1 files changed, 115 insertions, 88 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index 8efab398352..004dff9b962 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -13,9 +13,7 @@
 	GNU General Public License for more details.
 
 	You should have received a copy of the GNU General Public License
-	along with this program; if not, write to the
-	Free Software Foundation, Inc.,
-	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+	along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
@@ -46,7 +44,7 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev,
 
 	skb = dev_alloc_skb(data_length + rt2x00dev->hw->extra_tx_headroom);
 	if (unlikely(!skb)) {
-		WARNING(rt2x00dev, "Failed to create RTS/CTS frame.\n");
+		rt2x00_warn(rt2x00dev, "Failed to create RTS/CTS frame\n");
 		return -ENOMEM;
 	}
 
@@ -90,16 +88,18 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev,
 				  frag_skb->data, data_length, tx_info,
 				  (struct ieee80211_rts *)(skb->data));
 
-	retval = rt2x00queue_write_tx_frame(queue, skb, true);
+	retval = rt2x00queue_write_tx_frame(queue, skb, NULL, true);
 	if (retval) {
 		dev_kfree_skb_any(skb);
-		WARNING(rt2x00dev, "Failed to send RTS/CTS frame.\n");
+		rt2x00_warn(rt2x00dev, "Failed to send RTS/CTS frame\n");
 	}
 
 	return retval;
 }
 
-void rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+void rt2x00mac_tx(struct ieee80211_hw *hw,
+		  struct ieee80211_tx_control *control,
+		  struct sk_buff *skb)
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
@@ -113,7 +113,7 @@ void rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 	 * due to possible race conditions in mac80211.
 	 */
 	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
-		goto exit_fail;
+		goto exit_free_skb;
 
 	/*
 	 * Use the ATIM queue if appropriate and present.
@@ -124,10 +124,10 @@ void rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 
 	queue = rt2x00queue_get_tx_queue(rt2x00dev, qid);
 	if (unlikely(!queue)) {
-		ERROR(rt2x00dev,
-		      "Attempt to send packet over invalid queue %d.\n"
-		      "Please file bug report to %s.\n", qid, DRV_PROJECT);
-		goto exit_fail;
+		rt2x00_err(rt2x00dev,
+			   "Attempt to send packet over invalid queue %d\n"
+			   "Please file bug report to %s\n", qid, DRV_PROJECT);
+		goto exit_free_skb;
 	}
 
 	/*
@@ -149,17 +149,27 @@ void rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
 			goto exit_fail;
 	}
 
-	if (unlikely(rt2x00queue_write_tx_frame(queue, skb, false)))
+	if (unlikely(rt2x00queue_write_tx_frame(queue, skb, control->sta, false)))
 		goto exit_fail;
 
+	/*
+	 * Pausing queue has to be serialized with rt2x00lib_txdone(). Note
+	 * we should not use spin_lock_bh variant as bottom halve was already
+	 * disabled before ieee80211_xmit() call.
+	 */
+	spin_lock(&queue->tx_lock);
 	if (rt2x00queue_threshold(queue))
 		rt2x00queue_pause_queue(queue);
+	spin_unlock(&queue->tx_lock);
 
 	return;
 
  exit_fail:
+	spin_lock(&queue->tx_lock);
 	rt2x00queue_pause_queue(queue);
-	dev_kfree_skb_any(skb);
+	spin_unlock(&queue->tx_lock);
+ exit_free_skb:
+	ieee80211_free_txskb(hw, skb);
 }
 EXPORT_SYMBOL_GPL(rt2x00mac_tx);
 
@@ -202,46 +212,6 @@ int rt2x00mac_add_interface(struct ieee80211_hw *hw,
 	    !test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
 		return -ENODEV;
 
-	switch (vif->type) {
-	case NL80211_IFTYPE_AP:
-		/*
-		 * We don't support mixed combinations of
-		 * sta and ap interfaces.
-		 */
-		if (rt2x00dev->intf_sta_count)
-			return -ENOBUFS;
-
-		/*
-		 * Check if we exceeded the maximum amount
-		 * of supported interfaces.
-		 */
-		if (rt2x00dev->intf_ap_count >= rt2x00dev->ops->max_ap_intf)
-			return -ENOBUFS;
-
-		break;
-	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_ADHOC:
-	case NL80211_IFTYPE_MESH_POINT:
-	case NL80211_IFTYPE_WDS:
-		/*
-		 * We don't support mixed combinations of
-		 * sta and ap interfaces.
-		 */
-		if (rt2x00dev->intf_ap_count)
-			return -ENOBUFS;
-
-		/*
-		 * Check if we exceeded the maximum amount
-		 * of supported interfaces.
-		 */
-		if (rt2x00dev->intf_sta_count >= rt2x00dev->ops->max_sta_intf)
-			return -ENOBUFS;
-
-		break;
-	default:
-		return -EINVAL;
-	}
-
 	/*
 	 * Loop through all beacon queues to find a free
 	 * entry. Since there are as much beacon entries
@@ -267,7 +237,6 @@ int rt2x00mac_add_interface(struct ieee80211_hw *hw,
 	else
 		rt2x00dev->intf_sta_count++;
 
-	spin_lock_init(&intf->seqlock);
 	mutex_init(&intf->beacon_skb_mutex);
 	intf->beacon = entry;
 
@@ -411,11 +380,11 @@ void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
 	 * of different types, but has no a separate filter for PS Poll frames,
 	 * FIF_CONTROL flag implies FIF_PSPOLL.
 	 */
-	if (!test_bit(CAPABILITY_CONTROL_FILTERS, &rt2x00dev->cap_flags)) {
+	if (!rt2x00_has_cap_control_filters(rt2x00dev)) {
 		if (*total_flags & FIF_CONTROL || *total_flags & FIF_PSPOLL)
 			*total_flags |= FIF_CONTROL | FIF_PSPOLL;
 	}
-	if (!test_bit(CAPABILITY_CONTROL_FILTER_PSPOLL, &rt2x00dev->cap_flags)) {
+	if (!rt2x00_has_cap_control_filter_pspoll(rt2x00dev)) {
 		if (*total_flags & FIF_CONTROL)
 			*total_flags |= FIF_PSPOLL;
 	}
@@ -453,9 +422,9 @@ int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
 	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
 		return 0;
 
-	ieee80211_iterate_active_interfaces_atomic(rt2x00dev->hw,
-						   rt2x00mac_set_tim_iter,
-						   rt2x00dev);
+	ieee80211_iterate_active_interfaces_atomic(
+		rt2x00dev->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+		rt2x00mac_set_tim_iter, rt2x00dev);
 
 	/* queue work to upodate the beacon template */
 	ieee80211_queue_work(rt2x00dev->hw, &rt2x00dev->intf_work);
@@ -493,34 +462,41 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	struct rt2x00lib_crypto crypto;
 	static const u8 bcast_addr[ETH_ALEN] =
 		{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, };
+	struct rt2x00_sta *sta_priv = NULL;
 
 	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		return 0;
-	else if (!test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags))
-		return -EOPNOTSUPP;
-	else if (key->keylen > 32)
-		return -ENOSPC;
 
-	memset(&crypto, 0, sizeof(crypto));
+	if (!rt2x00_has_cap_hw_crypto(rt2x00dev))
+		return -EOPNOTSUPP;
 
 	/*
-	 * When in STA mode, bssidx is always 0 otherwise local_address[5]
-	 * contains the bss number, see BSS_ID_MASK comments for details.
+	 * To support IBSS RSN, don't program group keys in IBSS, the
+	 * hardware will then not attempt to decrypt the frames.
 	 */
-	if (rt2x00dev->intf_sta_count)
-		crypto.bssidx = 0;
-	else
-		crypto.bssidx = vif->addr[5] & (rt2x00dev->ops->max_ap_intf - 1);
+	if (vif->type == NL80211_IFTYPE_ADHOC &&
+	    !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
+		return -EOPNOTSUPP;
 
+	if (key->keylen > 32)
+		return -ENOSPC;
+
+	memset(&crypto, 0, sizeof(crypto));
+
+	crypto.bssidx = rt2x00lib_get_bssidx(rt2x00dev, vif);
 	crypto.cipher = rt2x00crypto_key_to_cipher(key);
 	if (crypto.cipher == CIPHER_NONE)
 		return -EOPNOTSUPP;
+	if (crypto.cipher == CIPHER_TKIP && rt2x00_is_usb(rt2x00dev))
+		return -EOPNOTSUPP;
 
 	crypto.cmd = cmd;
 
-	if (sta)
+	if (sta) {
 		crypto.address = sta->addr;
-	else
+		sta_priv = sta_to_rt2x00_sta(sta);
+		crypto.wcid = sta_priv->wcid;
+	} else
 		crypto.address = bcast_addr;
 
 	if (crypto.cipher == CIPHER_TKIP)
@@ -559,6 +535,39 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 EXPORT_SYMBOL_GPL(rt2x00mac_set_key);
 #endif /* CONFIG_RT2X00_LIB_CRYPTO */
 
+int rt2x00mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		      struct ieee80211_sta *sta)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	struct rt2x00_sta *sta_priv = sta_to_rt2x00_sta(sta);
+
+	/*
+	 * If there's no space left in the device table store
+	 * -1 as wcid but tell mac80211 everything went ok.
+	 */
+	if (rt2x00dev->ops->lib->sta_add(rt2x00dev, vif, sta))
+		sta_priv->wcid = -1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_sta_add);
+
+int rt2x00mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			 struct ieee80211_sta *sta)
+{
+	struct rt2x00_dev *rt2x00dev = hw->priv;
+	struct rt2x00_sta *sta_priv = sta_to_rt2x00_sta(sta);
+
+	/*
+	 * If we never sent the STA to the device no need to clean it up.
+	 */
+	if (sta_priv->wcid < 0)
+		return 0;
+
+	return rt2x00dev->ops->lib->sta_remove(rt2x00dev, sta_priv->wcid);
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_sta_remove);
+
 void rt2x00mac_sw_scan_start(struct ieee80211_hw *hw)
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
@@ -614,20 +623,18 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
 				      bss_conf->bssid);
 
 	/*
-	 * Update the beacon. This is only required on USB devices. PCI
-	 * devices fetch beacons periodically.
-	 */
-	if (changes & BSS_CHANGED_BEACON && rt2x00_is_usb(rt2x00dev))
-		rt2x00queue_update_beacon(rt2x00dev, vif);
-
-	/*
 	 * Start/stop beaconing.
 	 */
 	if (changes & BSS_CHANGED_BEACON_ENABLED) {
 		if (!bss_conf->enable_beacon && intf->enable_beacon) {
-			rt2x00queue_clear_beacon(rt2x00dev, vif);
 			rt2x00dev->intf_beaconing--;
 			intf->enable_beacon = false;
+			/*
+			 * Clear beacon in the H/W for this vif. This is needed
+			 * to disable beaconing on this particular interface
+			 * and keep it running on other interfaces.
+			 */
+			rt2x00queue_clear_beacon(rt2x00dev, vif);
 
 			if (rt2x00dev->intf_beaconing == 0) {
 				/*
@@ -638,11 +645,15 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
 				rt2x00queue_stop_queue(rt2x00dev->bcn);
 				mutex_unlock(&intf->beacon_skb_mutex);
 			}
-
-
 		} else if (bss_conf->enable_beacon && !intf->enable_beacon) {
 			rt2x00dev->intf_beaconing++;
 			intf->enable_beacon = true;
+			/*
+			 * Upload beacon to the H/W. This is only required on
+			 * USB devices. PCI devices fetch beacons periodically.
+			 */
+			if (rt2x00_is_usb(rt2x00dev))
+				rt2x00queue_update_beacon(rt2x00dev, vif);
 
 			if (rt2x00dev->intf_beaconing == 1) {
 				/*
@@ -671,9 +682,19 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
 			rt2x00dev->intf_associated--;
 
 		rt2x00leds_led_assoc(rt2x00dev, !!rt2x00dev->intf_associated);
+
+		clear_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags);
 	}
 
 	/*
+	 * Check for access point which do not support 802.11e . We have to
+	 * generate data frames sequence number in S/W for such AP, because
+	 * of H/W bug.
+	 */
+	if (changes & BSS_CHANGED_QOS && !bss_conf->qos)
+		set_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags);
+
+	/*
 	 * When the erp information has changed, we should perform
 	 * additional configuration steps. For all other changes we are done.
 	 */
@@ -684,7 +705,8 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
 }
 EXPORT_SYMBOL_GPL(rt2x00mac_bss_info_changed);
 
-int rt2x00mac_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
+int rt2x00mac_conf_tx(struct ieee80211_hw *hw,
+		      struct ieee80211_vif *vif, u16 queue_idx,
 		      const struct ieee80211_tx_queue_params *params)
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
@@ -711,9 +733,10 @@ int rt2x00mac_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
 	queue->aifs = params->aifs;
 	queue->txop = params->txop;
 
-	INFO(rt2x00dev,
-	     "Configured TX queue %d - CWmin: %d, CWmax: %d, Aifs: %d, TXop: %d.\n",
-	     queue_idx, queue->cw_min, queue->cw_max, queue->aifs, queue->txop);
+	rt2x00_dbg(rt2x00dev,
+		   "Configured TX queue %d - CWmin: %d, CWmax: %d, Aifs: %d, TXop: %d\n",
+		   queue_idx, queue->cw_min, queue->cw_max, queue->aifs,
+		   queue->txop);
 
 	return 0;
 }
@@ -728,11 +751,15 @@ void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw)
 }
 EXPORT_SYMBOL_GPL(rt2x00mac_rfkill_poll);
 
-void rt2x00mac_flush(struct ieee80211_hw *hw, bool drop)
+void rt2x00mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+		     u32 queues, bool drop)
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
 	struct data_queue *queue;
 
+	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
+		return;
+
 	tx_queue_for_each(rt2x00dev, queue)
 		rt2x00queue_flush_queue(queue, drop);
 }