Imported upstream release 16.04

* gbp import-orig ../dpdk-16.04.tar.xz

Change-Id: Iac2196db782ba322f6974d8a752acc34ce5024c3
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>

20 files changed, 9851 insertions, 0 deletions

diff --git a/lib/librte_table/Makefile b/lib/librte_table/Makefile
new file mode 100644
index 00000000..7f02af3c
--- /dev/null
+++ b/lib/librte_table/Makefile
@@ -0,0 +1,85 @@
+#   BSD LICENSE
+#
+#   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+#   All rights reserved.
+#
+#   Redistribution and use in source and binary forms, with or without
+#   modification, are permitted provided that the following conditions
+#   are met:
+#
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in
+#       the documentation and/or other materials provided with the
+#       distribution.
+#     * Neither the name of Intel Corporation nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+#
+#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_table.a
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+EXPORT_MAP := rte_table_version.map
+
+LIBABIVER := 2
+
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_TABLE) += rte_table_lpm.c
+SRCS-$(CONFIG_RTE_LIBRTE_TABLE) += rte_table_lpm_ipv6.c
+ifeq ($(CONFIG_RTE_LIBRTE_ACL),y)
+SRCS-$(CONFIG_RTE_LIBRTE_TABLE) += rte_table_acl.c
+endif
+SRCS-$(CONFIG_RTE_LIBRTE_TABLE) += rte_table_hash_key8.c
+SRCS-$(CONFIG_RTE_LIBRTE_TABLE) += rte_table_hash_key16.c
+SRCS-$(CONFIG_RTE_LIBRTE_TABLE) += rte_table_hash_key32.c
+SRCS-$(CONFIG_RTE_LIBRTE_TABLE) += rte_table_hash_ext.c
+SRCS-$(CONFIG_RTE_LIBRTE_TABLE) += rte_table_hash_lru.c
+SRCS-$(CONFIG_RTE_LIBRTE_TABLE) += rte_table_array.c
+SRCS-$(CONFIG_RTE_LIBRTE_TABLE) += rte_table_stub.c
+
+# install includes
+SYMLINK-$(CONFIG_RTE_LIBRTE_TABLE)-include += rte_table.h
+SYMLINK-$(CONFIG_RTE_LIBRTE_TABLE)-include += rte_table_lpm.h
+SYMLINK-$(CONFIG_RTE_LIBRTE_TABLE)-include += rte_table_lpm_ipv6.h
+ifeq ($(CONFIG_RTE_LIBRTE_ACL),y)
+SYMLINK-$(CONFIG_RTE_LIBRTE_TABLE)-include += rte_table_acl.h
+endif
+SYMLINK-$(CONFIG_RTE_LIBRTE_TABLE)-include += rte_table_hash.h
+SYMLINK-$(CONFIG_RTE_LIBRTE_TABLE)-include += rte_lru.h
+SYMLINK-$(CONFIG_RTE_LIBRTE_TABLE)-include += rte_table_array.h
+SYMLINK-$(CONFIG_RTE_LIBRTE_TABLE)-include += rte_table_stub.h
+
+# this lib depends upon:
+DEPDIRS-$(CONFIG_RTE_LIBRTE_TABLE) := lib/librte_eal
+DEPDIRS-$(CONFIG_RTE_LIBRTE_TABLE) += lib/librte_mbuf
+DEPDIRS-$(CONFIG_RTE_LIBRTE_TABLE) += lib/librte_mempool
+DEPDIRS-$(CONFIG_RTE_LIBRTE_TABLE) += lib/librte_port
+DEPDIRS-$(CONFIG_RTE_LIBRTE_TABLE) += lib/librte_lpm
+ifeq ($(CONFIG_RTE_LIBRTE_ACL),y)
+DEPDIRS-$(CONFIG_RTE_LIBRTE_TABLE) += lib/librte_acl
+endif
+DEPDIRS-$(CONFIG_RTE_LIBRTE_TABLE) += lib/librte_hash
+
+include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/lib/librte_table/rte_lru.h b/lib/librte_table/rte_lru.h
new file mode 100644
index 00000000..e87e062d
--- /dev/null
+++ b/lib/librte_table/rte_lru.h
@@ -0,0 +1,213 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __INCLUDE_RTE_LRU_H__
+#define __INCLUDE_RTE_LRU_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#ifdef __INTEL_COMPILER
+#define GCC_VERSION (0)
+#else
+#define GCC_VERSION (__GNUC__ * 10000+__GNUC_MINOR__*100 + __GNUC_PATCHLEVEL__)
+#endif
+
+#ifndef RTE_TABLE_HASH_LRU_STRATEGY
+#ifdef __SSE4_2__
+#define RTE_TABLE_HASH_LRU_STRATEGY                        2
+#else /* if no SSE, use simple scalar version */
+#define RTE_TABLE_HASH_LRU_STRATEGY                        1
+#endif
+#endif
+
+#ifndef RTE_ARCH_X86_64
+#undef RTE_TABLE_HASH_LRU_STRATEGY
+#define RTE_TABLE_HASH_LRU_STRATEGY                        1
+#endif
+
+#if (RTE_TABLE_HASH_LRU_STRATEGY < 0) || (RTE_TABLE_HASH_LRU_STRATEGY > 3)
+#error Invalid value for RTE_TABLE_HASH_LRU_STRATEGY
+#endif
+
+#if RTE_TABLE_HASH_LRU_STRATEGY == 0
+
+#define lru_init(bucket)						\
+do									\
+	bucket = bucket;						\
+while (0)
+
+#define lru_pos(bucket) (bucket->lru_list & 0xFFFFLLU)
+
+#define lru_update(bucket, mru_val)					\
+do {									\
+	bucket = bucket;						\
+	mru_val = mru_val;						\
+} while (0)
+
+#elif RTE_TABLE_HASH_LRU_STRATEGY == 1
+
+#define lru_init(bucket)						\
+do									\
+	bucket->lru_list = 0x0000000100020003LLU;			\
+while (0)
+
+#define lru_pos(bucket) (bucket->lru_list & 0xFFFFLLU)
+
+#define lru_update(bucket, mru_val)					\
+do {									\
+	uint64_t x, pos, x0, x1, x2, mask;				\
+									\
+	x = bucket->lru_list;						\
+									\
+	pos = 4;							\
+	if ((x >> 48) == ((uint64_t) mru_val))				\
+		pos = 3;						\
+									\
+	if (((x >> 32) & 0xFFFFLLU) == ((uint64_t) mru_val))		\
+		pos = 2;						\
+									\
+	if (((x >> 16) & 0xFFFFLLU) == ((uint64_t) mru_val))		\
+		pos = 1;						\
+									\
+	if ((x & 0xFFFFLLU) == ((uint64_t) mru_val))			\
+		pos = 0;						\
+									\
+									\
+	pos <<= 4;							\
+	mask = (~0LLU) << pos;						\
+	x0 = x & (~mask);						\
+	x1 = (x >> 16) & mask;						\
+	x2 = (x << (48 - pos)) & (0xFFFFLLU << 48);			\
+	x = x0 | x1 | x2;						\
+									\
+	if (pos != 64)							\
+		bucket->lru_list = x;					\
+} while (0)
+
+#elif RTE_TABLE_HASH_LRU_STRATEGY == 2
+
+#if GCC_VERSION > 40306
+#include <x86intrin.h>
+#else
+#include <emmintrin.h>
+#include <smmintrin.h>
+#include <xmmintrin.h>
+#endif
+
+#define lru_init(bucket)						\
+do									\
+	bucket->lru_list = 0x0000000100020003LLU;			\
+while (0)
+
+#define lru_pos(bucket) (bucket->lru_list & 0xFFFFLLU)
+
+#define lru_update(bucket, mru_val)					\
+do {									\
+	/* set up the masks for all possible shuffles, depends on pos */\
+	static uint64_t masks[10] = {					\
+		/* Shuffle order; Make Zero (see _mm_shuffle_epi8 manual) */\
+		0x0100070605040302, 0x8080808080808080,			\
+		0x0302070605040100, 0x8080808080808080,			\
+		0x0504070603020100, 0x8080808080808080,			\
+		0x0706050403020100, 0x8080808080808080,			\
+		0x0706050403020100, 0x8080808080808080};		\
+	/* load up one register with repeats of mru-val  */		\
+	uint64_t mru2 = mru_val;					\
+	uint64_t mru3 = mru2 | (mru2 << 16);				\
+	uint64_t lru = bucket->lru_list;				\
+	/* XOR to cause the word we're looking for to go to zero */	\
+	uint64_t mru = lru ^ ((mru3 << 32) | mru3);			\
+	__m128i c = _mm_cvtsi64_si128(mru);				\
+	__m128i b = _mm_cvtsi64_si128(lru);				\
+	/* Find the minimum value (first zero word, if it's in there) */\
+	__m128i d = _mm_minpos_epu16(c);				\
+	/* Second word is the index to found word (first word is the value) */\
+	unsigned pos = _mm_extract_epi16(d, 1);				\
+	/* move the recently used location to top of list */		\
+	__m128i k = _mm_shuffle_epi8(b, *((__m128i *) &masks[2 * pos]));\
+	/* Finally, update the original list with the reordered data */	\
+	bucket->lru_list = _mm_extract_epi64(k, 0);			\
+	/* Phwew! */							\
+} while (0)
+
+#elif RTE_TABLE_HASH_LRU_STRATEGY == 3
+
+#if GCC_VERSION > 40306
+#include <x86intrin.h>
+#else
+#include <emmintrin.h>
+#include <smmintrin.h>
+#include <xmmintrin.h>
+#endif
+
+#define lru_init(bucket)						\
+do									\
+	bucket->lru_list = ~0LLU;					\
+while (0)
+
+
+static inline int
+f_lru_pos(uint64_t lru_list)
+{
+	__m128i lst = _mm_set_epi64x((uint64_t)-1, lru_list);
+	__m128i min = _mm_minpos_epu16(lst);
+	return _mm_extract_epi16(min, 1);
+}
+#define lru_pos(bucket) f_lru_pos(bucket->lru_list)
+
+#define lru_update(bucket, mru_val)					\
+do {									\
+	const uint64_t orvals[] = {0xFFFFLLU, 0xFFFFLLU << 16,		\
+		0xFFFFLLU << 32, 0xFFFFLLU << 48, 0LLU};		\
+	const uint64_t decs[] = {0x1000100010001LLU, 0};		\
+	__m128i lru = _mm_cvtsi64_si128(bucket->lru_list);		\
+	__m128i vdec = _mm_cvtsi64_si128(decs[mru_val>>2]);		\
+	lru = _mm_subs_epu16(lru, vdec);				\
+	bucket->lru_list = _mm_extract_epi64(lru, 0) | orvals[mru_val];	\
+} while (0)
+
+#else
+
+#error "Incorrect value for RTE_TABLE_HASH_LRU_STRATEGY"
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/lib/librte_table/rte_table.h b/lib/librte_table/rte_table.h
new file mode 100644
index 00000000..d3446a56
--- /dev/null
+++ b/lib/librte_table/rte_table.h
@@ -0,0 +1,301 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __INCLUDE_RTE_TABLE_H__
+#define __INCLUDE_RTE_TABLE_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @file
+ * RTE Table
+ *
+ * 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.
+ *
+ * Virtually any search algorithm that can uniquely associate data to a lookup
+ * key can be fitted under this lookup table abstraction. For the flow table
+ * use-case, the lookup key is an n-tuple of packet fields that uniquely
+ * identifies a traffic flow, while data represents actions and action
+ * meta-data associated with the same traffic flow.
+ *
+ ***/
+
+#include <stdint.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
+ *
+ * @param params
+ *   Parameters for lookup table creation. The underlying data structure is
+ *   different for each lookup table type.
+ * @param socket_id
+ *   CPU socket ID (e.g. for memory allocation purpose)
+ * @param entry_size
+ *   Data size of each lookup table entry (measured in bytes)
+ * @return
+ *   Handle to lookup table instance
+ */
+typedef void* (*rte_table_op_create)(void *params, int socket_id,
+	uint32_t entry_size);
+
+/**
+ * Lookup table free
+ *
+ * @param table
+ *   Handle to lookup table instance
+ * @return
+ *   0 on success, error code otherwise
+ */
+typedef int (*rte_table_op_free)(void *table);
+
+/**
+ * Lookup table entry add
+ *
+ * @param table
+ *   Handle to lookup table instance
+ * @param key
+ *   Lookup key
+ * @param entry
+ *   Data to be associated with the current key. This parameter has to point to
+ *   a valid memory buffer where the first entry_size bytes (table create
+ *   parameter) are populated with the data.
+ * @param key_found
+ *   After successful invocation, *key_found 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 entry_ptr
+ *   After successful invocation, *entry_ptr stores the handle to the table
+ *   entry containing the data associated with the current 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)(
+	void *table,
+	void *key,
+	void *entry,
+	int *key_found,
+	void **entry_ptr);
+
+/**
+ * Lookup table entry delete
+ *
+ * @param table
+ *   Handle to lookup table instance
+ * @param key
+ *   Lookup key
+ * @param key_found
+ *   After successful invocation, *key_found is set to a value different than 0
+ *   if 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 entry
+ *   After successful invocation, if the key is found in the table (*key found
+ *   is different than 0 after function call is completed) and entry 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)(
+	void *table,
+	void *key,
+	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
+ *
+ * @param table
+ *   Handle to lookup table instance
+ * @param pkts
+ *   Burst of input packets specified as array of up to 64 pointers to struct
+ *   rte_mbuf
+ * @param pkts_mask
+ *   64-bit bitmask specifying which packets in the input burst are valid. When
+ *   pkts_mask bit n is set, then element n of pkts array is pointing to a
+ *   valid packet. Otherwise, element n of pkts array does not point to a valid
+ *   packet, therefore it will not be accessed.
+ * @param lookup_hit_mask
+ *   Once the table lookup operation is completed, this 64-bit bitmask
+ *   specifies which of the valid packets in the input burst resulted in lookup
+ *   hit. For each valid input packet (pkts_mask bit n is set), the following
+ *   are true on lookup hit: lookup_hit_mask bit n is set, element n of entries
+ *   array is valid and it points to the lookup table entry that was hit. For
+ *   each valid input packet (pkts_mask bit n is set), the following are true
+ *   on lookup miss: lookup_hit_mask bit n is not set and element n of entries
+ *   array is not valid.
+ * @param entries
+ *   Once the table lookup operation is completed, this array provides the
+ *   lookup table entries that were hit, as described above. It is required
+ *   that this array is always pre-allocated by the caller of this function
+ *   with exactly 64 elements. The implementation is allowed to speculatively
+ *   modify the elements of this array, so elements marked as invalid in
+ *   lookup_hit_mask once the table lookup operation is completed might have
+ *   been modified by this function.
+ * @return
+ *   0 on success, error code otherwise
+ */
+typedef int (*rte_table_op_lookup)(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	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_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
+}
+#endif
+
+#endif
diff --git a/lib/librte_table/rte_table_acl.c b/lib/librte_table/rte_table_acl.c
new file mode 100644
index 00000000..c1eb8488
--- /dev/null
+++ b/lib/librte_table/rte_table_acl.c
@@ -0,0 +1,835 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <string.h>
+#include <stdio.h>
+
+#include <rte_common.h>
+#include <rte_mbuf.h>
+#include <rte_memory.h>
+#include <rte_malloc.h>
+#include <rte_log.h>
+
+#include "rte_table_acl.h"
+#include <rte_ether.h>
+
+#ifdef RTE_TABLE_STATS_COLLECT
+
+#define RTE_TABLE_ACL_STATS_PKTS_IN_ADD(table, val) \
+	table->stats.n_pkts_in += val
+#define RTE_TABLE_ACL_STATS_PKTS_LOOKUP_MISS(table, val) \
+	table->stats.n_pkts_lookup_miss += val
+
+#else
+
+#define RTE_TABLE_ACL_STATS_PKTS_IN_ADD(table, val)
+#define RTE_TABLE_ACL_STATS_PKTS_LOOKUP_MISS(table, val)
+
+#endif
+
+struct rte_table_acl {
+	struct rte_table_stats stats;
+
+	/* Low-level ACL table */
+	char name[2][RTE_ACL_NAMESIZE];
+	struct rte_acl_param acl_params; /* for creating low level acl table */
+	struct rte_acl_config cfg; /* Holds the field definitions (metadata) */
+	struct rte_acl_ctx *ctx;
+	uint32_t name_id;
+
+	/* Input parameters */
+	uint32_t n_rules;
+	uint32_t entry_size;
+
+	/* Internal tables */
+	uint8_t *action_table;
+	struct rte_acl_rule **acl_rule_list; /* Array of pointers to rules */
+	uint8_t *acl_rule_memory; /* Memory to store the rules */
+
+	/* Memory to store the action table and stack of free entries */
+	uint8_t memory[0] __rte_cache_aligned;
+};
+
+
+static void *
+rte_table_acl_create(
+	void *params,
+	int socket_id,
+	uint32_t entry_size)
+{
+	struct rte_table_acl_params *p = (struct rte_table_acl_params *) params;
+	struct rte_table_acl *acl;
+	uint32_t action_table_size, acl_rule_list_size, acl_rule_memory_size;
+	uint32_t total_size;
+
+	RTE_BUILD_BUG_ON(((sizeof(struct rte_table_acl) % RTE_CACHE_LINE_SIZE)
+		!= 0));
+
+	/* Check input parameters */
+	if (p == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: Invalid value for params\n", __func__);
+		return NULL;
+	}
+	if (p->name == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: Invalid value for name\n", __func__);
+		return NULL;
+	}
+	if (p->n_rules == 0) {
+		RTE_LOG(ERR, TABLE, "%s: Invalid value for n_rules\n",
+			__func__);
+		return NULL;
+	}
+	if ((p->n_rule_fields == 0) ||
+	    (p->n_rule_fields > RTE_ACL_MAX_FIELDS)) {
+		RTE_LOG(ERR, TABLE, "%s: Invalid value for n_rule_fields\n",
+			__func__);
+		return NULL;
+	}
+
+	entry_size = RTE_ALIGN(entry_size, sizeof(uint64_t));
+
+	/* Memory allocation */
+	action_table_size = RTE_CACHE_LINE_ROUNDUP(p->n_rules * entry_size);
+	acl_rule_list_size =
+		RTE_CACHE_LINE_ROUNDUP(p->n_rules * sizeof(struct rte_acl_rule *));
+	acl_rule_memory_size = RTE_CACHE_LINE_ROUNDUP(p->n_rules *
+		RTE_ACL_RULE_SZ(p->n_rule_fields));
+	total_size = sizeof(struct rte_table_acl) + action_table_size +
+		acl_rule_list_size + acl_rule_memory_size;
+
+	acl = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE,
+		socket_id);
+	if (acl == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot allocate %u bytes for ACL table\n",
+			__func__, total_size);
+		return NULL;
+	}
+
+	acl->action_table = &acl->memory[0];
+	acl->acl_rule_list =
+		(struct rte_acl_rule **) &acl->memory[action_table_size];
+	acl->acl_rule_memory = (uint8_t *)
+		&acl->memory[action_table_size + acl_rule_list_size];
+
+	/* Initialization of internal fields */
+	snprintf(acl->name[0], RTE_ACL_NAMESIZE, "%s_a", p->name);
+	snprintf(acl->name[1], RTE_ACL_NAMESIZE, "%s_b", p->name);
+	acl->name_id = 1;
+
+	acl->acl_params.name = acl->name[acl->name_id];
+	acl->acl_params.socket_id = socket_id;
+	acl->acl_params.rule_size = RTE_ACL_RULE_SZ(p->n_rule_fields);
+	acl->acl_params.max_rule_num = p->n_rules;
+
+	acl->cfg.num_categories = 1;
+	acl->cfg.num_fields = p->n_rule_fields;
+	memcpy(&acl->cfg.defs[0], &p->field_format[0],
+		p->n_rule_fields * sizeof(struct rte_acl_field_def));
+
+	acl->ctx = NULL;
+
+	acl->n_rules = p->n_rules;
+	acl->entry_size = entry_size;
+
+	return acl;
+}
+
+static int
+rte_table_acl_free(void *table)
+{
+	struct rte_table_acl *acl = (struct rte_table_acl *) table;
+
+	/* Check input parameters */
+	if (table == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	/* Free previously allocated resources */
+	if (acl->ctx != NULL)
+		rte_acl_free(acl->ctx);
+
+	rte_free(acl);
+
+	return 0;
+}
+
+RTE_ACL_RULE_DEF(rte_pipeline_acl_rule, RTE_ACL_MAX_FIELDS);
+
+static int
+rte_table_acl_build(struct rte_table_acl *acl, struct rte_acl_ctx **acl_ctx)
+{
+	struct rte_acl_ctx *ctx = NULL;
+	uint32_t n_rules, i;
+	int status;
+
+	/* Create low level ACL table */
+	ctx = rte_acl_create(&acl->acl_params);
+	if (ctx == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: Cannot create low level ACL table\n",
+			__func__);
+		return -1;
+	}
+
+	/* Add rules to low level ACL table */
+	n_rules = 0;
+	for (i = 1; i < acl->n_rules; i++) {
+		if (acl->acl_rule_list[i] != NULL) {
+			status = rte_acl_add_rules(ctx, acl->acl_rule_list[i],
+				1);
+			if (status != 0) {
+				RTE_LOG(ERR, TABLE,
+				"%s: Cannot add rule to low level ACL table\n",
+					__func__);
+				rte_acl_free(ctx);
+				return -1;
+			}
+
+			n_rules++;
+		}
+	}
+
+	if (n_rules == 0) {
+		rte_acl_free(ctx);
+		*acl_ctx = NULL;
+		return 0;
+	}
+
+	/* Build low level ACl table */
+	status = rte_acl_build(ctx, &acl->cfg);
+	if (status != 0) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot build the low level ACL table\n",
+			__func__);
+		rte_acl_free(ctx);
+		return -1;
+	}
+
+	rte_acl_dump(ctx);
+
+	*acl_ctx = ctx;
+	return 0;
+}
+
+static int
+rte_table_acl_entry_add(
+	void *table,
+	void *key,
+	void *entry,
+	int *key_found,
+	void **entry_ptr)
+{
+	struct rte_table_acl *acl = (struct rte_table_acl *) table;
+	struct rte_table_acl_rule_add_params *rule =
+		(struct rte_table_acl_rule_add_params *) key;
+	struct rte_pipeline_acl_rule acl_rule;
+	struct rte_acl_rule *rule_location;
+	struct rte_acl_ctx *ctx;
+	uint32_t free_pos, free_pos_valid, i;
+	int status;
+
+	/* Check input parameters */
+	if (table == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (key == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: key parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (entry == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: entry parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (key_found == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: key_found parameter is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+	if (entry_ptr == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: entry_ptr parameter is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+	if (rule->priority > RTE_ACL_MAX_PRIORITY) {
+		RTE_LOG(ERR, TABLE, "%s: Priority is too high\n", __func__);
+		return -EINVAL;
+	}
+
+	/* Setup rule data structure */
+	memset(&acl_rule, 0, sizeof(acl_rule));
+	acl_rule.data.category_mask = 1;
+	acl_rule.data.priority = RTE_ACL_MAX_PRIORITY - rule->priority;
+	acl_rule.data.userdata = 0; /* To be set up later */
+	memcpy(&acl_rule.field[0],
+		&rule->field_value[0],
+		acl->cfg.num_fields * sizeof(struct rte_acl_field));
+
+	/* Look to see if the rule exists already in the table */
+	free_pos = 0;
+	free_pos_valid = 0;
+	for (i = 1; i < acl->n_rules; i++) {
+		if (acl->acl_rule_list[i] == NULL) {
+			if (free_pos_valid == 0) {
+				free_pos = i;
+				free_pos_valid = 1;
+			}
+
+			continue;
+		}
+
+		/* Compare the key fields */
+		status = memcmp(&acl->acl_rule_list[i]->field[0],
+			&rule->field_value[0],
+			acl->cfg.num_fields * sizeof(struct rte_acl_field));
+
+		/* Rule found: update data associated with the rule */
+		if (status == 0) {
+			*key_found = 1;
+			*entry_ptr = &acl->memory[i * acl->entry_size];
+			memcpy(*entry_ptr, entry, acl->entry_size);
+
+			return 0;
+		}
+	}
+
+	/* Return if max rules */
+	if (free_pos_valid == 0) {
+		RTE_LOG(ERR, TABLE, "%s: Max number of rules reached\n",
+			__func__);
+		return -ENOSPC;
+	}
+
+	/* Add the new rule to the rule set */
+	acl_rule.data.userdata = free_pos;
+	rule_location = (struct rte_acl_rule *)
+		&acl->acl_rule_memory[free_pos * acl->acl_params.rule_size];
+	memcpy(rule_location, &acl_rule, acl->acl_params.rule_size);
+	acl->acl_rule_list[free_pos] = rule_location;
+
+	/* Build low level ACL table */
+	acl->name_id ^= 1;
+	acl->acl_params.name = acl->name[acl->name_id];
+	status = rte_table_acl_build(acl, &ctx);
+	if (status != 0) {
+		/* Roll back changes */
+		acl->acl_rule_list[free_pos] = NULL;
+		acl->name_id ^= 1;
+
+		return -EINVAL;
+	}
+
+	/* Commit changes */
+	if (acl->ctx != NULL)
+		rte_acl_free(acl->ctx);
+	acl->ctx = ctx;
+	*key_found = 0;
+	*entry_ptr = &acl->memory[free_pos * acl->entry_size];
+	memcpy(*entry_ptr, entry, acl->entry_size);
+
+	return 0;
+}
+
+static int
+rte_table_acl_entry_delete(
+	void *table,
+	void *key,
+	int *key_found,
+	void *entry)
+{
+	struct rte_table_acl *acl = (struct rte_table_acl *) table;
+	struct rte_table_acl_rule_delete_params *rule =
+		(struct rte_table_acl_rule_delete_params *) key;
+	struct rte_acl_rule *deleted_rule = NULL;
+	struct rte_acl_ctx *ctx;
+	uint32_t pos, pos_valid, i;
+	int status;
+
+	/* Check input parameters */
+	if (table == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (key == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: key parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (key_found == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: key_found parameter is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	/* Look for the rule in the table */
+	pos = 0;
+	pos_valid = 0;
+	for (i = 1; i < acl->n_rules; i++) {
+		if (acl->acl_rule_list[i] != NULL) {
+			/* Compare the key fields */
+			status = memcmp(&acl->acl_rule_list[i]->field[0],
+				&rule->field_value[0], acl->cfg.num_fields *
+				sizeof(struct rte_acl_field));
+
+			/* Rule found: remove from table */
+			if (status == 0) {
+				pos = i;
+				pos_valid = 1;
+
+				deleted_rule = acl->acl_rule_list[i];
+				acl->acl_rule_list[i] = NULL;
+			}
+		}
+	}
+
+	/* Return if rule not found */
+	if (pos_valid == 0) {
+		*key_found = 0;
+		return 0;
+	}
+
+	/* Build low level ACL table */
+	acl->name_id ^= 1;
+	acl->acl_params.name = acl->name[acl->name_id];
+	status = rte_table_acl_build(acl, &ctx);
+	if (status != 0) {
+		/* Roll back changes */
+		acl->acl_rule_list[pos] = deleted_rule;
+		acl->name_id ^= 1;
+
+		return -EINVAL;
+	}
+
+	/* Commit changes */
+	if (acl->ctx != NULL)
+		rte_acl_free(acl->ctx);
+
+	acl->ctx = ctx;
+	*key_found = 1;
+	if (entry != NULL)
+		memcpy(entry, &acl->memory[pos * acl->entry_size],
+			acl->entry_size);
+
+	return 0;
+}
+
+static int
+rte_table_acl_entry_add_bulk(
+	void *table,
+	void **keys,
+	void **entries,
+	uint32_t n_keys,
+	int *key_found,
+	void **entries_ptr)
+{
+	struct rte_table_acl *acl = (struct rte_table_acl *) table;
+	struct rte_acl_ctx *ctx;
+	uint32_t rule_pos[n_keys];
+	uint32_t i;
+	int err = 0, build = 0;
+	int status;
+
+	/* Check input parameters */
+	if (table == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (keys == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: keys parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (entries == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: entries parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (n_keys == 0) {
+		RTE_LOG(ERR, TABLE, "%s: 0 rules to add\n", __func__);
+		return -EINVAL;
+	}
+	if (key_found == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: key_found parameter is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+	if (entries_ptr == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: entries_ptr parameter is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	/* Check input parameters in arrays */
+	for (i = 0; i < n_keys; i++) {
+		struct rte_table_acl_rule_add_params *rule;
+
+		if (keys[i] == NULL) {
+			RTE_LOG(ERR, TABLE, "%s: keys[%" PRIu32 "] parameter is NULL\n",
+					__func__, i);
+			return -EINVAL;
+		}
+
+		if (entries[i] == NULL) {
+			RTE_LOG(ERR, TABLE, "%s: entries[%" PRIu32 "] parameter is NULL\n",
+					__func__, i);
+			return -EINVAL;
+		}
+
+		if (entries_ptr[i] == NULL) {
+			RTE_LOG(ERR, TABLE, "%s: entries_ptr[%" PRIu32 "] parameter is NULL\n",
+					__func__, i);
+			return -EINVAL;
+		}
+
+		rule = (struct rte_table_acl_rule_add_params *) keys[i];
+		if (rule->priority > RTE_ACL_MAX_PRIORITY) {
+			RTE_LOG(ERR, TABLE, "%s: Priority is too high\n", __func__);
+			return -EINVAL;
+		}
+	}
+
+	memset(rule_pos, 0, n_keys * sizeof(uint32_t));
+	memset(key_found, 0, n_keys * sizeof(int));
+	for (i = 0; i < n_keys; i++) {
+		struct rte_table_acl_rule_add_params *rule =
+				(struct rte_table_acl_rule_add_params *) keys[i];
+		struct rte_pipeline_acl_rule acl_rule;
+		struct rte_acl_rule *rule_location;
+		uint32_t free_pos, free_pos_valid, j;
+
+		/* Setup rule data structure */
+		memset(&acl_rule, 0, sizeof(acl_rule));
+		acl_rule.data.category_mask = 1;
+		acl_rule.data.priority = RTE_ACL_MAX_PRIORITY - rule->priority;
+		acl_rule.data.userdata = 0; /* To be set up later */
+		memcpy(&acl_rule.field[0],
+			&rule->field_value[0],
+			acl->cfg.num_fields * sizeof(struct rte_acl_field));
+
+		/* Look to see if the rule exists already in the table */
+		free_pos = 0;
+		free_pos_valid = 0;
+		for (j = 1; j < acl->n_rules; j++) {
+			if (acl->acl_rule_list[j] == NULL) {
+				if (free_pos_valid == 0) {
+					free_pos = j;
+					free_pos_valid = 1;
+				}
+
+				continue;
+			}
+
+			/* Compare the key fields */
+			status = memcmp(&acl->acl_rule_list[j]->field[0],
+				&rule->field_value[0],
+				acl->cfg.num_fields * sizeof(struct rte_acl_field));
+
+			/* Rule found: update data associated with the rule */
+			if (status == 0) {
+				key_found[i] = 1;
+				entries_ptr[i] = &acl->memory[j * acl->entry_size];
+				memcpy(entries_ptr[i], entries[i], acl->entry_size);
+
+				break;
+			}
+		}
+
+		/* Key already in the table */
+		if (key_found[i] != 0)
+			continue;
+
+		/* Maximum number of rules reached */
+		if (free_pos_valid == 0) {
+			err = 1;
+			break;
+		}
+
+		/* Add the new rule to the rule set */
+		acl_rule.data.userdata = free_pos;
+		rule_location = (struct rte_acl_rule *)
+			&acl->acl_rule_memory[free_pos * acl->acl_params.rule_size];
+		memcpy(rule_location, &acl_rule, acl->acl_params.rule_size);
+		acl->acl_rule_list[free_pos] = rule_location;
+		rule_pos[i] = free_pos;
+		build = 1;
+	}
+
+	if (err != 0) {
+		for (i = 0; i < n_keys; i++) {
+			if (rule_pos[i] == 0)
+				continue;
+
+			acl->acl_rule_list[rule_pos[i]] = NULL;
+		}
+
+		return -ENOSPC;
+	}
+
+	if (build == 0)
+		return 0;
+
+	/* Build low level ACL table */
+	acl->name_id ^= 1;
+	acl->acl_params.name = acl->name[acl->name_id];
+	status = rte_table_acl_build(acl, &ctx);
+	if (status != 0) {
+		/* Roll back changes */
+		for (i = 0; i < n_keys; i++) {
+			if (rule_pos[i] == 0)
+				continue;
+
+			acl->acl_rule_list[rule_pos[i]] = NULL;
+		}
+		acl->name_id ^= 1;
+
+		return -EINVAL;
+	}
+
+	/* Commit changes */
+	if (acl->ctx != NULL)
+		rte_acl_free(acl->ctx);
+	acl->ctx = ctx;
+
+	for (i = 0; i < n_keys; i++) {
+		if (rule_pos[i] == 0)
+			continue;
+
+		key_found[i] = 0;
+		entries_ptr[i] = &acl->memory[rule_pos[i] * acl->entry_size];
+		memcpy(entries_ptr[i], entries[i], acl->entry_size);
+	}
+
+	return 0;
+}
+
+static int
+rte_table_acl_entry_delete_bulk(
+	void *table,
+	void **keys,
+	uint32_t n_keys,
+	int *key_found,
+	void **entries)
+{
+	struct rte_table_acl *acl = (struct rte_table_acl *) table;
+	struct rte_acl_rule *deleted_rules[n_keys];
+	uint32_t rule_pos[n_keys];
+	struct rte_acl_ctx *ctx;
+	uint32_t i;
+	int status;
+	int build = 0;
+
+	/* Check input parameters */
+	if (table == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (keys == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: key parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (n_keys == 0) {
+		RTE_LOG(ERR, TABLE, "%s: 0 rules to delete\n", __func__);
+		return -EINVAL;
+	}
+	if (key_found == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: key_found parameter is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < n_keys; i++) {
+		if (keys[i] == NULL) {
+			RTE_LOG(ERR, TABLE, "%s: keys[%" PRIu32 "] parameter is NULL\n",
+					__func__, i);
+			return -EINVAL;
+		}
+	}
+
+	memset(deleted_rules, 0, n_keys * sizeof(struct rte_acl_rule *));
+	memset(rule_pos, 0, n_keys * sizeof(uint32_t));
+	for (i = 0; i < n_keys; i++) {
+		struct rte_table_acl_rule_delete_params *rule =
+			(struct rte_table_acl_rule_delete_params *) keys[i];
+		uint32_t pos_valid, j;
+
+		/* Look for the rule in the table */
+		pos_valid = 0;
+		for (j = 1; j < acl->n_rules; j++) {
+			if (acl->acl_rule_list[j] == NULL)
+				continue;
+
+			/* Compare the key fields */
+			status = memcmp(&acl->acl_rule_list[j]->field[0],
+					&rule->field_value[0],
+					acl->cfg.num_fields * sizeof(struct rte_acl_field));
+
+			/* Rule found: remove from table */
+			if (status == 0) {
+				pos_valid = 1;
+
+				deleted_rules[i] = acl->acl_rule_list[j];
+				acl->acl_rule_list[j] = NULL;
+				rule_pos[i] = j;
+
+				build = 1;
+			}
+		}
+
+		if (pos_valid == 0) {
+			key_found[i] = 0;
+			continue;
+		}
+	}
+
+	/* Return if no changes to acl table */
+	if (build == 0) {
+		return 0;
+	}
+
+	/* Build low level ACL table */
+	acl->name_id ^= 1;
+	acl->acl_params.name = acl->name[acl->name_id];
+	status = rte_table_acl_build(acl, &ctx);
+	if (status != 0) {
+		/* Roll back changes */
+		for (i = 0; i < n_keys; i++) {
+			if (rule_pos[i] == 0)
+				continue;
+
+			acl->acl_rule_list[rule_pos[i]] = deleted_rules[i];
+		}
+
+		acl->name_id ^= 1;
+
+		return -EINVAL;
+	}
+
+	/* Commit changes */
+	if (acl->ctx != NULL)
+		rte_acl_free(acl->ctx);
+
+	acl->ctx = ctx;
+	for (i = 0; i < n_keys; i++) {
+		if (rule_pos[i] == 0)
+			continue;
+
+		key_found[i] = 1;
+		if (entries != NULL && entries[i] != NULL)
+			memcpy(entries[i], &acl->memory[rule_pos[i] * acl->entry_size],
+					acl->entry_size);
+	}
+
+	return 0;
+}
+
+static int
+rte_table_acl_lookup(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_acl *acl = (struct rte_table_acl *) table;
+	const uint8_t *pkts_data[RTE_PORT_IN_BURST_SIZE_MAX];
+	uint32_t results[RTE_PORT_IN_BURST_SIZE_MAX];
+	uint64_t pkts_out_mask;
+	uint32_t n_pkts, i, j;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_ACL_STATS_PKTS_IN_ADD(acl, n_pkts_in);
+
+	/* Input conversion */
+	for (i = 0, j = 0; i < (uint32_t)(RTE_PORT_IN_BURST_SIZE_MAX -
+		__builtin_clzll(pkts_mask)); i++) {
+		uint64_t pkt_mask = 1LLU << i;
+
+		if (pkt_mask & pkts_mask) {
+			pkts_data[j] = rte_pktmbuf_mtod(pkts[i], uint8_t *);
+			j++;
+		}
+	}
+	n_pkts = j;
+
+	/* Low-level ACL table lookup */
+	if (acl->ctx != NULL)
+		rte_acl_classify(acl->ctx, pkts_data, results, n_pkts, 1);
+	else
+		n_pkts = 0;
+
+	/* Output conversion */
+	pkts_out_mask = 0;
+	for (i = 0; i < n_pkts; i++) {
+		uint32_t action_table_pos = results[i];
+		uint32_t pkt_pos = __builtin_ctzll(pkts_mask);
+		uint64_t pkt_mask = 1LLU << pkt_pos;
+
+		pkts_mask &= ~pkt_mask;
+
+		if (action_table_pos != RTE_ACL_INVALID_USERDATA) {
+			pkts_out_mask |= pkt_mask;
+			entries[pkt_pos] = (void *)
+				&acl->memory[action_table_pos *
+				acl->entry_size];
+			rte_prefetch0(entries[pkt_pos]);
+		}
+	}
+
+	*lookup_hit_mask = pkts_out_mask;
+	RTE_TABLE_ACL_STATS_PKTS_LOOKUP_MISS(acl, n_pkts_in - __builtin_popcountll(pkts_out_mask));
+
+	return 0;
+}
+
+static int
+rte_table_acl_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+	struct rte_table_acl *acl = (struct rte_table_acl *) table;
+
+	if (stats != NULL)
+		memcpy(stats, &acl->stats, sizeof(acl->stats));
+
+	if (clear)
+		memset(&acl->stats, 0, sizeof(acl->stats));
+
+	return 0;
+}
+
+struct rte_table_ops rte_table_acl_ops = {
+	.f_create = rte_table_acl_create,
+	.f_free = rte_table_acl_free,
+	.f_add = rte_table_acl_entry_add,
+	.f_delete = rte_table_acl_entry_delete,
+	.f_add_bulk = rte_table_acl_entry_add_bulk,
+	.f_delete_bulk = rte_table_acl_entry_delete_bulk,
+	.f_lookup = rte_table_acl_lookup,
+	.f_stats = rte_table_acl_stats_read,
+};
diff --git a/lib/librte_table/rte_table_acl.h b/lib/librte_table/rte_table_acl.h
new file mode 100644
index 00000000..a9cc0328
--- /dev/null
+++ b/lib/librte_table/rte_table_acl.h
@@ -0,0 +1,95 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __INCLUDE_RTE_TABLE_ACL_H__
+#define __INCLUDE_RTE_TABLE_ACL_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @file
+ * RTE Table ACL
+ *
+ * This table uses the Access Control List (ACL) algorithm to uniquely
+ * associate data to lookup keys.
