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diff --git a/Documentation/scsi/scsi.txt b/Documentation/scsi/scsi.txt deleted file mode 100644 index 3d99d38cb62a..000000000000 --- a/Documentation/scsi/scsi.txt +++ /dev/null @@ -1,44 +0,0 @@ -SCSI subsystem documentation -============================ -The Linux Documentation Project (LDP) maintains a document describing -the SCSI subsystem in the Linux kernel (lk) 2.4 series. See: -http://www.tldp.org/HOWTO/SCSI-2.4-HOWTO . The LDP has single -and multiple page HTML renderings as well as postscript and pdf. -It can also be found at: -http://web.archive.org/web/*/http://www.torque.net/scsi/SCSI-2.4-HOWTO - -Notes on using modules in the SCSI subsystem -============================================ -The scsi support in the linux kernel can be modularized in a number of -different ways depending upon the needs of the end user. To understand -your options, we should first define a few terms. - -The scsi-core (also known as the "mid level") contains the core of scsi -support. Without it you can do nothing with any of the other scsi drivers. -The scsi core support can be a module (scsi_mod.o), or it can be built into -the kernel. If the core is a module, it must be the first scsi module -loaded, and if you unload the modules, it will have to be the last one -unloaded. In practice the modprobe and rmmod commands (and "autoclean") -will enforce the correct ordering of loading and unloading modules in -the SCSI subsystem. - -The individual upper and lower level drivers can be loaded in any order -once the scsi core is present in the kernel (either compiled in or loaded -as a module). The disk driver (sd_mod.o), cdrom driver (sr_mod.o), -tape driver ** (st.o) and scsi generics driver (sg.o) represent the upper -level drivers to support the various assorted devices which can be -controlled. You can for example load the tape driver to use the tape drive, -and then unload it once you have no further need for the driver (and release -the associated memory). - -The lower level drivers are the ones that support the individual cards that -are supported for the hardware platform that you are running under. Those -individual cards are often called Host Bus Adapters (HBAs). For example the -aic7xxx.o driver is used to control all recent SCSI controller cards from -Adaptec. Almost all lower level drivers can be built either as modules or -built into the kernel. - - -** There is a variant of the st driver for controlling OnStream tape - devices. Its module name is osst.o . - |