3998e2a072
Replace the BSD license header with the SPDX tag for files with only an Intel copyright on them. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright(c) 2010-2016 Intel Corporation
|
|
*/
|
|
|
|
#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)
|
|
{
|
|
struct ether_hdr *eth_hdr;
|
|
struct ipv4_hdr *ipv4_hdr;
|
|
uint16_t dst_port;
|
|
uint32_t tcp_or_udp;
|
|
uint32_t l3_ptypes;
|
|
|
|
eth_hdr = rte_pktmbuf_mtod(m, struct 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 ipv4_hdr *,
|
|
sizeof(struct 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;
|
|
}
|
|
#endif
|
|
dst_port = em_get_ipv4_dst_port(ipv4_hdr, portid,
|
|
qconf->ipv4_lookup_struct);
|
|
|
|
if (dst_port >= RTE_MAX_ETHPORTS ||
|
|
(enabled_port_mask & 1 << dst_port) == 0)
|
|
dst_port = portid;
|
|
|
|
#ifdef DO_RFC_1812_CHECKS
|
|
/* 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];
|
|
|
|
/* src addr */
|
|
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 ipv6_hdr *ipv6_hdr;
|
|
|
|
ipv6_hdr = rte_pktmbuf_mtod_offset(m, struct ipv6_hdr *,
|
|
sizeof(struct ether_hdr));
|
|
|
|
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 addr */
|
|
*(uint64_t *)ð_hdr->d_addr = dest_eth_addr[dst_port];
|
|
|
|
/* src addr */
|
|
ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr);
|
|
|
|
send_single_packet(qconf, m, dst_port);
|
|
} else {
|
|
/* Free the mbuf that contains non-IPV4/IPV6 packet */
|
|
rte_pktmbuf_free(m);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Buffer non-optimized handling of packets, invoked
|
|
* from main_loop.
|
|
*/
|
|
static inline void
|
|
l3fwd_em_no_opt_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
|
|
uint16_t portid, 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(pkts_burst[j], void *));
|
|
|
|
/*
|
|
* Prefetch and forward already prefetched
|
|
* packets.
|
|
*/
|
|
for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
|
|
rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
|
|
j + PREFETCH_OFFSET], void *));
|
|
l3fwd_em_simple_forward(pkts_burst[j], portid, qconf);
|
|
}
|
|
|
|
/* Forward remaining prefetched packets */
|
|
for (; j < nb_rx; j++)
|
|
l3fwd_em_simple_forward(pkts_burst[j], portid, qconf);
|
|
}
|
|
|
|
#endif /* __L3FWD_EM_H__ */
|