Merge branch 'master' into for-next

Sync with Linus tree to have 157550ff ("mtd: add GPMI-NAND driver
in the config and Makefile") as I have patch depending on that one.

16 files changed, 600 insertions, 305 deletions

diff --git a/drivers/net/wireless/libertas/README b/drivers/net/wireless/libertas/README
index 1453eec82a9..91f2ca90c70 100644
--- a/drivers/net/wireless/libertas/README
+++ b/drivers/net/wireless/libertas/README
@@ -238,28 +238,3 @@ hostsleep
 		echo "1" > hostsleep : enable host sleep.
 		echo "0" > hostsleep : disable host sleep
 
-========================
-IWCONFIG COMMANDS
-========================
-power period
-
-	This command is used to configure the station in deep sleep mode /
-	auto deep sleep mode.
-
-	The timer is implemented to monitor the activities (command, event,
-	etc.). When an activity is detected station will exit from deep
-	sleep mode automatically and restart the timer. At timer expiry
-	(no activity for defined time period) the deep sleep mode is entered
-	automatically.
-
-	Note: this command is for SDIO interface only.
-
-	Usage:
-	To enable deep sleep mode do:
-		iwconfig wlan0 power period 0
-	To enable auto deep sleep mode with idle time period 5 seconds do:
-		iwconfig wlan0 power period 5
-	To disable deep sleep/auto deep sleep mode do:
-		iwconfig wlan0 power period -1
-
-==============================================================================
diff --git a/drivers/net/wireless/libertas/cfg.c b/drivers/net/wireless/libertas/cfg.c
index b456a53b64b..4fcd653bddc 100644
--- a/drivers/net/wireless/libertas/cfg.c
+++ b/drivers/net/wireless/libertas/cfg.c
@@ -19,6 +19,7 @@
 #include "decl.h"
 #include "cfg.h"
 #include "cmd.h"
+#include "mesh.h"
 
 
 #define CHAN2G(_channel, _freq, _flags) {        \
@@ -442,13 +443,16 @@ static int lbs_cfg_set_channel(struct wiphy *wiphy,
 	struct lbs_private *priv = wiphy_priv(wiphy);
 	int ret = -ENOTSUPP;
 
-	lbs_deb_enter_args(LBS_DEB_CFG80211, "freq %d, type %d",
-			   channel->center_freq, channel_type);
+	lbs_deb_enter_args(LBS_DEB_CFG80211, "iface %s freq %d, type %d",
+			   netdev_name(netdev), channel->center_freq, channel_type);
 
 	if (channel_type != NL80211_CHAN_NO_HT)
 		goto out;
 
-	ret = lbs_set_channel(priv, channel->hw_value);
+	if (netdev == priv->mesh_dev)
+		ret = lbs_mesh_set_channel(priv, channel->hw_value);
+	else
+		ret = lbs_set_channel(priv, channel->hw_value);
 
  out:
 	lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret);
@@ -691,7 +695,7 @@ static void lbs_scan_worker(struct work_struct *work)
 	tlv = scan_cmd->tlvbuffer;
 
 	/* add SSID TLV */
-	if (priv->scan_req->n_ssids)
+	if (priv->scan_req->n_ssids && priv->scan_req->ssids[0].ssid_len > 0)
 		tlv += lbs_add_ssid_tlv(tlv,
 					priv->scan_req->ssids[0].ssid,
 					priv->scan_req->ssids[0].ssid_len);
@@ -708,7 +712,7 @@ static void lbs_scan_worker(struct work_struct *work)
 
 	if (priv->scan_channel < priv->scan_req->n_channels) {
 		cancel_delayed_work(&priv->scan_work);
-		if (!priv->stopping)
+		if (netif_running(priv->dev))
 			queue_delayed_work(priv->work_thread, &priv->scan_work,
 				msecs_to_jiffies(300));
 	}
@@ -724,16 +728,9 @@ static void lbs_scan_worker(struct work_struct *work)
 		le16_to_cpu(scan_cmd->hdr.size),
 		lbs_ret_scan, 0);
 
-	if (priv->scan_channel >= priv->scan_req->n_channels) {
+	if (priv->scan_channel >= priv->scan_req->n_channels)
 		/* Mark scan done */
-		if (priv->internal_scan)
-			kfree(priv->scan_req);
-		else
-			cfg80211_scan_done(priv->scan_req, false);
-
-		priv->scan_req = NULL;
-		priv->last_scan = jiffies;
-	}
+		lbs_scan_done(priv);
 
 	/* Restart network */
 	if (carrier)
@@ -771,6 +768,21 @@ static void _internal_start_scan(struct lbs_private *priv, bool internal,
 	lbs_deb_leave(LBS_DEB_CFG80211);
 }
 
+/*
+ * Clean up priv->scan_req.  Should be used to handle the allocation details.
+ */
+void lbs_scan_done(struct lbs_private *priv)
+{
+	WARN_ON(!priv->scan_req);
+
+	if (priv->internal_scan)
+		kfree(priv->scan_req);
+	else
+		cfg80211_scan_done(priv->scan_req, false);
+
+	priv->scan_req = NULL;
+}
+
 static int lbs_cfg_scan(struct wiphy *wiphy,
 	struct net_device *dev,
 	struct cfg80211_scan_request *request)
@@ -1292,27 +1304,32 @@ static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
 	int ret = 0;
 	u8 preamble = RADIO_PREAMBLE_SHORT;
 
+	if (dev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
 	lbs_deb_enter(LBS_DEB_CFG80211);
 
 	if (!sme->bssid) {
-		/* Run a scan if one isn't in-progress already and if the last
-		 * scan was done more than 2 seconds ago.
-		 */
-		if (priv->scan_req == NULL &&
-		    time_after(jiffies, priv->last_scan + (2 * HZ))) {
-			struct cfg80211_scan_request *creq;
+		struct cfg80211_scan_request *creq;
 
-			creq = _new_connect_scan_req(wiphy, sme);
-			if (!creq) {
-				ret = -EINVAL;
-				goto done;
-			}
+		/*
+		 * Scan for the requested network after waiting for existing
+		 * scans to finish.
+		 */
+		lbs_deb_assoc("assoc: waiting for existing scans\n");
+		wait_event_interruptible_timeout(priv->scan_q,
+						 (priv->scan_req == NULL),
+						 (15 * HZ));
 
-			lbs_deb_assoc("assoc: scanning for compatible AP\n");
-			_internal_start_scan(priv, true, creq);
+		creq = _new_connect_scan_req(wiphy, sme);
+		if (!creq) {
+			ret = -EINVAL;
+			goto done;
 		}
 
-		/* Wait for any in-progress scan to complete */
+		lbs_deb_assoc("assoc: scanning for compatible AP\n");
+		_internal_start_scan(priv, true, creq);
+
 		lbs_deb_assoc("assoc: waiting for scan to complete\n");
 		wait_event_interruptible_timeout(priv->scan_q,
 						 (priv->scan_req == NULL),
@@ -1402,28 +1419,23 @@ static int lbs_cfg_connect(struct wiphy *wiphy, struct net_device *dev,
 	return ret;
 }
 
-static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
-	u16 reason_code)
+int lbs_disconnect(struct lbs_private *priv, u16 reason)
 {
-	struct lbs_private *priv = wiphy_priv(wiphy);
 	struct cmd_ds_802_11_deauthenticate cmd;
-
-	lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code);
-
-	/* store for lbs_cfg_ret_disconnect() */
-	priv->disassoc_reason = reason_code;
+	int ret;
 
 	memset(&cmd, 0, sizeof(cmd));
 	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 	/* Mildly ugly to use a locally store my own BSSID ... */
 	memcpy(cmd.macaddr, &priv->assoc_bss, ETH_ALEN);
-	cmd.reasoncode = cpu_to_le16(reason_code);
+	cmd.reasoncode = cpu_to_le16(reason);
 
