r6040: recover from transmit timeout
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c
index 24f42d2..7ca6a93 100644
--- a/drivers/net/r6040.c
+++ b/drivers/net/r6040.c
@@ -61,7 +61,6 @@
/* Time in jiffies before concluding the transmitter is hung. */
#define TX_TIMEOUT (6000 * HZ / 1000)
-#define TIMER_WUT (jiffies + HZ * 1)/* timer wakeup time : 1 second */
/* RDC MAC I/O Size */
#define R6040_IO_SIZE 256
@@ -266,19 +265,6 @@
}
}
-static void r6040_tx_timeout(struct net_device *dev)
-{
- struct r6040_private *priv = netdev_priv(dev);
-
- disable_irq(dev->irq);
- napi_disable(&priv->napi);
- spin_lock(&priv->lock);
- dev->stats.tx_errors++;
- spin_unlock(&priv->lock);
-
- netif_stop_queue(dev);
-}
-
static void r6040_init_ring_desc(struct r6040_descriptor *desc_ring,
dma_addr_t desc_dma, int size)
{
@@ -350,6 +336,34 @@
iowrite16(lp->rx_ring_dma >> 16, ioaddr + MRD_SA1);
}
+static void r6040_tx_timeout(struct net_device *dev)
+{
+ struct r6040_private *priv = netdev_priv(dev);
+ void __iomem *ioaddr = priv->base;
+
+ printk(KERN_WARNING "%s: transmit timed out, status %4.4x, PHY status "
+ "%4.4x\n",
+ dev->name, ioread16(ioaddr + MIER),
+ mdio_read(dev, priv->mii_if.phy_id, MII_BMSR));
+
+ disable_irq(dev->irq);
+ napi_disable(&priv->napi);
+ spin_lock(&priv->lock);
+ /* Clear all descriptors */
+ r6040_free_txbufs(dev);
+ r6040_free_rxbufs(dev);
+ r6040_alloc_txbufs(dev);
+ r6040_alloc_rxbufs(dev);
+
+ /* Reset MAC */
+ iowrite16(MAC_RST, ioaddr + MCR1);
+ spin_unlock(&priv->lock);
+ enable_irq(dev->irq);
+
+ dev->stats.tx_errors++;
+ netif_wake_queue(dev);
+}
+
static struct net_device_stats *r6040_get_stats(struct net_device *dev)
{
struct r6040_private *priv = netdev_priv(dev);
@@ -719,8 +733,7 @@
}
/* Timer active again */
- lp->timer.expires = TIMER_WUT;
- add_timer(&lp->timer);
+ mod_timer(&lp->timer, jiffies + round_jiffies(HZ));
}
/* Read/set MAC address routines */
@@ -776,14 +789,10 @@
napi_enable(&lp->napi);
netif_start_queue(dev);
- if (lp->switch_sig != ICPLUS_PHY_ID) {
- /* set and active a timer process */
- init_timer(&lp->timer);
- lp->timer.expires = TIMER_WUT;
- lp->timer.data = (unsigned long)dev;
- lp->timer.function = &r6040_timer;
- add_timer(&lp->timer);
- }
+ /* set and active a timer process */
+ setup_timer(&lp->timer, r6040_timer, (unsigned long) dev);
+ if (lp->switch_sig != ICPLUS_PHY_ID)
+ mod_timer(&lp->timer, jiffies + HZ);
return 0;
}