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Mon, 22 May 2023 15:38:23 +0000 Message-ID: <21522575-f6ef-5c8b-4a0a-0f2c208afa66@intel.com> Date: Mon, 22 May 2023 17:36:49 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Subject: Re: [PATCH RESEND bpf-next 01/15] ice: make RX hash reading code more reusable Content-Language: en-US To: Larysa Zaremba CC: , Stanislav Fomichev , "Alexei Starovoitov" , Daniel Borkmann , Andrii Nakryiko , Jakub Kicinski , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , "KP Singh" , Jiri Olsa , Jesse Brandeburg , Tony Nguyen , Anatoly Burakov , Jesper Dangaard Brouer , Alexander Lobakin , "Magnus Karlsson" , Maryam Tahhan , , , , References: <20230512152607.992209-1-larysa.zaremba@intel.com> <20230512152607.992209-2-larysa.zaremba@intel.com> <0c40b366-cdb5-f868-00c3-d8f485452cce@intel.com> From: Alexander Lobakin In-Reply-To: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: FR2P281CA0037.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:92::6) To DM6PR11MB3625.namprd11.prod.outlook.com (2603:10b6:5:13a::21) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6PR11MB3625:EE_|PH7PR11MB8569:EE_ X-MS-Office365-Filtering-Correlation-Id: a9e02455-556b-4659-5db5-08db5ada936d 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; 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>>> + *dst = le32_to_cpu(nic_mdid->rss_hash); >>> + return true; >> >> You can just return the hash. `hash == 0` means there's no hash, so it >> basically means `false`, while non-zero is `true`. > > Agree about both hash and timestamp. > > Taking this comment and the earlier on into account, I'll name functions like > that: > > ice_get_rx_hash() > ice_get_vlan_tag() > ice_ptp_get_rx_hwts_ns() Sounds good to me! [...] Thanks, Olek