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 11444C433F5 for ; Wed, 27 Apr 2022 22:06:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230270AbiD0WJM (ORCPT ); Wed, 27 Apr 2022 18:09:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238086AbiD0WIt (ORCPT ); Wed, 27 Apr 2022 18:08:49 -0400 Received: from esa5.hgst.iphmx.com (esa5.hgst.iphmx.com [216.71.153.144]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9BAC0237DC for ; Wed, 27 Apr 2022 15:05:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1651097135; x=1682633135; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=Ltiub3iDq6D6Wb7M/70Y0VAAaW3D7ZlOojkFrPEHoeo=; b=Skr8I68pPMUR8cKi472dj8zdn4PkG/n9dfNhokP02ci3cERKVdOZioRH frEioB3FZ1BoI3the+3gdpWcVY+VPyHGX4jrhWEWIqrmeEKaChnlK3Maa BUH3ogPnKm9tHdOWwiumM/BVL3viCR4/HLGjQ9CoYGWG9ZTOvJb1GOFpn Paqsghnds83ZLrmNfJOVTRh1m87xjATOTqtoq6eRvuaCIERqVkrDMPGJD sPOIYQUfDVHPLcK9cQmYQPRLh3EdSsoVB8i+vwjx0rISr/yrCZOLvA76c /tJVQsmeTNeLTNkwmuu34vWd2RPStbaRCpjQZx4m8v85R74hWSL7kcN8V A==; X-IronPort-AV: E=Sophos;i="5.90,294,1643644800"; d="scan'208";a="198996981" Received: from uls-op-cesaip01.wdc.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 28 Apr 2022 06:05:34 +0800 IronPort-SDR: k48ZhxNIAyaBViLivn1hNQaW6S7A6qWfeDmilNSp1Zw3mnqdUkJlMWm576GekN+O2ncqx/rWdh RfPrZKiDTid5UJlrDmQULtz7Hk4IxDjClqwe1C2MR5rkC7XU5yHK63uHyxD7cXdpu3SaQs6n2U z6XXk7eD2aXKkdYv5CRevAL3ElIxkUXTWtA3SofMKRJo0VG6OBGZgbjTuplOAjJT6aUlRP5tWM 3bDvM80zBzpsO14ogPiW6yzeyYdL0qer32LwrKaIppe6QOz92KpJa8kfm+NUDz4Vv6azHaXQDc CkkuQOo9r/A4ifM9I5io1iuo Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 27 Apr 2022 14:36:27 -0700 IronPort-SDR: 6PSA4mM5U4H65HM6VwB/DrVVWvvf5ukHZAcqt4Q67XjfkOmmQwTT8SBJPl8GGO1y6D1VQeeF0v KkcquHEuSasXZ10xtZWZXjIkHknufKPdvJ5S0bnIZkKwObZzsezoQJYrMK1PtHrL0IrrCcuWgP +W/FKW7fGWGM5uNBbnYDrTqVrhOhLrnKVHriPi7gfnHBcZQIS2GVAzVTzKA7MgmjoUpscXi29y NAQsK89lYEXlZ3EI6TcZk+UaeG6FXbzImLBb433HfF1RtYnXPv+/+4tsgQk3jsanArvCEW0s3i +Xo= WDCIronportException: Internal Received: from usg-ed-osssrv.wdc.com ([10.3.10.180]) by uls-op-cesaip01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 27 Apr 2022 15:05:35 -0700 Received: from usg-ed-osssrv.wdc.com (usg-ed-osssrv.wdc.com [127.0.0.1]) by usg-ed-osssrv.wdc.com (Postfix) with ESMTP id 4KpXqy6k1tz1SVp1 for ; Wed, 27 Apr 2022 15:05:34 -0700 (PDT) Authentication-Results: usg-ed-osssrv.wdc.com (amavisd-new); dkim=pass reason="pass (just generated, assumed good)" header.d=opensource.wdc.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d= opensource.wdc.com; h=content-transfer-encoding:content-type :in-reply-to:organization:from:references:to:content-language :subject:user-agent:mime-version:date:message-id; s=dkim; t= 1651097134; x=1653689135; bh=Ltiub3iDq6D6Wb7M/70Y0VAAaW3D7ZlOojk FrPEHoeo=; b=tf10gyOH0lx9kTAQMvmNEOqbTNS9DLTOZB9qsNe71qSj+MlslLY F2EMsRT1hYv8Uex+f8eyJX1V+hNKxnq0ZvLAwm2N9h1bKDM2qAdaXd8XFxq2OFtZ V4RlBXCG//INUr7wVIQqFsb2qymtVwVHXuxY8eD6UpYIYKBOcpCxEpfLcPWyOf+Z a1goiEri2UoD+WOlXIFCHSZYAnDDnYTLxwQ44EG/xQ6NBuYZ4KdX6hPN8R/IC8+K mjJuGAhmLtYWSzjRHY0sOUl5Yj3top3PIke6IkXYtsIwx8o7NXzckBhJqqv2uDvr xwDwWqUps86ht4CXLQyUclRDU1FKcwhVZrQ== X-Virus-Scanned: amavisd-new at usg-ed-osssrv.wdc.com Received: from usg-ed-osssrv.wdc.com ([127.0.0.1]) by usg-ed-osssrv.wdc.com (usg-ed-osssrv.wdc.com [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id o6PHTTDOjPkH for ; Wed, 27 Apr 2022 15:05:34 -0700 (PDT) Received: from [10.225.163.27] (unknown [10.225.163.27]) by usg-ed-osssrv.wdc.com (Postfix) with ESMTPSA id 4KpXqx1gFtz1Rvlc; Wed, 27 Apr 2022 15:05:33 -0700 (PDT) Message-ID: Date: Thu, 28 Apr 2022 07:05:32 +0900 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.0 Subject: Re: [PATCH v4 00/10] Add Copy offload support Content-Language: en-US To: Nitesh Shetty Cc: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, dm-devel@redhat.com, linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, nitheshshetty@gmail.com, linux-kernel@vger.kernel.org References: <20220426101241.30100-1-nj.shetty@samsung.com> <6a85e8c8-d9d1-f192-f10d-09052703c99a@opensource.wdc.com> <20220427124951.GA9558@test-zns> From: Damien Le Moal Organization: Western Digital Research In-Reply-To: <20220427124951.GA9558@test-zns> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org On 4/27/22 21:49, Nitesh Shetty wrote: > O Wed, Apr 27, 2022 at 11:19:48AM +0900, Damien Le Moal wrote: >> On 4/26/22 19:12, Nitesh Shetty wrote: >>> The patch series covers the points discussed in November 2021 virtual= call >>> [LSF/MM/BFP TOPIC] Storage: Copy Offload[0]. >>> We have covered the Initial agreed requirements in this patchset. >>> Patchset borrows Mikulas's token based approach for 2 bdev >>> implementation. >>> >>> Overall series supports =E2=80=93 >>> >>> 1. Driver >>> - NVMe Copy command (single NS), including support in nvme-target (fo= r >>> block and file backend) >> >> It would also be nice to have copy offload emulation in null_blk for t= esting. >> >=20 > We can plan this in next phase of copy support, once this series settle= s down. So how can people test your series ? Not a lot of drives out there with copy support. >=20 > -- > Nitesh Shetty >=20 >=20 --=20 Damien Le Moal Western Digital Research