---

yaml
---
r: 266642
b: refs/heads/master
c: 8f641d9
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8a3a3c85e44d58f5af0adac74a0b866ba89a1978
+refs/heads/master: 8f641d93c38ae93c67263d4e03f793092d471b12

trunk/drivers/net/wireless/libertas/dev.h

@@ -158,6 +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;

trunk/drivers/net/wireless/libertas/main.c

@@ -188,6 +188,7 @@ int lbs_stop_iface(struct lbs_private *priv)
 	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");
@@ -243,6 +244,7 @@ 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;
 
@@ -585,6 +587,9 @@ 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) {
@@ -601,6 +606,7 @@ 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);
@@ -734,6 +740,32 @@ static void lbs_cmd_timeout_handler(unsigned long data)
 	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.
@@ -820,6 +852,8 @@ 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);
 
@@ -857,6 +891,7 @@ 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);