[dpdk-dev] [PATCH RFCv2 2/4] ring: separate common and rte_ring specific functions

[Bruce Richardson <bruce.richardson@intel.com>]

Provide a separate rte_ring implementation which just calls into the
common ring code. This allows us to generalise the common ring code
without affecting the API/ABI of the rte_ring. The common functions
are now all renamed to have an rte_common_ring prefix.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---
 lib/librte_ring/Makefile          |   1 +
 lib/librte_ring/rte_common_ring.c |  57 ++--
 lib/librte_ring/rte_common_ring.h | 463 ++-----------------------
 lib/librte_ring/rte_ring.c        |  86 +++++
 lib/librte_ring/rte_ring.h        | 692 +++++++++++++++++++++++++++++++++++++-
 5 files changed, 832 insertions(+), 467 deletions(-)
 create mode 100644 lib/librte_ring/rte_ring.c
 mode change 120000 => 100644 lib/librte_ring/rte_ring.h

diff --git a/lib/librte_ring/Makefile b/lib/librte_ring/Makefile
index 1e2396e..5cebb29 100644
--- a/lib/librte_ring/Makefile
+++ b/lib/librte_ring/Makefile
@@ -42,6 +42,7 @@ LIBABIVER := 1
 
 # all source are stored in SRCS-y
 SRCS-$(CONFIG_RTE_LIBRTE_RING) += rte_common_ring.c
+SRCS-$(CONFIG_RTE_LIBRTE_RING) += rte_ring.c
 
 # install includes
 SYMLINK-$(CONFIG_RTE_LIBRTE_RING)-include += rte_ring.h
diff --git a/lib/librte_ring/rte_common_ring.c b/lib/librte_ring/rte_common_ring.c
index ca0a108..a0c4b5a 100644
--- a/lib/librte_ring/rte_common_ring.c
+++ b/lib/librte_ring/rte_common_ring.c
@@ -89,19 +89,19 @@
 
 #include "rte_ring.h"
 
-TAILQ_HEAD(rte_ring_list, rte_tailq_entry);
+TAILQ_HEAD(rte_common_ring_list, rte_tailq_entry);
 
-static struct rte_tailq_elem rte_ring_tailq = {
+static struct rte_tailq_elem rte_common_ring_tailq = {
 	.name = RTE_TAILQ_RING_NAME,
 };
-EAL_REGISTER_TAILQ(rte_ring_tailq)
+EAL_REGISTER_TAILQ(rte_common_ring_tailq)
 
 /* true if x is a power of 2 */
 #define POWEROF2(x) ((((x)-1) & (x)) == 0)
 
 /* return the size of memory occupied by a ring */
 ssize_t
-rte_ring_get_memsize(unsigned count)
+rte_common_ring_get_memsize(unsigned count)
 {
 	ssize_t sz;
 
@@ -119,7 +119,7 @@ rte_ring_get_memsize(unsigned count)
 }
 
 int
-rte_ring_init(struct rte_ring *r, const char *name, unsigned count,
+rte_common_ring_init(struct rte_ring *r, const char *name, unsigned count,
 	unsigned flags)
 {
 	int ret;
@@ -134,7 +134,7 @@ rte_ring_init(struct rte_ring *r, const char *name, unsigned count,
 	RTE_BUILD_BUG_ON((offsetof(struct rte_ring, prod) &
 			  RTE_CACHE_LINE_MASK) != 0);
 #ifdef RTE_LIBRTE_RING_DEBUG
-	RTE_BUILD_BUG_ON((sizeof(struct rte_ring_debug_stats) &
+	RTE_BUILD_BUG_ON((sizeof(struct rte_common_ring_debug_stats) &
 			  RTE_CACHE_LINE_MASK) != 0);
 	RTE_BUILD_BUG_ON((offsetof(struct rte_ring, stats) &
 			  RTE_CACHE_LINE_MASK) != 0);
@@ -159,7 +159,7 @@ rte_ring_init(struct rte_ring *r, const char *name, unsigned count,
 
 /* create the ring */
 struct rte_ring *
-rte_ring_create(const char *name, unsigned count, int socket_id,
+rte_common_ring_create(const char *name, unsigned count, int socket_id,
 		unsigned flags)
 {
 	char mz_name[RTE_MEMZONE_NAMESIZE];
@@ -168,12 +168,12 @@ rte_ring_create(const char *name, unsigned count, int socket_id,
 	const struct rte_memzone *mz;
 	ssize_t ring_size;
 	int mz_flags = 0;
-	struct rte_ring_list* ring_list = NULL;
+	struct rte_common_ring_list* ring_list = NULL;
 	int ret;
 
-	ring_list = RTE_TAILQ_CAST(rte_ring_tailq.head, rte_ring_list);
+	ring_list = RTE_TAILQ_CAST(rte_common_ring_tailq.head, rte_common_ring_list);
 
-	ring_size = rte_ring_get_memsize(count);
+	ring_size = rte_common_ring_get_memsize(count);
 	if (ring_size < 0) {
 		rte_errno = ring_size;
 		return NULL;
@@ -203,7 +203,7 @@ rte_ring_create(const char *name, unsigned count, int socket_id,
 		r = mz->addr;
 		/* no need to check return value here, we already checked the
 		 * arguments above */
-		rte_ring_init(r, name, count, flags);
+		rte_common_ring_init(r, name, count, flags);
 
 		te->data = (void *) r;
 		r->memzone = mz;
@@ -221,20 +221,20 @@ rte_ring_create(const char *name, unsigned count, int socket_id,
 
 /* free the ring */
 void
-rte_ring_free(struct rte_ring *r)
+rte_common_ring_free(struct rte_ring *r)
 {
-	struct rte_ring_list *ring_list = NULL;
+	struct rte_common_ring_list *ring_list = NULL;
 	struct rte_tailq_entry *te;
 
 	if (r == NULL)
 		return;
 
 	/*
-	 * Ring was not created with rte_ring_create,
+	 * Ring was not created with rte_common_ring_create,
 	 * therefore, there is no memzone to free.
 	 */
 	if (r->memzone == NULL) {
-		RTE_LOG(ERR, RING, "Cannot free ring (not created with rte_ring_create()");
+		RTE_LOG(ERR, RING, "Cannot free ring (not created with rte_common_ring_create()");
 		return;
 	}
 
@@ -243,7 +243,7 @@ rte_ring_free(struct rte_ring *r)
 		return;
 	}
 
-	ring_list = RTE_TAILQ_CAST(rte_ring_tailq.head, rte_ring_list);
+	ring_list = RTE_TAILQ_CAST(rte_common_ring_tailq.head, rte_common_ring_list);
 	rte_rwlock_write_lock(RTE_EAL_TAILQ_RWLOCK);
 
 	/* find out tailq entry */
@@ -269,7 +269,7 @@ rte_ring_free(struct rte_ring *r)
  * disabled
  */
 int
-rte_ring_set_water_mark(struct rte_ring *r, unsigned count)
+rte_common_ring_set_water_mark(struct rte_ring *r, unsigned count)
 {
 	if (count >= r->prod.size)
 		return -EINVAL;
@@ -284,10 +284,10 @@ rte_ring_set_water_mark(struct rte_ring *r, unsigned count)
 
 /* dump the status of the ring on the console */
 void
-rte_ring_dump(FILE *f, const struct rte_ring *r)
+rte_common_ring_dump(FILE *f, const struct rte_ring *r)
 {
 #ifdef RTE_LIBRTE_RING_DEBUG
-	struct rte_ring_debug_stats sum;
+	struct rte_common_ring_debug_stats sum;
 	unsigned lcore_id;
 #endif
 
@@ -298,8 +298,8 @@ rte_ring_dump(FILE *f, const struct rte_ring *r)
 	fprintf(f, "  ch=%"PRIu32"\n", r->cons.head);
 	fprintf(f, "  pt=%"PRIu32"\n", r->prod.tail);
 	fprintf(f, "  ph=%"PRIu32"\n", r->prod.head);
-	fprintf(f, "  used=%u\n", rte_ring_count(r));
-	fprintf(f, "  avail=%u\n", rte_ring_free_count(r));
+	fprintf(f, "  used=%u\n", rte_common_ring_count(r));
+	fprintf(f, "  avail=%u\n", rte_common_ring_free_count(r));
 	if (r->prod.watermark == r->prod.size)
 		fprintf(f, "  watermark=0\n");
 	else
@@ -338,17 +338,17 @@ rte_ring_dump(FILE *f, const struct rte_ring *r)
 
 /* dump the status of all rings on the console */
 void
-rte_ring_list_dump(FILE *f)
+rte_common_ring_list_dump(FILE *f)
 {
 	const struct rte_tailq_entry *te;
-	struct rte_ring_list *ring_list;
+	struct rte_common_ring_list *ring_list;
 
-	ring_list = RTE_TAILQ_CAST(rte_ring_tailq.head, rte_ring_list);
+	ring_list = RTE_TAILQ_CAST(rte_common_ring_tailq.head, rte_common_ring_list);
 
 	rte_rwlock_read_lock(RTE_EAL_TAILQ_RWLOCK);
 
 	TAILQ_FOREACH(te, ring_list, next) {
-		rte_ring_dump(f, (struct rte_ring *) te->data);
+		rte_common_ring_dump(f, (struct rte_ring *) te->data);
 	}
 
 	rte_rwlock_read_unlock(RTE_EAL_TAILQ_RWLOCK);
@@ -356,13 +356,14 @@ rte_ring_list_dump(FILE *f)
 
 /* search a ring from its name */
 struct rte_ring *
-rte_ring_lookup(const char *name)
+rte_common_ring_lookup(const char *name)
 {
 	struct rte_tailq_entry *te;
 	struct rte_ring *r = NULL;
-	struct rte_ring_list *ring_list;
+	struct rte_common_ring_list *ring_list;
 
-	ring_list = RTE_TAILQ_CAST(rte_ring_tailq.head, rte_ring_list);
+	ring_list = RTE_TAILQ_CAST(rte_common_ring_tailq.head,
+		rte_common_ring_list);
 
 	rte_rwlock_read_lock(RTE_EAL_TAILQ_RWLOCK);
 
diff --git a/lib/librte_ring/rte_common_ring.h b/lib/librte_ring/rte_common_ring.h
index e359aff..f2c1c46 100644
--- a/lib/librte_ring/rte_common_ring.h
+++ b/lib/librte_ring/rte_common_ring.h
@@ -63,8 +63,8 @@
  *
  ***************************************************************************/
 
-#ifndef _RTE_RING_H_
-#define _RTE_RING_H_
+#ifndef _RTE_COMMON_RING_H_
+#define _RTE_COMMON_RING_H_
 
 /**
  * @file
@@ -232,14 +232,14 @@ struct rte_ring {
  *   - The memory size needed for the ring on success.
  *   - -EINVAL if count is not a power of 2.
  */
-ssize_t rte_ring_get_memsize(unsigned count);
+ssize_t rte_common_ring_get_memsize(unsigned count);
 
 /**
  * Initialize a ring structure.
  *
  * Initialize a ring structure in memory pointed by "r". The size of the
  * memory area must be large enough to store the ring structure and the
- * object table. It is advised to use rte_ring_get_memsize() to get the
+ * object table. It is advised to use rte_common_ring_get_memsize() to get the
  * appropriate size.
  *
  * The ring size is set to *count*, which must be a power of two. Water
@@ -260,22 +260,22 @@ ssize_t rte_ring_get_memsize(unsigned count);
  * @param flags
  *   An OR of the following:
  *    - RING_F_SP_ENQ: If this flag is set, the default behavior when
- *      using ``rte_ring_enqueue()`` or ``rte_ring_enqueue_bulk()``
+ *      using ``rte_common_ring_enqueue()`` or ``rte_common_ring_enqueue_bulk()``
  *      is "single-producer". Otherwise, it is "multi-producers".
  *    - RING_F_SC_DEQ: If this flag is set, the default behavior when
- *      using ``rte_ring_dequeue()`` or ``rte_ring_dequeue_bulk()``
+ *      using ``rte_common_ring_dequeue()`` or ``rte_common_ring_dequeue_bulk()``
  *      is "single-consumer". Otherwise, it is "multi-consumers".
  * @return
  *   0 on success, or a negative value on error.
  */
-int rte_ring_init(struct rte_ring *r, const char *name, unsigned count,
+int rte_common_ring_init(struct rte_ring *r, const char *name, unsigned count,
 	unsigned flags);
 
 /**
  * Create a new ring named *name* in memory.
  *
  * This function uses ``memzone_reserve()`` to allocate memory. Then it
- * calls rte_ring_init() to initialize an empty ring.
+ * calls rte_common_ring_init() to initialize an empty ring.
  *
  * The new ring size is set to *count*, which must be a power of
  * two. Water marking is disabled by default. The real usable ring size
@@ -295,10 +295,10 @@ int rte_ring_init(struct rte_ring *r, const char *name, unsigned count,
  * @param flags
  *   An OR of the following:
  *    - RING_F_SP_ENQ: If this flag is set, the default behavior when
- *      using ``rte_ring_enqueue()`` or ``rte_ring_enqueue_bulk()``
+ *      using ``rte_common_ring_enqueue()`` or ``rte_common_ring_enqueue_bulk()``
  *      is "single-producer". Otherwise, it is "multi-producers".
  *    - RING_F_SC_DEQ: If this flag is set, the default behavior when
- *      using ``rte_ring_dequeue()`` or ``rte_ring_dequeue_bulk()``
+ *      using ``rte_common_ring_dequeue()`` or ``rte_common_ring_dequeue_bulk()``
  *      is "single-consumer". Otherwise, it is "multi-consumers".
  * @return
  *   On success, the pointer to the new allocated ring. NULL on error with
@@ -310,7 +310,7 @@ int rte_ring_init(struct rte_ring *r, const char *name, unsigned count,
  *    - EEXIST - a memzone with the same name already exists
  *    - ENOMEM - no appropriate memory area found in which to create memzone
  */
-struct rte_ring *rte_ring_create(const char *name, unsigned count,
+struct rte_ring *rte_common_ring_create(const char *name, unsigned count,
 				 int socket_id, unsigned flags);
 /**
  * De-allocate all memory used by the ring.
@@ -318,7 +318,7 @@ struct rte_ring *rte_ring_create(const char *name, unsigned count,
  * @param r
  *   Ring to free
  */
-void rte_ring_free(struct rte_ring *r);
+void rte_common_ring_free(struct rte_ring *r);
 
