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34 #ifndef __L3FWD_EM_SEQUENTIAL_H__
35 #define __L3FWD_EM_SEQUENTIAL_H__
39 * This is an optional implementation of packet classification in Exact-Match
40 * path using sequential packet classification method.
41 * While hash lookup multi seems to provide better performance, it's disabled
42 * by default and can be enabled with NO_HASH_LOOKUP_MULTI global define in
46 #if defined RTE_ARCH_X86
47 #include "l3fwd_sse.h"
48 #elif defined RTE_MACHINE_CPUFLAG_NEON
49 #include "l3fwd_neon.h"
52 static __rte_always_inline uint16_t
53 em_get_dst_port(const struct lcore_conf *qconf, struct rte_mbuf *pkt,
57 struct ipv4_hdr *ipv4_hdr;
58 struct ipv6_hdr *ipv6_hdr;
62 tcp_or_udp = pkt->packet_type & (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
63 l3_ptypes = pkt->packet_type & RTE_PTYPE_L3_MASK;
65 if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV4)) {
67 /* Handle IPv4 headers.*/
68 ipv4_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv4_hdr *,
69 sizeof(struct ether_hdr));
71 next_hop = em_get_ipv4_dst_port(ipv4_hdr, portid,
72 qconf->ipv4_lookup_struct);
74 if (next_hop >= RTE_MAX_ETHPORTS ||
75 (enabled_port_mask & 1 << next_hop) == 0)
80 } else if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV6)) {
82 /* Handle IPv6 headers.*/
83 ipv6_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv6_hdr *,
84 sizeof(struct ether_hdr));
86 next_hop = em_get_ipv6_dst_port(ipv6_hdr, portid,
87 qconf->ipv6_lookup_struct);
89 if (next_hop >= RTE_MAX_ETHPORTS ||
90 (enabled_port_mask & 1 << next_hop) == 0)
101 * Buffer optimized handling of packets, invoked
105 l3fwd_em_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
106 uint16_t portid, struct lcore_conf *qconf)
109 uint16_t dst_port[MAX_PKT_BURST];
112 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[0],
113 struct ether_hdr *) + 1);
116 for (i = 1, j = 0; j < nb_rx; i++, j++) {
118 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[i],
119 struct ether_hdr *) + 1);
121 dst_port[j] = em_get_dst_port(qconf, pkts_burst[j], portid);
124 send_packets_multi(qconf, pkts_burst, dst_port, nb_rx);
126 #endif /* __L3FWD_EM_SEQUENTIAL_H__ */