C++ (Cpp) rmnet_vnd_tx_fixup示例

示例#1

文件： rmnet_handlers.c 项目： AlexShiLucky/linux

/* Modifies packet as per logical endpoint configuration and egress data format
 * for egress device configured in logical endpoint. Packet is then transmitted
 * on the egress device.
 */
void rmnet_egress_handler(struct sk_buff *skb)
{
	struct net_device *orig_dev;
	struct rmnet_port *port;
	struct rmnet_priv *priv;
	u8 mux_id;

	sk_pacing_shift_update(skb->sk, 8);

	orig_dev = skb->dev;
	priv = netdev_priv(orig_dev);
	skb->dev = priv->real_dev;
	mux_id = priv->mux_id;

	port = rmnet_get_port(skb->dev);
	if (!port)
		goto drop;

	if (rmnet_map_egress_handler(skb, port, mux_id, orig_dev))
		goto drop;

	rmnet_vnd_tx_fixup(skb, orig_dev);

	dev_queue_xmit(skb);
	return;

drop:
	this_cpu_inc(priv->pcpu_stats->stats.tx_drops);
	kfree_skb(skb);
}

示例#2

文件： rmnet_data_handlers.c 项目： BeastOn/yu_msm8916

/**
 * rmnet_egress_handler() - Egress handler entry point
 * @skb:        packet to transmit
 * @ep:         logical endpoint configuration of the packet originator
 *              (e.g.. RmNet virtual network device)
 *
 * Modifies packet as per logical endpoint configuration and egress data format
 * for egress device configured in logical endpoint. Packet is then transmitted
 * on the egress device.
 */
void rmnet_egress_handler(struct sk_buff *skb,
			  struct rmnet_logical_ep_conf_s *ep)
{
	struct rmnet_phys_ep_conf_s *config;
	struct net_device *orig_dev;
	int rc;
	orig_dev = skb->dev;
	skb->dev = ep->egress_dev;

	config = (struct rmnet_phys_ep_conf_s *)
		rcu_dereference(skb->dev->rx_handler_data);

	if (!config) {
		LOGD("%s is not associated with rmnet_data", skb->dev->name);
		kfree_skb(skb);
		return;
	}

	LOGD("Packet going out on %s with egress format 0x%08X",
	     skb->dev->name, config->egress_data_format);

	if (config->egress_data_format & RMNET_EGRESS_FORMAT_MAP) {
		switch (rmnet_map_egress_handler(skb, config, ep, orig_dev)) {
		case RMNET_MAP_CONSUMED:
			LOGD("%s", "MAP process consumed packet");
			return;

		case RMNET_MAP_SUCCESS:
			break;

		default:
			LOGD("MAP egress failed on packet on %s",
			     skb->dev->name);
			rmnet_kfree_skb(skb, RMNET_STATS_SKBFREE_EGR_MAPFAIL);
			return;
		}
	}

	if (ep->rmnet_mode == RMNET_EPMODE_VND)
		rmnet_vnd_tx_fixup(skb, orig_dev);

	rmnet_print_packet(skb, skb->dev->name, 't');
	trace_rmnet_egress_handler(skb);
	rc = dev_queue_xmit(skb);
	if (rc != 0) {
		LOGD("Failed to queue packet for transmission on [%s]",
		      skb->dev->name);
	}
	rmnet_stats_queue_xmit(rc, RMNET_STATS_QUEUE_XMIT_EGRESS);
}

示例#3

文件： rmnet_handlers.c 项目： SantoshShilimkar/linux

/* Modifies packet as per logical endpoint configuration and egress data format
 * for egress device configured in logical endpoint. Packet is then transmitted
 * on the egress device.
 */
void rmnet_egress_handler(struct sk_buff *skb)
{
	struct net_device *orig_dev;
	struct rmnet_port *port;
	struct rmnet_priv *priv;
	u8 mux_id;

	orig_dev = skb->dev;
	priv = netdev_priv(orig_dev);
	skb->dev = priv->real_dev;
	mux_id = priv->mux_id;

	port = rmnet_get_port(skb->dev);
	if (!port) {
		kfree_skb(skb);
		return;
	}

	if (port->egress_data_format & RMNET_EGRESS_FORMAT_MAP) {
		switch (rmnet_map_egress_handler(skb, port, mux_id, orig_dev)) {
		case RMNET_MAP_CONSUMED:
			return;

		case RMNET_MAP_SUCCESS:
			break;

		default:
			kfree_skb(skb);
			return;
		}
	}

	rmnet_vnd_tx_fixup(skb, orig_dev);

	dev_queue_xmit(skb);
}