Imported Upstream version 16.07-rc4

[deb_dpdk.git] / lib / librte_ring / rte_ring.h

diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h
index eb45e41..f928324 100644 (file)
--- a/lib/librte_ring/rte_ring.h
+++ b/lib/librte_ring/rte_ring.h
@@ -100,6 +100,7 @@ extern "C" {
 #include <rte_lcore.h>
 #include <rte_atomic.h>
 #include <rte_branch_prediction.h>
+#include <rte_memzone.h>
 
 #define RTE_TAILQ_RING_NAME "RTE_RING"
 
@@ -126,8 +127,10 @@ struct rte_ring_debug_stats {
 } __rte_cache_aligned;
 #endif
 
-#define RTE_RING_NAMESIZE 32 /**< The maximum length of a ring name. */
 #define RTE_RING_MZ_PREFIX "RG_"
+/**< The maximum length of a ring name. */
+#define RTE_RING_NAMESIZE (RTE_MEMZONE_NAMESIZE - \
+                          sizeof(RTE_RING_MZ_PREFIX) + 1)
 
 #ifndef RTE_RING_PAUSE_REP_COUNT
 #define RTE_RING_PAUSE_REP_COUNT 0 /**< Yield after pause num of times, no yield
@@ -147,7 +150,12 @@ struct rte_memzone; /* forward declaration, so as not to require memzone.h */
  * a problem.
  */
 struct rte_ring {
-       char name[RTE_RING_NAMESIZE];    /**< Name of the ring. */
+       /*
+        * Note: this field kept the RTE_MEMZONE_NAMESIZE size due to ABI
+        * compatibility requirements, it could be changed to RTE_RING_NAMESIZE
+        * next time the ABI changes
+        */
+       char name[RTE_MEMZONE_NAMESIZE];    /**< Name of the ring. */
        int flags;                       /**< Flags supplied at creation. */
        const struct rte_memzone *memzone;
                        /**< Memzone, if any, containing the rte_ring */
@@ -748,7 +756,7 @@ __rte_ring_sc_do_dequeue(struct rte_ring *r, void **obj_table,
 
        /* copy in table */
        DEQUEUE_PTRS();
-       rte_smp_rmb();
+       rte_smp_wmb();
 
        __RING_STAT_ADD(r, deq_success, n);
        r->cons.tail = cons_next;