C++ (Cpp) RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS Examples

Example #1

File: rte_table_stub.c Project: DrenfongWong/dpdk

static int
rte_table_stub_lookup(
	__rte_unused void *table,
	__rte_unused struct rte_mbuf **pkts,
	__rte_unused uint64_t pkts_mask,
	uint64_t *lookup_hit_mask,
	__rte_unused void **entries)
{
	__rte_unused struct rte_table_stub *stub = (struct rte_table_stub *) table;
	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);

	RTE_TABLE_LPM_STATS_PKTS_IN_ADD(stub, n_pkts_in);
	*lookup_hit_mask = 0;
	RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(stub, n_pkts_in);

	return 0;
}

Example #2

File: rte_table_lpm.c Project: P4-vSwitch/dpdk

static int
rte_table_lpm_lookup(
	void *table,
	struct rte_mbuf **pkts,
	uint64_t pkts_mask,
	uint64_t *lookup_hit_mask,
	void **entries)
{
	struct rte_table_lpm *lpm = (struct rte_table_lpm *) table;
	uint64_t pkts_out_mask = 0;
	uint32_t i;

	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
	RTE_TABLE_LPM_STATS_PKTS_IN_ADD(lpm, n_pkts_in);

	pkts_out_mask = 0;
	for (i = 0; i < (uint32_t)(RTE_PORT_IN_BURST_SIZE_MAX -
		__builtin_clzll(pkts_mask)); i++) {
		uint64_t pkt_mask = 1LLU << i;

		if (pkt_mask & pkts_mask) {
			struct rte_mbuf *pkt = pkts[i];
			uint32_t ip = rte_bswap32(
				RTE_MBUF_METADATA_UINT32(pkt, lpm->offset));
			int status;
			uint8_t nht_pos;

			status = rte_lpm_lookup(lpm->lpm, ip, &nht_pos);
			if (status == 0) {
				pkts_out_mask |= pkt_mask;
				entries[i] = (void *) &lpm->nht[nht_pos *
					lpm->entry_size];
			}
		}
	}

	*lookup_hit_mask = pkts_out_mask;
	RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(lpm, n_pkts_in - __builtin_popcountll(pkts_out_mask));
	return 0;
}