On 05/21/2015 07:07 PM, George Dunlap wrote:
We have several outstanding patch series which add devices that have
two levels: a controller and individual devices attached to that
controller.
In the interest of consistency, this patch introduces a section that
sketches out a template for interfaces for such devices.
Signed-off-by: George Dunlap <george.dun...@eu.citrix.com>
---
CC: Ian Campbell <ian.campb...@citrix.com>
CC: Ian Jackson <ian.jack...@citrix.com>
CC: Wei Liu <wei.l...@citrix.com>
CC: Juergen Gross <jgr...@suse.com>
CC: Chun Yan Liu <cy...@suse.com>
CC: Olaf Hering <o...@aepfle.de>
So, this is definitely RFC -- I tried to spec things out in a way that
made sense, but I often just chose something that I thought would be a
sensible starting point for discussion.
This spec looks a lot more like the PVUSB spec than the PVSCSI spec,
in part because I think the PVUSB spec has already had a lot more
thought that's gone into it.
A couple of random points to discuss:
* Calling things "controllers", using <type>ctrl for the device name,
and using "ctrl" as the field name for the devid of the controller
in the individual devices.
Hmm, what about "device group" (<type>devgoup)? In the scsi world
"controller" would be one level higher in the hierarchy. And the scsi
controller is at least visible in the configuration syntax "h:c:t:l".
Using "controller" for the "c" in this item and for the "t" internally
could lead to confusion.
Juergen
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