From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id EAA25A0573; Thu, 5 Mar 2020 17:06:15 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 03F592BA8; Thu, 5 Mar 2020 17:06:15 +0100 (CET) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id B05363B5 for ; Thu, 5 Mar 2020 17:06:13 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Mar 2020 08:06:12 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,518,1574150400"; d="scan'208";a="275141945" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.20]) ([10.237.221.20]) by fmsmga002.fm.intel.com with ESMTP; 05 Mar 2020 08:06:06 -0800 To: Thomas Monjalon Cc: dev@dpdk.org, David Marchand , Andrew Rybchenko , Xiaolong Ye , Qi Zhang References: <20200305145533.1363013-1-ferruh.yigit@intel.com> <2211186.yKrmzQ4Hd0@xps> From: Ferruh Yigit Autocrypt: addr=ferruh.yigit@intel.com; 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charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [dpdk-dev] [PATCH] devtools: add more headline case rules X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 3/5/2020 3:11 PM, Thomas Monjalon wrote: > 05/03/2020 15:55, Ferruh Yigit: >> FDIR -> Flow Director > > In general I prefer avoiding FDIR for two reasons: > 1/ this is an Intel-only acronym Yes, it is "Intel Ethernet Flow Director" but still it is a valid abbreviation and we have it in our git logs. > 2/ rte_flow API is superseding it I think there is a confusion here, two things seems confused. Flow director is a NIC feature for filtering different flows to different queues. It is kind of advanced RSS [1]. You can use rte_flow to program FDIR, which is what we are doing for a while. So this is *not* something conflicts with rte_flow. Also there is 'filter_ctrl' API (rte_eth_dev_filter_ctrl) which is deprecated, and which can be used to control HW filtering, including FDIR. So 'rte_flow' doesn't supersede 'FDIR', it supersede 'filter_ctrl' API, and 'FDIR' feature can be used with rte_flow. [1] https://software.intel.com/en-us/articles/setting-up-intel-ethernet-flow-director " Intel® Ethernet Flow Director (Intel® Ethernet FD) directs Ethernet packets to the core where the packet consuming process, application, container, or microservice is running. It is a step beyond receive side scaling (RSS) in which packets are sent to different cores for interrupt processing, and then subsequently forwarded to cores on which the consuming process is running. Intel Ethernet FD supports advanced filters that direct received packets to different queues, and enables tight control on flow in the platform. It matches flows and CPU cores where the processing application is running for flow affinity, and supports multiple parameters for flexible flow classification and load balancing. When operating in Application Targeting Routing (ATR) mode, Intel Ethernet FD is essentially the hardware offloaded version of Receive Flow Steering available on Linux* systems, and when running in this mode, Receive Packet Steering and Receive Flow Steering are disabled. " > >> OOB -> Out Of Bounds > > I don't think it is a good idea to use this acronym. It is not a techno. > I prefer out-of-bounds with all letters. This is coming from the git history, it seems we have used it in past at least once. Do you prefer to drop it? > > The rest looks fine, thanks. > >