @@ static int ath_attach(u16 devid,
 
 		if (sc->sc_ah->ah_caps.hw_caps & ATH9K_HW_CAP_HT)
 			/* Setup HT capabilities for 5Ghz*/
-			setup_ht_cap(&sc->sbands[IEEE80211_BAND_5GHZ].ht_info);
+			setup_ht_cap(&sc->sbands[IEEE80211_BAND_5GHZ].ht_cap);
 
 		hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
 			&sc->sbands[IEEE80211_BAND_5GHZ];
@@ -1254,7 +1251,7 @@ static int ath9k_config(struct ieee80211_hw *hw,
 		(curchan->band == IEEE80211_BAND_2GHZ) ?
 		CHANNEL_G : CHANNEL_A;
 
-	if (sc->sc_curaid && hw->conf.ht_conf.ht_supported)
+	if (sc->sc_curaid && hw->conf.ht_cap.ht_supported)
 		sc->sc_ah->ah_channels[pos].chanmode =
 			ath_get_extchanmode(sc, curchan);
 
diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c
index b1e535b8ec48..ee2dbce42b4d 100644
--- a/drivers/net/wireless/ath9k/rc.c
+++ b/drivers/net/wireless/ath9k/rc.c
@@ -1838,7 +1838,7 @@ void ath_rc_node_update(struct ieee80211_hw *hw, struct ath_rate_node *rc_priv)
 	struct ath_softc *sc = hw->priv;
 	u32 capflag = 0;
 
-	if (hw->conf.ht_conf.ht_supported) {
+	if (hw->conf.ht_cap.ht_supported) {
 		capflag |= ATH_RC_HT_FLAG | ATH_RC_DS_FLAG;
 		if (sc->sc_ht_info.tx_chan_width == ATH9K_HT_MACMODE_2040)
 			capflag |= ATH_RC_CW40_FLAG;
@@ -1910,7 +1910,7 @@ static void ath_tx_aggr_resp(struct ath_softc *sc,
 	 */
 	si = container_of(sta, struct sta_info, sta);
 	buffersize = IEEE80211_MIN_AMPDU_BUF <<
-		sband->ht_info.ampdu_factor; /* FIXME */
+		sband->ht_cap.ampdu_factor; /* FIXME */
 	state = si->ampdu_mlme.tid_state_tx[tidno];
 
 	if (state & HT_ADDBA_RECEIVED_MSK) {
@@ -1979,7 +1979,7 @@ static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband,
 
 	/* Check if aggregation has to be enabled for this tid */
 
-	if (hw->conf.ht_conf.ht_supported) {
+	if (hw->conf.ht_cap.ht_supported) {
 		if (ieee80211_is_data_qos(fc)) {
 			qc = ieee80211_get_qos_ctl(hdr);
 			tid = qc[0] & 0xf;
@@ -2027,8 +2027,8 @@ static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband,
 
 	ath_setup_rates(sc, sband, sta, ath_rc_priv);
 	if (sc->hw->conf.flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
-		for (i = 0; i < MCS_SET_SIZE; i++) {
-			if (sc->hw->conf.ht_conf.supp_mcs_set[i/8] & (1<<(i%8)))
+		for (i = 0; i < 77; i++) {
+			if (sc->hw->conf.ht_cap.mcs.rx_mask[i/8] & (1<<(i%8)))
 				ath_rc_priv->neg_ht_rates.rs_rates[j++] = i;
 			if (j == ATH_RATE_MAX)
 				break;
diff --git a/drivers/net/wireless/ath9k/rc.h b/drivers/net/wireless/ath9k/rc.h
index b95b41508b98..6671097fad72 100644
--- a/drivers/net/wireless/ath9k/rc.h
+++ b/drivers/net/wireless/ath9k/rc.h
@@ -59,7 +59,6 @@ struct ath_softc;
 #define FALSE 0
 
 #define ATH_RATE_MAX	30
-#define MCS_SET_SIZE	128
 
 enum ieee80211_fixed_rate_mode {
 	IEEE80211_FIXED_RATE_NONE  = 0,
diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c
index 4983402af559..010fcdfec3f6 100644
--- a/drivers/net/wireless/ath9k/recv.c
+++ b/drivers/net/wireless/ath9k/recv.c
@@ -1119,7 +1119,7 @@ int ath_rx_aggr_start(struct ath_softc *sc,
 
 	sband = hw->wiphy->bands[hw->conf.channel->band];
 	buffersize = IEEE80211_MIN_AMPDU_BUF <<
-		sband->ht_info.ampdu_factor; /* FIXME */
+		sband->ht_cap.ampdu_factor; /* FIXME */
 
 	rxtid = &an->an_aggr.rx.tid[tid];
 
diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c
index 13866043dec9..3770fbe84fce 100644
--- a/drivers/net/wireless/ath9k/xmit.c
+++ b/drivers/net/wireless/ath9k/xmit.c
@@ -300,7 +300,7 @@ static int ath_tx_prepare(struct ath_softc *sc,
 	if (ieee80211_is_data(fc) && !txctl->use_minrate) {
 
 		/* Enable HT only for DATA frames and not for EAPOL */
-		txctl->ht = (hw->conf.ht_conf.ht_supported &&
+		txctl->ht = (hw->conf.ht_cap.ht_supported &&
 			    (tx_info->flags & IEEE80211_TX_CTL_AMPDU));
 
 		if (is_multicast_ether_addr(hdr->addr1)) {
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index b497d40dc396..cd1bff590491 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -1134,10 +1134,10 @@ 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->ht_info.ht_supported)
+	    !sta->ht_cap.ht_supported)
 		return -1;
 
-	if (((sta->ht_info.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
+	if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
 						== WLAN_HT_CAP_SM_PS_STATIC)
 		return -1;
 
@@ -1202,7 +1202,7 @@ static int rs_switch_to_siso(struct iwl_priv *priv,
 	s32 rate;
 
 	if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) ||
-	    !sta->ht_info.ht_supported)
+	    !sta->ht_cap.ht_supported)
 		return -1;
 
 	IWL_DEBUG_RATE("LQ: try to switch to SISO\n");
@@ -2238,19 +2238,19 @@ static void rs_rate_init(void *priv_r, struct ieee80211_supported_band *sband,
 	 * active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3),
 	 * supp_rates[] does not; shift to convert format, force 9 MBits off.
 	 */
-	lq_sta->active_siso_rate = conf->ht_conf.supp_mcs_set[0] << 1;
-	lq_sta->active_siso_rate |= conf->ht_conf.supp_mcs_set[0] & 0x1;
+	lq_sta->active_siso_rate = conf->ht_cap.mcs.rx_mask[0] << 1;
+	lq_sta->active_siso_rate |= conf->ht_cap.mcs.rx_mask[0] & 0x1;
 	lq_sta->active_siso_rate &= ~((u16)0x2);
 	lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE;
 
 	/* Same here */
-	lq_sta->active_mimo2_rate = conf->ht_conf.supp_mcs_set[1] << 1;
-	lq_sta->active_mimo2_rate |= conf->ht_conf.supp_mcs_set[1] & 0x1;
+	lq_sta->active_mimo2_rate = conf->ht_cap.mcs.rx_mask[1] << 1;
+	lq_sta->active_mimo2_rate |= conf->ht_cap.mcs.rx_mask[1] & 0x1;
 	lq_sta->active_mimo2_rate &= ~((u16)0x2);
 	lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE;
 
-	lq_sta->active_mimo3_rate = conf->ht_conf.supp_mcs_set[2] << 1;
-	lq_sta->active_mimo3_rate |= conf->ht_conf.supp_mcs_set[2] & 0x1;
+	lq_sta->active_mimo3_rate = conf->ht_cap.mcs.rx_mask[2] << 1;
+	lq_sta->active_mimo3_rate |= conf->ht_cap.mcs.rx_mask[2] & 0x1;
 	lq_sta->active_mimo3_rate &= ~((u16)0x2);
 	lq_sta->active_mimo3_rate <<= IWL_FIRST_OFDM_RATE;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 2cac09405afe..e6695e80fb53 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -552,7 +552,7 @@ static int iwl4965_send_beacon_cmd(struct iwl_priv *priv)
 static void iwl4965_ht_conf(struct iwl_priv *priv,
 			    struct ieee80211_bss_conf *bss_conf)
 {
-	struct ieee80211_ht_info *ht_conf = bss_conf->ht_conf;
+	struct ieee80211_sta_ht_cap *ht_conf = bss_conf->ht_cap;
 	struct ieee80211_ht_bss_info *ht_bss_conf = bss_conf->ht_bss_conf;
 	struct iwl_ht_info *iwl_conf = &priv->current_ht_config;
 
@@ -573,27 +573,27 @@ static void iwl4965_ht_conf(struct iwl_priv *priv,
 		!!(ht_conf->cap & IEEE80211_HT_CAP_MAX_AMSDU);
 
 	iwl_conf->supported_chan_width =
-		!!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH);
+		!!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
 	iwl_conf->extension_chan_offset =
-		ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_SEC_OFFSET;
+		ht_bss_conf->bss_cap & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
 	/* If no above or below channel supplied disable FAT channel */
-	if (iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_ABOVE &&
-	    iwl_conf->extension_chan_offset != IEEE80211_HT_IE_CHA_SEC_BELOW) {
-		iwl_conf->extension_chan_offset = IEEE80211_HT_IE_CHA_SEC_NONE;
+	if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE &&
+	    iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW) {
+		iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
 		iwl_conf->supported_chan_width = 0;
 	}
 
 	iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2);
 
-	memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
+	memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16);
 
 	iwl_conf->control_channel = ht_bss_conf->primary_channel;
 	iwl_conf->tx_chan_width =
-		!!(ht_bss_conf->bss_cap & IEEE80211_HT_IE_CHA_WIDTH);
+		!!(ht_bss_conf->bss_cap & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY);
 	iwl_conf->ht_protection =
-		ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_HT_PROTECTION;
+		ht_bss_conf->bss_op_mode & IEEE80211_HT_OP_MODE_PROTECTION;
 	iwl_conf->non_GF_STA_present =
-		!!(ht_bss_conf->bss_op_mode & IEEE80211_HT_IE_NON_GF_STA_PRSNT);
+		!!(ht_bss_conf->bss_op_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
 
 	IWL_DEBUG_MAC80211("control channel %d\n", iwl_conf->control_channel);
 	IWL_DEBUG_MAC80211("leave\n");
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 4c312c55f90c..4678da447ff6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -382,10 +382,10 @@ void iwl_reset_qos(struct iwl_priv *priv)
 }
 EXPORT_SYMBOL(iwl_reset_qos);
 
-#define MAX_BIT_RATE_40_MHZ 0x96 /* 150 Mbps */
-#define MAX_BIT_RATE_20_MHZ 0x48 /* 72 Mbps */
+#define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
+#define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
 static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
-			      struct ieee80211_ht_info *ht_info,
+			      struct ieee80211_sta_ht_cap *ht_info,
 			      enum ieee80211_band band)
 {
 	u16 max_bit_rate = 0;
@@ -393,45 +393,46 @@ static void iwlcore_init_ht_hw_capab(const struct iwl_priv *priv,
 	u8 tx_chains_num = priv->hw_params.tx_chains_num;
 
 	ht_info->cap = 0;
-	memset(ht_info->supp_mcs_set, 0, 16);
+	memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
 
-	ht_info->ht_supported = 1;
+	ht_info->ht_supported = true;
 
-	ht_info->cap |= (u16)IEEE80211_HT_CAP_GRN_FLD;
-	ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_20;
-	ht_info->cap |= (u16)(IEEE80211_HT_CAP_SM_PS &
+	ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
+	ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
+	ht_info->cap |= (IEEE80211_HT_CAP_SM_PS &
 			     (WLAN_HT_CAP_SM_PS_DISABLED << 2));
 
 	max_bit_rate = MAX_BIT_RATE_20_MHZ;
 	if (priv->hw_params.fat_channel & BIT(band)) {
-		ht_info->cap |= (u16)IEEE80211_HT_CAP_SUP_WIDTH;
-		ht_info->cap |= (u16)IEEE80211_HT_CAP_SGI_40;
-		ht_info->supp_mcs_set[4] = 0x01;
+		ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+		ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
+		ht_info->mcs.rx_mask[4] = 0x01;
 		max_bit_rate = MAX_BIT_RATE_40_MHZ;
 	}
 
 	if (priv->cfg->mod_params->amsdu_size_8K)
-		ht_info->cap |= (u16)IEEE80211_HT_CAP_MAX_AMSDU;
+		ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU;
 
 	ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
 	ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
 
-	ht_info->supp_mcs_set[0] = 0xFF;
+	ht_info->mcs.rx_mask[0] = 0xFF;
 	if (rx_chains_num >= 2)
-		ht_info->supp_mcs_set[1] = 0xFF;
+		ht_info->mcs.rx_mask[1] = 0xFF;
 	if (rx_chains_num >= 3)
-		ht_info->supp_mcs_set[2] = 0xFF;
+		ht_info->mcs.rx_mask[2] = 0xFF;
 
 	/* Highest supported Rx data rate */
 	max_bit_rate *= rx_chains_num;
-	ht_info->supp_mcs_set[10] = (u8)(max_bit_rate & 0x00FF);
-	ht_info->supp_mcs_set[11] = (u8)((max_bit_rate & 0xFF00) >> 8);
+	WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK);
+	ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate);
 
 	/* Tx MCS capabilities */
-	ht_info->supp_mcs_set[12] = IEEE80211_HT_CAP_MCS_TX_DEFINED;
+	ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
 	if (tx_chains_num != rx_chains_num) {
-		ht_info->supp_mcs_set[12] |= IEEE80211_HT_CAP_MCS_TX_RX_DIFF;
-		ht_info->supp_mcs_set[12] |= ((tx_chains_num - 1) << 2);
+		ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
+		ht_info->mcs.tx_params |= ((tx_chains_num - 1) <<
+				IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
 	}
 }
 
@@ -495,7 +496,7 @@ static int iwlcore_init_geos(struct iwl_priv *priv)
 	sband->n_bitrates = IWL_RATE_COUNT - IWL_FIRST_OFDM_RATE;
 
 	if (priv->cfg->sku & IWL_SKU_N)
-		iwlcore_init_ht_hw_capab(priv, &sband->ht_info,
+		iwlcore_init_ht_hw_capab(priv, &sband->ht_cap,
 					 IEEE80211_BAND_5GHZ);
 
 	sband = &priv->bands[IEEE80211_BAND_2GHZ];
@@ -505,7 +506,7 @@ static int iwlcore_init_geos(struct iwl_priv *priv)
 	sband->n_bitrates = IWL_RATE_COUNT;
 
 	if (priv->cfg->sku & IWL_SKU_N)
-		iwlcore_init_ht_hw_capab(priv, &sband->ht_info,
+		iwlcore_init_ht_hw_capab(priv, &sband->ht_cap,
 					 IEEE80211_BAND_2GHZ);
 
 	priv->ieee_channels = channels;
@@ -595,8 +596,8 @@ static void iwlcore_free_geos(struct iwl_priv *priv)
 static bool is_single_rx_stream(struct iwl_priv *priv)
 {
 	return !priv->current_ht_config.is_ht ||
-	       ((priv->current_ht_config.supp_mcs_set[1] == 0) &&
-		(priv->current_ht_config.supp_mcs_set[2] == 0));
+	       ((priv->current_ht_config.mcs.rx_mask[1] == 0) &&
+		(priv->current_ht_config.mcs.rx_mask[2] == 0));
 }
 
 static u8 iwl_is_channel_extension(struct iwl_priv *priv,
@@ -609,10 +610,10 @@ static u8 iwl_is_channel_extension(struct iwl_priv *priv,
 	if (!is_channel_valid(ch_info))
 		return 0;
 
-	if (extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_ABOVE)
+	if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
 		return !(ch_info->fat_extension_channel &
 					IEEE80211_CHAN_NO_FAT_ABOVE);
-	else if (extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_BELOW)
+	else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW)
 		return !(ch_info->fat_extension_channel &
 					IEEE80211_CHAN_NO_FAT_BELOW);
 
@@ -620,18 +621,18 @@ static u8 iwl_is_channel_extension(struct iwl_priv *priv,
 }
 
 u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
-			     struct ieee80211_ht_info *sta_ht_inf)
+			 struct ieee80211_sta_ht_cap *sta_ht_inf)
 {
 	struct iwl_ht_info *iwl_ht_conf = &priv->current_ht_config;
 
 	if ((!iwl_ht_conf->is_ht) ||
 	   (iwl_ht_conf->supported_chan_width != IWL_CHANNEL_WIDTH_40MHZ) ||
-	   (iwl_ht_conf->extension_chan_offset == IEEE80211_HT_IE_CHA_SEC_NONE))
+	   (iwl_ht_conf->extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE))
 		return 0;
 
 	if (sta_ht_inf) {
 		if ((!sta_ht_inf->ht_supported) ||
-		   (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH)))
+		   (!(sta_ht_inf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)))
 			return 0;
 	}
 
@@ -671,13 +672,13 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info)
 
 	/* Note: control channel is opposite of extension channel */
 	switch (ht_info->extension_chan_offset) {
-	case IEEE80211_HT_IE_CHA_SEC_ABOVE:
+	case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
 		rxon->flags &= ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
 		break;
-	case IEEE80211_HT_IE_CHA_SEC_BELOW:
+	case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
 		rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
 		break;
-	case IEEE80211_HT_IE_CHA_SEC_NONE:
+	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
 	default:
 		rxon->flags &= ~RXON_FLG_CHANNEL_MODE_MIXED_MSK;
 		break;
@@ -693,9 +694,9 @@ void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info)
 			"rxon flags 0x%X operation mode :0x%X "
 			"extension channel offset 0x%x "
 			"control chan %d\n",
-			ht_info->supp_mcs_set[0],
-			ht_info->supp_mcs_set[1],
-			ht_info->supp_mcs_set[2],
+			ht_info->mcs.rx_mask[0],
+			ht_info->mcs.rx_mask[1],
+			ht_info->mcs.rx_mask[2],
 			le32_to_cpu(rxon->flags), ht_info->ht_protection,
 			ht_info->extension_chan_offset,
 			ht_info->control_channel);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 288b6a800e03..1a3ad8b1ebdb 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -190,7 +190,7 @@ void iwl_set_rxon_chain(struct iwl_priv *priv);
 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch);
 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info);
 u8 iwl_is_fat_tx_allowed(struct iwl_priv *priv,
-			 struct ieee80211_ht_info *sta_ht_inf);
+			 struct ieee80211_sta_ht_cap *sta_ht_inf);
 int iwl_hw_nic_init(struct iwl_priv *priv);
 int iwl_setup_mac(struct iwl_priv *priv);
 int iwl_set_hw_params(struct iwl_priv *priv);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 34306b6798e2..572250ee9d58 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -411,7 +411,7 @@ struct iwl_ht_info {
 	u8 max_amsdu_size;
 	u8 ampdu_factor;
 	u8 mpdu_density;
-	u8 supp_mcs_set[16];
+	struct ieee80211_mcs_info mcs;
 	/* BSS related data */
 	u8 control_channel;
 	u8 extension_chan_offset;
@@ -585,7 +585,7 @@ struct iwl_addsta_cmd;
 extern int iwl_send_add_sta(struct iwl_priv *priv,
 			    struct iwl_addsta_cmd *sta, u8 flags);
 extern u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr,
-			int is_ap, u8 flags, struct ieee80211_ht_info *ht_info);
+			int is_ap, u8 flags, struct ieee80211_sta_ht_cap *ht_info);
 extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
 extern int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src);
 extern const u8 iwl_bcast_addr[ETH_ALEN];
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 3b0bee331a33..78d16bd7b745 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -550,7 +550,7 @@ static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband,
 {
 	struct ieee80211_ht_cap *ht_cap;
 
-	if (!sband || !sband->ht_info.ht_supported)
+	if (!sband || !sband->ht_cap.ht_supported)
 		return;
 
 	if (*left < sizeof(struct ieee80211_ht_cap))
@@ -559,12 +559,12 @@ static void iwl_ht_cap_to_ie(const struct ieee80211_supported_band *sband,
 	*pos++ = sizeof(struct ieee80211_ht_cap);
 	ht_cap = (struct ieee80211_ht_cap *) pos;
 
-	ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap);
-	memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16);
+	ht_cap->cap_info = cpu_to_le16(sband->ht_cap.cap);
+	memcpy(&ht_cap->mcs, &sband->ht_cap.mcs, 16);
 	ht_cap->ampdu_params_info =
-		(sband->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) |
-		((sband->ht_info.ampdu_density << 2) &
-			IEEE80211_HT_CAP_AMPDU_DENSITY);
+		(sband->ht_cap.ampdu_factor & IEEE80211_HT_AMPDU_PARM_FACTOR) |
+		((sband->ht_cap.ampdu_density << 2) &
+			IEEE80211_HT_AMPDU_PARM_DENSITY);
 	*left -= sizeof(struct ieee80211_ht_cap);
 }
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index a28a8decc79c..b9b8554433a6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -181,7 +181,7 @@ int iwl_send_add_sta(struct iwl_priv *priv,
 EXPORT_SYMBOL(iwl_send_add_sta);
 
 static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
-				   struct ieee80211_ht_info *sta_ht_inf)
+				   struct ieee80211_sta_ht_cap *sta_ht_inf)
 {
 	__le32 sta_flags;
 	u8 mimo_ps_mode;
@@ -229,7 +229,7 @@ static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
  * iwl_add_station_flags - Add station to tables in driver and device
  */
 u8 iwl_add_station_flags(struct iwl_priv *priv, const u8 *addr, int is_ap,
-			 u8 flags, struct ieee80211_ht_info *ht_info)
+			 u8 flags, struct ieee80211_sta_ht_cap *ht_info)
 {
 	int i;
 	int sta_id = IWL_INVALID_STATION;
@@ -894,7 +894,7 @@ int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
 
 	/* Add station to device's station table */
 	struct ieee80211_conf *conf = &priv->hw->conf;
-	struct ieee80211_ht_info *cur_ht_config = &conf->ht_conf;
+	struct ieee80211_sta_ht_cap *cur_ht_config = &conf->ht_cap;
 
 	if ((is_ap) &&
 	    (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) &&
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index e23d9a52d083..3f236b546683 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -563,19 +563,18 @@ static int __init init_mac80211_hwsim(void)
 		data->band.n_channels = ARRAY_SIZE(hwsim_channels);
 		data->band.bitrates = data->rates;
 		data->band.n_bitrates = ARRAY_SIZE(hwsim_rates);
-		data->band.ht_info.ht_supported = 1;
-		data->band.ht_info.cap = IEEE80211_HT_CAP_SUP_WIDTH |
+		data->band.ht_cap.ht_supported = true;
+		data->band.ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
 			IEEE80211_HT_CAP_GRN_FLD |
 			IEEE80211_HT_CAP_SGI_40 |
 			IEEE80211_HT_CAP_DSSSCCK40;
-		data->band.ht_info.ampdu_factor = 0x3;
-		data->band.ht_info.ampdu_density = 0x6;
-		memset(data->band.ht_info.supp_mcs_set, 0,
-		       sizeof(data->band.ht_info.supp_mcs_set));
-		data->band.ht_info.supp_mcs_set[0] = 0xff;
-		data->band.ht_info.supp_mcs_set[1] = 0xff;
-		data->band.ht_info.supp_mcs_set[12] =
-			IEEE80211_HT_CAP_MCS_TX_DEFINED;
+		data->band.ht_cap.ampdu_factor = 0x3;
+		data->band.ht_cap.ampdu_density = 0x6;
+		memset(&data->band.ht_cap.mcs, 0,
+		       sizeof(data->band.ht_cap.mcs));
+		data->band.ht_cap.mcs.rx_mask[0] = 0xff;
+		data->band.ht_cap.mcs.rx_mask[1] = 0xff;
+		data->band.ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
 		hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &data->band;
 
 		err = ieee80211_register_hw(hw);
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 14126bc36641..64a4abce6d91 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -685,28 +685,88 @@ struct ieee80211_bar {
 #define IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL     0x0000
 #define IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA  0x0004
 
+
+#define IEEE80211_HT_MCS_MASK_LEN		10
+
+/**
+ * struct ieee80211_mcs_info - MCS information
+ * @rx_mask: RX mask
+ * @rx_highest: highest supported RX rate
+ * @tx_params: TX parameters
+ */
+struct ieee80211_mcs_info {
+	u8 rx_mask[IEEE80211_HT_MCS_MASK_LEN];
+	__le16 rx_highest;
+	u8 tx_params;
+	u8 reserved[3];
+} __attribute__((packed));
+
+/* 802.11n HT capability MSC set */
+#define IEEE80211_HT_MCS_RX_HIGHEST_MASK	0x3ff
+#define IEEE80211_HT_MCS_TX_DEFINED		0x01
+#define IEEE80211_HT_MCS_TX_RX_DIFF		0x02
+/* value 0 == 1 stream etc */
+#define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK	0x0C
+#define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT	2
+#define		IEEE80211_HT_MCS_TX_MAX_STREAMS	4
+#define IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION	0x10
+
+/*
+ * 802.11n D5.0 20.3.5 / 20.6 says:
+ * - indices 0 to 7 and 32 are single spatial stream
+ * - 8 to 31 are multiple spatial streams using equal modulation
+ *   [8..15 for two streams, 16..23 for three and 24..31 for four]
+ * - remainder are multiple spatial streams using unequal modulation
+ */
+#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START 33
+#define IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE \
+	(IEEE80211_HT_MCS_UNEQUAL_MODULATION_START / 8)
+
 /**
  * struct ieee80211_ht_cap - HT capabilities
  *
- * This structure refers to "HT capabilities element" as
- * described in 802.11n draft section 7.3.2.52
+ * This structure is the "HT capabilities element" as
+ * described in 802.11n D5.0 7.3.2.57
  */
 struct ieee80211_ht_cap {
 	__le16 cap_info;
 	u8 ampdu_params_info;
-	u8 supp_mcs_set[16];
+
+	/* 16 bytes MCS information */
+	struct ieee80211_mcs_info mcs;
+
 	__le16 extended_ht_cap_info;
 	__le32 tx_BF_cap_info;
 	u8 antenna_selection_info;
 } __attribute__ ((packed));
 
+/* 802.11n HT capabilities masks (for cap_info) */
+#define IEEE80211_HT_CAP_LDPC_CODING		0x0001
+#define IEEE80211_HT_CAP_SUP_WIDTH_20_40	0x0002
+#define IEEE80211_HT_CAP_SM_PS			0x000C
+#define IEEE80211_HT_CAP_GRN_FLD		0x0010
+#define IEEE80211_HT_CAP_SGI_20			0x0020
+#define IEEE80211_HT_CAP_SGI_40			0x0040
+#define IEEE80211_HT_CAP_TX_STBC		0x0080
+#define IEEE80211_HT_CAP_RX_STBC		0x0300
+#define IEEE80211_HT_CAP_DELAY_BA		0x0400
+#define IEEE80211_HT_CAP_MAX_AMSDU		0x0800
+#define IEEE80211_HT_CAP_DSSSCCK40		0x1000
+#define IEEE80211_HT_CAP_PSMP_SUPPORT		0x2000
+#define IEEE80211_HT_CAP_40MHZ_INTOLERANT	0x4000
+#define IEEE80211_HT_CAP_LSIG_TXOP_PROT		0x8000
+
+/* 802.11n HT capability AMPDU settings (for ampdu_params_info) */
+#define IEEE80211_HT_AMPDU_PARM_FACTOR		0x03
+#define IEEE80211_HT_AMPDU_PARM_DENSITY		0x1C
+
 /**
- * struct ieee80211_ht_cap - HT additional information
+ * struct ieee80211_ht_info - HT information
  *
- * This structure refers to "HT information element" as
- * described in 802.11n draft section 7.3.2.53
+ * This structure is the "HT information element" as
+ * described in 802.11n D5.0 7.3.2.58
  */
-struct ieee80211_ht_addt_info {
+struct ieee80211_ht_info {
 	u8 control_chan;
 	u8 ht_param;
 	__le16 operation_mode;
@@ -714,36 +774,33 @@ struct ieee80211_ht_addt_info {
 	u8 basic_set[16];
 } __attribute__ ((packed));
 
-/* 802.11n HT capabilities masks */
-#define IEEE80211_HT_CAP_SUP_WIDTH		0x0002
-#define IEEE80211_HT_CAP_SM_PS			0x000C
-#define IEEE80211_HT_CAP_GRN_FLD		0x0010
-#define IEEE80211_HT_CAP_SGI_20			0x0020
-#define IEEE80211_HT_CAP_SGI_40			0x0040
-#define IEEE80211_HT_CAP_DELAY_BA		0x0400
-#define IEEE80211_HT_CAP_MAX_AMSDU		0x0800
-#define IEEE80211_HT_CAP_DSSSCCK40		0x1000
-/* 802.11n HT capability AMPDU settings */
-#define IEEE80211_HT_CAP_AMPDU_FACTOR		0x03
-#define IEEE80211_HT_CAP_AMPDU_DENSITY		0x1C
-/* 802.11n HT capability MSC set */
-#define IEEE80211_SUPP_MCS_SET_UEQM		4
-#define IEEE80211_HT_CAP_MAX_STREAMS		4
-#define IEEE80211_SUPP_MCS_SET_LEN		10
-/* maximum streams the spec allows */
-#define IEEE80211_HT_CAP_MCS_TX_DEFINED		0x01
-#define IEEE80211_HT_CAP_MCS_TX_RX_DIFF		0x02
-#define IEEE80211_HT_CAP_MCS_TX_STREAMS		0x0C
-#define IEEE80211_HT_CAP_MCS_TX_UEQM		0x10
-/* 802.11n HT IE masks */
-#define IEEE80211_HT_IE_CHA_SEC_OFFSET		0x03
-#define IEEE80211_HT_IE_CHA_SEC_NONE	 	0x00
-#define IEEE80211_HT_IE_CHA_SEC_ABOVE 		0x01
-#define IEEE80211_HT_IE_CHA_SEC_BELOW 		0x03
-#define IEEE80211_HT_IE_CHA_WIDTH		0x04
-#define IEEE80211_HT_IE_HT_PROTECTION		0x0003
-#define IEEE80211_HT_IE_NON_GF_STA_PRSNT	0x0004
-#define IEEE80211_HT_IE_NON_HT_STA_PRSNT	0x0010
+/* for ht_param */
+#define IEEE80211_HT_PARAM_CHA_SEC_OFFSET		0x03
+#define		IEEE80211_HT_PARAM_CHA_SEC_NONE		0x00
+#define		IEEE80211_HT_PARAM_CHA_SEC_ABOVE	0x01
+#define		IEEE80211_HT_PARAM_CHA_SEC_BELOW	0x03
+#define IEEE80211_HT_PARAM_CHAN_WIDTH_ANY		0x04
+#define IEEE80211_HT_PARAM_RIFS_MODE			0x08
+#define IEEE80211_HT_PARAM_SPSMP_SUPPORT		0x10
+#define IEEE80211_HT_PARAM_SERV_INTERVAL_GRAN		0xE0
+
+/* for operation_mode */
+#define IEEE80211_HT_OP_MODE_PROTECTION			0x0003
+#define		IEEE80211_HT_OP_MODE_PROTECTION_NONE		0
+#define		IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER	1
+#define		IEEE80211_HT_OP_MODE_PROTECTION_20MHZ		2
+#define		IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED	3
+#define IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT		0x0004
+#define IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT		0x0010
+
+/* for stbc_param */
+#define IEEE80211_HT_STBC_PARAM_DUAL_BEACON		0x0040
+#define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT		0x0080
+#define IEEE80211_HT_STBC_PARAM_STBC_BEACON		0x0100
+#define IEEE80211_HT_STBC_PARAM_LSIG_TXOP_FULLPROT	0x0200
+#define IEEE80211_HT_STBC_PARAM_PCO_ACTIVE		0x0400
+#define IEEE80211_HT_STBC_PARAM_PCO_PHASE		0x0800
+
 
 /* block-ack parameters */
 #define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
@@ -949,7 +1006,7 @@ enum ieee80211_eid {
 	WLAN_EID_EXT_SUPP_RATES = 50,
 	/* 802.11n */
 	WLAN_EID_HT_CAPABILITY = 45,
-	WLAN_EID_HT_EXTRA_INFO = 61,
+	WLAN_EID_HT_INFORMATION = 61,
 	/* 802.11i */
 	WLAN_EID_RSN = 48,
 	WLAN_EID_WPA = 221,
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index d1466e7a47b8..2870f3973f1a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -191,7 +191,7 @@ enum ieee80211_bss_change {
  * @beacon_int: beacon interval
  * @assoc_capability: capabilities taken from assoc resp
  * @assoc_ht: association in HT mode
- * @ht_conf: ht capabilities
+ * @ht_cap: ht capabilities
  * @ht_bss_conf: ht extended capabilities
  * @basic_rates: bitmap of basic rates, each bit stands for an
  *	index into the rate table configured by the driver in
@@ -212,7 +212,7 @@ struct ieee80211_bss_conf {
 	u64 basic_rates;
 	/* ht related data */
 	bool assoc_ht;
-	struct ieee80211_ht_info *ht_conf;
+	struct ieee80211_sta_ht_cap *ht_cap;
 	struct ieee80211_ht_bss_info *ht_bss_conf;
 };
 
@@ -477,7 +477,7 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
  * @antenna_sel_tx: transmit antenna selection, 0: default/diversity,
  *	1/2: antenna 0/1
  * @antenna_sel_rx: receive antenna selection, like @antenna_sel_tx
- * @ht_conf: describes current self configuration of 802.11n HT capabilies
+ * @ht_cap: describes current self configuration of 802.11n HT capabilities
  * @ht_bss_conf: describes current BSS configuration of 802.11n HT parameters
  * @channel: the channel to tune to
  */
@@ -493,7 +493,7 @@ struct ieee80211_conf {
 
 	struct ieee80211_channel *channel;
 
-	struct ieee80211_ht_info ht_conf;
+	struct ieee80211_sta_ht_cap ht_cap;
 	struct ieee80211_ht_bss_info ht_bss_conf;
 };
 
@@ -687,7 +687,7 @@ enum set_key_cmd {
  * @addr: MAC address
  * @aid: AID we assigned to the station if we're an AP
  * @supp_rates: Bitmap of supported rates (per band)
- * @ht_info: HT capabilities of this STA
+ * @ht_cap: HT capabilities of this STA
  * @drv_priv: data area for driver use, will always be aligned to
  *	sizeof(void *), size is determined in hw information.
  */
@@ -695,7 +695,7 @@ struct ieee80211_sta {
 	u64 supp_rates[IEEE80211_NUM_BANDS];
 	u8 addr[ETH_ALEN];
 	u16 aid;
-	struct ieee80211_ht_info ht_info;
+	struct ieee80211_sta_ht_cap ht_cap;
 
 	/* must be last */
 	u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *))));
diff --git a/include/net/wireless.h b/include/net/wireless.h
index 721efb363db7..c0aa0fb8db5e 100644
--- a/include/net/wireless.h
+++ b/include/net/wireless.h
@@ -10,6 +10,7 @@
 #include <linux/netdevice.h>
 #include <linux/debugfs.h>
 #include <linux/list.h>
+#include <linux/ieee80211.h>
 #include <net/cfg80211.h>
 
 /**
@@ -133,23 +134,23 @@ struct ieee80211_rate {
 };
 
 /**
- * struct ieee80211_ht_info - describing STA's HT capabilities
+ * struct ieee80211_sta_ht_cap - STA's HT capabilities
  *
  * This structure describes most essential parameters needed
  * to describe 802.11n HT capabilities for an STA.
  *
- * @ht_supported: is HT supported by STA, 0: no, 1: yes
+ * @ht_supported: is HT supported by the STA
  * @cap: HT capabilities map as described in 802.11n spec
  * @ampdu_factor: Maximum A-MPDU length factor
  * @ampdu_density: Minimum A-MPDU spacing
- * @supp_mcs_set: Supported MCS set as described in 802.11n spec
+ * @mcs: Supported MCS rates
  */
-struct ieee80211_ht_info {
+struct ieee80211_sta_ht_cap {
 	u16 cap; /* use IEEE80211_HT_CAP_ */
-	u8 ht_supported;
+	bool ht_supported;
 	u8 ampdu_factor;
 	u8 ampdu_density;
-	u8 supp_mcs_set[16];
+	struct ieee80211_mcs_info mcs;
 };
 
 /**
@@ -173,7 +174,7 @@ struct ieee80211_supported_band {
 	enum ieee80211_band band;
 	int n_channels;
 	int n_bitrates;
-	struct ieee80211_ht_info ht_info;
+	struct ieee80211_sta_ht_cap ht_cap;
 };
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index cf3fd5d60665..a5dea617aab3 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -633,10 +633,9 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 		sta->sta.supp_rates[local->oper_channel->band] = rates;
 	}
 
-	if (params->ht_capa) {
-		ieee80211_ht_cap_ie_to_ht_info(params->ht_capa,
-					       &sta->sta.ht_info);
-	}
+	if (params->ht_capa)
+		ieee80211_ht_cap_ie_to_sta_ht_cap(params->ht_capa,
+						  &sta->sta.ht_cap);
 
 	if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 		switch (params->plink_action) {
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index b854483cf23f..e2d121bf2745 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -20,37 +20,33 @@
 #include "sta_info.h"
 #include "wme.h"
 
-int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
-				   struct ieee80211_ht_info *ht_info)
+void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_ht_cap *ht_cap_ie,
+				       struct ieee80211_sta_ht_cap *ht_cap)
 {
 
-	if (ht_info == NULL)
-		return -EINVAL;
+	BUG_ON(!ht_cap);
 
-	memset(ht_info, 0, sizeof(*ht_info));
+	memset(ht_cap, 0, sizeof(*ht_cap));
 
 	if (ht_cap_ie) {
 		u8 ampdu_info = ht_cap_ie->ampdu_params_info;
 
-		ht_info->ht_supported = 1;
-		ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info);
-		ht_info->ampdu_factor =
-			ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR;
-		ht_info->ampdu_density =
-			(ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2;
-		memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16);
+		ht_cap->ht_supported = true;
+		ht_cap->cap = le16_to_cpu(ht_cap_ie->cap_info);
+		ht_cap->ampdu_factor =
+			ampdu_info & IEEE80211_HT_AMPDU_PARM_FACTOR;
+		ht_cap->ampdu_density =
+			(ampdu_info & IEEE80211_HT_AMPDU_PARM_DENSITY) >> 2;
+		memcpy(&ht_cap->mcs, &ht_cap_ie->mcs, sizeof(ht_cap->mcs));
 	} else
-		ht_info->ht_supported = 0;
-
-	return 0;
+		ht_cap->ht_supported = false;
 }
 
-int ieee80211_ht_addt_info_ie_to_ht_bss_info(
-			struct ieee80211_ht_addt_info *ht_add_info_ie,
+void ieee80211_ht_info_ie_to_ht_bss_info(
+			struct ieee80211_ht_info *ht_add_info_ie,
 			struct ieee80211_ht_bss_info *bss_info)
 {
-	if (bss_info == NULL)
-		return -EINVAL;
+	BUG_ON(!bss_info);
 
 	memset(bss_info, 0, sizeof(*bss_info));
 