 /**
  * Change the high water mark.
@@ -338,7 +338,7 @@ void rte_ring_free(struct rte_ring *r);
  *   - 0: Success; water mark changed.
  *   - -EINVAL: Invalid water mark value.
  */
-int rte_ring_set_water_mark(struct rte_ring *r, unsigned count);
+int rte_common_ring_set_water_mark(struct rte_ring *r, unsigned count);
 
 /**
  * Dump the status of the ring to a file.
@@ -348,7 +348,7 @@ int rte_ring_set_water_mark(struct rte_ring *r, unsigned count);
  * @param r
  *   A pointer to the ring structure.
  */
-void rte_ring_dump(FILE *f, const struct rte_ring *r);
+void rte_common_ring_dump(FILE *f, const struct rte_ring *r);
 
 /* the actual enqueue of pointers on the ring.
  * Placed here since identical code needed in both
@@ -428,7 +428,7 @@ void rte_ring_dump(FILE *f, const struct rte_ring *r);
  *   - n: Actual number of objects enqueued.
  */
 static inline int __attribute__((always_inline))
-__rte_ring_mp_do_enqueue(struct rte_ring *r, void * const *obj_table,
+__rte_common_ring_mp_do_enqueue(struct rte_ring *r, void * const *obj_table,
 			 unsigned n, enum rte_ring_queue_behavior behavior)
 {
 	uint32_t prod_head, prod_next;
@@ -537,7 +537,7 @@ __rte_ring_mp_do_enqueue(struct rte_ring *r, void * const *obj_table,
  *   - n: Actual number of objects enqueued.
  */
 static inline int __attribute__((always_inline))
-__rte_ring_sp_do_enqueue(struct rte_ring *r, void * const *obj_table,
+__rte_common_ring_sp_do_enqueue(struct rte_ring *r, void * const *obj_table,
 			 unsigned n, enum rte_ring_queue_behavior behavior)
 {
 	uint32_t prod_head, cons_tail;
@@ -621,7 +621,7 @@ __rte_ring_sp_do_enqueue(struct rte_ring *r, void * const *obj_table,
  */
 
 static inline int __attribute__((always_inline))
-__rte_ring_mc_do_dequeue(struct rte_ring *r, void **obj_table,
+__rte_common_ring_mc_do_dequeue(struct rte_ring *r, void **obj_table,
 		 unsigned n, enum rte_ring_queue_behavior behavior)
 {
 	uint32_t cons_head, prod_tail;
@@ -720,7 +720,7 @@ __rte_ring_mc_do_dequeue(struct rte_ring *r, void **obj_table,
  *   - n: Actual number of objects dequeued.
  */
 static inline int __attribute__((always_inline))
-__rte_ring_sc_do_dequeue(struct rte_ring *r, void **obj_table,
+__rte_common_ring_sc_do_dequeue(struct rte_ring *r, void **obj_table,
 		 unsigned n, enum rte_ring_queue_behavior behavior)
 {
 	uint32_t cons_head, prod_tail;
@@ -764,284 +764,6 @@ __rte_ring_sc_do_dequeue(struct rte_ring *r, void **obj_table,
 }
 
 /**
- * Enqueue several objects on the ring (multi-producers safe).
- *
- * This function uses a "compare and set" instruction to move the
- * producer index atomically.
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_table
- *   A pointer to a table of void * pointers (objects).
- * @param n
- *   The number of objects to add in the ring from the obj_table.
- * @return
- *   - 0: Success; objects enqueue.
- *   - -EDQUOT: Quota exceeded. The objects have been enqueued, but the
- *     high water mark is exceeded.
- *   - -ENOBUFS: Not enough room in the ring to enqueue, no object is enqueued.
- */
-static inline int __attribute__((always_inline))
-rte_ring_mp_enqueue_bulk(struct rte_ring *r, void * const *obj_table,
-			 unsigned n)
-{
-	return __rte_ring_mp_do_enqueue(r, obj_table, n, RTE_RING_QUEUE_FIXED);
-}
-
-/**
- * Enqueue several objects on a ring (NOT multi-producers safe).
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_table
- *   A pointer to a table of void * pointers (objects).
- * @param n
- *   The number of objects to add in the ring from the obj_table.
- * @return
- *   - 0: Success; objects enqueued.
- *   - -EDQUOT: Quota exceeded. The objects have been enqueued, but the
- *     high water mark is exceeded.
- *   - -ENOBUFS: Not enough room in the ring to enqueue; no object is enqueued.
- */
-static inline int __attribute__((always_inline))
-rte_ring_sp_enqueue_bulk(struct rte_ring *r, void * const *obj_table,
-			 unsigned n)
-{
-	return __rte_ring_sp_do_enqueue(r, obj_table, n, RTE_RING_QUEUE_FIXED);
-}
-
-/**
- * Enqueue several objects on a ring.
- *
- * This function calls the multi-producer or the single-producer
- * version depending on the default behavior that was specified at
- * ring creation time (see flags).
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_table
- *   A pointer to a table of void * pointers (objects).
- * @param n
- *   The number of objects to add in the ring from the obj_table.
- * @return
- *   - 0: Success; objects enqueued.
- *   - -EDQUOT: Quota exceeded. The objects have been enqueued, but the
- *     high water mark is exceeded.
- *   - -ENOBUFS: Not enough room in the ring to enqueue; no object is enqueued.
- */
-static inline int __attribute__((always_inline))
-rte_ring_enqueue_bulk(struct rte_ring *r, void * const *obj_table,
-		      unsigned n)
-{
-	if (r->prod.sp_enqueue)
-		return rte_ring_sp_enqueue_bulk(r, obj_table, n);
-	else
-		return rte_ring_mp_enqueue_bulk(r, obj_table, n);
-}
-
-/**
- * Enqueue one object on a ring (multi-producers safe).
- *
- * This function uses a "compare and set" instruction to move the
- * producer index atomically.
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj
- *   A pointer to the object to be added.
- * @return
- *   - 0: Success; objects enqueued.
- *   - -EDQUOT: Quota exceeded. The objects have been enqueued, but the
- *     high water mark is exceeded.
- *   - -ENOBUFS: Not enough room in the ring to enqueue; no object is enqueued.
- */
-static inline int __attribute__((always_inline))
-rte_ring_mp_enqueue(struct rte_ring *r, void *obj)
-{
-	return rte_ring_mp_enqueue_bulk(r, &obj, 1);
-}
-
-/**
- * Enqueue one object on a ring (NOT multi-producers safe).
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj
- *   A pointer to the object to be added.
- * @return
- *   - 0: Success; objects enqueued.
- *   - -EDQUOT: Quota exceeded. The objects have been enqueued, but the
- *     high water mark is exceeded.
- *   - -ENOBUFS: Not enough room in the ring to enqueue; no object is enqueued.
- */
-static inline int __attribute__((always_inline))
-rte_ring_sp_enqueue(struct rte_ring *r, void *obj)
-{
-	return rte_ring_sp_enqueue_bulk(r, &obj, 1);
-}
-
-/**
- * Enqueue one object on a ring.
- *
- * This function calls the multi-producer or the single-producer
- * version, depending on the default behaviour that was specified at
- * ring creation time (see flags).
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj
- *   A pointer to the object to be added.
- * @return
- *   - 0: Success; objects enqueued.
- *   - -EDQUOT: Quota exceeded. The objects have been enqueued, but the
- *     high water mark is exceeded.
- *   - -ENOBUFS: Not enough room in the ring to enqueue; no object is enqueued.
- */
-static inline int __attribute__((always_inline))
-rte_ring_enqueue(struct rte_ring *r, void *obj)
-{
-	if (r->prod.sp_enqueue)
-		return rte_ring_sp_enqueue(r, obj);
-	else
-		return rte_ring_mp_enqueue(r, obj);
-}
-
-/**
- * Dequeue several objects from a ring (multi-consumers safe).
- *
- * This function uses a "compare and set" instruction to move the
- * consumer index atomically.
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_table
- *   A pointer to a table of void * pointers (objects) that will be filled.
- * @param n
- *   The number of objects to dequeue from the ring to the obj_table.
- * @return
- *   - 0: Success; objects dequeued.
- *   - -ENOENT: Not enough entries in the ring to dequeue; no object is
- *     dequeued.
- */
-static inline int __attribute__((always_inline))
-rte_ring_mc_dequeue_bulk(struct rte_ring *r, void **obj_table, unsigned n)
-{
-	return __rte_ring_mc_do_dequeue(r, obj_table, n, RTE_RING_QUEUE_FIXED);
-}
-
-/**
- * Dequeue several objects from a ring (NOT multi-consumers safe).
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_table
- *   A pointer to a table of void * pointers (objects) that will be filled.
- * @param n
- *   The number of objects to dequeue from the ring to the obj_table,
- *   must be strictly positive.
- * @return
- *   - 0: Success; objects dequeued.
- *   - -ENOENT: Not enough entries in the ring to dequeue; no object is
- *     dequeued.
- */
-static inline int __attribute__((always_inline))
-rte_ring_sc_dequeue_bulk(struct rte_ring *r, void **obj_table, unsigned n)
-{
-	return __rte_ring_sc_do_dequeue(r, obj_table, n, RTE_RING_QUEUE_FIXED);
-}
-
-/**
- * Dequeue several objects from a ring.
- *
- * This function calls the multi-consumers or the single-consumer
- * version, depending on the default behaviour that was specified at
- * ring creation time (see flags).
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_table
- *   A pointer to a table of void * pointers (objects) that will be filled.
- * @param n
- *   The number of objects to dequeue from the ring to the obj_table.
- * @return
- *   - 0: Success; objects dequeued.
- *   - -ENOENT: Not enough entries in the ring to dequeue, no object is
- *     dequeued.
- */
-static inline int __attribute__((always_inline))
-rte_ring_dequeue_bulk(struct rte_ring *r, void **obj_table, unsigned n)
-{
-	if (r->cons.sc_dequeue)
-		return rte_ring_sc_dequeue_bulk(r, obj_table, n);
-	else
-		return rte_ring_mc_dequeue_bulk(r, obj_table, n);
-}
-
-/**
- * Dequeue one object from a ring (multi-consumers safe).
- *
- * This function uses a "compare and set" instruction to move the
- * consumer index atomically.
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_p
- *   A pointer to a void * pointer (object) that will be filled.
- * @return
- *   - 0: Success; objects dequeued.
- *   - -ENOENT: Not enough entries in the ring to dequeue; no object is
- *     dequeued.
- */
-static inline int __attribute__((always_inline))
-rte_ring_mc_dequeue(struct rte_ring *r, void **obj_p)
-{
-	return rte_ring_mc_dequeue_bulk(r, obj_p, 1);
-}
-
-/**
- * Dequeue one object from a ring (NOT multi-consumers safe).
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_p
- *   A pointer to a void * pointer (object) that will be filled.
- * @return
- *   - 0: Success; objects dequeued.
- *   - -ENOENT: Not enough entries in the ring to dequeue, no object is
- *     dequeued.
- */
-static inline int __attribute__((always_inline))
-rte_ring_sc_dequeue(struct rte_ring *r, void **obj_p)
-{
-	return rte_ring_sc_dequeue_bulk(r, obj_p, 1);
-}
-
-/**
- * Dequeue one object from a ring.
- *
- * This function calls the multi-consumers or the single-consumer
- * version depending on the default behaviour that was specified at
- * ring creation time (see flags).
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_p
- *   A pointer to a void * pointer (object) that will be filled.
- * @return
- *   - 0: Success, objects dequeued.
- *   - -ENOENT: Not enough entries in the ring to dequeue, no object is
- *     dequeued.
- */
-static inline int __attribute__((always_inline))
-rte_ring_dequeue(struct rte_ring *r, void **obj_p)
-{
-	if (r->cons.sc_dequeue)
-		return rte_ring_sc_dequeue(r, obj_p);
-	else
-		return rte_ring_mc_dequeue(r, obj_p);
-}
-
-/**
  * Test if a ring is full.
  *
  * @param r
@@ -1051,7 +773,7 @@ rte_ring_dequeue(struct rte_ring *r, void **obj_p)
  *   - 0: The ring is not full.
  */
 static inline int
-rte_ring_full(const struct rte_ring *r)
+rte_common_ring_full(const struct rte_ring *r)
 {
 	uint32_t prod_tail = r->prod.tail;
 	uint32_t cons_tail = r->cons.tail;
@@ -1068,7 +790,7 @@ rte_ring_full(const struct rte_ring *r)
  *   - 0: The ring is not empty.
  */
 static inline int
-rte_ring_empty(const struct rte_ring *r)
+rte_common_ring_empty(const struct rte_ring *r)
 {
 	uint32_t prod_tail = r->prod.tail;
 	uint32_t cons_tail = r->cons.tail;
@@ -1084,7 +806,7 @@ rte_ring_empty(const struct rte_ring *r)
  *   The number of entries in the ring.
  */
 static inline unsigned
-rte_ring_count(const struct rte_ring *r)
+rte_common_ring_count(const struct rte_ring *r)
 {
 	uint32_t prod_tail = r->prod.tail;
 	uint32_t cons_tail = r->cons.tail;
@@ -1100,7 +822,7 @@ rte_ring_count(const struct rte_ring *r)
  *   The number of free entries in the ring.
  */
 static inline unsigned
-rte_ring_free_count(const struct rte_ring *r)
+rte_common_ring_free_count(const struct rte_ring *r)
 {
 	uint32_t prod_tail = r->prod.tail;
 	uint32_t cons_tail = r->cons.tail;
@@ -1113,7 +835,7 @@ rte_ring_free_count(const struct rte_ring *r)
  * @param f
  *   A pointer to a file for output
  */
-void rte_ring_list_dump(FILE *f);
+void rte_common_ring_list_dump(FILE *f);
 
 /**
  * Search a ring from its name
@@ -1125,145 +847,10 @@ void rte_ring_list_dump(FILE *f);
  *   with rte_errno set appropriately. Possible rte_errno values include:
  *    - ENOENT - required entry not available to return.
  */
-struct rte_ring *rte_ring_lookup(const char *name);
-
-/**
- * Enqueue several objects on the ring (multi-producers safe).
- *
- * This function uses a "compare and set" instruction to move the
- * producer index atomically.
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_table
- *   A pointer to a table of void * pointers (objects).
- * @param n
- *   The number of objects to add in the ring from the obj_table.
- * @return
- *   - n: Actual number of objects enqueued.
- */
-static inline unsigned __attribute__((always_inline))
-rte_ring_mp_enqueue_burst(struct rte_ring *r, void * const *obj_table,
-			 unsigned n)
-{
-	return __rte_ring_mp_do_enqueue(r, obj_table, n, RTE_RING_QUEUE_VARIABLE);
-}
-
-/**
- * Enqueue several objects on a ring (NOT multi-producers safe).
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_table
- *   A pointer to a table of void * pointers (objects).
- * @param n
- *   The number of objects to add in the ring from the obj_table.
- * @return
- *   - n: Actual number of objects enqueued.
- */
-static inline unsigned __attribute__((always_inline))
-rte_ring_sp_enqueue_burst(struct rte_ring *r, void * const *obj_table,
-			 unsigned n)
-{
-	return __rte_ring_sp_do_enqueue(r, obj_table, n, RTE_RING_QUEUE_VARIABLE);
-}
-
-/**
- * Enqueue several objects on a ring.
- *
- * This function calls the multi-producer or the single-producer
- * version depending on the default behavior that was specified at
- * ring creation time (see flags).
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_table
- *   A pointer to a table of void * pointers (objects).
- * @param n
- *   The number of objects to add in the ring from the obj_table.
- * @return
- *   - n: Actual number of objects enqueued.
- */
-static inline unsigned __attribute__((always_inline))
-rte_ring_enqueue_burst(struct rte_ring *r, void * const *obj_table,
-		      unsigned n)
-{
-	if (r->prod.sp_enqueue)
-		return rte_ring_sp_enqueue_burst(r, obj_table, n);
-	else
-		return rte_ring_mp_enqueue_burst(r, obj_table, n);
-}
-
-/**
- * Dequeue several objects from a ring (multi-consumers safe). When the request
- * objects are more than the available objects, only dequeue the actual number
- * of objects
- *
- * This function uses a "compare and set" instruction to move the
- * consumer index atomically.
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_table
- *   A pointer to a table of void * pointers (objects) that will be filled.
- * @param n
- *   The number of objects to dequeue from the ring to the obj_table.
- * @return
- *   - n: Actual number of objects dequeued, 0 if ring is empty
- */
-static inline unsigned __attribute__((always_inline))
-rte_ring_mc_dequeue_burst(struct rte_ring *r, void **obj_table, unsigned n)
-{
-	return __rte_ring_mc_do_dequeue(r, obj_table, n, RTE_RING_QUEUE_VARIABLE);
-}
-
-/**
- * Dequeue several objects from a ring (NOT multi-consumers safe).When the
- * request objects are more than the available objects, only dequeue the
- * actual number of objects
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_table
- *   A pointer to a table of void * pointers (objects) that will be filled.
- * @param n
- *   The number of objects to dequeue from the ring to the obj_table.
- * @return
- *   - n: Actual number of objects dequeued, 0 if ring is empty
- */
-static inline unsigned __attribute__((always_inline))
-rte_ring_sc_dequeue_burst(struct rte_ring *r, void **obj_table, unsigned n)
-{
-	return __rte_ring_sc_do_dequeue(r, obj_table, n, RTE_RING_QUEUE_VARIABLE);
-}
-
-/**
- * Dequeue multiple objects from a ring up to a maximum number.
- *
- * This function calls the multi-consumers or the single-consumer
- * version, depending on the default behaviour that was specified at
- * ring creation time (see flags).
- *
- * @param r
- *   A pointer to the ring structure.
- * @param obj_table
- *   A pointer to a table of void * pointers (objects) that will be filled.
- * @param n
- *   The number of objects to dequeue from the ring to the obj_table.
- * @return
- *   - Number of objects dequeued
- */
-static inline unsigned __attribute__((always_inline))
-rte_ring_dequeue_burst(struct rte_ring *r, void **obj_table, unsigned n)
-{
-	if (r->cons.sc_dequeue)
-		return rte_ring_sc_dequeue_burst(r, obj_table, n);
-	else
-		return rte_ring_mc_dequeue_burst(r, obj_table, n);
-}
+struct rte_ring *rte_common_ring_lookup(const char *name);
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif /* _RTE_RING_H_ */
+#endif /* _RTE_COMMON_RING_H_ */
diff --git a/lib/librte_ring/rte_ring.c b/lib/librte_ring/rte_ring.c
new file mode 100644
index 0000000..16ddc39
--- /dev/null
+++ b/lib/librte_ring/rte_ring.c
@@ -0,0 +1,86 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2017 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_ring.h"
+
+ssize_t
+rte_ring_get_memsize(unsigned count)
+{
+	return rte_common_ring_get_memsize(count);
+}
+
+int
+rte_ring_init(struct rte_ring *r, const char *name, unsigned count,
+	unsigned flags)
+{
+	return rte_common_ring_init(r, name, count, flags);
+}
+
+
+struct rte_ring *
+rte_ring_create(const char *name, unsigned count, int socket_id,
+		unsigned flags)
+{
+	return rte_common_ring_create(name, count, socket_id, flags);
+}
+
+void
+rte_ring_free(struct rte_ring *r)
+{
+	return rte_common_ring_free(r);
+}
+
+int
+rte_ring_set_water_mark(struct rte_ring *r, unsigned count)
+{
+	return rte_common_ring_set_water_mark(r, count);
+}
+
+void
+rte_ring_dump(FILE *f, const struct rte_ring *r)
+{
+	return rte_common_ring_dump(f, r);
+}
+
+void
+rte_ring_list_dump(FILE *f)
+{
+	rte_common_ring_list_dump(f);
+}
+
+struct rte_ring *
+rte_ring_lookup(const char *name)
+{
+	return rte_common_ring_lookup(name);
+}
+
diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h
deleted file mode 120000
index 54dad23..0000000
--- a/lib/librte_ring/rte_ring.h
+++ /dev/null
@@ -1 +0,0 @@
-rte_common_ring.h
\ No newline at end of file
diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h
new file mode 100644
index 0000000..993796f
--- /dev/null
+++ b/lib/librte_ring/rte_ring.h
@@ -0,0 +1,691 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2017 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_RING_H_
+#define _RTE_RING_H_
+
+/**
+ * @file
+ * RTE Ring
+ *
+ * The Ring Manager is a fixed-size queue, implemented as a table of
+ * pointers. Head and tail pointers are modified atomically, allowing
