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Thu, 1 May 2025 07:44:22 +0000 Date: Thu, 1 May 2025 08:44:17 +0100 From: Bruce Richardson <bruce.richardson@intel.com> To: Gregory Etelson <getelson@nvidia.com> CC: "Van Haaren, Harry" <harry.van.haaren@intel.com>, "dev@dpdk.org" <dev@dpdk.org>, "owen.hilyard@unh.edu" <owen.hilyard@unh.edu> Subject: Re: [PATCH] rust: RFC/demo of safe API for Dpdk Eal, Eth and Rxq Message-ID: <aBMmUZ2RDSXQOHXg@bricha3-mobl1.ger.corp.intel.com> References: <20250417151039.186448-1-harry.van.haaren@intel.com> <9c4a970a-576c-7b0b-7685-791c4dd2689d@nvidia.com> <PH8PR11MB6803458E6348B4D167C47C91D7BF2@PH8PR11MB6803.namprd11.prod.outlook.com> <IA1PR12MB63308A2F69036E3ACCC605D0A5B92@IA1PR12MB6330.namprd12.prod.outlook.com> <PH8PR11MB680363E200616CBB39DDDCB6D7852@PH8PR11MB6803.namprd11.prod.outlook.com> <c5387a8c-b560-3fde-3453-c2478d8e6969@nvidia.com> <IA1PR12MB6330872DB96BB9D83EF7EFF2A5832@IA1PR12MB6330.namprd12.prod.outlook.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <IA1PR12MB6330872DB96BB9D83EF7EFF2A5832@IA1PR12MB6330.namprd12.prod.outlook.com> X-ClientProxiedBy: DUZPR01CA0280.eurprd01.prod.exchangelabs.com (2603:10a6:10:4b9::26) To DS0PR11MB7309.namprd11.prod.outlook.com (2603:10b6:8:13e::17) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS0PR11MB7309:EE_|PH7PR11MB6005:EE_ X-MS-Office365-Filtering-Correlation-Id: a2739087-5b42-4869-b6d1-08dd8883fce0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|376014|1800799024; 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However, IMHO using EAL for thread management in rust is the wrong interface to expose. Instead, I believe we should be encouraging native rust thread management, and not exposing any DPDK threading APIs except those necessary to have rust threads work with DPDK, i.e. with an lcore ID. Many years ago when DPDK started, and in the C world, having DPDK as a runtime environment made sense, but times have changed and for Rust, there is a whole ecosystem out there already that we need to "play nice with", so having Rust (not DPDK) do all thread management is the way to go (again IMHO). /Bruce