@@ -62,8 +58,119 @@ int ieee80211_ht_addt_info_ie_to_ht_bss_info(
 		bss_info->bss_cap = ht_add_info_ie->ht_param;
 		bss_info->bss_op_mode = (u8)(op_mode & 0xff);
 	}
+}
+
+/*
+ * ieee80211_handle_ht should be called only after the operating band
+ * has been determined as ht configuration depends on the hw's
+ * HT abilities for a specific band.
+ */
+u32 ieee80211_handle_ht(struct ieee80211_local *local,
+			struct ieee80211_sta_ht_cap *req_ht_cap,
+			struct ieee80211_ht_bss_info *req_bss_cap)
+{
+	struct ieee80211_conf *conf = &local->hw.conf;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_sta_ht_cap ht_cap;
+	struct ieee80211_ht_bss_info ht_bss_conf;
+	u32 changed = 0;
+	int i;
+	u8 max_tx_streams;
+	u8 tx_mcs_set_cap;
+	bool enable_ht = true;
+
+	sband = local->hw.wiphy->bands[conf->channel->band];
+
+	memset(&ht_cap, 0, sizeof(ht_cap));
+	memset(&ht_bss_conf, 0, sizeof(struct ieee80211_ht_bss_info));
+
+	/* HT is not supported */
+	if (!sband->ht_cap.ht_supported)
+		enable_ht = false;
+
+	/* disable HT */
+	if (!enable_ht) {
+		if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)
+			changed |= BSS_CHANGED_HT;
+		conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
+		conf->ht_cap.ht_supported = false;
+		return changed;
+	}
+
+
+	if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE))
+		changed |= BSS_CHANGED_HT;
+
+	conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE;
+	ht_cap.ht_supported = true;
+
+	ht_cap.cap = req_ht_cap->cap & sband->ht_cap.cap;
+	ht_cap.cap &= ~IEEE80211_HT_CAP_SM_PS;
+	ht_cap.cap |= sband->ht_cap.cap & IEEE80211_HT_CAP_SM_PS;
+
+	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_cap.ampdu_factor = req_ht_cap->ampdu_factor;
+	ht_cap.ampdu_density = req_ht_cap->ampdu_density;
+
+	/* own MCS TX capabilities */
+	tx_mcs_set_cap = sband->ht_cap.mcs.tx_params;
+
+	/*
+	 * configure supported Tx MCS according to requested MCS
+	 * (based in most cases on Rx capabilities of peer) and self
+	 * Tx MCS capabilities (as defined by low level driver HW
+	 * Tx capabilities)
+	 */
+
+	/* can we TX with MCS rates? */
+	if (!(tx_mcs_set_cap & IEEE80211_HT_MCS_TX_DEFINED))
+		goto check_changed;
+
+	/* Counting from 0, therefore +1 */
+	if (tx_mcs_set_cap & IEEE80211_HT_MCS_TX_RX_DIFF)
+		max_tx_streams =
+			((tx_mcs_set_cap & IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK)
+				>> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT) + 1;
+	else
+		max_tx_streams = IEEE80211_HT_MCS_TX_MAX_STREAMS;
+
+	/*
+	 * 802.11n D5.0 20.3.5 / 20.6 says:
+	 * - indices 0 to 7 and 32 are single spatial stream
+	 * - 8 to 31 are multiple spatial streams using equal modulation
+	 *   [8..15 for two streams, 16..23 for three and 24..31 for four]
+	 * - remainder are multiple spatial streams using unequal modulation
+	 */
+	for (i = 0; i < max_tx_streams; i++)
+		ht_cap.mcs.rx_mask[i] =
+			sband->ht_cap.mcs.rx_mask[i] &
+					req_ht_cap->mcs.rx_mask[i];
+
+	if (tx_mcs_set_cap & IEEE80211_HT_MCS_TX_UNEQUAL_MODULATION)
+		for (i = IEEE80211_HT_MCS_UNEQUAL_MODULATION_START_BYTE;
+		     i < IEEE80211_HT_MCS_MASK_LEN; i++)
+			ht_cap.mcs.rx_mask[i] =
+				sband->ht_cap.mcs.rx_mask[i] &
+					req_ht_cap->mcs.rx_mask[i];
+
+	/* handle MCS rate 32 too */
+	if (sband->ht_cap.mcs.rx_mask[32/8] &
+	    req_ht_cap->mcs.rx_mask[32/8] & 1)
+		ht_cap.mcs.rx_mask[32/8] |= 1;
+
+ check_changed:
+	/* if bss configuration changed store the new one */
+	if (memcmp(&conf->ht_cap, &ht_cap, sizeof(ht_cap)) ||
+	    memcmp(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf))) {
+		changed |= BSS_CHANGED_HT;
+		memcpy(&conf->ht_cap, &ht_cap, sizeof(ht_cap));
+		memcpy(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf));
+	}
 
-	return 0;
+	return changed;
 }
 
 static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata,
@@ -794,7 +901,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
 	 * check if configuration can support the BA policy
 	 * and if buffer size does not exceeds max value */
 	if (((ba_policy != 1)
-		&& (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA)))
+		&& (!(conf->ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA)))
 		|| (buf_size > IEEE80211_MAX_AMPDU_BUF)) {
 		status = WLAN_STATUS_INVALID_QOS_PARAM;
 #ifdef CONFIG_MAC80211_HT_DEBUG
@@ -812,7 +919,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
 
 		sband = local->hw.wiphy->bands[conf->channel->band];
 		buf_size = IEEE80211_MIN_AMPDU_BUF;
-		buf_size = buf_size << sband->ht_info.ampdu_factor;
+		buf_size = buf_size << sband->ht_cap.ampdu_factor;
 	}
 
 
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index f49cb9e8bb42..ae4ca3e8b443 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -817,7 +817,7 @@ struct ieee802_11_elems {
 	u8 *wmm_info;
 	u8 *wmm_param;
 	struct ieee80211_ht_cap *ht_cap_elem;
-	struct ieee80211_ht_addt_info *ht_info_elem;
+	struct ieee80211_ht_info *ht_info_elem;
 	u8 *mesh_config;
 	u8 *mesh_id;
 	u8 *peer_link;
@@ -880,9 +880,6 @@ 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 ieee80211_sub_if_data *sdata, u32 changed);
 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
-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);
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 				      u32 changed);
 void ieee80211_configure_filter(struct ieee80211_local *local);
@@ -963,11 +960,14 @@ int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
 
 /* HT */
-int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
-				   struct ieee80211_ht_info *ht_info);
-int ieee80211_ht_addt_info_ie_to_ht_bss_info(
-			struct ieee80211_ht_addt_info *ht_add_info_ie,
+void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_ht_cap *ht_cap_ie,
+				       struct ieee80211_sta_ht_cap *ht_cap);
+void ieee80211_ht_info_ie_to_ht_bss_info(
+			struct ieee80211_ht_info *ht_add_info_ie,
 			struct ieee80211_ht_bss_info *bss_info);
+u32 ieee80211_handle_ht(struct ieee80211_local *local,
+			struct ieee80211_sta_ht_cap *req_ht_cap,
+			struct ieee80211_ht_bss_info *req_bss_cap);
 void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
 
 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index c427954fe8e8..07f812755e55 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -232,100 +232,6 @@ int ieee80211_hw_config(struct ieee80211_local *local)
 	return ret;
 }
 
-/**
- * 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.
- */
-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_supported_band *sband;
-	struct ieee80211_ht_info ht_conf;
-	struct ieee80211_ht_bss_info ht_bss_conf;
-	u32 changed = 0;
-	int i;
-	u8 max_tx_streams = IEEE80211_HT_CAP_MAX_STREAMS;
-	u8 tx_mcs_set_cap;
-
-	sband = local->hw.wiphy->bands[conf->channel->band];
-
-	memset(&ht_conf, 0, sizeof(struct ieee80211_ht_info));
-	memset(&ht_bss_conf, 0, sizeof(struct ieee80211_ht_bss_info));
-
-	/* HT is not supported */
-	if (!sband->ht_info.ht_supported) {
-		conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
-		goto out;
-	}
-
-	/* disable HT */
-	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.ht_supported = 0;
-		goto out;
-	}
-
-
-	if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE))
-		changed |= BSS_CHANGED_HT;
-
-	conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE;
-	ht_conf.ht_supported = 1;
-
-	ht_conf.cap = req_ht_cap->cap & sband->ht_info.cap;
-	ht_conf.cap &= ~(IEEE80211_HT_CAP_SM_PS);
-	ht_conf.cap |= sband->ht_info.cap & IEEE80211_HT_CAP_SM_PS;
-	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;
-
-	/* Bits 96-100 */
-	tx_mcs_set_cap = sband->ht_info.supp_mcs_set[12];
-
-	/* configure suppoerted Tx MCS according to requested MCS
-	 * (based in most cases on Rx capabilities of peer) and self
-	 * Tx MCS capabilities (as defined by low level driver HW
-	 * Tx capabilities) */
-	if (!(tx_mcs_set_cap & IEEE80211_HT_CAP_MCS_TX_DEFINED))
-		goto check_changed;
-
-	/* Counting from 0 therfore + 1 */
-	if (tx_mcs_set_cap & IEEE80211_HT_CAP_MCS_TX_RX_DIFF)
-		max_tx_streams = ((tx_mcs_set_cap &
-				IEEE80211_HT_CAP_MCS_TX_STREAMS) >> 2) + 1;
-
-	for (i = 0; i < max_tx_streams; i++)
-		ht_conf.supp_mcs_set[i] =
-			sband->ht_info.supp_mcs_set[i] &
-					req_ht_cap->supp_mcs_set[i];
-
-	if (tx_mcs_set_cap & IEEE80211_HT_CAP_MCS_TX_UEQM)
-		for (i = IEEE80211_SUPP_MCS_SET_UEQM;
-		     i < IEEE80211_SUPP_MCS_SET_LEN; i++)
-			ht_conf.supp_mcs_set[i] =
-				sband->ht_info.supp_mcs_set[i] &
-					req_ht_cap->supp_mcs_set[i];
-
-check_changed:
-	/* 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));
-	}
-out:
-	return changed;
-}
-
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 				      u32 changed)
 {
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 829995e740a7..196dd39f6286 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -236,7 +236,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
-	u8 *pos, *ies, *ht_add_ie;
+	u8 *pos, *ies, *ht_ie;
 	int i, len, count, rates_len, supp_rates_len;
 	u16 capab;
 	struct ieee80211_bss *bss;
@@ -393,24 +393,25 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 
 	/* wmm support is a must to HT */
 	if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED) &&
-	    sband->ht_info.ht_supported &&
-	    (ht_add_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_EXTRA_INFO))) {
-		struct ieee80211_ht_addt_info *ht_add_info =
-			(struct ieee80211_ht_addt_info *)ht_add_ie;
-		u16 cap = sband->ht_info.cap;
+	    sband->ht_cap.ht_supported &&
+	    (ht_ie = ieee80211_bss_get_ie(bss, WLAN_EID_HT_INFORMATION)) &&
+	    ht_ie[1] >= sizeof(struct ieee80211_ht_info)) {
+		struct ieee80211_ht_info *ht_info =
+			(struct ieee80211_ht_info *)(ht_ie + 2);
+		u16 cap = sband->ht_cap.cap;
 		__le16 tmp;
 		u32 flags = local->hw.conf.channel->flags;
 
-		switch (ht_add_info->ht_param & IEEE80211_HT_IE_CHA_SEC_OFFSET) {
-		case IEEE80211_HT_IE_CHA_SEC_ABOVE:
+		switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
+		case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
 			if (flags & IEEE80211_CHAN_NO_FAT_ABOVE) {
-				cap &= ~IEEE80211_HT_CAP_SUP_WIDTH;
+				cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 				cap &= ~IEEE80211_HT_CAP_SGI_40;
 			}
 			break;
-		case IEEE80211_HT_IE_CHA_SEC_BELOW:
+		case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
 			if (flags & IEEE80211_CHAN_NO_FAT_BELOW) {
-				cap &= ~IEEE80211_HT_CAP_SUP_WIDTH;
+				cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
 				cap &= ~IEEE80211_HT_CAP_SGI_40;
 			}
 			break;
@@ -424,9 +425,9 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
 		memcpy(pos, &tmp, sizeof(u16));
 		pos += sizeof(u16);
 		/* 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);
+		*pos++ = sband->ht_cap.ampdu_factor |
+			 (sband->ht_cap.ampdu_density << 2);
+		memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
 	}
 
 	kfree(ifsta->assocreq_ies);
@@ -730,7 +731,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 	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_cap = &conf->ht_cap;
 		sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf;
 	}
 
@@ -850,7 +851,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 		changed |= BSS_CHANGED_HT;
 
 	sdata->bss_conf.assoc_ht = 0;
-	sdata->bss_conf.ht_conf = NULL;
+	sdata->bss_conf.ht_cap = NULL;
 	sdata->bss_conf.ht_bss_conf = NULL;
 
 	ieee80211_led_assoc(local, 0);
@@ -1335,11 +1336,11 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
 	    (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
 		struct ieee80211_ht_bss_info bss_info;
-		ieee80211_ht_cap_ie_to_ht_info(
-				elems.ht_cap_elem, &sta->sta.ht_info);
-		ieee80211_ht_addt_info_ie_to_ht_bss_info(
+		ieee80211_ht_cap_ie_to_sta_ht_cap(
+				elems.ht_cap_elem, &sta->sta.ht_cap);
+		ieee80211_ht_info_ie_to_ht_bss_info(
 				elems.ht_info_elem, &bss_info);
-		ieee80211_handle_ht(local, 1, &sta->sta.ht_info, &bss_info);
+		ieee80211_handle_ht(local, &sta->sta.ht_cap, &bss_info);
 	}
 
 	rate_control_rate_init(sta);
@@ -1696,9 +1697,9 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	    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(
+		ieee80211_ht_info_ie_to_ht_bss_info(
 				elems.ht_info_elem, &bss_info);
-		changed |= ieee80211_handle_ht(local, 1, &conf->ht_conf,
+		changed |= ieee80211_handle_ht(local, &conf->ht_cap,
 					       &bss_info);
 	}
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 1b605457017e..9941a60a2327 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -532,8 +532,8 @@ void ieee802_11_parse_elems(u8 *start, size_t len,
 			if (elen >= sizeof(struct ieee80211_ht_cap))
 				elems->ht_cap_elem = (void *)pos;
 			break;
-		case WLAN_EID_HT_EXTRA_INFO:
-			if (elen >= sizeof(struct ieee80211_ht_addt_info))
+		case WLAN_EID_HT_INFORMATION:
+			if (elen >= sizeof(struct ieee80211_ht_info))
 				elems->ht_info_elem = (void *)pos;
 			break;
 		case WLAN_EID_MESH_ID:
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 29c41040c8c9..a3af15141244 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -147,7 +147,7 @@ static int ieee80211_ioctl_giwname(struct net_device *dev,
 	sband = local->hw.wiphy->bands[IEEE80211_BAND_5GHZ];
 	if (sband) {
 		is_a = 1;
-		is_ht |= sband->ht_info.ht_supported;
+		is_ht |= sband->ht_cap.ht_supported;
 	}
 
 	sband = local->hw.wiphy->bands[IEEE80211_BAND_2GHZ];
@@ -160,7 +160,7 @@ static int ieee80211_ioctl_giwname(struct net_device *dev,
 			if (sband->bitrates[i].bitrate == 60)
 				is_g = 1;
 		}
-		is_ht |= sband->ht_info.ht_supported;
+		is_ht |= sband->ht_cap.ht_supported;
 	}
 
 	strcpy(name, "IEEE 802.11");
-- 
cgit v1.2.3


From e8975581f63870be42ff4662b293d1b0c8c21350 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Thu, 9 Oct 2008 12:18:51 +0200
Subject: mac80211: introduce hw config change flags

This makes mac80211 notify the driver which configuration
actually changed, e.g. channel etc.

No driver changes, this is just plumbing, driver authors are
expected to act on this if they want to.

Also remove the HW CONFIG debug printk, it's incorrect, often
we configure something else.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/adm8211.c              |  3 ++-
 drivers/net/wireless/ath5k/base.c           |  7 +++----
 drivers/net/wireless/ath9k/main.c           |  4 ++--
 drivers/net/wireless/b43/main.c             |  3 ++-
 drivers/net/wireless/b43legacy/main.c       |  3 ++-
 drivers/net/wireless/iwlwifi/iwl-agn.c      |  3 ++-
 drivers/net/wireless/iwlwifi/iwl3945-base.c |  7 ++++---
 drivers/net/wireless/libertas_tf/main.c     |  4 +++-
 drivers/net/wireless/mac80211_hwsim.c       |  4 ++--
 drivers/net/wireless/p54/p54common.c        |  3 ++-
 drivers/net/wireless/rt2x00/rt2x00.h        |  2 +-
 drivers/net/wireless/rt2x00/rt2x00dev.c     |  2 +-
 drivers/net/wireless/rt2x00/rt2x00mac.c     |  3 ++-
 drivers/net/wireless/rtl8180_dev.c          |  3 ++-
 drivers/net/wireless/rtl8187_dev.c          |  3 ++-
 drivers/net/wireless/zd1211rw/zd_mac.c      |  4 +++-
 include/net/mac80211.h                      | 30 ++++++++++++++++++++++++-----
 net/mac80211/cfg.c                          |  3 ++-
 net/mac80211/ieee80211_i.h                  |  2 +-
 net/mac80211/iface.c                        | 25 ++++++++++++++++++------
 net/mac80211/main.c                         | 29 +++++++++++++++-------------
 net/mac80211/scan.c                         | 12 +++++++++---
 net/mac80211/util.c                         |  3 ++-
 net/mac80211/wext.c                         | 14 +++++++-------
 24 files changed, 116 insertions(+), 60 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/drivers/net/wireless/adm8211.c b/drivers/net/wireless/adm8211.c
index 6e18c9d36787..9a1e0c514c08 100644
--- a/drivers/net/wireless/adm8211.c
+++ b/drivers/net/wireless/adm8211.c
@@ -1314,9 +1314,10 @@ static int adm8211_set_ssid(struct ieee80211_hw *dev, u8 *ssid, size_t ssid_len)
 	return 0;
 }
 
-static int adm8211_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
+static int adm8211_config(struct ieee80211_hw *dev, u32 changed)
 {
 	struct adm8211_priv *priv = dev->priv;
+	struct ieee80211_conf *conf = &dev->conf;
 	int channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
 
 	if (channel != priv->channel) {
diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 9e47d727e220..fcd688765d04 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -219,8 +219,7 @@ static int ath5k_add_interface(struct ieee80211_hw *hw,
 		struct ieee80211_if_init_conf *conf);
 static void ath5k_remove_interface(struct ieee80211_hw *hw,
 		struct ieee80211_if_init_conf *conf);
-static int ath5k_config(struct ieee80211_hw *hw,
-		struct ieee80211_conf *conf);
+static int ath5k_config(struct ieee80211_hw *hw, u32 changed);
 static int ath5k_config_interface(struct ieee80211_hw *hw,
 		struct ieee80211_vif *vif,
 		struct ieee80211_if_conf *conf);
@@ -2780,10 +2779,10 @@ end:
  * TODO: Phy disable/diversity etc
  */
 static int
-ath5k_config(struct ieee80211_hw *hw,
-			struct ieee80211_conf *conf)
+ath5k_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct ath5k_softc *sc = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
 
 	sc->bintval = conf->beacon_int;
 	sc->power_level = conf->power_level;
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 5e087c92a6d9..f49910799ede 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -1230,11 +1230,11 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
 			__func__, error);
 }
 
-static int ath9k_config(struct ieee80211_hw *hw,
-			struct ieee80211_conf *conf)
+static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct ath_softc *sc = hw->priv;
 	struct ieee80211_channel *curchan = hw->conf.channel;
+	struct ieee80211_conf *conf = &hw->conf;
 	int pos;
 
 	DPRINTF(sc, ATH_DBG_CONFIG, "%s: Set channel: %d MHz\n",
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 6b85428b0e1d..2e81af1022e4 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3320,11 +3320,12 @@ init_failure:
 	return err;
 }
 
-static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct b43_wl *wl = hw_to_b43_wl(hw);
 	struct b43_wldev *dev;
 	struct b43_phy *phy;
+	struct ieee80211_conf *conf = &hw->conf;
 	unsigned long flags;
 	int antenna;
 	int err = 0;
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 867f01ce45c7..793cc396562f 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -2557,11 +2557,12 @@ init_failure:
 }
 
 static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
-				   struct ieee80211_conf *conf)
+				   u32 changed)
 {
 	struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
 	struct b43legacy_wldev *dev;
 	struct b43legacy_phy *phy;
+	struct ieee80211_conf *conf = &hw->conf;
 	unsigned long flags;
 	unsigned int new_phymode = 0xFFFF;
 	int antenna_tx;
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index e6695e80fb53..79a24410dd0a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2734,10 +2734,11 @@ static int iwl4965_mac_add_interface(struct ieee80211_hw *hw,
  * be set inappropriately and the driver currently sets the hardware up to
  * use it whenever needed.
  */
-static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+static int iwl4965_mac_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct iwl_priv *priv = hw->priv;
 	const struct iwl_channel_info *ch_info;
+	struct ieee80211_conf *conf = &hw->conf;
 	unsigned long flags;
 	int ret = 0;
 	u16 channel;
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index d3a2966d9181..b1464c71ea0a 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -6415,7 +6415,7 @@ static void iwl3945_bg_abort_scan(struct work_struct *work)
 	mutex_unlock(&priv->mutex);
 }
 
-static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
+static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed);
 
 static void iwl3945_bg_scan_completed(struct work_struct *work)
 {
@@ -6428,7 +6428,7 @@ static void iwl3945_bg_scan_completed(struct work_struct *work)
 		return;
 
 	if (test_bit(STATUS_CONF_PENDING, &priv->status))
-		iwl3945_mac_config(priv->hw, ieee80211_get_hw_conf(priv->hw));
+		iwl3945_mac_config(priv->hw, 0);
 
 	ieee80211_scan_completed(priv->hw);
 
@@ -6616,10 +6616,11 @@ static int iwl3945_mac_add_interface(struct ieee80211_hw *hw,
  * be set inappropriately and the driver currently sets the hardware up to
  * use it whenever needed.
  */
-static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+static int iwl3945_mac_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct iwl3945_priv *priv = hw->priv;
 	const struct iwl3945_channel_info *ch_info;
+	struct ieee80211_conf *conf = &hw->conf;
 	unsigned long flags;
 	int ret = 0;
 
diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c
index feff945ad856..241ddcfa352e 100644
--- a/drivers/net/wireless/libertas_tf/main.c
+++ b/drivers/net/wireless/libertas_tf/main.c
@@ -354,9 +354,11 @@ static void lbtf_op_remove_interface(struct ieee80211_hw *hw,
 	priv->vif = NULL;
 }
 
-static int lbtf_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+static int lbtf_op_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct lbtf_private *priv = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
+
 	if (conf->channel->center_freq != priv->cur_freq) {
 		priv->cur_freq = conf->channel->center_freq;
 		lbtf_set_channel(priv, conf->channel->hw_value);
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 3f236b546683..e2aeef8de707 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -359,10 +359,10 @@ static void mac80211_hwsim_beacon(unsigned long arg)
 }
 
 
-static int mac80211_hwsim_config(struct ieee80211_hw *hw,
-				 struct ieee80211_conf *conf)
+static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct mac80211_hwsim_data *data = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
 
 	printk(KERN_DEBUG "%s:%s (freq=%d radio_enabled=%d beacon_int=%d)\n",
 	       wiphy_name(hw->wiphy), __func__,
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
index b3e75eb4d5ba..b3c297ed00cd 100644
--- a/drivers/net/wireless/p54/p54common.c
+++ b/drivers/net/wireless/p54/p54common.c
@@ -1192,10 +1192,11 @@ static void p54_remove_interface(struct ieee80211_hw *dev,
 	p54_set_filter(dev, 0, NULL);
 }
 
-static int p54_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
+static int p54_config(struct ieee80211_hw *dev, u32 changed)
 {
 	int ret;
 	struct p54_common *priv = dev->priv;
+	struct ieee80211_conf *conf = &dev->conf;
 
 	mutex_lock(&priv->conf_mutex);
 	priv->rx_antenna = 2; /* automatic */
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 1359a3768404..8ec8f7e9ec64 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -997,7 +997,7 @@ int rt2x00mac_add_interface(struct ieee80211_hw *hw,
 			    struct ieee80211_if_init_conf *conf);
 void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
 				struct ieee80211_if_init_conf *conf);
-int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
+int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed);
 int rt2x00mac_config_interface(struct ieee80211_hw *hw,
 			       struct ieee80211_vif *vif,
 			       struct ieee80211_if_conf *conf);
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 9e0472bd1edf..697806cf94e2 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -1245,7 +1245,7 @@ int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev)
 	/*
 	 * Reconfigure device.
 	 */
-	retval = rt2x00mac_config(rt2x00dev->hw, &rt2x00dev->hw->conf);
+	retval = rt2x00mac_config(rt2x00dev->hw, ~0);
 	if (retval)
 		goto exit;
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index 2c6cc5c374ff..da7b49a364ff 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -335,9 +335,10 @@ void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
 }
 EXPORT_SYMBOL_GPL(rt2x00mac_remove_interface);
 
-int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
 	int radio_on;
 	int status;
 
diff --git a/drivers/net/wireless/rtl8180_dev.c b/drivers/net/wireless/rtl8180_dev.c
index 9de8f57486df..e8d22393797f 100644
--- a/drivers/net/wireless/rtl8180_dev.c
+++ b/drivers/net/wireless/rtl8180_dev.c
@@ -692,9 +692,10 @@ static void rtl8180_remove_interface(struct ieee80211_hw *dev,
 	priv->vif = NULL;
 }
 
-static int rtl8180_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
+static int rtl8180_config(struct ieee80211_hw *dev, u32 changed)
 {
 	struct rtl8180_priv *priv = dev->priv;
+	struct ieee80211_conf *conf = &dev->conf;
 
 	priv->rf->set_chan(dev, conf);
 
diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c
index 9ceae9017f86..2c69ab37c650 100644
--- a/drivers/net/wireless/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl8187_dev.c
@@ -873,9 +873,10 @@ static void rtl8187_remove_interface(struct ieee80211_hw *dev,
 	mutex_unlock(&priv->conf_mutex);
 }
 
-static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
+static int rtl8187_config(struct ieee80211_hw *dev, u32 changed)
 {
 	struct rtl8187_priv *priv = dev->priv;
+	struct ieee80211_conf *conf = &dev->conf;
 	u32 reg;
 
 	mutex_lock(&priv->conf_mutex);
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index de45509d757e..6c3e21887fc8 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -743,9 +743,11 @@ static void zd_op_remove_interface(struct ieee80211_hw *hw,
 	zd_write_mac_addr(&mac->chip, NULL);
 }
 
-static int zd_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+static int zd_op_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct zd_mac *mac = zd_hw_mac(hw);
+	struct ieee80211_conf *conf = &hw->conf;
+
 	return zd_chip_set_channel(&mac->chip, conf->channel->hw_value);
 }
 
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 5f28b7f89887..34e8569b59bb 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -463,13 +463,33 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
 }
 #define IEEE80211_CONF_SHORT_SLOT_TIME (__IEEE80211_CONF_SHORT_SLOT_TIME())
 
+/**
+ * enum ieee80211_conf_changed - denotes which configuration changed
+ *
+ * @IEEE80211_CONF_CHANGE_RADIO_ENABLED: the value of radio_enabled changed
+ * @IEEE80211_CONF_CHANGE_BEACON_INTERVAL: the beacon interval changed
+ * @IEEE80211_CONF_CHANGE_LISTEN_INTERVAL: the listen interval changed
+ * @IEEE80211_CONF_CHANGE_RADIOTAP: the radiotap flag changed
+ * @IEEE80211_CONF_CHANGE_PS: the PS flag changed
+ * @IEEE80211_CONF_CHANGE_POWER: the TX power changed
+ * @IEEE80211_CONF_CHANGE_CHANNEL: the channel changed
+ */
+enum ieee80211_conf_changed {
+	IEEE80211_CONF_CHANGE_RADIO_ENABLED	= BIT(0),
+	IEEE80211_CONF_CHANGE_BEACON_INTERVAL	= BIT(1),
+	IEEE80211_CONF_CHANGE_LISTEN_INTERVAL	= BIT(2),
+	IEEE80211_CONF_CHANGE_RADIOTAP		= BIT(3),
+	IEEE80211_CONF_CHANGE_PS		= BIT(4),
+	IEEE80211_CONF_CHANGE_POWER		= BIT(5),
+	IEEE80211_CONF_CHANGE_CHANNEL		= BIT(6),
+};
+
 /**
  * struct ieee80211_conf - configuration of the device
  *
  * This struct indicates how the driver shall configure the hardware.
  *
  * @radio_enabled: when zero, driver is required to switch off the radio.
- *	TODO make a flag
  * @beacon_int: beacon interval (TODO make interface config)
  * @listen_interval: listen interval in units of beacon interval
  * @flags: configuration flags defined above
@@ -479,13 +499,13 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
  * @channel: the channel to tune to
  */
 struct ieee80211_conf {
-	int radio_enabled;
-
 	int beacon_int;
-	u16 listen_interval;
 	u32 flags;
 	int power_level;
 
+	u16 listen_interval;
+	bool radio_enabled;
+
 	struct ieee80211_channel *channel;
 
 	struct ieee80211_sta_ht_cap ht_cap;
@@ -1214,7 +1234,7 @@ struct ieee80211_ops {
 			     struct ieee80211_if_init_conf *conf);
 	void (*remove_interface)(struct ieee80211_hw *hw,
 				 struct ieee80211_if_init_conf *conf);
-	int (*config)(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
+	int (*config)(struct ieee80211_hw *hw, u32 changed);
 	int (*config_interface)(struct ieee80211_hw *hw,
 				struct ieee80211_vif *vif,
 				struct ieee80211_if_conf *conf);
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index a5dea617aab3..8ea30902d5db 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -394,7 +394,8 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 	 */
 	if (params->interval) {
 		sdata->local->hw.conf.beacon_int = params->interval;
-		ieee80211_hw_config(sdata->local);
+		ieee80211_hw_config(sdata->local,
+				    IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
 		/*
 		 * We updated some parameter so if below bails out
 		 * it's not an error.
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 88015838a63c..1deb787ff8dc 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -875,7 +875,7 @@ static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
 }
 
 
-int ieee80211_hw_config(struct ieee80211_local *local);
+int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
 int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 8336fee68d3e..df28c5f7c9c0 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -65,7 +65,7 @@ static int ieee80211_open(struct net_device *dev)
 	struct ieee80211_if_init_conf conf;
 	u32 changed = 0;
 	int res;
-	bool need_hw_reconfig = 0;
+	u32 hw_reconf_flags = 0;
 	u8 null_addr[ETH_ALEN] = {0};
 
 	/* fail early if user set an invalid address */
@@ -152,7 +152,8 @@ static int ieee80211_open(struct net_device *dev)
 			res = local->ops->start(local_to_hw(local));
 		if (res)
 			goto err_del_bss;
-		need_hw_reconfig = 1;
+		/* we're brought up, everything changes */
+		hw_reconf_flags = ~0;
 		ieee80211_led_radio(local, local->hw.conf.radio_enabled);
 	}
 
@@ -198,8 +199,10 @@ static int ieee80211_open(struct net_device *dev)
 
 		/* must be before the call to ieee80211_configure_filter */
 		local->monitors++;
-		if (local->monitors == 1)
+		if (local->monitors == 1) {
 			local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
+			hw_reconf_flags |= IEEE80211_CONF_CHANGE_RADIOTAP;
+		}
 
 		if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
 			local->fif_fcsfail++;
@@ -279,8 +282,8 @@ static int ieee80211_open(struct net_device *dev)
 		atomic_inc(&local->iff_promiscs);
 
 	local->open_count++;
-	if (need_hw_reconfig) {
-		ieee80211_hw_config(local);
+	if (hw_reconf_flags) {
+		ieee80211_hw_config(local, hw_reconf_flags);
 		/*
 		 * set default queue parameters so drivers don't
 		 * need to initialise the hardware if the hardware
@@ -322,6 +325,7 @@ static int ieee80211_stop(struct net_device *dev)
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_init_conf conf;
 	struct sta_info *sta;
+	u32 hw_reconf_flags = 0;
 
 	/*
 	 * Stop TX on this interface first.
@@ -405,8 +409,10 @@ static int ieee80211_stop(struct net_device *dev)
 		}
 
 		local->monitors--;
-		if (local->monitors == 0)
+		if (local->monitors == 0) {
 			local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
+			hw_reconf_flags |= IEEE80211_CONF_CHANGE_RADIOTAP;
+		}
 
 		if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
 			local->fif_fcsfail--;
@@ -504,8 +510,15 @@ static int ieee80211_stop(struct net_device *dev)
 
 		tasklet_disable(&local->tx_pending_tasklet);
 		tasklet_disable(&local->tasklet);
+
+		/* no reconfiguring after stop! */
+		hw_reconf_flags = 0;
 	}
 
+	/* do after stop to avoid reconfiguring when we stop anyway */
+	if (hw_reconf_flags)
+		ieee80211_hw_config(local, hw_reconf_flags);
+
 	return 0;
 }
 
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 07f812755e55..c936017f6d48 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -197,31 +197,34 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
 					    &sdata->vif, &conf);
 }
 
-int ieee80211_hw_config(struct ieee80211_local *local)
+int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 {
 	struct ieee80211_channel *chan;
 	int ret = 0;
+	int power;
 
 	if (local->sw_scanning)
 		chan = local->scan_channel;
 	else
 		chan = local->oper_channel;
 
-	local->hw.conf.channel = chan;
+	if (chan != local->hw.conf.channel) {
+		local->hw.conf.channel = chan;
+		changed |= IEEE80211_CONF_CHANGE_CHANNEL;
+	}
+
 
 	if (!local->hw.conf.power_level)
-		local->hw.conf.power_level = chan->max_power;
+		power = chan->max_power;
 	else
-		local->hw.conf.power_level = min(chan->max_power,
-					       local->hw.conf.power_level);
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-	printk(KERN_DEBUG "%s: HW CONFIG: freq=%d\n",
-	       wiphy_name(local->hw.wiphy), chan->center_freq);
-#endif
+		power = min(chan->max_power, local->hw.conf.power_level);
+	if (local->hw.conf.power_level != power) {
+		changed |= IEEE80211_CONF_CHANGE_POWER;
+		local->hw.conf.power_level = power;
+	}
 
-	if (local->open_count) {
-		ret = local->ops->config(local_to_hw(local), &local->hw.conf);
+	if (changed && local->open_count) {
+		ret = local->ops->config(local_to_hw(local), changed);
 		/*
 		 * HW reconfiguration should never fail, the driver has told
 		 * us what it can support so it should live up to that promise.
@@ -672,7 +675,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
 	local->short_retry_limit = 7;
 	local->long_retry_limit = 4;
-	local->hw.conf.radio_enabled = 1;
+	local->hw.conf.radio_enabled = true;
 
 	INIT_LIST_HEAD(&local->interfaces);
 
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 0989b1c062e3..7372d7abb8c0 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -448,12 +448,17 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
 
 	if (local->hw_scanning) {
 		local->hw_scanning = false;
-		ieee80211_hw_config(local);
+		/*
+		 * Somebody might have requested channel change during scan
+		 * that we won't have acted upon, try now. ieee80211_hw_config
+		 * will set the flag based on actual changes.
+		 */
+		ieee80211_hw_config(local, 0);
 		goto done;
 	}
 
 	local->sw_scanning = false;
-	ieee80211_hw_config(local);
+	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
 
 	netif_tx_lock_bh(local->mdev);
 	netif_addr_lock(local->mdev);
@@ -540,7 +545,8 @@ void ieee80211_scan_work(struct work_struct *work)
 
 		if (!skip) {
 			local->scan_channel = chan;
-			if (ieee80211_hw_config(local))
+			if (ieee80211_hw_config(local,
+						IEEE80211_CONF_CHANGE_CHANNEL))
 				skip = 1;
 		}
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 9941a60a2327..3288c3de67ca 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -645,7 +645,8 @@ int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freqMHz)
 		if (local->sw_scanning || local->hw_scanning)
 			ret = 0;
 		else
-			ret = ieee80211_hw_config(local);
+			ret = ieee80211_hw_config(
+				local, IEEE80211_CONF_CHANGE_CHANNEL);
 
 		rate_control_clear(local);
 	}
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index a3af15141244..94c4b35eeb14 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -656,7 +656,7 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
 				      union iwreq_data *data, char *extra)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-	bool need_reconfig = 0;
+	u32 reconf_flags = 0;
 	int new_power_level;
 
 	if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
@@ -680,17 +680,17 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
 
 	if (local->hw.conf.power_level != new_power_level) {
 		local->hw.conf.power_level = new_power_level;
-		need_reconfig = 1;
+		reconf_flags |= IEEE80211_CONF_CHANGE_POWER;
 	}
 
 	if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
 		local->hw.conf.radio_enabled = !(data->txpower.disabled);
-		need_reconfig = 1;
+		reconf_flags |= IEEE80211_CONF_CHANGE_RADIO_ENABLED;
 		ieee80211_led_radio(local, local->hw.conf.radio_enabled);
 	}
 
-	if (need_reconfig)
-		ieee80211_hw_config(local);
+	if (reconf_flags)
+		ieee80211_hw_config(local, reconf_flags);
 
 	return 0;
 }
@@ -976,7 +976,7 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
 
 	if (wrq->disabled) {
 		conf->flags &= ~IEEE80211_CONF_PS;
-		return ieee80211_hw_config(local);
+		return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 	}
 
 	switch (wrq->flags & IW_POWER_MODE) {
@@ -989,7 +989,7 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
 		return -EINVAL;
 	}
 
-	return ieee80211_hw_config(local);
+	return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 }
 
 static int ieee80211_ioctl_giwpower(struct net_device *dev,
-- 
cgit v1.2.3


From 9124b07740c51cbc6e358dd0c4abc6ee8ded084d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 14 Oct 2008 19:17:54 +0200
Subject: mac80211: make retry limits part of hw config

Instead of having a separate callback, use the HW config callback
with a new flag to change retry limits.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath9k/main.c       |  1 -
 drivers/net/wireless/b43/main.c         | 60 +++++++++++++--------------------
 drivers/net/wireless/b43legacy/main.c   | 59 ++++++++++++--------------------
 drivers/net/wireless/rt2x00/rt2400pci.c |  2 +-
 drivers/net/wireless/rt2x00/rt2500pci.c |  2 +-
 drivers/net/wireless/rt2x00/rt2x00.h    |  3 ++
 drivers/net/wireless/rt2x00/rt2x00mac.c |  9 +++++
 drivers/net/wireless/rt2x00/rt61pci.c   |  2 +-
 drivers/net/wireless/rt2x00/rt73usb.c   |  2 +-
 include/net/mac80211.h                  | 14 +++++---
 net/mac80211/debugfs.c                  |  4 +--
 net/mac80211/ieee80211_i.h              |  2 --
 net/mac80211/main.c                     |  4 +--
 net/mac80211/tx.c                       |  4 +--
 net/mac80211/wext.c                     | 28 +++++++--------
 15 files changed, 89 insertions(+), 107 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index f49910799ede..41cd114c438c 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -1659,7 +1659,6 @@ static struct ieee80211_ops ath9k_ops = {
 	.get_tkip_seq       = NULL,
 	.set_rts_threshold  = NULL,
 	.set_frag_threshold = NULL,
-	.set_retry_limit    = NULL,
 	.get_tsf 	    = ath9k_get_tsf,
 	.reset_tsf 	    = ath9k_reset_tsf,
 	.tx_last_beacon     = NULL,
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 2e81af1022e4..9aeeb6553a91 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -3320,6 +3320,22 @@ init_failure:
 	return err;
 }
 
+/* Write the short and long frame retry limit values. */
+static void b43_set_retry_limits(struct b43_wldev *dev,
+				 unsigned int short_retry,
+				 unsigned int long_retry)
+{
+	/* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
+	 * the chip-internal counter. */
+	short_retry = min(short_retry, (unsigned int)0xF);
+	long_retry = min(long_retry, (unsigned int)0xF);
+
+	b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
+			short_retry);
+	b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
+			long_retry);
+}
+
 static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct b43_wl *wl = hw_to_b43_wl(hw);
@@ -3340,6 +3356,13 @@ static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
 	dev = wl->current_dev;
 	phy = &dev->phy;
 
+	if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
+		b43_set_retry_limits(dev, conf->short_frame_max_tx_count,
+					  conf->long_frame_max_tx_count);
+	changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
+	if (!changed)
+		goto out_unlock_mutex;
+
 	/* Disable IRQs while reconfiguring the device.
 	 * This makes it possible to drop the spinlock throughout
 	 * the reconfiguration process. */
@@ -3859,22 +3882,6 @@ static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev)
 #endif /* CONFIG_SSB_DRIVER_PCICORE */
 }
 
-/* Write the short and long frame retry limit values. */
-static void b43_set_retry_limits(struct b43_wldev *dev,
-				 unsigned int short_retry,
-				 unsigned int long_retry)
-{
-	/* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
-	 * the chip-internal counter. */
-	short_retry = min(short_retry, (unsigned int)0xF);
-	long_retry = min(long_retry, (unsigned int)0xF);
-
-	b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
-			short_retry);
-	b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
-			long_retry);
-}
-
 static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle)
 {
 	u16 pu_delay;
@@ -4195,26 +4202,6 @@ static void b43_op_stop(struct ieee80211_hw *hw)
 	cancel_work_sync(&(wl->txpower_adjust_work));
 }
 
-static int b43_op_set_retry_limit(struct ieee80211_hw *hw,
-				  u32 short_retry_limit, u32 long_retry_limit)
-{
-	struct b43_wl *wl = hw_to_b43_wl(hw);
-	struct b43_wldev *dev;
-	int err = 0;
-
-	mutex_lock(&wl->mutex);
-	dev = wl->current_dev;
-	if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) {
-		err = -ENODEV;
-		goto out_unlock;
-	}
-	b43_set_retry_limits(dev, short_retry_limit, long_retry_limit);
-out_unlock:
-	mutex_unlock(&wl->mutex);
-
-	return err;
-}
-
 static int b43_op_beacon_set_tim(struct ieee80211_hw *hw,
 				 struct ieee80211_sta *sta, bool set)
 {
@@ -4251,7 +4238,6 @@ static const struct ieee80211_ops b43_hw_ops = {
 	.get_tx_stats		= b43_op_get_tx_stats,
 	.start			= b43_op_start,
 	.stop			= b43_op_stop,
-	.set_retry_limit	= b43_op_set_retry_limit,
 	.set_tim		= b43_op_beacon_set_tim,
 	.sta_notify		= b43_op_sta_notify,
 };
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 793cc396562f..78e46365f69e 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -2556,6 +2556,20 @@ init_failure:
 	return err;
 }
 
+/* Write the short and long frame retry limit values. */
+static void b43legacy_set_retry_limits(struct b43legacy_wldev *dev,
+				       unsigned int short_retry,
+				       unsigned int long_retry)
+{
+	/* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
+	 * the chip-internal counter. */
+	short_retry = min(short_retry, (unsigned int)0xF);
+	long_retry = min(long_retry, (unsigned int)0xF);
+
+	b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0006, short_retry);
+	b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry);
+}
+
 static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
 				   u32 changed)
 {
@@ -2577,6 +2591,14 @@ static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
 	dev = wl->current_dev;
 	phy = &dev->phy;
 
+	if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
+		b43legacy_set_retry_limits(dev,
+					   conf->short_frame_max_tx_count,
+					   conf->long_frame_max_tx_count);
+	changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
+	if (!changed)
+		goto out_unlock_mutex;
+
 	/* Switch the PHY mode (if necessary). */
 	switch (conf->channel->band) {
 	case IEEE80211_BAND_2GHZ:
@@ -2989,20 +3011,6 @@ static void b43legacy_imcfglo_timeouts_workaround(struct b43legacy_wldev *dev)
 #endif /* CONFIG_SSB_DRIVER_PCICORE */
 }
 
-/* Write the short and long frame retry limit values. */
-static void b43legacy_set_retry_limits(struct b43legacy_wldev *dev,
-				       unsigned int short_retry,
-				       unsigned int long_retry)
-{
-	/* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
-	 * the chip-internal counter. */
-	short_retry = min(short_retry, (unsigned int)0xF);
-	long_retry = min(long_retry, (unsigned int)0xF);
-
-	b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0006, short_retry);
-	b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry);
-}
-
 static void b43legacy_set_synth_pu_delay(struct b43legacy_wldev *dev,
 					  bool idle) {
 	u16 pu_delay = 1050;
@@ -3367,28 +3375,6 @@ static void b43legacy_op_stop(struct ieee80211_hw *hw)
 	mutex_unlock(&wl->mutex);
 }
 
-static int b43legacy_op_set_retry_limit(struct ieee80211_hw *hw,
-					u32 short_retry_limit,
-					u32 long_retry_limit)
-{
-	struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
-	struct b43legacy_wldev *dev;
-	int err = 0;
-
-	mutex_lock(&wl->mutex);
-	dev = wl->current_dev;
-	if (unlikely(!dev ||
-		     (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED))) {
-		err = -ENODEV;
-		goto out_unlock;
-	}
-	b43legacy_set_retry_limits(dev, short_retry_limit, long_retry_limit);
-out_unlock:
-	mutex_unlock(&wl->mutex);
-
-	return err;
-}
-
 static int b43legacy_op_beacon_set_tim(struct ieee80211_hw *hw,
 				       struct ieee80211_sta *sta, bool set)
 {
@@ -3414,7 +3400,6 @@ static const struct ieee80211_ops b43legacy_hw_ops = {
 	.get_tx_stats		= b43legacy_op_get_tx_stats,
 	.start			= b43legacy_op_start,
 	.stop			= b43legacy_op_stop,
-	.set_retry_limit	= b43legacy_op_set_retry_limit,
 	.set_tim		= b43legacy_op_beacon_set_tim,
 };
 
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index 96eaf5f4dc68..1adca7a1b9dc 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1574,7 +1574,6 @@ static const struct ieee80211_ops rt2400pci_mac80211_ops = {
 	.config_interface	= rt2x00mac_config_interface,
 	.configure_filter	= rt2x00mac_configure_filter,
 	.get_stats		= rt2x00mac_get_stats,
-	.set_retry_limit	= rt2400pci_set_retry_limit,
 	.bss_info_changed	= rt2x00mac_bss_info_changed,
 	.conf_tx		= rt2400pci_conf_tx,
 	.get_tx_stats		= rt2x00mac_get_tx_stats,
@@ -1603,6 +1602,7 @@ static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {
 	.config_intf		= rt2400pci_config_intf,
 	.config_erp		= rt2400pci_config_erp,
 	.config			= rt2400pci_config,
+	.set_retry_limit	= rt2400pci_set_retry_limit,
 };
 
 static const struct data_queue_desc rt2400pci_queue_rx = {
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 8b772ab613e4..85b0387f46eb 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1874,7 +1874,6 @@ static const struct ieee80211_ops rt2500pci_mac80211_ops = {
 	.config_interface	= rt2x00mac_config_interface,
 	.configure_filter	= rt2x00mac_configure_filter,
 	.get_stats		= rt2x00mac_get_stats,
-	.set_retry_limit	= rt2500pci_set_retry_limit,
 	.bss_info_changed	= rt2x00mac_bss_info_changed,
 	.conf_tx		= rt2x00mac_conf_tx,
 	.get_tx_stats		= rt2x00mac_get_tx_stats,
@@ -1903,6 +1902,7 @@ static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = {
 	.config_intf		= rt2500pci_config_intf,
 	.config_erp		= rt2500pci_config_erp,
 	.config			= rt2500pci_config,
+	.set_retry_limit	= rt2500pci_set_retry_limit,
 };
 
 static const struct data_queue_desc rt2500pci_queue_rx = {
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 8ec8f7e9ec64..0887e895d5c1 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -599,6 +599,9 @@ struct rt2x00lib_ops {
 #define CONFIG_UPDATE_SLOT_TIME 	( 1 << 5 )
 #define CONFIG_UPDATE_BEACON_INT	( 1 << 6 )
 #define CONFIG_UPDATE_ALL		0xffff
+
+	int (*set_retry_limit) (struct ieee80211_hw *hw,
+				u32 short_limit, u32 long_limit);
 };
 
 /*
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index da7b49a364ff..931183369f07 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -349,6 +349,15 @@ int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed)
 	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		return 0;
 
+	if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) {
+		rt2x00dev->ops->lib->set_retry_limit(hw,
+			conf->short_frame_max_tx_count,
+			conf->long_frame_max_tx_count);
+	}
+	changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
+	if (!changed)
+		return 0;
+
 	/*
 	 * Only change device state when the radio is enabled. It does not
 	 * matter what parameters we have configured when the radio is disabled
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 45f69f83552c..08eb896ae36c 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -2724,7 +2724,6 @@ static const struct ieee80211_ops rt61pci_mac80211_ops = {
 	.configure_filter	= rt2x00mac_configure_filter,
 	.set_key		= rt2x00mac_set_key,
 	.get_stats		= rt2x00mac_get_stats,
-	.set_retry_limit	= rt61pci_set_retry_limit,
 	.bss_info_changed	= rt2x00mac_bss_info_changed,
 	.conf_tx		= rt61pci_conf_tx,
 	.get_tx_stats		= rt2x00mac_get_tx_stats,
@@ -2757,6 +2756,7 @@ static const struct rt2x00lib_ops rt61pci_rt2x00_ops = {
 	.config_intf		= rt61pci_config_intf,
 	.config_erp		= rt61pci_config_erp,
 	.config			= rt61pci_config,
+	.set_retry_limit	= rt61pci_set_retry_limit,
 };
 
 static const struct data_queue_desc rt61pci_queue_rx = {
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 336fecb04c46..7f89782a34e4 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -2315,7 +2315,6 @@ static const struct ieee80211_ops rt73usb_mac80211_ops = {
 	.configure_filter	= rt2x00mac_configure_filter,
 	.set_key		= rt2x00mac_set_key,
 	.get_stats		= rt2x00mac_get_stats,
-	.set_retry_limit	= rt73usb_set_retry_limit,
 	.bss_info_changed	= rt2x00mac_bss_info_changed,
 	.conf_tx		= rt73usb_conf_tx,
 	.get_tx_stats		= rt2x00mac_get_tx_stats,
@@ -2347,6 +2346,7 @@ static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
 	.config_intf		= rt73usb_config_intf,
 	.config_erp		= rt73usb_config_erp,
 	.config			= rt73usb_config,
+	.set_retry_limit	= rt73usb_set_retry_limit,
 };
 
 static const struct data_queue_desc rt73usb_queue_rx = {
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 34e8569b59bb..fd52300b96d0 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -473,6 +473,7 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
  * @IEEE80211_CONF_CHANGE_PS: the PS flag changed
  * @IEEE80211_CONF_CHANGE_POWER: the TX power changed
  * @IEEE80211_CONF_CHANGE_CHANNEL: the channel changed
+ * @IEEE80211_CONF_CHANGE_RETRY_LIMITS: retry limits changed
  */
 enum ieee80211_conf_changed {
 	IEEE80211_CONF_CHANGE_RADIO_ENABLED	= BIT(0),
@@ -482,6 +483,7 @@ enum ieee80211_conf_changed {
 	IEEE80211_CONF_CHANGE_PS		= BIT(4),
 	IEEE80211_CONF_CHANGE_POWER		= BIT(5),
 	IEEE80211_CONF_CHANGE_CHANNEL		= BIT(6),
+	IEEE80211_CONF_CHANGE_RETRY_LIMITS	= BIT(7),
 };
 
 /**
@@ -497,6 +499,12 @@ enum ieee80211_conf_changed {
  * @ht_cap: describes current self configuration of 802.11n HT capabilities
  * @ht_bss_conf: describes current BSS configuration of 802.11n HT parameters
  * @channel: the channel to tune to
+ * @long_frame_max_tx_count: Maximum number of transmissions for a "long" frame
+ *    (a frame not RTS protected), called "dot11LongRetryLimit" in 802.11,
+ *    but actually means the number of transmissions not the number of retries
+ * @short_frame_max_tx_count: Maximum number of transmissions for a "short"
+ *    frame, called "dot11ShortRetryLimit" in 802.11, but actually means the
+ *    number of transmissions not the number of retries
  */
 struct ieee80211_conf {
 	int beacon_int;
@@ -506,6 +514,8 @@ struct ieee80211_conf {
 	u16 listen_interval;
 	bool radio_enabled;
 
+	u8 long_frame_max_tx_count, short_frame_max_tx_count;
+
 	struct ieee80211_channel *channel;
 
 	struct ieee80211_sta_ht_cap ht_cap;
@@ -1190,8 +1200,6 @@ enum ieee80211_ampdu_mlme_action {
  *	the device does fragmentation by itself; if this method is assigned then
  *	the stack will not do fragmentation.
  *
- * @set_retry_limit: Configuration of retry limits (if device needs it)
- *
  * @sta_notify: Notifies low level driver about addition or removal
  *	of assocaited station or AP.
  *
@@ -1261,8 +1269,6 @@ struct ieee80211_ops {
 			     u32 *iv32, u16 *iv16);
 	int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value);
 	int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value);
-	int (*set_retry_limit)(struct ieee80211_hw *hw,
-			       u32 short_retry, u32 long_retr);
 	void (*sta_notify)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 			enum sta_notify_cmd, struct ieee80211_sta *sta);
 	int (*conf_tx)(struct ieee80211_hw *hw, u16 queue,
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index 767dbca50adb..2697a2fe608f 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -52,9 +52,9 @@ DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
 DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
 		      local->fragmentation_threshold);
 DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
-		      local->short_retry_limit);
+		      local->hw.conf.short_frame_max_tx_count);
 DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
-		      local->long_retry_limit);
+		      local->hw.conf.long_frame_max_tx_count);
 DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
 		      local->total_ps_buffered);
 DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x",
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 819844726dd4..f1ef522bfe07 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -635,8 +635,6 @@ struct ieee80211_local {
 
 	int rts_threshold;
 	int fragmentation_threshold;
-	int short_retry_limit; /* dot11ShortRetryLimit */
-	int long_retry_limit; /* dot11LongRetryLimit */
 
 	struct crypto_blkcipher *wep_tx_tfm;
 	struct crypto_blkcipher *wep_rx_tfm;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index c936017f6d48..59be9e782699 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -673,8 +673,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 
 	local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
 	local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
-	local->short_retry_limit = 7;
-	local->long_retry_limit = 4;
+	local->hw.conf.long_frame_max_tx_count = 4;
+	local->hw.conf.short_frame_max_tx_count = 7;
 	local->hw.conf.radio_enabled = true;
 
 	INIT_LIST_HEAD(&local->interfaces);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 8bcabefa86e0..dd440a07634e 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -505,10 +505,10 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
 				info->flags |=
 					IEEE80211_TX_CTL_LONG_RETRY_LIMIT;
 				info->control.retry_limit =
-					tx->local->long_retry_limit;
+					tx->local->hw.conf.long_frame_max_tx_count - 1;
 			} else {
 				info->control.retry_limit =
-					tx->local->short_retry_limit;
+					tx->local->hw.conf.short_frame_max_tx_count - 1;
 			}
 		} else {
 			info->control.retry_limit = 1;
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 94c4b35eeb14..f7e442f80a17 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -802,21 +802,16 @@ static int ieee80211_ioctl_siwretry(struct net_device *dev,
 	    (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 		return -EINVAL;
 
-	if (retry->flags & IW_RETRY_MAX)
-		local->long_retry_limit = retry->value;
-	else if (retry->flags & IW_RETRY_MIN)
-		local->short_retry_limit = retry->value;
-	else {
-		local->long_retry_limit = retry->value;
-		local->short_retry_limit = retry->value;
+	if (retry->flags & IW_RETRY_MAX) {
+		local->hw.conf.long_frame_max_tx_count = retry->value;
+	} else if (retry->flags & IW_RETRY_MIN) {
+		local->hw.conf.short_frame_max_tx_count = retry->value;
+	} else {
+		local->hw.conf.long_frame_max_tx_count = retry->value;
+		local->hw.conf.short_frame_max_tx_count = retry->value;
 	}
 
-	if (local->ops->set_retry_limit) {
-		return local->ops->set_retry_limit(
-			local_to_hw(local),
-			local->short_retry_limit,
-			local->long_retry_limit);
-	}
+	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
 
 	return 0;
 }
@@ -833,14 +828,15 @@ static int ieee80211_ioctl_giwretry(struct net_device *dev,
 		/* first return min value, iwconfig will ask max value
 		 * later if needed */
 		retry->flags |= IW_RETRY_LIMIT;
-		retry->value = local->short_retry_limit;
-		if (local->long_retry_limit != local->short_retry_limit)
+		retry->value = local->hw.conf.short_frame_max_tx_count;
+		if (local->hw.conf.long_frame_max_tx_count !=
+		    local->hw.conf.short_frame_max_tx_count)
 			retry->flags |= IW_RETRY_MIN;
 		return 0;
 	}
 	if (retry->flags & IW_RETRY_MAX) {
 		retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
-		retry->value = local->long_retry_limit;
+		retry->value = local->hw.conf.long_frame_max_tx_count;
 	}
 
 	return 0;
-- 
cgit v1.2.3


From bda3933a8aceedd03e0dd410844bd310033ca756 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Sat, 11 Oct 2008 01:51:51 +0200
Subject: mac80211: move bss_conf into vif

Move bss_conf into the vif struct so that drivers can
access it during ->tx without having to store it in
the private data or similar. No driver updates because
this is only for when they want to start using it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h        |  3 +++
 net/mac80211/cfg.c            |  6 +++---
 net/mac80211/debugfs_netdev.c |  2 +-
 net/mac80211/ieee80211_i.h    |  3 ---
 net/mac80211/iface.c          |  2 +-
 net/mac80211/main.c           |  8 ++++----
 net/mac80211/mlme.c           | 30 +++++++++++++++---------------
 net/mac80211/tx.c             | 16 ++++++++--------
 net/mac80211/util.c           |  6 +++---
 9 files changed, 38 insertions(+), 38 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index fd52300b96d0..94ff3eface49 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -529,11 +529,14 @@ struct ieee80211_conf {
  * use during the life of a virtual interface.
  *
  * @type: type of this virtual interface
+ * @bss_conf: BSS configuration for this interface, either our own
+ *	or the BSS we're associated to
  * @drv_priv: data area for driver use, will always be aligned to
  *	sizeof(void *).
  */
 struct ieee80211_vif {
 	enum nl80211_iftype type;
+	struct ieee80211_bss_conf bss_conf;
 	/* must be last */
 	u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *))));
 };
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 8ea30902d5db..28382b5c7c25 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -964,16 +964,16 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 		return -EINVAL;
 
 	if (params->use_cts_prot >= 0) {
-		sdata->bss_conf.use_cts_prot = params->use_cts_prot;
+		sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
 		changed |= BSS_CHANGED_ERP_CTS_PROT;
 	}
 	if (params->use_short_preamble >= 0) {
-		sdata->bss_conf.use_short_preamble =
+		sdata->vif.bss_conf.use_short_preamble =
 			params->use_short_preamble;
 		changed |= BSS_CHANGED_ERP_PREAMBLE;
 	}
 	if (params->use_short_slot_time >= 0) {
-		sdata->bss_conf.use_short_slot =
+		sdata->vif.bss_conf.use_short_slot =
 			params->use_short_slot_time;
 		changed |= BSS_CHANGED_ERP_SLOT;
 	}
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index 56f3f29385cb..c54219301724 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -119,7 +119,7 @@ static ssize_t ieee80211_if_fmt_flags(
 		 sdata->u.sta.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "",
 		 sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "",
 		 sdata->u.sta.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "",
-		 sdata->bss_conf.use_cts_prot ? "CTS prot\n" : "");
+		 sdata->vif.bss_conf.use_cts_prot ? "CTS prot\n" : "");
 }
 __IEEE80211_IF_FILE(flags);
 
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index f1ef522bfe07..859b5b001f22 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -440,9 +440,6 @@ struct ieee80211_sub_if_data {
 
 	u16 sequence_number;
 
-	/* BSS configuration for this interface. */
-	struct ieee80211_bss_conf bss_conf;
-
 	/*
 	 * AP this belongs to: self in AP mode and
 	 * corresponding AP in VLAN mode, NULL for
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index df28c5f7c9c0..cde145221b61 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -695,7 +695,7 @@ int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
 	ieee80211_setup_sdata(sdata, type);
 
 	/* reset some values that shouldn't be kept across type changes */
-	sdata->bss_conf.basic_rates =
+	sdata->vif.bss_conf.basic_rates =
 		ieee80211_mandatory_rates(sdata->local,
 			sdata->local->hw.conf.channel->band);
 	sdata->drop_unencrypted = 0;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 59be9e782699..ab8a860444af 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -249,15 +249,15 @@ void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
 	if (local->ops->bss_info_changed)
 		local->ops->bss_info_changed(local_to_hw(local),
 					     &sdata->vif,
-					     &sdata->bss_conf,
+					     &sdata->vif.bss_conf,
 					     changed);
 }
 
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)
 {
-	sdata->bss_conf.use_cts_prot = false;
-	sdata->bss_conf.use_short_preamble = false;
-	sdata->bss_conf.use_short_slot = false;
+	sdata->vif.bss_conf.use_cts_prot = false;
+	sdata->vif.bss_conf.use_short_preamble = false;
+	sdata->vif.bss_conf.use_short_slot = false;
 	return BSS_CHANGED_ERP_CTS_PROT |
 	       BSS_CHANGED_ERP_PREAMBLE |
 	       BSS_CHANGED_ERP_SLOT;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 196dd39f6286..9c5f5c37a49e 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -572,7 +572,7 @@ static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
 static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
 					   u16 capab, bool erp_valid, u8 erp)
 {
-	struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
+	struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 	struct ieee80211_if_sta *ifsta = &sdata->u.sta;
 #endif
@@ -718,9 +718,9 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 				   ifsta->ssid, ifsta->ssid_len);
 	if (bss) {
 		/* set timing information */
-		sdata->bss_conf.beacon_int = bss->beacon_int;
-		sdata->bss_conf.timestamp = bss->timestamp;
-		sdata->bss_conf.dtim_period = bss->dtim_period;
+		sdata->vif.bss_conf.beacon_int = bss->beacon_int;
+		sdata->vif.bss_conf.timestamp = bss->timestamp;
+		sdata->vif.bss_conf.dtim_period = bss->dtim_period;
 
 		changed |= ieee80211_handle_bss_capability(sdata,
 			bss->capability, bss->has_erp_value, bss->erp_value);
@@ -730,9 +730,9 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 
 	if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
 		changed |= BSS_CHANGED_HT;
-		sdata->bss_conf.assoc_ht = 1;
-		sdata->bss_conf.ht_cap = &conf->ht_cap;
-		sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf;
+		sdata->vif.bss_conf.assoc_ht = 1;
+		sdata->vif.bss_conf.ht_cap = &conf->ht_cap;
+		sdata->vif.bss_conf.ht_bss_conf = &conf->ht_bss_conf;
 	}
 
 	ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
@@ -742,7 +742,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 	ifsta->last_probe = jiffies;
 	ieee80211_led_assoc(local, 1);
 
-	sdata->bss_conf.assoc = 1;
+	sdata->vif.bss_conf.assoc = 1;
 	/*
 	 * For now just always ask the driver to update the basic rateset
 	 * when we have associated, we aren't checking whether it actually
@@ -847,15 +847,15 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
 	changed |= ieee80211_reset_erp_info(sdata);
 
-	if (sdata->bss_conf.assoc_ht)
+	if (sdata->vif.bss_conf.assoc_ht)
 		changed |= BSS_CHANGED_HT;
 
-	sdata->bss_conf.assoc_ht = 0;
-	sdata->bss_conf.ht_cap = NULL;
-	sdata->bss_conf.ht_bss_conf = NULL;
+	sdata->vif.bss_conf.assoc_ht = 0;
+	sdata->vif.bss_conf.ht_cap = NULL;
+	sdata->vif.bss_conf.ht_bss_conf = NULL;
 
 	ieee80211_led_assoc(local, 0);
-	sdata->bss_conf.assoc = 0;
+	sdata->vif.bss_conf.assoc = 0;
 
 	ieee80211_sta_send_apinfo(sdata, ifsta);
 
@@ -1182,7 +1182,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	u64 rates, basic_rates;
 	u16 capab_info, status_code, aid;
 	struct ieee802_11_elems elems;
-	struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
+	struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
 	u8 *pos;
 	int i, j;
 	bool have_higher_than_11mbit = false;
@@ -1324,7 +1324,7 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
 	}
 
 	sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
-	sdata->bss_conf.basic_rates = basic_rates;
+	sdata->vif.bss_conf.basic_rates = basic_rates;
 
 	/* cf. IEEE 802.11 9.2.12 */
 	if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index dd440a07634e..6f3e4be97631 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -116,7 +116,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
 		if (r->bitrate > txrate->bitrate)
 			break;
 
-		if (tx->sdata->bss_conf.basic_rates & BIT(i))
+		if (tx->sdata->vif.bss_conf.basic_rates & BIT(i))
 			rate = r->bitrate;
 
 		switch (sband->band) {
@@ -150,7 +150,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
 	 * to closest integer */
 
 	dur = ieee80211_frame_duration(local, 10, rate, erp,
-				tx->sdata->bss_conf.use_short_preamble);
+				tx->sdata->vif.bss_conf.use_short_preamble);
 
 	if (next_frag_len) {
 		/* Frame is fragmented: duration increases with time needed to
@@ -159,7 +159,7 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
 		/* next fragment */
 		dur += ieee80211_frame_duration(local, next_frag_len,
 				txrate->bitrate, erp,
-				tx->sdata->bss_conf.use_short_preamble);
+				tx->sdata->vif.bss_conf.use_short_preamble);
 	}
 
 	return cpu_to_le16(dur);
@@ -463,7 +463,7 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 	} else
 		info->control.retries[0].rate_idx = -1;
 
-	if (tx->sdata->bss_conf.use_cts_prot &&
+	if (tx->sdata->vif.bss_conf.use_cts_prot &&
 	    (tx->flags & IEEE80211_TX_FRAGMENTED) && (rsel.nonerp_idx >= 0)) {
 		tx->last_frag_rate_idx = tx->rate_idx;
 		if (rsel.probe_idx >= 0)
@@ -529,7 +529,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
 	if ((tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) &&
 	    (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_ERP_G) &&
 	    (tx->flags & IEEE80211_TX_UNICAST) &&
-	    tx->sdata->bss_conf.use_cts_prot &&
+	    tx->sdata->vif.bss_conf.use_cts_prot &&
 	    !(info->flags & IEEE80211_TX_CTL_USE_RTS_CTS))
 		info->flags |= IEEE80211_TX_CTL_USE_CTS_PROTECT;
 
@@ -538,7 +538,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
 	 * available on the network at the current point in time. */
 	if (ieee80211_is_data(hdr->frame_control) &&
 	    (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
-	    tx->sdata->bss_conf.use_short_preamble &&
+	    tx->sdata->vif.bss_conf.use_short_preamble &&
 	    (!tx->sta || test_sta_flags(tx->sta, WLAN_STA_SHORT_PREAMBLE))) {
 		info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE;
 	}
@@ -558,7 +558,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
 		for (idx = 0; idx < sband->n_bitrates; idx++) {
 			if (sband->bitrates[idx].bitrate > rate->bitrate)
 				continue;
-			if (tx->sdata->bss_conf.basic_rates & BIT(idx) &&
+			if (tx->sdata->vif.bss_conf.basic_rates & BIT(idx) &&
 			    (baserate < 0 ||
 			     (sband->bitrates[baserate].bitrate
 			      < sband->bitrates[idx].bitrate)))
@@ -1977,7 +1977,7 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 	info->flags |= IEEE80211_TX_CTL_NO_ACK;
 	info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
 	info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
-	if (sdata->bss_conf.use_short_preamble &&
+	if (sdata->vif.bss_conf.use_short_preamble &&
 	    sband->bitrates[rsel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE)
 		info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE;
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 3288c3de67ca..ec8b6335f0c1 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -239,7 +239,7 @@ __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
 	erp = 0;
 	if (vif) {
 		sdata = vif_to_sdata(vif);
-		short_preamble = sdata->bss_conf.use_short_preamble;
+		short_preamble = sdata->vif.bss_conf.use_short_preamble;
 		if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
 			erp = rate->flags & IEEE80211_RATE_ERP_G;
 	}
@@ -272,7 +272,7 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
 	erp = 0;
 	if (vif) {
 		sdata = vif_to_sdata(vif);
-		short_preamble = sdata->bss_conf.use_short_preamble;
+		short_preamble = sdata->vif.bss_conf.use_short_preamble;
 		if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
 			erp = rate->flags & IEEE80211_RATE_ERP_G;
 	}
@@ -312,7 +312,7 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
 	erp = 0;
 	if (vif) {
 		sdata = vif_to_sdata(vif);
-		short_preamble = sdata->bss_conf.use_short_preamble;
+		short_preamble = sdata->vif.bss_conf.use_short_preamble;
 		if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
 			erp = rate->flags & IEEE80211_RATE_ERP_G;
 	}
-- 
cgit v1.2.3


From cb121bad67a32cde37adc2729b7e18aa4fd3063e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 14 Oct 2008 16:38:55 +0200
Subject: mac80211: add might_sleep to hw_config

Just to catch bugs when changing mac80211.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/main.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'net/mac80211/main.c')

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index ab8a860444af..ffff54944f9d 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -203,6 +203,8 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 	int ret = 0;
 	int power;
 
+	might_sleep();
+
 	if (local->sw_scanning)
 		chan = local->scan_channel;
 	else
-- 
cgit v1.2.3


From e6a9854b05c1a6af1308fe2b8c68f35abf28a3ee Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 21 Oct 2008 12:40:02 +0200
Subject: mac80211/drivers: rewrite the rate control API

So after the previous changes we were still unhappy with how
convoluted the API is and decided to make things simpler for
everybody. This completely changes the rate control API, now
taking into account 802.11n with MCS rates and more control,
most drivers don't support that though.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/adm8211.c              |  21 +-
 drivers/net/wireless/ath5k/base.c           |  34 ++-
 drivers/net/wireless/ath9k/main.c           |  18 +-
 drivers/net/wireless/ath9k/rc.c             |  40 +--
 drivers/net/wireless/ath9k/xmit.c           |  28 ++-
 drivers/net/wireless/b43/dma.c              |   4 +-
 drivers/net/wireless/b43/main.c             |   2 +-
 drivers/net/wireless/b43/pio.c              |   3 +-
 drivers/net/wireless/b43/xmit.c             |  60 ++++-
 drivers/net/wireless/b43/xmit.h             |   5 +-
 drivers/net/wireless/b43legacy/dma.c        |  46 ++--
 drivers/net/wireless/b43legacy/main.c       |   2 +-
 drivers/net/wireless/b43legacy/pio.c        |  31 ++-
 drivers/net/wireless/b43legacy/xmit.c       |  26 +-
 drivers/net/wireless/b43legacy/xmit.h       |   2 +-
 drivers/net/wireless/iwlwifi/iwl-3945-rs.c  |  57 ++---
 drivers/net/wireless/iwlwifi/iwl-3945.c     |  65 ++++-
 drivers/net/wireless/iwlwifi/iwl-3945.h     |   2 +
 drivers/net/wireless/iwlwifi/iwl-4965.c     |   8 +-
 drivers/net/wireless/iwlwifi/iwl-5000.c     |   8 +-
 drivers/net/wireless/iwlwifi/iwl-agn-rs.c   |  37 ++-
 drivers/net/wireless/iwlwifi/iwl-core.c     |  19 +-
 drivers/net/wireless/iwlwifi/iwl3945-base.c |   5 +-
 drivers/net/wireless/libertas_tf/main.c     |   4 +-
 drivers/net/wireless/mac80211_hwsim.c       |  12 +-
 drivers/net/wireless/p54/p54common.c        |  26 +-
 drivers/net/wireless/rt2x00/rt2x00dev.c     |  14 +-
 drivers/net/wireless/rt2x00/rt2x00mac.c     |  14 +-
 drivers/net/wireless/rt2x00/rt2x00queue.c   |  22 +-
 drivers/net/wireless/rt2x00/rt2x00queue.h   |   9 +-
 drivers/net/wireless/rtl8180_dev.c          |  28 +--
 drivers/net/wireless/rtl8187_dev.c          |  18 +-
 drivers/net/wireless/zd1211rw/zd_mac.c      |  32 +--
 drivers/net/wireless/zd1211rw/zd_usb.c      |   2 +-
 include/net/mac80211.h                      | 254 +++++++++++--------
 net/mac80211/ieee80211_i.h                  |   8 -
 net/mac80211/main.c                         |  54 +++-
 net/mac80211/mesh_hwmp.c                    |   6 +-
 net/mac80211/rate.c                         |  52 ++--
 net/mac80211/rate.h                         |   5 +-
 net/mac80211/rc80211_minstrel.c             |  72 +++---
 net/mac80211/rc80211_pid.h                  |   1 +
 net/mac80211/rc80211_pid_algo.c             |  27 +-
 net/mac80211/rc80211_pid_debugfs.c          |   5 +-
 net/mac80211/sta_info.h                     |   4 +-
 net/mac80211/tx.c                           | 378 +++++++++++++---------------
 net/mac80211/wext.c                         |   4 +-
 47 files changed, 889 insertions(+), 685 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/drivers/net/wireless/adm8211.c b/drivers/net/wireless/adm8211.c
index 9a1e0c514c08..b96ebfe4ef3e 100644
--- a/drivers/net/wireless/adm8211.c
+++ b/drivers/net/wireless/adm8211.c
@@ -341,15 +341,14 @@ static void adm8211_interrupt_tci(struct ieee80211_hw *dev)
 		pci_unmap_single(priv->pdev, info->mapping,
 				 info->skb->len, PCI_DMA_TODEVICE);
 
-		memset(&txi->status, 0, sizeof(txi->status));
+		ieee80211_tx_info_clear_status(txi);
+
 		skb_pull(skb, sizeof(struct adm8211_tx_hdr));
 		memcpy(skb_push(skb, info->hdrlen), skb->cb, info->hdrlen);
-		if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) {
-			if (status & TDES0_STATUS_ES)
-				txi->status.excessive_retries = 1;
-			else
-				txi->flags |= IEEE80211_TX_STAT_ACK;
-		}
+		if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) &&
+		    !(status & TDES0_STATUS_ES))
+			txi->flags |= IEEE80211_TX_STAT_ACK;
+
 		ieee80211_tx_status_irqsafe(dev, skb);
 
 		info->skb = NULL;
@@ -1691,8 +1690,10 @@ static int adm8211_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 	struct ieee80211_hdr *hdr;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_rate *txrate = ieee80211_get_tx_rate(dev, info);
+	u8 rc_flags;
 
-	short_preamble = !!(txrate->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE);
+	rc_flags = info->control.rates[0].flags;
+	short_preamble = !!(rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE);
 	plcp_signal = txrate->bitrate;
 
 	hdr = (struct ieee80211_hdr *)skb->data;
@@ -1724,10 +1725,10 @@ static int adm8211_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 	if (short_preamble)
 		txhdr->header_control |= cpu_to_le16(ADM8211_TXHDRCTL_SHORT_PREAMBLE);
 
-	if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS)
+	if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
 		txhdr->header_control |= cpu_to_le16(ADM8211_TXHDRCTL_ENABLE_RTS);
 
-	txhdr->retry_limit = info->control.retry_limit;
+	txhdr->retry_limit = info->control.rates[0].count;
 
 	adm8211_tx_raw(dev, skb, plcp_signal, hdrlen);
 
diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 44401f6f578d..3773d983ea66 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -541,8 +541,8 @@ ath5k_pci_probe(struct pci_dev *pdev,
 
 	/* set up multi-rate retry capabilities */
 	if (sc->ah->ah_version == AR5K_AR5212) {
-		hw->max_altrates = 3;
-		hw->max_altrate_tries = 11;
+		hw->max_rates = 4;
+		hw->max_rate_tries = 11;
 	}
 
 	/* Finish private driver data initialization */
@@ -1181,7 +1181,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
 		ieee80211_get_hdrlen_from_skb(skb), AR5K_PKT_TYPE_NORMAL,
 		(sc->power_level * 2),
 		ieee80211_get_tx_rate(sc->hw, info)->hw_value,
-		info->control.retry_limit, keyidx, 0, flags, 0, 0);
+		info->control.rates[0].count, keyidx, 0, flags, 0, 0);
 	if (ret)
 		goto err_unmap;
 
@@ -1193,7 +1193,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
 			break;
 
 		mrr_rate[i] = rate->hw_value;
-		mrr_tries[i] = info->control.retries[i].limit;
+		mrr_tries[i] = info->control.rates[i + 1].count;
 	}
 
 	ah->ah_setup_mrr_tx_desc(ah, ds,
@@ -1849,30 +1849,26 @@ ath5k_tx_processq(struct ath5k_softc *sc, struct ath5k_txq *txq)
 		pci_unmap_single(sc->pdev, bf->skbaddr, skb->len,
 				PCI_DMA_TODEVICE);
 
-		memset(&info->status, 0, sizeof(info->status));
-		info->tx_rate_idx = ath5k_hw_to_driver_rix(sc,
-				ts.ts_rate[ts.ts_final_idx]);
-		info->status.retry_count = ts.ts_longretry;
-
+		ieee80211_tx_info_clear_status(info);
 		for (i = 0; i < 4; i++) {
-			struct ieee80211_tx_altrate *r =
-				&info->status.retries[i];
+			struct ieee80211_tx_rate *r =
+				&info->status.rates[i];
 
 			if (ts.ts_rate[i]) {
-				r->rate_idx = ath5k_hw_to_driver_rix(sc, ts.ts_rate[i]);
-				r->limit = ts.ts_retry[i];
+				r->idx = ath5k_hw_to_driver_rix(sc, ts.ts_rate[i]);
+				r->count = ts.ts_retry[i];
 			} else {
-				r->rate_idx = -1;
-				r->limit = 0;
+				r->idx = -1;
+				r->count = 0;
 			}
 		}
 
-		info->status.excessive_retries = 0;
+		/* count the successful attempt as well */
+		info->status.rates[ts.ts_final_idx].count++;
+
 		if (unlikely(ts.ts_status)) {
 			sc->ll_stats.dot11ACKFailureCount++;
-			if (ts.ts_status & AR5K_TXERR_XRETRY)
-				info->status.excessive_retries = 1;
-			else if (ts.ts_status & AR5K_TXERR_FILT)
+			if (ts.ts_status & AR5K_TXERR_FILT)
 				info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
 		} else {
 			info->flags |= IEEE80211_TX_STAT_ACK;
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 32acaf7ff622..a7656a3ea1b0 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -457,12 +457,13 @@ void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
 	DPRINTF(sc, ATH_DBG_XMIT,
 		"%s: TX complete: skb: %p\n", __func__, skb);
 
+	ieee80211_tx_info_clear_status(tx_info);
 	if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK ||
 		tx_info->flags & IEEE80211_TX_STAT_TX_FILTERED) {
-		/* free driver's private data area of tx_info */
-		if (tx_info->driver_data[0] != NULL)
-			kfree(tx_info->driver_data[0]);
-			tx_info->driver_data[0] = NULL;
+		/* free driver's private data area of tx_info, XXX: HACK! */
+		if (tx_info->control.vif != NULL)
+			kfree(tx_info->control.vif);
+			tx_info->control.vif = NULL;
 	}
 
 	if (tx_status->flags & ATH_TX_BAR) {
@@ -470,17 +471,12 @@ void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
 		tx_status->flags &= ~ATH_TX_BAR;
 	}
 
-	if (tx_status->flags & (ATH_TX_ERROR | ATH_TX_XRETRY)) {
-		if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) {
-			/* Frame was not ACKed, but an ACK was expected */
-			tx_info->status.excessive_retries = 1;
-		}
-	} else {
+	if (!(tx_status->flags & (ATH_TX_ERROR | ATH_TX_XRETRY))) {
 		/* Frame was ACKed */
 		tx_info->flags |= IEEE80211_TX_STAT_ACK;
 	}
 
-	tx_info->status.retry_count = tx_status->retries;
+	tx_info->status.rates[0].count = tx_status->retries + 1;
 
 	ieee80211_tx_status(hw, skb);
 	if (an)
diff --git a/drivers/net/wireless/ath9k/rc.c b/drivers/net/wireless/ath9k/rc.c
index 9b2526030965..6afafeddeda2 100644
--- a/drivers/net/wireless/ath9k/rc.c
+++ b/drivers/net/wireless/ath9k/rc.c
@@ -1864,24 +1864,21 @@ static void ath_tx_status(void *priv, struct ieee80211_supported_band *sband,
 
 	hdr = (struct ieee80211_hdr *)skb->data;
 	fc = hdr->frame_control;
-	tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
+	/* XXX: UGLY HACK!! */
+	tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif;
 
 	spin_lock_bh(&sc->node_lock);
 	an = ath_node_find(sc, hdr->addr1);
 	spin_unlock_bh(&sc->node_lock);
 
-	if (!an || !priv_sta || !ieee80211_is_data(fc)) {
-		if (tx_info->driver_data[0] != NULL) {
-			kfree(tx_info->driver_data[0]);
-			tx_info->driver_data[0] = NULL;
-		}
+	if (tx_info_priv == NULL)
 		return;
-	}
-	if (tx_info->driver_data[0] != NULL) {
+
+	if (an && priv_sta && ieee80211_is_data(fc))
 		ath_rate_tx_complete(sc, an, priv_sta, tx_info_priv);
-		kfree(tx_info->driver_data[0]);
-		tx_info->driver_data[0] = NULL;
-	}
+
+	kfree(tx_info_priv);
+	tx_info->control.vif = NULL;
 }
 
 static void ath_tx_aggr_resp(struct ath_softc *sc,
@@ -1927,10 +1924,11 @@ static void ath_tx_aggr_resp(struct ath_softc *sc,
 	}
 }
 