+ * concurrent access to it. It has the following features:
+ *
+ * - FIFO (First In First Out)
+ * - Maximum size is fixed; the pointers are stored in a table.
+ * - Lockless implementation.
+ * - Multi- or single-consumer dequeue.
+ * - Multi- or single-producer enqueue.
+ * - Bulk dequeue.
+ * - Bulk enqueue.
+ *
+ * Note: the ring implementation is not preemptable. A lcore must not
+ * be interrupted by another task that uses the same ring.
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "rte_common_ring.h"
+
+/**
+ * Calculate the memory size needed for a ring
+ *
+ * This function returns the number of bytes needed for a ring, given
+ * the number of elements in it. This value is the sum of the size of
+ * the structure rte_ring and the size of the memory needed by the
+ * objects pointers. The value is aligned to a cache line size.
+ *
+ * @param count
+ *   The number of elements in the ring (must be a power of 2).
+ * @return
+ *   - The memory size needed for the ring on success.
+ *   - -EINVAL if count is not a power of 2.
+ */
+ssize_t rte_ring_get_memsize(unsigned count);
+
+/**
+ * Initialize a ring structure.
+ *
+ * Initialize a ring structure in memory pointed by "r". The size of the
+ * memory area must be large enough to store the ring structure and the
+ * object table. It is advised to use rte_ring_get_memsize() to get the
+ * appropriate size.
+ *
+ * The ring size is set to *count*, which must be a power of two. Water
+ * marking is disabled by default. The real usable ring size is
+ * *count-1* instead of *count* to differentiate a free ring from an
+ * empty ring.
+ *
+ * The ring is not added in RTE_TAILQ_RING global list. Indeed, the
+ * memory given by the caller may not be shareable among dpdk
+ * processes.
+ *
+ * @param r
+ *   The pointer to the ring structure followed by the objects table.
+ * @param name
+ *   The name of the ring.
+ * @param count
+ *   The number of elements in the ring (must be a power of 2).
+ * @param flags
+ *   An OR of the following:
+ *    - RING_F_SP_ENQ: If this flag is set, the default behavior when
+ *      using ``rte_ring_enqueue()`` or ``rte_ring_enqueue_bulk()``
+ *      is "single-producer". Otherwise, it is "multi-producers".
+ *    - RING_F_SC_DEQ: If this flag is set, the default behavior when
+ *      using ``rte_ring_dequeue()`` or ``rte_ring_dequeue_bulk()``
+ *      is "single-consumer". Otherwise, it is "multi-consumers".
+ * @return
+ *   0 on success, or a negative value on error.
+ */
+int rte_ring_init(struct rte_ring *r, const char *name, unsigned count,
+	unsigned flags);
+
+/**
+ * Create a new ring named *name* in memory.
+ *
+ * This function uses ``memzone_reserve()`` to allocate memory. Then it
+ * calls rte_ring_init() to initialize an empty ring.
+ *
+ * The new ring size is set to *count*, which must be a power of
+ * two. Water marking is disabled by default. The real usable ring size
+ * is *count-1* instead of *count* to differentiate a free ring from an
+ * empty ring.
+ *
+ * The ring is added in RTE_TAILQ_RING list.
+ *
+ * @param name
+ *   The name of the ring.
+ * @param count
+ *   The size of the ring (must be a power of 2).
+ * @param socket_id
+ *   The *socket_id* argument is the socket identifier in case of
+ *   NUMA. The value can be *SOCKET_ID_ANY* if there is no NUMA
+ *   constraint for the reserved zone.
+ * @param flags
+ *   An OR of the following:
+ *    - RING_F_SP_ENQ: If this flag is set, the default behavior when
+ *      using ``rte_ring_enqueue()`` or ``rte_ring_enqueue_bulk()``
+ *      is "single-producer". Otherwise, it is "multi-producers".
+ *    - RING_F_SC_DEQ: If this flag is set, the default behavior when
+ *      using ``rte_ring_dequeue()`` or ``rte_ring_dequeue_bulk()``
+ *      is "single-consumer". Otherwise, it is "multi-consumers".
+ * @return
+ *   On success, the pointer to the new allocated ring. NULL on error with
+ *    rte_errno set appropriately. Possible errno values include:
+ *    - E_RTE_NO_CONFIG - function could not get pointer to rte_config structure
+ *    - E_RTE_SECONDARY - function was called from a secondary process instance
+ *    - EINVAL - count provided is not a power of 2
+ *    - ENOSPC - the maximum number of memzones has already been allocated
+ *    - EEXIST - a memzone with the same name already exists
+ *    - ENOMEM - no appropriate memory area found in which to create memzone
+ */
+struct rte_ring *rte_ring_create(const char *name, unsigned count,
+				 int socket_id, unsigned flags);
+/**
+ * De-allocate all memory used by the ring.
+ *
+ * @param r
+ *   Ring to free
+ */
+void rte_ring_free(struct rte_ring *r);
+
+/**
+ * Change the high water mark.
+ *
+ * If *count* is 0, water marking is disabled. Otherwise, it is set to the
+ * *count* value. The *count* value must be greater than 0 and less
+ * than the ring size.
+ *
+ * This function can be called at any time (not necessarily at
+ * initialization).
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param count
+ *   The new water mark value.
+ * @return
+ *   - 0: Success; water mark changed.
+ *   - -EINVAL: Invalid water mark value.
+ */
+int rte_ring_set_water_mark(struct rte_ring *r, unsigned count);
+
+/**
+ * Dump the status of the ring to a file.
+ *
+ * @param f
+ *   A pointer to a file for output
+ * @param r
+ *   A pointer to the ring structure.
+ */
+void rte_ring_dump(FILE *f, const struct rte_ring *r);
+
+/**
+ * Enqueue several objects on the ring (multi-producers safe).
+ *
+ * This function uses a "compare and set" instruction to move the
+ * producer index atomically.
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_table
+ *   A pointer to a table of void * pointers (objects).
+ * @param n
+ *   The number of objects to add in the ring from the obj_table.
+ * @return
+ *   - 0: Success; objects enqueue.
+ *   - -EDQUOT: Quota exceeded. The objects have been enqueued, but the
+ *     high water mark is exceeded.
+ *   - -ENOBUFS: Not enough room in the ring to enqueue, no object is enqueued.
+ */
+static inline int __attribute__((always_inline))
+rte_ring_mp_enqueue_bulk(struct rte_ring *r, void * const *obj_table,
+			 unsigned n)
+{
+	return __rte_common_ring_mp_do_enqueue(r, obj_table, n, RTE_RING_QUEUE_FIXED);
+}
+
+/**
+ * Enqueue several objects on a ring (NOT multi-producers safe).
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_table
+ *   A pointer to a table of void * pointers (objects).
+ * @param n
+ *   The number of objects to add in the ring from the obj_table.
+ * @return
+ *   - 0: Success; objects enqueued.
+ *   - -EDQUOT: Quota exceeded. The objects have been enqueued, but the
+ *     high water mark is exceeded.
