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{
    "id": 80335,
    "url": "https://patches.dpdk.org/api/patches/80335/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/20201012081106.10610-2-ndabilpuram@marvell.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": "<20201012081106.10610-2-ndabilpuram@marvell.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20201012081106.10610-2-ndabilpuram@marvell.com",
    "date": "2020-10-12T08:11:05",
    "name": "[1/2] test: add test case to validate VFIO DMA map/unmap",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "92c5d9b73c22373ebd189d8bab791b98186605fb",
    "submitter": {
        "id": 1202,
        "url": "https://patches.dpdk.org/api/people/1202/?format=api",
        "name": "Nithin Dabilpuram",
        "email": "ndabilpuram@marvell.com"
    },
    "delegate": {
        "id": 24651,
        "url": "https://patches.dpdk.org/api/users/24651/?format=api",
        "username": "dmarchand",
        "first_name": "David",
        "last_name": "Marchand",
        "email": "david.marchand@redhat.com"
    },
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/20201012081106.10610-2-ndabilpuram@marvell.com/mbox/",
    "series": [
        {
            "id": 12874,
            "url": "https://patches.dpdk.org/api/series/12874/?format=api",
            "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=12874",
            "date": "2020-10-12T08:11:04",
            "name": "fix issue with partial DMA unmap",
            "version": 1,
            "mbox": "https://patches.dpdk.org/series/12874/mbox/"
        }
    ],
    "comments": "https://patches.dpdk.org/api/patches/80335/comments/",
    "check": "success",
    "checks": "https://patches.dpdk.org/api/patches/80335/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@inbox.dpdk.org",
        "Delivered-To": "patchwork@inbox.dpdk.org",
        "Received": [
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        ],
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        "From": "Nithin Dabilpuram <ndabilpuram@marvell.com>",
        "To": "<anatoly.burakov@intel.com>",
        "CC": "<jerinj@marvell.com>, <dev@dpdk.org>, Nithin Dabilpuram\n <ndabilpuram@marvell.com>",
        "Date": "Mon, 12 Oct 2020 13:41:05 +0530",
        "Message-ID": "<20201012081106.10610-2-ndabilpuram@marvell.com>",
        "X-Mailer": "git-send-email 2.8.4",
        "In-Reply-To": "<20201012081106.10610-1-ndabilpuram@marvell.com>",
        "References": "<20201012081106.10610-1-ndabilpuram@marvell.com>",
        "MIME-Version": "1.0",
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        "Subject": "[dpdk-dev] [PATCH 1/2] test: add test case to validate VFIO DMA\n\tmap/unmap",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
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        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "Add test case in test_memory to test VFIO DMA map/unmap.\n\nSigned-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>\n---\n app/test/test_memory.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 79 insertions(+)",
    "diff": "diff --git a/app/test/test_memory.c b/app/test/test_memory.c\nindex 7d5ae99..1c56455 100644\n--- a/app/test/test_memory.c\n+++ b/app/test/test_memory.c\n@@ -4,11 +4,16 @@\n \n #include <stdio.h>\n #include <stdint.h>\n+#include <string.h>\n+#include <sys/mman.h>\n+#include <unistd.h>\n \n #include <rte_eal.h>\n+#include <rte_errno.h>\n #include <rte_memory.h>\n #include <rte_common.h>\n #include <rte_memzone.h>\n+#include <rte_vfio.h>\n \n #include \"test.h\"\n \n@@ -70,6 +75,71 @@ check_seg_fds(const struct rte_memseg_list *msl, const struct rte_memseg *ms,\n }\n \n static int\n+test_memory_vfio_dma_map(void)\n+{\n+\tuint64_t sz = 2 * sysconf(_SC_PAGESIZE), sz1, sz2;\n+\tuint64_t unmap1, unmap2;\n+\tuint8_t *mem;\n+\tint ret;\n+\n+\t/* Check if vfio is enabled in both kernel and eal */\n+\tret = rte_vfio_is_enabled(\"vfio\");\n+\tif (!ret)\n+\t\treturn 1;\n+\n+\t/* Allocate twice size of page */\n+\tmem = mmap(NULL, sz, PROT_READ | PROT_WRITE,\n+\t\t   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);\n+\tif (mem == MAP_FAILED) {\n+\t\tprintf(\"Failed to allocate memory for external heap\\n\");\n+\t\treturn -1;\n+\t}\n+\n+\t/* Force page allocation */\n+\tmemset(mem, 0, sz);\n+\n+\t/* map the whole region */\n+\tret = rte_vfio_container_dma_map(RTE_VFIO_DEFAULT_CONTAINER_FD,\n+\t\t\t\t\t (uint64_t)mem, (rte_iova_t)mem, sz);\n+\tif (ret) {\n+\t\tprintf(\"Failed to dma map whole region, ret=%d\\n\", ret);\n+\t\tgoto fail;\n+\t}\n+\n+\tunmap1 = (uint64_t)mem + (sz / 2);\n+\tsz1 = sz / 2;\n+\tunmap2 = (uint64_t)mem;\n+\tsz2 = sz / 2;\n+\t/* unmap the partial region */\n+\tret = rte_vfio_container_dma_unmap(RTE_VFIO_DEFAULT_CONTAINER_FD,\n+\t\t\t\t\t   unmap1, (rte_iova_t)unmap1, sz1);\n+\tif (ret) {\n+\t\tif (rte_errno == ENOTSUP) {\n+\t\t\tprintf(\"Partial dma unmap not supported\\n\");\n+\t\t\tunmap2 = (uint64_t)mem;\n+\t\t\tsz2 = sz;\n+\t\t} else {\n+\t\t\tprintf(\"Failed to unmap send half region, ret=%d(%d)\\n\",\n+\t\t\t       ret, rte_errno);\n+\t\t\tgoto fail;\n+\t\t}\n+\t}\n+\n+\t/* unmap the remaining region */\n+\tret = rte_vfio_container_dma_unmap(RTE_VFIO_DEFAULT_CONTAINER_FD,\n+\t\t\t\t\t   unmap2, (rte_iova_t)unmap2, sz2);\n+\tif (ret) {\n+\t\tprintf(\"Failed to unmap remaining region, ret=%d(%d)\\n\", ret,\n+\t\t       rte_errno);\n+\t\tgoto fail;\n+\t}\n+\n+fail:\n+\tmunmap(mem, sz);\n+\treturn ret;\n+}\n+\n+static int\n test_memory(void)\n {\n \tuint64_t s;\n@@ -101,6 +171,15 @@ test_memory(void)\n \t\treturn -1;\n \t}\n \n+\t/* test for vfio dma map/unmap */\n+\tret = test_memory_vfio_dma_map();\n+\tif (ret == 1) {\n+\t\tprintf(\"VFIO dma map/unmap unsupported\\n\");\n+\t} else if (ret < 0) {\n+\t\tprintf(\"Error vfio dma map/unmap, ret=%d\\n\", ret);\n+\t\treturn -1;\n+\t}\n+\n \treturn 0;\n }\n \n",
    "prefixes": [
        "1/2"
    ]
}