-static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband,
-			 struct ieee80211_sta *sta, void *priv_sta,
-			 struct sk_buff *skb, struct rate_selection *sel)
+static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
+			 struct ieee80211_tx_rate_control *txrc)
 {
+	struct ieee80211_supported_band *sband = txrc->sband;
+	struct sk_buff *skb = txrc->skb;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct ath_softc *sc = priv;
 	struct ieee80211_hw *hw = sc->hw;
@@ -1945,17 +1943,17 @@ static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband,
 
 	DPRINTF(sc, ATH_DBG_RATE, "%s\n", __func__);
 
-	/* allocate driver private area of tx_info */
-	tx_info->driver_data[0] = kzalloc(sizeof(*tx_info_priv), GFP_ATOMIC);
-	ASSERT(tx_info->driver_data[0] != NULL);
-	tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
+	/* allocate driver private area of tx_info, XXX: UGLY HACK! */
+	tx_info->control.vif = kzalloc(sizeof(*tx_info_priv), GFP_ATOMIC);
+	tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif;
+	ASSERT(tx_info_priv != NULL);
 
 	lowest_idx = rate_lowest_index(sband, sta);
 	tx_info_priv->min_rate = (sband->bitrates[lowest_idx].bitrate * 2) / 10;
 	/* lowest rate for management and multicast/broadcast frames */
 	if (!ieee80211_is_data(fc) ||
 	    is_multicast_ether_addr(hdr->addr1) || !sta) {
-		sel->rate_idx = lowest_idx;
+		tx_info->control.rates[0].idx = lowest_idx;
 		return;
 	}
 
@@ -1966,8 +1964,10 @@ static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband,
 			  tx_info_priv->rcs,
 			  &is_probe,
 			  false);
+#if 0
 	if (is_probe)
 		sel->probe_idx = ath_rc_priv->tx_ratectrl.probe_rate;
+#endif
 
 	/* Ratecontrol sometimes returns invalid rate index */
 	if (tx_info_priv->rcs[0].rix != 0xff)
@@ -1975,7 +1975,7 @@ static void ath_get_rate(void *priv, struct ieee80211_supported_band *sband,
 	else
 		tx_info_priv->rcs[0].rix = ath_rc_priv->prev_data_rix;
 
-	sel->rate_idx = tx_info_priv->rcs[0].rix;
+	tx_info->control.rates[0].idx = tx_info_priv->rcs[0].rix;
 
 	/* Check if aggregation has to be enabled for this tid */
 
diff --git a/drivers/net/wireless/ath9k/xmit.c b/drivers/net/wireless/ath9k/xmit.c
index ba818cc2fb5c..9fa395418a6c 100644
--- a/drivers/net/wireless/ath9k/xmit.c
+++ b/drivers/net/wireless/ath9k/xmit.c
@@ -168,7 +168,9 @@ static void fill_min_rates(struct sk_buff *skb, struct ath_tx_control *txctl)
 
 	hdr = (struct ieee80211_hdr *)skb->data;
 	fc = hdr->frame_control;
-	tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
+
+	/* XXX: HACK! */
+	tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif;
 
 	if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc)) {
 		txctl->use_minrate = 1;
@@ -288,13 +290,16 @@ static int ath_tx_prepare(struct ath_softc *sc,
 
 	if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK)
 		txctl->flags |= ATH9K_TXDESC_NOACK;
-	if (tx_info->flags & IEEE80211_TX_CTL_USE_RTS_CTS)
+
+	if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
 		txctl->flags |= ATH9K_TXDESC_RTSENA;
 
 	/*
 	 * Setup for rate calculations.
 	 */
-	tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
+
+	/* XXX: HACK! */
+	tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif;
 	rcs = tx_info_priv->rcs;
 
 	if (ieee80211_is_data(fc) && !txctl->use_minrate) {
@@ -855,7 +860,9 @@ static int ath_tx_send_normal(struct ath_softc *sc,
 
 	skb = (struct sk_buff *)bf->bf_mpdu;
 	tx_info = IEEE80211_SKB_CB(skb);
-	tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
+
+	/* XXX: HACK! */
+	tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif;
 	memcpy(bf->bf_rcs, tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0]));
 
 	/* update starting sequence number for subsequent ADDBA request */
@@ -1249,8 +1256,9 @@ static int ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
 		}
 		skb = bf->bf_mpdu;
 		tx_info = IEEE80211_SKB_CB(skb);
-		tx_info_priv = (struct ath_tx_info_priv *)
-			tx_info->driver_data[0];
+
+		/* XXX: HACK! */
+		tx_info_priv = (struct ath_tx_info_priv *) tx_info->control.vif;
 		if (ds->ds_txstat.ts_status & ATH9K_TXERR_FILT)
 			tx_info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
 		if ((ds->ds_txstat.ts_status & ATH9K_TXERR_FILT) == 0 &&
@@ -1431,7 +1439,8 @@ static int ath_tx_send_ampdu(struct ath_softc *sc,
 
 	skb = (struct sk_buff *)bf->bf_mpdu;
 	tx_info = IEEE80211_SKB_CB(skb);
-	tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
+	/* XXX: HACK! */
+	tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif;
 	memcpy(bf->bf_rcs, tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0]));
 
 	/* Add sub-frame to BAW */
@@ -1466,7 +1475,7 @@ static u32 ath_lookup_rate(struct ath_softc *sc,
 	skb = (struct sk_buff *)bf->bf_mpdu;
 	tx_info = IEEE80211_SKB_CB(skb);
 	tx_info_priv = (struct ath_tx_info_priv *)
-		tx_info->driver_data[0];
+		tx_info->control.vif; /* XXX: HACK! */
 	memcpy(bf->bf_rcs,
 		tx_info_priv->rcs, 4 * sizeof(tx_info_priv->rcs[0]));
 
@@ -1927,7 +1936,8 @@ static int ath_tx_start_dma(struct ath_softc *sc,
 
 	bf->bf_flags = txctl->flags;
 	bf->bf_keytype = txctl->keytype;
-	tx_info_priv = (struct ath_tx_info_priv *)tx_info->driver_data[0];
+	/* XXX: HACK! */
+	tx_info_priv = (struct ath_tx_info_priv *)tx_info->control.vif;
 	rcs = tx_info_priv->rcs;
 	bf->bf_rcs[0] = rcs[0];
 	bf->bf_rcs[1] = rcs[1];
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c
index 098f886976f6..6d65a02b7052 100644
--- a/drivers/net/wireless/b43/dma.c
+++ b/drivers/net/wireless/b43/dma.c
@@ -1387,13 +1387,11 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
 
 			info = IEEE80211_SKB_CB(meta->skb);
 
-			memset(&info->status, 0, sizeof(info->status));
-
 			/*
 			 * Call back to inform the ieee80211 subsystem about
 			 * the status of the transmission.
 			 */
-			frame_succeed = b43_fill_txstatus_report(info, status);
+			frame_succeed = b43_fill_txstatus_report(dev, info, status);
 #ifdef CONFIG_B43_DEBUG
 			if (frame_succeed)
 				ring->nr_succeed_tx_packets++;
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 9aeeb6553a91..2a599fb772d9 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4555,7 +4555,7 @@ static int b43_wireless_init(struct ssb_device *dev)
 		BIT(NL80211_IFTYPE_ADHOC);
 
 	hw->queues = b43_modparam_qos ? 4 : 1;
-	hw->max_altrates = 1;
+	hw->max_rates = 2;
 	SET_IEEE80211_DEV(hw, dev->dev);
 	if (is_valid_ether_addr(sprom->et1mac))
 		SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
diff --git a/drivers/net/wireless/b43/pio.c b/drivers/net/wireless/b43/pio.c
index 401591267592..1036bef8c4cc 100644
--- a/drivers/net/wireless/b43/pio.c
+++ b/drivers/net/wireless/b43/pio.c
@@ -587,9 +587,8 @@ void b43_pio_handle_txstatus(struct b43_wldev *dev,
 	spin_lock(&q->lock); /* IRQs are already disabled. */
 
 	info = IEEE80211_SKB_CB(pack->skb);
-	memset(&info->status, 0, sizeof(info->status));
 
-	b43_fill_txstatus_report(info, status);
+	b43_fill_txstatus_report(dev, info, status);
 
 	total_len = pack->skb->len + b43_txhdr_size(dev);
 	total_len = roundup(total_len, 4);
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index 2fabcf8f0474..adba89b816d4 100644
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -185,7 +185,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
 		       u8 *_txhdr,
 		       const unsigned char *fragment_data,
 		       unsigned int fragment_len,
-		       const struct ieee80211_tx_info *info,
+		       struct ieee80211_tx_info *info,
 		       u16 cookie)
 {
 	struct b43_txhdr *txhdr = (struct b43_txhdr *)_txhdr;
@@ -202,6 +202,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
 	u16 phy_ctl = 0;
 	u8 extra_ft = 0;
 	struct ieee80211_rate *txrate;
+	struct ieee80211_tx_rate *rates;
 
 	memset(txhdr, 0, sizeof(*txhdr));
 
@@ -291,7 +292,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
 		phy_ctl |= B43_TXH_PHY_ENC_OFDM;
 	else
 		phy_ctl |= B43_TXH_PHY_ENC_CCK;
-	if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE)
+	if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
 		phy_ctl |= B43_TXH_PHY_SHORTPRMBL;
 
 	switch (b43_ieee80211_antenna_sanitize(dev, info->antenna_sel_tx)) {
@@ -314,6 +315,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
 		B43_WARN_ON(1);
 	}
 
+	rates = info->control.rates;
 	/* MAC control */
 	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
 		mac_ctl |= B43_TXH_MAC_ACK;
@@ -324,12 +326,22 @@ int b43_generate_txhdr(struct b43_wldev *dev,
 		mac_ctl |= B43_TXH_MAC_STMSDU;
 	if (phy->type == B43_PHYTYPE_A)
 		mac_ctl |= B43_TXH_MAC_5GHZ;
-	if (info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT)
+
+	/* Overwrite rates[0].count to make the retry calculation
+	 * in the tx status easier. need the actual retry limit to
+	 * detect whether the fallback rate was used.
+	 */
+	if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
+	    (rates[0].count <= dev->wl->hw->conf.long_frame_max_tx_count)) {
+		rates[0].count = dev->wl->hw->conf.long_frame_max_tx_count;
 		mac_ctl |= B43_TXH_MAC_LONGFRAME;
+	} else {
+		rates[0].count = dev->wl->hw->conf.short_frame_max_tx_count;
+	}
 
 	/* Generate the RTS or CTS-to-self frame */
-	if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ||
-	    (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) {
+	if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
+	    (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) {
 		unsigned int len;
 		struct ieee80211_hdr *hdr;
 		int rts_rate, rts_rate_fb;
@@ -344,7 +356,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
 		rts_rate_fb = b43_calc_fallback_rate(rts_rate);
 		rts_rate_fb_ofdm = b43_is_ofdm_rate(rts_rate_fb);
 
-		if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
+		if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 			struct ieee80211_cts *cts;
 
 			if (b43_is_old_txhdr_format(dev)) {
@@ -687,10 +699,18 @@ void b43_handle_txstatus(struct b43_wldev *dev,
 /* Fill out the mac80211 TXstatus report based on the b43-specific
  * txstatus report data. This returns a boolean whether the frame was
  * successfully transmitted. */
-bool b43_fill_txstatus_report(struct ieee80211_tx_info *report,
+bool b43_fill_txstatus_report(struct b43_wldev *dev,
+			      struct ieee80211_tx_info *report,
 			      const struct b43_txstatus *status)
 {
 	bool frame_success = 1;
+	int retry_limit;
+
+	/* preserve the confiured retry limit before clearing the status
+	 * The xmit function has overwritten the rc's value with the actual
+	 * retry limit done by the hardware */
+	retry_limit = report->status.rates[0].count;
+	ieee80211_tx_info_clear_status(report);
 
 	if (status->acked) {
 		/* The frame was ACKed. */
@@ -700,14 +720,32 @@ bool b43_fill_txstatus_report(struct ieee80211_tx_info *report,
 		if (!(report->flags & IEEE80211_TX_CTL_NO_ACK)) {
 			/* ...but we expected an ACK. */
 			frame_success = 0;
-			report->status.excessive_retries = 1;
 		}
 	}
 	if (status->frame_count == 0) {
 		/* The frame was not transmitted at all. */
-		report->status.retry_count = 0;
-	} else
-		report->status.retry_count = status->frame_count - 1;
+		report->status.rates[0].count = 0;
+	} else if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) {
+		/*
+		 * If the short retries (RTS, not data frame) have exceeded
+		 * the limit, the hw will not have tried the selected rate,
+		 * but will have used the fallback rate instead.
+		 * Don't let the rate control count attempts for the selected
+		 * rate in this case, otherwise the statistics will be off.
+		 */
+		report->status.rates[0].count = 0;
+		report->status.rates[1].count = status->frame_count;
+	} else {
+		if (status->frame_count > retry_limit) {
+			report->status.rates[0].count = retry_limit;
+			report->status.rates[1].count = status->frame_count -
+					retry_limit;
+
+		} else {
+			report->status.rates[0].count = status->frame_count;
+			report->status.rates[1].idx = -1;
+		}
+	}
 
 	return frame_success;
 }
diff --git a/drivers/net/wireless/b43/xmit.h b/drivers/net/wireless/b43/xmit.h
index 0215faf47541..4fb2a190f7a7 100644
--- a/drivers/net/wireless/b43/xmit.h
+++ b/drivers/net/wireless/b43/xmit.h
@@ -178,7 +178,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
 		       u8 * txhdr,
 		       const unsigned char *fragment_data,
 		       unsigned int fragment_len,
-		       const struct ieee80211_tx_info *txctl, u16 cookie);
+		       struct ieee80211_tx_info *txctl, u16 cookie);
 
 /* Transmit Status */
 struct b43_txstatus {
@@ -294,7 +294,8 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr);
 
 void b43_handle_txstatus(struct b43_wldev *dev,
 			 const struct b43_txstatus *status);
-bool b43_fill_txstatus_report(struct ieee80211_tx_info *report,
+bool b43_fill_txstatus_report(struct b43_wldev *dev,
+			      struct ieee80211_tx_info *report,
 			      const struct b43_txstatus *status);
 
 void b43_tx_suspend(struct b43_wldev *dev);
diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c
index fb6819e40f38..308c2647f002 100644
--- a/drivers/net/wireless/b43legacy/dma.c
+++ b/drivers/net/wireless/b43legacy/dma.c
@@ -1411,6 +1411,7 @@ void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev,
 	struct b43legacy_dmaring *ring;
 	struct b43legacy_dmadesc_generic *desc;
 	struct b43legacy_dmadesc_meta *meta;
+	int retry_limit;
 	int slot;
 
 	ring = parse_cookie(dev, status->cookie, &slot);
@@ -1437,25 +1438,42 @@ void b43legacy_dma_handle_txstatus(struct b43legacy_wldev *dev,
 			struct ieee80211_tx_info *info;
 			BUG_ON(!meta->skb);
 			info = IEEE80211_SKB_CB(meta->skb);
-			/* Call back to inform the ieee80211 subsystem about the
-			 * status of the transmission.
-			 * Some fields of txstat are already filled in dma_tx().
-			 */
 
-			memset(&info->status, 0, sizeof(info->status));
+			/* preserve the confiured retry limit before clearing the status
+			 * The xmit function has overwritten the rc's value with the actual
+			 * retry limit done by the hardware */
+			retry_limit = info->status.rates[0].count;
+			ieee80211_tx_info_clear_status(info);
 
-			if (status->acked) {
+			if (status->acked)
 				info->flags |= IEEE80211_TX_STAT_ACK;
+
+			if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) {
+				/*
+				 * If the short retries (RTS, not data frame) have exceeded
+				 * the limit, the hw will not have tried the selected rate,
+				 * but will have used the fallback rate instead.
+				 * Don't let the rate control count attempts for the selected
+				 * rate in this case, otherwise the statistics will be off.
+				 */
+				info->status.rates[0].count = 0;
+				info->status.rates[1].count = status->frame_count;
 			} else {
-				if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
-					 info->status.excessive_retries = 1;
+				if (status->frame_count > retry_limit) {
+					info->status.rates[0].count = retry_limit;
+					info->status.rates[1].count = status->frame_count -
+							retry_limit;
+
+				} else {
+					info->status.rates[0].count = status->frame_count;
+					info->status.rates[1].idx = -1;
+				}
 			}
-			if (status->frame_count == 0) {
-				/* The frame was not transmitted at all. */
-				info->status.retry_count = 0;
-			} else
-				info->status.retry_count = status->frame_count
-							   - 1;
+
+			/* Call back to inform the ieee80211 subsystem about the
+			 * status of the transmission.
+			 * Some fields of txstat are already filled in dma_tx().
+			 */
 			ieee80211_tx_status_irqsafe(dev->wl->hw, meta->skb);
 			/* skb is freed by ieee80211_tx_status_irqsafe() */
 			meta->skb = NULL;
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 78e46365f69e..9edbdf9cb50f 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -3682,7 +3682,7 @@ static int b43legacy_wireless_init(struct ssb_device *dev)
 		BIT(NL80211_IFTYPE_WDS) |
 		BIT(NL80211_IFTYPE_ADHOC);
 	hw->queues = 1; /* FIXME: hardware has more queues */
-	hw->max_altrates = 1;
+	hw->max_rates = 2;
 	SET_IEEE80211_DEV(hw, dev->dev);
 	if (is_valid_ether_addr(sprom->et1mac))
 		SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
diff --git a/drivers/net/wireless/b43legacy/pio.c b/drivers/net/wireless/b43legacy/pio.c
index a86c7647fa2d..746d5361bba0 100644
--- a/drivers/net/wireless/b43legacy/pio.c
+++ b/drivers/net/wireless/b43legacy/pio.c
@@ -491,6 +491,7 @@ void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev,
 	struct b43legacy_pioqueue *queue;
 	struct b43legacy_pio_txpacket *packet;
 	struct ieee80211_tx_info *info;
+	int retry_limit;
 
 	queue = parse_cookie(dev, status->cookie, &packet);
 	B43legacy_WARN_ON(!queue);
@@ -503,11 +504,37 @@ void b43legacy_pio_handle_txstatus(struct b43legacy_wldev *dev,
 				sizeof(struct b43legacy_txhdr_fw3));
 
 	info = IEEE80211_SKB_CB(packet->skb);
-	memset(&info->status, 0, sizeof(info->status));
+
+	/* preserve the confiured retry limit before clearing the status
+	 * The xmit function has overwritten the rc's value with the actual
+	 * retry limit done by the hardware */
+	retry_limit = info->status.rates[0].count;
+	ieee80211_tx_info_clear_status(info);
 
 	if (status->acked)
 		info->flags |= IEEE80211_TX_STAT_ACK;
-	info->status.retry_count = status->frame_count - 1;
+
+	if (status->rts_count > dev->wl->hw->conf.short_frame_max_tx_count) {
+		/*
+		 * If the short retries (RTS, not data frame) have exceeded
+		 * the limit, the hw will not have tried the selected rate,
+		 * but will have used the fallback rate instead.
+		 * Don't let the rate control count attempts for the selected
+		 * rate in this case, otherwise the statistics will be off.
+		 */
+		info->status.rates[0].count = 0;
+		info->status.rates[1].count = status->frame_count;
+	} else {
+		if (status->frame_count > retry_limit) {
+			info->status.rates[0].count = retry_limit;
+			info->status.rates[1].count = status->frame_count -
+					retry_limit;
+
+		} else {
+			info->status.rates[0].count = status->frame_count;
+			info->status.rates[1].idx = -1;
+		}
+	}
 	ieee80211_tx_status_irqsafe(dev->wl->hw, packet->skb);
 	packet->skb = NULL;
 
diff --git a/drivers/net/wireless/b43legacy/xmit.c b/drivers/net/wireless/b43legacy/xmit.c
index 65e833781608..12fca99f7578 100644
--- a/drivers/net/wireless/b43legacy/xmit.c
+++ b/drivers/net/wireless/b43legacy/xmit.c
@@ -188,7 +188,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 			       struct b43legacy_txhdr_fw3 *txhdr,
 			       const unsigned char *fragment_data,
 			       unsigned int fragment_len,
-			       const struct ieee80211_tx_info *info,
+			       struct ieee80211_tx_info *info,
 			       u16 cookie)
 {
 	const struct ieee80211_hdr *wlhdr;
@@ -201,6 +201,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 	u32 mac_ctl = 0;
 	u16 phy_ctl = 0;
 	struct ieee80211_rate *tx_rate;
+	struct ieee80211_tx_rate *rates;
 
 	wlhdr = (const struct ieee80211_hdr *)fragment_data;
 
@@ -274,7 +275,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 	/* PHY TX Control word */
 	if (rate_ofdm)
 		phy_ctl |= B43legacy_TX4_PHY_OFDM;
-	if (dev->short_preamble)
+	if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
 		phy_ctl |= B43legacy_TX4_PHY_SHORTPRMBL;
 	switch (info->antenna_sel_tx) {
 	case 0:
@@ -291,6 +292,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 	}
 
 	/* MAC control */
+	rates = info->control.rates;
 	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
 		mac_ctl |= B43legacy_TX4_MAC_ACK;
 	if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)
@@ -299,12 +301,22 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 		mac_ctl |= B43legacy_TX4_MAC_STMSDU;
 	if (rate_fb_ofdm)
 		mac_ctl |= B43legacy_TX4_MAC_FALLBACKOFDM;
-	if (info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT)
+
+	/* Overwrite rates[0].count to make the retry calculation
+	 * in the tx status easier. need the actual retry limit to
+	 * detect whether the fallback rate was used.
+	 */
+	if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
+	    (rates[0].count <= dev->wl->hw->conf.long_frame_max_tx_count)) {
+		rates[0].count = dev->wl->hw->conf.long_frame_max_tx_count;
 		mac_ctl |= B43legacy_TX4_MAC_LONGFRAME;
+	} else {
+		rates[0].count = dev->wl->hw->conf.short_frame_max_tx_count;
+	}
 
 	/* Generate the RTS or CTS-to-self frame */
-	if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ||
-	    (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) {
+	if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
+	    (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) {
 		unsigned int len;
 		struct ieee80211_hdr *hdr;
 		int rts_rate;
@@ -319,7 +331,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 		if (rts_rate_fb_ofdm)
 			mac_ctl |= B43legacy_TX4_MAC_CTSFALLBACKOFDM;
 
-		if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
+		if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 			ieee80211_ctstoself_get(dev->wl->hw,
 						info->control.vif,
 						fragment_data,
@@ -362,7 +374,7 @@ int b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
 			      u8 *txhdr,
 			      const unsigned char *fragment_data,
 			      unsigned int fragment_len,
-			      const struct ieee80211_tx_info *info,
+			      struct ieee80211_tx_info *info,
 			      u16 cookie)
 {
 	return generate_txhdr_fw3(dev, (struct b43legacy_txhdr_fw3 *)txhdr,
diff --git a/drivers/net/wireless/b43legacy/xmit.h b/drivers/net/wireless/b43legacy/xmit.h
index e56777e0feab..62e09d02788f 100644
--- a/drivers/net/wireless/b43legacy/xmit.h
+++ b/drivers/net/wireless/b43legacy/xmit.h
@@ -80,7 +80,7 @@ int b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
 			      u8 *txhdr,
 			      const unsigned char *fragment_data,
 			      unsigned int fragment_len,
-			      const struct ieee80211_tx_info *info,
+			      struct ieee80211_tx_info *info,
 			      u16 cookie);
 
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index c25daec4f93d..f440ed0fe543 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -422,34 +422,6 @@ static void rs_free_sta(void *priv, struct ieee80211_sta *sta,
 }
 
 
-/*
- * get ieee prev rate from rate scale table.
- * for A and B mode we need to overright prev
- * value
- */
-static int rs_adjust_next_rate(struct iwl3945_priv *priv, int rate)
-{
-	int next_rate = iwl3945_get_prev_ieee_rate(rate);
-
-	switch (priv->band) {
-	case IEEE80211_BAND_5GHZ:
-		if (rate == IWL_RATE_12M_INDEX)
-			next_rate = IWL_RATE_9M_INDEX;
-		else if (rate == IWL_RATE_6M_INDEX)
-			next_rate = IWL_RATE_6M_INDEX;
-		break;
-/* XXX cannot be invoked in current mac80211 so not a regression
-	case MODE_IEEE80211B:
-		if (rate == IWL_RATE_11M_INDEX_TABLE)
-			next_rate = IWL_RATE_5M_INDEX_TABLE;
-		break;
- */
-	default:
-		break;
-	}
-
-	return next_rate;
-}
 /**
  * rs_tx_status - Update rate control values based on Tx results
  *
@@ -460,17 +432,21 @@ 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;
+	u8 retries = 0, current_count;
 	int scale_rate_index, first_index, last_index;
 	unsigned long flags;
 	struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_rate;
 	struct iwl3945_rs_sta *rs_sta = priv_sta;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	int i;
 
 	IWL_DEBUG_RATE("enter\n");
 
-	retries = info->status.retry_count;
-	first_index = sband->bitrates[info->tx_rate_idx].hw_value;
+	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++)
+		retries += info->status.rates[i].count;
+	retries--;
+
+	first_index = sband->bitrates[info->status.rates[0].idx].hw_value;
 	if ((first_index < 0) || (first_index >= IWL_RATE_COUNT)) {
 		IWL_DEBUG_RATE("leave: Rate out of bounds: %d\n", first_index);
 		return;
@@ -502,7 +478,7 @@ static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband
 			last_index = scale_rate_index;
 		} else {
 			current_count = priv->retry_rate;
-			last_index = rs_adjust_next_rate(priv,
+			last_index = iwl3945_rs_next_rate(priv,
 							 scale_rate_index);
 		}
 
@@ -518,7 +494,7 @@ static void rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband
 
 		if (retries)
 			scale_rate_index =
-			    rs_adjust_next_rate(priv, scale_rate_index);
+			    iwl3945_rs_next_rate(priv, scale_rate_index);
 	}
 
 
@@ -630,10 +606,11 @@ 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_r, struct ieee80211_supported_band *sband,
-			struct ieee80211_sta *sta, void *priv_sta,
-			struct sk_buff *skb, struct rate_selection *sel)
+static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
+			void *priv_sta,	struct ieee80211_tx_rate_control *txrc)
 {
+	struct ieee80211_supported_band *sband = txrc->sband;
+	struct sk_buff *skb = txrc->skb;
 	u8 low = IWL_RATE_INVALID;
 	u8 high = IWL_RATE_INVALID;
 	u16 high_low;
@@ -649,6 +626,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband,
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	u16 fc, rate_mask;
 	struct iwl3945_priv *priv = (struct iwl3945_priv *)priv_r;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
 	IWL_DEBUG_RATE("enter\n");
 
@@ -659,7 +637,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband,
 	    is_multicast_ether_addr(hdr->addr1) ||
 	    !sta || !priv_sta) {
 		IWL_DEBUG_RATE("leave: No STA priv data to update!\n");
-		sel->rate_idx = rate_lowest_index(sband, sta);
+		info->control.rates[0].idx = rate_lowest_index(sband, sta);
 		return;
 	}
 
@@ -792,9 +770,10 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband,
 
 	rs_sta->last_txrate_idx = index;
 	if (sband->band == IEEE80211_BAND_5GHZ)
-		sel->rate_idx = rs_sta->last_txrate_idx - IWL_FIRST_OFDM_RATE;
+		info->control.rates[0].idx = rs_sta->last_txrate_idx -
+				IWL_FIRST_OFDM_RATE;
 	else
-		sel->rate_idx = rs_sta->last_txrate_idx;
+		info->control.rates[0].idx = rs_sta->last_txrate_idx;
 
 	IWL_DEBUG_RATE("leave: %d\n", index);
 }
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 8a00245be51e..7afafb629706 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -261,6 +261,35 @@ static inline const char *iwl3945_get_tx_fail_reason(u32 status)
 }
 #endif
 
+/*
+ * get ieee prev rate from rate scale table.
+ * for A and B mode we need to overright prev
+ * value
+ */
+int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate)
+{
+	int next_rate = iwl3945_get_prev_ieee_rate(rate);
+
+	switch (priv->band) {
+	case IEEE80211_BAND_5GHZ:
+		if (rate == IWL_RATE_12M_INDEX)
+			next_rate = IWL_RATE_9M_INDEX;
+		else if (rate == IWL_RATE_6M_INDEX)
+			next_rate = IWL_RATE_6M_INDEX;
+		break;
+/* XXX cannot be invoked in current mac80211 so not a regression
+	case MODE_IEEE80211B:
+		if (rate == IWL_RATE_11M_INDEX_TABLE)
+			next_rate = IWL_RATE_5M_INDEX_TABLE;
+		break;
+ */
+	default:
+		break;
+	}
+
+	return next_rate;
+}
+
 
 /**
  * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
@@ -308,6 +337,7 @@ static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv,
 	struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
 	u32  status = le32_to_cpu(tx_resp->status);
 	int rate_idx;
+	int fail, i;
 
 	if ((index >= txq->q.n_bd) || (iwl3945_x2_queue_used(&txq->q, index) == 0)) {
 		IWL_ERROR("Read index for DMA queue txq_id (%d) index %d "
@@ -318,9 +348,36 @@ static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv,
 	}
 
 	info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]);
-	memset(&info->status, 0, sizeof(info->status));
+	ieee80211_tx_info_clear_status(info);
+
+	/* Fill the MRR chain with some info about on-chip retransmissions */
+	rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate);
+	if (info->band == IEEE80211_BAND_5GHZ)
+		rate_idx -= IWL_FIRST_OFDM_RATE;
+
+	fail = tx_resp->failure_frame;
+	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
+		int next = iwl3945_rs_next_rate(priv, rate_idx);
+
+		info->status.rates[i].idx = rate_idx;
+
+		/*
+		 * Put remaining into the last count as best approximation
+		 * of saying exactly what the hardware would have done...
+		 */
+		if ((rate_idx == next) || (i == IEEE80211_TX_MAX_RATES - 1)) {
+			info->status.rates[i].count = fail;
+			break;
+		}
+
+		info->status.rates[i].count = priv->retry_rate;
+		fail -= priv->retry_rate;
+		rate_idx = next;
+		if (fail <= 0)
+			break;
+	}
+	info->status.rates[i].count++; /* add final attempt */
 
-	info->status.retry_count = tx_resp->failure_frame;
 	/* tx_status->rts_retry_count = tx_resp->failure_rts; */
 	info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ?
 				IEEE80211_TX_STAT_ACK : 0;
@@ -329,10 +386,6 @@ static void iwl3945_rx_reply_tx(struct iwl3945_priv *priv,
 			txq_id, iwl3945_get_tx_fail_reason(status), status,
 			tx_resp->rate, tx_resp->failure_frame);
 
-	rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate);
-	if (info->band == IEEE80211_BAND_5GHZ)
-		rate_idx -= IWL_FIRST_OFDM_RATE;
-	info->tx_rate_idx = rate_idx;
 	IWL_DEBUG_TX_REPLY("Tx queue reclaim %d\n", index);
 	iwl3945_tx_queue_reclaim(priv, txq_id, index);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index bdd32475b99c..592c5958723b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -954,6 +954,8 @@ static inline int is_channel_ibss(const struct iwl3945_channel_info *ch)
 extern const struct iwl3945_channel_info *iwl3945_get_channel_info(
 	const struct iwl3945_priv *priv, enum ieee80211_band band, u16 channel);
 
+extern int iwl3945_rs_next_rate(struct iwl3945_priv *priv, int rate);
+
 /* Requires full declaration of iwl3945_priv before including */
 #include "iwl-3945-io.h"
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 9838de5f4369..222c2baa95ca 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -619,10 +619,10 @@ static void iwl4965_gain_computation(struct iwl_priv *priv,
 static void iwl4965_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
 			__le32 *tx_flags)
 {
-	if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
+	if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
 		*tx_flags |= TX_CMD_FLG_RTS_MSK;
 		*tx_flags &= ~TX_CMD_FLG_CTS_MSK;
-	} else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
+	} else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 		*tx_flags &= ~TX_CMD_FLG_RTS_MSK;
 		*tx_flags |= TX_CMD_FLG_CTS_MSK;
 	}
@@ -2070,7 +2070,7 @@ static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv,
 				   agg->frame_count, agg->start_idx, idx);
 
 		info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]);
-		info->status.retry_count = tx_resp->failure_frame;
+		info->status.rates[0].count = tx_resp->failure_frame + 1;
 		info->flags &= ~IEEE80211_TX_CTL_AMPDU;
 		info->flags |= iwl_is_tx_success(status)?
 			IEEE80211_TX_STAT_ACK : 0;
@@ -2227,7 +2227,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
 			iwl_txq_check_empty(priv, sta_id, tid, txq_id);
 		}
 	} else {
-		info->status.retry_count = tx_resp->failure_frame;
+		info->status.rates[0].count = tx_resp->failure_frame + 1;
 		info->flags |=
 			iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0;
 		iwl_hwrate_to_tx_control(priv,
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 56a3f0c84a1e..d5282fa65084 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -390,8 +390,8 @@ static void iwl5000_chain_noise_reset(struct iwl_priv *priv)
 static void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
 			__le32 *tx_flags)
 {
-	if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ||
-	    (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT))
+	if ((info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
+	    (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT))
 		*tx_flags |= TX_CMD_FLG_RTS_CTS_MSK;
 	else
 		*tx_flags &= ~TX_CMD_FLG_RTS_CTS_MSK;
@@ -1154,7 +1154,7 @@ static int iwl5000_tx_status_reply_tx(struct iwl_priv *priv,
 				   agg->frame_count, agg->start_idx, idx);
 
 		info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]);
-		info->status.retry_count = tx_resp->failure_frame;
+		info->status.rates[0].count = tx_resp->failure_frame + 1;
 		info->flags &= ~IEEE80211_TX_CTL_AMPDU;
 		info->flags |= iwl_is_tx_success(status)?
 			IEEE80211_TX_STAT_ACK : 0;
@@ -1307,7 +1307,7 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
 			iwl_txq_check_empty(priv, sta_id, tid, txq_id);
 		}
 	} else {
-		info->status.retry_count = tx_resp->failure_frame;
+		info->status.rates[0].count = tx_resp->failure_frame + 1;
 		info->flags =
 			iwl_is_tx_success(status) ? IEEE80211_TX_STAT_ACK : 0;
 		iwl_hwrate_to_tx_control(priv,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index e10e0ca09ce9..f685e5d6c281 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -798,7 +798,7 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 	    !(info->flags & IEEE80211_TX_STAT_AMPDU))
 		return;
 
-	retries = info->status.retry_count;
+	retries = info->status.rates[0].count - 1;
 
 	if (retries > 15)
 		retries = 15;
@@ -830,20 +830,15 @@ static void rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
 	if (priv->band == IEEE80211_BAND_5GHZ)
 		rs_index -= IWL_FIRST_OFDM_RATE;
 
-	if ((info->tx_rate_idx < 0) ||
-	    (tbl_type.is_SGI ^
-		!!(info->flags & IEEE80211_TX_CTL_SHORT_GI)) ||
-	    (tbl_type.is_fat ^
-		!!(info->flags & IEEE80211_TX_CTL_40_MHZ_WIDTH)) ||
-	    (tbl_type.is_dup ^
-		!!(info->flags & IEEE80211_TX_CTL_DUP_DATA)) ||
-	    (tbl_type.ant_type ^ info->antenna_sel_tx) ||
-	    (!!(tx_rate & RATE_MCS_HT_MSK) ^
-		!!(info->flags & IEEE80211_TX_CTL_OFDM_HT)) ||
-	    (!!(tx_rate & RATE_MCS_GF_MSK) ^
-		!!(info->flags & IEEE80211_TX_CTL_GREEN_FIELD)) ||
+	if ((info->status.rates[0].idx < 0) ||
+	    (tbl_type.is_SGI != !!(info->status.rates[0].flags & IEEE80211_TX_RC_SHORT_GI)) ||
+	    (tbl_type.is_fat != !!(info->status.rates[0].flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) ||
+	    (tbl_type.is_dup != !!(info->status.rates[0].flags & IEEE80211_TX_RC_DUP_DATA)) ||
+	    (tbl_type.ant_type != info->antenna_sel_tx) ||
+	    (!!(tx_rate & RATE_MCS_HT_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_MCS)) ||
+	    (!!(tx_rate & RATE_MCS_GF_MSK) != !!(info->status.rates[0].flags & IEEE80211_TX_RC_GREEN_FIELD)) ||
 	    (hw->wiphy->bands[priv->band]->bitrates[rs_index].bitrate !=
-	     hw->wiphy->bands[info->band]->bitrates[info->tx_rate_idx].bitrate)) {
+	     hw->wiphy->bands[info->band]->bitrates[info->status.rates[0].idx].bitrate)) {
 		IWL_DEBUG_RATE("initial rate does not match 0x%x\n", tx_rate);
 		goto out;
 	}
@@ -2098,15 +2093,17 @@ static void rs_initialize_lq(struct iwl_priv *priv,
 	return;
 }
 
-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)
+static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
+			struct ieee80211_tx_rate_control *txrc)
 {
 
 	int i;
+	struct sk_buff *skb = txrc->skb;
+	struct ieee80211_supported_band *sband = txrc->sband;
 	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 ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	__le16 fc;
 	struct iwl_lq_sta *lq_sta;
 
@@ -2117,7 +2114,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband,
 	fc = hdr->frame_control;
 	if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1) ||
 	    !sta || !priv_sta) {
-		sel->rate_idx = rate_lowest_index(sband, sta);
+		info->control.rates[0].idx = rate_lowest_index(sband, sta);
 		return;
 	}
 
@@ -2143,13 +2140,13 @@ static void rs_get_rate(void *priv_r, struct ieee80211_supported_band *sband,
 	}
 
 	if ((i < 0) || (i > IWL_RATE_COUNT)) {
-		sel->rate_idx = rate_lowest_index(sband, sta);
+		info->control.rates[0].idx = rate_lowest_index(sband, sta);
 		return;
 	}
 
 	if (sband->band == IEEE80211_BAND_5GHZ)
 		i -= IWL_FIRST_OFDM_RATE;
-	sel->rate_idx = i;
+	info->control.rates[0].idx = i;
 }
 
 static void *rs_alloc_sta(void *priv_rate, struct ieee80211_sta *sta,
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 10f5a0a233fe..2c4162e48140 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -88,26 +88,27 @@ EXPORT_SYMBOL(iwl_rates);
  * translate ucode response to mac80211 tx status control values
  */
 void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
-				  struct ieee80211_tx_info *control)
+				  struct ieee80211_tx_info *info)
 {
 	int rate_index;
+	struct ieee80211_tx_rate *r = &info->control.rates[0];
 
-	control->antenna_sel_tx =
+	info->antenna_sel_tx =
 		((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
 	if (rate_n_flags & RATE_MCS_HT_MSK)
-		control->flags |= IEEE80211_TX_CTL_OFDM_HT;
+		r->flags |= IEEE80211_TX_RC_MCS;
 	if (rate_n_flags & RATE_MCS_GF_MSK)
-		control->flags |= IEEE80211_TX_CTL_GREEN_FIELD;
+		r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
 	if (rate_n_flags & RATE_MCS_FAT_MSK)
-		control->flags |= IEEE80211_TX_CTL_40_MHZ_WIDTH;
+		r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
 	if (rate_n_flags & RATE_MCS_DUP_MSK)
-		control->flags |= IEEE80211_TX_CTL_DUP_DATA;
+		r->flags |= IEEE80211_TX_RC_DUP_DATA;
 	if (rate_n_flags & RATE_MCS_SGI_MSK)
-		control->flags |= IEEE80211_TX_CTL_SHORT_GI;
+		r->flags |= IEEE80211_TX_RC_SHORT_GI;
 	rate_index = iwl_hwrate_to_plcp_idx(rate_n_flags);
-	if (control->band == IEEE80211_BAND_5GHZ)
+	if (info->band == IEEE80211_BAND_5GHZ)
 		rate_index -= IWL_FIRST_OFDM_RATE;
-	control->tx_rate_idx = rate_index;
+	r->idx = rate_index;
 }
 EXPORT_SYMBOL(iwl_hwrate_to_tx_control);
 
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index b1464c71ea0a..2cd33b4e9e13 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -2395,6 +2395,7 @@ static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv,
 {
 	__le16 fc = hdr->frame_control;
 	__le32 tx_flags = cmd->cmd.tx.tx_flags;
+	u8 rc_flags = info->control.rates[0].flags;
 
 	cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
 	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
@@ -2421,10 +2422,10 @@ static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv,
 		tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
 	}
 
