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Tue, 16 Mar 2021 08:51:31 -0700 (PDT) Subject: Re: [RFC PATCH v3 0/3] Async nvme passthrough over io_uring To: Kanchan Joshi , hch@lst.de, kbusch@kernel.org, chaitanya.kulkarni@wdc.com Cc: io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, anuj20.g@samsung.com, javier.gonz@samsung.com, nj.shetty@samsung.com, selvakuma.s1@samsung.com References: <20210316140126.24900-1-joshi.k@samsung.com> From: Jens Axboe Message-ID: Date: Tue, 16 Mar 2021 09:51:30 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210316140126.24900-1-joshi.k@samsung.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210316_155134_761172_F68A2BD7 X-CRM114-Status: GOOD ( 12.33 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On 3/16/21 8:01 AM, Kanchan Joshi wrote: > This series adds async passthrough capability for nvme block-dev over > iouring_cmd. The patches are on top of Jens uring-cmd branch: > https://git.kernel.dk/cgit/linux-block/log/?h=io_uring-fops.v3 > > Application is expected to allocate passthrough command structure, set > it up traditionally, and pass its address via "block_uring_cmd->addr". > On completion, CQE is posted with completion-status after any ioctl > specific buffer/field update. Do you have a test app? I'd be curious to try and add support for this to t/io_uring from fio just to run some perf numbers. -- Jens Axboe _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme