10  * RTE Longest Prefix Match (LPM)
31 /** Max number of characters in LPM name. */
34 /** Maximum depth value possible for IPv4 LPM. */
104 /** LPM configuration structure. */
130 /** @internal LPM structure. */
132 	/* LPM metadata. */
134 	char name[RTE_LPM_NAMESIZE];        /**< Name of the lpm. */
135 	uint32_t max_rules; /**< Max. balanced rules per lpm. */
139 	/* LPM Tables. */
141 			__rte_cache_aligned; /**< LPM tbl24 table. */
142 	struct rte_lpm_tbl_entry *tbl8; /**< LPM tbl8 table. */
143 	struct rte_lpm_rule *rules_tbl; /**< LPM rules. */
147  * Create an LPM object.
150  *   LPM object name
152  *   NUMA socket ID for LPM table memory allocation
156  *   Handle to LPM object on success, NULL otherwise with rte_errno set
170  * Find an existing LPM object and return a pointer to it.
173  *   Name of the lpm object as passed to rte_lpm_create()
175  *   Pointer to lpm object or NULL if object not found with rte_errno
183  * Free an LPM object.
185  * @param lpm
186  *   LPM object handle
191 rte_lpm_free(struct rte_lpm *lpm);
194  * Add a rule to the LPM table.
196  * @param lpm
197  *   LPM object handle
199  *   IP of the rule to be added to the LPM table
201  *   Depth of the rule to be added to the LPM table
203  *   Next hop of the rule to be added to the LPM table
208 rte_lpm_add(struct rte_lpm *lpm, uint32_t ip, uint8_t depth, uint32_t next_hop);
211  * Check if a rule is present in the LPM table,
214  * @param lpm
215  *   LPM object handle
226 rte_lpm_is_rule_present(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
230  * Delete a rule from the LPM table.
232  * @param lpm
233  *   LPM object handle
235  *   IP of the rule to be deleted from the LPM table
237  *   Depth of the rule to be deleted from the LPM table
246 rte_lpm_delete(struct rte_lpm *lpm, uint32_t ip, uint8_t depth,
250  * Delete all rules from the LPM table.
252  * @param lpm
253  *   LPM object handle
256 rte_lpm_delete_all(struct rte_lpm *lpm);
259  * Lookup an IP into the LPM table.
261  * @param lpm
262  *   LPM object handle
264  *   IP to be looked up in the LPM table
271 rte_lpm_lookup(struct rte_lpm *lpm, uint32_t ip, uint32_t *next_hop)  in rte_lpm_lookup()  argument
278 	RTE_LPM_RETURN_IF_TRUE(((lpm == NULL) || (next_hop == NULL)), -EINVAL);  in rte_lpm_lookup()
281 	ptbl = (const uint32_t *)(&lpm->tbl24[tbl24_index]);  in rte_lpm_lookup()
296 		ptbl = (const uint32_t *)&lpm->tbl8[tbl8_index];  in rte_lpm_lookup()
305  * Lookup multiple IP addresses in an LPM table. This may be implemented as a
308  * @param lpm
309  *   LPM object handle
311  *   Array of IPs to be looked up in the LPM table
324 #define rte_lpm_lookup_bulk(lpm, ips, next_hops, n) \  argument
325 		rte_lpm_lookup_bulk_func(lpm, ips, next_hops, n)
328 rte_lpm_lookup_bulk_func(const struct rte_lpm *lpm, const uint32_t *ips,  in rte_lpm_lookup_bulk_func()  argument
336 	RTE_LPM_RETURN_IF_TRUE(((lpm == NULL) || (ips == NULL) ||  in rte_lpm_lookup_bulk_func()
345 		ptbl = (const uint32_t *)&lpm->tbl24[tbl24_indexes[i]];  in rte_lpm_lookup_bulk_func()
356 			ptbl = (const uint32_t *)&lpm->tbl8[tbl8_index];  in rte_lpm_lookup_bulk_func()
367  * Lookup four IP addresses in an LPM table.
369  * @param lpm
370  *   LPM object handle
372  *   Four IPs to be looked up in the LPM table
387 rte_lpm_lookupx4(const struct rte_lpm *lpm, xmm_t ip, uint32_t hop[4],