-	if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
+	if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
 		tx_flags |= TX_CMD_FLG_RTS_MSK;
 		tx_flags &= ~TX_CMD_FLG_CTS_MSK;
-	} else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
+	} else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 		tx_flags &= ~TX_CMD_FLG_RTS_MSK;
 		tx_flags |= TX_CMD_FLG_CTS_MSK;
 	}
diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c
index 241ddcfa352e..d1fc305de5fe 100644
--- a/drivers/net/wireless/libertas_tf/main.c
+++ b/drivers/net/wireless/libertas_tf/main.c
@@ -592,14 +592,14 @@ EXPORT_SYMBOL_GPL(lbtf_remove_card);
 void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail)
 {
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb);
-	memset(&info->status, 0, sizeof(info->status));
+
+	ieee80211_tx_info_clear_status(info);
 	/*
 	 * Commented out, otherwise we never go beyond 1Mbit/s using mac80211
 	 * default pid rc algorithm.
 	 *
 	 * info->status.retry_count = MRVL_DEFAULT_RETRIES - retrycnt;
 	 */
-	info->status.excessive_retries = fail ? 1 : 0;
 	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && !fail)
 		info->flags |= IEEE80211_TX_STAT_ACK;
 	skb_pull(priv->tx_skb, sizeof(struct txpd));
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index e2aeef8de707..c57652325286 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -209,7 +209,7 @@ static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
 	/* TODO: set mactime */
 	rx_status.freq = data->channel->center_freq;
 	rx_status.band = data->channel->band;
-	rx_status.rate_idx = info->tx_rate_idx;
+	rx_status.rate_idx = info->control.rates[0].idx;
 	/* TODO: simulate signal strength (and optional packet drop) */
 
 	/* Copy skb to all enabled radios that are on the current frequency */
@@ -269,13 +269,9 @@ static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	if (txi->control.sta)
 		hwsim_check_sta_magic(txi->control.sta);
 
-	memset(&txi->status, 0, sizeof(txi->status));
-	if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) {
-		if (ack)
-			txi->flags |= IEEE80211_TX_STAT_ACK;
-		else
-			txi->status.excessive_retries = 1;
-	}
+	ieee80211_tx_info_clear_status(txi);
+	if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
+		txi->flags |= IEEE80211_TX_STAT_ACK;
 	ieee80211_tx_status_irqsafe(hw, skb);
 	return NETDEV_TX_OK;
 }
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
index 81a9756254fb..65be5eca2340 100644
--- a/drivers/net/wireless/p54/p54common.c
+++ b/drivers/net/wireless/p54/p54common.c
@@ -548,7 +548,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
 	spin_lock_irqsave(&priv->tx_queue.lock, flags);
 	while (entry != (struct sk_buff *)&priv->tx_queue) {
 		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry);
-		range = (void *)info->driver_data;
+		range = (void *)info->rate_driver_data;
 		if (range->start_addr == addr) {
 			struct p54_control_hdr *entry_hdr;
 			struct p54_tx_control_allocdata *entry_data;
@@ -559,7 +559,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
 				struct memrecord *mr;
 
 				ni = IEEE80211_SKB_CB(entry->next);
-				mr = (struct memrecord *)ni->driver_data;
+				mr = (struct memrecord *)ni->rate_driver_data;
 				freed = mr->start_addr - last_addr;
 			} else
 				freed = priv->rx_end - last_addr;
@@ -568,7 +568,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
 			__skb_unlink(entry, &priv->tx_queue);
 			spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
 
-			memset(&info->status, 0, sizeof(info->status));
+			ieee80211_tx_info_clear_status(info);
 			entry_hdr = (struct p54_control_hdr *) entry->data;
 			entry_data = (struct p54_tx_control_allocdata *) entry_hdr->data;
 			if ((entry_hdr->magic1 & cpu_to_le16(0x4000)) != 0)
@@ -578,10 +578,8 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
 			if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
 				if (!(payload->status & 0x01))
 					info->flags |= IEEE80211_TX_STAT_ACK;
-				else
-					info->status.excessive_retries = 1;
 			}
-			info->status.retry_count = payload->retries - 1;
+			info->status.rates[0].count = payload->retries;
 			info->status.ack_signal = p54_rssi_to_dbm(dev,
 					le16_to_cpu(payload->ack_rssi));
 			skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data));
@@ -699,7 +697,7 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
 	while (left--) {
 		u32 hole_size;
 		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry);
-		struct memrecord *range = (void *)info->driver_data;
+		struct memrecord *range = (void *)info->rate_driver_data;
 		hole_size = range->start_addr - last_addr;
 		if (!target_skb && hole_size >= len) {
 			target_skb = entry->prev;
@@ -715,7 +713,7 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
 		largest_hole = max(largest_hole, priv->rx_end - last_addr - len);
 		if (!skb_queue_empty(&priv->tx_queue)) {
 			struct ieee80211_tx_info *info = IEEE80211_SKB_CB(target_skb);
-			struct memrecord *range = (void *)info->driver_data;
+			struct memrecord *range = (void *)info->rate_driver_data;
 			target_addr = range->end_addr;
 		}
 	} else
@@ -723,7 +721,7 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
 
 	if (skb) {
 		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-		struct memrecord *range = (void *)info->driver_data;
+		struct memrecord *range = (void *)info->rate_driver_data;
 		range->start_addr = target_addr;
 		range->end_addr = target_addr + len;
 		__skb_queue_after(&priv->tx_queue, target_skb, skb);
@@ -806,6 +804,7 @@ static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 	size_t padding, len;
 	u8 rate;
 	u8 cts_rate = 0x20;
+	u8 rc_flags;
 
 	current_queue = &priv->tx_stats[skb_get_queue_mapping(skb) + 4];
 	if (unlikely(current_queue->len > current_queue->limit))
@@ -828,18 +827,19 @@ static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 		hdr->magic1 = cpu_to_le16(0x0010);
 	hdr->len = cpu_to_le16(len);
 	hdr->type = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? 0 : cpu_to_le16(1);
-	hdr->retry1 = hdr->retry2 = info->control.retry_limit;
+	hdr->retry1 = hdr->retry2 = info->control.rates[0].count;
 
 	/* TODO: add support for alternate retry TX rates */
 	rate = ieee80211_get_tx_rate(dev, info)->hw_value;
-	if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) {
+	rc_flags = info->control.rates[0].flags;
+	if (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) {
 		rate |= 0x10;
 		cts_rate |= 0x10;
 	}
-	if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
+	if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
 		rate |= 0x40;
 		cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value;
-	} else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
+	} else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 		rate |= 0x20;
 		cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value;
 	}
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 697806cf94e2..e1feab8b6b02 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -498,7 +498,9 @@ void rt2x00lib_txdone(struct queue_entry *entry,
 {
 	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(entry->skb);
+	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
 	enum data_queue_qid qid = skb_get_queue_mapping(entry->skb);
+	u8 rate_idx, rate_flags;
 
 	/*
 	 * Unmap the skb.
@@ -528,14 +530,18 @@ void rt2x00lib_txdone(struct queue_entry *entry,
 	rt2x00dev->link.qual.tx_failed +=
 	    test_bit(TXDONE_FAILURE, &txdesc->flags);
 
+	rate_idx = skbdesc->tx_rate_idx;
+	rate_flags = skbdesc->tx_rate_flags;
+
 	/*
 	 * Initialize TX status
 	 */
 	memset(&tx_info->status, 0, sizeof(tx_info->status));
 	tx_info->status.ack_signal = 0;
-	tx_info->status.excessive_retries =
-	    test_bit(TXDONE_EXCESSIVE_RETRY, &txdesc->flags);
-	tx_info->status.retry_count = txdesc->retry;
+	tx_info->status.rates[0].idx = rate_idx;
+	tx_info->status.rates[0].flags = rate_flags;
+	tx_info->status.rates[0].count = txdesc->retry + 1;
+	tx_info->status.rates[1].idx = -1; /* terminate */
 
 	if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) {
 		if (test_bit(TXDONE_SUCCESS, &txdesc->flags))
@@ -544,7 +550,7 @@ void rt2x00lib_txdone(struct queue_entry *entry,
 			rt2x00dev->low_level_stats.dot11ACKFailureCount++;
 	}
 
-	if (tx_info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
+	if (rate_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
 		if (test_bit(TXDONE_SUCCESS, &txdesc->flags))
 			rt2x00dev->low_level_stats.dot11RTSSuccessCount++;
 		else if (test_bit(TXDONE_FAILURE, &txdesc->flags))
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index 931183369f07..b32d59eafaa3 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -39,7 +39,7 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev,
 	unsigned int data_length;
 	int retval = 0;
 
-	if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)
+	if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
 		data_length = sizeof(struct ieee80211_cts);
 	else
 		data_length = sizeof(struct ieee80211_rts);
@@ -64,11 +64,11 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev,
 	 */
 	memcpy(skb->cb, frag_skb->cb, sizeof(skb->cb));
 	rts_info = IEEE80211_SKB_CB(skb);
-	rts_info->flags &= ~IEEE80211_TX_CTL_USE_RTS_CTS;
-	rts_info->flags &= ~IEEE80211_TX_CTL_USE_CTS_PROTECT;
+	rts_info->control.rates[0].flags &= ~IEEE80211_TX_RC_USE_RTS_CTS;
+	rts_info->control.rates[0].flags &= ~IEEE80211_TX_RC_USE_CTS_PROTECT;
 	rts_info->flags &= ~IEEE80211_TX_CTL_REQ_TX_STATUS;
 
-	if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)
+	if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
 		rts_info->flags |= IEEE80211_TX_CTL_NO_ACK;
 	else
 		rts_info->flags &= ~IEEE80211_TX_CTL_NO_ACK;
@@ -84,7 +84,7 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev,
 		data_length += rt2x00crypto_tx_overhead(tx_info);
 #endif /* CONFIG_RT2X00_LIB_CRYPTO */
 
-	if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)
+	if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
 		ieee80211_ctstoself_get(rt2x00dev->hw, tx_info->control.vif,
 					frag_skb->data, data_length, tx_info,
 					(struct ieee80211_cts *)(skb->data));
@@ -146,8 +146,8 @@ int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	 * inside the hardware.
 	 */
 	frame_control = le16_to_cpu(ieee80211hdr->frame_control);
-	if ((tx_info->flags & (IEEE80211_TX_CTL_USE_RTS_CTS |
-			       IEEE80211_TX_CTL_USE_CTS_PROTECT)) &&
+	if ((tx_info->control.rates[0].flags & (IEEE80211_TX_RC_USE_RTS_CTS |
+						IEEE80211_TX_RC_USE_CTS_PROTECT)) &&
 	    !rt2x00dev->ops->hw->set_rts_threshold) {
 		if (rt2x00queue_available(queue) <= 1)
 			goto exit_fail;
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 451d410ecdae..070786ebd076 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -230,8 +230,15 @@ static void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
 	/*
 	 * Determine retry information.
 	 */
-	txdesc->retry_limit = tx_info->control.retry_limit;
-	if (tx_info->flags & IEEE80211_TX_CTL_LONG_RETRY_LIMIT)
+	txdesc->retry_limit = tx_info->control.rates[0].count - 1;
+	/*
+	 * XXX: If at this point we knew whether the HW is going to use
+	 *	the RETRY_MODE bit or the retry_limit (currently all
+	 *	use the RETRY_MODE bit) we could do something like b43
+	 *	does, set the RETRY_MODE bit when the RC algorithm is
+	 *	requesting more than the long retry limit.
+	 */
+	if (tx_info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
 		__set_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags);
 
 	/*
@@ -371,10 +378,12 @@ static void rt2x00queue_write_tx_descriptor(struct queue_entry *entry,
 
 int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb)
 {
+	struct ieee80211_tx_info *tx_info;
 	struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX);
 	struct txentry_desc txdesc;
 	struct skb_frame_desc *skbdesc;
 	unsigned int iv_len = 0;
+	u8 rate_idx, rate_flags;
 
 	if (unlikely(rt2x00queue_full(queue)))
 		return -EINVAL;
@@ -399,13 +408,18 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb)
 		iv_len = IEEE80211_SKB_CB(skb)->control.hw_key->iv_len;
 
 	/*
-	 * All information is retreived from the skb->cb array,
+	 * All information is retrieved from the skb->cb array,
 	 * now we should claim ownership of the driver part of that
-	 * array.
+	 * array, preserving the bitrate index and flags.
 	 */
+	tx_info = IEEE80211_SKB_CB(skb);
+	rate_idx = tx_info->control.rates[0].idx;
+	rate_flags = tx_info->control.rates[0].flags;
 	skbdesc = get_skb_frame_desc(entry->skb);
 	memset(skbdesc, 0, sizeof(*skbdesc));
 	skbdesc->entry = entry;
+	skbdesc->tx_rate_idx = rate_idx;
+	skbdesc->tx_rate_flags = rate_flags;
 
 	/*
 	 * When hardware encryption is supported, and this frame
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h
index 9dbf04f0f04c..4d3c7246f9ae 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.h
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.h
@@ -104,6 +104,8 @@ enum skb_frame_desc_flags {
  *
  * @flags: Frame flags, see &enum skb_frame_desc_flags.
  * @desc_len: Length of the frame descriptor.
+ * @tx_rate_idx: the index of the TX rate, used for TX status reporting
+ * @tx_rate_flags: the TX rate flags, used for TX status reporting
  * @desc: Pointer to descriptor part of the frame.
  *	Note that this pointer could point to something outside
  *	of the scope of the skb->data pointer.
@@ -113,9 +115,12 @@ enum skb_frame_desc_flags {
  * @entry: The entry to which this sk buffer belongs.
  */
 struct skb_frame_desc {
-	unsigned int flags;
+	u8 flags;
+
+	u8 desc_len;
+	u8 tx_rate_idx;
+	u8 tx_rate_flags;
 
-	unsigned int desc_len;
 	void *desc;
 
 	__le32 iv;
diff --git a/drivers/net/wireless/rtl8180_dev.c b/drivers/net/wireless/rtl8180_dev.c
index e8d22393797f..6c226c024dd9 100644
--- a/drivers/net/wireless/rtl8180_dev.c
+++ b/drivers/net/wireless/rtl8180_dev.c
@@ -182,15 +182,13 @@ static void rtl8180_handle_tx(struct ieee80211_hw *dev, unsigned int prio)
 				 skb->len, PCI_DMA_TODEVICE);
 
 		info = IEEE80211_SKB_CB(skb);
-		memset(&info->status, 0, sizeof(info->status));
+		ieee80211_tx_info_clear_status(info);
 
-		if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
-			if (flags & RTL818X_TX_DESC_FLAG_TX_OK)
-				info->flags |= IEEE80211_TX_STAT_ACK;
-			else
-				info->status.excessive_retries = 1;
-		}
-		info->status.retry_count = flags & 0xFF;
+		if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
+		    (flags & RTL818X_TX_DESC_FLAG_TX_OK))
+			info->flags |= IEEE80211_TX_STAT_ACK;
+
+		info->status.rates[0].count = (flags & 0xFF) + 1;
 
 		ieee80211_tx_status_irqsafe(dev, skb);
 		if (ring->entries - skb_queue_len(&ring->queue) == 2)
@@ -243,6 +241,7 @@ static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 	unsigned int idx, prio;
 	dma_addr_t mapping;
 	u32 tx_flags;
+	u8 rc_flags;
 	u16 plcp_len = 0;
 	__le16 rts_duration = 0;
 
@@ -261,15 +260,16 @@ static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 		tx_flags |= RTL818X_TX_DESC_FLAG_DMA |
 			    RTL818X_TX_DESC_FLAG_NO_ENC;
 
-	if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
+	rc_flags = info->control.rates[0].flags;
+	if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
 		tx_flags |= RTL818X_TX_DESC_FLAG_RTS;
 		tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
-	} else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
+	} else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 		tx_flags |= RTL818X_TX_DESC_FLAG_CTS;
 		tx_flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
 	}
 
-	if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS)
+	if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
 		rts_duration = ieee80211_rts_duration(dev, priv->vif, skb->len,
 						      info);
 
@@ -292,9 +292,9 @@ static int rtl8180_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 	entry->plcp_len = cpu_to_le16(plcp_len);
 	entry->tx_buf = cpu_to_le32(mapping);
 	entry->frame_len = cpu_to_le32(skb->len);
-	entry->flags2 = info->control.retries[0].rate_idx >= 0 ?
+	entry->flags2 = info->control.rates[1].idx >= 0 ?
 		ieee80211_get_alt_retry_rate(dev, info, 0)->bitrate << 4 : 0;
-	entry->retry_limit = info->control.retry_limit;
+	entry->retry_limit = info->control.rates[0].count;
 	entry->flags = cpu_to_le32(tx_flags);
 	__skb_queue_tail(&ring->queue, skb);
 	if (ring->entries - skb_queue_len(&ring->queue) < 2)
@@ -855,7 +855,7 @@ static int __devinit rtl8180_probe(struct pci_dev *pdev,
 	priv = dev->priv;
 	priv->pdev = pdev;
 
-	dev->max_altrates = 1;
+	dev->max_rates = 2;
 	SET_IEEE80211_DEV(dev, &pdev->dev);
 	pci_set_drvdata(pdev, dev);
 
diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c
index cd839bcb6d78..6260ed8ce12b 100644
--- a/drivers/net/wireless/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl8187_dev.c
@@ -160,13 +160,13 @@ static void rtl8187_tx_cb(struct urb *urb)
 {
 	struct sk_buff *skb = (struct sk_buff *)urb->context;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_hw *hw = info->driver_data[0];
+	struct ieee80211_hw *hw = info->rate_driver_data[0];
 	struct rtl8187_priv *priv = hw->priv;
 
-	usb_free_urb(info->driver_data[1]);
+	usb_free_urb(info->rate_driver_data[1]);
 	skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) :
 					  sizeof(struct rtl8187_tx_hdr));
-	memset(&info->status, 0, sizeof(info->status));
+	ieee80211_tx_info_clear_status(info);
 	info->flags |= IEEE80211_TX_STAT_ACK;
 	ieee80211_tx_status_irqsafe(hw, skb);
 }
@@ -194,12 +194,12 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 	flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24;
 	if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control))
 		flags |= RTL818X_TX_DESC_FLAG_MOREFRAG;
-	if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
+	if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
 		flags |= RTL818X_TX_DESC_FLAG_RTS;
 		flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
 		rts_dur = ieee80211_rts_duration(dev, priv->vif,
 						 skb->len, info);
-	} else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
+	} else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
 		flags |= RTL818X_TX_DESC_FLAG_CTS;
 		flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19;
 	}
@@ -210,7 +210,7 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 		hdr->flags = cpu_to_le32(flags);
 		hdr->len = 0;
 		hdr->rts_duration = rts_dur;
-		hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
+		hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
 		buf = hdr;
 
 		ep = 2;
@@ -228,7 +228,7 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 		memset(hdr, 0, sizeof(*hdr));
 		hdr->flags = cpu_to_le32(flags);
 		hdr->rts_duration = rts_dur;
-		hdr->retry = cpu_to_le32(info->control.retry_limit << 8);
+		hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8);
 		hdr->tx_duration =
 			ieee80211_generic_frame_duration(dev, priv->vif,
 							 skb->len, txrate);
@@ -240,8 +240,8 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
 			ep = epmap[skb_get_queue_mapping(skb)];
 	}
 
-	info->driver_data[0] = dev;
-	info->driver_data[1] = urb;
+	info->rate_driver_data[0] = dev;
+	info->rate_driver_data[1] = urb;
 
 	usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep),
 			  buf, skb->len, rtl8187_tx_cb, skb);
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c
index 6c3e21887fc8..2f0802b29c4b 100644
--- a/drivers/net/wireless/zd1211rw/zd_mac.c
+++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -296,15 +296,14 @@ static void zd_op_stop(struct ieee80211_hw *hw)
  * If no status information has been requested, the skb is freed.
  */
 static void tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
-		      u32 flags, int ackssi, bool success)
+		      int ackssi, bool success)
 {
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
-	memset(&info->status, 0, sizeof(info->status));
+	ieee80211_tx_info_clear_status(info);
 
-	if (!success)
-		info->status.excessive_retries = 1;
-	info->flags |= flags;
+	if (success)
+		info->flags |= IEEE80211_TX_STAT_ACK;
 	info->status.ack_signal = ackssi;
 	ieee80211_tx_status_irqsafe(hw, skb);
 }
@@ -326,7 +325,7 @@ void zd_mac_tx_failed(struct ieee80211_hw *hw)
 	if (skb == NULL)
 		return;
 
-	tx_status(hw, skb, 0, 0, 0);
+	tx_status(hw, skb, 0, 0);
 }
 
 /**
@@ -342,12 +341,12 @@ void zd_mac_tx_failed(struct ieee80211_hw *hw)
 void zd_mac_tx_to_dev(struct sk_buff *skb, int error)
 {
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_hw *hw = info->driver_data[0];
+	struct ieee80211_hw *hw = info->rate_driver_data[0];
 
 	skb_pull(skb, sizeof(struct zd_ctrlset));
 	if (unlikely(error ||
 	    (info->flags & IEEE80211_TX_CTL_NO_ACK))) {
-		tx_status(hw, skb, 0, 0, !error);
+		tx_status(hw, skb, 0, !error);
 	} else {
 		struct sk_buff_head *q =
 			&zd_hw_mac(hw)->ack_wait_queue;
@@ -406,7 +405,8 @@ static int zd_calc_tx_length_us(u8 *service, u8 zd_rate, u16 tx_length)
 }
 
 static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs,
-	                   struct ieee80211_hdr *header, u32 flags)
+	                   struct ieee80211_hdr *header,
+	                   struct ieee80211_tx_info *info)
 {
 	/*
 	 * CONTROL TODO:
@@ -417,7 +417,7 @@ static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs,
 	cs->control = 0;
 
 	/* First fragment */
-	if (flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
+	if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
 		cs->control |= ZD_CS_NEED_RANDOM_BACKOFF;
 
 	/* Multicast */
@@ -428,10 +428,10 @@ static void cs_set_control(struct zd_mac *mac, struct zd_ctrlset *cs,
 	if (ieee80211_is_pspoll(header->frame_control))
 		cs->control |= ZD_CS_PS_POLL_FRAME;
 
-	if (flags & IEEE80211_TX_CTL_USE_RTS_CTS)
+	if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
 		cs->control |= ZD_CS_RTS;
 
-	if (flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)
+	if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
 		cs->control |= ZD_CS_SELF_CTS;
 
 	/* FIXME: Management frame? */
@@ -517,12 +517,12 @@ static int fill_ctrlset(struct zd_mac *mac,
 	txrate = ieee80211_get_tx_rate(mac->hw, info);
 
 	cs->modulation = txrate->hw_value;
-	if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE)
+	if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
 		cs->modulation = txrate->hw_value_short;
 
 	cs->tx_length = cpu_to_le16(frag_len);
 
-	cs_set_control(mac, cs, hdr, info->flags);
+	cs_set_control(mac, cs, hdr, info);
 
 	packet_length = frag_len + sizeof(struct zd_ctrlset) + 10;
 	ZD_ASSERT(packet_length <= 0xffff);
@@ -577,7 +577,7 @@ static int zd_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	if (r)
 		return r;
 
-	info->driver_data[0] = hw;
+	info->rate_driver_data[0] = hw;
 
 	r = zd_usb_tx(&mac->chip.usb, skb);
 	if (r)
@@ -618,7 +618,7 @@ static int filter_ack(struct ieee80211_hw *hw, struct ieee80211_hdr *rx_hdr,
 		if (likely(!compare_ether_addr(tx_hdr->addr2, rx_hdr->addr1)))
 		{
 			__skb_unlink(skb, q);
-			tx_status(hw, skb, IEEE80211_TX_STAT_ACK, stats->signal, 1);
+			tx_status(hw, skb, stats->signal, 1);
 			goto out;
 		}
 	}
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index a60ae86bd5c9..d7a2f52e40cf 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -907,7 +907,7 @@ free_urb:
 	 * it might be freed by zd_mac_tx_to_dev or mac80211)
 	 */
 	info = IEEE80211_SKB_CB(skb);
-	usb = &zd_hw_mac(info->driver_data[0])->chip.usb;
+	usb = &zd_hw_mac(info->rate_driver_data[0])->chip.usb;
 	zd_mac_tx_to_dev(skb, urb->status);
 	free_tx_urb(usb, urb);
 	tx_dec_submitted_urbs(usb);
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 9801afb62545..3741c0a7978a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -214,29 +214,24 @@ struct ieee80211_bss_conf {
  * These flags are used with the @flags member of &ieee80211_tx_info.
  *
  * @IEEE80211_TX_CTL_REQ_TX_STATUS: request TX status callback for this frame.
- * @IEEE80211_TX_CTL_USE_RTS_CTS: use RTS-CTS before sending frame
- * @IEEE80211_TX_CTL_USE_CTS_PROTECT: use CTS protection for the frame (e.g.,
- *	for combined 802.11g / 802.11b networks)
+ * @IEEE80211_TX_CTL_ASSIGN_SEQ: The driver has to assign a sequence
+ *	number to this frame, taking care of not overwriting the fragment
+ *	number and increasing the sequence number only when the
+ *	IEEE80211_TX_CTL_FIRST_FRAGMENT flag is set. mac80211 will properly
+ *	assign sequence numbers to QoS-data frames but cannot do so correctly
+ *	for non-QoS-data and management frames because beacons need them from
+ *	that counter as well and mac80211 cannot guarantee proper sequencing.
+ *	If this flag is set, the driver should instruct the hardware to
+ *	assign a sequence number to the frame or assign one itself. Cf. IEEE
+ *	802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for
+ *	beacons and always be clear for frames without a sequence number field.
  * @IEEE80211_TX_CTL_NO_ACK: tell the low level not to wait for an ack
- * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: TBD
  * @IEEE80211_TX_CTL_CLEAR_PS_FILT: clear powersave filter for destination
  *	station
- * @IEEE80211_TX_CTL_REQUEUE: TBD
  * @IEEE80211_TX_CTL_FIRST_FRAGMENT: this is a first fragment of the frame
- * @IEEE80211_TX_CTL_SHORT_PREAMBLE: TBD
- * @IEEE80211_TX_CTL_LONG_RETRY_LIMIT: this frame should be send using the
- *	through set_retry_limit configured long retry value
  * @IEEE80211_TX_CTL_SEND_AFTER_DTIM: send this frame after DTIM beacon
  * @IEEE80211_TX_CTL_AMPDU: this frame should be sent as part of an A-MPDU
- * @IEEE80211_TX_CTL_OFDM_HT: this frame can be sent in HT OFDM rates. number
- *	of streams when this flag is on can be extracted from antenna_sel_tx,
- *	so if 1 antenna is marked use SISO, 2 antennas marked use MIMO, n
- *	antennas marked use MIMO_n.
- * @IEEE80211_TX_CTL_GREEN_FIELD: use green field protection for this frame
- * @IEEE80211_TX_CTL_40_MHZ_WIDTH: send this frame using 40 Mhz channel width
- * @IEEE80211_TX_CTL_DUP_DATA: duplicate data frame on both 20 Mhz channels
- * @IEEE80211_TX_CTL_SHORT_GI: send this frame using short guard interval
- * @IEEE80211_TX_CTL_INJECTED: TBD
+ * @IEEE80211_TX_CTL_INJECTED: Frame was injected, internal to mac80211.
  * @IEEE80211_TX_STAT_TX_FILTERED: The frame was not transmitted
  *	because the destination STA was in powersave mode.
  * @IEEE80211_TX_STAT_ACK: Frame was acknowledged
@@ -244,62 +239,70 @@ struct ieee80211_bss_conf {
  * 	is for the whole aggregation.
  * @IEEE80211_TX_STAT_AMPDU_NO_BACK: no block ack was returned,
  * 	so consider using block ack request (BAR).
- * @IEEE80211_TX_CTL_ASSIGN_SEQ: The driver has to assign a sequence
- *	number to this frame, taking care of not overwriting the fragment
- *	number and increasing the sequence number only when the
- *	IEEE80211_TX_CTL_FIRST_FRAGMENT flags is set. mac80211 will properly
- *	assign sequence numbers to QoS-data frames but cannot do so correctly
- *	for non-QoS-data and management frames because beacons need them from
- *	that counter as well and mac80211 cannot guarantee proper sequencing.
- *	If this flag is set, the driver should instruct the hardware to
- *	assign a sequence number to the frame or assign one itself. Cf. IEEE
- *	802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for
- *	beacons always be clear for frames without a sequence number field.
+ * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: internal to mac80211, can be
+ *	set by rate control algorithms to indicate probe rate, will
+ *	be cleared for fragmented frames (except on the last fragment)
+ * @IEEE80211_TX_CTL_REQUEUE: REMOVE THIS
  */
 enum mac80211_tx_control_flags {
 	IEEE80211_TX_CTL_REQ_TX_STATUS		= BIT(0),
-	IEEE80211_TX_CTL_USE_RTS_CTS		= BIT(2),
-	IEEE80211_TX_CTL_USE_CTS_PROTECT	= BIT(3),
-	IEEE80211_TX_CTL_NO_ACK			= BIT(4),
-	IEEE80211_TX_CTL_RATE_CTRL_PROBE	= BIT(5),
-	IEEE80211_TX_CTL_CLEAR_PS_FILT		= BIT(6),
-	IEEE80211_TX_CTL_REQUEUE		= BIT(7),
-	IEEE80211_TX_CTL_FIRST_FRAGMENT		= BIT(8),
-	IEEE80211_TX_CTL_SHORT_PREAMBLE		= BIT(9),
-	IEEE80211_TX_CTL_LONG_RETRY_LIMIT	= BIT(10),
-	IEEE80211_TX_CTL_SEND_AFTER_DTIM	= BIT(12),
-	IEEE80211_TX_CTL_AMPDU			= BIT(13),
-	IEEE80211_TX_CTL_OFDM_HT		= BIT(14),
-	IEEE80211_TX_CTL_GREEN_FIELD		= BIT(15),
-	IEEE80211_TX_CTL_40_MHZ_WIDTH		= BIT(16),
-	IEEE80211_TX_CTL_DUP_DATA		= BIT(17),
-	IEEE80211_TX_CTL_SHORT_GI		= BIT(18),
-	IEEE80211_TX_CTL_INJECTED		= BIT(19),
-	IEEE80211_TX_STAT_TX_FILTERED		= BIT(20),
-	IEEE80211_TX_STAT_ACK			= BIT(21),
-	IEEE80211_TX_STAT_AMPDU			= BIT(22),
-	IEEE80211_TX_STAT_AMPDU_NO_BACK		= BIT(23),
-	IEEE80211_TX_CTL_ASSIGN_SEQ		= BIT(24),
+	IEEE80211_TX_CTL_ASSIGN_SEQ		= BIT(1),
+	IEEE80211_TX_CTL_NO_ACK			= BIT(2),
+	IEEE80211_TX_CTL_CLEAR_PS_FILT		= BIT(3),
+	IEEE80211_TX_CTL_FIRST_FRAGMENT		= BIT(4),
+	IEEE80211_TX_CTL_SEND_AFTER_DTIM	= BIT(5),
+	IEEE80211_TX_CTL_AMPDU			= BIT(6),
+	IEEE80211_TX_CTL_INJECTED		= BIT(7),
+	IEEE80211_TX_STAT_TX_FILTERED		= BIT(8),
+	IEEE80211_TX_STAT_ACK			= BIT(9),
+	IEEE80211_TX_STAT_AMPDU			= BIT(10),
+	IEEE80211_TX_STAT_AMPDU_NO_BACK		= BIT(11),
+	IEEE80211_TX_CTL_RATE_CTRL_PROBE	= BIT(12),
+
+	/* XXX: remove this */
+	IEEE80211_TX_CTL_REQUEUE		= BIT(13),
 };
 
+enum mac80211_rate_control_flags {
+	IEEE80211_TX_RC_USE_RTS_CTS		= BIT(0),
+	IEEE80211_TX_RC_USE_CTS_PROTECT		= BIT(1),
+	IEEE80211_TX_RC_USE_SHORT_PREAMBLE	= BIT(2),
+
+	/* rate index is an MCS rate number instead of an index */
+	IEEE80211_TX_RC_MCS			= BIT(3),
+	IEEE80211_TX_RC_GREEN_FIELD		= BIT(4),
+	IEEE80211_TX_RC_40_MHZ_WIDTH		= BIT(5),
+	IEEE80211_TX_RC_DUP_DATA		= BIT(6),
+	IEEE80211_TX_RC_SHORT_GI		= BIT(7),
+};
+
+
+/* there are 40 bytes if you don't need the rateset to be kept */
+#define IEEE80211_TX_INFO_DRIVER_DATA_SIZE 40
 
-#define IEEE80211_TX_INFO_DRIVER_DATA_SIZE \
-	(sizeof(((struct sk_buff *)0)->cb) - 8)
-#define IEEE80211_TX_INFO_DRIVER_DATA_PTRS \
-	(IEEE80211_TX_INFO_DRIVER_DATA_SIZE / sizeof(void *))
+/* if you do need the rateset, then you have less space */
+#define IEEE80211_TX_INFO_RATE_DRIVER_DATA_SIZE 24
 
-/* maximum number of alternate rate retry stages */
-#define IEEE80211_TX_MAX_ALTRATE	3
+/* maximum number of rate stages */
+#define IEEE80211_TX_MAX_RATES	5
 
 /**
- * struct ieee80211_tx_altrate - alternate rate selection/status
+ * struct ieee80211_tx_rate - rate selection/status
  *
- * @rate_idx: rate index to attempt to send with
+ * @idx: rate index to attempt to send with
+ * @flags: rate control flags (&enum mac80211_rate_control_flags)
  * @limit: number of retries before fallback
+ *
+ * A value of -1 for @idx indicates an invalid rate and, if used
+ * in an array of retry rates, that no more rates should be tried.
+ *
+ * When used for transmit status reporting, the driver should
+ * always report the rate along with the flags it used.
  */
-struct ieee80211_tx_altrate {
-	s8 rate_idx;
-	u8 limit;
+struct ieee80211_tx_rate {
+	s8 idx;
+	u8 count;
+	u8 flags;
 };
 
 /**
@@ -314,15 +317,12 @@ struct ieee80211_tx_altrate {
  * it may be NULL.
  *
  * @flags: transmit info flags, defined above
- * @band: TBD
- * @tx_rate_idx: TBD
+ * @band: the band to transmit on (use for checking for races)
  * @antenna_sel_tx: antenna to use, 0 for automatic diversity
  * @control: union for control data
  * @status: union for status data
  * @driver_data: array of driver_data pointers
  * @retry_count: number of retries
- * @excessive_retries: set to 1 if the frame was retried many times
- *	but not acknowledged
  * @ampdu_ack_len: number of aggregated frames.
  * 	relevant only if IEEE80211_TX_STATUS_AMPDU was set.
  * @ampdu_ack_map: block ack bit map for the aggregation.
@@ -333,31 +333,43 @@ struct ieee80211_tx_info {
 	/* common information */
 	u32 flags;
 	u8 band;
-	s8 tx_rate_idx;
+
 	u8 antenna_sel_tx;
 
-	/* 1 byte hole */
+	/* 2 byte hole */
 
 	union {
 		struct {
+			union {
+				/* rate control */
+				struct {
+					struct ieee80211_tx_rate rates[
+						IEEE80211_TX_MAX_RATES];
+					s8 rts_cts_rate_idx;
+				};
+				/* only needed before rate control */
+				unsigned long jiffies;
+			};
 			/* NB: vif can be NULL for injected frames */
 			struct ieee80211_vif *vif;
 			struct ieee80211_key_conf *hw_key;
 			struct ieee80211_sta *sta;
-			unsigned long jiffies;
-			s8 rts_cts_rate_idx;
-			u8 retry_limit;
-			struct ieee80211_tx_altrate retries[IEEE80211_TX_MAX_ALTRATE];
 		} control;
 		struct {
+			struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES];
+			u8 ampdu_ack_len;
 			u64 ampdu_ack_map;
 			int ack_signal;
-			struct ieee80211_tx_altrate retries[IEEE80211_TX_MAX_ALTRATE + 1];
-			u8 retry_count;
-			bool excessive_retries;
-			u8 ampdu_ack_len;
+			/* 8 bytes free */
 		} status;
-		void *driver_data[IEEE80211_TX_INFO_DRIVER_DATA_PTRS];
+		struct {
+			struct ieee80211_tx_rate driver_rates[
+				IEEE80211_TX_MAX_RATES];
+			void *rate_driver_data[
+				IEEE80211_TX_INFO_RATE_DRIVER_DATA_SIZE / sizeof(void *)];
+		};
+		void *driver_data[
+			IEEE80211_TX_INFO_DRIVER_DATA_SIZE / sizeof(void *)];
 	};
 };
 
@@ -366,6 +378,41 @@ static inline struct ieee80211_tx_info *IEEE80211_SKB_CB(struct sk_buff *skb)
 	return (struct ieee80211_tx_info *)skb->cb;
 }
 
+/**
+ * ieee80211_tx_info_clear_status - clear TX status
+ *
+ * @info: The &struct ieee80211_tx_info to be cleared.
+ *
+ * When the driver passes an skb back to mac80211, it must report
+ * a number of things in TX status. This function clears everything
+ * in the TX status but the rate control information (it does clear
+ * the count since you need to fill that in anyway).
+ *
+ * NOTE: You can only use this function if you do NOT use
+ *	 info->driver_data! Use info->rate_driver_data
+ *	 instead if you need only the less space that allows.
+ */
+static inline void
+ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
+{
+	int i;
+
+	BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) !=
+		     offsetof(struct ieee80211_tx_info, control.rates));
+	BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) !=
+		     offsetof(struct ieee80211_tx_info, driver_rates));
+	BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) != 8);
+	/* clear the rate counts */
+	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++)
+		info->status.rates[i].count = 0;
+
+	BUILD_BUG_ON(
+	    offsetof(struct ieee80211_tx_info, status.ampdu_ack_len) != 23);
+	memset(&info->status.ampdu_ack_len, 0,
+	       sizeof(struct ieee80211_tx_info) -
+	       offsetof(struct ieee80211_tx_info, status.ampdu_ack_len));
+}
+
 
 /**
  * enum mac80211_rx_flags - receive flags
@@ -869,8 +916,8 @@ enum ieee80211_hw_flags {
  * @sta_data_size: size (in bytes) of the drv_priv data area
  *	within &struct ieee80211_sta.
  *
- * @max_altrates: maximum number of alternate rate retry stages
- * @max_altrate_tries: maximum number of tries for each stage
+ * @max_rates: maximum number of alternate rate retry stages
+ * @max_rate_tries: maximum number of tries for each stage
  */
 struct ieee80211_hw {
 	struct ieee80211_conf conf;
@@ -887,8 +934,8 @@ struct ieee80211_hw {
 	u16 ampdu_queues;
 	u16 max_listen_interval;
 	s8 max_signal;
-	u8 max_altrates;
-	u8 max_altrate_tries;
+	u8 max_rates;
+	u8 max_rate_tries;
 };
 
 /**
@@ -927,9 +974,9 @@ static inline struct ieee80211_rate *
 ieee80211_get_tx_rate(const struct ieee80211_hw *hw,
 		      const struct ieee80211_tx_info *c)
 {
-	if (WARN_ON(c->tx_rate_idx < 0))
+	if (WARN_ON(c->control.rates[0].idx < 0))
 		return NULL;
-	return &hw->wiphy->bands[c->band]->bitrates[c->tx_rate_idx];
+	return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[0].idx];
 }
 
 static inline struct ieee80211_rate *
@@ -945,9 +992,9 @@ static inline struct ieee80211_rate *
 ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw,
 			     const struct ieee80211_tx_info *c, int idx)
 {
-	if (c->control.retries[idx].rate_idx < 0)
+	if (c->control.rates[idx + 1].idx < 0)
 		return NULL;
-	return &hw->wiphy->bands[c->band]->bitrates[c->control.retries[idx].rate_idx];
+	return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[idx + 1].idx];
 }
 
 /**
@@ -1840,17 +1887,30 @@ struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_hw *hw,
 
 
 /* Rate control API */
+
 /**
- * struct rate_selection - rate information for/from rate control algorithms
- *
- * @rate_idx: selected transmission rate index
- * @nonerp_idx: Non-ERP rate to use instead if ERP cannot be used
- * @probe_idx: rate for probing (or -1)
- * @max_rate_idx: maximum rate index that can be used, this is
- *	input to the algorithm and will be enforced
- */
-struct rate_selection {
-	s8 rate_idx, nonerp_idx, probe_idx, max_rate_idx;
+ * struct ieee80211_tx_rate_control - rate control information for/from RC algo
+ *
+ * @hw: The hardware the algorithm is invoked for.
+ * @sband: The band this frame is being transmitted on.
+ * @bss_conf: the current BSS configuration
+ * @reported_rate: The rate control algorithm can fill this in to indicate
+ *	which rate should be reported to userspace as the current rate and
+ *	used for rate calculations in the mesh network.
+ * @rts: whether RTS will be used for this frame because it is longer than the
+ *	RTS threshold
+ * @short_preamble: whether mac80211 will request short-preamble transmission
+ *	if the selected rate supports it
+ * @max_rate_idx: user-requested maximum rate (not MCS for now)
+ */
+struct ieee80211_tx_rate_control {
+	struct ieee80211_hw *hw;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_bss_conf *bss_conf;
+	struct sk_buff *skb;
+	struct ieee80211_tx_rate reported_rate;
+	bool rts, short_preamble;
+	u8 max_rate_idx;
 };
 
 struct rate_control_ops {
@@ -1869,10 +1929,8 @@ struct rate_control_ops {
 	void (*tx_status)(void *priv, struct ieee80211_supported_band *sband,
 			  struct ieee80211_sta *sta, void *priv_sta,
 			  struct sk_buff *skb);
-	void (*get_rate)(void *priv, struct ieee80211_supported_band *sband,
-			 struct ieee80211_sta *sta, void *priv_sta,
-			 struct sk_buff *skb,
-			 struct rate_selection *sel);
+	void (*get_rate)(void *priv, struct ieee80211_sta *sta, void *priv_sta,
+			 struct ieee80211_tx_rate_control *txrc);
 
 	void (*add_sta_debugfs)(void *priv, void *priv_sta,
 				struct dentry *dir);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 6f8756d26a93..fe4efdd4253d 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -142,7 +142,6 @@ typedef unsigned __bitwise__ ieee80211_tx_result;
 #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)
 
 struct ieee80211_tx_data {
 	struct sk_buff *skb;
@@ -153,11 +152,6 @@ struct ieee80211_tx_data {
 	struct ieee80211_key *key;
 
 	struct ieee80211_channel *channel;
-	s8 rate_idx;
-	/* 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. */
-	s8 last_frag_rate_idx;
 
 	/* Extra fragments (in addition to the first fragment
 	 * in skb) */
@@ -203,9 +197,7 @@ struct ieee80211_rx_data {
 struct ieee80211_tx_stored_packet {
 	struct sk_buff *skb;
 	struct sk_buff **extra_frag;
-	s8 last_frag_rate_idx;
 	int num_extra_frag;
-	bool last_frag_rate_ctrl_probe;
 };
 
 struct beacon_data {
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index ffff54944f9d..88c1975a97a5 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -41,6 +41,8 @@
  */
 struct ieee80211_tx_status_rtap_hdr {
 	struct ieee80211_radiotap_header hdr;
+	u8 rate;
+	u8 padding_for_rate;
 	__le16 tx_flags;
 	u8 data_retries;
 } __attribute__ ((packed));
@@ -465,13 +467,28 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 	struct ieee80211_sub_if_data *sdata;
 	struct net_device *prev_dev = NULL;
 	struct sta_info *sta;
+	int retry_count = -1, i;
+
+	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
+		/* the HW cannot have attempted that rate */
+		if (i >= hw->max_rates) {
+			info->status.rates[i].idx = -1;
+			info->status.rates[i].count = 0;
+		}
+
+		retry_count += info->status.rates[i].count;
+	}
+	if (retry_count < 0)
+		retry_count = 0;
 
 	rcu_read_lock();
 
+	sband = local->hw.wiphy->bands[info->band];
+
 	sta = sta_info_get(local, hdr->addr1);
 
 	if (sta) {
-		if (info->status.excessive_retries &&
+		if (!(info->flags & IEEE80211_TX_STAT_ACK) &&
 		    test_sta_flags(sta, WLAN_STA_PS)) {
 			/*
 			 * The STA is in power save mode, so assume
@@ -502,12 +519,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 			rcu_read_unlock();
 			return;
 		} else {
-			if (info->status.excessive_retries)
+			if (!(info->flags & IEEE80211_TX_STAT_ACK))
 				sta->tx_retry_failed++;
-			sta->tx_retry_count += info->status.retry_count;
+			sta->tx_retry_count += retry_count;
 		}
 
-		sband = local->hw.wiphy->bands[info->band];
 		rate_control_tx_status(local, sband, sta, skb);
 	}
 
@@ -528,9 +544,9 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 			local->dot11TransmittedFrameCount++;
 			if (is_multicast_ether_addr(hdr->addr1))
 				local->dot11MulticastTransmittedFrameCount++;
-			if (info->status.retry_count > 0)
+			if (retry_count > 0)
 				local->dot11RetryCount++;
-			if (info->status.retry_count > 1)
+			if (retry_count > 1)
 				local->dot11MultipleRetryCount++;
 		}
 
@@ -574,19 +590,30 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
 	rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
 	rthdr->hdr.it_present =
 		cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) |
-			    (1 << IEEE80211_RADIOTAP_DATA_RETRIES));
+			    (1 << IEEE80211_RADIOTAP_DATA_RETRIES) |
+			    (1 << IEEE80211_RADIOTAP_RATE));
 
 	if (!(info->flags & IEEE80211_TX_STAT_ACK) &&
 	    !is_multicast_ether_addr(hdr->addr1))
 		rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL);
 
-	if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) &&
-	    (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT))
+	/*
+	 * XXX: Once radiotap gets the bitmap reset thing the vendor
+	 *	extensions proposal contains, we can actually report
+	 *	the whole set of tries we did.
+	 */
+	if ((info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
+	    (info->status.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT))
 		rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS);
-	else if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS)
+	else if (info->status.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
 		rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS);
+	if (info->status.rates[0].idx >= 0 &&
+	    !(info->status.rates[0].flags & IEEE80211_TX_RC_MCS))
+		rthdr->rate = sband->bitrates[
+				info->status.rates[0].idx].bitrate / 5;
 
-	rthdr->data_retries = info->status.retry_count;
+	/* for now report the total retry_count */
+	rthdr->data_retries = retry_count;
 
 	/* XXX: is this sufficient for BPF? */
 	skb_set_mac_header(skb, 0);
@@ -671,8 +698,9 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 	BUG_ON(!ops->configure_filter);
 	local->ops = ops;
 
-	local->hw.queues = 1; /* default */
-
+	/* set up some defaults */
+	local->hw.queues = 1;
+	local->hw.max_rates = 1;
 	local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
 	local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
 	local->hw.conf.long_frame_max_tx_count = 4;
diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
index 501c7831adb4..e8d573d592e7 100644
--- a/net/mac80211/mesh_hwmp.c
+++ b/net/mac80211/mesh_hwmp.c
@@ -218,12 +218,16 @@ static u32 airtime_link_metric_get(struct ieee80211_local *local,
 
 	if (sta->fail_avg >= 100)
 		return MAX_METRIC;
+
+	if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
+		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->last_txrate_idx].bitrate;
+	rate = sband->bitrates[sta->last_tx_rate.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) ;
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 5d786720d935..3fa7ab285066 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -199,48 +199,44 @@ static void rate_control_release(struct kref *kref)
 }
 
 void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
-			   struct ieee80211_supported_band *sband,
-			   struct sta_info *sta, struct sk_buff *skb,
-			   struct rate_selection *sel)
+			   struct sta_info *sta,
+			   struct ieee80211_tx_rate_control *txrc)
 {
 	struct rate_control_ref *ref = sdata->local->rate_ctrl;
 	void *priv_sta = NULL;
 	struct ieee80211_sta *ista = NULL;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb);
 	int i;
 
-	sel->rate_idx = -1;
-	sel->nonerp_idx = -1;
-	sel->probe_idx = -1;
-	sel->max_rate_idx = sdata->max_ratectrl_rateidx;
-
 	if (sta) {
 		ista = &sta->sta;
 		priv_sta = sta->rate_ctrl_priv;
 	}
 
+	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
+		info->control.rates[i].idx = -1;
+		info->control.rates[i].flags = 0;
+		info->control.rates[i].count = 1;
+	}
+
 	if (sta && sdata->force_unicast_rateidx > -1)
-		sel->rate_idx = sdata->force_unicast_rateidx;
+		info->control.rates[0].idx = sdata->force_unicast_rateidx;
 	else
-		ref->ops->get_rate(ref->priv, sband, ista, priv_sta, skb, sel);
-
-	if (sdata->max_ratectrl_rateidx > -1 &&
-	    sel->rate_idx > sdata->max_ratectrl_rateidx)
-		sel->rate_idx = sdata->max_ratectrl_rateidx;
-
-	BUG_ON(sel->rate_idx < 0);
-
-	/* Select a non-ERP backup rate. */
-	if (sel->nonerp_idx < 0) {
-		for (i = 0; i < sband->n_bitrates; i++) {
-			struct ieee80211_rate *rate = &sband->bitrates[i];
-			if (sband->bitrates[sel->rate_idx].bitrate < rate->bitrate)
-				break;
-
-			if (rate_supported(ista, sband->band, i) &&
-			    !(rate->flags & IEEE80211_RATE_ERP_G))
-				sel->nonerp_idx = i;
-		}
+		ref->ops->get_rate(ref->priv, ista, priv_sta, txrc);
+
+	/*
+	 * try to enforce the maximum rate the user wanted
+	 */
+	if (sdata->max_ratectrl_rateidx > -1)
+		for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
+			if (info->control.rates[i].flags & IEEE80211_TX_RC_MCS)
+				continue;
+			info->control.rates[i].idx =
+				min_t(s8, info->control.rates[i].idx,
+				      sdata->max_ratectrl_rateidx);
 	}
+
+	BUG_ON(info->control.rates[0].idx < 0);
 }
 
 struct rate_control_ref *rate_control_get(struct rate_control_ref *ref)
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index d0092f847f82..7c25edf9ac55 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -31,9 +31,8 @@ struct rate_control_ref {
 struct rate_control_ref *rate_control_alloc(const char *name,
 					    struct ieee80211_local *local);
 void rate_control_get_rate(struct ieee80211_sub_if_data *sdata,
-			   struct ieee80211_supported_band *sband,
-			   struct sta_info *sta, struct sk_buff *skb,
-			   struct rate_selection *sel);
+			   struct sta_info *sta,
+			   struct ieee80211_tx_rate_control *txrc);
 struct rate_control_ref *rate_control_get(struct rate_control_ref *ref);
 void rate_control_put(struct rate_control_ref *ref);
 
diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index f6d69dab07a3..759ddd8bf0f4 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -169,30 +169,20 @@ minstrel_tx_status(void *priv, struct ieee80211_supported_band *sband,
 {
 	struct minstrel_sta_info *mi = priv_sta;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	struct ieee80211_tx_altrate *ar = info->status.retries;
-	struct minstrel_priv *mp = priv;
-	int i, ndx, tries;
-	int success = 0;
+	struct ieee80211_tx_rate *ar = info->status.rates;
+	int i, ndx;
+	int success;
 
-	if (!info->status.excessive_retries)
-		success = 1;
+	success = !!(info->flags & IEEE80211_TX_STAT_ACK);
 
-	if (!mp->has_mrr || (ar[0].rate_idx < 0)) {
-		ndx = rix_to_ndx(mi, info->tx_rate_idx);
-		tries = info->status.retry_count + 1;
-		mi->r[ndx].success += success;
-		mi->r[ndx].attempts += tries;
-		return;
-	}
-
-	for (i = 0; i < 4; i++) {
-		if (ar[i].rate_idx < 0)
+	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
+		if (ar[i].idx < 0)
 			break;
 
-		ndx = rix_to_ndx(mi, ar[i].rate_idx);
-		mi->r[ndx].attempts += ar[i].limit + 1;
+		ndx = rix_to_ndx(mi, ar[i].idx);
+		mi->r[ndx].attempts += ar[i].count;
 
-		if ((i != 3) && (ar[i + 1].rate_idx < 0))
+		if ((i != IEEE80211_TX_MAX_RATES - 1) && (ar[i + 1].idx < 0))
 			mi->r[ndx].success += success;
 	}
 
@@ -210,9 +200,9 @@ minstrel_get_retry_count(struct minstrel_rate *mr,
 {
 	unsigned int retry = mr->adjusted_retry_count;
 
-	if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS)
+	if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS)
 		retry = max(2U, min(mr->retry_count_rtscts, retry));
-	else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)
+	else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
 		retry = max(2U, min(mr->retry_count_cts, retry));
 	return retry;
 }
@@ -234,14 +224,15 @@ minstrel_get_next_sample(struct minstrel_sta_info *mi)
 }
 
 void
-minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband,
-                  struct ieee80211_sta *sta, void *priv_sta,
-                  struct sk_buff *skb, struct rate_selection *sel)
+minstrel_get_rate(void *priv, struct ieee80211_sta *sta,
+		  void *priv_sta, struct ieee80211_tx_rate_control *txrc)
 {
+	struct sk_buff *skb = txrc->skb;
+	struct ieee80211_supported_band *sband = txrc->sband;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct minstrel_sta_info *mi = priv_sta;
 	struct minstrel_priv *mp = priv;
-	struct ieee80211_tx_altrate *ar = info->control.retries;
+	struct ieee80211_tx_rate *ar = info->control.rates;
 	unsigned int ndx, sample_ndx = 0;
 	bool mrr;
 	bool sample_slower = false;
@@ -251,16 +242,12 @@ minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband,
 	int sample_rate;
 
 	if (!sta || !mi || use_low_rate(skb)) {
-		sel->rate_idx = rate_lowest_index(sband, sta);
+		ar[0].idx = rate_lowest_index(sband, sta);
+		ar[0].count = mp->max_retry;
 		return;
 	}
 
-	mrr = mp->has_mrr;
-
-	/* mac80211 does not allow mrr for RTS/CTS */
-	if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ||
-	    (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT))
-		mrr = false;
+	mrr = mp->has_mrr && !txrc->rts && !txrc->bss_conf->use_cts_prot;
 
 	if (time_after(jiffies, mi->stats_update + (mp->update_interval *
 			HZ) / 1000))
@@ -315,13 +302,12 @@ minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband,
 			mi->sample_deferred++;
 		}
 	}
-	sel->rate_idx = mi->r[ndx].rix;
-	info->control.retry_limit = minstrel_get_retry_count(&mi->r[ndx], info);
+	ar[0].idx = mi->r[ndx].rix;
+	ar[0].count = minstrel_get_retry_count(&mi->r[ndx], info);
 
 	if (!mrr) {
-		ar[0].rate_idx = mi->lowest_rix;
-		ar[0].limit = mp->max_retry;
-		ar[1].rate_idx = -1;
+		ar[1].idx = mi->lowest_rix;
+		ar[1].count = mp->max_retry;
 		return;
 	}
 
@@ -336,9 +322,9 @@ minstrel_get_rate(void *priv, struct ieee80211_supported_band *sband,
 	}
 	mrr_ndx[1] = mi->max_prob_rate;
 	mrr_ndx[2] = 0;
-	for (i = 0; i < 3; i++) {
-		ar[i].rate_idx = mi->r[mrr_ndx[i]].rix;
-		ar[i].limit = mi->r[mrr_ndx[i]].adjusted_retry_count;
+	for (i = 1; i < 4; i++) {
+		ar[i].idx = mi->r[mrr_ndx[i - 1]].rix;
+		ar[i].count = mi->r[mrr_ndx[i - 1]].adjusted_retry_count;
 	}
 }
 
@@ -532,13 +518,13 @@ minstrel_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
 	/* maximum time that the hw is allowed to stay in one MRR segment */
 	mp->segment_size = 6000;
 
-	if (hw->max_altrate_tries > 0)
-		mp->max_retry = hw->max_altrate_tries;
+	if (hw->max_rate_tries > 0)
+		mp->max_retry = hw->max_rate_tries;
 	else
 		/* safe default, does not necessarily have to match hw properties */
 		mp->max_retry = 7;
 
-	if (hw->max_altrates >= 3)
+	if (hw->max_rates >= 4)
 		mp->has_mrr = true;
 
 	mp->hw = hw;
diff --git a/net/mac80211/rc80211_pid.h b/net/mac80211/rc80211_pid.h
index ce099ea1d5d3..1a873f00691a 100644
--- a/net/mac80211/rc80211_pid.h
+++ b/net/mac80211/rc80211_pid.h
@@ -61,6 +61,7 @@ enum rc_pid_event_type {
 union rc_pid_event_data {
 	/* RC_PID_EVENT_TX_STATUS */
 	struct {
+		u32 flags;
 		struct ieee80211_tx_info tx_status;
 	};
 	/* RC_PID_EVENT_TYPE_RATE_CHANGE */
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 86eb374e3b87..92caecfcee78 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -241,7 +241,7 @@ static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_ba
 
 	/* Ignore all frames that were sent with a different rate than the rate
 	 * we currently advise mac80211 to use. */
-	if (info->tx_rate_idx != spinfo->txrate_idx)
+	if (info->status.rates[0].idx != spinfo->txrate_idx)
 		return;
 
 	spinfo->tx_num_xmit++;
@@ -253,10 +253,10 @@ static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_ba
 	/* We count frames that totally failed to be transmitted as two bad
 	 * frames, those that made it out but had some retries as one good and
 	 * one bad frame. */
-	if (info->status.excessive_retries) {
+	if (!(info->flags & IEEE80211_TX_STAT_ACK)) {
 		spinfo->tx_num_failed += 2;
 		spinfo->tx_num_xmit++;
-	} else if (info->status.retry_count) {
+	} else if (info->status.rates[0].count) {
 		spinfo->tx_num_failed++;
 		spinfo->tx_num_xmit++;
 	}
@@ -270,23 +270,32 @@ static void rate_control_pid_tx_status(void *priv, struct ieee80211_supported_ba
 }
 
 static void
-rate_control_pid_get_rate(void *priv, struct ieee80211_supported_band *sband,
-			  struct ieee80211_sta *sta, void *priv_sta,
-			  struct sk_buff *skb,
-			  struct rate_selection *sel)
+rate_control_pid_get_rate(void *priv, struct ieee80211_sta *sta,
+			  void *priv_sta,
+			  struct ieee80211_tx_rate_control *txrc)
 {
+	struct sk_buff *skb = txrc->skb;
+	struct ieee80211_supported_band *sband = txrc->sband;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct rc_pid_sta_info *spinfo = priv_sta;
 	int rateidx;
 	u16 fc;
 
+	if (txrc->rts)
+		info->control.rates[0].count =
+			txrc->hw->conf.long_frame_max_tx_count;
+	else
+		info->control.rates[0].count =
+			txrc->hw->conf.short_frame_max_tx_count;
+
 	/* Send management frames and broadcast/multicast data using lowest
 	 * rate. */
 	fc = le16_to_cpu(hdr->frame_control);
 	if (!sta || !spinfo ||
 	    (fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
 	    is_multicast_ether_addr(hdr->addr1)) {
-		sel->rate_idx = rate_lowest_index(sband, sta);
+		info->control.rates[0].idx = rate_lowest_index(sband, sta);
 		return;
 	}
 
@@ -295,7 +304,7 @@ rate_control_pid_get_rate(void *priv, struct ieee80211_supported_band *sband,
 	if (rateidx >= sband->n_bitrates)
 		rateidx = sband->n_bitrates - 1;
 
-	sel->rate_idx = rateidx;
+	info->control.rates[0].idx = rateidx;
 
 #ifdef CONFIG_MAC80211_DEBUGFS
 	rate_control_pid_event_tx_rate(&spinfo->events,
diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c
index 8121d3bc6835..a08a9b530347 100644
--- a/net/mac80211/rc80211_pid_debugfs.c
+++ b/net/mac80211/rc80211_pid_debugfs.c
@@ -43,6 +43,7 @@ void rate_control_pid_event_tx_status(struct rc_pid_event_buffer *buf,
 {
 	union rc_pid_event_data evd;
 
+	evd.flags = stat->flags;
 	memcpy(&evd.tx_status, stat, sizeof(struct ieee80211_tx_info));
 	rate_control_pid_event(buf, RC_PID_EVENT_TYPE_TX_STATUS, &evd);
 }
@@ -167,8 +168,8 @@ static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf,
 	switch (ev->type) {
 	case RC_PID_EVENT_TYPE_TX_STATUS:
 		p += snprintf(pb + p, length - p, "tx_status %u %u",
-			      ev->data.tx_status.status.excessive_retries,
-			      ev->data.tx_status.status.retry_count);
+			      !(ev->data.flags & IEEE80211_TX_STAT_ACK),
+			      ev->data.tx_status.status.rates[0].idx);
 		break;
 	case RC_PID_EVENT_TYPE_RATE_CHANGE:
 		p += snprintf(pb + p, length - p, "rate_change %d %d",
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 168a39a298bd..4ac372aa75ce 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -196,7 +196,7 @@ struct sta_ampdu_mlme {
  * @tx_packets: number of RX/TX MSDUs
  * @tx_bytes: TBD
  * @tx_fragments: number of transmitted MPDUs
- * @last_txrate_idx: Index of the last used transmit rate
+ * @last_txrate: description of the last used transmit rate
  * @tid_seq: TBD
  * @ampdu_mlme: TBD
  * @timer_to_tid: identity mapping to ID timers
@@ -267,7 +267,7 @@ struct sta_info {
 	unsigned long tx_packets;
 	unsigned long tx_bytes;
 	unsigned long tx_fragments;
-	unsigned int last_txrate_idx;
+	struct ieee80211_tx_rate last_tx_rate;
 	u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1];
 
 	/*
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 6f3e4be97631..21951bac1ef7 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -46,13 +46,20 @@ static __le16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
 	struct ieee80211_local *local = tx->local;
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_hdr *hdr;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+
+	/* assume HW handles this */
+	if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
+		return 0;
+
+	/* uh huh? */
+	if (WARN_ON_ONCE(info->control.rates[0].idx < 0))
+		return 0;
 
 	sband = local->hw.wiphy->bands[tx->channel->band];
-	txrate = &sband->bitrates[tx->rate_idx];
+	txrate = &sband->bitrates[info->control.rates[0].idx];
 
-	erp = 0;
-	if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
-		erp = txrate->flags & IEEE80211_RATE_ERP_G;
+	erp = txrate->flags & IEEE80211_RATE_ERP_G;
 
 	/*
 	 * data and mgmt (except PS Poll):
@@ -437,140 +444,154 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
 static ieee80211_tx_result debug_noinline
 ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
 {
-	struct rate_selection rsel;
-	struct ieee80211_supported_band *sband;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+	struct ieee80211_hdr *hdr = (void *)tx->skb->data;
+	struct ieee80211_supported_band *sband;
+	struct ieee80211_rate *rate;
+	int i, len;
+	bool inval = false, rts = false, short_preamble = false;
+	struct ieee80211_tx_rate_control txrc;
 
-	sband = tx->local->hw.wiphy->bands[tx->channel->band];
+	memset(&txrc, 0, sizeof(txrc));
 
-	if (likely(tx->rate_idx < 0)) {
-		rate_control_get_rate(tx->sdata, sband, tx->sta,
-				      tx->skb, &rsel);
-		if (tx->sta)
-			tx->sta->last_txrate_idx = rsel.rate_idx;
-		tx->rate_idx = rsel.rate_idx;
-		if (unlikely(rsel.probe_idx >= 0)) {
-			info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
-			tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG;
-			info->control.retries[0].rate_idx = tx->rate_idx;
-			info->control.retries[0].limit = tx->local->hw.max_altrate_tries;
-			tx->rate_idx = rsel.probe_idx;
-		} else if (info->control.retries[0].limit == 0)
-			info->control.retries[0].rate_idx = -1;
-
-		if (unlikely(tx->rate_idx < 0))
-			return TX_DROP;
-	} else
-		info->control.retries[0].rate_idx = -1;
+	sband = tx->local->hw.wiphy->bands[tx->channel->band];
 
-	if (tx->sdata->vif.bss_conf.use_cts_prot &&
-	    (tx->flags & IEEE80211_TX_FRAGMENTED) && (rsel.nonerp_idx >= 0)) {
-		tx->last_frag_rate_idx = tx->rate_idx;
-		if (rsel.probe_idx >= 0)
-			tx->flags &= ~IEEE80211_TX_PROBE_LAST_FRAG;
-		else
-			tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG;
-		tx->rate_idx = rsel.nonerp_idx;
-		info->tx_rate_idx = rsel.nonerp_idx;
-		info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE;
-	} else {
-		tx->last_frag_rate_idx = tx->rate_idx;
-		info->tx_rate_idx = tx->rate_idx;
+	len = min_t(int, tx->skb->len + FCS_LEN,
+			 tx->local->fragmentation_threshold);
+
+	/* set up the tx rate control struct we give the RC algo */
+	txrc.hw = local_to_hw(tx->local);
+	txrc.sband = sband;
+	txrc.bss_conf = &tx->sdata->vif.bss_conf;
+	txrc.skb = tx->skb;
+	txrc.reported_rate.idx = -1;
+	txrc.max_rate_idx = tx->sdata->max_ratectrl_rateidx;
+
+	/* set up RTS protection if desired */
+	if (tx->local->rts_threshold < IEEE80211_MAX_RTS_THRESHOLD &&
+	    len > tx->local->rts_threshold) {
+		txrc.rts = rts = true;
 	}
-	info->tx_rate_idx = tx->rate_idx;
 
-	return TX_CONTINUE;
-}
+	/*
+	 * Use short preamble if the BSS can handle it, but not for
+	 * management frames unless we know the receiver can handle
+	 * that -- the management frame might be to a station that
+	 * just wants a probe response.
+	 */
+	if (tx->sdata->vif.bss_conf.use_short_preamble &&
+	    (ieee80211_is_data(hdr->frame_control) ||
+	     (tx->sta && test_sta_flags(tx->sta, WLAN_STA_SHORT_PREAMBLE))))
+		txrc.short_preamble = short_preamble = true;
 
-static ieee80211_tx_result debug_noinline
-ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
-{
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
-	struct ieee80211_supported_band *sband;
 
-	sband = tx->local->hw.wiphy->bands[tx->channel->band];
+	rate_control_get_rate(tx->sdata, tx->sta, &txrc);
+
+	if (unlikely(info->control.rates[0].idx < 0))
+		return TX_DROP;
+
+	if (txrc.reported_rate.idx < 0)
+		txrc.reported_rate = info->control.rates[0];
 
 	if (tx->sta)
-		info->control.sta = &tx->sta->sta;
+		tx->sta->last_tx_rate = txrc.reported_rate;
 
-	if (!info->control.retry_limit) {
-		if (!is_multicast_ether_addr(hdr->addr1)) {
-			int len = min_t(int, tx->skb->len + FCS_LEN,
-					tx->local->fragmentation_threshold);
-			if (len > tx->local->rts_threshold
-			    && tx->local->rts_threshold <
-						IEEE80211_MAX_RTS_THRESHOLD) {
-				info->flags |= IEEE80211_TX_CTL_USE_RTS_CTS;
-				info->flags |=
-					IEEE80211_TX_CTL_LONG_RETRY_LIMIT;
-				info->control.retry_limit =
-					tx->local->hw.conf.long_frame_max_tx_count - 1;
-			} else {
-				info->control.retry_limit =
-					tx->local->hw.conf.short_frame_max_tx_count - 1;
-			}
-		} else {
-			info->control.retry_limit = 1;
-		}
-	}
+	if (unlikely(!info->control.rates[0].count))
+		info->control.rates[0].count = 1;
 
-	if (tx->flags & IEEE80211_TX_FRAGMENTED) {
-		/* Do not use multiple retry rates when sending fragmented
-		 * frames.
-		 * TODO: The last fragment could still use multiple retry
-		 * rates. */
-		info->control.retries[0].rate_idx = -1;
+	if (is_multicast_ether_addr(hdr->addr1)) {
+		/*
+		 * XXX: verify the rate is in the basic rateset
+		 */
+		return TX_CONTINUE;
 	}
 
-	/* Use CTS protection for unicast frames sent using extended rates if
-	 * there are associated non-ERP stations and RTS/CTS is not configured
-	 * for the frame. */
-	if ((tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) &&
-	    (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_ERP_G) &&
-	    (tx->flags & IEEE80211_TX_UNICAST) &&
-	    tx->sdata->vif.bss_conf.use_cts_prot &&
-	    !(info->flags & IEEE80211_TX_CTL_USE_RTS_CTS))
-		info->flags |= IEEE80211_TX_CTL_USE_CTS_PROTECT;
-
-	/* Transmit data frames using short preambles if the driver supports
-	 * short preambles at the selected rate and short preambles are
-	 * available on the network at the current point in time. */
-	if (ieee80211_is_data(hdr->frame_control) &&
-	    (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
-	    tx->sdata->vif.bss_conf.use_short_preamble &&
-	    (!tx->sta || test_sta_flags(tx->sta, WLAN_STA_SHORT_PREAMBLE))) {
-		info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE;
+	/*
+	 * set up the RTS/CTS rate as the fastest basic rate
+	 * that is not faster than the data rate
+	 *
+	 * XXX: Should this check all retry rates?
+	 */
+	if (!(info->control.rates[0].flags & IEEE80211_TX_RC_MCS)) {
+		s8 baserate = 0;
+
+		rate = &sband->bitrates[info->control.rates[0].idx];
+
+		for (i = 0; i < sband->n_bitrates; i++) {
+			/* must be a basic rate */
+			if (!(tx->sdata->vif.bss_conf.basic_rates & BIT(i)))
+				continue;
+			/* must not be faster than the data rate */
+			if (sband->bitrates[i].bitrate > rate->bitrate)
+				continue;
+			/* maximum */
+			if (sband->bitrates[baserate].bitrate <
+			     sband->bitrates[i].bitrate)
+				baserate = i;
+		}
+
+		info->control.rts_cts_rate_idx = baserate;
 	}
 
-	if ((info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) ||
-	    (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)) {
-		struct ieee80211_rate *rate;
-		s8 baserate = -1;
-		int idx;
+	for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
+		/*
+		 * make sure there's no valid rate following
+		 * an invalid one, just in case drivers don't
+		 * take the API seriously to stop at -1.
+		 */
+		if (inval) {
+			info->control.rates[i].idx = -1;
+			continue;
+		}
+		if (info->control.rates[i].idx < 0) {
+			inval = true;
+			continue;
+		}
 
-		/* Do not use multiple retry rates when using RTS/CTS */
-		info->control.retries[0].rate_idx = -1;
+		/*
+		 * For now assume MCS is already set up correctly, this
+		 * needs to be fixed.
+		 */
+		if (info->control.rates[i].flags & IEEE80211_TX_RC_MCS) {
+			WARN_ON(info->control.rates[i].idx > 76);
+			continue;
+		}
 
-		/* Use min(data rate, max base rate) as CTS/RTS rate */
-		rate = &sband->bitrates[tx->rate_idx];
+		/* set up RTS protection if desired */
+		if (rts)
+			info->control.rates[i].flags |=
+				IEEE80211_TX_RC_USE_RTS_CTS;
 
-		for (idx = 0; idx < sband->n_bitrates; idx++) {
-			if (sband->bitrates[idx].bitrate > rate->bitrate)
-				continue;
-			if (tx->sdata->vif.bss_conf.basic_rates & BIT(idx) &&
-			    (baserate < 0 ||
-			     (sband->bitrates[baserate].bitrate
-			      < sband->bitrates[idx].bitrate)))
-				baserate = idx;
+		/* RC is busted */
+		if (WARN_ON(info->control.rates[i].idx >=
+			    sband->n_bitrates)) {
+			info->control.rates[i].idx = -1;
+			continue;
 		}
 
-		if (baserate >= 0)
-			info->control.rts_cts_rate_idx = baserate;
-		else
-			info->control.rts_cts_rate_idx = 0;
+		rate = &sband->bitrates[info->control.rates[i].idx];
+
+		/* set up short preamble */
+		if (short_preamble &&
+		    rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
+			info->control.rates[i].flags |=
+				IEEE80211_TX_RC_USE_SHORT_PREAMBLE;
+
+		/* set up G protection */
+		if (!rts && tx->sdata->vif.bss_conf.use_cts_prot &&
+		    rate->flags & IEEE80211_RATE_ERP_G)
+			info->control.rates[i].flags |=
+				IEEE80211_TX_RC_USE_CTS_PROTECT;
 	}
 
+	return TX_CONTINUE;
+}
+
+static ieee80211_tx_result debug_noinline
+ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
+
 	if (tx->sta)
 		info->control.sta = &tx->sta->sta;
 
@@ -678,6 +699,7 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
 	left = payload_len - per_fragm;
 	for (i = 0; i < num_fragm - 1; i++) {
 		struct ieee80211_hdr *fhdr;
+		struct ieee80211_tx_info *info;
 		size_t copylen;
 
 		if (left <= 0)
@@ -692,20 +714,45 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
 				      IEEE80211_ENCRYPT_TAILROOM);
 		if (!frag)
 			goto fail;
+
 		/* Make sure that all fragments use the same priority so
 		 * that they end up using the same TX queue */
 		frag->priority = first->priority;
+
 		skb_reserve(frag, tx->local->tx_headroom +
 				  IEEE80211_ENCRYPT_HEADROOM);
+
+		/* copy TX information */
+		info = IEEE80211_SKB_CB(frag);
+		memcpy(info, first->cb, sizeof(frag->cb));
+
+		/* copy/fill in 802.11 header */
 		fhdr = (struct ieee80211_hdr *) skb_put(frag, hdrlen);
 		memcpy(fhdr, first->data, hdrlen);
-		if (i == num_fragm - 2)
-			fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS);
 		fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG));
+
+		if (i == num_fragm - 2) {
+			/* clear MOREFRAGS bit for the last fragment */
+			fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS);
+		} else {
+			/*
+			 * No multi-rate retries for fragmented frames, that
+			 * would completely throw off the NAV at other STAs.
+			 */
+			info->control.rates[1].idx = -1;
+			info->control.rates[2].idx = -1;
+			info->control.rates[3].idx = -1;
+			info->control.rates[4].idx = -1;
+			BUILD_BUG_ON(IEEE80211_TX_MAX_RATES != 5);
+			info->flags &= ~IEEE80211_TX_CTL_RATE_CTRL_PROBE;
+		}
+
+		/* copy data */
 		copylen = left > per_fragm ? per_fragm : left;
 		memcpy(skb_put(frag, copylen), pos, copylen);
-		memcpy(frag->cb, first->cb, sizeof(frag->cb));
+
 		skb_copy_queue_mapping(frag, first);
+
 		frag->do_not_encrypt = first->do_not_encrypt;
 
 		pos += copylen;
@@ -765,12 +812,10 @@ ieee80211_tx_h_calculate_duration(struct ieee80211_tx_data *tx)
 					      tx->extra_frag[0]->len);
 
 	for (i = 0; i < tx->num_extra_frag; i++) {
-		if (i + 1 < tx->num_extra_frag) {
+		if (i + 1 < tx->num_extra_frag)
 			next_len = tx->extra_frag[i + 1]->len;
-		} else {
+		else
 			next_len = 0;
-			tx->rate_idx = tx->last_frag_rate_idx;
-		}
 
 		hdr = (struct ieee80211_hdr *)tx->extra_frag[i]->data;
 		hdr->duration_id = ieee80211_duration(tx, 0, next_len);
@@ -823,7 +868,6 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
 		(struct ieee80211_radiotap_header *) skb->data;
 	struct ieee80211_supported_band *sband;
 	int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len);
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
 	sband = tx->local->hw.wiphy->bands[tx->channel->band];
 
@@ -837,8 +881,6 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
 	 */
 
 	while (!ret) {
-		int i, target_rate;
-
 		ret = ieee80211_radiotap_iterator_next(&iterator);
 
 		if (ret)
@@ -852,38 +894,6 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
 		 * get_unaligned((type *)iterator.this_arg) to dereference
 		 * iterator.this_arg for type "type" safely on all arches.
 		*/
-		case IEEE80211_RADIOTAP_RATE:
-			/*
-			 * radiotap rate u8 is in 500kbps units eg, 0x02=1Mbps
-			 * ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps
-			 */
-			target_rate = (*iterator.this_arg) * 5;
-			for (i = 0; i < sband->n_bitrates; i++) {
-				struct ieee80211_rate *r;
-
-				r = &sband->bitrates[i];
-
-				if (r->bitrate == target_rate) {
-					tx->rate_idx = i;
-					break;
-				}
-			}
-			break;
-
-		case IEEE80211_RADIOTAP_ANTENNA:
-			/*
-			 * radiotap uses 0 for 1st ant, mac80211 is 1 for
-			 * 1st ant
-			 */
-			info->antenna_sel_tx = (*iterator.this_arg) + 1;
-			break;
-
-#if 0
-		case IEEE80211_RADIOTAP_DBM_TX_POWER:
-			control->power_level = *iterator.this_arg;
-			break;
-#endif
-
 		case IEEE80211_RADIOTAP_FLAGS:
 			if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) {
 				/*
@@ -949,8 +959,6 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 	tx->local = local;
 	tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	tx->channel = local->hw.conf.channel;
-	tx->rate_idx = -1;
-	tx->last_frag_rate_idx = -1;
 	/*
 	 * Set this flag (used below to indicate "automatic fragmentation"),
 	 * it will be cleared/left by radiotap as desired.
@@ -1051,23 +1059,11 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
 			if (!tx->extra_frag[i])
 				continue;
 			info = IEEE80211_SKB_CB(tx->extra_frag[i]);
-			info->flags &= ~(IEEE80211_TX_CTL_USE_RTS_CTS |
-					 IEEE80211_TX_CTL_USE_CTS_PROTECT |
-					 IEEE80211_TX_CTL_CLEAR_PS_FILT |
+			info->flags &= ~(IEEE80211_TX_CTL_CLEAR_PS_FILT |
 					 IEEE80211_TX_CTL_FIRST_FRAGMENT);
 			if (netif_subqueue_stopped(local->mdev,
 						   tx->extra_frag[i]))
 				return IEEE80211_TX_FRAG_AGAIN;
-			if (i == tx->num_extra_frag) {
-				info->tx_rate_idx = tx->last_frag_rate_idx;
-
-				if (tx->flags & IEEE80211_TX_PROBE_LAST_FRAG)
-					info->flags |=
-						IEEE80211_TX_CTL_RATE_CTRL_PROBE;
-				else
-					info->flags &=
-						~IEEE80211_TX_CTL_RATE_CTRL_PROBE;
-			}
 
 			ret = local->ops->tx(local_to_hw(local),
 					    tx->extra_frag[i]);
@@ -1204,9 +1200,6 @@ retry:
 		store->skb = skb;
 		store->extra_frag = tx.extra_frag;
 		store->num_extra_frag = tx.num_extra_frag;
-		store->last_frag_rate_idx = tx.last_frag_rate_idx;
-		store->last_frag_rate_ctrl_probe =
-			!!(tx.flags & IEEE80211_TX_PROBE_LAST_FRAG);
 	}
  out:
 	rcu_read_unlock();
@@ -1763,10 +1756,7 @@ void ieee80211_tx_pending(unsigned long data)
 		store = &local->pending_packet[i];
 		tx.extra_frag = store->extra_frag;
 		tx.num_extra_frag = store->num_extra_frag;
-		tx.last_frag_rate_idx = store->last_frag_rate_idx;
 		tx.flags = 0;
-		if (store->last_frag_rate_ctrl_probe)
-			tx.flags |= IEEE80211_TX_PROBE_LAST_FRAG;
 		ret = __ieee80211_tx(local, store->skb, &tx);
 		if (ret) {
 			if (ret == IEEE80211_TX_FRAG_AGAIN)
@@ -1854,7 +1844,6 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 	struct ieee80211_sub_if_data *sdata = NULL;
 	struct ieee80211_if_ap *ap = NULL;
 	struct ieee80211_if_sta *ifsta = NULL;
-	struct rate_selection rsel;
 	struct beacon_data *beacon;
 	struct ieee80211_supported_band *sband;
 	enum ieee80211_band band = local->hw.conf.channel->band;
@@ -1958,32 +1947,23 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
 	skb->do_not_encrypt = 1;
 
 	info->band = band;
-	rate_control_get_rate(sdata, sband, NULL, skb, &rsel);
-
-	if (unlikely(rsel.rate_idx < 0)) {
-		if (net_ratelimit()) {
-			printk(KERN_DEBUG "%s: ieee80211_beacon_get: "
-			       "no rate found\n",
-			       wiphy_name(local->hw.wiphy));
-		}
-		dev_kfree_skb_any(skb);
-		skb = NULL;
-		goto out;
-	}
+	/*
+	 * XXX: For now, always use the lowest rate
+	 */
+	info->control.rates[0].idx = 0;
+	info->control.rates[0].count = 1;
+	info->control.rates[1].idx = -1;
+	info->control.rates[2].idx = -1;
+	info->control.rates[3].idx = -1;
+	info->control.rates[4].idx = -1;
+	BUILD_BUG_ON(IEEE80211_TX_MAX_RATES != 5);
 
 	info->control.vif = vif;
-	info->tx_rate_idx = rsel.rate_idx;
 
 	info->flags |= IEEE80211_TX_CTL_NO_ACK;
 	info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
 	info->flags |= IEEE80211_TX_CTL_ASSIGN_SEQ;
-	if (sdata->vif.bss_conf.use_short_preamble &&
-	    sband->bitrates[rsel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE)
-		info->flags |= IEEE80211_TX_CTL_SHORT_PREAMBLE;
-
-	info->control.retry_limit = 1;
-
-out:
+ out:
 	rcu_read_unlock();
 	return skb;
 }
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index f7e442f80a17..31d2e74a1bc0 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -636,8 +636,8 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev,
 
 	sta = sta_info_get(local, sdata->u.sta.bssid);
 
-	if (sta && sta->last_txrate_idx < sband->n_bitrates)
-		rate->value = sband->bitrates[sta->last_txrate_idx].bitrate;
+	if (sta && !(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS))
+		rate->value = sband->bitrates[sta->last_tx_rate.idx].bitrate;
 	else
 		rate->value = 0;
 
-- 
cgit v1.2.3


From 8b30b1fe368ab03049435884c11c5c50e4c4ef0b Mon Sep 17 00:00:00 2001
From: Sujith <Sujith.Manoharan@atheros.com>
Date: Fri, 24 Oct 2008 09:55:27 +0530
Subject: mac80211: Re-enable aggregation

Wireless HW without any dedicated queues for aggregation
do not need the ampdu_queues mechanism present right now
in mac80211. Since mac80211 is still incomplete wrt TX MQ
changes, do not allow aggregation sessions for drivers that
set ampdu_queues.

This is only an interim hack until Intel fixes the requeue issue.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: Luis Rodriguez <Luis.Rodriguez@Atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath9k/main.c       |  6 ++--
 drivers/net/wireless/iwlwifi/iwl-core.c |  3 +-
 include/linux/skbuff.h                  |  4 +++
 include/net/mac80211.h                  |  8 ++---
 net/core/skbuff.c                       |  1 +
 net/mac80211/ht.c                       | 60 +++++++++++++++++++--------------
 net/mac80211/main.c                     |  7 ++--
 net/mac80211/rx.c                       |  7 ++--
 net/mac80211/tx.c                       | 19 ++++++++---
 net/mac80211/wme.c                      | 24 ++++++-------
 10 files changed, 76 insertions(+), 63 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 795fed5cadfa..f6dc4c826044 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -953,10 +953,7 @@ static int ath_attach(u16 devid,
 			&sc->sbands[IEEE80211_BAND_5GHZ];
 	}
 
-	/* FIXME: Have to figure out proper hw init values later */
-
 	hw->queues = 4;
-	hw->ampdu_queues = 1;
 
 	/* Register rate control */
 	hw->rate_control_algorithm = "ath9k_rate_control";
@@ -1745,7 +1742,8 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
 		IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
 		IEEE80211_HW_SIGNAL_DBM |
-		IEEE80211_HW_NOISE_DBM;
+		IEEE80211_HW_NOISE_DBM |
+		IEEE80211_HW_AMPDU_AGGREGATION;
 
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_AP) |
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 20c7ff382914..ba05f5ddc6d0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -871,7 +871,8 @@ int iwl_setup_mac(struct iwl_priv *priv)
 
 	/* Tell mac80211 our characteristics */
 	hw->flags = IEEE80211_HW_SIGNAL_DBM |
-		    IEEE80211_HW_NOISE_DBM;
+		    IEEE80211_HW_NOISE_DBM |
+		    IEEE80211_HW_AMPDU_AGGREGATION;
 	hw->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_AP) |
 		BIT(NL80211_IFTYPE_STATION) |
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 487e34507b41..a01b6f84e3bc 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -250,6 +250,9 @@ typedef unsigned char *sk_buff_data_t;
  *	@tc_verd: traffic control verdict
  *	@ndisc_nodetype: router type (from link layer)
  *	@do_not_encrypt: set to prevent encryption of this frame
+ *	@requeue: set to indicate that the wireless core should attempt
+ *		a software retry on this frame if we failed to
+ *		receive an ACK for it
  *	@dma_cookie: a cookie to one of several possible DMA operations
  *		done by skb DMA functions
  *	@secmark: security marking
@@ -326,6 +329,7 @@ struct sk_buff {
 #endif
 #if defined(CONFIG_MAC80211) || defined(CONFIG_MAC80211_MODULE)
 	__u8			do_not_encrypt:1;
+	__u8			requeue:1;
 #endif
 	/* 0/13/14 bit hole */
 
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 16c895969e6e..bba96a203885 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -242,7 +242,6 @@ struct ieee80211_bss_conf {
  * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: internal to mac80211, can be
  *	set by rate control algorithms to indicate probe rate, will
  *	be cleared for fragmented frames (except on the last fragment)
- * @IEEE80211_TX_CTL_REQUEUE: REMOVE THIS
  */
 enum mac80211_tx_control_flags {
 	IEEE80211_TX_CTL_REQ_TX_STATUS		= BIT(0),
@@ -258,9 +257,6 @@ enum mac80211_tx_control_flags {
 	IEEE80211_TX_STAT_AMPDU			= BIT(10),
 	IEEE80211_TX_STAT_AMPDU_NO_BACK		= BIT(11),
 	IEEE80211_TX_CTL_RATE_CTRL_PROBE	= BIT(12),
-
-	/* XXX: remove this */
-	IEEE80211_TX_CTL_REQUEUE		= BIT(13),
 };
 
 enum mac80211_rate_control_flags {
@@ -847,6 +843,9 @@ enum ieee80211_tkip_key_type {
  * @IEEE80211_HW_SPECTRUM_MGMT:
  * 	Hardware supports spectrum management defined in 802.11h
  * 	Measurement, Channel Switch, Quieting, TPC
+ *
+ * @IEEE80211_HW_AMPDU_AGGREGATION:
+ *	Hardware supports 11n A-MPDU aggregation.
  */
 enum ieee80211_hw_flags {
 	IEEE80211_HW_RX_INCLUDES_FCS			= 1<<1,
@@ -858,6 +857,7 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_SIGNAL_DBM				= 1<<7,
 	IEEE80211_HW_NOISE_DBM				= 1<<8,
 	IEEE80211_HW_SPECTRUM_MGMT			= 1<<9,
+	IEEE80211_HW_AMPDU_AGGREGATION			= 1<<10,
 };
 
 /**
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index cdfe473181af..c4c8a33f3418 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -544,6 +544,7 @@ static struct sk_buff *__skb_clone(struct sk_buff *n, struct sk_buff *skb)
 	C(truesize);
 #if defined(CONFIG_MAC80211) || defined(CONFIG_MAC80211_MODULE)
 	C(do_not_encrypt);
+	C(requeue);
 #endif
 	atomic_set(&n->users, 1);
 
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 42c3e590df98..08009d4b7d6e 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -458,7 +458,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	u8 *state;
 	int ret;
 
-	if (tid >= STA_TID_NUM)
+	if ((tid >= STA_TID_NUM) || !(hw->flags & IEEE80211_HW_AMPDU_AGGREGATION))
 		return -EINVAL;
 
 #ifdef CONFIG_MAC80211_HT_DEBUG
@@ -515,17 +515,19 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 			(unsigned long)&sta->timer_to_tid[tid];
 	init_timer(&sta->ampdu_mlme.tid_tx[tid]->addba_resp_timer);
 
-	/* create a new queue for this aggregation */
-	ret = ieee80211_ht_agg_queue_add(local, sta, tid);
+	if (hw->ampdu_queues) {
+		/* 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) {
+		/* 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);
+			printk(KERN_DEBUG "BA request denied - "
+			       "queue unavailable for tid %d\n", tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
-		goto err_unlock_queue;
+			goto err_unlock_queue;
+		}
 	}
 	sdata = sta->sdata;
 
@@ -544,7 +546,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 		/* 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);
+		if (hw->ampdu_queues)
+			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);
@@ -554,7 +557,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 	}
 
 	/* Will put all the packets in the new SW queue */
-	ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
+	if (hw->ampdu_queues)
+		ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
 	spin_unlock_bh(&sta->lock);
 
 	/* send an addBA request */
@@ -622,7 +626,8 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
 	       ra, tid);
 #endif /* CONFIG_MAC80211_HT_DEBUG */
 
-	ieee80211_stop_queue(hw, sta->tid_to_tx_q[tid]);
+	if (hw->ampdu_queues)
+		ieee80211_stop_queue(hw, sta->tid_to_tx_q[tid]);
 
 	*state = HT_AGG_STATE_REQ_STOP_BA_MSK |
 		(initiator << HT_AGG_STATE_INITIATOR_SHIFT);
@@ -635,7 +640,8 @@ int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
 	if (ret) {
 		WARN_ON(ret != -EBUSY);
 		*state = HT_AGG_STATE_OPERATIONAL;
-		ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+		if (hw->ampdu_queues)
+			ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
 		goto stop_BA_exit;
 	}
 
@@ -691,7 +697,8 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
 #ifdef CONFIG_MAC80211_HT_DEBUG
 		printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
 #endif
-		ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
+		if (hw->ampdu_queues)
+			ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
 	}
 	spin_unlock_bh(&sta->lock);
 	rcu_read_unlock();
@@ -745,16 +752,18 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
 		ieee80211_send_delba(sta->sdata, ra, tid,
 			WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
 
-	agg_queue = sta->tid_to_tx_q[tid];
-
-	ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
-
-	/* We just requeued the all the frames that were in the
-	 * removed queue, and since we might miss a softirq we do
-	 * netif_schedule_queue.  ieee80211_wake_queue is not used
-	 * here as this queue is not necessarily stopped
-	 */
-	netif_schedule_queue(netdev_get_tx_queue(local->mdev, agg_queue));
+	if (hw->ampdu_queues) {
+		agg_queue = sta->tid_to_tx_q[tid];
+		ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
+
+		/* We just requeued the all the frames that were in the
+		 * removed queue, and since we might miss a softirq we do
+		 * netif_schedule_queue.  ieee80211_wake_queue is not used
+		 * here as this queue is not necessarily stopped
+		 */
+		netif_schedule_queue(netdev_get_tx_queue(local->mdev,
+							 agg_queue));
+	}
 	spin_lock_bh(&sta->lock);
 	*state = HT_AGG_STATE_IDLE;
 	sta->ampdu_mlme.addba_req_num[tid] = 0;
@@ -1011,7 +1020,8 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
 		*state |= HT_ADDBA_RECEIVED_MSK;
 		sta->ampdu_mlme.addba_req_num[tid] = 0;
 
-		if (*state == HT_AGG_STATE_OPERATIONAL)
+		if (*state == HT_AGG_STATE_OPERATIONAL &&
+		    local->hw.ampdu_queues)
 			ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
 
 		spin_unlock_bh(&sta->lock);
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 88c1975a97a5..fa0cc7a1e6b4 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -386,8 +386,6 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
 					    struct sta_info *sta,
 					    struct sk_buff *skb)
 {
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-
 	sta->tx_filtered_count++;
 
 	/*
@@ -434,10 +432,9 @@ static void ieee80211_handle_filtered_frame(struct ieee80211_local *local,
 		return;
 	}
 
-	if (!test_sta_flags(sta, WLAN_STA_PS) &&
-	    !(info->flags & IEEE80211_TX_CTL_REQUEUE)) {
+	if (!test_sta_flags(sta, WLAN_STA_PS) && !skb->requeue) {
 		/* Software retry the packet once */
-		info->flags |= IEEE80211_TX_CTL_REQUEUE;
+		skb->requeue = 1;
 		ieee80211_remove_tx_extra(local, sta->key, skb);
 		dev_queue_xmit(skb);
 		return;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index c4c95f1db605..648a1d0e6c82 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -669,7 +669,6 @@ static int ap_sta_ps_end(struct sta_info *sta)
 	struct ieee80211_local *local = sdata->local;
 	struct sk_buff *skb;
 	int sent = 0;
-	struct ieee80211_tx_info *info;
 
 	atomic_dec(&sdata->bss->num_sta_ps);
 
@@ -685,13 +684,11 @@ static int ap_sta_ps_end(struct sta_info *sta)
 
 	/* Send all buffered frames to the station */
 	while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
-		info = IEEE80211_SKB_CB(skb);
 		sent++;
-		info->flags |= IEEE80211_TX_CTL_REQUEUE;
+		skb->requeue = 1;
 		dev_queue_xmit(skb);
 	}
 	while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
-		info = IEEE80211_SKB_CB(skb);
 		local->total_ps_buffered--;
 		sent++;
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
@@ -699,7 +696,7 @@ static int ap_sta_ps_end(struct sta_info *sta)
 		       "since STA not sleeping anymore\n", sdata->dev->name,
 		       sta->sta.addr, sta->sta.aid);
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-		info->flags |= IEEE80211_TX_CTL_REQUEUE;
+		skb->requeue = 1;
 		dev_queue_xmit(skb);
 	}
 
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 541e3e64493d..d6392af9cd20 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -661,6 +661,7 @@ ieee80211_tx_h_sequence(struct ieee80211_tx_data *tx)
 static ieee80211_tx_result debug_noinline
 ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
 {
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
 	size_t hdrlen, per_fragm, num_fragm, payload_len, left;
 	struct sk_buff **frags, *first, *frag;
@@ -677,9 +678,7 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
 	 * This scenario is handled in __ieee80211_tx_prepare but extra
 	 * caution taken here as fragmented ampdu may cause Tx stop.
 	 */
-	if (WARN_ON(tx->flags & IEEE80211_TX_CTL_AMPDU ||
-		    skb_get_queue_mapping(tx->skb) >=
-			ieee80211_num_regular_queues(&tx->local->hw)))
+	if (WARN_ON(info->flags & IEEE80211_TX_CTL_AMPDU))
 		return TX_DROP;
 
 	first = tx->skb;
@@ -951,7 +950,8 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 	struct ieee80211_sub_if_data *sdata;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
-	int hdrlen;
+	int hdrlen, tid;
+	u8 *qc, *state;
 
 	memset(tx, 0, sizeof(*tx));
 	tx->skb = skb;
@@ -982,6 +982,15 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 
 	tx->sta = sta_info_get(local, hdr->addr1);
 
+	if (tx->sta && ieee80211_is_data_qos(hdr->frame_control)) {
+		qc = ieee80211_get_qos_ctl(hdr);
+		tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
+
+		state = &tx->sta->ampdu_mlme.tid_state_tx[tid];
+		if (*state == HT_AGG_STATE_OPERATIONAL)
+			info->flags |= IEEE80211_TX_CTL_AMPDU;
+	}
+
 	if (is_multicast_ether_addr(hdr->addr1)) {
 		tx->flags &= ~IEEE80211_TX_UNICAST;
 		info->flags |= IEEE80211_TX_CTL_NO_ACK;
@@ -1172,7 +1181,7 @@ retry:
 		 * queues, there's no reason for a driver to reject
 		 * a frame there, warn and drop it.
 		 */
-		if (WARN_ON(queue >= ieee80211_num_regular_queues(&local->hw)))
+		if (WARN_ON(info->flags & IEEE80211_TX_CTL_AMPDU))
 			goto drop;
 
 		store = &local->pending_packet[queue];
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index d27ef7f2d4a7..ac71b38f7cb5 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -114,8 +114,8 @@ u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
 {
 	struct ieee80211_master_priv *mpriv = netdev_priv(dev);
 	struct ieee80211_local *local = mpriv->local;
+	struct ieee80211_hw *hw = &local->hw;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct sta_info *sta;
 	u16 queue;
 	u8 tid;
@@ -124,21 +124,19 @@ u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
 	if (unlikely(queue >= local->hw.queues))
 		queue = local->hw.queues - 1;
 
-	if (info->flags & IEEE80211_TX_CTL_REQUEUE) {
+	if (skb->requeue) {
+		if (!hw->ampdu_queues)
+			return queue;
+
 		rcu_read_lock();
 		sta = sta_info_get(local, hdr->addr1);
 		tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
 		if (sta) {
-			struct ieee80211_hw *hw = &local->hw;
 			int ampdu_queue = sta->tid_to_tx_q[tid];
 
 			if ((ampdu_queue < ieee80211_num_queues(hw)) &&
-			    test_bit(ampdu_queue, local->queue_pool)) {
+			    test_bit(ampdu_queue, local->queue_pool))
 				queue = ampdu_queue;
-				info->flags |= IEEE80211_TX_CTL_AMPDU;
-			} else {
-				info->flags &= ~IEEE80211_TX_CTL_AMPDU;
-			}
 		}
 		rcu_read_unlock();
 
@@ -159,20 +157,18 @@ u16 ieee80211_select_queue(struct net_device *dev, struct sk_buff *skb)
 		*p++ = ack_policy | tid;
 		*p = 0;
 
+		if (!hw->ampdu_queues)
+			return queue;
+
 		rcu_read_lock();
 
 		sta = sta_info_get(local, hdr->addr1);
 		if (sta) {
 			int ampdu_queue = sta->tid_to_tx_q[tid];
-			struct ieee80211_hw *hw = &local->hw;
 
 			if ((ampdu_queue < ieee80211_num_queues(hw)) &&
-			    test_bit(ampdu_queue, local->queue_pool)) {
+			    test_bit(ampdu_queue, local->queue_pool))
 				queue = ampdu_queue;
-				info->flags |= IEEE80211_TX_CTL_AMPDU;
-			} else {
-				info->flags &= ~IEEE80211_TX_CTL_AMPDU;
-			}
 		}
 
 		rcu_read_unlock();
-- 
cgit v1.2.3


From 41bb73eeac5ff5fb217257ba33b654747b3abf11 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Wed, 29 Oct 2008 01:09:37 +0100
Subject: mac80211: remove SSID driver code

Remove the SSID from the driver API since now there is no
driver that requires knowing the SSID and I think it's
unlikely that any hardware design that does require the
SSID will play well with mac80211.

This also removes support for setting the SSID in master
mode which will require a patch to hostapd to not try.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn.c      |  7 -------
 drivers/net/wireless/iwlwifi/iwl3945-base.c |  7 -------
 include/net/mac80211.h                      | 11 +----------
 net/mac80211/ieee80211_i.h                  |  3 ---
 net/mac80211/main.c                         | 15 +++------------
 net/mac80211/mlme.c                         | 14 --------------
 net/mac80211/wext.c                         | 16 ----------------
 7 files changed, 4 insertions(+), 69 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index ce3141f07f35..ad186e134dec 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2957,13 +2957,6 @@ static int iwl4965_mac_config_interface(struct ieee80211_hw *hw,
 			return rc;
 	}
 
-	if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
-	    (!conf->ssid_len)) {
-		IWL_DEBUG_MAC80211
-		    ("Leaving in AP mode because HostAPD is not ready.\n");
-		return 0;
-	}
-
 	if (!iwl_is_alive(priv))
 		return -EAGAIN;
 
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 0c2d778a9ff7..47881be9ba44 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -6743,13 +6743,6 @@ static int iwl3945_mac_config_interface(struct ieee80211_hw *hw,
 
 	/* XXX: this MUST use conf->mac_addr */
 
-	if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
-	    (!conf->ssid_len)) {
-		IWL_DEBUG_MAC80211
-		    ("Leaving in AP mode because HostAPD is not ready.\n");
-		return 0;
-	}
-
 	if (!iwl3945_is_alive(priv))
 		return -EAGAIN;
 
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 0b983bed3829..af2ec6f9beb9 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -616,14 +616,12 @@ struct ieee80211_if_init_conf {
  * enum ieee80211_if_conf_change - interface config change flags
  *
  * @IEEE80211_IFCC_BSSID: The BSSID changed.
- * @IEEE80211_IFCC_SSID: The SSID changed.
  * @IEEE80211_IFCC_BEACON: The beacon for this interface changed
  *	(currently AP and MESH only), use ieee80211_beacon_get().
  */
 enum ieee80211_if_conf_change {
 	IEEE80211_IFCC_BSSID	= BIT(0),
-	IEEE80211_IFCC_SSID	= BIT(1),
-	IEEE80211_IFCC_BEACON	= BIT(2),
+	IEEE80211_IFCC_BEACON	= BIT(1),
 };
 
 /**
@@ -631,11 +629,6 @@ enum ieee80211_if_conf_change {
  *
  * @changed: parameters that have changed, see &enum ieee80211_if_conf_change.
  * @bssid: BSSID of the network we are associated to/creating.
- * @ssid: used (together with @ssid_len) by drivers for hardware that
- *	generate beacons independently. The pointer is valid only during the
- *	config_interface() call, so copy the value somewhere if you need
- *	it.
- * @ssid_len: length of the @ssid field.
  *
  * This structure is passed to the config_interface() callback of
  * &struct ieee80211_hw.
@@ -643,8 +636,6 @@ enum ieee80211_if_conf_change {
 struct ieee80211_if_conf {
 	u32 changed;
 	u8 *bssid;
-	u8 *ssid;
-	size_t ssid_len;
 };
 
 /**
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 2c91108e3901..155a20410017 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -212,9 +212,6 @@ struct ieee80211_if_ap {
 
 	struct list_head vlans;
 
-	u8 ssid[IEEE80211_MAX_SSID_LEN];
-	size_t ssid_len;
-
 	/* yes, this looks ugly, but guarantees that we can later use
 	 * bitmap_empty :)
 	 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index fa0cc7a1e6b4..d631dc96c323 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -171,19 +171,13 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
 	conf.changed = changed;
 
 	if (sdata->vif.type == NL80211_IFTYPE_STATION ||
-	    sdata->vif.type == NL80211_IFTYPE_ADHOC) {
+	    sdata->vif.type == NL80211_IFTYPE_ADHOC)
 		conf.bssid = sdata->u.sta.bssid;
-		conf.ssid = sdata->u.sta.ssid;
-		conf.ssid_len = sdata->u.sta.ssid_len;
-	} else if (sdata->vif.type == NL80211_IFTYPE_AP) {
+	else if (sdata->vif.type == NL80211_IFTYPE_AP)
 		conf.bssid = sdata->dev->dev_addr;
-		conf.ssid = sdata->u.ap.ssid;
-		conf.ssid_len = sdata->u.ap.ssid_len;
-	} else if (ieee80211_vif_is_mesh(&sdata->vif)) {
+	else if (ieee80211_vif_is_mesh(&sdata->vif)) {
 		u8 zero[ETH_ALEN] = { 0 };
 		conf.bssid = zero;
-		conf.ssid = zero;
-		conf.ssid_len = 0;
 	} else {
 		WARN_ON(1);
 		return -EINVAL;
@@ -192,9 +186,6 @@ int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed)
 	if (WARN_ON(!conf.bssid && (changed & IEEE80211_IFCC_BSSID)))
 		return -EINVAL;
 
-	if (WARN_ON(!conf.ssid && (changed & IEEE80211_IFCC_SSID)))
-		return -EINVAL;
-
 	return local->ops->config_interface(local_to_hw(local),
 					    &sdata->vif, &conf);
 }
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 9e6c75abc922..708eb4502ed7 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2416,7 +2416,6 @@ void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
 int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len)
 {
 	struct ieee80211_if_sta *ifsta;
-	int res;
 
 	if (len > IEEE80211_MAX_SSID_LEN)
 		return -EINVAL;
@@ -2428,19 +2427,6 @@ int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size
 		memcpy(ifsta->ssid, ssid, len);
 		ifsta->ssid_len = len;
 		ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
-
-		res = 0;
-		/*
-		 * Hack! MLME code needs to be cleaned up to have different
-		 * entry points for configuration and internal selection change
-		 */
-		if (netif_running(sdata->dev))
-			res = ieee80211_if_config(sdata, IEEE80211_IFCC_SSID);
-		if (res) {
-			printk(KERN_DEBUG "%s: Failed to config new SSID to "
-			       "the low-level driver\n", sdata->dev->name);
-			return res;
-		}
 	}
 
 	if (len)
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 231cab57351f..63f36e9d1af8 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -407,13 +407,6 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
 		return 0;
 	}
 
-	if (sdata->vif.type == NL80211_IFTYPE_AP) {
-		memcpy(sdata->u.ap.ssid, ssid, len);
-		memset(sdata->u.ap.ssid + len, 0,
-		       IEEE80211_MAX_SSID_LEN - len);
-		sdata->u.ap.ssid_len = len;
-		return ieee80211_if_config(sdata, IEEE80211_IFCC_SSID);
-	}
 	return -EOPNOTSUPP;
 }
 
@@ -437,15 +430,6 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev,
 		return res;
 	}
 
-	if (sdata->vif.type == NL80211_IFTYPE_AP) {
-		len = sdata->u.ap.ssid_len;
-		if (len > IW_ESSID_MAX_SIZE)
-			len = IW_ESSID_MAX_SIZE;
-		memcpy(ssid, sdata->u.ap.ssid, len);
-		data->length = len;
-		data->flags = 1;
-		return 0;
-	}
 	return -EOPNOTSUPP;
 }
 
-- 
cgit v1.2.3


From 4ada424db196c78746fec255d493cacb1c9feddf Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Fri, 14 Nov 2008 14:44:22 -0800
Subject: mac80211: don't assume driver has been attached on registration

mac80211's ieee80211_register_hw() is often called within the
probe path so it cannot assume the device's driver structure
has been attached yet so to create a workqueue instead of
using driver->name use the wiphy's phy%d name. The name doesn't
really matter anyway.

This should fix sporadic oopses found when we race to beat the
driver pointer setting. Not even sure how this was working properly.

http://www.kerneloops.org/search.php?search=ieee80211_register_hw

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/main.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index d631dc96c323..cec9b6d3e1ce 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -722,7 +722,6 @@ EXPORT_SYMBOL(ieee80211_alloc_hw);
 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;
@@ -787,8 +786,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 	mdev->header_ops = &ieee80211_header_ops;
 	mdev->set_multicast_list = ieee80211_master_set_multicast_list;
 
-	name = wiphy_dev(local->hw.wiphy)->driver->name;
-	local->hw.workqueue = create_freezeable_workqueue(name);
+	local->hw.workqueue =
+		create_freezeable_workqueue(wiphy_name(local->hw.wiphy));
 	if (!local->hw.workqueue) {
 		result = -ENOMEM;
 		goto fail_workqueue;
-- 
cgit v1.2.3


From 72bdcf34380917260da41e3c49e10edee04bc5cd Mon Sep 17 00:00:00 2001
From: Jouni Malinen <j@w1.fi>
Date: Wed, 26 Nov 2008 16:15:24 +0200
Subject: nl80211: Add frequency configuration (including HT40)

This patch adds new NL80211_CMD_SET_WIPHY attributes
NL80211_ATTR_WIPHY_FREQ and NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET to allow
userspace to set the operating channel (e.g., hostapd for AP mode).

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/linux/nl80211.h    | 23 +++++++++++++++++--
 include/net/cfg80211.h     |  9 ++++++++
 include/net/mac80211.h     |  3 +++
 net/mac80211/cfg.c         | 13 +++++++++++
 net/mac80211/ieee80211_i.h |  1 +
 net/mac80211/main.c        | 30 ++++++++++++++++++++----
 net/mac80211/util.c        |  1 +
 net/wireless/nl80211.c     | 57 ++++++++++++++++++++++++++++++++++++++++++++++
 8 files changed, 131 insertions(+), 6 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index e08c8bcfb78d..92f79d2bdd8c 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -26,8 +26,9 @@
  * @NL80211_CMD_GET_WIPHY: request information about a wiphy or dump request
  *	to get a list of all present wiphys.
  * @NL80211_CMD_SET_WIPHY: set wiphy parameters, needs %NL80211_ATTR_WIPHY or
- *	%NL80211_ATTR_IFINDEX; can be used to set %NL80211_ATTR_WIPHY_NAME
- *	and/or %NL80211_ATTR_WIPHY_TXQ_PARAMS.
+ *	%NL80211_ATTR_IFINDEX; can be used to set %NL80211_ATTR_WIPHY_NAME,
+ *	%NL80211_ATTR_WIPHY_TXQ_PARAMS, %NL80211_ATTR_WIPHY_FREQ, and/or
+ *	%NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET.
  * @NL80211_CMD_NEW_WIPHY: Newly created wiphy, response to get request
  *	or rename notification. Has attributes %NL80211_ATTR_WIPHY and
  *	%NL80211_ATTR_WIPHY_NAME.
@@ -180,6 +181,14 @@ enum nl80211_commands {
  *	/sys/class/ieee80211/<phyname>/index
  * @NL80211_ATTR_WIPHY_NAME: wiphy name (used for renaming)
  * @NL80211_ATTR_WIPHY_TXQ_PARAMS: a nested array of TX queue parameters
+ * @NL80211_ATTR_WIPHY_FREQ: frequency of the selected channel in MHz
+ * @NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET: included with NL80211_ATTR_WIPHY_FREQ
+ *	if HT20 or HT40 are allowed (i.e., 802.11n disabled if not included):
+ *	NL80211_SEC_CHAN_NO_HT = HT not allowed (i.e., same as not including
+ *		this attribute)
+ *	NL80211_SEC_CHAN_DISABLED = HT20 only
+ *	NL80211_SEC_CHAN_BELOW = secondary channel is below the primary channel
+ *	NL80211_SEC_CHAN_ABOVE = secondary channel is above the primary channel
  *
  * @NL80211_ATTR_IFINDEX: network interface index of the device to operate on
  * @NL80211_ATTR_IFNAME: network interface name
@@ -315,6 +324,8 @@ enum nl80211_attrs {
 	NL80211_ATTR_BSS_BASIC_RATES,
 
 	NL80211_ATTR_WIPHY_TXQ_PARAMS,
+	NL80211_ATTR_WIPHY_FREQ,
+	NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET,
 
 	/* add attributes here, update the policy in nl80211.c */
 
@@ -329,6 +340,8 @@ enum nl80211_attrs {
 #define NL80211_ATTR_HT_CAPABILITY NL80211_ATTR_HT_CAPABILITY
 #define NL80211_ATTR_BSS_BASIC_RATES NL80211_ATTR_BSS_BASIC_RATES
 #define NL80211_ATTR_WIPHY_TXQ_PARAMS NL80211_ATTR_WIPHY_TXQ_PARAMS
+#define NL80211_ATTR_WIPHY_FREQ NL80211_ATTR_WIPHY_FREQ
+#define NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET
 
 #define NL80211_MAX_SUPP_RATES			32
 #define NL80211_MAX_SUPP_REG_RULES		32
@@ -742,4 +755,10 @@ enum nl80211_txq_q {
 	NL80211_TXQ_Q_BK
 };
 
+enum nl80211_sec_chan_offset {
+	NL80211_SEC_CHAN_NO_HT /* No HT */,
+	NL80211_SEC_CHAN_DISABLED /* HT20 only */,
+	NL80211_SEC_CHAN_BELOW /* HT40- */,
+	NL80211_SEC_CHAN_ABOVE /* HT40+ */
+};
 #endif /* __LINUX_NL80211_H */
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 1d57835d73f2..53b06f6c62ca 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -392,6 +392,9 @@ struct ieee80211_txq_params {
 /* from net/wireless.h */
 struct wiphy;
 
+/* from net/ieee80211.h */
+struct ieee80211_channel;
+
 /**
  * struct cfg80211_ops - backend description for wireless configuration
  *
@@ -450,6 +453,8 @@ struct wiphy;
  * @change_bss: Modify parameters for a given BSS.
  *
  * @set_txq_params: Set TX queue parameters
+ *
+ * @set_channel: Set channel
  */
 struct cfg80211_ops {
 	int	(*add_virtual_intf)(struct wiphy *wiphy, char *name,
@@ -513,6 +518,10 @@ struct cfg80211_ops {
 
 	int	(*set_txq_params)(struct wiphy *wiphy,
 				  struct ieee80211_txq_params *params);
+
+	int	(*set_channel)(struct wiphy *wiphy,
+			       struct ieee80211_channel *chan,
+			       enum nl80211_sec_chan_offset);
 };
 
 #endif /* __NET_CFG80211_H */
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 6a1d4ea18186..6e823cc6a4b1 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -507,6 +507,9 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
 
 struct ieee80211_ht_conf {
 	bool enabled;
+	int sec_chan_offset; /* 0 = HT40 disabled; -1 = HT40 enabled, secondary
+			      * channel below primary; 1 = HT40 enabled,
+			      * secondary channel above primary */
 };
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 16423f94801b..7a7a6c176dc5 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1095,6 +1095,18 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
 	return 0;
 }
 
+static int ieee80211_set_channel(struct wiphy *wiphy,
+				 struct ieee80211_channel *chan,
+				 enum nl80211_sec_chan_offset sec_chan_offset)
+{
+	struct ieee80211_local *local = wiphy_priv(wiphy);
+
+	local->oper_channel = chan;
+	local->oper_sec_chan_offset = sec_chan_offset;
+
+	return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
+}
+
 struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -1122,4 +1134,5 @@ struct cfg80211_ops mac80211_config_ops = {
 #endif
 	.change_bss = ieee80211_change_bss,
 	.set_txq_params = ieee80211_set_txq_params,
+	.set_channel = ieee80211_set_channel,
 };
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 155a20410017..527205f8c1a1 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -626,6 +626,7 @@ struct ieee80211_local {
 	struct delayed_work scan_work;
 	struct ieee80211_sub_if_data *scan_sdata;
 	struct ieee80211_channel *oper_channel, *scan_channel;
+	enum nl80211_sec_chan_offset oper_sec_chan_offset;
 	u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
 	size_t scan_ssid_len;
 	struct list_head bss_list;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index cec9b6d3e1ce..29c3ecf7e914 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -195,20 +195,42 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 	struct ieee80211_channel *chan;
 	int ret = 0;
 	int power;
+	enum nl80211_sec_chan_offset sec_chan_offset;
 
 	might_sleep();
 
-	if (local->sw_scanning)
+	if (local->sw_scanning) {
 		chan = local->scan_channel;
-	else
+		sec_chan_offset = NL80211_SEC_CHAN_NO_HT;
+	} else {
 		chan = local->oper_channel;
+		sec_chan_offset = local->oper_sec_chan_offset;
+	}
 
-	if (chan != local->hw.conf.channel) {
+	if (chan != local->hw.conf.channel ||
+	    sec_chan_offset != local->hw.conf.ht.sec_chan_offset) {
 		local->hw.conf.channel = chan;
+		switch (sec_chan_offset) {
+		case NL80211_SEC_CHAN_NO_HT:
+			local->hw.conf.ht.enabled = false;
+			local->hw.conf.ht.sec_chan_offset = 0;
+			break;
+		case NL80211_SEC_CHAN_DISABLED:
+			local->hw.conf.ht.enabled = true;
+			local->hw.conf.ht.sec_chan_offset = 0;
+			break;
+		case NL80211_SEC_CHAN_BELOW:
+			local->hw.conf.ht.enabled = true;
+			local->hw.conf.ht.sec_chan_offset = -1;
+			break;
+		case NL80211_SEC_CHAN_ABOVE:
+			local->hw.conf.ht.enabled = true;
+			local->hw.conf.ht.sec_chan_offset = 1;
+			break;
+		}
 		changed |= IEEE80211_CONF_CHANGE_CHANNEL;
 	}
 
-
 	if (!local->hw.conf.power_level)
 		power = chan->max_power;
 	else
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 0f841317c7e9..505d68f344ce 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -641,6 +641,7 @@ int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freqMHz)
 		    chan->flags & IEEE80211_CHAN_NO_IBSS)
 			return ret;
 		local->oper_channel = chan;
+		local->oper_sec_chan_offset = NL80211_SEC_CHAN_NO_HT;
 
 		if (local->sw_scanning || local->hw_scanning)
 			ret = 0;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index c9141e3df9ba..9caee6022e3f 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -59,6 +59,8 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
 	[NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
 				      .len = BUS_ID_SIZE-1 },
 	[NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
+	[NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
+	[NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET] = { .type = NLA_U32 },
 
 	[NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
 	[NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
@@ -359,6 +361,61 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 		}
 	}
 
+	if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
+		enum nl80211_sec_chan_offset sec_chan_offset =
+			NL80211_SEC_CHAN_NO_HT;
+		struct ieee80211_channel *chan;
+		u32 freq, sec_freq;
+
+		if (!rdev->ops->set_channel) {
+			result = -EOPNOTSUPP;
+			goto bad_res;
+		}
+
+		if (info->attrs[NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET]) {
+			sec_chan_offset = nla_get_u32(
+				info->attrs[
+					NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET]);
+			if (sec_chan_offset != NL80211_SEC_CHAN_NO_HT &&
+			    sec_chan_offset != NL80211_SEC_CHAN_DISABLED &&
+			    sec_chan_offset != NL80211_SEC_CHAN_BELOW &&
+			    sec_chan_offset != NL80211_SEC_CHAN_ABOVE) {
+				result = -EINVAL;
+				goto bad_res;
+			}
+		}
+
+		freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
+		chan = ieee80211_get_channel(&rdev->wiphy, freq);
+		if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
+			/* Primary channel not allowed */
+			result = -EINVAL;
+			goto bad_res;
+		}
+		if (sec_chan_offset == NL80211_SEC_CHAN_BELOW)
+			sec_freq = freq - 20;
+		else if (sec_chan_offset == NL80211_SEC_CHAN_ABOVE)
+			sec_freq = freq + 20;
+		else
+			sec_freq = 0;
+
+		if (sec_freq) {
+			struct ieee80211_channel *schan;
+			schan = ieee80211_get_channel(&rdev->wiphy, sec_freq);
+			if (!schan || schan->flags & IEEE80211_CHAN_DISABLED) {
+				/* Secondary channel not allowed */
+				result = -EINVAL;
+				goto bad_res;
+			}
+		}
+
+		result = rdev->ops->set_channel(&rdev->wiphy, chan,
+						sec_chan_offset);
+		if (result)
+			goto bad_res;
+	}
+
+
 bad_res:
 	cfg80211_put_dev(rdev);
 	return result;
-- 
cgit v1.2.3


From 447107fb32d75425c95a33f58e6b4b760b470092 Mon Sep 17 00:00:00 2001
From: Reinette Chatre <reinette.chatre@intel.com>
Date: Thu, 4 Dec 2008 14:49:08 -0800
Subject: mac80211: remove WARN_ON() from ieee80211_hw_config

ieee80211_hw_config can return an error when the hardware
has rfkill enabled. A WARN_ON() is too harsh for this
failure as it is a valid scenario. Only comment this warning
as we would like to have it back when rfkill is integrated into
mac80211.

Also reintroduce propagation of error if ieee80211_hw_config fails
in ieee80211_config_beacon.

This patch partially reverts patch:
5f0387fc3337ca26f0745f945f550f0c3734960f
"mac80211: clean up ieee80211_hw_config errors"

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/cfg.c  |  6 ++++--
 net/mac80211/main.c | 12 +++++++++++-
 2 files changed, 15 insertions(+), 3 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 7a7a6c176dc5..7912eb14eca0 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -396,8 +396,10 @@ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 	 */
 	if (params->interval) {
 		sdata->local->hw.conf.beacon_int = params->interval;
-		ieee80211_hw_config(sdata->local,
-				    IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
+		err = ieee80211_hw_config(sdata->local,
+					IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
+		if (err < 0)
+			return err;
 		/*
 		 * We updated some parameter so if below bails out
 		 * it's not an error.
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 29c3ecf7e914..df7e9a810b88 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -243,10 +243,20 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 	if (changed && local->open_count) {
 		ret = local->ops->config(local_to_hw(local), changed);
 		/*
+		 * Goal:
 		 * HW reconfiguration should never fail, the driver has told
 		 * us what it can support so it should live up to that promise.
+		 *
+		 * Current status:
+		 * rfkill is not integrated with mac80211 and a
+		 * configuration command can thus fail if hardware rfkill
+		 * is enabled
+		 *
+		 * FIXME: integrate rfkill with mac80211 and then add this
+		 * WARN_ON() back
+		 *
 		 */
-		WARN_ON(ret);
+		/* WARN_ON(ret); */
 	}
 
 	return ret;
-- 
cgit v1.2.3


From 8dffff216fcac4f79078478085e86d68db64922e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 9 Dec 2008 00:10:30 +0100
Subject: mac80211: only create default STA interface if supported

Drivers will support this, obviously, but this forces them to
set it up properly.

