#ifndef __L3FWD_EM_H__
#define __L3FWD_EM_H__
-static __rte_always_inline void
-l3fwd_em_simple_forward(struct rte_mbuf *m, uint16_t portid,
- struct lcore_conf *qconf)
+static __rte_always_inline uint16_t
+l3fwd_em_handle_ipv4(struct rte_mbuf *m, uint16_t portid,
+ struct rte_ether_hdr *eth_hdr, struct lcore_conf *qconf)
{
- struct rte_ether_hdr *eth_hdr;
struct rte_ipv4_hdr *ipv4_hdr;
uint16_t dst_port;
- uint32_t tcp_or_udp;
- uint32_t l3_ptypes;
-
- eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
- tcp_or_udp = m->packet_type & (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
- l3_ptypes = m->packet_type & RTE_PTYPE_L3_MASK;
- if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV4)) {
- /* Handle IPv4 headers.*/
- ipv4_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
- sizeof(struct rte_ether_hdr));
+ /* Handle IPv4 headers.*/
+ ipv4_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
+ sizeof(struct rte_ether_hdr));
#ifdef DO_RFC_1812_CHECKS
- /* Check to make sure the packet is valid (RFC1812) */
- if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
- rte_pktmbuf_free(m);
- return;
- }
+ /* Check to make sure the packet is valid (RFC1812) */
+ if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
+ rte_pktmbuf_free(m);
+ return BAD_PORT;
+ }
#endif
- dst_port = em_get_ipv4_dst_port(ipv4_hdr, portid,
- qconf->ipv4_lookup_struct);
+ dst_port = em_get_ipv4_dst_port(ipv4_hdr, portid,
+ qconf->ipv4_lookup_struct);
- if (dst_port >= RTE_MAX_ETHPORTS ||
+ if (dst_port >= RTE_MAX_ETHPORTS ||
(enabled_port_mask & 1 << dst_port) == 0)
- dst_port = portid;
+ dst_port = portid;
#ifdef DO_RFC_1812_CHECKS
- /* Update time to live and header checksum */
- --(ipv4_hdr->time_to_live);
- ++(ipv4_hdr->hdr_checksum);
+ /* Update time to live and header checksum */
+ --(ipv4_hdr->time_to_live);
+ ++(ipv4_hdr->hdr_checksum);
#endif
- /* dst addr */
- *(uint64_t *)ð_hdr->d_addr = dest_eth_addr[dst_port];
+ /* dst addr */
+ *(uint64_t *)ð_hdr->d_addr = dest_eth_addr[dst_port];
- /* src addr */
- rte_ether_addr_copy(&ports_eth_addr[dst_port],
- ð_hdr->s_addr);
+ /* src addr */
+ rte_ether_addr_copy(&ports_eth_addr[dst_port],
+ ð_hdr->s_addr);
- send_single_packet(qconf, m, dst_port);
- } else if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV6)) {
- /* Handle IPv6 headers.*/
- struct rte_ipv6_hdr *ipv6_hdr;
+ return dst_port;
+}
- ipv6_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
- sizeof(struct rte_ether_hdr));
+static __rte_always_inline uint16_t
+l3fwd_em_handle_ipv6(struct rte_mbuf *m, uint16_t portid,
+ struct rte_ether_hdr *eth_hdr, struct lcore_conf *qconf)
+{
+ /* Handle IPv6 headers.*/
+ struct rte_ipv6_hdr *ipv6_hdr;
+ uint16_t dst_port;
- dst_port = em_get_ipv6_dst_port(ipv6_hdr, portid,
- qconf->ipv6_lookup_struct);
+ ipv6_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
+ sizeof(struct rte_ether_hdr));
- if (dst_port >= RTE_MAX_ETHPORTS ||
+ dst_port = em_get_ipv6_dst_port(ipv6_hdr, portid,
+ qconf->ipv6_lookup_struct);
+
+ if (dst_port >= RTE_MAX_ETHPORTS ||
(enabled_port_mask & 1 << dst_port) == 0)
- dst_port = portid;
+ dst_port = portid;
+
+ /* dst addr */
+ *(uint64_t *)ð_hdr->d_addr = dest_eth_addr[dst_port];
- /* dst addr */
- *(uint64_t *)ð_hdr->d_addr = dest_eth_addr[dst_port];
+ /* src addr */
+ rte_ether_addr_copy(&ports_eth_addr[dst_port],
+ ð_hdr->s_addr);
- /* src addr */
- rte_ether_addr_copy(&ports_eth_addr[dst_port],
- ð_hdr->s_addr);
+ return dst_port;
+}
+static __rte_always_inline void
+l3fwd_em_simple_forward(struct rte_mbuf *m, uint16_t portid,
+ struct lcore_conf *qconf)
+{
+ struct rte_ether_hdr *eth_hdr;
+ uint16_t dst_port;
+ uint32_t tcp_or_udp;
+ uint32_t l3_ptypes;
+
+ eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
+ tcp_or_udp = m->packet_type & (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
+ l3_ptypes = m->packet_type & RTE_PTYPE_L3_MASK;
+
+ if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV4)) {
+ dst_port = l3fwd_em_handle_ipv4(m, portid, eth_hdr, qconf);
+ send_single_packet(qconf, m, dst_port);
+ } else if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV6)) {
+ dst_port = l3fwd_em_handle_ipv6(m, portid, eth_hdr, qconf);
send_single_packet(qconf, m, dst_port);
} else {
/* Free the mbuf that contains non-IPV4/IPV6 packet */
}
}
+static __rte_always_inline void
+l3fwd_em_simple_process(struct rte_mbuf *m, struct lcore_conf *qconf)
+{
+ struct rte_ether_hdr *eth_hdr;
+ uint32_t tcp_or_udp;
+ uint32_t l3_ptypes;
+
+ eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
+ tcp_or_udp = m->packet_type & (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
+ l3_ptypes = m->packet_type & RTE_PTYPE_L3_MASK;
+
+ if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV4))
+ m->port = l3fwd_em_handle_ipv4(m, m->port, eth_hdr, qconf);
+ else if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV6))
+ m->port = l3fwd_em_handle_ipv6(m, m->port, eth_hdr, qconf);
+ else
+ m->port = BAD_PORT;
+}
+
/*
* Buffer non-optimized handling of packets, invoked
* from main_loop.
l3fwd_em_simple_forward(pkts_burst[j], portid, qconf);
}
+/*
+ * Buffer non-optimized handling of events, invoked
+ * from main_loop.
+ */
+static inline void
+l3fwd_em_no_opt_process_events(int nb_rx, struct rte_event **events,
+ struct lcore_conf *qconf)
+{
+ int32_t j;
+
+ /* Prefetch first packets */
+ for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++)
+ rte_prefetch0(rte_pktmbuf_mtod(events[j]->mbuf, void *));
+
+ /*
+ * Prefetch and forward already prefetched
+ * packets.
+ */
+ for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
+ rte_prefetch0(rte_pktmbuf_mtod(events[
+ j + PREFETCH_OFFSET]->mbuf, void *));
+ l3fwd_em_simple_process(events[j]->mbuf, qconf);
+ }
+
+ /* Forward remaining prefetched packets */
+ for (; j < nb_rx; j++)
+ l3fwd_em_simple_process(events[j]->mbuf, qconf);
+}
+
#endif /* __L3FWD_EM_H__ */
git.droids-corp.org / dpdk.git / blobdiff