lib: cleanup
[dpdk.git] / lib / librte_lpm / rte_lpm.c
index 5bd8ab9..2687564 100644 (file)
@@ -89,34 +89,8 @@ depth_to_range(uint8_t depth)
 /*
  * Find an existing lpm table and return a pointer to it.
  */
-struct rte_lpm_v20 *
-rte_lpm_find_existing_v20(const char *name)
-{
-       struct rte_lpm_v20 *l = NULL;
-       struct rte_tailq_entry *te;
-       struct rte_lpm_list *lpm_list;
-
-       lpm_list = RTE_TAILQ_CAST(rte_lpm_tailq.head, rte_lpm_list);
-
-       rte_mcfg_tailq_read_lock();
-       TAILQ_FOREACH(te, lpm_list, next) {
-               l = te->data;
-               if (strncmp(name, l->name, RTE_LPM_NAMESIZE) == 0)
-                       break;
-       }
-       rte_mcfg_tailq_read_unlock();
-
-       if (te == NULL) {
-               rte_errno = ENOENT;
-               return NULL;
-       }
-
-       return l;
-}
-VERSION_SYMBOL(rte_lpm_find_existing, _v20, 2.0);
-
 struct rte_lpm *
-rte_lpm_find_existing_v1604(const char *name)
+rte_lpm_find_existing(const char *name)
 {
        struct rte_lpm *l = NULL;
        struct rte_tailq_entry *te;
@@ -139,88 +113,12 @@ rte_lpm_find_existing_v1604(const char *name)
 
        return l;
 }
-BIND_DEFAULT_SYMBOL(rte_lpm_find_existing, _v1604, 16.04);
-MAP_STATIC_SYMBOL(struct rte_lpm *rte_lpm_find_existing(const char *name),
-               rte_lpm_find_existing_v1604);
 
 /*
  * Allocates memory for LPM object
  */
-struct rte_lpm_v20 *
-rte_lpm_create_v20(const char *name, int socket_id, int max_rules,
-               __rte_unused int flags)
-{
-       char mem_name[RTE_LPM_NAMESIZE];
-       struct rte_lpm_v20 *lpm = NULL;
-       struct rte_tailq_entry *te;
-       uint32_t mem_size;
-       struct rte_lpm_list *lpm_list;
-
-       lpm_list = RTE_TAILQ_CAST(rte_lpm_tailq.head, rte_lpm_list);
-
-       RTE_BUILD_BUG_ON(sizeof(struct rte_lpm_tbl_entry_v20) != 2);
-
-       /* Check user arguments. */
-       if ((name == NULL) || (socket_id < -1) || (max_rules == 0)) {
-               rte_errno = EINVAL;
-               return NULL;
-       }
-
-       snprintf(mem_name, sizeof(mem_name), "LPM_%s", name);
-
-       /* Determine the amount of memory to allocate. */
-       mem_size = sizeof(*lpm) + (sizeof(lpm->rules_tbl[0]) * max_rules);
-
-       rte_mcfg_tailq_write_lock();
-
-       /* guarantee there's no existing */
-       TAILQ_FOREACH(te, lpm_list, next) {
-               lpm = te->data;
-               if (strncmp(name, lpm->name, RTE_LPM_NAMESIZE) == 0)
-                       break;
-       }
-
-       if (te != NULL) {
-               lpm = NULL;
-               rte_errno = EEXIST;
-               goto exit;
-       }
-
-       /* allocate tailq entry */
-       te = rte_zmalloc("LPM_TAILQ_ENTRY", sizeof(*te), 0);
-       if (te == NULL) {
-               RTE_LOG(ERR, LPM, "Failed to allocate tailq entry\n");
-               rte_errno = ENOMEM;
-               goto exit;
-       }
-
-       /* Allocate memory to store the LPM data structures. */
-       lpm = rte_zmalloc_socket(mem_name, mem_size,
-                       RTE_CACHE_LINE_SIZE, socket_id);
-       if (lpm == NULL) {
-               RTE_LOG(ERR, LPM, "LPM memory allocation failed\n");
-               rte_free(te);
-               rte_errno = ENOMEM;
-               goto exit;
-       }
-
-       /* Save user arguments. */
-       lpm->max_rules = max_rules;
-       strlcpy(lpm->name, name, sizeof(lpm->name));
-
-       te->data = lpm;
-
-       TAILQ_INSERT_TAIL(lpm_list, te, next);
-
-exit:
-       rte_mcfg_tailq_write_unlock();
-
-       return lpm;
-}
-VERSION_SYMBOL(rte_lpm_create, _v20, 2.0);
-
 struct rte_lpm *
-rte_lpm_create_v1604(const char *name, int socket_id,
+rte_lpm_create(const char *name, int socket_id,
                const struct rte_lpm_config *config)
 {
        char mem_name[RTE_LPM_NAMESIZE];
@@ -320,45 +218,12 @@ exit:
 
        return lpm;
 }
-BIND_DEFAULT_SYMBOL(rte_lpm_create, _v1604, 16.04);
-MAP_STATIC_SYMBOL(
-       struct rte_lpm *rte_lpm_create(const char *name, int socket_id,
-                       const struct rte_lpm_config *config), rte_lpm_create_v1604);
 
 /*
  * Deallocates memory for given LPM table.
  */
 void
-rte_lpm_free_v20(struct rte_lpm_v20 *lpm)
-{
-       struct rte_lpm_list *lpm_list;
-       struct rte_tailq_entry *te;
-
-       /* Check user arguments. */
-       if (lpm == NULL)
-               return;
-
-       lpm_list = RTE_TAILQ_CAST(rte_lpm_tailq.head, rte_lpm_list);
-
-       rte_mcfg_tailq_write_lock();
-
-       /* find our tailq entry */
-       TAILQ_FOREACH(te, lpm_list, next) {
-               if (te->data == (void *) lpm)
-                       break;
-       }
-       if (te != NULL)
-               TAILQ_REMOVE(lpm_list, te, next);
-
-       rte_mcfg_tailq_write_unlock();
-
-       rte_free(lpm);
-       rte_free(te);
-}
-VERSION_SYMBOL(rte_lpm_free, _v20, 2.0);
-
-void
-rte_lpm_free_v1604(struct rte_lpm *lpm)
+rte_lpm_free(struct rte_lpm *lpm)
 {
        struct rte_lpm_list *lpm_list;
        struct rte_tailq_entry *te;
@@ -386,9 +251,6 @@ rte_lpm_free_v1604(struct rte_lpm *lpm)
        rte_free(lpm);
        rte_free(te);
 }
-BIND_DEFAULT_SYMBOL(rte_lpm_free, _v1604, 16.04);
-MAP_STATIC_SYMBOL(void rte_lpm_free(struct rte_lpm *lpm),
-               rte_lpm_free_v1604);
 