+ *
+ * Use-cases: Firewall rule database, etc.
+ *
+ ***/
+
+#include <stdint.h>
+
+#include "rte_acl.h"
+
+#include "rte_table.h"
+
+/** ACL table parameters */
+struct rte_table_acl_params {
+	/** Name */
+	const char *name;
+
+	/** Maximum number of ACL rules in the table */
+	uint32_t n_rules;
+
+	/** Number of fields in the ACL rule specification */
+	uint32_t n_rule_fields;
+
+	/** Format specification of the fields of the ACL rule */
+	struct rte_acl_field_def field_format[RTE_ACL_MAX_FIELDS];
+};
+
+/** ACL rule specification for entry add operation */
+struct rte_table_acl_rule_add_params {
+	/** ACL rule priority, with 0 as the highest priority */
+	int32_t  priority;
+
+	/** Values for the fields of the ACL rule to be added to the table */
+	struct rte_acl_field field_value[RTE_ACL_MAX_FIELDS];
+};
+
+/** ACL rule specification for entry delete operation */
+struct rte_table_acl_rule_delete_params {
+	/** Values for the fields of the ACL rule to be deleted from table */
+	struct rte_acl_field field_value[RTE_ACL_MAX_FIELDS];
+};
+
+/** ACL table operations */
+extern struct rte_table_ops rte_table_acl_ops;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/lib/librte_table/rte_table_array.c b/lib/librte_table/rte_table_array.c
new file mode 100644
index 00000000..3bb68d11
--- /dev/null
+++ b/lib/librte_table/rte_table_array.c
@@ -0,0 +1,237 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <string.h>
+#include <stdio.h>
+
+#include <rte_common.h>
+#include <rte_mbuf.h>
+#include <rte_memory.h>
+#include <rte_malloc.h>
+#include <rte_log.h>
+
+#include "rte_table_array.h"
+
+#ifdef RTE_TABLE_STATS_COLLECT
+
+#define RTE_TABLE_ARRAY_STATS_PKTS_IN_ADD(table, val) \
+	table->stats.n_pkts_in += val
+#define RTE_TABLE_ARRAY_STATS_PKTS_LOOKUP_MISS(table, val) \
+	table->stats.n_pkts_lookup_miss += val
+
+#else
+
+#define RTE_TABLE_ARRAY_STATS_PKTS_IN_ADD(table, val)
+#define RTE_TABLE_ARRAY_STATS_PKTS_LOOKUP_MISS(table, val)
+
+#endif
+
+struct rte_table_array {
+	struct rte_table_stats stats;
+
+	/* Input parameters */
+	uint32_t entry_size;
+	uint32_t n_entries;
+	uint32_t offset;
+
+	/* Internal fields */
+	uint32_t entry_pos_mask;
+
+	/* Internal table */
+	uint8_t array[0] __rte_cache_aligned;
+} __rte_cache_aligned;
+
+static void *
+rte_table_array_create(void *params, int socket_id, uint32_t entry_size)
+{
+	struct rte_table_array_params *p =
+		(struct rte_table_array_params *) params;
+	struct rte_table_array *t;
+	uint32_t total_cl_size, total_size;
+
+	/* Check input parameters */
+	if ((p == NULL) ||
+	    (p->n_entries == 0) ||
+		(!rte_is_power_of_2(p->n_entries)))
+		return NULL;
+
+	/* Memory allocation */
+	total_cl_size = (sizeof(struct rte_table_array) +
+			RTE_CACHE_LINE_SIZE) / RTE_CACHE_LINE_SIZE;
+	total_cl_size += (p->n_entries * entry_size +
+			RTE_CACHE_LINE_SIZE) / RTE_CACHE_LINE_SIZE;
+	total_size = total_cl_size * RTE_CACHE_LINE_SIZE;
+	t = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE, socket_id);
+	if (t == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot allocate %u bytes for array table\n",
+			__func__, total_size);
+		return NULL;
+	}
+
+	/* Memory initialization */
+	t->entry_size = entry_size;
+	t->n_entries = p->n_entries;
+	t->offset = p->offset;
+	t->entry_pos_mask = t->n_entries - 1;
+
+	return t;
+}
+
+static int
+rte_table_array_free(void *table)
+{
+	struct rte_table_array *t = (struct rte_table_array *) table;
+
+	/* Check input parameters */
+	if (t == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	/* Free previously allocated resources */
+	rte_free(t);
+
+	return 0;
+}
+
+static int
+rte_table_array_entry_add(
+	void *table,
+	void *key,
+	void *entry,
+	int *key_found,
+	void **entry_ptr)
+{
+	struct rte_table_array *t = (struct rte_table_array *) table;
+	struct rte_table_array_key *k = (struct rte_table_array_key *) key;
+	uint8_t *table_entry;
+
+	/* Check input parameters */
+	if (table == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (key == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: key parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (entry == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: entry parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (key_found == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: key_found parameter is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+	if (entry_ptr == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: entry_ptr parameter is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	table_entry = &t->array[k->pos * t->entry_size];
+	memcpy(table_entry, entry, t->entry_size);
+	*key_found = 1;
+	*entry_ptr = (void *) table_entry;
+
+	return 0;
+}
+
+static int
+rte_table_array_lookup(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_array *t = (struct rte_table_array *) table;
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_ARRAY_STATS_PKTS_IN_ADD(t, n_pkts_in);
+	*lookup_hit_mask = pkts_mask;
+
+	if ((pkts_mask & (pkts_mask + 1)) == 0) {
+		uint64_t n_pkts = __builtin_popcountll(pkts_mask);
+		uint32_t i;
+
+		for (i = 0; i < n_pkts; i++) {
+			struct rte_mbuf *pkt = pkts[i];
+			uint32_t entry_pos = RTE_MBUF_METADATA_UINT32(pkt,
+				t->offset) & t->entry_pos_mask;
+
+			entries[i] = (void *) &t->array[entry_pos *
+				t->entry_size];
+		}
+	} else {
+		for ( ; pkts_mask; ) {
+			uint32_t pkt_index = __builtin_ctzll(pkts_mask);
+			uint64_t pkt_mask = 1LLU << pkt_index;
+			struct rte_mbuf *pkt = pkts[pkt_index];
+			uint32_t entry_pos = RTE_MBUF_METADATA_UINT32(pkt,
+				t->offset) & t->entry_pos_mask;
+
+			entries[pkt_index] = (void *) &t->array[entry_pos *
+				t->entry_size];
+			pkts_mask &= ~pkt_mask;
+		}
+	}
+
+	return 0;
+}
+
+static int
+rte_table_array_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+	struct rte_table_array *array = (struct rte_table_array *) table;
+
+	if (stats != NULL)
+		memcpy(stats, &array->stats, sizeof(array->stats));
+
+	if (clear)
+		memset(&array->stats, 0, sizeof(array->stats));
+
+	return 0;
+}
+
+struct rte_table_ops rte_table_array_ops = {
+	.f_create = rte_table_array_create,
+	.f_free = rte_table_array_free,
+	.f_add = rte_table_array_entry_add,
+	.f_delete = NULL,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_array_lookup,
+	.f_stats = rte_table_array_stats_read,
+};
diff --git a/lib/librte_table/rte_table_array.h b/lib/librte_table/rte_table_array.h
new file mode 100644
index 00000000..9521119e
--- /dev/null
+++ b/lib/librte_table/rte_table_array.h
@@ -0,0 +1,76 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __INCLUDE_RTE_TABLE_ARRAY_H__
+#define __INCLUDE_RTE_TABLE_ARRAY_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @file
+ * RTE Table Array
+ *
+ * Simple array indexing. Lookup key is the array entry index.
+ *
+ ***/
+
+#include <stdint.h>
+
+#include "rte_table.h"
+
+/** Array table parameters */
+struct rte_table_array_params {
+	/** Number of array entries. Has to be a power of two. */
+	uint32_t n_entries;
+
+	/** Byte offset within input packet meta-data where lookup key (i.e. the
+	    array entry index) is located. */
+	uint32_t offset;
+};
+
+/** Array table key format */
+struct rte_table_array_key {
+	/** Array entry index */
+	uint32_t pos;
+};
+
+/** Array table operations */
+extern struct rte_table_ops rte_table_array_ops;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/lib/librte_table/rte_table_hash.h b/lib/librte_table/rte_table_hash.h
new file mode 100644
index 00000000..9d17516a
--- /dev/null
+++ b/lib/librte_table/rte_table_hash.h
@@ -0,0 +1,370 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __INCLUDE_RTE_TABLE_HASH_H__
+#define __INCLUDE_RTE_TABLE_HASH_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @file
+ * RTE Table Hash
+ *
+ * These tables use the exact match criterion to uniquely associate data to
+ * lookup keys.
+ *
+ * Use-cases: Flow classification table, Address Resolution Protocol (ARP) table
+ *
+ * Hash table types:
+ * 1. Entry add strategy on bucket full:
+ *     a. Least Recently Used (LRU): One of the existing keys in the bucket is
+ *        deleted and the new key is added in its place. The number of keys in
+ *        each bucket never grows bigger than 4. The logic to pick the key to
+ *        be dropped from the bucket is LRU. The hash table lookup operation
+ *        maintains the order in which the keys in the same bucket are hit, so
+ *        every time a key is hit, it becomes the new Most Recently Used (MRU)
+ *        key, i.e. the most unlikely candidate for drop. When a key is added
+ *        to the bucket, it also becomes the new MRU key. When a key needs to
+ *        be picked and dropped, the most likely candidate for drop, i.e. the
+ *        current LRU key, is always picked. The LRU logic requires maintaining
+ *        specific data structures per each bucket.
+ *     b. Extendible bucket (ext): The bucket is extended with space for 4 more
+ *        keys. This is done by allocating additional memory at table init time,
+ *        which is used to create a pool of free keys (the size of this pool is
+ *        configurable and always a multiple of 4). On key add operation, the
+ *        allocation of a group of 4 keys only happens successfully within the
+ *        limit of free keys, otherwise the key add operation fails. On key
+ *        delete operation, a group of 4 keys is freed back to the pool of free
+ *        keys when the key to be deleted is the only key that was used within
+ *        its group of 4 keys at that time. On key lookup operation, if the
+ *        current bucket is in extended state and a match is not found in the
+ *        first group of 4 keys, the search continues beyond the first group of
+ *        4 keys, potentially until all keys in this bucket are examined. The
+ *        extendible bucket logic requires maintaining specific data structures
+ *        per table and per each bucket.
+ * 2. Key signature computation:
+ *     a. Pre-computed key signature: The key lookup operation is split between
+ *        two CPU cores. The first CPU core (typically the CPU core performing
+ *        packet RX) extracts the key from the input packet, computes the key
+ *        signature and saves both the key and the key signature in the packet
+ *        buffer as packet meta-data. The second CPU core reads both the key and
+ *        the key signature from the packet meta-data and performs the bucket
+ *        search step of the key lookup operation.
+ *     b. Key signature computed on lookup (do-sig): The same CPU core reads
+ *        the key from the packet meta-data, uses it to compute the key
+ *        signature and also performs the bucket search step of the key lookup
+ *        operation.
+ * 3. Key size:
+ *     a. Configurable key size
+ *     b. Single key size (8-byte, 16-byte or 32-byte key size)
+ *
+ ***/
+#include <stdint.h>
+
+#include "rte_table.h"
+
+/** Hash function */
+typedef uint64_t (*rte_table_hash_op_hash)(
+	void *key,
+	uint32_t key_size,
+	uint64_t seed);
+
+/**
+ * Hash tables with configurable key size
+ *
+ */
+/** Extendible bucket hash table parameters */
+struct rte_table_hash_ext_params {
+	/** Key size (number of bytes) */
+	uint32_t key_size;
+
+	/** Maximum number of keys */
+	uint32_t n_keys;
+
+	/** Number of hash table buckets. Each bucket stores up to 4 keys. */
+	uint32_t n_buckets;
+
+	/** Number of hash table bucket extensions. Each bucket extension has
+	space for 4 keys and each bucket can have 0, 1 or more extensions. */
+	uint32_t n_buckets_ext;
+
+	/** Hash function */
+	rte_table_hash_op_hash f_hash;
+
+	/** Seed value for the hash function */
+	uint64_t seed;
+
+	/** Byte offset within packet meta-data where the 4-byte key signature
+	is located. Valid for pre-computed key signature tables, ignored for
+	do-sig tables. */
+	uint32_t signature_offset;
+
+	/** Byte offset within packet meta-data where the key is located */
+	uint32_t key_offset;
+};
+
+/** Extendible bucket hash table operations for pre-computed key signature */
+extern struct rte_table_ops rte_table_hash_ext_ops;
+
+/** Extendible bucket hash table operations for key signature computed on
+	lookup ("do-sig") */
+extern struct rte_table_ops rte_table_hash_ext_dosig_ops;
+
+/** LRU hash table parameters */
+struct rte_table_hash_lru_params {
+	/** Key size (number of bytes) */
+	uint32_t key_size;
+
+	/** Maximum number of keys */
+	uint32_t n_keys;
+
+	/** Number of hash table buckets. Each bucket stores up to 4 keys. */
+	uint32_t n_buckets;
+
+	/** Hash function */
+	rte_table_hash_op_hash f_hash;
+
+	/** Seed value for the hash function */
+	uint64_t seed;
+
+	/** Byte offset within packet meta-data where the 4-byte key signature
+	is located. Valid for pre-computed key signature tables, ignored for
+	do-sig tables. */
+	uint32_t signature_offset;
+
+	/** Byte offset within packet meta-data where the key is located */
+	uint32_t key_offset;
+};
+
+/** LRU hash table operations for pre-computed key signature */
+extern struct rte_table_ops rte_table_hash_lru_ops;
+
+/** LRU hash table operations for key signature computed on lookup ("do-sig") */
+extern struct rte_table_ops rte_table_hash_lru_dosig_ops;
+
+/**
+ * 8-byte key hash tables
+ *
+ */
+/** LRU hash table parameters */
+struct rte_table_hash_key8_lru_params {
+	/** Maximum number of entries (and keys) in the table */
+	uint32_t n_entries;
+
+	/** Hash function */
+	rte_table_hash_op_hash f_hash;
+
+	/** Seed for the hash function */
+	uint64_t seed;
+
+	/** Byte offset within packet meta-data where the 4-byte key signature
+	is located. Valid for pre-computed key signature tables, ignored for
+	do-sig tables. */
+	uint32_t signature_offset;
+
+	/** Byte offset within packet meta-data where the key is located */
+	uint32_t key_offset;
+
+	/** Bit-mask to be AND-ed to the key on lookup */
+	uint8_t *key_mask;
+};
+
+/** LRU hash table operations for pre-computed key signature */
+extern struct rte_table_ops rte_table_hash_key8_lru_ops;
+
+/** LRU hash table operations for key signature computed on lookup ("do-sig") */
+extern struct rte_table_ops rte_table_hash_key8_lru_dosig_ops;
+
+/** Extendible bucket hash table parameters */
+struct rte_table_hash_key8_ext_params {
+	/** Maximum number of entries (and keys) in the table */
+	uint32_t n_entries;
+
+	/** Number of entries (and keys) for hash table bucket extensions. Each
+		bucket is extended in increments of 4 keys. */
+	uint32_t n_entries_ext;
+
+	/** Hash function */
+	rte_table_hash_op_hash f_hash;
+
+	/** Seed for the hash function */
+	uint64_t seed;
+
+	/** Byte offset within packet meta-data where the 4-byte key signature
+	is located. Valid for pre-computed key signature tables, ignored for
+	do-sig tables. */
+	uint32_t signature_offset;
+
+	/** Byte offset within packet meta-data where the key is located */
+	uint32_t key_offset;
+
+	/** Bit-mask to be AND-ed to the key on lookup */
+	uint8_t *key_mask;
+};
+
+/** Extendible bucket hash table operations for pre-computed key signature */
+extern struct rte_table_ops rte_table_hash_key8_ext_ops;
+
+/** Extendible bucket hash table operations for key signature computed on
+    lookup ("do-sig") */
+extern struct rte_table_ops rte_table_hash_key8_ext_dosig_ops;
+
+/**
+ * 16-byte key hash tables
+ *
+ */
+/** LRU hash table parameters */
+struct rte_table_hash_key16_lru_params {
+	/** Maximum number of entries (and keys) in the table */
+	uint32_t n_entries;
+
+	/** Hash function */
+	rte_table_hash_op_hash f_hash;
+
+	/** Seed for the hash function */
+	uint64_t seed;
+
+	/** Byte offset within packet meta-data where the 4-byte key signature
+	is located. Valid for pre-computed key signature tables, ignored for
+	do-sig tables. */
+	uint32_t signature_offset;
+
+	/** Byte offset within packet meta-data where the key is located */
+	uint32_t key_offset;
+
+	/** Bit-mask to be AND-ed to the key on lookup */
+	uint8_t *key_mask;
+};
+
+/** LRU hash table operations for pre-computed key signature */
+extern struct rte_table_ops rte_table_hash_key16_lru_ops;
+
+/** LRU hash table operations for key signature computed on lookup
+    ("do-sig") */
+extern struct rte_table_ops rte_table_hash_key16_lru_dosig_ops;
+
+/** Extendible bucket hash table parameters */
+struct rte_table_hash_key16_ext_params {
+	/** Maximum number of entries (and keys) in the table */
+	uint32_t n_entries;
+
+	/** Number of entries (and keys) for hash table bucket extensions. Each
+	bucket is extended in increments of 4 keys. */
+	uint32_t n_entries_ext;
+
+	/** Hash function */
+	rte_table_hash_op_hash f_hash;
+
+	/** Seed for the hash function */
+	uint64_t seed;
+
+	/** Byte offset within packet meta-data where the 4-byte key signature
+	is located. Valid for pre-computed key signature tables, ignored for
+	do-sig tables. */
+	uint32_t signature_offset;
+
+	/** Byte offset within packet meta-data where the key is located */
+	uint32_t key_offset;
+
+	/** Bit-mask to be AND-ed to the key on lookup */
+	uint8_t *key_mask;
+};
+
+/** Extendible bucket operations for pre-computed key signature */
+extern struct rte_table_ops rte_table_hash_key16_ext_ops;
+
+/** Extendible bucket hash table operations for key signature computed on
+    lookup ("do-sig") */
+extern struct rte_table_ops rte_table_hash_key16_ext_dosig_ops;
+
+/**
+ * 32-byte key hash tables
+ *
+ */
+/** LRU hash table parameters */
+struct rte_table_hash_key32_lru_params {
+	/** Maximum number of entries (and keys) in the table */
+	uint32_t n_entries;
+
+	/** Hash function */
+	rte_table_hash_op_hash f_hash;
+
+	/** Seed for the hash function */
+	uint64_t seed;
+
+	/** Byte offset within packet meta-data where the 4-byte key signature
+	is located. Valid for pre-computed key signature tables, ignored for
+	do-sig tables. */
+	uint32_t signature_offset;
+
+	/** Byte offset within packet meta-data where the key is located */
+	uint32_t key_offset;
+};
+
+/** LRU hash table operations for pre-computed key signature */
+extern struct rte_table_ops rte_table_hash_key32_lru_ops;
+
+/** Extendible bucket hash table parameters */
+struct rte_table_hash_key32_ext_params {
+	/** Maximum number of entries (and keys) in the table */
+	uint32_t n_entries;
+
+	/** Number of entries (and keys) for hash table bucket extensions. Each
+		bucket is extended in increments of 4 keys. */
+	uint32_t n_entries_ext;
+
+	/** Hash function */
+	rte_table_hash_op_hash f_hash;
+
+	/** Seed for the hash function */
+	uint64_t seed;
+
+	/** Byte offset within packet meta-data where the 4-byte key signature
+	is located. Valid for pre-computed key signature tables, ignored for
+	do-sig tables. */
+	uint32_t signature_offset;
+
+	/** Byte offset within packet meta-data where the key is located */
+	uint32_t key_offset;
+};
+
+/** Extendible bucket hash table operations */
+extern struct rte_table_ops rte_table_hash_key32_ext_ops;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/lib/librte_table/rte_table_hash_ext.c b/lib/librte_table/rte_table_hash_ext.c
new file mode 100644
index 00000000..e283a3d1
--- /dev/null
+++ b/lib/librte_table/rte_table_hash_ext.c
@@ -0,0 +1,1159 @@
+/*-
+ *	 BSD LICENSE
+ *
+ *	 Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *	 All rights reserved.
+ *
+ *	 Redistribution and use in source and binary forms, with or without
+ *	 modification, are permitted provided that the following conditions
+ *	 are met:
+ *
+ *	* Redistributions of source code must retain the above copyright
+ *		 notice, this list of conditions and the following disclaimer.
+ *	* Redistributions in binary form must reproduce the above copyright
+ *		 notice, this list of conditions and the following disclaimer in
+ *		 the documentation and/or other materials provided with the
+ *		 distribution.
+ *	* Neither the name of Intel Corporation nor the names of its
+ *		 contributors may be used to endorse or promote products derived
+ *		 from this software without specific prior written permission.
+ *
+ *	 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *	 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *	 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *	 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *	 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *	 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *	 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *	 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *	 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *	 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *	 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <string.h>
+#include <stdio.h>
+
+#include <rte_common.h>
+#include <rte_mbuf.h>
+#include <rte_memory.h>
+#include <rte_malloc.h>
+#include <rte_log.h>
+
+#include "rte_table_hash.h"
+
+#define KEYS_PER_BUCKET	4
+
+struct bucket {
+	union {
+		uintptr_t next;
+		uint64_t lru_list;
+	};
+	uint16_t sig[KEYS_PER_BUCKET];
+	uint32_t key_pos[KEYS_PER_BUCKET];
+};
+
+#define BUCKET_NEXT(bucket)						\
+	((void *) ((bucket)->next & (~1LU)))
+
+#define BUCKET_NEXT_VALID(bucket)					\
+	((bucket)->next & 1LU)
+
+#define BUCKET_NEXT_SET(bucket, bucket_next)				\
+do									\
+	(bucket)->next = (((uintptr_t) ((void *) (bucket_next))) | 1LU);\
+while (0)
+
+#define BUCKET_NEXT_SET_NULL(bucket)					\
+do									\
+	(bucket)->next = 0;						\
+while (0)
+
+#define BUCKET_NEXT_COPY(bucket, bucket2)				\
+do									\
+	(bucket)->next = (bucket2)->next;				\
+while (0)
+
+#ifdef RTE_TABLE_STATS_COLLECT
+
+#define RTE_TABLE_HASH_EXT_STATS_PKTS_IN_ADD(table, val) \
+	table->stats.n_pkts_in += val
+#define RTE_TABLE_HASH_EXT_STATS_PKTS_LOOKUP_MISS(table, val) \
+	table->stats.n_pkts_lookup_miss += val
+
+#else
+
+#define RTE_TABLE_HASH_EXT_STATS_PKTS_IN_ADD(table, val)
+#define RTE_TABLE_HASH_EXT_STATS_PKTS_LOOKUP_MISS(table, val)
+
+#endif
+
+struct grinder {
+	struct bucket *bkt;
+	uint64_t sig;
+	uint64_t match;
+	uint32_t key_index;
+};
+
+struct rte_table_hash {
+	struct rte_table_stats stats;
+
+	/* Input parameters */
+	uint32_t key_size;
+	uint32_t entry_size;
+	uint32_t n_keys;
+	uint32_t n_buckets;
+	uint32_t n_buckets_ext;
+	rte_table_hash_op_hash f_hash;
+	uint64_t seed;
+	uint32_t signature_offset;
+	uint32_t key_offset;
+
+	/* Internal */
+	uint64_t bucket_mask;
+	uint32_t key_size_shl;
+	uint32_t data_size_shl;
+	uint32_t key_stack_tos;
+	uint32_t bkt_ext_stack_tos;
+
+	/* Grinder */
+	struct grinder grinders[RTE_PORT_IN_BURST_SIZE_MAX];
+
+	/* Tables */
+	struct bucket *buckets;
+	struct bucket *buckets_ext;
+	uint8_t *key_mem;
+	uint8_t *data_mem;
+	uint32_t *key_stack;
+	uint32_t *bkt_ext_stack;
+
+	/* Table memory */
+	uint8_t memory[0] __rte_cache_aligned;
+};
+
+static int
+check_params_create(struct rte_table_hash_ext_params *params)
+{
+	uint32_t n_buckets_min;
+
+	/* key_size */
+	if ((params->key_size == 0) ||
+		(!rte_is_power_of_2(params->key_size))) {
+		RTE_LOG(ERR, TABLE, "%s: key_size invalid value\n", __func__);
+		return -EINVAL;
+	}
+
+	/* n_keys */
+	if ((params->n_keys == 0) ||
+		(!rte_is_power_of_2(params->n_keys))) {
+		RTE_LOG(ERR, TABLE, "%s: n_keys invalid value\n", __func__);
+		return -EINVAL;
+	}
+
+	/* n_buckets */
+	n_buckets_min = (params->n_keys + KEYS_PER_BUCKET - 1) / params->n_keys;
+	if ((params->n_buckets == 0) ||
+		(!rte_is_power_of_2(params->n_keys)) ||
+		(params->n_buckets < n_buckets_min)) {
+		RTE_LOG(ERR, TABLE, "%s: n_buckets invalid value\n", __func__);
+		return -EINVAL;
+	}
+
+	/* f_hash */
+	if (params->f_hash == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: f_hash invalid value\n", __func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void *
+rte_table_hash_ext_create(void *params, int socket_id, uint32_t entry_size)
+{
+	struct rte_table_hash_ext_params *p =
+		(struct rte_table_hash_ext_params *) params;
+	struct rte_table_hash *t;
+	uint32_t total_size, table_meta_sz;
+	uint32_t bucket_sz, bucket_ext_sz, key_sz;
+	uint32_t key_stack_sz, bkt_ext_stack_sz, data_sz;
+	uint32_t bucket_offset, bucket_ext_offset, key_offset;
+	uint32_t key_stack_offset, bkt_ext_stack_offset, data_offset;
+	uint32_t i;
+
+	/* Check input parameters */
+	if ((check_params_create(p) != 0) ||
+		(!rte_is_power_of_2(entry_size)) ||
+		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
+		(sizeof(struct bucket) != (RTE_CACHE_LINE_SIZE / 2)))
+		return NULL;
+
+	/* Memory allocation */
+	table_meta_sz = RTE_CACHE_LINE_ROUNDUP(sizeof(struct rte_table_hash));
+	bucket_sz = RTE_CACHE_LINE_ROUNDUP(p->n_buckets * sizeof(struct bucket));
+	bucket_ext_sz =
+		RTE_CACHE_LINE_ROUNDUP(p->n_buckets_ext * sizeof(struct bucket));
+	key_sz = RTE_CACHE_LINE_ROUNDUP(p->n_keys * p->key_size);
+	key_stack_sz = RTE_CACHE_LINE_ROUNDUP(p->n_keys * sizeof(uint32_t));
+	bkt_ext_stack_sz =
+		RTE_CACHE_LINE_ROUNDUP(p->n_buckets_ext * sizeof(uint32_t));
+	data_sz = RTE_CACHE_LINE_ROUNDUP(p->n_keys * entry_size);
+	total_size = table_meta_sz + bucket_sz + bucket_ext_sz + key_sz +
+		key_stack_sz + bkt_ext_stack_sz + data_sz;
+
+	t = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE, socket_id);
+	if (t == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot allocate %u bytes for hash table\n",
+			__func__, total_size);
+		return NULL;
+	}
+	RTE_LOG(INFO, TABLE, "%s (%u-byte key): Hash table memory footprint is "
+		"%u bytes\n", __func__, p->key_size, total_size);
+
+	/* Memory initialization */
+	t->key_size = p->key_size;
+	t->entry_size = entry_size;
+	t->n_keys = p->n_keys;
+	t->n_buckets = p->n_buckets;
+	t->n_buckets_ext = p->n_buckets_ext;
+	t->f_hash = p->f_hash;
+	t->seed = p->seed;
+	t->signature_offset = p->signature_offset;
+	t->key_offset = p->key_offset;
+
+	/* Internal */
+	t->bucket_mask = t->n_buckets - 1;
+	t->key_size_shl = __builtin_ctzl(p->key_size);
+	t->data_size_shl = __builtin_ctzl(entry_size);
+
+	/* Tables */
+	bucket_offset = 0;
+	bucket_ext_offset = bucket_offset + bucket_sz;
+	key_offset = bucket_ext_offset + bucket_ext_sz;
+	key_stack_offset = key_offset + key_sz;
+	bkt_ext_stack_offset = key_stack_offset + key_stack_sz;
+	data_offset = bkt_ext_stack_offset + bkt_ext_stack_sz;
+
+	t->buckets = (struct bucket *) &t->memory[bucket_offset];
+	t->buckets_ext = (struct bucket *) &t->memory[bucket_ext_offset];
+	t->key_mem = &t->memory[key_offset];
+	t->key_stack = (uint32_t *) &t->memory[key_stack_offset];
+	t->bkt_ext_stack = (uint32_t *) &t->memory[bkt_ext_stack_offset];
+	t->data_mem = &t->memory[data_offset];
+
+	/* Key stack */
+	for (i = 0; i < t->n_keys; i++)
+		t->key_stack[i] = t->n_keys - 1 - i;
+	t->key_stack_tos = t->n_keys;
+
+	/* Bucket ext stack */
+	for (i = 0; i < t->n_buckets_ext; i++)
+		t->bkt_ext_stack[i] = t->n_buckets_ext - 1 - i;
+	t->bkt_ext_stack_tos = t->n_buckets_ext;
+
+	return t;
+}
+
+static int
+rte_table_hash_ext_free(void *table)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+
+	/* Check input parameters */
+	if (t == NULL)
+		return -EINVAL;
+
+	rte_free(t);
+	return 0;
+}
+
+static int
+rte_table_hash_ext_entry_add(void *table, void *key, void *entry,
+	int *key_found, void **entry_ptr)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+	struct bucket *bkt0, *bkt, *bkt_prev;
+	uint64_t sig;
+	uint32_t bkt_index, i;
+
+	sig = t->f_hash(key, t->key_size, t->seed);
+	bkt_index = sig & t->bucket_mask;
+	bkt0 = &t->buckets[bkt_index];
+	sig = (sig >> 16) | 1LLU;
+
+	/* Key is present in the bucket */
+	for (bkt = bkt0; bkt != NULL; bkt = BUCKET_NEXT(bkt))
+		for (i = 0; i < KEYS_PER_BUCKET; i++) {
+			uint64_t bkt_sig = (uint64_t) bkt->sig[i];
+			uint32_t bkt_key_index = bkt->key_pos[i];
+			uint8_t *bkt_key =
+				&t->key_mem[bkt_key_index << t->key_size_shl];
+
+			if ((sig == bkt_sig) && (memcmp(key, bkt_key,
+				t->key_size) == 0)) {
+				uint8_t *data = &t->data_mem[bkt_key_index <<
+					t->data_size_shl];
+
+				memcpy(data, entry, t->entry_size);
+				*key_found = 1;
+				*entry_ptr = (void *) data;
+				return 0;
+			}
+		}
+
+	/* Key is not present in the bucket */
+	for (bkt_prev = NULL, bkt = bkt0; bkt != NULL; bkt_prev = bkt,
+		bkt = BUCKET_NEXT(bkt))
+		for (i = 0; i < KEYS_PER_BUCKET; i++) {
+			uint64_t bkt_sig = (uint64_t) bkt->sig[i];
+
+			if (bkt_sig == 0) {
+				uint32_t bkt_key_index;
+				uint8_t *bkt_key, *data;
+
+				/* Allocate new key */
+				if (t->key_stack_tos == 0) /* No free keys */
+					return -ENOSPC;
+
+				bkt_key_index = t->key_stack[
+					--t->key_stack_tos];
+
+				/* Install new key */
+				bkt_key = &t->key_mem[bkt_key_index <<
+					t->key_size_shl];
+				data = &t->data_mem[bkt_key_index <<
+					t->data_size_shl];
+
+				bkt->sig[i] = (uint16_t) sig;
+				bkt->key_pos[i] = bkt_key_index;
+				memcpy(bkt_key, key, t->key_size);
+				memcpy(data, entry, t->entry_size);
+
+				*key_found = 0;
+				*entry_ptr = (void *) data;
+				return 0;
+			}
+		}
+
+	/* Bucket full: extend bucket */
+	if ((t->bkt_ext_stack_tos > 0) && (t->key_stack_tos > 0)) {
+		uint32_t bkt_key_index;
+		uint8_t *bkt_key, *data;
+
+		/* Allocate new bucket ext */
+		bkt_index = t->bkt_ext_stack[--t->bkt_ext_stack_tos];
+		bkt = &t->buckets_ext[bkt_index];
+
+		/* Chain the new bucket ext */
+		BUCKET_NEXT_SET(bkt_prev, bkt);
+		BUCKET_NEXT_SET_NULL(bkt);
+
+		/* Allocate new key */
+		bkt_key_index = t->key_stack[--t->key_stack_tos];
+		bkt_key = &t->key_mem[bkt_key_index << t->key_size_shl];
+
+		data = &t->data_mem[bkt_key_index << t->data_size_shl];
+
+		/* Install new key into bucket */
+		bkt->sig[0] = (uint16_t) sig;
+		bkt->key_pos[0] = bkt_key_index;
+		memcpy(bkt_key, key, t->key_size);
+		memcpy(data, entry, t->entry_size);
+
+		*key_found = 0;
+		*entry_ptr = (void *) data;
+		return 0;
+	}
+
+	return -ENOSPC;
+}
+
+static int
+rte_table_hash_ext_entry_delete(void *table, void *key, int *key_found,
+void *entry)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+	struct bucket *bkt0, *bkt, *bkt_prev;
+	uint64_t sig;
+	uint32_t bkt_index, i;
+
+	sig = t->f_hash(key, t->key_size, t->seed);
+	bkt_index = sig & t->bucket_mask;
+	bkt0 = &t->buckets[bkt_index];
+	sig = (sig >> 16) | 1LLU;
+
+	/* Key is present in the bucket */
+	for (bkt_prev = NULL, bkt = bkt0; bkt != NULL; bkt_prev = bkt,
+		bkt = BUCKET_NEXT(bkt))
+		for (i = 0; i < KEYS_PER_BUCKET; i++) {
+			uint64_t bkt_sig = (uint64_t) bkt->sig[i];
+			uint32_t bkt_key_index = bkt->key_pos[i];
+			uint8_t *bkt_key = &t->key_mem[bkt_key_index <<
+				t->key_size_shl];
+
+			if ((sig == bkt_sig) && (memcmp(key, bkt_key,
+				t->key_size) == 0)) {
+				uint8_t *data = &t->data_mem[bkt_key_index <<
+					t->data_size_shl];
+
+				/* Uninstall key from bucket */
+				bkt->sig[i] = 0;
+				*key_found = 1;
+				if (entry)
+					memcpy(entry, data, t->entry_size);
+
+				/* Free key */
+				t->key_stack[t->key_stack_tos++] =
+					bkt_key_index;
+
+				/*Check if bucket is unused */
+				if ((bkt_prev != NULL) &&
+				    (bkt->sig[0] == 0) && (bkt->sig[1] == 0) &&
+				    (bkt->sig[2] == 0) && (bkt->sig[3] == 0)) {
+					/* Unchain bucket */
+					BUCKET_NEXT_COPY(bkt_prev, bkt);
+
+					/* Clear bucket */
+					memset(bkt, 0, sizeof(struct bucket));
+
+					/* Free bucket back to buckets ext */
+					bkt_index = bkt - t->buckets_ext;
+					t->bkt_ext_stack[t->bkt_ext_stack_tos++]
+						= bkt_index;
+				}
+
+				return 0;
+			}
+		}
+
+	/* Key is not present in the bucket */
+	*key_found = 0;
+	return 0;
+}
+
+static int rte_table_hash_ext_lookup_unoptimized(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries,
+	int dosig)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+	uint64_t pkts_mask_out = 0;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_EXT_STATS_PKTS_IN_ADD(t, n_pkts_in);
+
+	for ( ; pkts_mask; ) {
+		struct bucket *bkt0, *bkt;
+		struct rte_mbuf *pkt;
+		uint8_t *key;
+		uint64_t pkt_mask, sig;
+		uint32_t pkt_index, bkt_index, i;
+
+		pkt_index = __builtin_ctzll(pkts_mask);
+		pkt_mask = 1LLU << pkt_index;
+		pkts_mask &= ~pkt_mask;
+
+		pkt = pkts[pkt_index];
+		key = RTE_MBUF_METADATA_UINT8_PTR(pkt, t->key_offset);
+		if (dosig)
+			sig = (uint64_t) t->f_hash(key, t->key_size, t->seed);
+		else
+			sig = RTE_MBUF_METADATA_UINT32(pkt,
+				t->signature_offset);
+
+		bkt_index = sig & t->bucket_mask;
+		bkt0 = &t->buckets[bkt_index];
+		sig = (sig >> 16) | 1LLU;
+
+		/* Key is present in the bucket */
+		for (bkt = bkt0; bkt != NULL; bkt = BUCKET_NEXT(bkt))
+			for (i = 0; i < KEYS_PER_BUCKET; i++) {
+				uint64_t bkt_sig = (uint64_t) bkt->sig[i];
+				uint32_t bkt_key_index = bkt->key_pos[i];
+				uint8_t *bkt_key = &t->key_mem[bkt_key_index <<
+					t->key_size_shl];
+
+				if ((sig == bkt_sig) && (memcmp(key, bkt_key,
+					t->key_size) == 0)) {
+					uint8_t *data = &t->data_mem[
+					bkt_key_index << t->data_size_shl];
+
+					pkts_mask_out |= pkt_mask;
+					entries[pkt_index] = (void *) data;
+					break;
+				}
+			}
+	}
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_EXT_STATS_PKTS_LOOKUP_MISS(t, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+	return 0;
+}
+
+/***
+ *
+ * mask = match bitmask
+ * match = at least one match
+ * match_many = more than one match
+ * match_pos = position of first match
+ *
+ *----------------------------------------
+ * mask		 match	 match_many	  match_pos
+ *----------------------------------------
+ * 0000		 0		 0			  00
+ * 0001		 1		 0			  00
+ * 0010		 1		 0			  01
+ * 0011		 1		 1			  00
+ *----------------------------------------
+ * 0100		 1		 0			  10
+ * 0101		 1		 1			  00
+ * 0110		 1		 1			  01
+ * 0111		 1		 1			  00
+ *----------------------------------------
+ * 1000		 1		 0			  11
+ * 1001		 1		 1			  00
+ * 1010		 1		 1			  01
+ * 1011		 1		 1			  00
+ *----------------------------------------
+ * 1100		 1		 1			  10
+ * 1101		 1		 1			  00
+ * 1110		 1		 1			  01
+ * 1111		 1		 1			  00
+ *----------------------------------------
+ *
+ * match = 1111_1111_1111_1110
+ * match_many = 1111_1110_1110_1000
+ * match_pos = 0001_0010_0001_0011__0001_0010_0001_0000
+ *
+ * match = 0xFFFELLU
+ * match_many = 0xFEE8LLU
+ * match_pos = 0x12131210LLU
+ *
+ ***/
+
+#define LUT_MATCH						0xFFFELLU
+#define LUT_MATCH_MANY						0xFEE8LLU
+#define LUT_MATCH_POS						0x12131210LLU
+
+#define lookup_cmp_sig(mbuf_sig, bucket, match, match_many, match_pos)	\
+{									\
+	uint64_t bucket_sig[4], mask[4], mask_all;			\
+									\
+	bucket_sig[0] = bucket->sig[0];					\
+	bucket_sig[1] = bucket->sig[1];					\
+	bucket_sig[2] = bucket->sig[2];					\
+	bucket_sig[3] = bucket->sig[3];					\
+									\
+	bucket_sig[0] ^= mbuf_sig;					\
+	bucket_sig[1] ^= mbuf_sig;					\
+	bucket_sig[2] ^= mbuf_sig;					\
+	bucket_sig[3] ^= mbuf_sig;					\
+									\
+	mask[0] = 0;							\
+	mask[1] = 0;							\
+	mask[2] = 0;							\
+	mask[3] = 0;							\
+									\
+	if (bucket_sig[0] == 0)						\
+		mask[0] = 1;						\
+	if (bucket_sig[1] == 0)						\
+		mask[1] = 2;						\
+	if (bucket_sig[2] == 0)						\
+		mask[2] = 4;						\
+	if (bucket_sig[3] == 0)						\
+		mask[3] = 8;						\
+									\
+	mask_all = (mask[0] | mask[1]) | (mask[2] | mask[3]);		\
+									\
+	match = (LUT_MATCH >> mask_all) & 1;				\
+	match_many = (LUT_MATCH_MANY >> mask_all) & 1;			\
+	match_pos = (LUT_MATCH_POS >> (mask_all << 1)) & 3;		\
+}
+
+#define lookup_cmp_key(mbuf, key, match_key, f)				\
+{									\
+	uint64_t *pkt_key = RTE_MBUF_METADATA_UINT64_PTR(mbuf, f->key_offset);\
+	uint64_t *bkt_key = (uint64_t *) key;				\
+									\
+	switch (f->key_size) {						\
+	case 8:								\
+	{								\
+		uint64_t xor = pkt_key[0] ^ bkt_key[0];			\
+		match_key = 0;						\
+		if (xor == 0)						\
+			match_key = 1;					\
+	}								\
+	break;								\
+									\
+	case 16:							\
+	{								\
+		uint64_t xor[2], or;					\
+									\
+		xor[0] = pkt_key[0] ^ bkt_key[0];			\
+		xor[1] = pkt_key[1] ^ bkt_key[1];			\
+		or = xor[0] | xor[1];					\
+		match_key = 0;						\
+		if (or == 0)						\
+			match_key = 1;					\
+	}								\
+	break;								\
+									\
+	case 32:							\
+	{								\
+		uint64_t xor[4], or;					\
+									\
+		xor[0] = pkt_key[0] ^ bkt_key[0];			\
+		xor[1] = pkt_key[1] ^ bkt_key[1];			\
+		xor[2] = pkt_key[2] ^ bkt_key[2];			\
+		xor[3] = pkt_key[3] ^ bkt_key[3];			\
+		or = xor[0] | xor[1] | xor[2] | xor[3];			\
+		match_key = 0;						\
+		if (or == 0)						\
+			match_key = 1;					\
+	}								\
+	break;								\
+									\
+	case 64:							\
+	{								\
+		uint64_t xor[8], or;					\
+									\
+		xor[0] = pkt_key[0] ^ bkt_key[0];			\
+		xor[1] = pkt_key[1] ^ bkt_key[1];			\
+		xor[2] = pkt_key[2] ^ bkt_key[2];			\
+		xor[3] = pkt_key[3] ^ bkt_key[3];			\
+		xor[4] = pkt_key[4] ^ bkt_key[4];			\
+		xor[5] = pkt_key[5] ^ bkt_key[5];			\
+		xor[6] = pkt_key[6] ^ bkt_key[6];			\
+		xor[7] = pkt_key[7] ^ bkt_key[7];			\
+		or = xor[0] | xor[1] | xor[2] | xor[3] |		\
+			xor[4] | xor[5] | xor[6] | xor[7];		\
+		match_key = 0;						\
+		if (or == 0)						\
+			match_key = 1;					\
+	}								\
+	break;								\
+									\
+	default:							\
+		match_key = 0;						\
+		if (memcmp(pkt_key, bkt_key, f->key_size) == 0)		\
+			match_key = 1;					\
+	}								\
+}
+
+#define lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index)	\
+{									\
+	uint64_t pkt00_mask, pkt01_mask;				\
+	struct rte_mbuf *mbuf00, *mbuf01;				\
+	uint32_t key_offset = t->key_offset;			\
+									\
+	pkt00_index = __builtin_ctzll(pkts_mask);			\
+	pkt00_mask = 1LLU << pkt00_index;				\
+	pkts_mask &= ~pkt00_mask;					\
+	mbuf00 = pkts[pkt00_index];					\
+									\
+	pkt01_index = __builtin_ctzll(pkts_mask);			\
+	pkt01_mask = 1LLU << pkt01_index;				\
+	pkts_mask &= ~pkt01_mask;					\
+	mbuf01 = pkts[pkt01_index];					\
+									\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf00, key_offset));\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf01, key_offset));\
+}
+
+#define lookup2_stage0_with_odd_support(t, g, pkts, pkts_mask, pkt00_index, \
+	pkt01_index)							\
+{									\
+	uint64_t pkt00_mask, pkt01_mask;				\
+	struct rte_mbuf *mbuf00, *mbuf01;				\
+	uint32_t key_offset = t->key_offset;			\
+									\
+	pkt00_index = __builtin_ctzll(pkts_mask);			\
+	pkt00_mask = 1LLU << pkt00_index;				\
+	pkts_mask &= ~pkt00_mask;					\
+	mbuf00 = pkts[pkt00_index];					\
+									\
+	pkt01_index = __builtin_ctzll(pkts_mask);			\
+	if (pkts_mask == 0)						\
+		pkt01_index = pkt00_index;				\
+	pkt01_mask = 1LLU << pkt01_index;				\
+	pkts_mask &= ~pkt01_mask;					\
+	mbuf01 = pkts[pkt01_index];					\
+									\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf00, key_offset));\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf01, key_offset));\
+}
+
+#define lookup2_stage1(t, g, pkts, pkt10_index, pkt11_index)		\
+{									\
+	struct grinder *g10, *g11;					\
+	uint64_t sig10, sig11, bkt10_index, bkt11_index;		\
+	struct rte_mbuf *mbuf10, *mbuf11;				\
+	struct bucket *bkt10, *bkt11, *buckets = t->buckets;		\
+	uint64_t bucket_mask = t->bucket_mask;				\
+	uint32_t signature_offset = t->signature_offset;		\
+									\
+	mbuf10 = pkts[pkt10_index];					\
+	sig10 = (uint64_t) RTE_MBUF_METADATA_UINT32(mbuf10, signature_offset);\
+	bkt10_index = sig10 & bucket_mask;				\
+	bkt10 = &buckets[bkt10_index];					\
+									\
+	mbuf11 = pkts[pkt11_index];					\
+	sig11 = (uint64_t) RTE_MBUF_METADATA_UINT32(mbuf11, signature_offset);\
+	bkt11_index = sig11 & bucket_mask;				\
+	bkt11 = &buckets[bkt11_index];					\
+									\
+	rte_prefetch0(bkt10);						\
+	rte_prefetch0(bkt11);						\
+									\
+	g10 = &g[pkt10_index];						\
+	g10->sig = sig10;						\
+	g10->bkt = bkt10;						\
+									\
+	g11 = &g[pkt11_index];						\
+	g11->sig = sig11;						\
+	g11->bkt = bkt11;						\
+}
+
+#define lookup2_stage1_dosig(t, g, pkts, pkt10_index, pkt11_index)	\
+{									\
+	struct grinder *g10, *g11;					\
+	uint64_t sig10, sig11, bkt10_index, bkt11_index;		\
+	struct rte_mbuf *mbuf10, *mbuf11;				\
+	struct bucket *bkt10, *bkt11, *buckets = t->buckets;		\
+	uint8_t *key10, *key11;						\
+	uint64_t bucket_mask = t->bucket_mask;				\
+	rte_table_hash_op_hash f_hash = t->f_hash;			\
+	uint64_t seed = t->seed;					\
+	uint32_t key_size = t->key_size;				\
+	uint32_t key_offset = t->key_offset;				\
+									\
+	mbuf10 = pkts[pkt10_index];					\
+	key10 = RTE_MBUF_METADATA_UINT8_PTR(mbuf10, key_offset);	\
+	sig10 = (uint64_t) f_hash(key10, key_size, seed);		\
+	bkt10_index = sig10 & bucket_mask;				\
+	bkt10 = &buckets[bkt10_index];					\
+									\
+	mbuf11 = pkts[pkt11_index];					\
+	key11 = RTE_MBUF_METADATA_UINT8_PTR(mbuf11, key_offset);	\
+	sig11 = (uint64_t) f_hash(key11, key_size, seed);		\
+	bkt11_index = sig11 & bucket_mask;				\
+	bkt11 = &buckets[bkt11_index];					\
+									\
+	rte_prefetch0(bkt10);						\
+	rte_prefetch0(bkt11);						\
+									\
+	g10 = &g[pkt10_index];						\
+	g10->sig = sig10;						\
+	g10->bkt = bkt10;						\
+									\
+	g11 = &g[pkt11_index];						\
+	g11->sig = sig11;						\
+	g11->bkt = bkt11;						\
+}
+
+#define lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many)\
+{									\
+	struct grinder *g20, *g21;					\
+	uint64_t sig20, sig21;						\
+	struct bucket *bkt20, *bkt21;					\
+	uint8_t *key20, *key21, *key_mem = t->key_mem;			\
+	uint64_t match20, match21, match_many20, match_many21;		\
+	uint64_t match_pos20, match_pos21;				\
+	uint32_t key20_index, key21_index, key_size_shl = t->key_size_shl;\
+									\
+	g20 = &g[pkt20_index];						\
+	sig20 = g20->sig;						\
+	bkt20 = g20->bkt;						\
+	sig20 = (sig20 >> 16) | 1LLU;					\
+	lookup_cmp_sig(sig20, bkt20, match20, match_many20, match_pos20);\
+	match20 <<= pkt20_index;					\
+	match_many20 |= BUCKET_NEXT_VALID(bkt20);			\
+	match_many20 <<= pkt20_index;					\
+	key20_index = bkt20->key_pos[match_pos20];			\
+	key20 = &key_mem[key20_index << key_size_shl];			\
+									\
+	g21 = &g[pkt21_index];						\
+	sig21 = g21->sig;						\
+	bkt21 = g21->bkt;						\
+	sig21 = (sig21 >> 16) | 1LLU;					\
+	lookup_cmp_sig(sig21, bkt21, match21, match_many21, match_pos21);\
+	match21 <<= pkt21_index;					\
+	match_many21 |= BUCKET_NEXT_VALID(bkt21);			\
+	match_many21 <<= pkt21_index;					\
+	key21_index = bkt21->key_pos[match_pos21];			\
+	key21 = &key_mem[key21_index << key_size_shl];			\
+									\
+	rte_prefetch0(key20);						\
+	rte_prefetch0(key21);						\
+									\
+	pkts_mask_match_many |= match_many20 | match_many21;		\
+									\
+	g20->match = match20;						\
+	g20->key_index = key20_index;					\
+									\
+	g21->match = match21;						\
+	g21->key_index = key21_index;					\
+}
+
+#define lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out, \
+	entries)							\
+{									\
+	struct grinder *g30, *g31;					\
+	struct rte_mbuf *mbuf30, *mbuf31;				\
+	uint8_t *key30, *key31, *key_mem = t->key_mem;			\
+	uint8_t *data30, *data31, *data_mem = t->data_mem;		\
+	uint64_t match30, match31, match_key30, match_key31, match_keys;\
+	uint32_t key30_index, key31_index;				\
+	uint32_t key_size_shl = t->key_size_shl;			\
+	uint32_t data_size_shl = t->data_size_shl;			\
+									\
+	mbuf30 = pkts[pkt30_index];					\
+	g30 = &g[pkt30_index];						\
+	match30 = g30->match;						\
+	key30_index = g30->key_index;					\
+	key30 = &key_mem[key30_index << key_size_shl];			\
+	lookup_cmp_key(mbuf30, key30, match_key30, t);			\
+	match_key30 <<= pkt30_index;					\
+	match_key30 &= match30;						\
+	data30 = &data_mem[key30_index << data_size_shl];		\
+	entries[pkt30_index] = data30;					\
+									\
+	mbuf31 = pkts[pkt31_index];					\
+	g31 = &g[pkt31_index];						\
+	match31 = g31->match;						\
+	key31_index = g31->key_index;					\
+	key31 = &key_mem[key31_index << key_size_shl];			\
+	lookup_cmp_key(mbuf31, key31, match_key31, t);			\
+	match_key31 <<= pkt31_index;					\
+	match_key31 &= match31;						\
+	data31 = &data_mem[key31_index << data_size_shl];		\
+	entries[pkt31_index] = data31;					\
+									\
+	rte_prefetch0(data30);						\
+	rte_prefetch0(data31);						\
+									\
+	match_keys = match_key30 | match_key31;				\
+	pkts_mask_out |= match_keys;					\
+}
+
+/***
+* The lookup function implements a 4-stage pipeline, with each stage processing
+* two different packets. The purpose of pipelined implementation is to hide the
+* latency of prefetching the data structures and loosen the data dependency
+* between instructions.
+*
+*  p00  _______   p10  _______   p20  _______   p30  _______
+*----->|       |----->|       |----->|       |----->|       |----->
+*      |   0   |      |   1   |      |   2   |      |   3   |
+*----->|_______|----->|_______|----->|_______|----->|_______|----->
+*  p01            p11            p21            p31
+*
+* The naming convention is:
+*    pXY = packet Y of stage X, X = 0 .. 3, Y = 0 .. 1
+*
+***/
+static int rte_table_hash_ext_lookup(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+	struct grinder *g = t->grinders;
+	uint64_t pkt00_index, pkt01_index, pkt10_index, pkt11_index;
+	uint64_t pkt20_index, pkt21_index, pkt30_index, pkt31_index;
+	uint64_t pkts_mask_out = 0, pkts_mask_match_many = 0;
+	int status = 0;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_EXT_STATS_PKTS_IN_ADD(t, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 7 packets */
+	if (__builtin_popcountll(pkts_mask) < 7)
+		return rte_table_hash_ext_lookup_unoptimized(table, pkts,
+			pkts_mask, lookup_hit_mask, entries, 0);
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index);
+
+	/* Pipeline feed */
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(t, g, pkts, pkt10_index, pkt11_index);
+
+	/* Pipeline feed */
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(t, g, pkts, pkt10_index, pkt11_index);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many);
+
+	/*
+	* Pipeline run
+	*
+	*/
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		pkt30_index = pkt20_index;
+		pkt31_index = pkt21_index;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(t, g, pkts, pkts_mask,
+			pkt00_index, pkt01_index);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1(t, g, pkts, pkt10_index, pkt11_index);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2(t, g, pkt20_index, pkt21_index,
+			pkts_mask_match_many);
+
+		/* Pipeline stage 3 */
+		lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index,
+			pkts_mask_out, entries);
+	}
+
+	/* Pipeline feed */
+	pkt30_index = pkt20_index;
+	pkt31_index = pkt21_index;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(t, g, pkts, pkt10_index, pkt11_index);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many);
+
+	/* Pipeline stage 3 */
+	lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out,
+		entries);
+
+	/* Pipeline feed */
+	pkt30_index = pkt20_index;
+	pkt31_index = pkt21_index;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many);
+
+	/* Pipeline stage 3 */
+	lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out,
+		entries);
+
+	/* Pipeline feed */
+	pkt30_index = pkt20_index;
+	pkt31_index = pkt21_index;
+
+	/* Pipeline stage 3 */
+	lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out,
+		entries);
+
+	/* Slow path */
+	pkts_mask_match_many &= ~pkts_mask_out;
+	if (pkts_mask_match_many) {
+		uint64_t pkts_mask_out_slow = 0;
+
+		status = rte_table_hash_ext_lookup_unoptimized(table, pkts,
+			pkts_mask_match_many, &pkts_mask_out_slow, entries, 0);
+		pkts_mask_out |= pkts_mask_out_slow;
+	}
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_EXT_STATS_PKTS_LOOKUP_MISS(t, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+	return status;
+}
+
+static int rte_table_hash_ext_lookup_dosig(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+	struct grinder *g = t->grinders;
+	uint64_t pkt00_index, pkt01_index, pkt10_index, pkt11_index;
+	uint64_t pkt20_index, pkt21_index, pkt30_index, pkt31_index;
+	uint64_t pkts_mask_out = 0, pkts_mask_match_many = 0;
+	int status = 0;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_EXT_STATS_PKTS_IN_ADD(t, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 7 packets */
+	if (__builtin_popcountll(pkts_mask) < 7)
+		return rte_table_hash_ext_lookup_unoptimized(table, pkts,
+			pkts_mask, lookup_hit_mask, entries, 1);
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index);
+
+	/* Pipeline feed */
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(t, g, pkts, pkt10_index, pkt11_index);
+
+	/* Pipeline feed */
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(t, g, pkts, pkt10_index, pkt11_index);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many);
+
+	/*
+	* Pipeline run
+	*
+	*/
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		pkt30_index = pkt20_index;
+		pkt31_index = pkt21_index;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(t, g, pkts, pkts_mask,
+			pkt00_index, pkt01_index);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1_dosig(t, g, pkts, pkt10_index, pkt11_index);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2(t, g, pkt20_index, pkt21_index,
+			pkts_mask_match_many);
+
+		/* Pipeline stage 3 */
+		lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index,
+			pkts_mask_out, entries);
+	}
+
+	/* Pipeline feed */
+	pkt30_index = pkt20_index;
+	pkt31_index = pkt21_index;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(t, g, pkts, pkt10_index, pkt11_index);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many);
+
+	/* Pipeline stage 3 */
+	lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out,
+		entries);
+
+	/* Pipeline feed */
+	pkt30_index = pkt20_index;
+	pkt31_index = pkt21_index;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many);
+
+	/* Pipeline stage 3 */
+	lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out,
+		entries);
+
+	/* Pipeline feed */
+	pkt30_index = pkt20_index;
+	pkt31_index = pkt21_index;
+
+	/* Pipeline stage 3 */
+	lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out,
+		entries);
+
+	/* Slow path */
+	pkts_mask_match_many &= ~pkts_mask_out;
+	if (pkts_mask_match_many) {
+		uint64_t pkts_mask_out_slow = 0;
+
+		status = rte_table_hash_ext_lookup_unoptimized(table, pkts,
+			pkts_mask_match_many, &pkts_mask_out_slow, entries, 1);
+		pkts_mask_out |= pkts_mask_out_slow;
+	}
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_EXT_STATS_PKTS_LOOKUP_MISS(t, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+	return status;
+}
+
+static int
+rte_table_hash_ext_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+
+	if (stats != NULL)
+		memcpy(stats, &t->stats, sizeof(t->stats));
+
+	if (clear)
+		memset(&t->stats, 0, sizeof(t->stats));
+
+	return 0;
+}
+
+struct rte_table_ops rte_table_hash_ext_ops	 = {
+	.f_create = rte_table_hash_ext_create,
+	.f_free = rte_table_hash_ext_free,
+	.f_add = rte_table_hash_ext_entry_add,
+	.f_delete = rte_table_hash_ext_entry_delete,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_hash_ext_lookup,
+	.f_stats = rte_table_hash_ext_stats_read,
+};
+
+struct rte_table_ops rte_table_hash_ext_dosig_ops  = {
+	.f_create = rte_table_hash_ext_create,
+	.f_free = rte_table_hash_ext_free,
+	.f_add = rte_table_hash_ext_entry_add,
+	.f_delete = rte_table_hash_ext_entry_delete,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_hash_ext_lookup_dosig,
+	.f_stats = rte_table_hash_ext_stats_read,
+};
diff --git a/lib/librte_table/rte_table_hash_key16.c b/lib/librte_table/rte_table_hash_key16.c
new file mode 100644
index 00000000..b7e000fd
--- /dev/null
+++ b/lib/librte_table/rte_table_hash_key16.c
@@ -0,0 +1,1515 @@
+/*-
+ *	 BSD LICENSE
+ *
+ *	 Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *	 All rights reserved.
+ *
+ *	 Redistribution and use in source and binary forms, with or without
+ *	 modification, are permitted provided that the following conditions
+ *	 are met:
+ *
+ *	* Redistributions of source code must retain the above copyright
+ *		 notice, this list of conditions and the following disclaimer.
+ *	* Redistributions in binary form must reproduce the above copyright
+ *		 notice, this list of conditions and the following disclaimer in
+ *		 the documentation and/or other materials provided with the
+ *		 distribution.
+ *	* Neither the name of Intel Corporation nor the names of its
+ *		 contributors may be used to endorse or promote products derived
+ *		 from this software without specific prior written permission.
+ *
+ *	 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *	 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *	 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *	 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *	 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *	 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *	 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *	 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *	 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *	 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *	 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <string.h>
+#include <stdio.h>
+
+#include <rte_common.h>
+#include <rte_mbuf.h>
+#include <rte_memory.h>
+#include <rte_malloc.h>
+#include <rte_log.h>
+
+#include "rte_table_hash.h"
+#include "rte_lru.h"
+
+#define RTE_TABLE_HASH_KEY_SIZE						16
+
+#define RTE_BUCKET_ENTRY_VALID						0x1LLU
+
+#ifdef RTE_TABLE_STATS_COLLECT
+
+#define RTE_TABLE_HASH_KEY16_STATS_PKTS_IN_ADD(table, val) \
+	table->stats.n_pkts_in += val
+#define RTE_TABLE_HASH_KEY16_STATS_PKTS_LOOKUP_MISS(table, val) \
+	table->stats.n_pkts_lookup_miss += val
+
+#else
+
+#define RTE_TABLE_HASH_KEY16_STATS_PKTS_IN_ADD(table, val)
+#define RTE_TABLE_HASH_KEY16_STATS_PKTS_LOOKUP_MISS(table, val)
+
+#endif
+
+struct rte_bucket_4_16 {
+	/* Cache line 0 */
+	uint64_t signature[4 + 1];
+	uint64_t lru_list;
+	struct rte_bucket_4_16 *next;
+	uint64_t next_valid;
+
+	/* Cache line 1 */
+	uint64_t key[4][2];
+
+	/* Cache line 2 */
+	uint8_t data[0];
+};
+
+struct rte_table_hash {
+	struct rte_table_stats stats;
+
+	/* Input parameters */
+	uint32_t n_buckets;
+	uint32_t n_entries_per_bucket;
+	uint32_t key_size;
+	uint32_t entry_size;
+	uint32_t bucket_size;
+	uint32_t signature_offset;
+	uint32_t key_offset;
+	uint64_t key_mask[2];
+	rte_table_hash_op_hash f_hash;
+	uint64_t seed;
+
+	/* Extendible buckets */
+	uint32_t n_buckets_ext;
+	uint32_t stack_pos;
+	uint32_t *stack;
+
+	/* Lookup table */
+	uint8_t memory[0] __rte_cache_aligned;
+};
+
+static int
+check_params_create_lru(struct rte_table_hash_key16_lru_params *params) {
+	/* n_entries */
+	if (params->n_entries == 0) {
+		RTE_LOG(ERR, TABLE, "%s: n_entries is zero\n", __func__);
+		return -EINVAL;
+	}
+
+	/* f_hash */
+	if (params->f_hash == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: f_hash function pointer is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void *
+rte_table_hash_create_key16_lru(void *params,
+		int socket_id,
+		uint32_t entry_size)
+{
+	struct rte_table_hash_key16_lru_params *p =
+			(struct rte_table_hash_key16_lru_params *) params;
+	struct rte_table_hash *f;
+	uint32_t n_buckets, n_entries_per_bucket,
+			key_size, bucket_size_cl, total_size, i;
+
+	/* Check input parameters */
+	if ((check_params_create_lru(p) != 0) ||
+		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
+		((sizeof(struct rte_bucket_4_16) % RTE_CACHE_LINE_SIZE) != 0))
+		return NULL;
+	n_entries_per_bucket = 4;
+	key_size = 16;
+
+	/* Memory allocation */
+	n_buckets = rte_align32pow2((p->n_entries + n_entries_per_bucket - 1) /
+		n_entries_per_bucket);
+	bucket_size_cl = (sizeof(struct rte_bucket_4_16) + n_entries_per_bucket
+		* entry_size + RTE_CACHE_LINE_SIZE - 1) / RTE_CACHE_LINE_SIZE;
+	total_size = sizeof(struct rte_table_hash) + n_buckets *
+		bucket_size_cl * RTE_CACHE_LINE_SIZE;
+
+	f = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE, socket_id);
+	if (f == NULL) {
+		RTE_LOG(ERR, TABLE,
+		"%s: Cannot allocate %u bytes for hash table\n",
+		__func__, total_size);
+		return NULL;
+	}
+	RTE_LOG(INFO, TABLE,
+		"%s: Hash table memory footprint is %u bytes\n",
+		__func__, total_size);
+
+	/* Memory initialization */
+	f->n_buckets = n_buckets;
+	f->n_entries_per_bucket = n_entries_per_bucket;
+	f->key_size = key_size;
+	f->entry_size = entry_size;
+	f->bucket_size = bucket_size_cl * RTE_CACHE_LINE_SIZE;
+	f->signature_offset = p->signature_offset;
+	f->key_offset = p->key_offset;
+	f->f_hash = p->f_hash;
+	f->seed = p->seed;
+
+	if (p->key_mask != NULL) {
+		f->key_mask[0] = ((uint64_t *)p->key_mask)[0];
+		f->key_mask[1] = ((uint64_t *)p->key_mask)[1];
+	} else {
+		f->key_mask[0] = 0xFFFFFFFFFFFFFFFFLLU;
+		f->key_mask[1] = 0xFFFFFFFFFFFFFFFFLLU;
+	}
+
+	for (i = 0; i < n_buckets; i++) {
+		struct rte_bucket_4_16 *bucket;
+
+		bucket = (struct rte_bucket_4_16 *) &f->memory[i *
+			f->bucket_size];
+		lru_init(bucket);
+	}
+
+	return f;
+}
+
+static int
+rte_table_hash_free_key16_lru(void *table)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+
+	/* Check input parameters */
+	if (f == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	rte_free(f);
+	return 0;
+}
+
+static int
+rte_table_hash_entry_add_key16_lru(
+	void *table,
+	void *key,
+	void *entry,
+	int *key_found,
+	void **entry_ptr)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_16 *bucket;
+	uint64_t signature, pos;
+	uint32_t bucket_index, i;
+
+	signature = f->f_hash(key, f->key_size, f->seed);
+	bucket_index = signature & (f->n_buckets - 1);
+	bucket = (struct rte_bucket_4_16 *)
+			&f->memory[bucket_index * f->bucket_size];
+	signature |= RTE_BUCKET_ENTRY_VALID;
+
+	/* Key is present in the bucket */
+	for (i = 0; i < 4; i++) {
+		uint64_t bucket_signature = bucket->signature[i];
+		uint8_t *bucket_key = (uint8_t *) bucket->key[i];
+
+		if ((bucket_signature == signature) &&
+				(memcmp(key, bucket_key, f->key_size) == 0)) {
+			uint8_t *bucket_data = &bucket->data[i * f->entry_size];
+
+			memcpy(bucket_data, entry, f->entry_size);
+			lru_update(bucket, i);
+			*key_found = 1;
+			*entry_ptr = (void *) bucket_data;
+			return 0;
+		}
+	}
+
+	/* Key is not present in the bucket */
+	for (i = 0; i < 4; i++) {
+		uint64_t bucket_signature = bucket->signature[i];
+		uint8_t *bucket_key = (uint8_t *) bucket->key[i];
+
+		if (bucket_signature == 0) {
+			uint8_t *bucket_data = &bucket->data[i * f->entry_size];
+
+			bucket->signature[i] = signature;
+			memcpy(bucket_key, key, f->key_size);
+			memcpy(bucket_data, entry, f->entry_size);
+			lru_update(bucket, i);
+			*key_found = 0;
+			*entry_ptr = (void *) bucket_data;
+
+			return 0;
+		}
+	}
+
+	/* Bucket full: replace LRU entry */
+	pos = lru_pos(bucket);
+	bucket->signature[pos] = signature;
+	memcpy(bucket->key[pos], key, f->key_size);
+	memcpy(&bucket->data[pos * f->entry_size], entry, f->entry_size);
+	lru_update(bucket, pos);
+	*key_found = 0;
+	*entry_ptr = (void *) &bucket->data[pos * f->entry_size];
+
+	return 0;
+}
+
+static int
+rte_table_hash_entry_delete_key16_lru(
+	void *table,
+	void *key,
+	int *key_found,
+	void *entry)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_16 *bucket;
+	uint64_t signature;
+	uint32_t bucket_index, i;
+
+	signature = f->f_hash(key, f->key_size, f->seed);
+	bucket_index = signature & (f->n_buckets - 1);
+	bucket = (struct rte_bucket_4_16 *)
+			&f->memory[bucket_index * f->bucket_size];
+	signature |= RTE_BUCKET_ENTRY_VALID;
+
+	/* Key is present in the bucket */
+	for (i = 0; i < 4; i++) {
+		uint64_t bucket_signature = bucket->signature[i];
+		uint8_t *bucket_key = (uint8_t *) bucket->key[i];
+
+		if ((bucket_signature == signature) &&
+				(memcmp(key, bucket_key, f->key_size) == 0)) {
+			uint8_t *bucket_data = &bucket->data[i * f->entry_size];
+
+			bucket->signature[i] = 0;
+			*key_found = 1;
+			if (entry)
+				memcpy(entry, bucket_data, f->entry_size);
+			return 0;
+		}
+	}
+
+	/* Key is not present in the bucket */
+	*key_found = 0;
+	return 0;
+}
+
+static int
+check_params_create_ext(struct rte_table_hash_key16_ext_params *params) {
+	/* n_entries */
+	if (params->n_entries == 0) {
+		RTE_LOG(ERR, TABLE, "%s: n_entries is zero\n", __func__);
+		return -EINVAL;
+	}
+
+	/* n_entries_ext */
+	if (params->n_entries_ext == 0) {
+		RTE_LOG(ERR, TABLE, "%s: n_entries_ext is zero\n", __func__);
+		return -EINVAL;
+	}
+
+	/* f_hash */
+	if (params->f_hash == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: f_hash function pointer is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void *
+rte_table_hash_create_key16_ext(void *params,
+		int socket_id,
+		uint32_t entry_size)
+{
+	struct rte_table_hash_key16_ext_params *p =
+			(struct rte_table_hash_key16_ext_params *) params;
+	struct rte_table_hash *f;
+	uint32_t n_buckets, n_buckets_ext, n_entries_per_bucket, key_size,
+			bucket_size_cl, stack_size_cl, total_size, i;
+
+	/* Check input parameters */
+	if ((check_params_create_ext(p) != 0) ||
+		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
+		((sizeof(struct rte_bucket_4_16) % RTE_CACHE_LINE_SIZE) != 0))
+		return NULL;
+
+	n_entries_per_bucket = 4;
+	key_size = 16;
+
+	/* Memory allocation */
+	n_buckets = rte_align32pow2((p->n_entries + n_entries_per_bucket - 1) /
+		n_entries_per_bucket);
+	n_buckets_ext = (p->n_entries_ext + n_entries_per_bucket - 1) /
+		n_entries_per_bucket;
+	bucket_size_cl = (sizeof(struct rte_bucket_4_16) + n_entries_per_bucket
+		* entry_size + RTE_CACHE_LINE_SIZE - 1) / RTE_CACHE_LINE_SIZE;
+	stack_size_cl = (n_buckets_ext * sizeof(uint32_t) + RTE_CACHE_LINE_SIZE - 1)
+		/ RTE_CACHE_LINE_SIZE;
+	total_size = sizeof(struct rte_table_hash) +
+		((n_buckets + n_buckets_ext) * bucket_size_cl + stack_size_cl) *
+		RTE_CACHE_LINE_SIZE;
+
+	f = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE, socket_id);
+	if (f == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot allocate %u bytes for hash table\n",
+			__func__, total_size);
+		return NULL;
+	}
+	RTE_LOG(INFO, TABLE,
+		"%s: Hash table memory footprint is %u bytes\n",
+		__func__, total_size);
+
+	/* Memory initialization */
+	f->n_buckets = n_buckets;
+	f->n_entries_per_bucket = n_entries_per_bucket;
+	f->key_size = key_size;
+	f->entry_size = entry_size;
+	f->bucket_size = bucket_size_cl * RTE_CACHE_LINE_SIZE;
+	f->signature_offset = p->signature_offset;
+	f->key_offset = p->key_offset;
+	f->f_hash = p->f_hash;
+	f->seed = p->seed;
+
+	f->n_buckets_ext = n_buckets_ext;
+	f->stack_pos = n_buckets_ext;
+	f->stack = (uint32_t *)
+		&f->memory[(n_buckets + n_buckets_ext) * f->bucket_size];
+
+	for (i = 0; i < n_buckets_ext; i++)
+		f->stack[i] = i;
+
+	if (p->key_mask != NULL) {
+		f->key_mask[0] = (((uint64_t *)p->key_mask)[0]);
+		f->key_mask[1] = (((uint64_t *)p->key_mask)[1]);
+	} else {
+		f->key_mask[0] = 0xFFFFFFFFFFFFFFFFLLU;
+		f->key_mask[1] = 0xFFFFFFFFFFFFFFFFLLU;
+	}
+
+	return f;
+}
+
+static int
+rte_table_hash_free_key16_ext(void *table)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+
+	/* Check input parameters */
+	if (f == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	rte_free(f);
+	return 0;
+}
+
+static int
+rte_table_hash_entry_add_key16_ext(
+	void *table,
+	void *key,
+	void *entry,
+	int *key_found,
+	void **entry_ptr)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_16 *bucket0, *bucket, *bucket_prev;
+	uint64_t signature;
+	uint32_t bucket_index, i;
+
+	signature = f->f_hash(key, f->key_size, f->seed);
+	bucket_index = signature & (f->n_buckets - 1);
+	bucket0 = (struct rte_bucket_4_16 *)
+			&f->memory[bucket_index * f->bucket_size];
+	signature |= RTE_BUCKET_ENTRY_VALID;
+
+	/* Key is present in the bucket */
+	for (bucket = bucket0; bucket != NULL; bucket = bucket->next)
+		for (i = 0; i < 4; i++) {
+			uint64_t bucket_signature = bucket->signature[i];
+			uint8_t *bucket_key = (uint8_t *) bucket->key[i];
+
+			if ((bucket_signature == signature) &&
+				(memcmp(key, bucket_key, f->key_size) == 0)) {
+				uint8_t *bucket_data = &bucket->data[i *
+					f->entry_size];
+
+				memcpy(bucket_data, entry, f->entry_size);
+				*key_found = 1;
+				*entry_ptr = (void *) bucket_data;
+				return 0;
+			}
+		}
+
+	/* Key is not present in the bucket */
+	for (bucket_prev = NULL, bucket = bucket0; bucket != NULL;
+			 bucket_prev = bucket, bucket = bucket->next)
+		for (i = 0; i < 4; i++) {
+			uint64_t bucket_signature = bucket->signature[i];
+			uint8_t *bucket_key = (uint8_t *) bucket->key[i];
+
+			if (bucket_signature == 0) {
+				uint8_t *bucket_data = &bucket->data[i *
+					f->entry_size];
+
+				bucket->signature[i] = signature;
+				memcpy(bucket_key, key, f->key_size);
+				memcpy(bucket_data, entry, f->entry_size);
+				*key_found = 0;
+				*entry_ptr = (void *) bucket_data;
+
+				return 0;
+			}
+		}
+
+	/* Bucket full: extend bucket */
+	if (f->stack_pos > 0) {
+		bucket_index = f->stack[--f->stack_pos];
+
+		bucket = (struct rte_bucket_4_16 *) &f->memory[(f->n_buckets +
+			bucket_index) * f->bucket_size];
+		bucket_prev->next = bucket;
+		bucket_prev->next_valid = 1;
+
+		bucket->signature[0] = signature;
+		memcpy(bucket->key[0], key, f->key_size);
+		memcpy(&bucket->data[0], entry, f->entry_size);
+		*key_found = 0;
+		*entry_ptr = (void *) &bucket->data[0];
+		return 0;
+	}
+
+	return -ENOSPC;
+}
+
+static int
+rte_table_hash_entry_delete_key16_ext(
+	void *table,
+	void *key,
+	int *key_found,
+	void *entry)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_16 *bucket0, *bucket, *bucket_prev;
+	uint64_t signature;
+	uint32_t bucket_index, i;
+
+	signature = f->f_hash(key, f->key_size, f->seed);
+	bucket_index = signature & (f->n_buckets - 1);
+	bucket0 = (struct rte_bucket_4_16 *)
+		&f->memory[bucket_index * f->bucket_size];
+	signature |= RTE_BUCKET_ENTRY_VALID;
+
+	/* Key is present in the bucket */
+	for (bucket_prev = NULL, bucket = bucket0; bucket != NULL;
+		bucket_prev = bucket, bucket = bucket->next)
+		for (i = 0; i < 4; i++) {
+			uint64_t bucket_signature = bucket->signature[i];
+			uint8_t *bucket_key = (uint8_t *) bucket->key[i];
+
+			if ((bucket_signature == signature) &&
+				(memcmp(key, bucket_key, f->key_size) == 0)) {
+				uint8_t *bucket_data = &bucket->data[i *
+					f->entry_size];
+
+				bucket->signature[i] = 0;
+				*key_found = 1;
+				if (entry)
+					memcpy(entry, bucket_data,
+					f->entry_size);
+
+				if ((bucket->signature[0] == 0) &&
+					(bucket->signature[1] == 0) &&
+					(bucket->signature[2] == 0) &&
+					(bucket->signature[3] == 0) &&
+					(bucket_prev != NULL)) {
+					bucket_prev->next = bucket->next;
+					bucket_prev->next_valid =
+						bucket->next_valid;
+
+					memset(bucket, 0,
+						sizeof(struct rte_bucket_4_16));
+					bucket_index = (((uint8_t *)bucket -
+						(uint8_t *)f->memory)/f->bucket_size) - f->n_buckets;
+					f->stack[f->stack_pos++] = bucket_index;
+				}
+
+				return 0;
+			}
+		}
+
+	/* Key is not present in the bucket */
+	*key_found = 0;
+	return 0;
+}
+
+#define lookup_key16_cmp(key_in, bucket, pos)			\
+{								\
+	uint64_t xor[4][2], or[4], signature[4];		\
+								\
+	signature[0] = (~bucket->signature[0]) & 1;		\
+	signature[1] = (~bucket->signature[1]) & 1;		\
+	signature[2] = (~bucket->signature[2]) & 1;		\
+	signature[3] = (~bucket->signature[3]) & 1;		\
+								\
+	xor[0][0] = key_in[0] ^	 bucket->key[0][0];		\
+	xor[0][1] = key_in[1] ^	 bucket->key[0][1];		\
+								\
+	xor[1][0] = key_in[0] ^	 bucket->key[1][0];		\
+	xor[1][1] = key_in[1] ^	 bucket->key[1][1];		\
+								\
+	xor[2][0] = key_in[0] ^	 bucket->key[2][0];		\
+	xor[2][1] = key_in[1] ^	 bucket->key[2][1];		\
+								\
+	xor[3][0] = key_in[0] ^	 bucket->key[3][0];		\
+	xor[3][1] = key_in[1] ^	 bucket->key[3][1];		\
+								\
+	or[0] = xor[0][0] | xor[0][1] | signature[0];		\
+	or[1] = xor[1][0] | xor[1][1] | signature[1];		\
+	or[2] = xor[2][0] | xor[2][1] | signature[2];		\
+	or[3] = xor[3][0] | xor[3][1] | signature[3];		\
+								\
+	pos = 4;						\
+	if (or[0] == 0)						\
+		pos = 0;					\
+	if (or[1] == 0)						\
+		pos = 1;					\
+	if (or[2] == 0)						\
+		pos = 2;					\
+	if (or[3] == 0)						\
+		pos = 3;					\
+}
+
+#define lookup1_stage0(pkt0_index, mbuf0, pkts, pkts_mask, f)	\
+{								\
+	uint64_t pkt_mask;					\
+	uint32_t key_offset = f->key_offset;\
+								\
+	pkt0_index = __builtin_ctzll(pkts_mask);		\
+	pkt_mask = 1LLU << pkt0_index;				\
+	pkts_mask &= ~pkt_mask;					\
+								\
+	mbuf0 = pkts[pkt0_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf0, key_offset));\
+}
+
+#define lookup1_stage1(mbuf1, bucket1, f)			\
+{								\
+	uint64_t signature;					\
+	uint32_t bucket_index;					\
+								\
+	signature = RTE_MBUF_METADATA_UINT32(mbuf1, f->signature_offset);\
+	bucket_index = signature & (f->n_buckets - 1);		\
+	bucket1 = (struct rte_bucket_4_16 *)			\
+		&f->memory[bucket_index * f->bucket_size];	\
+	rte_prefetch0(bucket1);					\
+	rte_prefetch0((void *)(((uintptr_t) bucket1) + RTE_CACHE_LINE_SIZE));\
+}
+
+#define lookup1_stage1_dosig(mbuf1, bucket1, f)			\
+{								\
+	uint64_t *key;						\
+	uint64_t signature = 0;				\
+	uint32_t bucket_index;				\
+	uint64_t hash_key_buffer[2];		\
+								\
+	key = RTE_MBUF_METADATA_UINT64_PTR(mbuf1, f->key_offset);\
+								\
+	hash_key_buffer[0] = key[0] & f->key_mask[0];	\
+	hash_key_buffer[1] = key[1] & f->key_mask[1];	\
+	signature = f->f_hash(hash_key_buffer,			\
+			RTE_TABLE_HASH_KEY_SIZE, f->seed);		\
+								\
+	bucket_index = signature & (f->n_buckets - 1);		\
+	bucket1 = (struct rte_bucket_4_16 *)			\
+		&f->memory[bucket_index * f->bucket_size];	\
+	rte_prefetch0(bucket1);					\
+	rte_prefetch0((void *)(((uintptr_t) bucket1) + RTE_CACHE_LINE_SIZE));\
+}
+
+#define lookup1_stage2_lru(pkt2_index, mbuf2, bucket2,		\
+		pkts_mask_out, entries, f)			\
+{								\
+	void *a;						\
+	uint64_t pkt_mask;					\
+	uint64_t *key;						\
+	uint64_t hash_key_buffer[2];		\
+	uint32_t pos;						\
+								\
+	key = RTE_MBUF_METADATA_UINT64_PTR(mbuf2, f->key_offset);\
+	hash_key_buffer[0] = key[0] & f->key_mask[0];	\
+	hash_key_buffer[1] = key[1] & f->key_mask[1];	\
+								\
+	lookup_key16_cmp(hash_key_buffer, bucket2, pos);	\
+								\
+	pkt_mask = (bucket2->signature[pos] & 1LLU) << pkt2_index;\
+	pkts_mask_out |= pkt_mask;				\
+								\
+	a = (void *) &bucket2->data[pos * f->entry_size];	\
+	rte_prefetch0(a);					\
+	entries[pkt2_index] = a;				\
+	lru_update(bucket2, pos);				\
+}
+
+#define lookup1_stage2_ext(pkt2_index, mbuf2, bucket2, pkts_mask_out, entries, \
+	buckets_mask, buckets, keys, f)				\
+{								\
+	struct rte_bucket_4_16 *bucket_next;			\
+	void *a;						\
+	uint64_t pkt_mask, bucket_mask;				\
+	uint64_t *key;						\
+	uint64_t hash_key_buffer[2];		\
+	uint32_t pos;						\
+								\
+	key = RTE_MBUF_METADATA_UINT64_PTR(mbuf2, f->key_offset);\
+	hash_key_buffer[0] = key[0] & f->key_mask[0];	\
+	hash_key_buffer[1] = key[1] & f->key_mask[1];	\
+								\
+	lookup_key16_cmp(hash_key_buffer, bucket2, pos);	\
+								\
+	pkt_mask = (bucket2->signature[pos] & 1LLU) << pkt2_index;\
+	pkts_mask_out |= pkt_mask;				\
+								\
+	a = (void *) &bucket2->data[pos * f->entry_size];	\
+	rte_prefetch0(a);					\
+	entries[pkt2_index] = a;				\
+								\
+	bucket_mask = (~pkt_mask) & (bucket2->next_valid << pkt2_index);\
+	buckets_mask |= bucket_mask;				\
+	bucket_next = bucket2->next;				\
+	buckets[pkt2_index] = bucket_next;			\
+	keys[pkt2_index] = key;					\
+}
+
+#define lookup_grinder(pkt_index, buckets, keys, pkts_mask_out, entries,\
+	buckets_mask, f)					\
+{								\
+	struct rte_bucket_4_16 *bucket, *bucket_next;		\
+	void *a;						\
+	uint64_t pkt_mask, bucket_mask;				\
+	uint64_t *key;						\
+	uint64_t hash_key_buffer[2];		\
+	uint32_t pos;						\
+								\
+	bucket = buckets[pkt_index];				\
+	key = keys[pkt_index];					\
+	hash_key_buffer[0] = key[0] & f->key_mask[0];	\
+	hash_key_buffer[1] = key[1] & f->key_mask[1];	\
+								\
+	lookup_key16_cmp(hash_key_buffer, bucket, pos);	\
+								\
+	pkt_mask = (bucket->signature[pos] & 1LLU) << pkt_index;\
+	pkts_mask_out |= pkt_mask;				\
+								\
+	a = (void *) &bucket->data[pos * f->entry_size];	\
+	rte_prefetch0(a);					\
+	entries[pkt_index] = a;					\
+								\
+	bucket_mask = (~pkt_mask) & (bucket->next_valid << pkt_index);\
+	buckets_mask |= bucket_mask;				\
+	bucket_next = bucket->next;				\
+	rte_prefetch0(bucket_next);				\
+	rte_prefetch0((void *)(((uintptr_t) bucket_next) + RTE_CACHE_LINE_SIZE));\
+	buckets[pkt_index] = bucket_next;			\
+	keys[pkt_index] = key;					\
+}
+
+#define lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01,\
+		pkts, pkts_mask, f)				\
+{								\
+	uint64_t pkt00_mask, pkt01_mask;			\
+	uint32_t key_offset = f->key_offset;		\
+								\
+	pkt00_index = __builtin_ctzll(pkts_mask);		\
+	pkt00_mask = 1LLU << pkt00_index;			\
+	pkts_mask &= ~pkt00_mask;				\
+								\
+	mbuf00 = pkts[pkt00_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf00, key_offset));\
+								\
+	pkt01_index = __builtin_ctzll(pkts_mask);		\
+	pkt01_mask = 1LLU << pkt01_index;			\
+	pkts_mask &= ~pkt01_mask;				\
+								\
+	mbuf01 = pkts[pkt01_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf01, key_offset));\
+}
+
+#define lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,\
+		mbuf00, mbuf01, pkts, pkts_mask, f)		\
+{								\
+	uint64_t pkt00_mask, pkt01_mask;			\
+	uint32_t key_offset = f->key_offset;		\
+								\
+	pkt00_index = __builtin_ctzll(pkts_mask);		\
+	pkt00_mask = 1LLU << pkt00_index;			\
+	pkts_mask &= ~pkt00_mask;				\
+								\
+	mbuf00 = pkts[pkt00_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf00, key_offset));	\
+								\
+	pkt01_index = __builtin_ctzll(pkts_mask);		\
+	if (pkts_mask == 0)					\
+		pkt01_index = pkt00_index;			\
+	pkt01_mask = 1LLU << pkt01_index;			\
+	pkts_mask &= ~pkt01_mask;				\
+								\
+	mbuf01 = pkts[pkt01_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf01, key_offset));	\
+}
+
+#define lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f)	\
+{								\
+	uint64_t signature10, signature11;			\
+	uint32_t bucket10_index, bucket11_index;		\
+								\
+	signature10 = RTE_MBUF_METADATA_UINT32(mbuf10, f->signature_offset);\
+	bucket10_index = signature10 & (f->n_buckets - 1);	\
+	bucket10 = (struct rte_bucket_4_16 *)			\
+		&f->memory[bucket10_index * f->bucket_size];	\
+	rte_prefetch0(bucket10);				\
+	rte_prefetch0((void *)(((uintptr_t) bucket10) + RTE_CACHE_LINE_SIZE));\
+								\
+	signature11 = RTE_MBUF_METADATA_UINT32(mbuf11, f->signature_offset);\
+	bucket11_index = signature11 & (f->n_buckets - 1);	\
+	bucket11 = (struct rte_bucket_4_16 *)			\
+		&f->memory[bucket11_index * f->bucket_size];	\
+	rte_prefetch0(bucket11);				\
+	rte_prefetch0((void *)(((uintptr_t) bucket11) + RTE_CACHE_LINE_SIZE));\
+}
+
+#define lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f)	\
+{								\
+	uint64_t *key10, *key11;					\
+	uint64_t hash_offset_buffer[2];				\
+	uint64_t signature10, signature11;			\
+	uint32_t bucket10_index, bucket11_index;	\
+								\
+	key10 = RTE_MBUF_METADATA_UINT64_PTR(mbuf10, f->key_offset);\
+	hash_offset_buffer[0] = key10[0] & f->key_mask[0];	\
+	hash_offset_buffer[1] = key10[1] & f->key_mask[1];	\
+	signature10 = f->f_hash(hash_offset_buffer,			\
+			RTE_TABLE_HASH_KEY_SIZE, f->seed);\
+	bucket10_index = signature10 & (f->n_buckets - 1);	\
+	bucket10 = (struct rte_bucket_4_16 *)				\
+		&f->memory[bucket10_index * f->bucket_size];	\
+	rte_prefetch0(bucket10);				\
+	rte_prefetch0((void *)(((uintptr_t) bucket10) + RTE_CACHE_LINE_SIZE));\
+								\
+	key11 = RTE_MBUF_METADATA_UINT64_PTR(mbuf11, f->key_offset);\
+	hash_offset_buffer[0] = key11[0] & f->key_mask[0];	\
+	hash_offset_buffer[1] = key11[1] & f->key_mask[1];	\
+	signature11 = f->f_hash(hash_offset_buffer,			\
+			RTE_TABLE_HASH_KEY_SIZE, f->seed);\
+	bucket11_index = signature11 & (f->n_buckets - 1);	\
+	bucket11 = (struct rte_bucket_4_16 *)			\
+		&f->memory[bucket11_index * f->bucket_size];	\
+	rte_prefetch0(bucket11);				\
+	rte_prefetch0((void *)(((uintptr_t) bucket11) + RTE_CACHE_LINE_SIZE));\
+}
+
+#define lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,\
+		bucket20, bucket21, pkts_mask_out, entries, f)	\
+{								\
+	void *a20, *a21;					\
+	uint64_t pkt20_mask, pkt21_mask;			\
+	uint64_t *key20, *key21;				\
+	uint64_t hash_key_buffer20[2];			\
+	uint64_t hash_key_buffer21[2];			\
+	uint32_t pos20, pos21;					\
+								\
+	key20 = RTE_MBUF_METADATA_UINT64_PTR(mbuf20, f->key_offset);\
+	key21 = RTE_MBUF_METADATA_UINT64_PTR(mbuf21, f->key_offset);\
+	hash_key_buffer20[0] = key20[0] & f->key_mask[0];	\
+	hash_key_buffer20[1] = key20[1] & f->key_mask[1];	\
+	hash_key_buffer21[0] = key21[0] & f->key_mask[0];	\
+	hash_key_buffer21[1] = key21[1] & f->key_mask[1];	\
+								\
+	lookup_key16_cmp(hash_key_buffer20, bucket20, pos20);	\
+	lookup_key16_cmp(hash_key_buffer21, bucket21, pos21);	\
+								\
+	pkt20_mask = (bucket20->signature[pos20] & 1LLU) << pkt20_index;\
+	pkt21_mask = (bucket21->signature[pos21] & 1LLU) << pkt21_index;\
+	pkts_mask_out |= pkt20_mask | pkt21_mask;			\
+								\
+	a20 = (void *) &bucket20->data[pos20 * f->entry_size];	\
+	a21 = (void *) &bucket21->data[pos21 * f->entry_size];	\
+	rte_prefetch0(a20);					\
+	rte_prefetch0(a21);					\
+	entries[pkt20_index] = a20;				\
+	entries[pkt21_index] = a21;				\
+	lru_update(bucket20, pos20);				\
+	lru_update(bucket21, pos21);				\
+}
+
+#define lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21, bucket20, \
+	bucket21, pkts_mask_out, entries, buckets_mask, buckets, keys, f) \
+{								\
+	struct rte_bucket_4_16 *bucket20_next, *bucket21_next;	\
+	void *a20, *a21;					\
+	uint64_t pkt20_mask, pkt21_mask, bucket20_mask, bucket21_mask;\
+	uint64_t *key20, *key21;				\
+	uint64_t hash_key_buffer20[2];			\
+	uint64_t hash_key_buffer21[2];			\
+	uint32_t pos20, pos21;					\
+								\
+	key20 = RTE_MBUF_METADATA_UINT64_PTR(mbuf20, f->key_offset);\
+	key21 = RTE_MBUF_METADATA_UINT64_PTR(mbuf21, f->key_offset);\
+	hash_key_buffer20[0] = key20[0] & f->key_mask[0];	\
+	hash_key_buffer20[1] = key20[1] & f->key_mask[1];	\
+	hash_key_buffer21[0] = key21[0] & f->key_mask[0];	\
+	hash_key_buffer21[1] = key21[1] & f->key_mask[1];	\
+								\
+	lookup_key16_cmp(hash_key_buffer20, bucket20, pos20);	\
+	lookup_key16_cmp(hash_key_buffer21, bucket21, pos21);	\
+								\
+	pkt20_mask = (bucket20->signature[pos20] & 1LLU) << pkt20_index;\
+	pkt21_mask = (bucket21->signature[pos21] & 1LLU) << pkt21_index;\
+	pkts_mask_out |= pkt20_mask | pkt21_mask;		\
+								\
+	a20 = (void *) &bucket20->data[pos20 * f->entry_size];	\
+	a21 = (void *) &bucket21->data[pos21 * f->entry_size];	\
+	rte_prefetch0(a20);					\
+	rte_prefetch0(a21);					\
+	entries[pkt20_index] = a20;				\
+	entries[pkt21_index] = a21;				\
+								\
+	bucket20_mask = (~pkt20_mask) & (bucket20->next_valid << pkt20_index);\
+	bucket21_mask = (~pkt21_mask) & (bucket21->next_valid << pkt21_index);\
+	buckets_mask |= bucket20_mask | bucket21_mask;		\
+	bucket20_next = bucket20->next;				\
+	bucket21_next = bucket21->next;				\
+	buckets[pkt20_index] = bucket20_next;			\
+	buckets[pkt21_index] = bucket21_next;			\
+	keys[pkt20_index] = key20;				\
+	keys[pkt21_index] = key21;				\
+}
+
+static int
+rte_table_hash_lookup_key16_lru(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_16 *bucket10, *bucket11, *bucket20, *bucket21;
+	struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21;
+	uint32_t pkt00_index, pkt01_index, pkt10_index;
+	uint32_t pkt11_index, pkt20_index, pkt21_index;
+	uint64_t pkts_mask_out = 0;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_KEY16_STATS_PKTS_IN_ADD(f, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 5 packets */
+	if (__builtin_popcountll(pkts_mask) < 5) {
+		for ( ; pkts_mask; ) {
+			struct rte_bucket_4_16 *bucket;
+			struct rte_mbuf *mbuf;
+			uint32_t pkt_index;
+
+			lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f);
+			lookup1_stage1(mbuf, bucket, f);
+			lookup1_stage2_lru(pkt_index, mbuf, bucket,
+				pkts_mask_out, entries, f);
+		}
+
+		*lookup_hit_mask = pkts_mask_out;
+		RTE_TABLE_HASH_KEY16_STATS_PKTS_LOOKUP_MISS(f,
+			n_pkts_in - __builtin_popcountll(pkts_mask_out));
+		return 0;
+	}
+
+	/*
+	 * Pipeline fill
+	 *
+	 */
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline feed */
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/*
+	 * Pipeline run
+	 *
+	 */
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		bucket20 = bucket10;
+		bucket21 = bucket11;
+		mbuf20 = mbuf10;
+		mbuf21 = mbuf11;
+		mbuf10 = mbuf00;
+		mbuf11 = mbuf01;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,
+			mbuf00, mbuf01, pkts, pkts_mask, f);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,
+			bucket20, bucket21, pkts_mask_out, entries, f);
+	}
+
+	/*
+	 * Pipeline flush
+	 *
+	 */
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries, f);
+
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries, f);
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_KEY16_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in -
+		__builtin_popcountll(pkts_mask_out));
+	return 0;
+} /* rte_table_hash_lookup_key16_lru() */
+
+static int
+rte_table_hash_lookup_key16_lru_dosig(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_16 *bucket10, *bucket11, *bucket20, *bucket21;
+	struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21;
+	uint32_t pkt00_index, pkt01_index, pkt10_index;
+	uint32_t pkt11_index, pkt20_index, pkt21_index;
+	uint64_t pkts_mask_out = 0;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+
+	RTE_TABLE_HASH_KEY16_STATS_PKTS_IN_ADD(f, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 5 packets */
+	if (__builtin_popcountll(pkts_mask) < 5) {
+		for ( ; pkts_mask; ) {
+			struct rte_bucket_4_16 *bucket;
+			struct rte_mbuf *mbuf;
+			uint32_t pkt_index;
+
+			lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f);
+			lookup1_stage1_dosig(mbuf, bucket, f);
+			lookup1_stage2_lru(pkt_index, mbuf, bucket,
+				pkts_mask_out, entries, f);
+		}
+
+		*lookup_hit_mask = pkts_mask_out;
+		RTE_TABLE_HASH_KEY16_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in -
+			__builtin_popcountll(pkts_mask_out));
+		return 0;
+	}
+
+	/*
+	 * Pipeline fill
+	 *
+	 */
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline feed */
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/*
+	 * Pipeline run
+	 *
+	 */
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		bucket20 = bucket10;
+		bucket21 = bucket11;
+		mbuf20 = mbuf10;
+		mbuf21 = mbuf11;
+		mbuf10 = mbuf00;
+		mbuf11 = mbuf01;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,
+			mbuf00, mbuf01, pkts, pkts_mask, f);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,
+			bucket20, bucket21, pkts_mask_out, entries, f);
+	}
+
+	/*
+	 * Pipeline flush
+	 *
+	 */
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries, f);
+
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries, f);
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_KEY16_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in -
+		__builtin_popcountll(pkts_mask_out));
+	return 0;
+} /* rte_table_hash_lookup_key16_lru_dosig() */
+
+static int
+rte_table_hash_lookup_key16_ext(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_16 *bucket10, *bucket11, *bucket20, *bucket21;
+	struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21;
+	uint32_t pkt00_index, pkt01_index, pkt10_index;
+	uint32_t pkt11_index, pkt20_index, pkt21_index;
+	uint64_t pkts_mask_out = 0, buckets_mask = 0;
+	struct rte_bucket_4_16 *buckets[RTE_PORT_IN_BURST_SIZE_MAX];
+	uint64_t *keys[RTE_PORT_IN_BURST_SIZE_MAX];
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_KEY16_STATS_PKTS_IN_ADD(f, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 5 packets */
+	if (__builtin_popcountll(pkts_mask) < 5) {
+		for ( ; pkts_mask; ) {
+			struct rte_bucket_4_16 *bucket;
+			struct rte_mbuf *mbuf;
+			uint32_t pkt_index;
+
+			lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f);
+			lookup1_stage1(mbuf, bucket, f);
+			lookup1_stage2_ext(pkt_index, mbuf, bucket,
+				pkts_mask_out, entries, buckets_mask,
+				buckets, keys, f);
+		}
+
+		goto grind_next_buckets;
+	}
+
+	/*
+	 * Pipeline fill
+	 *
+	 */
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline feed */
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/*
+	 * Pipeline run
+	 *
+	 */
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		bucket20 = bucket10;
+		bucket21 = bucket11;
+		mbuf20 = mbuf10;
+		mbuf21 = mbuf11;
+		mbuf10 = mbuf00;
+		mbuf11 = mbuf01;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,
+			mbuf00, mbuf01, pkts, pkts_mask, f);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+			bucket20, bucket21, pkts_mask_out, entries,
+			buckets_mask, buckets, keys, f);
+	}
+
+	/*
+	 * Pipeline flush
+	 *
+	 */
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries,
+		buckets_mask, buckets, keys, f);
+
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries,
+		buckets_mask, buckets, keys, f);
+
+grind_next_buckets:
+	/* Grind next buckets */
+	for ( ; buckets_mask; ) {
+		uint64_t buckets_mask_next = 0;
+
+		for ( ; buckets_mask; ) {
+			uint64_t pkt_mask;
+			uint32_t pkt_index;
+
+			pkt_index = __builtin_ctzll(buckets_mask);
+			pkt_mask = 1LLU << pkt_index;
+			buckets_mask &= ~pkt_mask;
+
+			lookup_grinder(pkt_index, buckets, keys, pkts_mask_out,
+				entries, buckets_mask_next, f);
+		}
+
+		buckets_mask = buckets_mask_next;
+	}
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_KEY16_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in -
+		__builtin_popcountll(pkts_mask_out));
+	return 0;
+} /* rte_table_hash_lookup_key16_ext() */
+
+static int
+rte_table_hash_lookup_key16_ext_dosig(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_16 *bucket10, *bucket11, *bucket20, *bucket21;
+	struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21;
+	uint32_t pkt00_index, pkt01_index, pkt10_index;
+	uint32_t pkt11_index, pkt20_index, pkt21_index;
+	uint64_t pkts_mask_out = 0, buckets_mask = 0;
+	struct rte_bucket_4_16 *buckets[RTE_PORT_IN_BURST_SIZE_MAX];
+	uint64_t *keys[RTE_PORT_IN_BURST_SIZE_MAX];
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+
+	RTE_TABLE_HASH_KEY16_STATS_PKTS_IN_ADD(f, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 5 packets */
+	if (__builtin_popcountll(pkts_mask) < 5) {
+		for ( ; pkts_mask; ) {
+			struct rte_bucket_4_16 *bucket;
+			struct rte_mbuf *mbuf;
+			uint32_t pkt_index;
+
+			lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f);
+			lookup1_stage1_dosig(mbuf, bucket, f);
+			lookup1_stage2_ext(pkt_index, mbuf, bucket,
+				pkts_mask_out, entries, buckets_mask,
+				buckets, keys, f);
+		}
+
+		goto grind_next_buckets;
+	}
+
+	/*
+	 * Pipeline fill
+	 *
+	 */
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline feed */
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/*
+	 * Pipeline run
+	 *
+	 */
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		bucket20 = bucket10;
+		bucket21 = bucket11;
+		mbuf20 = mbuf10;
+		mbuf21 = mbuf11;
+		mbuf10 = mbuf00;
+		mbuf11 = mbuf01;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,
+			mbuf00, mbuf01, pkts, pkts_mask, f);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+			bucket20, bucket21, pkts_mask_out, entries,
+			buckets_mask, buckets, keys, f);
+	}
+
+	/*
+	 * Pipeline flush
+	 *
+	 */
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries,
+		buckets_mask, buckets, keys, f);
+
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries,
+		buckets_mask, buckets, keys, f);
+
+grind_next_buckets:
+	/* Grind next buckets */
+	for ( ; buckets_mask; ) {
+		uint64_t buckets_mask_next = 0;
+
+		for ( ; buckets_mask; ) {
+			uint64_t pkt_mask;
+			uint32_t pkt_index;
+
+			pkt_index = __builtin_ctzll(buckets_mask);
+			pkt_mask = 1LLU << pkt_index;
+			buckets_mask &= ~pkt_mask;
+
+			lookup_grinder(pkt_index, buckets, keys, pkts_mask_out,
+				entries, buckets_mask_next, f);
+		}
+
+		buckets_mask = buckets_mask_next;
+	}
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_KEY16_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in -
+		__builtin_popcountll(pkts_mask_out));
+	return 0;
+} /* rte_table_hash_lookup_key16_ext_dosig() */
+
+static int
+rte_table_hash_key16_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+
+	if (stats != NULL)
+		memcpy(stats, &t->stats, sizeof(t->stats));
+
+	if (clear)
+		memset(&t->stats, 0, sizeof(t->stats));
+
+	return 0;
+}
+
+struct rte_table_ops rte_table_hash_key16_lru_ops = {
+	.f_create = rte_table_hash_create_key16_lru,
+	.f_free = rte_table_hash_free_key16_lru,
+	.f_add = rte_table_hash_entry_add_key16_lru,
+	.f_delete = rte_table_hash_entry_delete_key16_lru,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_hash_lookup_key16_lru,
+	.f_stats = rte_table_hash_key16_stats_read,
+};
+
+struct rte_table_ops rte_table_hash_key16_lru_dosig_ops = {
+	.f_create = rte_table_hash_create_key16_lru,
+	.f_free = rte_table_hash_free_key16_lru,
+	.f_add = rte_table_hash_entry_add_key16_lru,
+	.f_delete = rte_table_hash_entry_delete_key16_lru,
+	.f_lookup = rte_table_hash_lookup_key16_lru_dosig,
+	.f_stats = rte_table_hash_key16_stats_read,
+};
+
+struct rte_table_ops rte_table_hash_key16_ext_ops = {
+	.f_create = rte_table_hash_create_key16_ext,
+	.f_free = rte_table_hash_free_key16_ext,
+	.f_add = rte_table_hash_entry_add_key16_ext,
+	.f_delete = rte_table_hash_entry_delete_key16_ext,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_hash_lookup_key16_ext,
+	.f_stats = rte_table_hash_key16_stats_read,
+};
+
+struct rte_table_ops rte_table_hash_key16_ext_dosig_ops = {
+	.f_create = rte_table_hash_create_key16_ext,
+	.f_free = rte_table_hash_free_key16_ext,
+	.f_add = rte_table_hash_entry_add_key16_ext,
+	.f_delete = rte_table_hash_entry_delete_key16_ext,
+	.f_lookup = rte_table_hash_lookup_key16_ext_dosig,
+	.f_stats = rte_table_hash_key16_stats_read,
+};
diff --git a/lib/librte_table/rte_table_hash_key32.c b/lib/librte_table/rte_table_hash_key32.c
new file mode 100644
index 00000000..a7aba492
--- /dev/null
+++ b/lib/librte_table/rte_table_hash_key32.c
@@ -0,0 +1,1144 @@
+/*-
+ *	 BSD LICENSE
+ *
+ *	 Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *	 All rights reserved.
+ *
+ *	 Redistribution and use in source and binary forms, with or without
+ *	 modification, are permitted provided that the following conditions
+ *	 are met:
+ *
+ *	* Redistributions of source code must retain the above copyright
+ *		 notice, this list of conditions and the following disclaimer.
+ *	* Redistributions in binary form must reproduce the above copyright
+ *		 notice, this list of conditions and the following disclaimer in
+ *		 the documentation and/or other materials provided with the
+ *		 distribution.
+ *	* Neither the name of Intel Corporation nor the names of its
+ *		 contributors may be used to endorse or promote products derived
+ *		 from this software without specific prior written permission.