-	if (lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd))
-		return -EFAULT;
+	ret = lbs_cmd_with_response(priv, CMD_802_11_DEAUTHENTICATE, &cmd);
+	if (ret)
+		return ret;
 
 	cfg80211_disconnected(priv->dev,
-			priv->disassoc_reason,
+			reason,
 			NULL, 0,
 			GFP_KERNEL);
 	priv->connect_status = LBS_DISCONNECTED;
@@ -1431,6 +1443,21 @@ static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
 	return 0;
 }
 
+static int lbs_cfg_disconnect(struct wiphy *wiphy, struct net_device *dev,
+	u16 reason_code)
+{
+	struct lbs_private *priv = wiphy_priv(wiphy);
+
+	if (dev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
+	lbs_deb_enter_args(LBS_DEB_CFG80211, "reason_code %d", reason_code);
+
+	/* store for lbs_cfg_ret_disconnect() */
+	priv->disassoc_reason = reason_code;
+
+	return lbs_disconnect(priv, reason_code);
+}
 
 static int lbs_cfg_set_default_key(struct wiphy *wiphy,
 				   struct net_device *netdev,
@@ -1439,6 +1466,9 @@ static int lbs_cfg_set_default_key(struct wiphy *wiphy,
 {
 	struct lbs_private *priv = wiphy_priv(wiphy);
 
+	if (netdev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
 	lbs_deb_enter(LBS_DEB_CFG80211);
 
 	if (key_index != priv->wep_tx_key) {
@@ -1460,6 +1490,9 @@ static int lbs_cfg_add_key(struct wiphy *wiphy, struct net_device *netdev,
 	u16 key_type;
 	int ret = 0;
 
+	if (netdev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
 	lbs_deb_enter(LBS_DEB_CFG80211);
 
 	lbs_deb_assoc("add_key: cipher 0x%x, mac_addr %pM\n",
@@ -1603,6 +1636,9 @@ static int lbs_get_survey(struct wiphy *wiphy, struct net_device *dev,
 	s8 signal, noise;
 	int ret;
 
+	if (dev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
 	if (idx != 0)
 		ret = -ENOENT;
 
@@ -1636,28 +1672,23 @@ static int lbs_change_intf(struct wiphy *wiphy, struct net_device *dev,
 	struct lbs_private *priv = wiphy_priv(wiphy);
 	int ret = 0;
 
-	lbs_deb_enter(LBS_DEB_CFG80211);
+	if (dev == priv->mesh_dev)
+		return -EOPNOTSUPP;
 
 	switch (type) {
 	case NL80211_IFTYPE_MONITOR:
-		ret = lbs_set_monitor_mode(priv, 1);
-		break;
 	case NL80211_IFTYPE_STATION:
-		if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
-			ret = lbs_set_monitor_mode(priv, 0);
-		if (!ret)
-			ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1);
-		break;
 	case NL80211_IFTYPE_ADHOC:
-		if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
-			ret = lbs_set_monitor_mode(priv, 0);
-		if (!ret)
-			ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2);
 		break;
 	default:
-		ret = -ENOTSUPP;
+		return -EOPNOTSUPP;
 	}
 
+	lbs_deb_enter(LBS_DEB_CFG80211);
+
+	if (priv->iface_running)
+		ret = lbs_set_iface_type(priv, type);
+
 	if (!ret)
 		priv->wdev->iftype = type;
 
@@ -1959,6 +1990,9 @@ static int lbs_join_ibss(struct wiphy *wiphy, struct net_device *dev,
 	struct cfg80211_bss *bss;
 	DECLARE_SSID_BUF(ssid_buf);
 
+	if (dev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
 	lbs_deb_enter(LBS_DEB_CFG80211);
 
 	if (!params->channel) {
@@ -1995,6 +2029,9 @@ static int lbs_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
 	struct cmd_ds_802_11_ad_hoc_stop cmd;
 	int ret = 0;
 
+	if (dev == priv->mesh_dev)
+		return -EOPNOTSUPP;
+
 	lbs_deb_enter(LBS_DEB_CFG80211);
 
 	memset(&cmd, 0, sizeof(cmd));
@@ -2117,6 +2154,8 @@ int lbs_cfg_register(struct lbs_private *priv)
 			BIT(NL80211_IFTYPE_ADHOC);
 	if (lbs_rtap_supported(priv))
 		wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
+	if (lbs_mesh_activated(priv))
+		wdev->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MESH_POINT);
 
 	wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &lbs_band_2ghz;
 
diff --git a/drivers/net/wireless/libertas/cfg.h b/drivers/net/wireless/libertas/cfg.h
index 4f46bb744be..558168ce634 100644
--- a/drivers/net/wireless/libertas/cfg.h
+++ b/drivers/net/wireless/libertas/cfg.h
@@ -16,6 +16,8 @@ int lbs_reg_notifier(struct wiphy *wiphy,
 void lbs_send_disconnect_notification(struct lbs_private *priv);
 void lbs_send_mic_failureevent(struct lbs_private *priv, u32 event);
 
+void lbs_scan_done(struct lbs_private *priv);
 void lbs_scan_deinit(struct lbs_private *priv);
+int lbs_disconnect(struct lbs_private *priv, u16 reason);
 
 #endif
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index dbd24a4607e..d798bcc0d83 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -8,6 +8,7 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/if_arp.h>
+#include <linux/export.h>
 
 #include "decl.h"
 #include "cfg.h"
@@ -1088,7 +1089,7 @@ void __lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
 	if (!cmd->callback || cmd->callback == lbs_cmd_async_callback)
 		__lbs_cleanup_and_insert_cmd(priv, cmd);
 	priv->cur_cmd = NULL;
-	wake_up_interruptible(&priv->waitq);
+	wake_up(&priv->waitq);
 }
 
 void lbs_complete_command(struct lbs_private *priv, struct cmd_ctrl_node *cmd,
@@ -1627,7 +1628,7 @@ struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
 		lbs_deb_host("PREP_CMD: cmdnode is NULL\n");
 
 		/* Wake up main thread to execute next command */
-		wake_up_interruptible(&priv->waitq);
+		wake_up(&priv->waitq);
 		cmdnode = ERR_PTR(-ENOBUFS);
 		goto done;
 	}
@@ -1647,7 +1648,7 @@ struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv,
 
 	cmdnode->cmdwaitqwoken = 0;
 	lbs_queue_cmd(priv, cmdnode);
-	wake_up_interruptible(&priv->waitq);
+	wake_up(&priv->waitq);
 
  done:
 	lbs_deb_leave_args(LBS_DEB_HOST, "ret %p", cmdnode);
diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
index 1af18277884..d8d8f0d0899 100644
--- a/drivers/net/wireless/libertas/debugfs.c
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -5,6 +5,7 @@
 #include <linux/mm.h>
 #include <linux/string.h>
 #include <linux/slab.h>
+#include <linux/export.h>
 
 #include "decl.h"
 #include "cmd.h"
diff --git a/drivers/net/wireless/libertas/decl.h b/drivers/net/wireless/libertas/decl.h
index da0b05bb89f..bc951ab4b68 100644
--- a/drivers/net/wireless/libertas/decl.h
+++ b/drivers/net/wireless/libertas/decl.h
@@ -9,6 +9,7 @@
 
 #include <linux/netdevice.h>
 #include <linux/firmware.h>
+#include <linux/nl80211.h>
 
 /* Should be terminated by a NULL entry */
 struct lbs_fw_table {
@@ -43,10 +44,15 @@ int lbs_start_card(struct lbs_private *priv);
 void lbs_stop_card(struct lbs_private *priv);
 void lbs_host_to_card_done(struct lbs_private *priv);
 
+int lbs_start_iface(struct lbs_private *priv);
+int lbs_stop_iface(struct lbs_private *priv);
+int lbs_set_iface_type(struct lbs_private *priv, enum nl80211_iftype type);
+
 int lbs_rtap_supported(struct lbs_private *priv);
 
 int lbs_set_mac_address(struct net_device *dev, void *addr);
 void lbs_set_multicast_list(struct net_device *dev);
+void lbs_update_mcast(struct lbs_private *priv);
 
 int lbs_suspend(struct lbs_private *priv);
 int lbs_resume(struct lbs_private *priv);
diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
index adb3490e3cf..f3fd447131c 100644
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -6,7 +6,6 @@
 #ifndef _LBS_DEV_H_
 #define _LBS_DEV_H_
 