 /*
  * Adds a rule to the rule table.
@@ -401,79 +263,7 @@ MAP_STATIC_SYMBOL(void rte_lpm_free(struct rte_lpm *lpm),
  * NOTE: Valid range for depth parameter is 1 .. 32 inclusive.
  */
 static int32_t
-rule_add_v20(struct rte_lpm_v20 *lpm, uint32_t ip_masked, uint8_t depth,
-       uint8_t next_hop)
-{
-       uint32_t rule_gindex, rule_index, last_rule;
-       int i;
-
-       VERIFY_DEPTH(depth);
-
-       /* Scan through rule group to see if rule already exists. */
-       if (lpm->rule_info[depth - 1].used_rules > 0) {
-
-               /* rule_gindex stands for rule group index. */
-               rule_gindex = lpm->rule_info[depth - 1].first_rule;
-               /* Initialise rule_index to point to start of rule group. */
-               rule_index = rule_gindex;
-               /* Last rule = Last used rule in this rule group. */
-               last_rule = rule_gindex + lpm->rule_info[depth - 1].used_rules;
-
-               for (; rule_index < last_rule; rule_index++) {
-
-                       /* If rule already exists update its next_hop and return. */
-                       if (lpm->rules_tbl[rule_index].ip == ip_masked) {
-                               lpm->rules_tbl[rule_index].next_hop = next_hop;
-
-                               return rule_index;
-                       }
-               }
-
-               if (rule_index == lpm->max_rules)
-                       return -ENOSPC;
-       } else {
-               /* Calculate the position in which the rule will be stored. */
-               rule_index = 0;
-
-               for (i = depth - 1; i > 0; i--) {
-                       if (lpm->rule_info[i - 1].used_rules > 0) {
-                               rule_index = lpm->rule_info[i - 1].first_rule
-                                               + lpm->rule_info[i - 1].used_rules;
-                               break;
-                       }
-               }
-               if (rule_index == lpm->max_rules)
-                       return -ENOSPC;
-
-               lpm->rule_info[depth - 1].first_rule = rule_index;
-       }
-
-       /* Make room for the new rule in the array. */
-       for (i = RTE_LPM_MAX_DEPTH; i > depth; i--) {
-               if (lpm->rule_info[i - 1].first_rule
-                               + lpm->rule_info[i - 1].used_rules == lpm->max_rules)
-                       return -ENOSPC;
-
-               if (lpm->rule_info[i - 1].used_rules > 0) {
-                       lpm->rules_tbl[lpm->rule_info[i - 1].first_rule
-                               + lpm->rule_info[i - 1].used_rules]
-                                       = lpm->rules_tbl[lpm->rule_info[i - 1].first_rule];
-                       lpm->rule_info[i - 1].first_rule++;
-               }
-       }
-
-       /* Add the new rule. */
-       lpm->rules_tbl[rule_index].ip = ip_masked;
-       lpm->rules_tbl[rule_index].next_hop = next_hop;
-
-       /* Increment the used rules counter for this rule group. */
-       lpm->rule_info[depth - 1].used_rules++;
-
-       return rule_index;
-}
-
-static int32_t
-rule_add_v1604(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
+rule_add(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
        uint32_t next_hop)
 {
        uint32_t rule_gindex, rule_index, last_rule;
@@ -549,30 +339,7 @@ rule_add_v1604(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
  * NOTE: Valid range for depth parameter is 1 .. 32 inclusive.
  */
 static void
-rule_delete_v20(struct rte_lpm_v20 *lpm, int32_t rule_index, uint8_t depth)
-{
-       int i;
-
-       VERIFY_DEPTH(depth);
-
-       lpm->rules_tbl[rule_index] =
-                       lpm->rules_tbl[lpm->rule_info[depth - 1].first_rule
-                               + lpm->rule_info[depth - 1].used_rules - 1];
-
-       for (i = depth; i < RTE_LPM_MAX_DEPTH; i++) {
-               if (lpm->rule_info[i].used_rules > 0) {
-                       lpm->rules_tbl[lpm->rule_info[i].first_rule - 1] =
-                               lpm->rules_tbl[lpm->rule_info[i].first_rule
-                                       + lpm->rule_info[i].used_rules - 1];
-                       lpm->rule_info[i].first_rule--;
-               }
-       }
-
-       lpm->rule_info[depth - 1].used_rules--;
-}
-
-static void
-rule_delete_v1604(struct rte_lpm *lpm, int32_t rule_index, uint8_t depth)
+rule_delete(struct rte_lpm *lpm, int32_t rule_index, uint8_t depth)
 {
        int i;
 
@@ -599,28 +366,7 @@ rule_delete_v1604(struct rte_lpm *lpm, int32_t rule_index, uint8_t depth)
  * NOTE: Valid range for depth parameter is 1 .. 32 inclusive.
  */
 static int32_t
-rule_find_v20(struct rte_lpm_v20 *lpm, uint32_t ip_masked, uint8_t depth)
-{
-       uint32_t rule_gindex, last_rule, rule_index;
-
-       VERIFY_DEPTH(depth);
-
-       rule_gindex = lpm->rule_info[depth - 1].first_rule;
-       last_rule = rule_gindex + lpm->rule_info[depth - 1].used_rules;
-
-       /* Scan used rules at given depth to find rule. */
-       for (rule_index = rule_gindex; rule_index < last_rule; rule_index++) {
-               /* If rule is found return the rule index. */
-               if (lpm->rules_tbl[rule_index].ip == ip_masked)
-                       return rule_index;
-       }
-
-       /* If rule is not found return -EINVAL. */
-       return -EINVAL;
-}
-
-static int32_t
-rule_find_v1604(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth)
+rule_find(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth)
 {
        uint32_t rule_gindex, last_rule, rule_index;
 
@@ -644,34 +390,7 @@ rule_find_v1604(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth)
  * Find, clean and allocate a tbl8.
  */
 static int32_t
-tbl8_alloc_v20(struct rte_lpm_tbl_entry_v20 *tbl8)
-{
-       uint32_t group_idx; /* tbl8 group index. */
-       struct rte_lpm_tbl_entry_v20 *tbl8_entry;
-
-       /* Scan through tbl8 to find a free (i.e. INVALID) tbl8 group. */
-       for (group_idx = 0; group_idx < RTE_LPM_TBL8_NUM_GROUPS;
-                       group_idx++) {
-               tbl8_entry = &tbl8[group_idx * RTE_LPM_TBL8_GROUP_NUM_ENTRIES];
-               /* If a free tbl8 group is found clean it and set as VALID. */
-               if (!tbl8_entry->valid_group) {
-                       memset(&tbl8_entry[0], 0,
-                                       RTE_LPM_TBL8_GROUP_NUM_ENTRIES *
-                                       sizeof(tbl8_entry[0]));
-
-                       tbl8_entry->valid_group = VALID;
-
-                       /* Return group index for allocated tbl8 group. */
-                       return group_idx;
-               }
-       }
-
-       /* If there are no tbl8 groups free then return error. */
-       return -ENOSPC;
-}
-
-static int32_t
-tbl8_alloc_v1604(struct rte_lpm_tbl_entry *tbl8, uint32_t number_tbl8s)
+tbl8_alloc(struct rte_lpm_tbl_entry *tbl8, uint32_t number_tbl8s)
 {
        uint32_t group_idx; /* tbl8 group index. */
        struct rte_lpm_tbl_entry *tbl8_entry;
@@ -681,11 +400,19 @@ tbl8_alloc_v1604(struct rte_lpm_tbl_entry *tbl8, uint32_t number_tbl8s)
                tbl8_entry = &tbl8[group_idx * RTE_LPM_TBL8_GROUP_NUM_ENTRIES];
                /* If a free tbl8 group is found clean it and set as VALID. */
                if (!tbl8_entry->valid_group) {
+                       struct rte_lpm_tbl_entry new_tbl8_entry = {
+                               .next_hop = 0,
+                               .valid = INVALID,
+                               .depth = 0,
+                               .valid_group = VALID,
+                       };
+
                        memset(&tbl8_entry[0], 0,
                                        RTE_LPM_TBL8_GROUP_NUM_ENTRIES *
                                        sizeof(tbl8_entry[0]));
 
-                       tbl8_entry->valid_group = VALID;
+                       __atomic_store(tbl8_entry, &new_tbl8_entry,
+                                       __ATOMIC_RELAXED);
 
                        /* Return group index for allocated tbl8 group. */
                        return group_idx;
@@ -697,23 +424,20 @@ tbl8_alloc_v1604(struct rte_lpm_tbl_entry *tbl8, uint32_t number_tbl8s)
 }
 
 static void
-tbl8_free_v20(struct rte_lpm_tbl_entry_v20 *tbl8, uint32_t tbl8_group_start)
+tbl8_free(struct rte_lpm_tbl_entry *tbl8, uint32_t tbl8_group_start)
 {
        /* Set tbl8 group invalid*/
-       tbl8[tbl8_group_start].valid_group = INVALID;
-}
+       struct rte_lpm_tbl_entry zero_tbl8_entry = {0};
 
-static void
-tbl8_free_v1604(struct rte_lpm_tbl_entry *tbl8, uint32_t tbl8_group_start)
-{
-       /* Set tbl8 group invalid*/
-       tbl8[tbl8_group_start].valid_group = INVALID;
+       __atomic_store(&tbl8[tbl8_group_start], &zero_tbl8_entry,
+                       __ATOMIC_RELAXED);
 }
 
 static __rte_noinline int32_t
-add_depth_small_v20(struct rte_lpm_v20 *lpm, uint32_t ip, uint8_t depth,
-               uint8_t next_hop)
+add_depth_small(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
+               uint32_t next_hop)
 {
+#define group_idx next_hop
        uint32_t tbl24_index, tbl24_range, tbl8_index, tbl8_group_end, i, j;
 
        /* Calculate the index into Table24. */
@@ -728,12 +452,12 @@ add_depth_small_v20(struct rte_lpm_v20 *lpm, uint32_t ip, uint8_t depth,
                if (!lpm->tbl24[i].valid || (lpm->tbl24[i].valid_group == 0 &&
                                lpm->tbl24[i].depth <= depth)) {
 
-                       struct rte_lpm_tbl_entry_v20 new_tbl24_entry = {
+                       struct rte_lpm_tbl_entry new_tbl24_entry = {
+                               .next_hop = next_hop,
                                .valid = VALID,
                                .valid_group = 0,
                                .depth = depth,
                        };
-                       new_tbl24_entry.next_hop = next_hop;
 
                        /* Setting tbl24 entry in one go to avoid race
                         * conditions
@@ -756,89 +480,21 @@ add_depth_small_v20(struct rte_lpm_v20 *lpm, uint32_t ip, uint8_t depth,
                        for (j = tbl8_index; j < tbl8_group_end; j++) {
                                if (!lpm->tbl8[j].valid ||
                                                lpm->tbl8[j].depth <= depth) {
-                                       struct rte_lpm_tbl_entry_v20
+                                       struct rte_lpm_tbl_entry
                                                new_tbl8_entry = {
                                                .valid = VALID,
                                                .valid_group = VALID,
                                                .depth = depth,
+                                               .next_hop = next_hop,
                                        };
-                                       new_tbl8_entry.next_hop = next_hop;
 
                                        /*
                                         * Setting tbl8 entry in one go to avoid
                                         * race conditions
                                         */
-                                       lpm->tbl8[j] = new_tbl8_entry;
-
-                                       continue;
-                               }
-                       }
-               }
-       }
-
-       return 0;
-}
-
-static __rte_noinline int32_t
-add_depth_small_v1604(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
-               uint32_t next_hop)
-{
-#define group_idx next_hop
-       uint32_t tbl24_index, tbl24_range, tbl8_index, tbl8_group_end, i, j;
-
-       /* Calculate the index into Table24. */
-       tbl24_index = ip >> 8;
-       tbl24_range = depth_to_range(depth);
-
-       for (i = tbl24_index; i < (tbl24_index + tbl24_range); i++) {
-               /*
-                * For invalid OR valid and non-extended tbl 24 entries set
-                * entry.
-                */
-               if (!lpm->tbl24[i].valid || (lpm->tbl24[i].valid_group == 0 &&
-                               lpm->tbl24[i].depth <= depth)) {
-
-                       struct rte_lpm_tbl_entry new_tbl24_entry = {
-                               .next_hop = next_hop,
-                               .valid = VALID,
-                               .valid_group = 0,
-                               .depth = depth,
-                       };
-
-                       /* Setting tbl24 entry in one go to avoid race
-                        * conditions
-                        */
-                       __atomic_store(&lpm->tbl24[i], &new_tbl24_entry,
-                                       __ATOMIC_RELEASE);
-
-                       continue;
-               }
-
-               if (lpm->tbl24[i].valid_group == 1) {
-                       /* If tbl24 entry is valid and extended calculate the
-                        *  index into tbl8.
-                        */
-                       tbl8_index = lpm->tbl24[i].group_idx *
-                                       RTE_LPM_TBL8_GROUP_NUM_ENTRIES;
-                       tbl8_group_end = tbl8_index +
-                                       RTE_LPM_TBL8_GROUP_NUM_ENTRIES;
-
-                       for (j = tbl8_index; j < tbl8_group_end; j++) {
-                               if (!lpm->tbl8[j].valid ||
-                                               lpm->tbl8[j].depth <= depth) {
-                                       struct rte_lpm_tbl_entry
-                                               new_tbl8_entry = {
-                                               .valid = VALID,
-                                               .valid_group = VALID,
-                                               .depth = depth,
-                                               .next_hop = next_hop,
-                                       };
-
-                                       /*
-                                        * Setting tbl8 entry in one go to avoid
-                                        * race conditions
-                                        */
-                                       lpm->tbl8[j] = new_tbl8_entry;
+                                       __atomic_store(&lpm->tbl8[j],
+                                               &new_tbl8_entry,
+                                               __ATOMIC_RELAXED);
 
