From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dispatch1-us1.ppe-hosted.com (dispatch1-us1.ppe-hosted.com [148.163.129.52]) by dpdk.org (Postfix) with ESMTP id 5209B5F27 for ; Mon, 26 Mar 2018 18:10:11 +0200 (CEST) X-Virus-Scanned: Proofpoint Essentials engine Received: from webmail.solarflare.com (webmail.solarflare.com [12.187.104.26]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1-us4.ppe-hosted.com (Proofpoint Essentials ESMTP Server) with ESMTPS id 1B091BC0081; Mon, 26 Mar 2018 16:10:10 +0000 (UTC) Received: from sfocexch01r.SolarFlarecom.com (10.20.40.34) by ocex03.SolarFlarecom.com (10.20.40.36) with Microsoft SMTP Server (TLS) id 15.0.1044.25; Mon, 26 Mar 2018 09:10:07 -0700 Received: from ocex03.SolarFlarecom.com (10.20.40.36) by sfocexch01r.SolarFlarecom.com (10.20.40.34) with Microsoft SMTP Server (TLS) id 15.0.1044.25; Mon, 26 Mar 2018 09:10:06 -0700 Received: from opal.uk.solarflarecom.com (10.17.10.1) by ocex03.SolarFlarecom.com (10.20.40.36) with Microsoft SMTP Server (TLS) id 15.0.1044.25 via Frontend Transport; Mon, 26 Mar 2018 09:10:05 -0700 Received: from uklogin.uk.solarflarecom.com (uklogin.uk.solarflarecom.com [10.17.10.10]) by opal.uk.solarflarecom.com (8.13.8/8.13.8) with ESMTP id w2QGA4vV003638; Mon, 26 Mar 2018 17:10:04 +0100 Received: from uklogin.uk.solarflarecom.com (localhost.localdomain [127.0.0.1]) by uklogin.uk.solarflarecom.com (8.13.8/8.13.8) with ESMTP id w2QGA4Z3024909; Mon, 26 Mar 2018 17:10:04 +0100 From: Andrew Rybchenko To: CC: Olivier MATZ , "Artem V. Andreev" Date: Mon, 26 Mar 2018 17:09:43 +0100 Message-ID: <1522080591-24705-4-git-send-email-arybchenko@solarflare.com> X-Mailer: git-send-email 1.8.2.3 In-Reply-To: <1522080591-24705-1-git-send-email-arybchenko@solarflare.com> References: <1516713372-10572-1-git-send-email-arybchenko@solarflare.com> <1522080591-24705-1-git-send-email-arybchenko@solarflare.com> MIME-Version: 1.0 Content-Type: text/plain X-MDID: 1522080610-9jZh3XiIL2T6 Subject: [dpdk-dev] [PATCH v3 03/11] mempool: ensure the mempool is initialized before populating 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: Mon, 26 Mar 2018 16:10:12 -0000 From: "Artem V. Andreev" Callback to calculate required memory area size may require mempool driver data to be already allocated and initialized. Signed-off-by: Artem V. Andreev Signed-off-by: Andrew Rybchenko --- v2 -> v3: - none v1 -> v2: - add init check to mempool_ops_alloc_once() - move ealier in the patch series since it is required when driver ops are called and it is better to have it before new ops are added RFCv2 -> v1: - rename helper function as mempool_ops_alloc_once() lib/librte_mempool/rte_mempool.c | 33 ++++++++++++++++++++++++++------- 1 file changed, 26 insertions(+), 7 deletions(-) diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c index 6ffa795..d8e3720 100644 --- a/lib/librte_mempool/rte_mempool.c +++ b/lib/librte_mempool/rte_mempool.c @@ -323,6 +323,21 @@ rte_mempool_free_memchunks(struct rte_mempool *mp) } } +static int +mempool_ops_alloc_once(struct rte_mempool *mp) +{ + int ret; + + /* create the internal ring if not already done */ + if ((mp->flags & MEMPOOL_F_POOL_CREATED) == 0) { + ret = rte_mempool_ops_alloc(mp); + if (ret != 0) + return ret; + mp->flags |= MEMPOOL_F_POOL_CREATED; + } + return 0; +} + /* Add objects in the pool, using a physically contiguous memory * zone. Return the number of objects added, or a negative value * on error. @@ -339,13 +354,9 @@ rte_mempool_populate_iova(struct rte_mempool *mp, char *vaddr, struct rte_mempool_memhdr *memhdr; int ret; - /* create the internal ring if not already done */ - if ((mp->flags & MEMPOOL_F_POOL_CREATED) == 0) { - ret = rte_mempool_ops_alloc(mp); - if (ret != 0) - return ret; - mp->flags |= MEMPOOL_F_POOL_CREATED; - } + ret = mempool_ops_alloc_once(mp); + if (ret != 0) + return ret; /* Notify memory area to mempool */ ret = rte_mempool_ops_register_memory_area(mp, vaddr, iova, len); @@ -556,6 +567,10 @@ rte_mempool_populate_default(struct rte_mempool *mp) unsigned int mp_flags; int ret; + ret = mempool_ops_alloc_once(mp); + if (ret != 0) + return ret; + /* mempool must not be populated */ if (mp->nb_mem_chunks != 0) return -EEXIST; @@ -667,6 +682,10 @@ rte_mempool_populate_anon(struct rte_mempool *mp) return 0; } + ret = mempool_ops_alloc_once(mp); + if (ret != 0) + return ret; + /* get chunk of virtually continuous memory */ size = get_anon_size(mp); addr = mmap(NULL, size, PROT_READ | PROT_WRITE, -- 2.7.4