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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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220427_150537_175528_8A9990F0 X-CRM114-Status: GOOD ( 14.67 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.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