From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 41A945B16 for ; Tue, 27 Feb 2018 10:36:00 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Feb 2018 01:35:59 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.47,400,1515484800"; d="scan'208";a="37774332" Received: from dpdk51.sh.intel.com ([10.67.110.184]) by orsmga002.jf.intel.com with ESMTP; 27 Feb 2018 01:35:58 -0800 From: Qi Zhang To: dev@dpdk.org Cc: magnus.karlsson@intel.com, bjorn.topel@intel.com, Qi Zhang Date: Tue, 27 Feb 2018 17:35:50 +0800 Message-Id: <20180227093554.23951-4-qi.z.zhang@intel.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20180227093554.23951-1-qi.z.zhang@intel.com> References: <20180227093554.23951-1-qi.z.zhang@intel.com> Subject: [dpdk-dev] [RFC 3/7] lib/mempool: allow page size aligned mempool 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: , X-List-Received-Date: Tue, 27 Feb 2018 09:36:00 -0000 Allow create a mempool with page size aligned base address. Signed-off-by: Qi Zhang --- lib/librte_mempool/rte_mempool.c | 2 ++ lib/librte_mempool/rte_mempool.h | 1 + 2 files changed, 3 insertions(+) diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c index 54f7f4ba4..f8d4814ad 100644 --- a/lib/librte_mempool/rte_mempool.c +++ b/lib/librte_mempool/rte_mempool.c @@ -567,6 +567,8 @@ rte_mempool_populate_default(struct rte_mempool *mp) pg_shift = 0; /* not needed, zone is physically contiguous */ pg_sz = 0; align = RTE_CACHE_LINE_SIZE; + if (mp->flags & MEMPOOL_F_PAGE_ALIGN) + align = getpagesize(); } else { pg_sz = getpagesize(); pg_shift = rte_bsf32(pg_sz); diff --git a/lib/librte_mempool/rte_mempool.h b/lib/librte_mempool/rte_mempool.h index 8b1b7f7ed..774ab0f66 100644 --- a/lib/librte_mempool/rte_mempool.h +++ b/lib/librte_mempool/rte_mempool.h @@ -245,6 +245,7 @@ struct rte_mempool { #define MEMPOOL_F_SC_GET 0x0008 /**< Default get is "single-consumer".*/ #define MEMPOOL_F_POOL_CREATED 0x0010 /**< Internal: pool is created. */ #define MEMPOOL_F_NO_PHYS_CONTIG 0x0020 /**< Don't need physically contiguous objs. */ +#define MEMPOOL_F_PAGE_ALIGN 0x0040 /**< Base address is page aligned. */ /** * This capability flag is advertised by a mempool handler, if the whole * memory area containing the objects must be physically contiguous. -- 2.13.6