New upstream version 18.08

[deb_dpdk.git] / lib / librte_table / rte_table_hash_cuckoo.h

diff --git a/lib/librte_table/rte_table_hash_cuckoo.h b/lib/librte_table/rte_table_hash_cuckoo.h
new file mode 100644 (file)
index 0000000..d9d4312
--- /dev/null
+++ b/lib/librte_table/rte_table_hash_cuckoo.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+#ifndef __INCLUDE_RTE_TABLE_HASH_CUCKOO_H__
+#define __INCLUDE_RTE_TABLE_HASH_CUCKOO_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @file
+ * RTE Table Hash Cuckoo
+ *
+ ***/
+#include <stdint.h>
+
+#include <rte_hash.h>
+
+#include "rte_table.h"
+
+/** Hash table parameters */
+struct rte_table_hash_cuckoo_params {
+       /** Name */
+       const char *name;
+
+       /** Key size (number of bytes) */
+       uint32_t key_size;
+
+       /** Byte offset within packet meta-data where the key is located */
+       uint32_t key_offset;
+
+       /** Key mask */
+       uint8_t *key_mask;
+
+       /** Number of keys */
+       uint32_t n_keys;
+
+       /** Number of buckets */
+       uint32_t n_buckets;
+
+       /** Hash function */
+       rte_hash_function f_hash;
+
+       /** Seed value for the hash function */
+       uint32_t seed;
+};
+
+/** Cuckoo hash table operations */
+extern struct rte_table_ops rte_table_hash_cuckoo_ops;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif