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-#
-# Ftape configuration
-#
-config ZFTAPE
- tristate "Zftape, the VFS interface"
- depends on FTAPE
- ---help---
- Normally, you want to say Y or M. DON'T say N here or you
- WON'T BE ABLE TO USE YOUR FLOPPY TAPE DRIVE.
-
- The ftape module itself no longer contains the routines necessary
- to interface with the kernel VFS layer (i.e. to actually write data
- to and read data from the tape drive). Instead the file system
- interface (i.e. the hardware independent part of the driver) has
- been moved to a separate module.
-
- To compile this driver as a module, choose M here: the
- module will be called zftape.
-
- Regardless of whether you say Y or M here, an additional runtime
- loadable module called `zft-compressor' which contains code to
- support user transparent on-the-fly compression based on Ross
- William's lzrw3 algorithm will be produced. If you have enabled the
- kernel module loader (i.e. have said Y to "Kernel module loader
- support", above) then `zft-compressor' will be loaded
- automatically by zftape when needed.
-
- Despite its name, zftape does NOT use compression by default.
-
-config ZFT_DFLT_BLK_SZ
- int "Default block size"
- depends on ZFTAPE
- default "10240"
- ---help---
- If unsure leave this at its default value, i.e. 10240. Note that
- you specify only the default block size here. The block size can be
- changed at run time using the MTSETBLK tape operation with the
- MTIOCTOP ioctl (i.e. with "mt -f /dev/qft0 setblk #BLKSZ" from the
- shell command line).
-
- The probably most striking difference between zftape and previous
- versions of ftape is the fact that all data must be written or read
- in multiples of a fixed block size. The block size defaults to
- 10240 which is what GNU tar uses. The values for the block size
- should be either 1 or multiples of 1024 up to a maximum value of
- 63488 (i.e. 62 K). If you specify `1' then zftape's builtin
- compression will be disabled.
-
- Reasonable values are `10240' (GNU tar's default block size),
- `5120' (afio's default block size), `32768' (default block size some
- backup programs assume for SCSI tape drives) or `1' (no restriction
- on block size, but disables builtin compression).
-
-comment "The compressor will be built as a module only!"
- depends on FTAPE && ZFTAPE
-
-config ZFT_COMPRESSOR
- tristate
- depends on FTAPE!=n && ZFTAPE!=n
- default m
-
-config FT_NR_BUFFERS
- int "Number of ftape buffers (EXPERIMENTAL)"
- depends on FTAPE && EXPERIMENTAL
- default "3"
- help
- Please leave this at `3' unless you REALLY know what you are doing.
- It is not necessary to change this value. Values below 3 make the
- proper use of ftape impossible, values greater than 3 are a waste of
- memory. You can change the amount of DMA memory used by ftape at
- runtime with "mt -f /dev/qft0 setdrvbuffer #NUMBUFFERS". Each buffer
- wastes 32 KB of memory. Please note that this memory cannot be
- swapped out.
-
-config FT_PROC_FS
- bool "Enable procfs status report (+2kb)"
- depends on FTAPE && PROC_FS
- ---help---
- Optional. Saying Y will result in creation of a directory
- `/proc/ftape' under the /proc file system. The files can be viewed
- with your favorite pager (i.e. use "more /proc/ftape/history" or
- "less /proc/ftape/history" or simply "cat /proc/ftape/history"). The
- file will contain some status information about the inserted
- cartridge, the kernel driver, your tape drive, the floppy disk
- controller and the error history for the most recent use of the
- kernel driver. Saying Y will enlarge the size of the ftape driver
- by approximately 2 KB.
-
- WARNING: When compiling ftape as a module (i.e. saying M to "Floppy
- tape drive") it is dangerous to use ftape's /proc file system
- interface. Accessing `/proc/ftape' while the module is unloaded will
- result in a kernel Oops. This cannot be fixed from inside ftape.
-
-choice
- prompt "Debugging output"
- depends on FTAPE
- default FT_NORMAL_DEBUG
-
-config FT_NORMAL_DEBUG
- bool "Normal"
- ---help---
- This option controls the amount of debugging output the ftape driver
- is ABLE to produce; it does not increase or diminish the debugging
- level itself. If unsure, leave this at its default setting,
- i.e. choose "Normal".
-
- Ftape can print lots of debugging messages to the system console
- resp. kernel log files. Reducing the amount of possible debugging
- output reduces the size of the kernel module by some KB, so it might
- be a good idea to use "None" for emergency boot floppies.
-
- If you want to save memory then the following strategy is
- recommended: leave this option at its default setting "Normal" until
- you know that the driver works as expected, afterwards reconfigure
- the kernel, this time specifying "Reduced" or "None" and recompile
- and install the kernel as usual. Note that choosing "Excessive"
- debugging output does not increase the amount of debugging output
- printed to the console but only makes it possible to produce
- "Excessive" debugging output.
-
- Please read <file:Documentation/ftape.txt> for a short description
- how to control the amount of debugging output.
-
-config FT_FULL_DEBUG
- bool "Excessive"
- help
- Extremely verbose output for driver debugging purposes.
-
-config FT_NO_TRACE
- bool "Reduced"
- help
- Reduced tape driver debugging output.
-
-config FT_NO_TRACE_AT_ALL
- bool "None"
- help
- Suppress all debugging output from the tape drive.
-
-endchoice
-
-comment "Hardware configuration"
- depends on FTAPE
-
-choice
- prompt "Floppy tape controllers"
- depends on FTAPE
- default FT_STD_FDC
-
-config FT_STD_FDC
- bool "Standard"
- ---help---
- Only change this setting if you have a special controller. If you
- didn't plug any add-on card into your computer system but just
- plugged the floppy tape cable into the already existing floppy drive
- controller then you don't want to change the default setting,
- i.e. choose "Standard".
-
- Choose "MACH-2" if you have a Mountain Mach-2 controller.
- Choose "FC-10/FC-20" if you have a Colorado FC-10 or FC-20
- controller.
- Choose "Alt/82078" if you have another controller that is located at
- an IO base address different from the standard floppy drive
- controller's base address of `0x3f0', or uses an IRQ (interrupt)
- channel different from `6', or a DMA channel different from
- `2'. This is necessary for any controller card that is based on
- Intel's 82078 FDC such as Seagate's, Exabyte's and Iomega's "high
- speed" controllers.
-
- If you choose something other than "Standard" then please make
- sure that the settings for the IO base address and the IRQ and DMA
- channel in the configuration menus below are correct. Use the manual
- of your tape drive to determine the correct settings!
-
- If you are already successfully using your tape drive with another
- operating system then you definitely should use the same settings
- for the IO base, the IRQ and DMA channel that have proven to work
- with that other OS.
-
- Note that this menu lets you specify only the default setting for
- the hardware setup. The hardware configuration can be changed at
- boot time (when ftape is compiled into the kernel, i.e. if you
- have said Y to "Floppy tape drive") or module load time (i.e. if you
- have said M to "Floppy tape drive").
-
- Please read also the file <file:Documentation/ftape.txt> which
- contains a short description of the parameters that can be set at
- boot or load time. If you want to use your floppy tape drive on a
- PCI-bus based system, please read the file
- <file:drivers/char/ftape/README.PCI>.
-
-config FT_MACH2
- bool "MACH-2"
-
-config FT_PROBE_FC10
- bool "FC-10/FC-20"
-
-config FT_ALT_FDC
- bool "Alt/82078"
-
-endchoice
-
-comment "Consult the manuals of your tape drive for the correct settings!"
- depends on FTAPE && !FT_STD_FDC
-
-config FT_FDC_BASE
- hex "IO base of the floppy disk controller"
- depends on FTAPE && !FT_STD_FDC
- default "0"
- ---help---
- You don't need to specify a value if the following default
- settings for the base IO address are correct:
- <<< MACH-2 : 0x1E0 >>>
- <<< FC-10/FC-20: 0x180 >>>
- <<< Secondary : 0x370 >>>
- Secondary refers to a secondary FDC controller like the "high speed"
- controllers delivered by Seagate or Exabyte or Iomega's Ditto Dash.
- Please make sure that the setting for the IO base address
- specified here is correct. USE THE MANUAL OF YOUR TAPE DRIVE OR
- CONTROLLER CARD TO DETERMINE THE CORRECT SETTING. If you are already
- successfully using the tape drive with another operating system then
- you definitely should use the same settings for the IO base that has
- proven to work with that other OS.
-
- Note that this menu lets you specify only the default setting for
- the IO base. The hardware configuration can be changed at boot time
- (when ftape is compiled into the kernel, i.e. if you specified Y to
- "Floppy tape drive") or module load time (i.e. if you have said M to
- "Floppy tape drive").
