Imported Upstream version 16.04

Change-Id: I77eadcd8538a9122e4773cbe55b24033dc451757
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>

8 files changed, 2209 insertions, 0 deletions

diff --git a/lib/librte_eal/common/include/generic/rte_atomic.h b/lib/librte_eal/common/include/generic/rte_atomic.h
new file mode 100644
index 00000000..bfb4fe44
--- /dev/null
+++ b/lib/librte_eal/common/include/generic/rte_atomic.h
@@ -0,0 +1,945 @@
+/*-
+ *   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_ATOMIC_H_
+#define _RTE_ATOMIC_H_
+
+/**
+ * @file
+ * Atomic Operations
+ *
+ * This file defines a generic API for atomic operations.
+ */
+
+#include <stdint.h>
+
+#ifdef __DOXYGEN__
+
+/**
+ * General memory barrier.
+ *
+ * Guarantees that the LOAD and STORE operations generated before the
+ * barrier occur before the LOAD and STORE operations generated after.
+ * This function is architecture dependent.
+ */
+static inline void rte_mb(void);
+
+/**
+ * Write memory barrier.
+ *
+ * Guarantees that the STORE operations generated before the barrier
+ * occur before the STORE operations generated after.
+ * This function is architecture dependent.
+ */
+static inline void rte_wmb(void);
+
+/**
+ * Read memory barrier.
+ *
+ * Guarantees that the LOAD operations generated before the barrier
+ * occur before the LOAD operations generated after.
+ * This function is architecture dependent.
+ */
+static inline void rte_rmb(void);
+
+/**
+ * General memory barrier between lcores
+ *
+ * Guarantees that the LOAD and STORE operations that precede the
+ * rte_smp_mb() call are globally visible across the lcores
+ * before the the LOAD and STORE operations that follows it.
+ */
+static inline void rte_smp_mb(void);
+
+/**
+ * Write memory barrier between lcores
+ *
+ * Guarantees that the STORE operations that precede the
+ * rte_smp_wmb() call are globally visible across the lcores
+ * before the the STORE operations that follows it.
+ */
+static inline void rte_smp_wmb(void);
+
+/**
+ * Read memory barrier between lcores
+ *
+ * Guarantees that the LOAD operations that precede the
+ * rte_smp_rmb() call are globally visible across the lcores
+ * before the the LOAD operations that follows it.
+ */
+static inline void rte_smp_rmb(void);
+
+#endif /* __DOXYGEN__ */
+
+/**
+ * Compiler barrier.
+ *
+ * Guarantees that operation reordering does not occur at compile time
+ * for operations directly before and after the barrier.
+ */
+#define	rte_compiler_barrier() do {		\
+	asm volatile ("" : : : "memory");	\
+} while(0)
+
+/*------------------------- 16 bit atomic operations -------------------------*/
+
+/**
+ * Atomic compare and set.
+ *
+ * (atomic) equivalent to:
+ *   if (*dst == exp)
+ *     *dst = src (all 16-bit words)
+ *
+ * @param dst
+ *   The destination location into which the value will be written.
+ * @param exp
+ *   The expected value.
+ * @param src
+ *   The new value.
+ * @return
+ *   Non-zero on success; 0 on failure.
+ */
+static inline int
+rte_atomic16_cmpset(volatile uint16_t *dst, uint16_t exp, uint16_t src);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int
+rte_atomic16_cmpset(volatile uint16_t *dst, uint16_t exp, uint16_t src)
+{
+	return __sync_bool_compare_and_swap(dst, exp, src);
+}
+#endif
+
+/**
+ * The atomic counter structure.
+ */
+typedef struct {
+	volatile int16_t cnt; /**< An internal counter value. */
+} rte_atomic16_t;
+
+/**
+ * Static initializer for an atomic counter.
+ */
+#define RTE_ATOMIC16_INIT(val) { (val) }
+
+/**
+ * Initialize an atomic counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ */
+static inline void
+rte_atomic16_init(rte_atomic16_t *v)
+{
+	v->cnt = 0;
+}
+
+/**
+ * Atomically read a 16-bit value from a counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @return
+ *   The value of the counter.
+ */
+static inline int16_t
+rte_atomic16_read(const rte_atomic16_t *v)
+{
+	return v->cnt;
+}
+
+/**
+ * Atomically set a counter to a 16-bit value.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param new_value
+ *   The new value for the counter.
+ */
+static inline void
+rte_atomic16_set(rte_atomic16_t *v, int16_t new_value)
+{
+	v->cnt = new_value;
+}
+
+/**
+ * Atomically add a 16-bit value to an atomic counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param inc
+ *   The value to be added to the counter.
+ */
+static inline void
+rte_atomic16_add(rte_atomic16_t *v, int16_t inc)
+{
+	__sync_fetch_and_add(&v->cnt, inc);
+}
+
+/**
+ * Atomically subtract a 16-bit value from an atomic counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param dec
+ *   The value to be subtracted from the counter.
+ */
+static inline void
+rte_atomic16_sub(rte_atomic16_t *v, int16_t dec)
+{
+	__sync_fetch_and_sub(&v->cnt, dec);
+}
+
+/**
+ * Atomically increment a counter by one.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ */
+static inline void
+rte_atomic16_inc(rte_atomic16_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void
+rte_atomic16_inc(rte_atomic16_t *v)
+{
+	rte_atomic16_add(v, 1);
+}
+#endif
+
+/**
+ * Atomically decrement a counter by one.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ */
+static inline void
+rte_atomic16_dec(rte_atomic16_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void
+rte_atomic16_dec(rte_atomic16_t *v)
+{
+	rte_atomic16_sub(v, 1);
+}
+#endif
+
+/**
+ * Atomically add a 16-bit value to a counter and return the result.
+ *
+ * Atomically adds the 16-bits value (inc) to the atomic counter (v) and
+ * returns the value of v after addition.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param inc
+ *   The value to be added to the counter.
+ * @return
+ *   The value of v after the addition.
+ */
+static inline int16_t
+rte_atomic16_add_return(rte_atomic16_t *v, int16_t inc)
+{
+	return __sync_add_and_fetch(&v->cnt, inc);
+}
+
+/**
+ * Atomically subtract a 16-bit value from a counter and return
+ * the result.
+ *
+ * Atomically subtracts the 16-bit value (inc) from the atomic counter
+ * (v) and returns the value of v after the subtraction.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param dec
+ *   The value to be subtracted from the counter.
+ * @return
+ *   The value of v after the subtraction.
+ */
+static inline int16_t
+rte_atomic16_sub_return(rte_atomic16_t *v, int16_t dec)
+{
+	return __sync_sub_and_fetch(&v->cnt, dec);
+}
+
+/**
+ * Atomically increment a 16-bit counter by one and test.
+ *
+ * Atomically increments the atomic counter (v) by one and returns true if
+ * the result is 0, or false in all other cases.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @return
+ *   True if the result after the increment operation is 0; false otherwise.
+ */
+static inline int rte_atomic16_inc_and_test(rte_atomic16_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int rte_atomic16_inc_and_test(rte_atomic16_t *v)
+{
+	return __sync_add_and_fetch(&v->cnt, 1) == 0;
+}
+#endif
+
+/**
+ * Atomically decrement a 16-bit counter by one and test.
+ *
+ * Atomically decrements the atomic counter (v) by one and returns true if
+ * the result is 0, or false in all other cases.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @return
+ *   True if the result after the decrement operation is 0; false otherwise.
+ */
+static inline int rte_atomic16_dec_and_test(rte_atomic16_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int rte_atomic16_dec_and_test(rte_atomic16_t *v)
+{
+	return __sync_sub_and_fetch(&v->cnt, 1) == 0;
+}
+#endif
+
+/**
+ * Atomically test and set a 16-bit atomic counter.
+ *
+ * If the counter value is already set, return 0 (failed). Otherwise, set
+ * the counter value to 1 and return 1 (success).
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @return
+ *   0 if failed; else 1, success.
+ */
+static inline int rte_atomic16_test_and_set(rte_atomic16_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int rte_atomic16_test_and_set(rte_atomic16_t *v)
+{
+	return rte_atomic16_cmpset((volatile uint16_t *)&v->cnt, 0, 1);
+}
+#endif
+
+/**
+ * Atomically set a 16-bit counter to 0.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ */
+static inline void rte_atomic16_clear(rte_atomic16_t *v)
+{
+	v->cnt = 0;
+}
+
+/*------------------------- 32 bit atomic operations -------------------------*/
+
+/**
+ * Atomic compare and set.
+ *
+ * (atomic) equivalent to:
+ *   if (*dst == exp)
+ *     *dst = src (all 32-bit words)
+ *
+ * @param dst
+ *   The destination location into which the value will be written.
+ * @param exp
+ *   The expected value.
+ * @param src
+ *   The new value.
+ * @return
+ *   Non-zero on success; 0 on failure.
+ */
+static inline int
+rte_atomic32_cmpset(volatile uint32_t *dst, uint32_t exp, uint32_t src);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int
+rte_atomic32_cmpset(volatile uint32_t *dst, uint32_t exp, uint32_t src)
+{
+	return __sync_bool_compare_and_swap(dst, exp, src);
+}
+#endif
+
+/**
+ * The atomic counter structure.
+ */
+typedef struct {
+	volatile int32_t cnt; /**< An internal counter value. */
+} rte_atomic32_t;
+
+/**
+ * Static initializer for an atomic counter.
+ */
+#define RTE_ATOMIC32_INIT(val) { (val) }
+
+/**
+ * Initialize an atomic counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ */
+static inline void
+rte_atomic32_init(rte_atomic32_t *v)
+{
+	v->cnt = 0;
+}
+
+/**
+ * Atomically read a 32-bit value from a counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @return
+ *   The value of the counter.
+ */
+static inline int32_t
+rte_atomic32_read(const rte_atomic32_t *v)
+{
+	return v->cnt;
+}
+
+/**
+ * Atomically set a counter to a 32-bit value.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param new_value
+ *   The new value for the counter.
+ */
+static inline void
+rte_atomic32_set(rte_atomic32_t *v, int32_t new_value)
+{
+	v->cnt = new_value;
+}
+
+/**
+ * Atomically add a 32-bit value to an atomic counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param inc
+ *   The value to be added to the counter.
+ */
+static inline void
+rte_atomic32_add(rte_atomic32_t *v, int32_t inc)
+{
+	__sync_fetch_and_add(&v->cnt, inc);
+}
+
+/**
+ * Atomically subtract a 32-bit value from an atomic counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param dec
+ *   The value to be subtracted from the counter.
+ */
+static inline void
+rte_atomic32_sub(rte_atomic32_t *v, int32_t dec)
+{
+	__sync_fetch_and_sub(&v->cnt, dec);
+}
+
+/**
+ * Atomically increment a counter by one.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ */
+static inline void
+rte_atomic32_inc(rte_atomic32_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void
+rte_atomic32_inc(rte_atomic32_t *v)
+{
+	rte_atomic32_add(v, 1);
+}
+#endif
+
+/**
+ * Atomically decrement a counter by one.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ */
+static inline void
+rte_atomic32_dec(rte_atomic32_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void
+rte_atomic32_dec(rte_atomic32_t *v)
+{
+	rte_atomic32_sub(v,1);
+}
+#endif
+
+/**
+ * Atomically add a 32-bit value to a counter and return the result.
+ *
+ * Atomically adds the 32-bits value (inc) to the atomic counter (v) and
+ * returns the value of v after addition.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param inc
+ *   The value to be added to the counter.
+ * @return
+ *   The value of v after the addition.
+ */
+static inline int32_t
+rte_atomic32_add_return(rte_atomic32_t *v, int32_t inc)
+{
+	return __sync_add_and_fetch(&v->cnt, inc);
+}
+
+/**
+ * Atomically subtract a 32-bit value from a counter and return
+ * the result.
+ *
+ * Atomically subtracts the 32-bit value (inc) from the atomic counter
+ * (v) and returns the value of v after the subtraction.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param dec
+ *   The value to be subtracted from the counter.
+ * @return
+ *   The value of v after the subtraction.
+ */
+static inline int32_t
+rte_atomic32_sub_return(rte_atomic32_t *v, int32_t dec)
+{
+	return __sync_sub_and_fetch(&v->cnt, dec);
+}
+
+/**
+ * Atomically increment a 32-bit counter by one and test.
+ *
+ * Atomically increments the atomic counter (v) by one and returns true if
+ * the result is 0, or false in all other cases.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @return
+ *   True if the result after the increment operation is 0; false otherwise.
+ */
+static inline int rte_atomic32_inc_and_test(rte_atomic32_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int rte_atomic32_inc_and_test(rte_atomic32_t *v)
+{
+	return __sync_add_and_fetch(&v->cnt, 1) == 0;
+}
+#endif
+
+/**
+ * Atomically decrement a 32-bit counter by one and test.
+ *
+ * Atomically decrements the atomic counter (v) by one and returns true if
+ * the result is 0, or false in all other cases.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @return
+ *   True if the result after the decrement operation is 0; false otherwise.
+ */
+static inline int rte_atomic32_dec_and_test(rte_atomic32_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int rte_atomic32_dec_and_test(rte_atomic32_t *v)
+{
+	return __sync_sub_and_fetch(&v->cnt, 1) == 0;
+}
+#endif
+
+/**
+ * Atomically test and set a 32-bit atomic counter.
+ *
+ * If the counter value is already set, return 0 (failed). Otherwise, set
+ * the counter value to 1 and return 1 (success).
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @return
+ *   0 if failed; else 1, success.
+ */
+static inline int rte_atomic32_test_and_set(rte_atomic32_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int rte_atomic32_test_and_set(rte_atomic32_t *v)
+{
+	return rte_atomic32_cmpset((volatile uint32_t *)&v->cnt, 0, 1);
+}
+#endif
+
+/**
+ * Atomically set a 32-bit counter to 0.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ */
+static inline void rte_atomic32_clear(rte_atomic32_t *v)
+{
+	v->cnt = 0;
+}
+
+/*------------------------- 64 bit atomic operations -------------------------*/
+
+/**
+ * An atomic compare and set function used by the mutex functions.
+ * (atomic) equivalent to:
+ *   if (*dst == exp)
+ *     *dst = src (all 64-bit words)
+ *
+ * @param dst
+ *   The destination into which the value will be written.
+ * @param exp
+ *   The expected value.
+ * @param src
+ *   The new value.
+ * @return
+ *   Non-zero on success; 0 on failure.
+ */
+static inline int
+rte_atomic64_cmpset(volatile uint64_t *dst, uint64_t exp, uint64_t src);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int
+rte_atomic64_cmpset(volatile uint64_t *dst, uint64_t exp, uint64_t src)
+{
+	return __sync_bool_compare_and_swap(dst, exp, src);
+}
+#endif
+
+/**
+ * The atomic counter structure.
+ */
+typedef struct {
+	volatile int64_t cnt;  /**< Internal counter value. */
+} rte_atomic64_t;
+
+/**
+ * Static initializer for an atomic counter.
+ */
+#define RTE_ATOMIC64_INIT(val) { (val) }
+
+/**
+ * Initialize the atomic counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ */
+static inline void
+rte_atomic64_init(rte_atomic64_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void
+rte_atomic64_init(rte_atomic64_t *v)
+{
+#ifdef __LP64__
+	v->cnt = 0;
+#else
+	int success = 0;
+	uint64_t tmp;
+
+	while (success == 0) {
+		tmp = v->cnt;
+		success = rte_atomic64_cmpset((volatile uint64_t *)&v->cnt,
+		                              tmp, 0);
+	}
+#endif
+}
+#endif
+
+/**
+ * Atomically read a 64-bit counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @return
+ *   The value of the counter.
+ */
+static inline int64_t
+rte_atomic64_read(rte_atomic64_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int64_t
+rte_atomic64_read(rte_atomic64_t *v)
+{
+#ifdef __LP64__
+	return v->cnt;
+#else
+	int success = 0;
+	uint64_t tmp;
+
+	while (success == 0) {
+		tmp = v->cnt;
+		/* replace the value by itself */
+		success = rte_atomic64_cmpset((volatile uint64_t *)&v->cnt,
+		                              tmp, tmp);
+	}
+	return tmp;
+#endif
+}
+#endif
+
+/**
+ * Atomically set a 64-bit counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param new_value
+ *   The new value of the counter.
+ */
+static inline void
+rte_atomic64_set(rte_atomic64_t *v, int64_t new_value);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void
+rte_atomic64_set(rte_atomic64_t *v, int64_t new_value)
+{
+#ifdef __LP64__
+	v->cnt = new_value;
+#else
+	int success = 0;
+	uint64_t tmp;
+
+	while (success == 0) {
+		tmp = v->cnt;
+		success = rte_atomic64_cmpset((volatile uint64_t *)&v->cnt,
+		                              tmp, new_value);
+	}
+#endif
+}
+#endif
+
+/**
+ * Atomically add a 64-bit value to a counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param inc
+ *   The value to be added to the counter.
+ */
+static inline void
+rte_atomic64_add(rte_atomic64_t *v, int64_t inc);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void
+rte_atomic64_add(rte_atomic64_t *v, int64_t inc)
+{
+	__sync_fetch_and_add(&v->cnt, inc);
+}
+#endif
+
+/**
+ * Atomically subtract a 64-bit value from a counter.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param dec
+ *   The value to be subtracted from the counter.
+ */
+static inline void
+rte_atomic64_sub(rte_atomic64_t *v, int64_t dec);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void
+rte_atomic64_sub(rte_atomic64_t *v, int64_t dec)
+{
+	__sync_fetch_and_sub(&v->cnt, dec);
+}
+#endif
+
+/**
+ * Atomically increment a 64-bit counter by one and test.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ */
+static inline void
+rte_atomic64_inc(rte_atomic64_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void
+rte_atomic64_inc(rte_atomic64_t *v)
+{
+	rte_atomic64_add(v, 1);
+}
+#endif
+
+/**
+ * Atomically decrement a 64-bit counter by one and test.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ */
+static inline void
+rte_atomic64_dec(rte_atomic64_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void
+rte_atomic64_dec(rte_atomic64_t *v)
+{
+	rte_atomic64_sub(v, 1);
+}
+#endif
+
+/**
+ * Add a 64-bit value to an atomic counter and return the result.
+ *
+ * Atomically adds the 64-bit value (inc) to the atomic counter (v) and
+ * returns the value of v after the addition.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param inc
+ *   The value to be added to the counter.
+ * @return
+ *   The value of v after the addition.
+ */
+static inline int64_t
+rte_atomic64_add_return(rte_atomic64_t *v, int64_t inc);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int64_t
+rte_atomic64_add_return(rte_atomic64_t *v, int64_t inc)
+{
+	return __sync_add_and_fetch(&v->cnt, inc);
+}
+#endif
+
+/**
+ * Subtract a 64-bit value from an atomic counter and return the result.
+ *
+ * Atomically subtracts the 64-bit value (dec) from the atomic counter (v)
+ * and returns the value of v after the subtraction.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @param dec
+ *   The value to be subtracted from the counter.
+ * @return
+ *   The value of v after the subtraction.
+ */
+static inline int64_t
+rte_atomic64_sub_return(rte_atomic64_t *v, int64_t dec);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int64_t
+rte_atomic64_sub_return(rte_atomic64_t *v, int64_t dec)
+{
+	return __sync_sub_and_fetch(&v->cnt, dec);
+}
+#endif
+
+/**
+ * Atomically increment a 64-bit counter by one and test.
+ *
+ * Atomically increments the atomic counter (v) by one and returns
+ * true if the result is 0, or false in all other cases.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @return
+ *   True if the result after the addition is 0; false otherwise.
+ */
+static inline int rte_atomic64_inc_and_test(rte_atomic64_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int rte_atomic64_inc_and_test(rte_atomic64_t *v)
+{
+	return rte_atomic64_add_return(v, 1) == 0;
+}
+#endif
+
+/**
+ * Atomically decrement a 64-bit counter by one and test.
+ *
+ * Atomically decrements the atomic counter (v) by one and returns true if
+ * the result is 0, or false in all other cases.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @return
+ *   True if the result after subtraction is 0; false otherwise.
+ */
+static inline int rte_atomic64_dec_and_test(rte_atomic64_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int rte_atomic64_dec_and_test(rte_atomic64_t *v)
+{
+	return rte_atomic64_sub_return(v, 1) == 0;
+}
+#endif
+
+/**
+ * Atomically test and set a 64-bit atomic counter.
+ *
+ * If the counter value is already set, return 0 (failed). Otherwise, set
+ * the counter value to 1 and return 1 (success).
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ * @return
+ *   0 if failed; else 1, success.
+ */
+static inline int rte_atomic64_test_and_set(rte_atomic64_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int rte_atomic64_test_and_set(rte_atomic64_t *v)
+{
+	return rte_atomic64_cmpset((volatile uint64_t *)&v->cnt, 0, 1);
+}
+#endif
+
+/**
+ * Atomically set a 64-bit counter to 0.
+ *
+ * @param v
+ *   A pointer to the atomic counter.
+ */
+static inline void rte_atomic64_clear(rte_atomic64_t *v);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void rte_atomic64_clear(rte_atomic64_t *v)
+{
+	rte_atomic64_set(v, 0);
+}
+#endif
+
+#endif /* _RTE_ATOMIC_H_ */
diff --git a/lib/librte_eal/common/include/generic/rte_byteorder.h b/lib/librte_eal/common/include/generic/rte_byteorder.h
new file mode 100644
index 00000000..c46fdcf2
--- /dev/null
+++ b/lib/librte_eal/common/include/generic/rte_byteorder.h
@@ -0,0 +1,217 @@
+/*-
+ *   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_BYTEORDER_H_
+#define _RTE_BYTEORDER_H_
+
+/**
+ * @file
+ *
+ * Byte Swap Operations
+ *
+ * This file defines a generic API for byte swap operations. Part of
+ * the implementation is architecture-specific.
+ */
+
+#include <stdint.h>
+#ifdef RTE_EXEC_ENV_BSDAPP
+#include <sys/endian.h>
+#else
+#include <endian.h>
+#endif
+
+/*
+ * Compile-time endianness detection
+ */
+#define RTE_BIG_ENDIAN    1
+#define RTE_LITTLE_ENDIAN 2
+#if defined __BYTE_ORDER__
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#define RTE_BYTE_ORDER RTE_BIG_ENDIAN
+#elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define RTE_BYTE_ORDER RTE_LITTLE_ENDIAN
+#endif /* __BYTE_ORDER__ */
+#elif defined __BYTE_ORDER
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define RTE_BYTE_ORDER RTE_BIG_ENDIAN
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+#define RTE_BYTE_ORDER RTE_LITTLE_ENDIAN
+#endif /* __BYTE_ORDER */
+#elif defined __BIG_ENDIAN__
+#define RTE_BYTE_ORDER RTE_BIG_ENDIAN
+#elif defined __LITTLE_ENDIAN__
+#define RTE_BYTE_ORDER RTE_LITTLE_ENDIAN
+#endif
+
+/*
+ * An internal function to swap bytes in a 16-bit value.
+ *
+ * It is used by rte_bswap16() when the value is constant. Do not use
+ * this function directly; rte_bswap16() is preferred.
+ */
+static inline uint16_t
+rte_constant_bswap16(uint16_t x)
+{
+	return (uint16_t)(((x & 0x00ffU) << 8) |
+		((x & 0xff00U) >> 8));
+}
+
+/*
+ * An internal function to swap bytes in a 32-bit value.
+ *
+ * It is used by rte_bswap32() when the value is constant. Do not use
+ * this function directly; rte_bswap32() is preferred.
+ */
+static inline uint32_t
+rte_constant_bswap32(uint32_t x)
+{
+	return  ((x & 0x000000ffUL) << 24) |
+		((x & 0x0000ff00UL) << 8) |
+		((x & 0x00ff0000UL) >> 8) |
+		((x & 0xff000000UL) >> 24);
+}
+
+/*
+ * An internal function to swap bytes of a 64-bit value.
+ *
+ * It is used by rte_bswap64() when the value is constant. Do not use
+ * this function directly; rte_bswap64() is preferred.
+ */
+static inline uint64_t
+rte_constant_bswap64(uint64_t x)
+{
+	return  ((x & 0x00000000000000ffULL) << 56) |
+		((x & 0x000000000000ff00ULL) << 40) |
+		((x & 0x0000000000ff0000ULL) << 24) |
+		((x & 0x00000000ff000000ULL) <<  8) |
+		((x & 0x000000ff00000000ULL) >>  8) |
+		((x & 0x0000ff0000000000ULL) >> 24) |
+		((x & 0x00ff000000000000ULL) >> 40) |
+		((x & 0xff00000000000000ULL) >> 56);
+}
+
+
+#ifdef __DOXYGEN__
+
+/**
+ * Swap bytes in a 16-bit value.
+ */
+static uint16_t rte_bswap16(uint16_t _x);
+
+/**
+ * Swap bytes in a 32-bit value.
+ */
+static uint32_t rte_bswap32(uint32_t x);
+
+/**
+ * Swap bytes in a 64-bit value.
+ */
+static uint64_t rte_bswap64(uint64_t x);
+
+/**
+ * Convert a 16-bit value from CPU order to little endian.
+ */
+static uint16_t rte_cpu_to_le_16(uint16_t x);
+
+/**
+ * Convert a 32-bit value from CPU order to little endian.
+ */
+static uint32_t rte_cpu_to_le_32(uint32_t x);
+
+/**
+ * Convert a 64-bit value from CPU order to little endian.
+ */
+static uint64_t rte_cpu_to_le_64(uint64_t x);
+
+
+/**
+ * Convert a 16-bit value from CPU order to big endian.
+ */
+static uint16_t rte_cpu_to_be_16(uint16_t x);
+
+/**
+ * Convert a 32-bit value from CPU order to big endian.
+ */
+static uint32_t rte_cpu_to_be_32(uint32_t x);
+
+/**
+ * Convert a 64-bit value from CPU order to big endian.
+ */
+static uint64_t rte_cpu_to_be_64(uint64_t x);
+
+
+/**
+ * Convert a 16-bit value from little endian to CPU order.
+ */
+static uint16_t rte_le_to_cpu_16(uint16_t x);
+
+/**
+ * Convert a 32-bit value from little endian to CPU order.
+ */
+static uint32_t rte_le_to_cpu_32(uint32_t x);
+
+/**
+ * Convert a 64-bit value from little endian to CPU order.
+ */
+static uint64_t rte_le_to_cpu_64(uint64_t x);
+
+
+/**
+ * Convert a 16-bit value from big endian to CPU order.
+ */
+static uint16_t rte_be_to_cpu_16(uint16_t x);
+
+/**
+ * Convert a 32-bit value from big endian to CPU order.
+ */
+static uint32_t rte_be_to_cpu_32(uint32_t x);
+
+/**
+ * Convert a 64-bit value from big endian to CPU order.
+ */
+static uint64_t rte_be_to_cpu_64(uint64_t x);
+
+#endif /* __DOXYGEN__ */
+
+#ifdef RTE_FORCE_INTRINSICS
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
+#define rte_bswap16(x) __builtin_bswap16(x)
+#endif
+
+#define rte_bswap32(x) __builtin_bswap32(x)
+
+#define rte_bswap64(x) __builtin_bswap64(x)
+
+#endif
+
+#endif /* _RTE_BYTEORDER_H_ */
diff --git a/lib/librte_eal/common/include/generic/rte_cpuflags.h b/lib/librte_eal/common/include/generic/rte_cpuflags.h
new file mode 100644
index 00000000..c1da357c
--- /dev/null
+++ b/lib/librte_eal/common/include/generic/rte_cpuflags.h
@@ -0,0 +1,82 @@
+/*-
+ *   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_CPUFLAGS_H_
+#define _RTE_CPUFLAGS_H_
+
+/**
+ * @file
+ * Architecture specific API to determine available CPU features at runtime.
+ */
+
+#include <errno.h>
+
+/**
+ * Enumeration of all CPU features supported
+ */
+enum rte_cpu_flag_t;
+
+/**
+ * Get name of CPU flag
+ *
+ * @param feature
+ *     CPU flag ID
+ * @return
+ *     flag name
+ *     NULL if flag ID is invalid
+ */
+const char *
+rte_cpu_get_flag_name(enum rte_cpu_flag_t feature);
+
+/**
+ * Function for checking a CPU flag availability
+ *
+ * @param feature
+ *     CPU flag to query CPU for
+ * @return
+ *     1 if flag is available
+ *     0 if flag is not available
+ *     -ENOENT if flag is invalid
+ */
+int
+rte_cpu_get_flag_enabled(enum rte_cpu_flag_t feature);
+
+/**
+ * This function checks that the currently used CPU supports the CPU features
+ * that were specified at compile time. It is called automatically within the
+ * EAL, so does not need to be used by applications.
+ */
+void
+rte_cpu_check_supported(void);
+
+#endif /* _RTE_CPUFLAGS_H_ */
diff --git a/lib/librte_eal/common/include/generic/rte_cycles.h b/lib/librte_eal/common/include/generic/rte_cycles.h
new file mode 100644
index 00000000..8cc21f20
--- /dev/null
+++ b/lib/librte_eal/common/include/generic/rte_cycles.h
@@ -0,0 +1,205 @@
+/*-
+ *   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.
+ */
+/*   BSD LICENSE
+ *
+ *   Copyright(c) 2013 6WIND.
+ *
+ *   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 6WIND S.A. 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_CYCLES_H_
+#define _RTE_CYCLES_H_
+
+/**
+ * @file
+ *
+ * Simple Time Reference Functions (Cycles and HPET).
+ */
+
+#include <stdint.h>
+#include <rte_debug.h>
+#include <rte_atomic.h>
+
+#define MS_PER_S 1000
+#define US_PER_S 1000000
+#define NS_PER_S 1000000000
+
+enum timer_source {
+	EAL_TIMER_TSC = 0,
+	EAL_TIMER_HPET
+};
+extern enum timer_source eal_timer_source;
+
+/**
+ * Get the measured frequency of the RDTSC counter
+ *
+ * @return
+ *   The TSC frequency for this lcore
+ */
+uint64_t
+rte_get_tsc_hz(void);
+
+/**
+ * Return the number of TSC cycles since boot
+ *
+  * @return
+ *   the number of cycles
+ */
+static inline uint64_t
+rte_get_tsc_cycles(void);
+
+#ifdef RTE_LIBEAL_USE_HPET
+/**
+ * Return the number of HPET cycles since boot
+ *
+ * This counter is global for all execution units. The number of
+ * cycles in one second can be retrieved using rte_get_hpet_hz().
+ *
+ * @return
+ *   the number of cycles
+ */
+uint64_t
+rte_get_hpet_cycles(void);
+
+/**
+ * Get the number of HPET cycles in one second.
+ *
+ * @return
+ *   The number of cycles in one second.
+ */
+uint64_t
+rte_get_hpet_hz(void);
+
+/**
+ * Initialise the HPET for use. This must be called before the rte_get_hpet_hz
+ * and rte_get_hpet_cycles APIs are called. If this function does not succeed,
+ * then the HPET functions are unavailable and should not be called.
+ *
+ * @param make_default
+ *	If set, the hpet timer becomes the default timer whose values are
+ *	returned by the rte_get_timer_hz/cycles API calls
+ *
+ * @return
+ *	0 on success,
+ *	-1 on error, and the make_default parameter is ignored.
+ */
+int rte_eal_hpet_init(int make_default);
+
+#endif
+
+/**
+ * Get the number of cycles since boot from the default timer.
+ *
+ * @return
+ *   The number of cycles
+ */
+static inline uint64_t
+rte_get_timer_cycles(void)
+{
+	switch(eal_timer_source) {
+	case EAL_TIMER_TSC:
+		return rte_get_tsc_cycles();
+	case EAL_TIMER_HPET:
+#ifdef RTE_LIBEAL_USE_HPET
+		return rte_get_hpet_cycles();
+#endif
+	default: rte_panic("Invalid timer source specified\n");
+	}
+}
+
+/**
+ * Get the number of cycles in one second for the default timer.
+ *
+ * @return
+ *   The number of cycles in one second.
+ */
+static inline uint64_t
+rte_get_timer_hz(void)
+{
+	switch(eal_timer_source) {
+	case EAL_TIMER_TSC:
+		return rte_get_tsc_hz();
+	case EAL_TIMER_HPET:
+#ifdef RTE_LIBEAL_USE_HPET
+		return rte_get_hpet_hz();
+#endif
+	default: rte_panic("Invalid timer source specified\n");
+	}
+}
+
+/**
+ * Wait at least us microseconds.
+ *
+ * @param us
+ *   The number of microseconds to wait.
+ */
+void
+rte_delay_us(unsigned us);
+
+/**
+ * Wait at least ms milliseconds.
+ *
+ * @param ms
+ *   The number of milliseconds to wait.
+ */
+static inline void
+rte_delay_ms(unsigned ms)
+{
+	rte_delay_us(ms * 1000);
+}
+
+#endif /* _RTE_CYCLES_H_ */
diff --git a/lib/librte_eal/common/include/generic/rte_memcpy.h b/lib/librte_eal/common/include/generic/rte_memcpy.h
new file mode 100644
index 00000000..03e84773
--- /dev/null
+++ b/lib/librte_eal/common/include/generic/rte_memcpy.h
@@ -0,0 +1,144 @@
+/*-
+ *   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_MEMCPY_H_
+#define _RTE_MEMCPY_H_
+
+/**
+ * @file
+ *
+ * Functions for vectorised implementation of memcpy().
+ */
+
+/**
+ * Copy 16 bytes from one location to another using optimised
+ * instructions. The locations should not overlap.
+ *
+ * @param dst
+ *   Pointer to the destination of the data.
+ * @param src
+ *   Pointer to the source data.
+ */
+static inline void
+rte_mov16(uint8_t *dst, const uint8_t *src);
+
+/**
+ * Copy 32 bytes from one location to another using optimised
+ * instructions. The locations should not overlap.
+ *
+ * @param dst
+ *   Pointer to the destination of the data.
+ * @param src
+ *   Pointer to the source data.
+ */
+static inline void
+rte_mov32(uint8_t *dst, const uint8_t *src);
+
+/**
+ * Copy 48 bytes from one location to another using optimised
+ * instructions. The locations should not overlap.
+ *
+ * @param dst
+ *   Pointer to the destination of the data.
+ * @param src
+ *   Pointer to the source data.
+ */
+static inline void
+rte_mov48(uint8_t *dst, const uint8_t *src);
+
+/**
+ * Copy 64 bytes from one location to another using optimised
+ * instructions. The locations should not overlap.
+ *
+ * @param dst
+ *   Pointer to the destination of the data.
+ * @param src
+ *   Pointer to the source data.
+ */
+static inline void
+rte_mov64(uint8_t *dst, const uint8_t *src);
+
+/**
+ * Copy 128 bytes from one location to another using optimised
+ * instructions. The locations should not overlap.
+ *
+ * @param dst
+ *   Pointer to the destination of the data.
+ * @param src
+ *   Pointer to the source data.
+ */
+static inline void
+rte_mov128(uint8_t *dst, const uint8_t *src);
+
+/**
+ * Copy 256 bytes from one location to another using optimised
+ * instructions. The locations should not overlap.
+ *
+ * @param dst
+ *   Pointer to the destination of the data.
+ * @param src
+ *   Pointer to the source data.
+ */
+static inline void
+rte_mov256(uint8_t *dst, const uint8_t *src);
+
+#ifdef __DOXYGEN__
+
+/**
+ * Copy bytes from one location to another. The locations must not overlap.
+ *
+ * @note This is implemented as a macro, so it's address should not be taken
+ * and care is needed as parameter expressions may be evaluated multiple times.
+ *
+ * @param dst
+ *   Pointer to the destination of the data.
+ * @param src
+ *   Pointer to the source data.
+ * @param n
+ *   Number of bytes to copy.
+ * @return
+ *   Pointer to the destination data.
+ */
+static void *
+rte_memcpy(void *dst, const void *src, size_t n);
+
+#endif /* __DOXYGEN__ */
+
+/*
+ * memcpy() function used by rte_memcpy macro
+ */
+static inline void *
+rte_memcpy_func(void *dst, const void *src, size_t n) __attribute__((always_inline));
+
+
+#endif /* _RTE_MEMCPY_H_ */
diff --git a/lib/librte_eal/common/include/generic/rte_prefetch.h b/lib/librte_eal/common/include/generic/rte_prefetch.h
new file mode 100644
index 00000000..07e409ec
--- /dev/null
+++ b/lib/librte_eal/common/include/generic/rte_prefetch.h
@@ -0,0 +1,83 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2015 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_PREFETCH_H_
+#define _RTE_PREFETCH_H_
+
+/**
+ * @file
+ *
+ * Prefetch operations.
+ *
+ * This file defines an API for prefetch macros / inline-functions,
+ * which are architecture-dependent. Prefetching occurs when a
+ * processor requests an instruction or data from memory to cache
+ * before it is actually needed, potentially speeding up the execution of the
+ * program.
+ */
+
+/**
+ * Prefetch a cache line into all cache levels.
+ * @param p
+ *   Address to prefetch
+ */
+static inline void rte_prefetch0(const volatile void *p);
+
+/**
+ * Prefetch a cache line into all cache levels except the 0th cache level.
+ * @param p
+ *   Address to prefetch
+ */
+static inline void rte_prefetch1(const volatile void *p);
+
+/**
+ * Prefetch a cache line into all cache levels except the 0th and 1th cache
+ * levels.
+ * @param p
+ *   Address to prefetch
+ */
+static inline void rte_prefetch2(const volatile void *p);
+
+/**
+ * Prefetch a cache line into all cache levels (non-temporal/transient version)
+ *
+ * The non-temporal prefetch is intended as a prefetch hint that processor will
+ * use the prefetched data only once or short period, unlike the
+ * rte_prefetch0() function which imply that prefetched data to use repeatedly.
+ *
+ * @param p
+ *   Address to prefetch
+ */
+static inline void rte_prefetch_non_temporal(const volatile void *p);
+
+#endif /* _RTE_PREFETCH_H_ */
diff --git a/lib/librte_eal/common/include/generic/rte_rwlock.h b/lib/librte_eal/common/include/generic/rte_rwlock.h
new file mode 100644
index 00000000..7a0fdc55
--- /dev/null
+++ b/lib/librte_eal/common/include/generic/rte_rwlock.h
@@ -0,0 +1,208 @@
+/*-
+ *   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_RWLOCK_H_
+#define _RTE_RWLOCK_H_
+
+/**
+ * @file
+ *
+ * RTE Read-Write Locks
+ *
+ * This file defines an API for read-write locks. The lock is used to
+ * protect data that allows multiple readers in parallel, but only
+ * one writer. All readers are blocked until the writer is finished
+ * writing.
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rte_common.h>
+#include <rte_atomic.h>
+
+/**
+ * The rte_rwlock_t type.
+ *
+ * cnt is -1 when write lock is held, and > 0 when read locks are held.
+ */
+typedef struct {
+	volatile int32_t cnt; /**< -1 when W lock held, > 0 when R locks held. */
+} rte_rwlock_t;
+
+/**
+ * A static rwlock initializer.
+ */
+#define RTE_RWLOCK_INITIALIZER { 0 }
+
+/**
+ * Initialize the rwlock to an unlocked state.
+ *
+ * @param rwl
+ *   A pointer to the rwlock structure.
+ */
+static inline void
+rte_rwlock_init(rte_rwlock_t *rwl)
+{
+	rwl->cnt = 0;
+}
+
+/**
+ * Take a read lock. Loop until the lock is held.
+ *
+ * @param rwl
+ *   A pointer to a rwlock structure.
+ */
+static inline void
+rte_rwlock_read_lock(rte_rwlock_t *rwl)
+{
+	int32_t x;
+	int success = 0;
+
+	while (success == 0) {
+		x = rwl->cnt;
+		/* write lock is held */
+		if (x < 0) {
+			rte_pause();
+			continue;
+		}
+		success = rte_atomic32_cmpset((volatile uint32_t *)&rwl->cnt,
+					      x, x + 1);
+	}
+}
+
+/**
+ * Release a read lock.
+ *
+ * @param rwl
+ *   A pointer to the rwlock structure.
+ */
+static inline void
+rte_rwlock_read_unlock(rte_rwlock_t *rwl)
+{
+	rte_atomic32_dec((rte_atomic32_t *)(intptr_t)&rwl->cnt);
+}
+
+/**
+ * Take a write lock. Loop until the lock is held.
+ *
+ * @param rwl
+ *   A pointer to a rwlock structure.
+ */
+static inline void
+rte_rwlock_write_lock(rte_rwlock_t *rwl)
+{
+	int32_t x;
+	int success = 0;
+
+	while (success == 0) {
+		x = rwl->cnt;
+		/* a lock is held */
+		if (x != 0) {
+			rte_pause();
+			continue;
+		}
+		success = rte_atomic32_cmpset((volatile uint32_t *)&rwl->cnt,
+					      0, -1);
+	}
+}
+
+/**
+ * Release a write lock.
+ *
+ * @param rwl
+ *   A pointer to a rwlock structure.
+ */
+static inline void
+rte_rwlock_write_unlock(rte_rwlock_t *rwl)
+{
+	rte_atomic32_inc((rte_atomic32_t *)(intptr_t)&rwl->cnt);
+}
+
+/**
+ * Try to execute critical section in a hardware memory transaction, if it
+ * fails or not available take a read lock
+ *
+ * NOTE: An attempt to perform a HW I/O operation inside a hardware memory
+ * transaction always aborts the transaction since the CPU is not able to
+ * roll-back should the transaction fail. Therefore, hardware transactional
+ * locks are not advised to be used around rte_eth_rx_burst() and
+ * rte_eth_tx_burst() calls.
+ *
+ * @param rwl
+ *   A pointer to a rwlock structure.
+ */
+static inline void
+rte_rwlock_read_lock_tm(rte_rwlock_t *rwl);
+
+/**
+ * Commit hardware memory transaction or release the read lock if the lock is used as a fall-back
+ *
+ * @param rwl
+ *   A pointer to the rwlock structure.
+ */
+static inline void
+rte_rwlock_read_unlock_tm(rte_rwlock_t *rwl);
+
+/**
+ * Try to execute critical section in a hardware memory transaction, if it
+ * fails or not available take a write lock
+ *
+ * NOTE: An attempt to perform a HW I/O operation inside a hardware memory
+ * transaction always aborts the transaction since the CPU is not able to
+ * roll-back should the transaction fail. Therefore, hardware transactional
+ * locks are not advised to be used around rte_eth_rx_burst() and
+ * rte_eth_tx_burst() calls.
+ *
+ * @param rwl
+ *   A pointer to a rwlock structure.
+ */
+static inline void
+rte_rwlock_write_lock_tm(rte_rwlock_t *rwl);
+
+/**
+ * Commit hardware memory transaction or release the write lock if the lock is used as a fall-back
+ *
+ * @param rwl
+ *   A pointer to a rwlock structure.
+ */
+static inline void
+rte_rwlock_write_unlock_tm(rte_rwlock_t *rwl);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_RWLOCK_H_ */
diff --git a/lib/librte_eal/common/include/generic/rte_spinlock.h b/lib/librte_eal/common/include/generic/rte_spinlock.h
new file mode 100644
index 00000000..e51fc56b
--- /dev/null
+++ b/lib/librte_eal/common/include/generic/rte_spinlock.h
@@ -0,0 +1,325 @@
+/*-
+ *   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_SPINLOCK_H_
+#define _RTE_SPINLOCK_H_
+
+/**
+ * @file
+ *
+ * RTE Spinlocks
+ *
+ * This file defines an API for read-write locks, which are implemented
+ * in an architecture-specific way. This kind of lock simply waits in
+ * a loop repeatedly checking until the lock becomes available.
+ *
+ * All locks must be initialised before use, and only initialised once.
+ *
+ */
+
+#include <rte_lcore.h>
+#ifdef RTE_FORCE_INTRINSICS
+#include <rte_common.h>
+#endif
+
+/**
+ * The rte_spinlock_t type.
+ */
+typedef struct {
+	volatile int locked; /**< lock status 0 = unlocked, 1 = locked */
+} rte_spinlock_t;
+
+/**
+ * A static spinlock initializer.
+ */
+#define RTE_SPINLOCK_INITIALIZER { 0 }
+
+/**
+ * Initialize the spinlock to an unlocked state.
+ *
+ * @param sl
+ *   A pointer to the spinlock.
+ */
+static inline void
+rte_spinlock_init(rte_spinlock_t *sl)
+{
+	sl->locked = 0;
+}
+
+/**
+ * Take the spinlock.
+ *
+ * @param sl
+ *   A pointer to the spinlock.
+ */
+static inline void
+rte_spinlock_lock(rte_spinlock_t *sl);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void
+rte_spinlock_lock(rte_spinlock_t *sl)
+{
+	while (__sync_lock_test_and_set(&sl->locked, 1))
+		while(sl->locked)
+			rte_pause();
+}
+#endif
+
+/**
+ * Release the spinlock.
+ *
+ * @param sl
+ *   A pointer to the spinlock.
+ */
+static inline void
+rte_spinlock_unlock (rte_spinlock_t *sl);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline void
+rte_spinlock_unlock (rte_spinlock_t *sl)
+{
+	__sync_lock_release(&sl->locked);
+}
+#endif
+
+/**
+ * Try to take the lock.
+ *
+ * @param sl
+ *   A pointer to the spinlock.
+ * @return
+ *   1 if the lock is successfully taken; 0 otherwise.
