gpudev: fix page alignment in communication list

[dpdk.git] / lib / ring / rte_ring_c11_pvt.h

diff --git a/lib/ring/rte_ring_c11_pvt.h b/lib/ring/rte_ring_c11_pvt.h
index 759192f..f895950 100644 (file)
--- a/lib/ring/rte_ring_c11_pvt.h
+++ b/lib/ring/rte_ring_c11_pvt.h
@@ -2,6 +2,7 @@
  *
  * Copyright (c) 2017,2018 HXT-semitech Corporation.
  * Copyright (c) 2007-2009 Kip Macy kmacy@freebsd.org
+ * Copyright (c) 2021 Arm Limited
  * All rights reserved.
  * Derived from FreeBSD's bufring.h
  * Used as BSD-3 Licensed with permission from Kip Macy.
@@ -21,8 +22,7 @@ __rte_ring_update_tail(struct rte_ring_headtail *ht, uint32_t old_val,
         * we need to wait for them to complete
         */
        if (!single)
-               while (unlikely(ht->tail != old_val))
-                       rte_pause();
+               rte_wait_until_equal_32(&ht->tail, old_val, __ATOMIC_RELAXED);
 
        __atomic_store_n(&ht->tail, new_val, __ATOMIC_RELEASE);
 }
@@ -111,7 +111,7 @@ __rte_ring_move_prod_head(struct rte_ring *r, unsigned int is_sp,
  * @param is_sc
  *   Indicates whether multi-consumer path is needed or not
  * @param n
- *   The number of elements we will want to enqueue, i.e. how far should the
+ *   The number of elements we will want to dequeue, i.e. how far should the
  *   head be moved
  * @param behavior
  *   RTE_RING_QUEUE_FIXED:    Dequeue a fixed number of items from a ring