14 #include <sys/queue.h>
19 #include <rte_config.h>
23 #include <rte_compat.h>
30 #define RTE_LPM_NAMESIZE 32
33 #define RTE_LPM_MAX_DEPTH 32
36 #define RTE_LPM_TBL24_NUM_ENTRIES (1 << 24)
39 #define RTE_LPM_TBL8_GROUP_NUM_ENTRIES 256
42 #define RTE_LPM_MAX_TBL8_NUM_GROUPS (1 << 24)
45 #define RTE_LPM_TBL8_NUM_GROUPS 256
48 #define RTE_LPM_TBL8_NUM_ENTRIES (RTE_LPM_TBL8_NUM_GROUPS * \
49 RTE_LPM_TBL8_GROUP_NUM_ENTRIES)
52 #if defined(RTE_LIBRTE_LPM_DEBUG)
53 #define RTE_LPM_RETURN_IF_TRUE(cond, retval) do { \
54 if (cond) return (retval); \
57 #define RTE_LPM_RETURN_IF_TRUE(cond, retval)
61 #define RTE_LPM_VALID_EXT_ENTRY_BITMASK 0x03000000
64 #define RTE_LPM_LOOKUP_SUCCESS 0x01000000
66 #if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
69 struct rte_lpm_tbl_entry_v20 {
94 struct rte_lpm_tbl_entry {
100 uint32_t next_hop :24;
116 struct rte_lpm_tbl_entry_v20 {
127 struct rte_lpm_tbl_entry {
131 uint32_t next_hop :24;
145 struct rte_lpm_rule_v20 {
150 struct rte_lpm_rule {
156 struct rte_lpm_rule_info {
169 struct rte_lpm_tbl_entry_v20 tbl24[RTE_LPM_TBL24_NUM_ENTRIES]
171 struct rte_lpm_tbl_entry_v20 tbl8[RTE_LPM_TBL8_NUM_ENTRIES]
173 struct rte_lpm_rule_v20 rules_tbl[]
181 uint32_t number_tbl8s;
185 struct rte_lpm_tbl_entry tbl24[RTE_LPM_TBL24_NUM_ENTRIES]
187 struct rte_lpm_tbl_entry *tbl8;
188 struct rte_lpm_rule *rules_tbl;
214 rte_lpm_create_v20(
const char *name,
int socket_id,
int max_rules,
int flags);
216 rte_lpm_create_v1604(
const char *name,
int socket_id,
232 rte_lpm_find_existing_v20(
const char *name);
234 rte_lpm_find_existing_v1604(
const char *name);
247 rte_lpm_free_v20(
struct rte_lpm_v20 *lpm);
249 rte_lpm_free_v1604(
struct rte_lpm *lpm);
266 rte_lpm_add(
struct rte_lpm *lpm, uint32_t ip, uint8_t
depth, uint32_t next_hop);
268 rte_lpm_add_v20(
struct rte_lpm_v20 *lpm, uint32_t ip, uint8_t
depth,
271 rte_lpm_add_v1604(
struct rte_lpm *lpm, uint32_t ip, uint8_t
depth,
293 rte_lpm_is_rule_present_v20(
struct rte_lpm_v20 *lpm, uint32_t ip, uint8_t
depth,
296 rte_lpm_is_rule_present_v1604(
struct rte_lpm *lpm, uint32_t ip, uint8_t
depth,
314 rte_lpm_delete_v20(
struct rte_lpm_v20 *lpm, uint32_t ip, uint8_t
depth);
316 rte_lpm_delete_v1604(
struct rte_lpm *lpm, uint32_t ip, uint8_t
depth);
327 rte_lpm_delete_all_v20(
struct rte_lpm_v20 *lpm);
329 rte_lpm_delete_all_v1604(
struct rte_lpm *lpm);
346 unsigned tbl24_index = (ip >> 8);
348 const uint32_t *ptbl;
351 RTE_LPM_RETURN_IF_TRUE(((lpm == NULL) || (next_hop == NULL)), -EINVAL);
354 ptbl = (
const uint32_t *)(&lpm->tbl24[tbl24_index]);
362 if (
unlikely((tbl_entry & RTE_LPM_VALID_EXT_ENTRY_BITMASK) ==
363 RTE_LPM_VALID_EXT_ENTRY_BITMASK)) {
365 unsigned tbl8_index = (uint8_t)ip +
366 (((uint32_t)tbl_entry & 0x00FFFFFF) *
367 RTE_LPM_TBL8_GROUP_NUM_ENTRIES);
369 ptbl = (
const uint32_t *)&lpm->tbl8[tbl8_index];
373 *next_hop = ((uint32_t)tbl_entry & 0x00FFFFFF);
397 #define rte_lpm_lookup_bulk(lpm, ips, next_hops, n) \
398 rte_lpm_lookup_bulk_func(lpm, ips, next_hops, n)
401 rte_lpm_lookup_bulk_func(
const struct rte_lpm *lpm,
const uint32_t *ips,
402 uint32_t *next_hops,
const unsigned n)
405 unsigned tbl24_indexes[n];
406 const uint32_t *ptbl;
409 RTE_LPM_RETURN_IF_TRUE(((lpm == NULL) || (ips == NULL) ||
410 (next_hops == NULL)), -EINVAL);
412 for (i = 0; i < n; i++) {
413 tbl24_indexes[i] = ips[i] >> 8;
416 for (i = 0; i < n; i++) {
418 ptbl = (
const uint32_t *)&lpm->tbl24[tbl24_indexes[i]];
419 next_hops[i] = *ptbl;
422 if (
unlikely((next_hops[i] & RTE_LPM_VALID_EXT_ENTRY_BITMASK) ==
423 RTE_LPM_VALID_EXT_ENTRY_BITMASK)) {
425 unsigned tbl8_index = (uint8_t)ips[i] +
426 (((uint32_t)next_hops[i] & 0x00FFFFFF) *
427 RTE_LPM_TBL8_GROUP_NUM_ENTRIES);
429 ptbl = (
const uint32_t *)&lpm->tbl8[tbl8_index];
430 next_hops[i] = *ptbl;
437 #define RTE_LPM_MASKX4_RES UINT64_C(0x00ffffff00ffffff)
462 #if defined(RTE_ARCH_ARM) || defined(RTE_ARCH_ARM64)
463 #include "rte_lpm_neon.h"
464 #elif defined(RTE_ARCH_PPC_64)
465 #include "rte_lpm_altivec.h"
467 #include "rte_lpm_sse.h"
void rte_lpm_free(struct rte_lpm *lpm)
struct rte_lpm * rte_lpm_create(const char *name, int socket_id, const struct rte_lpm_config *config)
void rte_lpm_delete_all(struct rte_lpm *lpm)
#define RTE_LPM_MAX_DEPTH
static int rte_lpm_lookup(struct rte_lpm *lpm, uint32_t ip, uint32_t *next_hop)
static void rte_lpm_lookupx4(const struct rte_lpm *lpm, xmm_t ip, uint32_t hop[4], uint32_t defv)
int rte_lpm_delete(struct rte_lpm *lpm, uint32_t ip, uint8_t depth)
#define __rte_cache_aligned
#define RTE_LPM_LOOKUP_SUCCESS
int rte_lpm_add(struct rte_lpm *lpm, uint32_t ip, uint8_t depth, uint32_t next_hop)
int rte_lpm_is_rule_present(struct rte_lpm *lpm, uint32_t ip, uint8_t depth, uint32_t *next_hop)
struct rte_lpm * rte_lpm_find_existing(const char *name)