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GET /api/patches/134553/?format=api
{ "id": 134553, "url": "https://patches.dpdk.org/api/patches/134553/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20231123072730.22948-1-sivaprasad.tummala@amd.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": "<20231123072730.22948-1-sivaprasad.tummala@amd.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20231123072730.22948-1-sivaprasad.tummala@amd.com", "date": "2023-11-23T07:27:30", "name": "[v2] eal/x86: add AMD vendor check to choose TSC calibration", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "4fcbc3721f2071af8f85c661bb1769210c929de1", "submitter": { "id": 2510, "url": "https://patches.dpdk.org/api/people/2510/?format=api", "name": "Sivaprasad Tummala", "email": "Sivaprasad.Tummala@amd.com" }, "delegate": { "id": 1, "url": "https://patches.dpdk.org/api/users/1/?format=api", "username": "tmonjalo", "first_name": "Thomas", "last_name": "Monjalon", "email": "thomas@monjalon.net" }, "mbox": "https://patches.dpdk.org/project/dpdk/patch/20231123072730.22948-1-sivaprasad.tummala@amd.com/mbox/", "series": [ { "id": 30370, "url": "https://patches.dpdk.org/api/series/30370/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=30370", "date": "2023-11-23T07:27:30", "name": "[v2] eal/x86: add AMD vendor check to choose TSC calibration", "version": 2, "mbox": "https://patches.dpdk.org/series/30370/mbox/" } ], "comments": "https://patches.dpdk.org/api/patches/134553/comments/", "check": "success", "checks": "https://patches.dpdk.org/api/patches/134553/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 A99D4433A3;\n\tThu, 23 Nov 2023 08:27:51 +0100 (CET)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id CBEB842EFF;\n\tThu, 23 Nov 2023 08:27:50 +0100 (CET)", "from NAM11-DM6-obe.outbound.protection.outlook.com\n (mail-dm6nam11on2063.outbound.protection.outlook.com [40.107.223.63])\n by mails.dpdk.org (Postfix) with ESMTP id 3703D402C2;\n Thu, 23 Nov 2023 08:27:49 +0100 (CET)", "from DM6PR07CA0053.namprd07.prod.outlook.com (2603:10b6:5:74::30) by\n CY5PR12MB6131.namprd12.prod.outlook.com (2603:10b6:930:25::10) with\n Microsoft\n SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id\n 15.20.7025.19; 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s=selector1;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=sij12nQfOrUsuq5GOdcURCH+XHOakYOrPbCjnTemKtM=;\n b=HCYeD2O9NwI/NeljTOumzw9H9eg9HZKKJAvolMlzsVHmktER/HGZYVTwrUrjmA2FX+cva4gVd9HF7kyUOT6iDxCjPxRhXqng7MU9B9MDfEe8hq9qVik90aqYJwXHR2OciEghUXmJFJCsPom7SNhZeLTf53UOW33Gd9+D/h7U0uo=", "X-MS-Exchange-Authentication-Results": "spf=pass (sender IP is 165.204.84.17)\n smtp.mailfrom=amd.com; dkim=none (message not signed)\n header.d=none;dmarc=pass action=none header.from=amd.com;", "Received-SPF": "Pass (protection.outlook.com: domain of amd.com designates\n 165.204.84.17 as permitted sender) receiver=protection.outlook.com;\n client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C", "From": "Sivaprasad Tummala <sivaprasad.tummala@amd.com>", "To": "<bruce.richardson@intel.com>, <konstantin.v.ananyev@yandex.ru>", "CC": "<dev@dpdk.org>, <david.marchand@redhat.com>, <ferruh.yigit@amd.com>,\n <jerin.jacob@caviumnetworks.com>, <stable@dpdk.org>", "Subject": "[PATCH v2] eal/x86: add AMD vendor check to choose TSC calibration", "Date": "Wed, 22 Nov 2023 23:27:30 -0800", "Message-ID": "<20231123072730.22948-1-sivaprasad.tummala@amd.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20231109052820.2129745-1-sivaprasad.tummala@amd.com>", "References": "<20231109052820.2129745-1-sivaprasad.tummala@amd.