-#include "mesh.h"
 #include "defs.h"
 #include "host.h"
 
@@ -22,6 +21,17 @@ struct sleep_params {
 	uint16_t sp_reserved;
 };
 
+/* Mesh statistics */
+struct lbs_mesh_stats {
+	u32	fwd_bcast_cnt;		/* Fwd: Broadcast counter */
+	u32	fwd_unicast_cnt;	/* Fwd: Unicast counter */
+	u32	fwd_drop_ttl;		/* Fwd: TTL zero */
+	u32	fwd_drop_rbt;		/* Fwd: Recently Broadcasted */
+	u32	fwd_drop_noroute; 	/* Fwd: No route to Destination */
+	u32	fwd_drop_nobuf;		/* Fwd: Run out of internal buffers */
+	u32	drop_blind;		/* Rx:  Dropped by blinding table */
+	u32	tx_failed_cnt;		/* Tx:  Failed transmissions */
+};
 
 /* Private structure for the MV device */
 struct lbs_private {
@@ -36,7 +46,6 @@ struct lbs_private {
 	/* CFG80211 */
 	struct wireless_dev *wdev;
 	bool wiphy_registered;
-	bool stopping;
 	struct cfg80211_scan_request *scan_req;
 	u8 assoc_bss[ETH_ALEN];
 	u8 disassoc_reason;
@@ -86,11 +95,14 @@ struct lbs_private {
 
 	/* Hardware access */
 	void *card;
+	bool iface_running;
 	u8 fw_ready;
 	u8 surpriseremoved;
 	u8 setup_fw_on_resume;
 	int (*hw_host_to_card) (struct lbs_private *priv, u8 type, u8 *payload, u16 nb);
 	void (*reset_card) (struct lbs_private *priv);
+	int (*power_save) (struct lbs_private *priv);
+	int (*power_restore) (struct lbs_private *priv);
 	int (*enter_deep_sleep) (struct lbs_private *priv);
 	int (*exit_deep_sleep) (struct lbs_private *priv);
 	int (*reset_deep_sleep_wakeup) (struct lbs_private *priv);
@@ -146,6 +158,7 @@ struct lbs_private {
 	/* protected by hard_start_xmit serialization */
 	u8 txretrycount;
 	struct sk_buff *currenttxskb;
+	struct timer_list tx_lockup_timer;
 
 	/* Locks */
 	struct mutex lock;
@@ -167,9 +180,20 @@ struct lbs_private {
 	wait_queue_head_t scan_q;
 	/* Whether the scan was initiated internally and not by cfg80211 */
 	bool internal_scan;
-	unsigned long last_scan;
 };
 
 extern struct cmd_confirm_sleep confirm_sleep;
 
+/* Check if there is an interface active. */
+static inline int lbs_iface_active(struct lbs_private *priv)
+{
+	int r;
+
+	r = netif_running(priv->dev);
+	if (priv->mesh_dev)
+		r |= netif_running(priv->mesh_dev);
+
+	return r;
+}
+
 #endif
diff --git a/drivers/net/wireless/libertas/ethtool.c b/drivers/net/wireless/libertas/ethtool.c
index 4dfb3bfd2cf..885ddc1c4fe 100644
--- a/drivers/net/wireless/libertas/ethtool.c
+++ b/drivers/net/wireless/libertas/ethtool.c
@@ -5,6 +5,7 @@
 
 #include "decl.h"
 #include "cmd.h"
+#include "mesh.h"
 
 
 static void lbs_ethtool_get_drvinfo(struct net_device *dev,
diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c
index 387786e1b39..9804ebc892d 100644
--- a/drivers/net/wireless/libertas/if_sdio.c
+++ b/drivers/net/wireless/libertas/if_sdio.c
@@ -29,7 +29,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kernel.h>
-#include <linux/moduleparam.h>
+#include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/firmware.h>
 #include <linux/netdevice.h>
@@ -39,6 +39,7 @@
 #include <linux/mmc/sdio_ids.h>
 #include <linux/mmc/sdio.h>
 #include <linux/mmc/host.h>
+#include <linux/pm_runtime.h>
 
 #include "host.h"
 #include "decl.h"
@@ -47,6 +48,8 @@
 #include "cmd.h"
 #include "if_sdio.h"
 
+static void if_sdio_interrupt(struct sdio_func *func);
+
 /* The if_sdio_remove() callback function is called when
  * user removes this module from kernel space or ejects
  * the card from the slot. The driver handles these 2 cases
@@ -757,6 +760,136 @@ out:
 	return ret;
 }
 
+/********************************************************************/
+/* Power management                                                 */
+/********************************************************************/
+
+static int if_sdio_power_on(struct if_sdio_card *card)
+{
+	struct sdio_func *func = card->func;
+	struct lbs_private *priv = card->priv;
+	struct mmc_host *host = func->card->host;
+	int ret;
+
+	sdio_claim_host(func);
+
+	ret = sdio_enable_func(func);
+	if (ret)
+		goto release;
+
+	/* For 1-bit transfers to the 8686 model, we need to enable the
+	 * interrupt flag in the CCCR register. Set the MMC_QUIRK_LENIENT_FN0
+	 * bit to allow access to non-vendor registers. */
+	if ((card->model == MODEL_8686) &&
+	    (host->caps & MMC_CAP_SDIO_IRQ) &&
+	    (host->ios.bus_width == MMC_BUS_WIDTH_1)) {
+		u8 reg;
+
+		func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
+		reg = sdio_f0_readb(func, SDIO_CCCR_IF, &ret);
+		if (ret)
+			goto disable;
+
+		reg |= SDIO_BUS_ECSI;
+		sdio_f0_writeb(func, reg, SDIO_CCCR_IF, &ret);
+		if (ret)
+			goto disable;
+	}
+
+	card->ioport = sdio_readb(func, IF_SDIO_IOPORT, &ret);
+	if (ret)
+		goto disable;
+
+	card->ioport |= sdio_readb(func, IF_SDIO_IOPORT + 1, &ret) << 8;
+	if (ret)
+		goto disable;
+
+	card->ioport |= sdio_readb(func, IF_SDIO_IOPORT + 2, &ret) << 16;
+	if (ret)
+		goto disable;
+
+	sdio_release_host(func);
+	ret = if_sdio_prog_firmware(card);
+	sdio_claim_host(func);
+	if (ret)
+		goto disable;
+
+	/*
+	 * Get rx_unit if the chip is SD8688 or newer.
+	 * SD8385 & SD8686 do not have rx_unit.
+	 */
+	if ((card->model != MODEL_8385)
+			&& (card->model != MODEL_8686))
+		card->rx_unit = if_sdio_read_rx_unit(card);
+	else
+		card->rx_unit = 0;
+
+	/*
+	 * Set up the interrupt handler late.
+	 *
+	 * If we set it up earlier, the (buggy) hardware generates a spurious
+	 * interrupt, even before the interrupt has been enabled, with
+	 * CCCR_INTx = 0.
+	 *
+	 * We register the interrupt handler late so that we can handle any
+	 * spurious interrupts, and also to avoid generation of that known
+	 * spurious interrupt in the first place.
+	 */
+	ret = sdio_claim_irq(func, if_sdio_interrupt);
+	if (ret)
+		goto disable;
+
+	/*
+	 * Enable interrupts now that everything is set up
+	 */
+	sdio_writeb(func, 0x0f, IF_SDIO_H_INT_MASK, &ret);
+	if (ret)
+		goto release_irq;
+
+	sdio_release_host(func);
+
+	/*
+	 * FUNC_INIT is required for SD8688 WLAN/BT multiple functions
+	 */
+	if (card->model == MODEL_8688) {
+		struct cmd_header cmd;
+
+		memset(&cmd, 0, sizeof(cmd));
+
+		lbs_deb_sdio("send function INIT command\n");
+		if (__lbs_cmd(priv, CMD_FUNC_INIT, &cmd, sizeof(cmd),
+				lbs_cmd_copyback, (unsigned long) &cmd))
+			netdev_alert(priv->dev, "CMD_FUNC_INIT cmd failed\n");
+	}
+
+	priv->fw_ready = 1;
+
+	return 0;
+
+release_irq:
+	sdio_release_irq(func);
+disable:
+	sdio_disable_func(func);
+release:
+	sdio_release_host(func);
+	return ret;
+}
+
+static int if_sdio_power_off(struct if_sdio_card *card)
+{
+	struct sdio_func *func = card->func;
+	struct lbs_private *priv = card->priv;
+
+	priv->fw_ready = 0;
+
+	sdio_claim_host(func);
+	sdio_release_irq(func);
+	sdio_disable_func(func);
+	sdio_release_host(func);
+	return 0;
+}
+
+
 /*******************************************************************/
 /* Libertas callbacks                                              */
 /*******************************************************************/
@@ -923,6 +1056,32 @@ static void if_sdio_reset_card(struct lbs_private *priv)
 	schedule_work(&card_reset_work);
 }
 
