s390/hmcdrv: HMC drive CD/DVD access
This device driver allows accessing a HMC drive CD/DVD-ROM.
It can be used in a LPAR and z/VM environment.
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Ralf Hoppe <rhoppe@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/char/Kconfig b/drivers/s390/char/Kconfig
index 71bf959..dc24ecf 100644
--- a/drivers/s390/char/Kconfig
+++ b/drivers/s390/char/Kconfig
@@ -102,6 +102,19 @@
want for inform other people about your kernel panics,
need this feature and intend to run your kernel in LPAR.
+config HMC_DRV
+ def_tristate m
+ prompt "Support for file transfers from HMC drive CD/DVD-ROM"
+ depends on 64BIT
+ select CRC16
+ help
+ This option enables support for file transfers from a Hardware
+ Management Console (HMC) drive CD/DVD-ROM. It is available as a
+ module, called 'hmcdrv', and also as kernel built-in. There is one
+ optional parameter for this module: cachesize=N, which modifies the
+ transfer cache size from it's default value 0.5MB to N bytes. If N
+ is zero, then no caching is performed.
+
config S390_TAPE
def_tristate m
prompt "S/390 tape device support"