                                        continue;
                                }
@@ -850,134 +506,7 @@ add_depth_small_v1604(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
 }
 
 static __rte_noinline int32_t
-add_depth_big_v20(struct rte_lpm_v20 *lpm, uint32_t ip_masked, uint8_t depth,
-               uint8_t next_hop)
-{
-       uint32_t tbl24_index;
-       int32_t tbl8_group_index, tbl8_group_start, tbl8_group_end, tbl8_index,
-               tbl8_range, i;
-
-       tbl24_index = (ip_masked >> 8);
-       tbl8_range = depth_to_range(depth);
-
-       if (!lpm->tbl24[tbl24_index].valid) {
-               /* Search for a free tbl8 group. */
-               tbl8_group_index = tbl8_alloc_v20(lpm->tbl8);
-
-               /* Check tbl8 allocation was successful. */
-               if (tbl8_group_index < 0) {
-                       return tbl8_group_index;
-               }
-
-               /* Find index into tbl8 and range. */
-               tbl8_index = (tbl8_group_index *
-                               RTE_LPM_TBL8_GROUP_NUM_ENTRIES) +
-                               (ip_masked & 0xFF);
-
-               /* Set tbl8 entry. */
-               for (i = tbl8_index; i < (tbl8_index + tbl8_range); i++) {
-                       lpm->tbl8[i].depth = depth;
-                       lpm->tbl8[i].next_hop = next_hop;
-                       lpm->tbl8[i].valid = VALID;
-               }
-
-               /*
-                * Update tbl24 entry to point to new tbl8 entry. Note: The
-                * ext_flag and tbl8_index need to be updated simultaneously,
-                * so assign whole structure in one go
-                */
-
-               struct rte_lpm_tbl_entry_v20 new_tbl24_entry = {
-                       .group_idx = (uint8_t)tbl8_group_index,
-                       .valid = VALID,
-                       .valid_group = 1,
-                       .depth = 0,
-               };
-
-               __atomic_store(&lpm->tbl24[tbl24_index], &new_tbl24_entry,
-                               __ATOMIC_RELEASE);
-
-       } /* If valid entry but not extended calculate the index into Table8. */
-       else if (lpm->tbl24[tbl24_index].valid_group == 0) {
-               /* Search for free tbl8 group. */
-               tbl8_group_index = tbl8_alloc_v20(lpm->tbl8);
-
-               if (tbl8_group_index < 0) {
-                       return tbl8_group_index;
-               }
-
-               tbl8_group_start = tbl8_group_index *
-                               RTE_LPM_TBL8_GROUP_NUM_ENTRIES;
-               tbl8_group_end = tbl8_group_start +
-                               RTE_LPM_TBL8_GROUP_NUM_ENTRIES;
-
-               /* Populate new tbl8 with tbl24 value. */
-               for (i = tbl8_group_start; i < tbl8_group_end; i++) {
-                       lpm->tbl8[i].valid = VALID;
-                       lpm->tbl8[i].depth = lpm->tbl24[tbl24_index].depth;
-                       lpm->tbl8[i].next_hop =
-                                       lpm->tbl24[tbl24_index].next_hop;
-               }
-
-               tbl8_index = tbl8_group_start + (ip_masked & 0xFF);
-
-               /* Insert new rule into the tbl8 entry. */
-               for (i = tbl8_index; i < tbl8_index + tbl8_range; i++) {
-                       lpm->tbl8[i].valid = VALID;
-                       lpm->tbl8[i].depth = depth;
-                       lpm->tbl8[i].next_hop = next_hop;
-               }
-
-               /*
-                * Update tbl24 entry to point to new tbl8 entry. Note: The
-                * ext_flag and tbl8_index need to be updated simultaneously,
-                * so assign whole structure in one go.
-                */
-
-               struct rte_lpm_tbl_entry_v20 new_tbl24_entry = {
-                               .group_idx = (uint8_t)tbl8_group_index,
-                               .valid = VALID,
-                               .valid_group = 1,
-                               .depth = 0,
-               };
-
-               __atomic_store(&lpm->tbl24[tbl24_index], &new_tbl24_entry,
-                               __ATOMIC_RELEASE);
-
-       } else { /*
-               * If it is valid, extended entry calculate the index into tbl8.
-               */
-               tbl8_group_index = lpm->tbl24[tbl24_index].group_idx;
-               tbl8_group_start = tbl8_group_index *
-                               RTE_LPM_TBL8_GROUP_NUM_ENTRIES;
-               tbl8_index = tbl8_group_start + (ip_masked & 0xFF);
-
-               for (i = tbl8_index; i < (tbl8_index + tbl8_range); i++) {
-
-                       if (!lpm->tbl8[i].valid ||
-                                       lpm->tbl8[i].depth <= depth) {
-                               struct rte_lpm_tbl_entry_v20 new_tbl8_entry = {
-                                       .valid = VALID,
-                                       .depth = depth,
-                                       .valid_group = lpm->tbl8[i].valid_group,
-                               };
-                               new_tbl8_entry.next_hop = next_hop;
-                               /*
-                                * Setting tbl8 entry in one go to avoid race
-                                * condition
-                                */
-                               lpm->tbl8[i] = new_tbl8_entry;
-
-                               continue;
-                       }
-               }
-       }
-
-       return 0;
-}
-
-static __rte_noinline int32_t
-add_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
+add_depth_big(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
                uint32_t next_hop)
 {
 #define group_idx next_hop
@@ -990,7 +519,7 @@ add_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
 
        if (!lpm->tbl24[tbl24_index].valid) {
                /* Search for a free tbl8 group. */
-               tbl8_group_index = tbl8_alloc_v1604(lpm->tbl8, lpm->number_tbl8s);
+               tbl8_group_index = tbl8_alloc(lpm->tbl8, lpm->number_tbl8s);
 
                /* Check tbl8 allocation was successful. */
                if (tbl8_group_index < 0) {
@@ -1004,9 +533,14 @@ add_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
 
                /* Set tbl8 entry. */
                for (i = tbl8_index; i < (tbl8_index + tbl8_range); i++) {
-                       lpm->tbl8[i].depth = depth;
-                       lpm->tbl8[i].next_hop = next_hop;
-                       lpm->tbl8[i].valid = VALID;
+                       struct rte_lpm_tbl_entry new_tbl8_entry = {
+                               .valid = VALID,
+                               .depth = depth,
+                               .valid_group = lpm->tbl8[i].valid_group,
+                               .next_hop = next_hop,
+                       };
+                       __atomic_store(&lpm->tbl8[i], &new_tbl8_entry,
+                                       __ATOMIC_RELAXED);
                }
 
                /*
@@ -1031,7 +565,7 @@ add_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
        } /* If valid entry but not extended calculate the index into Table8. */
        else if (lpm->tbl24[tbl24_index].valid_group == 0) {
                /* Search for free tbl8 group. */
-               tbl8_group_index = tbl8_alloc_v1604(lpm->tbl8, lpm->number_tbl8s);
+               tbl8_group_index = tbl8_alloc(lpm->tbl8, lpm->number_tbl8s);
 
                if (tbl8_group_index < 0) {
                        return tbl8_group_index;
@@ -1044,19 +578,28 @@ add_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
 
                /* Populate new tbl8 with tbl24 value. */
                for (i = tbl8_group_start; i < tbl8_group_end; i++) {
-                       lpm->tbl8[i].valid = VALID;
-                       lpm->tbl8[i].depth = lpm->tbl24[tbl24_index].depth;
-                       lpm->tbl8[i].next_hop =
-                                       lpm->tbl24[tbl24_index].next_hop;
+                       struct rte_lpm_tbl_entry new_tbl8_entry = {
+                               .valid = VALID,
+                               .depth = lpm->tbl24[tbl24_index].depth,
+                               .valid_group = lpm->tbl8[i].valid_group,
+                               .next_hop = lpm->tbl24[tbl24_index].next_hop,
+                       };
+                       __atomic_store(&lpm->tbl8[i], &new_tbl8_entry,
+                                       __ATOMIC_RELAXED);
                }
 
                tbl8_index = tbl8_group_start + (ip_masked & 0xFF);
 
