C++ (Cpp) odp_packet_has_eth Examples

Example #1

File: odp_switch.c Project: nmorey/odp

/**
 * Forward packets to correct output buffers
 *
 * Packets, whose destination MAC address is already known from previously
 * received packets, are forwarded to the matching switch ports. Packets
 * destined to unknown addresses are broadcasted to all switch ports (except
 * the ingress port).
 *
 * @param pkt_tbl    Array of packets
 * @param num        Number of packets in the array
 * @param thr_arg    Thread arguments
 * @param port_in    Input port index
 */
static inline void forward_packets(odp_packet_t pkt_tbl[], unsigned num,
				   thread_args_t *thr_arg, uint8_t port_in)
{
	odp_packet_t pkt;
	odph_ethhdr_t *eth;
	unsigned i;
	unsigned buf_id;
	int ret;
	uint8_t port_out = 0;

	for (i = 0; i < num; i++) {
		pkt = pkt_tbl[i];

		if (!odp_packet_has_eth(pkt)) {
			odp_packet_free(pkt);
			continue;
		}

		eth = (odph_ethhdr_t *)odp_packet_l2_ptr(pkt, NULL);

		/* Lookup source MAC address */
		ret = mac_table_get(&eth->src, &port_out);

		/* Update for address table if necessary */
		if (ret < 0 || port_out != port_in)
			mac_table_put(&eth->src, port_in);

		/* Lookup destination MAC address */
		ret = mac_table_get(&eth->dst, &port_out);
		if (ret < 0) {
			/* If address was not found, broadcast packet */
			broadcast_packet(pkt, thr_arg, port_in);
			continue;
		}
		buf_id = thr_arg->tx_pktio[port_out].buf.len;

		thr_arg->tx_pktio[port_out].buf.pkt[buf_id] = pkt;
		thr_arg->tx_pktio[port_out].buf.len++;
	}
}

Example #2

File: odp_l2fwd.c Project: mitra/odp-mppa

/**
 * Fill packets' eth addresses according to the destination port
 *
 * @param pkt_tbl  Array of packets
 * @param num      Number of packets in the array
 * @param dst_port Destination port
 */
static void fill_eth_addrs(odp_packet_t pkt_tbl[], unsigned num, int dst_port)
{
	odp_packet_t pkt;
	odph_ethhdr_t *eth;
	unsigned i;

	if (!gbl_args->appl.dst_change && !gbl_args->appl.src_change)
		return;

	for (i = 0; i < num; ++i) {
		pkt = pkt_tbl[i];
		if (odp_packet_has_eth(pkt)) {
			eth = (odph_ethhdr_t *)odp_packet_l2_ptr(pkt, NULL);

			if (gbl_args->appl.src_change)
				eth->src = gbl_args->port_eth_addr[dst_port];

			if (gbl_args->appl.dst_change)
				eth->dst = gbl_args->dst_eth_addr[dst_port];
		}
	}
}