+static int if_sdio_power_save(struct lbs_private *priv)
+{
+	struct if_sdio_card *card = priv->card;
+	int ret;
+
+	flush_workqueue(card->workqueue);
+
+	ret = if_sdio_power_off(card);
+
+	/* Let runtime PM know the card is powered off */
+	pm_runtime_put_sync(&card->func->dev);
+
+	return ret;
+}
+
+static int if_sdio_power_restore(struct lbs_private *priv)
+{
+	struct if_sdio_card *card = priv->card;
+
+	/* Make sure the card will not be powered off by runtime PM */
+	pm_runtime_get_sync(&card->func->dev);
+
+	return if_sdio_power_on(card);
+}
+
+
 /*******************************************************************/
 /* SDIO callbacks                                                  */
 /*******************************************************************/
@@ -976,7 +1135,6 @@ static int if_sdio_probe(struct sdio_func *func,
 	int ret, i;
 	unsigned int model;
 	struct if_sdio_packet *packet;
-	struct mmc_host *host = func->card->host;
 
 	lbs_deb_enter(LBS_DEB_SDIO);
 
@@ -1033,45 +1191,6 @@ static int if_sdio_probe(struct sdio_func *func,
 		goto free;
 	}
 
-	sdio_claim_host(func);
-
-	ret = sdio_enable_func(func);
-	if (ret)
-		goto release;
-
-	/* For 1-bit transfers to the 8686 model, we need to enable the
-	 * interrupt flag in the CCCR register. Set the MMC_QUIRK_LENIENT_FN0
-	 * bit to allow access to non-vendor registers. */
-	if ((card->model == MODEL_8686) &&
-	    (host->caps & MMC_CAP_SDIO_IRQ) &&
-	    (host->ios.bus_width == MMC_BUS_WIDTH_1)) {
-		u8 reg;
-
-		func->card->quirks |= MMC_QUIRK_LENIENT_FN0;
-		reg = sdio_f0_readb(func, SDIO_CCCR_IF, &ret);
-		if (ret)
-			goto release_int;
-
-		reg |= SDIO_BUS_ECSI;
-		sdio_f0_writeb(func, reg, SDIO_CCCR_IF, &ret);
-		if (ret)
-			goto release_int;
-	}
-
-	card->ioport = sdio_readb(func, IF_SDIO_IOPORT, &ret);
-	if (ret)
-		goto release_int;
-
-	card->ioport |= sdio_readb(func, IF_SDIO_IOPORT + 1, &ret) << 8;
-	if (ret)
-		goto release_int;
-
-	card->ioport |= sdio_readb(func, IF_SDIO_IOPORT + 2, &ret) << 16;
-	if (ret)
-		goto release_int;
-
-	sdio_release_host(func);
-
 	sdio_set_drvdata(func, card);
 
 	lbs_deb_sdio("class = 0x%X, vendor = 0x%X, "
@@ -1079,14 +1198,11 @@ static int if_sdio_probe(struct sdio_func *func,
 			func->class, func->vendor, func->device,
 			model, (unsigned)card->ioport);
 
-	ret = if_sdio_prog_firmware(card);
-	if (ret)
-		goto reclaim;
 
 	priv = lbs_add_card(card, &func->dev);
 	if (!priv) {
 		ret = -ENOMEM;
-		goto reclaim;
+		goto free;
 	}
 
 	card->priv = priv;
@@ -1097,62 +1213,21 @@ static int if_sdio_probe(struct sdio_func *func,
 	priv->exit_deep_sleep = if_sdio_exit_deep_sleep;
 	priv->reset_deep_sleep_wakeup = if_sdio_reset_deep_sleep_wakeup;
 	priv->reset_card = if_sdio_reset_card;
+	priv->power_save = if_sdio_power_save;
+	priv->power_restore = if_sdio_power_restore;
 
-	sdio_claim_host(func);
-
-	/*
-	 * Get rx_unit if the chip is SD8688 or newer.
-	 * SD8385 & SD8686 do not have rx_unit.
-	 */
-	if ((card->model != MODEL_8385)
-			&& (card->model != MODEL_8686))
-		card->rx_unit = if_sdio_read_rx_unit(card);
-	else
-		card->rx_unit = 0;
-
-	/*
-	 * Set up the interrupt handler late.
-	 *
-	 * If we set it up earlier, the (buggy) hardware generates a spurious
-	 * interrupt, even before the interrupt has been enabled, with
-	 * CCCR_INTx = 0.
-	 *
-	 * We register the interrupt handler late so that we can handle any
-	 * spurious interrupts, and also to avoid generation of that known
-	 * spurious interrupt in the first place.
-	 */
-	ret = sdio_claim_irq(func, if_sdio_interrupt);
-	if (ret)
-		goto disable;
-
-	/*
-	 * Enable interrupts now that everything is set up
-	 */
-	sdio_writeb(func, 0x0f, IF_SDIO_H_INT_MASK, &ret);
-	sdio_release_host(func);
+	ret = if_sdio_power_on(card);
 	if (ret)
-		goto reclaim;
-
-	priv->fw_ready = 1;
-
-	/*
-	 * FUNC_INIT is required for SD8688 WLAN/BT multiple functions
-	 */
-	if (card->model == MODEL_8688) {
-		struct cmd_header cmd;
-
-		memset(&cmd, 0, sizeof(cmd));
-
-		lbs_deb_sdio("send function INIT command\n");
-		if (__lbs_cmd(priv, CMD_FUNC_INIT, &cmd, sizeof(cmd),
-				lbs_cmd_copyback, (unsigned long) &cmd))
-			netdev_alert(priv->dev, "CMD_FUNC_INIT cmd failed\n");
-	}
+		goto err_activate_card;
 
 	ret = lbs_start_card(priv);
+	if_sdio_power_off(card);
 	if (ret)
 		goto err_activate_card;
 
+	/* Tell PM core that we don't need the card to be powered now */
+	pm_runtime_put_noidle(&func->dev);
+
 out:
 	lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret);
 
@@ -1161,14 +1236,6 @@ out:
 err_activate_card:
 	flush_workqueue(card->workqueue);
 	lbs_remove_card(priv);
-reclaim:
-	sdio_claim_host(func);
-release_int:
-	sdio_release_irq(func);
-disable:
-	sdio_disable_func(func);
-release:
-	sdio_release_host(func);
 free:
 	destroy_workqueue(card->workqueue);
 	while (card->packets) {
@@ -1195,6 +1262,9 @@ static void if_sdio_remove(struct sdio_func *func)
 
 	card = sdio_get_drvdata(func);
 
+	/* Undo decrement done above in if_sdio_probe */
+	pm_runtime_get_noresume(&func->dev);
+
 	if (user_rmmod && (card->model == MODEL_8688)) {
 		/*
 		 * FUNC_SHUTDOWN is required for SD8688 WLAN/BT
@@ -1219,11 +1289,6 @@ static void if_sdio_remove(struct sdio_func *func)
 	flush_workqueue(card->workqueue);
 	destroy_workqueue(card->workqueue);
 
-	sdio_claim_host(func);
-	sdio_release_irq(func);
-	sdio_disable_func(func);
-	sdio_release_host(func);
-
 	while (card->packets) {
 		packet = card->packets;
 		card->packets = card->packets->next;
diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
index e0286cfbc91..11b69b300dc 100644
--- a/drivers/net/wireless/libertas/if_spi.c
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -21,7 +21,7 @@
 
 #include <linux/hardirq.h>
 #include <linux/interrupt.h>
-#include <linux/moduleparam.h>
+#include <linux/module.h>
 #include <linux/firmware.h>
 #include <linux/jiffies.h>
 #include <linux/list.h>
@@ -531,10 +531,6 @@ static int if_spi_prog_helper_firmware(struct if_spi_card *card,
 		goto out;
 	err = spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG,
 				IF_SPI_CIC_CMD_DOWNLOAD_OVER);
-		goto out;
-
-	lbs_deb_spi("waiting for helper to boot...\n");
-
 out:
 	if (err)
 		pr_err("failed to load helper firmware (err=%d)\n", err);
diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
index b5acc393a65..db879c364eb 100644
--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -5,7 +5,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/delay.h>
-#include <linux/moduleparam.h>
+#include <linux/module.h>
 #include <linux/firmware.h>
 #include <linux/netdevice.h>
 #include <linux/slab.h>
@@ -324,7 +324,7 @@ static int if_usb_probe(struct usb_interface *intf,
 	}
 	kparam_unblock_sysfs_write(fw_name);
 
-	if (!(priv = lbs_add_card(cardp, &udev->dev)))
+	if (!(priv = lbs_add_card(cardp, &intf->dev)))
 		goto err_prog_firmware;
 
 	cardp->priv = priv;
@@ -956,7 +956,7 @@ static int if_usb_prog_firmware(struct if_usb_card *cardp,
 	priv->dnld_sent = DNLD_RES_RECEIVED;
 	spin_unlock_irqrestore(&priv->driver_lock, flags);
 
-	wake_up_interruptible(&priv->waitq);
+	wake_up(&priv->waitq);
 
 	return ret;
 }
@@ -973,6 +973,23 @@ static const struct {
 	{ MODEL_8682, "libertas/usb8682.bin" }
 };
 
+#ifdef CONFIG_OLPC
+
+static int try_olpc_fw(struct if_usb_card *cardp)
+{
+	int retval = -ENOENT;
+
+	/* try the OLPC firmware first; fall back to fw_table list */
+	if (machine_is_olpc() && cardp->model == MODEL_8388)
+		retval = request_firmware(&cardp->fw,
+				"libertas/usb8388_olpc.bin", &cardp->udev->dev);
+	return retval;
+}
+
+#else
+static int try_olpc_fw(struct if_usb_card *cardp) { return -ENOENT; }
+#endif /* !CONFIG_OLPC */
+
 static int get_fw(struct if_usb_card *cardp, const char *fwname)
 {
 	int i;
@@ -981,6 +998,10 @@ static int get_fw(struct if_usb_card *cardp, const char *fwname)
 	if (fwname)
 		return request_firmware(&cardp->fw, fwname, &cardp->udev->dev);
 
+	/* Handle OLPC firmware */
+	if (try_olpc_fw(cardp) == 0)
+		return 0;
+
 	/* Otherwise search for firmware to use */
 	for (i = 0; i < ARRAY_SIZE(fw_table); i++) {
 		if (fw_table[i].model != cardp->model)
@@ -1112,6 +1133,15 @@ static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
 	if (priv->psstate != PS_STATE_FULL_POWER)
 		return -1;
 
+#ifdef CONFIG_OLPC
+	if (machine_is_olpc()) {
+		if (priv->wol_criteria == EHS_REMOVE_WAKEUP)
+			olpc_ec_wakeup_clear(EC_SCI_SRC_WLAN);
+		else
+			olpc_ec_wakeup_set(EC_SCI_SRC_WLAN);
+	}
+#endif
+
 	ret = lbs_suspend(priv);
 	if (ret)
 		goto out;
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index 94652c5a25d..957681dede1 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -6,7 +6,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#include <linux/moduleparam.h>
+#include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/etherdevice.h>
 #include <linux/hardirq.h>
@@ -23,6 +23,7 @@
 #include "cfg.h"
 #include "debugfs.h"
 #include "cmd.h"
+#include "mesh.h"
 
 #define DRIVER_RELEASE_VERSION "323.p0"
 const char lbs_driver_version[] = "COMM-USB8388-" DRIVER_RELEASE_VERSION
@@ -98,6 +99,69 @@ u8 lbs_data_rate_to_fw_index(u32 rate)
 	return 0;
 }
 
+int lbs_set_iface_type(struct lbs_private *priv, enum nl80211_iftype type)
+{
+	int ret = 0;
+
+	switch (type) {
+	case NL80211_IFTYPE_MONITOR:
+		ret = lbs_set_monitor_mode(priv, 1);
+		break;
+	case NL80211_IFTYPE_STATION:
+		if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
+			ret = lbs_set_monitor_mode(priv, 0);
+		if (!ret)
+			ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 1);
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
+			ret = lbs_set_monitor_mode(priv, 0);
+		if (!ret)
+			ret = lbs_set_snmp_mib(priv, SNMP_MIB_OID_BSS_TYPE, 2);
+		break;
+	default:
+		ret = -ENOTSUPP;
+	}
+	return ret;
+}
+
+int lbs_start_iface(struct lbs_private *priv)
+{
+	struct cmd_ds_802_11_mac_address cmd;
+	int ret;
+
+	if (priv->power_restore) {
+		ret = priv->power_restore(priv);
+		if (ret)
+			return ret;
+	}
+
+	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
+	cmd.action = cpu_to_le16(CMD_ACT_SET);
+	memcpy(cmd.macadd, priv->current_addr, ETH_ALEN);
+
+	ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd);
+	if (ret) {
+		lbs_deb_net("set MAC address failed\n");
+		goto err;
+	}
+
+	ret = lbs_set_iface_type(priv, priv->wdev->iftype);
+	if (ret) {
+		lbs_deb_net("set iface type failed\n");
+		goto err;
+	}
+
+	lbs_update_channel(priv);
+
+	priv->iface_running = true;
+	return 0;
+
+err:
+	if (priv->power_save)
+		priv->power_save(priv);
+	return ret;
+}
 
 /**
  *  lbs_dev_open - open the ethX interface
@@ -111,23 +175,65 @@ static int lbs_dev_open(struct net_device *dev)
 	int ret = 0;
 
 	lbs_deb_enter(LBS_DEB_NET);
+	if (!priv->iface_running) {
+		ret = lbs_start_iface(priv);
+		if (ret)
+			goto out;
+	}
 
 	spin_lock_irq(&priv->driver_lock);
-	priv->stopping = false;
 
-	if (priv->connect_status == LBS_CONNECTED)
-		netif_carrier_on(dev);
-	else
-		netif_carrier_off(dev);
+	netif_carrier_off(dev);
 
 	if (!priv->tx_pending_len)
 		netif_wake_queue(dev);
 
 	spin_unlock_irq(&priv->driver_lock);
+
+out:
 	lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
 	return ret;
 }
 
