From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 38F82C001B0 for ; Mon, 14 Aug 2023 13:02:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230260AbjHNNBq (ORCPT ); Mon, 14 Aug 2023 09:01:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50720 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231635AbjHNNBo (ORCPT ); Mon, 14 Aug 2023 09:01:44 -0400 Received: from mailout3.samsung.com (mailout3.samsung.com [203.254.224.33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CDA8C1718 for ; Mon, 14 Aug 2023 06:01:23 -0700 (PDT) Received: from epcas5p1.samsung.com (unknown [182.195.41.39]) by mailout3.samsung.com (KnoxPortal) with ESMTP id 20230814130113epoutp0390540672f877ceec039f2b5e9223595a~7QXkJLOi50636006360epoutp03e for ; Mon, 14 Aug 2023 13:01:13 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout3.samsung.com 20230814130113epoutp0390540672f877ceec039f2b5e9223595a~7QXkJLOi50636006360epoutp03e DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1692018073; bh=jM2VGHFb+JlqR9zjYuZhlEYqAEqGzpivCMEb/22+bAE=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=N8/b2hifmH6DnilUQOTgvOjptWpBYi1PeG915VClLEOR/R/6/rdJG/aaLNjVQnyiz OUI9tV46PMiqEqNySUcrcLf3zSdMgRQPLVWjgZiqULI/OrOtHDVz4vc3ihf84O1ywz zunoJIyBFMXsfEWUNFxZn1lUKQPEBBNIKcTryMoc= Received: from epsnrtp3.localdomain (unknown [182.195.42.164]) by epcas5p4.samsung.com (KnoxPortal) with ESMTP id 20230814130112epcas5p4911f9a9e6f010a347b48734a3237a9e6~7QXjHSw3B3072830728epcas5p4X; Mon, 14 Aug 2023 13:01:12 +0000 (GMT) Received: from epsmges5p1new.samsung.com (unknown [182.195.38.176]) by epsnrtp3.localdomain (Postfix) with ESMTP id 4RPZK22WlHz4x9Pr; Mon, 14 Aug 2023 13:01:10 +0000 (GMT) Received: from epcas5p4.samsung.com ( [182.195.41.42]) by epsmges5p1new.samsung.com (Symantec Messaging Gateway) with SMTP id 58.C3.55522.6952AD46; Mon, 14 Aug 2023 22:01:10 +0900 (KST) Received: from epsmtrp2.samsung.com (unknown [182.195.40.14]) by epcas5p3.samsung.com (KnoxPortal) with ESMTPA id 20230814121319epcas5p32e02f82561b4040f8e3fb7c7410b6de5~7PtvgeQaE2140321403epcas5p3E; Mon, 14 Aug 2023 12:13:19 +0000 (GMT) Received: from epsmgms1p2new.samsung.com (unknown [182.195.42.42]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20230814121319epsmtrp2479bbf33206258a34d03825743a7e8e3~7PtvfUa9o0884008840epsmtrp2I; Mon, 14 Aug 2023 12:13:19 +0000 (GMT) X-AuditID: b6c32a49-419ff7000000d8e2-83-64da2596b55e Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p2new.samsung.com (Symantec Messaging Gateway) with SMTP id 7D.55.30535.E5A1AD46; Mon, 14 Aug 2023 21:13:18 +0900 (KST) Received: from green245 (unknown [107.99.41.245]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20230814121315epsmtip264aaea99f00073a95cc0b32dd5a0ebd7~7PtsahaFA0358203582epsmtip2d; Mon, 14 Aug 2023 12:13:15 +0000 (GMT) Date: Mon, 14 Aug 2023 17:39:59 +0530 From: Nitesh Shetty To: Bart Van Assche Cc: Jens Axboe , Jonathan Corbet , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com, Keith Busch , Christoph Hellwig , Sagi Grimberg , Chaitanya Kulkarni , Alexander Viro , Christian Brauner , martin.petersen@oracle.com, linux-doc@vger.kernel.org, gost.dev@samsung.com, Anuj Gupta , linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, mcgrof@kernel.org, dlemoal@kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [dm-devel] [PATCH v14 02/11] Add infrastructure for copy offload in block and request layer. Message-ID: <20230814120959.ridr6xptirlcjkty@green245> MIME-Version: 1.0 In-Reply-To: <355bb623-9cd9-fe33-106e-1f091c09fb32@acm.org> User-Agent: NeoMutt/20171215 X-Brightmail-Tracker: H4sIAAAAAAAAA01TfVCTdRzv9zzPxjO6eY+86M9pOudxF/NANsb6ARKmnD1l3XF1epVXa7In IGCbe1GyTKA0kFchSEaCprxtxFtmBI10KEzAzCPexoFcB2oguKBI4sU2Njr/+/w+n+/n9327 L4l7ZXjwyHiljtEo5YkCtidxpc1fGFDkZ1MEDf3uieo623GUlreEI9NwLhtNts0AVGSfx9HY 1S8AGv05EpmnS1ho8OqPGKo23cBQvqUPoPFeA4bMtu3owqlLBPrJfJNAPc1fs1FZxbgHquxY xtBA3jhAtZOPCGS1bUS3lzpYu9bRPb/to2+PNBB0zy093WjMYNPfXTpBtwymsOmLOQUsOvuz aTb957iNoB+19rLpnMtGQM82bqYbx6awaO47CTvjGLmC0fAZZYxKEa+MjRDse1O2RxYiDRIF iELRCwK+Up7ERAiiXosO2Buf6OhZwD8iT9Q7qGi5VivY8eJOjUqvY/hxKq0uQsCoFYlqiTpQ K0/S6pWxgUpGFyYKChKHOALfT4hb7F/A1AMeyaXzuewUcJ19GnBISElg5UiBA3uSXlQLgLbM +8ApeFEzALYN6V3CHICWr9I9Vh1D6Rcxl2AGcH6iELge9wAcaq5gOaMIyg8au1IdDpJkU9th 1xPSSftQz8O50UrCGY9TxSx4paYUdwreVAIsHupjO+O5lBTmFx5z0lxqLbxZPEY4MYcKh2Vd uStF+FKb4Nnyv3HnP5Aq48CHlnPAVV0UNFrbcRf2hhMdl91V8+DstNnd81FY/WUV22X+HEBD v8FtjoQnO3NXzDgVB+sHUwkX/xws7KzFXPwamL0whrl4LmwqXcXbYE3deXeCDbDvn1Q3puHZ 6R/c47IDWGu6QOSBLYanujM8lc+Fw2CGPY1lcAwDpzbCymXSBf1hXfOO84BlBBsYtTYpltGG qEVK5uj/G49RJTWClZsQvtIEhkftgRaAkcACIIkLfLhZXJvCi6uQf3SM0ahkGn0io7WAEMey zuA83xiV46iUOplIEhokkUqlktBgqUiwnjt58pzCi4qV65gEhlEzmlUfRnJ4KdjahUy/V2+x eM+W/5HVY/DZOtEQpEonDe0fK6vEr8+Wt5B+rd8WNE8tYMH2w38txr0XwLdydr8UnN/9iZWo 3rqFOvxr8ofcT5OzxLrQTtMHp5U6vO7I/g7ZxIGa3vB3eQcfm4yl166X8Eus7WnNsvBD/45P HJT+chzOmk/cW79mc/39499vUgq9aWyyVSx6IyH+Wk/2tidC/yru3EDF2w/8Ti0bxTK0J18W 2t2Ssq6nIZR150xaXf/eJt+CIXuaOCxYQd+JGYm8awpTdz4wSHb5iQYjD1hfPiSa4vDrH6bu Ll9sNM1kBmu6jbpvHnOFz+RY7y7diGrU1yikRftZb9ntwwJCGycXCXGNVv4fIjC6FJwEAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA02Re0hTYRjG+c45OzsbrY7T6stZxigqLS/d/CqpIKFTUa3yrwprupOGbo4d L2kXraBU8lJh2MrKtEmTNKd0U0unTkvUcDnymLZoVjC8l2Cp5ZSo/x6e5/e87wsvhUubCU/q pCaO1WmUMXJSTDypl3uvCfPkVQGFuUGo7I0FRxdyJnFU0pNNImf9CEA3hsZx5Ki9DJD91TZU M3BLgLpqn2PoYUkjhq6ZbQD1deoxVMP7ooJLRQSqrnlNIOuL2yS6a+gTouKmKQy9z+kDqNQ5 SKBmXobaJ5sE2xcw1nd7mPbecoKxtsYzJmM6yVQUpTBVXakkU5h1XcBkXhwgmeE+nmAGX3aS TFalETCjpiWMydGPKSSHxcEqNuZkAqvz33pcHPXyUQ+mzRCcuj9URqSCHCIDiChIr4fdaYWY S0vpKgD570Gz/iJomGzAZ7U7fDj1VZgBxNOMA8DeiRcCV0DQy6Gx5fx0QFEk7QtbflMu24Ne CcfsxYSLx+l8ATT8ahe6Anc6GvZYykgXL6E3wmu5ybN7hwBML5G4tIR2g69vOmZuw6eROxWf cBeO0zJYPDUzXkRvgXdbsmcmzqe9YN6DH3gOcNP/19b/19b/a98DuBEsYrWcOlLNBWrXathE P06p5uI1kX4RsWoTmHm2j88zUG0c8jMDjAJmAClc7iG5IuFVUolKmZTM6mKP6eJjWM4MZBQh XygZc2aqpHSkMo6NZlktq/ubYpTIMxV7mqgcEb1VN9l2997XH4lIaPj4pWvNwitz8RSvmHyH uGNj4NIC61Zt9+5d4QX+AT/P7Wz9LFzKJeKnbXHFy5zNAzvEO1PeVde5BY+TQb11wtDFzpAW +SN9NRbybd9wYaOhU73y00FrnW17XIjHruxR/ucHWV5Wh/fR7vB+fxPY43598MSgXbicfxW7 7kHlPHXyY7/9mzu9z2rj+TSp/mZER+Ot1hL7aH158yHmRumWkbdG7Z2OOUkKUbTF98yGhAlq 27ngtLzQ1YccbUGbci+nZTR8bpPFEulcRL5FETUC7Ap/g1kxrvgtnuCLpAcyhfTzMI3Xiqur inItvO3g3io5wUUpA31wHaf8A6ifNtlbAwAA X-CMS-MailID: 20230814121319epcas5p32e02f82561b4040f8e3fb7c7410b6de5 X-Msg-Generator: CA Content-Type: multipart/mixed; boundary="----nvFln8z3L_krFSQI_duuyTsYVGNcxCMU6qftyQwhOSKtHzaF=_548ca_" X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20230811105648epcas5p3ae8b8f6ed341e2aa253e8b4de8920a4d References: <20230811105300.15889-1-nj.shetty@samsung.com> <20230811105300.15889-3-nj.shetty@samsung.com> <355bb623-9cd9-fe33-106e-1f091c09fb32@acm.org> Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org ------nvFln8z3L_krFSQI_duuyTsYVGNcxCMU6qftyQwhOSKtHzaF=_548ca_ Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Disposition: inline On 23/08/11 02:58PM, Bart Van Assche wrote: >On 8/11/23 03:52, Nitesh Shetty wrote: >>We expect caller to take a plug and send bio with source information, >>followed by bio with destination information. >>Once the src bio arrives we form a request and wait for destination >>bio. Upon arrival of destination we merge these two bio's and send >>corresponding request down to device driver. > >Is the above description up-to-date? In the cover letter there is a >different description of how copy offloading works. > Acked, This description is up to date. We need to update this description in cover letter. Thank you, Nitesh Shetty ------nvFln8z3L_krFSQI_duuyTsYVGNcxCMU6qftyQwhOSKtHzaF=_548ca_ Content-Type: text/plain; charset="utf-8" ------nvFln8z3L_krFSQI_duuyTsYVGNcxCMU6qftyQwhOSKtHzaF=_548ca_--