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-Originating-IP": "[10.180.168.240]", "X-ClientProxiedBy": "SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com\n (10.181.40.145)", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "DS3PEPF000099E2:EE_|CY5PR12MB6131:EE_", "X-MS-Office365-Filtering-Correlation-Id": "e47249e6-8e10-4e9a-75f7-08dbebf5b066", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n aD12xo08VJKhtoRUwyzYxEmdR7Z9ZHlSuBm9z5RLWSb/qwMGcLGfheQZaPgyJ4Xp1OTDu8x3dhdmX2SWfuEr0/RaMkHHJsfILVZHo31bylviF+3j5JAGBiaOWQqILQ1eaCy9HHoGkOYa9urnjYVoXgKSUcMcu9T67igMO/4BIcDdG9cS/0iCattjCkoSfpxqzQHaANFAORcOKvAEXvUncCV5fnz4lPx1NfIEja+9PRHko1P8lnqrku+y/lZ+AmUYr+AkFaLfbqFMMjGi5XOZqrbK0g6aNa4DopBasEHaAQeyzTmVM1i3gl8rasAz1mNRWbuqcpa5MhaL3AfJ8/YmNjTKE0P7vBzkM6CeAIqwVpQLkseoRxYS0XV9CFVskzFoO+EiYkKFv2N1WOsf9imK9fv2N4Wf+84MCLGH1tLp+o2tY3qQu3GxZECad5hYGO3dIgSrovA6Ij13Gdg4JDLpq1Qs42n7f5E6jlX6cLMUrnq097KL3Y5CIpuqnyTAxTUxf6+10LVqMia4IgNMqV24BIfvKZZKJytmJ3J0swP7lGH1ZK8sc8QUfFsO8/oHJ9n5eK/kQnfgFdwdP5g4MEx6U4Is/pBsm+T9A7XfkxYwK8v9Nx0Bk5LzsXUEJndYAv0tIEETESDeku5M+9Aj4J/TKTOLsAEh5fDu2BUqQUCxXZX3VzgiD2UvAfWd3O1U5k0s1W8wPT/T2Z9uIdOZLMLps8Vqpd1qsz7Xe9ykgXCof+X/t1Cxow6Xt6/dUOkySt2HezZtjxc98kU0CYfnJcNvHw==", "X-Forefront-Antispam-Report": "CIP:165.204.84.17; CTRY:US; LANG:en; SCL:1; SRV:;\n IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE;\n SFS:(13230031)(4636009)(346002)(376002)(136003)(39860400002)(396003)(230922051799003)(451199024)(82310400011)(1800799012)(64100799003)(186009)(46966006)(36840700001)(40470700004)(40460700003)(26005)(426003)(1076003)(6666004)(7696005)(83380400001)(2616005)(36860700001)(44832011)(5660300002)(47076005)(4326008)(8936002)(336012)(8676002)(41300700001)(2906002)(478600001)(316002)(16526019)(54906003)(70206006)(110136005)(70586007)(86362001)(82740400003)(36756003)(81166007)(356005)(40480700001)(36900700001);\n DIR:OUT; SFP:1101;", "X-OriginatorOrg": "amd.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "23 Nov 2023 07:27:46.0514 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n e47249e6-8e10-4e9a-75f7-08dbebf5b066", "X-MS-Exchange-CrossTenant-Id": "3dd8961f-e488-4e60-8e11-a82d994e183d", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17];\n Helo=[SATLEXMB04.amd.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n DS3PEPF000099E2.namprd04.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "CY5PR12MB6131", "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": "AMD Epyc processors doesn't support get_tsc_freq_arch().\nThe patch allows graceful return to allow fallback to\nalternate TSC calibration.\n\nFixes: 3dbc565e81a0 (\"timer: honor arch-specific TSC frequency query\")\nCc: jerin.jacob@caviumnetworks.com\nCc: stable@dpdk.org\n\nSigned-off-by: Sivaprasad Tummala <sivaprasad.tummala@amd.com>\n---\n lib/eal/x86/rte_cycles.c | 16 ++++++++++++++++\n 1 file changed, 16 insertions(+)", "diff": "diff --git a/lib/eal/x86/rte_cycles.c b/lib/eal/x86/rte_cycles.c\nindex 69ed59b4f0..f147a5231d 100644\n--- a/lib/eal/x86/rte_cycles.c\n+++ b/lib/eal/x86/rte_cycles.c\n@@ -10,6 +10,10 @@\n #include <cpuid.h>\n #endif\n \n+#define x86_vendor_amd(t1, t2, t3) \\\n+\t((t1 == 0x68747541) && /* htuA */ \\\n+\t (t2 == 0x444d4163) && /* DMAc */ \\\n+\t (t3 == 0x69746e65)) /* itne */\n \n #include \"eal_private.h\"\n \n@@ -110,6 +114,18 @@ get_tsc_freq_arch(void)\n \tuint8_t mult, model;\n \tint32_t ret;\n \n+#ifdef RTE_TOOLCHAIN_MSVC\n+\t__cpuid(cpuinfo, 0);\n+\ta = cpuinfo[0];\n+\tb = cpuinfo[1];\n+\tc = cpuinfo[2];\n+\td = cpuinfo[3];\n+#else\n+\t__cpuid(0, a, b, c, d);\n+#endif\n+\tif (x86_vendor_amd(b, c, d))\n+\t\treturn 0;\n+\n \t/*\n \t * Time Stamp Counter and Nominal Core Crystal Clock\n \t * Information Leaf\n", "prefixes": [ "v2" ] }