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Wed, 5 Aug 2026 14:24:35 +0000 Message-ID: <87c1d160-5e8f-4f23-8c85-eba7949f5730@intel.com> Date: Wed, 5 Aug 2026 16:21:56 +0200 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH iwl-next v5 2/5] libeth: handle creating pools with unreadable buffers To: Pavel Begunkov CC: , Tony Nguyen , Przemek Kitszel , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , "Paolo Abeni" , Simon Horman , Kohei Enju , Jacob Keller , "Aleksandr Loktionov" , , , References: <20260505152923.1040589-1-aleksander.lobakin@intel.com> <20260505152923.1040589-3-aleksander.lobakin@intel.com> <7dfde9fc-63d0-4ff9-8c59-63af279cf85e@gmail.com> From: Alexander Lobakin Content-Language: en-US In-Reply-To: <7dfde9fc-63d0-4ff9-8c59-63af279cf85e@gmail.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: WA1PEPF00005B90.POLP291.PROD.OUTLOOK.COM (2603:10a6:1d8::627) To DS0PR11MB8718.namprd11.prod.outlook.com (2603:10b6:8:1b9::20) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS0PR11MB8718:EE_|IA1PR11MB7855:EE_ X-MS-Office365-Filtering-Correlation-Id: 41edecb7-e88a-4899-4656-08def2fd462d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|23010399003|7416014|366016|6133799003|22082099003|18002099003|11063799006|56012099006|10067099003|4143699003; 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Memory providers >> manage buffers on their own and expect 1:1 buffer / HW Rx descriptor >> association. > > Maybe I'm misreading it, but providers don't expect that. It's > fine to use page_pool_alloc_frag_netmem() and friends, just like > bnxt and other drivers do. net_iovs are refcounted in the same > way as normal pages. Hope it helps. Thanks, I'll double check. I could've misunderstood and done that due to the unrelated problem which was fixed recently in the core. Olek