                /* Insert new rule into the tbl8 entry. */
                for (i = tbl8_index; i < tbl8_index + tbl8_range; i++) {
-                       lpm->tbl8[i].valid = VALID;
-                       lpm->tbl8[i].depth = depth;
-                       lpm->tbl8[i].next_hop = next_hop;
+                       struct rte_lpm_tbl_entry new_tbl8_entry = {
+                               .valid = VALID,
+                               .depth = depth,
+                               .valid_group = lpm->tbl8[i].valid_group,
+                               .next_hop = next_hop,
+                       };
+                       __atomic_store(&lpm->tbl8[i], &new_tbl8_entry,
+                                       __ATOMIC_RELAXED);
                }
 
                /*
@@ -1101,7 +644,8 @@ add_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
                                 * Setting tbl8 entry in one go to avoid race
                                 * condition
                                 */
-                               lpm->tbl8[i] = new_tbl8_entry;
+                               __atomic_store(&lpm->tbl8[i], &new_tbl8_entry,
+                                               __ATOMIC_RELAXED);
 
                                continue;
                        }
@@ -1115,48 +659,7 @@ add_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,
  * Add a route
  */
 int
-rte_lpm_add_v20(struct rte_lpm_v20 *lpm, uint32_t ip, uint8_t depth,
-               uint8_t next_hop)
-{
-       int32_t rule_index, status = 0;
-       uint32_t ip_masked;
-
-       /* Check user arguments. */
-       if ((lpm == NULL) || (depth < 1) || (depth > RTE_LPM_MAX_DEPTH))
-               return -EINVAL;
-
-       ip_masked = ip & depth_to_mask(depth);
-
-       /* Add the rule to the rule table. */
-       rule_index = rule_add_v20(lpm, ip_masked, depth, next_hop);
-
-       /* If the is no space available for new rule return error. */
-       if (rule_index < 0) {
-               return rule_index;
-       }
-
-       if (depth <= MAX_DEPTH_TBL24) {
-               status = add_depth_small_v20(lpm, ip_masked, depth, next_hop);
-       } else { /* If depth > RTE_LPM_MAX_DEPTH_TBL24 */
-               status = add_depth_big_v20(lpm, ip_masked, depth, next_hop);
-
-               /*
-                * If add fails due to exhaustion of tbl8 extensions delete
-                * rule that was added to rule table.
-                */
-               if (status < 0) {
-                       rule_delete_v20(lpm, rule_index, depth);
-
-                       return status;
-               }
-       }
-
-       return 0;
-}
-VERSION_SYMBOL(rte_lpm_add, _v20, 2.0);
-
-int
-rte_lpm_add_v1604(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
+rte_lpm_add(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
                uint32_t next_hop)
 {
        int32_t rule_index, status = 0;
@@ -1169,7 +672,7 @@ rte_lpm_add_v1604(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
        ip_masked = ip & depth_to_mask(depth);
 
        /* Add the rule to the rule table. */
-       rule_index = rule_add_v1604(lpm, ip_masked, depth, next_hop);
+       rule_index = rule_add(lpm, ip_masked, depth, next_hop);
 
        /* If the is no space available for new rule return error. */
        if (rule_index < 0) {
@@ -1177,234 +680,77 @@ rte_lpm_add_v1604(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
        }
 
        if (depth <= MAX_DEPTH_TBL24) {
-               status = add_depth_small_v1604(lpm, ip_masked, depth, next_hop);
+               status = add_depth_small(lpm, ip_masked, depth, next_hop);
        } else { /* If depth > RTE_LPM_MAX_DEPTH_TBL24 */
-               status = add_depth_big_v1604(lpm, ip_masked, depth, next_hop);
+               status = add_depth_big(lpm, ip_masked, depth, next_hop);
 
                /*
                 * If add fails due to exhaustion of tbl8 extensions delete
-                * rule that was added to rule table.
-                */
-               if (status < 0) {
-                       rule_delete_v1604(lpm, rule_index, depth);
-
-                       return status;
-               }
-       }
-
-       return 0;
-}
-BIND_DEFAULT_SYMBOL(rte_lpm_add, _v1604, 16.04);
-MAP_STATIC_SYMBOL(int rte_lpm_add(struct rte_lpm *lpm, uint32_t ip,
-               uint8_t depth, uint32_t next_hop), rte_lpm_add_v1604);
-
-/*
- * Look for a rule in the high-level rules table
- */
-int
-rte_lpm_is_rule_present_v20(struct rte_lpm_v20 *lpm, uint32_t ip, uint8_t depth,
-uint8_t *next_hop)
-{
-       uint32_t ip_masked;
-       int32_t rule_index;
-
-       /* Check user arguments. */
-       if ((lpm == NULL) ||
-               (next_hop == NULL) ||
-               (depth < 1) || (depth > RTE_LPM_MAX_DEPTH))
-               return -EINVAL;
-
-       /* Look for the rule using rule_find. */
-       ip_masked = ip & depth_to_mask(depth);
-       rule_index = rule_find_v20(lpm, ip_masked, depth);
-
-       if (rule_index >= 0) {
-               *next_hop = lpm->rules_tbl[rule_index].next_hop;
-               return 1;
-       }
-
-       /* If rule is not found return 0. */
-       return 0;
-}
-VERSION_SYMBOL(rte_lpm_is_rule_present, _v20, 2.0);
-
-int
-rte_lpm_is_rule_present_v1604(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
-uint32_t *next_hop)
-{
-       uint32_t ip_masked;
-       int32_t rule_index;
-
-       /* Check user arguments. */
-       if ((lpm == NULL) ||
-               (next_hop == NULL) ||
-               (depth < 1) || (depth > RTE_LPM_MAX_DEPTH))
-               return -EINVAL;
-
-       /* Look for the rule using rule_find. */
-       ip_masked = ip & depth_to_mask(depth);
-       rule_index = rule_find_v1604(lpm, ip_masked, depth);
-
-       if (rule_index >= 0) {
-               *next_hop = lpm->rules_tbl[rule_index].next_hop;
-               return 1;
-       }
-
-       /* If rule is not found return 0. */
-       return 0;
-}
-BIND_DEFAULT_SYMBOL(rte_lpm_is_rule_present, _v1604, 16.04);
-MAP_STATIC_SYMBOL(int rte_lpm_is_rule_present(struct rte_lpm *lpm, uint32_t ip,
-               uint8_t depth, uint32_t *next_hop), rte_lpm_is_rule_present_v1604);
-
-static int32_t
-find_previous_rule_v20(struct rte_lpm_v20 *lpm, uint32_t ip, uint8_t depth,
-               uint8_t *sub_rule_depth)
-{
-       int32_t rule_index;
-       uint32_t ip_masked;
-       uint8_t prev_depth;
-
-       for (prev_depth = (uint8_t)(depth - 1); prev_depth > 0; prev_depth--) {
-               ip_masked = ip & depth_to_mask(prev_depth);
-
-               rule_index = rule_find_v20(lpm, ip_masked, prev_depth);
-
-               if (rule_index >= 0) {
-                       *sub_rule_depth = prev_depth;
-                       return rule_index;
-               }
-       }
-
-       return -1;
-}
-
-static int32_t
-find_previous_rule_v1604(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
-               uint8_t *sub_rule_depth)
-{
-       int32_t rule_index;
-       uint32_t ip_masked;
-       uint8_t prev_depth;
-
-       for (prev_depth = (uint8_t)(depth - 1); prev_depth > 0; prev_depth--) {
-               ip_masked = ip & depth_to_mask(prev_depth);
-
-               rule_index = rule_find_v1604(lpm, ip_masked, prev_depth);
-
-               if (rule_index >= 0) {
-                       *sub_rule_depth = prev_depth;
-                       return rule_index;
-               }
-       }
-
-       return -1;
-}
-
-static int32_t
-delete_depth_small_v20(struct rte_lpm_v20 *lpm, uint32_t ip_masked,
-       uint8_t depth, int32_t sub_rule_index, uint8_t sub_rule_depth)
-{
-       uint32_t tbl24_range, tbl24_index, tbl8_group_index, tbl8_index, i, j;
-
-       /* Calculate the range and index into Table24. */
-       tbl24_range = depth_to_range(depth);
-       tbl24_index = (ip_masked >> 8);
-
-       /*
-        * Firstly check the sub_rule_index. A -1 indicates no replacement rule
-        * and a positive number indicates a sub_rule_index.
-        */
-       if (sub_rule_index < 0) {
-               /*
-                * If no replacement rule exists then invalidate entries
-                * associated with this rule.
-                */
-               for (i = tbl24_index; i < (tbl24_index + tbl24_range); i++) {
-
-                       if (lpm->tbl24[i].valid_group == 0 &&
-                                       lpm->tbl24[i].depth <= depth) {
-                               struct rte_lpm_tbl_entry_v20
-                                       zero_tbl24_entry = {
-                                               .valid = INVALID,
-                                               .depth = 0,
-                                               .valid_group = 0,
-                                       };
-                                       zero_tbl24_entry.next_hop = 0;
-                               __atomic_store(&lpm->tbl24[i],
-                                       &zero_tbl24_entry, __ATOMIC_RELEASE);
-                       } else if (lpm->tbl24[i].valid_group == 1) {
-                               /*
-                                * If TBL24 entry is extended, then there has
-                                * to be a rule with depth >= 25 in the
-                                * associated TBL8 group.
-                                */
-
-                               tbl8_group_index = lpm->tbl24[i].group_idx;
-                               tbl8_index = tbl8_group_index *
-                                               RTE_LPM_TBL8_GROUP_NUM_ENTRIES;
-
-                               for (j = tbl8_index; j < (tbl8_index +
-                                       RTE_LPM_TBL8_GROUP_NUM_ENTRIES); j++) {
-
-                                       if (lpm->tbl8[j].depth <= depth)
-                                               lpm->tbl8[j].valid = INVALID;
-                               }
-                       }
-               }
-       } else {
-               /*
-                * If a replacement rule exists then modify entries
-                * associated with this rule.
+                * rule that was added to rule table.
                 */
+               if (status < 0) {
+                       rule_delete(lpm, rule_index, depth);
 
