On Fri, Apr 06, 2018 at 01:09:08PM -0400, Douglas Gilbert wrote: > So you found a document that outlines NVMe's architecture! Could you > share the url (no marketing BS, please)?
You can always take a look at the actual spec: http://nvmexpress.org/wp-content/uploads/NVM-Express-1_3a-20171024_ratified.pdf But in summary: while in SCSI your Nexus for any command is with the logic unit, in NVMe it is with the controller. Many admin commands operate on the whole controller. > And a serious question ... How would you map NVMe's (in Linux) > subsystem number, controller device minor number, CNTLID field > (Identify ctl response) and namespace id onto the SCSI subsystem's > h:c:t:l ? I wouldn't because the scheme already doesn't make any sense for SCSI, nevermind should we try to map NVMe into a scsi specific worldview. > > Doug Gilbert > ---end quoted text---