diff mbox

[dpdk-dev,v2,1/2] ring: increase maximum ring size

Message ID 20170920113216.1869-1-olivier.matz@6wind.com (mailing list archive)
State Accepted, archived
Headers

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Olivier Matz Sept. 20, 2017, 11:32 a.m. UTC 
  There is no reason to prevent ring from being 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>
Reviewed-by: Anatoly Burakov <anatoly.burakov@intel.com>
---

v1->v2
- fix checkpatch issues

 lib/librte_ring/rte_ring.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Thomas Monjalon Oct. 5, 2017, 9:25 p.m. UTC | #1 
20/09/2017 13:32, Olivier Matz:
> There is no reason to prevent ring from being 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>
> Reviewed-by: Anatoly Burakov <anatoly.burakov@intel.com>

Applied, thanks
diff mbox

Patch

diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h
index 8f5a4937f..5e9b3b7b4 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  (0x7fffffffU) /**< Ring size mask */
 
 /* @internal defines for passing to the enqueue dequeue worker functions */
 #define __IS_SP 1