+ *
+ *	 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *	 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *	 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *	 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *	 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *	 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *	 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *	 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *	 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *	 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *	 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <string.h>
+#include <stdio.h>
+
+#include <rte_common.h>
+#include <rte_mbuf.h>
+#include <rte_memory.h>
+#include <rte_malloc.h>
+#include <rte_log.h>
+
+#include "rte_table_hash.h"
+#include "rte_lru.h"
+
+#define RTE_TABLE_HASH_KEY_SIZE						32
+
+#define RTE_BUCKET_ENTRY_VALID						0x1LLU
+
+#ifdef RTE_TABLE_STATS_COLLECT
+
+#define RTE_TABLE_HASH_KEY32_STATS_PKTS_IN_ADD(table, val) \
+	table->stats.n_pkts_in += val
+#define RTE_TABLE_HASH_KEY32_STATS_PKTS_LOOKUP_MISS(table, val) \
+	table->stats.n_pkts_lookup_miss += val
+
+#else
+
+#define RTE_TABLE_HASH_KEY32_STATS_PKTS_IN_ADD(table, val)
+#define RTE_TABLE_HASH_KEY32_STATS_PKTS_LOOKUP_MISS(table, val)
+
+#endif
+
+struct rte_bucket_4_32 {
+	/* Cache line 0 */
+	uint64_t signature[4 + 1];
+	uint64_t lru_list;
+	struct rte_bucket_4_32 *next;
+	uint64_t next_valid;
+
+	/* Cache lines 1 and 2 */
+	uint64_t key[4][4];
+
+	/* Cache line 3 */
+	uint8_t data[0];
+};
+
+struct rte_table_hash {
+	struct rte_table_stats stats;
+
+	/* Input parameters */
+	uint32_t n_buckets;
+	uint32_t n_entries_per_bucket;
+	uint32_t key_size;
+	uint32_t entry_size;
+	uint32_t bucket_size;
+	uint32_t signature_offset;
+	uint32_t key_offset;
+	rte_table_hash_op_hash f_hash;
+	uint64_t seed;
+
+	/* Extendible buckets */
+	uint32_t n_buckets_ext;
+	uint32_t stack_pos;
+	uint32_t *stack;
+
+	/* Lookup table */
+	uint8_t memory[0] __rte_cache_aligned;
+};
+
+static int
+check_params_create_lru(struct rte_table_hash_key32_lru_params *params) {
+	/* n_entries */
+	if (params->n_entries == 0) {
+		RTE_LOG(ERR, TABLE, "%s: n_entries is zero\n", __func__);
+		return -EINVAL;
+	}
+
+	/* f_hash */
+	if (params->f_hash == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: f_hash function pointer is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void *
+rte_table_hash_create_key32_lru(void *params,
+		int socket_id,
+		uint32_t entry_size)
+{
+	struct rte_table_hash_key32_lru_params *p =
+		(struct rte_table_hash_key32_lru_params *) params;
+	struct rte_table_hash *f;
+	uint32_t n_buckets, n_entries_per_bucket, key_size, bucket_size_cl;
+	uint32_t total_size, i;
+
+	/* Check input parameters */
+	if ((check_params_create_lru(p) != 0) ||
+		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
+		((sizeof(struct rte_bucket_4_32) % RTE_CACHE_LINE_SIZE) != 0)) {
+		return NULL;
+	}
+	n_entries_per_bucket = 4;
+	key_size = 32;
+
+	/* Memory allocation */
+	n_buckets = rte_align32pow2((p->n_entries + n_entries_per_bucket - 1) /
+		n_entries_per_bucket);
+	bucket_size_cl = (sizeof(struct rte_bucket_4_32) + n_entries_per_bucket
+		* entry_size + RTE_CACHE_LINE_SIZE - 1) / RTE_CACHE_LINE_SIZE;
+	total_size = sizeof(struct rte_table_hash) + n_buckets *
+		bucket_size_cl * RTE_CACHE_LINE_SIZE;
+
+	f = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE, socket_id);
+	if (f == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot allocate %u bytes for hash table\n",
+			__func__, total_size);
+		return NULL;
+	}
+	RTE_LOG(INFO, TABLE,
+		"%s: Hash table memory footprint is %u bytes\n", __func__,
+		total_size);
+
+	/* Memory initialization */
+	f->n_buckets = n_buckets;
+	f->n_entries_per_bucket = n_entries_per_bucket;
+	f->key_size = key_size;
+	f->entry_size = entry_size;
+	f->bucket_size = bucket_size_cl * RTE_CACHE_LINE_SIZE;
+	f->signature_offset = p->signature_offset;
+	f->key_offset = p->key_offset;
+	f->f_hash = p->f_hash;
+	f->seed = p->seed;
+
+	for (i = 0; i < n_buckets; i++) {
+		struct rte_bucket_4_32 *bucket;
+
+		bucket = (struct rte_bucket_4_32 *) &f->memory[i *
+			f->bucket_size];
+		bucket->lru_list = 0x0000000100020003LLU;
+	}
+
+	return f;
+}
+
+static int
+rte_table_hash_free_key32_lru(void *table)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+
+	/* Check input parameters */
+	if (f == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	rte_free(f);
+	return 0;
+}
+
+static int
+rte_table_hash_entry_add_key32_lru(
+	void *table,
+	void *key,
+	void *entry,
+	int *key_found,
+	void **entry_ptr)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_32 *bucket;
+	uint64_t signature, pos;
+	uint32_t bucket_index, i;
+
+	signature = f->f_hash(key, f->key_size, f->seed);
+	bucket_index = signature & (f->n_buckets - 1);
+	bucket = (struct rte_bucket_4_32 *)
+		&f->memory[bucket_index * f->bucket_size];
+	signature |= RTE_BUCKET_ENTRY_VALID;
+
+	/* Key is present in the bucket */
+	for (i = 0; i < 4; i++) {
+		uint64_t bucket_signature = bucket->signature[i];
+		uint8_t *bucket_key = (uint8_t *) bucket->key[i];
+
+		if ((bucket_signature == signature) &&
+			(memcmp(key, bucket_key, f->key_size) == 0)) {
+			uint8_t *bucket_data = &bucket->data[i * f->entry_size];
+
+			memcpy(bucket_data, entry, f->entry_size);
+			lru_update(bucket, i);
+			*key_found = 1;
+			*entry_ptr = (void *) bucket_data;
+			return 0;
+		}
+	}
+
+	/* Key is not present in the bucket */
+	for (i = 0; i < 4; i++) {
+		uint64_t bucket_signature = bucket->signature[i];
+		uint8_t *bucket_key = (uint8_t *) bucket->key[i];
+
+		if (bucket_signature == 0) {
+			uint8_t *bucket_data = &bucket->data[i * f->entry_size];
+
+			bucket->signature[i] = signature;
+			memcpy(bucket_key, key, f->key_size);
+			memcpy(bucket_data, entry, f->entry_size);
+			lru_update(bucket, i);
+			*key_found = 0;
+			*entry_ptr = (void *) bucket_data;
+
+			return 0;
+		}
+	}
+
+	/* Bucket full: replace LRU entry */
+	pos = lru_pos(bucket);
+	bucket->signature[pos] = signature;
+	memcpy(bucket->key[pos], key, f->key_size);
+	memcpy(&bucket->data[pos * f->entry_size], entry, f->entry_size);
+	lru_update(bucket, pos);
+	*key_found	= 0;
+	*entry_ptr = (void *) &bucket->data[pos * f->entry_size];
+
+	return 0;
+}
+
+static int
+rte_table_hash_entry_delete_key32_lru(
+	void *table,
+	void *key,
+	int *key_found,
+	void *entry)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_32 *bucket;
+	uint64_t signature;
+	uint32_t bucket_index, i;
+
+	signature = f->f_hash(key, f->key_size, f->seed);
+	bucket_index = signature & (f->n_buckets - 1);
+	bucket = (struct rte_bucket_4_32 *)
+		&f->memory[bucket_index * f->bucket_size];
+	signature |= RTE_BUCKET_ENTRY_VALID;
+
+	/* Key is present in the bucket */
+	for (i = 0; i < 4; i++) {
+		uint64_t bucket_signature = bucket->signature[i];
+		uint8_t *bucket_key = (uint8_t *) bucket->key[i];
+
+		if ((bucket_signature == signature) &&
+			(memcmp(key, bucket_key, f->key_size) == 0)) {
+			uint8_t *bucket_data = &bucket->data[i * f->entry_size];
+
+			bucket->signature[i] = 0;
+			*key_found = 1;
+			if (entry)
+				memcpy(entry, bucket_data, f->entry_size);
+
+			return 0;
+		}
+	}
+
+	/* Key is not present in the bucket */
+	*key_found = 0;
+	return 0;
+}
+
+static int
+check_params_create_ext(struct rte_table_hash_key32_ext_params *params) {
+	/* n_entries */
+	if (params->n_entries == 0) {
+		RTE_LOG(ERR, TABLE, "%s: n_entries is zero\n", __func__);
+		return -EINVAL;
+	}
+
+	/* n_entries_ext */
+	if (params->n_entries_ext == 0) {
+		RTE_LOG(ERR, TABLE, "%s: n_entries_ext is zero\n", __func__);
+		return -EINVAL;
+	}
+
+	/* f_hash */
+	if (params->f_hash == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: f_hash function pointer is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void *
+rte_table_hash_create_key32_ext(void *params,
+	int socket_id,
+	uint32_t entry_size)
+{
+	struct rte_table_hash_key32_ext_params *p =
+			(struct rte_table_hash_key32_ext_params *) params;
+	struct rte_table_hash *f;
+	uint32_t n_buckets, n_buckets_ext, n_entries_per_bucket;
+	uint32_t key_size, bucket_size_cl, stack_size_cl, total_size, i;
+
+	/* Check input parameters */
+	if ((check_params_create_ext(p) != 0) ||
+		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
+		((sizeof(struct rte_bucket_4_32) % RTE_CACHE_LINE_SIZE) != 0))
+		return NULL;
+
+	n_entries_per_bucket = 4;
+	key_size = 32;
+
+	/* Memory allocation */
+	n_buckets = rte_align32pow2((p->n_entries + n_entries_per_bucket - 1) /
+		n_entries_per_bucket);
+	n_buckets_ext = (p->n_entries_ext + n_entries_per_bucket - 1) /
+		n_entries_per_bucket;
+	bucket_size_cl = (sizeof(struct rte_bucket_4_32) + n_entries_per_bucket
+		* entry_size + RTE_CACHE_LINE_SIZE - 1) / RTE_CACHE_LINE_SIZE;
+	stack_size_cl = (n_buckets_ext * sizeof(uint32_t) + RTE_CACHE_LINE_SIZE - 1)
+		/ RTE_CACHE_LINE_SIZE;
+	total_size = sizeof(struct rte_table_hash) +
+		((n_buckets + n_buckets_ext) * bucket_size_cl + stack_size_cl) *
+		RTE_CACHE_LINE_SIZE;
+
+	f = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE, socket_id);
+	if (f == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot allocate %u bytes for hash table\n",
+			__func__, total_size);
+		return NULL;
+	}
+	RTE_LOG(INFO, TABLE,
+		"%s: Hash table memory footprint is %u bytes\n", __func__,
+		total_size);
+
+	/* Memory initialization */
+	f->n_buckets = n_buckets;
+	f->n_entries_per_bucket = n_entries_per_bucket;
+	f->key_size = key_size;
+	f->entry_size = entry_size;
+	f->bucket_size = bucket_size_cl * RTE_CACHE_LINE_SIZE;
+	f->signature_offset = p->signature_offset;
+	f->key_offset = p->key_offset;
+	f->f_hash = p->f_hash;
+	f->seed = p->seed;
+
+	f->n_buckets_ext = n_buckets_ext;
+	f->stack_pos = n_buckets_ext;
+	f->stack = (uint32_t *)
+		&f->memory[(n_buckets + n_buckets_ext) * f->bucket_size];
+
+	for (i = 0; i < n_buckets_ext; i++)
+		f->stack[i] = i;
+
+	return f;
+}
+
+static int
+rte_table_hash_free_key32_ext(void *table)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+
+	/* Check input parameters */
+	if (f == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	rte_free(f);
+	return 0;
+}
+
+static int
+rte_table_hash_entry_add_key32_ext(
+	void *table,
+	void *key,
+	void *entry,
+	int *key_found,
+	void **entry_ptr)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_32 *bucket0, *bucket, *bucket_prev;
+	uint64_t signature;
+	uint32_t bucket_index, i;
+
+	signature = f->f_hash(key, f->key_size, f->seed);
+	bucket_index = signature & (f->n_buckets - 1);
+	bucket0 = (struct rte_bucket_4_32 *)
+			&f->memory[bucket_index * f->bucket_size];
+	signature |= RTE_BUCKET_ENTRY_VALID;
+
+	/* Key is present in the bucket */
+	for (bucket = bucket0; bucket != NULL; bucket = bucket->next) {
+		for (i = 0; i < 4; i++) {
+			uint64_t bucket_signature = bucket->signature[i];
+			uint8_t *bucket_key = (uint8_t *) bucket->key[i];
+
+			if ((bucket_signature == signature) &&
+				(memcmp(key, bucket_key, f->key_size) == 0)) {
+				uint8_t *bucket_data = &bucket->data[i *
+					f->entry_size];
+
+				memcpy(bucket_data, entry, f->entry_size);
+				*key_found = 1;
+				*entry_ptr = (void *) bucket_data;
+
+				return 0;
+			}
+		}
+	}
+
+	/* Key is not present in the bucket */
+	for (bucket_prev = NULL, bucket = bucket0; bucket != NULL;
+		bucket_prev = bucket, bucket = bucket->next)
+		for (i = 0; i < 4; i++) {
+			uint64_t bucket_signature = bucket->signature[i];
+			uint8_t *bucket_key = (uint8_t *) bucket->key[i];
+
+			if (bucket_signature == 0) {
+				uint8_t *bucket_data = &bucket->data[i *
+					f->entry_size];
+
+				bucket->signature[i] = signature;
+				memcpy(bucket_key, key, f->key_size);
+				memcpy(bucket_data, entry, f->entry_size);
+				*key_found = 0;
+				*entry_ptr = (void *) bucket_data;
+
+				return 0;
+			}
+		}
+
+	/* Bucket full: extend bucket */
+	if (f->stack_pos > 0) {
+		bucket_index = f->stack[--f->stack_pos];
+
+		bucket = (struct rte_bucket_4_32 *)
+			&f->memory[(f->n_buckets + bucket_index) *
+			f->bucket_size];
+		bucket_prev->next = bucket;
+		bucket_prev->next_valid = 1;
+
+		bucket->signature[0] = signature;
+		memcpy(bucket->key[0], key, f->key_size);
+		memcpy(&bucket->data[0], entry, f->entry_size);
+		*key_found = 0;
+		*entry_ptr = (void *) &bucket->data[0];
+		return 0;
+	}
+
+	return -ENOSPC;
+}
+
+static int
+rte_table_hash_entry_delete_key32_ext(
+	void *table,
+	void *key,
+	int *key_found,
+	void *entry)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_32 *bucket0, *bucket, *bucket_prev;
+	uint64_t signature;
+	uint32_t bucket_index, i;
+
+	signature = f->f_hash(key, f->key_size, f->seed);
+	bucket_index = signature & (f->n_buckets - 1);
+	bucket0 = (struct rte_bucket_4_32 *)
+		&f->memory[bucket_index * f->bucket_size];
+	signature |= RTE_BUCKET_ENTRY_VALID;
+
+	/* Key is present in the bucket */
+	for (bucket_prev = NULL, bucket = bucket0; bucket != NULL;
+		bucket_prev = bucket, bucket = bucket->next)
+		for (i = 0; i < 4; i++) {
+			uint64_t bucket_signature = bucket->signature[i];
+			uint8_t *bucket_key = (uint8_t *) bucket->key[i];
+
+			if ((bucket_signature == signature) &&
+				(memcmp(key, bucket_key, f->key_size) == 0)) {
+				uint8_t *bucket_data = &bucket->data[i *
+					f->entry_size];
+
+				bucket->signature[i] = 0;
+				*key_found = 1;
+				if (entry)
+					memcpy(entry, bucket_data,
+						f->entry_size);
+
+				if ((bucket->signature[0] == 0) &&
+						(bucket->signature[1] == 0) &&
+						(bucket->signature[2] == 0) &&
+						(bucket->signature[3] == 0) &&
+						(bucket_prev != NULL)) {
+					bucket_prev->next = bucket->next;
+					bucket_prev->next_valid =
+						bucket->next_valid;
+
+					memset(bucket, 0,
+						sizeof(struct rte_bucket_4_32));
+					bucket_index = (((uint8_t *)bucket -
+						(uint8_t *)f->memory)/f->bucket_size) - f->n_buckets;
+					f->stack[f->stack_pos++] = bucket_index;
+				}
+
+				return 0;
+			}
+		}
+
+	/* Key is not present in the bucket */
+	*key_found = 0;
+	return 0;
+}
+
+#define lookup_key32_cmp(key_in, bucket, pos)			\
+{								\
+	uint64_t xor[4][4], or[4], signature[4];		\
+								\
+	signature[0] = ((~bucket->signature[0]) & 1);		\
+	signature[1] = ((~bucket->signature[1]) & 1);		\
+	signature[2] = ((~bucket->signature[2]) & 1);		\
+	signature[3] = ((~bucket->signature[3]) & 1);		\
+								\
+	xor[0][0] = key_in[0] ^	 bucket->key[0][0];		\
+	xor[0][1] = key_in[1] ^	 bucket->key[0][1];		\
+	xor[0][2] = key_in[2] ^	 bucket->key[0][2];		\
+	xor[0][3] = key_in[3] ^	 bucket->key[0][3];		\
+								\
+	xor[1][0] = key_in[0] ^	 bucket->key[1][0];		\
+	xor[1][1] = key_in[1] ^	 bucket->key[1][1];		\
+	xor[1][2] = key_in[2] ^	 bucket->key[1][2];		\
+	xor[1][3] = key_in[3] ^	 bucket->key[1][3];		\
+								\
+	xor[2][0] = key_in[0] ^	 bucket->key[2][0];		\
+	xor[2][1] = key_in[1] ^	 bucket->key[2][1];		\
+	xor[2][2] = key_in[2] ^	 bucket->key[2][2];		\
+	xor[2][3] = key_in[3] ^	 bucket->key[2][3];		\
+								\
+	xor[3][0] = key_in[0] ^	 bucket->key[3][0];		\
+	xor[3][1] = key_in[1] ^	 bucket->key[3][1];		\
+	xor[3][2] = key_in[2] ^	 bucket->key[3][2];		\
+	xor[3][3] = key_in[3] ^	 bucket->key[3][3];		\
+								\
+	or[0] = xor[0][0] | xor[0][1] | xor[0][2] | xor[0][3] | signature[0];\
+	or[1] = xor[1][0] | xor[1][1] | xor[1][2] | xor[1][3] | signature[1];\
+	or[2] = xor[2][0] | xor[2][1] | xor[2][2] | xor[2][3] | signature[2];\
+	or[3] = xor[3][0] | xor[3][1] | xor[3][2] | xor[3][3] | signature[3];\
+								\
+	pos = 4;						\
+	if (or[0] == 0)						\
+		pos = 0;					\
+	if (or[1] == 0)						\
+		pos = 1;					\
+	if (or[2] == 0)						\
+		pos = 2;					\
+	if (or[3] == 0)						\
+		pos = 3;					\
+}
+
+#define lookup1_stage0(pkt0_index, mbuf0, pkts, pkts_mask, f)	\
+{								\
+	uint64_t pkt_mask;					\
+	uint32_t key_offset = f->key_offset;	\
+								\
+	pkt0_index = __builtin_ctzll(pkts_mask);		\
+	pkt_mask = 1LLU << pkt0_index;				\
+	pkts_mask &= ~pkt_mask;					\
+								\
+	mbuf0 = pkts[pkt0_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf0, key_offset));\
+}
+
+#define lookup1_stage1(mbuf1, bucket1, f)			\
+{								\
+	uint64_t signature;					\
+	uint32_t bucket_index;					\
+								\
+	signature = RTE_MBUF_METADATA_UINT32(mbuf1, f->signature_offset);\
+	bucket_index = signature & (f->n_buckets - 1);		\
+	bucket1 = (struct rte_bucket_4_32 *)			\
+		&f->memory[bucket_index * f->bucket_size];	\
+	rte_prefetch0(bucket1);					\
+	rte_prefetch0((void *)(((uintptr_t) bucket1) + RTE_CACHE_LINE_SIZE));\
+	rte_prefetch0((void *)(((uintptr_t) bucket1) + 2 * RTE_CACHE_LINE_SIZE));\
+}
+
+#define lookup1_stage2_lru(pkt2_index, mbuf2, bucket2,		\
+	pkts_mask_out, entries, f)				\
+{								\
+	void *a;						\
+	uint64_t pkt_mask;					\
+	uint64_t *key;						\
+	uint32_t pos;						\
+								\
+	key = RTE_MBUF_METADATA_UINT64_PTR(mbuf2, f->key_offset);\
+								\
+	lookup_key32_cmp(key, bucket2, pos);			\
+								\
+	pkt_mask = (bucket2->signature[pos] & 1LLU) << pkt2_index;\
+	pkts_mask_out |= pkt_mask;				\
+								\
+	a = (void *) &bucket2->data[pos * f->entry_size];	\
+	rte_prefetch0(a);					\
+	entries[pkt2_index] = a;				\
+	lru_update(bucket2, pos);				\
+}
+
+#define lookup1_stage2_ext(pkt2_index, mbuf2, bucket2, pkts_mask_out,\
+	entries, buckets_mask, buckets, keys, f)		\
+{								\
+	struct rte_bucket_4_32 *bucket_next;			\
+	void *a;						\
+	uint64_t pkt_mask, bucket_mask;				\
+	uint64_t *key;						\
+	uint32_t pos;						\
+								\
+	key = RTE_MBUF_METADATA_UINT64_PTR(mbuf2, f->key_offset);\
+								\
+	lookup_key32_cmp(key, bucket2, pos);			\
+								\
+	pkt_mask = (bucket2->signature[pos] & 1LLU) << pkt2_index;\
+	pkts_mask_out |= pkt_mask;				\
+								\
+	a = (void *) &bucket2->data[pos * f->entry_size];	\
+	rte_prefetch0(a);					\
+	entries[pkt2_index] = a;				\
+								\
+	bucket_mask = (~pkt_mask) & (bucket2->next_valid << pkt2_index);\
+	buckets_mask |= bucket_mask;				\
+	bucket_next = bucket2->next;				\
+	buckets[pkt2_index] = bucket_next;			\
+	keys[pkt2_index] = key;					\
+}
+
+#define lookup_grinder(pkt_index, buckets, keys, pkts_mask_out,	\
+	entries, buckets_mask, f)				\
+{								\
+	struct rte_bucket_4_32 *bucket, *bucket_next;		\
+	void *a;						\
+	uint64_t pkt_mask, bucket_mask;				\
+	uint64_t *key;						\
+	uint32_t pos;						\
+								\
+	bucket = buckets[pkt_index];				\
+	key = keys[pkt_index];					\
+								\
+	lookup_key32_cmp(key, bucket, pos);			\
+								\
+	pkt_mask = (bucket->signature[pos] & 1LLU) << pkt_index;\
+	pkts_mask_out |= pkt_mask;				\
+								\
+	a = (void *) &bucket->data[pos * f->entry_size];	\
+	rte_prefetch0(a);					\
+	entries[pkt_index] = a;					\
+								\
+	bucket_mask = (~pkt_mask) & (bucket->next_valid << pkt_index);\
+	buckets_mask |= bucket_mask;				\
+	bucket_next = bucket->next;				\
+	rte_prefetch0(bucket_next);				\
+	rte_prefetch0((void *)(((uintptr_t) bucket_next) + RTE_CACHE_LINE_SIZE));\
+	rte_prefetch0((void *)(((uintptr_t) bucket_next) +	\
+		2 * RTE_CACHE_LINE_SIZE));				\
+	buckets[pkt_index] = bucket_next;			\
+	keys[pkt_index] = key;					\
+}
+
+#define lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01,\
+	pkts, pkts_mask, f)					\
+{								\
+	uint64_t pkt00_mask, pkt01_mask;			\
+	uint32_t key_offset = f->key_offset;		\
+								\
+	pkt00_index = __builtin_ctzll(pkts_mask);		\
+	pkt00_mask = 1LLU << pkt00_index;			\
+	pkts_mask &= ~pkt00_mask;				\
+								\
+	mbuf00 = pkts[pkt00_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf00, key_offset));\
+								\
+	pkt01_index = __builtin_ctzll(pkts_mask);		\
+	pkt01_mask = 1LLU << pkt01_index;			\
+	pkts_mask &= ~pkt01_mask;				\
+								\
+	mbuf01 = pkts[pkt01_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf01, key_offset));\
+}
+
+#define lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,\
+	mbuf00, mbuf01, pkts, pkts_mask, f)			\
+{								\
+	uint64_t pkt00_mask, pkt01_mask;			\
+	uint32_t key_offset = f->key_offset;		\
+								\
+	pkt00_index = __builtin_ctzll(pkts_mask);		\
+	pkt00_mask = 1LLU << pkt00_index;			\
+	pkts_mask &= ~pkt00_mask;				\
+								\
+	mbuf00 = pkts[pkt00_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf00, key_offset));	\
+								\
+	pkt01_index = __builtin_ctzll(pkts_mask);		\
+	if (pkts_mask == 0)					\
+		pkt01_index = pkt00_index;			\
+								\
+	pkt01_mask = 1LLU << pkt01_index;			\
+	pkts_mask &= ~pkt01_mask;				\
+								\
+	mbuf01 = pkts[pkt01_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf01, key_offset));	\
+}
+
+#define lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f)	\
+{								\
+	uint64_t signature10, signature11;			\
+	uint32_t bucket10_index, bucket11_index;		\
+								\
+	signature10 = RTE_MBUF_METADATA_UINT32(mbuf10, f->signature_offset);\
+	bucket10_index = signature10 & (f->n_buckets - 1);	\
+	bucket10 = (struct rte_bucket_4_32 *)			\
+		&f->memory[bucket10_index * f->bucket_size];	\
+	rte_prefetch0(bucket10);				\
+	rte_prefetch0((void *)(((uintptr_t) bucket10) + RTE_CACHE_LINE_SIZE));\
+	rte_prefetch0((void *)(((uintptr_t) bucket10) + 2 * RTE_CACHE_LINE_SIZE));\
+								\
+	signature11 = RTE_MBUF_METADATA_UINT32(mbuf11, f->signature_offset);\
+	bucket11_index = signature11 & (f->n_buckets - 1);	\
+	bucket11 = (struct rte_bucket_4_32 *)			\
+		&f->memory[bucket11_index * f->bucket_size];	\
+	rte_prefetch0(bucket11);				\
+	rte_prefetch0((void *)(((uintptr_t) bucket11) + RTE_CACHE_LINE_SIZE));\
+	rte_prefetch0((void *)(((uintptr_t) bucket11) + 2 * RTE_CACHE_LINE_SIZE));\
+}
+
+#define lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,\
+	bucket20, bucket21, pkts_mask_out, entries, f)		\
+{								\
+	void *a20, *a21;					\
+	uint64_t pkt20_mask, pkt21_mask;			\
+	uint64_t *key20, *key21;				\
+	uint32_t pos20, pos21;					\
+								\
+	key20 = RTE_MBUF_METADATA_UINT64_PTR(mbuf20, f->key_offset);\
+	key21 = RTE_MBUF_METADATA_UINT64_PTR(mbuf21, f->key_offset);\
+								\
+	lookup_key32_cmp(key20, bucket20, pos20);		\
+	lookup_key32_cmp(key21, bucket21, pos21);		\
+								\
+	pkt20_mask = (bucket20->signature[pos20] & 1LLU) << pkt20_index;\
+	pkt21_mask = (bucket21->signature[pos21] & 1LLU) << pkt21_index;\
+	pkts_mask_out |= pkt20_mask | pkt21_mask;		\
+								\
+	a20 = (void *) &bucket20->data[pos20 * f->entry_size];	\
+	a21 = (void *) &bucket21->data[pos21 * f->entry_size];	\
+	rte_prefetch0(a20);					\
+	rte_prefetch0(a21);					\
+	entries[pkt20_index] = a20;				\
+	entries[pkt21_index] = a21;				\
+	lru_update(bucket20, pos20);				\
+	lru_update(bucket21, pos21);				\
+}
+
+#define lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21, bucket20, \
+	bucket21, pkts_mask_out, entries, buckets_mask, buckets, keys, f)\
+{								\
+	struct rte_bucket_4_32 *bucket20_next, *bucket21_next;	\
+	void *a20, *a21;					\
+	uint64_t pkt20_mask, pkt21_mask, bucket20_mask, bucket21_mask;\
+	uint64_t *key20, *key21;				\
+	uint32_t pos20, pos21;					\
+								\
+	key20 = RTE_MBUF_METADATA_UINT64_PTR(mbuf20, f->key_offset);\
+	key21 = RTE_MBUF_METADATA_UINT64_PTR(mbuf21, f->key_offset);\
+								\
+	lookup_key32_cmp(key20, bucket20, pos20);		\
+	lookup_key32_cmp(key21, bucket21, pos21);		\
+								\
+	pkt20_mask = (bucket20->signature[pos20] & 1LLU) << pkt20_index;\
+	pkt21_mask = (bucket21->signature[pos21] & 1LLU) << pkt21_index;\
+	pkts_mask_out |= pkt20_mask | pkt21_mask;		\
+								\
+	a20 = (void *) &bucket20->data[pos20 * f->entry_size];	\
+	a21 = (void *) &bucket21->data[pos21 * f->entry_size];	\
+	rte_prefetch0(a20);					\
+	rte_prefetch0(a21);					\
+	entries[pkt20_index] = a20;				\
+	entries[pkt21_index] = a21;				\
+								\
+	bucket20_mask = (~pkt20_mask) & (bucket20->next_valid << pkt20_index);\
+	bucket21_mask = (~pkt21_mask) & (bucket21->next_valid << pkt21_index);\
+	buckets_mask |= bucket20_mask | bucket21_mask;		\
+	bucket20_next = bucket20->next;				\
+	bucket21_next = bucket21->next;				\
+	buckets[pkt20_index] = bucket20_next;			\
+	buckets[pkt21_index] = bucket21_next;			\
+	keys[pkt20_index] = key20;				\
+	keys[pkt21_index] = key21;				\
+}
+
+static int
+rte_table_hash_lookup_key32_lru(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_32 *bucket10, *bucket11, *bucket20, *bucket21;
+	struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21;
+	uint32_t pkt00_index, pkt01_index, pkt10_index;
+	uint32_t pkt11_index, pkt20_index, pkt21_index;
+	uint64_t pkts_mask_out = 0;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_KEY32_STATS_PKTS_IN_ADD(f, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 5 packets */
+	if (__builtin_popcountll(pkts_mask) < 5) {
+		for ( ; pkts_mask; ) {
+			struct rte_bucket_4_32 *bucket;
+			struct rte_mbuf *mbuf;
+			uint32_t pkt_index;
+
+			lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f);
+			lookup1_stage1(mbuf, bucket, f);
+			lookup1_stage2_lru(pkt_index, mbuf, bucket,
+					pkts_mask_out, entries, f);
+		}
+
+		*lookup_hit_mask = pkts_mask_out;
+		RTE_TABLE_HASH_KEY32_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+		return 0;
+	}
+
+	/*
+	 * Pipeline fill
+	 *
+	 */
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline feed */
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/*
+	 * Pipeline run
+	 *
+	 */
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		bucket20 = bucket10;
+		bucket21 = bucket11;
+		mbuf20 = mbuf10;
+		mbuf21 = mbuf11;
+		mbuf10 = mbuf00;
+		mbuf11 = mbuf01;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,
+			mbuf00, mbuf01, pkts, pkts_mask, f);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2_lru(pkt20_index, pkt21_index,
+			mbuf20, mbuf21, bucket20, bucket21, pkts_mask_out,
+			entries, f);
+	}
+
+	/*
+	 * Pipeline flush
+	 *
+	 */
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_lru(pkt20_index, pkt21_index,
+		mbuf20, mbuf21, bucket20, bucket21, pkts_mask_out, entries, f);
+
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_lru(pkt20_index, pkt21_index,
+		mbuf20, mbuf21, bucket20, bucket21, pkts_mask_out, entries, f);
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_KEY32_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+	return 0;
+} /* rte_table_hash_lookup_key32_lru() */
+
+static int
+rte_table_hash_lookup_key32_ext(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_32 *bucket10, *bucket11, *bucket20, *bucket21;
+	struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21;
+	uint32_t pkt00_index, pkt01_index, pkt10_index;
+	uint32_t pkt11_index, pkt20_index, pkt21_index;
+	uint64_t pkts_mask_out = 0, buckets_mask = 0;
+	struct rte_bucket_4_32 *buckets[RTE_PORT_IN_BURST_SIZE_MAX];
+	uint64_t *keys[RTE_PORT_IN_BURST_SIZE_MAX];
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_KEY32_STATS_PKTS_IN_ADD(f, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 5 packets */
+	if (__builtin_popcountll(pkts_mask) < 5) {
+		for ( ; pkts_mask; ) {
+			struct rte_bucket_4_32 *bucket;
+			struct rte_mbuf *mbuf;
+			uint32_t pkt_index;
+
+			lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f);
+			lookup1_stage1(mbuf, bucket, f);
+			lookup1_stage2_ext(pkt_index, mbuf, bucket,
+				pkts_mask_out, entries, buckets_mask, buckets,
+				keys, f);
+		}
+
+		goto grind_next_buckets;
+	}
+
+	/*
+	 * Pipeline fill
+	 *
+	 */
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline feed */
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/*
+	 * Pipeline run
+	 *
+	 */
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		bucket20 = bucket10;
+		bucket21 = bucket11;
+		mbuf20 = mbuf10;
+		mbuf21 = mbuf11;
+		mbuf10 = mbuf00;
+		mbuf11 = mbuf01;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,
+			mbuf00, mbuf01, pkts, pkts_mask, f);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+			bucket20, bucket21, pkts_mask_out, entries,
+			buckets_mask, buckets, keys, f);
+	}
+
+	/*
+	 * Pipeline flush
+	 *
+	 */
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries,
+		buckets_mask, buckets, keys, f);
+
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries,
+		buckets_mask, buckets, keys, f);
+
+grind_next_buckets:
+	/* Grind next buckets */
+	for ( ; buckets_mask; ) {
+		uint64_t buckets_mask_next = 0;
+
+		for ( ; buckets_mask; ) {
+			uint64_t pkt_mask;
+			uint32_t pkt_index;
+
+			pkt_index = __builtin_ctzll(buckets_mask);
+			pkt_mask = 1LLU << pkt_index;
+			buckets_mask &= ~pkt_mask;
+
+			lookup_grinder(pkt_index, buckets, keys, pkts_mask_out,
+				entries, buckets_mask_next, f);
+		}
+
+		buckets_mask = buckets_mask_next;
+	}
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_KEY32_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+	return 0;
+} /* rte_table_hash_lookup_key32_ext() */
+
+static int
+rte_table_hash_key32_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+
+	if (stats != NULL)
+		memcpy(stats, &t->stats, sizeof(t->stats));
+
+	if (clear)
+		memset(&t->stats, 0, sizeof(t->stats));
+
+	return 0;
+}
+
+struct rte_table_ops rte_table_hash_key32_lru_ops = {
+	.f_create = rte_table_hash_create_key32_lru,
+	.f_free = rte_table_hash_free_key32_lru,
+	.f_add = rte_table_hash_entry_add_key32_lru,
+	.f_delete = rte_table_hash_entry_delete_key32_lru,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_hash_lookup_key32_lru,
+	.f_stats = rte_table_hash_key32_stats_read,
+};
+
+struct rte_table_ops rte_table_hash_key32_ext_ops = {
+	.f_create = rte_table_hash_create_key32_ext,
+	.f_free = rte_table_hash_free_key32_ext,
+	.f_add = rte_table_hash_entry_add_key32_ext,
+	.f_delete = rte_table_hash_entry_delete_key32_ext,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_hash_lookup_key32_ext,
+	.f_stats = rte_table_hash_key32_stats_read,
+};
diff --git a/lib/librte_table/rte_table_hash_key8.c b/lib/librte_table/rte_table_hash_key8.c
new file mode 100644
index 00000000..e2e2bdc4
--- /dev/null
+++ b/lib/librte_table/rte_table_hash_key8.c
@@ -0,0 +1,1471 @@
+/*-
+ *	 BSD LICENSE
+ *
+ *	 Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *	 All rights reserved.
+ *
+ *	 Redistribution and use in source and binary forms, with or without
+ *	 modification, are permitted provided that the following conditions
+ *	 are met:
+ *
+ *	* Redistributions of source code must retain the above copyright
+ *		 notice, this list of conditions and the following disclaimer.
+ *	* Redistributions in binary form must reproduce the above copyright
+ *		 notice, this list of conditions and the following disclaimer in
+ *		 the documentation and/or other materials provided with the
+ *		 distribution.
+ *	* Neither the name of Intel Corporation nor the names of its
+ *		 contributors may be used to endorse or promote products derived
+ *		 from this software without specific prior written permission.
+ *
+ *	 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *	 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *	 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *	 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *	 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *	 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *	 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *	 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *	 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *	 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *	 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <string.h>
+#include <stdio.h>
+
+#include <rte_common.h>
+#include <rte_mbuf.h>
+#include <rte_memory.h>
+#include <rte_malloc.h>
+#include <rte_log.h>
+
+#include "rte_table_hash.h"
+#include "rte_lru.h"
+
+#define RTE_TABLE_HASH_KEY_SIZE						8
+
+#ifdef RTE_TABLE_STATS_COLLECT
+
+#define RTE_TABLE_HASH_KEY8_STATS_PKTS_IN_ADD(table, val) \
+	table->stats.n_pkts_in += val
+#define RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(table, val) \
+	table->stats.n_pkts_lookup_miss += val
+
+#else
+
+#define RTE_TABLE_HASH_KEY8_STATS_PKTS_IN_ADD(table, val)
+#define RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(table, val)
+
+#endif
+
+struct rte_bucket_4_8 {
+	/* Cache line 0 */
+	uint64_t signature;
+	uint64_t lru_list;
+	struct rte_bucket_4_8 *next;
+	uint64_t next_valid;
+
+	uint64_t key[4];
+
+	/* Cache line 1 */
+	uint8_t data[0];
+};
+
+struct rte_table_hash {
+	struct rte_table_stats stats;
+
+	/* Input parameters */
+	uint32_t n_buckets;
+	uint32_t n_entries_per_bucket;
+	uint32_t key_size;
+	uint32_t entry_size;
+	uint32_t bucket_size;
+	uint32_t signature_offset;
+	uint32_t key_offset;
+	uint64_t key_mask;
+	rte_table_hash_op_hash f_hash;
+	uint64_t seed;
+
+	/* Extendible buckets */
+	uint32_t n_buckets_ext;
+	uint32_t stack_pos;
+	uint32_t *stack;
+
+	/* Lookup table */
+	uint8_t memory[0] __rte_cache_aligned;
+};
+
+static int
+check_params_create_lru(struct rte_table_hash_key8_lru_params *params) {
+	/* n_entries */
+	if (params->n_entries == 0) {
+		RTE_LOG(ERR, TABLE, "%s: n_entries is zero\n", __func__);
+		return -EINVAL;
+	}
+
+	/* f_hash */
+	if (params->f_hash == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: f_hash function pointer is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void *
+rte_table_hash_create_key8_lru(void *params, int socket_id, uint32_t entry_size)
+{
+	struct rte_table_hash_key8_lru_params *p =
+		(struct rte_table_hash_key8_lru_params *) params;
+	struct rte_table_hash *f;
+	uint32_t n_buckets, n_entries_per_bucket, key_size, bucket_size_cl;
+	uint32_t total_size, i;
+
+	/* Check input parameters */
+	if ((check_params_create_lru(p) != 0) ||
+		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
+		((sizeof(struct rte_bucket_4_8) % RTE_CACHE_LINE_SIZE) != 0)) {
+		return NULL;
+	}
+	n_entries_per_bucket = 4;
+	key_size = 8;
+
+	/* Memory allocation */
+	n_buckets = rte_align32pow2((p->n_entries + n_entries_per_bucket - 1) /
+		n_entries_per_bucket);
+	bucket_size_cl = (sizeof(struct rte_bucket_4_8) + n_entries_per_bucket *
+		entry_size + RTE_CACHE_LINE_SIZE - 1) / RTE_CACHE_LINE_SIZE;
+	total_size = sizeof(struct rte_table_hash) + n_buckets *
+		bucket_size_cl * RTE_CACHE_LINE_SIZE;
+
+	f = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE, socket_id);
+	if (f == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot allocate %u bytes for hash table\n",
+			__func__, total_size);
+		return NULL;
+	}
+	RTE_LOG(INFO, TABLE,
+		"%s: Hash table memory footprint is %u bytes\n",
+		__func__, total_size);
+
+	/* Memory initialization */
+	f->n_buckets = n_buckets;
+	f->n_entries_per_bucket = n_entries_per_bucket;
+	f->key_size = key_size;
+	f->entry_size = entry_size;
+	f->bucket_size = bucket_size_cl * RTE_CACHE_LINE_SIZE;
+	f->signature_offset = p->signature_offset;
+	f->key_offset = p->key_offset;
+	f->f_hash = p->f_hash;
+	f->seed = p->seed;
+
+	if (p->key_mask != NULL)
+		f->key_mask = ((uint64_t *)p->key_mask)[0];
+	else
+		f->key_mask = 0xFFFFFFFFFFFFFFFFLLU;
+
+	for (i = 0; i < n_buckets; i++) {
+		struct rte_bucket_4_8 *bucket;
+
+		bucket = (struct rte_bucket_4_8 *) &f->memory[i *
+			f->bucket_size];
+		bucket->lru_list = 0x0000000100020003LLU;
+	}
+
+	return f;
+}
+
+static int
+rte_table_hash_free_key8_lru(void *table)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+
+	/* Check input parameters */
+	if (f == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	rte_free(f);
+	return 0;
+}
+
+static int
+rte_table_hash_entry_add_key8_lru(
+	void *table,
+	void *key,
+	void *entry,
+	int *key_found,
+	void **entry_ptr)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_8 *bucket;
+	uint64_t signature, mask, pos;
+	uint32_t bucket_index, i;
+
+	signature = f->f_hash(key, f->key_size, f->seed);
+	bucket_index = signature & (f->n_buckets - 1);
+	bucket = (struct rte_bucket_4_8 *)
+		&f->memory[bucket_index * f->bucket_size];
+
+	/* Key is present in the bucket */
+	for (i = 0, mask = 1LLU; i < 4; i++, mask <<= 1) {
+		uint64_t bucket_signature = bucket->signature;
+		uint64_t bucket_key = bucket->key[i];
+
+		if ((bucket_signature & mask) &&
+		    (*((uint64_t *) key) == bucket_key)) {
+			uint8_t *bucket_data = &bucket->data[i * f->entry_size];
+
+			memcpy(bucket_data, entry, f->entry_size);
+			lru_update(bucket, i);
+			*key_found = 1;
+			*entry_ptr = (void *) bucket_data;
+			return 0;
+		}
+	}
+
+	/* Key is not present in the bucket */
+	for (i = 0, mask = 1LLU; i < 4; i++, mask <<= 1) {
+		uint64_t bucket_signature = bucket->signature;
+
+		if ((bucket_signature & mask) == 0) {
+			uint8_t *bucket_data = &bucket->data[i * f->entry_size];
+
+			bucket->signature |= mask;
+			bucket->key[i] = *((uint64_t *) key);
+			memcpy(bucket_data, entry, f->entry_size);
+			lru_update(bucket, i);
+			*key_found = 0;
+			*entry_ptr = (void *) bucket_data;
+
+			return 0;
+		}
+	}
+
+	/* Bucket full: replace LRU entry */
+	pos = lru_pos(bucket);
+	bucket->key[pos] = *((uint64_t *) key);
+	memcpy(&bucket->data[pos * f->entry_size], entry, f->entry_size);
+	lru_update(bucket, pos);
+	*key_found	= 0;
+	*entry_ptr = (void *) &bucket->data[pos * f->entry_size];
+
+	return 0;
+}
+
+static int
+rte_table_hash_entry_delete_key8_lru(
+	void *table,
+	void *key,
+	int *key_found,
+	void *entry)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_8 *bucket;
+	uint64_t signature, mask;
+	uint32_t bucket_index, i;
+
+	signature = f->f_hash(key, f->key_size, f->seed);
+	bucket_index = signature & (f->n_buckets - 1);
+	bucket = (struct rte_bucket_4_8 *)
+		&f->memory[bucket_index * f->bucket_size];
+
+	/* Key is present in the bucket */
+	for (i = 0, mask = 1LLU; i < 4; i++, mask <<= 1) {
+		uint64_t bucket_signature = bucket->signature;
+		uint64_t bucket_key = bucket->key[i];
+
+		if ((bucket_signature & mask) &&
+		    (*((uint64_t *) key) == bucket_key)) {
+			uint8_t *bucket_data = &bucket->data[i * f->entry_size];
+
+			bucket->signature &= ~mask;
+			*key_found = 1;
+			if (entry)
+				memcpy(entry, bucket_data, f->entry_size);
+
+			return 0;
+		}
+	}
+
+	/* Key is not present in the bucket */
+	*key_found = 0;
+	return 0;
+}
+
+static int
+check_params_create_ext(struct rte_table_hash_key8_ext_params *params) {
+	/* n_entries */
+	if (params->n_entries == 0) {
+		RTE_LOG(ERR, TABLE, "%s: n_entries is zero\n", __func__);
+		return -EINVAL;
+	}
+
+	/* n_entries_ext */
+	if (params->n_entries_ext == 0) {
+		RTE_LOG(ERR, TABLE, "%s: n_entries_ext is zero\n", __func__);
+		return -EINVAL;
+	}
+
+	/* f_hash */
+	if (params->f_hash == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: f_hash function pointer is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void *
+rte_table_hash_create_key8_ext(void *params, int socket_id, uint32_t entry_size)
+{
+	struct rte_table_hash_key8_ext_params *p =
+		(struct rte_table_hash_key8_ext_params *) params;
+	struct rte_table_hash *f;
+	uint32_t n_buckets, n_buckets_ext, n_entries_per_bucket, key_size;
+	uint32_t bucket_size_cl, stack_size_cl, total_size, i;
+
+	/* Check input parameters */
+	if ((check_params_create_ext(p) != 0) ||
+		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
+		((sizeof(struct rte_bucket_4_8) % RTE_CACHE_LINE_SIZE) != 0))
+		return NULL;
+
+	n_entries_per_bucket = 4;
+	key_size = 8;
+
+	/* Memory allocation */
+	n_buckets = rte_align32pow2((p->n_entries + n_entries_per_bucket - 1) /
+		n_entries_per_bucket);
+	n_buckets_ext = (p->n_entries_ext + n_entries_per_bucket - 1) /
+		n_entries_per_bucket;
+	bucket_size_cl = (sizeof(struct rte_bucket_4_8) + n_entries_per_bucket *
+		entry_size + RTE_CACHE_LINE_SIZE - 1) / RTE_CACHE_LINE_SIZE;
+	stack_size_cl = (n_buckets_ext * sizeof(uint32_t) + RTE_CACHE_LINE_SIZE - 1)
+		/ RTE_CACHE_LINE_SIZE;
+	total_size = sizeof(struct rte_table_hash) + ((n_buckets +
+		n_buckets_ext) * bucket_size_cl + stack_size_cl) *
+		RTE_CACHE_LINE_SIZE;
+
+	f = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE, socket_id);
+	if (f == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot allocate %u bytes for hash table\n",
+			__func__, total_size);
+		return NULL;
+	}
+	RTE_LOG(INFO, TABLE,
+		"%s: Hash table memory footprint is %u bytes\n",
+		__func__, total_size);
+
+	/* Memory initialization */
+	f->n_buckets = n_buckets;
+	f->n_entries_per_bucket = n_entries_per_bucket;
+	f->key_size = key_size;
+	f->entry_size = entry_size;
+	f->bucket_size = bucket_size_cl * RTE_CACHE_LINE_SIZE;
+	f->signature_offset = p->signature_offset;
+	f->key_offset = p->key_offset;
+	f->f_hash = p->f_hash;
+	f->seed = p->seed;
+
+	f->n_buckets_ext = n_buckets_ext;
+	f->stack_pos = n_buckets_ext;
+	f->stack = (uint32_t *)
+		&f->memory[(n_buckets + n_buckets_ext) * f->bucket_size];
+
+	if (p->key_mask != NULL)
+		f->key_mask = ((uint64_t *)p->key_mask)[0];
+	else
+		f->key_mask = 0xFFFFFFFFFFFFFFFFLLU;
+
+	for (i = 0; i < n_buckets_ext; i++)
+		f->stack[i] = i;
+
+	return f;
+}
+
+static int
+rte_table_hash_free_key8_ext(void *table)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+
+	/* Check input parameters */
+	if (f == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	rte_free(f);
+	return 0;
+}
+
+static int
+rte_table_hash_entry_add_key8_ext(
+	void *table,
+	void *key,
+	void *entry,
+	int *key_found,
+	void **entry_ptr)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_8 *bucket0, *bucket, *bucket_prev;
+	uint64_t signature;
+	uint32_t bucket_index, i;
+
+	signature = f->f_hash(key, f->key_size, f->seed);
+	bucket_index = signature & (f->n_buckets - 1);
+	bucket0 = (struct rte_bucket_4_8 *)
+		&f->memory[bucket_index * f->bucket_size];
+
+	/* Key is present in the bucket */
+	for (bucket = bucket0; bucket != NULL; bucket = bucket->next) {
+		uint64_t mask;
+
+		for (i = 0, mask = 1LLU; i < 4; i++, mask <<= 1) {
+			uint64_t bucket_signature = bucket->signature;
+			uint64_t bucket_key = bucket->key[i];
+
+			if ((bucket_signature & mask) &&
+					(*((uint64_t *) key) == bucket_key)) {
+				uint8_t *bucket_data = &bucket->data[i *
+					f->entry_size];
+
+				memcpy(bucket_data, entry, f->entry_size);
+				*key_found = 1;
+				*entry_ptr = (void *) bucket_data;
+				return 0;
+			}
+		}
+	}
+
+	/* Key is not present in the bucket */
+	for (bucket_prev = NULL, bucket = bucket0;
+		bucket != NULL; bucket_prev = bucket, bucket = bucket->next) {
+		uint64_t mask;
+
+		for (i = 0, mask = 1LLU; i < 4; i++, mask <<= 1) {
+			uint64_t bucket_signature = bucket->signature;
+
+			if ((bucket_signature & mask) == 0) {
+				uint8_t *bucket_data = &bucket->data[i *
+					f->entry_size];
+
+				bucket->signature |= mask;
+				bucket->key[i] = *((uint64_t *) key);
+				memcpy(bucket_data, entry, f->entry_size);
+				*key_found = 0;
+				*entry_ptr = (void *) bucket_data;
+
+				return 0;
+			}
+		}
+	}
+
+	/* Bucket full: extend bucket */
+	if (f->stack_pos > 0) {
+		bucket_index = f->stack[--f->stack_pos];
+
+		bucket = (struct rte_bucket_4_8 *) &f->memory[(f->n_buckets +
+			bucket_index) * f->bucket_size];
+		bucket_prev->next = bucket;
+		bucket_prev->next_valid = 1;
+
+		bucket->signature = 1;
+		bucket->key[0] = *((uint64_t *) key);
+		memcpy(&bucket->data[0], entry, f->entry_size);
+		*key_found = 0;
+		*entry_ptr = (void *) &bucket->data[0];
+		return 0;
+	}
+
+	return -ENOSPC;
+}
+
+static int
+rte_table_hash_entry_delete_key8_ext(
+	void *table,
+	void *key,
+	int *key_found,
+	void *entry)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_8 *bucket0, *bucket, *bucket_prev;
+	uint64_t signature;
+	uint32_t bucket_index, i;
+
+	signature = f->f_hash(key, f->key_size, f->seed);
+	bucket_index = signature & (f->n_buckets - 1);
+	bucket0 = (struct rte_bucket_4_8 *)
+		&f->memory[bucket_index * f->bucket_size];
+
+	/* Key is present in the bucket */
+	for (bucket_prev = NULL, bucket = bucket0; bucket != NULL;
+		bucket_prev = bucket, bucket = bucket->next) {
+		uint64_t mask;
+
+		for (i = 0, mask = 1LLU; i < 4; i++, mask <<= 1) {
+			uint64_t bucket_signature = bucket->signature;
+			uint64_t bucket_key = bucket->key[i];
+
+			if ((bucket_signature & mask) &&
+				(*((uint64_t *) key) == bucket_key)) {
+				uint8_t *bucket_data = &bucket->data[i *
+					f->entry_size];
+
+				bucket->signature &= ~mask;
+				*key_found = 1;
+				if (entry)
+					memcpy(entry, bucket_data,
+						f->entry_size);
+
+				if ((bucket->signature == 0) &&
+				    (bucket_prev != NULL)) {
+					bucket_prev->next = bucket->next;
+					bucket_prev->next_valid =
+						bucket->next_valid;
+
+					memset(bucket, 0,
+						sizeof(struct rte_bucket_4_8));
+					bucket_index = (((uint8_t *)bucket -
+						(uint8_t *)f->memory)/f->bucket_size) - f->n_buckets;
+					f->stack[f->stack_pos++] = bucket_index;
+				}
+
+				return 0;
+			}
+		}
+	}
+
+	/* Key is not present in the bucket */
+	*key_found = 0;
+	return 0;
+}
+
+#define lookup_key8_cmp(key_in, bucket, pos)			\
+{								\
+	uint64_t xor[4], signature;				\
+								\
+	signature = ~bucket->signature;				\
+								\
+	xor[0] = (key_in[0] ^	 bucket->key[0]) | (signature & 1);\
+	xor[1] = (key_in[0] ^	 bucket->key[1]) | (signature & 2);\
+	xor[2] = (key_in[0] ^	 bucket->key[2]) | (signature & 4);\
+	xor[3] = (key_in[0] ^	 bucket->key[3]) | (signature & 8);\
+								\
+	pos = 4;						\
+	if (xor[0] == 0)					\
+		pos = 0;					\
+	if (xor[1] == 0)					\
+		pos = 1;					\
+	if (xor[2] == 0)					\
+		pos = 2;					\
+	if (xor[3] == 0)					\
+		pos = 3;					\
+}
+
+#define lookup1_stage0(pkt0_index, mbuf0, pkts, pkts_mask, f)	\
+{								\
+	uint64_t pkt_mask;					\
+	uint32_t key_offset = f->key_offset;\
+								\
+	pkt0_index = __builtin_ctzll(pkts_mask);		\
+	pkt_mask = 1LLU << pkt0_index;				\
+	pkts_mask &= ~pkt_mask;					\
+								\
+	mbuf0 = pkts[pkt0_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf0, key_offset));	\
+}
+
+#define lookup1_stage1(mbuf1, bucket1, f)			\
+{								\
+	uint64_t signature;					\
+	uint32_t bucket_index;					\
+								\
+	signature = RTE_MBUF_METADATA_UINT32(mbuf1, f->signature_offset);\
+	bucket_index = signature & (f->n_buckets - 1);		\
+	bucket1 = (struct rte_bucket_4_8 *)			\
+		&f->memory[bucket_index * f->bucket_size];	\
+	rte_prefetch0(bucket1);					\
+}
+
+#define lookup1_stage1_dosig(mbuf1, bucket1, f)			\
+{								\
+	uint64_t *key;						\
+	uint64_t signature;					\
+	uint32_t bucket_index;					\
+	uint64_t hash_key_buffer;				\
+								\
+	key = RTE_MBUF_METADATA_UINT64_PTR(mbuf1, f->key_offset);\
+	hash_key_buffer = *key & f->key_mask;			\
+	signature = f->f_hash(&hash_key_buffer,			\
+		RTE_TABLE_HASH_KEY_SIZE, f->seed);		\
+	bucket_index = signature & (f->n_buckets - 1);		\
+	bucket1 = (struct rte_bucket_4_8 *)			\
+		&f->memory[bucket_index * f->bucket_size];	\
+	rte_prefetch0(bucket1);					\
+}
+
+#define lookup1_stage2_lru(pkt2_index, mbuf2, bucket2,		\
+	pkts_mask_out, entries, f)				\
+{								\
+	void *a;						\
+	uint64_t pkt_mask;					\
+	uint64_t *key;						\
+	uint32_t pos;						\
+	uint64_t hash_key_buffer;				\
+								\
+	key = RTE_MBUF_METADATA_UINT64_PTR(mbuf2, f->key_offset);\
+	hash_key_buffer = key[0] & f->key_mask;			\
+								\
+	lookup_key8_cmp((&hash_key_buffer), bucket2, pos);	\
+								\
+	pkt_mask = ((bucket2->signature >> pos) & 1LLU) << pkt2_index;\
+	pkts_mask_out |= pkt_mask;				\
+								\
+	a = (void *) &bucket2->data[pos * f->entry_size];	\
+	rte_prefetch0(a);					\
+	entries[pkt2_index] = a;				\
+	lru_update(bucket2, pos);				\
+}
+
+#define lookup1_stage2_ext(pkt2_index, mbuf2, bucket2, pkts_mask_out,\
+	entries, buckets_mask, buckets, keys, f)		\
+{								\
+	struct rte_bucket_4_8 *bucket_next;			\
+	void *a;						\
+	uint64_t pkt_mask, bucket_mask;				\
+	uint64_t *key;						\
+	uint32_t pos;						\
+	uint64_t hash_key_buffer;				\
+								\
+	key = RTE_MBUF_METADATA_UINT64_PTR(mbuf2, f->key_offset);\
+	hash_key_buffer = *key & f->key_mask;			\
+								\
+	lookup_key8_cmp((&hash_key_buffer), bucket2, pos);	\
+								\
+	pkt_mask = ((bucket2->signature >> pos) & 1LLU) << pkt2_index;\
+	pkts_mask_out |= pkt_mask;				\
+								\
+	a = (void *) &bucket2->data[pos * f->entry_size];	\
+	rte_prefetch0(a);					\
+	entries[pkt2_index] = a;				\
+								\
+	bucket_mask = (~pkt_mask) & (bucket2->next_valid << pkt2_index);\
+	buckets_mask |= bucket_mask;				\
+	bucket_next = bucket2->next;				\
+	buckets[pkt2_index] = bucket_next;			\
+	keys[pkt2_index] = key;					\
+}
+
+#define lookup_grinder(pkt_index, buckets, keys, pkts_mask_out, entries,\
+	buckets_mask, f)					\
+{								\
+	struct rte_bucket_4_8 *bucket, *bucket_next;		\
+	void *a;						\
+	uint64_t pkt_mask, bucket_mask;				\
+	uint64_t *key;						\
+	uint32_t pos;						\
+	uint64_t hash_key_buffer;				\
+								\
+	bucket = buckets[pkt_index];				\
+	key = keys[pkt_index];					\
+	hash_key_buffer = (*key) & f->key_mask;			\
+								\
+	lookup_key8_cmp((&hash_key_buffer), bucket, pos);	\
+								\
+	pkt_mask = ((bucket->signature >> pos) & 1LLU) << pkt_index;\
+	pkts_mask_out |= pkt_mask;				\
+								\
+	a = (void *) &bucket->data[pos * f->entry_size];	\
+	rte_prefetch0(a);					\
+	entries[pkt_index] = a;					\
+								\
+	bucket_mask = (~pkt_mask) & (bucket->next_valid << pkt_index);\
+	buckets_mask |= bucket_mask;				\
+	bucket_next = bucket->next;				\
+	rte_prefetch0(bucket_next);				\
+	buckets[pkt_index] = bucket_next;			\
+	keys[pkt_index] = key;					\
+}
+
+#define lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01,\
+	pkts, pkts_mask, f)					\
+{								\
+	uint64_t pkt00_mask, pkt01_mask;			\
+	uint32_t key_offset = f->key_offset;		\
+								\
+	pkt00_index = __builtin_ctzll(pkts_mask);		\
+	pkt00_mask = 1LLU << pkt00_index;			\
+	pkts_mask &= ~pkt00_mask;				\
+								\
+	mbuf00 = pkts[pkt00_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf00, key_offset));\
+								\
+	pkt01_index = __builtin_ctzll(pkts_mask);		\
+	pkt01_mask = 1LLU << pkt01_index;			\
+	pkts_mask &= ~pkt01_mask;				\
+								\
+	mbuf01 = pkts[pkt01_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf01, key_offset));\
+}
+
+#define lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,\
+	mbuf00, mbuf01, pkts, pkts_mask, f)			\
+{								\
+	uint64_t pkt00_mask, pkt01_mask;			\
+	uint32_t key_offset = f->key_offset;		\
+								\
+	pkt00_index = __builtin_ctzll(pkts_mask);		\
+	pkt00_mask = 1LLU << pkt00_index;			\
+	pkts_mask &= ~pkt00_mask;				\
+								\
+	mbuf00 = pkts[pkt00_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf00, key_offset));\
+								\
+	pkt01_index = __builtin_ctzll(pkts_mask);		\
+	if (pkts_mask == 0)					\
+		pkt01_index = pkt00_index;			\
+								\
+	pkt01_mask = 1LLU << pkt01_index;			\
+	pkts_mask &= ~pkt01_mask;				\
+								\
+	mbuf01 = pkts[pkt01_index];				\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf01, key_offset));\
+}
+
+#define lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f)	\
+{								\
+	uint64_t signature10, signature11;			\
+	uint32_t bucket10_index, bucket11_index;		\
+								\
+	signature10 = RTE_MBUF_METADATA_UINT32(mbuf10, f->signature_offset);\
+	bucket10_index = signature10 & (f->n_buckets - 1);	\
+	bucket10 = (struct rte_bucket_4_8 *)			\
+		&f->memory[bucket10_index * f->bucket_size];	\
+	rte_prefetch0(bucket10);				\
+								\
+	signature11 = RTE_MBUF_METADATA_UINT32(mbuf11, f->signature_offset);\
+	bucket11_index = signature11 & (f->n_buckets - 1);	\
+	bucket11 = (struct rte_bucket_4_8 *)			\
+		&f->memory[bucket11_index * f->bucket_size];	\
+	rte_prefetch0(bucket11);				\
+}
+
+#define lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f)\
+{								\
+	uint64_t *key10, *key11;				\
+	uint64_t hash_offset_buffer10;				\
+	uint64_t hash_offset_buffer11;				\
+	uint64_t signature10, signature11;			\
+	uint32_t bucket10_index, bucket11_index;		\
+	rte_table_hash_op_hash f_hash = f->f_hash;		\
+	uint64_t seed = f->seed;				\
+	uint32_t key_offset = f->key_offset;			\
+								\
+	key10 = RTE_MBUF_METADATA_UINT64_PTR(mbuf10, key_offset);\
+	key11 = RTE_MBUF_METADATA_UINT64_PTR(mbuf11, key_offset);\
+	hash_offset_buffer10 = *key10 & f->key_mask;		\
+	hash_offset_buffer11 = *key11 & f->key_mask;		\
+								\
+	signature10 = f_hash(&hash_offset_buffer10,		\
+		RTE_TABLE_HASH_KEY_SIZE, seed);			\
+	bucket10_index = signature10 & (f->n_buckets - 1);	\
+	bucket10 = (struct rte_bucket_4_8 *)			\
+		&f->memory[bucket10_index * f->bucket_size];	\
+	rte_prefetch0(bucket10);				\
+								\
+	signature11 = f_hash(&hash_offset_buffer11,		\
+		RTE_TABLE_HASH_KEY_SIZE, seed);			\
+	bucket11_index = signature11 & (f->n_buckets - 1);	\
+	bucket11 = (struct rte_bucket_4_8 *)			\
+		&f->memory[bucket11_index * f->bucket_size];	\
+	rte_prefetch0(bucket11);				\
+}
+
+#define lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,\
+	bucket20, bucket21, pkts_mask_out, entries, f)		\
+{								\
+	void *a20, *a21;					\
+	uint64_t pkt20_mask, pkt21_mask;			\
+	uint64_t *key20, *key21;				\
+	uint64_t hash_offset_buffer20;				\
+	uint64_t hash_offset_buffer21;				\
+	uint32_t pos20, pos21;					\
+								\
+	key20 = RTE_MBUF_METADATA_UINT64_PTR(mbuf20, f->key_offset);\
+	key21 = RTE_MBUF_METADATA_UINT64_PTR(mbuf21, f->key_offset);\
+	hash_offset_buffer20 = *key20 & f->key_mask;		\
+	hash_offset_buffer21 = *key21 & f->key_mask;		\
+								\
+	lookup_key8_cmp((&hash_offset_buffer20), bucket20, pos20);\
+	lookup_key8_cmp((&hash_offset_buffer21), bucket21, pos21);\
+								\
+	pkt20_mask = ((bucket20->signature >> pos20) & 1LLU) << pkt20_index;\
+	pkt21_mask = ((bucket21->signature >> pos21) & 1LLU) << pkt21_index;\
+	pkts_mask_out |= pkt20_mask | pkt21_mask;		\
+								\
+	a20 = (void *) &bucket20->data[pos20 * f->entry_size];	\
+	a21 = (void *) &bucket21->data[pos21 * f->entry_size];	\
+	rte_prefetch0(a20);					\
+	rte_prefetch0(a21);					\
+	entries[pkt20_index] = a20;				\
+	entries[pkt21_index] = a21;				\
+	lru_update(bucket20, pos20);				\
+	lru_update(bucket21, pos21);				\
+}
+
+#define lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21, bucket20, \
+	bucket21, pkts_mask_out, entries, buckets_mask, buckets, keys, f)\
+{								\
+	struct rte_bucket_4_8 *bucket20_next, *bucket21_next;	\
+	void *a20, *a21;					\
+	uint64_t pkt20_mask, pkt21_mask, bucket20_mask, bucket21_mask;\
+	uint64_t *key20, *key21;				\
+	uint64_t hash_offset_buffer20;				\
+	uint64_t hash_offset_buffer21;				\
+	uint32_t pos20, pos21;					\
+								\
+	key20 = RTE_MBUF_METADATA_UINT64_PTR(mbuf20, f->key_offset);\
+	key21 = RTE_MBUF_METADATA_UINT64_PTR(mbuf21, f->key_offset);\
+	hash_offset_buffer20 = *key20 & f->key_mask;		\
+	hash_offset_buffer21 = *key21 & f->key_mask;		\
+								\
+	lookup_key8_cmp((&hash_offset_buffer20), bucket20, pos20);\
+	lookup_key8_cmp((&hash_offset_buffer21), bucket21, pos21);\
+								\
+	pkt20_mask = ((bucket20->signature >> pos20) & 1LLU) << pkt20_index;\
+	pkt21_mask = ((bucket21->signature >> pos21) & 1LLU) << pkt21_index;\
+	pkts_mask_out |= pkt20_mask | pkt21_mask;		\
+								\
+	a20 = (void *) &bucket20->data[pos20 * f->entry_size];	\
+	a21 = (void *) &bucket21->data[pos21 * f->entry_size];	\
+	rte_prefetch0(a20);					\
+	rte_prefetch0(a21);					\
+	entries[pkt20_index] = a20;				\
+	entries[pkt21_index] = a21;				\
+								\
+	bucket20_mask = (~pkt20_mask) & (bucket20->next_valid << pkt20_index);\
+	bucket21_mask = (~pkt21_mask) & (bucket21->next_valid << pkt21_index);\
+	buckets_mask |= bucket20_mask | bucket21_mask;		\
+	bucket20_next = bucket20->next;				\
+	bucket21_next = bucket21->next;				\
+	buckets[pkt20_index] = bucket20_next;			\
+	buckets[pkt21_index] = bucket21_next;			\
+	keys[pkt20_index] = key20;				\
+	keys[pkt21_index] = key21;				\
+}
+
+static int
+rte_table_hash_lookup_key8_lru(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_8 *bucket10, *bucket11, *bucket20, *bucket21;
+	struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21;
+	uint32_t pkt00_index, pkt01_index, pkt10_index,
+			pkt11_index, pkt20_index, pkt21_index;
+	uint64_t pkts_mask_out = 0;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_KEY8_STATS_PKTS_IN_ADD(f, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 5 packets */
+	if (__builtin_popcountll(pkts_mask) < 5) {
+		for ( ; pkts_mask; ) {
+			struct rte_bucket_4_8 *bucket;
+			struct rte_mbuf *mbuf;
+			uint32_t pkt_index;
+
+			lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f);
+			lookup1_stage1(mbuf, bucket, f);
+			lookup1_stage2_lru(pkt_index, mbuf, bucket,
+					pkts_mask_out, entries, f);
+		}
+
+		*lookup_hit_mask = pkts_mask_out;
+		RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+		return 0;
+	}
+
+	/*
+	 * Pipeline fill
+	 *
+	 */
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline feed */
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/*
+	 * Pipeline run
+	 *
+	 */
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		bucket20 = bucket10;
+		bucket21 = bucket11;
+		mbuf20 = mbuf10;
+		mbuf21 = mbuf11;
+		mbuf10 = mbuf00;
+		mbuf11 = mbuf01;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,
+			mbuf00, mbuf01, pkts, pkts_mask, f);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,
+			bucket20, bucket21, pkts_mask_out, entries, f);
+	}
+
+	/*
+	 * Pipeline flush
+	 *
+	 */
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries, f);
+
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries, f);
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+	return 0;
+} /* rte_table_hash_lookup_key8_lru() */
+
+static int
+rte_table_hash_lookup_key8_lru_dosig(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_8 *bucket10, *bucket11, *bucket20, *bucket21;
+	struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21;
+	uint32_t pkt00_index, pkt01_index, pkt10_index;
+	uint32_t pkt11_index, pkt20_index, pkt21_index;
+	uint64_t pkts_mask_out = 0;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_KEY8_STATS_PKTS_IN_ADD(f, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 5 packets */
+	if (__builtin_popcountll(pkts_mask) < 5) {
+		for ( ; pkts_mask; ) {
+			struct rte_bucket_4_8 *bucket;
+			struct rte_mbuf *mbuf;
+			uint32_t pkt_index;
+
+			lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f);
+			lookup1_stage1_dosig(mbuf, bucket, f);
+			lookup1_stage2_lru(pkt_index, mbuf, bucket,
+				pkts_mask_out, entries, f);
+		}
+
+		*lookup_hit_mask = pkts_mask_out;
+		RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+		return 0;
+	}
+
+	/*
+	 * Pipeline fill
+	 *
+	 */
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline feed */
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/*
+	 * Pipeline run
+	 *
+	 */
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		bucket20 = bucket10;
+		bucket21 = bucket11;
+		mbuf20 = mbuf10;
+		mbuf21 = mbuf11;
+		mbuf10 = mbuf00;
+		mbuf11 = mbuf01;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,
+			mbuf00, mbuf01, pkts, pkts_mask, f);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,
+			bucket20, bucket21, pkts_mask_out, entries, f);
+	}
+
+	/*
+	 * Pipeline flush
+	 *
+	 */
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries, f);
+
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_lru(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries, f);
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+	return 0;
+} /* rte_table_hash_lookup_key8_lru_dosig() */
+
+static int
+rte_table_hash_lookup_key8_ext(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_8 *bucket10, *bucket11, *bucket20, *bucket21;
+	struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21;
+	uint32_t pkt00_index, pkt01_index, pkt10_index;
+	uint32_t pkt11_index, pkt20_index, pkt21_index;
+	uint64_t pkts_mask_out = 0, buckets_mask = 0;
+	struct rte_bucket_4_8 *buckets[RTE_PORT_IN_BURST_SIZE_MAX];
+	uint64_t *keys[RTE_PORT_IN_BURST_SIZE_MAX];
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_KEY8_STATS_PKTS_IN_ADD(f, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 5 packets */
+	if (__builtin_popcountll(pkts_mask) < 5) {
+		for ( ; pkts_mask; ) {
+			struct rte_bucket_4_8 *bucket;
+			struct rte_mbuf *mbuf;
+			uint32_t pkt_index;
+
+			lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f);
+			lookup1_stage1(mbuf, bucket, f);
+			lookup1_stage2_ext(pkt_index, mbuf, bucket,
+				pkts_mask_out, entries, buckets_mask, buckets,
+				keys, f);
+		}
+
+		goto grind_next_buckets;
+	}
+
+	/*
+	 * Pipeline fill
+	 *
+	 */
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline feed */
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/*
+	 * Pipeline run
+	 *
+	 */
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		bucket20 = bucket10;
+		bucket21 = bucket11;
+		mbuf20 = mbuf10;
+		mbuf21 = mbuf11;
+		mbuf10 = mbuf00;
+		mbuf11 = mbuf01;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,
+			mbuf00, mbuf01, pkts, pkts_mask, f);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+			bucket20, bucket21, pkts_mask_out, entries,
+			buckets_mask, buckets, keys, f);
+	}
+
+	/*
+	 * Pipeline flush
+	 *
+	 */
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries,
+		buckets_mask, buckets, keys, f);
+
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries,
+		buckets_mask, buckets, keys, f);
+
+grind_next_buckets:
+	/* Grind next buckets */
+	for ( ; buckets_mask; ) {
+		uint64_t buckets_mask_next = 0;
+
+		for ( ; buckets_mask; ) {
+			uint64_t pkt_mask;
+			uint32_t pkt_index;
+
+			pkt_index = __builtin_ctzll(buckets_mask);
+			pkt_mask = 1LLU << pkt_index;
+			buckets_mask &= ~pkt_mask;
+
+			lookup_grinder(pkt_index, buckets, keys, pkts_mask_out,
+				entries, buckets_mask_next, f);
+		}
+
+		buckets_mask = buckets_mask_next;
+	}
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+	return 0;
+} /* rte_table_hash_lookup_key8_ext() */
+
+static int
+rte_table_hash_lookup_key8_ext_dosig(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *f = (struct rte_table_hash *) table;
+	struct rte_bucket_4_8 *bucket10, *bucket11, *bucket20, *bucket21;
+	struct rte_mbuf *mbuf00, *mbuf01, *mbuf10, *mbuf11, *mbuf20, *mbuf21;
+	uint32_t pkt00_index, pkt01_index, pkt10_index;
+	uint32_t pkt11_index, pkt20_index, pkt21_index;
+	uint64_t pkts_mask_out = 0, buckets_mask = 0;
+	struct rte_bucket_4_8 *buckets[RTE_PORT_IN_BURST_SIZE_MAX];
+	uint64_t *keys[RTE_PORT_IN_BURST_SIZE_MAX];
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_KEY8_STATS_PKTS_IN_ADD(f, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 5 packets */
+	if (__builtin_popcountll(pkts_mask) < 5) {
+		for ( ; pkts_mask; ) {
+			struct rte_bucket_4_8 *bucket;
+			struct rte_mbuf *mbuf;
+			uint32_t pkt_index;
+
+			lookup1_stage0(pkt_index, mbuf, pkts, pkts_mask, f);
+			lookup1_stage1_dosig(mbuf, bucket, f);
+			lookup1_stage2_ext(pkt_index, mbuf, bucket,
+				pkts_mask_out, entries, buckets_mask,
+				buckets, keys, f);
+		}
+
+		goto grind_next_buckets;
+	}
+
+	/*
+	 * Pipeline fill
+	 *
+	 */
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline feed */
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(pkt00_index, pkt01_index, mbuf00, mbuf01, pkts,
+		pkts_mask, f);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/*
+	 * Pipeline run
+	 *
+	 */
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		bucket20 = bucket10;
+		bucket21 = bucket11;
+		mbuf20 = mbuf10;
+		mbuf21 = mbuf11;
+		mbuf10 = mbuf00;
+		mbuf11 = mbuf01;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(pkt00_index, pkt01_index,
+			mbuf00, mbuf01, pkts, pkts_mask, f);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+			bucket20, bucket21, pkts_mask_out, entries,
+			buckets_mask, buckets, keys, f);
+	}
+
+	/*
+	 * Pipeline flush
+	 *
+	 */
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	mbuf10 = mbuf00;
+	mbuf11 = mbuf01;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(mbuf10, mbuf11, bucket10, bucket11, f);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries,
+		buckets_mask, buckets, keys, f);
+
+	/* Pipeline feed */
+	bucket20 = bucket10;
+	bucket21 = bucket11;
+	mbuf20 = mbuf10;
+	mbuf21 = mbuf11;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2_ext(pkt20_index, pkt21_index, mbuf20, mbuf21,
+		bucket20, bucket21, pkts_mask_out, entries,
+		buckets_mask, buckets, keys, f);
+
+grind_next_buckets:
+	/* Grind next buckets */
+	for ( ; buckets_mask; ) {
+		uint64_t buckets_mask_next = 0;
+
+		for ( ; buckets_mask; ) {
+			uint64_t pkt_mask;
+			uint32_t pkt_index;
+
+			pkt_index = __builtin_ctzll(buckets_mask);
+			pkt_mask = 1LLU << pkt_index;
+			buckets_mask &= ~pkt_mask;
+
+			lookup_grinder(pkt_index, buckets, keys, pkts_mask_out,
+				entries, buckets_mask_next, f);
+		}
+
+		buckets_mask = buckets_mask_next;
+	}
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_KEY8_STATS_PKTS_LOOKUP_MISS(f, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+	return 0;
+} /* rte_table_hash_lookup_key8_dosig_ext() */
+
+static int
+rte_table_hash_key8_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+
+	if (stats != NULL)
+		memcpy(stats, &t->stats, sizeof(t->stats));
+
+	if (clear)
+		memset(&t->stats, 0, sizeof(t->stats));
+
+	return 0;
+}
+
+struct rte_table_ops rte_table_hash_key8_lru_ops = {
+	.f_create = rte_table_hash_create_key8_lru,
+	.f_free = rte_table_hash_free_key8_lru,
+	.f_add = rte_table_hash_entry_add_key8_lru,
+	.f_delete = rte_table_hash_entry_delete_key8_lru,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_hash_lookup_key8_lru,
+	.f_stats = rte_table_hash_key8_stats_read,
+};
+
+struct rte_table_ops rte_table_hash_key8_lru_dosig_ops = {
+	.f_create = rte_table_hash_create_key8_lru,
+	.f_free = rte_table_hash_free_key8_lru,
+	.f_add = rte_table_hash_entry_add_key8_lru,
+	.f_delete = rte_table_hash_entry_delete_key8_lru,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_hash_lookup_key8_lru_dosig,
+	.f_stats = rte_table_hash_key8_stats_read,
+};
+
+struct rte_table_ops rte_table_hash_key8_ext_ops = {
+	.f_create = rte_table_hash_create_key8_ext,
+	.f_free = rte_table_hash_free_key8_ext,
+	.f_add = rte_table_hash_entry_add_key8_ext,
+	.f_delete = rte_table_hash_entry_delete_key8_ext,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_hash_lookup_key8_ext,
+	.f_stats = rte_table_hash_key8_stats_read,
+};
+
+struct rte_table_ops rte_table_hash_key8_ext_dosig_ops = {
+	.f_create = rte_table_hash_create_key8_ext,
+	.f_free = rte_table_hash_free_key8_ext,
+	.f_add = rte_table_hash_entry_add_key8_ext,
+	.f_delete = rte_table_hash_entry_delete_key8_ext,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_hash_lookup_key8_ext_dosig,
+	.f_stats = rte_table_hash_key8_stats_read,
+};
diff --git a/lib/librte_table/rte_table_hash_lru.c b/lib/librte_table/rte_table_hash_lru.c
new file mode 100644
index 00000000..407c62ab
--- /dev/null
+++ b/lib/librte_table/rte_table_hash_lru.c
@@ -0,0 +1,1102 @@
+/*-
+ *	 BSD LICENSE
+ *
+ *	 Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *	 All rights reserved.
