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Petersen" Organization: Oracle Corporation References: Date: Fri, 10 Jan 2020 00:33:27 -0500 In-Reply-To: (Bart Van Assche's message of "Wed, 8 Jan 2020 19:18:54 -0800") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1.92 (gnu/linux) MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9495 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1911140001 definitions=main-2001100047 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9495 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1911140001 definitions=main-2001100047 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200109_213356_214005_DE566C17 X-CRM114-Status: GOOD ( 12.29 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "axboe@kernel.dk" , "roland@purestorage.com" , "msnitzer@redhat.com" , Chaitanya Kulkarni , "linux-scsi@vger.kernel.org" , Matias Bjorling , "linux-nvme@lists.infradead.org" , Stephen Bates , "linux-block@vger.kernel.org" , "dm-devel@redhat.com" , "mpatocka@redhat.com" , "hare@suse.de" , "Martin K. Petersen" , Keith Busch , "lsf-pc@lists.linux-foundation.org" , "rwheeler@redhat.com" , Christoph Hellwig , "frederick.knight@netapp.com" , "zach.brown@ni.com" 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 Bart, > * Copying must be supported not only within a single storage device but > also between storage devices. Identifying which devices to permit copies between has been challenging. That has since been addressed in T10. > * VMware, which uses XCOPY (with a one-byte length ID, aka LID1). I don't think LID1 vs LID4 is particularly interesting for the Linux use case. It's just an additional command tag since the copy manager is a third party. > * Microsoft, which uses ODX (aka LID4 because it has a four-byte length > ID). Microsoft uses the token commands. -- Martin K. Petersen Oracle Linux Engineering _______________________________________________ linux-nvme mailing list linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme