diff --git a/lib/librte_hash/Makefile b/lib/librte_hash/Makefile
index 3696cb1..083a9e5 100644
--- a/lib/librte_hash/Makefile
+++ b/lib/librte_hash/Makefile
@@ -50,6 +50,7 @@ SYMLINK-$(CONFIG_RTE_LIBRTE_HASH)-include := rte_hash.h
 SYMLINK-$(CONFIG_RTE_LIBRTE_HASH)-include += rte_hash_crc.h
 SYMLINK-$(CONFIG_RTE_LIBRTE_HASH)-include += rte_jhash.h
 SYMLINK-$(CONFIG_RTE_LIBRTE_HASH)-include += rte_fbk_hash.h
+SYMLINK-$(CONFIG_RTE_LIBRTE_HASH)-include += rte_thash.h
 
 # this lib needs eal
 DEPDIRS-$(CONFIG_RTE_LIBRTE_HASH) += lib/librte_eal lib/librte_malloc
diff --git a/lib/librte_hash/rte_thash.h b/lib/librte_hash/rte_thash.h
new file mode 100644
index 0000000..1acfa3a
--- /dev/null
+++ b/lib/librte_hash/rte_thash.h
@@ -0,0 +1,179 @@
+/*-
+ *   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 _RTE_THASH_H
+#define _RTE_THASH_H
+
+/**
+ * @file
+ *
+ * toeplitz hash functions.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Software implementation of the Toeplitz hash function used by RSS.
+ * Can be used either for packet distribution on single queue NIC
+ * or for simulating of RSS computation on specific NIC (for example
+ * after GRE header decapsulating)
+ */
+
+#include <stdint.h>
+#include <rte_byteorder.h>
+
+enum rte_thash_flag {
+	RTE_THASH_L3 = 0,	//calculate hash tacking into account only l3 header
+	RTE_THASH_L4		//calculate hash tacking into account l4 + l4 headers
+};
+
+/**
+ * Prepare special converted key to use with rte_softrss_be()
+ * @param orig
+ *   pointer to original RSS key
+ * @param targ
+ *   pointer to target RSS key
+ */
+
+static inline void
+rte_convert_rss_key(uint32_t *orig, uint32_t *targ)
+{
+	int i;
+	for (i = 0; i < 10; i++) {
+		targ[i] = rte_be_to_cpu_32(orig[i]);
+	}
+}
+
+/**
+ * Generic implementation. Can be used with original rss_key
+ * All ip's and ports have to be CPU byte order.
+ * @param sip
+ *   Source ip address.
+ * @param dip
+ *   Destination ip address.
+ * @param sp
+ *   Source TCP|UDP port.
+ * @param dp
+ *   Destination TCP|UDP port.
+ * @param flag
+ *   RTE_THASH_L3:	calculate hash tacking into account only sip and dip
+ *   RTE_THASH_L4:	calculate hash tacking into account sip, dip, sp and dp
+ * @param *rss_key
+ *   Pointer to 40-byte RSS hash key.
+ * @return
+ *   Calculated hash value.
+ */
+
+static inline uint32_t
+rte_softrss(uint32_t sip, uint32_t dip, uint16_t sp, uint16_t dp, enum rte_thash_flag flag, uint32_t *rss_key)
+{
+	uint32_t ret = 0;
+	int i;
+	for (i = 0; i < 32; i++) {
+		if (sip & (1 << (31 - i))) {
+			ret ^= (rte_cpu_to_be_32(*rss_key) << i)|(uint32_t)((uint64_t)(rte_cpu_to_be_32(*(rss_key + 1))) >> (32 - i));
+		}
+	}
+	rss_key++;
+	for (i = 0; i < 32; i++) {
+		if (dip & (1 << (31 - i))) {
+			ret ^= (rte_cpu_to_be_32(*rss_key) << i)|(uint32_t)((uint64_t)(rte_cpu_to_be_32(*(rss_key + 1))) >> (32 - i));
+		}
+	}
+        if (flag == RTE_THASH_L4) {
+		rss_key++;
+		for (i = 0; i < 32; i++) {
+			if (((sp<<16)|dp) & (1 << (31 - i))) {
+				ret ^= (rte_cpu_to_be_32(*rss_key) << i)|(uint32_t)((uint64_t)(rte_cpu_to_be_32(*(rss_key + 1))) >> (32 - i));
+			}
+		}
+	}
+	return ret;
+}
+
+/**
+ * Optimized implementation.
+ * If you want the calculated hash value matches NIC RSS value
+ * you have to use special converted key.
+ * All ip's and ports have to be CPU byte order.
+ * @param sip
+ *   Source ip address.
+ * @param dip
+ *   Destination ip address.
+ * @param sp
+ *   Source TCP|UDP port.
+ * @param dp
+ *   Destination TCP|UDP port.
+ * @param flag
+ *   RTE_THASH_L3:	calculate hash tacking into account only sip and dip
+ *   RTE_THASH_L4:	calculate hash tacking into account sip, dip, sp and dp
+ * @param *rss_key
+ *   Pointer to 40-byte RSS hash key.
+ * @return
+ *   Calculated hash value.
+ */
+
+static inline uint32_t
+rte_softrss_be(uint32_t sip, uint32_t dip, uint16_t sp, uint16_t dp, enum rte_thash_flag flag, uint32_t *rss_key)
+{
+	uint32_t ret = 0;
+	int i;
+	for (i = 0; i < 32; i++) {
+		if (sip & (1 << (31 - i))) {
+			ret ^= (*rss_key << i)|(uint32_t)((uint64_t)*(rss_key + 1) >> (32 - i));
+		}
+	}
+	rss_key++;
+	for (i = 0; i < 32; i++) {
+		if (dip & (1 << (31 - i))) {
+			ret ^= (*rss_key << i)|(uint32_t)((uint64_t)*(rss_key + 1) >> (32 - i));
+		}
+	}
+        if (flag == RTE_THASH_L4) {
+		rss_key++;
+		for (i = 0; i < 32; i++) {
+			if (((sp<<16)|dp) & (1 << (31 - i))) {
+				ret ^= (*rss_key << i)|(uint32_t)((uint64_t)*(rss_key + 1) >> (32 - i));
+			}
+		}
+	}
+	return ret;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_THASH_H */
