From patchwork Thu Sep 7 12:20:32 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olivier Matz X-Patchwork-Id: 28454 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 465E6199B1; Thu, 7 Sep 2017 14:20:50 +0200 (CEST) Received: from proxy.6wind.com (host.76.145.23.62.rev.coltfrance.com [62.23.145.76]) by dpdk.org (Postfix) with ESMTP id B587D968 for ; Thu, 7 Sep 2017 14:20:48 +0200 (CEST) Received: from glumotte.dev.6wind.com (unknown [10.16.0.195]) by proxy.6wind.com (Postfix) with ESMTP id A8D58CD5D8; Thu, 7 Sep 2017 14:17:06 +0200 (CEST) From: Olivier Matz To: dev@dpdk.org Cc: venki497@gmail.com, bruce.richardson@intel.com Date: Thu, 7 Sep 2017 14:20:32 +0200 Message-Id: <20170907122033.17983-1-olivier.matz@6wind.com> X-Mailer: git-send-email 2.11.0 Subject: [dpdk-dev] [PATCH 1/2] ring: increase maximum ring size X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" 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 Signed-off-by: Olivier Matz Reviewed-by: Anatoly Burakov --- 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