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GET /api/patches/134254/?format=api
{ "id": 134254, "url": "http://patchwork.dpdk.org/api/patches/134254/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/20231114102300.409158-1-mingjinx.ye@intel.com/", "project": { "id": 1, "url": "http://patchwork.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": "<20231114102300.409158-1-mingjinx.ye@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20231114102300.409158-1-mingjinx.ye@intel.com", "date": "2023-11-14T10:23:00", "name": "vfio: add get device info API", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "c3b6ac45d974351fd1ab93a83fa7ef65e592f034", "submitter": { "id": 2862, "url": "http://patchwork.dpdk.org/api/people/2862/?format=api", "name": "Mingjin Ye", "email": "mingjinx.ye@intel.com" }, "delegate": { "id": 1, "url": "http://patchwork.dpdk.org/api/users/1/?format=api", "username": "tmonjalo", "first_name": "Thomas", "last_name": "Monjalon", "email": "thomas@monjalon.net" }, "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/20231114102300.409158-1-mingjinx.ye@intel.com/mbox/", "series": [ { "id": 30287, "url": "http://patchwork.dpdk.org/api/series/30287/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=30287", "date": "2023-11-14T10:23:00", "name": "vfio: add get device info API", "version": 1, "mbox": "http://patchwork.dpdk.org/series/30287/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/patches/134254/comments/", "check": "fail", "checks": "http://patchwork.dpdk.org/api/patches/134254/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 23D3D43326;\n\tTue, 14 Nov 2023 11:38:14 +0100 (CET)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 0C0434027D;\n\tTue, 14 Nov 2023 11:38:14 +0100 (CET)", "from mgamail.intel.com (mgamail.intel.com [192.55.52.151])\n by mails.dpdk.org (Postfix) with ESMTP id A037F4027B;\n Tue, 14 Nov 2023 11:38:12 +0100 (CET)", "from fmsmga007.fm.intel.com ([10.253.24.52])\n by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 14 Nov 2023 02:38:11 -0800", "from unknown (HELO localhost.localdomain) ([10.239.252.253])\n by fmsmga007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 14 Nov 2023 02:38:09 -0800" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple;\n d=intel.com; i=@intel.com; q=dns/txt; s=Intel;\n t=1699958292; x=1731494292;\n h=from:to:cc:subject:date:message-id:mime-version:\n content-transfer-encoding;\n bh=oFsHjZJuusbFVtD09ho7788IdxmEY5gAqTJAh9OzzLM=;\n b=CYceW8IGk8NLdy9Zih5d1FRIMBYglf9uWRqEDZ1CH84x2EA4voFKBvVU\n bGCm9eyXJsOpMFo5O92MLNZHDxuguQwQYHlwTW+BAWfeemouIKx0ihtwB\n 68qMeOptBYeEpgKedYhtJfyb+9b4Ly9mwIEDqoRPCEMhWgyWQIOvDpPWv\n LuIgytsTyO5yD3hMT0IYx/IlC2V84M9uXmN9zGDXFfVbS8S3l0yvowwmp\n eEAFxcFhBHwnhhhnSmk1ZO/dxbtVaj8pE+qe6rld+SLgWR/N/vJwYvVTP\n MQUoMJs8gaF/z1HZ+XPFvnOvkIluyqnnJawcn5DvgeA4tjRl1jO0BDpI0 Q==;", "X-IronPort-AV": [ "E=McAfee;i=\"6600,9927,10893\"; a=\"370826386\"", "E=Sophos;i=\"6.03,301,1694761200\"; d=\"scan'208\";a=\"370826386\"", "E=McAfee;i=\"6600,9927,10893\"; a=\"768218233\"", "E=Sophos;i=\"6.03,301,1694761200\"; d=\"scan'208\";a=\"768218233\"" ], "X-ExtLoop1": "1", "From": "Mingjin