-               struct rte_lpm_tbl_entry_v20 new_tbl24_entry = {
-                       .next_hop = lpm->rules_tbl[sub_rule_index].next_hop,
-                       .valid = VALID,
-                       .valid_group = 0,
-                       .depth = sub_rule_depth,
-               };
+                       return status;
+               }
+       }
 
-               struct rte_lpm_tbl_entry_v20 new_tbl8_entry = {
-                       .valid = VALID,
-                       .valid_group = VALID,
-                       .depth = sub_rule_depth,
-               };
-               new_tbl8_entry.next_hop =
-                               lpm->rules_tbl[sub_rule_index].next_hop;
+       return 0;
+}
 
-               for (i = tbl24_index; i < (tbl24_index + tbl24_range); i++) {
+/*
+ * Look for a rule in the high-level rules table
+ */
+int
+rte_lpm_is_rule_present(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
+uint32_t *next_hop)
+{
+       uint32_t ip_masked;
+       int32_t rule_index;
 
-                       if (lpm->tbl24[i].valid_group == 0 &&
-                                       lpm->tbl24[i].depth <= depth) {
-                               __atomic_store(&lpm->tbl24[i], &new_tbl24_entry,
-                                               __ATOMIC_RELEASE);
-                       } else  if (lpm->tbl24[i].valid_group == 1) {
-                               /*
-                                * If TBL24 entry is extended, then there has
-                                * to be a rule with depth >= 25 in the
-                                * associated TBL8 group.
-                                */
+       /* Check user arguments. */
+       if ((lpm == NULL) ||
+               (next_hop == NULL) ||
+               (depth < 1) || (depth > RTE_LPM_MAX_DEPTH))
+               return -EINVAL;
 
-                               tbl8_group_index = lpm->tbl24[i].group_idx;
-                               tbl8_index = tbl8_group_index *
-                                               RTE_LPM_TBL8_GROUP_NUM_ENTRIES;
+       /* Look for the rule using rule_find. */
+       ip_masked = ip & depth_to_mask(depth);
+       rule_index = rule_find(lpm, ip_masked, depth);
 
-                               for (j = tbl8_index; j < (tbl8_index +
-                                       RTE_LPM_TBL8_GROUP_NUM_ENTRIES); j++) {
+       if (rule_index >= 0) {
+               *next_hop = lpm->rules_tbl[rule_index].next_hop;
+               return 1;
+       }
 
-                                       if (lpm->tbl8[j].depth <= depth)
-                                               lpm->tbl8[j] = new_tbl8_entry;
-                               }
-                       }
+       /* If rule is not found return 0. */
+       return 0;
+}
+
+static int32_t
+find_previous_rule(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
+               uint8_t *sub_rule_depth)
+{
+       int32_t rule_index;
+       uint32_t ip_masked;
+       uint8_t prev_depth;
+
+       for (prev_depth = (uint8_t)(depth - 1); prev_depth > 0; prev_depth--) {
+               ip_masked = ip & depth_to_mask(prev_depth);
+
+               rule_index = rule_find(lpm, ip_masked, prev_depth);
+
+               if (rule_index >= 0) {
+                       *sub_rule_depth = prev_depth;
+                       return rule_index;
                }
        }
 
-       return 0;
+       return -1;
 }
 
 static int32_t
-delete_depth_small_v1604(struct rte_lpm *lpm, uint32_t ip_masked,
+delete_depth_small(struct rte_lpm *lpm, uint32_t ip_masked,
        uint8_t depth, int32_t sub_rule_index, uint8_t sub_rule_depth)
 {
 #define group_idx next_hop
@@ -1491,7 +837,9 @@ delete_depth_small_v1604(struct rte_lpm *lpm, uint32_t ip_masked,
                                        RTE_LPM_TBL8_GROUP_NUM_ENTRIES); j++) {
 
                                        if (lpm->tbl8[j].depth <= depth)
-                                               lpm->tbl8[j] = new_tbl8_entry;
+                                               __atomic_store(&lpm->tbl8[j],
+                                                       &new_tbl8_entry,
+                                                       __ATOMIC_RELAXED);
                                }
                        }
                }
@@ -1509,54 +857,7 @@ delete_depth_small_v1604(struct rte_lpm *lpm, uint32_t ip_masked,
  * thus can be recycled
  */
 static int32_t
-tbl8_recycle_check_v20(struct rte_lpm_tbl_entry_v20 *tbl8,
-               uint32_t tbl8_group_start)
-{
-       uint32_t tbl8_group_end, i;
-       tbl8_group_end = tbl8_group_start + RTE_LPM_TBL8_GROUP_NUM_ENTRIES;
-
-       /*
-        * Check the first entry of the given tbl8. If it is invalid we know
-        * this tbl8 does not contain any rule with a depth < RTE_LPM_MAX_DEPTH
-        *  (As they would affect all entries in a tbl8) and thus this table
-        *  can not be recycled.
-        */
-       if (tbl8[tbl8_group_start].valid) {
-               /*
-                * If first entry is valid check if the depth is less than 24
-                * and if so check the rest of the entries to verify that they
-                * are all of this depth.
-                */
-               if (tbl8[tbl8_group_start].depth <= MAX_DEPTH_TBL24) {
-                       for (i = (tbl8_group_start + 1); i < tbl8_group_end;
-                                       i++) {
-
-                               if (tbl8[i].depth !=
-                                               tbl8[tbl8_group_start].depth) {
-
-                                       return -EEXIST;
-                               }
-                       }
-                       /* If all entries are the same return the tb8 index */
-                       return tbl8_group_start;
-               }
-
-               return -EEXIST;
-       }
-       /*
-        * If the first entry is invalid check if the rest of the entries in
-        * the tbl8 are invalid.
-        */
-       for (i = (tbl8_group_start + 1); i < tbl8_group_end; i++) {
-               if (tbl8[i].valid)
-                       return -EEXIST;
-       }
-       /* If no valid entries are found then return -EINVAL. */
-       return -EINVAL;
-}
-
-static int32_t
-tbl8_recycle_check_v1604(struct rte_lpm_tbl_entry *tbl8,
+tbl8_recycle_check(struct rte_lpm_tbl_entry *tbl8,
                uint32_t tbl8_group_start)
 {
        uint32_t tbl8_group_end, i;
@@ -1603,91 +904,7 @@ tbl8_recycle_check_v1604(struct rte_lpm_tbl_entry *tbl8,
 }
 
 static int32_t
-delete_depth_big_v20(struct rte_lpm_v20 *lpm, uint32_t ip_masked,
-       uint8_t depth, int32_t sub_rule_index, uint8_t sub_rule_depth)
-{
-       uint32_t tbl24_index, tbl8_group_index, tbl8_group_start, tbl8_index,
-                       tbl8_range, i;
-       int32_t tbl8_recycle_index;
-
-       /*
-        * Calculate the index into tbl24 and range. Note: All depths larger
-        * than MAX_DEPTH_TBL24 are associated with only one tbl24 entry.
-        */
-       tbl24_index = ip_masked >> 8;
-
-       /* Calculate the index into tbl8 and range. */
-       tbl8_group_index = lpm->tbl24[tbl24_index].group_idx;
-       tbl8_group_start = tbl8_group_index * RTE_LPM_TBL8_GROUP_NUM_ENTRIES;
-       tbl8_index = tbl8_group_start + (ip_masked & 0xFF);
-       tbl8_range = depth_to_range(depth);
-
-       if (sub_rule_index < 0) {
-               /*
-                * Loop through the range of entries on tbl8 for which the
-                * rule_to_delete must be removed or modified.
-                */
-               for (i = tbl8_index; i < (tbl8_index + tbl8_range); i++) {
-                       if (lpm->tbl8[i].depth <= depth)
-                               lpm->tbl8[i].valid = INVALID;
-               }
-       } else {
-               /* Set new tbl8 entry. */
-               struct rte_lpm_tbl_entry_v20 new_tbl8_entry = {
-                       .valid = VALID,
-                       .depth = sub_rule_depth,
-                       .valid_group = lpm->tbl8[tbl8_group_start].valid_group,
-               };
-
-               new_tbl8_entry.next_hop =
-                               lpm->rules_tbl[sub_rule_index].next_hop;
-               /*
-                * Loop through the range of entries on tbl8 for which the
-                * rule_to_delete must be modified.
-                */
-               for (i = tbl8_index; i < (tbl8_index + tbl8_range); i++) {
-                       if (lpm->tbl8[i].depth <= depth)
-                               lpm->tbl8[i] = new_tbl8_entry;
-               }
-       }
-
-       /*
-        * Check if there are any valid entries in this tbl8 group. If all
-        * tbl8 entries are invalid we can free the tbl8 and invalidate the
-        * associated tbl24 entry.
-        */
-
-       tbl8_recycle_index = tbl8_recycle_check_v20(lpm->tbl8, tbl8_group_start);
-
-       if (tbl8_recycle_index == -EINVAL) {
-               /* Set tbl24 before freeing tbl8 to avoid race condition.
-                * Prevent the free of the tbl8 group from hoisting.
-                */
-               lpm->tbl24[tbl24_index].valid = 0;
-               __atomic_thread_fence(__ATOMIC_RELEASE);
-               tbl8_free_v20(lpm->tbl8, tbl8_group_start);
-       } else if (tbl8_recycle_index > -1) {
-               /* Update tbl24 entry. */
-               struct rte_lpm_tbl_entry_v20 new_tbl24_entry = {
-                       .next_hop = lpm->tbl8[tbl8_recycle_index].next_hop,
-                       .valid = VALID,
-                       .valid_group = 0,
-                       .depth = lpm->tbl8[tbl8_recycle_index].depth,
-               };
-
-               /* Set tbl24 before freeing tbl8 to avoid race condition.
-                * Prevent the free of the tbl8 group from hoisting.
-                */
-               lpm->tbl24[tbl24_index] = new_tbl24_entry;
-               __atomic_thread_fence(__ATOMIC_RELEASE);
-               tbl8_free_v20(lpm->tbl8, tbl8_group_start);
-       }
-
-       return 0;
-}
-
-static int32_t
-delete_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked,
+delete_depth_big(struct rte_lpm *lpm, uint32_t ip_masked,
        uint8_t depth, int32_t sub_rule_index, uint8_t sub_rule_depth)
 {
 #define group_idx next_hop
@@ -1731,7 +948,8 @@ delete_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked,
                 */
                for (i = tbl8_index; i < (tbl8_index + tbl8_range); i++) {
                        if (lpm->tbl8[i].depth <= depth)
-                               lpm->tbl8[i] = new_tbl8_entry;
+                               __atomic_store(&lpm->tbl8[i], &new_tbl8_entry,
+                                               __ATOMIC_RELAXED);
                }
        }
 
@@ -1741,7 +959,7 @@ delete_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked,
         * associated tbl24 entry.
         */
 
