DPDK 22.11.0-rc2
rte_ip_frag.h
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1/* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
3 */
4
5#ifndef _RTE_IP_FRAG_H_
6#define _RTE_IP_FRAG_H_
7
15#ifdef __cplusplus
16extern "C" {
17#endif
18
19#include <stdint.h>
20#include <stdio.h>
21
22#include <rte_config.h>
23#include <rte_malloc.h>
24#include <rte_memory.h>
25#include <rte_ip.h>
26#include <rte_byteorder.h>
27
28struct rte_mbuf;
29
31#define RTE_IP_FRAG_DEATH_ROW_LEN 32
32
34#define RTE_IP_FRAG_DEATH_ROW_MBUF_LEN \
35 (RTE_IP_FRAG_DEATH_ROW_LEN * (RTE_LIBRTE_IP_FRAG_MAX_FRAG + 1))
36
39 uint32_t cnt;
42};
43
63struct rte_ip_frag_tbl * rte_ip_frag_table_create(uint32_t bucket_num,
64 uint32_t bucket_entries, uint32_t max_entries,
65 uint64_t max_cycles, int socket_id);
66
73void
74rte_ip_frag_table_destroy(struct rte_ip_frag_tbl *tbl);
75
97int32_t
99 struct rte_mbuf **pkts_out,
100 uint16_t nb_pkts_out,
101 uint16_t mtu_size,
102 struct rte_mempool *pool_direct,
103 struct rte_mempool *pool_indirect);
104
126struct rte_mbuf *rte_ipv6_frag_reassemble_packet(struct rte_ip_frag_tbl *tbl,
127 struct rte_ip_frag_death_row *dr,
128 struct rte_mbuf *mb, uint64_t tms, struct rte_ipv6_hdr *ip_hdr,
129 struct rte_ipv6_fragment_ext *frag_hdr);
130
142static inline struct rte_ipv6_fragment_ext *
144{
145 if (hdr->proto == IPPROTO_FRAGMENT) {
146 return (struct rte_ipv6_fragment_ext *) ++hdr;
147 }
148 else
149 return NULL;
150}
151
175int32_t rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
176 struct rte_mbuf **pkts_out,
177 uint16_t nb_pkts_out, uint16_t mtu_size,
178 struct rte_mempool *pool_direct,
179 struct rte_mempool *pool_indirect);
180
207__rte_experimental
208int32_t
210 struct rte_mbuf **pkts_out,
211 uint16_t nb_pkts_out,
212 uint16_t mtu_size,
213 struct rte_mempool *pool_direct);
214
234struct rte_mbuf * rte_ipv4_frag_reassemble_packet(struct rte_ip_frag_tbl *tbl,
235 struct rte_ip_frag_death_row *dr,
236 struct rte_mbuf *mb, uint64_t tms, struct rte_ipv4_hdr *ip_hdr);
237
246static inline int
248{
249 uint16_t flag_offset, ip_flag, ip_ofs;
250
251 flag_offset = rte_be_to_cpu_16(hdr->fragment_offset);
252 ip_ofs = (uint16_t)(flag_offset & RTE_IPV4_HDR_OFFSET_MASK);
253 ip_flag = (uint16_t)(flag_offset & RTE_IPV4_HDR_MF_FLAG);
254
255 return ip_flag != 0 || ip_ofs != 0;
256}
257
267 uint32_t prefetch);
268
269
278void
279rte_ip_frag_table_statistics_dump(FILE * f, const struct rte_ip_frag_tbl *tbl);
280
291__rte_experimental
292void
293rte_ip_frag_table_del_expired_entries(struct rte_ip_frag_tbl *tbl,
294 struct rte_ip_frag_death_row *dr, uint64_t tms);
295
300#define IP_FRAG_DEATH_ROW_LEN RTE_IP_FRAG_DEATH_ROW_LEN
302#define IP_FRAG_DEATH_ROW_MBUF_LEN RTE_IP_FRAG_DEATH_ROW_MBUF_LEN
304#define ipv6_extension_fragment rte_ipv6_fragment_ext
307#ifdef __cplusplus
308}
309#endif
310
311#endif /* _RTE_IP_FRAG_H_ */
static uint16_t rte_be_to_cpu_16(rte_be16_t x)
int32_t rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in, struct rte_mbuf **pkts_out, uint16_t nb_pkts_out, uint16_t mtu_size, struct rte_mempool *pool_direct, struct rte_mempool *pool_indirect)
static int rte_ipv4_frag_pkt_is_fragmented(const struct rte_ipv4_hdr *hdr)
Definition: rte_ip_frag.h:247
static struct rte_ipv6_fragment_ext * rte_ipv6_frag_get_ipv6_fragment_header(struct rte_ipv6_hdr *hdr)
Definition: rte_ip_frag.h:143
__rte_experimental void rte_ip_frag_table_del_expired_entries(struct rte_ip_frag_tbl *tbl, struct rte_ip_frag_death_row *dr, uint64_t tms)
void rte_ip_frag_table_statistics_dump(FILE *f, const struct rte_ip_frag_tbl *tbl)
struct rte_mbuf * rte_ipv4_frag_reassemble_packet(struct rte_ip_frag_tbl *tbl, struct rte_ip_frag_death_row *dr, struct rte_mbuf *mb, uint64_t tms, struct rte_ipv4_hdr *ip_hdr)
struct rte_ip_frag_tbl * rte_ip_frag_table_create(uint32_t bucket_num, uint32_t bucket_entries, uint32_t max_entries, uint64_t max_cycles, int socket_id)
#define RTE_IP_FRAG_DEATH_ROW_MBUF_LEN
Definition: rte_ip_frag.h:34
struct rte_mbuf * rte_ipv6_frag_reassemble_packet(struct rte_ip_frag_tbl *tbl, struct rte_ip_frag_death_row *dr, struct rte_mbuf *mb, uint64_t tms, struct rte_ipv6_hdr *ip_hdr, struct rte_ipv6_fragment_ext *frag_hdr)
void rte_ip_frag_table_destroy(struct rte_ip_frag_tbl *tbl)
__rte_experimental int32_t rte_ipv4_fragment_copy_nonseg_packet(struct rte_mbuf *pkt_in, struct rte_mbuf **pkts_out, uint16_t nb_pkts_out, uint16_t mtu_size, struct rte_mempool *pool_direct)
int32_t rte_ipv6_fragment_packet(struct rte_mbuf *pkt_in, struct rte_mbuf **pkts_out, uint16_t nb_pkts_out, uint16_t mtu_size, struct rte_mempool *pool_direct, struct rte_mempool *pool_indirect)
void rte_ip_frag_free_death_row(struct rte_ip_frag_death_row *dr, uint32_t prefetch)
struct rte_mbuf * row[RTE_IP_FRAG_DEATH_ROW_MBUF_LEN]
Definition: rte_ip_frag.h:40
rte_be16_t fragment_offset
Definition: rte_ip.h:58
uint8_t proto
Definition: rte_ip.h:537