+ *
+ *	 Redistribution and use in source and binary forms, with or without
+ *	 modification, are permitted provided that the following conditions
+ *	 are met:
+ *
+ *	* Redistributions of source code must retain the above copyright
+ *		 notice, this list of conditions and the following disclaimer.
+ *	* Redistributions in binary form must reproduce the above copyright
+ *		 notice, this list of conditions and the following disclaimer in
+ *		 the documentation and/or other materials provided with the
+ *		 distribution.
+ *	* Neither the name of Intel Corporation nor the names of its
+ *		 contributors may be used to endorse or promote products derived
+ *		 from this software without specific prior written permission.
+ *
+ *	 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *	 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *	 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *	 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *	 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *	 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *	 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *	 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *	 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *	 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *	 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <string.h>
+#include <stdio.h>
+
+#include <rte_common.h>
+#include <rte_mbuf.h>
+#include <rte_memory.h>
+#include <rte_malloc.h>
+#include <rte_log.h>
+
+#include "rte_table_hash.h"
+#include "rte_lru.h"
+
+#define KEYS_PER_BUCKET	4
+
+#ifdef RTE_TABLE_STATS_COLLECT
+
+#define RTE_TABLE_HASH_LRU_STATS_PKTS_IN_ADD(table, val) \
+	table->stats.n_pkts_in += val
+#define RTE_TABLE_HASH_LRU_STATS_PKTS_LOOKUP_MISS(table, val) \
+	table->stats.n_pkts_lookup_miss += val
+
+#else
+
+#define RTE_TABLE_HASH_LRU_STATS_PKTS_IN_ADD(table, val)
+#define RTE_TABLE_HASH_LRU_STATS_PKTS_LOOKUP_MISS(table, val)
+
+#endif
+
+struct bucket {
+	union {
+		struct bucket *next;
+		uint64_t lru_list;
+	};
+	uint16_t sig[KEYS_PER_BUCKET];
+	uint32_t key_pos[KEYS_PER_BUCKET];
+};
+
+struct grinder {
+	struct bucket *bkt;
+	uint64_t sig;
+	uint64_t match;
+	uint64_t match_pos;
+	uint32_t key_index;
+};
+
+struct rte_table_hash {
+	struct rte_table_stats stats;
+
+	/* Input parameters */
+	uint32_t key_size;
+	uint32_t entry_size;
+	uint32_t n_keys;
+	uint32_t n_buckets;
+	rte_table_hash_op_hash f_hash;
+	uint64_t seed;
+	uint32_t signature_offset;
+	uint32_t key_offset;
+
+	/* Internal */
+	uint64_t bucket_mask;
+	uint32_t key_size_shl;
+	uint32_t data_size_shl;
+	uint32_t key_stack_tos;
+
+	/* Grinder */
+	struct grinder grinders[RTE_PORT_IN_BURST_SIZE_MAX];
+
+	/* Tables */
+	struct bucket *buckets;
+	uint8_t *key_mem;
+	uint8_t *data_mem;
+	uint32_t *key_stack;
+
+	/* Table memory */
+	uint8_t memory[0] __rte_cache_aligned;
+};
+
+static int
+check_params_create(struct rte_table_hash_lru_params *params)
+{
+	uint32_t n_buckets_min;
+
+	/* key_size */
+	if ((params->key_size == 0) ||
+		(!rte_is_power_of_2(params->key_size))) {
+		RTE_LOG(ERR, TABLE, "%s: key_size invalid value\n", __func__);
+		return -EINVAL;
+	}
+
+	/* n_keys */
+	if ((params->n_keys == 0) ||
+		(!rte_is_power_of_2(params->n_keys))) {
+		RTE_LOG(ERR, TABLE, "%s: n_keys invalid value\n", __func__);
+		return -EINVAL;
+	}
+
+	/* n_buckets */
+	n_buckets_min = (params->n_keys + KEYS_PER_BUCKET - 1) / params->n_keys;
+	if ((params->n_buckets == 0) ||
+		(!rte_is_power_of_2(params->n_keys)) ||
+		(params->n_buckets < n_buckets_min)) {
+		RTE_LOG(ERR, TABLE, "%s: n_buckets invalid value\n", __func__);
+		return -EINVAL;
+	}
+
+	/* f_hash */
+	if (params->f_hash == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: f_hash invalid value\n", __func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void *
+rte_table_hash_lru_create(void *params, int socket_id, uint32_t entry_size)
+{
+	struct rte_table_hash_lru_params *p =
+		(struct rte_table_hash_lru_params *) params;
+	struct rte_table_hash *t;
+	uint32_t total_size, table_meta_sz;
+	uint32_t bucket_sz, key_sz, key_stack_sz, data_sz;
+	uint32_t bucket_offset, key_offset, key_stack_offset, data_offset;
+	uint32_t i;
+
+	/* Check input parameters */
+	if ((check_params_create(p) != 0) ||
+		(!rte_is_power_of_2(entry_size)) ||
+		((sizeof(struct rte_table_hash) % RTE_CACHE_LINE_SIZE) != 0) ||
+		(sizeof(struct bucket) != (RTE_CACHE_LINE_SIZE / 2))) {
+		return NULL;
+	}
+
+	/* Memory allocation */
+	table_meta_sz = RTE_CACHE_LINE_ROUNDUP(sizeof(struct rte_table_hash));
+	bucket_sz = RTE_CACHE_LINE_ROUNDUP(p->n_buckets * sizeof(struct bucket));
+	key_sz = RTE_CACHE_LINE_ROUNDUP(p->n_keys * p->key_size);
+	key_stack_sz = RTE_CACHE_LINE_ROUNDUP(p->n_keys * sizeof(uint32_t));
+	data_sz = RTE_CACHE_LINE_ROUNDUP(p->n_keys * entry_size);
+	total_size = table_meta_sz + bucket_sz + key_sz + key_stack_sz +
+		data_sz;
+
+	t = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE, socket_id);
+	if (t == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot allocate %u bytes for hash table\n",
+			__func__, total_size);
+		return NULL;
+	}
+	RTE_LOG(INFO, TABLE, "%s (%u-byte key): Hash table memory footprint is "
+		"%u bytes\n", __func__, p->key_size, total_size);
+
+	/* Memory initialization */
+	t->key_size = p->key_size;
+	t->entry_size = entry_size;
+	t->n_keys = p->n_keys;
+	t->n_buckets = p->n_buckets;
+	t->f_hash = p->f_hash;
+	t->seed = p->seed;
+	t->signature_offset = p->signature_offset;
+	t->key_offset = p->key_offset;
+
+	/* Internal */
+	t->bucket_mask = t->n_buckets - 1;
+	t->key_size_shl = __builtin_ctzl(p->key_size);
+	t->data_size_shl = __builtin_ctzl(entry_size);
+
+	/* Tables */
+	bucket_offset = 0;
+	key_offset = bucket_offset + bucket_sz;
+	key_stack_offset = key_offset + key_sz;
+	data_offset = key_stack_offset + key_stack_sz;
+
+	t->buckets = (struct bucket *) &t->memory[bucket_offset];
+	t->key_mem = &t->memory[key_offset];
+	t->key_stack = (uint32_t *) &t->memory[key_stack_offset];
+	t->data_mem = &t->memory[data_offset];
+
+	/* Key stack */
+	for (i = 0; i < t->n_keys; i++)
+		t->key_stack[i] = t->n_keys - 1 - i;
+	t->key_stack_tos = t->n_keys;
+
+	/* LRU */
+	for (i = 0; i < t->n_buckets; i++) {
+		struct bucket *bkt = &t->buckets[i];
+
+		lru_init(bkt);
+	}
+
+	return t;
+}
+
+static int
+rte_table_hash_lru_free(void *table)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+
+	/* Check input parameters */
+	if (t == NULL)
+		return -EINVAL;
+
+	rte_free(t);
+	return 0;
+}
+
+static int
+rte_table_hash_lru_entry_add(void *table, void *key, void *entry,
+	int *key_found, void **entry_ptr)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+	struct bucket *bkt;
+	uint64_t sig;
+	uint32_t bkt_index, i;
+
+	sig = t->f_hash(key, t->key_size, t->seed);
+	bkt_index = sig & t->bucket_mask;
+	bkt = &t->buckets[bkt_index];
+	sig = (sig >> 16) | 1LLU;
+
+	/* Key is present in the bucket */
+	for (i = 0; i < KEYS_PER_BUCKET; i++) {
+		uint64_t bkt_sig = (uint64_t) bkt->sig[i];
+		uint32_t bkt_key_index = bkt->key_pos[i];
+		uint8_t *bkt_key = &t->key_mem[bkt_key_index <<
+			t->key_size_shl];
+
+		if ((sig == bkt_sig) && (memcmp(key, bkt_key, t->key_size)
+			== 0)) {
+			uint8_t *data = &t->data_mem[bkt_key_index <<
+				t->data_size_shl];
+
+			memcpy(data, entry, t->entry_size);
+			lru_update(bkt, i);
+			*key_found = 1;
+			*entry_ptr = (void *) data;
+			return 0;
+		}
+	}
+
+	/* Key is not present in the bucket */
+	for (i = 0; i < KEYS_PER_BUCKET; i++) {
+		uint64_t bkt_sig = (uint64_t) bkt->sig[i];
+
+		if (bkt_sig == 0) {
+			uint32_t bkt_key_index;
+			uint8_t *bkt_key, *data;
+
+			/* Allocate new key */
+			if (t->key_stack_tos == 0) {
+				/* No keys available */
+				return -ENOSPC;
+			}
+			bkt_key_index = t->key_stack[--t->key_stack_tos];
+
+			/* Install new key */
+			bkt_key = &t->key_mem[bkt_key_index << t->key_size_shl];
+			data = &t->data_mem[bkt_key_index << t->data_size_shl];
+
+			bkt->sig[i] = (uint16_t) sig;
+			bkt->key_pos[i] = bkt_key_index;
+			memcpy(bkt_key, key, t->key_size);
+			memcpy(data, entry, t->entry_size);
+			lru_update(bkt, i);
+
+			*key_found = 0;
+			*entry_ptr = (void *) data;
+			return 0;
+		}
+	}
+
+	/* Bucket full */
+	{
+		uint64_t pos = lru_pos(bkt);
+		uint32_t bkt_key_index = bkt->key_pos[pos];
+		uint8_t *bkt_key = &t->key_mem[bkt_key_index <<
+			t->key_size_shl];
+		uint8_t *data = &t->data_mem[bkt_key_index << t->data_size_shl];
+
+		bkt->sig[pos] = (uint16_t) sig;
+		memcpy(bkt_key, key, t->key_size);
+		memcpy(data, entry, t->entry_size);
+		lru_update(bkt, pos);
+
+		*key_found = 0;
+		*entry_ptr = (void *) data;
+		return 0;
+	}
+}
+
+static int
+rte_table_hash_lru_entry_delete(void *table, void *key, int *key_found,
+	void *entry)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+	struct bucket *bkt;
+	uint64_t sig;
+	uint32_t bkt_index, i;
+
+	sig = t->f_hash(key, t->key_size, t->seed);
+	bkt_index = sig & t->bucket_mask;
+	bkt = &t->buckets[bkt_index];
+	sig = (sig >> 16) | 1LLU;
+
+	/* Key is present in the bucket */
+	for (i = 0; i < KEYS_PER_BUCKET; i++) {
+		uint64_t bkt_sig = (uint64_t) bkt->sig[i];
+		uint32_t bkt_key_index = bkt->key_pos[i];
+		uint8_t *bkt_key = &t->key_mem[bkt_key_index <<
+			t->key_size_shl];
+
+		if ((sig == bkt_sig) &&
+			(memcmp(key, bkt_key, t->key_size) == 0)) {
+			uint8_t *data = &t->data_mem[bkt_key_index <<
+				t->data_size_shl];
+
+			bkt->sig[i] = 0;
+			t->key_stack[t->key_stack_tos++] = bkt_key_index;
+			*key_found = 1;
+			memcpy(entry, data, t->entry_size);
+			return 0;
+		}
+	}
+
+	/* Key is not present in the bucket */
+	*key_found = 0;
+	return 0;
+}
+
+static int rte_table_hash_lru_lookup_unoptimized(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries,
+	int dosig)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+	uint64_t pkts_mask_out = 0;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_LRU_STATS_PKTS_IN_ADD(t, n_pkts_in);
+
+	for ( ; pkts_mask; ) {
+		struct bucket *bkt;
+		struct rte_mbuf *pkt;
+		uint8_t *key;
+		uint64_t pkt_mask, sig;
+		uint32_t pkt_index, bkt_index, i;
+
+		pkt_index = __builtin_ctzll(pkts_mask);
+		pkt_mask = 1LLU << pkt_index;
+		pkts_mask &= ~pkt_mask;
+
+		pkt = pkts[pkt_index];
+		key = RTE_MBUF_METADATA_UINT8_PTR(pkt, t->key_offset);
+		if (dosig)
+			sig = (uint64_t) t->f_hash(key, t->key_size, t->seed);
+		else
+			sig = RTE_MBUF_METADATA_UINT32(pkt,
+				t->signature_offset);
+
+		bkt_index = sig & t->bucket_mask;
+		bkt = &t->buckets[bkt_index];
+		sig = (sig >> 16) | 1LLU;
+
+		/* Key is present in the bucket */
+		for (i = 0; i < KEYS_PER_BUCKET; i++) {
+			uint64_t bkt_sig = (uint64_t) bkt->sig[i];
+			uint32_t bkt_key_index = bkt->key_pos[i];
+			uint8_t *bkt_key = &t->key_mem[bkt_key_index <<
+				t->key_size_shl];
+
+			if ((sig == bkt_sig) && (memcmp(key, bkt_key,
+				t->key_size) == 0)) {
+				uint8_t *data = &t->data_mem[bkt_key_index <<
+					t->data_size_shl];
+
+				lru_update(bkt, i);
+				pkts_mask_out |= pkt_mask;
+				entries[pkt_index] = (void *) data;
+				break;
+			}
+		}
+	}
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_LRU_STATS_PKTS_LOOKUP_MISS(t, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+	return 0;
+}
+
+/***
+*
+* mask = match bitmask
+* match = at least one match
+* match_many = more than one match
+* match_pos = position of first match
+*
+* ----------------------------------------
+* mask		 match	 match_many	  match_pos
+* ----------------------------------------
+* 0000		 0		 0			  00
+* 0001		 1		 0			  00
+* 0010		 1		 0			  01
+* 0011		 1		 1			  00
+* ----------------------------------------
+* 0100		 1		 0			  10
+* 0101		 1		 1			  00
+* 0110		 1		 1			  01
+* 0111		 1		 1			  00
+* ----------------------------------------
+* 1000		 1		 0			  11
+* 1001		 1		 1			  00
+* 1010		 1		 1			  01
+* 1011		 1		 1			  00
+* ----------------------------------------
+* 1100		 1		 1			  10
+* 1101		 1		 1			  00
+* 1110		 1		 1			  01
+* 1111		 1		 1			  00
+* ----------------------------------------
+*
+* match = 1111_1111_1111_1110
+* match_many = 1111_1110_1110_1000
+* match_pos = 0001_0010_0001_0011__0001_0010_0001_0000
+*
+* match = 0xFFFELLU
+* match_many = 0xFEE8LLU
+* match_pos = 0x12131210LLU
+*
+***/
+
+#define LUT_MATCH						0xFFFELLU
+#define LUT_MATCH_MANY						0xFEE8LLU
+#define LUT_MATCH_POS						0x12131210LLU
+
+#define lookup_cmp_sig(mbuf_sig, bucket, match, match_many, match_pos)\
+{								\
+	uint64_t bucket_sig[4], mask[4], mask_all;		\
+								\
+	bucket_sig[0] = bucket->sig[0];				\
+	bucket_sig[1] = bucket->sig[1];				\
+	bucket_sig[2] = bucket->sig[2];				\
+	bucket_sig[3] = bucket->sig[3];				\
+								\
+	bucket_sig[0] ^= mbuf_sig;				\
+	bucket_sig[1] ^= mbuf_sig;				\
+	bucket_sig[2] ^= mbuf_sig;				\
+	bucket_sig[3] ^= mbuf_sig;				\
+								\
+	mask[0] = 0;						\
+	mask[1] = 0;						\
+	mask[2] = 0;						\
+	mask[3] = 0;						\
+								\
+	if (bucket_sig[0] == 0)					\
+		mask[0] = 1;					\
+	if (bucket_sig[1] == 0)					\
+		mask[1] = 2;					\
+	if (bucket_sig[2] == 0)					\
+		mask[2] = 4;					\
+	if (bucket_sig[3] == 0)					\
+		mask[3] = 8;					\
+								\
+	mask_all = (mask[0] | mask[1]) | (mask[2] | mask[3]);	\
+								\
+	match = (LUT_MATCH >> mask_all) & 1;			\
+	match_many = (LUT_MATCH_MANY >> mask_all) & 1;		\
+	match_pos = (LUT_MATCH_POS >> (mask_all << 1)) & 3;	\
+}
+
+#define lookup_cmp_key(mbuf, key, match_key, f)			\
+{								\
+	uint64_t *pkt_key = RTE_MBUF_METADATA_UINT64_PTR(mbuf, f->key_offset);\
+	uint64_t *bkt_key = (uint64_t *) key;			\
+								\
+	switch (f->key_size) {					\
+	case 8:							\
+	{							\
+		uint64_t xor = pkt_key[0] ^ bkt_key[0];		\
+		match_key = 0;					\
+		if (xor == 0)					\
+			match_key = 1;				\
+	}							\
+	break;							\
+								\
+	case 16:						\
+	{							\
+		uint64_t xor[2], or;				\
+								\
+		xor[0] = pkt_key[0] ^ bkt_key[0];		\
+		xor[1] = pkt_key[1] ^ bkt_key[1];		\
+		or = xor[0] | xor[1];				\
+		match_key = 0;					\
+		if (or == 0)					\
+			match_key = 1;				\
+	}							\
+	break;							\
+								\
+	case 32:						\
+	{							\
+		uint64_t xor[4], or;				\
+								\
+		xor[0] = pkt_key[0] ^ bkt_key[0];		\
+		xor[1] = pkt_key[1] ^ bkt_key[1];		\
+		xor[2] = pkt_key[2] ^ bkt_key[2];		\
+		xor[3] = pkt_key[3] ^ bkt_key[3];		\
+		or = xor[0] | xor[1] | xor[2] | xor[3];		\
+		match_key = 0;					\
+		if (or == 0)					\
+			match_key = 1;				\
+	}							\
+	break;							\
+								\
+	case 64:						\
+	{							\
+		uint64_t xor[8], or;				\
+								\
+		xor[0] = pkt_key[0] ^ bkt_key[0];		\
+		xor[1] = pkt_key[1] ^ bkt_key[1];		\
+		xor[2] = pkt_key[2] ^ bkt_key[2];		\
+		xor[3] = pkt_key[3] ^ bkt_key[3];		\
+		xor[4] = pkt_key[4] ^ bkt_key[4];		\
+		xor[5] = pkt_key[5] ^ bkt_key[5];		\
+		xor[6] = pkt_key[6] ^ bkt_key[6];		\
+		xor[7] = pkt_key[7] ^ bkt_key[7];		\
+		or = xor[0] | xor[1] | xor[2] | xor[3] |	\
+			xor[4] | xor[5] | xor[6] | xor[7];	\
+		match_key = 0;					\
+		if (or == 0)					\
+			match_key = 1;				\
+	}							\
+	break;							\
+								\
+	default:						\
+		match_key = 0;					\
+		if (memcmp(pkt_key, bkt_key, f->key_size) == 0)	\
+			match_key = 1;				\
+	}							\
+}
+
+#define lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index)\
+{								\
+	uint64_t pkt00_mask, pkt01_mask;			\
+	struct rte_mbuf *mbuf00, *mbuf01;			\
+	uint32_t key_offset = t->key_offset;		\
+								\
+	pkt00_index = __builtin_ctzll(pkts_mask);		\
+	pkt00_mask = 1LLU << pkt00_index;			\
+	pkts_mask &= ~pkt00_mask;				\
+	mbuf00 = pkts[pkt00_index];				\
+								\
+	pkt01_index = __builtin_ctzll(pkts_mask);		\
+	pkt01_mask = 1LLU << pkt01_index;			\
+	pkts_mask &= ~pkt01_mask;				\
+	mbuf01 = pkts[pkt01_index];				\
+								\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf00, key_offset));\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf01, key_offset));\
+}
+
+#define lookup2_stage0_with_odd_support(t, g, pkts, pkts_mask, pkt00_index, \
+	pkt01_index)						\
+{								\
+	uint64_t pkt00_mask, pkt01_mask;			\
+	struct rte_mbuf *mbuf00, *mbuf01;			\
+	uint32_t key_offset = t->key_offset;		\
+								\
+	pkt00_index = __builtin_ctzll(pkts_mask);		\
+	pkt00_mask = 1LLU << pkt00_index;			\
+	pkts_mask &= ~pkt00_mask;				\
+	mbuf00 = pkts[pkt00_index];				\
+								\
+	pkt01_index = __builtin_ctzll(pkts_mask);		\
+	if (pkts_mask == 0)					\
+		pkt01_index = pkt00_index;			\
+								\
+	pkt01_mask = 1LLU << pkt01_index;			\
+	pkts_mask &= ~pkt01_mask;				\
+	mbuf01 = pkts[pkt01_index];				\
+								\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf00, key_offset));\
+	rte_prefetch0(RTE_MBUF_METADATA_UINT8_PTR(mbuf01, key_offset));\
+}
+
+#define lookup2_stage1(t, g, pkts, pkt10_index, pkt11_index)	\
+{								\
+	struct grinder *g10, *g11;				\
+	uint64_t sig10, sig11, bkt10_index, bkt11_index;	\
+	struct rte_mbuf *mbuf10, *mbuf11;			\
+	struct bucket *bkt10, *bkt11, *buckets = t->buckets;	\
+	uint64_t bucket_mask = t->bucket_mask;			\
+	uint32_t signature_offset = t->signature_offset;	\
+								\
+	mbuf10 = pkts[pkt10_index];				\
+	sig10 = (uint64_t) RTE_MBUF_METADATA_UINT32(mbuf10, signature_offset);\
+	bkt10_index = sig10 & bucket_mask;			\
+	bkt10 = &buckets[bkt10_index];				\
+								\
+	mbuf11 = pkts[pkt11_index];				\
+	sig11 = (uint64_t) RTE_MBUF_METADATA_UINT32(mbuf11, signature_offset);\
+	bkt11_index = sig11 & bucket_mask;			\
+	bkt11 = &buckets[bkt11_index];				\
+								\
+	rte_prefetch0(bkt10);					\
+	rte_prefetch0(bkt11);					\
+								\
+	g10 = &g[pkt10_index];					\
+	g10->sig = sig10;					\
+	g10->bkt = bkt10;					\
+								\
+	g11 = &g[pkt11_index];					\
+	g11->sig = sig11;					\
+	g11->bkt = bkt11;					\
+}
+
+#define lookup2_stage1_dosig(t, g, pkts, pkt10_index, pkt11_index)\
+{								\
+	struct grinder *g10, *g11;				\
+	uint64_t sig10, sig11, bkt10_index, bkt11_index;	\
+	struct rte_mbuf *mbuf10, *mbuf11;			\
+	struct bucket *bkt10, *bkt11, *buckets = t->buckets;	\
+	uint8_t *key10, *key11;					\
+	uint64_t bucket_mask = t->bucket_mask;			\
+	rte_table_hash_op_hash f_hash = t->f_hash;		\
+	uint64_t seed = t->seed;				\
+	uint32_t key_size = t->key_size;			\
+	uint32_t key_offset = t->key_offset;			\
+								\
+	mbuf10 = pkts[pkt10_index];				\
+	key10 = RTE_MBUF_METADATA_UINT8_PTR(mbuf10, key_offset);\
+	sig10 = (uint64_t) f_hash(key10, key_size, seed);	\
+	bkt10_index = sig10 & bucket_mask;			\
+	bkt10 = &buckets[bkt10_index];				\
+								\
+	mbuf11 = pkts[pkt11_index];				\
+	key11 = RTE_MBUF_METADATA_UINT8_PTR(mbuf11, key_offset);\
+	sig11 = (uint64_t) f_hash(key11, key_size, seed);	\
+	bkt11_index = sig11 & bucket_mask;			\
+	bkt11 = &buckets[bkt11_index];				\
+								\
+	rte_prefetch0(bkt10);					\
+	rte_prefetch0(bkt11);					\
+								\
+	g10 = &g[pkt10_index];					\
+	g10->sig = sig10;					\
+	g10->bkt = bkt10;					\
+								\
+	g11 = &g[pkt11_index];					\
+	g11->sig = sig11;					\
+	g11->bkt = bkt11;					\
+}
+
+#define lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many)\
+{								\
+	struct grinder *g20, *g21;				\
+	uint64_t sig20, sig21;					\
+	struct bucket *bkt20, *bkt21;				\
+	uint8_t *key20, *key21, *key_mem = t->key_mem;		\
+	uint64_t match20, match21, match_many20, match_many21;	\
+	uint64_t match_pos20, match_pos21;			\
+	uint32_t key20_index, key21_index, key_size_shl = t->key_size_shl;\
+								\
+	g20 = &g[pkt20_index];					\
+	sig20 = g20->sig;					\
+	bkt20 = g20->bkt;					\
+	sig20 = (sig20 >> 16) | 1LLU;				\
+	lookup_cmp_sig(sig20, bkt20, match20, match_many20, match_pos20);\
+	match20 <<= pkt20_index;				\
+	match_many20 <<= pkt20_index;				\
+	key20_index = bkt20->key_pos[match_pos20];		\
+	key20 = &key_mem[key20_index << key_size_shl];		\
+								\
+	g21 = &g[pkt21_index];					\
+	sig21 = g21->sig;					\
+	bkt21 = g21->bkt;					\
+	sig21 = (sig21 >> 16) | 1LLU;				\
+	lookup_cmp_sig(sig21, bkt21, match21, match_many21, match_pos21);\
+	match21 <<= pkt21_index;				\
+	match_many21 <<= pkt21_index;				\
+	key21_index = bkt21->key_pos[match_pos21];		\
+	key21 = &key_mem[key21_index << key_size_shl];		\
+								\
+	rte_prefetch0(key20);					\
+	rte_prefetch0(key21);					\
+								\
+	pkts_mask_match_many |= match_many20 | match_many21;	\
+								\
+	g20->match = match20;					\
+	g20->match_pos = match_pos20;				\
+	g20->key_index = key20_index;				\
+								\
+	g21->match = match21;					\
+	g21->match_pos = match_pos21;				\
+	g21->key_index = key21_index;				\
+}
+
+#define lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out, \
+	entries)						\
+{								\
+	struct grinder *g30, *g31;				\
+	struct rte_mbuf *mbuf30, *mbuf31;			\
+	struct bucket *bkt30, *bkt31;				\
+	uint8_t *key30, *key31, *key_mem = t->key_mem;		\
+	uint8_t *data30, *data31, *data_mem = t->data_mem;	\
+	uint64_t match30, match31, match_pos30, match_pos31;	\
+	uint64_t match_key30, match_key31, match_keys;		\
+	uint32_t key30_index, key31_index;			\
+	uint32_t key_size_shl = t->key_size_shl;		\
+	uint32_t data_size_shl = t->data_size_shl;		\
+								\
+	mbuf30 = pkts[pkt30_index];				\
+	g30 = &g[pkt30_index];					\
+	bkt30 = g30->bkt;					\
+	match30 = g30->match;					\
+	match_pos30 = g30->match_pos;				\
+	key30_index = g30->key_index;				\
+	key30 = &key_mem[key30_index << key_size_shl];		\
+	lookup_cmp_key(mbuf30, key30, match_key30, t);		\
+	match_key30 <<= pkt30_index;				\
+	match_key30 &= match30;					\
+	data30 = &data_mem[key30_index << data_size_shl];	\
+	entries[pkt30_index] = data30;				\
+								\
+	mbuf31 = pkts[pkt31_index];				\
+	g31 = &g[pkt31_index];					\
+	bkt31 = g31->bkt;					\
+	match31 = g31->match;					\
+	match_pos31 = g31->match_pos;				\
+	key31_index = g31->key_index;				\
+	key31 = &key_mem[key31_index << key_size_shl];		\
+	lookup_cmp_key(mbuf31, key31, match_key31, t);		\
+	match_key31 <<= pkt31_index;				\
+	match_key31 &= match31;					\
+	data31 = &data_mem[key31_index << data_size_shl];	\
+	entries[pkt31_index] = data31;				\
+								\
+	rte_prefetch0(data30);					\
+	rte_prefetch0(data31);					\
+								\
+	match_keys = match_key30 | match_key31;			\
+	pkts_mask_out |= match_keys;				\
+								\
+	if (match_key30 == 0)					\
+		match_pos30 = 4;				\
+	lru_update(bkt30, match_pos30);				\
+								\
+	if (match_key31 == 0)					\
+		match_pos31 = 4;				\
+	lru_update(bkt31, match_pos31);				\
+}
+
+/***
+* The lookup function implements a 4-stage pipeline, with each stage processing
+* two different packets. The purpose of pipelined implementation is to hide the
+* latency of prefetching the data structures and loosen the data dependency
+* between instructions.
