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Tue, 21 May 2024 06:57:30 +0000 Message-ID: Date: Tue, 21 May 2024 08:57:29 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v20 01/12] block: Introduce queue limits and sysfs for copy-offload support Content-Language: en-US To: Nitesh Shetty , Jens Axboe , Jonathan Corbet , Alasdair Kergon , Mike Snitzer , Mikulas Patocka , Keith Busch , Christoph Hellwig , Sagi Grimberg , Chaitanya Kulkarni , Alexander Viro , Christian Brauner , Jan Kara Cc: martin.petersen@oracle.com, bvanassche@acm.org, david@fromorbit.com, damien.lemoal@opensource.wdc.com, anuj20.g@samsung.com, joshi.k@samsung.com, nitheshshetty@gmail.com, gost.dev@samsung.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, dm-devel@lists.linux.dev, linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org References: <20240520102033.9361-1-nj.shetty@samsung.com> <20240520102033.9361-2-nj.shetty@samsung.com> From: Hannes Reinecke In-Reply-To: <20240520102033.9361-2-nj.shetty@samsung.com> Content-Type: text/plain; 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DKIM_TRACE(0.00)[suse.de:+]; R_RATELIMIT(0.00)[to_ip_from(RLghztw5pzjjmtx4kirkcu9cad)]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:dkim,suse.de:email] X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240520_235734_537307_B19FF5F5 X-CRM114-Status: GOOD ( 10.29 ) 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 5/20/24 12:20, Nitesh Shetty wrote: > Add device limits as sysfs entries, > - copy_max_bytes (RW) > - copy_max_hw_bytes (RO) > > Above limits help to split the copy payload in block layer. > copy_max_bytes: maximum total length of copy in single payload. > copy_max_hw_bytes: Reflects the device supported maximum limit. > > Signed-off-by: Nitesh Shetty > Signed-off-by: Kanchan Joshi > Signed-off-by: Anuj Gupta > --- > Documentation/ABI/stable/sysfs-block | 23 +++++++++++++++ > block/blk-settings.c | 34 ++++++++++++++++++++-- > block/blk-sysfs.c | 43 ++++++++++++++++++++++++++++ > include/linux/blkdev.h | 14 +++++++++ > 4 files changed, 112 insertions(+), 2 deletions(-) > Reviewed-by: Hannes Reinecke Cheers, Hannes -- Dr. Hannes Reinecke Kernel Storage Architect hare@suse.de +49 911 74053 688 SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich