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Thu, 27 Mar 2025 12:58:52 +0000 Message-ID: Date: Thu, 27 Mar 2025 14:58:42 +0200 User-Agent: Mozilla Thunderbird Subject: Re: [Intel-wired-lan] [PATCH iwl-next v10 07/14] igc: optimize TX packet buffer utilization for TSN mode To: Faizal Rahim , Tony Nguyen , Przemek Kitszel , Andrew Lunn , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Alexandre Torgue , Simon Horman , Vladimir Oltean , Russell King , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Furong Xu <0x1207@gmail.com>, Choong Yong Liang , Russell King , Hariprasad Kelam , Xiaolei Wang , "Suraj Jaiswal" , Kory Maincent , Gal Pressman , Jesper Nilsson , , , , , , , Chwee-Lin Choong , Vinicius Costa Gomes , Kunihiko Hayashi , Serge Semin References: <20250318030742.2567080-1-faizal.abdul.rahim@linux.intel.com> <20250318030742.2567080-8-faizal.abdul.rahim@linux.intel.com> Content-Language: en-US From: Mor Bar-Gabay In-Reply-To: <20250318030742.2567080-8-faizal.abdul.rahim@linux.intel.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: TL2P290CA0012.ISRP290.PROD.OUTLOOK.COM (2603:1096:950:2::16) To CY5PR11MB6307.namprd11.prod.outlook.com (2603:10b6:930:21::20) Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY5PR11MB6307:EE_|DS0PR11MB8719:EE_ X-MS-Office365-Filtering-Correlation-Id: 85be808f-b2fb-4e22-f69f-08dd6d2f2008 X-LD-Processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|376014|7416014|921020|7053199007; 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The total packet buffer size (RX + TX) is 64KB, with > a maximum of 34KB for either RX or TX. Split the buffer evenly, > allocating 32KB to each. > > For TX, assign 7KB to each of the four TX packet buffers (total 28KB) > and reserve 4KB for BMC. > > References: > I225/I226 SW User Manual Section 4.7.9, Section 8.3.2 > > Co-developed-by: Vinicius Costa Gomes > Signed-off-by: Vinicius Costa Gomes > Signed-off-by: Faizal Rahim > --- > drivers/net/ethernet/intel/igc/igc_defines.h | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > Tested-by: Mor Bar-Gabay