+*
+*   p00  _______   p10  _______   p20  _______   p30  _______
+* ----->|       |----->|       |----->|       |----->|       |----->
+*       |   0   |      |   1   |      |   2   |      |   3   |
+* ----->|_______|----->|_______|----->|_______|----->|_______|----->
+*   p01            p11            p21            p31
+*
+* The naming convention is:
+*	  pXY = packet Y of stage X, X = 0 .. 3, Y = 0 .. 1
+*
+***/
+static int rte_table_hash_lru_lookup(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+	struct grinder *g = t->grinders;
+	uint64_t pkt00_index, pkt01_index, pkt10_index, pkt11_index;
+	uint64_t pkt20_index, pkt21_index, pkt30_index, pkt31_index;
+	uint64_t pkts_mask_out = 0, pkts_mask_match_many = 0;
+	int status = 0;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_LRU_STATS_PKTS_IN_ADD(t, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 7 packets */
+	if (__builtin_popcountll(pkts_mask) < 7)
+		return rte_table_hash_lru_lookup_unoptimized(table, pkts,
+			pkts_mask, lookup_hit_mask, entries, 0);
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index);
+
+	/* Pipeline feed */
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(t, g, pkts, pkt10_index, pkt11_index);
+
+	/* Pipeline feed */
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(t, g, pkts, pkt10_index, pkt11_index);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many);
+
+	/*
+	* Pipeline run
+	*
+	*/
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		pkt30_index = pkt20_index;
+		pkt31_index = pkt21_index;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(t, g, pkts, pkts_mask,
+			pkt00_index, pkt01_index);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1(t, g, pkts, pkt10_index, pkt11_index);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2(t, g, pkt20_index, pkt21_index,
+			pkts_mask_match_many);
+
+		/* Pipeline stage 3 */
+		lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index,
+			pkts_mask_out, entries);
+	}
+
+	/* Pipeline feed */
+	pkt30_index = pkt20_index;
+	pkt31_index = pkt21_index;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1(t, g, pkts, pkt10_index, pkt11_index);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many);
+
+	/* Pipeline stage 3 */
+	lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out,
+		entries);
+
+	/* Pipeline feed */
+	pkt30_index = pkt20_index;
+	pkt31_index = pkt21_index;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many);
+
+	/* Pipeline stage 3 */
+	lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out,
+		entries);
+
+	/* Pipeline feed */
+	pkt30_index = pkt20_index;
+	pkt31_index = pkt21_index;
+
+	/* Pipeline stage 3 */
+	lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out,
+		entries);
+
+	/* Slow path */
+	pkts_mask_match_many &= ~pkts_mask_out;
+	if (pkts_mask_match_many) {
+		uint64_t pkts_mask_out_slow = 0;
+
+		status = rte_table_hash_lru_lookup_unoptimized(table, pkts,
+			pkts_mask_match_many, &pkts_mask_out_slow, entries, 0);
+		pkts_mask_out |= pkts_mask_out_slow;
+	}
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_LRU_STATS_PKTS_LOOKUP_MISS(t, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+	return status;
+}
+
+static int rte_table_hash_lru_lookup_dosig(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+	struct grinder *g = t->grinders;
+	uint64_t pkt00_index, pkt01_index, pkt10_index, pkt11_index;
+	uint64_t pkt20_index, pkt21_index, pkt30_index, pkt31_index;
+	uint64_t pkts_mask_out = 0, pkts_mask_match_many = 0;
+	int status = 0;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_HASH_LRU_STATS_PKTS_IN_ADD(t, n_pkts_in);
+
+	/* Cannot run the pipeline with less than 7 packets */
+	if (__builtin_popcountll(pkts_mask) < 7)
+		return rte_table_hash_lru_lookup_unoptimized(table, pkts,
+			pkts_mask, lookup_hit_mask, entries, 1);
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index);
+
+	/* Pipeline feed */
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(t, g, pkts, pkt10_index, pkt11_index);
+
+	/* Pipeline feed */
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 0 */
+	lookup2_stage0(t, g, pkts, pkts_mask, pkt00_index, pkt01_index);
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(t, g, pkts, pkt10_index, pkt11_index);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many);
+
+	/*
+	* Pipeline run
+	*
+	*/
+	for ( ; pkts_mask; ) {
+		/* Pipeline feed */
+		pkt30_index = pkt20_index;
+		pkt31_index = pkt21_index;
+		pkt20_index = pkt10_index;
+		pkt21_index = pkt11_index;
+		pkt10_index = pkt00_index;
+		pkt11_index = pkt01_index;
+
+		/* Pipeline stage 0 */
+		lookup2_stage0_with_odd_support(t, g, pkts, pkts_mask,
+			pkt00_index, pkt01_index);
+
+		/* Pipeline stage 1 */
+		lookup2_stage1_dosig(t, g, pkts, pkt10_index, pkt11_index);
+
+		/* Pipeline stage 2 */
+		lookup2_stage2(t, g, pkt20_index, pkt21_index,
+			pkts_mask_match_many);
+
+		/* Pipeline stage 3 */
+		lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index,
+			pkts_mask_out, entries);
+	}
+
+	/* Pipeline feed */
+	pkt30_index = pkt20_index;
+	pkt31_index = pkt21_index;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+	pkt10_index = pkt00_index;
+	pkt11_index = pkt01_index;
+
+	/* Pipeline stage 1 */
+	lookup2_stage1_dosig(t, g, pkts, pkt10_index, pkt11_index);
+
+	/* Pipeline stage 2 */
+	lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many);
+
+	/* Pipeline stage 3 */
+	lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out,
+		entries);
+
+	/* Pipeline feed */
+	pkt30_index = pkt20_index;
+	pkt31_index = pkt21_index;
+	pkt20_index = pkt10_index;
+	pkt21_index = pkt11_index;
+
+	/* Pipeline stage 2 */
+	lookup2_stage2(t, g, pkt20_index, pkt21_index, pkts_mask_match_many);
+
+	/* Pipeline stage 3 */
+	lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out,
+		entries);
+
+	/* Pipeline feed */
+	pkt30_index = pkt20_index;
+	pkt31_index = pkt21_index;
+
+	/* Pipeline stage 3 */
+	lookup2_stage3(t, g, pkts, pkt30_index, pkt31_index, pkts_mask_out,
+		entries);
+
+	/* Slow path */
+	pkts_mask_match_many &= ~pkts_mask_out;
+	if (pkts_mask_match_many) {
+		uint64_t pkts_mask_out_slow = 0;
+
+		status = rte_table_hash_lru_lookup_unoptimized(table, pkts,
+			pkts_mask_match_many, &pkts_mask_out_slow, entries, 1);
+		pkts_mask_out |= pkts_mask_out_slow;
+	}
+
+	*lookup_hit_mask = pkts_mask_out;
+	RTE_TABLE_HASH_LRU_STATS_PKTS_LOOKUP_MISS(t, n_pkts_in - __builtin_popcountll(pkts_mask_out));
+	return status;
+}
+
+static int
+rte_table_hash_lru_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+	struct rte_table_hash *t = (struct rte_table_hash *) table;
+
+	if (stats != NULL)
+		memcpy(stats, &t->stats, sizeof(t->stats));
+
+	if (clear)
+		memset(&t->stats, 0, sizeof(t->stats));
+
+	return 0;
+}
+
+struct rte_table_ops rte_table_hash_lru_ops = {
+	.f_create = rte_table_hash_lru_create,
+	.f_free = rte_table_hash_lru_free,
+	.f_add = rte_table_hash_lru_entry_add,
+	.f_delete = rte_table_hash_lru_entry_delete,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_hash_lru_lookup,
+	.f_stats = rte_table_hash_lru_stats_read,
+};
+
+struct rte_table_ops rte_table_hash_lru_dosig_ops = {
+	.f_create = rte_table_hash_lru_create,
+	.f_free = rte_table_hash_lru_free,
+	.f_add = rte_table_hash_lru_entry_add,
+	.f_delete = rte_table_hash_lru_entry_delete,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_hash_lru_lookup_dosig,
+	.f_stats = rte_table_hash_lru_stats_read,
+};
diff --git a/lib/librte_table/rte_table_lpm.c b/lib/librte_table/rte_table_lpm.c
new file mode 100644
index 00000000..cdeb0f5a
--- /dev/null
+++ b/lib/librte_table/rte_table_lpm.c
@@ -0,0 +1,393 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <string.h>
+#include <stdio.h>
+
+#include <rte_common.h>
+#include <rte_mbuf.h>
+#include <rte_memory.h>
+#include <rte_malloc.h>
+#include <rte_byteorder.h>
+#include <rte_log.h>
+#include <rte_lpm.h>
+
+#include "rte_table_lpm.h"
+
+#define RTE_TABLE_LPM_MAX_NEXT_HOPS                        256
+
+#ifdef RTE_TABLE_STATS_COLLECT
+
+#define RTE_TABLE_LPM_STATS_PKTS_IN_ADD(table, val) \
+	table->stats.n_pkts_in += val
+#define RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(table, val) \
+	table->stats.n_pkts_lookup_miss += val
+
+#else
+
+#define RTE_TABLE_LPM_STATS_PKTS_IN_ADD(table, val)
+#define RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(table, val)
+
+#endif
+
+struct rte_table_lpm {
+	struct rte_table_stats stats;
+
+	/* Input parameters */
+	uint32_t entry_size;
+	uint32_t entry_unique_size;
+	uint32_t n_rules;
+	uint32_t offset;
+
+	/* Handle to low-level LPM table */
+	struct rte_lpm *lpm;
+
+	/* Next Hop Table (NHT) */
+	uint32_t nht_users[RTE_TABLE_LPM_MAX_NEXT_HOPS];
+	uint32_t nht[0] __rte_cache_aligned;
+};
+
+static void *
+rte_table_lpm_create(void *params, int socket_id, uint32_t entry_size)
+{
+	struct rte_table_lpm_params *p = (struct rte_table_lpm_params *) params;
+	struct rte_table_lpm *lpm;
+	struct rte_lpm_config lpm_config;
+
+	uint32_t total_size, nht_size;
+
+	/* Check input parameters */
+	if (p == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: NULL input parameters\n", __func__);
+		return NULL;
+	}
+	if (p->n_rules == 0) {
+		RTE_LOG(ERR, TABLE, "%s: Invalid n_rules\n", __func__);
+		return NULL;
+	}
+	if (p->number_tbl8s == 0) {
+		RTE_LOG(ERR, TABLE, "%s: Invalid number_tbl8s\n", __func__);
+		return NULL;
+	}
+	if (p->entry_unique_size == 0) {
+		RTE_LOG(ERR, TABLE, "%s: Invalid entry_unique_size\n",
+			__func__);
+		return NULL;
+	}
+	if (p->entry_unique_size > entry_size) {
+		RTE_LOG(ERR, TABLE, "%s: Invalid entry_unique_size\n",
+			__func__);
+		return NULL;
+	}
+	if (p->name == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: Table name is NULL\n",
+			__func__);
+		return NULL;
+	}
+	entry_size = RTE_ALIGN(entry_size, sizeof(uint64_t));
+
+	/* Memory allocation */
+	nht_size = RTE_TABLE_LPM_MAX_NEXT_HOPS * entry_size;
+	total_size = sizeof(struct rte_table_lpm) + nht_size;
+	lpm = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE,
+		socket_id);
+	if (lpm == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot allocate %u bytes for LPM table\n",
+			__func__, total_size);
+		return NULL;
+	}
+
+	/* LPM low-level table creation */
+	lpm_config.max_rules = p->n_rules;
+	lpm_config.number_tbl8s = p->number_tbl8s;
+	lpm_config.flags = p->flags;
+	lpm->lpm = rte_lpm_create(p->name, socket_id, &lpm_config);
+
+	if (lpm->lpm == NULL) {
+		rte_free(lpm);
+		RTE_LOG(ERR, TABLE, "Unable to create low-level LPM table\n");
+		return NULL;
+	}
+
+	/* Memory initialization */
+	lpm->entry_size = entry_size;
+	lpm->entry_unique_size = p->entry_unique_size;
+	lpm->n_rules = p->n_rules;
+	lpm->offset = p->offset;
+
+	return lpm;
+}
+
+static int
+rte_table_lpm_free(void *table)
+{
+	struct rte_table_lpm *lpm = (struct rte_table_lpm *) table;
+
+	/* Check input parameters */
+	if (lpm == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	/* Free previously allocated resources */
+	rte_lpm_free(lpm->lpm);
+	rte_free(lpm);
+
+	return 0;
+}
+
+static int
+nht_find_free(struct rte_table_lpm *lpm, uint32_t *pos)
+{
+	uint32_t i;
+
+	for (i = 0; i < RTE_TABLE_LPM_MAX_NEXT_HOPS; i++) {
+		if (lpm->nht_users[i] == 0) {
+			*pos = i;
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static int
+nht_find_existing(struct rte_table_lpm *lpm, void *entry, uint32_t *pos)
+{
+	uint32_t i;
+
+	for (i = 0; i < RTE_TABLE_LPM_MAX_NEXT_HOPS; i++) {
+		uint32_t *nht_entry = &lpm->nht[i * lpm->entry_size];
+
+		if ((lpm->nht_users[i] > 0) && (memcmp(nht_entry, entry,
+			lpm->entry_unique_size) == 0)) {
+			*pos = i;
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static int
+rte_table_lpm_entry_add(
+	void *table,
+	void *key,
+	void *entry,
+	int *key_found,
+	void **entry_ptr)
+{
+	struct rte_table_lpm *lpm = (struct rte_table_lpm *) table;
+	struct rte_table_lpm_key *ip_prefix = (struct rte_table_lpm_key *) key;
+	uint32_t nht_pos, nht_pos0_valid;
+	int status;
+	uint32_t nht_pos0 = 0;
+
+	/* Check input parameters */
+	if (lpm == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (ip_prefix == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: ip_prefix parameter is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+	if (entry == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: entry parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	if ((ip_prefix->depth == 0) || (ip_prefix->depth > 32)) {
+		RTE_LOG(ERR, TABLE, "%s: invalid depth (%d)\n",
+			__func__, ip_prefix->depth);
+		return -EINVAL;
+	}
+
+	/* Check if rule is already present in the table */
+	status = rte_lpm_is_rule_present(lpm->lpm, ip_prefix->ip,
+		ip_prefix->depth, &nht_pos0);
+	nht_pos0_valid = status > 0;
+
+	/* Find existing or free NHT entry */
+	if (nht_find_existing(lpm, entry, &nht_pos) == 0) {
+		uint32_t *nht_entry;
+
+		if (nht_find_free(lpm, &nht_pos) == 0) {
+			RTE_LOG(ERR, TABLE, "%s: NHT full\n", __func__);
+			return -1;
+		}
+
+		nht_entry = &lpm->nht[nht_pos * lpm->entry_size];
+		memcpy(nht_entry, entry, lpm->entry_size);
+	}
+
+	/* Add rule to low level LPM table */
+	if (rte_lpm_add(lpm->lpm, ip_prefix->ip, ip_prefix->depth, nht_pos) < 0) {
+		RTE_LOG(ERR, TABLE, "%s: LPM rule add failed\n", __func__);
+		return -1;
+	}
+
+	/* Commit NHT changes */
+	lpm->nht_users[nht_pos]++;
+	lpm->nht_users[nht_pos0] -= nht_pos0_valid;
+
+	*key_found = nht_pos0_valid;
+	*entry_ptr = (void *) &lpm->nht[nht_pos * lpm->entry_size];
+	return 0;
+}
+
+static int
+rte_table_lpm_entry_delete(
+	void *table,
+	void *key,
+	int *key_found,
+	void *entry)
+{
+	struct rte_table_lpm *lpm = (struct rte_table_lpm *) table;
+	struct rte_table_lpm_key *ip_prefix = (struct rte_table_lpm_key *) key;
+	uint32_t nht_pos;
+	int status;
+
+	/* Check input parameters */
+	if (lpm == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (ip_prefix == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: ip_prefix parameter is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+	if ((ip_prefix->depth == 0) || (ip_prefix->depth > 32)) {
+		RTE_LOG(ERR, TABLE, "%s: invalid depth (%d)\n", __func__,
+			ip_prefix->depth);
+		return -EINVAL;
+	}
+
+	/* Return if rule is not present in the table */
+	status = rte_lpm_is_rule_present(lpm->lpm, ip_prefix->ip,
+		ip_prefix->depth, &nht_pos);
+	if (status < 0) {
+		RTE_LOG(ERR, TABLE, "%s: LPM algorithmic error\n", __func__);
+		return -1;
+	}
+	if (status == 0) {
+		*key_found = 0;
+		return 0;
+	}
+
+	/* Delete rule from the low-level LPM table */
+	status = rte_lpm_delete(lpm->lpm, ip_prefix->ip, ip_prefix->depth);
+	if (status) {
+		RTE_LOG(ERR, TABLE, "%s: LPM rule delete failed\n", __func__);
+		return -1;
+	}
+
+	/* Commit NHT changes */
+	lpm->nht_users[nht_pos]--;
+
+	*key_found = 1;
+	if (entry)
+		memcpy(entry, &lpm->nht[nht_pos * lpm->entry_size],
+			lpm->entry_size);
+
+	return 0;
+}
+
+static int
+rte_table_lpm_lookup(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_lpm *lpm = (struct rte_table_lpm *) table;
+	uint64_t pkts_out_mask = 0;
+	uint32_t i;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_LPM_STATS_PKTS_IN_ADD(lpm, n_pkts_in);
+
+	pkts_out_mask = 0;
+	for (i = 0; i < (uint32_t)(RTE_PORT_IN_BURST_SIZE_MAX -
+		__builtin_clzll(pkts_mask)); i++) {
+		uint64_t pkt_mask = 1LLU << i;
+
+		if (pkt_mask & pkts_mask) {
+			struct rte_mbuf *pkt = pkts[i];
+			uint32_t ip = rte_bswap32(
+				RTE_MBUF_METADATA_UINT32(pkt, lpm->offset));
+			int status;
+			uint32_t nht_pos;
+
+			status = rte_lpm_lookup(lpm->lpm, ip, &nht_pos);
+			if (status == 0) {
+				pkts_out_mask |= pkt_mask;
+				entries[i] = (void *) &lpm->nht[nht_pos *
+					lpm->entry_size];
+			}
+		}
+	}
+
+	*lookup_hit_mask = pkts_out_mask;
+	RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(lpm, n_pkts_in - __builtin_popcountll(pkts_out_mask));
+	return 0;
+}
+
+static int
+rte_table_lpm_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+	struct rte_table_lpm *t = (struct rte_table_lpm *) table;
+
+	if (stats != NULL)
+		memcpy(stats, &t->stats, sizeof(t->stats));
+
+	if (clear)
+		memset(&t->stats, 0, sizeof(t->stats));
+
+	return 0;
+}
+
+struct rte_table_ops rte_table_lpm_ops = {
+	.f_create = rte_table_lpm_create,
+	.f_free = rte_table_lpm_free,
+	.f_add = rte_table_lpm_entry_add,
+	.f_delete = rte_table_lpm_entry_delete,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_lpm_lookup,
+	.f_stats = rte_table_lpm_stats_read,
+};
diff --git a/lib/librte_table/rte_table_lpm.h b/lib/librte_table/rte_table_lpm.h
new file mode 100644
index 00000000..f3033234
--- /dev/null
+++ b/lib/librte_table/rte_table_lpm.h
@@ -0,0 +1,124 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __INCLUDE_RTE_TABLE_LPM_H__
+#define __INCLUDE_RTE_TABLE_LPM_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @file
+ * RTE Table LPM for IPv4
+ *
+ * This table uses the Longest Prefix Match (LPM) algorithm to uniquely
+ * associate data to lookup keys.
+ *
+ * Use-case: IP routing table. Routes that are added to the table associate a
+ * next hop to an IP prefix. The IP prefix is specified as IP address and depth
+ * and cover for a multitude of lookup keys (i.e. destination IP addresses)
+ * that all share the same data (i.e. next hop). The next hop information
+ * typically contains the output interface ID, the IP address of the next hop
+ * station (which is part of the same IP network the output interface is
+ * connected to) and other flags and counters.
+ *
+ * The LPM primitive only allows associating an 8-bit number (next hop ID) to
+ * an IP prefix, while a routing table can potentially contain thousands of
+ * routes or even more. This means that the same next hop ID (and next hop
+ * information) has to be shared by multiple routes, which makes sense, as
+ * multiple remote networks could be reached through the same next hop.
+ * Therefore, when a route is added or updated, the LPM table has to check
+ * whether the same next hop is already in use before using a new next hop ID
+ * for this route.
+ *
+ * The comparison between different next hops is done for the first
+ * “entry_unique_size” bytes of the next hop information (configurable
+ * parameter), which have to uniquely identify the next hop, therefore the user
+ * has to carefully manage the format of the LPM table entry (i.e.  the next
+ * hop information) so that any next hop data that changes value during
+ * run-time (e.g. counters) is placed outside of this area.
+ *
+ ***/
+
+#include <stdint.h>
+
+#include "rte_table.h"
+
+/** LPM table parameters */
+struct rte_table_lpm_params {
+	/** Table name */
+	const char *name;
+
+	/** Maximum number of LPM rules (i.e. IP routes) */
+	uint32_t n_rules;
+
+	/**< Number of tbl8s to allocate. */
+	uint32_t number_tbl8s;
+
+	/**< This field is currently unused. */
+	int flags;
+
+	/** Number of bytes at the start of the table entry that uniquely
+	identify the entry. Cannot be bigger than table entry size. */
+	uint32_t entry_unique_size;
+
+	/** Byte offset within input packet meta-data where lookup key (i.e.
+	the destination IP address) is located. */
+	uint32_t offset;
+};
+
+/** LPM table rule (i.e. route), specified as IP prefix. While the key used by
+the lookup operation is the destination IP address (read from the input packet
+meta-data), the entry add and entry delete operations work with LPM rules, with
+each rule covering for a multitude of lookup keys (destination IP addresses)
+that share the same data (next hop). */
+struct rte_table_lpm_key {
+	/** IP address */
+	uint32_t ip;
+
+	/** IP address depth. The most significant "depth" bits of the IP
+	address specify the network part of the IP address, while the rest of
+	the bits specify the host part of the address and are ignored for the
+	purpose of route specification. */
+	uint8_t depth;
+};
+
+/** LPM table operations */
+extern struct rte_table_ops rte_table_lpm_ops;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/lib/librte_table/rte_table_lpm_ipv6.c b/lib/librte_table/rte_table_lpm_ipv6.c
new file mode 100644
index 00000000..836f4cf6
--- /dev/null
+++ b/lib/librte_table/rte_table_lpm_ipv6.c
@@ -0,0 +1,398 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <string.h>
+#include <stdio.h>
+
+#include <rte_common.h>
+#include <rte_mbuf.h>
+#include <rte_memory.h>
+#include <rte_malloc.h>
+#include <rte_byteorder.h>
+#include <rte_log.h>
+#include <rte_lpm6.h>
+
+#include "rte_table_lpm_ipv6.h"
+
+#define RTE_TABLE_LPM_MAX_NEXT_HOPS                        256
+
+#ifdef RTE_TABLE_STATS_COLLECT
+
+#define RTE_TABLE_LPM_IPV6_STATS_PKTS_IN_ADD(table, val) \
+	table->stats.n_pkts_in += val
+#define RTE_TABLE_LPM_IPV6_STATS_PKTS_LOOKUP_MISS(table, val) \
+	table->stats.n_pkts_lookup_miss += val
+
+#else
+
+#define RTE_TABLE_LPM_IPV6_STATS_PKTS_IN_ADD(table, val)
+#define RTE_TABLE_LPM_IPV6_STATS_PKTS_LOOKUP_MISS(table, val)
+
+#endif
+
+struct rte_table_lpm_ipv6 {
+	struct rte_table_stats stats;
+
+	/* Input parameters */
+	uint32_t entry_size;
+	uint32_t entry_unique_size;
+	uint32_t n_rules;
+	uint32_t offset;
+
+	/* Handle to low-level LPM table */
+	struct rte_lpm6 *lpm;
+
+	/* Next Hop Table (NHT) */
+	uint32_t nht_users[RTE_TABLE_LPM_MAX_NEXT_HOPS];
+	uint8_t nht[0] __rte_cache_aligned;
+};
+
+static void *
+rte_table_lpm_ipv6_create(void *params, int socket_id, uint32_t entry_size)
+{
+	struct rte_table_lpm_ipv6_params *p =
+		(struct rte_table_lpm_ipv6_params *) params;
+	struct rte_table_lpm_ipv6 *lpm;
+	struct rte_lpm6_config lpm6_config;
+	uint32_t total_size, nht_size;
+
+	/* Check input parameters */
+	if (p == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: NULL input parameters\n", __func__);
+		return NULL;
+	}
+	if (p->n_rules == 0) {
+		RTE_LOG(ERR, TABLE, "%s: Invalid n_rules\n", __func__);
+		return NULL;
+	}
+	if (p->number_tbl8s == 0) {
+		RTE_LOG(ERR, TABLE, "%s: Invalid n_rules\n", __func__);
+		return NULL;
+	}
+	if (p->entry_unique_size == 0) {
+		RTE_LOG(ERR, TABLE, "%s: Invalid entry_unique_size\n",
+			__func__);
+		return NULL;
+	}
+	if (p->entry_unique_size > entry_size) {
+		RTE_LOG(ERR, TABLE, "%s: Invalid entry_unique_size\n",
+			__func__);
+		return NULL;
+	}
+	if (p->name == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: Table name is NULL\n",
+			__func__);
+		return NULL;
+	}
+	entry_size = RTE_ALIGN(entry_size, sizeof(uint64_t));
+
+	/* Memory allocation */
+	nht_size = RTE_TABLE_LPM_MAX_NEXT_HOPS * entry_size;
+	total_size = sizeof(struct rte_table_lpm_ipv6) + nht_size;
+	lpm = rte_zmalloc_socket("TABLE", total_size, RTE_CACHE_LINE_SIZE,
+		socket_id);
+	if (lpm == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot allocate %u bytes for LPM IPv6 table\n",
+			__func__, total_size);
+		return NULL;
+	}
+
+	/* LPM low-level table creation */
+	lpm6_config.max_rules = p->n_rules;
+	lpm6_config.number_tbl8s = p->number_tbl8s;
+	lpm6_config.flags = 0;
+	lpm->lpm = rte_lpm6_create(p->name, socket_id, &lpm6_config);
+	if (lpm->lpm == NULL) {
+		rte_free(lpm);
+		RTE_LOG(ERR, TABLE,
+			"Unable to create low-level LPM IPv6 table\n");
+		return NULL;
+	}
+
+	/* Memory initialization */
+	lpm->entry_size = entry_size;
+	lpm->entry_unique_size = p->entry_unique_size;
+	lpm->n_rules = p->n_rules;
+	lpm->offset = p->offset;
+
+	return lpm;
+}
+
+static int
+rte_table_lpm_ipv6_free(void *table)
+{
+	struct rte_table_lpm_ipv6 *lpm = (struct rte_table_lpm_ipv6 *) table;
+
+	/* Check input parameters */
+	if (lpm == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	/* Free previously allocated resources */
+	rte_lpm6_free(lpm->lpm);
+	rte_free(lpm);
+
+	return 0;
+}
+
+static int
+nht_find_free(struct rte_table_lpm_ipv6 *lpm, uint32_t *pos)
+{
+	uint32_t i;
+
+	for (i = 0; i < RTE_TABLE_LPM_MAX_NEXT_HOPS; i++) {
+		if (lpm->nht_users[i] == 0) {
+			*pos = i;
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static int
+nht_find_existing(struct rte_table_lpm_ipv6 *lpm, void *entry, uint32_t *pos)
+{
+	uint32_t i;
+
+	for (i = 0; i < RTE_TABLE_LPM_MAX_NEXT_HOPS; i++) {
+		uint8_t *nht_entry = &lpm->nht[i * lpm->entry_size];
+
+		if ((lpm->nht_users[i] > 0) && (memcmp(nht_entry, entry,
+			lpm->entry_unique_size) == 0)) {
+			*pos = i;
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static int
+rte_table_lpm_ipv6_entry_add(
+	void *table,
+	void *key,
+	void *entry,
+	int *key_found,
+	void **entry_ptr)
+{
+	struct rte_table_lpm_ipv6 *lpm = (struct rte_table_lpm_ipv6 *) table;
+	struct rte_table_lpm_ipv6_key *ip_prefix =
+		(struct rte_table_lpm_ipv6_key *) key;
+	uint32_t nht_pos, nht_pos0_valid;
+	int status;
+	uint8_t nht_pos0;
+
+	/* Check input parameters */
+	if (lpm == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (ip_prefix == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: ip_prefix parameter is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+	if (entry == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: entry parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	if ((ip_prefix->depth == 0) || (ip_prefix->depth > 128)) {
+		RTE_LOG(ERR, TABLE, "%s: invalid depth (%d)\n", __func__,
+			ip_prefix->depth);
+		return -EINVAL;
+	}
+
+	/* Check if rule is already present in the table */
+	status = rte_lpm6_is_rule_present(lpm->lpm, ip_prefix->ip,
+		ip_prefix->depth, &nht_pos0);
+	nht_pos0_valid = status > 0;
+
+	/* Find existing or free NHT entry */
+	if (nht_find_existing(lpm, entry, &nht_pos) == 0) {
+		uint8_t *nht_entry;
+
+		if (nht_find_free(lpm, &nht_pos) == 0) {
+			RTE_LOG(ERR, TABLE, "%s: NHT full\n", __func__);
+			return -1;
+		}
+
+		nht_entry = &lpm->nht[nht_pos * lpm->entry_size];
+		memcpy(nht_entry, entry, lpm->entry_size);
+	}
+
+	/* Add rule to low level LPM table */
+	if (rte_lpm6_add(lpm->lpm, ip_prefix->ip, ip_prefix->depth,
+		(uint8_t) nht_pos) < 0) {
+		RTE_LOG(ERR, TABLE, "%s: LPM IPv6 rule add failed\n", __func__);
+		return -1;
+	}
+
+	/* Commit NHT changes */
+	lpm->nht_users[nht_pos]++;
+	lpm->nht_users[nht_pos0] -= nht_pos0_valid;
+
+	*key_found = nht_pos0_valid;
+	*entry_ptr = (void *) &lpm->nht[nht_pos * lpm->entry_size];
+	return 0;
+}
+
+static int
+rte_table_lpm_ipv6_entry_delete(
+	void *table,
+	void *key,
+	int *key_found,
+	void *entry)
+{
+	struct rte_table_lpm_ipv6 *lpm = (struct rte_table_lpm_ipv6 *) table;
+	struct rte_table_lpm_ipv6_key *ip_prefix =
+		(struct rte_table_lpm_ipv6_key *) key;
+	uint8_t nht_pos;
+	int status;
+
+	/* Check input parameters */
+	if (lpm == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: table parameter is NULL\n", __func__);
+		return -EINVAL;
+	}
+	if (ip_prefix == NULL) {
+		RTE_LOG(ERR, TABLE, "%s: ip_prefix parameter is NULL\n",
+			__func__);
+		return -EINVAL;
+	}
+	if ((ip_prefix->depth == 0) || (ip_prefix->depth > 128)) {
+		RTE_LOG(ERR, TABLE, "%s: invalid depth (%d)\n", __func__,
+			ip_prefix->depth);
+		return -EINVAL;
+	}
+
+	/* Return if rule is not present in the table */
+	status = rte_lpm6_is_rule_present(lpm->lpm, ip_prefix->ip,
+		ip_prefix->depth, &nht_pos);
+	if (status < 0) {
+		RTE_LOG(ERR, TABLE, "%s: LPM IPv6 algorithmic error\n",
+			__func__);
+		return -1;
+	}
+	if (status == 0) {
+		*key_found = 0;
+		return 0;
+	}
+
+	/* Delete rule from the low-level LPM table */
+	status = rte_lpm6_delete(lpm->lpm, ip_prefix->ip, ip_prefix->depth);
+	if (status) {
+		RTE_LOG(ERR, TABLE, "%s: LPM IPv6 rule delete failed\n",
+			__func__);
+		return -1;
+	}
+
+	/* Commit NHT changes */
+	lpm->nht_users[nht_pos]--;
+
+	*key_found = 1;
+	if (entry)
+		memcpy(entry, &lpm->nht[nht_pos * lpm->entry_size],
+			lpm->entry_size);
+
+	return 0;
+}
+
+static int
+rte_table_lpm_ipv6_lookup(
+	void *table,
+	struct rte_mbuf **pkts,
+	uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	void **entries)
+{
+	struct rte_table_lpm_ipv6 *lpm = (struct rte_table_lpm_ipv6 *) table;
+	uint64_t pkts_out_mask = 0;
+	uint32_t i;
+
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+	RTE_TABLE_LPM_IPV6_STATS_PKTS_IN_ADD(lpm, n_pkts_in);
+
+	pkts_out_mask = 0;
+	for (i = 0; i < (uint32_t)(RTE_PORT_IN_BURST_SIZE_MAX -
+		__builtin_clzll(pkts_mask)); i++) {
+		uint64_t pkt_mask = 1LLU << i;
+
+		if (pkt_mask & pkts_mask) {
+			struct rte_mbuf *pkt = pkts[i];
+			uint8_t *ip = RTE_MBUF_METADATA_UINT8_PTR(pkt,
+				lpm->offset);
+			int status;
+			uint8_t nht_pos;
+
+			status = rte_lpm6_lookup(lpm->lpm, ip, &nht_pos);
+			if (status == 0) {
+				pkts_out_mask |= pkt_mask;
+				entries[i] = (void *) &lpm->nht[nht_pos *
+					lpm->entry_size];
+			}
+		}
+	}
+
+	*lookup_hit_mask = pkts_out_mask;
+	RTE_TABLE_LPM_IPV6_STATS_PKTS_LOOKUP_MISS(lpm, n_pkts_in - __builtin_popcountll(pkts_out_mask));
+	return 0;
+}
+
+static int
+rte_table_lpm_ipv6_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+	struct rte_table_lpm_ipv6 *t = (struct rte_table_lpm_ipv6 *) table;
+
+	if (stats != NULL)
+		memcpy(stats, &t->stats, sizeof(t->stats));
+
+	if (clear)
+		memset(&t->stats, 0, sizeof(t->stats));
+
+	return 0;
+}
+
+struct rte_table_ops rte_table_lpm_ipv6_ops = {
+	.f_create = rte_table_lpm_ipv6_create,
+	.f_free = rte_table_lpm_ipv6_free,
+	.f_add = rte_table_lpm_ipv6_entry_add,
+	.f_delete = rte_table_lpm_ipv6_entry_delete,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_lpm_ipv6_lookup,
+	.f_stats = rte_table_lpm_ipv6_stats_read,
+};
diff --git a/lib/librte_table/rte_table_lpm_ipv6.h b/lib/librte_table/rte_table_lpm_ipv6.h
new file mode 100644
index 00000000..43aea399
--- /dev/null
+++ b/lib/librte_table/rte_table_lpm_ipv6.h
@@ -0,0 +1,122 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __INCLUDE_RTE_TABLE_LPM_IPV6_H__
+#define __INCLUDE_RTE_TABLE_LPM_IPV6_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @file
+ * RTE Table LPM for IPv6
+ *
+ * This table uses the Longest Prefix Match (LPM) algorithm to uniquely
+ * associate data to lookup keys.
+ *
+ * Use-case: IP routing table. Routes that are added to the table associate a
+ * next hop to an IP prefix. The IP prefix is specified as IP address and depth
+ * and cover for a multitude of lookup keys (i.e. destination IP addresses)
+ * that all share the same data (i.e. next hop). The next hop information
+ * typically contains the output interface ID, the IP address of the next hop
+ * station (which is part of the same IP network the output interface is
+ * connected to) and other flags and counters.
+ *
+ * The LPM primitive only allows associating an 8-bit number (next hop ID) to
+ * an IP prefix, while a routing table can potentially contain thousands of
+ * routes or even more. This means that the same next hop ID (and next hop
+ * information) has to be shared by multiple routes, which makes sense, as
+ * multiple remote networks could be reached through the same next hop.
+ * Therefore, when a route is added or updated, the LPM table has to check
+ * whether the same next hop is already in use before using a new next hop ID
+ * for this route.
+ *
+ * The comparison between different next hops is done for the first
+ * “entry_unique_size” bytes of the next hop information (configurable
+ * parameter), which have to uniquely identify the next hop, therefore the user
+ * has to carefully manage the format of the LPM table entry (i.e.  the next
+ * hop information) so that any next hop data that changes value during
+ * run-time (e.g. counters) is placed outside of this area.
+ *
+ ***/
+
+#include <stdint.h>
+
+#include "rte_table.h"
+
+#define RTE_LPM_IPV6_ADDR_SIZE 16
+
+/** LPM table parameters */
+struct rte_table_lpm_ipv6_params {
+	/** Table name */
+	const char *name;
+
+	/** Maximum number of LPM rules (i.e. IP routes) */
+	uint32_t n_rules;
+
+	uint32_t number_tbl8s;
+
+	/** Number of bytes at the start of the table entry that uniquely
+	identify the entry. Cannot be bigger than table entry size. */
+	uint32_t entry_unique_size;
+
+	/** Byte offset within input packet meta-data where lookup key (i.e.
+	the destination IP address) is located. */
+	uint32_t offset;
+};
+
+/** LPM table rule (i.e. route), specified as IP prefix. While the key used by
+the lookup operation is the destination IP address (read from the input packet
+meta-data), the entry add and entry delete operations work with LPM rules, with
+each rule covering for a multitude of lookup keys (destination IP addresses)
+that share the same data (next hop). */
+struct rte_table_lpm_ipv6_key {
+	/** IP address */
+	uint8_t ip[RTE_LPM_IPV6_ADDR_SIZE];
+
+	/** IP address depth. The most significant "depth" bits of the IP
+	address specify the network part of the IP address, while the rest of
+	the bits specify the host part of the address and are ignored for the
+	purpose of route specification. */
+	uint8_t depth;
+};
+
+/** LPM table operations */
+extern struct rte_table_ops rte_table_lpm_ipv6_ops;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/lib/librte_table/rte_table_stub.c b/lib/librte_table/rte_table_stub.c
new file mode 100644
index 00000000..691d681a
--- /dev/null
+++ b/lib/librte_table/rte_table_stub.c
@@ -0,0 +1,121 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <string.h>
+
+#include <rte_mbuf.h>
+#include <rte_malloc.h>
+
+#include "rte_table_stub.h"
+
+#ifdef RTE_TABLE_STATS_COLLECT
+
+#define RTE_TABLE_LPM_STATS_PKTS_IN_ADD(table, val) \
+	table->stats.n_pkts_in += val
+#define RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(table, val) \
+	table->stats.n_pkts_lookup_miss += val
+
+#else
+
+#define RTE_TABLE_LPM_STATS_PKTS_IN_ADD(table, val)
+#define RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(table, val)
+
+#endif
+
+struct rte_table_stub {
+	struct rte_table_stats stats;
+};
+
+static void *
+rte_table_stub_create(__rte_unused void *params,
+		__rte_unused int socket_id,
+		__rte_unused uint32_t entry_size)
+{
+	struct rte_table_stub *stub;
+	uint32_t size;
+
+	size = sizeof(struct rte_table_stub);
+	stub = rte_zmalloc_socket("TABLE", size, RTE_CACHE_LINE_SIZE,
+		socket_id);
+	if (stub == NULL) {
+		RTE_LOG(ERR, TABLE,
+			"%s: Cannot allocate %u bytes for stub table\n",
+			__func__, size);
+		return NULL;
+	}
+
+	return stub;
+}
+
+static int
+rte_table_stub_lookup(
+	__rte_unused void *table,
+	__rte_unused struct rte_mbuf **pkts,
+	__rte_unused uint64_t pkts_mask,
+	uint64_t *lookup_hit_mask,
+	__rte_unused void **entries)
+{
+	__rte_unused struct rte_table_stub *stub = (struct rte_table_stub *) table;
+	__rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+
+	RTE_TABLE_LPM_STATS_PKTS_IN_ADD(stub, n_pkts_in);
+	*lookup_hit_mask = 0;
+	RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(stub, n_pkts_in);
+
+	return 0;
+}
+
+static int
+rte_table_stub_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+	struct rte_table_stub *t = (struct rte_table_stub *) table;
+
+	if (stats != NULL)
+		memcpy(stats, &t->stats, sizeof(t->stats));
+
+	if (clear)
+		memset(&t->stats, 0, sizeof(t->stats));
+
+	return 0;
+}
+
+struct rte_table_ops rte_table_stub_ops = {
+	.f_create = rte_table_stub_create,
+	.f_free = NULL,
+	.f_add = NULL,
+	.f_delete = NULL,
+	.f_add_bulk = NULL,
+	.f_delete_bulk = NULL,
+	.f_lookup = rte_table_stub_lookup,
+	.f_stats = rte_table_stub_stats_read,
+};
diff --git a/lib/librte_table/rte_table_stub.h b/lib/librte_table/rte_table_stub.h
new file mode 100644
index 00000000..e75340b0
--- /dev/null
+++ b/lib/librte_table/rte_table_stub.h
@@ -0,0 +1,62 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __INCLUDE_RTE_TABLE_STUB_H__
+#define __INCLUDE_RTE_TABLE_STUB_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @file
+ * RTE Table Stub
+ *
+ * The stub table lookup operation produces lookup miss for all input packets.
+ *
+ ***/
+
+#include <stdint.h>
+
+#include "rte_table.h"
+
+/** Stub table parameters: NONE */
+
+/** Stub table operations */
+extern struct rte_table_ops rte_table_stub_ops;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/lib/librte_table/rte_table_version.map b/lib/librte_table/rte_table_version.map
new file mode 100644
index 00000000..21386984
--- /dev/null
+++ b/lib/librte_table/rte_table_version.map
@@ -0,0 +1,28 @@
+DPDK_2.0 {
+	global:
+
+	rte_table_acl_ops;
+	rte_table_array_ops;
+	rte_table_hash_ext_ops;
+	rte_table_hash_key8_ext_dosig_ops;
+	rte_table_hash_key8_ext_ops;
+	rte_table_hash_key8_lru_dosig_ops;
+	rte_table_hash_key8_lru_ops;
+	rte_table_hash_key16_ext_ops;
+	rte_table_hash_key16_lru_ops;
+	rte_table_hash_key32_ext_ops;
+	rte_table_hash_key32_lru_ops;
+	rte_table_hash_lru_ops;
+	rte_table_lpm_ipv6_ops;
+	rte_table_lpm_ops;
+	rte_table_stub_ops;
+
+	local: *;
+};
+
+DPDK_2.2 {
+	global:
+
+	rte_table_hash_key16_ext_dosig_ops;
+
+} DPDK_2.0;