From mboxrd@z Thu Jan 1 00:00:00 1970 From: Qi Zhang Subject: [RFC v3 3/6] lib/mempool: allow page size aligned mempool Date: Thu, 16 Aug 2018 22:43:18 +0800 Message-ID: <20180816144321.17719-4-qi.z.zhang@intel.com> References: <20180816144321.17719-1-qi.z.zhang@intel.com> Cc: magnus.karlsson@intel.com, bjorn.topel@intel.com, jingjing.wu@intel.com, xiaoyun.li@intel.com, ferruh.yigit@intel.com, Qi Zhang To: dev@dpdk.org Return-path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 9D4484C88 for ; Thu, 16 Aug 2018 16:42:51 +0200 (CEST) In-Reply-To: <20180816144321.17719-1-qi.z.zhang@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Allow create a mempool with page size aligned base address. Signed-off-by: Qi Zhang --- lib/librte_mempool/rte_mempool.c | 3 +++ lib/librte_mempool/rte_mempool.h | 1 + 2 files changed, 4 insertions(+) diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c index 03e6b5f73..61f7764c5 100644 --- a/lib/librte_mempool/rte_mempool.c +++ b/lib/librte_mempool/rte_mempool.c @@ -508,6 +508,9 @@ rte_mempool_populate_default(struct rte_mempool *mp) if (try_contig) flags |= RTE_MEMZONE_IOVA_CONTIG; + if (mp->flags & MEMPOOL_F_PAGE_ALIGN) + align = getpagesize(); + mz = rte_memzone_reserve_aligned(mz_name, mem_size, mp->socket_id, flags, align); diff --git a/lib/librte_mempool/rte_mempool.h b/lib/librte_mempool/rte_mempool.h index 7c9cd9a2f..75553b36f 100644 --- a/lib/librte_mempool/rte_mempool.h +++ b/lib/librte_mempool/rte_mempool.h @@ -264,6 +264,7 @@ struct rte_mempool { #define MEMPOOL_F_POOL_CREATED 0x0010 /**< Internal: pool is created. */ #define MEMPOOL_F_NO_IOVA_CONTIG 0x0020 /**< Don't need IOVA contiguous objs. */ #define MEMPOOL_F_NO_PHYS_CONTIG MEMPOOL_F_NO_IOVA_CONTIG /* deprecated */ +#define MEMPOOL_F_PAGE_ALIGN 0x0040 /**< Chunk's base address is page aligned */ /** * @internal When debug is enabled, store some statistics. -- 2.13.6