+ *   - -ENOBUFS: Not enough room in the ring to enqueue; no object is enqueued.
+ */
+static inline int __attribute__((always_inline))
+rte_ring_sp_enqueue_bulk(struct rte_ring *r, void * const *obj_table,
+			 unsigned n)
+{
+	return __rte_common_ring_sp_do_enqueue(r, obj_table, n, RTE_RING_QUEUE_FIXED);
+}
+
+/**
+ * Enqueue several objects on a ring.
+ *
+ * This function calls the multi-producer or the single-producer
+ * version depending on the default behavior that was specified at
+ * ring creation time (see flags).
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_table
+ *   A pointer to a table of void * pointers (objects).
+ * @param n
+ *   The number of objects to add in the ring from the obj_table.
+ * @return
+ *   - 0: Success; objects enqueued.
+ *   - -EDQUOT: Quota exceeded. The objects have been enqueued, but the
+ *     high water mark is exceeded.
+ *   - -ENOBUFS: Not enough room in the ring to enqueue; no object is enqueued.
+ */
+static inline int __attribute__((always_inline))
+rte_ring_enqueue_bulk(struct rte_ring *r, void * const *obj_table,
+		      unsigned n)
+{
+	if (r->prod.sp_enqueue)
+		return rte_ring_sp_enqueue_bulk(r, obj_table, n);
+	else
+		return rte_ring_mp_enqueue_bulk(r, obj_table, n);
+}
+
+/**
+ * Enqueue one object on a ring (multi-producers safe).
+ *
+ * This function uses a "compare and set" instruction to move the
+ * producer index atomically.
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj
+ *   A pointer to the object to be added.
+ * @return
+ *   - 0: Success; objects enqueued.
+ *   - -EDQUOT: Quota exceeded. The objects have been enqueued, but the
+ *     high water mark is exceeded.
+ *   - -ENOBUFS: Not enough room in the ring to enqueue; no object is enqueued.
+ */
+static inline int __attribute__((always_inline))
+rte_ring_mp_enqueue(struct rte_ring *r, void *obj)
+{
+	return rte_ring_mp_enqueue_bulk(r, &obj, 1);
+}
+
+/**
+ * Enqueue one object on a ring (NOT multi-producers safe).
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj
+ *   A pointer to the object to be added.
+ * @return
+ *   - 0: Success; objects enqueued.
+ *   - -EDQUOT: Quota exceeded. The objects have been enqueued, but the
+ *     high water mark is exceeded.
+ *   - -ENOBUFS: Not enough room in the ring to enqueue; no object is enqueued.
+ */
+static inline int __attribute__((always_inline))
+rte_ring_sp_enqueue(struct rte_ring *r, void *obj)
+{
+	return rte_ring_sp_enqueue_bulk(r, &obj, 1);
+}
+
+/**
+ * Enqueue one object on a ring.
+ *
+ * This function calls the multi-producer or the single-producer
+ * version, depending on the default behaviour that was specified at
+ * ring creation time (see flags).
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj
+ *   A pointer to the object to be added.
+ * @return
+ *   - 0: Success; objects enqueued.
+ *   - -EDQUOT: Quota exceeded. The objects have been enqueued, but the
+ *     high water mark is exceeded.
+ *   - -ENOBUFS: Not enough room in the ring to enqueue; no object is enqueued.
+ */
+static inline int __attribute__((always_inline))
+rte_ring_enqueue(struct rte_ring *r, void *obj)
+{
+	if (r->prod.sp_enqueue)
+		return rte_ring_sp_enqueue(r, obj);
+	else
+		return rte_ring_mp_enqueue(r, obj);
+}
+
+/**
+ * Dequeue several objects from a ring (multi-consumers safe).
+ *
+ * This function uses a "compare and set" instruction to move the
+ * consumer index atomically.
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_table
+ *   A pointer to a table of void * pointers (objects) that will be filled.
+ * @param n
+ *   The number of objects to dequeue from the ring to the obj_table.
+ * @return
+ *   - 0: Success; objects dequeued.
+ *   - -ENOENT: Not enough entries in the ring to dequeue; no object is
+ *     dequeued.
+ */
+static inline int __attribute__((always_inline))
+rte_ring_mc_dequeue_bulk(struct rte_ring *r, void **obj_table, unsigned n)
+{
+	return __rte_common_ring_mc_do_dequeue(r, obj_table, n, RTE_RING_QUEUE_FIXED);
+}
+
+/**
+ * Dequeue several objects from a ring (NOT multi-consumers safe).
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_table
+ *   A pointer to a table of void * pointers (objects) that will be filled.
+ * @param n
+ *   The number of objects to dequeue from the ring to the obj_table,
+ *   must be strictly positive.
+ * @return
+ *   - 0: Success; objects dequeued.
+ *   - -ENOENT: Not enough entries in the ring to dequeue; no object is
+ *     dequeued.
+ */
+static inline int __attribute__((always_inline))
+rte_ring_sc_dequeue_bulk(struct rte_ring *r, void **obj_table, unsigned n)
+{
+	return __rte_common_ring_sc_do_dequeue(r, obj_table, n, RTE_RING_QUEUE_FIXED);
+}
+
+/**
+ * Dequeue several objects from a ring.
+ *
+ * This function calls the multi-consumers or the single-consumer
+ * version, depending on the default behaviour that was specified at
+ * ring creation time (see flags).
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_table
+ *   A pointer to a table of void * pointers (objects) that will be filled.
+ * @param n
+ *   The number of objects to dequeue from the ring to the obj_table.
+ * @return
+ *   - 0: Success; objects dequeued.
+ *   - -ENOENT: Not enough entries in the ring to dequeue, no object is
+ *     dequeued.
+ */
+static inline int __attribute__((always_inline))
+rte_ring_dequeue_bulk(struct rte_ring *r, void **obj_table, unsigned n)
+{
+	if (r->cons.sc_dequeue)
+		return rte_ring_sc_dequeue_bulk(r, obj_table, n);
+	else
+		return rte_ring_mc_dequeue_bulk(r, obj_table, n);
+}
+
+/**
+ * Dequeue one object from a ring (multi-consumers safe).
+ *
+ * This function uses a "compare and set" instruction to move the
+ * consumer index atomically.
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_p
+ *   A pointer to a void * pointer (object) that will be filled.
+ * @return
+ *   - 0: Success; objects dequeued.
+ *   - -ENOENT: Not enough entries in the ring to dequeue; no object is
+ *     dequeued.
+ */
+static inline int __attribute__((always_inline))
+rte_ring_mc_dequeue(struct rte_ring *r, void **obj_p)
+{
+	return rte_ring_mc_dequeue_bulk(r, obj_p, 1);
+}
+
+/**
+ * Dequeue one object from a ring (NOT multi-consumers safe).
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_p
+ *   A pointer to a void * pointer (object) that will be filled.
+ * @return
+ *   - 0: Success; objects dequeued.
+ *   - -ENOENT: Not enough entries in the ring to dequeue, no object is
+ *     dequeued.
+ */
+static inline int __attribute__((always_inline))
+rte_ring_sc_dequeue(struct rte_ring *r, void **obj_p)
+{
+	return rte_ring_sc_dequeue_bulk(r, obj_p, 1);
+}
+
+/**
