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GET /api/patches/32474/?format=api
{ "id": 32474, "url": "https://patches.dpdk.org/api/patches/32474/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/4d6dbd867adc051a3cf444d365c2aae604821f77.1513681966.git.anatoly.burakov@intel.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<4d6dbd867adc051a3cf444d365c2aae604821f77.1513681966.git.anatoly.burakov@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/4d6dbd867adc051a3cf444d365c2aae604821f77.1513681966.git.anatoly.burakov@intel.com", "date": "2017-12-19T11:14:50", "name": "[dpdk-dev,RFC,v2,23/23] eal: map/unmap memory with VFIO when alloc/free pages", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "cd7af49c01817a7b85ce9920c4aa9c0b948ecac9", "submitter": { "id": 4, "url": "https://patches.dpdk.org/api/people/4/?format=api", "name": "Anatoly Burakov", "email": "anatoly.burakov@intel.com" }, "delegate": null, "mbox": "https://patches.dpdk.org/project/dpdk/patch/4d6dbd867adc051a3cf444d365c2aae604821f77.1513681966.git.anatoly.burakov@intel.com/mbox/", "series": [], "comments": "https://patches.dpdk.org/api/patches/32474/comments/", "check": "fail", "checks": "https://patches.dpdk.org/api/patches/32474/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 4D9721B228;\n\tTue, 19 Dec 2017 12:15:34 +0100 (CET)", "from mga04.intel.com (mga04.intel.com [192.55.52.120])\n\tby dpdk.org (Postfix) with ESMTP id 77E221D7\n\tfor <dev@dpdk.org>; Tue, 19 Dec 2017 12:14:57 +0100 (CET)", "from orsmga006.jf.intel.com ([10.7.209.51])\n\tby fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t19 Dec 2017 03:14:56 -0800", "from irvmail001.ir.intel.com ([163.33.26.43])\n\tby orsmga006.jf.intel.com with ESMTP; 19 Dec 2017 03:14:54 -0800", "from sivswdev01.ir.intel.com (sivswdev01.ir.intel.com\n\t[10.237.217.45])\n\tby irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id\n\tvBJBEr7c003157; Tue, 19 Dec 2017 11:14:53 GMT", "from sivswdev01.ir.intel.com (localhost [127.0.0.1])\n\tby sivswdev01.ir.intel.com with ESMTP id vBJBErJY010348;\n\tTue, 19 Dec 2017 11:14:53 GMT", "(from aburakov@localhost)\n\tby sivswdev01.ir.intel.com with LOCAL id vBJBErCp010344;\n\tTue, 19 Dec 2017 11:14:53 GMT" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.45,426,1508828400\"; d=\"scan'208\";a=\"4054829\"", "From": "Anatoly Burakov <anatoly.burakov@intel.com>", "To": "dev@dpdk.org", "Cc": "andras.kovacs@ericsson.com, laszlo.vadkeri@ericsson.com,\n\tkeith.wiles@intel.com, benjamin.walker@intel.com,\n\tbruce.richardson@intel.com, thomas@monjalon.net", "Date": "Tue, 19 Dec 2017 11:14:50 +0000", "Message-Id": "<4d6dbd867adc051a3cf444d365c2aae604821f77.1513681966.git.anatoly.burakov@intel.com>", "X-Mailer": "git-send-email 1.7.0.7", "In-Reply-To": [ "<cover.1513681966.git.anatoly.burakov@intel.com>", "<cover.1513681966.git.anatoly.burakov@intel.com>" ], "References": [ "<cover.1513681966.git.anatoly.burakov@intel.com>", "<cover.1513681966.git.anatoly.burakov@intel.com>" ], "Subject": "[dpdk-dev] [RFC v2 23/23] eal: map/unmap memory with VFIO when\n\talloc/free pages", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://dpdk.org/ml/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>\n---\n lib/librte_eal/linuxapp/eal/eal_memalloc.c | 11 +++++++++++\n 1 file changed, 11 insertions(+)", "diff": "diff --git a/lib/librte_eal/linuxapp/eal/eal_memalloc.c b/lib/librte_eal/linuxapp/eal/eal_memalloc.c\nindex 13172a0..8b3f219 100755\n--- a/lib/librte_eal/linuxapp/eal/eal_memalloc.c\n+++ b/lib/librte_eal/linuxapp/eal/eal_memalloc.c\n@@ -61,6 +61,7 @@\n #include <rte_eal_memconfig.h>\n #include <rte_eal.h>\n #include <rte_memory.h>\n+#include <rte_iommu.h>\n \n #include \"eal_filesystem.h\"\n #include \"eal_internal_cfg.h\"\n@@ -259,6 +260,11 @@ alloc_page(struct rte_memseg *ms, void *addr, uint64_t size, int socket_id,\n \tms->iova = iova;\n \tms->socket_id = socket_id;\n \n+\t/* map the segment so that VFIO has access to it */\n+\tif (rte_iommu_dma_map(ms->addr_64, iova, size)) {\n+\t\tRTE_LOG(DEBUG, EAL, \"Cannot register segment with VFIO\\n\");\n+\t}\n+\n \tgoto out;\n \n mapped:\n@@ -295,6 +301,11 @@ free_page(struct rte_memseg *ms, struct hugepage_info *hi, unsigned list_idx,\n \t\t\t\tlist_idx * RTE_MAX_MEMSEG_PER_LIST + seg_idx);\n \t}\n \n+\t/* unmap the segment from VFIO */\n+\tif (rte_iommu_dma_unmap(ms->addr_64, ms->iova, ms->len)) {\n+\t\tRTE_LOG(DEBUG, EAL, \"Cannot unregister segment with VFIO\\n\");\n+\t}\n+\n \tmunmap(ms->addr, ms->hugepage_sz);\n \n \t// TODO: race condition?\n", "prefixes": [ "dpdk-dev", "RFC", "v2", "23/23" ] }