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scsi: docs: convert scsi-generic.txt to ReST 

Link: https://lore.kernel.org/r/f57b8ddf30397c2c7213e49634e5e9cbd4246368.1583136624.git.mchehab+huawei@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Mauro Carvalho Chehab 2020-03-02 09:16:03 +01:00 committed by Martin K. Petersen
parent fedd7a4d09
commit d4d79340fb
5 changed files with 50 additions and 32 deletions
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1
Documentation/scsi/index.rst
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@ -34,5 +34,6 @@ Linux SCSI Subsystem
scsi-changer
scsi_eh
scsi_fc_transport
scsi-generic
scsi_transport_srp/figures

75
Documentation/scsi/scsi-generic.txt → Documentation/scsi/scsi-generic.rst
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@ -1,6 +1,11 @@
Notes on Linux SCSI Generic (sg) driver
---------------------------------------
.. SPDX-License-Identifier: GPL-2.0
=======================================
Notes on Linux SCSI Generic (sg) driver
=======================================
20020126
Introduction
============
The SCSI Generic driver (sg) is one of the four "high level" SCSI device
@ -18,7 +23,7 @@ and examples.
Major versions of the sg driver
===============================
There are three major versions of sg found in the linux kernel (lk):
- sg version 1 (original) from 1992 to early 1999 (lk 2.2.5) .
- sg version 1 (original) from 1992 to early 1999 (lk 2.2.5) .
It is based in the sg_header interface structure.
- sg version 2 from lk 2.2.6 in the 2.2 series. It is based on
an extended version of the sg_header interface structure.
@ -29,12 +34,16 @@ There are three major versions of sg found in the linux kernel (lk):
Sg driver documentation
=======================
The most recent documentation of the sg driver is kept at the Linux
Documentation Project's (LDP) site:
http://www.tldp.org/HOWTO/SCSI-Generic-HOWTO
Documentation Project's (LDP) site:
- http://www.tldp.org/HOWTO/SCSI-Generic-HOWTO
This describes the sg version 3 driver found in the lk 2.4 series.
The LDP renders documents in single and multiple page HTML, postscript
and pdf. This document can also be found at:
http://sg.danny.cz/sg/p/sg_v3_ho.html
- http://sg.danny.cz/sg/p/sg_v3_ho.html
Documentation for the version 2 sg driver found in the lk 2.2 series can
be found at http://sg.danny.cz/sg/. A larger version
@ -45,23 +54,27 @@ found at http://www.torque.net/sg/p/original/SCSI-Programming-HOWTO.txt
and in the LDP archives.
A changelog with brief notes can be found in the
/usr/src/linux/include/scsi/sg.h file. Note that the glibc maintainers copy
and edit this file (removing its changelog for example) before placing it
in /usr/include/scsi/sg.h . Driver debugging information and other notes
/usr/src/linux/include/scsi/sg.h file. Note that the glibc maintainers copy
and edit this file (removing its changelog for example) before placing it
in /usr/include/scsi/sg.h . Driver debugging information and other notes
can be found at the top of the /usr/src/linux/drivers/scsi/sg.c file.
A more general description of the Linux SCSI subsystem of which sg is a
A more general description of the Linux SCSI subsystem of which sg is a
part can be found at http://www.tldp.org/HOWTO/SCSI-2.4-HOWTO .
Example code and utilities
==========================
There are two packages of sg utilities:
- sg3_utils for the sg version 3 driver found in lk 2.4
- sg_utils for the sg version 2 (and original) driver found in lk 2.2
========= ==========================================================
sg3_utils for the sg version 3 driver found in lk 2.4
sg_utils for the sg version 2 (and original) driver found in lk 2.2
and earlier
========= ==========================================================
Both packages will work in the lk 2.4 series however sg3_utils offers more
capabilities. They can be found at: http://sg.danny.cz/sg/sg3_utils.html and
capabilities. They can be found at: http://sg.danny.cz/sg/sg3_utils.html and
freecode.com
Another approach is to look at the applications that use the sg driver.
@ -72,30 +85,34 @@ Mapping of Linux kernel versions to sg driver versions
======================================================
Here is a list of linux kernels in the 2.4 series that had new version
of the sg driver:
lk 2.4.0 : sg version 3.1.17
lk 2.4.7 : sg version 3.1.19
lk 2.4.10 : sg version 3.1.20 **
lk 2.4.17 : sg version 3.1.22
** There were 3 changes to sg version 3.1.20 by third parties in the
next six linux kernel versions.
- lk 2.4.0 : sg version 3.1.17
- lk 2.4.7 : sg version 3.1.19
- lk 2.4.10 : sg version 3.1.20 [#]_
- lk 2.4.17 : sg version 3.1.22
For reference here is a list of linux kernels in the 2.2 series that had
.. [#] There were 3 changes to sg version 3.1.20 by third parties in the
next six linux kernel versions.
For reference here is a list of linux kernels in the 2.2 series that had
new version of the sg driver:
lk 2.2.0 : original sg version [with no version number]
lk 2.2.6 : sg version 2.1.31
lk 2.2.8 : sg version 2.1.32
lk 2.2.10 : sg version 2.1.34 [SG_GET_VERSION_NUM ioctl first appeared]
lk 2.2.14 : sg version 2.1.36
lk 2.2.16 : sg version 2.1.38
lk 2.2.17 : sg version 2.1.39
lk 2.2.20 : sg version 2.1.40
- lk 2.2.0 : original sg version [with no version number]
- lk 2.2.6 : sg version 2.1.31
- lk 2.2.8 : sg version 2.1.32
- lk 2.2.10 : sg version 2.1.34 [SG_GET_VERSION_NUM ioctl first appeared]
- lk 2.2.14 : sg version 2.1.36
- lk 2.2.16 : sg version 2.1.38
- lk 2.2.17 : sg version 2.1.39
- lk 2.2.20 : sg version 2.1.40
The lk 2.5 development series has recently commenced and it currently
contains sg version 3.5.23 which is functionally equivalent to sg
version 3.1.22 found in lk 2.4.17 .
version 3.1.22 found in lk 2.4.17.
Douglas Gilbert
26th January 2002
dgilbert@interlog.com

2
MAINTAINERS
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@ -14797,7 +14797,7 @@ M: Doug Gilbert <dgilbert@interlog.com>
L: linux-scsi@vger.kernel.org
W: http://sg.danny.cz/sg
S: Maintained
F: Documentation/scsi/scsi-generic.txt
F: Documentation/scsi/scsi-generic.rst
F: drivers/scsi/sg.c
F: include/scsi/sg.h

2
drivers/scsi/Kconfig
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@ -133,7 +133,7 @@ config CHR_DEV_SG
quality digital reader of audio CDs (<http://www.xiph.org/paranoia/>).
For other devices, it's possible that you'll have to write the
driver software yourself. Please read the file
<file:Documentation/scsi/scsi-generic.txt> for more information.
<file:Documentation/scsi/scsi-generic.rst> for more information.
To compile this driver as a module, choose M here and read
<file:Documentation/scsi/scsi.txt>. The module will be called sg.

2
include/scsi/sg.h
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@ -24,7 +24,7 @@
* http://sg.danny.cz/sg [alternatively check the MAINTAINERS file]
* The documentation for the sg version 3 driver can be found at:
* http://sg.danny.cz/sg/p/sg_v3_ho.html
* Also see: <kernel_source>/Documentation/scsi/scsi-generic.txt
* Also see: <kernel_source>/Documentation/scsi/scsi-generic.rst
*
* For utility and test programs see: http://sg.danny.cz/sg/sg3_utils.html
*/