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Tue, 25 Mar 2025 16:23:54 +0000 Message-ID: <0cee0610-19e7-4f25-9f27-86908834f36d@intel.com> Date: Tue, 25 Mar 2025 18:23:47 +0200 User-Agent: Mozilla Thunderbird Subject: Re: [Intel-wired-lan] [PATCH iwl-net] igc: Fix XSK queue NAPI ID mapping To: Joe Damato , CC: , , , , Alexei Starovoitov , Daniel Borkmann , "David S. Miller" , Jakub Kicinski , "Jesper Dangaard Brouer" , John Fastabend , "Przemek Kitszel" , Andrew Lunn , Eric Dumazet , Paolo Abeni , "open list:XDP (eXpress Data Path)" , "moderated list:INTEL ETHERNET DRIVERS" , open list References: <20250305180901.128286-1-jdamato@fastly.com> Content-Language: en-US From: Mor Bar-Gabay In-Reply-To: <20250305180901.128286-1-jdamato@fastly.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: TLZP290CA0006.ISRP290.PROD.OUTLOOK.COM (2603:1096:950:9::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_|DS0PR11MB6472:EE_ X-MS-Office365-Filtering-Correlation-Id: 6df74bd8-8566-4e83-6fec-08dd6bb96f45 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|1800799024|366016|376014|7416014|7053199007; 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After > discussion on the mailing list and the introduction of a test to codify > the expected behavior, we can see that the unmapping causes the > check_xsk test to fail: > > NETIF=enp86s0 ./tools/testing/selftests/drivers/net/queues.py > > [...] > # Check| ksft_eq(q.get('xsk', None), {}, > # Check failed None != {} xsk attr on queue we configured > not ok 4 queues.check_xsk > > After this commit, the test passes: > > ok 4 queues.check_xsk > > Note that the test itself is only in net-next, so I tested this change > by applying it to my local net-next tree, booting, and running the test. > > Cc: stable@vger.kernel.org > Fixes: b65969856d4f ("igc: Link queues to NAPI instances") > Signed-off-by: Joe Damato > Reviewed-by: Gerhard Engleder > --- > drivers/net/ethernet/intel/igc/igc_xdp.c | 2 -- > 1 file changed, 2 deletions(-) > Tested-by: Mor Bar-Gabay