a7c528e5d7
Add 'rte_' prefix to structures: - rename struct ipv4_hdr as struct rte_ipv4_hdr. - rename struct ipv6_hdr as struct rte_ipv6_hdr. Signed-off-by: Olivier Matz <olivier.matz@6wind.com> Reviewed-by: Stephen Hemminger <stephen@networkplumber.org> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com> Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2016 Intel Corporation
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*/
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#ifndef __L3FWD_EM_H__
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#define __L3FWD_EM_H__
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static __rte_always_inline void
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l3fwd_em_simple_forward(struct rte_mbuf *m, uint16_t portid,
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struct lcore_conf *qconf)
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{
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struct rte_ether_hdr *eth_hdr;
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struct rte_ipv4_hdr *ipv4_hdr;
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uint16_t dst_port;
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uint32_t tcp_or_udp;
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uint32_t l3_ptypes;
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eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
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tcp_or_udp = m->packet_type & (RTE_PTYPE_L4_TCP | RTE_PTYPE_L4_UDP);
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l3_ptypes = m->packet_type & RTE_PTYPE_L3_MASK;
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if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV4)) {
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/* Handle IPv4 headers.*/
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ipv4_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
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sizeof(struct rte_ether_hdr));
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#ifdef DO_RFC_1812_CHECKS
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/* Check to make sure the packet is valid (RFC1812) */
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if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
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rte_pktmbuf_free(m);
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return;
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}
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#endif
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dst_port = em_get_ipv4_dst_port(ipv4_hdr, portid,
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qconf->ipv4_lookup_struct);
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if (dst_port >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port) == 0)
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dst_port = portid;
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#ifdef DO_RFC_1812_CHECKS
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/* Update time to live and header checksum */
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--(ipv4_hdr->time_to_live);
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++(ipv4_hdr->hdr_checksum);
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#endif
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/* dst addr */
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*(uint64_t *)ð_hdr->d_addr = dest_eth_addr[dst_port];
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/* src addr */
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rte_ether_addr_copy(&ports_eth_addr[dst_port],
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ð_hdr->s_addr);
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send_single_packet(qconf, m, dst_port);
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} else if (tcp_or_udp && (l3_ptypes == RTE_PTYPE_L3_IPV6)) {
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/* Handle IPv6 headers.*/
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struct rte_ipv6_hdr *ipv6_hdr;
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ipv6_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
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sizeof(struct rte_ether_hdr));
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dst_port = em_get_ipv6_dst_port(ipv6_hdr, portid,
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qconf->ipv6_lookup_struct);
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if (dst_port >= RTE_MAX_ETHPORTS ||
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(enabled_port_mask & 1 << dst_port) == 0)
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dst_port = portid;
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/* dst addr */
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*(uint64_t *)ð_hdr->d_addr = dest_eth_addr[dst_port];
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/* src addr */
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rte_ether_addr_copy(&ports_eth_addr[dst_port],
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ð_hdr->s_addr);
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send_single_packet(qconf, m, dst_port);
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} else {
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/* Free the mbuf that contains non-IPV4/IPV6 packet */
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rte_pktmbuf_free(m);
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}
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}
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/*
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* Buffer non-optimized handling of packets, invoked
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* from main_loop.
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*/
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static inline void
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l3fwd_em_no_opt_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
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uint16_t portid, struct lcore_conf *qconf)
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{
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int32_t j;
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/* Prefetch first packets */
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for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++)
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rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[j], void *));
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/*
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* Prefetch and forward already prefetched
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* packets.
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*/
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for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
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rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
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j + PREFETCH_OFFSET], void *));
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l3fwd_em_simple_forward(pkts_burst[j], portid, qconf);
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}
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/* Forward remaining prefetched packets */
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for (; j < nb_rx; j++)
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l3fwd_em_simple_forward(pkts_burst[j], portid, qconf);
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}
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#endif /* __L3FWD_EM_H__ */
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