+ * Dequeue one object from a ring.
+ *
+ * This function calls the multi-consumers or the single-consumer
+ * version depending on the default behaviour that was specified at
+ * ring creation time (see flags).
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_p
+ *   A pointer to a void * pointer (object) that will be filled.
+ * @return
+ *   - 0: Success, objects dequeued.
+ *   - -ENOENT: Not enough entries in the ring to dequeue, no object is
+ *     dequeued.
+ */
+static inline int __attribute__((always_inline))
+rte_ring_dequeue(struct rte_ring *r, void **obj_p)
+{
+	if (r->cons.sc_dequeue)
+		return rte_ring_sc_dequeue(r, obj_p);
+	else
+		return rte_ring_mc_dequeue(r, obj_p);
+}
+
+/**
+ * Test if a ring is full.
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @return
+ *   - 1: The ring is full.
+ *   - 0: The ring is not full.
+ */
+static inline int
+rte_ring_full(const struct rte_ring *r)
+{
+	return rte_common_ring_full(r);
+}
+
+/**
+ * Test if a ring is empty.
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @return
+ *   - 1: The ring is empty.
+ *   - 0: The ring is not empty.
+ */
+static inline int
+rte_ring_empty(const struct rte_ring *r)
+{
+	return rte_common_ring_empty(r);
+}
+
+/**
+ * Return the number of entries in a ring.
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @return
+ *   The number of entries in the ring.
+ */
+static inline unsigned
+rte_ring_count(const struct rte_ring *r)
+{
+	return rte_common_ring_count(r);
+}
+
+/**
+ * Return the number of free entries in a ring.
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @return
+ *   The number of free entries in the ring.
+ */
+static inline unsigned
+rte_ring_free_count(const struct rte_ring *r)
+{
+	return rte_common_ring_free_count(r);
+}
+
+/**
+ * Dump the status of all rings on the console
+ *
+ * @param f
+ *   A pointer to a file for output
+ */
+void rte_ring_list_dump(FILE *f);
+
+/**
+ * Search a ring from its name
+ *
+ * @param name
+ *   The name of the ring.
+ * @return
+ *   The pointer to the ring matching the name, or NULL if not found,
+ *   with rte_errno set appropriately. Possible rte_errno values include:
+ *    - ENOENT - required entry not available to return.
+ */
+struct rte_ring *rte_ring_lookup(const char *name);
+
+/**
+ * Enqueue several objects on the ring (multi-producers safe).
+ *
+ * This function uses a "compare and set" instruction to move the
+ * producer index atomically.
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_table
+ *   A pointer to a table of void * pointers (objects).
+ * @param n
+ *   The number of objects to add in the ring from the obj_table.
+ * @return
+ *   - n: Actual number of objects enqueued.
+ */
+static inline unsigned __attribute__((always_inline))
+rte_ring_mp_enqueue_burst(struct rte_ring *r, void * const *obj_table,
+			 unsigned n)
+{
+	return __rte_common_ring_mp_do_enqueue(r, obj_table, n, RTE_RING_QUEUE_VARIABLE);
+}
+
+/**
+ * Enqueue several objects on a ring (NOT multi-producers safe).
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_table
+ *   A pointer to a table of void * pointers (objects).
+ * @param n
+ *   The number of objects to add in the ring from the obj_table.
+ * @return
+ *   - n: Actual number of objects enqueued.
+ */
+static inline unsigned __attribute__((always_inline))
+rte_ring_sp_enqueue_burst(struct rte_ring *r, void * const *obj_table,
+			 unsigned n)
+{
+	return __rte_common_ring_sp_do_enqueue(r, obj_table, n, RTE_RING_QUEUE_VARIABLE);
+}
+
+/**
+ * Enqueue several objects on a ring.
+ *
+ * This function calls the multi-producer or the single-producer
+ * version depending on the default behavior that was specified at
+ * ring creation time (see flags).
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_table
+ *   A pointer to a table of void * pointers (objects).
+ * @param n
+ *   The number of objects to add in the ring from the obj_table.
+ * @return
+ *   - n: Actual number of objects enqueued.
+ */
+static inline unsigned __attribute__((always_inline))
+rte_ring_enqueue_burst(struct rte_ring *r, void * const *obj_table,
+		      unsigned n)
+{
+	if (r->prod.sp_enqueue)
+		return rte_ring_sp_enqueue_burst(r, obj_table, n);
+	else
+		return rte_ring_mp_enqueue_burst(r, obj_table, n);
+}
+
+/**
+ * Dequeue several objects from a ring (multi-consumers safe). When the request
+ * objects are more than the available objects, only dequeue the actual number
+ * of objects
+ *
+ * This function uses a "compare and set" instruction to move the
+ * consumer index atomically.
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_table
+ *   A pointer to a table of void * pointers (objects) that will be filled.
+ * @param n
+ *   The number of objects to dequeue from the ring to the obj_table.
+ * @return
+ *   - n: Actual number of objects dequeued, 0 if ring is empty
+ */
+static inline unsigned __attribute__((always_inline))
+rte_ring_mc_dequeue_burst(struct rte_ring *r, void **obj_table, unsigned n)
+{
+	return __rte_common_ring_mc_do_dequeue(r, obj_table, n, RTE_RING_QUEUE_VARIABLE);
+}
+
+/**
+ * Dequeue several objects from a ring (NOT multi-consumers safe).When the
+ * request objects are more than the available objects, only dequeue the
+ * actual number of objects
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_table
+ *   A pointer to a table of void * pointers (objects) that will be filled.
+ * @param n
+ *   The number of objects to dequeue from the ring to the obj_table.
+ * @return
+ *   - n: Actual number of objects dequeued, 0 if ring is empty
+ */
+static inline unsigned __attribute__((always_inline))
+rte_ring_sc_dequeue_burst(struct rte_ring *r, void **obj_table, unsigned n)
+{
+	return __rte_common_ring_sc_do_dequeue(r, obj_table, n, RTE_RING_QUEUE_VARIABLE);
+}
+
+/**
+ * Dequeue multiple objects from a ring up to a maximum number.
+ *
+ * This function calls the multi-consumers or the single-consumer
+ * version, depending on the default behaviour that was specified at
+ * ring creation time (see flags).
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ * @param obj_table
+ *   A pointer to a table of void * pointers (objects) that will be filled.
+ * @param n
+ *   The number of objects to dequeue from the ring to the obj_table.
+ * @return
+ *   - Number of objects dequeued
+ */
+static inline unsigned __attribute__((always_inline))
+rte_ring_dequeue_burst(struct rte_ring *r, void **obj_table, unsigned n)
+{
+	if (r->cons.sc_dequeue)
+		return rte_ring_sc_dequeue_burst(r, obj_table, n);
+	else
+		return rte_ring_mc_dequeue_burst(r, obj_table, n);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_RING_H_ */
-- 
2.9.3