[S390] zcrypt driver Makefile, Kconfig and monolithic build.

The Makefile and Kconfig changes should be obvious. The monolithic
build option is there to create an old-style z90crypt module for
backward compatability to older distributions.

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/drivers/s390/Kconfig b/drivers/s390/Kconfig
index f0ea550d39bc..bc4261e8b606 100644
--- a/drivers/s390/Kconfig
+++ b/drivers/s390/Kconfig
@@ -217,4 +217,25 @@ endmenu
 
 menu "Cryptographic devices"
 
+config ZCRYPT
+        tristate "Support for PCI-attached cryptographic adapters"
+        select ZCRYPT_MONOLITHIC if ZCRYPT="y"
+        default "m"
+        help
+          Select this option if you want to use a PCI-attached cryptographic
+          adapter like:
+          + PCI Cryptographic Accelerator (PCICA)
+          + PCI Cryptographic Coprocessor (PCICC)
+          + PCI-X Cryptographic Coprocessor (PCIXCC)
+          + Crypto Express2 Coprocessor (CEX2C)
+          + Crypto Express2 Accelerator (CEX2A)
+
+config ZCRYPT_MONOLITHIC
+        bool "Monolithic zcrypt module"
+        depends on ZCRYPT="m"
+        help
+          Select this option if you want to have a single module z90crypt.ko
+          that contains all parts of the crypto device driver (ap bus,
+          request router and all the card drivers).
+
 endmenu