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

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (34 commits)
  net: fix build erros with CONFIG_BUG=n, CONFIG_GENERIC_BUG=n
  ipv6: skb_dst() can be NULL in ipv6_hop_jumbo().
  tg3: Update copyright and driver version
  tg3: Disable 5717 serdes and B0 support
  tg3: Add reliable serdes detection for 5717 A0
  tg3: Fix std rx prod ring handling
  tg3: Fix std prod ring nicaddr for 5787 and 57765
  sfc: Fix conditions for MDIO self-test
  sfc: Fix polling for slow MCDI operations
  e1000e: workaround link issues on busy hub in half duplex on 82577/82578
  e1000e: MDIO slow mode should always be done for 82577
  ixgbe: update copyright dates
  ixgbe: Do not attempt to perform interrupts in netpoll when down
  cfg80211: fix refcount imbalance when wext is disabled
  mac80211: fix queue selection for data frames on monitor interfaces
  iwlwifi: silence buffer overflow warning
  iwlwifi: disable tx on beacon update notification
  iwlwifi: fix iwl_queue_used bug when read_ptr == write_ptr
  mac80211: fix endian error
  mac80211: add missing sanity checks for action frames
  ...

11 files changed, 161 insertions, 46 deletions

diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index df159ff..4bac362 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -559,6 +559,11 @@ static inline struct inet6_dev *ipv6_skb_idev(struct sk_buff *skb)
 	return skb_dst(skb) ? ip6_dst_idev(skb_dst(skb)) : __in6_dev_get(skb->dev);
 }
 
+static inline struct net *ipv6_skb_net(struct sk_buff *skb)
+{
+	return skb_dst(skb) ? dev_net(skb_dst(skb)->dev) : dev_net(skb->dev);
+}
+
 /* Router Alert as of RFC 2711 */
 
 static int ipv6_hop_ra(struct sk_buff *skb, int optoff)
@@ -580,8 +585,8 @@ static int ipv6_hop_ra(struct sk_buff *skb, int optoff)
 static int ipv6_hop_jumbo(struct sk_buff *skb, int optoff)
 {
 	const unsigned char *nh = skb_network_header(skb);
+	struct net *net = ipv6_skb_net(skb);
 	u32 pkt_len;
-	struct net *net = dev_net(skb_dst(skb)->dev);
 
 	if (nh[optoff + 1] != 4 || (optoff & 3) != 2) {
 		LIMIT_NETDEBUG(KERN_DEBUG "ipv6_hop_jumbo: wrong jumbo opt length/alignment %d\n",
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 80c16f6..32abae3 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -15,12 +15,14 @@
 #include <linux/netdevice.h>
 #include <linux/rtnetlink.h>
 #include <net/mac80211.h>
+#include <net/ieee80211_radiotap.h>
 #include "ieee80211_i.h"
 #include "sta_info.h"
 #include "debugfs_netdev.h"
 #include "mesh.h"
 #include "led.h"
 #include "driver-ops.h"
+#include "wme.h"
 
 /**
  * DOC: Interface list locking
@@ -314,7 +316,7 @@ static int ieee80211_open(struct net_device *dev)
 	if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		ieee80211_queue_work(&local->hw, &sdata->u.mgd.work);
 
-	netif_start_queue(dev);
+	netif_tx_start_all_queues(dev);
 
 	return 0;
  err_del_interface:
@@ -343,7 +345,7 @@ static int ieee80211_stop(struct net_device *dev)
 	/*
 	 * Stop TX on this interface first.
 	 */
-	netif_stop_queue(dev);
+	netif_tx_stop_all_queues(dev);
 
 	/*
 	 * Now delete all active aggregation sessions.
@@ -644,6 +646,12 @@ static void ieee80211_teardown_sdata(struct net_device *dev)
 	WARN_ON(flushed);
 }
 
+static u16 ieee80211_netdev_select_queue(struct net_device *dev,
+					 struct sk_buff *skb)
+{
+	return ieee80211_select_queue(IEEE80211_DEV_TO_SUB_IF(dev), skb);
+}
+
 static const struct net_device_ops ieee80211_dataif_ops = {
 	.ndo_open		= ieee80211_open,
 	.ndo_stop		= ieee80211_stop,
@@ -652,8 +660,38 @@ static const struct net_device_ops ieee80211_dataif_ops = {
 	.ndo_set_multicast_list = ieee80211_set_multicast_list,
 	.ndo_change_mtu 	= ieee80211_change_mtu,
 	.ndo_set_mac_address 	= eth_mac_addr,
+	.ndo_select_queue	= ieee80211_netdev_select_queue,
 };
 
+static u16 ieee80211_monitor_select_queue(struct net_device *dev,
+					  struct sk_buff *skb)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_hdr *hdr;
+	struct ieee80211_radiotap_header *rtap = (void *)skb->data;
+	u8 *p;
+
+	if (local->hw.queues < 4)
+		return 0;
+
+	if (skb->len < 4 ||
+	    skb->len < le16_to_cpu(rtap->it_len) + 2 /* frame control */)
+		return 0; /* doesn't matter, frame will be dropped */
+
+	hdr = (void *)((u8 *)skb->data + le16_to_cpu(rtap->it_len));
+
+	if (!ieee80211_is_data_qos(hdr->frame_control)) {
+		skb->priority = 7;
+		return ieee802_1d_to_ac[skb->priority];
+	}
+
+	p = ieee80211_get_qos_ctl(hdr);
+	skb->priority = *p & IEEE80211_QOS_CTL_TAG1D_MASK;
+
+	return ieee80211_downgrade_queue(local, skb);
+}
+
 static const struct net_device_ops ieee80211_monitorif_ops = {
 	.ndo_open		= ieee80211_open,
 	.ndo_stop		= ieee80211_stop,
@@ -662,6 +700,7 @@ static const struct net_device_ops ieee80211_monitorif_ops = {
 	.ndo_set_multicast_list = ieee80211_set_multicast_list,
 	.ndo_change_mtu 	= ieee80211_change_mtu,
 	.ndo_set_mac_address 	= eth_mac_addr,
+	.ndo_select_queue	= ieee80211_monitor_select_queue,
 };
 
 static void ieee80211_if_setup(struct net_device *dev)
@@ -768,8 +807,8 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
 
 	ASSERT_RTNL();
 
-	ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size,
-			    name, ieee80211_if_setup);
+	ndev = alloc_netdev_mq(sizeof(*sdata) + local->hw.vif_data_size,
+			       name, ieee80211_if_setup, local->hw.queues);
 	if (!ndev)
 		return -ENOMEM;
 	dev_net_set(ndev, wiphy_net(local->hw.wiphy));
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index c79e59f..05a18f4 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -942,7 +942,7 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
 	ieee80211_recalc_ps(local, -1);
 	mutex_unlock(&local->iflist_mtx);
 
-	netif_start_queue(sdata->dev);
+	netif_tx_start_all_queues(sdata->dev);
 	netif_carrier_on(sdata->dev);
 }
 
@@ -1074,7 +1074,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
 	 * time -- we don't want the scan code to enable queues.
 	 */
 
-	netif_stop_queue(sdata->dev);
+	netif_tx_stop_all_queues(sdata->dev);
 	netif_carrier_off(sdata->dev);
 
 	rcu_read_lock();
@@ -1963,7 +1963,9 @@ static void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 			rma = ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len);
 			break;
 		case IEEE80211_STYPE_ACTION:
-			/* XXX: differentiate, can only happen for CSA now! */
+			if (mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT)
+				break;
+
 			ieee80211_sta_process_chanswitch(sdata,
 					&mgmt->u.action.u.chan_switch.sw_elem,
 					ifmgd->associated);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 9f2807a..82a30c1 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1746,7 +1746,9 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
 			memset(info, 0, sizeof(*info));
 			info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
 			info->control.vif = &rx->sdata->vif;
-			ieee80211_select_queue(local, fwd_skb);
+			skb_set_queue_mapping(skb,
+				ieee80211_select_queue(rx->sdata, fwd_skb));
+			ieee80211_set_qos_hdr(local, skb);
 			if (is_multicast_ether_addr(fwd_hdr->addr1))
 				IEEE80211_IFSTA_MESH_CTR_INC(&sdata->u.mesh,
 								fwded_mcast);
@@ -2013,6 +2015,10 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 		}
 		break;
 	default:
+		/* do not process rejected action frames */
+		if (mgmt->u.action.category & 0x80)
+			return RX_DROP_MONITOR;
+
 		return RX_CONTINUE;
 	}
 
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index f1a4c71..f934c96 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -353,10 +353,10 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted)
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 			if (sdata->u.mgd.associated) {
 				ieee80211_scan_ps_disable(sdata);
-				netif_wake_queue(sdata->dev);
+				netif_tx_wake_all_queues(sdata->dev);
 			}
 		} else
-			netif_wake_queue(sdata->dev);
+			netif_tx_wake_all_queues(sdata->dev);
 
 		/* re-enable beaconing */
 		if (sdata->vif.type == NL80211_IFTYPE_AP ||
@@ -411,7 +411,7 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local)
 		 * are handled in the scan state machine
 		 */
 		if (sdata->vif.type != NL80211_IFTYPE_STATION)
-			netif_stop_queue(sdata->dev);
+			netif_tx_stop_all_queues(sdata->dev);
 	}
 	mutex_unlock(&local->iflist_mtx);
 
@@ -575,7 +575,7 @@ static void ieee80211_scan_state_leave_oper_channel(struct ieee80211_local *loca
 			continue;
 
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-			netif_stop_queue(sdata->dev);
+			netif_tx_stop_all_queues(sdata->dev);
 			if (sdata->u.mgd.associated)
 				ieee80211_scan_ps_enable(sdata);
 		}
@@ -610,7 +610,7 @@ static void ieee80211_scan_state_enter_oper_channel(struct ieee80211_local *loca
 		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 			if (sdata->u.mgd.associated)
 				ieee80211_scan_ps_disable(sdata);
-			netif_wake_queue(sdata->dev);
+			netif_tx_wake_all_queues(sdata->dev);
 		}
 	}
 	mutex_unlock(&local->iflist_mtx);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 27ceaef..ac210b5 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1512,7 +1512,7 @@ static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
 				return;
 			}
 
-	ieee80211_select_queue(local, skb);
+	ieee80211_set_qos_hdr(local, skb);
 	ieee80211_tx(sdata, skb, false);
 	rcu_read_unlock();
 }
@@ -2291,6 +2291,9 @@ void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
 	skb_set_network_header(skb, 0);
 	skb_set_transport_header(skb, 0);
 
+	/* send all internal mgmt frames on VO */
+	skb_set_queue_mapping(skb, 0);
+
 	/*
 	 * The other path calling ieee80211_xmit is from the tasklet,
 	 * and while we can handle concurrent transmissions locking
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index dc76267..3848140 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -269,6 +269,7 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
 				   enum queue_stop_reason reason)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
+	struct ieee80211_sub_if_data *sdata;
 
 	if (WARN_ON(queue >= hw->queues))
 		return;
@@ -281,6 +282,11 @@ static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
 
 	if (!skb_queue_empty(&local->pending[queue]))
 		tasklet_schedule(&local->tx_pending_tasklet);
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(sdata, &local->interfaces, list)
+		netif_tx_wake_queue(netdev_get_tx_queue(sdata->dev, queue));
+	rcu_read_unlock();
 }
 
 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
@@ -305,11 +311,17 @@ static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue,
 				   enum queue_stop_reason reason)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
+	struct ieee80211_sub_if_data *sdata;
 
 	if (WARN_ON(queue >= hw->queues))
 		return;
 
 	__set_bit(reason, &local->queue_stop_reasons[queue]);
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(sdata, &local->interfaces, list)
+		netif_tx_stop_queue(netdev_get_tx_queue(sdata->dev, queue));
+	rcu_read_unlock();
 }
 
 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index b19b769..79d887d 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -44,22 +44,69 @@ static int wme_downgrade_ac(struct sk_buff *skb)
 }
 
 
-/* Indicate which queue to use.  */
-static u16 classify80211(struct ieee80211_local *local, struct sk_buff *skb)
+/* Indicate which queue to use. */
+u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
+			   struct sk_buff *skb)
 {
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	struct ieee80211_local *local = sdata->local;
+	struct sta_info *sta = NULL;
+	u32 sta_flags = 0;
+	const u8 *ra = NULL;
+	bool qos = false;
 
-	if (!ieee80211_is_data(hdr->frame_control)) {
-		/* management frames go on AC_VO queue, but are sent
-		* without QoS control fields */
-		return 0;
+	if (local->hw.queues < 4 || skb->len < 6) {
+		skb->priority = 0; /* required for correct WPA/11i MIC */
+		return min_t(u16, local->hw.queues - 1,
+			     ieee802_1d_to_ac[skb->priority]);
+	}
+
+	rcu_read_lock();
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_AP_VLAN:
+		rcu_read_lock();
+		sta = rcu_dereference(sdata->u.vlan.sta);
+		if (sta)
+			sta_flags = get_sta_flags(sta);
+		rcu_read_unlock();
+		if (sta)
+			break;
+	case NL80211_IFTYPE_AP:
+		ra = skb->data;
+		break;
+	case NL80211_IFTYPE_WDS:
+		ra = sdata->u.wds.remote_addr;
+		break;
+#ifdef CONFIG_MAC80211_MESH
+	case NL80211_IFTYPE_MESH_POINT:
+		/*
+		 * XXX: This is clearly broken ... but already was before,
+		 * because ieee80211_fill_mesh_addresses() would clear A1
+		 * except for multicast addresses.
+		 */
+		break;
+#endif
+	case NL80211_IFTYPE_STATION:
+		ra = sdata->u.mgd.bssid;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		ra = skb->data;
+		break;
+	default:
+		break;
 	}
 
-	if (0 /* injected */) {
-		/* use AC from radiotap */
+	if (!sta && ra && !is_multicast_ether_addr(ra)) {
+		sta = sta_info_get(local, ra);
+		if (sta)
+			sta_flags = get_sta_flags(sta);
 	}
 
-	if (!ieee80211_is_data_qos(hdr->frame_control)) {
+	if (sta_flags & WLAN_STA_WME)
+		qos = true;
+
+	rcu_read_unlock();
+
+	if (!qos) {
 		skb->priority = 0; /* required for correct WPA/11i MIC */
 		return ieee802_1d_to_ac[skb->priority];
 	}
@@ -68,6 +115,12 @@ static u16 classify80211(struct ieee80211_local *local, struct sk_buff *skb)
 	 * data frame has */
 	skb->priority = cfg80211_classify8021d(skb);
 
+	return ieee80211_downgrade_queue(local, skb);
+}
+
+u16 ieee80211_downgrade_queue(struct ieee80211_local *local,
+			      struct sk_buff *skb)
+{
 	/* in case we are a client verify acm is not set for this ac */
 	while (unlikely(local->wmm_acm & BIT(skb->priority))) {
 		if (wme_downgrade_ac(skb)) {
@@ -85,24 +138,17 @@ static u16 classify80211(struct ieee80211_local *local, struct sk_buff *skb)
 	return ieee802_1d_to_ac[skb->priority];
 }
 
-void ieee80211_select_queue(struct ieee80211_local *local, struct sk_buff *skb)
+void ieee80211_set_qos_hdr(struct ieee80211_local *local, struct sk_buff *skb)
 {
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	u16 queue;
-	u8 tid;
-
-	queue = classify80211(local, skb);
-	if (unlikely(queue >= local->hw.queues))
-		queue = local->hw.queues - 1;
-
-	/*
-	 * Now we know the 1d priority, fill in the QoS header if
-	 * there is one (and we haven't done this before).
-	 */
+	struct ieee80211_hdr *hdr = (void *)skb->data;
+
+	/* Fill in the QoS header if there is one. */
 	if (ieee80211_is_data_qos(hdr->frame_control)) {
 		u8 *p = ieee80211_get_qos_ctl(hdr);
-		u8 ack_policy = 0;
+		u8 ack_policy = 0, tid;
+
 		tid = skb->priority & IEEE80211_QOS_CTL_TAG1D_MASK;
+
 		if (unlikely(local->wifi_wme_noack_test))
 			ack_policy |= QOS_CONTROL_ACK_POLICY_NOACK <<
 					QOS_CONTROL_ACK_POLICY_SHIFT;
@@ -110,6 +156,4 @@ void ieee80211_select_queue(struct ieee80211_local *local, struct sk_buff *skb)
 		*p++ = ack_policy | tid;
 		*p = 0;
 	}
-
-	skb_set_queue_mapping(skb, queue);
 }
diff --git a/net/mac80211/wme.h b/net/mac80211/wme.h
index d4fd87c..6053b1c 100644
--- a/net/mac80211/wme.h
+++ b/net/mac80211/wme.h
@@ -20,7 +20,11 @@
 
 extern const int ieee802_1d_to_ac[8];
 
-void ieee80211_select_queue(struct ieee80211_local *local,
-			    struct sk_buff *skb);
+u16 ieee80211_select_queue(struct ieee80211_sub_if_data *sdata,
+			   struct sk_buff *skb);
+void ieee80211_set_qos_hdr(struct ieee80211_local *local, struct sk_buff *skb);
+u16 ieee80211_downgrade_queue(struct ieee80211_local *local,
+                              struct sk_buff *skb);
+
 
 #endif /* _WME_H */
diff --git a/net/wireless/core.c b/net/wireless/core.c
index c2a2c56..92b8124 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -745,9 +745,9 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
 			mutex_unlock(&rdev->devlist_mtx);
 			dev_put(dev);
 		}
-#ifdef CONFIG_CFG80211_WEXT
 		cfg80211_lock_rdev(rdev);
 		mutex_lock(&rdev->devlist_mtx);
+#ifdef CONFIG_CFG80211_WEXT
 		wdev_lock(wdev);
 		switch (wdev->iftype) {
 		case NL80211_IFTYPE_ADHOC:
@@ -760,10 +760,10 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
 			break;
 		}
 		wdev_unlock(wdev);
+#endif
 		rdev->opencount++;
 		mutex_unlock(&rdev->devlist_mtx);
 		cfg80211_unlock_rdev(rdev);
-#endif
 		break;
 	case NETDEV_UNREGISTER:
 		/*
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index baa898a..7a0754c 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1690,7 +1690,7 @@ int regulatory_hint_user(const char *alpha2)
 	request->wiphy_idx = WIPHY_IDX_STALE;
 	request->alpha2[0] = alpha2[0];
 	request->alpha2[1] = alpha2[1];
-	request->initiator = NL80211_REGDOM_SET_BY_USER,
+	request->initiator = NL80211_REGDOM_SET_BY_USER;
 
 	queue_regulatory_request(request);