Ye <mingjinx.ye@intel.com>", "To": "dev@dpdk.org", "Cc": "qiming.yang@intel.com, Mingjin Ye <mingjinx.ye@intel.com>,\n stable@dpdk.org,\n Anatoly Burakov <anatoly.burakov@intel.com>", "Subject": "[PATCH] vfio: add get device info API", "Date": "Tue, 14 Nov 2023 10:23:00 +0000", "Message-Id": "<20231114102300.409158-1-mingjinx.ye@intel.com>", "X-Mailer": "git-send-email 2.25.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org" }, "content": "This patch adds an API to support getting device information.\n\nThe driver can use the \"rte_vfio_get_device_info\" helper to get\ndevice information from EAL.\n\nCc: stable@dpdk.org\n\nSigned-off-by: Mingjin Ye <mingjinx.ye@intel.com>\n---\n lib/eal/include/rte_vfio.h | 26 ++++++++++++++++++++++++++\n lib/eal/linux/eal_vfio.c | 19 +++++++++++++++++++\n lib/eal/version.map | 3 +++\n 3 files changed, 48 insertions(+)", "diff": "diff --git a/lib/eal/include/rte_vfio.h b/lib/eal/include/rte_vfio.h\nindex 3487c4f2a2..b3f55963e3 100644\n--- a/lib/eal/include/rte_vfio.h\n+++ b/lib/eal/include/rte_vfio.h\n@@ -212,6 +212,32 @@ int\n rte_vfio_get_group_num(const char *sysfs_base,\n \t\t const char *dev_addr, int *iommu_group_num);\n \n+/**\n+ * Get device information\n+ *\n+ * This function is only relevant to linux and will return\n+ * an error on BSD.\n+ *\n+ * @param sysfs_base\n+ * sysfs path prefix.\n+ *\n+ * @param dev_addr\n+ * device location.\n+ *\n+ * @param vfio_dev_fd\n+ * VFIO fd.\n+ *\n+ * @param device_info\n+ * Device information.\n+ *\n+ * @return\n+ * 0 on success.\n+ * <0 on failure.\n+ */\n+int\n+rte_vfio_get_device_info(const char *sysfs_base, const char *dev_addr,\n+\t\t\tint *vfio_dev_fd, struct vfio_device_info *device_info);\n+\n /**\n * Open a new VFIO container fd\n *\ndiff --git a/lib/eal/linux/eal_vfio.c b/lib/eal/linux/eal_vfio.c\nindex ad3c1654b2..5810d9fcd7 100644\n--- a/lib/eal/linux/eal_vfio.c\n+++ b/lib/eal/linux/eal_vfio.c\n@@ -1222,6 +1222,25 @@ vfio_set_iommu_type(int vfio_container_fd)\n \treturn NULL;\n }\n \n+int\n+rte_vfio_get_device_info(const char *sysfs_base, const char *dev_addr,\n+\t\t\tint *vfio_dev_fd, struct vfio_device_info *device_info)\n+{\n+\tif (!device_info || *vfio_dev_fd < 0)\n+\t\treturn -1;\n+\n+\tif (*vfio_dev_fd == 0) {\n+\t\tif (rte_vfio_setup_device(sysfs_base, dev_addr,\n+\t\t\t\tvfio_dev_fd, device_info))\n+\t\t\treturn -1;\n+\t} else {\n+\t\tif (ioctl(*vfio_dev_fd, VFIO_DEVICE_GET_INFO, &device_info))\n+\t\t\treturn -1;\n+\t}\n+\n+\treturn 0;\n+}\n+\n int\n vfio_has_supported_extensions(int vfio_container_fd)\n {\ndiff --git a/lib/eal/version.map b/lib/eal/version.map\nindex e00a844805..8a211aaefd 100644\n--- a/lib/eal/version.map\n+++ b/lib/eal/version.map\n@@ -413,6 +413,9 @@ EXPERIMENTAL {\n \t# added in 23.07\n \trte_memzone_max_get;\n \trte_memzone_max_set;\n+\n+\t# added in 23.11\n+\trte_vfio_get_device_info; # WINDOWS_NO_EXPORT\n };\n \n INTERNAL {\n", "prefixes": [] }