(This includes the fix posted as "mac80211: fix ifmodes check" and
tested in wireless-testing by Hin-Tak and others. -- JWL)

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Reported-by: Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: Hin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/main.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index df7e9a810b88..6d8710327d14 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -886,12 +886,14 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
 	local->mdev->select_queue = ieee80211_select_queue;
 
-	/* add one default STA interface */
-	result = ieee80211_if_add(local, "wlan%d", NULL,
-				  NL80211_IFTYPE_STATION, NULL);
-	if (result)
-		printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
-		       wiphy_name(local->hw.wiphy));
+	/* add one default STA interface if supported */
+	if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) {
+		result = ieee80211_if_add(local, "wlan%d", NULL,
+					  NL80211_IFTYPE_STATION, NULL);
+		if (result)
+			printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
+			       wiphy_name(local->hw.wiphy));
+	}
 
 	rtnl_unlock();
 
-- 
cgit v1.2.3


From 094d05dc32fc2930e381189a942016e5561775d9 Mon Sep 17 00:00:00 2001
From: Sujith <Sujith.Manoharan@atheros.com>
Date: Fri, 12 Dec 2008 11:57:43 +0530
Subject: mac80211: Fix HT channel selection

HT management is done differently for AP and STA modes, unify
to just the ->config() callback since HT is fundamentally a
PHY property and cannot be per-BSS.

Rename enum nl80211_sec_chan_offset as nl80211_channel_type to denote
the channel type ( NO_HT, HT20, HT40+, HT40- ).

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath9k/main.c      | 123 ++++++++-------------------------
 drivers/net/wireless/iwlwifi/iwl-agn.c |  18 +++--
 drivers/net/wireless/mac80211_hwsim.c  |   6 +-
 include/linux/nl80211.h                |  22 +++---
 include/net/cfg80211.h                 |   2 +-
 include/net/mac80211.h                 |   9 +--
 net/mac80211/cfg.c                     |   4 +-
 net/mac80211/ht.c                      |  35 +++++++---
 net/mac80211/ieee80211_i.h             |   2 +-
 net/mac80211/main.c                    |  27 +++-----
 net/mac80211/mlme.c                    |   1 +
 net/mac80211/util.c                    |   2 +-
 net/wireless/nl80211.c                 |  27 ++++----
 13 files changed, 109 insertions(+), 169 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 02e1771bb274..e22fea18bad6 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -623,37 +623,40 @@ static int ath_get_channel(struct ath_softc *sc,
 	return -1;
 }
 
-/* ext_chan_offset: (-1, 0, 1) (below, none, above) */
-
 static u32 ath_get_extchanmode(struct ath_softc *sc,
 			       struct ieee80211_channel *chan,
-			       int ext_chan_offset,
-			       enum ath9k_ht_macmode tx_chan_width)
+			       enum nl80211_channel_type channel_type)
 {
 	u32 chanmode = 0;
 
 	switch (chan->band) {
 	case IEEE80211_BAND_2GHZ:
-		if ((ext_chan_offset == 0) &&
-		    (tx_chan_width == ATH9K_HT_MACMODE_20))
+		switch(channel_type) {
+		case NL80211_CHAN_NO_HT:
+		case NL80211_CHAN_HT20:
 			chanmode = CHANNEL_G_HT20;
-		if ((ext_chan_offset == 1) &&
-		    (tx_chan_width == ATH9K_HT_MACMODE_2040))
+			break;
+		case NL80211_CHAN_HT40PLUS:
 			chanmode = CHANNEL_G_HT40PLUS;
-		if ((ext_chan_offset == -1) &&
-		    (tx_chan_width == ATH9K_HT_MACMODE_2040))
+			break;
+		case NL80211_CHAN_HT40MINUS:
 			chanmode = CHANNEL_G_HT40MINUS;
+			break;
+		}
 		break;
 	case IEEE80211_BAND_5GHZ:
-		if ((ext_chan_offset == 0) &&
-		    (tx_chan_width == ATH9K_HT_MACMODE_20))
+		switch(channel_type) {
+		case NL80211_CHAN_NO_HT:
+		case NL80211_CHAN_HT20:
 			chanmode = CHANNEL_A_HT20;
-		if ((ext_chan_offset == 1) &&
-		    (tx_chan_width == ATH9K_HT_MACMODE_2040))
+			break;
+		case NL80211_CHAN_HT40PLUS:
 			chanmode = CHANNEL_A_HT40PLUS;
-		if ((ext_chan_offset == -1) &&
-		    (tx_chan_width == ATH9K_HT_MACMODE_2040))
+			break;
+		case NL80211_CHAN_HT40MINUS:
 			chanmode = CHANNEL_A_HT40MINUS;
+			break;
+		}
 		break;
 	default:
 		break;
@@ -829,45 +832,15 @@ static void setup_ht_cap(struct ieee80211_sta_ht_cap *ht_info)
 	ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
 }
 
-static void ath9k_ht_conf(struct ath_softc *sc,
-			  struct ieee80211_bss_conf *bss_conf)
-{
-	if (sc->hw->conf.ht.enabled) {
-		if (bss_conf->ht.width_40_ok)
-			sc->tx_chan_width = ATH9K_HT_MACMODE_2040;
-		else
-			sc->tx_chan_width = ATH9K_HT_MACMODE_20;
-
-		ath9k_hw_set11nmac2040(sc->sc_ah, sc->tx_chan_width);
-
-		DPRINTF(sc, ATH_DBG_CONFIG,
-			"BSS Changed HT, chanwidth: %d\n", sc->tx_chan_width);
-	}
-}
-
-static inline int ath_sec_offset(u8 ext_offset)
-{
-	if (ext_offset == IEEE80211_HT_PARAM_CHA_SEC_NONE)
-		return 0;
-	else if (ext_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
-		return 1;
-	else if (ext_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW)
-		return -1;
-
-	return 0;
-}
-
 static void ath9k_bss_assoc_info(struct ath_softc *sc,
 				 struct ieee80211_vif *vif,
 				 struct ieee80211_bss_conf *bss_conf)
 {
-	struct ieee80211_hw *hw = sc->hw;
-	struct ieee80211_channel *curchan = hw->conf.channel;
 	struct ath_vap *avp = (void *)vif->drv_priv;
-	int pos;
 
 	if (bss_conf->assoc) {
-		DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info ASSOC %d\n", bss_conf->aid);
+		DPRINTF(sc, ATH_DBG_CONFIG, "Bss Info ASSOC %d, bssid: %pM\n",
+			bss_conf->aid, sc->sc_curbssid);
 
 		/* New association, store aid */
 		if (avp->av_opmode == NL80211_IFTYPE_STATION) {
@@ -886,40 +859,6 @@ static void ath9k_bss_assoc_info(struct ath_softc *sc,
 		sc->sc_halstats.ns_avgtxrssi = ATH_RSSI_DUMMY_MARKER;
 		sc->sc_halstats.ns_avgtxrate = ATH_RATE_DUMMY_MARKER;
 
-		/* Update chainmask */
-		ath_update_chainmask(sc, hw->conf.ht.enabled);
-
-		DPRINTF(sc, ATH_DBG_CONFIG,
-			"bssid %pM aid 0x%x\n",
-			sc->sc_curbssid, sc->sc_curaid);
-
-		pos = ath_get_channel(sc, curchan);
-		if (pos == -1) {
-			DPRINTF(sc, ATH_DBG_FATAL,
-				"Invalid channel: %d\n", curchan->center_freq);
-			return;
-		}
-
-		if (hw->conf.ht.enabled) {
-			int offset =
-				ath_sec_offset(bss_conf->ht.secondary_channel_offset);
-			sc->tx_chan_width = (bss_conf->ht.width_40_ok) ?
-				ATH9K_HT_MACMODE_2040 : ATH9K_HT_MACMODE_20;
-
-			sc->sc_ah->ah_channels[pos].chanmode =
-				ath_get_extchanmode(sc, curchan,
-						    offset, sc->tx_chan_width);
-		} else {
-			sc->sc_ah->ah_channels[pos].chanmode =
-				(curchan->band == IEEE80211_BAND_2GHZ) ?
-				CHANNEL_G : CHANNEL_A;
-		}
-
-		/* set h/w channel */
-		if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0)
-			DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel: %d\n",
-				curchan->center_freq);
-
 		/* Start ANI */
 		mod_timer(&sc->sc_ani.timer,
 			jiffies + msecs_to_jiffies(ATH_ANI_POLLINTERVAL));
@@ -2146,7 +2085,8 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 	struct ath_softc *sc = hw->priv;
 	struct ieee80211_conf *conf = &hw->conf;
 
-	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+	if (changed & (IEEE80211_CONF_CHANGE_CHANNEL |
+		       IEEE80211_CONF_CHANGE_HT)) {
 		struct ieee80211_channel *curchan = hw->conf.channel;
 		int pos;
 
@@ -2165,25 +2105,23 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 			(curchan->band == IEEE80211_BAND_2GHZ) ?
 			CHANNEL_G : CHANNEL_A;
 
-		if ((sc->sc_ah->ah_opmode == NL80211_IFTYPE_AP) &&
-		    (conf->ht.enabled)) {
-			sc->tx_chan_width = (!!conf->ht.sec_chan_offset) ?
-				ATH9K_HT_MACMODE_2040 : ATH9K_HT_MACMODE_20;
+		if (conf->ht.enabled) {
+			if (conf->ht.channel_type == NL80211_CHAN_HT40PLUS ||
+			    conf->ht.channel_type == NL80211_CHAN_HT40MINUS)
+				sc->tx_chan_width = ATH9K_HT_MACMODE_2040;
 
 			sc->sc_ah->ah_channels[pos].chanmode =
 				ath_get_extchanmode(sc, curchan,
-						    conf->ht.sec_chan_offset,
-						    sc->tx_chan_width);
+						    conf->ht.channel_type);
 		}
 
 		if (ath_set_channel(sc, &sc->sc_ah->ah_channels[pos]) < 0) {
 			DPRINTF(sc, ATH_DBG_FATAL, "Unable to set channel\n");
 			return -EINVAL;
 		}
-	}
 
-	if (changed & IEEE80211_CONF_CHANGE_HT)
 		ath_update_chainmask(sc, conf->ht.enabled);
+	}
 
 	if (changed & IEEE80211_CONF_CHANGE_POWER)
 		sc->sc_config.txpowlimit = 2 * conf->power_level;
@@ -2417,9 +2355,6 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
 			sc->sc_flags &= ~SC_OP_PROTECT_ENABLE;
 	}
 
-	if (changed & BSS_CHANGED_HT)
-		ath9k_ht_conf(sc, bss_conf);
-
 	if (changed & BSS_CHANGED_ASSOC) {
 		DPRINTF(sc, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n",
 			bss_conf->assoc);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 2f5e86e12916..bbc1c8052ffa 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -515,19 +515,27 @@ static void iwl_ht_conf(struct iwl_priv *priv,
 	iwl_conf->supported_chan_width =
 		!!(ht_conf->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
 
-	iwl_conf->extension_chan_offset = bss_conf->ht.secondary_channel_offset;
+	/*
+	 * XXX: The HT configuration needs to be moved into iwl_mac_config()
+	 *	to be done there correctly.
+	 */
+
+	iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
+	if (priv->hw->conf.ht.channel_type == NL80211_CHAN_HT40MINUS)
+		iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+	else if(priv->hw->conf.ht.channel_type == NL80211_CHAN_HT40PLUS)
+		iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+
 	/* If no above or below channel supplied disable FAT channel */
 	if (iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_ABOVE &&
-	    iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW) {
-		iwl_conf->extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
+	    iwl_conf->extension_chan_offset != IEEE80211_HT_PARAM_CHA_SEC_BELOW)
 		iwl_conf->supported_chan_width = 0;
-	}
 
 	iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2);
 
 	memcpy(&iwl_conf->mcs, &ht_conf->mcs, 16);
 
-	iwl_conf->tx_chan_width = bss_conf->ht.width_40_ok;
+	iwl_conf->tx_chan_width = iwl_conf->supported_chan_width != 0;
 	iwl_conf->ht_protection =
 		bss_conf->ht.operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
 	iwl_conf->non_GF_STA_present =
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index fd5a537ac51d..f83d69e813d3 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -495,11 +495,9 @@ static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
 	}
 
 	if (changed & BSS_CHANGED_HT) {
-		printk(KERN_DEBUG "  %s: HT: sec_ch_offs=%d width_40_ok=%d "
-		       "op_mode=%d\n",
+		printk(KERN_DEBUG "  %s: HT: op_mode=0x%x\n",
 		       wiphy_name(hw->wiphy),
-		       info->ht.secondary_channel_offset,
-		       info->ht.width_40_ok, info->ht.operation_mode);
+		       info->ht.operation_mode);
 	}
 
 	if (changed & BSS_CHANGED_BASIC_RATES) {
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 7501acfcfdc4..e86ed59f9ad5 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -201,13 +201,13 @@ enum nl80211_commands {
  * @NL80211_ATTR_WIPHY_NAME: wiphy name (used for renaming)
  * @NL80211_ATTR_WIPHY_TXQ_PARAMS: a nested array of TX queue parameters
  * @NL80211_ATTR_WIPHY_FREQ: frequency of the selected channel in MHz
- * @NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET: included with NL80211_ATTR_WIPHY_FREQ
+ * @NL80211_ATTR_WIPHY_CHANNEL_TYPE: included with NL80211_ATTR_WIPHY_FREQ
  *	if HT20 or HT40 are allowed (i.e., 802.11n disabled if not included):
- *	NL80211_SEC_CHAN_NO_HT = HT not allowed (i.e., same as not including
+ *	NL80211_CHAN_NO_HT = HT not allowed (i.e., same as not including
  *		this attribute)
- *	NL80211_SEC_CHAN_DISABLED = HT20 only
- *	NL80211_SEC_CHAN_BELOW = secondary channel is below the primary channel
- *	NL80211_SEC_CHAN_ABOVE = secondary channel is above the primary channel
+ *	NL80211_CHAN_HT20 = HT20 only
+ *	NL80211_CHAN_HT40MINUS = secondary channel is below the primary channel
+ *	NL80211_CHAN_HT40PLUS = secondary channel is above the primary channel
  *
  * @NL80211_ATTR_IFINDEX: network interface index of the device to operate on
  * @NL80211_ATTR_IFNAME: network interface name
@@ -344,7 +344,7 @@ enum nl80211_attrs {
 
 	NL80211_ATTR_WIPHY_TXQ_PARAMS,
 	NL80211_ATTR_WIPHY_FREQ,
-	NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET,
+	NL80211_ATTR_WIPHY_CHANNEL_TYPE,
 
 	/* add attributes here, update the policy in nl80211.c */
 
@@ -805,10 +805,10 @@ enum nl80211_txq_q {
 	NL80211_TXQ_Q_BK
 };
 
-enum nl80211_sec_chan_offset {
-	NL80211_SEC_CHAN_NO_HT /* No HT */,
-	NL80211_SEC_CHAN_DISABLED /* HT20 only */,
-	NL80211_SEC_CHAN_BELOW /* HT40- */,
-	NL80211_SEC_CHAN_ABOVE /* HT40+ */
+enum nl80211_channel_type {
+	NL80211_CHAN_NO_HT,
+	NL80211_CHAN_HT20,
+	NL80211_CHAN_HT40MINUS,
+	NL80211_CHAN_HT40PLUS
 };
 #endif /* __LINUX_NL80211_H */
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 65e03ac93109..23c0ab74ded6 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -563,7 +563,7 @@ struct cfg80211_ops {
 
 	int	(*set_channel)(struct wiphy *wiphy,
 			       struct ieee80211_channel *chan,
-			       enum nl80211_sec_chan_offset);
+			       enum nl80211_channel_type channel_type);
 };
 
 /* temporary wext handlers */
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 046ce692a906..22ae72c58d76 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -165,14 +165,9 @@ enum ieee80211_bss_change {
 
 /**
  * struct ieee80211_bss_ht_conf - BSS's changing HT configuration
- * @secondary_channel_offset: secondary channel offset, uses
- *	%IEEE80211_HT_PARAM_CHA_SEC_ values
- * @width_40_ok: indicates that 40 MHz bandwidth may be used for TX
  * @operation_mode: HT operation mode (like in &struct ieee80211_ht_info)
  */
 struct ieee80211_bss_ht_conf {
-	u8 secondary_channel_offset;
-	bool width_40_ok;
 	u16 operation_mode;
 };
 
@@ -508,9 +503,7 @@ static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
 
 struct ieee80211_ht_conf {
 	bool enabled;
-	int sec_chan_offset; /* 0 = HT40 disabled; -1 = HT40 enabled, secondary
-			      * channel below primary; 1 = HT40 enabled,
-			      * secondary channel above primary */
+	enum nl80211_channel_type channel_type;
 };
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 23b5eeaf7bc5..3ea0884c9432 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1122,12 +1122,12 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy,
 
 static int ieee80211_set_channel(struct wiphy *wiphy,
 				 struct ieee80211_channel *chan,
-				 enum nl80211_sec_chan_offset sec_chan_offset)
+				 enum nl80211_channel_type channel_type)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
 
 	local->oper_channel = chan;
-	local->oper_sec_chan_offset = sec_chan_offset;
+	local->oper_channel_type = channel_type;
 
 	return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
 }
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index a1eed7032c9b..5f510a13b9f0 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -98,6 +98,7 @@ u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_bss_ht_conf ht;
 	u32 changed = 0;
 	bool enable_ht = true, ht_changed;
+	enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
 
 	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 
@@ -112,24 +113,36 @@ u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
 	    ieee80211_channel_to_frequency(hti->control_chan))
 		enable_ht = false;
 
-	/*
-	 * XXX: This is totally incorrect when there are multiple virtual
-	 *	interfaces, needs to be fixed later.
-	 */
-	ht_changed = local->hw.conf.ht.enabled != enable_ht;
+	if (enable_ht) {
+		channel_type = NL80211_CHAN_HT20;
+
+		if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
+		    (sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
+		    (hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) {
+			switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
+			case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+				channel_type = NL80211_CHAN_HT40PLUS;
+				break;
+			case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+				channel_type = NL80211_CHAN_HT40MINUS;
+				break;
+			}
+		}
+	}
+
+	ht_changed = local->hw.conf.ht.enabled != enable_ht ||
+		     channel_type != local->hw.conf.ht.channel_type;
+
+	local->oper_channel_type = channel_type;
 	local->hw.conf.ht.enabled = enable_ht;
+
 	if (ht_changed)
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_HT);
 
 	/* disable HT */
 	if (!enable_ht)
 		return 0;
-	ht.secondary_channel_offset =
-		hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
-	ht.width_40_ok =
-		!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
-		(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
-		(hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY);
+
 	ht.operation_mode = le16_to_cpu(hti->operation_mode);
 
 	/* if bss configuration changed store the new one */
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 6f59e11d7b33..a7dabaecfc72 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -625,7 +625,7 @@ struct ieee80211_local {
 	struct delayed_work scan_work;
 	struct ieee80211_sub_if_data *scan_sdata;
 	struct ieee80211_channel *oper_channel, *scan_channel;
-	enum nl80211_sec_chan_offset oper_sec_chan_offset;
+	enum nl80211_channel_type oper_channel_type;
 	u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
 	size_t scan_ssid_len;
 	struct list_head bss_list;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 6d8710327d14..a0371caf01ce 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -195,37 +195,30 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
 	struct ieee80211_channel *chan;
 	int ret = 0;
 	int power;
-	enum nl80211_sec_chan_offset sec_chan_offset;
+	enum nl80211_channel_type channel_type;
 
 	might_sleep();
 
 	if (local->sw_scanning) {
 		chan = local->scan_channel;
-		sec_chan_offset = NL80211_SEC_CHAN_NO_HT;
+		channel_type = NL80211_CHAN_NO_HT;
 	} else {
 		chan = local->oper_channel;
-		sec_chan_offset = local->oper_sec_chan_offset;
+		channel_type = local->oper_channel_type;
 	}
 
 	if (chan != local->hw.conf.channel ||
-	    sec_chan_offset != local->hw.conf.ht.sec_chan_offset) {
+	    channel_type != local->hw.conf.ht.channel_type) {
 		local->hw.conf.channel = chan;
-		switch (sec_chan_offset) {
-		case NL80211_SEC_CHAN_NO_HT:
+		local->hw.conf.ht.channel_type = channel_type;
+		switch (channel_type) {
+		case NL80211_CHAN_NO_HT:
 			local->hw.conf.ht.enabled = false;
-			local->hw.conf.ht.sec_chan_offset = 0;
 			break;
-		case NL80211_SEC_CHAN_DISABLED:
+		case NL80211_CHAN_HT20:
+		case NL80211_CHAN_HT40MINUS:
+		case NL80211_CHAN_HT40PLUS:
 			local->hw.conf.ht.enabled = true;
-			local->hw.conf.ht.sec_chan_offset = 0;
-			break;
-		case NL80211_SEC_CHAN_BELOW:
-			local->hw.conf.ht.enabled = true;
-			local->hw.conf.ht.sec_chan_offset = -1;
-			break;
-		case NL80211_SEC_CHAN_ABOVE:
-			local->hw.conf.ht.enabled = true;
-			local->hw.conf.ht.sec_chan_offset = 1;
 			break;
 		}
 		changed |= IEEE80211_CONF_CHANGE_CHANNEL;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 290b0017ef2e..e4d1fca5c72d 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -858,6 +858,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	rcu_read_unlock();
 
 	local->hw.conf.ht.enabled = false;
+	local->oper_channel_type = NL80211_CHAN_NO_HT;
 	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_HT);
 
 	ieee80211_bss_info_change_notify(sdata, changed);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 505d68f344ce..71a8391c54f6 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -641,7 +641,7 @@ int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freqMHz)
 		    chan->flags & IEEE80211_CHAN_NO_IBSS)
 			return ret;
 		local->oper_channel = chan;
-		local->oper_sec_chan_offset = NL80211_SEC_CHAN_NO_HT;
+		local->oper_channel_type = NL80211_CHAN_NO_HT;
 
 		if (local->sw_scanning || local->hw_scanning)
 			ret = 0;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 93c9b983ce08..1e728fff474e 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -60,7 +60,7 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
 				      .len = BUS_ID_SIZE-1 },
 	[NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
 	[NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
-	[NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET] = { .type = NLA_U32 },
+	[NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
 
 	[NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
 	[NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
@@ -362,8 +362,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
-		enum nl80211_sec_chan_offset sec_chan_offset =
-			NL80211_SEC_CHAN_NO_HT;
+		enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
 		struct ieee80211_channel *chan;
 		struct ieee80211_sta_ht_cap *ht_cap;
 		u32 freq, sec_freq;
@@ -375,13 +374,13 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 
 		result = -EINVAL;
 
-		if (info->attrs[NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET]) {
-			sec_chan_offset = nla_get_u32(info->attrs[
-					NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET]);
-			if (sec_chan_offset != NL80211_SEC_CHAN_NO_HT &&
-			    sec_chan_offset != NL80211_SEC_CHAN_DISABLED &&
-			    sec_chan_offset != NL80211_SEC_CHAN_BELOW &&
-			    sec_chan_offset != NL80211_SEC_CHAN_ABOVE)
+		if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
+			channel_type = nla_get_u32(info->attrs[
+					   NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
+			if (channel_type != NL80211_CHAN_NO_HT &&
+			    channel_type != NL80211_CHAN_HT20 &&
+			    channel_type != NL80211_CHAN_HT40PLUS &&
+			    channel_type != NL80211_CHAN_HT40MINUS)
 				goto bad_res;
 		}
 
@@ -392,9 +391,9 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 		if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
 			goto bad_res;
 
-		if (sec_chan_offset == NL80211_SEC_CHAN_BELOW)
+		if (channel_type == NL80211_CHAN_HT40MINUS)
 			sec_freq = freq - 20;
-		else if (sec_chan_offset == NL80211_SEC_CHAN_ABOVE)
+		else if (channel_type == NL80211_CHAN_HT40PLUS)
 			sec_freq = freq + 20;
 		else
 			sec_freq = 0;
@@ -402,7 +401,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 		ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
 
 		/* no HT capabilities */
-		if (sec_chan_offset != NL80211_SEC_CHAN_NO_HT &&
+		if (channel_type != NL80211_CHAN_NO_HT &&
 		    !ht_cap->ht_supported)
 			goto bad_res;
 
@@ -422,7 +421,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
 		}
 
 		result = rdev->ops->set_channel(&rdev->wiphy, chan,
-						sec_chan_offset);
+						channel_type);
 		if (result)
 			goto bad_res;
 	}
-- 
cgit v1.2.3


From 5e3f308997f53d00e8cbebdb89d4f6e347aa963a Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 17 Dec 2008 14:26:59 -0600
Subject: mac80211: Print unknown packet type in tasklet_handler

In stress testing p54usb, the WARN_ON() in ieee80211_tasklet_handler() was
triggered; however, there is no logging of the received value for packet
type. Adding that feature will improve the warning.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'net/mac80211/main.c')

diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index a0371caf01ce..ab6b73647b3e 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -341,7 +341,8 @@ static void ieee80211_tasklet_handler(unsigned long data)
 			dev_kfree_skb(skb);
 			break ;
 		default:
-			WARN_ON(1);
+			WARN(1, "mac80211: Packet is of unknown type %d\n",
+			     skb->pkt_type);
 			dev_kfree_skb(skb);
 			break;
 		}
-- 
cgit v1.2.3


From ce7c9111a97492d04c504f40736a669c235d664a Mon Sep 17 00:00:00 2001
From: Kalle Valo <kalle.valo@nokia.com>
Date: Thu, 18 Dec 2008 23:35:20 +0200
Subject: mac80211: track master queue status

This is a preparation for the dynamic power save support. In future there are
two paths to stop the master queues and we need to track this properly to
avoid starting queues incorrectly. Implement this by adding a status
array for each queue.

The original idea and design is from Johannes Berg, I just did
the implementation based on his notes. All the bugs are mine, of course.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/ieee80211_i.h | 12 ++++++-
 net/mac80211/main.c        |  2 ++
 net/mac80211/util.c        | 86 ++++++++++++++++++++++++++++++++++++++++++----
 3 files changed, 93 insertions(+), 7 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 18b91601770a..a74d6738b30a 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -538,6 +538,10 @@ enum {
 	IEEE80211_ADDBA_MSG	= 4,
 };
 
+enum queue_stop_reason {
+	IEEE80211_QUEUE_STOP_REASON_DRIVER,
+};
+
 /* maximum number of hardware queues we support. */
 #define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
 
@@ -554,7 +558,8 @@ struct ieee80211_local {
 	const struct ieee80211_ops *ops;
 
 	unsigned long queue_pool[BITS_TO_LONGS(QD_MAX_QUEUES)];
-
+	unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
+	spinlock_t queue_stop_reason_lock;
 	struct net_device *mdev; /* wmaster# - "master" 802.11 device */
 	int open_count;
 	int monitors, cooked_mntrs;
@@ -972,6 +977,11 @@ int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
 u64 ieee80211_mandatory_rates(struct ieee80211_local *local,
 			      enum ieee80211_band band);
 
+void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
+				     enum queue_stop_reason reason);
+void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
+				     enum queue_stop_reason reason);
+
 #ifdef CONFIG_MAC80211_NOINLINE
 #define debug_noinline noinline
 #else
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index ab6b73647b3e..21335382f530 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -725,6 +725,8 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 
 	spin_lock_init(&local->key_lock);
 
+	spin_lock_init(&local->queue_stop_reason_lock);
+
 	INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work);
 
 	sta_info_init(local);
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 71a8391c54f6..fb89e1d0aa03 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -330,10 +330,20 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
 }
 EXPORT_SYMBOL(ieee80211_ctstoself_duration);
 
-void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue)
+static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
+				   enum queue_stop_reason reason)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
+	/* we don't need to track ampdu queues */
+	if (queue < ieee80211_num_regular_queues(hw)) {
+		__clear_bit(reason, &local->queue_stop_reasons[queue]);
+
+		if (local->queue_stop_reasons[queue] != 0)
+			/* someone still has this queue stopped */
+			return;
+	}
+
 	if (test_bit(queue, local->queues_pending)) {
 		set_bit(queue, local->queues_pending_run);
 		tasklet_schedule(&local->tx_pending_tasklet);
@@ -341,22 +351,74 @@ void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue)
 		netif_wake_subqueue(local->mdev, queue);
 	}
 }
+
+void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
+				    enum queue_stop_reason reason)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	unsigned long flags;
+
+	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+	__ieee80211_wake_queue(hw, queue, reason);
+	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+}
+
+void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue)
+{
+	ieee80211_wake_queue_by_reason(hw, queue,
+				       IEEE80211_QUEUE_STOP_REASON_DRIVER);
+}
 EXPORT_SYMBOL(ieee80211_wake_queue);
 
-void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue)
+static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue,
+				   enum queue_stop_reason reason)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
+	/* we don't need to track ampdu queues */
+	if (queue < ieee80211_num_regular_queues(hw))
+		__set_bit(reason, &local->queue_stop_reasons[queue]);
+
 	netif_stop_subqueue(local->mdev, queue);
 }
+
+void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
+				    enum queue_stop_reason reason)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+	unsigned long flags;
+
+	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+	__ieee80211_stop_queue(hw, queue, reason);
+	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+}
+
+void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue)
+{
+	ieee80211_stop_queue_by_reason(hw, queue,
+				       IEEE80211_QUEUE_STOP_REASON_DRIVER);
+}
 EXPORT_SYMBOL(ieee80211_stop_queue);
 
-void ieee80211_stop_queues(struct ieee80211_hw *hw)
+void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
+				    enum queue_stop_reason reason)
 {
+	struct ieee80211_local *local = hw_to_local(hw);
+	unsigned long flags;
 	int i;
 
+	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+
 	for (i = 0; i < ieee80211_num_queues(hw); i++)
-		ieee80211_stop_queue(hw, i);
+		__ieee80211_stop_queue(hw, i, reason);
+
+	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+}
+
+void ieee80211_stop_queues(struct ieee80211_hw *hw)
+{
+	ieee80211_stop_queues_by_reason(hw,
+					IEEE80211_QUEUE_STOP_REASON_DRIVER);
 }
 EXPORT_SYMBOL(ieee80211_stop_queues);
 
@@ -367,12 +429,24 @@ int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue)
 }
 EXPORT_SYMBOL(ieee80211_queue_stopped);
 
-void ieee80211_wake_queues(struct ieee80211_hw *hw)
+void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
+				     enum queue_stop_reason reason)
 {
+	struct ieee80211_local *local = hw_to_local(hw);
+	unsigned long flags;
 	int i;
 
+	spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
+
 	for (i = 0; i < hw->queues + hw->ampdu_queues; i++)
-		ieee80211_wake_queue(hw, i);
+		__ieee80211_wake_queue(hw, i, reason);
+
+	spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
+}
+
+void ieee80211_wake_queues(struct ieee80211_hw *hw)
+{
+	ieee80211_wake_queues_by_reason(hw, IEEE80211_QUEUE_STOP_REASON_DRIVER);
 }
 EXPORT_SYMBOL(ieee80211_wake_queues);
 
-- 
cgit v1.2.3


From 520eb82076993b7f55ef9b80771d264272e5127b Mon Sep 17 00:00:00 2001
From: Kalle Valo <kalle.valo@nokia.com>
Date: Thu, 18 Dec 2008 23:35:27 +0200
Subject: mac80211: implement dynamic power save

This patch implements dynamic power save for mac80211. Basically it
means enabling power save mode after an idle period. Implementing it
dynamically gives a good compromise of low power consumption and low
latency. Some hardware have support for this in firmware, but some
require the host to do it.

The dynamic power save is implemented by adding an timeout to
ieee80211_subif_start_xmit(). The timeout can be enabled from userspace
with Wireless Extensions. For example, the command below enables the
dynamic power save and sets the time timeout to 500 ms:

iwconfig wlan0 power timeout 500m

Power save now only works with devices which handle power save in firmware.
It's also disabled by default and the heuristics when and how to enable is
considered as a policy decision and will be left for the userspace to handle.
In case the firmware has support for this, drivers can disable this feature
with IEEE80211_HW_NO_STACK_DYNAMIC_PS.

Big thanks to Johannes Berg for the help with the design and code.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/mac80211.h     |  6 ++++++
 net/mac80211/ieee80211_i.h | 10 ++++++++++
 net/mac80211/main.c        |  7 +++++++
 net/mac80211/mlme.c        | 49 ++++++++++++++++++++++++++++++++++++++++++++--
 net/mac80211/tx.c          | 13 ++++++++++++
 net/mac80211/wext.c        | 30 ++++++++++++++++++----------
 6 files changed, 103 insertions(+), 12 deletions(-)

(limited to 'net/mac80211/main.c')

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 9428d3e2f113..b3bd00a9d992 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -854,6 +854,11 @@ enum ieee80211_tkip_key_type {
  *
  * @IEEE80211_HW_AMPDU_AGGREGATION:
  *	Hardware supports 11n A-MPDU aggregation.
+ *
+ * @IEEE80211_HW_NO_STACK_DYNAMIC_PS:
+ *	Hardware which has dynamic power save support, meaning
+ *	that power save is enabled in idle periods, and don't need support
+ *	from stack.
  */
 enum ieee80211_hw_flags {
 	IEEE80211_HW_RX_INCLUDES_FCS			= 1<<1,
@@ -866,6 +871,7 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_NOISE_DBM				= 1<<8,
 	IEEE80211_HW_SPECTRUM_MGMT			= 1<<9,
 	IEEE80211_HW_AMPDU_AGGREGATION			= 1<<10,
+	IEEE80211_HW_NO_STACK_DYNAMIC_PS		= 1<<11,
 };
 
 /**
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index a74d6738b30a..f3eec989662b 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -540,6 +540,7 @@ enum {
 
 enum queue_stop_reason {
 	IEEE80211_QUEUE_STOP_REASON_DRIVER,
+	IEEE80211_QUEUE_STOP_REASON_PS,
 };
 
 /* maximum number of hardware queues we support. */
@@ -693,7 +694,12 @@ struct ieee80211_local {
 				*/
 	int wifi_wme_noack_test;
 	unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
+
 	bool powersave;
+	int dynamic_ps_timeout;
+	struct work_struct dynamic_ps_enable_work;
+	struct work_struct dynamic_ps_disable_work;
+	struct timer_list dynamic_ps_timer;
 
 #ifdef CONFIG_MAC80211_DEBUGFS
 	struct local_debugfsdentries {
@@ -977,6 +983,10 @@ int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
 u64 ieee80211_mandatory_rates(struct ieee80211_local *local,
 			      enum ieee80211_band band);
 
+void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
+void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
+void ieee80211_dynamic_ps_timer(unsigned long data);
+
 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
 				     enum queue_stop_reason reason);
 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 21335382f530..24b14363d6e7 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -729,6 +729,13 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
 
 	INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work);
 
+	INIT_WORK(&local->dynamic_ps_enable_work,
+		  ieee80211_dynamic_ps_enable_work);
+	INIT_WORK(&local->dynamic_ps_disable_work,
+		  ieee80211_dynamic_ps_disable_work);
+	setup_timer(&local->dynamic_ps_timer,
+		    ieee80211_dynamic_ps_timer, (unsigned long) local);
+
 	sta_info_init(local);
 
 	tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index dac8bd37dcf5..5ba721b6a399 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -745,8 +745,14 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 	ieee80211_bss_info_change_notify(sdata, bss_info_changed);
 
 	if (local->powersave) {
-		local->hw.conf.flags |= IEEE80211_CONF_PS;
-		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+		if (local->dynamic_ps_timeout > 0)
+			mod_timer(&local->dynamic_ps_timer, jiffies +
+				  msecs_to_jiffies(local->dynamic_ps_timeout));
+		else {
+			conf->flags |= IEEE80211_CONF_PS;
+			ieee80211_hw_config(local,
+					    IEEE80211_CONF_CHANGE_PS);
+		}
 	}
 
 	netif_tx_start_all_queues(sdata->dev);
@@ -866,6 +872,9 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	local->oper_channel_type = NL80211_CHAN_NO_HT;
 	config_changed |= IEEE80211_CONF_CHANGE_HT;
 
+	del_timer_sync(&local->dynamic_ps_timer);
+	cancel_work_sync(&local->dynamic_ps_enable_work);
+
 	if (local->hw.conf.flags & IEEE80211_CONF_PS) {
 		local->hw.conf.flags &= ~IEEE80211_CONF_PS;
 		config_changed |= IEEE80211_CONF_CHANGE_PS;
@@ -2593,3 +2602,39 @@ void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
 		ieee80211_restart_sta_timer(sdata);
 	rcu_read_unlock();
 }
+
+void ieee80211_dynamic_ps_disable_work(struct work_struct *work)
+{
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local,
+			     dynamic_ps_disable_work);
+
+	if (local->hw.conf.flags & IEEE80211_CONF_PS) {
+		local->hw.conf.flags &= ~IEEE80211_CONF_PS;
+		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+	}
+
+	ieee80211_wake_queues_by_reason(&local->hw,
+					IEEE80211_QUEUE_STOP_REASON_PS);
+}
+
+void ieee80211_dynamic_ps_enable_work(struct work_struct *work)
+{
+	struct ieee80211_local *local =
+		container_of(work, struct ieee80211_local,
+			     dynamic_ps_enable_work);
+
+	if (local->hw.conf.flags & IEEE80211_CONF_PS)
+		return;
+
+	local->hw.conf.flags |= IEEE80211_CONF_PS;
+
+	ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+}
+
+void ieee80211_dynamic_ps_timer(unsigned long data)
+{
+	struct ieee80211_local *local = (void *) data;
+
+	queue_work(local->hw.workqueue, &local->dynamic_ps_enable_work);
+}
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index b098c58d216f..a4af3a124cce 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1473,6 +1473,19 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
 		goto fail;
 	}
 
+	if (!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) &&
+	    local->dynamic_ps_timeout > 0) {
+		if (local->hw.conf.flags & IEEE80211_CONF_PS) {
+			ieee80211_stop_queues_by_reason(&local->hw,
+							IEEE80211_QUEUE_STOP_REASON_PS);
+			queue_work(local->hw.workqueue,
+				   &local->dynamic_ps_disable_work);
+		}
+
+		mod_timer(&local->dynamic_ps_timer, jiffies +
+			  msecs_to_jiffies(local->dynamic_ps_timeout));
+	}
+
 	nh_pos = skb_network_header(skb) - skb->data;
 	h_pos = skb_transport_header(skb) - skb->data;
 
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index f6640d047157..7162d5816f39 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -833,7 +833,7 @@ static int ieee80211_ioctl_siwpower(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);
 	struct ieee80211_conf *conf = &local->hw.conf;
-	int ret = 0;
+	int ret = 0, timeout = 0;
 	bool ps;
 
 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
@@ -841,6 +841,7 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
 
 	if (wrq->disabled) {
 		ps = false;
+		timeout = 0;
 		goto set;
 	}
 
@@ -850,22 +851,31 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
 	case IW_POWER_ALL_R:    /* If explicitely state all */
 		ps = true;
 		break;
-	default:                /* Otherwise we don't support it */
-		return -EINVAL;
+	default:                /* Otherwise we ignore */
+		break;
 	}
 
-	if (ps == local->powersave)
-		return ret;
+	if (wrq->flags & IW_POWER_TIMEOUT)
+		timeout = wrq->value / 1000;
 
 set:
+	if (ps == local->powersave && timeout == local->dynamic_ps_timeout)
+		return ret;
+
 	local->powersave = ps;
+	local->dynamic_ps_timeout = timeout;
 
 	if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
-		if (local->powersave)
-			conf->flags |= IEEE80211_CONF_PS;
-		else
-			conf->flags &= ~IEEE80211_CONF_PS;
-
+		if (!(local->hw.flags & IEEE80211_HW_NO_STACK_DYNAMIC_PS) &&
+		    local->dynamic_ps_timeout > 0)
+			mod_timer(&local->dynamic_ps_timer, jiffies +
+				  msecs_to_jiffies(local->dynamic_ps_timeout));
+		else {
+			if (local->powersave)
+				conf->flags |= IEEE80211_CONF_PS;
+			else
+				conf->flags &= ~IEEE80211_CONF_PS;
+		}
 		ret = ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 	}
 
-- 
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