+ */
+static inline int
+rte_spinlock_trylock (rte_spinlock_t *sl);
+
+#ifdef RTE_FORCE_INTRINSICS
+static inline int
+rte_spinlock_trylock (rte_spinlock_t *sl)
+{
+	return __sync_lock_test_and_set(&sl->locked,1) == 0;
+}
+#endif
+
+/**
+ * Test if the lock is taken.
+ *
+ * @param sl
+ *   A pointer to the spinlock.
+ * @return
+ *   1 if the lock is currently taken; 0 otherwise.
+ */
+static inline int rte_spinlock_is_locked (rte_spinlock_t *sl)
+{
+	return sl->locked;
+}
+
+/**
+ * Test if hardware transactional memory (lock elision) is supported
+ *
+ * @return
+ *   1 if the hardware transactional memory is supported; 0 otherwise.
+ */
+static inline int rte_tm_supported(void);
+
+/**
+ * Try to execute critical section in a hardware memory transaction,
+ * if it fails or not available take the spinlock.
+ *
+ * NOTE: An attempt to perform a HW I/O operation inside a hardware memory
+ * transaction always aborts the transaction since the CPU is not able to
+ * roll-back should the transaction fail. Therefore, hardware transactional
+ * locks are not advised to be used around rte_eth_rx_burst() and
+ * rte_eth_tx_burst() calls.
+ *
+ * @param sl
+ *   A pointer to the spinlock.
+ */
+static inline void
+rte_spinlock_lock_tm(rte_spinlock_t *sl);
+
+/**
+ * Commit hardware memory transaction or release the spinlock if
+ * the spinlock is used as a fall-back
+ *
+ * @param sl
+ *   A pointer to the spinlock.
+ */
+static inline void
+rte_spinlock_unlock_tm(rte_spinlock_t *sl);
+
+/**
+ * Try to execute critical section in a hardware memory transaction,
+ * if it fails or not available try to take the lock.
+ *
+ * NOTE: An attempt to perform a HW I/O operation inside a hardware memory
+ * transaction always aborts the transaction since the CPU is not able to
+ * roll-back should the transaction fail. Therefore, hardware transactional
+ * locks are not advised to be used around rte_eth_rx_burst() and
+ * rte_eth_tx_burst() calls.
+ *
+ * @param sl
+ *   A pointer to the spinlock.
+ * @return
+ *   1 if the hardware memory transaction is successfully started
+ *   or lock is successfully taken; 0 otherwise.
+ */
+static inline int
+rte_spinlock_trylock_tm(rte_spinlock_t *sl);
+
+/**
+ * The rte_spinlock_recursive_t type.
+ */
+typedef struct {
+	rte_spinlock_t sl; /**< the actual spinlock */
+	volatile int user; /**< core id using lock, -1 for unused */
+	volatile int count; /**< count of time this lock has been called */
+} rte_spinlock_recursive_t;
+
+/**
+ * A static recursive spinlock initializer.
+ */
+#define RTE_SPINLOCK_RECURSIVE_INITIALIZER {RTE_SPINLOCK_INITIALIZER, -1, 0}
+
+/**
+ * Initialize the recursive spinlock to an unlocked state.
+ *
+ * @param slr
+ *   A pointer to the recursive spinlock.
+ */
+static inline void rte_spinlock_recursive_init(rte_spinlock_recursive_t *slr)
+{
+	rte_spinlock_init(&slr->sl);
+	slr->user = -1;
+	slr->count = 0;
+}
+
+/**
+ * Take the recursive spinlock.
+ *
+ * @param slr
+ *   A pointer to the recursive spinlock.
+ */
+static inline void rte_spinlock_recursive_lock(rte_spinlock_recursive_t *slr)
+{
+	int id = rte_gettid();
+
+	if (slr->user != id) {
+		rte_spinlock_lock(&slr->sl);
+		slr->user = id;
+	}
+	slr->count++;
+}
+/**
+ * Release the recursive spinlock.
+ *
+ * @param slr
+ *   A pointer to the recursive spinlock.
+ */
+static inline void rte_spinlock_recursive_unlock(rte_spinlock_recursive_t *slr)
+{
+	if (--(slr->count) == 0) {
+		slr->user = -1;
+		rte_spinlock_unlock(&slr->sl);
+	}
+
+}
+
+/**
+ * Try to take the recursive lock.
+ *
+ * @param slr
+ *   A pointer to the recursive spinlock.
+ * @return
+ *   1 if the lock is successfully taken; 0 otherwise.
+ */
+static inline int rte_spinlock_recursive_trylock(rte_spinlock_recursive_t *slr)
+{
+	int id = rte_gettid();
+
+	if (slr->user != id) {
+		if (rte_spinlock_trylock(&slr->sl) == 0)
+			return 0;
+		slr->user = id;
+	}
+	slr->count++;
+	return 1;
+}
+
+
+/**
+ * Try to execute critical section in a hardware memory transaction,
+ * if it fails or not available take the recursive spinlocks
+ *
+ * NOTE: An attempt to perform a HW I/O operation inside a hardware memory
+ * transaction always aborts the transaction since the CPU is not able to
+ * roll-back should the transaction fail. Therefore, hardware transactional
+ * locks are not advised to be used around rte_eth_rx_burst() and
+ * rte_eth_tx_burst() calls.
+ *
+ * @param slr
+ *   A pointer to the recursive spinlock.
+ */
+static inline void rte_spinlock_recursive_lock_tm(
+	rte_spinlock_recursive_t *slr);
+
+/**
+ * Commit hardware memory transaction or release the recursive spinlock
+ * if the recursive spinlock is used as a fall-back
+ *
+ * @param slr
+ *   A pointer to the recursive spinlock.
+ */
+static inline void rte_spinlock_recursive_unlock_tm(
+	rte_spinlock_recursive_t *slr);
+
+/**
+ * Try to execute critical section in a hardware memory transaction,
+ * if it fails or not available try to take the recursive lock
+ *
+ * NOTE: An attempt to perform a HW I/O operation inside a hardware memory
+ * transaction always aborts the transaction since the CPU is not able to
+ * roll-back should the transaction fail. Therefore, hardware transactional
+ * locks are not advised to be used around rte_eth_rx_burst() and
+ * rte_eth_tx_burst() calls.
+ *
+ * @param slr
+ *   A pointer to the recursive spinlock.
+ * @return
+ *   1 if the hardware memory transaction is successfully started
+ *   or lock is successfully taken; 0 otherwise.
+ */
+static inline int rte_spinlock_recursive_trylock_tm(
+	rte_spinlock_recursive_t *slr);
+
+#endif /* _RTE_SPINLOCK_H_ */