# Block device driver configuration
#
+if BLOCK
+
menu "Block devices"
config BLK_DEV_FD
config PARIDE
tristate "Parallel port IDE device support"
- depends on PARPORT
+ depends on PARPORT_PC
---help---
There are many external CD-ROM and disk devices that connect through
your computer's parallel port. Most of them are actually IDE devices
module will be called umem.
The umem driver has not yet been allocated a MAJOR number, so
- one is chosen dynamically. Use "devfs" or look in /proc/devices
- for the device number
+ one is chosen dynamically.
config BLK_DEV_UBD
bool "Virtual block device"
thus say N here.
config BLK_DEV_RAM_COUNT
- int "Default number of RAM disks" if BLK_DEV_RAM
+ int "Default number of RAM disks"
default "16"
+ depends on BLK_DEV_RAM
help
The default value is 16 RAM disks. Change this if you know what
are doing. If you boot from a filesystem that needs to be extracted
what are you doing. If you are using IBM S/390, then set this to
8192.
+config BLK_DEV_RAM_BLOCKSIZE
+ int "Default RAM disk block size (bytes)"
+ depends on BLK_DEV_RAM
+ default "1024"
+ help
+ The default value is 1024 bytes. PAGE_SIZE is a much more
+ efficient choice however. The default is kept to ensure initrd
+ setups function - apparently needed by the rd_load_image routine
+ that supposes the filesystem in the image uses a 1024 blocksize.
+
config BLK_DEV_INITRD
- bool "Initial RAM disk (initrd) support"
- depends on BLK_DEV_RAM=y
+ bool "Initial RAM filesystem and RAM disk (initramfs/initrd) support"
+ depends on BROKEN || !FRV
help
- The initial RAM disk is a RAM disk that is loaded by the boot loader
- (loadlin or lilo) and that is mounted as root before the normal boot
- procedure. It is typically used to load modules needed to mount the
- "real" root file system, etc. See <file:Documentation/initrd.txt>
- for details.
+ The initial RAM filesystem is a ramfs which is loaded by the
+ boot loader (loadlin or lilo) and that is mounted as root
+ before the normal boot procedure. It is typically used to
+ load modules needed to mount the "real" root file system,
+ etc. See <file:Documentation/initrd.txt> for details.
+
+ If RAM disk support (BLK_DEV_RAM) is also included, this
+ also enables initial RAM disk (initrd) support.
config CDROM_PKTCDVD
This controls the maximum number of active concurrent packets. More
concurrent packets can increase write performance, but also require
more memory. Each concurrent packet will require approximately 64Kb
- of non-swappable kernel memory, memory which will be allocated at
- pktsetup time.
+ of non-swappable kernel memory, memory which will be allocated when
+ a disc is opened for writing.
config CDROM_PKTCDVD_WCACHE
- bool "Enable write caching"
- depends on CDROM_PKTCDVD
+ bool "Enable write caching (EXPERIMENTAL)"
+ depends on CDROM_PKTCDVD && EXPERIMENTAL
help
If enabled, write caching will be set for the CD-R/W device. For now
this option is dangerous unless the CD-RW media is known good, as we
devices like the Coraid EtherDrive (R) Storage Blade.
endmenu
+
+endif