X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_ring%2Frte_ring.h;h=2a9f768a1cafc64c2c279b3bf1122d5ae35e7d46;hb=ae65004fa7d2e72c1d640148eba1dbb6c52aacf1;hp=7a731d070d30feb8e4d5a051b51a97b4580e4b49;hpb=4a6e683c4c69904214cce6de97b32d209ef95711;p=dpdk.git

diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h
index 7a731d070d..2a9f768a1c 100644
--- a/lib/librte_ring/rte_ring.h
+++ b/lib/librte_ring/rte_ring.h
@@ -57,12 +57,10 @@ enum rte_ring_queue_behavior {
 };
 
 #define RTE_RING_MZ_PREFIX "RG_"
-/**< The maximum length of a ring name. */
+/** The maximum length of a ring name. */
 #define RTE_RING_NAMESIZE (RTE_MEMZONE_NAMESIZE - \
 			   sizeof(RTE_RING_MZ_PREFIX) + 1)
 
-struct rte_memzone; /* forward declaration, so as not to require memzone.h */
-
 /* structure to hold a pair of head/tail values and other metadata */
 struct rte_ring_headtail {
 	volatile uint32_t head;  /**< Prod/consumer head. */
@@ -302,12 +300,12 @@ void rte_ring_dump(FILE *f, const struct rte_ring *r);
  * (powerpc/arm).
  * There are 2 choices for the users
  * 1.use rmb() memory barrier
- * 2.use one-direcion load_acquire/store_release barrier,defined by
- * CONFIG_RTE_RING_USE_C11_MEM_MODEL=y
+ * 2.use one-direction load_acquire/store_release barrier,defined by
+ * CONFIG_RTE_USE_C11_MEM_MODEL=y
  * It depends on performance test results.
  * By default, move common functions to rte_ring_generic.h
  */
-#ifdef RTE_RING_USE_C11_MEM_MODEL
+#ifdef RTE_USE_C11_MEM_MODEL
 #include "rte_ring_c11_mem.h"
 #else
 #include "rte_ring_generic.h"
@@ -670,6 +668,23 @@ rte_ring_dequeue(struct rte_ring *r, void **obj_p)
 	return rte_ring_dequeue_bulk(r, obj_p, 1, NULL) ? 0 : -ENOENT;
 }
 
+/**
+ * Flush a ring.
+ *
+ * This function flush all the elements in a ring
+ *
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * @warning
+ * Make sure the ring is not in use while calling this function.
+ *
+ * @param r
+ *   A pointer to the ring structure.
+ */
+__rte_experimental
+void
+rte_ring_reset(struct rte_ring *r);
+
 /**
  * Return the number of entries in a ring.
  *