From patchwork Tue Jan 23 13:15:58 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Rybchenko X-Patchwork-Id: 34330 Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 10CEA1B1C2; Tue, 23 Jan 2018 14:17:03 +0100 (CET) Received: from dispatch1-us1.ppe-hosted.com (dispatch1-us1.ppe-hosted.com [148.163.129.52]) by dpdk.org (Postfix) with ESMTP id 4E65B1B017 for ; Tue, 23 Jan 2018 14:16:53 +0100 (CET) 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 6B147BC005E; Tue, 23 Jan 2018 13:16:52 +0000 (UTC) Received: from ocex03.SolarFlarecom.com (10.20.40.36) by ocex03.SolarFlarecom.com (10.20.40.36) with Microsoft SMTP Server (TLS) id 15.0.1044.25; Tue, 23 Jan 2018 05:16:49 -0800 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; Tue, 23 Jan 2018 05:16:49 -0800 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 w0NDGlCY006400; Tue, 23 Jan 2018 13:16:48 GMT 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 w0NDGlec010689; Tue, 23 Jan 2018 13:16:47 GMT From: Andrew Rybchenko To: CC: Olivier Matz , Santosh Shukla , Jerin Jacob Date: Tue, 23 Jan 2018 13:15:58 +0000 Message-ID: <1516713372-10572-4-git-send-email-arybchenko@solarflare.com> X-Mailer: git-send-email 1.8.2.3 In-Reply-To: <1516713372-10572-1-git-send-email-arybchenko@solarflare.com> References: <1511539591-20966-1-git-send-email-arybchenko@solarflare.com> <1516713372-10572-1-git-send-email-arybchenko@solarflare.com> MIME-Version: 1.0 X-MDID: 1516713413-NLH7rDg3T5d1 Subject: [dpdk-dev] [RFC v2 03/17] mempool/octeontx: add callback to calculate memory 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" The driver requires one and only one physically contiguous memory chunk for all objects. Signed-off-by: Andrew Rybchenko --- drivers/mempool/octeontx/rte_mempool_octeontx.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/mempool/octeontx/rte_mempool_octeontx.c b/drivers/mempool/octeontx/rte_mempool_octeontx.c index d143d05..4ec5efe 100644 --- a/drivers/mempool/octeontx/rte_mempool_octeontx.c +++ b/drivers/mempool/octeontx/rte_mempool_octeontx.c @@ -136,6 +136,30 @@ octeontx_fpavf_get_capabilities(const struct rte_mempool *mp, return 0; } +static ssize_t +octeontx_fpavf_calc_mem_size(const struct rte_mempool *mp, + uint32_t obj_num, uint32_t pg_shift, + size_t *min_chunk_size, size_t *align) +{ + ssize_t mem_size; + + /* + * Simply need space for one more object to be able to + * fullfil alignment requirements. + */ + mem_size = rte_mempool_calc_mem_size_def(mp, obj_num + 1, pg_shift, + min_chunk_size, align); + if (mem_size >= 0) { + /* + * The whole memory area containing the objects must be + * physically contiguous. + */ + *min_chunk_size = mem_size; + } + + return mem_size; +} + static int octeontx_fpavf_register_memory_area(const struct rte_mempool *mp, char *vaddr, rte_iova_t paddr, size_t len) @@ -159,6 +183,7 @@ static struct rte_mempool_ops octeontx_fpavf_ops = { .get_count = octeontx_fpavf_get_count, .get_capabilities = octeontx_fpavf_get_capabilities, .register_memory_area = octeontx_fpavf_register_memory_area, + .calc_mem_size = octeontx_fpavf_calc_mem_size, }; MEMPOOL_REGISTER_OPS(octeontx_fpavf_ops);