C++ (Cpp) can_flush_echo_skb Examples

Example #1

File: dev.c Project: 0xroot/Blackphone-BP1-Kernel

/*
 * Common close function for cleanup before the device gets closed.
 *
 * This function should be called in the close function of the device
 * driver.
 */
void close_candev(struct net_device *dev)
{
	struct can_priv *priv = netdev_priv(dev);

	del_timer_sync(&priv->restart_timer);
	can_flush_echo_skb(dev);
}

Example #2

File: dev.c Project: AppEngine/linux-2.6

/*
 * CAN device restart for bus-off recovery
 */
void can_restart(unsigned long data)
{
	struct net_device *dev = (struct net_device *)data;
	struct can_priv *priv = netdev_priv(dev);
	struct net_device_stats *stats = &dev->stats;
	struct sk_buff *skb;
	struct can_frame *cf;
	int err;

	BUG_ON(netif_carrier_ok(dev));

	/*
	 * No synchronization needed because the device is bus-off and
	 * no messages can come in or go out.
	 */
	can_flush_echo_skb(dev);

	/* send restart message upstream */
	skb = dev_alloc_skb(sizeof(struct can_frame));
	if (skb == NULL) {
		err = -ENOMEM;
		goto restart;
	}
	skb->dev = dev;
	skb->protocol = htons(ETH_P_CAN);
	cf = (struct can_frame *)skb_put(skb, sizeof(struct can_frame));
	memset(cf, 0, sizeof(struct can_frame));
	cf->can_id = CAN_ERR_FLAG | CAN_ERR_RESTARTED;
	cf->can_dlc = CAN_ERR_DLC;

	netif_rx(skb);

	dev->last_rx = jiffies;
	stats->rx_packets++;
	stats->rx_bytes += cf->can_dlc;

restart:
	dev_dbg(dev->dev.parent, "restarted\n");
	priv->can_stats.restarts++;

	/* Now restart the device */
	err = priv->do_set_mode(dev, CAN_MODE_START);

	netif_carrier_on(dev);
	if (err)
		dev_err(dev->dev.parent, "Error %d during restart", err);
}

Example #3

File: dev.c Project: 125radheyshyam/linux

/*
 * CAN device restart for bus-off recovery
 */
void can_restart(unsigned long data)
{
	struct net_device *dev = (struct net_device *)data;
	struct can_priv *priv = netdev_priv(dev);
	struct net_device_stats *stats = &dev->stats;
	struct sk_buff *skb;
	struct can_frame *cf;
	int err;

	BUG_ON(netif_carrier_ok(dev));

	/*
	 * No synchronization needed because the device is bus-off and
	 * no messages can come in or go out.
	 */
	can_flush_echo_skb(dev);

	/* send restart message upstream */
	skb = alloc_can_err_skb(dev, &cf);
	if (skb == NULL) {
		err = -ENOMEM;
		goto restart;
	}
	cf->can_id |= CAN_ERR_RESTARTED;

	netif_rx(skb);

	stats->rx_packets++;
	stats->rx_bytes += cf->can_dlc;

restart:
	dev_dbg(dev->dev.parent, "restarted\n");
	priv->can_stats.restarts++;

	/* Now restart the device */
	err = priv->do_set_mode(dev, CAN_MODE_START);

	netif_carrier_on(dev);
	if (err)
		dev_err(dev->dev.parent, "Error %d during restart", err);
}

Example #4

File: dev.c Project: DirtyDroidX/android_kernel_htc_m8ul

void can_restart(unsigned long data)
{
	struct net_device *dev = (struct net_device *)data;
	struct can_priv *priv = netdev_priv(dev);
	struct net_device_stats *stats = &dev->stats;
	struct sk_buff *skb;
	struct can_frame *cf;
	int err;

	BUG_ON(netif_carrier_ok(dev));

	can_flush_echo_skb(dev);

	
	skb = alloc_can_err_skb(dev, &cf);
	if (skb == NULL) {
		err = -ENOMEM;
		goto restart;
	}
	cf->can_id |= CAN_ERR_RESTARTED;

	netif_rx(skb);

	stats->rx_packets++;
	stats->rx_bytes += cf->can_dlc;

restart:
	netdev_dbg(dev, "restarted\n");
	priv->can_stats.restarts++;

	
	err = priv->do_set_mode(dev, CAN_MODE_START);

	netif_carrier_on(dev);
	if (err)
		netdev_err(dev, "Error %d during restart", err);
}