+static bool lbs_command_queue_empty(struct lbs_private *priv)
+{
+	unsigned long flags;
+	bool ret;
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	ret = priv->cur_cmd == NULL && list_empty(&priv->cmdpendingq);
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+	return ret;
+}
+
+int lbs_stop_iface(struct lbs_private *priv)
+{
+	unsigned long flags;
+	int ret = 0;
+
+	lbs_deb_enter(LBS_DEB_MAIN);
+
+	spin_lock_irqsave(&priv->driver_lock, flags);
+	priv->iface_running = false;
+	kfree_skb(priv->currenttxskb);
+	priv->currenttxskb = NULL;
+	priv->tx_pending_len = 0;
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+
+	cancel_work_sync(&priv->mcast_work);
+	del_timer_sync(&priv->tx_lockup_timer);
+
+	/* Disable command processing, and wait for all commands to complete */
+	lbs_deb_main("waiting for commands to complete\n");
+	wait_event(priv->waitq, lbs_command_queue_empty(priv));
+	lbs_deb_main("all commands completed\n");
+
+	if (priv->power_save)
+		ret = priv->power_save(priv);
+
+	lbs_deb_leave(LBS_DEB_MAIN);
+	return ret;
+}
+
 /**
  *  lbs_eth_stop - close the ethX interface
  *
@@ -140,17 +246,22 @@ static int lbs_eth_stop(struct net_device *dev)
 
 	lbs_deb_enter(LBS_DEB_NET);
 
+	if (priv->connect_status == LBS_CONNECTED)
+		lbs_disconnect(priv, WLAN_REASON_DEAUTH_LEAVING);
+
 	spin_lock_irq(&priv->driver_lock);
-	priv->stopping = true;
 	netif_stop_queue(dev);
 	spin_unlock_irq(&priv->driver_lock);
 
-	schedule_work(&priv->mcast_work);
+	lbs_update_mcast(priv);
 	cancel_delayed_work_sync(&priv->scan_work);
-	if (priv->scan_req) {
-		cfg80211_scan_done(priv->scan_req, false);
-		priv->scan_req = NULL;
-	}
+	if (priv->scan_req)
+		lbs_scan_done(priv);
+
+	netif_carrier_off(priv->dev);
+
+	if (!lbs_iface_active(priv))
+		lbs_stop_iface(priv);
 
 	lbs_deb_leave(LBS_DEB_NET);
 	return 0;
@@ -163,13 +274,14 @@ void lbs_host_to_card_done(struct lbs_private *priv)
 	lbs_deb_enter(LBS_DEB_THREAD);
 
 	spin_lock_irqsave(&priv->driver_lock, flags);
+	del_timer(&priv->tx_lockup_timer);
 
 	priv->dnld_sent = DNLD_RES_RECEIVED;
 
 	/* Wake main thread if commands are pending */
 	if (!priv->cur_cmd || priv->tx_pending_len > 0) {
 		if (!priv->wakeup_dev_required)
-			wake_up_interruptible(&priv->waitq);
+			wake_up(&priv->waitq);
 	}
 
 	spin_unlock_irqrestore(&priv->driver_lock, flags);
@@ -182,29 +294,24 @@ int lbs_set_mac_address(struct net_device *dev, void *addr)
 	int ret = 0;
 	struct lbs_private *priv = dev->ml_priv;
 	struct sockaddr *phwaddr = addr;
-	struct cmd_ds_802_11_mac_address cmd;
 
 	lbs_deb_enter(LBS_DEB_NET);
 
+	/*
+	 * Can only set MAC address when all interfaces are down, to be written
+	 * to the hardware when one of them is brought up.
+	 */
+	if (lbs_iface_active(priv))
+		return -EBUSY;
+
 	/* In case it was called from the mesh device */
 	dev = priv->dev;
 
-	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
-	cmd.action = cpu_to_le16(CMD_ACT_SET);
-	memcpy(cmd.macadd, phwaddr->sa_data, ETH_ALEN);
-
-	ret = lbs_cmd_with_response(priv, CMD_802_11_MAC_ADDRESS, &cmd);
-	if (ret) {
-		lbs_deb_net("set MAC address failed\n");
-		goto done;
-	}
-
 	memcpy(priv->current_addr, phwaddr->sa_data, ETH_ALEN);
 	memcpy(dev->dev_addr, phwaddr->sa_data, ETH_ALEN);
 	if (priv->mesh_dev)
 		memcpy(priv->mesh_dev->dev_addr, phwaddr->sa_data, ETH_ALEN);
 
-done:
 	lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
 	return ret;
 }
@@ -258,18 +365,18 @@ static int lbs_add_mcast_addrs(struct cmd_ds_mac_multicast_adr *cmd,
 	return i;
 }
 
-static void lbs_set_mcast_worker(struct work_struct *work)
+void lbs_update_mcast(struct lbs_private *priv)
 {
-	struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work);
 	struct cmd_ds_mac_multicast_adr mcast_cmd;
-	int dev_flags;
+	int dev_flags = 0;
 	int nr_addrs;
 	int old_mac_control = priv->mac_control;
 
 	lbs_deb_enter(LBS_DEB_NET);
 
-	dev_flags = priv->dev->flags;
-	if (priv->mesh_dev)
+	if (netif_running(priv->dev))
+		dev_flags |= priv->dev->flags;
+	if (priv->mesh_dev && netif_running(priv->mesh_dev))
 		dev_flags |= priv->mesh_dev->flags;
 
 	if (dev_flags & IFF_PROMISC) {
@@ -315,6 +422,12 @@ static void lbs_set_mcast_worker(struct work_struct *work)
 	lbs_deb_leave(LBS_DEB_NET);
 }
 
+static void lbs_set_mcast_worker(struct work_struct *work)
+{
+	struct lbs_private *priv = container_of(work, struct lbs_private, mcast_work);
+	lbs_update_mcast(priv);
+}
+
 void lbs_set_multicast_list(struct net_device *dev)
 {
 	struct lbs_private *priv = dev->ml_priv;
@@ -504,6 +617,9 @@ static int lbs_thread(void *data)
 			if (ret) {
 				lbs_deb_tx("host_to_card failed %d\n", ret);
 				priv->dnld_sent = DNLD_RES_RECEIVED;
+			} else {
+				mod_timer(&priv->tx_lockup_timer,
+					  jiffies + (HZ * 5));
 			}
 			priv->tx_pending_len = 0;
 			if (!priv->currenttxskb) {
@@ -520,6 +636,7 @@ static int lbs_thread(void *data)
 	}
 
 	del_timer(&priv->command_timer);
+	del_timer(&priv->tx_lockup_timer);
 	del_timer(&priv->auto_deepsleep_timer);
 
 	lbs_deb_leave(LBS_DEB_THREAD);
@@ -647,13 +764,39 @@ static void lbs_cmd_timeout_handler(unsigned long data)
 	if (priv->dnld_sent == DNLD_CMD_SENT)
 		priv->dnld_sent = DNLD_RES_RECEIVED;
 
-	wake_up_interruptible(&priv->waitq);
+	wake_up(&priv->waitq);
 out:
 	spin_unlock_irqrestore(&priv->driver_lock, flags);
 	lbs_deb_leave(LBS_DEB_CMD);
 }
 
 /**
+ * lbs_tx_lockup_handler - handles the timeout of the passing of TX frames
+ * to the hardware. This is known to frequently happen with SD8686 when
+ * waking up after a Wake-on-WLAN-triggered resume.
+ *
+ * @data: &struct lbs_private pointer
+ */
+static void lbs_tx_lockup_handler(unsigned long data)
+{
+	struct lbs_private *priv = (struct lbs_private *)data;
+	unsigned long flags;
+
+	lbs_deb_enter(LBS_DEB_TX);
+	spin_lock_irqsave(&priv->driver_lock, flags);
+
+	netdev_info(priv->dev, "TX lockup detected\n");
+	if (priv->reset_card)
+		priv->reset_card(priv);
+
+	priv->dnld_sent = DNLD_RES_RECEIVED;
+	wake_up_interruptible(&priv->waitq);
+
+	spin_unlock_irqrestore(&priv->driver_lock, flags);
+	lbs_deb_leave(LBS_DEB_TX);
+}
+
+/**
  * auto_deepsleep_timer_fn - put the device back to deep sleep mode when
  * timer expires and no activity (command, event, data etc.) is detected.
  * @data:	&struct lbs_private pointer
@@ -739,6 +882,8 @@ static int lbs_init_adapter(struct lbs_private *priv)
 
 	setup_timer(&priv->command_timer, lbs_cmd_timeout_handler,
 		(unsigned long)priv);
+	setup_timer(&priv->tx_lockup_timer, lbs_tx_lockup_handler,
+		(unsigned long)priv);
 	setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn,
 			(unsigned long)priv);
 
@@ -776,6 +921,7 @@ static void lbs_free_adapter(struct lbs_private *priv)
 	lbs_free_cmd_buffer(priv);
 	kfifo_free(&priv->event_fifo);
 	del_timer(&priv->command_timer);
+	del_timer(&priv->tx_lockup_timer);
 	del_timer(&priv->auto_deepsleep_timer);
 
 	lbs_deb_leave(LBS_DEB_MAIN);
@@ -786,7 +932,7 @@ static const struct net_device_ops lbs_netdev_ops = {
 	.ndo_stop		= lbs_eth_stop,
 	.ndo_start_xmit		= lbs_hard_start_xmit,
 	.ndo_set_mac_address	= lbs_set_mac_address,
-	.ndo_set_multicast_list = lbs_set_multicast_list,
+	.ndo_set_rx_mode	= lbs_set_multicast_list,
 	.ndo_change_mtu		= eth_change_mtu,
 	.ndo_validate_addr	= eth_validate_addr,
 };
@@ -889,10 +1035,6 @@ void lbs_remove_card(struct lbs_private *priv)
 	lbs_remove_mesh(priv);
 	lbs_scan_deinit(priv);
 
-	dev = priv->dev;
-
-	cancel_work_sync(&priv->mcast_work);
-
 	/* worker thread destruction blocks on the in-flight command which
 	 * should have been cleared already in lbs_stop_card().
 	 */
@@ -950,17 +1092,18 @@ int lbs_start_card(struct lbs_private *priv)
 	if (ret)
 		goto done;
 
+	if (!lbs_disablemesh)
+		lbs_init_mesh(priv);
+	else
+		pr_info("%s: mesh disabled\n", dev->name);
+
 	if (lbs_cfg_register(priv)) {
 		pr_err("cannot register device\n");
 		goto done;
 	}
 
-	lbs_update_channel(priv);
-
-	if (!lbs_disablemesh)
-		lbs_init_mesh(priv);
-	else
-		pr_info("%s: mesh disabled\n", dev->name);
+	if (lbs_mesh_activated(priv))
+		lbs_start_mesh(priv);
 
 	lbs_debugfs_init_one(priv, dev);
 
@@ -978,8 +1121,6 @@ EXPORT_SYMBOL_GPL(lbs_start_card);
 void lbs_stop_card(struct lbs_private *priv)
 {
 	struct net_device *dev;
-	struct cmd_ctrl_node *cmdnode;
-	unsigned long flags;
 
 	lbs_deb_enter(LBS_DEB_MAIN);
 
@@ -992,30 +1133,6 @@ void lbs_stop_card(struct lbs_private *priv)
 
 	lbs_debugfs_remove_one(priv);
 	lbs_deinit_mesh(priv);
-
-	/* Delete the timeout of the currently processing command */
-	del_timer_sync(&priv->command_timer);
-	del_timer_sync(&priv->auto_deepsleep_timer);
-
-	/* Flush pending command nodes */
-	spin_lock_irqsave(&priv->driver_lock, flags);
-	lbs_deb_main("clearing pending commands\n");
-	list_for_each_entry(cmdnode, &priv->cmdpendingq, list) {
-		cmdnode->result = -ENOENT;
-		cmdnode->cmdwaitqwoken = 1;
-		wake_up(&cmdnode->cmdwait_q);
-	}
-
-	/* Flush the command the card is currently processing */
-	if (priv->cur_cmd) {
-		lbs_deb_main("clearing current command\n");
-		priv->cur_cmd->result = -ENOENT;
-		priv->cur_cmd->cmdwaitqwoken = 1;
-		wake_up(&priv->cur_cmd->cmdwait_q);
-	}
-	lbs_deb_main("done clearing commands\n");
-	spin_unlock_irqrestore(&priv->driver_lock, flags);
-
 	unregister_netdev(dev);
 
 out:
@@ -1036,7 +1153,7 @@ void lbs_queue_event(struct lbs_private *priv, u32 event)
 
 	kfifo_in(&priv->event_fifo, (unsigned char *) &event, sizeof(u32));
 
-	wake_up_interruptible(&priv->waitq);
+	wake_up(&priv->waitq);
 
 	spin_unlock_irqrestore(&priv->driver_lock, flags);
 	lbs_deb_leave(LBS_DEB_THREAD);
@@ -1054,7 +1171,7 @@ void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx)
 	BUG_ON(resp_idx > 1);
 	priv->resp_idx = resp_idx;
 
-	wake_up_interruptible(&priv->waitq);
+	wake_up(&priv->waitq);
 
 	lbs_deb_leave(LBS_DEB_THREAD);
 }
diff --git a/drivers/net/wireless/libertas/mesh.c b/drivers/net/wireless/libertas/mesh.c
index be72c08ea2a..e87c031b298 100644
--- a/drivers/net/wireless/libertas/mesh.c
+++ b/drivers/net/wireless/libertas/mesh.c
@@ -129,6 +129,19 @@ static int lbs_mesh_config(struct lbs_private *priv, uint16_t action,
 	return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
 }
 
+int lbs_mesh_set_channel(struct lbs_private *priv, u8 channel)
+{
+	return lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, channel);
+}
+
+static uint16_t lbs_mesh_get_channel(struct lbs_private *priv)
+{
+	struct wireless_dev *mesh_wdev = priv->mesh_dev->ieee80211_ptr;
+	if (mesh_wdev->channel)
+		return mesh_wdev->channel->hw_value;
+	else
+		return 1;
+}
 
 /***************************************************************************
  * Mesh sysfs support
@@ -812,7 +825,6 @@ static void lbs_persist_config_remove(struct net_device *dev)
  */
 int lbs_init_mesh(struct lbs_private *priv)
 {
-	struct net_device *dev = priv->dev;
 	int ret = 0;
 
 	lbs_deb_enter(LBS_DEB_MESH);
@@ -837,11 +849,9 @@ int lbs_init_mesh(struct lbs_private *priv)
 		   useful */
 
 		priv->mesh_tlv = TLV_TYPE_OLD_MESH_ID;
-		if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
-				    priv->channel)) {
+		if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1)) {
 			priv->mesh_tlv = TLV_TYPE_MESH_ID;
-			if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
-					    priv->channel))
+			if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1))
 				priv->mesh_tlv = 0;
 		}
 	} else
@@ -851,23 +861,16 @@ int lbs_init_mesh(struct lbs_private *priv)
 		 * 0x100+37; Do not invoke command with old TLV.
 		 */
 		priv->mesh_tlv = TLV_TYPE_MESH_ID;
-		if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
-				    priv->channel))
+		if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1))
 			priv->mesh_tlv = 0;
 	}
 
 	/* Stop meshing until interface is brought up */
-	lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, priv->channel);
+	lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, 1);
 
 	if (priv->mesh_tlv) {
 		sprintf(priv->mesh_ssid, "mesh");
 		priv->mesh_ssid_len = 4;
-
-		lbs_add_mesh(priv);
-
-		if (device_create_file(&dev->dev, &dev_attr_lbs_mesh))
-			netdev_err(dev, "cannot register lbs_mesh attribute\n");
-
 		ret = 1;
 	}
 
@@ -875,6 +878,13 @@ int lbs_init_mesh(struct lbs_private *priv)
 	return ret;
 }
 
+void lbs_start_mesh(struct lbs_private *priv)
+{
+	lbs_add_mesh(priv);
+
+	if (device_create_file(&priv->dev->dev, &dev_attr_lbs_mesh))
+		netdev_err(priv->dev, "cannot register lbs_mesh attribute\n");
+}
 
 int lbs_deinit_mesh(struct lbs_private *priv)
 {
@@ -904,7 +914,8 @@ static int lbs_mesh_stop(struct net_device *dev)
 	struct lbs_private *priv = dev->ml_priv;
 
 	lbs_deb_enter(LBS_DEB_MESH);
-	lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, priv->channel);
+	lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP,
+		lbs_mesh_get_channel(priv));
 
 	spin_lock_irq(&priv->driver_lock);
 
