net/ice: fix memory leak when releasing VSI
[dpdk.git] / examples / l3fwd / l3fwd_lpm.h
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2010-2016 Intel Corporation
3  */
4
5 #ifndef __L3FWD_LPM_H__
6 #define __L3FWD_LPM_H__
7
8 static __rte_always_inline void
9 l3fwd_lpm_simple_forward(struct rte_mbuf *m, uint16_t portid,
10                 struct lcore_conf *qconf)
11 {
12         struct rte_ether_hdr *eth_hdr;
13         struct rte_ipv4_hdr *ipv4_hdr;
14         uint16_t dst_port;
15
16         eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
17
18         if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
19                 /* Handle IPv4 headers.*/
20                 ipv4_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
21                                                 sizeof(struct rte_ether_hdr));
22
23 #ifdef DO_RFC_1812_CHECKS
24                 /* Check to make sure the packet is valid (RFC1812) */
25                 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
26                         rte_pktmbuf_free(m);
27                         return;
28                 }
29 #endif
30                  dst_port = lpm_get_ipv4_dst_port(ipv4_hdr, portid,
31                                                 qconf->ipv4_lookup_struct);
32
33                 if (dst_port >= RTE_MAX_ETHPORTS ||
34                         (enabled_port_mask & 1 << dst_port) == 0)
35                         dst_port = portid;
36
37 #ifdef DO_RFC_1812_CHECKS
38                 /* Update time to live and header checksum */
39                 --(ipv4_hdr->time_to_live);
40                 ++(ipv4_hdr->hdr_checksum);
41 #endif
42                 /* dst addr */
43                 *(uint64_t *)&eth_hdr->d_addr = dest_eth_addr[dst_port];
44
45                 /* src addr */
46                 rte_ether_addr_copy(&ports_eth_addr[dst_port],
47                                 &eth_hdr->s_addr);
48
49                 send_single_packet(qconf, m, dst_port);
50         } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
51                 /* Handle IPv6 headers.*/
52                 struct rte_ipv6_hdr *ipv6_hdr;
53
54                 ipv6_hdr = rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
55                                                 sizeof(struct rte_ether_hdr));
56
57                 dst_port = lpm_get_ipv6_dst_port(ipv6_hdr, portid,
58                                         qconf->ipv6_lookup_struct);
59
60                 if (dst_port >= RTE_MAX_ETHPORTS ||
61                         (enabled_port_mask & 1 << dst_port) == 0)
62                         dst_port = portid;
63
64                 /* dst addr */
65                 *(uint64_t *)&eth_hdr->d_addr = dest_eth_addr[dst_port];
66
67                 /* src addr */
68                 rte_ether_addr_copy(&ports_eth_addr[dst_port],
69                                 &eth_hdr->s_addr);
70
71                 send_single_packet(qconf, m, dst_port);
72         } else {
73                 /* Free the mbuf that contains non-IPV4/IPV6 packet */
74                 rte_pktmbuf_free(m);
75         }
76 }
77
78 static inline void
79 l3fwd_lpm_no_opt_send_packets(int nb_rx, struct rte_mbuf **pkts_burst,
80                                 uint16_t portid, struct lcore_conf *qconf)
81 {
82         int32_t j;
83
84         /* Prefetch first packets */
85         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++)
86                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[j], void *));
87
88         /* Prefetch and forward already prefetched packets. */
89         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
90                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
91                                 j + PREFETCH_OFFSET], void *));
92                 l3fwd_lpm_simple_forward(pkts_burst[j], portid, qconf);
93         }
94
95         /* Forward remaining prefetched packets */
96         for (; j < nb_rx; j++)
97                 l3fwd_lpm_simple_forward(pkts_burst[j], portid, qconf);
98 }
99
100 #endif /* __L3FWD_LPM_H__ */