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Thu, 5 Nov 2026 18:27:51 +0000 Message-ID: <052ebb43-40af-4b34-a2eb-9e04822f4526@intel.com> Date: Thu, 5 Nov 2026 10:27:50 -0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH iwl-next v4 15/15] ice: support up to 256 VF queues To: Przemek Kitszel , Petr Oros CC: , Jakub Kicinski , Jiri Pirko , , Simon Horman , Michal Schmidt , Tony Nguyen , Michal Swiatkowski , Aleksandr Loktionov , Brett Creeley , "Ahmed Zaki" , Mateusz Polchlopek References: <20261103141646.303620-1-przemyslaw.kitszel@intel.com> <20261103141646.303620-16-przemyslaw.kitszel@intel.com> <20261105122558.1701877-1-poros@redhat.com> From: Jacob Keller Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MW4PR04CA0285.namprd04.prod.outlook.com (2603:10b6:303:89::20) To DS0PR11MB7381.namprd11.prod.outlook.com (2603:10b6:8:134::14) X-Mailing-List: netdev@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS0PR11MB7381:EE_|LV0PR11MB945601:EE_ X-MS-Office365-Filtering-Correlation-Id: 4875c83f-0539-465c-829c-08df3b6a8040 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|23010399003|366016|376014|1800799024|11063799006|261022105027099003|56012099006|4143699003|261026140227099003|261028144727099003|261026121527099003|10067099003|22082099003|18002099003; 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To enable more than usual 16, user >>> needs to assign GLOBAL LUT (devlink resource named "rss/lut_512") for 64 >>> queues or PF LUT (name "rss/lut_2048") for maximum of 256 queues. >> >> I ran the whole v4 on an E810-C for SFP (4 ports, 10G DAC between two >> of them, FW 8.1.1 with mgmt API 1.7.11, DDP COMMS 1.3.55.0) on top of >> net-next 7b6ab4dbc156 with lockdep, and again with KASAN. The >> documented flows work as described: PF and VF LUT assignment, 64 and >> 256 queues on a VF (also with 65 MSI-X), VF FLR, iavf unbind and bind, >> PFR, CORER and GLOBR restoring the default assignment, the ADQ >> exclusion in both directions, 16 VFs taking all 16 global LUTs, and >> teardown with LUTs still assigned. The two problems below come with >> this patch. > > thank you a lot for trying this! > next revision will be needed > pw-bot: cr > I'm not sure our Intel Wired LAN patchwork yet supports pw-bot, but I've made a note to ask Tony about investigating what would be required to add support. I've updated the IWL patchwork to mark these as changes-requested. Thanks!