-       tbl8_recycle_index = tbl8_recycle_check_v1604(lpm->tbl8, tbl8_group_start);
+       tbl8_recycle_index = tbl8_recycle_check(lpm->tbl8, tbl8_group_start);
 
        if (tbl8_recycle_index == -EINVAL) {
                /* Set tbl24 before freeing tbl8 to avoid race condition.
@@ -1749,7 +967,7 @@ delete_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked,
                 */
                lpm->tbl24[tbl24_index].valid = 0;
                __atomic_thread_fence(__ATOMIC_RELEASE);
-               tbl8_free_v1604(lpm->tbl8, tbl8_group_start);
+               tbl8_free(lpm->tbl8, tbl8_group_start);
        } else if (tbl8_recycle_index > -1) {
                /* Update tbl24 entry. */
                struct rte_lpm_tbl_entry new_tbl24_entry = {
@@ -1762,9 +980,10 @@ delete_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked,
                /* Set tbl24 before freeing tbl8 to avoid race condition.
                 * Prevent the free of the tbl8 group from hoisting.
                 */
-               lpm->tbl24[tbl24_index] = new_tbl24_entry;
+               __atomic_store(&lpm->tbl24[tbl24_index], &new_tbl24_entry,
+                               __ATOMIC_RELAXED);
                __atomic_thread_fence(__ATOMIC_RELEASE);
-               tbl8_free_v1604(lpm->tbl8, tbl8_group_start);
+               tbl8_free(lpm->tbl8, tbl8_group_start);
        }
 #undef group_idx
        return 0;
@@ -1774,61 +993,7 @@ delete_depth_big_v1604(struct rte_lpm *lpm, uint32_t ip_masked,
  * Deletes a rule
  */
 int
-rte_lpm_delete_v20(struct rte_lpm_v20 *lpm, uint32_t ip, uint8_t depth)
-{
-       int32_t rule_to_delete_index, sub_rule_index;
-       uint32_t ip_masked;
-       uint8_t sub_rule_depth;
-       /*
-        * Check input arguments. Note: IP must be a positive integer of 32
-        * bits in length therefore it need not be checked.
-        */
-       if ((lpm == NULL) || (depth < 1) || (depth > RTE_LPM_MAX_DEPTH)) {
-               return -EINVAL;
-       }
-
-       ip_masked = ip & depth_to_mask(depth);
-
-       /*
-        * Find the index of the input rule, that needs to be deleted, in the
-        * rule table.
-        */
-       rule_to_delete_index = rule_find_v20(lpm, ip_masked, depth);
-
-       /*
-        * Check if rule_to_delete_index was found. If no rule was found the
-        * function rule_find returns -EINVAL.
-        */
-       if (rule_to_delete_index < 0)
-               return -EINVAL;
-
-       /* Delete the rule from the rule table. */
-       rule_delete_v20(lpm, rule_to_delete_index, depth);
-
-       /*
-        * Find rule to replace the rule_to_delete. If there is no rule to
-        * replace the rule_to_delete we return -1 and invalidate the table
-        * entries associated with this rule.
-        */
-       sub_rule_depth = 0;
-       sub_rule_index = find_previous_rule_v20(lpm, ip, depth, &sub_rule_depth);
-
-       /*
-        * If the input depth value is less than 25 use function
-        * delete_depth_small otherwise use delete_depth_big.
-        */
-       if (depth <= MAX_DEPTH_TBL24) {
-               return delete_depth_small_v20(lpm, ip_masked, depth,
-                               sub_rule_index, sub_rule_depth);
-       } else { /* If depth > MAX_DEPTH_TBL24 */
-               return delete_depth_big_v20(lpm, ip_masked, depth, sub_rule_index,
-                               sub_rule_depth);
-       }
-}
-VERSION_SYMBOL(rte_lpm_delete, _v20, 2.0);
-
-int
-rte_lpm_delete_v1604(struct rte_lpm *lpm, uint32_t ip, uint8_t depth)
+rte_lpm_delete(struct rte_lpm *lpm, uint32_t ip, uint8_t depth)
 {
        int32_t rule_to_delete_index, sub_rule_index;
        uint32_t ip_masked;
@@ -1847,7 +1012,7 @@ rte_lpm_delete_v1604(struct rte_lpm *lpm, uint32_t ip, uint8_t depth)
         * Find the index of the input rule, that needs to be deleted, in the
         * rule table.
         */
-       rule_to_delete_index = rule_find_v1604(lpm, ip_masked, depth);
+       rule_to_delete_index = rule_find(lpm, ip_masked, depth);
 
        /*
         * Check if rule_to_delete_index was found. If no rule was found the
@@ -1857,7 +1022,7 @@ rte_lpm_delete_v1604(struct rte_lpm *lpm, uint32_t ip, uint8_t depth)
                return -EINVAL;
 
        /* Delete the rule from the rule table. */
-       rule_delete_v1604(lpm, rule_to_delete_index, depth);
+       rule_delete(lpm, rule_to_delete_index, depth);
 
        /*
         * Find rule to replace the rule_to_delete. If there is no rule to
@@ -1865,46 +1030,26 @@ rte_lpm_delete_v1604(struct rte_lpm *lpm, uint32_t ip, uint8_t depth)
         * entries associated with this rule.
         */
        sub_rule_depth = 0;
-       sub_rule_index = find_previous_rule_v1604(lpm, ip, depth, &sub_rule_depth);
+       sub_rule_index = find_previous_rule(lpm, ip, depth, &sub_rule_depth);
 
        /*
         * If the input depth value is less than 25 use function
         * delete_depth_small otherwise use delete_depth_big.
         */
        if (depth <= MAX_DEPTH_TBL24) {
-               return delete_depth_small_v1604(lpm, ip_masked, depth,
+               return delete_depth_small(lpm, ip_masked, depth,
                                sub_rule_index, sub_rule_depth);
        } else { /* If depth > MAX_DEPTH_TBL24 */
-               return delete_depth_big_v1604(lpm, ip_masked, depth, sub_rule_index,
+               return delete_depth_big(lpm, ip_masked, depth, sub_rule_index,
                                sub_rule_depth);
        }
 }
-BIND_DEFAULT_SYMBOL(rte_lpm_delete, _v1604, 16.04);
-MAP_STATIC_SYMBOL(int rte_lpm_delete(struct rte_lpm *lpm, uint32_t ip,
-               uint8_t depth), rte_lpm_delete_v1604);
 
 /*
  * Delete all rules from the LPM table.
  */
 void
-rte_lpm_delete_all_v20(struct rte_lpm_v20 *lpm)
-{
-       /* Zero rule information. */
-       memset(lpm->rule_info, 0, sizeof(lpm->rule_info));
-
-       /* Zero tbl24. */
-       memset(lpm->tbl24, 0, sizeof(lpm->tbl24));
-
-       /* Zero tbl8. */
-       memset(lpm->tbl8, 0, sizeof(lpm->tbl8));
-
-       /* Delete all rules form the rules table. */
-       memset(lpm->rules_tbl, 0, sizeof(lpm->rules_tbl[0]) * lpm->max_rules);
-}
-VERSION_SYMBOL(rte_lpm_delete_all, _v20, 2.0);
-
-void
-rte_lpm_delete_all_v1604(struct rte_lpm *lpm)
+rte_lpm_delete_all(struct rte_lpm *lpm)
 {
        /* Zero rule information. */
        memset(lpm->rule_info, 0, sizeof(lpm->rule_info));
@@ -1919,6 +1064,3 @@ rte_lpm_delete_all_v1604(struct rte_lpm *lpm)
        /* Delete all rules form the rules table. */
        memset(lpm->rules_tbl, 0, sizeof(lpm->rules_tbl[0]) * lpm->max_rules);
 }
-BIND_DEFAULT_SYMBOL(rte_lpm_delete_all, _v1604, 16.04);
-MAP_STATIC_SYMBOL(void rte_lpm_delete_all(struct rte_lpm *lpm),
-               rte_lpm_delete_all_v1604);