From: Stefan Richter <stefanr@s5r6.in-berlin.de>
To: Rob Landley <rob@landley.net>
Cc: David Newall <david@davidnewall.com>,
Matthew Wilcox <matthew@wil.cx>,
linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
Suparna Bhattacharya <suparna@in.ibm.com>,
Nick Piggin <piggin@cyberone.com.au>
Subject: Re: What still uses the block layer?
Date: Mon, 15 Oct 2007 07:44:19 +0200 [thread overview]
Message-ID: <4712FE33.3000400@s5r6.in-berlin.de> (raw)
In-Reply-To: <200710141836.55211.rob@landley.net>
Rob Landley wrote:
> I was at least attempting to ask a serious question.
...
> Actually, I was going through Documentation/block thinking about making a
> 00-INDEX for it, but my earlier questions of the scsi guys left me with the
> impression that the block layer is _not_ used by the SCSI layer.
Ah, so it was about your documentation work. I already forgot the
context of your previous inquiries. Alas the tone of them already did
some damage, leading to responses like these.
...
> since
> every non-embedded modern storage device I'm aware of has been consumed by
> the SCSI layer (despite none of them actually having a discernably closer
> relationship to SCSI than ATA did)
...
The Linux SCSI subsystems don't consume, they provide services; nowadays
not only for SCSI hardware and SCSI protocols but also for a number of
subsystems whose tasks are similar enough to SCSI subsystems to make the
SCSI core and upper SCSI layer useful to them too.
BTW:
| Now that IDE disks have been rerouted through the scsi layer, SATA goes
| through the scsi layer, USB goes through the scsi layer, firewire goes
| through the scsi layer...
As a side note, SBP-2 is a SCSI transport protocol, hence ieee1394/sbp2
and firewire/fw-sbp2 are Linux SCSI low-level drivers. Anything else
would be just wrong and infeasible in this particular case.
--
Stefan Richter
-=====-=-=== =-=- -====
http://arcgraph.de/sr/
next prev parent reply other threads:[~2007-10-15 5:45 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-12 1:11 Rob Landley
2007-10-13 22:05 ` Matthew Wilcox
2007-10-14 5:54 ` David Newall
2007-10-14 17:46 ` Stefan Richter
2007-10-14 22:35 ` Tilman Schmidt
2007-10-14 23:36 ` Rob Landley
2007-10-15 1:23 ` Neil Brown
2007-10-15 5:44 ` Stefan Richter [this message]
2007-10-15 9:26 ` Rob Landley
2007-10-15 16:08 ` Matthew Wilcox
2007-10-15 17:10 ` Stefan Richter
2007-10-16 3:06 ` david
2007-10-16 5:56 ` Stefan Richter
2007-10-16 10:19 ` Alan Cox
2007-10-16 19:54 ` david
2007-10-16 19:54 ` Matthew Wilcox
2007-10-16 20:18 ` Stefan Richter
2007-10-16 20:34 ` Theodore Tso
2007-10-16 20:56 ` Stefan Richter
2007-10-16 20:55 ` david
2007-10-16 21:49 ` Alan Cox
2007-10-17 9:48 ` Gabor Gombas
2007-10-17 17:23 ` Stefan Richter
2007-10-17 21:04 ` david
2007-10-15 20:29 ` Wilfried Klaebe
2007-10-14 22:24 ` James Bottomley
2007-10-14 23:45 ` Rob Landley
2007-10-15 1:45 ` Theodore Tso
2007-10-15 8:04 ` Rob Landley
2007-10-15 9:06 ` Julian Calaby
2007-10-15 10:08 ` Rob Landley
2007-10-15 17:33 ` Greg KH
2007-10-16 2:54 ` david
2007-10-16 4:04 ` Matthew Wilcox
2007-10-16 4:11 ` Arjan van de Ven
2007-10-16 4:15 ` david
2007-10-16 4:21 ` Greg KH
2007-10-16 5:00 ` david
[not found] ` <646765f40710150327i78519a0fvaea7a83d5975b180@mail.gmail.com>
[not found] ` <200710151511.29748.rob@landley.net>
2007-10-15 23:49 ` Julian Calaby
2007-10-15 10:32 ` Loïc Grenié
2007-10-15 21:09 ` Rob Landley
2007-10-15 11:19 ` Neil Brown
2007-10-15 21:34 ` Rob Landley
2007-10-15 21:46 ` Jeff Garzik
2007-10-15 22:01 ` Alan Cox
2007-10-15 23:41 ` Neil Brown
2007-10-16 2:12 ` david
2007-10-15 13:21 ` Theodore Tso
2007-10-15 13:29 ` Alan Cox
2007-10-15 13:35 ` Theodore Tso
2007-10-15 17:44 ` Jeff Garzik
2007-10-15 14:46 ` Douglas Gilbert
2007-10-16 2:51 ` david
2007-10-15 13:37 ` OOM killer gripe (was Re: What still uses the block layer?) Nick Piggin
2007-10-15 9:52 ` Rob Landley
2007-10-15 15:08 ` Nick Piggin
2007-10-16 6:22 ` David Newall
2007-10-20 9:48 ` Pavel Machek
2007-10-15 11:40 ` Theodore Tso
2007-10-20 9:50 ` Pavel Machek
2007-10-16 3:55 ` Eric W. Biederman
2007-10-16 4:10 ` david
2007-10-16 4:45 ` Eric W. Biederman
2007-10-16 6:59 ` Nick Piggin
2007-10-16 4:38 ` Eric W. Biederman
2007-10-16 6:38 ` Rob Landley
2007-10-16 9:31 ` Eric W. Biederman
2007-10-16 10:28 ` Alan Cox
2007-10-16 23:59 ` Rob Landley
2007-10-16 7:34 ` Nick Piggin
2007-10-18 13:00 ` Rogier Wolff
2007-10-19 6:49 ` Rob Landley
2007-10-19 7:21 ` Rogier Wolff
2007-10-16 20:37 ` Andrew Morton
2007-10-17 5:34 ` What still uses the block layer? Valdis.Kletnieks
2007-10-17 6:07 ` david
2007-10-15 6:00 ` Greg KH
2007-10-15 8:36 ` Rob Landley
2007-10-15 13:08 ` Alan Cox
2007-10-15 14:00 ` Arjan van de Ven
2007-10-15 18:56 ` Matthew Garrett
2007-10-15 17:25 ` Greg KH
2007-10-15 18:00 ` Matthew Wilcox
2007-10-15 18:46 ` Jeff Garzik
2007-10-16 6:33 ` Stefan Richter
2007-10-17 23:43 ` Bill Davidsen
2007-10-15 22:54 ` Rob Landley
2007-10-15 8:52 ` Christoph Hellwig
2007-10-15 13:10 ` James Bottomley
2007-10-15 21:51 ` Rob Landley
2007-10-15 0:45 ` Luben Tuikov
2007-10-15 6:51 ` Rob Landley
2007-10-15 8:37 ` Luben Tuikov
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