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dmarc=fail action=none header.from=nxp.com; Received-SPF: Fail (protection.outlook.com: domain of nxp.com does not designate 192.88.168.50 as permitted sender) receiver=protection.outlook.com; client-ip=192.88.168.50; helo=tx30smr01.am.freescale.net; Received: from tx30smr01.am.freescale.net (192.88.168.50) by BL2FFO11FD030.mail.protection.outlook.com (10.173.161.40) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.721.5 via Frontend Transport; Tue, 22 Nov 2016 09:03:10 +0000 X-IncomingTopHeaderMarker: OriginalChecksum:; UpperCasedChecksum:; SizeAsReceived:1227; Count:13 Received: from [10.232.14.87] ([10.232.14.87]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id uAM935N2024391; Tue, 22 Nov 2016 02:03:06 -0700 To: Yuanhan Liu <yuanhan.liu@linux.intel.com>, Jerin Jacob <jerin.jacob@caviumnetworks.com> References: <1479447902-3700-1-git-send-email-jerin.jacob@caviumnetworks.com> <20161118152518.GA121080@bricha3-MOBL3.ger.corp.intel.com> <20161118160428.GA123692@bricha3-MOBL3.ger.corp.intel.com> <20161118192715.GA8674@localhost.localdomain> <20161122020014.GU5048@yliu-dev.sh.intel.com> CC: Bruce Richardson <bruce.richardson@intel.com>, <dev@dpdk.org>, <harry.van.haaren@intel.com>, <hemant.agrawal@nxp.com>, <gage.eads@intel.com>, <thomas.monjalon@6wind.com> From: Shreyansh Jain <shreyansh.jain@nxp.com> Message-ID: <4f5ca36a-fd9f-7589-bf6d-2a9d9639f2e8@nxp.com> Date: Tue, 22 Nov 2016 14:35:20 +0530 User-Agent: Mozilla/5.0 (X11; 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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY2PR0301MB0743 Subject: Re: [dpdk-dev] [PATCH 0/4] libeventdev API and northbound implementation X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK <dev.dpdk.org> List-Unsubscribe: <http://dpdk.org/ml/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://dpdk.org/ml/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <http://dpdk.org/ml/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> X-List-Received-Date: Tue, 22 Nov 2016 09:03:17 -0000 On Tuesday 22 November 2016 07:30 AM, Yuanhan Liu wrote: > On Sat, Nov 19, 2016 at 12:57:15AM +0530, Jerin Jacob wrote: >> On Fri, Nov 18, 2016 at 04:04:29PM +0000, Bruce Richardson wrote: >>> +Thomas >>> >>> On Fri, Nov 18, 2016 at 03:25:18PM +0000, Bruce Richardson wrote: >>>> On Fri, Nov 18, 2016 at 11:14:58AM +0530, Jerin Jacob wrote: >>>>> As previously discussed in RFC v1 [1], RFC v2 [2], with changes >>>>> described in [3] (also pasted below), here is the first non-draft series >>>>> for this new API. >>>>> >>>>> [1] http://dpdk.org/ml/archives/dev/2016-August/045181.html >>>>> [2] http://dpdk.org/ml/archives/dev/2016-October/048592.html >>>>> [3] http://dpdk.org/ml/archives/dev/2016-October/048196.html >>>>> >>>>> Changes since RFC v2: >>>>> >>>>> - Updated the documentation to define the need for this library[Jerin] >>>>> - Added RTE_EVENT_QUEUE_CFG_*_ONLY configuration parameters in >>>>> struct rte_event_queue_conf to enable optimized sw implementation [Bruce] >>>>> - Introduced RTE_EVENT_OP* ops [Bruce] >>>>> - Added nb_event_queue_flows,nb_event_port_dequeue_depth, nb_event_port_enqueue_depth >>>>> in rte_event_dev_configure() like ethdev and crypto library[Jerin] >>>>> - Removed rte_event_release() and replaced with RTE_EVENT_OP_RELEASE ops to >>>>> reduce fast path APIs and it is redundant too[Jerin] >>>>> - In the view of better application portability, Removed pin_event >>>>> from rte_event_enqueue as it is just hint and Intel/NXP can not support it[Jerin] >>>>> - Added rte_event_port_links_get()[Jerin] >>>>> - Added rte_event_dev_dump[Harry] >>>>> >>>>> Notes: >>>>> >>>>> - This patch set is check-patch clean with an exception that >>>>> 02/04 has one WARNING:MACRO_WITH_FLOW_CONTROL >>>>> - Looking forward to getting additional maintainers for libeventdev >>>>> >>>>> >>>>> Possible next steps: >>>>> 1) Review this patch set >>>>> 2) Integrate Intel's SW driver[http://dpdk.org/dev/patchwork/patch/17049/] >>>>> 3) Review proposed examples/eventdev_pipeline application[http://dpdk.org/dev/patchwork/patch/17053/] >>>>> 4) Review proposed functional tests[http://dpdk.org/dev/patchwork/patch/17051/] >>>>> 5) Cavium's HW based eventdev driver >>>>> >>>>> I am planning to work on (3),(4) and (5) >>>>> >>>> Thanks Jerin, >>>> >>>> we'll review and get back to you with any comments or feedback (1), and >>>> obviously start working on item (2) also! :-) >>>> >>>> I'm also wonder whether we should have a staging tree for this work to >>>> make interaction between us easier. Although this may not be >>>> finalised enough for 17.02 release, do you think having an >>>> dpdk-eventdev-next tree would be a help? My thinking is that once we get >>>> the eventdev library itself in reasonable shape following our review, we >>>> could commit that and make any changes thereafter as new patches, rather >>>> than constantly respinning the same set. It also gives us a clean git >>>> tree to base the respective driver implementations on from our two sides. >>>> >>>> Thomas, any thoughts here on your end - or from anyone else? >> >> I was thinking more or less along the same lines. To avoid re-spinning the >> same set, it is better to have libeventdev library mark as EXPERIMENTAL >> and commit it somewhere on dpdk-eventdev-next or main tree >> >> I think, EXPERIMENTAL status can be changed only when >> - At least two event drivers available >> - Functional test applications fine with at least two drivers >> - Portable example application to showcase the features of the library >> - eventdev integration with another dpdk subsystem such as ethdev > > I'm wondering maybe we could have a staging tree, for all features like > this one (and one branch for each feature)? > > --yliu > +1 It would help a lot of 'experimental' stuff reach a wider audience without waiting for a complete cycle of upstreaming. Though, I am not sure how would we limit the branches - or if that is even required. -- - Shreyansh