[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>

3 files changed, 134 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
diff --git a/drivers/s390/crypto/Makefile b/drivers/s390/crypto/Makefile
index 67e75be8e4e4..f0a12d2eb780 100644
--- a/drivers/s390/crypto/Makefile
+++ b/drivers/s390/crypto/Makefile
@@ -2,3 +2,16 @@
 # S/390 crypto devices
 #
 
+ifdef CONFIG_ZCRYPT_MONOLITHIC
+
+z90crypt-objs := zcrypt_mono.o ap_bus.o zcrypt_api.o \
+                zcrypt_pcica.o zcrypt_pcicc.o zcrypt_pcixcc.o zcrypt_cex2a.o
+obj-$(CONFIG_ZCRYPT) += z90crypt.o
+
+else
+
+ap-objs := ap_bus.o
+obj-$(CONFIG_ZCRYPT) += ap.o zcrypt_api.o zcrypt_pcicc.o zcrypt_pcixcc.o
+obj-$(CONFIG_ZCRYPT) += zcrypt_pcica.o zcrypt_cex2a.o
+
+endif
diff --git a/drivers/s390/crypto/zcrypt_mono.c b/drivers/s390/crypto/zcrypt_mono.c
new file mode 100644
index 000000000000..f48b61a6126c
--- /dev/null
+++ b/drivers/s390/crypto/zcrypt_mono.c
@@ -0,0 +1,100 @@
+/*
+ *  linux/drivers/s390/crypto/zcrypt_mono.c
+ *
+ *  zcrypt 2.0.0
+ *
+ *  Copyright (C)  2001, 2006 IBM Corporation
+ *  Author(s): Robert Burroughs
+ *             Eric Rossman (edrossma@us.ibm.com)
+ *
+ *  Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
+ *  Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <linux/proc_fs.h>
+#include <linux/compat.h>
+#include <asm/atomic.h>
+#include <asm/uaccess.h>
+
+#include "ap_bus.h"
+#include "zcrypt_api.h"
+#include "zcrypt_pcica.h"
+#include "zcrypt_pcicc.h"
+#include "zcrypt_pcixcc.h"
+#include "zcrypt_cex2a.h"
+
+/**
+ * The module initialization code.
+ */
+int __init zcrypt_init(void)
+{
+        int rc;
+
+        rc = ap_module_init();
+        if (rc)
+                goto out;
+        rc = zcrypt_api_init();
+        if (rc)
+                goto out_ap;
+        rc = zcrypt_pcica_init();
+        if (rc)
+                goto out_api;
+        rc = zcrypt_pcicc_init();
+        if (rc)
+                goto out_pcica;
+        rc = zcrypt_pcixcc_init();
+        if (rc)
+                goto out_pcicc;
+        rc = zcrypt_cex2a_init();
+        if (rc)
+                goto out_pcixcc;
+        return 0;
+
+out_pcixcc:
+        zcrypt_pcixcc_exit();
+out_pcicc:
+        zcrypt_pcicc_exit();
+out_pcica:
+        zcrypt_pcica_exit();
+out_api:
+        zcrypt_api_exit();
+out_ap:
+        ap_module_exit();
+out:
+        return rc;
+}
+
+/**
+ * The module termination code.
+ */
+void __exit zcrypt_exit(void)
+{
+        zcrypt_cex2a_exit();
+        zcrypt_pcixcc_exit();
+        zcrypt_pcicc_exit();
+        zcrypt_pcica_exit();
+        zcrypt_api_exit();
+        ap_module_exit();
+}
+
+module_init(zcrypt_init);
+module_exit(zcrypt_exit);