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 B0DF8A0513 for ; Tue, 9 Jun 2020 17:55:07 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 7D5A82C15; Tue, 9 Jun 2020 17:55:07 +0200 (CEST) Received: from EUR01-VE1-obe.outbound.protection.outlook.com (mail-eopbgr140073.outbound.protection.outlook.com [40.107.14.73]) by dpdk.org (Postfix) with ESMTP id 0163F1C01 for ; Tue, 9 Jun 2020 17:55:05 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=+L/Y6eEJ26houOJBjV93/4BAtTS5iNpeQmQY7a3UJKY=; b=Z5FXhaxz4dVCoSOlupmXPC3+E1ScHT4wOALSd+8A6PIO8+D0Cp7XS9WVYr/6O8Kv/EOEVr4ZIoXLQVjTMdABTM35ZJWFCKr78Uu7o1bP8oNupWBVRQcMStOVlU+Uv+M50vl+zVLKR/GRzSQPnOBRyZwfgqIEzGzp2L5MIBDLTnw= Received: from DB6PR0601CA0034.eurprd06.prod.outlook.com (2603:10a6:4:17::20) by AM6PR08MB4231.eurprd08.prod.outlook.com (2603:10a6:20b:73::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3088.18; Tue, 9 Jun 2020 15:55:03 +0000 Received: from DB5EUR03FT048.eop-EUR03.prod.protection.outlook.com (2603:10a6:4:17:cafe::13) by DB6PR0601CA0034.outlook.office365.com (2603:10a6:4:17::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3066.18 via Frontend Transport; Tue, 9 Jun 2020 15:55:03 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 63.35.35.123) smtp.mailfrom=arm.com; dpdk.org; dkim=pass (signature was verified) header.d=armh.onmicrosoft.com;dpdk.org; dmarc=bestguesspass action=none header.from=arm.com; Received-SPF: Pass (protection.outlook.com: domain of arm.com designates 63.35.35.123 as permitted sender) receiver=protection.outlook.com; client-ip=63.35.35.123; helo=64aa7808-outbound-1.mta.getcheckrecipient.com; Received: from 64aa7808-outbound-1.mta.getcheckrecipient.com (63.35.35.123) by DB5EUR03FT048.mail.protection.outlook.com (10.152.21.28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3066.18 via Frontend Transport; Tue, 9 Jun 2020 15:55:01 +0000 Received: ("Tessian outbound 1145f7a293ca:v59"); Tue, 09 Jun 2020 15:55:01 +0000 X-CR-MTA-TID: 64aa7808 Received: from 3bc724fa6309.1 by 64aa7808-outbound-1.mta.getcheckrecipient.com id 8231B872-0057-48B5-A37B-722CFB9BC4CC.1; Tue, 09 Jun 2020 15:54:56 +0000 Received: from EUR01-VE1-obe.outbound.protection.outlook.com by 64aa7808-outbound-1.mta.getcheckrecipient.com with ESMTPS id 3bc724fa6309.1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384); Tue, 09 Jun 2020 15:54:56 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=WOGOLXJ7XSzfOjnYoh/eaeFkAveTrCyr3mCEHUEueIoMLG9iCRIj/5mPUtJi3BQpqaBBCmbqg4O6qjCu2kNG+Bp097w/iT5MAww7SlhliQjQkYJG4f6M0VXy7/EpjAAZT2xuaowO+jVhnonaDlfJle5zQe8HFT2H8wxYKuaWj0NuJmJkRrdv/vUoEAToQXw5XlpLe04K8NO5INBVvg2O2ne1dQGKyDdDU6E6MzqA76VupTr/N+sN8qDOIolTQmVTAwaPuXWHGdlFLnok9s1sAY0UrBxUs8KyD8LHYUz0LtoipVtdYzwrNqxNZ5aroV9nCV2Wrq30QNy6NhFPEszYIQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=+L/Y6eEJ26houOJBjV93/4BAtTS5iNpeQmQY7a3UJKY=; b=a9uRaidqqznhpKPbsCCfs3nZ+zz2grsBV6iNvrD6n5LLAYkgmQOAofFjgtEkSvtrVy8tBTSihm86LuKakR9x+8xsiVYSCZ0mxhWuOCcs2K33lyWnGL78D/anqKWXblHxJ2DBg7H0BZZf8Vpqn4FdIp5gdwepHiqpD3/GPlpnraesljL7kkP2I0nAJJKA9ggdpibBbx8xFBWt/L38GPtotuWHGbWmpxKiLKTLFMOB3276dAEFvcFuLpR50CPtygUBWVo1jdopg3JO2RxrQLgeQqWbmpoxANn5RbiwY+eMJxnh8xDS8PQnzvJ11/aSjweEobBPt8D3U4aCFyJZXzBasg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=arm.com; dmarc=pass action=none header.from=arm.com; dkim=pass header.d=arm.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=+L/Y6eEJ26houOJBjV93/4BAtTS5iNpeQmQY7a3UJKY=; b=Z5FXhaxz4dVCoSOlupmXPC3+E1ScHT4wOALSd+8A6PIO8+D0Cp7XS9WVYr/6O8Kv/EOEVr4ZIoXLQVjTMdABTM35ZJWFCKr78Uu7o1bP8oNupWBVRQcMStOVlU+Uv+M50vl+zVLKR/GRzSQPnOBRyZwfgqIEzGzp2L5MIBDLTnw= Received: from DB6PR0802MB2216.eurprd08.prod.outlook.com (2603:10a6:4:85::9) by DB6PR0802MB2391.eurprd08.prod.outlook.com (2603:10a6:4:a0::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3066.18; Tue, 9 Jun 2020 15:54:54 +0000 Received: from DB6PR0802MB2216.eurprd08.prod.outlook.com ([fe80::1128:b7e7:e832:310f]) by DB6PR0802MB2216.eurprd08.prod.outlook.com ([fe80::1128:b7e7:e832:310f%9]) with mapi id 15.20.3066.023; Tue, 9 Jun 2020 15:54:54 +0000 From: Honnappa Nagarahalli To: "thomas@monjalon.net" CC: "web@dpdk.org" , nd , Honnappa Nagarahalli Thread-Topic: [PATCH] update Arm roadmap for 20.08 Thread-Index: AQHWPg4SIugs7aQ4yUeDBFA3pHWYuKjP7haAgABn2mA= Date: Tue, 9 Jun 2020 15:54:54 +0000 Message-ID: References: <20200609032823.22469-1-honnappa.nagarahalli@arm.com> <2523689.0iaz9iMqiZ@thomas> In-Reply-To: <2523689.0iaz9iMqiZ@thomas> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ts-tracking-id: f20e5870-6e4b-4c5d-afdb-a2615c095c8f.0 x-checkrecipientchecked: true Authentication-Results-Original: monjalon.net; dkim=none (message not signed) header.d=none; monjalon.net; dmarc=none action=none header.from=arm.com; x-originating-ip: [70.113.25.165] x-ms-publictraffictype: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 9b9dc26a-478f-4c16-8a66-08d80c8d77f0 x-ms-traffictypediagnostic: DB6PR0802MB2391:|AM6PR08MB4231: x-ld-processed: f34e5979-57d9-4aaa-ad4d-b122a662184d,ExtAddr x-ms-exchange-transport-forked: True X-Microsoft-Antispam-PRVS: x-checkrecipientrouted: true nodisclaimer: true x-ms-oob-tlc-oobclassifiers: OLM:7219;OLM:7219; x-forefront-prvs: 042957ACD7 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Untrusted: BCL:0; X-Microsoft-Antispam-Message-Info-Original: A5yeMYjJ+7/T+DiJZJcNF5RIkUMm0+wSF0yD+hdxytU5tkXSrzvEMQjLslCjs3vPqyhxj8N75URAwG0cBmrAFuy8nZ2Q0m+j1sjApm/rbhVn6DR2V/2N44ZsE3Vuu6HCJg52o2HPVcaG33f30nL686cAjFnyf9TyoVhcEpNjkWuF8qEq3XgOnBlpzfVC/FdirtYCvLDRRGPSSQe91T/MR/RVUKhNVeb7xaJilraYAer2XzqxeqPWYgH8oBB6mxgOjtK5zZw6lMSrpXTnYtLhA2FCGjuCRbqahfJzbo4he9zKhgBPXflK6TjykQl3ZzmUxx89Qzk+L4FstzmfAd9vQR1O62bJS8TffFfBPtisWjPlvGya7UN+/LuB2+L1St0DtNvrjFd1GyU+1ojNvzY0Ow== X-Forefront-Antispam-Report-Untrusted: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:DB6PR0802MB2216.eurprd08.prod.outlook.com; PTR:; CAT:NONE; SFTY:; SFS:(4636009)(366004)(346002)(396003)(136003)(39860400002)(376002)(186003)(64756008)(83380400001)(5660300002)(52536014)(9686003)(71200400001)(66476007)(7696005)(2906002)(76116006)(66946007)(4326008)(966005)(66556008)(6916009)(66446008)(15650500001)(54906003)(8676002)(478600001)(6506007)(86362001)(8936002)(26005)(33656002)(316002)(55016002)(53546011); DIR:OUT; SFP:1101; x-ms-exchange-antispam-messagedata: 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB6PR0802MB2391 Original-Authentication-Results: monjalon.net; dkim=none (message not signed) header.d=none; monjalon.net; dmarc=none action=none header.from=arm.com; X-EOPAttributedMessage: 0 X-MS-Exchange-Transport-CrossTenantHeadersStripped: DB5EUR03FT048.eop-EUR03.prod.protection.outlook.com X-Forefront-Antispam-Report: CIP:63.35.35.123; CTRY:IE; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:64aa7808-outbound-1.mta.getcheckrecipient.com; PTR:ec2-63-35-35-123.eu-west-1.compute.amazonaws.com; CAT:NONE; SFTY:; SFS:(4636009)(136003)(376002)(396003)(346002)(39860400002)(46966005)(966005)(6862004)(82740400003)(83380400001)(55016002)(9686003)(356005)(5660300002)(86362001)(4326008)(26005)(82310400002)(8936002)(54906003)(316002)(52536014)(47076004)(7696005)(81166007)(8676002)(186003)(53546011)(33656002)(15650500001)(70206006)(70586007)(2906002)(336012)(478600001)(6506007); DIR:OUT; SFP:1101; X-MS-Office365-Filtering-Correlation-Id-Prvs: 9fcee874-839c-4c39-4053-08d80c8d7396 X-Forefront-PRVS: 042957ACD7 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 1bJ+x563IQs1P4Vad/5KEsOkpxzZoOIlXFFkyjXwEt378u15f15vNMeKszfan+zKUOE5NhkmcLPQ4uBbDWoHlOJq2c28gVCQJZUeWk1FnqZoQQvFScAQZVZc0AZYkD+JrR/UHtTSo4NnVZIHSCJ/aFNamFxsYbswQSYdfF2aKrUEYkUOF/tlx2J6O/nAK4VNuuPIHG+CfzCAmlCDvgwz5IUANRawlxDf0R3qqCz1hdD+iNEzAKlCSoqDO/k/Yuc3XhcIjS5HfVtVwpiHEIguxiEApNFxjo+ww+4freAtngxiYjqdldqNah8iJTuVpoc5DTRkFsRFuLqYRJKNY3AZZlUVe49fj4GwUMwDZJle5zdOxrGMBjPc7ScXbrJc0SbH6nM0ZFs6Ng+U519Ia51s2Ffc7r0zJmV+7II1axbQXsNaYIHi8PV9HIHbArJgCE4zwozWCK/udtaS2WEIATXX63Yj6TzOCZnvmwq+0WehiDE= X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Jun 2020 15:55:01.5030 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 9b9dc26a-478f-4c16-8a66-08d80c8d77f0 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d; Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR08MB4231 Subject: Re: [dpdk-web] [PATCH] update Arm roadmap for 20.08 X-BeenThere: web@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK website maintenance List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: web-bounces@dpdk.org Sender: "web" Thanks Thomas for your comments. > -----Original Message----- > From: Thomas Monjalon > Sent: Tuesday, June 9, 2020 3:08 AM > To: Honnappa Nagarahalli > Cc: web@dpdk.org; nd > Subject: Re: [PATCH] update Arm roadmap for 20.08 >=20 > 09/06/2020 05:28, Honnappa Nagarahalli: > > Signed-off-by: Honnappa Nagarahalli >=20 > Additional explanation: > Was announced in the dpdk-dev mailing list: > http://mails.dpdk.org/archives/dev/2020-June/169542.html >=20 > > +- Bit operations APIs for PMDs > > +- rte_atomic API deprecation with-in DPDK >=20 > Deprecation is not a feature to coordinate in the roadmap I think. Ok, no problem. I just wanted to make sure that the community is on-board i= n reviewing the patch and making decisions. I guess the proposal on the mai= ling list is enough for that? >=20 > > +- Use C11 atomic semantics in mbuf, eventdev, eal interrupts > > +- CPU frequency calculation using generic counter for Arm platforms > > +- LPM library integration with RCU library >=20 > I would word it in reverse order: isn't it the RCU lib which is integrate= d in LPM? I guess it is more about which library was created first. I will reverse th= e order. >=20 > > +- Change IO barriers to align with other-multi-copy atomicity memory > model for Armv8-a >=20 > I don't understand "other-multi-copy atomicity". There were few references provided in the patch. They are at [1], [2] and [= 3]. But, I guess it is not clear what this work item means exactly. I can c= hange it as follows: "Change IO barriers to use 'DMB' instruction for Armv8-a" The patch itself is trivial. But, it is a basic change affecting all the dr= ivers for Arm platforms. So, I would like to call out everyone's attention. [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/comm= it/?id=3D22ec71615d824f4f11d38d0e55a88d8956b7e45f [2] https://www.youtube.com/watch?v=3Di6DayghhA8Q [3] https://www.cl.cam.ac.uk/~pes20/armv8-mca/ >=20