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scsi: docs: convert scsi.txt to ReST
Link: https://lore.kernel.org/r/c617b37769a82901def0fed3d236a25995c4e160.1583136624.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
Martin K. Petersen
parent
a0b1643bee
commit
b7223d9bde
@ -37,5 +37,6 @@ Linux SCSI Subsystem
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scsi-generic
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scsi_mid_low_api
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scsi-parameters
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scsi
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scsi_transport_srp/figures
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@ -1,44 +1,47 @@
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.. SPDX-License-Identifier: GPL-2.0
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============================
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SCSI subsystem documentation
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============================
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The Linux Documentation Project (LDP) maintains a document describing
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the SCSI subsystem in the Linux kernel (lk) 2.4 series. See:
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http://www.tldp.org/HOWTO/SCSI-2.4-HOWTO . The LDP has single
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and multiple page HTML renderings as well as postscript and pdf.
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It can also be found at:
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http://web.archive.org/web/*/http://www.torque.net/scsi/SCSI-2.4-HOWTO
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http://web.archive.org/web/%2E/http://www.torque.net/scsi/SCSI-2.4-HOWTO
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Notes on using modules in the SCSI subsystem
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============================================
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The scsi support in the linux kernel can be modularized in a number of
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The scsi support in the linux kernel can be modularized in a number of
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different ways depending upon the needs of the end user. To understand
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your options, we should first define a few terms.
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The scsi-core (also known as the "mid level") contains the core of scsi
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The scsi-core (also known as the "mid level") contains the core of scsi
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support. Without it you can do nothing with any of the other scsi drivers.
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The scsi core support can be a module (scsi_mod.o), or it can be built into
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the kernel. If the core is a module, it must be the first scsi module
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loaded, and if you unload the modules, it will have to be the last one
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the kernel. If the core is a module, it must be the first scsi module
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loaded, and if you unload the modules, it will have to be the last one
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unloaded. In practice the modprobe and rmmod commands (and "autoclean")
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will enforce the correct ordering of loading and unloading modules in
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the SCSI subsystem.
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The individual upper and lower level drivers can be loaded in any order
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The individual upper and lower level drivers can be loaded in any order
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once the scsi core is present in the kernel (either compiled in or loaded
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as a module). The disk driver (sd_mod.o), cdrom driver (sr_mod.o),
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tape driver ** (st.o) and scsi generics driver (sg.o) represent the upper
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level drivers to support the various assorted devices which can be
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controlled. You can for example load the tape driver to use the tape drive,
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tape driver [1]_ (st.o) and scsi generics driver (sg.o) represent the upper
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level drivers to support the various assorted devices which can be
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controlled. You can for example load the tape driver to use the tape drive,
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and then unload it once you have no further need for the driver (and release
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the associated memory).
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The lower level drivers are the ones that support the individual cards that
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are supported for the hardware platform that you are running under. Those
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individual cards are often called Host Bus Adapters (HBAs). For example the
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aic7xxx.o driver is used to control all recent SCSI controller cards from
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Adaptec. Almost all lower level drivers can be built either as modules or
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aic7xxx.o driver is used to control all recent SCSI controller cards from
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Adaptec. Almost all lower level drivers can be built either as modules or
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built into the kernel.
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** There is a variant of the st driver for controlling OnStream tape
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devices. Its module name is osst.o .
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.. [1] There is a variant of the st driver for controlling OnStream tape
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devices. Its module name is osst.o .
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@ -33,7 +33,7 @@ config SCSI
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Channel, and FireWire storage.
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To compile this driver as a module, choose M here and read
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<file:Documentation/scsi/scsi.txt>.
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<file:Documentation/scsi/scsi.rst>.
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The module will be called scsi_mod.
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However, do not compile this as a module if your root file system
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@ -79,7 +79,7 @@ config BLK_DEV_SD
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CD-ROMs.
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To compile this driver as a module, choose M here and read
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<file:Documentation/scsi/scsi.txt>.
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<file:Documentation/scsi/scsi.rst>.
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The module will be called sd_mod.
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Do not compile this driver as a module if your root file system
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@ -98,7 +98,7 @@ config CHR_DEV_ST
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for SCSI CD-ROMs.
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To compile this driver as a module, choose M here and read
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<file:Documentation/scsi/scsi.txt>. The module will be called st.
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<file:Documentation/scsi/scsi.rst>. The module will be called st.
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config BLK_DEV_SR
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tristate "SCSI CDROM support"
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@ -112,7 +112,7 @@ config BLK_DEV_SR
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Make sure to say Y or M to "ISO 9660 CD-ROM file system support".
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To compile this driver as a module, choose M here and read
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<file:Documentation/scsi/scsi.txt>.
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<file:Documentation/scsi/scsi.rst>.
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The module will be called sr_mod.
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config CHR_DEV_SG
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@ -136,7 +136,7 @@ config CHR_DEV_SG
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<file:Documentation/scsi/scsi-generic.rst> for more information.
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To compile this driver as a module, choose M here and read
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<file:Documentation/scsi/scsi.txt>. The module will be called sg.
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<file:Documentation/scsi/scsi.rst>. The module will be called sg.
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If unsure, say N.
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@ -154,7 +154,7 @@ config CHR_DEV_SCH
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If you want to compile this as a module ( = code which can be
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inserted in and removed from the running kernel whenever you want),
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say M here and read <file:Documentation/kbuild/modules.rst> and
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<file:Documentation/scsi/scsi.txt>. The module will be called ch.o.
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<file:Documentation/scsi/scsi.rst>. The module will be called ch.o.
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If unsure, say N.
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config SCSI_ENCLOSURE
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@ -604,7 +604,7 @@ config FCOE_FNIC
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This is support for the Cisco PCI-Express FCoE HBA.
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To compile this driver as a module, choose M here and read
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<file:Documentation/scsi/scsi.txt>.
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<file:Documentation/scsi/scsi.rst>.
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The module will be called fnic.
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config SCSI_SNIC
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@ -614,7 +614,7 @@ config SCSI_SNIC
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This is support for the Cisco PCI-Express SCSI HBA.
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To compile this driver as a module, choose M here and read
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<file:Documentation/scsi/scsi.txt>.
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<file:Documentation/scsi/scsi.rst>.
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The module will be called snic.
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config SCSI_SNIC_DEBUG_FS
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