@@ -913,7 +924,9 @@ static int lbs_mesh_stop(struct net_device *dev)
 
 	spin_unlock_irq(&priv->driver_lock);
 
-	schedule_work(&priv->mcast_work);
+	lbs_update_mcast(priv);
+	if (!lbs_iface_active(priv))
+		lbs_stop_iface(priv);
 
 	lbs_deb_leave(LBS_DEB_MESH);
 	return 0;
@@ -931,6 +944,11 @@ static int lbs_mesh_dev_open(struct net_device *dev)
 	int ret = 0;
 
 	lbs_deb_enter(LBS_DEB_NET);
+	if (!priv->iface_running) {
+		ret = lbs_start_iface(priv);
+		if (ret)
+			goto out;
+	}
 
 	spin_lock_irq(&priv->driver_lock);
 
@@ -947,7 +965,8 @@ static int lbs_mesh_dev_open(struct net_device *dev)
 
 	spin_unlock_irq(&priv->driver_lock);
 
-	ret = lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, priv->channel);
+	ret = lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
+		lbs_mesh_get_channel(priv));
 
 out:
 	lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
@@ -959,7 +978,7 @@ static const struct net_device_ops mesh_netdev_ops = {
 	.ndo_stop 		= lbs_mesh_stop,
 	.ndo_start_xmit		= lbs_hard_start_xmit,
 	.ndo_set_mac_address	= lbs_set_mac_address,
-	.ndo_set_multicast_list = lbs_set_multicast_list,
+	.ndo_set_rx_mode	= lbs_set_multicast_list,
 };
 
 /**
@@ -971,18 +990,32 @@ static const struct net_device_ops mesh_netdev_ops = {
 static int lbs_add_mesh(struct lbs_private *priv)
 {
 	struct net_device *mesh_dev = NULL;
+	struct wireless_dev *mesh_wdev;
 	int ret = 0;
 
 	lbs_deb_enter(LBS_DEB_MESH);
 
 	/* Allocate a virtual mesh device */
+	mesh_wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
+	if (!mesh_wdev) {
+		lbs_deb_mesh("init mshX wireless device failed\n");
+		ret = -ENOMEM;
+		goto done;
+	}
+
 	mesh_dev = alloc_netdev(0, "msh%d", ether_setup);
 	if (!mesh_dev) {
 		lbs_deb_mesh("init mshX device failed\n");
 		ret = -ENOMEM;
-		goto done;
+		goto err_free_wdev;
 	}
+
+	mesh_wdev->iftype = NL80211_IFTYPE_MESH_POINT;
+	mesh_wdev->wiphy = priv->wdev->wiphy;
+	mesh_wdev->netdev = mesh_dev;
+
 	mesh_dev->ml_priv = priv;
+	mesh_dev->ieee80211_ptr = mesh_wdev;
 	priv->mesh_dev = mesh_dev;
 
 	mesh_dev->netdev_ops = &mesh_netdev_ops;
@@ -996,7 +1029,7 @@ static int lbs_add_mesh(struct lbs_private *priv)
 	ret = register_netdev(mesh_dev);
 	if (ret) {
 		pr_err("cannot register mshX virtual interface\n");
-		goto err_free;
+		goto err_free_netdev;
 	}
 
 	ret = sysfs_create_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
@@ -1012,9 +1045,12 @@ static int lbs_add_mesh(struct lbs_private *priv)
 err_unregister:
 	unregister_netdev(mesh_dev);
 
-err_free:
+err_free_netdev:
 	free_netdev(mesh_dev);
 
+err_free_wdev:
+	kfree(mesh_wdev);
+
 done:
 	lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
 	return ret;
@@ -1035,6 +1071,7 @@ void lbs_remove_mesh(struct lbs_private *priv)
 	lbs_persist_config_remove(mesh_dev);
 	unregister_netdev(mesh_dev);
 	priv->mesh_dev = NULL;
+	kfree(mesh_dev->ieee80211_ptr);
 	free_netdev(mesh_dev);
 	lbs_deb_leave(LBS_DEB_MESH);
 }
diff --git a/drivers/net/wireless/libertas/mesh.h b/drivers/net/wireless/libertas/mesh.h
index 50144913f2a..6603f341c87 100644
--- a/drivers/net/wireless/libertas/mesh.h
+++ b/drivers/net/wireless/libertas/mesh.h
@@ -9,30 +9,25 @@
 #include <net/lib80211.h>
 
 #include "host.h"
+#include "dev.h"
 
 #ifdef CONFIG_LIBERTAS_MESH
 
-/* Mesh statistics */
-struct lbs_mesh_stats {
-	u32	fwd_bcast_cnt;		/* Fwd: Broadcast counter */
-	u32	fwd_unicast_cnt;	/* Fwd: Unicast counter */
-	u32	fwd_drop_ttl;		/* Fwd: TTL zero */
-	u32	fwd_drop_rbt;		/* Fwd: Recently Broadcasted */
-	u32	fwd_drop_noroute; 	/* Fwd: No route to Destination */
-	u32	fwd_drop_nobuf;		/* Fwd: Run out of internal buffers */
-	u32	drop_blind;		/* Rx:  Dropped by blinding table */
-	u32	tx_failed_cnt;		/* Tx:  Failed transmissions */
-};
-
-
 struct net_device;
-struct lbs_private;
 
 int lbs_init_mesh(struct lbs_private *priv);
+void lbs_start_mesh(struct lbs_private *priv);
 int lbs_deinit_mesh(struct lbs_private *priv);
 
 void lbs_remove_mesh(struct lbs_private *priv);
 
+static inline bool lbs_mesh_activated(struct lbs_private *priv)
+{
+	/* Mesh SSID is only programmed after successful init */
+	return priv->mesh_ssid_len != 0;
+}
+
+int lbs_mesh_set_channel(struct lbs_private *priv, u8 channel);
 
 /* Sending / Receiving */
 
@@ -67,11 +62,13 @@ void lbs_mesh_ethtool_get_strings(struct net_device *dev,
 
 #define lbs_init_mesh(priv)
 #define lbs_deinit_mesh(priv)
+#define lbs_start_mesh(priv)
 #define lbs_add_mesh(priv)
 #define lbs_remove_mesh(priv)
 #define lbs_mesh_set_dev(priv, dev, rxpd) (dev)
 #define lbs_mesh_set_txpd(priv, dev, txpd)
-#define lbs_mesh_config(priv, enable, chan)
+#define lbs_mesh_set_channel(priv, channel) (0)
+#define lbs_mesh_activated(priv) (false)
 
 #endif
 
diff --git a/drivers/net/wireless/libertas/rx.c b/drivers/net/wireless/libertas/rx.c
index bfb8898ae51..c7366b07b56 100644
--- a/drivers/net/wireless/libertas/rx.c
+++ b/drivers/net/wireless/libertas/rx.c
@@ -8,6 +8,7 @@
 #include <linux/hardirq.h>
 #include <linux/slab.h>
 #include <linux/types.h>
+#include <linux/export.h>
 #include <net/cfg80211.h>
 
 #include "defs.h"
@@ -15,6 +16,7 @@
 #include "radiotap.h"
 #include "decl.h"
 #include "dev.h"
+#include "mesh.h"
 
 struct eth803hdr {
 	u8 dest_addr[6];
diff --git a/drivers/net/wireless/libertas/tx.c b/drivers/net/wireless/libertas/tx.c
index a6e85134cfe..c025f9c1828 100644
--- a/drivers/net/wireless/libertas/tx.c
+++ b/drivers/net/wireless/libertas/tx.c
@@ -5,6 +5,7 @@
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/sched.h>
+#include <linux/export.h>
 #include <net/cfg80211.h>
 
 #include "host.h"
@@ -12,6 +13,7 @@
 #include "decl.h"
 #include "defs.h"
 #include "dev.h"
+#include "mesh.h"
 
 /**
  * convert_radiotap_rate_to_mv - converts Tx/Rx rates from IEEE80211_RADIOTAP_RATE