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* [dpdk-dev] [PATCH 1/2] ring: increase maximum ring size
@ 2017-09-07 12:20 Olivier Matz
  2017-09-07 12:20 ` [dpdk-dev] [PATCH 2/2] test/ring: do not mask result of enqueue or dequeue Olivier Matz
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Olivier Matz @ 2017-09-07 12:20 UTC (permalink / raw)
  To: dev; +Cc: venki497, bruce.richardson

There is no reason to prevent ring from beeing larger than 0x0FFFFFFF.
Increase the maximum size to 0x7FFFFFFF, which is the maximum possible
without changing the code and the structure definition (size is stored
on a uint32_t).

Link: http://dpdk.org/ml/archives/dev/2017-September/074701.html

Suggested-by: Venkatesh Nuthula <venki497@gmail.com>
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---
 lib/librte_ring/rte_ring.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h
index 8f5a4937f..9a211264a 100644
--- a/lib/librte_ring/rte_ring.h
+++ b/lib/librte_ring/rte_ring.h
@@ -174,7 +174,7 @@ struct rte_ring {
  * ring space will be wasted.
  */
 #define RING_F_EXACT_SZ 0x0004
-#define RTE_RING_SZ_MASK  (unsigned)(0x0fffffff) /**< Ring size mask */
+#define RTE_RING_SZ_MASK  (unsigned)(0x7fffffff) /**< Ring size mask */
 
 /* @internal defines for passing to the enqueue dequeue worker functions */
 #define __IS_SP 1
-- 
2.11.0

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2017-10-05 21:25 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-09-07 12:20 [dpdk-dev] [PATCH 1/2] ring: increase maximum ring size Olivier Matz
2017-09-07 12:20 ` [dpdk-dev] [PATCH 2/2] test/ring: do not mask result of enqueue or dequeue Olivier Matz
2017-09-18 13:50   ` Burakov, Anatoly
2017-09-18 13:49 ` [dpdk-dev] [PATCH 1/2] ring: increase maximum ring size Burakov, Anatoly
2017-09-20 11:32 ` [dpdk-dev] [PATCH v2 " Olivier Matz
2017-09-20 11:32   ` [dpdk-dev] [PATCH v2 2/2] test/ring: do not mask result of enqueue or dequeue Olivier Matz
2017-10-05 21:25   ` [dpdk-dev] [PATCH v2 1/2] ring: increase maximum ring size Thomas Monjalon

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