-
- Please read also the file <file:Documentation/ftape.txt> which
- contains a short description of the parameters that can be set at
- boot or load time.
-
-config FT_FDC_IRQ
- int "IRQ channel of the floppy disk controller"
- depends on FTAPE && !FT_STD_FDC
- default "0"
- ---help---
- You don't need to specify a value if the following default
- settings for the interrupt channel are correct:
- <<< MACH-2 : 6 >>>
- <<< FC-10/FC-20: 9 >>>
- <<< Secondary : 6 >>>
- Secondary refers to secondary a FDC controller like the "high speed"
- controllers delivered by Seagate or Exabyte or Iomega's Ditto Dash.
- Please make sure that the setting for the IO base address
- specified here is correct. USE THE MANUAL OF YOUR TAPE DRIVE OR
- CONTROLLER CARD TO DETERMINE THE CORRECT SETTING. If you are already
- successfully using the tape drive with another operating system then
- you definitely should use the same settings for the IO base that has
- proven to work with that other OS.
-
- Note that this menu lets you specify only the default setting for
- the IRQ channel. The hardware configuration can be changed at boot
- time (when ftape is compiled into the kernel, i.e. if you said Y to
- "Floppy tape drive") or module load time (i.e. if you said M to
- "Floppy tape drive").
-
- Please read also the file <file:Documentation/ftape.txt> which
- contains a short description of the parameters that can be set at
- boot or load time.
-
-config FT_FDC_DMA
- int "DMA channel of the floppy disk controller"
- depends on FTAPE && !FT_STD_FDC
- default "0"
- ---help---
- You don't need to specify a value if the following default
- settings for the DMA channel are correct:
- <<< MACH-2 : 2 >>>
- <<< FC-10/FC-20: 3 >>>
- <<< Secondary : 2 >>>
- Secondary refers to a secondary FDC controller like the "high speed"
- controllers delivered by Seagate or Exabyte or Iomega's Ditto Dash.
- Please make sure that the setting for the IO base address
- specified here is correct. USE THE MANUAL OF YOUR TAPE DRIVE OR
- CONTROLLER CARD TO DETERMINE THE CORRECT SETTING. If you are already
- successfully using the tape drive with another operating system then
- you definitely should use the same settings for the IO base that has
- proven to work with that other OS.
-
- Note that this menu lets you specify only the default setting for
- the DMA channel. The hardware configuration can be changed at boot
- time (when ftape is compiled into the kernel, i.e. if you said Y to
- "Floppy tape drive") or module load time (i.e. if you said M to
- "Floppy tape drive").
-
- Please read also the file <file:Documentation/ftape.txt> which
- contains a short description of the parameters that can be set at
- boot or load time.
-
-config FT_FDC_THR
- int "Default FIFO threshold (EXPERIMENTAL)"
- depends on FTAPE && EXPERIMENTAL
- default "8"
- help
- Set the FIFO threshold of the FDC. If this is higher the DMA
- controller may serve the FDC after a higher latency time. If this is
- lower, fewer DMA transfers occur leading to less bus contention.
- You may try to tune this if ftape annoys you with "reduced data
- rate because of excessive overrun errors" messages. However, this
- doesn't seem to have too much effect.
-
- If unsure, don't touch the initial value, i.e. leave it at "8".
-
-config FT_FDC_MAX_RATE
- int "Maximal data rate to use (EXPERIMENTAL)"
- depends on FTAPE && EXPERIMENTAL
- default "2000"
- ---help---
- With some motherboard/FDC combinations ftape will not be able to
- run your FDC/tape drive combination at the highest available
- speed. If this is the case you'll encounter "reduced data rate
- because of excessive overrun errors" messages and lots of retries
- before ftape finally decides to reduce the data rate.
-
- In this case it might be desirable to tell ftape beforehand that
- it need not try to run the tape drive at the highest available
- speed. If unsure, leave this disabled, i.e. leave it at 2000
- bits/sec.
-
-config FT_ALPHA_CLOCK
- int "CPU clock frequency of your DEC Alpha" if ALPHA
- depends on FTAPE
- default "0"
- help
- On some DEC Alpha machines the CPU clock frequency cannot be
- determined automatically, so you need to specify it here ONLY if
- running a DEC Alpha, otherwise this setting has no effect.
-