15 #include <sys/queue.h>
20 #include <rte_config.h>
31 #define RTE_LPM_NAMESIZE 32
34 #define RTE_LPM_MAX_DEPTH 32
37 #define RTE_LPM_TBL24_NUM_ENTRIES (1 << 24)
40 #define RTE_LPM_TBL8_GROUP_NUM_ENTRIES 256
43 #define RTE_LPM_MAX_TBL8_NUM_GROUPS (1 << 24)
46 #define RTE_LPM_TBL8_NUM_GROUPS 256
49 #define RTE_LPM_TBL8_NUM_ENTRIES (RTE_LPM_TBL8_NUM_GROUPS * \
50 RTE_LPM_TBL8_GROUP_NUM_ENTRIES)
53 #if defined(RTE_LIBRTE_LPM_DEBUG)
54 #define RTE_LPM_RETURN_IF_TRUE(cond, retval) do { \
55 if (cond) return (retval); \
58 #define RTE_LPM_RETURN_IF_TRUE(cond, retval)
62 #define RTE_LPM_VALID_EXT_ENTRY_BITMASK 0x03000000
65 #define RTE_LPM_LOOKUP_SUCCESS 0x01000000
68 #define RTE_LPM_RCU_DQ_RECLAIM_MAX 16
78 #if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
81 struct rte_lpm_tbl_entry {
87 uint32_t next_hop :24;
97 uint32_t valid_group :1;
104 struct rte_lpm_tbl_entry {
106 uint32_t valid_group :1;
108 uint32_t next_hop :24;
124 struct rte_lpm_tbl_entry tbl24[RTE_LPM_TBL24_NUM_ENTRIES]
126 struct rte_lpm_tbl_entry *tbl8;
131 struct rte_rcu_qsbr *v;
139 uint32_t reclaim_thd;
140 uint32_t reclaim_max;
226 rte_lpm_add(
struct rte_lpm *lpm, uint32_t ip, uint8_t depth, uint32_t next_hop);
286 unsigned tbl24_index = (ip >> 8);
288 const uint32_t *ptbl;
291 RTE_LPM_RETURN_IF_TRUE(((lpm == NULL) || (next_hop == NULL)), -EINVAL);
294 ptbl = (
const uint32_t *)(&lpm->tbl24[tbl24_index]);
302 if (
unlikely((tbl_entry & RTE_LPM_VALID_EXT_ENTRY_BITMASK) ==
303 RTE_LPM_VALID_EXT_ENTRY_BITMASK)) {
305 unsigned tbl8_index = (uint8_t)ip +
306 (((uint32_t)tbl_entry & 0x00FFFFFF) *
307 RTE_LPM_TBL8_GROUP_NUM_ENTRIES);
309 ptbl = (
const uint32_t *)&lpm->tbl8[tbl8_index];
313 *next_hop = ((uint32_t)tbl_entry & 0x00FFFFFF);
337 #define rte_lpm_lookup_bulk(lpm, ips, next_hops, n) \
338 rte_lpm_lookup_bulk_func(lpm, ips, next_hops, n)
341 rte_lpm_lookup_bulk_func(
const struct rte_lpm *lpm,
const uint32_t *ips,
342 uint32_t *next_hops,
const unsigned n)
345 unsigned tbl24_indexes[n];
346 const uint32_t *ptbl;
349 RTE_LPM_RETURN_IF_TRUE(((lpm == NULL) || (ips == NULL) ||
350 (next_hops == NULL)), -EINVAL);
352 for (i = 0; i < n; i++) {
353 tbl24_indexes[i] = ips[i] >> 8;
356 for (i = 0; i < n; i++) {
358 ptbl = (
const uint32_t *)&lpm->tbl24[tbl24_indexes[i]];
359 next_hops[i] = *ptbl;
362 if (
unlikely((next_hops[i] & RTE_LPM_VALID_EXT_ENTRY_BITMASK) ==
363 RTE_LPM_VALID_EXT_ENTRY_BITMASK)) {
365 unsigned tbl8_index = (uint8_t)ips[i] +
366 (((uint32_t)next_hops[i] & 0x00FFFFFF) *
367 RTE_LPM_TBL8_GROUP_NUM_ENTRIES);
369 ptbl = (
const uint32_t *)&lpm->tbl8[tbl8_index];
370 next_hops[i] = *ptbl;
377 #define RTE_LPM_MASKX4_RES UINT64_C(0x00ffffff00ffffff)
402 #if defined(RTE_ARCH_ARM)
403 #ifdef RTE_HAS_SVE_ACLE
404 #include "rte_lpm_sve.h"
406 #include "rte_lpm_neon.h"
408 #elif defined(RTE_ARCH_PPC_64)
409 #include "rte_lpm_altivec.h"
411 #include "rte_lpm_sse.h"