* @file
* RTE Table
*
- * This tool is part of the Intel DPDK Packet Framework tool suite and provides
+ * This tool is part of the DPDK Packet Framework tool suite and provides
* a standard interface to implement different types of lookup tables for data
* plane processing.
*
***/
#include <stdint.h>
-#include <rte_mbuf.h>
#include <rte_port.h>
+struct rte_mbuf;
+
+/** Lookup table statistics */
+struct rte_table_stats {
+ uint64_t n_pkts_in;
+ uint64_t n_pkts_lookup_miss;
+};
+
/**
* Lookup table create
*
int *key_found,
void *entry);
+/**
+ * Lookup table entry add bulk
+ *
+ * @param table
+ * Handle to lookup table instance
+ * @param key
+ * Array containing lookup keys
+ * @param entries
+ * Array containing data to be associated with each key. Every item in the
+ * array has to point to a valid memory buffer where the first entry_size
+ * bytes (table create parameter) are populated with the data.
+ * @param n_keys
+ * Number of keys to add
+ * @param key_found
+ * After successful invocation, key_found for every item in the array is set
+ * to a value different than 0 if the current key is already present in the
+ * table and to 0 if not. This pointer has to be set to a valid memory
+ * location before the table entry add function is called.
+ * @param entries_ptr
+ * After successful invocation, array *entries_ptr stores the handle to the
+ * table entry containing the data associated with every key. This handle can
+ * be used to perform further read-write accesses to this entry. This handle
+ * is valid until the key is deleted from the table or the same key is
+ * re-added to the table, typically to associate it with different data. This
+ * pointer has to be set to a valid memory location before the function is
+ * called.
+ * @return
+ * 0 on success, error code otherwise
+ */
+typedef int (*rte_table_op_entry_add_bulk)(
+ void *table,
+ void **keys,
+ void **entries,
+ uint32_t n_keys,
+ int *key_found,
+ void **entries_ptr);
+
+/**
+ * Lookup table entry delete bulk
+ *
+ * @param table
+ * Handle to lookup table instance
+ * @param key
+ * Array containing lookup keys
+ * @param n_keys
+ * Number of keys to delete
+ * @param key_found
+ * After successful invocation, key_found for every item in the array is set
+ * to a value different than 0if the current key was present in the table
+ * before the delete operation was performed and to 0 if not. This pointer
+ * has to be set to a valid memory location before the table entry delete
+ * function is called.
+ * @param entries
+ * If entries pointer is NULL, this pointer is ignored for every entry found.
+ * Else, after successful invocation, if specific key is found in the table
+ * (key_found is different than 0 for this item after function call is
+ * completed) and item of entry array points to a valid buffer (entry is set
+ * to a value different than NULL before the function is called), then the
+ * first entry_size bytes (table create parameter) in *entry store a copy of
+ * table entry that contained the data associated with the current key before
+ * the key was deleted.
+ * @return
+ * 0 on success, error code otherwise
+ */
+typedef int (*rte_table_op_entry_delete_bulk)(
+ void *table,
+ void **keys,
+ uint32_t n_keys,
+ int *key_found,
+ void **entries);
+
/**
* Lookup table lookup
*
uint64_t *lookup_hit_mask,
void **entries);
+/**
+ * Lookup table stats read
+ *
+ * @param table
+ * Handle to lookup table instance
+ * @param stats
+ * Handle to table stats struct to copy data
+ * @param clear
+ * Flag indicating that stats should be cleared after read
+ *
+ * @return
+ * Error code or 0 on success.
+ */
+typedef int (*rte_table_op_stats_read)(
+ void *table,
+ struct rte_table_stats *stats,
+ int clear);
+
/** Lookup table interface defining the lookup table operation */
struct rte_table_ops {
- rte_table_op_create f_create; /**< Create */
- rte_table_op_free f_free; /**< Free */
- rte_table_op_entry_add f_add; /**< Entry add */
- rte_table_op_entry_delete f_delete; /**< Entry delete */
- rte_table_op_lookup f_lookup; /**< Lookup */
+ rte_table_op_create f_create; /**< Create */
+ rte_table_op_free f_free; /**< Free */
+ rte_table_op_entry_add f_add; /**< Entry add */
+ rte_table_op_entry_delete f_delete; /**< Entry delete */
+ rte_table_op_entry_add_bulk f_add_bulk; /**< Add entry bulk */
+ rte_table_op_entry_delete_bulk f_delete_bulk; /**< Delete entry bulk */
+ rte_table_op_lookup f_lookup; /**< Lookup */
+ rte_table_op_stats_read f_stats; /**< Stats */
};
#ifdef __cplusplus