From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Ian Jackson <Ian.Jackson@eu.citrix.com>
Cc: jgross@suse.com, xen-devel@lists.xen.org, annie.li@oracle.com,
Paul.Durrant@citrix.com, David Vrabel <david.vrabel@citrix.com>,
roger.pau@citrix.com
Subject: Re: [RFC PATCH] blkif.h: document scsi/0x12/0x83 node
Date: Tue, 22 Mar 2016 12:38:38 -0400 [thread overview]
Message-ID: <20160322163838.GC18504@char.us.oracle.com> (raw)
In-Reply-To: <22257.28343.956713.417277@mariner.uk.xensource.com>
On Tue, Mar 22, 2016 at 04:11:35PM +0000, Ian Jackson wrote:
> Konrad Rzeszutek Wilk writes ("Re: [Xen-devel] [RFC PATCH] blkif.h: document scsi/0x12/0x83 node"):
> > > I don't think this is a sterile academic conversation which would (if
> > > satisfactorily answered) have no real implications. Rather, if we
> > > understood the use case properly, there would probably be implications
> > > for whether how this functionality ought to be exposed via the libxl
> > > API; whether blkfront should consume this information by default; and
> > > so on.
> >
> > Lets take one step back.
> >
> > What is the problem with documenting an existing use-case in blkif.h?
> >
> > Regardless of whether it is viewed "legacy" by some folks and by others
> > drivers it is still in use?
>
> Firstly, if you want to document it then the documentation needs to
> explain what the semantics are supposed to be. At the moment I'm not
> sure I see a correct and useful set of semantics. I had a go at
> writing something but several of the things I wrote in it seem to have
> been contradicted by comments from Bob Liu and others.
>
> It is difficult to write a suitable document. Ideally the document
> would give an example use case. But it appears that the only use case
> is super secret!
:-)
>
> Secondly, apparently this is not regarded as deprecated. Bob Liu
> says he plans to add support for it to blkfront.
One step at a time. First lets document this XenStore key in blkif.h
so it is know what it does and the semantics of it.
>
> Ian.
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next prev parent reply other threads:[~2016-03-22 16:38 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-16 3:09 [RFC PATCH] blkif.h: document scsi/0x12/0x83 node Bob Liu
2016-03-16 7:16 ` Konrad Rzeszutek Wilk
2016-03-16 12:36 ` Ian Jackson
2016-03-16 13:59 ` Bob Liu
2016-03-16 14:07 ` Paul Durrant
2016-03-17 5:04 ` Bob Liu
2016-03-16 14:32 ` David Vrabel
2016-03-17 5:07 ` Bob Liu
2016-03-17 11:12 ` Ian Jackson
2016-03-17 11:18 ` David Vrabel
2016-03-17 11:20 ` Ian Jackson
2016-03-22 12:55 ` Bob Liu
2016-03-22 13:41 ` David Vrabel
2016-03-22 14:10 ` Konrad Rzeszutek Wilk
2016-03-22 14:38 ` David Vrabel
2016-03-22 14:43 ` Paul Durrant
2016-03-22 15:09 ` Ian Jackson
2016-03-22 15:25 ` Paul Durrant
2016-03-22 16:14 ` Ian Jackson
2016-03-22 16:50 ` Konrad Rzeszutek Wilk
2016-03-22 17:39 ` Paul Durrant
2016-03-22 15:12 ` Ian Jackson
2016-03-22 15:27 ` Konrad Rzeszutek Wilk
2016-03-22 16:11 ` Ian Jackson
2016-03-22 16:38 ` Konrad Rzeszutek Wilk [this message]
2016-03-22 16:25 ` Jan Beulich
2016-03-16 14:33 ` Ian Jackson
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